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INGLÊS

Atomic Hypothesis And The Concept Of Molecular Structure

59,61€ + 10% EM CARTÃO

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 "Imagination and shrewd guesswork are powerful instruments for acquiring scientific knowledge . . . " 1. H. van''t Hoff The last decades have witnessed a rapid growth of quantum chemistry and a tremendous increase in the number of very accurate ab initio calculations of the electronic structure of molecules yielding results of admirable accuracy. This dramatic progress has opened a new stage in the quantum mechanical description of matter at the molecular level. In the first place, highly accurate results provide severe tests of the quantum mecha nics. Secondly, modern quantitative computational ab initio methods can be synergetically combined with various experimen tal techniques thus enabling precise numerical characterization of molecular properties better than ever anticipated earlier. However, the role of theory is not exhausted in disclosing the fundamental laws of Nature and production of ever increasing sets of data of high accuracy. It has to provide additionally a means of systematization, recognition of regularities, and ratio nalization of the myriads of established facts avoiding in this way complete chaos. Additional problems are represented by molecular wavefunctions provided by the modern high-level computational quantum chemistry methods. They involve, in principle, all the information on molecular system, but they are so immensely complex that can not be immediately understood in simple and physically meaningful terms. Both of these aspects, categorization and interpretation, call for conceptual models which should be preferably pictorial, transparent, intuitively appealing and well-founded, being sometimes useful for semi quantitative purposes.
INGLÊS

Photosynthesis

de R.P. Gregory

118,59€ + 10% EM CARTÃO

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 Photosynthesis--the capture of light energy by living organisms -is a simple enough concept, but its investigation draws on the resources of disciplines from all fields of science. I have assumed that the reader is pursuing a course with a content of biochemistry, microbiology and plant science, or has access to basic texts.
INGLÊS

Physico-Chemical Behaviour Of Atmospheric Pollutants - Proceedings Of The Fourth European Symposium Held In Stresa, Italy, 23-25 September 1986

59,61€ + 10% EM CARTÃO

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 Fourth European Symposium held in Stresa, Italy, September 23-25, 1986
INGLÊS

Geochemistry In Petroleum Exploration

de Douglas W. Waples

95,40€ + 10% EM CARTÃO

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 This book is intended primarily as a textbook for geolo gists engaged in petroleum exploration. Its purpose is to introduce the reader to organic geochemistry and to show how to apply geochemistry advantageously in an explora tion program. I have made the explicit assumption that most readers will have a sound background in geology but far less knowledge of, or interest in, chemistry. Be cause there is no need for an exploration geologist to be an expert in organic chemistry, the amount of chemistry used in the book is rather modest. It is, however, often important for a geologist to understand some basic vocab ulary. The emphasis in this book is on applications of geo _chemistry to hydrocarbon exploration. Most of the analyt ical techniques are discussed only briefly, because although a geologist should know what a gas chro matograph is, he or she is unlikely to be asked to repair one. If more detailed knowledge does prove necessary, a laboratory is the proper place to learn. The strengths and weaknesses of the various analytical techniques are discussed so that a geologist will be able to anticipate pitfalls, cull bad data, and choose an appropri ate analytical program. On-the-job experience will prove invaluable in converting the basic information from this text into a practical working knowledge.
INGLÊS

Shallow Refraction Seismics

59,61€ + 10% EM CARTÃO

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 There are many general geophysical textbooks dealing with the subject of seismic refraction. As a rule, they treat the principles and broad aspects ofthe method comprehensively but problems associated with engineering seismics at shallow depths are treated to a lesser extent. The intention of this book is to emphasize some practical and theoretical aspects of detailed refraction surveys for civil engineering projects and water prospecting. The book is intended for students of geophysics, professional geophysicists and geologists as well as for personnel who, without being directly involved in seismic work, are planning surveys and evaluating and using seismic results. The latter category will probably find Chapters 1, 5 and 6 of most interest. Interpretation methods, field work and interpretation of field examples constitute the main part of the book. When writing I have tried to concentrate on topics not usually described in the literature. In fact, some discussions on interpretation and correction techniques and on sources of error have not been published previously. The field examples, which are taken from sites with various geological conditions, range from simple to rather complicated interpretation problems. Thanks are due to A/S Geoteam (Norway), Atlas Copco ABEM AB (Sweden), BEHACO (Sweden) and the Norwegian Geotechnical Institute for allowing me to use field examples and certain data from their investigations. I should particularly like to thank Professor Dattatray S. Parasnis of the University of Luleii (Sweden) for revising the manuscript and for his numerous invaluable suggestions.
INGLÊS

