bluuebunny/crossref_metadata_2025 huggingface dataset:
Australian Cities
Authors: Troy Patrick
Published: May 2011

The problems faced by urban Australia became more prevalent in the years prior to publication of this 1995 book. They sprang from the public cost of urban growth, the negative environmental impact of cities, the importance of global competitiveness, tensions between the three tiers of government and declining standards of living in our cities. This book, written by a team of leading authors, offers an exploration of key issues in the debates about our cities. Incisive and up-to-date, it will be an important contribution to discussion about urban planning and policy. Edited by Patrick Troy, Professor of Urban Research at the Australian National University, Australian Cities describes the options and limitations of Australian urban planning practice. It will be read by students and academics in urban studies, political science, sociology, town planning and public policy as well as policy-makers and professionals.
Law, Sexuality, and Society
Authors: Cohen David
Published: May 2011

Centering on the examination of the social and legal context of adultery, homosexuality, impiety, and the public-private dichotomy in Athenian society, this book attempts to examine the problems of social control and the regulation of sexuality in a way that will be of interest to a broad readership. It uses a comparative approach to show how the examination of such issues can deepen our understanding of classical Athens, particularly in regard to the role of law in society. Further, it argues that this historical investigation can, in turn, enrich our general appreciation of the relation of social and legal norms, and the roles they play in regulating complex social practices, such as those associated with sexuality, morals and the family.
John as Storyteller
Authors: Stibbe Mark W. G.
Published: May 2011

In this widely acclaimed study of John's Gospel, Mark W. G. Stibbe shows how the fourth evangelist uses all the tactics of a skilled storyteller to promote his distinctive Christology. Literary and historical methodologies are integrated by the author in his narrative criticism, and a new, holistic approach to the gospel literature is suggested thereby.
Asymmetric Conflicts
Authors: Paul T. V.
Published: May 2011

This book examines a question generally neglected in the study of international relations: why does a militarily and economically less powerful state initiate conflict against a relatively strong state? T. V. Paul analyses this phenomenon by focusing on the strategic and political considerations, domestic and international, which influence a weaker state to initiate war against a more powerful adversary. The key argument of deterrence theory is that the military superiority of the status quo power, coupled with a credible retaliatory threat, will prevent attack by challengers. The author challenges this assumption by examining six twentieth-century asymmetric wars, from the Japanese offensive against Russia in 1904 to the Argentine invasion of the Falkland Islands in 1982. The book's findings have wide implications for the study of war, power, deterrence, coercive diplomacy, strategy, arms races, and alliances.
Essai sur la Théorie des Nombres
Authors: Legendre Adrien Marie
Published: May 2011

Adrien-Marie Legendre (1752–1833), one of the great French mathematicians active in the Revolutionary period, made important contributions to number theory, statistics, mathematical analysis and algebra. He taught at the École Militaire, where he was a colleague of Laplace, and made his name with a paper on the trajectory of projectiles which won a prize of the Berlin Academy in 1782, and brought him to the attention of Lagrange. In 1794 he published Eléments de géométrie, which remained a textbook for over 100 years. The first edition of his Essai sur la théorie des nombres was published in 1798, and the much improved second edition, which is offered here, in 1808. In it Legendre had taken account of criticism by Gauss of the mathematical proofs in the first edition, though he was bitter at the manner in which his younger rival had claimed credit for some of his solutions.
The Collected Mathematical Papers
Authors: Cayley Arthur
Published: May 2011

Arthur Cayley (1821–1895) was a key figure in the creation of modern algebra. He studied mathematics at Cambridge and published three papers while still an undergraduate. He then qualified as a lawyer and published about 250 mathematical papers during his fourteen years at the Bar. In 1863 he became the first Sadleirian Professor of Pure Mathematics at Cambridge, where he continued to publish at a phenomenal rate on nearly every aspect of the subject, his most important work being in matrices, geometry and abstract groups. In 1883 he became president of the British Association for the Advancement of Science. Publication of his Collected Papers - 967 papers in 13 volumes plus an index volume - began in 1889 and was completed after his death. This second volume contains 56 papers published between 1851 and 1860, plus two 1889 papers, and includes six of the Memoirs on Quantics.
The Collected Mathematical Papers
Authors: Cayley Arthur
Published: May 2011

Arthur Cayley (1821–1895) was a key figure in the creation of modern algebra. He studied mathematics at Cambridge, qualified as a lawyer, and published about 250 mathematical papers during his fourteen years at the Bar. In 1863 he became the first Sadleirian Professor of Pure Mathematics at Cambridge, where he continued to publish at a phenomenal rate on nearly every aspect of the subject, his most important work being in matrices, geometry and abstract groups. In 1883 he became president of the British Association for the Advancement of Science. Publication of his Collected Papers - 967 papers in 13 volumes plus an index volume - began in 1889 and was completed after his death (while this volume was in the press) under the editorship of his successor in the Sadleirian Chair. This volume contains 70 papers published mostly between 1871 and 1873, as well as a 36-page obituary of the author.
The Collected Mathematical Papers
Authors: Cayley Arthur
Published: May 2011

