Introduction à l'étude de la langue portugaise à l'usage des étrangers. 1: Origine, histoire et évolutions de la langue ; la phonétique et l'orthographe / Vasco da Fonseca

• Record Nr.: UNIORUON00407190
• Autore: FONSECA, Vasco : de
• Pubbl/distr/stampa: Lisboa, : Instituto de Cultura e Língua Portuguesa, Ministério da Eduçacão, 1984
• Descrizione fisica: 194 p ; 24 cm.
• Disciplina: 469.799
• Soggetti: LINGUA PORTOGHESE - Storia; LINGUA PORTOGHESE - Fonetica
• Lingua di pubblicazione: Francese
• Formato: Materiale a stampa
• Livello bibliografico: Monografia

Lipophilicity in drug action and toxicology / / edited by Vladimir Pliska, Bernard Testa, and Han van de Waterbeemd

• Record Nr.: UNINA9911019385203321
• Pubbl/distr/stampa: Weinheim ; ; New York, : VCH, c1996
• ISBN: 9786611842666; 9781281842664; 1281842664; 9783527614998; 3527614990; 9783527614981; 3527614982
• Descrizione fisica: 1 online resource (466 p.)
• Collana: Methods and principles in medicinal chemistry ; ; v. 4
• Altri autori (Persone): PliskaVladimir; TestaBernard; WaterbeemdHan van de
• Disciplina: 615/.19
• Soggetti: Drug lipophilicity; Toxicology
• 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: Lipophilicity in Drug Action and Toxicology; Preface; A Personal Foreword; List of Contributors; Contents; 1 Lipophilicity : The Empirical Tool and the Fundamental Objective . An Introduction; 1.1 Setting the Scene; 1.2 Biological Aspects; 1.3 The Molecule in the Background; 1.4 Some Pragmatic Aspects; 1.4.1 Definitions and Symbols; 1.4.2 Experimental Techniques; 1.4.3 Computational Procedures; 1.5 Objectives of the Book; References; 2 Lipophilicity: A History; 2.1 Introduction; 2.2 Measurement of Lipophilicity; 2.3 Calculation of Lipophilicity; 2.3.1 Substitution Method; 2.3.2 Fragment Additivity Method2.3.3 Fragmentation into Atoms; 2.3.4 Molecular Orbital Calculations; 2.3.5 Calculations Based on Surface Area; 2.4 The Nature of Lipophilicity; 2.4.1 Relation to Other Molecular Properties; 2.4.2 Thermodynamics of Partitioning; 2.4.2.1 Phase Transfer; 2.4.2.2 The Aqueous Phase and the "Hydrophobic Bond"; 2.5 Lipophilicity and Biological Activity; References; 3 Thermodynamics of van der Waals and Hydrophobic Interactions; 3.1 Introduction; 3.2 Outline of Thermodynamics and Auxiliary Disciplines; 3.3 Intermolecular Interactions of the van der Waals Type; 3.3.1 The Physical Nature of van der Waals Interactions3.3.2 Classification of van der Waals Clusters; 3.3.3 Calculation of the Interaction Energy; 3.3.3.1 Nonempirical ab initio Variational Method; 3.3.3.2 Density Functional Theory; 3.3.3.3 Semiempirical Methods; 3.3.3.4 Empirical Procedures; 3.3.4 How to Obtain a Consistent Set of Various Calculated Properties for van der Waals Clusters; 3.3.4.1 Potential Energy Surface (P . E . S.); 3.3.4.2 Stabilization Energy; 3.3.4.3 Empirical Potential; 3.3.4.4 Vibration Frequencies; 3.3.4.5 Computer Experiments; 3.4 Processes Involving Hydrophobic Effects3.5 Specific Illustrations; 3.5.1 Ab initio Evaluation of a Consistent Set of Various Properties of the Benzene ... Arn Cluster; 3.5.1.1 Potential Energy Surface; 3.5.1.2 More Accurate Calculations for the Global Minimum; 3.5.1.3 Preparation of the Empirical Potential; 3.5.1.4 Vibrational Frequencies; 3.5.1.5 Molecular Dynamics Simulations; 3.5.2 Monte Carlo Free Energy Perturbation Calculation : Solvation Free Energy of Methanol and Ethane; References; Appendices; 4 Intramolecular Interactions Encoded in Lipophilicity : Their Nature and Significance; 4.1. Introduction : The Concept of Molecular Structure4.1.1 The Elementary and Geometric Levels of Description; 4.1.2 The Stereoelectronic Levels of Description; 4.1.3 Social Molecules; 4.2 Intermolecular Forces Encoded in Lipophilicity; 4.2.1 Recognition Forces in Molecular Pharmacology and Biology; 4.2.2 Factorization of Molecular Lipophilicity; 4.2.3 Polar Interactions Encoded in Lipophilicity; 4.2.4 Nonpolar Interactions Encoded in Lipophilicity; 4.2.5 Recognition Forces Encoded in Lipophilicity; 4.3 Intramolecular Interactions Affecting Lipophilicity; 4.3.1 Electronic Conjugations; 4.3.1.1 In Aromatic Systems
• Sommario/riassunto: In keeping with the outstanding importance of lipophilicity in biosciences, this volume examines all its facets in more than twenty contributions from leading experts.It offers a thorough and highly topical survey of this rapidly developing field of research. Color plates demonstrating structural aspects, a vast number of references, and the ; straightforward presentation of the material make this volume a invaluable tool for all researchers involved in drug design or in the investigation of drug action.