Wednesday, 9 March 2011

Dynamics of the Mammalian Sperm Head: Modifications and Maturation Events From Spermatogenesis to Egg Activation (Advances in Anatomy, Embryology and Cell Biology)



Dynamics of the Mammalian Sperm Head: Modifications and Maturation Events From Spermatogenesis to Egg Activation (Advances in Anatomy, Embryology and Cell Biology)
Kiyotaka Toshimori | 2009-06-18 00:00:00 | Springer | 98 | Urology

Mammalian spermatozoa have complex structures. The structure-function relationship of sperm has been studied from various viewpoints. Accumulated evidence has shown that the sperm components undergo sequential changes from the beginning of spermatogenesis to the time of fertilization/embryogenesis. Structural analyses have been performed using various new techniques of light and electron microscopy as well as immunohistochemistry and immunocytochemistry in combination with specific probes such as antibodies against sperm components. Recently developed gene-manipulation techniques have accelerated investigations on the events that govern the relationship between the structure and molecular components of sperm. In addition, animal models with gene manipulations have been shown to exhibit various morphological and functional abnormalities that lead to infertility.

In humans, male infertility is caused by a number of factors such as the external environment, nutrient changes, genotoxins, and mutagens. These factors affect not only the development of germ cells during spermatogenesis but also the functions of mature sperm, ultimately impairing fertilization or embryogenesis. Typical phenotypes of impaired fertilization or embryogenesis are visible in conditions such as azoospermia, oligozoospermia, and teratozoospermia, which have been induced in model animals with gene deficiencies. Thus, comparative analyses of the phenotypes expressed by model animals carrying gene mutations and infertile human patients should be performed in relation to the normal (natural) fertilization process to clarify the etiology of infertility due to male factors.

In this book, I discuss the events that occur in the normal sperm head and govern the structure-function relationship from the time of spermatogenesis to that of fertilization or egg activation. In this regard, I describe dynamic modifications and maturation events occurring in sperm-head components and compare the outcomes of these events with the outcomes of their failure.



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Learning ASP.NET 3.5



Learning ASP.NET 3.5
| 2008-07-15 00:00:00 | | 0 | ASP.NET


With this book, you will learn how to create engaging and interactive web applications using the latest version of the world's most popular web development platform: ASP.NET with AJAX, built on the productivity-enhancing features of Visual Studio 2008. All you need to get started is a basic knowledge of HTML and a desire to produce professional quality websites. Learning ASP.NET 3.5 introduces new skills in each new chapter and offers fully annotated and fully functional examples that you can put to work immediately. Each chapter adds detailed summaries, practice questions to ensure comprehension, and exercises so you can apply what you've learned to new situations. Written by the bestselling author team of Jesse Liberty, Dan Hurwitz, and Brian MacDonald, Learning ASP.NET 3.5 offers complete, up-to-date coverage of ASP.NET 3.5 and AJAX. The book includes: Chapters that are designed as a series of tutorials on different aspects of web development Examples in each chapter that illustrate how a new concept works. Different chapters feature either a single running example with several stages, or a series of smaller examples A single large example in the final chapter offers that uses everything the reader has learned VB, JavaScript, and SQL Cheat Sheet sidebars to help readers with no little or no background with those topics AJAX-style fully integrated into ASP.NET programming -- the way it should be taught and used If you want to get up to speed with the world's most popular web development technology, Learning ASP.NET 3.5 is the best resource for the job.

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he Dialect of the Tribe: Speech and Community in Modern Fiction



he Dialect of the Tribe: Speech and Community in Modern Fiction
Oxford University Press | 1987-01-01 00:00:00 | | 1 | Languages (Other)
The bold careers of Henry James, D.H. Lawrence, James Joyce, and Samuel Beckett--writers with profoundly unsettled cultural identities--spark Margery Sabin's investigation of values carried through inherited forms of speech. The Dialect of the Tribe offers fresh readings of such great novels as The Golden Bowl, Women in Love, Ulysses, and the Beckett trilogy which illustrate how complex attitudes toward the speech forms of language inform the most varied social, psychological, and aesthetic structures in modern fiction. Sabin explores the powerful tension in these writers between appreciation for the resources of common speech in English and contrary longings for a freedom associated with abstraction, system, and foreign or private language. Her own critical procedures transcend restrictive and reductive polarizations, as she lucidly analyzes the biases of both the Anglo-American critical tradition and the challenge to that tradition in French literary theory and practice.

