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Virion

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RETRO VIRION

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A man spirals into madness, believing he\'s in touch with prehistoric animals, the unborn, and the dead. The world around him teeters on a knife-edge, thre ...

  • L'auteur : ,
  • Editeur: Russell Kightley
  • ISBN: 0645159522
  • Genre: Fiction
  • Nombre de pages:
  • Langue: French/English
  • Vues: 335
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Détails: A man spirals into madness, believing he's in touch with prehistoric animals, the unborn, and the dead. The world around him teeters on a knife-edge, threatened by a nightmare virus that destroys everything in its path. The unreliable narrator, who's immune to the plague, takes you on a journey into the broken heart of existence, to a fractured consciousness as big as the universe itself, and as small as one man's mind. But is he really mad or is he right? Or is he the hallucinating survivor of a devastating pandemic?


Advances in Virion Research and Application: 2011 Edition

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Advances in Virion Research and Application: 2011 Edition is a ScholarlyPaper™ that delivers timely, authoritative, and intensively focused information a ...

  • L'auteur : ,
  • Editeur: ScholarlyEditions
  • ISBN: 1464951691
  • Genre: Medical
  • Nombre de pages: 24
  • Langue: French/English
  • Vues: 746
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Détails: Advances in Virion Research and Application: 2011 Edition is a ScholarlyPaper™ that delivers timely, authoritative, and intensively focused information about Virion in a compact format. The editors have built Advances in Virion Research and Application: 2011 Edition on the vast information databases of ScholarlyNews.™ You can expect the information about Virion in this eBook to be deeper than what you can access anywhere else, as well as consistently reliable, authoritative, informed, and relevant. The content of Advances in Virion Research and Application: 2011 Edition has been produced by the world’s leading scientists, engineers, analysts, research institutions, and companies. All of the content is from peer-reviewed sources, and all of it is written, assembled, and edited by the editors at ScholarlyEditions™ and available exclusively from us. You now have a source you can cite with authority, confidence, and credibility. More information is available at http://www.ScholarlyEditions.com/.


Advances in Virion Research and Application: 2012 Edition

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Advances in Virion Research and Application / 2012 Edition is a ScholarlyBrief™ that delivers timely, authoritative, comprehensive, and specialized infor ...

  • L'auteur : ,
  • Editeur: ScholarlyEditions
  • ISBN: 1481614614
  • Genre: Science
  • Nombre de pages: 51
  • Langue: French/English
  • Vues: 1025
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Détails: Advances in Virion Research and Application / 2012 Edition is a ScholarlyBrief™ that delivers timely, authoritative, comprehensive, and specialized information about Virion in a concise format. The editors have built Advances in Virion Research and Application / 2012 Edition on the vast information databases of ScholarlyNews.™ You can expect the information about Virion in this eBook to be deeper than what you can access anywhere else, as well as consistently reliable, authoritative, informed, and relevant. The content of Advances in Virion Research and Application / 2012 Edition has been produced by the world’s leading scientists, engineers, analysts, research institutions, and companies. All of the content is from peer-reviewed sources, and all of it is written, assembled, and edited by the editors at ScholarlyEditions™ and available exclusively from us. You now have a source you can cite with authority, confidence, and credibility. More information is available at http://www.ScholarlyEditions.com/.


Advances in Virion Research and Application: 2013 Edition

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Advances in Virion Research and Application: 2013 Edition is a ScholarlyBrief™ that delivers timely, authoritative, comprehensive, and specialized inform ...

  • L'auteur : ,
  • Editeur: ScholarlyEditions
  • ISBN: 1481696653
  • Genre: Medical
  • Nombre de pages: 42
  • Langue: French/English
  • Vues: 1471
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Détails: Advances in Virion Research and Application: 2013 Edition is a ScholarlyBrief™ that delivers timely, authoritative, comprehensive, and specialized information about ZZZAdditional Research in a concise format. The editors have built Advances in Virion Research and Application: 2013 Edition on the vast information databases of ScholarlyNews.™ You can expect the information about ZZZAdditional Research in this book to be deeper than what you can access anywhere else, as well as consistently reliable, authoritative, informed, and relevant. The content of Advances in Virion Research and Application: 2013 Edition has been produced by the world’s leading scientists, engineers, analysts, research institutions, and companies. All of the content is from peer-reviewed sources, and all of it is written, assembled, and edited by the editors at ScholarlyEditions™ and available exclusively from us. You now have a source you can cite with authority, confidence, and credibility. More information is available at http://www.ScholarlyEditions.com/.


