Search results for: problematica

Animal Evolution

Author : NATURAL SCIENCES and MATHEMATICS (500)
File Size : 71.34 MB
Format : PDF
Download : 963
Read : 888
Download »
Animal life, now and over the past half billion years, is incredibly diverse. Describing and understanding the evolution of this diversity of body plans - from vertebrates such as humans and fish to the numerous invertebrate groups including sponges, insects, molluscs, and the many groups of worms - is a major goal of evolutionary biology. In this book, a group of leading researchers adopt a modern, integrated approach to describe how current molecular genetic techniques and disciplines as diverse as palaeontology, embryology, and genomics have been combined, resulting in a dramatic renaissance in the study of animal evolution. The last decade has seen growing interest in evolutionary biology fuelled by a wealth of data from molecular biology. Modern phylogenies integrating evidence from molecules, embryological data, and morphology of living and fossil taxa provide a wide consensus of the major branching patterns of the tree of life; moreover, the links between phenotype and genotype are increasingly well understood. This has resulted in a reliable tree of relationships that has been widely accepted and has spawned numerous new and exciting questions that require a reassessment of the origins and radiation of animal life. The focus of this volume is at the level of major animal groups, the morphological innovations that define them, and the mechanisms of change to their embryology that have resulted in their evolution. Current research themes and future prospects are highlighted including phylogeny reconstruction, comparative developmental biology, the value of different sources of data and the importance of fossils, homology assessment, character evolution, phylogeny of major groups of animals, and genome evolution. These topics are integrated in the light of a 'new animal phylogeny', to provide fresh insights into the patterns and processes of animal evolution. Animal Evolution provides a timely and comprehensive statement of progress in the field for academic researchers requiring an authoritative, balanced and up-to-date overview of the topic. It is also intended for both upper level undergraduate and graduate students taking courses in animal evolution, molecular phylogenetics, evo-devo, comparative genomics and associated disciplines.

New Zealand Journal of Geology and Geophysics

Author :
File Size : 84.52 MB
Format : PDF, Docs
Download : 279
Read : 599
Download »

Index catalogue of the Library of the Surgeon General s Office United States Army

Author : Library of the Surgeon-General's Office (U.S.)
File Size : 41.90 MB
Format : PDF, ePub
Download : 511
Read : 363
Download »

Urban Social Movements in the Third World

Author : Frans Schuurman
File Size : 90.90 MB
Format : PDF, ePub, Docs
Download : 607
Read : 1087
Download »
This reissue, initially published in 1989, considers the upsurge of locally-based movements attempting to improve living conditions in Third-World cities throughout the 1980s. The book presents qualitative, comparative research on the dynamics and constraints of these urban social movements, in a cross-cultural framework, using case studies from a variety of Latin American, African and Asian countries. As more democratic-type regimes establish themselves in the Third World, the possibilities for collective organisations and actions increase. Urban social movements therefore are playing an increasingly important role in the habitat of the poor.

Index catalogue of the Library of the Surgeon General s Office United States Army

Author : National Library of Medicine (U.S.)
File Size : 54.60 MB
Format : PDF, Mobi
Download : 908
Read : 694
Download »

Three New Species of Freshwater Ostracods Crustacea from Argentina

Author : Edward Jr Ferguson
File Size : 62.27 MB
Format : PDF, ePub, Mobi
Download : 877
Read : 641
Download »

New Zealand Journal of Geology and Geophysics

Author :
File Size : 42.66 MB
Format : PDF, ePub
Download : 868
Read : 896
Download »

Philosophical Transactions

Author :
File Size : 87.72 MB
Format : PDF, ePub, Docs
Download : 128
Read : 382
Download »
Each issue of Transactions B is devoted to a specific area of the biological sciences, including clinical science. All papers are peer reviewed and edited to the highest standards. Published on the 29th of each month, Transactions B is essential reading for all biologists.

Multilingual Thesaurus of Geosciences

Author : G. N. Rassam
File Size : 59.68 MB
Format : PDF, ePub, Mobi
Download : 679
Read : 675
Download »
This thesaurus is presented in six languages, English, French, German, Italian, Russian and Spanish, and sponsored by the International Council for Scientific and Technical Information (ICSTI) and the International Union of Geological Sciences (IUGS). There is a main list of approximately 5000 key terms together with indexes and translations which include a specific linguistic index and a field index in which key terms have been classified by field.

Hearings Before the Ad Hoc Advisory Group on the Presidential Vote for Puerto Rico

Author : United States. Ad Hoc Advisory Group on the Presidential Vote for Puerto Rico
File Size : 52.21 MB
Format : PDF
Download : 144
Read : 212
Download »