Written in a jargon-free, accessible style, The Dialect of the Tribe argues that the ambiguous cultural positions of the great modern novelists in English emerge as a major source of their strength--the rich traditions of the English language give enlivening power to writers also remarkable for their drive toward radical independence and skepticism.
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Information Security : Principles and Practice



Information Security : Principles and Practice
| 2005-10-26 00:00:00 | | 0 | Information Security


Your expert guide to information security

As businesses and consumers become more dependent on complex multinational information systems, the need to understand and devise sound information security systems has never been greater. This title takes a practical approach to information security by focusing on real-world examples. While not sidestepping the theory, the emphasis is on developing the skills and knowledge that security and information technology students and professionals need to face their challenges. The book is organized around four major themes:
* Cryptography: classic cryptosystems, symmetric key cryptography, public key cryptography, hash functions, random numbers, information hiding, and cryptanalysis
* Access control: authentication and authorization, password-based security, ACLs and capabilities, multilevel and multilateral security, covert channels and inference control, BLP and Biba's models, firewalls, and intrusion detection systems
* Protocols: simple authentication protocols, session keys, perfect forward secrecy, timestamps, SSL, IPSec, Kerberos, and GSM
* Software: flaws and malware, buffer overflows, viruses and worms, software reverse engineering, digital rights management, secure software development, and operating systems security

Additional features include numerous figures and tables to illustrate and clarify complex topics, as well as problems-ranging from basic to challenging-to help readers apply their newly developed skills. A solutions manual and a set of classroom-tested PowerPoint(r) slides will assist instructors in their course development. Students and professors in information technology, computer science, and engineering, and professionals working in the field will find this reference most useful to solve their information security issues.

An Instructor's Manual presenting detailed solutions to all the problems in the book is available from the Wiley editorial department.

An Instructor Support FTP site is also available.

User review
An Excellent Companion to Bishops Book
While Matt Bishop's book (Computer Security, Art and Science) is considered the standard by many professors, I think students will find that Mark Stamp's book provides much more practical utility. Here's what Stamp has that Bishop doesn't:


1.) More readable writing style.


2.) Non-essential theory and rigor removed.


3.) Some less traditional but interesting topics (ex: CAPTCHAs, DRM).


A few things that Bishop has that Stamp doesn't:


1.) Broader range of topics covered.


2.) Classic proofs and theory that Stamp omits for succinctness.


Let's be clear though. One text is not better than the other-- the authors simply have different aims. I suggest that a student use Stamp's book to ease into Information Security, and then to go Bishop when more information is required. For example, in my introductory course to Information Assurance, I used Stamp's book to answer 90% of all questions quickly and completely and Bishop's book to tackle the remaining 10%. If I ever get into the theory side of IA, I'll probably have to use Bishop more, but Stamp works great in most situations.

User review
Cryptography
Great buy.


But i must warn you, its very advanced!


I used this as my text, in a graduate class, It was very helpful because my professor was able to explain the `hard stuff` to me.


But its good, it sets the 'motion' for research on topics discussed in the book.




User review
Good, Readable Primer on Information Security
This is a very readable primer on information security that address a number of topics including symmetric key crypto, public key crypto, hash functions, cryptanalysis, authentication, authorization, software anomalies, software insecurity, malware, and operating systems. I recommend this book.

User review
A very well written book!
If I had to have only one book on information security, this would be the book!


Without trying to be encyclopedic, Professor Stamp gives a panoramic view of four key areas in information security: cryptography, access control, protocols, and software. Within each of these four parts, relevant and diverse topics are discussed and studied. The breadth and depth of coverage is appropriate for both the general reader as well as for the expert.


Topics in the book include: symmetric key crypto, public key crypto, hash functions, cryptanalysis, authentication, authorization, authentication protocols, real-world security protocols, software flaws and malware, insecurity in software, operating systems and security.


The book reads well and does not have the `dry flavor`, so often found in other books of this type. I recommend this book, without reservation!

User review
Excellent security text
Dr. Stamp touches many of the widely used and implemented security algorithms and techniques in today's industry. His clear and concise diagrams, examples, and thought provoking questions allow the reader to get a clear overview of the workings (positive and negative) of security technology. Mark Stamp has gathered all relevant information from a wide range of sources to produce an essential guide for information security. totally sweet


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Abi Titmuss Official Calendar 2007


Abi Titmuss Official Calendar 2007
| 2007-01-01 00:00:00 | | 13 | Sex
Abi Titmuss Official Calendar 2007
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The Impact of Equipment Availability and Reliability on Mission Outcomes: An Initial Look



The Impact of Equipment Availability and Reliability on Mission Outcomes: An Initial Look
Charles T. Kelley | 1900-01-01 00:00:00 | Rand Arroyo Center | 49 | Military Science

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Supercharging, Turbocharging and Nitrous Oxide Performance (Motorbooks Workshop)



Supercharging, Turbocharging and Nitrous Oxide Performance (Motorbooks Workshop)
Earl Davis and Diane Davis | 1900-01-01 00:00:00 | Motorbooks; First edition (January 28, 2002) | 160 | Mechanical Engineering
For hardcore DIY enthusiasts, one of the more popular means of increasing an engines output is with the use of forced induction systemssuperchargers, turbochargers and nitrous-oxide set-ups that pressurize the engines fuel-air mixture.
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