Virus Structure

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Virus Structure covers the full spectrum of modern structural virology. Its goal is to describe the means for defining moderate to high resolution structur ...

  • L'auteur : ,
  • Editeur: Elsevier
  • ISBN: 0080493777
  • Genre: Science
  • Nombre de pages: 543
  • Langue: French/English
  • Vues: 1535
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Détails: Virus Structure covers the full spectrum of modern structural virology. Its goal is to describe the means for defining moderate to high resolution structures and the basic principles that have emerged from these studies. Among the topics covered are Hybrid Vigor, Structural Folds of Viral Proteins, Virus Particle Dynamics, Viral Gemone Organization, Enveloped Viruses and Large Viruses. Covers viral assembly using heterologous expression systems and cell extracts Discusses molecular mechanisms in bacteriophage T7 procapsid assembly, maturation and DNA containment Includes information on structural studies on antibody/virus complexes


Physical Virology

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This book explores a new challenge in virology: to understand how physical properties of virus particles (virions) and viruses (infected cells) affect the ...

  • L'auteur : Urs F. Greber
  • Editeur: Springer
  • ISBN: 303014741X
  • Genre: Medical
  • Nombre de pages: 235
  • Langue: French/English
  • Vues: 917
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Détails: This book explores a new challenge in virology: to understand how physical properties of virus particles (virions) and viruses (infected cells) affect the course of an infection. Insights from the emerging field of physical virology will contribute to understanding of the physical nature of viruses and cells, and will open new ways for anti-viral interference. Nine chapters and an editorial written by physicists, chemists, biologists and computational experts describe how virions serve as trail blazers in uncharted territory of cells. The authors outline how particles change in composition as they interact with host cells. Such virus dynamics are crucial for virus entry into cells and infection. It influences the modern concepts of virus-host interactions, viral lineages and evolution. The volume gives numerous up-to-date examples of modern virology and provides a fascinating read for researchers, clinicians and students in the field of infectious diseases.


The Retroviridae

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depth overview of the retrovirus family. I have greatly enjoyed and learned from this experience. Each chapter is an excellent introduction to the topic co ...

  • L'auteur : Jay A. Levy
  • Editeur: Springer Science & Business Media
  • ISBN: 1489917217
  • Genre: Medical
  • Nombre de pages: 670
  • Langue: French/English
  • Vues: 794
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Détails: depth overview of the retrovirus family. I have greatly enjoyed and learned from this experience. Each chapter is an excellent introduction to the topic covered and provides a good foundation for further work in the field. Jay A. Levy University of California School of Medicine San Francisco, California REFERENCES Brown, E. W., Yuhki, N., Packer, C., and O'Brien, S. J., 1994, A lion lentivirus related to feline immunodeficiency virus: Epidemiologic and phylogenetic aspects, ,. Viral. 68:5953-5968. Merza, M., Larsson, E., Steen, M., and Morein, B., 1994, Association of a retrovirus with a wasting condition in the Swedish moose, Virology 202:956-961. Contents Chapter 1 The Human Immunodeficiency Viruses Edward Barker, Susan W Barnett, Leonidas Stamatatos, and Jay A. Levy I. Introduction .................................................... 1 TI. Description of Agent . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2 A. Virus Structure .............................................. 2 B. Genetic Organization and Gene Function ...................... 2 TIL Transmission.................................................... 7 A. General Observations ........................................ 7 B. HIV Transmission by Blood and Blood Products ................ 8 C. HIV Transmission by Genital Fluids ........................... 10 D. HIV Transmission by Other Body Fluids ....................... 12 E. Mother-to-Child Transmission ................................ 12 IV. HIV Infection of the Cell . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13 . . . . . . . . . . . . . A. Introduction ................................................. 13 B. HIV-Cell Interaction............ ............... .............. 15 C. CD4-Induced gp120 Conformational Changes .................. 16 D. Soluble CD4-Induced gp120-gp41 Dissociation..... ............ 16 E. gp120 Proteolytic Cleavage ................................... 17 F. pH-Independent Membrane Fusion ............................ 19 G. Transmission of HIV by Cell-to-Cell Fusion.................... 19 H. Additional Cell Surface Receptors for HIV ..................... 20 I. The Envelope Region and Cell Tropism ........ . . . . . . . . . . . . 21 . . . .


Molecular Virology of Human Pathogenic Viruses

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Molecular Virology of Human Pathogenic Viruses presents robust coverage of the key principles of molecular virology while emphasizing virus family structur ...

