Rheology is, by common consent, a difficult subject and some of the theoretical components are often viewed as being of prohibitive complexity by scientists without a strong mathematical background. There are also the difficulties inherent in any multidisciplinary science like rheology for those with a specific training. Therefore, newcomers to the field are sometimes discouraged, and for them the existing texts on the subject - some of which are outstanding - are of limited assistance because of their depth of detail and highly mathematical nature.
This book introduces the subject of rheology in terms understandable to non-experts and describes the application of rheological principles to many industrial products and processes. It provides a simple but authoritative guide which shows clearly how mathematics, physics and chemistry have contributed to the development of rheology. The generic features of all liquid-like materials are summarised, i.e. viscosity, linear viscoelasticity, normal stresses and extensional viscosity. Particular systems are then discussed, i.e. polymeric liquids and suspensions. The final chapter gives an outline of the theoretical advances which have been made. Consistent notation and nomenclature have been used throughout the book, and the key textbooks and publications which will enable the reader to follow up particular topics are listed.

Unlike some other reproductions of classic texts (1) We have not used OCR(Optical Character Recognition), as this leads to bad quality books with introduced typos. (2) In books where there are images such as portraits, maps, sketches etc We have endeavoured to keep the quality of these images, so they represent accurately the original artefact. Although occasionally there may be certain imperfections with these old texts, we feel they deserve to be made available for future generations to enjoy.

Skin is a multifarious image in medieval culture: the material basis for forming a sense of self and relation to the world, as well as a powerful literary and visual image. Treating key medieval English texts and traditions, from romance and exemplum to technical treatises and encyclopedias, the essays in this collection show the subject of skin to be a peculiarly resistant and revealing mode of reading texts, highlighting not the hierarchy, but the interdependency of the senses, and laying bare the intimacy of the human, the animal, the divine and the monstrous in medieval natural philosophy, pastoralia and ethics, and the literary imagination.

The science of rheology remains a mystery to most people, even to some scientists. Some respectable dictionaries have been quite cavalier in their attitude to the science, the small Collins Gem dictionary, for example, being quite happy to inform us that a Rhea is an three-toed South American ostrich, whilst at the same time offering no definition of rheology. This maybe due to the fact that the science is interdisciplinary and does not fit well into any one of the historical disciplines.

This book contains an in-depth study of the history of rheology, beginning with the statements of Heraclitus, Confucius and the prophetess Deborah. It also emphasises the distinctive contributions of Newton, Hooke, Boltzmann, Maxwell, Kelvin and others, and culminates in the flourishing activity in the second half of this century.

Features of this book:

Is the only book on the subject

Prevents the rediscovery of results already made

Will educate newcomers to the field to the rich heritage in even a relatively recent science like rheology.

The book will be invaluable for science and scientific history libraries and will also be of interest to rheologists, and scientists working in the polymer processing, food, lubrication, detergent and similar industries."

Experts in rheology and polymer processing present up-to-date, fundamental and applied information on the rheological properties of polymers, in particular those relevant to processing, contributing to the physical understanding and the mathematical modelling of polymer processing sequences. Basic concepts of non-Newtonian fluid mechanics, micro-rheological modelling and constitutive modelling are reviewed, and rheological measurements are described. Topics with practical relevance are debated, such as linear viscoelasticity, converging and diverging flows, and the rheology of multiphase systems. Approximation methods are discussed for the computer modelling of polymer melt flow. Subsequently, polymer processing technologies are studied from both simulation and engineering perspectives. Mixing, crystallization and reactive processing aspects are also included. Audience: An integrated and complete view of polymer processing and rheology, important to institutions and individuals engaged in the characterisation, testing, compounding, modification and processing of polymeric materials. Can also support academic polymer processing engineering programs.

Since the heyday of research on aggression in the late 1960s, developments in several varied areas had enabled us to take a new look at this important though difficult topic. Recent findings and sophisticated new techniques in behavior genetic analysis at the time had made it possible not only to enhance our understanding of the genetic mechanisms underlying aggressive behavior, but also to provide some reasonable suggestions as to the role of aggression in evolution. Originally published in 1983, there had been significant advances in genetic and neural research and a much more sophisticated and heuristic approach to the measurement and conceptualization of aggressive behavior had developed. The ten chapters in this volume provide a thorough overview of these new approaches and methodologies. There are also suggestions regarding the scope of future research on aggressive behavior, since much of what is presented describes the ongoing research activities of the contributors. This book is divided into four sections: The first provides a systematic foundation for research on aggression, and a description of some of the newer strategies for research in this area; the second concerns quantitative genetic analyses, selection data from both wild and laboratory populations, and situational determinants of aggressive behavior; the third section details new and exciting findings in neurochemical and neuropharmacological effects; and the last section contains a chapter that provides a summary and synthesis of all that has come before.