Arthur Cayley (1821–1895) was a key figure in the creation of modern algebra. He studied mathematics at Cambridge and published three papers while still an undergraduate. He then qualified as a lawyer and published about 250 mathematical papers during his fourteen years at the Bar. In 1863 he took a significant salary cut to become the first Sadleirian Professor of Pure Mathematics at Cambridge, where he continued to publish at a phenomenal rate on nearly every aspect of the subject, his most important work being in matrices, geometry and abstract groups. In 1883 he became president of the British Association for the Advancement of Science. Publication of his Collected Papers - 967 papers in 13 volumes plus an index volume - began in 1889 and was completed after his death under the editorship of his successor in the Sadleirian Chair. This volume contains 93 papers mostly published between 1878 and 1883.
Vom Roroima zum Orinoco
Authors: Koch-Grünberg Theodor
Published: May 2011

Theodor Koch-Grünberg (1872–1924) was a noted German ethnologist and explorer whose work on the indigenous peoples of Brazil and Venezuela is still consulted by anthropologists, ethnologists and linguists. His most important publication was this five-volume account of his 1911–1913 expedition from the sandstone mountains bordering Brazil, Venezuela and Guyana through uncharted territory westwards to the Orinoco. Volume 1 is a description of the journey, based on the diaries in which Koch-Grünberg recorded his immediate impressions. This entertaining informal travelogue covers a huge variety of topics including insect life, illness, gambling, theft, food supply and hunting, myths and shamanic rituals, as well as the practical difficulties of covering the terrain. Koch-Grünberg vividly describes the individuals he meets, and his reactions to his experiences, ranging from fury and frustration to amusement, admiration, and gratitude. The book has over fifty illustrations, mostly the author's own photographs.
Vom Roroima zum Orinoco
Authors: Koch-Grünberg Theodor
Published: May 2011

Theodor Koch-Grünberg (1872–1924) was a noted German ethnologist and explorer whose work on the indigenous peoples of Brazil and Venezuela is still consulted by anthropologists, ethnologists and linguists today. His most important publication was this five-volume account of his expedition of 1911–1913 from the sandstone mountains bordering Brazil, Venezuela and Guyana through uncharted territory westwards to the Orinoco. Volume 5 contains 185 photographs of individuals and groups selected from around 350 taken by the author. His intention was to provide data on the physical characteristics of the tribes he encountered before the distinctions between them became blurred or vanished. Exact measurements and precise ages are not provided, but the author explains how individuals are related, gives their indigenous and 'Christian' names and social status, and provides a 'pen-portrait' for people he came to know personally. A short introduction provides contextualising information about geography and population.
The Cults of the Greek States
Authors: Farnell Lewis Richard
Published: May 2011

Lewis Richard Farnell's five-volume The Cults of the Greek States, first published between 1896 and 1909, disentangles classical Greek mythology and religion, since the latter had often been overlooked by nineteenth-century English scholars. Farnell describes the cults of the most significant Greek gods in order to establish their zones of influence, and outlines the personality, monuments, and ideal types associated with each deity. He also resolutely avoids the question of divine origins and focuses instead on the culture surrounding each cult, a position which initially drew some criticism, but which allowed him more space to analyse the religious practices themselves. Written to facilitate a comparative approach to Greek gods, his work is still regularly cited today for its impressive collection of data about the worship of the most popular deities. Volume 2 focuses on the cults of Artemis, Adrasteia, Hekate, Eileithyia, and Aphrodite.
The Cults of the Greek States
Authors: Farnell Lewis Richard
Published: May 2011

Lewis Richard Farnell's five-volume The Cults of the Greek States, first published between 1896 and 1909, disentangles classical Greek mythology and religion, since the latter had often been overlooked by nineteenth-century English scholars. Farnell describes the cults of the most significant Greek gods in order to establish their zones of influence, and outlines the personality, monuments, and ideal types associated with each deity. He also resolutely avoids the question of divine origins and focuses instead on the culture surrounding each cult, a position which initially drew some criticism, but which allowed him more space to analyse the religious practices themselves. Written to facilitate a comparative approach to Greek gods, his work is still regularly cited today for its impressive collection of data about the worship of the most popular deities. Volume 5 focuses on the cults of Hermes, Dionysos, Hestia, Hephaistos, Ares and several minor figures.
Jewish Exegesis and Homeric Scholarship in Alexandria
Authors: Niehoff Maren R.
Published: May 2011

