This volume deals with binary nitrogen-hydrogen compounds having two, three, or more nitrogen atoms (with the exception of hydrazine) and with compounds composed of nitrogen, hydrogen, and noble gases. The important species containing two nitrogen atoms, N2H, N2H+, N2H2, and N2H3 are described in the first part of this volume. Next, chains and cycles consisting of three nitrogen atoms are covered. Among them hydrogen azide or hydrozoic acid, HN3, is the most extensively studied nitrogen-hydrogen compound described in this volume. With increasing number of nitrogen atoms, the thermochmical stability declines. There is, however, a considerable amount of information on molecules with up to nine linked nitrogen atoms. Several of these binary nitrogen-hydrogen compounds could only be isolated in the form of organic derivatives. In that case, data available for the organic derivatives were included if they were characteristic for the particular unsubstituted N-H parent compound.
This volume contains very carefully compiled material presenting bibliographic descriptions of approximately 3500 papers, with a computer-generated index on authors, subject headings, corporate addresses and journals. There are many on-line services available on fullerenes, but they serve mainly current-awareness functions; none of them is selectively complete and carefully indexed and none can replace a complete retrospective bibliography, which most researchers in the field would want to have on hand in their laboratories and offices.
Completely revised and updated for a second edition, this reference guide is an essential summary of the key concepts in physical chemistry that are likely to be encountered by undergraduate chemistry students. This book also serves as a useful reference for all who encounter physical chemical concepts in their professional activities or research. Written by a renowned textbook author and educator, this new edition of Concepts in Physical Chemistry is a convenient, easy-to-use, and authoritative reference; the chemical terms, ideas, and equations most frequently encountered in classroom or laboratory are clearly defined and explained.
This title takes an innovative molecular approach to the teaching of physical chemistry. The authors present the subject in a rigorous but accessible manner, allowing students to gain a thorough understanding of physical chemistry.
Calcium Entry Blockers (CEBs) are a new class of drugs which have been pushing back the frontiers of science and medicine for almost two decades. This report reviews some of the wealth of chemical, biological and clinical data describing the discovery and development of these compounds. The scientific importance, therapeutic benefit and marketing potential of these compounds have caused an explosion of scientific literature describing their effects in many preclinical and clinical settings. The definitional characteristics of these compounds suggest a certain predictability of their biological profile but their therapeutic usefulness varies widely dependent upon their physical properties, net hemodynamic effects, duration of action and incidence of side effects. CEBs appear uniquely suited to the treatment of the underlying complexity of cardiovascular disease. The CEBs of the future may live up to the expectations of pathophysiologically based therapeutics and allow the heart and blood vessels to outlive the cells which they support. The development of CEBs is an evolving story of epic proportions and represents the cooperative efforts of individuals in all areas of science.
Economic growth, reflected in increases in national output per capita, makes possible an improved material standard of living and the alleviation of poverty. Sustainable development, popularly and concisely defined as ‘meeting the needs of the present generations without compromising the ability of future generations to meet their needs,' directly addresses the utilization of natural resources, the state of the environment, and intergenerational equity. Now in its second edition, Economic Growth and Sustainable Development features expanded discussion of income distribution, social capital and the insights of behavioural economics for climate change mitigation. Boxed case studies have been added which explore the impact of economic growth on people and countries in both the developed and developing world. This text addresses the following fundamental questions: What causes economic growth? Why do some countries grow faster than others? What accounts for the extraordinary growth in the world’s population over the past two centuries? What are the current trends in population and will these trends continue? How do we measure sustainable development and is sustainable development compatible with economic growth? Why is climate change the greatest market failure of all time? What can be done to mitigate climate change and global warming? With a blend of formal models, empirical evidence, history and policy, this text provides a coherent and comprehensive treatment of economic growth and sustainable development. It is suitable for those who study development economics, sustainable development and ecological economics.
Explaining the practical implications of new discoveries in 'life-course biology', Nutrition and Lifestyle for Pregnancy and Breastfeeding is an informed resource on factors that affect offspring development. The impact of parental lifestyle and behavioural choices influence not only fetal development and birth outcomes, but also postnatal development, yet guidance on appropriate diet, behaviour, and exposures during pregnancy is often confusing and contradictory. With accessible explanations of the latest scientific research, and clear summaries and recommendations, this book is a valuable and authoritative guide for all levels of health care providers. The authors provide an overview of the background evidence, highlighting the importance of lifestyle choices prior to and during pregnancy. In-depth discussions of nutritional and lifestyle factors that impact on pregnancy and offspring outcomes are based on the latest research and exploration of key scientific studies. Nutrition and Lifestyle for Pregnancy and Breastfeeding is a manual offering both scientific and clinical evidence to empower health care providers and ensure they have the information necessary to confidently care for prospective and new parents.
