Web 2.0 Advantages and Disadvantages

meshwork 2.0 Advantages and DisadvantagesAbstract mesh 2.0 dirty dog be exposit as different types of weathervane applications which abide race to publish friendship that they kick in created and handlewise e actuall(a)y(prenominal)ow to sh atomic number 18 with former(a) peck as rise as facilitating interoperability from e very(prenominal) weave application. This applied science allows throng to create, sh be, gather communicate. electronic network 2.0 does not require any technical skills to move into, This feature allows workrs to participate and use applications widely.For the straggle few divisions weave 2.0 technologies atomic number 18 showing their clear impact on our world. Mainly these sites read lead character in terms of user density and also click density. The density of mesh 2.0 users is also getting increased day by day. So the nub of conference between concourse and transcriptions changed from general print ads, television, radio, stat ic meshingsites etc to weave 2.0 applications. As we stern target specific type of category, blade 2.0 is the best way to communicate with hatful. So we gage assemble the whole form of parley standardized meetings, promotions, class rooms, support etc with weather vane 2.0 applications. So organizations be exhausting to leverage on vernal web 2.0 technologies like Facebook, turn animation, Y pop outube etc to improve their standards and also to get things do in fast manner.I start out d mavin look into on how organizations leverage on impertinent technologies to collaborate in every aspect of growth. I mainly foc employ on advertisement point of mickle as well as market place point of view. I analyzed some web applications like Wikipedia, Slidesh ar, Youtube, plump forlife, facebook.Introduction contextthither argon some(prenominal) organizations which are mainly operated by the people and for the people. Universities stand first in that position when compa red to otherwise fields like industries, factories etc. Here the world has been changing dramati wishy in such(prenominal) a way that people are seeking support from electronic world for their motivations like to historicalise new relationship, to gain tell apartledge and so on. Now meshing has establish the basic need for all people and it grabbed a reasonable amount of term from people. So universities now a days are planning to shift themselves partially or fully towards electronic world and collect attention of people to them selves for noesis sharing.We are now in the age of use meshwork 2.0 engineering w here any maven potbelly communicate their opinions to any one. They really help us in communicating things to world in just fraction of arcminutes.Digital natives in the in a higher place diagram means people with digital knowledge background. People who possess knowledge well-nigh digital applications like unstables, internet, digital communication etc. breed ing is being shared between people who are aware of internet. This is already in the use from the start of internet and internet is apply by people who know internet still.Internet Economics means economy that moves on internet through with(predicate) different applications. Internet economics is not very new for us and now a days businesses are completely dependant on internet and around of the large scale trading are been done using internet in digital coif only, which locoweed carry some benefits. This scenario helps in good in the faster growth of business.Read / compile Web means the common programme where we contribute read the information and at the same conviction we can write our sustain information. In general internet scenario we can any read or write like viewing a website or uploading a website. In classrooms also we can either find instruction things while supervisor demonstrates. We can not demonstrate while we learn in such a way that we can add amendme nts immediately. But using this Read/write engine room we can add amendments as per our thinking.Combination of digital natives, Internet economics and Read/Write web exit lead to Web 2.0 engine room. The best example for this is Ebay where we can sell our products (internet economics) by adding them into catalog and people can review them instantly(read/write web) and the site exit be used by people who know internet in their calculating machine or smart phones(digital natives)Web 2.0 can easily generate considerable knowledgebase within fraction of seconds. That Knowledgebase is the combination of people, engineering science and process. Huge knowledgebase is being produced using the Read / Write web applied science, with Internet Economics process by millions of people who are hands together. The huge database thus created go away be helpful for millions of people again. Web 2.0 is a relationship between Many People -to-Many People. In this pattern it is quite common that content will get changed very frequently and also umteen visitors follow frequently updated content only. In that situation no one wants to look at websites which are updated by admin once for a week. People requirement for huge knowledgebase demanded for the development of web 2.0 applications and as impost of those applications have increased, people started searching for business within those applications.An example for that is Wikipedia. Wikipedia will be getting updated very frequently by millions of volunteers and also is getting updated. This is how we are using read / write technology to collaborate.1.2 Background and brief history of Web 2.0 in Universities Web 2.0 in universities Even though web 2.0 transition has started few years back, web 2.0 implementation is not 100% done for 100% of universities. Universities are trying different technologies to leverage their businesses. Universities need to walk to a greater extent steps frontward defeating the odds like un-implementation.Issues in Web 2.0 implementation in UniversitiesRejection of change (like using new technology for educational activity) is playing key role in the process of slow implementation of web 2.0 technology. Students, Lecturers have their fright of using new technology because of un-implementation only.Another factor for slow conform toion of Web 2.0 governing body is no motivational force, which actually occurs when no body implements well and lack of exact correct information or so things. People are oftentimes aware of Web 1.0 technology only and they are fear using Web 2.0, this is also a factor for non-implementation of Web 2.0 technology.People are confident in using old type of educational activity and learning assuming that it is the correct process and web 2.0 will not suit for teaching and learning. That created embossment that Web 2.0 is not suitable for teaching.Copyrighted problems are other problem of using web 2.0 technology. We can not digitalize things because of copyrighted issues. As web 2.0 stands for openness and net relieve oneselfs, there is no security for copyrights. Universities are facing problem using web 2.0 in that aspect.Fear of culture aversion to innovation spectacular institutions can not implement web 2.0 as a whole for the broad(a) organization because of several factors like bureaucracy, governance, processs for decision-making. So it needs a visual modality of creativity and high motivation for the implementation of web 2.0 application for institutional cause.Barriers to the use of Web 2.0 technologyFear of facing criticism Managers in the blanket level who are decision makers are fear about facing criticism about the procedure of web 2.0 technology. The main cause for that is they hypocrisy experiment with people changing traditional model of teaching and learning.Fear of Security As we all know it Web 2.0 is meant for openness and any one can create profiles with any name(which are available) an d they can scrap anything that they want. So as fresher for Web 2.0 technology, managers cant risk keeping security aspect away from mind.Suppose if any university starts using web 2.0 in any sociable community like secondlife Security is main aspect there where we can signup with any lecturer username (if he/she have not taken yet) and may guide students wrongly. These type of instances will fear managers not to implement things.Elements for a strategy of web 2.0 ad natural selection in universitiesThe adoption of a web 2.0 approach to learning in universities is a complex process confronting measurable technological, managerial and human barriers. For these reasons the trope of a set of objectives and a strategy accepted and promoted by the managers, especially those in charge of knowledge management, is absolutely needed. This first step requires in many cases radical cultural changes for people used to work and make decisions in a different scenario. education from Experiences Since we are in the stage of experimenting with Web 2.0. We can not expect tremendous results from this but we can find a avenue to move through this schema very fast.Following leads in inner organizations When we find inner organizations, some people will be more interested in using new technology and some will not. So people who have interest in Web 2.0 learn faster than others and they can show the path to make others learn about new technology. This will allow system to implement new technology.Learning from industry when we consider similar institutions, only few institutions will take initiation and they will adopt new technologies which will help them in gaining fast experiences than others. So organizations which did not perform any experiments on web 2.0 can learn things from already enforced organizations which is a quicker way for learning things with out failure.Open access and use of contents The core advantage of Web 2.0 is openness and heavy accessibility of con tent to anyone. This allows creativity for the users and easy for finding things available with tagging. The information should be search engine golden and this content should be easy to catch in search engines also.Design of institution as programme for knowledge sharing This is main aspect in Web 2.0 technology. Institutions should allow users to post knowledge cerebrate information from both ingrained and external users of the organization platform. This allows users to show creativity and helps in finding new solutions for problems. This will also lower cost for innovation. The external development of web 2.0 tools would reduce considerably the cost of IT infrastructure and software. This will also help in fastening knowledge sharing.ReferencesFreire, Juan (2008). Universities and Web 2.0 Institutional challenges. eLearning text file N 8. ISSN 1887-1542The adoption of a web 2.0 approach to learning in universities is a complex process confronting important technological, ma nagerial and human barriers, and an adaptive strategy is needed that could be designed from previous experiences of educational, research and business organizations. This strategy could include the following linesLearning from previous and on- personnel casualty experiences, before developing a priori technology and protocols inside the institutions. Both lead users inside the organization and other organizations adopting web 2.0 tools and effigys should be especially useful. porta the access and use of contents. Web 2.0 is especially useful and creative when knowledge is digitized, modular and allowed to be used and distributed in a flexible way.Designing organizations as open platforms for knowledge creation and sharing, both among members of the internal community and with the participation of external users.ReferencesFreire, Juan (2008). Universities and Web 2.0 Institutional challenges. eLearning Papers N 8. ISSN 1887-1542Paul Anderson (Feb 2007) JISC engineering and Standard s put one overJohn Seely Brown and Richard P. Adler Minds of Fire open education, the long tail, web 2.0Web 2.0 Uses in universitiesResearch QuestionsWhat is the conditional relation of web 2.0 in universities?How universities are getting benefited from Web 2.0 technologies?How many universities are using web 2.0 to collaborate their classrooms? What are those?How many universities are using Facebook to communicate with students?How can use twitter to collaborate flyer board?Can we use Youtube for video demonstrations?How universities are using Secondlife to conduct virtual classrooms?Is virtual classroom really beneficial for the student to learn?How blogs are helpful for universities?What is the use of Slideshare in the process of learning?Can we use web 2.0 applications in mobiles or PDAs?How can we leverage advertising programs to web 2.0? heavysetChapter 1 presents the basic introduction and background of Web 2.0 technologies in which I explained briefly about Web 2.0. Res earch questions are also phrases in this chapter. This chapter will give better idea of web 2.0 technologies.Chapter 2 demonstrates about literature review in which the concept of Web 2.0 is explained clearly. I presented brief introduction about Facebook, Blogger, Youtube and other web 2.0 applications. Organizational uses of calculator mediated environments is an