Systematically reading Jewish exegesis in light of Homeric scholarship, this book argues that more than 2000 years ago Alexandrian Jews developed critical and literary methods of Bible interpretation which are still extremely relevant today. Maren R. Niehoff provides a detailed analysis of Alexandrian Bible interpretation, from the second century BCE through newly discovered fragments to the exegetical work done by Philo. Niehoff shows that Alexandrian Jews responded in a great variety of ways to the Homeric scholarship developed at the Museum. Some Jewish scholars used the methods of their Greek colleagues to investigate whether their Scripture contained myths shared by other nations, while others insisted that significant differences existed between Judaism and other cultures. This book is vital for any student of ancient Judaism, early Christianity and Hellenistic culture.
Unravelling Starlight
Authors: Becker Barbara J.
Published: May 2011

Challenging traditional accounts of the origins of astrophysics, this book presents the first scholarly biography of nineteenth-century English amateur astronomer William Huggins (1824–1910). A pioneer in adapting the spectroscope to new astronomical purposes, William Huggins rose to scientific prominence in London and transformed professional astronomy to become a principal founder of the new science of astrophysics. The author re-examines his life and career, exploring unpublished notebooks, correspondence and research projects to expose the boldness of this scientific entrepreneur. While Sir William Huggins is the main focus of the book, the involvement of Lady Margaret Lindsay Huggins (1848–1915) in her husband's research is examined, where it may have been previously overlooked or obscured. Written in an engaging style, this book has broad appeal and will be valuable to scientists, students and anyone interested in the history of astronomy.
The Origins of the Necessary and Proper Clause
Authors: Lawson Gary , Miller Geoffrey P. , Natelson Robert G. , Seidman Guy I.
Published: May 2011

The Necessary and Proper Clause is one of the most important parts of the US Constitution. Today this short thirty-nine-word paragraph is cited as the legal foundation for much of the modern federal government. Through three independent lines of research, the authors trace the lineage of the Necessary and Proper Clause to the everyday law of the Founding Era - the same law that American founders such as Madison, Hamilton, and Washington applied in their daily lives. Origins of the Necessary and Proper Clause are found in law-governing agencies, public administration, and corporations. Moreover, all of those areas were undergirded by common principles of fiduciary responsibility - reflecting the Founders' view that a public office is truly a public trust. This explains the choice of language in the clause and provides clues about its meaning. This book thus serves as a reference source for scholars seeking to understand the intellectual foundations of one of the Constitution's most important clauses.
Festivals, Feasts, and Gender Relations in Ancient China and Greece
Authors: Zhou Yiqun
Published: May 2011

Ancient China and Greece are two classical civilisations that have exerted far-reaching influence in numerous areas of human experience and are often invoked as the paradigms in East-West comparison. This book examines gender relations in the two ancient societies as reflected in convivial contexts such as family banquets, public festivals, and religious feasts. Two distinct patterns of interpersonal affinity and conflict emerge from the Chinese and Greek sources that show men and women organising themselves and interacting with each other in social occasions intended for collective pursuit of pleasure. Through an analysis of the two different patterns, Yiqun Zhou illuminates the different socio-political mechanisms, value systems, and fabrics of human bonds in the two classical traditions. Her book will be important for readers who are interested in the comparative study of societies, gender studies, women's history, and the legacy of civilisations.
The Public International Law Theory of Hans Kelsen
Authors: von Bernstorff Jochen
Published: May 2011

This analysis of Hans Kelsen's international law theory takes into account the context of the German international legal discourse in the first half of the twentieth century, including the reactions of Carl Schmitt and other Weimar opponents of Kelsen. The relationship between his Pure Theory of Law and his international law writings is examined, enabling the reader to understand how Kelsen tried to square his own liberal cosmopolitan project with his methodological convictions as laid out in his Pure Theory of Law. Finally, Jochen von Bernstorff discusses the limits and continuing relevance of Kelsenian formalism for international law under the term of 'reflexive formalism', and offers a reflection on Kelsen's theory of international law against the background of current debates over constitutionalisation, institutionalisation and fragmentation of international law. The book also includes biographical sketches of Hans Kelsen and his main students Alfred Verdross and Joseph L. Kunz.
Handbook of Fetal Medicine
Authors: Kumar Sailesh
Published: May 2011

Handbook of Fetal Medicine provides a concise and practical guide to the modern management of normal pregnancy and the at-risk fetus. Comprehensive in scope, in an easy-to-use format, the book provides guidance on a wide range of conditions, best practice management strategies and treatment options in maternal-fetal medicine. Each system-based chapter has a brief introduction on embryology and discusses the key genetic developments and relevant developmental abnormalities. The book begins by addressing genetic disorders such as Down syndrome, and goes on to consider skeletal and bodily system abnormalities. All key management points are highlighted and data on long-term outcomes are provided. This book will appeal to maternal-fetal medicine specialists, subspecialty trainees, obstetricians and midwives as a useful practical reference tool in daily practice. It is particularly suitable for trainees in Obstetrics & Gynaecology preparing for the post graduate examinations.
International Commercial Tax
Authors: Harris Peter , Oliver David
Published: May 2011

