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This study evaluated this thermal reaction behavior of oxidized and pyrolyzed oils containing diverse clay minerals by means of differential scanning calorimetry (DSC) technology. The catalytic role of various clay minerals for thermal reaction processes involving oxidized oil and pyrolyzed oil during in situ combustion (ISC) was investigated in conjunction with kinetic calculation methods as well. The results demonstrated that all four clay minerals could shorten its temperature region of oxidized oil low-temperature oxidation (LTO) stage, with the peak temperature during the LTO stage of oxidized oil containing montmorillonite being dramatically reduced. The catalytic role of montmorillonite and illite on oxidized oil is more powerful in the high-temperature oxidation (HTO) stage with higher peak heat flow. The Lewis acid sites within clay minerals affect free radical reactions within the crude oil pyrolysis process, and in situ reforming performance of 400°C pyrolyzed oils containing clay minerals is less effective, along with low heat release in the LTO stage. Clay minerals can considerably minimize the activation energy during thermal reaction of oxidized oil, contributing to the coke generation and conversion in the fuel deposition (FD) stage and boosting the success rate of the ISC procedure. The catalytic role of clay minerals in the oxidation and pyrolysis reactions of crude oil contributes to the prediction of fuel deposition and the expansion of the combustion front during ISC under diverse types of rock conditions.

In this article, we introduce the 5 papers that have been selected for the publication of the special feature titled Social Entrepreneurship and Sustainability Transitions. Their common theme is the catalytic role that social entrepreneurs, an identity shared by people regardless of their professions or positions, play in China’s transitions toward sustainability. The stories told connect the rise of a rural tourism industry to the village entrepreneurs, place rural cadres in the central position on the long path of development in one of China’s best-known rags-to-riches regions, and highlight the role of business managers in signaling public trust or managing complex nonfinancial disclosures. The qualitative and quantitative studies reported shed light on how these socially embedded entrepreneurs broke the equilibria underlying the prolonged sustainability challenges, from extreme poverty to unhealthy growth to weak institutions, and laid pathways toward new ones that promised sustainability. By way of this special feature, we highlight a welcoming new trend in social entrepreneurship research that expand the scope of potential impact from directly affected stakeholders to cover the ripple effects of social entrepreneurial activities. We also echo the call for multilens, multisector, multiscalar and interdisciplinary research and for the adoption of the interpretive, critical, and pragmatic approaches that complement the popular positivist approach, which we believe will improve the relevance and impact of business and management research. We welcome more papers that establish solid links between social entrepreneurship and sustainability transitions.

SWNTs were synthesized by laser-vaporized CCVD (catalytic chemical vapor deposition). The diameter distributions and the abundance of SWNTs synthesized at different temperatures and using different catalysts were investigated by Raman spectroscopy. Further, this technique was compared with other synthesis techniques (laser-oven and conventional-alcohol CCVD), and C 60 was synthesized simultaneously as a byproduct only using the laser-oven technique. With increasing synthesis temperature, the diameter distribution shifted towards larger diameters, and the G/D ratio became larger as the synthesis temperature increased to 1000°C. Ni, Co, and Fe played a catalytic role, though Fe was less effective under our experimental conditions. The diameter distribution of SWNTs synthesized with the Fe catalyst was shifted to smaller values compared to those synthesized with Ni or Co catalysts.

Half of humanity about 3 billion people are still relying on solid fuels for cooking and heating. Of that, about 2.5 billion people depend on traditional biomass fuels (wood, charcoal, agricultural waste, and animal dung), while about 400 million people use coal as their primary cooking and heating fuel (UNDP and WHO 2009). The majority of the population relying on solid fuels lives in Sub-Saharan Africa and in South Asia. In some countries in Central America and in East Asia and the Pacific, the use of solid fuels is also significant. The inefficient and unsustainable production and use of these fuels result in a significant public health hazard, as well as negative environmental impacts that keep people in poverty. Strategies to improve energy access to the poor have focused mainly on electricity access. They have often neglected non electricity household energy access. It is, however, estimated that about 2.8 billion people will still depend on fuel wood for cooking and heating in 2030 in a business-as-usual modus operandi (IEA 2010). The need for urgent interventions at the household level to provide alternative energy services to help improve livelihoods is becoming more and more accepted. This report's main objective is to conduct a review of the World Bank's financed operations and selected interventions by other institutions on household energy access in an attempt to examine success and failure factors to inform the new generation of upcoming interventions. First, the report provides a brief literature review to lay out the multidimensional challenge of an overwhelming reliance on solid fuels for cooking and heating. Second, it highlights how the Bank and selected governments and organizations have been dealing with this challenge. Third, it presents lessons learned to inform upcoming interventions. And finally, it indicates an outlook on the way forward.