sub chapter included in the chaper 2Chapter 3 gives an idea of different research methodologies where I presented different methods to do a research study. I also included survey with a Web 2.0 user and I resolved solution for my research study.Chapter 4 demonstrates findings like how web 2.0 is getting used by organizations.I concluded my research with chapter 5 with my opinions about Web 2.0 in Organizations.Literature ReviewWorld before Web 2.0 Before 2003, the world looked to be to be semi connected. We used to check static sites and e-mails on the internet. Even though we had emails and websites, the world looked to be semi connected. Assuming if we had started a business and update in our website, it used to get days to overstep people about update as there was no proper network between people and the only connectivity between them is emails. In that situation, suppose if we want updated content, then it may take 1-2 weeks to get indexed by search engines and used to appear after a week time in search engines. in that location was no question of possibility to collaborate their businesses in those days. That was the problem of huge organizations and we can estimate nonaged and middle level organizations about that.In that situation people used to depend on website administrators only for the site updates. In that the system is manual in such a way that, whole system used to depend on single or multiple persons for update. No one knows when site will get updated and they need to check back for intimations.WEB 2.0 Introduction Web 2.0 is a set of economic, social, and technology trends that collectively form the basis for the next generation of the Interneta more mature, distinctive spiritualist characterized by user participation, openness, and network effects. (OReilly Radar)Web 2.0 has been described as an attitude not a technology by Davis (2005). We can call Web 2.0 as social revolution or social networking in which people will form a network of own interests and get intimations about them within seconds. In this way of social networking, any information could get pass with out delay.According to OReilly, Paul graham and Dion HinchCliffe, who are WEB 2.0 creators.Web 2.0 is here and it is bigArchitecture of Participation, the Network Effect (social network), and Harnessing the collective science are fundamentally new and different from web 1.0Web 2.0 is more about a paradigm shift in how people use the web, less about new technology. Web 2.0 is not found on a technology shift, but rather a usage Paradigm shiftThere are also people who argue Web 2.0 is functiona lly similar to Web 1.0 and there is have no difference. But we should agree the fact that people accepted Web 2.0 very well and are using in their daily routine.Fundamental Difference between Web 1.0 and Web 2.0 is before 2003 we used to operate internet for websites and emails. The websites were been modified by the owners itself and people will not get any intimations for the modifications performed on that website. People essential run an application in their client system to access anything. (like ms sentry for emails). That made things complex and people got bored of their non-participation.Revolution of social networking sites totally changed the way that people think. We need not install software in client system to access applications. Those applications will get installed in the master of ceremonies itself and can be accessible in any system using browser. Web 2.0 has changed entire world of communication and people started blogging and other networking , People who got waxed with non participation started social networking in their own way. Web 2.0 technologies like Youtube, myspace, facebook, flicker, blogs, RSS, Second life have came into limelight, People started creating their indentity in several web 2.0 websites and started developing their network with the help of communities. Web 2.0 has enlarged in such a way that major companies like google, Microsoft, yahoo started buying Web 2.0 sites like youtube, myspace for millions. Core advantage in collaborating businesses using Web 2.0 is a single line of publishing will blast information to thousands of people which lead to quick updating and ultimately reaches goal of targeting people for sales as well as support.Limitations with Web 1.0 TechnologyWeb 1.0 was meant for the purpose of viewing HTML documents and file sharing (FTP). That was not pretty good for some important functionality likeInteractivity This is very important for web applications especially for dynamic web applications. We m ay need railroad car refresh content grabbed from database which will help people in getting updated content within seconds. As this type of interactivity is very important for applications and Web 1.0 got failed in this feature which supports click and page refresh only. unmatched Way communication Web 1.0 supports only single way communication as phone call system in such a way that client has to pull data from host if he wants and server wont push any data self-actingally with out client interaction. That might be good methodology and it did not suited us in viewing automated content. This type of communication has inspired for the development of AJAX, which is one of Web 2.0 technologies. use AJAX we can initiate two way communication which actually works as client pull as well as server push. wishing of Data Reliability Actually in business applications we need to send and get data safely from server to client and vice versa. There should not occur lose of packets which se nds data from artificial lake to destination. So using web 1.0 technology there are some limitations which could not guarantee safe travel of packets from source to destination.Mobile browsing non supportability Applications developed using Web 1.0 could not be loaded in mobile browsers (which is called WAP browsing). This is some other limitation for Web 1.0 technology. Even though we need to go more ahead than Web 2.0 to utilize WAP services effectively, we have achieved a bit in case of Web 2.0 technology. (Using Web 2.0 technology also we could not achieve things like video upload etc, but we can view websites)Lack of support for Rich user experience Web 1.0 will not support flush user experience and we need toi refresh every time to check the content. Say if we want to signup for email account, it used to take 5 minutes at least (as we did used to check username will server every time). Now if we want to signup it will not take more than a minute.Benefits of Web 2.0 Techno logyWeb 2.0 technologies is widely used in peer to peer networks, social networks, web blogs, forums etc. much benefits of Web 2.0 technologies areAcceleration It accelerates the performance of web applications and could transfer data very fast from server to client system and the data will be very much reliable.Good User fundamental interaction Web 2.0 supports great user interaction in such a way that user could voyage through options very easily. wide and great way of publicizing things This could be achieved using Web 2.0 technology with the help of social networks, blogs, forums, Second life.Cheap way of advertising things Generally if we want to advertise things on electronic media, it may cost several dollars, but when we use Web 2.0 technologies like web blogs, social networks we can reach thousands of people with just a dollar cost.Several solutions for single problem We can find several solutions for single problem posted, which got posted in networking sites, web blogs etc. I assay learning ASP.NET few months back in that situation I got struck about initiation into programming. indeed I used facebook, orkut communities for solution where I got at least 30 responses in 24 hours time from people who are anonymous to me. indulgent way to collaborate business Using Web 2.0 technology we can collaborate businesses which leads to finding new solutions. People can find solutions for the real life problems using virtual ways.Leveraging Business We can leverage our business using these of web 2.0 tools like facebook, orkut, Second life. Main thing that leverages business will be instant messaging like RSS feeds. One of my friends got benefited in stock market because of RSS news where he gets every second updated news about listed companies in NASDAQ.Easy Online Presence This is the revolution which is been showing impact in the development of web 2.0 technology. We are enjoying benefits of Web 2.0 technology in such a way that we can leverage things on line using web hops such as ebay showcase etc.Is Web 2.0 an end for web development? Absolutely NO Web 2.0 is not an end for Web development techniques. We do have many other things to be implemented on portable devices such as mobiles. They can be implemented in advanced technology of Web 2.0 only and we are assuming that to be Web 3.0 technology, let us wait until we got things more sophisticated. Mean while we can research for more Web 2.0 applications while will help businesses to collaborate them. reckoner Mediated Environment (CMEs)What is CMEDifferent environment that are set about by computers is called computer mediated environments. In other words, if two computers are connected each other through a means of computer then it can be called as Computer Mediated Environment. General internet applications like emails, chats, social networks are examples for CMEs. Suppose a person in India is in contact with a person in United Kingdom through computers, then it can be called as Computer Mediated Environment. Here the media is computer so we are calling as computer mediated environment. canonical internet communication environment using applications like emails, chats can also be categorized into Computer Mediated Environment.Reference Communications of the Association for Information Systems (Volume 15, 2005) 82-91Impact of Web 2.0 on CMEs Every system which are connected through systems are termed to be computer mediated environment. Also server to own(prenominal) computer environment can also be stated as CME and websites can be categorized into that. With the adoption of web 2.0 technologies the nature of CMEs have entirely changed and people started using computer mediated environments as frequent as they can, which is the main reason of Web 2.0 revolution. People started using internet very well and so applications like mails, chat, video streaming etc. Web 2.0 got its importance in combining all the applications on a single platform. We have impro ved functionalities on a single platform in such a way that we can login into a website, email friends, chat with them with out using remove software installation, participate in community discussions, view videos, have conversation about my desertion get off etc. All the above things can be handled with out need of separate account logins. This could be possible using web 2.0 only. Thus Web 2.0 changed the way people deal with internet. Also Web 2.0 technologies made human to depend for any kind of solution.Facebook Facebook is the social networking website which was started in the year 2004. Mark Zuckerberg is the Founder, who started his facebook pudding stone in Massachussetts, USA. The head quarters is located in California, USA. More than 900 people are being assiduous in Facebook Inc.Main features of Facebook Facebook is the social networking website where users are interconnected to each other on single platform. That platform is nothing but Facebook. Not only user to u ser connectivity, but also have organization to user connectivity, which helps in leveraging business techniques. Users need to signup with facebook in order to use services from facebook website. Organizations can also start their own groups to which they can send invitations to users and subscribed users will get updates from moderator of the particular group(or community). The above is most interesting factor about facebook and the most helpful thing for businesses and we shall discuss about this in our next chapter. In facebook there are other options like walls, where we can post our ads which will be displayed to other users. News feeds are also helpful for users in facebook, in which users will get automatic updates like profile changes, event updates from their friends. Facebook also provides image hosting, where we can get unlimited photos to host. Another option called tagging which will be available to tag(mark) things using keywords. This option will be most useful one t o identify things quickly by other users. Many of the universities have their organizational groups in facebook (organizational groups are referred to as official groups) and friends group is referred to as student groups (these groups are been maintained by friends only for intercommunication). The main source of income for Facebook Inc is through banner ads and text ads. We can also send virtual gifts to other users. There is another option called chatting to chat with other users and poking option to poke users. Another important feature here in facebook is posting classified ads. Users can post classified ads in facebook for free of cost. This feature is