IMIST


Votre recherche a retourné 9 résultats.

Biology of the ubiquitous house sparrow : from genes to populations / par Anderson,, Ted R. Publication : [S.l.] : Oxford University Press, USA, 2006 . 560 p. ; , After the chicken, the House Sparrow is the most widely distributed bird species in the world, occurring on all continents except Antarctica and on most human-inhabited islands. Although its Latin name is Passer domesticus, it is certainly not domesticated. In fact, it is widely regarded as a pest species and is consequently not protected in most of its extensive range. This combination of ubiquity and minimal legal protection has contributed to its wide use in studies by avian biologists throughout the world. The purpose of this book is to review and summarize the results of these global studies on House Sparrows, and to provide a springboard for future studies on the species. House Sparrows have been used to study natural selection in introduced species, circadian rhythms, and the neuroendocrine control of the avian annual cycle. One current question of considerable interest concerns the catastrophic House Sparrow population declines in several urban centers in Europe. Is the House Sparrow a contemporary canary in the mine? Other topics of broad interest include the reproductive and flock-foraging strategies of sparrows, and sexual selection and the function of the male badge in the species. Anderson also explores the role of the House Sparrow in disease transmission to humans and their domesticated animals. 24 cm. Date : 2006 Disponibilité : Exemplaires disponibles: La bibliothèque des Sciences Exactes et Naturelles (1),

Essential cell biology 2 pb / par Alberts,, Bruce. Publication : [S.l.] : Garland Science, 2003 . 860 p. ; , Essential Cell Biology , Second Edition contains basic, core knowledge about how cells work. It has a proven track record in providing students with a conceptual and accessible grounding in cell biology. The text and figures have been prepared to be easy-to-follow, accurate, clear and engaging for the introductory student. Each section follows logically from the previous one, telling a story, rather than being a collection of facts. Questions integrated throughout each chapter encourage the reader to pause, think about what they have read, and attempt to apply the new knowledge in ways that test their understanding. Based on user feedback, the Second Edition now offers increased coverage of genetics and more experimental background. It is completely up-to-date. 28 cm. Date : 2003 Disponibilité : Exemplaires disponibles: La bibliothèque des Sciences Exactes et Naturelles (1),

Molecular evolution : a phylogenetic approach / par Page,, Roderick D.M. Publication : [S.l.] : Wiley-Blackwell, 1998 . 352 p. ; , The study of evolution at the molecular level has given the subject of evolutionary biology a new significance. Phylogenetic 'trees' of gene sequences are a powerful tool for recovering evolutionary relationships among species, and can be used to answer a broad range of evolutionary and ecological questions. They are also beginning to permeate the medical sciences. In this book, the authors approach the study of molecular evolution with the phylogenetic tree as a central metaphor. This will equip students and professionals with the ability to see both the evolutionary relevance of molecular data, and the significance evolutionary theory has for molecular studies. The book is accessible yet sufficiently detailed and explicit so that the student can learn the mechanics of the procedures discussed. The book is intended for senior undergraduate and graduate students taking courses in molecular evolution/phylogenetic reconstruction. It will also be a useful supplement for students taking wider courses in evolution, as well as a valuable resource for professionals. First student textbook of phylogenetic reconstruction which uses the tree as a central metaphor of evolution. Chapter summaries and annotated suggestions for further reading. Worked examples facilitate understanding of some of the more complex issues. Emphasis on clarity and accessibility. 25 cm. Date : 1998 Disponibilité : Exemplaires disponibles: La bibliothèque des Sciences Exactes et Naturelles (1),

