|
|
|
|
|
|
|
/
/
/
/
/
/
/
/
/
/
/
/
/
/
/
/
|
|
|
|
|
|
|
|
![]() | | By: Walter Wagner ISBN: 1567000835 Publisher: Begell House Publishers Release Date: December, 1997 Bioscience book rank: 1375525
| This book is a must for all persons working in the design, manufacturing, installation and commissioning of thermal fluid (Heat Transfer Fluid) heating systems. It covers almost all the aspects of a thermal fluid system.<p>Also useful to the users and operators of the thermla fluid heating system.<p>I always discover something new whenever I read this book<p>Many thanks to Herr Wagner fo a masterpiece !!<p>Kersi K Dotiwalla<p>kersikdotiwalla@rediffmail.com |
 | | By: Simon Raw-Rees, Mick Kelly ISBN: 1903975204 Publisher: Search Press Release Date: January, 2003 Bioscience book rank: 509972
| |
![]() | | By: Yunus A. Cengel ISBN: 0072458933 Publisher: McGraw-Hill Companies Release Date: 01 November, 2002 Bioscience book rank: 1214976
| This book is very easy to read since it targets undergraduate, mostly sophomore or junior. Cengel tries to explain heat and mass transfer concept using long paragraph to read as an attempt to avoid formula derivation. <p>This attempt is a horrible approach since students will not truly understand the concepts. Proper derivation should be printed as a mathematical proof/background.<p>A lot of error in the printing caused the problems inconvenient to solve. The nice feature of this book is that it provides important data in both SI and English units.
The book presents the material in an easy to understand manner. The illustrations are superb and the main ideas and relavant equations are highlighted. The book however, contains numerous errors. There are problems at the end of chapters where different numbers are used in the solution than those given in the problem statement. These errors are widespread throughout the text. There are other problems with information given, for example equation 6-48 on page 374 where there are errors in the signs used.
Dr. Cengel presents a balanced coverage of the major topics in heat transfer. He also adds three chapters dealing with practical applications not found in most heat transfer text books. Dr. Cengel also includes numerous practical problems to help the reader learn and understand each concept. The problems are "real-life" in nature which aids the understanding of the more difficult concepts. The one short-fall in this text is that some of the more technical aspects helpful to the professional engineer are lost in the student-friendly translation. The text references the Engineering Equation Solver (EES) software, describe in an Appendix, which provides a useful means for computer analyses of the problems. |
 | | By: U.S. Government ISBN: 1422014916 Publisher: Progressive Management Release Date: 01 February, 2008 Bioscience book rank: 1409661
| |
 | | By: S.Y. Lakhal ISBN: Publisher: Elsevier Release Date: Bioscience book rank: 1387720
| |
 | | By: Terttu Tuomi-Grohn, Yrjo Engestrom ISBN: 008044296X Publisher: Pergamon Release Date: 14 August, 2003 Bioscience book rank: 1201964
| |
 | | By: Frederic Bushman ISBN: 0879696036 Publisher: Cold Spring Harbor Laboratory Press Release Date: 13 November, 2001 Bioscience book rank: 1335239
| The fact that lateral (or "horizontal") gene transfer can occur between living organisms is not only an established fact in modern genetics, it is also used by those who are against the practice of genetic engineering. The argument is usually set in the context of using transgenic strategies to transfer genes from two unrelated species. If performed in edible crops for example, this might induce, via lateral gene transfer, dangerous bacterial strains that evolve rapidly from the natural ones inside the human digestive system. Since the use of genetic engineering in agriculture is becoming more and more prevalent today, it is imperative by all concerned to find out in detail just what the fuss is all about concerning lateral gene transfer. The author has written a fine overview of this topic, and can serve both the student of genetics as well as those who are not experts in genetics but who have a need to understand it. The author reviews some of the molecular biology needed in the beginning chapters of the book. <p> The author introduces lateral DNA transfer as a phenomenon that can occur "surprisingly often" and can become stably incorporated in the recipient. His first example of it concerns the transfer of marine bacteriophages in the oceans. Each milliliter contains on the order of ten million viruses, most of these being bacteriophages, which infect bateria. When these phages grow, some of them pick up the genes of the host cell and transfer them via infection to a new cell. The transferred sequence then can become stable, and from experiments this happens one out of 100,000,000 times. This translates into 2 million billion times per second! The author also cites evidence for lateral DNA transfer from the sequencing of genomes. <p> Three chapters of the book are devoted to the occurrence of lateral DNA transfer in prokaryotes, one of the most important ones being antibiotic resistance in microbes. In addition, special blocks of genes called "pathogenicity islands" can be transferred by bacteriophages using transduction. He also overviews the genome sequencing evidence for lateral transfer in prokaryotes. Some of the more interesting topics discussed in these chapters include: 1. The 'transposons', some of which can direct lateral transfer, with the simplest (the simple insertion elements) now numbering in the thousands. To a reader with some knowledge of physics, it would be interesting to quantify what the "mobility" of a transposon is. In addition, transposons can mobilize pathogenicity islands. 