very much useful for small businesses. Facebook started itself as simple lifelike interface(only with text) and have grown to fully graphical interface. About 11 months back, facebook started its profile linking with customized name like www.facebook.com/satishkakolluFacebook can also been viewed on other mobile devices also. F acebook has its own applications developed by its development team as well as voluntary contributors who nominate applications developed by their own. We can make some communication interfaces very ease using those applications. Facebook has their opening in different languages including Thai, Chinese, Punjabi, Telugu, Tamil and many more.SourcesEldon, Eric. 2008 Growth Puts Facebook In Better Position to Make Money. VentureBeat. http//venturebeat.com/2008/12/18/2008-growth-puts-facebook-in-better-position-to-make-money/.Facebook frowns on buddy-buyer company, By The New York Post. http//www.nypost.com/p/news/national/facebook_frowns_on_buddy_buyer_company_DixVGIpAnBGuoWCeMqt5QJhttp//www.alleyinsider.com/2008/10/zuckerberg-facebook-will-have-a-business-plan-in-three-yearshttp//developers.facebook.com/news.phpSecond behaviorSecond life.com is a virtual world website developed by calcium hydrate Lab in the year 2003. This website is accessible through specific software called Seco nd life viewer. Residents can explore, meet other residents, socialize, participate in the activities of individuals and groups, and create and trade virtual property and services to cope with, or running around the world, which residents call the grid. Second vitality, people over 18 years old, and young people who for the second life 13 to 17 years of age.Features of Second Life Second life can be viewed via Second life viewer software only. Users will be termed as residents and they will communicate with each other using customized avatars. Secondlife viewer will accept keyboard strokes only and we can fly from one region to another region using keyboard keys. There are several options like that and we can explore a lot of things using second life. Residents are of different types both free and paid. Now a days second life is charging $9.95 for paid members and comparing to free member it has advanced options. We can virtually reside in any place of the world which is the new c oncept of web 2.0. We can purchase things using Linden Dollar, this is the specialized currency in secondlife where we can purchase land ownership, islands etc. We can also purchase surname of the user, so that user can choose ours in the surname of their username as surname must be choosen from available username and business can purchase surnames to make them available to students.There are many opportunities for innovation and profit in the world, Second Life, because in the real world. To open a shop, sell gadgets, become a land speculation, the choice is you can make. Many residents are part or all of their real life income second life business. We can find different types of environments in Second life, some of them are Dancer, Musician, Editor, Player, Landscape etc. We can join in that particular environment.Business in Second Life We can do business in Second life like buying properties and maintaining our own organizations. We can maintain virtual classrooms and also can g ive presentations over there. Secondlife also helps in providing good market place for our businesses and many of the universities (mainly business schools and Top Companies) are already been there to satisfy their demand. I did ascertained companies like IBM having their virtual space there.Sources https//wiki.secondlife.com/wiki/UserPhilip_Lindenhttp//tleinsl.com/index.htmhttp//nwn.blogs.com/nwn/2009/03/million.htmlhttp//slurl.com/secondlife/Virtual%20Estonia/140/111/57/BloggerBlogger was started by Pyra Labs in shocking 1999 in San Francisco. Even though those days were boomed with dotcom revolution, they faced problems in getting them selves funded by venture capitalists.Using blogger, We can publish our voice for free and as simple as mailing, this is the core advantage of web 2.0 and in the previous case (in web 1.0 we must be aware of html code atleast to turn a website). With this the revoultion of easeness in web 2.0 technologies started. we can maintain our website for f ree of cost using blogger which comes with www.ourname.blogger.com (also www.ourname.blogspot.com after google purchased blogger). Simple user interface is the positive aspect for blogger.com where we can post our content using simple admin circuit board within seconds. We can use custom templates for our website. We can even upload our template to that website. We can easily make search engines to index our site easily. This is another core advantage of blogger and because of the same reason, many businesses have their blogs to communicate with people. Time stamping feature make blogger more popular, as user can know what is going on in those blog with time.Actually to upload photoes and videos to our website, it will take alot of coding work when we use web 1.0 but using blog

Climate change and human health

Climate neuter and gentle wellnessIntroductionThe negative impacts of temper transfer be numerous and wide ranging. provided none are as disturbing as those that pose a serious threat to human health (Smith et al., 2001). More everyplace, these negative impacts are extremely complex in nature.Climate change can pretend human health in several different commissions (Haines Patz, 2004). With a 0.8% rise in the primer surface temperature over the past 30 years ( Solomon et al., 2007) and a further expected increase of 1.1- 6.4 degrees over the next 100 years, climate change would result in volatile global temperatures, fluctuations in the worlds rainfall level, extreme droughts and severe floods all effecting human health adversely (Haines et al., 2005). The effectuate can be either direct in the form of a life threatening situation or indirect ones, with insalubrious consequences for biodiversity integral to human life existence.In addition, climate change can potential ly influence the part and quantity of disease carrying species thereby affecting the pathogens that carry those diseases (Bosello et al., 2006). According to WHO the fluctuations in global temperatures and rainfall rich person resulted in the deaths of around 150,000 people (Campbell-Lendrum et al., 2003). Furthermore, by 2030 the risk to human health from climate change allow almost double (WHO, 2002)Main Threats to Human Health disturbing system WavesThe rise in temperature predicted in future tense is most likely to ride more severe and prolonged heat waves (Hulme et al., 2002). Increased temperatures usually mavin to cardiovascular, cerebral vascular and respiratory diseases, especially in the elderly with high mortality rates (Haines et al., 2006). Heat waves are particularly dangerous for urban areas due to the urban heat effect often resulting in higher temperatures than less move rural areas. In the absence of a co-ordinate effort, the threat of a heat wave is all th e more real. In 2003 several thousand people died due to heat wave across Europe (Johnson et al., 2005 IVS, 2003). Severe heat can also channel to increase in humidity with negative implications for human health (Haines et al., 2006).Floods DroughtsAs the frequency and severity of floods and droughts increase, so do their withering impacts on human health, in a direct and an indirect way. Human life can be threatened or even lost as a result of fill or combat injury caused due to it. There are long term negative impacts on the victims mental state associated with inundate (French et al., 1983). Moreover, flooding can cause the release of toxic chemicals thereby constituting a health hazard (Albering et al., 1993-94). inundate often leaves behind a legacy of diarrhoeal and diseases related to respiration especially in crowded regions. Mental illness like anxiety can creep in after the damages of flooding in a population (Haines et al., 2006).Droughts can lead to infectious dis eases, extreme dry conditions which are passing conducive to forest fires and severe food shortages leading to low nutrition (Bouma et al., 1997).Malaria Infectious DiseasesInfectious diseases are mostly caused by agents normally in the form of insects. These insects are naked as a jaybird to slight temperature variations. With the increase in temperature due to climate change, there is a likelihood that the population of these carrier agents would increase. Temperature isnt the only variable moved(p) by climate change that helps such disease carriers. Factors like humidity, sea level rise, soil moisture and alteration in rain forest can positively affect the numbers of these insects. This can lead to an increase in the overall incident rate as well as an increase in the duration of the transmission season (Kovats, 2003).Addressing the IssuePolicy making with regard to assessing the impacts of climate change on human health needs to lead two basic notions vulnerability in futu re as well as the cost in terms of resources needed to implement the strategies in order to burn or mitigate the effect of climate change on human health (Ebi, 2008). Successful policies should be able to address the following basic issues select the most climate sensitive health problems, the kind between climate change and current health patterns, strategies available to help address the issue of climate change in terms of its costs on human health, and how can we successfully implement the health related climate change strategies (Ebi, 2008).ConclusionThe issue of climate change carries enormous significance with regard as to its impacts on human health. Several studies indicate a clear linkage between the climate change and its negative effects on human health. Climate change negatively influence human health in numerous ways with severe repercussions. lurchs in the different variables associated with climate change help levy the conditions harmful to human health. Policy m aking therefore needs to address some of the most sensitive and pressing issues in this regard. We should be able to target the issues in a more economic way as the costs of climate change mitigation are already perceived to be likewise high.BIBLIOGRAPHYAlbering HJ, van Leusen SM, Moonen EJC, Hoogewerff JA, Kleinjans JCS. Human health risk assessment a case study involving heavy metal soil contamination after the flooding of the river Meuse during the winter of 1993-1994. Environ Health Perspect 199910737-43Bosello, F., Lazzarin, M., Roson, R., Tol, R.S.J., 2004. Economy-Wide Estimates of the Implications of Climate Change sea Level Rise, Research Unit Sustainability and global Change FNU-38. Centre for Marine and Climate Research, Hamburg University, Hamburg.Bouma MJ, Kovats SR, Goubet SA, St H, Cox J, Haines A. Global assessment of El Ninos disaster burden. fizgig 1997 3501435-8.Campbell-Lendrum, D., Pruss-Ustun, A., Corvalan, C., 2003. How much disease could climate change c ause? in McMichael, A.J., Campbell-Lendrum, D., Corvalan, C., Ebi, K.L., Githeko, A.K., Scheraga, J.S., Woodward, A. (Eds.), Climate Change and Health Risks and Responses. World Health Organization, Geneva, pp. 133-158.Ebi, K. Burton, I. 2008 Identifying practical adaptation options an approach to address climate change-related health risks. Environmental Science Policy II, 359-369.French J, Ing R, Von Allmen S, Wood R. Mortality from flash floods a review of national weather service reports, 1969- 81. state-supported Health Rep 198398584-8.Haines, A. Patz J. Health effects of climate change. J Am Med Assoc 200429199-103Haines, A., Kovats, S., Campbell-Lendrum, D. Corvalan, C. ( 2006) Climate change and human health Impacts, vulnerability and public health. Public Health (2006) 120, 585-596Hulme M, Jenkins GJ, Lu X, et al. Climate change scenarios for the United Kingdom the UKCIP02 scientific report. Norwich Tyndall Centre for Climate Change Research, School of Environmental Sc iences, University of East Anglia 2002.Institut de Veille Sanitaire. Impact sanitaire de la vague de chaleur en France survenue en aout 2003. Departement stilboestrol maladies chroniques et traumatismes, Departement sante environment, Paris 2003.Johnson H, Kovats RS, McGregor GR, et al. The impact of the 2003 heatwave on mortality and hospital admissions in England. Health Stat Q 2005256-11.Kovats S, Bouma MJ, Hajat S, Worrell E, Haines A. El Nino and health. Lancet 20033611481-9.Shea, K., Truckner, R., Weber, R. Peden, D. 2008 Climate change and allergic disease. Clinical reviews in allergy and immunologySmith, J.B., Schellnhuber, H.-J., Mirza, M.Q., Fankhauser, S., Leemans, R., Erda, L., Ogallo, L., Pittock, B., Richels, R., Rosenzweig, C., Safriel, U., Tol, R.S.J., Weyant, J.P., Yohe, G.W., 2001. Vulnerability to climate change and reasons for worry a synthesis. In McCarthy, J.J., et al., (Eds.), Climate Change 2001 Impacts, Adaptation, and Vulnerability. Press Syndicate of th e University of Cambridge, Cambridge, UK, pp. 913- 967.WHO, 2002. The World Health Report 2002 reduction Risks, Promoting Healthy Life. World Health Organization, Geneva.

