1.

Record Nr.

UNINA9910792490403321

Autore

Drenth Jan

Titolo

Principles of Protein X-ray Crystallography [[electronic resource] /] / by Jan Drenth

Pubbl/distr/stampa

New York, NY : , : Springer New York : , : Imprint : Springer, , 1999

ISBN

1-4757-3092-6

Edizione

[2nd ed. 1999.]

Descrizione fisica

1 online resource (XV, 341 p.)

Collana

Springer Advanced Texts in Chemistry, , 0172-6323

Disciplina

572

Soggetti

Biochemistry

Analytical chemistry

Biophysics

Biological physics

Biochemistry, general

Analytical Chemistry

Biological and Medical Physics, Biophysics

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 and index.

Nota di contenuto

1 Crystallizing a Protein -- 2 X-ray Sources and Detectors -- 3 Crystals -- 4 The Theory of X-ray Diffraction by a Crystal -- 5 Average Reflection Intensity and Distribution of Structure Factor Data -- 6 Special Forms of the Structure Factor -- 7 The Solution of the Phase Problem by the Isomorphous Replacement Method -- 8 Phase Improvement -- 9 Anomalous Scattering in the Determination of the Protein Phase Angles and the Absolute Configuration -- 10 Molecular Replacement -- 11 Direct Methods -- 12 Laue Diffraction -- 13 Refinement of the Model Structure -- 14 The Combination of Phase Information -- 15 Checking for Gross Errors and Estimating the Accuracy of the Structural Model -- Appendix 1 A Compilation of Equations for Calculating Electron Density Maps -- Appendix 2 A Compilation of Reliability Indices -- Appendix 3 The Variation in the Intensity of X-ray Radiation -- References.

Sommario/riassunto

New textbooks at all levels of chemistry appear with great regularity. Some fields such as basic biochemistry, organic reaction mechanisms, and chemical thermodynamics are well represented by many excellent



texts, and new or revised editions are published sufficiently often to keep up with progress in research. However, some areas of chemistry, especially many of those taught at the graduate level, suffer from a real lack of up­ to-date textbooks. The most serious needs occur in fields that are rapidly changing. Textbooks in these subjects usually have to be written by scientists actually involved in the research that is advancing the field. It is not often easy to persuade such individuals to set time aside to help spread the knowledge they have accumulated. Our goal, in this series, is to pinpoint areas of chemistry where recent progress has outpaced what is covered in any available textbooks, and then seek out and persuade experts in these fields to produce relatively concise but instructive intro­ ductions to their fields. These should serve the needs of one-semester or one-quarter graduate courses in chemistry and biochemistry. In some cases, the availability of texts in active research areas should help stimulate the creation of new courses. Charles R. Cantor v Preface to the Second Edition Since the publication of the previous edition in 1994, X-ray crystallography of proteins has advanced by improvements in existing techniques and by addition of new techniques.



2.

Record Nr.

UNINA9910964492603321

Autore

Mazrui Ali AlAmin

Titolo

English in Africa : after the Cold War / / Alamin M. Mazrui

Pubbl/distr/stampa

Clevedon, : Multilingual Matters, c2004

ISBN

9786610828272

9781853596911

9781280828270

1280828277

9781853596919

1853596914

Edizione

[1st ed.]

Descrizione fisica

1 online resource (152 p.)

Collana

Multilingual matters (Series) ; ; 126

Disciplina

420.9609049

Soggetti

English language - Africa

English language - Social aspects - Africa

English language - Political aspects - Africa

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

Front matter -- Contents -- Acknowledgements -- Introduction -- Chapter 1. Post-Cold War English in Africa: Between Complementarity and Competition -- Chapter 2. English and African Education: Between Linguistic and Intellectual Dependency -- Chapter 3. English and the Pan-African Experience: In Search of Unity -- Chapter 4. English and the Afrocentric Voice: In Search of Authenticity -- Conclusion: Linguistic Appropriation and Beyond -- Appendix: The Asmara Declaration on African Languages and Literatures -- References -- Index

Sommario/riassunto

This book offers a critical examination of aspects of the politics the role of English in Africa and its Diaspora. It looks at its changed location in the post-Cold War era and the challenges it poses to the enduring quest for intellectual liberation, pan-Africanism and Afrocentricity. The study also explores the spaces and possibilities for “appropriating” the language towards a counter-hegemonic African-centred agenda under the present global order.



3.

Record Nr.

UNINA9911012779803321

Titolo

Biblioteche adriatiche : storie e destini / a cura di Federica Formiga

Pubbl/distr/stampa

Dueville, : Ronzani, 2024

ISBN

9791259971227

Descrizione fisica

154 p. : ill. ; 24 cm

Collana

Storia e culture del libro. Documenti ; 19

Disciplina

027.14534

Locazione

FSPBC

Collocazione

COLLEZ. 3377 (19)

Lingua di pubblicazione

Italiano

Formato

Materiale a stampa

Livello bibliografico

Monografia

Note generali

In calce al front.: CA Coordinamento Adriatico

In cop.: Rielaborazione grafica di antica carta geografica dell'Istria