Inspired by a postgraduate course the authors have jointly taught at the University of Cambridge since 2001, Peter Harris and David Oliver use their divergent backgrounds (academia and tax practice) to build a conceptual framework that not only makes the tax treatment of complex commercial transactions understandable and accessible, but also challenges the current orthodoxy of international tax norms. Designed specifically for postgraduate students and junior practitioners, it challenges the reader to think about tax issues conceptually and holistically, while illustrating the structure with practical examples. Senior tax practitioners and academics will also find it useful as a means of refreshing their understanding of the basics and the conceptual framework will challenge them to think more deeply about tax issues.
Business and Public Policy
Authors: Rivera Jorge E.
Published: May 2011

It is increasingly common for businesses to face public policies and government regulation that demand some form of environmental or social protection. These protective public policies have grown in number, complexity, and stringency over the last few decades, not only in industrialized countries but also in the developing world. In this 2010 book, Jorge Rivera presents a theoretical framework for understanding the relationship between protective public policies and business compliance. This framework explains different levels of business compliance in terms of three different factors: the link between the stages of protective public policies and different levels of business resistance, the effect of country context, and the effect of firm-level characteristics. The second part of the book supports and elaborates on this framework by presenting empirical studies that examine two voluntary environmental programs: the US ski industry's Sustainable Slopes Program and the Certification for Sustainable Tourism in Costa Rica.
Rethinking the Judicial Settlement of Reconstruction
Authors: Brandwein Pamela
Published: May 2011

American constitutional lawyers and legal historians routinely assert that the Supreme Court's state action doctrine halted Reconstruction in its tracks. But it didn't. Rethinking the Judicial Settlement of Reconstruction demolishes the conventional wisdom - and puts a constructive alternative in its place. Pamela Brandwein unveils a lost jurisprudence of rights that provided expansive possibilities for protecting blacks' physical safety and electoral participation, even as it left public accommodation rights undefended. She shows that the Supreme Court supported a Republican coalition and left open ample room for executive and legislative action. Blacks were abandoned, but by the president and Congress, not the Court. Brandwein unites close legal reading of judicial opinions (some hitherto unknown), sustained historical work, the study of political institutions, and the sociology of knowledge. This book explodes tired old debates and will provoke new ones.
String Theory
Authors: Polchinski Joseph
Published: May 2011

String Theory comprises two volumes which give a comprehensive and pedagogic account of the subject. Volume 1, first published in 1998, provides a thorough introduction to the bosonic string. The first four chapters introduce the central ideas of string theory, the tools of conformal field theory and of the Polyakov path integral, and the covariant quantization of the string. The next three chapters treat string interactions: the general formalism, and detailed treatments of the tree level and one loop amplitudes. Chapter eight covers toroidal compactification and many important aspects of string physics, such as T-duality and D-branes. Chapter nine treats higher-order amplitudes, including an analysis of their finiteness and unitarity, and various nonperturbative ideas. An appendix giving a short course on path integral methods is included. This is an essential text and reference for graduate students and researchers interested in modern superstring theory.
Adjudication in Religious Family Laws
Authors: Solanki Gopika
Published: May 2011

This book argues that the shared adjudication model in which the state splits its adjudicative authority with religious groups and other societal sources in the regulation of marriage can potentially balance cultural rights and gender equality. In this model the civic and religious sources of legal authority construct, transmit and communicate heterogeneous notions of the conjugal family, gender relations and religious membership within the interstices of state and society. In so doing, they fracture the homogenized religious identities grounded in hierarchical gender relations within the conjugal family. The shared adjudication model facilitates diversity as it allows the construction of hybrid religious identities, creates fissures in ossified group boundaries and provides institutional spaces for ongoing intersocietal dialogue. This pluralized legal sphere, governed by ideologically diverse legal actors, can thus increase gender equality and individual and collective legal mobilization by women effects institutional change.
Ruling by Statute
Authors: Saiegh Sebastian M.
Published: May 2011

What are the main factors that allow presidents and prime ministers to enact policy through acts of government that carry the force of law? Or, simply put, when does a government actually govern? The theory presented in this book provides a major advance in our understanding of statutory policy making. Using a combination of an original analytical framework and statistical techniques, as well as historical and contemporary case studies, the book demonstrates that, contrary to conventional wisdom, variations in legislative passage rates are the consequences of differences in uncertainty, not partisan support. In particular, it shows that a chief executive's legislative success depends on the predictability of legislators' voting behavior and whether buying votes is a feasible option. From a normative standpoint, the book reveals that governability is best served when the opposition has realistic chances of occasionally defeating the executive in the legislative arena.
The Elements of MATLAB Style
Authors: Johnson Richard K.
Published: May 2011