March Of The Penguins | Analysis

March Of The Penguins AnalysisThe emperor penguins have a unique and exhausting junction ritual, which is said to exemplify a handed- knock down family life. While origin on the wholey think to be a simple nature documentary, March of the Penguins, turned into a phenomenon in the United States. umpteen concourse viewed the emperor butterfly penguins dedication to their families and the mating ritual as a model for a traditional and conservative family that al approximately Americans atomic number 18 lacking. Family values ar a somewhat controversial issue collect to its large basis in ethics. Ethics is a set of guidelines or morals that volume or a culture use as a rubric for peachy or bad mien and decisions. The family values promoted in March of the Penguins argon ethical according to the American way of life. This select was produced by French filmmakers and narrated by Morgan Freeman. Further more, it was the second highest grossing film in the United States (Mille r). After premiering in the United States, reviews began to imbue that raved of the conservation values pushed in the film as well as traditional family values. The documentary, March of the Penguins, was extremely successful due to the tryation of the portrayal of conservation in a non-scientific manner and the family values promoted by personifying the penguins in the film.March of the Penguins is a documentary created and produced by French filmmakers, Luc Jaquet, Michael Fessler, and Bonne Pioche, which documents the yearly journey of the emperor penguins in Antarctica. Narrating the American version of the film is by the infamous Morgan Freeman, who is notorious for his voice that can make all moment on film moving and meaningful. Utilizing him as the only kind voice heard in the film gives it much more of an impact on audiences of all walks of life. The writers and producers created a film that document the tall(prenominal) journey that these amazing animals make each( prenominal) year and their mating rituals that are unlike any different.Emperor penguins have many fine characteristics, that unless seen up close they would neer be visible to the human eye. Emperors are the largest of all penguins-an average bird stands some 45 inches (115 centimeters) tall (Forsteri). Emperor penguins are the father of all penguins. Each summer the Emperor penguins hunt and collapse on fish in the ocean. The penguins instinctively have their journey seventy miles inland as a species to the mating grounds where they then find their unadulterated mate for the next year. While at the mating grounds, the female emperor penguin gives birth to a single(a) egg. After she gives birth, she leaves for the ocean to feed again while the male emperor penguin remains at the mating grounds with the other males to warm and protect their egg all through the brutal winter. These penguins attain their strong-arm features in order to survive the harsh habitat they have to resi de in. The males wait until the females redeem in the spring when their young hatch from their eggs. The winter is extremely relentless and harsh in Antarctica, especially inland where the mating ground is. There are several sunless days and many more with unforesightful sunlight. The males have no food to eat and must rely on the fat they built up over the summer to feed them and keep them warm through the season. These penguins use many conservation tactics in order to survive in the worst of times. By the time the egg has hatched, emperor penguins testament have fasted round 65 days through icy temperatures and they will have survived the brutal meander chills of inland Antarctica reaching as low -76F (Forsteri). To help survive, the males all gather in a large huddle with their backs to the outside to keep warm. They rotate turns being on the outside where it is the coldest and being in the center where it is the warmest. By learning and utilizing how penguins conserve can only benefit everyone on a orbicular level. Reducing our own carbon footprint will decrease the effects of Global Warming. One of the most important things we can do, as penguins do, is work in a group. Humans should help others and work with others in conserving energy, resembling to the way emperor penguins work as a group to keep each other warm. Humans can cut down on the use of air conditioning and heat, for example, which will hold open a vast amount of energy. There are numerous ways for humans to conserve our habitat, similar to the way penguins conserve their habitat which will help our earth as a whole.The females then return in the spring just as their young are hatching so that they can feed them and relieve the males from their long months of protecting their offspring with no food. The mothers take the task of teaching the young penguin chicks about the world, because one day soon those baby chicks will have to carry on the tradition for the excerpt of their speci es (Anderson). As in traditional American families, the mother penguin is in charge of caring for their offspring afterwards they emerge from the egg.The filming technique in March of the Penguins is impressive and gives the documentary a much more up close and personal feeling. There are many close-ups of the penguins throughout the documentary. Additionally, scenes reveal footage that have never been captured on film. One of the more touching moments occurs during the mating season, an Emperor penguin couple pose with their heads bowed down together in an almost kissing embrace. They were also able to capture the penguins as they were feeding submersed during the summer, preparing to make their amazing journey inland for the winter. Being able to see these creatures up close puts the viewers in their shoes, if they could wear any. The shots that these videographers were able to capture are breathtaking and captivating, in turn keeping the audience enthralled throughout an otherw ise boring and straightforward documentary. The filming techniques in this documentary are most definitely a large air division of the reason for its huge success in the United States.The reading appears that the message of family values is a form of expression through the movie March of the Penguins. Let us assume that when groups of people watch or listen to a film, each individual will interpret the information differently. Peoples personal views are ethically different, depending on what he or she understands and perceives to be true and right. When interviewed by the London Times March of the Penguins director Jacquet, who has never made a film for the cinema before, is bear on that his documentary has been hijacked. For me there is no doubt about evolution. I am a scientist. The intelligent formula theory is a step back to the thinking of 300 years ago. My film is not hypothetic to be interpreted in this way (Malvern). Yet by examining the film, its message reveals a stron g mite of traditional family values and monogamy.For example, the films story of unswerving portrayal that penguins function in the same manner each mating season cycle. It reinforces monogamous heterosexual family makeup as a natural and necessary part of life. The story of the penguins depicts total parental sacrifice and dedication to the offspring and the traditional family structure. First, in the scenes in which the penguins are having intercourse are only implied. The director only reveals intimate shots of wings and beaks, as tender engaging music plays in the background. This parallels the idea of traditional family values, rather than the actual act shown, as if the penguins intercourse is offensive. Furthermore, the film characterizes the penguin family as incomplete unless both parents and the chick are together, seeing that a single parent does not represent a traditional family structure. One scene in the film, a mother penguin loses her chick, Morgan Freeman express es that the blemish is unbearable and the film illustrates painful flashbacks in reference to the moments that the mother cherishes with her chick. The insinuation of these scenes to many traditional families clearly personifies penguins, as if they are the perfect human. It is unspoken that mothers should only exist for the welfare of their children and family. Somehow a apprehension has taken root that there is a whole persona that you have to adopt to impress people and convince them you have the perfect family (Ferguson, 148). No individual is perfect, nor is any family by any means. Taking a closer look at this film assists families in evaluating their own family value system.As a scientist Jacquet realized, What I genuinely discovered in Antarctica was my desire to be a storyteller, he explains. There are other people there who know the story there are geologists and physicians and meteorologists and they experience all of this, but I matt-up like it was really my calling t o be able to share this with the outside world (Grady). The film imitates human characteristics, such as the closeness of the family unit. The film portrays the story of the penguins as a cognize tale, displaying the unconditional love of the family dynamics through sacrifice, discipline, and unconditional love for their children, that we as individuals could learn from. Lastly, the documentary was not scientific in how they depicted the tale of the Emperor penguin. Richard A. Blake, co-director of the film, states You get a sense of these animals following their natural instincts are really exercising virtue that for humans would be quite admirable, he said. I could see it as a statement on monogamy or condemnation of gay marriage or whatever the current agenda is (Miller). By humanizing the story, the audience is able to effectively grasp and sympathize with the lives of the penguins, by association with their own. saving and family values are important subjects to Americans t oday. Both influence their lives in various but important ways. Having good conservation practices and being c oncerned with the atmosphere will help better our environment and the world for those who are yet to come in the future. Family values affect how people act and react to situations and carry themselves among their families. How a person is raised in their home as a young person up until their maturity date shapes them into who they will become. This then affects how they treat others and how they decide what is wrong or right in society once they are on their own. The documentary, March of the Penguins, is a film that inspires audiences in America to become more environmentally conscious and better their family life and values at home.

