After winter [[electronic resource] ] : the art and life of Sterling A. Brown / / edited by John Edgar Tidwell and Steven C. Tracy

• Record Nr.: UNINA9910454550303321
• Pubbl/distr/stampa: Oxford ; ; New York, : Oxford University Press, 2009
• ISBN: 1-281-93094-6; 9786611930943; 1-4416-0031-0; 0-19-971089-9
• Descrizione fisica: 1 online resource (497 p.)
• Altri autori (Persone): TidwellJohn Edgar; TracySteven C <1954-> (Steven Carl)
• Disciplina: 811/.52
• Soggetti: African American aesthetics; African Americans - Intellectual life - 20th century; 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.; Includes discographies.
• Nota di contenuto: Contents; Contributors; Sterling A. Brown Chronology; Introduction: Sterling A. Brown's Odyssey into the Heart of Blackness; Part I: Revelations; Part II: "A Nachal Man": Formal and Vernacular Aesthetic Theories; Part III: Folk-Say and Living-People-Lore; Part IV: Unhistoric History: American and African American Cultures; Part V: "Running Space": Legacies and Continuities; Part VI: "Steady and Unaccusing": Interviews; Part VII: "On This I Stand": A Bibliography; Part VIII: "A Geography of Poetry and Song": A Discography; Index
• Sommario/riassunto: John Edgar Tidwell and Steven C. Tracy have brought together for the first time a book-length collection of critical and theoretical writings about Sterling A. Brown that recovers and reasserts his continuing importance for a contemporary audience. Exploring new directions in the study of Brown's life and work, After Winter includes new and previously published essays that sum up contemporary approaches to Brown's multifaceted works; interviews with Brown's acquaintances and contemporaries; an up-to-date, annotated bibliography; and a ; discography of source material that innovatively extends th

Bioinspired catalysis : metal-sulfur complexes / / edited by Wolfgang Weigand and Philippe Schollhammer ; contributors Ulf-Peter Apfel [and thirty three others]

• Record Nr.: UNINA9910132344203321
• Pubbl/distr/stampa: Weinheim, Germany : , : Wiley-VCH, , 2015; ©2015
• ISBN: 3-527-66418-1; 3-527-66416-5; 3-527-66419-X
• Descrizione fisica: 1 online resource (438 p.)
• Disciplina: 541.2242
• Soggetti: Metal complexes
• 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 at the end of each chapters and index.
• Nota di contenuto: Bioinspired Catalysis; Contents; List of Contributors; Preface; Part I Primordial Metal-Sulfur-Mediated Reactions; Chapter 1 From Chemical Invariance to Genetic Variability; 1.1 Heuristic of Biochemical Retrodiction; 1.2 Retrodicting the Elements of Life; 1.3 Retrodicting Pioneer Catalysis; 1.4 Retrodicting Metabolic Reproduction and Evolution; 1.5 Retrodicting Pioneer-Metabolic Reactions; 1.6 Early Evolution in a Spatiotemporal Flow Context; Acknowledgments; References; Chapter 2 Fe-S Clusters: Biogenesis and Redox, Catalytic, and Regulatory Properties; 2.1 Introduction; 2.2 Fe-S Cluster Biogenesis and Trafficking2.3 Redox Properties of Fe-S Clusters; 2.4 Fe-S Clusters and Catalysis; 2.4.1 Redox Catalysis; 2.4.2 Nonredox Fe-S Cluster-Based Catalysis; 2.5 Fe-S Clusters and Oxidative Stress; 2.6 Regulation of Protein Expression by Fe-S Clusters; 2.6.1 Eukaryotic Iron Regulatory Protein 1 (IRP1); 2.6.1.1 IRP1 and Fe-S Cluster Biogenesis; 2.6.1.2 Reactive Oxygen Species and IRP1 Fe-S Cluster Stability; 2.6.1.3 X-Ray Structural Studies of IRP1-IRE ; Complexes; 2.6.2 Bacterial Fumarate Nitrate Reduction Regulator (FNR); 2.6.3 The ISC Assembly Machinery Regulator IscR; 2.7 ConclusionReferences; Part II Model Complexes of the Active Site of Hydrogenases - Proton and Dihydrogen Activation; Chapter 3 [NiFe] Hydrogenases; 3.1 Introduction; 3.2 Introduction to [NiFe] Hydrogenases; 3.3 Nickel Thiolate Complexes as Analogs of [NiFe] Hydrogenase; 3.4 [NiFe] Hydrogenase Model Complexes; 3.4.1 Amine [N2Ni(μ-S2)Fe] Complexes; 3.4.2 Phosphine [P2Ni(μ-S2)Fe] Complexes; 3.4.3 Thiolate [SxNi(μ-Sy)Fe] Complexes; 3.4.4 Polymetallic [Ni(μ-S)zFey] Complexes; 3.5 Analogs of [NiFe] Hydrogenase Incorporating Proton Relays; 3.5.1 Nickel Complexes Incorporating Protonation Sites; 3.5.2 [NiFe] Complexes Incorporating Protonation Sites3.6 Perspectives and Future Challenges; Acknowledgments; References; Chapter 4 [FeFe] Hydrogenase Models: an Overview; 4.1 Introduction; 4.2 Synthetic Strategies toward [FeFe] Hydrogenase Model Complexes; 4.3 Properties of Model Complexes; 4.3.1 Biomimetic Models of the ""Rotated State""; 4.3.2 Electron Transfer in [FeFe] Hydrogenase Models; 4.3.3 Protonation Chemistry of [FeFe] Hydrogenase Models; 4.3.3.1 Hydride Formation; 4.3.3.2 Ligand Protonation and Proton Relays; 4.3.4 Water-Soluble Hydrogenase Mimics; 4.4 Conclusion; References; Chapter 5 The Third Hydrogenase5.1 Introduction; 5.2 Initial Studies of Hmd; 5.3 Discovery that Hmd Contains a Bound Cofactor; 5.4 Discovery that Hmd is a Metalloenzyme; 5.5 Crystal Structure Studies of [Fe] Hydrogenase; 5.6 Mechanistic Models of [Fe] Hydrogenase; 5.6.1 Studies Before the Most Recent Assignment of the FeGP Cofactor; 5.6.2 Studies After the Most Recent Assignment of the FeGP Cofactor; 5.6.3 Synthesized Model Complexes of the FeGP Cofactor; References; Chapter 6 DFT Investigation of Models Related to the Active Site of Hydrogenases; 6.1 Introduction; 6.2 QM Studies of Hydrogenases
• Sommario/riassunto: This book provides an overview of bioinspired metal-sulfur catalysis by covering structures, activities and model complexes of enzymes exhibiting metal sulphur moieties in their active center.