This literally "refreshing" collection is based on the notion that the future of bioethics is inseparable from its past. Seminal works provide a unique and relatively unexplored vehicle for investigating not only where bioethics began, but where it may be going as well. In this volume, a number of the pioneers in bioethics - Tom Beauchamp, Lisa Sowle Cahill, James Childress, Charles E. Curran, Patricia King, H. Tristram Engelhardt, William F. May, Edmund D. Pellegrino, Warren Reich, Robert Veatch and LeRoy Walters - reflect on their early work and how they fit into the past and future of bioethics. Coming from many disciplines, generations, and perspectives, these trailblazing authors provide a broad overview of the history and current state of the field. Invaluable to anyone with a serious interest in the development and future of bioethics, at a time when new paths into medical questions are made almost daily, "The Story of Bioethics" is a Baedeker beyond compare.

Since the heyday of research on aggression in the late 1960s, developments in several varied areas had enabled us to take a new look at this important though difficult topic. Recent findings and sophisticated new techniques in behavior genetic analysis at the time had made it possible not only to enhance our understanding of the genetic mechanisms underlying aggressive behavior, but also to provide some reasonable suggestions as to the role of aggression in evolution. Originally published in 1983, there had been significant advances in genetic and neural research and a much more sophisticated and heuristic approach to the measurement and conceptualization of aggressive behavior had developed. The ten chapters in this volume provide a thorough overview of these new approaches and methodologies. There are also suggestions regarding the scope of future research on aggressive behavior, since much of what is presented describes the ongoing research activities of the contributors. This book is divided into four sections: The first provides a systematic foundation for research on aggression, and a description of some of the newer strategies for research in this area; the second concerns quantitative genetic analyses, selection data from both wild and laboratory populations, and situational determinants of aggressive behavior; the third section details new and exciting findings in neurochemical and neuropharmacological effects; and the last section contains a chapter that provides a summary and synthesis of all that has come before.

Experts in rheology and polymer processing present up-to-date, fundamental and applied information on the rheological properties of polymers, in particular those relevant to processing, contributing to the physical understanding and the mathematical modelling of polymer processing sequences. Basic concepts of non-Newtonian fluid mechanics, micro-rheological modelling and constitutive modelling are reviewed, and rheological measurements are described. Topics with practical relevance are debated, such as linear viscoelasticity, converging and diverging flows, and the rheology of multiphase systems. Approximation methods are discussed for the computer modelling of polymer melt flow. Subsequently, polymer processing technologies are studied from both simulation and engineering perspectives. Mixing, crystallization and reactive processing aspects are also included. Audience: An integrated and complete view of polymer processing and rheology, important to institutions and individuals engaged in the characterisation, testing, compounding, modification and processing of polymeric materials. Can also support academic polymer processing engineering programs.

Skin is a multifarious image in medieval culture: the material basis for forming a sense of self and relation to the world, as well as a powerful literary and visual image. This book explores the presence of skin in medieval literature and culture from a range of literary, religious, aesthetic, historical, medical, and theoretical perspectives.

schlage. Ob man diese Reaktion mit ihrem klinischen Effekt als physiologisch oder pathologisch ansieht, hangt davon ab, mit welchem Pradikat eine solche offensichtlich durch die individueIle Entwicklungs-und Alterungskurve bedingte, pratraumatische Voralterung bedacht wird. Uns scheinen diese Verlaufe, denen weitere Untersuchungen zu widmen sein werden, besonders reizvoIl, da sie die beiden Komponenten unseres Themas wieder in einer anderen Art des Zusammen- wirkens zeigen. Unser Untersuchungsgang steht an einem vorlaufigen Ende. Der Kundige weiB, daB wir noch weit vom Verstandnis aIler Erscheinungen bei Hirntraumen im h6heren Lebensalter entfernt sind. Sowohl das Trauma wie das von ihm be- troffene alternde Hirn bergen jedes fUr sich noch geniigend unbekannte Eigen- schaften, die im FaIle des Hirntraumas nicht abnehmen, sondern zunehmen werden. Die physiko-chemischen Untersuchungen am alternden tierischen und mensch- lichen Hirngewebe haben aber zu Ergebnissen gefUhrt, die eine Grundlage fiir die Bearbeitung dieses uniibersichtlichen, meist gemiedenen Gebietes abgeben. Es ist ein besonders gliicklicher Umstand, daB in den VorsteIlungen um die Commotio- wirkung am Hirngewebe gerade diese untersuchte Reaktionsart von besonderer Bedeutung ist. Nur so wurde es moglich, die alternsabhangigen Anderungen dieser geweblichen Reaktion und die aus der klinischen Beobachtung ableitbaren Zu- standsbilder und Verlaufe in Beziehung zueinander zu setzen. Wenn die morpho- logische Altersmetabolie des Hirngewebes die Absicht zu der so dringend gebotenen klinischen Untersuchung stiitzte, so erfuhren die klinischen Ableitungen im alters- abhangigen geweblichen Reaktionswandel nahezu eine Bestatigung. Der klinische Eindruck von der groBeren Differenziertheit der posttraumatischen Zustandsbilder und deren Abhangigkeit vom Hirnalter hat sich im Prinzip als berechtigt erwiesen.