Bluetongue may be described as an acute insect borne disease of ruminants, manifested clinically in sheep by a catarrhal inflammation of the mucous mem branes of the digestive and respiratory systems and associated with degenerative changes in the skeletal musculature. The profound emaciation and weakness which follow the acute disease are responsible for a protracted convalescence and for serious economic losses due to diminished productivity. II. Historical During the early colonisation of Africa, susceptible Merino and other European breeds of sheep were introduced into the Cape, at first by the Dutch East India Company between 1652 and 1785 and again later in 1870. A report of the Cattle and Sheep Diseases Commission (1876) records the appearance of a serious febrile disease amongst these imported sheep in which both morbidity and mortality was high (cited by HENNING, 1949). HuTCHEON (1881) gave this disease the name of "Fever" or "Epizootic Catarrh", in order to distinguish it from other clinical conditions of a similar nature encountered amongst sheep. In the first com prehensive description of this clinical syndrome and its epizootiology HuTCHEON (1902) referred to it as "Malarial Catarrhal Fever of Sheep", a designation which was obviously influenced by the mistaken belief that an intracorpuscular parasite was the primary cause of the disease. More systematic studies were conducted by SPREULL (1902; 1905), who endeavoured to immunize sheep by the simultaneous inoculation of immune serum and infective blood.
The volume describes the chemical and physical properties of the approximately 80 known bromine compounds and ions which contain oxygen and/or nitrogen, and which may include hydrogen as well. The class of bromine-oxygen and bromine-oxygen-hydrogen compounds comprises several well-known species. Their description accounts for approximately three-quarters of the volume. The BrO radical and the BrO3 ion are the most and best studied among all binary bromine-oxygen species. BrO was recently recognized to play a role in some reaction sequences depleting the ozone concentration in the stratosphere. Bromate-ion-driven chemical oscillator systems have attracted much interest in recent decades. Thus data on single reaction steps which involve BrO3, BrO2, and the oxoacides of bromine - HBrO, HBrO2, and HBrO3 - are reviewed in detail; a comprehensive description of the oscillating systems, however, is beyond the scope of this volume. The remaining one-quarter of the volume is devoted to bromine-nitrogen and bromine-nitrogen-oxygen compounds. Bromine azide and nitrosyl bromide are the most comprehensively studied of these, accounting for almost half of this section.
Atkins' Physical Chemistry: Molecular Thermodynamics and Kinetics is designed for use on the second semester of a quantum-first physical chemistry course. Based on the hugely popular Atkins' Physical Chemistry, this volume approaches molecular thermodynamics with the assumption that students will have studied quantum mechanics in their first semester. The exceptional quality of previous editions has been built upon to make this new edition of Atkins' Physical Chemistry even more closely suited to the needs of both lecturers and students. Re-organised into discrete 'topics', the text is more flexible to teach from and more readable for students. Now in its eleventh edition, the text has been enhanced with additional learning features and maths support to demonstrate the absolute centrality of mathematics to physical chemistry. Increasing the digestibility of the text in this new approach, the reader is brought to a question, then the math is used to show how it can be answered and progress made. The expanded and redistributed maths support also includes new 'Chemist's toolkits' which provide students with succinct reminders of mathematical concepts and techniques right where they need them. Checklists of key concepts at the end of each topic add to the extensive learning support provided throughout the book, to reinforce the main take-home messages in each section. The coupling of the broad coverage of the subject with a structure and use of pedagogy that is even more innovative will ensure Atkins' Physical Chemistry remains the textbook of choice for studying physical chemistry.
The volume is concerned exclusively with all the binary species formed between the elements silicon and fluorine such as SiF, SiF2, SiF3, SiF4, and Sif62-. Most of the volume, i.e. 144 pages, is devoted to the description of the well known physical and chemical properties of the SiF4 as well as to its preparation. This is followed in length by the report on SiF2 with its interesting chemistry, along with a section on the diatomic radical SiF. Species with fivefold and sixfold coordination of silicon are exemplified by SiF5- and by the well known SiF62-. Interestingly, the detailed models for describing the bonding situation in both ions are still a matter of discussion. While for Si2F6 most of the basic data are known, information on the chemical and physical properties of the higher members of the acylic perfluorosilanes, SinF2n+2, is scarce. All available information on the unstable cyclic perfluorosilanes of composition (SiF2)n and some even more exotic species is also included.
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