  • L'auteur : Wang-Shick Ryu
  • Editeur: Academic Press
  • ISBN: 0128009993
  • Genre: Science
  • Nombre de pages: 440
  • Langue: French/English
  • Vues: 1097
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Détails: Molecular Virology of Human Pathogenic Viruses presents robust coverage of the key principles of molecular virology while emphasizing virus family structure and providing key context points for topical advances in the field. The book is organized in a logical manner to aid in student discoverability and comprehension and is based on the author’s more than 20 years of teaching experience. Each chapter will describe the viral life cycle covering the order of classification, virion and genome structure, viral proteins, life cycle, and the effect on host and an emphasis on virus-host interaction is conveyed throughout the text. Molecular Virology of Human Pathogenic Viruses provides essential information for students and professionals in virology, molecular biology, microbiology, infectious disease, and immunology and contains outstanding features such as study questions and recommended journal articles with perspectives at the end of each chapter to assist students with scientific inquiries and in reading primary literature. Presents viruses within their family structure Contains recommended journal articles with perspectives to put primary literature in context Includes integrated recommended reading references within each chapter Provides access to online ancillary package inclusive of annotated PowerPoint images, instructor’s manual, study guide, and test bank


Advances in Virus Research

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Virology is the branch of microbiology that deals with viruses and viral infections. The overall goal of virus research is understand the action of various ...

  • L'auteur : ,
  • Editeur: Academic Press
  • ISBN: 9780080524535
  • Genre: Science
  • Nombre de pages: 628
  • Langue: French/English
  • Vues: 1162
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Détails: Virology is the branch of microbiology that deals with viruses and viral infections. The overall goal of virus research is understand the action of various viruses and develop vaccines or techniques that are effective at preventing or treating the diseases caused by them. Viruses that affect humans range in severity from the rhinoviruses that cause the "common cold" to the human immune deficiency (HIV) virus that causes AIDS. By their very nature, viruses are highly contagious and therefore affect millions of people, plants, and animals. This field continues to have new discoveries that are important to researchers and clinicians in the field.


Essential Human Virology

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Essential Human Virology is written for the undergraduate level with case studies integrated into each chapter. The structure and classification of viruses ...

  • L'auteur : Jennifer Louten
  • Editeur: Academic Press
  • ISBN: 0128011718
  • Genre: Science
  • Nombre de pages: 344
  • Langue: French/English
  • Vues: 1473
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Détails: Essential Human Virology is written for the undergraduate level with case studies integrated into each chapter. The structure and classification of viruses will be covered, as well as virus transmission and virus replication strategies based upon type of viral nucleic acid. Several chapters will focus on notable and recognizable viruses and the diseases caused by them, including influenza, HIV, hepatitis viruses, poliovirus, herpesviruses, and emerging and dangerous viruses. Additionally, how viruses cause disease, or pathogenesis, will be highlighted during the discussion of each virus family, and a chapter on the immune response to viruses will be included. Further, research laboratory assays and viral diagnosis assays will be discussed, as will vaccines, anti-viral drugs, gene therapy, and the beneficial uses of viruses. By focusing on general virology principles, current and future technologies, familiar human viruses, and the effects of these viruses on humans, this textbook will provide a solid foundation in virology while keeping the interest of undergraduate students. Focuses on the human diseases and cellular pathology that viruses cause Highlights current and cutting-edge technology and associated issues Presents real case studies and current news highlights in each chapter Features dynamic illustrations, chapter assessment questions, key terms, and summary of concepts, as well as an instructor website with lecture slides, test bank, and recommended activities


Viruses

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Viruses: Molecular Biology, Host Interactions, and Applications to Biotechnology provides an up-to-date introduction to human, animal and plant viruses wit ...

  • L'auteur : Paula Tennant,Gustavo Fermin,Jerome E. Foster
  • Editeur: Academic Press
  • ISBN: 0128111941
  • Genre: Science
  • Nombre de pages: 392
  • Langue: French/English
  • Vues: 728
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Détails: Viruses: Molecular Biology, Host Interactions, and Applications to Biotechnology provides an up-to-date introduction to human, animal and plant viruses within the context of recent advances in high-throughput sequencing that have demonstrated that viruses are vastly greater and more diverse than previously recognized. It covers discoveries such as the Mimivirus and its virophage which have stimulated new discussions on the definition of viruses, their place in the current view, and their inherent and derived ‘interactomics’ as defined by the molecules and the processes by which virus gene products interact with themselves and their host’s cellular gene products. Further, the book includes perspectives on basic aspects of virology, including the structure of viruses, the organization of their genomes, and basic strategies in replication and expression, emphasizing the diversity and versatility of viruses, how they cause disease and how their hosts react to such disease, and exploring developments in the field of host-microbe interactions in recent years. The book is likely to appeal, and be useful, to a wide audience that includes students, academics and researchers studying the molecular biology and applications of viruses Provides key insights into recent technological advances, including high-throughput sequencing Presents viruses not only as formidable foes, but also as entities that can be beneficial to their hosts and humankind that are helping to shape the tree of life Features exposition on the diversity and versatility of viruses, how they cause disease, and an exploration of virus-host interactions