The Elements of MATLAB Style is a guide for both new and experienced MATLAB programmers. It provides a comprehensive collection of standards and guidelines for creating solid MATLAB code that will be easy to understand, enhance, and maintain. It is written for both individuals and those working in teams in which consistency is critical. This is the only book devoted to MATLAB style and best programming practices, focusing on how MATLAB code can be written in order to maximize its effectiveness. Just as Strunk and White's The Elements of Style provides rules for writing in the English language, this book provides conventions for formatting, naming, documentation, programming and testing. It includes many concise examples of correct and incorrect usage, as well as coverage of the latest language features. The author also provides recommendations on use of the integrated development environment features that help produce better, more consistent software.
Fred Hoyle
Authors: Mitton Simon
Published: May 2011

The scientific life of Fred Hoyle (1915–2001) was truly unparalleled. During his career he wrote groundbreaking scientific papers and caused bitter disputes in the scientific community with his revolutionary theories. Hoyle is best known for showing that we are all, literally, made of stardust in his paper explaining how carbon, and then all the heavier elements, were created by nuclear reactions inside stars. However, he constantly courted controversy and two years later he followed this with his 'steady state' theory of the universe. This challenged another model of the universe, which Hoyle called the 'big bang' theory. Fred Hoyle was also famous amongst the general public. He popularised his research through radio and television broadcasts and wrote best-selling novels. Written from personal accounts and interviews with Hoyle's contemporaries, this book gives valuable personal insights into Fred Hoyle and his unforgettable life.
Challenging Behaviour
Authors: Emerson Eric , Einfeld Stewart L.
Published: May 2011

'Challenging' behaviours are common among people with intellectual disabilities, resulting in significantly reduced quality of life. These may include aggression, self-injury, destructiveness, hyperactivity and inappropriate social conduct. This new edition provides a concise, accessible and contemporary summary of current knowledge about challenging behaviour, drawn from psychology, psychiatry, medicine and public health. Fully updated and revised, it includes comprehensive coverage of the epidemiology and aetiology of challenging behaviours, and evidence of the efficacy and effectiveness of different approaches to intervention. This edition contains significantly expanded sections on the emergence and development of challenging behaviour and strategies for prevention, at the level of both individuals and service systems. Essential reading for students undertaking professional training in health and related aspects of intellectual disabilities, including psychologists, psychiatrists, nurses, teachers and social workers. This book is a key text for professional staff delivering health, educational and social care services to people with intellectual disabilities.
Socrates and Philosophy in the Dialogues of Plato
Authors: Peterson Sandra
Published: May 2011

In Plato's Apology, Socrates says he spent his life examining and questioning people on how best to live, while avowing that he himself knows nothing important. Elsewhere, however, for example in Plato's Republic, Plato's Socrates presents radical and grandiose theses. In this book Sandra Peterson offers a hypothesis which explains the puzzle of Socrates' two contrasting manners. She argues that the apparently confident doctrinal Socrates is in fact conducting the first step of an examination: by eliciting his interlocutors' reactions, his apparently doctrinal lectures reveal what his interlocutors believe is the best way to live. She tests her hypothesis by close reading of passages in the Theaetetus, Republic and Phaedo. Her provocative conclusion, that there is a single Socrates whose conception and practice of philosophy remain the same throughout the dialogues, will be of interest to a wide range of readers in ancient philosophy and classics.
The Forgotten Diaspora
Authors: Mark Peter , Horta José da Silva
Published: May 2011

This book traces the history of early seventeenth-century Portuguese Sephardic traders who settled in two communities on Senegal's Petite Côte. There, they lived as public Jews, under the spiritual guidance of a rabbi sent by the newly established Portuguese Jewish community in Amsterdam and were protected from agents of the Inquisition by local Muslim rulers. The Petite Côte communities included several Jews of mixed Portuguese-African heritage as well as African wives, offspring, and servants. The blade weapons trade was an important part of their commercial activities. These merchants participated marginally in the slave trade but fully in the arms trade, illegally supplying West African markets with swords. This arms trade depended on artisans and merchants based in Morocco, Lisbon, and northern Europe and affected warfare in the Sahel and along the Upper Guinea Coast. The study discovers previously unknown Jewish communities and by doing so offers a reinterpretation of the dynamics and processes of identity construction throughout the Atlantic world.
Inertial MEMS
Authors: Kempe Volker
Published: May 2011

A practical and systematic overview of the design, fabrication and test of MEMS-based inertial sensors, this comprehensive and rigorous guide shows you how to analyze and transform application requirements into practical designs, and helps you to avoid potential pitfalls and to cut design time. With this book you'll soon be up to speed on the relevant basics, including MEMS technologies, packaging, kinematics and mechanics, and transducers. You'll also get a thorough evaluation of different approaches and architectures for design and an overview of key aspects of testing and calibration. Unique insights into the practical difficulties of making sensors for real-world applications make this up-to-date description of the state of the art in inertial MEMS an ideal resource for professional engineers in industry as well as students looking for a complete introduction to the area.
Mantle Convection for Geologists
Authors: Davies Geoffrey F.
Published: May 2011