Neuroendocrine cells and peptidergic innervation in human and rat prostrate / par Santamaría,, Luis. Publication : [S.l.] : Springer, 2007 . 80 p. ; , The prostate hosts an important amount of neuroendocrine cells which origin and functional role need to be better addressed. These cells synthesize and deliver a number of neurosecretory substances (serotonin, neuropeptides) having regulative activities over growth, cell differentiation, and secretion and might have a remarkable influence in the development of prostatic proliferative disorders such as hyperplasia or cancer. Moreover, the autonomous nervous system seems to be relevant in the maintenance of structural and functional integrity of the prostate, a wide variety of peptidergic fibres has been described in the prostate gland; such as neuropeptide Y (NPY), vasoactive intestinal polypeptide (VIP), substance P (SP), calcitonin gene-related peptide (CGRP) nerves, etc. There is evidence about morphologic and functional relationships between neuroendocrine cells and prostate nerve fibres, resulting in a neuro-hormonal system that might modulate the androgenic action on the prostate. Using immunohistochemistry and stereologic quantification, the authors of the present study deal with the demonstration that the neuroendocrine cells population from transition zone of the human prostate was greater than in both central and peripheral regions, and this can be put in relation to the genesis of BPH. Furthermore, they observed that the neuroendocrine cells and the peptidergic innervation of rat prostate might be influenced by aging and androgenic status. Other factors, as pharmacological castration, or prolactin action, might be also modulate the neuroendocrine-peptidergic system. 23 cm. Date : 2007 Disponibilité : Exemplaires disponibles: La bibliothèque des Sciences Exactes et Naturelles (1),

Plasma source mass spectrometry : current trends and future developments / par Bandura,, J G Holland D R. Publication : [S.l.] : Royal Society of Chemistry, 2006 . 356 p. ; , Atomic spectrometry has exciting new bio-analytical horizons open to it, principally through the developments in the capabilities of ICP-MS coupled with the inventiveness of experimentalists. This is reflected in the use of the technique for ion-, capillary electrophoresis-, liquid- and gas-chromatographic separation in biological applications, as reported in this book. Traditional (environmental, semiconductor, geological and clinical) applications are also well-represented. In addition, recent and future developments in sample introduction devices, multicollector sector, reaction cells and collision cells instruments, as well as co-existence, divergence and potential convergence of atomic and biomolecular mass spectrometries, are discussed. Reflecting the current state of practical ICP-MS and drawing together the latest developments in the field, Plasma Source Mass Spectrometry: Current Trends and Future Developments is ideal for university researchers and laboratory practitioners. It will be of interest to all those involved in the development and application of this technique. 24 cm. Date : 2006 Disponibilité : Exemplaires disponibles: La bibliothèque des Sciences Exactes et Naturelles (1),

The Geometry of biological time / par Winfree, Arthur T. Publication : [S.l.] : Springer, 2001 . 808 p. ; , From cell division to heartbeat, clocklike rhythms pervade the activities of every living organism. The cycles of life are ultimately biochemical in mechanism but many of the principles that dominate their orchestration are essentially mathematical. The Geometry of Biological Time describes periodic processes in living systems and their non-living analogues in the abstract terms of nonlinear dynamics. Enphasis is given in phase singularities, waves, and mutual synchronization in tissues composed of many clocklike units. Also provided are descriptions of the best-studied experimental systems such as chemical oscillators, pacemaker neurons, circadian clocks, and excitable media organized into biochemical and bioelectrical wave patterns in two and three dimensions. No theoretical background is assumed; the required notions are introduced through an extensive collection of pictures and easily understood examples. This extensively updated new edition incorporates the fruits of two decades' further exploration guided by the same principles. Limit cycle theories of circadian clocks are now applied to human jet lag and are understood in terms of the molecular genetics of their recently discovered mechanisms. Supercomputers reveal the unforeseen architecture and dynamics of three-dimensional scroll waves in excitable media. Their role in life-threatening electrical aberrations of the heartbeat is exposed by laboratory experiments and corroborated in the clinic. These developments trace back to three basic mathematical ideas. 24 cm. Date : 2001 Disponibilité : Exemplaires disponibles: La bibliothèque des Sciences Exactes et Naturelles (1),

Vous ne trouvez pas ce que vous cherchez ?
© Tous droits résérvés IMIST/CNRST
Angle Av. Allal Al Fassi et Av. des FAR, Hay Ryad, BP 8027, 10102 Rabat, Maroc
Tél:(+212) 05 37.56.98.00
CNRST / IMIST

Propulsé par Koha