Managing Intelligence in National Security

Managing watchword in National SecurityAt which stage of the cognizance regular recurrence is failure most belike to occur, and why?The most common, traditional mental image for managing scholarship flow is a troll of four comp 1nts direction, assembling, bear upon, and dissemination. Direction comes from policymakers heads of disposal agencies, heads of state, senior government officials tasked with overseeing tidings, and the like, who provide some(prenominal)(prenominal) specific and general roadmaps to acquaintance agencies as to how they should apply their resources to defend national interests twain at base and abroad. Collection is the process by which intelligence is gathered in a variety of fashions via HUMINT intelligence data collected by individualised, human run on the primer electronically, e.g. SIGINT (interception of signals), IMINT (satellite, photographic imagining intelligence), etc. Processing is the abstract of the data obtained in the hookup component, the means by which the nature, relevance and comparative importance of the collected intelligence is ascertained by means both scientific and intuitive. (Arguably, processing is the most important component of the cycle, but the least(prenominal) amount of money is much budgeted to this component of the cycle.) Dissemination refers to the process by which the relevant information is channeled to the appropriate decision-making party within a termtable coextensive with the importance of the information collected and the results of the processing/analysis.Each of the four components of the cycle is fraught with peril for failure and failure in any one component cigaret be catastrophic. The deuce atomic do 18nas where failure is most likely to occur, however, are collection and analysis.Failures in collection are often receivable to lack of applied resources, whether technical or human. The debate has raged for decades over whether HUMINT is higher-up to intellig ence data gathered by increasingly advancing technological wizardry. Most likely, a healthy application of and symbiosis between the two is critical. There is no substitute for the personal presence of agents, operatives, and contacts on the ground, tardily integrated with useful components of whichever society in which they are placed. The Central password Agency (CIA) was woefully lacking in human collection efforts in Afghanistan in the wake of the 9/11 attacks, and in Iraq during the same time period (though to a slighter extent). Compounding matters was the dearth of CIA field operatives or domestically-based personnel who spoke the common languages of the Middle East Arabic, Farsi, Pashtun, etc. However, speedy advances in computer technology nurse enabled the collection of vast quantities of fresh intelligence data telephone calls, e-mails, radio trans delegatings, etc., and intelligence agencies who lack much(prenominal) technology will invariably be at a immense disadvantage.Failures in processing/analysis can occur when the collection apparatus has delivered all of the puzzle pieces, usually due to either a joint/institutional, or individual inability to connect the proverbial dots and turn tippy data into actionable intelligence conclusions. The 9/11 attacks are a regrettably perfect example of failures in analysis. Discrete entities in the U.S. intelligence community the Federal Bureau of Investigation (FBI) and CIA, as well as new(prenominal) government agencies (the Immigration and Naturalization Service and Federal aviation Administration) all possessed nuggets of raw data which if analyzed properly, would clearly have indicated (in fact, some say did definitively indicate) that an Al-Qaida attack on the U.S. using airplanes was imminent. However, these entities failed to pct this data and collaborate cooperatively to analyze it. Turf warfare, egos, bureaucratic inertia, and competing political agendas can easily cause fatal paralysis in intelligence processing.The cost of secret action tend to outweigh its benefits. Discuss.The question of whether the be of covert action outweigh its benefits depend greatly on the circumstance of the covert action is it an ongoing, multi-year low-intensity campaign involving numerous agendas, or is it an urgent, high- precession single mission designed to achieve a massive single strategic mark? Also, the notion of costs mustiness be defined in sexual relation terms monetary costs, human costs, opportunity costs indirect costs (unintended consequences) other abstract and intangible costs such as ethics, lawful ramifications, etc. The CIA has long been involved in low-intensity covert actions in a variety of nations, with varying degrees of success. The Iran-Contra affair, in which Reagan administration officials diverted proceeds from the barter of arms to Iran to anti-Marxist Nicaraguan rebels in the mid-1980s, was costly in both monetary terms (hundreds of m illions of pounds) and legal terms a number of Reagan administration officials were subjected to flagitious charges for their roles in facilitating both the operation itself and the cover-up of the operation (the American sexual relation had passed a law forbidding U.S. government direct aid to the Contras).However, in the wake of 9/11, when the U.S. government concluded that decisive force was postulate to respond to Al-Qaidas attack on U.S. soil, the CIA and DoD (Department of Defense) were trustworthy by President Bush to spend whatever was necessary to follow through some of the most bold covert actions specially in HUMINT undertaken by American intelligence agencies in decades. HUMINT capacity at the CIA eroded as, ironically, the deterrent example excesses of covert activities of the 1960s-1970s caused a backlash that choked off HUMINT funding priority also, the end of the Cold War led many policymakers to conclude that the CIAs resources were better spent on electro nic means of collection, as covert action can be prohibitively expensive in both time and money. However, the CIA was authorized and ordered to act boldly and within a matter of weeks, had substantial HUMINT on the ground in Afghanistan both aggregation data and coordinating with DoD soldiery planners to leverage intelligence into actionable military plans. The goal to defeat the Taliban, who had hosted Al-Qaida in a in darkness symbiotic relationship which held the country in a repressive throttlehold and provided safe haven for the training of thousands of would-be terrorists. Mindful of the failure of the Soviet Unions 1979 invasion of Afghanistan, CIA realized that only an asymmetrical application of covert power (mirroring Al-Qaidas approach to the 9/11 attacks, ironically) would be effective, as a received ground war could be too costly in both manpower and lives on both sides.A shrewd application of HUMINT, technology, and good old-fashioned money engineered the relative ly rapid American triumph in Afghanistan in 2001. CIA operatives on the ground descended into Afghanistan with little support, made contact with sympathetic Afghan warlords, dispensed hundreds of millions of dollars to other warlords and tribal leaders, in some cases simply to bribe them into switching sides and oppose against the Taliban and Al-Qaida. These same operatives also used hand-held laser GPS equipment to target rival strongholds and transmit this location data directly to U.S. aircraft, who in turn dropped laser-guided bombs with evil efficiency. The cost was in the billions, but the victory was swift, decisive, and given the ramifications of the triumph passing inexpensive, relatively speaking. As such, not all covert operations are too costly to make them worthwhile.Discuss the importance of open sources collection in comparison to underground collection. Is clandestine collection indeed more important?Open-source(s) collection refers to the collection of acti onable or otherwise valuable/relevant intelligence data from exotericly available sources. Prior to the coming of the Internet, this methodology was not without value, but in many cases prohibitively time-intensive, and less prone to yield results. Though the type of information available to the public at a local library might surprise a layperson, it is dwarfed by what is now available on the Internet to anyone with a personal computer. In some cases, an intelligence analyst sitting at a desk in London can gather valuable, reliable information rough conditions on the ground in a city halfway crossways the globe weather conditions, local news, political and business developments, cultural idiosyncracies. another(prenominal) sources of OSINT, as it is termed, include diverse sources as consultations with experts in various palm within academia or the business knowledge base, professional associations, professional conventions, to naive thoughtful Google searches and reading of blogs.The trend globally is towards an ever-increasing amount of openness of information exchange thanks to the Internet. Increasingly sophisticated sweeper data-mining software technology, which is often used to collect and in some cases process large volumes of conventional communication traffic, are being utilized by the CIA to scan millions of websites, inquisitory for key terms, phrases, contexts, which might indicate that human review would be plus or essential. Instructions to make improvised explosive devices can easily be posted on websites, and 21st century intelligence collection must conform to this new reality.In comparison, the best use of clandestine intelligence vis--vis OSINT efforts is to obtain highly specialized or esoteric intelligence information that is either intentionally kept confidential (classified government secrets, for example). OISINT processing and analysis can help frame and answer a number of general questions and/or analyze larger patterns an d trends, whereas clandestine intelligence can help answer targeted, specific questions that cannot be ascertained by either human or computer OSINT efforts.For example, in response to the intelligence reforms demanded in the wake of the failure to anticipate and prevent the 9/11 attacks, the CIA form an Open Source Center (OSC) to focus specifically on OSINT. In 2004, OSC used OSINT technology to discover that a new, powerful Chinese zep had been constructed in an underground location heretofore unknown to the American military and intelligence community. The tip-off? Chinese military bloggers, one of whom posted a photograph of the impressive new Chinese submarine (the Yuan-class attack submarine) on a publicly viewable website. CIA in turn employed HUMINT and electronic surveillance to ascertain where the submarine had been constructed and what its operational abilities might be. In a less dramatic example, OSC searched Iraqi websites for postings related to the use of IEDs (Imp rovised Explosive Devices), in some cases gathering actionable data which helped avert the use of these deucedly terrorist tools. (The inadvertent destruction of the Chinese embassy in Belgrade in 1999 by NATO bombs might have been averted by some of the most rudimentary OSINT having a human operative walk down the street to make undisputable the military targets address was correct.) Clandestine collection activities, particularly HUMINT efforts, will always have their place, but in a world where information is available anywhere, anytime, at the click of a mouse, intelligence agencies must dedicate significant resources to OSINT.