Mantle convection is the fundamental agent driving many of the geological features observed at the Earth's surface, including plate tectonics and plume volcanism. Yet many Earth scientists have an incomplete understanding of the process. This book describes the physics and fluid dynamics of mantle convection, explaining what it is, how it works, and how to quantify it in simple terms. It assumes no specialist background: mechanisms are explained simply and the required basic physics is fully reviewed and explained with minimal mathematics. The distinctive forms that convection takes in the Earth's mantle are described within the context of tectonic plates and mantle plumes, and implications are explored for geochemistry and tectonic evolution. Common misconceptions and controversies are addressed - providing a straightforward but rigorous explanation of this key process for students and researchers across a variety of geoscience disciplines.
Effect of bariatric surgery on sulphur amino acids and glutamate
Authors: Aasheim Erlend T. , Elshorbagy Amany K. , My Diep Lien , Søvik Torgeir T. , Mala Tom , Valdivia-Garcia Maria , Olbers Torsten , Bøhmer Thomas , Birkeland Kåre I. , Refsum Helga
Published: May 2011

Plasma total cysteine (tCys) concentrations are associated with BMI. To study the relationship between tCys and BMI, we monitored the changes in serum concentrations of tCys and metabolically related compounds in sixty obese patients (BMI 50–60 kg/m2) from before to 1 year after either gastric bypass surgery (mean 30 % weight loss) or duodenal switch surgery (mean 41 % weight loss). A total of fifty-eight healthy persons (BMI 17–31 kg/m2) served as controls. Before surgery, obese patients had modestly (approximately 17 %) higher mean serum tCys, and markedly (>2-fold) higher glutamate concentrations, than controls (P ≤ 0·001 for both). Serial examinations after surgery revealed that gastric bypass patients had no change in tCys concentrations (P = 0·22), while duodenal switch patients showed a modest (approximately 12 %) but significant decrease in tCys (P < 0·001). Total homocysteine concentrations increased in duodenal switch patients but not in gastric bypass patients. Independent of surgery type, serum concentrations of methionine and cystathionine decreased (P < 0·05 for both), while serum glutathione and taurine remained stable. Glutamate concentrations declined, as did γ-glutamyltransferase activity (P < 0·001 for both). These results show that despite 30 % weight loss, and decreases in methionine, cystathionine and glutamate, there was no significant change in serum tCys in patients after gastric bypass surgery. The decrease in tCys in patients undergoing duodenal switch could be related to malabsorption. The present findings do not suggest that BMI is a causal determinant of plasma tCys.
Antibacterial peptides derived from caprine whey proteins, by digestion with human gastrointestinal juice
Authors: Almaas Hilde , Eriksen Ellen , Sekse Camilla , Comi Irene , Flengsrud Ragnar , Holm Halvor , Jensen Einar , Jacobsen Morten , Langsrud Thor , Vegarud Gerd E.
Published: May 2011

Peptides in caprine whey were identified afterin vitrodigestion with human gastrointestinal enzymes in order to determine their antibacterial effect. The digestion was performed in two continuing steps using human gastric juice (pH 2·5) and human duodenal juice (pH 8) at 37°C. After digestion the hydrolysate was fractionated and 106 peptides were identified. From these results, twenty-two peptides, located in the protein molecules, were synthesised and antibacterial activity examined. Strong activity of the hydrolysates was detected againstEscherichia coliK12,Bacillus cereusRT INF01 andListeria monocytogenes, less activity againstStaphylococcus aureusATCC 25 923 and no effect onLactobacillus rhamnosusGG. The pure peptides showed less antibacterial effect than the hydrolysates. When comparing the peptide sequences from human gastrointestinal enzymes with previously identified peptides from non-human enzymes, only two peptides, β-lactoglobulin f(92–100) and β-casein f(191–205) matched. No peptides corresponded to the antibacterial caprine lactoferricin f(14–42) or lactoferrampin C f(268–284). Human gastrointestinal enzymes seem to be more complex and have different cleavage points in their protein chains compared with purified non-human enzymes. Multiple sequence alignment of nineteen peptides showed proline-rich sequences, neighbouring leucines, resulting in a consensus sequence LTPVPELK. In such a way proline and leucine may restrict further proteolytic processing. The present study showed that human gastrointestinal enzymes generated different peptides from caprine whey compared with non-human enzymes and a stronger antibacterial effect of the hydrolysates than the pure peptides was shown. Antimicrobial activity against pathogens but not against probiotics indicate a possible host-protective activity of whey.
Leptin and insulin growth factor 1: diagnostic markers of the refeeding syndrome and mortality
Authors: Elnenaei Manal O. , Alaghband-Zadeh Jamshid , Sherwood Roy , Awara Mahmoud A. , Moniz Caje , le Roux Carel W.
Published: May 2011