2. The 'integrons', which are mobile gene arrays that also promote dispersal of antibiotic resistance genes. The author gives the reader a few research questions regarding integrons. 3. The discussion on the possibility that all genes present in certain DNA phages may be accessible to any phage, via intermediate hosts. 4. For newcomers to microbiology and genetics (like myself), the observation by the author that disease bacteria are only slightly different genetically from normal ones. 5. The ability of some bacteria to hide from the host immune system via a network of sugar chains. 6. The occurrence of 'gene transfer agents', which bring about spontaneous transfer of genetic markers between strains of bacteria. 7. The fact that most of the E.coli genome is a result of lateral transfer. 8. The "Selfish Operon Hypothesis". 9. The discussion of gene transfer between bacteria on the environment. The author reviews the research, and concludes that it certainly does occur naturally. Engineered genes will thus no doubt do the same, but would be a "small drop in the ocean of global DNA exchange", according to the author. <p> The next 5 chapters cover lateral transfer in eukaryotes, with retroviruses being the first important mechanism. The nuclear membrane must be traversed for eukaryotes, making lateral transfer more difficult. An entire chapter is devoted to the discussion of the role of lateral transfer in the AIDS epidemic. Mobile elements, called 'retrotransposons" also play a role in lateral transfer in eukaryotes, via the use of RNA. So also to 'DNA transposons' via the DNA-mediated pathways. Some interesting discussions in these chapters include: 1. Transfer via transient exposure of genomes to chromosomes containing transposons. 2. The process called "homing", by which transposition of mobile introns takes place. 3. The discussion of DNA transposons in maize. 4. The argument that lateral transfer must take place in animals in order to avoid extinction. 5. The question as to whether there are LTR retrotransposons, as well as mariner or hAT transposons in the human genome. 6. The role of lateral transfer in the evolution of the vertebrate immune system. <p> The last 3 chapters of the book discuss the occurrence of lateral transfer between species, the regulation of DNA transfer, the role of lateral transfer in the origin of sex, and some speculations by the author. Interesting discussions here include: 1. DNA transfer from bacteria to plants via crowngalls. 2. The T-DNA transfer system. 3. The possibility of gene transfer into mammalian tissues by eating DNA in food. The author concludes that further studies are needed to prove this possibility. 4. The different strategies employed by eukaryotes for supressing the efficiency of DNA transfer systems, the most interesting of these being RNA interference and cosuppression, the study of the latter originating in horticultural experiments. The author also lists several open questions in the study of RNA interference. 5. The antagonism between the immune system and lateral transfer in vertebrates. 6. The 'interferon' system and its ability to suppress virus replication. 7. The relation between genome size and lateral transfer. What is most surprising in this discussion is the sizes of some genomes relative to the human genome, some (lily plants for example) considerably larger. 8. The strategies that the immune system and pathogens employ to fight each other. Salmonella for example, employs a particularly clever strategy called "phase variation", which inverts a segment of the genome containing a transcription initiation sequence. <p> In the last paragraphs of the book, the author encourages the continued study of lateral gene transfer, not only for its impact in genetic engineering, but also for acquiring a understanding of how all lifeforms are connected to each other. |
 | | By: Ashim K. Datta ISBN: 0824707753 Publisher: CRC Release Date: 15 January, 2002 Bioscience book rank: 949307
| |
 | | By: Jan Szargut ISBN: 1853127531 Publisher: WIT Press Release Date: 14 April, 2005 Bioscience book rank: 1211911
| |
 | | By: Vivienne Cree ISBN: 0415204194 Publisher: Routledge Release Date: 22 January, 2001 Bioscience book rank: 1306890
| |
Related books in this category:
methods in molecular biology, PCR, RT-PCR and real-time quantitative PCR, Differential Display, recombinant DNA, gene therapy, virus protocols, lentivirus methods, gene targeting, mouse knock-out and knock-in, transgenic technology, phenotyping, gene delivery and transfer, transcriptional regulation, RNA methods, RNA Polymerase, gene expression, protein translation regulation, protein kinase, protein phosphorylation, genomics, genomics methods, epigenetics, DNA methylation, DNA sequencing, RNA interference, microarray Main book index: all categories
|
|
Copyright 2000-2007 Biowww.net, All rights reserved
|
|
|
|
|
|