178,693 research outputs found

    Pesticide sorption by allophanic and non-allophanic soils of New Zealand

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    S. Baskaran, N. S. Bolan, A. Rahman, R. W. Tillma

    Introduction:The Problem of Integrating ICT within National Systems of Innovation: Concepts, Taxonomies and Strategies

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    &quot;Running across the informative chapters on the diverse experience of several important countries with ICT is a unifying theory of what it takes for succesful economic development in today&#39;s globalized economy. While drawing on the high-tech products offered by advanced industrial nations, and selectively taking in foreign investments, developing nations need to build their own capabilities for innovation. This is a difficult balancing act, and one that requires significant indigenous investments in human capital and in R and D, and sophistication and strenght on the part of the relevant government officials. The case studies show different countries wrestling with the problem, some doing better and some worse. This is a fascinating and important book.&quot;Richard R. Nelson, George Blumenthal, Professor Emeritus of International and Public Affairs, Business, and Law, Columbia University, New York, USA.&quot;Running across the informative chapters on the diverse experience of several important countries with ICT is a unifying theory of what it takes for succesful economic development in today&#39;s globalized economy. While drawing on the high-tech products offered by advanced industrial nations, and selectively taking in foreign investments, developing nations need to build their own capabilities for innovation. This is a difficult balancing act, and one that requires significant indigenous investments in human capital and in R and D, and sophistication and strenght on the part of the relevant government officials. The case studies show different countries wrestling with the problem, some doing better and some worse. This is a fascinating and important book.&quot;Richard R. Nelson, George Blumenthal, Professor Emeritus of International and Public Affairs, Business, and Law, Columbia University, New York, USA.</p

    Contrasting behaviour of chlorpyrifos and its primary metabolite, TCP (3,5,6-trichloro-2-pyridinol), with depth in soil profiles

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    Regulatory agencies and natural resource managers are increasingly recognising the role of pesticide metabolites in the overall risk to non-target organisms. However, the environment fate data on pesticide metabolites are relatively meagre. We report the sorption and degradation behaviour of chlorpyrifos and its primary metabolite, TCP (3,5,6-trichloro-2-pyridinol), with depth in 2 Australian soil profiles. Sorption isotherms were determined by batch equilibrium method and the degradation was studied under controlled incubation conditions. Sorption of chlorpyrifos (Kd = 40.3–209.6 L/kg) was found to be about 100 times higher than that of TCP (Kd =0.45–2.86 L/kg) in both the soil profiles. A significant correlation ( r 2&amp;nbsp;=&amp;nbsp;0.88**) was found between sorption of chlorpyrifos and the soil organic carbon content, but not in the case of TCP. However, in the case of TCP a significant inverse relationship was observed with pH ( r 2&amp;nbsp;=&amp;nbsp;0.81**). The rate of degradation of chlorpyrifos increased with depth in the soil profile, whereas the converse was true for TCP. The time for 50% loss of chlorpyrifos (DT50) was found to be 23–28 days in the surface soils (acidic pH) and only 7–16 days in the subsurface (alkaline pH). The DT50 values for TCP in the surface soils ranged from 42 to 49 days and in subsurface soils from 64 to 117 days. The contrasting behaviour of chlorpyrifos and TCP in soil profiles is clearly evident from the study. Due to its lower sorption and longer persistence, TCP has a much greater leaching potential than chlorpyrifos.S. Baskaran, R. S. Kookana and R. Naid

    Innovation System for ICT:The Case of India

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    &quot;Running across the informative chapters on the diverse experience of several important countries with ICT is a unifying theory of what it takes for succesful economic development in today&#39;s globalized economy. While drawing on the high-tech products offered by advanced industrial nations, and selectively taking in foreign investments, developing nations need to build their own capabilities for innovation. This is a difficult balancing act, and one that requires significant indigenous investments in human capital and in R and D, and sophistication and strenght on the part of the relevant government officials. The case studies show different countries wrestling with the problem, some doing better and some worse. This is a fascinating and important book.&quot;Richard R. Nelson, George Blumenthal, Professor Emeritus of International and Public Affairs, Business, and Law, Columbia University, New York, USA.&quot;Running across the informative chapters on the diverse experience of several important countries with ICT is a unifying theory of what it takes for succesful economic development in today&#39;s globalized economy. While drawing on the high-tech products offered by advanced industrial nations, and selectively taking in foreign investments, developing nations need to build their own capabilities for innovation. This is a difficult balancing act, and one that requires significant indigenous investments in human capital and in R and D, and sophistication and strenght on the part of the relevant government officials. The case studies show different countries wrestling with the problem, some doing better and some worse. This is a fascinating and important book.&quot;Richard R. Nelson, George Blumenthal, Professor Emeritus of International and Public Affairs, Business, and Law, Columbia University, New York, USA.</p

    Appropriate Similarity Measures for Author Cocitation Analysis

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    We provide a number of new insights into the methodological discussion about author cocitation analysis. We first argue that the use of the Pearson correlation for measuring the similarity between authors’ cocitation profiles is not very satisfactory. We then discuss what kind of similarity measures may be used as an alternative to the Pearson correlation. We consider three similarity measures in particular. One is the well-known cosine. The other two similarity measures have not been used before in the bibliometric literature. Finally, we show by means of an example that our findings have a high practical relevance.information science;Pearson correlation;cosine;similarity measure;author cocitation analysis

    "Closing the R&D Gap, Evaluating the Sources of R&D Spending"

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    Both spending and tax policies have been implemented in the United States with the goal of stimulating private sector research and development (R&D). Karier questions whether current R&D policy, especially the research and experimentation tax credit, can contribute to closing the gap between nondefense expenditures on R&D in the United States and such expenditures in other countries, such as Japan and Germany. He also explores possible changes to our current R&D policy to make it more effective.

    Supplementary Material, Supplemental_by_fayaz,_et_al. – Design and Implementation of a Discrete-Time Proportional Integral (PI) Controller for the Temperature Control of a Heating Pad

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    Supplementary Material, Supplemental_by_fayaz,_et_al. for Design and Implementation of a Discrete-Time Proportional Integral (PI) Controller for the Temperature Control of a Heating Pad by Pathan Fayaz Khan, S. Sengottuvel, Rajesh Patel, K. Gireesan, R. Baskaran and Awadhesh Mani in SLAS Technology</p

    Going Beyond Counting First Authors in Author Co-citation Analysis

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    The present study examines one of the fundamental aspects of author co-citation analysis (ACA) - the way co-citation counts are defined. Co-citation counting provides the data on which all subsequent statistical analyses and mappings are based, and we compare ACA results based on two different types of co-citation counting - the traditional type that only counts the first one among a cited work's authors on the one hand and a non-traditional type that takes into account the first 5 authors of a cited work on the other hand. Results indicate that the picture produced through this non-traditional author co-citation counting contains more coherent author groups and is therefore considerably clearer. However, this picture represents fewer specialties in the research field being studied than that produced through the traditional first-author co-citation counting when the same number of top-ranked authors is selected and analyzed. Reasons for these effects are discussed
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