... substituents enhance planarity of the aniline framework, thereby shortening d(C- N). The accompanying loss of electron density from the amino nitrogen atom decreases the pKa of the amino group. Conversely, ... indicator to investigate the change of properties yield rather good correlations for these properties except for d(C-N), Q N of meta – derivatives. The correlation of pKa with σ is best fit. ... HyperChem software 7.52 to study the influence of substituents on some properties of compounds. II. Methods Hammett constants for the substituents were taken from [8]. The pKa values for the aniline...
Ngày tải lên: 23/07/2014, 13:21
... participated in the design of the study and the analytical plan. DEF participated in the design of the study, the analytical plan, the interpretation of the results, and assisted in drafting the manuscript. ... utilization costing data of US-SCAP. XP performed the expanded statistical analyses, participated in the design of the study, the analytical plan, and the interpretation of the results. RRC assisted with the interpretation ... participated in the design of the study, the analytical plan, the interpretation of the results, and assisted in drafting the manuscript. They were also involved in preparing the resource utilization costing...
Ngày tải lên: 11/08/2014, 17:20
The Future of Work in the Age of Social Network
... live. Competition for jobs is no longer limited The future of work is… FLAT The world is now flat. Ten years ago there were no social networks. The world is now flat. organization Ten years before that ... contractors from across the planet. The people out of work today will soon find jobs again. Consider ReCAPTCHA™ The more productively you work, the more money you’ll make. The future of work is… TRANSPARENT ... flat. organization Ten years before that we didn't have the Web. Business wasted millions of dollars every year paying for employee downtime. In the future, location will not matter. In 2004 JetBlue...
Ngày tải lên: 02/07/2014, 21:22
the johns hopkins university press the medicalization of society on the transformation of human conditions into treatable disorders apr 2007
... and move to the next one. For those who stay the course there is the promise of a greater understanding of the contours of the medicalization process. The earliest critiques argued that the medicalization ... by the distribution of these drugs for an increasing range of male troubles. Both of these trends facilitate medicalization. First, the mode of delivery for testosterone has evolved over the ... contributing to the further medicalization of the aging male body. Historical Context for the Emergence of Testosterone Therapy The discovery and isolation of testosterone undoubtedly contributed to the...
Ngày tải lên: 11/06/2014, 12:48
The Semantic Web: A Guide to the Future of XML, Web Services, and Knowledge Management doc
... the inventor of the Web. What Is the Semantic Web? Tim Berners-Lee has a two-part vision for the future of the Web. The first part is to make the Web a more collaborative medium. The second part ... that vision. Explains the general framework for achieving the Semantic Web, why we need the Semantic Web, and how the key technologies in the rest of the book fit into the Semantic Web. This chapter ... the inventor of Ethernet, stated that the usefulness of a network equals the square of the number of users. Intuitively, the value of a network rises exponentially by the number of computers...
Ngày tải lên: 27/06/2014, 08:20
The Semantic Web:A Guide to the Future of XML, Web Services, and Knowledge Management phần 2 potx
... understanding the practical use of a Semantic Web that lies beneath the covers of our tradi- tional Web. In the previous chapter, we discussed the “what” of the Semantic Web. This chapter examines the ... the inventor of Ethernet, stated that the usefulness of a network equals the square of the number of users. Intuitively, the value of a network rises exponentially by the number of computers ... code Chapter 3 30 Web before understanding the network effect. Tim Berners-Lee’s first example of the utility of the Web was to put a Web server on a mainframe and have the key information the people...
Ngày tải lên: 14/08/2014, 12:20
The Semantic Web:A Guide to the Future of XML, Web Services, and Knowledge Management phần 3 pdf
... involved. The next sections discuss the business case for Web services, some of the technical details, and a vision for Web services in the future. Why Use Web Services? You’ve heard the hype. ... over the next 10 years with the advent of the Semantic Web. Lastly, we turned a critical eye on the current state of XML meta data and why it is not enough to fulfill the goals of the Semantic Web. ... whatever they have agreed on has a big future. In the Web ser- vices arena, this is exactly what has happened. The development of the open standards for Web services has been an open-industry effort,...
Ngày tải lên: 14/08/2014, 12:20
The Semantic Web:A Guide to the Future of XML, Web Services, and Knowledge Management phần 4 pdf
Ngày tải lên: 14/08/2014, 12:20
The Semantic Web:A Guide to the Future of XML, Web Services, and Knowledge Management phần 5 ppsx
Ngày tải lên: 14/08/2014, 12:20
The Semantic Web:A Guide to the Future of XML, Web Services, and Knowledge Management phần 6 ppsx
Ngày tải lên: 14/08/2014, 12:20
The Semantic Web:A Guide to the Future of XML, Web Services, and Knowledge Management phần 7 ppt
Ngày tải lên: 14/08/2014, 12:20
The Semantic Web:A Guide to the Future of XML, Web Services, and Knowledge Management phần 8 pdf
Ngày tải lên: 14/08/2014, 12:20
The Semantic Web:A Guide to the Future of XML, Web Services, and Knowledge Management phần 9 pps
Ngày tải lên: 14/08/2014, 12:20
The Semantic Web:A Guide to the Future of XML, Web Services, and Knowledge Management phần 10 pot
Ngày tải lên: 14/08/2014, 12:20
The future of finance a new model for banking and investment
Ngày tải lên: 30/10/2014, 16:18
Tài liệu Organization-internal Transfer of Knowledge and the Role of Motivation: A Qualitative Case Study pptx
... workers), one of the two less successful did improve on par with the average of the other four, but the other unsuccessfu l plant actually experienced a reduction of productivity of 20%. (The six plants ... that internal distribution of information is triggered by the view on the relevance of the information, the power of the recipient, the level of workload and resources available. In comparison, this ... cf. Cohen and Levinthal, 1990). Furthermore, the value of the stocks of knowledge at the source is a poten- tial factor. The more valuable it is, the more likely it is that the recipient will attempt...
Ngày tải lên: 24/01/2014, 00:20
The challenge of obesity in the WHO European Region and the strategies for response pptx
... dynamics of the food system, particularly in the expanding markets of eastern Europe, needs further ex- ploration and the evolution of the food supply, particularly the price and availability of different ... northern Europe. In the past four decades, the supply of beer has increased within the EU, whereas that of wine has decreased. These data indicate that both factors conducive to the risk of ... message about the value of these foods and their impact on health – indeed, the threat of taxation may itself be a signal to commercial producers that they should review their product formulations....
Ngày tải lên: 16/03/2014, 14:20
Scientific report: "The awareness of people about the risks of plant protection drugs in vegetable production: case studies in Hanoi and Thai Binh" ppsx
... Applicators were also asked about whether they have felt uncomfortable after spraying during the last cropping season. There were 46% of them in Hanoi city and 65% of those in Thai Binh province ... at examining perception of pesticide risks and the current status of human and environmental risks caused by pesticides in the the selected distinct case studies of vegetable production in ... local people’s perception of pesticide risks and the current status of human and environmental risks caused by pesticides in the the selected distinct case studies of vegetable production in...
Ngày tải lên: 06/08/2014, 18:22