Software comes from India, hardware comes from China. Why is that? Why did China and India take such different paths to global dominance in new high-tech industries? Will their paths continue to diverge or converge? How can other countries learn from their successes – and failures – in reaching global scale in new industries? To answer these questions, this book presents the first rigorous comparison of the growth of the IT industries in China and India, based on interviews with over 300 companies. It explains the different growth paths of the software and hardware sectors in each country, providing insights into the factors behind the emergence of China and India as global economic powers. It provides a compelling case study of how differences in economic policies and the investment climate affect industrial growth. This book sheds new light on common debates on 'China versus India', on why India is the software capital of the world while China is a manufacturing powerhouse. It refutes common myths about the growth of these industries – for example, the role of Non-Resident Indians or the Y2K problem in the growth of the Indian software industry, the role of government intervention in industrial growth, and the relative size of China and India's software industries.

Over the past ten years, private-sector-led growth has revolutionized access to telecommunications. Every region of the developing world benefitted in terms of investment and rollout. This revolution would have been impossible without government reform and oversight. Advanced information and communication infrastructure (ICI) are increasingly important to doing business in a globalizing world. Governments, enterprises, civil society, workers, and poor populations in the developing countries need more affordable access. This report proposes strategies that governments can carry out to attract private investment and ensure the continued evolution and spread of information and communication infrastructure. These strategies encompass more than sector policy alone, for investment decisions are based on a wide range of factors including, for example, the roles played by financial sector development and the broader investment environment. The strategies also include potential public sector investments that can catalyze ICI rollout in subsectors where the private sector is not prepared to intervene on its own.

Bacterial asparaginases (amidohydrolases, EC 3.5.1.1) are important enzymes in cancer therapy, especially for Acute Lymphoblastic Leukemia. They are tetrameric enzymes able to catalyze the deamination of L-ASN and, to a variable extent, of L-GLN, on which leukemia cells are dependent for survival. In contrast to other known L-asparaginases, Helicobacter pylori CCUG 17874 type II enzyme (HpASNase) is cooperative and has a low affinity towards L-GLN. In this study, some critical amino acids forming the active site of HpASNase (T16, T95 and E289) have been tackled by rational engineering in the attempt to better define their role in catalysis and to achieve a deeper understanding of the peculiar cooperative behavior of this enzyme. Mutations T16E, T95D and T95H led to a complete loss of enzymatic activity. Mutation E289A dramatically reduced the catalytic activity of the enzyme, but increased its thermostability. Interestingly, E289 belongs to a loop that is very variable in L-asparaginases from the structure, sequence and length point of view, and which could be a main determinant of their different catalytic features.

This chapter contains sections titled: Introduction Catalytic Role of Metal Cofactors: Two‐Metal‐Ion Mechanism Other Metal Ions on IN Enzyme General Basis to Target Metal Ion Cofactors β‐Diketo Acids (DKAs): Important Class of IN Inhibitors as Example of Chelating Agents Structural Studies of DKA Pharmacophoric Motif Other Potential Metal Chelating Inhibitors Studies of Chelating Ability for Several Pharmacophore Fragments Two‐Metal Binding as Strategy for IN Inhibitor Design: Recent Study Two‐Metal Binding Model as Potential General Inhibition Mechanism From Ligands to Metal Complexes Conclusions and Perspectives Acknowledgments Abbreviations References

Economic zones have grown rapidly in the past 20 years. In 1986, the International Labor Organization's (ILO's) database reported 176 zones in 47 countries; by 2006, it reported 3,500 zones in 130 countries. This huge growth occurred despite many zones having failed to meet their objectives; however, many others are contributing significantly to growth in foreign direct investment (FDI), exports, and employment, as well as playing a catalytic role in integration into global trade and structural transformation, including industrialization and upgrading. This study aims to address some of these questions and deliver an analysis that is both data-driven and policy-focused. The objective of the study is to explore the experience of zone programs, with a particular focus on Sub-Saharan Africa, to understand the factors that contribute to static and dynamic outcomes. It aims to provide input to the question of whether and how zones can make a significant contribution to job creation, diversification, and sustainable growth in African and other low-income countries.

This chapter contains sections titled: Introduction Basic structures Post‐translational modification Catalytic mechanism Conclusions and future prospects Abbreviations References