Structure and Physics of Viruses

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This book contemplates the structure, dynamics and physics of virus particles: From the moment they come into existence by self-assembly from viral compone ...

  • L'auteur : Mauricio G. Mateu
  • Editeur: Springer Science & Business Media
  • ISBN: 9400765525
  • Genre: Medical
  • Nombre de pages: 728
  • Langue: French/English
  • Vues: 1646
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Détails: This book contemplates the structure, dynamics and physics of virus particles: From the moment they come into existence by self-assembly from viral components produced in the infected cell, through their extracellular stage, until they recognise and infect a new host cell and cease to exist by losing their physical integrity to start a new infectious cycle. (Bio)physical techniques used to study the structure of virus particles and components, and some applications of structure-based studies of viruses are also contemplated. This book is aimed first at M.Sc. students, Ph.D. students and postdoctoral researchers with a university degree in biology, chemistry, physics or related scientific disciplines who share an interest or are actually working on viruses. We have aimed also at providing an updated account of many important concepts, techniques, studies and applications in structural and physical virology for established scientists working on viruses, irrespective of their physical, chemical or biological background and their field of expertise. We have not attempted to provide a collection of for-experts-only reviews focused mainly on the latest research in specific topics; we have not generally assumed that the reader knows all of the jargon and all but the most recent and advanced results in each topic dealt with in this book. In short, we have attempted to write a book basic enough to be useful to M.Sc and Ph.D. students, as well as advanced and current enough to be useful to senior scientists with an interest in Structural and/or Physical Virology.


Virus Structure

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Virus Structure describes the physical characteristics of isolated viruses that represent typical structural groups, with particular reference to those fea ...

  • L'auteur : Robert W. Horne
  • Editeur: Academic Press
  • ISBN: 148327392X
  • Genre: Science
  • Nombre de pages: 56
  • Langue: French/English
  • Vues: 412
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Détails: Virus Structure describes the physical characteristics of isolated viruses that represent typical structural groups, with particular reference to those features analyzed with the aid of the electron microscope. For descriptive purposes, the book has been divided into sections starting with the small icosahedral viruses and leading to the larger and more sophisticated structures, regardless of whether they are animal, plant, or bacterial viruses. These include double-stranded DNA icosahedral viruses, herpesvirus, viruses with helical symmetry, and viruses with complex or a combination of symmetries. Many common architectural features will be found in those viruses selected for discussion in each of the sections, and for these reasons the introduction places some emphasis on the symmetry elements rather than the shapes of viruses. The mechanism by which viruses enter host cells and the events that follow once the cell has been infected are only mentioned briefly as the virus-host interaction is a relatively complex one.


The Molecular Biology of Poliovirus

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Years ago when we were asked to write a book on the present-day knowledge of the molecular biology of poliovirus, we did not expect that such an apparently ...

  • L'auteur : F. Koch,G. Koch
  • Editeur: Springer Science & Business Media
  • ISBN: 3709170001
  • Genre: Science
  • Nombre de pages: 590
  • Langue: French/English
  • Vues: 1443
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Détails: Years ago when we were asked to write a book on the present-day knowledge of the molecular biology of poliovirus, we did not expect that such an apparently simple task could involve so much time and effort. Our writing was hampered by the fact that both of us are full time "workers", so that this monograph is mainly a spare time expedience. The main attention of this book focuses on a detailed review of the molecular biology of poliovirus and especially on the advances of the last decade; medical and environmental aspects are only briefly mentioned. Observations from older studies are considered in view of more recent information. Some of the older ob servations provided fundamental insights and paved the way for present day research; too often such data has been neglected or independently rediscovered. Today, poliovirus research has again attracted considerable interest. High points gained within the last few years were the elucidation of the complete nucleotide sequences of the RNAs of the three poliovinls serotypes and the corresponding vaccine strains, the demonstration of genome evolution during transmission of poliovirus in an epidemic, further characterization of the antigenic sites on the virus particle and of the antigenic drift, characterization of alternate conforma tional states of the virion capsid, the development of monoclonal antibodies against some of the virus proteins, observations on the role of the plasma membrane, cytoskeleton, and cytoplasmic membranes as mediators in the virus induced redirection of the synthetic machinery of the host cell, and characteriza


Towards a Theory of Development

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Is it possible to explain and predict the development of living things? What is development? Articulate answers to these seemingly innocuous questions are ...

