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1. |
Record Nr. |
UNINA9910830621503321 |
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Autore |
Ali Imran |
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Titolo |
Chiral pollutants [[electronic resource] ] : distribution, toxicity, and analysis by chromatography and capillary electrophoresis / / Imran Ali and Hassan Y. Aboul-Enein |
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Pubbl/distr/stampa |
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Chichester, West Sussex, Eng. ; ; Hoboken, NJ, : J. Wiley, c2004 |
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ISBN |
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1-280-27616-9 |
9786610276165 |
0-470-30051-5 |
0-470-86781-7 |
0-470-86782-5 |
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Descrizione fisica |
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1 online resource (366 p.) |
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Altri autori (Persone) |
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Disciplina |
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Soggetti |
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Environmental toxicology |
Enantiomers - Toxicology |
Enantiomers - Separation |
Chromatographic analysis |
Capillary electrophoresis |
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Lingua di pubblicazione |
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Formato |
Materiale a stampa |
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Livello bibliografico |
Monografia |
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Note generali |
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Description based upon print version of record. |
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Nota di bibliografia |
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Includes bibliographical references and index. |
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Nota di contenuto |
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Chiral Pollutants: Distribution, Toxicity and Analysis by Chromatography and Capillary Electrophoresis; Dedication; Contents; Preface; Acknowledgements; About the Book; About the Authors; 1 Introduction; 1.1 The Importance of the Environment; 1.2 Environmental Pollutants; 1.3 Chirality and its Occurrence; 1.4 The Chemical Evolution of Chirality; 1.5 The Electronic Theory of Chirality; 1.6 The Importance of Chirality; 1.7 Nomenclature for Chiral Pollutants; 1.8 Chirality in Environmental Pollutants; 1.9 Chirality and its Consequences in the Environment |
1.10 The Enantiomeric Ratio and Fractions of Chiral Pollutants1.11 Methods for the Separation of Chiral Pollutants; 1.11.1 Chromatographic Methods; 1.11.2 The Capillary Electrophoretic Method; 1.12 Chiral Selectors in Chromatography and Capillary Electrophoresis; 1.13 Detection in Chromatography and Capillary |
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Electrophoresis; 1.14 Other Methods of Separation of Chiral Pollutants; References; 2 Chiral Pollutants: Sources and Distribution; 2.1 Introduction; 2.2 Sources of Contamination; 2.3 The Distribution of Chiral Pollutants; 2.3.1 Distribution in Water; 2.3.2 Distribution in Sediment |
2.3.3 Distribution in Soil2.3.4 Distribution in Air; 2.3.5 Distribution in Aquatic and Amphibian Biota; 2.3.6 Distribution in Terrestrial Biota; 2.3.7 Distribution in Food Products; 2.4 Conclusions; References; 3 Chiral Pollutants: Biotransformation, Biodegradation and Metabolism; 3.1 Introduction; 3.2 The Mechanisms of the Interactions of Chiral Xenobiotics in Biological Systems; 3.3 The Fate of Chiral Pollutants in the Ecosystem; 3.3.1 Biotransformation; 3.4 Photochemical Conversion; 3.5 Metabolism; 3.6 Conclusions; References; 4 The Enantioselective Toxicities of Chiral Pollutants |
4.1 Introduction4.2 The Enantioselective Toxicities of PCBs; 4.3 The Enantioselective Toxicities of HCH; 4.4 The Enantioselective Toxicities of Other Chlorinated Pesticides; 4.5 The Enantioselective Toxicities of Phosphorous Pesticides; 4.6 The Enantioselective Toxicities of Polyaromatic Hydrocarbons (PAHs); 4.7 The Enantioselective Toxicities of Other Xenobiotics; 4.8 The Enantioselective Toxicities of Drugs and Pharmaceuticals; 4.9 Conclusions; References; 5 Sample Preparation; 5.1 Introduction; 5.2 Sampling; 5.3 Filtration; 5.4 Homogenization; 5.5 Extraction |
5.5.1 The Extraction of Solid Samples5.5.2 The Extraction of Liquid Samples; 5.6 Membrane Methods in Sample Preparation; 5.7 Clean-up; 5.8 Pre-concentration; 5.9 Conclusions; References; 6 The Analysis of Chiral Pollutants by Gas Chromatography; 6.1 Introduction; 6.2 Chiral Selectors; 6.2.1 Structures and Properties; 6.2.2 Preparation and Commercialization; 6.2.3 Other Chiral GC CSPs; 6.3 Applications; 6.4 The Optimization of GC Conditions; 6.4.1 Mobile Phases; 6.4.2 Temperature; 6.4.3 The Column Dimensions; 6.4.4 Structures and Types of Chiral Selectors |
