A. Definitions of Transformation in vitro When normal tissues or organs are explanted to conditions favoring the growth of cells as individual units ("cell culture"), the original cell population undergoes a large variety of modifications. Only a minority of the cells will thrive and multiply and within a rather short period of time, the complex composition of the original explant is replaced by a much simplified one of only a few recogniz ably different cell types. With most organs fibroblast-like cells survive longest and outgrow other types. This is then a stable state of affairs for many gener ations. This treatise will not discuss whether this simplification and stabilization represents selection of certain pre-existing cell types or a modification of cells into only a few recognizably different categories; for an excellent review see HARRIS. (1964). Table 1. Terminology Employed to Describe Transformations in vitro Type of transformation Essential features Irregular growth Lack of contact inhibition of cell membrane movement ("ruffled membranes") between juxtaposed cells Unrestrained growth Deficient inhibition of the cell cycle (mitosis) in a crowded culture Infinite growth Capacity of cells to undergo an infinite number of di visions (formation of established cell lines) Cells may depart from this typical behavior in numerous ways involving for instance cellular morphology, immunology, chromosomes or metabolism. Such changes have, sometimes rather vaguely, been called "transformations". This is unprecise and the term "transformation" will here be used exclusively to indicate disturbances in cell growth related to neoplasia.
When normal tissues or organs are explanted to conditions favoring the growth of cells as individual units (cell culture) the original cell population undergoes a large variety of modification. Only a minory of the cells with thrive and multiply and within a rather short period of time, the complex composition of the original explant is replaced by a much simplified one and only a few recognizably different cell types.
A. Definitions of Transformation in vitro When normal tissues or organs are explanted to conditions favoring the growth of cells as individual units ("cell culture"), the original cell population undergoes a large variety of modifications. Only a minority of the cells will thrive and multiply and within a rather short period of time, the complex composition of the original explant is replaced by a much simplified one of only a few recogniz ably different cell types. With most organs fibroblast-like cells survive longest and outgrow other types. This is then a stable state of affairs for many gener ations. This treatise will not discuss whether this simplification and stabilization represents selection of certain pre-existing cell types or a modification of cells into only a few recognizably different categories; for an excellent review see HARRIS. (1964). Table 1. Terminology Employed to Describe Transformations in vitro Type of transformation Essential features Irregular growth Lack of contact inhibition of cell membrane movement ("ruffled membranes") between juxtaposed cells Unrestrained growth Deficient inhibition of the cell cycle (mitosis) in a crowded culture Infinite growth Capacity of cells to undergo an infinite number of di visions (formation of established cell lines) Cells may depart from this typical behavior in numerous ways involving for instance cellular morphology, immunology, chromosomes or metabolism. Such changes have, sometimes rather vaguely, been called "transformations". This is unprecise and the term "transformation" will here be used exclusively to indicate disturbances in cell growth related to neoplasia.
The mining industry has experienced important improvements with regard to its safety record and work environment. But there is still room for further improvement and the mining industry now faces the challenge of securing a future workforce: The current workforce is aging, and mining work increasingly requires a more qualified workforce. Designing Ergonomic, Safe, and Attractive Mining Workplaces seeks to give an understanding of what must be considered in the design of mining workplaces. By reviewing and discussing the historic and current development of the mining industry as well as problems related to the safety, ergonomics, and attractiveness of mining workplaces, it demonstrates that the challenges facing the mining industry often need to be solved on a case-to-case basis. The processes through which these issues are managed are of significant importance. To facilitate a proactive approach, the book covers the principles of systematic work environment management, together with examples of methods for risk management and work environment monitoring. It introduces a systematic and iterative design and planning method for the mining industry. This method acknowledges that all relevant stakeholders must be able to influence the design of ergonomic, safe, and attractive mining workplaces. Features Takes a holistic and sociotechnical approach to current and future problems of the mining industry, which normally are dealt with in isolation or through technology Reviews historic, current, and future issues in the mining industry with regards to workplace attractiveness, health, safety, mechanization, automation, and work organization Provides several examples of these issues and attempts to address them (successfully and unsuccessfully) Covers the principles of systematic work environment management together with examples of methods for risk management and work environment monitoring for pro-actively dealing with work environment issues Introduces a systematic and iterative design and planning method for the mining industry that aims to avoid problems of traditional planning approaches and increase stakeholder and employee participation
This volume is the first to describe all clinically and experimental relevant aspects of primary and secondary brain stem lesions important to clinicians. It contains a detailed description of the computer-tomographical and morphological changes of the cerebral cisterns in acutely and chronically increased intracranial pressure. The prognostic value of clinical parameters of primary and secondary brain stem lesions is demonstrated. The possibilities of assessing the clinical course by computer-aided evaluation are presented. In addition to that, comprehensive view of morphological, radiological and clinical findings, extensive investigation concerning blink reflex (BR) and auditory evoked brain stem potentials (BAEP) supply highly relevant functional aspects of those lesions. The effects of raised intracranial pressure upon BR, BAEP as well as upon cerebral blood flow and focal flow in different brain areas were studied in animal experiments and reveal new and fascinating conclusions. Based on these investigations, a mathematical model following modern concepts of system analysis was developed. The model includes the intracranial system, autoregulation of cerebral flow (cardiovascular components) and the short-time behaviour of arterial blood pressure regulation.