Refeeding syndrome is difficult to diagnose since the guidelines for identifying those at risk are largely based on subjective clinical parameters and there are no predictive biochemical markers. We examined the suitability of insulin-like growth factor 1 (IGF1) and leptin as markers to identify patients at risk of the refeeding syndrome before initiation of parenteral nutrition (PN). A total of thirty-five consecutive patients referred for commencement of PN were included. Serum leptin and IGF1 were measured before starting PN. Electrolytes, liver and renal function tests were conducted before and daily for 1 week after initiating PN. The primary outcome was a decrease in phosphate 12–36 h after initiating PN. ‘Refeeding index’ (RI) was defined as leptin × IGF1 divided by 2800 to produce a ratio of 1·0 in patients who are well nourished. RI had better sensitivity (78 %; 95 % CI 40, 97 %) and specificity (78 %; 95 % CI 40, 97 %) with a likelihood ratio of 3·4, at a cut-off value of 0·19 for predicting a ≥ 30 % decrease in phosphate concentration within 12–36 h after starting PN, compared with IGF1 or leptin alone. However, IGF1 was a better predictor of mortality than either leptin or the RI. The present study is the first to derive and test the ‘RI’, and find that it is a sensitive and specific predictor of the refeeding syndrome in hospitalised patients before starting PN.
SOIL PHYSICAL AND CHEMICAL PROPERTIES AND COCOYAM YIELD UNDER DIFFERENT TILLAGE SYSTEMS IN A TROPICAL ALFISOL
Authors: ADEKIYA A. O. , OJENIYI S. O. , AGBEDE T. M.
Published: May 2011

Experimental data on tillage requirement of cocoyam (Xanthosoma sagittifolium) are needed to identify the most suitable tillage methods for managing the fragile Alfisols of the humid tropics to ensure sustained productivity. Hence, five tillage methods were compared as to their effects on soil physical and chemical properties, and growth and yield of cocoyam on an Alfisol at Owo in the forest-savanna transition zone of southwest Nigeria. The experiment consisted of five tillage methods: manual clearing (MC), manual ridging (MR), manual mounding (MM), ploughing + harrowing (P + H) and ploughing + harrowing twice (P + 2 H) were used for three years at two sites in a randomized complete block design with three replications. In the first two years (2007 and 2008), P + H produced the least soil bulk density and highest growth and yield, whereas in the third year (2009), MC produced the lowest soil bulk density and best performance of cocoyam. Manual clearing produced the best values of soil chemical properties in 2008 and 2009. Averaged over the three years, P + H, MR and MM had lower soil bulk density hence better growth and yield compared with P + 2 H and MC. Over the three years MC, MM, MR and P + H increased cocoyam cormel yield by 10, 21, 23 and 32%, respectively, over P + 2 H.The corresponding increases in corm yield were 7, 15, 13 and 21%, respectively. The multiple regressions revealed that bulk density and moisture content significantly influenced the yield of cocoyam. Soil chemical properties were not significant. Bulk density rather than soil chemical properties dictated the performance of cocoyam in an Alfisol of southwest Nigeria. Soil quality was degraded by P + 2H. For small farms, either MR or MM is recommended while P + H is recommended for large-scale farming of cocoyam.
FACTORS ASSOCIATED WITH CONTRACEPTIVE APPROVAL AMONG RELIGIOUS LEADERS IN PAKISTAN
Authors: NASIR JAMAL ABDUL , HINDE ANDREW
Published: May 2011

Research is needed to understand the role of religion in family planning dynamics, particularly in societies where the views of religious leaders can be an important influence on the reproductive decisions of individuals. This paper attempts to describe the factors associated with approval of contraception among religious leaders in Pakistan. The data are taken from the 1999–2000 Survey of Perception of Religious Leaders about Population Welfare. Regression modelling shows that whether or not religious leaders approve of family planning is associated with their views on the ideal family size, their level of religious education, the specific religious sect to which they belong, their own knowledge and use of family planning, their exposure to television and the region of the country in which they live.
Thyroid cancer: is ethnicity relevant?
Authors: Galm T , Minhas S , Cullen R J , Griffiths H
Published: May 2011

Objective:

This study aimed to determine the age at which various ethnic groups present with thyroid cancer.

Method:

Retrospective, observational study based at three district general hospitals in the West Midlands, serving a widely diverse ethnic population. We assessed all patients undergoing an operative or core biopsy procedure for a thyroid nodule from 1 January 1998 to 31 December 2009. Only patients diagnosed with thyroid cancer were included. Variables examined included the patient's ethnic origin, sex and age at presentation.

Result:

We identified 263 patients diagnosed with thyroid cancer. Papillary carcinoma predominated. Ethnicity was categorised as Caucasian, Asian, black or other. Thyroid cancer was predominantly seen in women, in all ethnic groups. The mean age of thyroid cancer presentation was 50 years in Asians and 56 years in Caucasians, for both sexes combined. The mean presentation age of Asian women was significantly younger (46 years) than that of Caucasian women (56 years) (p = 0.01).