Practical Absorption Spectrometry - Ultraviolet Spectrometry Group

de A. Knowles e C. Knowles

59,61€ + 10% EM CARTÃO

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 The inspiration for this volume lies in Edisbury''s Practical Hints for Absorption Spectrometry which was published 17 years ago. Dr Edisbury was a founding member of the Photoelectric Spectrometry Group, served as its first Secretary and edited the Bulletin for many years. His wisdom, humour and pragmatism was evident in early meetings of the Group and in the first issues of the Bulletin, and these qualities were distilled in the writing of Practical Hints. In 1977, the Committee of the Group, which by then had been re-named The UV Spectrometry Group, decided to make use of the expertise available amongst the members of the Group in writing some monographs on the practice of UV and visible spectrometry. Working parties were set up which formulated and produced the first two volumes of the series on Standards in Absorption Spectrometry and Standards in Fluorescence Spectrometry. The success of these volumes lead the present Committee of the Group to set up a new Working Party in 1981 to plan a modern version of Edisbury''s book. The idea really caught fire'' at the first meeting of the Working Party, when ideas sufficient to fill ten vol umes were put forward. We would not pretend to emulate Edisbury''s unique style, but hoped to produce a readable book for the newcomer to UV -visible absorption spectrometry, and perhaps to improve the technique of more experienced users.
INGLÊS

Plant Molecular Biology

de Donald Grierson e S.N. Covey

59,61€ + 10% EM CARTÃO

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 The second edition of this textbook has been substantially revised and updated to take into account the rapid advances in research over the last few years.
INGLÊS

Solute Transport In Plants

de A.R. Yeo e T.J. Flowers

59,61€ + 10% EM CARTÃO

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 The study of solute transport in plants dates back to the beginnings of experimental plant physiology, but has its origins in the much earlier interests of humankind in agriculture. Given this lineage, it is not surprising that there have been many books on the transport of solutes in plants; texts on the closely related subject of mineral nutrition also commonly address the topic of ion transport. Why another book? Well, physiologists continue to make new discoveries. Particularly pertinent is the characterisation of enzymes that are able to transport protons across membranes during the hydrolysis of energy-rich bonds. These enzymes, which include the H + -A TPases, are now known to be crucial for solute transport in plants and we have given them due emphasis. From an academic point of view, the transport systems in plants are now appreciated as worthy of study in their own right-not just as an extension of those systems already much more widely investigated in animals. From a wider perspective, understanding solute transport in plants is fundamental to understanding plants and the extent to which they can be manipulated for agricultural purposes. As physiologists interested in the mechanisms of transport, we first set out in this book to examine the solutes in plants and where are they located. Our next consideration was to provide the tools by which solute movement can be understood: a vital part of this was to describe membranes and those enzymes catalysing transport.
INGLÊS

Fish Ecology

59,61€ + 10% EM CARTÃO

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 Introduces the ecology of fishes by describing the inter-relationships between fishes and the aquatic habitats they occupy. This work covers the main themes of ecology, including habitat use, species interactions, migration, feeding, population dynamics and reproduction in relation to the major habitats occupied by fishes.
INGLÊS

Locomotion Of Animals

95,40€ + 10% EM CARTÃO

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 This book is about how animals travel around on land, in water and in the air. It is mainly about mechanisms of locomotion, their limitations and their energy requirements. There is some information about muscle physiology in Chapter 1, but only as much as seems necessary for the discussions of mechanisms and energetics. There is information in later chapters about the patterns of repetitive movement involved, for instance, in different gaits, but nothing about nervous mechanisms of coordination. I have tried to include most ofthe widely-used methods of locomotion, but have not thought it sensible to try to mention every variety of locomotion used by animals. This book is designed for undergraduates, but I hope that other people will also find it interesting. It is possible and sometimes illuminating to use complex mathematics in discussions of animal locomotion. This book includes many equations, but little mathematics. Such mathematics as there is, is simple. Discussions of the mechanisms and energetics of locomotion inevitably involve mechanics. I expect that some readers will know a lot of mechanics, and some hardly any. I have tried to help the latter without boring the former, by putting a summary of the necessary mechanics in an appendix (p. 140). References from the main text to the appendix will tell readers where they can find help, if they need it. Figures and equations in the appendix have numbers distinguished by a prefix A (for instance, Figure A.3).
INGLÊS

Biological Membranes - Their Structure And Function

95,40€ + 10% EM CARTÃO

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 to the Second Edition RESEARCH INTO MEMBRANE-ASSOCIATED PHENOMENA HAS EXPANDED VERY greatly in the five years that have elapsed since the first edition of Biological Membranes was published. It is to take account of rapid advances in the field that we have written the present edition. There is now general acceptance of the fluid mosaic model of membrane structure and of the chemiosmotic interpretation of energetic processes, and our attention has shifted from justifying these ideas to explaining membrane functions in their terms. Much more information has become available concerning the role of the plasma membrane in the cell''s recognition of and response to external signals, and this is reflected in the increased coverage of these topics in the book. The general form of the book remains the same. As before, a list of suggested reading, sub-divided by chapter, is provided and this has been expanded to include a greater proportion of original papers. The book is still primarily designed as an advanced undergraduate text and also to serve as an introduction for post-graduate workers entering the field of membrane research. We have taken cognizance of the comments of many reviewers, colleagues and students on the first edition and thank them for their contributions. In particular we wish to acknowledge our colleagues R. Eisenthal, G. D. Holman, D. W. Hough, and A. H. Rose. Dr. C. R.
INGLÊS

