世界経済・社会統計 = World development indicators

Cause, conseguenze e strategie di mitigazione Proponiamo il primo di una serie di articoli in cui affronteremo l’attuale problema dei mutamenti climatici. Presentiamo il documento redatto, votato e pubblicato dall’Ipcc - Comitato intergovernativo sui cambiamenti climatici - che illustra la sintesi delle ricerche svolte su questo tema rilevante.

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Climate Change 2007: The Physical Science Basis.

Lithium metal is one of the most attractive anode materials for electrochemical energy storage. However, the growth of Li dendrites during electrochemical deposition, which leads to a low Coulombic efficiency and safety concerns, has long hindered the application of rechargeable Li-metal batteries. Here we show that a 3D current collector with a submicron skeleton and high electroactive surface area can significantly improve the electrochemical deposition behaviour of Li. Li anode is accommodated in the 3D structure without uncontrollable Li dendrites. With the growth of Li dendrites being effectively suppressed, the Li anode in the 3D current collector can run for 600 h without short circuit and exhibits low voltage hysteresis. The exceptional electrochemical performance of the Li-metal anode in the 3D current collector highlights the importance of rational design of current collectors and reveals a new avenue for developing Li anodes with a long lifespan.

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Accommodating lithium into 3D current collectors with a submicron skeleton towards long-life lithium metal anodes.

On behalf of Mr. Koichiro Matsuura, Director-General of UNESCO, it is my great pleasure to welcome you all to this international scientific conference. Drylands are often considered fragile ecosystems, yet they have a remarkable resilience to stress. They are home to unique and well-adapted plant and animal species that we need to conserve. Some of the world’s greatest cultures and belief systems have originated in drylands. On the other hand, desertification and land degradation in drylands often result in poverty and cause environmental refugees to abandon their homes. These problems can only be addressed in a holistic manner, based on sound scientific research and findings. Solutions to the problems of dryland degradation need to be communicated as widely as possible through education at all levels. These are many reasons why UNESCO – within its mandate of science, education, culture and communication – took the intiative to organize this conference. And we are glad that so many partners have responded to our call. UNESCO considers this conference as its main contribution to the observance of the International Year of Deserts and Desertification in 2006. We have deliberately chosen the title ‘The Future of Drylands’ as we feel it is time to redefine our priorities for science, education and governance in the drylands based on 50 years of scientific research in arid and semi-arid zones. In fact UNESCO has one of the longest traditions, within the UN system, of addressing dryland problems from an interdisciplinary, scientific point of view. In 1955, the ‘International Arid Land Meetings’ were held in Socorro, New Mexico (USA). They were organized by the American Association for the Advancement of Science (AAAS), sponsored by UNESCO and supported by the Rockefeller Foundation. One important output of the International Arid Land Meetings was a book entitled The Future of Drylands, edited by Gilbert F. White and published in

United Nations Educational, Scientific and Cultural Organization (UNESCO)

Statistical Databases

This paper surveys five decades of empirical research on the macroeconomic impact of aid, looking mainly at studies examining the link between aid and growth. It argues that studies dating until the late 1990s produced either contradictory or inconclusive results. Aid either worked, or it didn't, according to this research. The paper then highlights a major shift in the literature that coincided with the release of the World Bank's Assessing Aid: What Works, What Doesn't and Why. Practically, all research published since that report agrees with its general finding that aid works to the extent that in its absence, growth would be lower. One controversy may therefore have been settled. Yet, as shown in this paper, the report has set-off an intense debate over the context in which aid works. That debate centres on whether the effectiveness of these inflows depends on the policy regime of recipient countries. Some possible avenues through which the heat might be taken out of this debate are considered. Copyright © 2006 John Wiley & Sons, Ltd.

Controversies over the impact of development aid: it works; it doesn't; it can, but that depends …

The the millennium development goals and beyond that we provide for you will be ultimate to give preference. This reading book is your chosen book to accompany you when in your free time, in your lonely. This kind of book can help you to heal the lonely and get or add the inspirations to be more inoperative. Yeah, book as the widow of the world can be very inspiring manners. As here, this book is also created by an inspiring author that can make influences of you to do more.

The Millennium Development Goals and Beyond

This article investigates the impact of foreign aid on economic growth in Papua New Guinea (PNG) using time-series data for the period 1965 to 1999. Following the most recent literature, the article examines whether aid effectiveness is conditional on levels of economic policy and governance. An empirical model is estimated using the Autoregressive Distributed Lag (ARDL) approach to cointegration proposed by Pesaran and Shin [1995]. Results provide little evidence that aid and its various components have contributed to economic growth in PNG. There is some evidence that aid is more effective during periods when the country has undertaken a World Bank Structural Adjustment Program (SAP). An alternative interpretation is that a SAP may be more effective at spurring growth when supported by foreign aid.

The Impact of Foreign Aid on Economic Growth in Papua New Guinea

This article empirically analyses the link between innovation and performance using a sample of large Australian firms, with a specific aim of developing benchmarking tools. Innovation is measured by firms' investment in R&D and applications for patents, trademarks and designs. An innovation index is constructed to provide one method of benchmarking. The index incorporates a firm's innovative activities into a single figure after accounting for firm size. The index provides a ranking of the most innovative firms in Australia. A second method of benchmarking uses a stochastic production frontier. This type of analysis identifies the firms which are located closest to a ‘best practice innovation frontier’.

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Innovation and Performance: Benchmarking Australian Firms

This paper examines the impact of remittances on economic growth in Small Island Developing States (SIDS). Results from variants of an empirical model suggest that while, on average, there is at best no association between remittances and growth in developing countries, there is a positive association between these variables in SIDS. This finding holds for SIDS in sub-Saharan Africa and the Pacific but not for those in Latin America and the Caribbean. Relationships between remittances, economic volatility, and household labour supply are offered as reasons for these findings.

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Simon Feeny

Papers

Controversies over the impact of development aid: it works; it doesn't; it can, but that depends …

The Millennium Development Goals and Beyond

The Impact of Foreign Aid on Economic Growth in Papua New Guinea

Innovation and Performance: Benchmarking Australian Firms

Remittances and Economic Growth: Larger Impacts in Smaller Countries?