Neuroendocrine mechanisms that connect feeding behavior and stress / / edited by Alfonso Abizaid and Zane Andrews

• Record Nr.: UNINA9910137221103321
• Autore: Zane Andrews
• Pubbl/distr/stampa: Frontiers Media SA, 2015; [Lausanne, Switzerland] : , : Frontiers Media SA, , [2015]; ©2015
• ISBN: 9782889195077
• Descrizione fisica: 1 online resource (189 pages) : illustrations (black and white, and colour); digital file(s)
• Collana: Frontiers Research Topics, , 1664-8714
• Soggetti: Neuroendocrinology; Paraneurons; Stress (Physiology) - Endocrine aspects; Obesity - Endocrine aspects; Dopamine; Ghrelin; Leptin; Neuroscience; Human Anatomy & Physiology; Health & Biological Sciences
• Lingua di pubblicazione: Inglese
• Formato: Materiale a stampa
• Livello bibliografico: Monografia
• Note generali: Bibliographic Level Mode of Issuance: Monograph; "Published in: Frontiers in neuroscience" -- front cover.
• Nota di bibliografia: Includes bibliographical references.
• Sommario/riassunto: Research during the past decade highlights the strong link between appetitive feeding behavior, reward and motivation. Interestingly, stress levels can affect feeding behavior by manipulating hypothalamic circuits and brain dopaminergic reward pathways. Indeed, animals and people will increase or decrease their feeding responses when stressed. In many cases acute stress leads to a decrease in food intake, yet chronic social stressors are associated to increases in caloric intake and adiposity. Interestingly, mood disorders and the treatments used to ; manage these disorders are also associated with changes in appetite and body weight. These data suggest a strong interaction between the systems that regulate feeding and metabolism and those that regulate mood. This Research Topic aims to illustrate how hormonal mechanisms regulate the nexus between feeding behavior and stress. It focuses on the hormonal regulation of hypothalamic circuits and/or brain dopaminergic systems, as the potential sites controlling the converging pathways between feeding behavior and stress.