Introduction To Coastal Ecology

de P.J. Boaden e R. Seed

64,91€ + 10% EM CARTÃO

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 The authors have adopted a habitat-organismal approach because they believe that a knowledge of biota and major features of their environment is the best key to an understanding of both larger and smaller scale processes.
INGLÊS

Estuarine Ecosystem

de Donald Mclusky

59,61€ + 10% EM CARTÃO

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 For the inhabitants of many of the world's major cities and towns, estuaries provide their nearest glimpse of a natural habitat; In spite of these problems, life in estuaries can be very abundant because estuarine mud is a rich food supply which can support a large number of animals with a large total weight and a high annual production.
INGLÊS

Biology Of Fresh Waters

de P.S. Maitland

118,59€ + 10% EM CARTÃO

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 In the decade since the first edition of this book was published advances have been made in our knowledge of the fresh waters of the world, espe- cially in understanding many of the processes involved in their functioning as systems and in countering the problems created by human activities.
INGLÊS

Introduction To Marine Science

de J.I. Campbell e P.S. Meadows

59,61€ + 10% EM CARTÃO

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 This fully revised and updated second edition of the text introducing the study of the sea contains a chapter on man's use of the oceans to cover satellites and position fixing, renewable energy sources in the sea, seabed minerals, oil and gas, pollution and maritime law.
INGLÊS

Mammal Ecology

de M.J. Delany

59,61€ + 10% EM CARTÃO

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 Organized under broad ecological headings, this book provides a selection of present knowledge of mammal ecology with examples selected from a wide range of species and from all parts of the world.
INGLÊS

Introduction To Marine Science

de P.S. Meadows

59,61€ + 10% EM CARTÃO

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 It is now nine years since the first edition appeared and much has changed in marine science during that time. As in the first edition, PSM has been mainly responsible for the text and HC for the illustrations, although each has responded to advice from the other and also from many colleagues.
INGLÊS

Visual Aids To The Mrcp Examination

de N.K. Chakravorty

60,82€ + 10% EM CARTÃO

portes grátis

 A large number of doctors take the MRCP examination every year; Considerable information is gathered not only from the doctors who have already passed this examination but also from those who have been currently sitting the examination.
INGLÊS

The Endometrium

121,66€ + 10% EM CARTÃO

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 The Eighth Brook Lodge Conference on Problems of Reproductive Physiology is the latest in a series of small meetings held over 18 years. Examination of the physical relationÂ ships, biochemical interactions and hormonal influences in this tissue could further advance the understanding of this pivotal tissue in the reproductive process.
Techniques For Multiaxial Creep Testing

60,82€ + 10% EM CARTÃO

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 The design and assessment of modern high temperature plant demands an understanding of the creep and rupture behaviour of materials under multi axial stress states. In the case of high temperature components the extension of life beyond the nominal design figure, say from 100000 to 200000 h, offers very significant economic benefits.
Food Biotechnologyâ€”1

60,82€ + 10% EM CARTÃO

portes grátis

 Some of the ways in which the food industry is likely to be affected by developments in biotechnology include the following: The modification of food components to give products with new and/or improved properties, for instance high fructose corn syrups, and by modifying the functional properties of proteins.
Salmon - Economics And Marketing

de J.F. Muir e S. Shaw

60,82€ + 10% EM CARTÃO

portes grátis

 with the issues involved in the management of salmon fishing. marketing and distribution and Chapter 8 discusses the workings of salmon markets and the main factors affecting the demand for salmon. This book does not cover all species of salmon but concentrates on the main species of current commercial significance.
Bayesian Analysis And Uncertainty In Economic Theory

60,82€ + 10% EM CARTÃO

portes grátis

 We were attracted to the Bayesian approach because it seemed the best analytic framework available for dealing with decision making under uncertainty, and the research presented in this book has only served to strengthen our belief in the appropriateness and usefulness of this methodology.
Introduction To Impact Engineering

60,82€ + 10% EM CARTÃO

portes grátis

 We are all familiar with impact. In applied mathematics, impacts have provided interesting theoretical problems with elegant solutions but it has been difficult to check results experimentally. Impacts can change the behaviour of materials but similar changes can sometimes be produced in other ways and the underlying mechanisms are not clear.
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