6.4.5 The Structures of Chiral Pollutants |
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Sommario/riassunto |
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Today, among the various chiral discrimination methods, chromatography and capillary electrophoresis techniques have become powerful tools in environmental analysis. Therefore, there is a need to describe the art of the determination of the chiral pollutants in the environmental matrices. This book provides the complete information on the types of the chiral pollutants, their toxicities and methods of determination by chromatography and capillary electrophoresis. |
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2. |
Record Nr. |
UNINA9910300754303321 |
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Autore |
Beecher Karl |
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Titolo |
Bad Programming Practices 101 : Become a Better Coder by Learning How (Not) to Program / / by Karl Beecher |
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Pubbl/distr/stampa |
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Berkeley, CA : , : Apress : , : Imprint : Apress, , 2018 |
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ISBN |
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Edizione |
[1st ed. 2018.] |
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Descrizione fisica |
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1 online resource (221 pages) : illustrations |
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Disciplina |
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Soggetti |
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Computer programming |
Software engineering |
Programming languages (Electronic computers) |
Programming Techniques |
Software Engineering |
Programming Languages, Compilers, Interpreters |
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Lingua di pubblicazione |
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Formato |
Materiale a stampa |
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Livello bibliografico |
Monografia |
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Nota di bibliografia |
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Includes bibliographical references and index. |
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Nota di contenuto |
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1. Fundamentals of Badness -- 2. Layout and Structure -- 3. Variables -- 4. Conditionals -- 5. Loops -- 6. Subroutines -- 7. Error-handling -- 8. Modules -- 9. Objects -- 10. Testing -- 11. Debugging -- Glossary -- Bibliography. |
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Sommario/riassunto |
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This book takes a humorous slant on the programming practice manual by reversing the usual approach: under the pretence of teaching you how to become the world’s worst programmer who generally causes chaos, the book teaches you how to avoid the kind of bad habits that introduce bugs or cause code contributions to be rejected. Why be a code monkey when you can be a chaos monkey? OK, so you want to become a terrible programmer. You want to write code that gets vigorously rejected in review. You look forward to reading feedback plastered in comments like "WTF???". Even better, you fantasize about your bug-ridden changes sneaking through and causing untold chaos in the codebase. You want to build a reputation as someone who writes creaky, messy, error-prone garbage that frustrates your colleagues. Bad Programming Practices 101 will help you achieve that goal a whole |
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lot quicker by teaching you an array of bad habits that will allow you to cause maximum chaos. Alternatively, you could use this book to identify those bad habits and learn to avoid them. The bad practices are organised into topics that form the basis of programming (layout, variables, loops, modules, and so on). It's been remarked that to become a good programmer, you must first write 10,000 lines of bad code to get it all out of your system. This book is aimed at programmers who have so far written only a small portion of that. By learning about poor programming habits, you will learn good practices. In addition, you will find out the motivation behind each practice, so you can learn why it is considered good and not simply get a list of rules. You will: Become a better coder by learning how (not) to program Choose your tools wisely Think of programming as problem solving Discover the consequences of a program’s appearance and overall structure Explain poor use of variables in programs Avoid bad habits and common mistakes when using conditionals and loops See how poor error-handling makes for unstable programs Sidestep bad practices related specifically to object-oriented programming Mitigate the effects of ineffectual and inadequate bug location and testing. |
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