  • L'auteur : Alessandro Minelli,Thomas Pradeu
  • Editeur: OUP Oxford
  • ISBN: 0191651176
  • Genre: Science
  • Nombre de pages: 320
  • Langue: French/English
  • Vues: 495
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Détails: Is it possible to explain and predict the development of living things? What is development? Articulate answers to these seemingly innocuous questions are far from straightforward. To date, no systematic, targeted effort has been made to construct a unifying theory of development. This novel work offers a unique exploration of the foundations of ontogeny by asking how the development of living things should be understood. It explores the key concepts of developmental biology, asks whether general principles of development can be discovered, and examines the role of models and theories. The two editors (one a biologist with long interest in the theoretical aspects of his discipline, the other a philosopher of science who has mainly worked on biological systems) have assembled a team of leading contributors who are representative of the scientific and philosophical community within which a diversity of thoughts are growing, and out of which a theory of development may eventually emerge. They analyse a wealth of approaches to concepts, models and theories of development, such as gene regulatory networks, accounts based on systems biology and on physics of soft matter, the different articulations of evolution and development, symbiont-induced development, as well as the widely discussed concepts of positional information and morphogenetic field, the idea of a 'programme' of development and its critiques, and the long-standing opposition between preformationist and epigenetic conceptions of development. Towards a Theory of Development is primarily aimed at students and researchers in the fields of 'evo-devo', developmental biology, theoretical biology, systems biology, biophysics, and the philosophy of science.


Virion

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"Jesteś taki sam jak ona. Kompletnie nieprzewidywalny". Virion po raz kolejny staje twarzą w twarz z przeznaczeniem. Przeznaczenie, w osobie Horecha, nie ...

  • L'auteur : Andrzej Ziemiański
  • Editeur: Fabryka Słów Sp.zo.o.
  • ISBN: 837964414X
  • Genre: Fiction
  • Nombre de pages: 580
  • Langue: French/English
  • Vues: 1917
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Détails: "Jesteś taki sam jak ona. Kompletnie nieprzewidywalny". Virion po raz kolejny staje twarzą w twarz z przeznaczeniem. Przeznaczenie, w osobie Horecha, nie poderżnęło mu jednak gardła, a jedynie zażądało wódki. Stary Szermierz Natchniony zobaczył w młodym uciekinierze coś, co wyrwało go z pijackiego marazmu. To samo zobaczył w przebudzonej Niki. Droga młodego Viriona do zostania "Tym Virionem" właśnie się rozpoczęła. Taida, Luna, Anai, Kila - żadne z nich nie przeczuwa, że wszystkie ich plany, wszelkie zaszczyty i poniżenia jakie teraz są ich udziałem, zostaną obrócone w proch. Z taką samą łatwością, z jaką Szermierz Natchniony strząśnie z ostrza kroplę krwi. Ich krwi. Zawsze spodziewaj się niespodziewanego. Tylko wtedy masz szansę przeżyć. Niewielką, ale jednak szansę.


Virion. Zamek (#1 Szermierz Natchniony)

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Mrok otwierał właśnie swe wrota. Pokazywał, co jest za nimi. A najciekawsze było, że Virion nie mógł zobaczyć tam niczego, co by go odstręczało. ...

  • L'auteur : Andrzej Ziemiański
  • Editeur: Fabryka Słów Sp.zo.o.
  • ISBN: 8379646398
  • Genre: Fiction
  • Nombre de pages: 512
  • Langue: French/English
  • Vues: 386
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Détails: Mrok otwierał właśnie swe wrota. Pokazywał, co jest za nimi. A najciekawsze było, że Virion nie mógł zobaczyć tam niczego, co by go odstręczało. Czego by już nie poznał. Szalony świat Viriona - szermierza natchnionego, byłego skazańca, męża upiorzycy i przyjaciela upiorów - właśnie przeistoczył się w istny sen wariata. Pozostawiona w klasztorze Niki ma dla męża niespodziankę, która wprawi w osłupienie zarówno jego, jak i najstarsze upiory. Szalenie niebezpieczny, ale jednak uporządkowany świat Zamku drży w posadach. Gwiazda z ogonem przetacza się przez nieboskłon. Taida i Virion stają do walki ramię w ramię. Świat się kończy. Nadchodzi czas wszechogarniającego zła, nieposkromionego chaosu i doszczętnego zniszczenia.