Construction of Recombinant DNA in E Coli

Construction of Recombinant deoxyribonucleic acid in E ColiIn 1973 Stanley Cohen and Herbert Boyer pi hotshotered the usance of recombinant desoxyribonucleic acid technology for copy and feeling of factors in foreign organisms. They dead ringerd deoxyribonucleic acid from the Salmonella typhimurium streptomycin resistance plasmid desoxyribonucleic acid RSF1010 into the Escherichia coli plasmid pSC101 and observed tolerance to streptomycin among the transformants (Cohen et al., 1973). The world-class reported harvest-homeion of a humans recombinant protein took place a some years later when the whence fresh started biotech comp whatever Genentech announced that they had managed to express the gene encoding human somatostatin in E. coli (Itakura et al., 1977). The value of the resulting bioactive substance was similar to that of somatostatin extracted from the brains of 500.000 sheep. In 1982 Genentech followed up this success with the product humulin, a recombinant insul in rised in E.coli and the original recombinant biotech drug to be accepted for grocery by the Food and Drug Administration. Today the production of recombinant proteins has become a huge global indus bring on with an annual market volume particular(a) $50 billion (Schmidt, 2004). At the start of the recombinant protein sort era the bacterium Escherichia coli and Bacillus spp. dominated as hosts for recombinant bearing, but the realization that a protein may require a specific host physiology and biochemistry for optimal production touch on a search for new hosts, both prokaryotic and eucaryotic. Parallel to this quest, recombinant deoxyribonucleic acid technology advanced tremendously thereby opening up possibilities for the do of novel organisms. As a consequence, many different looking at systems for use in many different hosts argon now available, including systems for use in yeasts (Gellissen et al., 2005), filamentous fungi (Nevalainen et al., 2005), insect and animal cell cultures (Wurm, 2004 Kost et al., 2005), gram-positive bacteria like Bacillus (Westers et al., 2004) and Streptomyces (Binnie et al., 1997), and gram-negative bacteria like Escherichia colibacterial expression systems be the preferred cho methamphetamine hydrochloride for production of many prokaryotic and eukaryotic proteins. The reasons for this lie in the cost-effectiveness of bacteria, their well-characterized genetics, and the avail mogul of many different bacterial expression systems. Among the hosts available for recombinant expression, Escherichia coli is in an exceptional position. This stems from the many decades of intense researchon its genetics as well as the broad scope of biotechnological tools available for genetic technology of this organism. As a host for recombinant expression, E.coli is especially valued because of its rapid offshoot rate, capacity for continuous fermentation, low media costs and achievable high expression takes (Yin et al., 2007) . One consequence of this popularity is that ab reveal 80% of all proteins utilise to shed light on 3-dimensional structures submitted to the protein data bank (PDB) in 2003 were prepared in E.coli (Srensen and Mortensen, 2005) and during 2003 and 2006, golf-club graduation up of 31 approved therapeutic proteins were produced in E.coli (Walsh, 2006), among them definitive ontogenesis factors, insulins and interferons (Schmidt, 2004). park Fluorescent Protein (GFP) was isolated from the jellyfish Aequorea aequorea in 1962 (Shimomura et al., 1962) where it was found as a companion protein to aequorin, the well-known chemiluminescent protein of the equal species. It was noticed that sustentation A. aequorea tissue had an emission spectrum peaking at 508nm and looking green but thin aequorin peaked in the blue range, at 470nm (Tsien, 1998). This thusly led Shimomuras base to discover GFP and suggest radiation-less energy transfer as the mechanism for fire the protein. Its structure has been restored to consist of an 11 stranded -barrel breaking the chromophore made up of a single helix as shown in Figure1.Its use as a tool in molecular biology was not pull in until 1992 when Prasher reported the cloning and sequence of GFP (Prasher et al., 1992). Since 1994 GFP has been used as a newsperson protein (Chalfie et al., 1994) flagging its own presence and therefore also proteins under the same learn, by emitting green light (em = 508 nm) upon excitation with near ultraviolet light ( around 395 nm) or blue light (around 470 nm) (Ito et al, 1999). Since and then many mutations study been developed looking to improve the emission or to focus it to a single wavelength (Heim et al., 1995) or to change the color of the emitted light itself.Recombinant DNA molecules unremarkably contain a DNA fragment inserted into a bacterial vector.Polymerase string reaction (PCR), a specific gene or DNA surface area of pertain is isolated and amplified by DNA pol ymerase extracted from a heat-tolerant bacteria. PCR finds the DNA character of provoke (called the tar becharm DNA) by the complementary binding of specific trivial primers to the ends of that sequence. The long chromosome-size DNA molecules of genomic DNA must be distinguish into fragments of a much smaller size forrader they throne be inserted into a vector. Most write outting is done with the use of bacterial restriction enzymes. These enzymes cut at specific DNA sequences, called restriction sites, and this property is one of the fundamental features that fuddle restriction enzymes suitable for DNA manipulation. These enzymes are good examples of endonucleases that cleave a phosphodiester bond (Anthony, 2012). The key property of some restriction enzymes is that they need gluey ends. The restriction enzyme EcoRI (from E.coli) recognizes the following sequence of six nucleotide pairs in the DNA of any organism5-GAATTC-33-CTTAAG-5The enzyme EcoRI makes cuts only betwe en the G and the A nucleotides on each strand of the palindrome (Figure.2).The recombinant DNA molecules are transferred into bacterial cells, and, generally, only one recombinant molecule is taken up by each cell. The recombinant molecule is amplified along with the vector during the division of the bacterial cell. This process results in a clone of identical cells, each containing the recombinant DNA molecule, and so this technique of amplification is called DNA cloning. The next peg is to find the rare clone containing the DNA of interest.Bacterial plasmids (vectors) are small circular DNA molecules that replicate their DNA breakaway of the bacterial chromosome. The plasmids routinely used as vectors hightail it a gene for drug resistance and a gene to distinguish plasmids with and without DNA inserts. These drug-resistance genes submit a convenient way to select for bacterial cells transformed by plasmids those cells sedate alive by and by exposure to the drug must carry the plasmid vectors. However, not all the plasmids in these transformed cells will contain DNA inserts. For this reason, it is desirable to be able to identify bacterial colonies with plasmids containing DNA inserts. Such a feature is part of the pUC18 (or pUC19) plasmid vector shown in Figure 2 DNA inserts disrupt a gene (lacZ) in the plasmid that en engraves an enzyme (-galactosidase) prerequisite to cleave a compound added to the agar (X-gal) so that it produces a blue pigment. Thus, the colonies that contain the plasmids with the DNA insert will be white rather than blue (they lotnot cleave X-gal because they do not produce -galactosidase).The following experiment outlines the construction of recombinant protein production in E.coli strain BL21 by using a bacterial plasmid vector pUC18/19 expressing Green Fluorescent Protein (GFP) to act as a recombinant protein product with the benefits of being motiveless to visualise and measure.Materials and MethodsMaterialsThe experiment was carried out using the following materials and Equipments 2l EcoRI/HindIII cut and crackinged PUC19 vector, 5l EcoRI/HindIII cut and cleaned GFP insert, 2l 10xT4 ligase buffer, 2l T4 ligase(0.5 U ml-1) , and 9l sterile water (H2O) to make up to 20l volume . cokel of competent BL21 E.coli cells on ice, 42C water bath, Ice bucket with ice, selective media plates (1.5% Luria neckcloth (LB) Agar, 40g mL-1 X-gal, .1 mM IPTG, 50g mL-1 ampicillin), sterile tubes, chill incubator, Spectrophotometer or similar device to measure optical density of the bacterial cultures, flasks, Micro centrifuge.MethodsIt can be divided into ternion stagesLigation Reaction stage in this stage 2l EcoRI/HindIII cut and cleaned PUC19 vector, 5l EcoRI/HindIII cut and cleaned GFP insert, 2l 10xT4 ligase buffer, 2l T4 ligase (0.5 U ml-1) , and 9l sterile water (H2O) are mixed and kept at live temperature for at least 30 minutes.Transformation of ligation into cloning host stage this stage conducted by defo resting 100l of competent BL21 E.coli cells on ice (with caution do not allow to warm to room temperature), then adding 10l of the ligation reaction from the first stage to BL21 E.coli cells. They are then incubated for up to 30 minutes on ice. Next step, is done by taking out the rendering variety show out of the ice and heated in water bath at 42 C for closely 75 seconds, then followed by return immediately into ice for a minimum of 2 mins. whence the cells were plated out on selective media plates (1.5% Luria ancestry (LB) Agar, 40g mL-1 X-gal, .1 mM IPTG, 50g mL-1 ampicillin). Lastly, the transformation mixture is incubated at 37 C for 12-18 hours afterwarddriedd.Picking of colonies for the protein expression stage 2x5ml LB +50g ml-1 ampicillin in 30ml sterile tubes were prepared, then 1xBlue undivided addiction and 1x white individual colony selected and inoculated in separate tubes. Then the tubes were incubated with shaking incubator throughout the night at 37C , spe ed 220rpm.Subculture and Growth of Recombinant E.coli for Protein expression At the beginning, 2x60ml sterile Luria-Bertani (LB), in 250ml cone-shaped flask were warmed , (1 per inoculums ) at 37 C, Then aseptically the ampicillin was added to a last concentration of 50g ml-1 ampicillin. Next 1 ml of media was remove and was give in a cuvette to act as prevent (one blank is enough for both ouh), followed by addition of 600l long to calture of each individual colony to separate flask (1100 inoculum), the flasks were adjust back to the shaking incubator and incubated at 37C, speed 200rpm , after that blank spectrophotometer was placed against media at 600nm , after 45 minutes the samples were removed aseptically from flasks, then from every(prenominal) flask 1x 1mL was removed and added to a fresh clean cuvette (take to next step 8) and 1x1ml was added to clean Eppendrof (take to step 9) . The OD600nm of culture in cuvette was mensural and the result of harvest-tide slide w as recorded (once the culture has reached an OD 600nm of 0.5, IPTG was added to last concentration 1Mm stock solution. Then samples were spun down in the Eeppendrof tube at max speed in Microcentrifuge for 5 minutes , ensure centrifuge is balanced before spinning , the supernatant was removed and snap ,then the pellet was suspended in 200l Cell lysis buffer (10mMl Tris PH8.0, 300Mm Nacl , 10mg ml-1 Lysozyme). Resuspended cells were rimed at -20 c to the next day. Lastly, sampling was continued until OD600nm is no longstanding rising for two successive samples or until 1630 pm.Results and preachingAlthough it is supposed to harvest between 30-300 colonies per plate (210- 2100 colonies for all groups), just three blue colonies were observed in plates between all groups, which mean that protein of interest (GFP protein ) was not expressed (inefficient) in BL21 E.coli cells due to some factors influenced the expression level or to some technical problems during the experiment which will be discussed.The closely popular strain, BL21 and its derivatives, which are good producing protein, are descended from E.coli B and thus is lacking(predicate) in the Lon protease. Additionally, the BL21 minimise lacks the OmpT outer membrane protease. For expression work, BL21 cells should be taken from stock cultures that performed from fresh transforms. This step is crucial to insure that the clone does not change and that each expression run gives optimal performance.Transformation frequency is affected by the purity of the DNA, how the cells are handled, and how the transformation was actually performed. In the impurities in the DNA usually spin columns can be used to purify DNA from PCR reactions, ligations, endonuclease digestions, or other treatments. In addition, the closely viridity mistake when transforming E.coli is to put a lot of ligation mixture in the transformation. other(a) factors that effect transformation with BL21 are the handling and the storage of the competent cells. efficient cells need to be reserved at -70C to keep them at the peak .It is worthy of noting that 5-10-fold of aptitude usually lost if tube put back in the box and place in the unleashzer. Moreover, Cells must be thawed on ice, and the transformation should be started immediately after the cells are thawed. Incubating on ice is necessary for chemically competent cells. If you heat buffet right away, the efficiencies will be down 10-fold. If incubate for only 15 minutes, it will be down 3-fold. In addition, time of heat knock (75 second) could be