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Author: John Farley
Publisher:
ISBN:
Category : Religion
Languages : en
Pages : 318
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Author: John Farley
Publisher:
ISBN:
Category : Religion
Languages : en
Pages : 318
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Author: Cynthia R. Daniels Associate Professor of Political Science Rutgers University
Publisher: Oxford University Press, USA
ISBN: 0195343808
Category : Social Science
Languages : en
Pages : 274
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Book Description
Exposing Men examines how ideals of masculinity have long skewed our societal--and scientific--understanding of one of the pillars of male identity: reproductive health. Only with the recent public exposure of men's reproductive troubles has the health of the male body been thrown into question, and along with it deeper masculine ideals. Whereas once men's sexual and reproductive abilities were the most taboo of topics, today erectile dysfunction is a multi-billion dollar business, and magazine articles trumpet male reproductive decline with headlines such as "You're Half the Man Your Father Was." Cynthia R. Daniels casts a gimlet eye on our world of plummeting sperm counts, spiking reproductive cancers, sperm banks, and pharmacological cures for impotence in order to assess the true state of male health. What she finds is male reproductive systems damaged by toxins and war, and proof piling up that men through sperm, pass on harm to the children they father. Yet, despite the evidence that men's health, as much as women's, significantly affects the vitality of their offspring, Daniels also sees a society holding on to outdated assumptions, one in which men ignore blatant health risks as they struggle to live up to antiquated ideas of manliness.
Author: Matthias Heydt
Publisher: Springer Science & Business Media
ISBN: 3642172172
Category : Science
Languages : en
Pages : 190
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Book Description
In this thesis, Matthias Heydt applies digital in-line holography to achieve for the first time a complete three dimensional and real time motion analysis of Ulva zoospores, both in solution and in the vicinity of different surfaces. These results provide previously unknown information about the behavior and mechanism spores use to select a suitable site for settlement. This work gives deeper insight into biofouling algae and stimulates new design strategies for antifouling coatings. Furthermore, the tracking system developed during this research could be used as a new system for assessing the antifouling performance on different surfaces at very early points in time, allowing disentanglement of surface conditioning and interaction of spores with pristine chemistries.
Author: Graham Bell
Publisher: OUP Oxford
ISBN: 0191546895
Category : Science
Languages : en
Pages : 568
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Book Description
This book adopts an experimental approach to understanding the mechanisms of evolution and the nature of evolutionary processes, with examples drawn from microbial, plant and animal systems. It incorporates insights from remarkable recent advances in theoretical modelling, and the fields of molecular genetics and environmental genomics. Adaptation is caused by selection continually winnowing the genetic variation created by mutation. In the last decade, our knowledge of how selection operates on populations in the field and in the laboratory has increased enormously, and the principal aim of this book is to provide an up-to-date account of selection as the principal agent of evolution. In the classical Fisherian model, weak selection acting on many genes of small effect over long periods of time is responsible for driving slow and gradual change. However, it is now clear that adaptation in laboratory populations often involves strong selection acting on a few genes of large effect, while in the wild selection is often strong and highly variable in space and time. Indeed these results are changing our perception of how evolutionary change takes place. This book summarizes our current understanding of the causes and consequences of selection, with an emphasis on quantitative and experimental studies. It includes the latest research into experimental evolution, natural selection in the wild, artificial selection, selfish genetic elements, selection in social contexts, sexual selection, and speciation.
Author: Graham Bell
Publisher: Springer Science & Business Media
ISBN: 146155991X
Category : Science
Languages : en
Pages : 397
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Book Description
This new textbook for students taking courses in evolution is addressed to one of the most difficult questions evolutionary biology, that of selection. Covering both artificial and natural selection, the author has written a short, readable text that will appeal to students and professionals alike. how the nature of the process determines the nature of evolutionary change.
Author: John Gaylord Coulter
Publisher: Discovery Publishing House
ISBN: 9788171412136
Category : Agriculture
Languages : en
Pages : 486
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Book Description
Contents: The Plant: A General External View, The Plant: A General Internal View, Not Altogether About Plants, Roots, Stems, Leaves, Flowers, Fruits and Seeds, The Non-Vascular Plants, The Vascular Plants.
Author: Giuseppe Fusco
Publisher: Cambridge University Press
ISBN: 1108499856
Category : Medical
Languages : en
Pages : 491
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Book Description
A look into the phenomena of sex and reproduction in all organisms, taking an innovative, unified and comprehensive approach.
Author:
Publisher:
ISBN:
Category :
Languages : en
Pages : 696
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Author: Edgar Nelson Transeau
Publisher:
ISBN:
Category : Botany
Languages : en
Pages : 360
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Author: George Francis Atkinson
Publisher:
ISBN:
Category : Botany
Languages : en
Pages : 582
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Book Description