Conclusion:

In this population, Asian women presented with thyroid cancer at a significantly younger mean age than Caucasian women.
By-catch analysis of Argentinean prawn Artemesia longinaris (Decapoda: Penaeidae) in surrounding area of Patos Lagoon, southern Brazil: effects of different rainfall
Authors: Dumont L.F.C. , D'Incao F.
Published: May 2011

One of the most problematic fishing methods in terms of by-catch and discarding is prawn-trawling. This paper analyses the incidental catch of an artisanal trawl fleet during two discrete Artemesia longinaris fishery seasons (2002 and 2004). The fishery season of A. longinaris operates monthly and it takes place in the surrounding area of the Barra do Rio Grande. Sampling was carried out during the fishing season (April–December) always on the same artisanal trawl boat. An observer was included on-board to avoid loss of information due to discards made by the fishermen at sea. Fifty species were caught: 38 fish and 12 crustaceans. Discrete fauna abundance and composition were recorded in analysed years, with higher by-catch ratios associated with elevated rainfall and low salinity. The overall discard ratio was 1:5.6, with values ranging from 1:11.3 in 2002 to 1:2.5 in 2004. The most striking differences between both years analysed were observed during autumn (1:75 in 2002 and 1:11.30 in 2004) and winter (1:16 in 2002 and 1:0.97 in 2004), while spring presented similar values (1:8 in 2002 and 1:4 in 2004). The discard ratio estimated in terms of number showed a different pattern, presenting overall values of 1:2.24 in 2002 and 1:0.5 in 2004. Higher estuarine runoff may have increased biomass production in the surrounding area of Patos Lagoon during 2002, sustaining higher abundance of estuarine-related and marine species in the area, as well as higher mean trophic level and abundance of top-predators. Conversely, A. longinaris production was consistently lower, since this marine species does not tolerate marked reductions in salinity. In 2004, salinity was higher, associated with low rainfall and favouring A. longinaris abundance in the area. During this dry year, the target-species was dominant in samples resulting in very low by-catch ratios, especially in winter (1:0.97). The catch was mainly composed of juvenile fish, since fishery is performed in nursery grounds.
Will reconnecting ecosystems allow long-distance mammal migrations to resume? A case study of a zebraEquus burchellimigration in Botswana
Authors: Bartlam-Brooks H.L.A. , Bonyongo M.C. , Harris Stephen
Published: May 2011

Terrestrial wildlife migrations, once common, are now rare because of ecosystem fragmentation and uncontrolled hunting. Botswana historically contained migratory populations of many species but habitat fragmentation, especially by fences, has decreased the number and size of many of these populations. During a study investigating herbivore movement patterns in north-west Botswana we recorded a long-distance zebraEquus burchelli antiquorummigration between the Okavango Delta and Makgadikgadi grasslands, a round-trip distance of 588 km; 55% of 11 animals collared in the south-eastern peripheral delta made this journey. This was unexpected as, between 1968 and 2004, the migration could not have followed its present course because of the bisection of the route by a veterinary cordon fence. As little evidence exists to suggest that large-scale movements by medium-sized herbivores can be restored, it is of significant interest that this migration was established to the present highly directed route within 4 years of the fence being removed. The success of wildlife corridors, currently being advocated as the best way to re-establish ecosystem connectivity, relies on animals utilizing novel areas by moving between the connected areas. Our findings suggest that medium-sized herbivores may be able to re-establish migrations relatively quickly once physical barriers have been removed and that the success of future system linkages could be increased by utilizing past migratory routes.
Large mammals surviving conflict in the eastern forests of Afghanistan
Authors: Stevens Kara , Dehgan Alex , Karlstetter Maria , Rawan Farid , Tawhid Muhammad Ismail , Ostrowski Stephane , Ali Jan Mohammad , Ali Rita
Published: May 2011

We used transect and camera-trap surveys and DNA identification of scat samples to provide the first update since 1977 of large mammals in the montane forests of the conflict-ridden province of Nuristan in eastern Afghanistan. Nuristan contains a range of habitats from oakQuercusspp. forests to treeless alpine steppes that historically hosted populations of markhorCapra falconeri, Asiatic black bearUrsus thibetanus, grey wolfCanis lupusand common leopardPanthera pardus, among others. Surveys conducted in 2006–2009 in an area of 1,100 km2by the Wildlife Conservation Society confirmed the presence of some of these species, and also recorded the common palm civetParadoxurus hermaphroditus, previously unknown from Afghanistan; this extends the westernmost boundary for this species. The most commonly recorded species, as determined by direct sightings, scat identification or camera-trap photographs, were the Indian crested porcupineHystrix indica, red foxVulpes vulpesand a canid (grey wolf or golden jackalCanis aureus). Despite indications of significant habitat loss and unsustainable hunting, globally important species persist in the area and targeted conservation programmes are required for the protection of these species, the forests they inhabit and the surrounding communities who depend on both for their survival.