not enough , thus, affect the efficiency enough to transformation of E.coli. Moreover, water bath temperature may be not equilibrated (less than 42C or a higher which decrease in transformation efficiency ( Smith, et al, 1992).Also, the concentration of DNA has significant effect on the transformation efficiency , usually less amount of DNA is used. If using more, the result is less colonies because the impuritie s in the DNA will inhibit some of the cells from being transformed. in that location are main factors to consider during induction conditions Vector, Host Strain, and Growth Conditions. These three factors admit the biggest impact on the expression of the protein of interest. First on the tendency of considerations is the vector that is used to express GFP protein. The first thing should be considered after cloning, the protein of interest is still in frame. It is recommended that before any experiment is carried out the first thing is should be done is cloned plasmid (or a few different clones) sequenced. This will show if the sequence you inserted into the expression vector is still correct and is still in frame. This is especially important if the construct contains any PCR fragments. If there are any point mutations or the sequence gets out of frame by even a few bases it can have dramatic effects on the protein that expressed. Another thing to check before expressing is if t he GFP protein sequence contains long stretches of rare codons. This can cause the protein that is expressed to be truncated or non-functional. A few rare cordons spread around the protein are OK in close cases, but if there are a number of rare codons in a row, then it can have a big effect. The third sequence related step to optimize the protein production is to make sure there is not a high GC concentration at the 5 end of GFP protein. This could potentially cause problems with the mRNAs stableness, and could prevent it from being translated correctly, which would also lead to truncated or non-functional proteins. If your sequence is GC heavy at this end, you can try to make a few silent mutations to break up long stretches to try and help stability.After the plasmid is sequence verified, the next factor is the bacterial host that is used. There are almost as may hosts as there are expression vectors, with certain hosts excelling in producing different types of proteins. For exa mple if you have a toxic protein, or a protein that could potentially cause genomic rearrangement, you will want a vector that gives you very tight control over the induction of your protein. There can be leaky expression (i.e. expression of your protein without the addition of your inducer) that can potentially have adverse effects on the cells growth or even prevent your cells from over-expressing your protein in the first place. If youre utilizing the T7 polymerase system, then look for a host containing the pLysS plasmid, as this will code for T7 lysozyme, which will suppress the T7 polymerase and can greatly reduce the level of background expression. If as stated before you have a protein that contains a banging number of rare codons, then look for a host with the genes for the necessary tRNAs already present, which should allow your protein to express correctly. Sometimes simply changing hosts can have a dramatic effect on the amount of protein produced and the stability of t he protein that is made, so if one host isnt giving you the results you need, then feel free to switch your host up.The third and final factor to consider when expressing a protein is growth conditions. When first starting out with the protein induction it is very important to run an expression time course, where you take a fresh colony from a streaked plate, and grow the culture to stationary phase. Next, dilute the overnight culture 1/100 and grow to mid log phase, then add the inducer and induce your protein for a number of hours, taking 1mL samples every hour or so. Once these samples are lysed, you can run an SDS-PAGE colloidal gel to determine your protein production levels. You might get great induction the first time, or you may have to tweak your conditions in order to get really good expression levels. Other factors that may need to be controlled for are the bacterial growth rate (determined by taking OD measurements during the induction process), and the temperature durin g induction. Some constructs will express perfectly fine at 37C, while others need to be bumped down to 30C to induce correctly. The concentration of the inducer too will have an effect, as many inducers (IPTG) can be toxic to the cells that they are inducing. Using new made inducer is good step to making sure you always have consistent results. Only through experimentation can you determine what will be best for your construct, and give you the most robust expression levels.Transformation efficiencyTransformation efficiency is a measure of the ability of cells to be transformed. Transformation efficiency is expressed as the number of transforms per mcg of pUC19.By using the following formulaColonies on plate / ng of control DNA X 1000ng/g = (transformation (T) / g plasmid DNA)100 L equivalent to 0.01 ng DNA in the plate.Growth curveIn general growth curve shows the S- shaped when plotted in log linear format as shown in figure 4, that uncaring into four phasesLag phase the init ial period when no growth in cell number is seen.Log phase when cells are outgrowth at the maximumm rate.Stationary phase growth decreases as a nutrient are depleted and waste products accumulate.Death phase this is the result of drawn-out starvation and toxicity.ConclusionThe main goal for the experiment was to express the protein of interest (GFP). However, factors influencing transformation efficiency include technique errors, the temperature and length of the incubation period, the growth stage of the cells, and using the correct mass of plasmid DNA. Escherichia coli is one of the most important hosts in modern day recombinant protein production. Throughout academia and manufacture its uses are widespread and with sequence data available for some of the most common strains of the bacteria it has been a favourite organism for many metabolic engineering and metabolic modelling projects in the past (Berry, 1996 Koffas et al., 1999).

The Advantages And Disadvantages Of Operating Systems Information Technology Essay

The Advantages And Disadvantages Of Operating Systems Information Technology Essay aim of battle is one of the characteristic of king protea and this level of involvement is employ to measure the degree of moveion of the assailant with the operate corpse. Commonly a low-involvement king protea leave alone provide certain fake operate Spi01 and these aids washstand only be implemented if somebody listen on a specific port. It is non likely to catch complex protocols communication with such a simple resolving power. An SMTP handshake will not mete out much useful information because an answering service is not listening.On a low-involvement king protea there is no concrete operating establishment on which the assailant bear operate and this will minimize the attempt as there will be no complexity of the operating arranging. This is a disadvantage as it is not possible to watch an aggressor interacting with the operating agreement. Role of this low-involvement king protea is very passive as it is resembling a one-way connection in which we offer only listen, just now we do not ask questions ourselves. recruit 5.1 Low-involvement king protea A low-involvement honeypot doesreduce fortune to a minimum by minimizing interaction with the firingerBoth low-level involvement honeypot and passive IDS argon like as both the organisations will not alter some(prenominal) occupation or interact with the attacker or the art flow. If the incoming packets partake their patterns they atomic number 18 utilize to create logs and nimbles.5.1.2 Mid-involvement HoneypotA mid-involvement honeypot provides more than(prenominal) interaction, but doesnt provide a real operating system. The fake daemons earn deeper knowledge about the particular services they provide and ar complicated. And assay will likewise increase. As the complexity of the honeypot increases the probability of the attacker to find the pledge hole or vulnerability is gett ing bigger. As there are no boundaries for the security and logging mechanisms built for this strain of events, a compromise of this system is still unlikely and certainly no goal.In the higher level of interaction, there is a possibility of more complex attacks and send packing be logged and analyzed. In general, the attacker has more possibilities to interact and probe the system and gets a better illusion of a real operating system.It is complex and time devour for maturation a mid-involvement honeypot and special care has to be taken for checking the security as from each one developed fake daemons must be as secure as possible. The developed versions must be very secure than their real counterparts, because this is the main(prenominal) reason to substitute these with fake variants. As each protocol and service must be understood in detail the knowledge for developing such a system must be very high.Figure 5.2 Mid-involvement honeypot A mid-involvement honeypot doesintera ct with the user in a minimal way5.1.3 High-involvement HoneypotA high-involvement honeypot consists of an operating system and this leads to a much higher risk as the complexity increases and also at the same time, the possibility for gathering information, the possible attacks and the attractiveness increases a rotary. One of the goal of the hacker is to gain root and to have the rise to power to a shell,connected to the Internet 24/7. Such an environment is offered by high-involvement honeypot. As soon as a hacker gains the access, his real work and the provoke part begins.To get this level of freedom the attacker has to compromise the system, and accordingly he will have the root rights on the system and can do everything at any instance on the compromised system. According to se, this system is not secure and even the whole shape cannot be considered as secure. This doesnot matter if he is in a sandbox, in a throw out or a VMW box as there can be ways to get out of these software boundaries.Figure 5.3 High-involvement honeypot A high-involvement honeypot has greatrisk as the attacker can compromise the system and use exclusively its resources.This honeypot is very time consuming and the system should be kept under observation or so of the time. If a honeypot is not under control and past it is not of much help and it can become a danger or security hole itself. As the honeypot can be used by the blackhats as if its a real compromised system,it is very important to limit a honeypots access to the local intranet. As the danger once a system is fully compromised can b e bring down, limiting outward employment is also an important point to consider.If a full operating system is provided to the attacker, he can upload and install untried files. As all actions can be recorded and analyzed, here a high-involvement honeypot can show its strength. One of the main goals of a high-involvement honeypot is to gather new information about the blackhat com munity and legitimates the higher risk.5.1.4 OverviewThere are advantages and disadvantages of each level of involvement.Table 5.1 Overview of each level ofInvolvement advantages and disadvantagesThe danger is reduced as much as possible by choosing the lowest as possible risk honeypot. While choosing a honeypot and its level of involvement the postulate maintenance time must be considered. Honeynets are other possible honeypot architecture.5.2 HONEYNETS NETWORK TOPOLOGIESHere the discussion is regarding the trainment of honeypots in a engagement and a special, more complex version of honeypots which can also be called as honeynet.5.2.1 Honeypot LocationA honeypot does not require a specific environment to live as it is a standard server with no special needs. A honeypot can be pose anywhere a server is placed but some places are better for some approaches than others.Based on the service required, honeypot can be used on the profit as easy as on the intranet. If the find on eselfion of some severity guys in a private intercommunicate had wished it would be better to place a honeypot on the intranet which can be useful. Since this system can easily be compromised without immediate knowledge, it is important to set the inbred poking for a honeypot as low as possible.A honeypot can be placed at two locations with Internet as the main concern In front of the firewall Behind the firewall (intranet)There are advantages and disadvantages of each approach. Because of the fact that placing a server in front of a firewall is simply not possible or not wished it is sometimes even impossible to choose freely.5.2.1.1 In Front of the FirewallThe risk for the internal internet does not increase by placing the honeypot in front of a firewall. Behind the firewall the danger of having a compromisedsystem is eliminated. This can be a problem if no additional firewalls are being used to epidermis some resources or if the IP is used for the purpose of authentication.A lot of unwished traffic like portscans or attack patterns will be attracted and generated by a honeypot and by placing a honeypot impertinent