1.

Record Nr.

UNISA990000992420203316

Titolo

Studi e ricerche sulla classe politica in Italia, Argentina e Messico : materiali per un'analisi comparata / E. A. Albertoni ... [et al.] ; a cura di Dino Fiorot

Pubbl/distr/stampa

Padova : CEDAM, 1991

ISBN

88-13-17244-3

Descrizione fisica

VI, 468 ; 25 cm

Collana

Pubblicazioni della Facoltà di scienze politiche dell'Università di Padova ; 11

Disciplina

306.260945

Collocazione

306.260 STU 1 (X 14 V 11)

Lingua di pubblicazione

Italiano

Formato

Materiale a stampa

Livello bibliografico

Monografia

2.

Record Nr.

UNINA9910146268003321

Titolo

Computational modeling for homogeneous and enzymatic catalysis [[electronic resource] ] : a knowledge-base for designing efficient catalysts / / edited by Keiji Morokuma and Djamaladdin G. Musaev

Pubbl/distr/stampa

Weinheim, : Wiley-VCH

Chichester, : John Wiley [distributor], 2008

ISBN

1-282-37223-8

9786612372230

3-527-62196-2

3-527-62197-0

Descrizione fisica

1 online resource (400 p.)

Altri autori (Persone)

MorokumaK <1934-> (Keiji)

MusaevDjamaladdin G

Disciplina

660.2995

Soggetti

Catalysis - Computer simulation

Catalysts

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

Computational Modeling for Homogeneous and Enzymatic Catalysis; Contents; Preface; List of Contributors; 1 Computational Insights into the Structural Properties and Catalytic Functions of Selenoprotein Glutathione Peroxidase (GPx); 1.1 Introduction; 1.2 Catalytic Functions; 1.2.1 Peroxidase Activity; 1.2.2 Reductase Activity; 1.3 Computational Details; 1.3.1 Computational Methods; 1.3.2 Computational Models; 1.4 Results and Discussion; 1.4.1 Refinement of the Active Site; 1.4.2 Catalytic Functions: Peroxidase Activity

1.4.3 Catalytic Functions: Effect of the Surrounding Protein on the Peroxidase Activity1.4.3.1 Hydrogen Peroxide Coordination; 1.4.3.2 Formation of Selenenic Acid [E-Se-OH]; 1.4.4 Catalytic Functions: Reductase Activity; 1.4.4.1 Peroxynitrite/Peroxynitrous Acid (ONOO ̄/ONOOH) Coordination; 1.4.4.2 Oxidation Pathway; 1.4.4.3 Nitration Pathways; 1.5 Summary; References; 2 A Comparison of Tetrapyrrole Cofactors in Nature and their Tuning by Axial Ligands; 2.1 Introduction; 2.2 Methodology; 2.3 Comparison of the Intrinsic Chemical Properties of the Tetrapyrroles; 2.3.1 Introduction

2.3.2 Spin States2.3.3 Tetrapyrroles Prefer Their Native Ions; 2.3.4 Cavity Size and Flexibility of the Tetrapyrroles; 2.3.5 Cytochrome-like Electron Transfer; 2.3.6 Stability of a Metal-Carbon Bond; 2.3.7 Metallation Reaction; 2.4 Tuning of Tetrapyrrole Structure and Function by Axial Ligands; 2.4.1 Introduction; 2.4.2 Importance of the Lower Axial Ligand for B(12) Chemistry; 2.4.3 Lower Axial Ligand in Cofactor F430; 2.4.4 Importance of Axial Ligands for the Globins; 2.4.5 Role of Axial Ligands for the Cytochromes; 2.4.6 Role of the Axial Ligand in Heme Enzymes

