1.

Record Nr.

UNINA9910458239103321

Autore

Craig Catherine Lee

Titolo

Spiderwebs and silk : tracing evolution from molecules to genes to phenotypes / / Catherine L. Craig

Pubbl/distr/stampa

New York, New York : , : Oxford University Press, , 2003

©2003

ISBN

1-280-47226-X

9786610472260

1-4237-5773-4

0-19-535163-0

1-60256-364-0

Descrizione fisica

1 online resource (257 p.)

Disciplina

595.4/4

Soggetti

Orb weavers - Evolution

Silk

Electronic books.

Lingua di pubblicazione

Inglese

Formato

Materiale a stampa

Livello bibliografico

Monografia

Note generali

Description based upon print version of record.

Nota di bibliografia

Includes bibliographical references and index.

Nota di contenuto

Contents; 1 Silk Proteins: Breakdown and Evolutionary Pathways; 2 The Comparative Architecture of Silks, Fibrous Proteins, and Their Encoding Genes in Insects and Spiders; 3 The Mechanical Functions of Silks and Their Correlated Structural Properties; 4 Insect Spatial Vision Is a Potential Selective Factor on the Evolution of Silk Achromatic Properties and Web Architecture; 5 Insect Color Vision Is a Potential Selective Factor on the Evolution of Silk Chromatic Properties and Web Design

6 Insect Learning Capacity Is a Potential Selective Factor in the Evolution of Silk Color and the Decorative Silk Patterns Spun by Spiders7 Inter-Gland Competition for Amino Acids and the ATP Costs of Silk Synthesis; 8 A One-Dimensional Developmental System and Life-Long Silk Synthesis May Preclude the Evolution of Higher Eusociality in Spiders; 9 Conclusions and Looking Forward; References; Index

Sommario/riassunto

Links the molecular evolution of silk proteins to the evolution and behavioral ecology of web-spinning spiders and other arthropods. This



book presents an integrated understanding of an interesting biological system at the molecular and organizational levels.

2.

Record Nr.

UNINA9910777855203321

Autore

Sowell Thomas <1930->

Titolo

Affirmative action around the world [[electronic resource] ] : an empirical study / / Thomas Sowell

Pubbl/distr/stampa

New Haven, : Yale University Press, c2004

ISBN

1-281-72177-8

9786611721770

0-300-12835-5

Descrizione fisica

1 online resource (256 p.)

Disciplina

331.13/3

Soggetti

Affirmative action programs in education

Discrimination in education

Discrimination in employment

Lingua di pubblicazione

Inglese

Formato

Materiale a stampa

Livello bibliografico

Monografia

Note generali

Bibliographic Level Mode of Issuance: Monograph

Nota di bibliografia

Includes bibliographical references (p. [199]-231) and index.

Nota di contenuto

An international perspective -- Affirmative action in India -- Affirmative action in Malaysia -- Affirmative action in Sri Lanka -- Affirmative action in Nigeria -- Affirmative action in the United States -- The past and the future.

Sommario/riassunto

This book moves the discussion of affirmative action beyond the United States to other countries that have had similar policies, often for a longer time than Americans have. It also moves the discussion beyond the theories, principles, and laws that have been so often debated to the actual empirical consequences of affirmative action in the United States and in India, Nigeria, Malaysia, Sri Lanka, and other countries. Both common patterns and national differences are examined. Much of what emerges from a factual examination of these policies flatly contradicts much of what was expected and much of what has been claimed.