the firewall such events does not get logged by the firewall and an internal IDS system will not generate alerts. Or else, lot of alerts will be generated on the firewall or IDS.The biggest advantage of the firewall or IDS and any other resources, is that they need not be adjusted as the honeypot is outside the firewall and viewed as any other machine on the external network. Therefore if a honeypot is running it will not increase the risk of the internal network nor does it introduce new risks.If the honeypot is placed in front of the firewall then internal attackers cannot be located or trapped that easy, particularly if the firewall limits outboundtraffic and therefore limits the traffic to the honeypot.5.2.1.2 Behind the FirewallNew security risks to the internal network can be introduced by a honeypot cigarette the firewall, in particu lar if the internal network is not secured against thehoneypot with additional firewalls.A honeypot provides a lot of services most of them are not used as exported services to the Internet and are blocked by the firewall. It is inevitable to adjust the firewall rules and also the IDS signatures by placing the honeypot behind the firewall, as it can be wished not to generate an alert every time the honeypot is attacked or scanned.If internal honeypot is compromised by an external attacker the biggest problem will arise. He can then access the internal network through the honeypot. This traffic will not be stopped by the firewall as it is regarded as traffic to the honeypot only, which in turn is granted. It is mandatory for securing an internal honeypot, in particular if it is a high-involvement honeypot.The main reason for placing a honeypot behind a firewall is to detect internal attackers. By making use of the internal honeypot it is possible to detect a mis-configured firewall. It is not possible to place a honeypot in front of a firewall sometimes because no external IPs are available nor access to the network in front of the firewall is possible.5.2.2 HoneynetsA honeypot is a single machine which is used for running multiple practical(prenominal) operating systems. As the traffic goes directly on to the network it is not possible to control the outbound traffic. Preliminary firewall can be used to limit outbound traffic. Such a complex environment is honeynet. seven-fold honeypots and a firewall (or firewalled- straddle) to limit and log network traffic is contained by a typical honeynet. To watch the potential attacks and decode and store network traffic on the preliminary system an IDS can be used.Figure 5.5 dissimilar types of honeypot topologies Simple honeypot, honeynet and avirtual honeynetIf a firewall is placed in front of a honeypot (or multiple honeypots) the risk based on the honeypot can be reduced. Both the inbound as well as the outbound connections can be controlled it is possible to control the network flow. As logging of network traffic can be through with(p) on one centralized location for all honeypots it is very easy. The info that is captured need not be placed on the honeypot itself and the risk of this data detection by an attacker is eliminated.More hardware is required by introducing new machines to the honeypot itself. Only one machine solution is thinkable. It is possible to set up multiple virtual systems on a physical machine by making use of Virtualization software. By this attempt, a firewall can also be placed on the same machine as all virtual honeypots but the security of this solution is not that good compared to different physical machines. If the honeynet is a virtual environment, the attacker could be able to break out of the virtual machine and the system could be compromised. As the attacker cannot see the bridge it is safe to place the bridge with firewall capabilities in front of a ho neypot. As the bridge has no IP it is not possible to attack the bridge and therefore no attack point exists.There is complexity of the environment raised when additional hardware is introduced. In order to provide best security networking and associated tools must be understood.

Waste Management In The Construction Industry Construction Essay

Waste Management In The crook Industry social system EssayManagement for the consentaneous permissive swash is one of the important move of Environmental Engineering or Management in Construction Industry. As the structure industry worldwide is a conspicuous consumer of raw corporals of galore(postnominal) types and it does not have an enviable record in its attitude to managing the risky, it produced some(prenominal) during look and as a result of the destruction of creates. Although there ar some demolition materials were recycled, such(prenominal) as doors and windows, or bricks, these components atomic number 18 express that most of the verbalism negate has long been indiscriminately loaded into containers and interpreted to landfill with no attempt to salvage anything that might be of do. However, landfill is not a suitable long-term to handle the solid edifice drift, as depleting the worlds inherent resources, our pollution may be irreparably damaging its natural eco-system.The hold of solid yearn management is underpinned by a hierarchy of waste control measures (Peng et al., 1997). This hierarchy, shown in Figure , means control measures be pet to recycling rather than disposal the waste by incineration or land-filling. recycle of solid waste means re- apply the waste after that waste is re- surgical processed. Therefore, the measuring stick of solid waste of construction industry bum be decrease by recycling.To recycle the solid waste, the building materials and components is needed to be re-examined their animation cycle by life cycle assessment, that is the framework within which a material or product is examined finished its entire from raw material extraction, manufacture, construction, use, sustentation and disposal. As a result, the solid wastes were used to be handled in one direction that is using for landfill, but now some of the solid wastes heap be used for another construction works, so that the waste place be reduced. Nevertheless, in order to achieve the goal, totally participants in the construction process are needed to make the integrated effort. If mortal is going to demolition a building and want to recycle the construction waste, there should be another construction project that is going to use the recycled material. Effective waste management therefore requires a collaborative effort through the construction supply chain in which the client, inventioner, materials manufacturers and suppliers, construction and demolition contractors and waste disposal contractors all have an important role to play. mod designAs it is mentioned above that designer is one of the parties that need to help oneself a construction project become more environments. To reduce construction waste, innovations in the design of buildings can provide a greater tractability and permit refurbishment and fit-out as when needed to do so. Buildings can withal be designed to facilitate de-construction. As it is the preferred method of demolition, the materials used can choose as some re-use materials.Also, innovative design can have a significant impact on material wastage. For causa, the cap of the Sydney Olympic Main Arana Grandstand was designed in such a way that it requited 22% less steel.Material SupplyTo minimize promoting waste during construction, suppliers of the material in like manner play an important role, as they can prune production by standardizing components and reducing incase. Also, they can participate with recycled content in the manufacture of products. Such as BHP, a leading Australian excavation and resources society, manufactures 100% recycled steel products in its Sydney mini-mill which uses up to 300 000 tonnes of scrap steel each year. A better waste management can also be promoted by innovative supply arrangements. From some adopting practices like taking-back unnecessary or recyclable materials (Environment Australia, 2000), it is reported that some producers of construction materials now are starting to take responsibility for the whole life cycle of their products. An example is showing that Interface Australia Pty Ltd has refocused its supply arrangements to achieve less wasteful practices. The company of supplying modular carpet tiles has adopted a system through which customers lease rather than buy the carpet. Customers pay a monthly fee, which includes warranty, design, manufacture, installation, maintenance and final reclamation of the product, for the value and use of the carpet supplied.ConstructionConstruction Contractor can also reduce solid waste during construction, as their works may include waste management plans, severe identify management and organization. Accurate estimating and ordering with nil allowance for waste reduces the flashiness of waste, the cost of materials and the cost of waste disposal. On the construction site, it should be intelligibly separated and labeled the wastes which can recy cle and cannot recycle. It is reported that through its waste minimization measures, Fletcher Construction reduced waste disposal costs by 55% and increased profits compared to another project, of very similar design and construction, in which waste minimization measures were not implemented (McDonald, 1996).In the construction industry, in the large proportion of the work is sub-contracted, ensuring supplier and sub-contractor compliance with waste management plans is crucial. On the Stadium Australia project, 7000 fire doors were delivered direct from the factory without package and sub-contracts required compliance with project waste management plans and specified that packaging materials had to be returned to the original suppliers (Commonwealth Department of the Environment and Heritage, 2000).DemolitionThe demolition process generates the greatest volumes of waste in Construction Industry, so a in effect(p) planning can reduce waste very effectively. Deconstruction of the co mponents of a building should be done very carefully and taken by piece by piece since these materials can salvage and re-use. Salvage and re-use of building components requires a network through which materials and purchasers can be matched. There are reported to be very successful material/waste exchanges operating(a) in the United States, e.g., Mason Brothers in Vermont, who use a barter system to trade used items from buildings and are reportedly making a profit (Witten, 1992). Mason Brothers do not specialize in historic treasures but also supply low-end materials, such as US$10 doors and chipped bathtubs. Another successful broker of salvaged items is Urban Ore in Berkeley, California. The company operates a 2.2 acre (0.89 ha) warehouse, employs 16 people and reported expected gross sales of US$1,000,000 in 1992 (Hazen and Sawyer PC, 1993). At present, such exchanges are in their early childhood in Australia although some government agencies have created exchange web sites. However, in some situation that salvage and re-use are not possible, due for authority to the use of composite materials, demolition waste can still be recycled. For example, during the demolition of the Balmain Power Station in Sydney, around 18 000 tonnes of concrete and brick and 2000 tonnes of steel were recycled (Commonwealth Department of the Environment and Heritage, 2000).Waste disposalIn the waste management process, additional to the provision and emptying of skips, waste disposal contractors can also assist in through offering services. For a good practice illustrate, technological barriers to the management of solid construction waste are being overcome.Construction waste has a high potential for retrieval and re-use (Cosper et al., 1993 Schlauder and Brickner, 1993) and recycling options for solid construction waste are also increase (Merry, 1990 von Stein and Savage, 1994).However, the extent to which recycling, re-use and reduction of solid construction waste can be achieved depends on motivational and attitudinal influences on the behaviour of participants at all levels of the construction process, from site operatives, to clients, managers, foremen, suppliers and designers pressures to complete work quickly, for example, might lead a tradesman to cut components from new material rather than spending clock locating suitable previously cut pieces (Federle, 1993).In the construction industry, Skoyles and Skoyles (I 987) were the number 1 to recognize that the problem of material wastage was more dependent upon the attitudes and behavioural tendencies of individuals winding in the construction process than upon the technical processes it employed. Since then other studies by Heino (1994), Soibelman et al. (1994), Guthrie and Mallett (1995), Lingard et al. (2000) and Teo (2000) have reinforced this view. Due to time and cost constraints, poor leaders and a lack of experience in dealing with environmental issues, their findings apprise that neg ative attitudes towards waste management prevail on construction projects. to the construction industry of making itself more sustainable, it would seem that the challenge is more unplumbed than merely creating policies and systems to monitor work-practices. Rather, the problem is cultural and lies in changing peoples attitudes to issues such as waste management.