2.4.7 Tuning the His Ligand by Hydrogen Bonds in Heme Proteins2.4.8 Axial Ligand in Chlorophylls; 2.5 Concluding Remarks; References; 3 Modeling of Mechanisms for Metalloenzymes where Protons and Electrons Enter or Leave; 3.1 Introduction; 3.2 Energy Diagrams; 3.2.1 Photosystem II; 3.2.2 Cytochrome c Oxidase; 3.2.3 Nitric Oxide Reduction; 3.2.4 NiFe-hydrogenase; 3.2.5 Molybdenum CO Dehydrogenase; 3.3 Conclusions; References; 4 Principles of Dinitrogen Hydrogenation: Computational Insights; 4.1 Introduction

4.2 Reaction Mechanism of the Coordinated Dinitrogen Molecule in Di-zirconocene-N(2) Complexes with a Hydrogen Molecule4.2.1 Mechanism of the Reaction (3); 4.2.2 Mechanisms of the Reactions (4) and (5); 4.3 Factors Controlling the N(2) Coordination Modes in the Di-zirconocene-N(2) Complexes; 4.4 Why the [(η(5)-C(5)Me(n)H(5-n))(2)Ti](2)(μ(2),η(2),η(2)-N(2)) Complex Cannot Add a H(2) Molecule to the Side-on Coordinated N(2), while its Zr- and Hf-analogs Can

4.4.1 Relative Stability of the Lowest Singlet (S) and Triplet (T) Electronic States of the Complexes [(η(5)-C(5)Me(n)H(5-n))(2)M](2)(μ(2),η(2),η(2)-N(2)), II_M (for M = Ti, Zr, and Hf, and n = 0 and 4)

Sommario/riassunto

Here, the world's most active and productive computational scientists from academia and industry present established, effective and powerful tools for understanding catalysts. With its broad scope -- nitrogen fixation, polymerization, C-H bond activation, oxidations, biocatalysis and much more -- this book represents an extensive knowledge base for designing efficient catalysts, allowing readers to improve the performance of their own catalysts.



3.

Record Nr.

UNINA9910337954203321

Autore

Kirchhoff Claire A

Titolo

Life and Death in the Gombe Chimpanzees : Skeletal Analysis as an Insight into Life History / / by Claire A. Kirchhoff

Pubbl/distr/stampa

Cham : , : Springer International Publishing : , : Imprint : Springer, , 2019

ISBN

9783030183547

9783030183554 (e-book)

Edizione

[1st ed. 2019.]

Descrizione fisica

1 online resource (XII, 181 p. 135 illus., 115 illus. in color.)

Collana

Developments in Primatology: Progress and Prospects, , 1574-3489

Disciplina

571.31

599.885

Soggetti

Anatomy

Medical anthropology

Physiology

Veterinary medicine

Animal ecology

Animal Anatomy / Morphology / Histology

Medical Anthropology

Animal Physiology

Veterinary Medicine/Veterinary Science

Animal Ecology

Lingua di pubblicazione

Inglese

Formato

Materiale a stampa

Livello bibliografico

Monografia

Nota di contenuto

Preface -- The Gombe skeletal sample and case studies -- Analysis of skeletal lesions -- Discussion -- Index.

Sommario/riassunto

This book addresses how skeletons can inform us about behavior by describing skeletal lesions in the Gombe chimpanzees, relating them to known life histories whenever possible, and analyzing demographic patterns in the sample. This is of particular interest to both primatologists and skeletal analysts who have benefited from published data on a smaller, earlier skeletal sample from Gombe. The Gombe skeletal collection is the largest collection of wild chimpanzees with known life histories in existence, and this work significantly expands



the skeletal sample from this long-term research site (49 chimpanzees). The book explores topics of general interest to skeletal analysts such as demographic patterns, which injuries leave signs on the skeleton, and rates of healing, and discusses both qualitative and quantitative analysis of the patterning of lesions. The book presents the data in a narrative style similar to that employed in Dr. Goodall’s seminal work The Chimpanzees of Gombe. Readers already familiar with the Gombe chimpanzees are likely to appreciate summaries of life events correlated to observable skeletal features. The book is especially relevant at this time to remind primate conservationists of the importance of the isolated chimpanzee population at Gombe National Park as well as the availability of the skeletons for study, both within the park itself as well as at the University of Minnesota.