Comparative Virology

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Comparative Virology provides an integrated comparison of viruses, based on their chemical and morphological characteristics. These descriptions will not o ...

  • L'auteur : Karl Maramorosch,Edouard Kurstak
  • Editeur: Academic Press
  • ISBN: 1483269698
  • Genre: Science
  • Nombre de pages: 600
  • Langue: French/English
  • Vues: 1598
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Détails: Comparative Virology provides an integrated comparison of viruses, based on their chemical and morphological characteristics. These descriptions will not only give the reader a background but also a detailed analysis of the various groups. In some instances the groups are still host related, as in the case of bacteriophages and polyhedral insect viruses. In others, for instance in pox viruses, the group comprises viruses of vertebrates and invertebrates. The hosts of the bacilliform Rhabdovirales range from man and other warm-blooded vertebrates through invertebrate animals to plants. A special chapter is devoted to viruses devoid of protein—a group that is of great interest and that has only recently been recognized. Since there is historical and practical interest in écologie groupings, such as arboviruses and oncogenic viruses, chapters on such groups have also been included. The book opens with a discussion on the classification of viruses. Chapters dealing with DNA viruses and RNA viruses follow, and the ecologically and disease-oriented groups complete the volume. It is hoped that ""Comparative Virology"" will help bring unity to the science of virology through the comparative approach that is not dependent on virus-host interactions. The combined efforts of eminent contributors to discuss and evaluate new information will hopefully benefit all who are interested in virology


The Orthopoxviruses

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The Orthopoxviruses presents knowledge and comprehensive and integrated picture of orthopoxviruses. The book looks into the molecular biology of this genus ...

  • L'auteur : Frank Fenner
  • Editeur: Elsevier
  • ISBN: 0323150225
  • Genre: Health & Fitness
  • Nombre de pages: 442
  • Langue: French/English
  • Vues: 919
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Détails: The Orthopoxviruses presents knowledge and comprehensive and integrated picture of orthopoxviruses. The book looks into the molecular biology of this genusof viruses, particularly, the structure and chemical composition of the virion, replication, morphogenesis, pathogenesis, pathology, and immunology of this virus’ infections. It also elucidates the global spread, control, and eradication of smallpox. Additionally, the book describes a potentially important use of vaccinia virus, namely, its use as a vector for genes from other viruses, bacteria, or protozoa that specify antigens important in stimulating the production of a protective immune response. Such comprehensive account of all aspects of the biology of all known species of orthopoxviruses will be valuable to molecular biologists, virologists, immunologists, pathologists, and researchers in the veterinary sciences.


The Plant Viruses

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This fifth volume in the series The Plant Viruses, dealing with viruses with bipartite genomes, completes the coverage of viruses with isometric parti cles ...

  • L'auteur : B.D. Harrison,A.F. Murant
  • Editeur: Springer Science & Business Media
  • ISBN: 1489917721
  • Genre: Science
  • Nombre de pages: 364
  • Langue: French/English
  • Vues: 1459
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Détails: This fifth volume in the series The Plant Viruses, dealing with viruses with bipartite genomes, completes the coverage of viruses with isometric parti cles and genomes consisting of single-stranded, positive-sense RNA: viruses that have tripartite and monopartite genomes of this kind were dealt with in Volumes 1 and 3, respectively. How close are the affinities among the viruses within the groupings distinguished in this way? All those with tripartite genomes are considered to be sufficiently closely related to be included in the family Bromoviridae, whereas the monopartite-genome viruses covered in Volume 3 clearly are a much more diverse collection. Affinities among the viruses with bipartite genomes are considered in Chapter 1 of this volume, along with the possible origins, advantages, and disadvantages of these ge nomes. The conclusion reached from this assessment is that the bipartite genome viruses fall into four categories, those within each category having closer affinities with viruses not included in this book than with viruses in the other categories. No evidence was found that possession of a bipartite genome gives a virus overwhelming advantages over viruses of other sorts. More probably, any advantages are largely balanced by disadvantages, and bipartite genomes may be best considered simply as an alternative design for the hereditary material of a virus.