This is the most comprehensive account to date of literary politics in Nazi Germany and of the institutions, organizations and people who controlled German literature during the Third Reich. Barbian details a media dictatorship-involving the persecution and control of writers, publishers and libraries, but also voluntary assimilation and pre-emptive self-censorship-that began almost immediately under the National Socialists, leading to authors' forced declarations of loyalty, literary propaganda, censorship, and book burnings. Special attention is given to Nazi regulation of the publishing industry and command over all forms of publication and dissemination, from the most presitigious publishing houses to the smallest municipal and school libraries. Barbian also shows that, although the Nazis censored books not in line with Party aims, many publishers and writers took advantage of loopholes in their system of control. Supporting his work with exhaustive research of original sources, Barbian describes a society in which everybody who was not openly opposed to it, participated in the system, whether as a writer, an editor, or even as an ordinary visitor to a library.
Fascia in Sport and Movement, Second edition is a multi-author book with contributions from 51 leading teachers and practitioners across the entire spectrum of bodywork and movement professions. It provides professionals from all bodywork and movement specialisms with the most up-to-date information they need for success in teaching, training, coaching, strengthening, tackling injury, reducing pain, and improving mobility. The new edition has 21 new chapters, and chapters from the first edition have been updated with new research. This book is an essential resource for all bodywork professionals - sports coaches, fitness trainers, yoga teachers, Pilates instructors, dance teachers and manual therapists. It explains and demonstrates how an understanding of the structure and function of fascia can inform and improve your clinical practice. The book's unique strength lies in the breadth of its coverage, the expertise of its authorship and the currency of its research and practice base.
Immunodermatology is a field covering the majority of skin diseases, including the most prevalent onesin the general population. The Second Edition of Skin Immune System (SIS) discusses immune-mediated skin diseases and disease groups in which the SIS plays a role. It covers major findings in immunophysiology and immunopathology that have occurred since the introduction of the First Edition in 1990. As the subtitle indicates, the Second Edition adds a new emphasis on cutaneous immunology, and also includes new information on immune-based therapeutic interventions and methods, such as phototherapy and the immunological therapy of skin cancer. The book contains Part I, with introductory chapters; Part II, with descriptions of the cellular elements; and Part III, which describes the humoral and molecular components of SIS. Part IV follows to integrate the facts described in Parts II and III into concepts of pathophysiology. It contains a number of concepts entitled "response patterns" that describe how the constitutional elements of SIS work together. New in this edition are the descriptions of immunodermatological diseases individually described in Part V. Part VI is also all new and summarizes principles of immunotherapy.
Der Band enthalt 36 Beitrage in deutscher, franzosischer und englischer Sprache. Die Themenvielfalt reicht von der judischen Gemeinde in Lyon zur Zeit der Karolinger, Giftschriften des spaten Mittelalters und digitale Editionsprojekte mittelalterlicher Urkunden uber Ritter, Feldherren und Schauspieler der Fruhen Neuzeit, die Aufnahme der Hugenotten im Reich und franzosische Adelsmemoiren des 17. Jahrhunderts bis zu den Beitragen einer Tagung uber die Vorgeschichte des Ersten Weltkriegs.
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