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Author: Miguel Angel Castaneda Reyes
Publisher: Grin Publishing
ISBN: 9783668439528
Category :
Languages : es
Pages : 64
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Book Description
Tesis de Master del ano 2016 en eltema Ciencias de la computacion - Aplicada, Idioma: Espanol, Resumen: En esta tesis presento la comparacion de dos enfoques para resolver el problema de la busqueda de motifs en secuencias de ADN mediante el uso de algoritmos geneticos, el primer enfoque hace una busqueda por posicion, que es evaluar los patrones obtenidos de posiciones iniciales y determinar si es el motif a encontrar en las secuencias, el segundo enfoque es la busqueda por patron, que es evaluar todas las posibles cadenas que se pueden formar con una longitud fija de nucleotidos e ir comparando de principio a fin dentro de las secuencias de ADN para encontrar el motif. Los motifs son una clase de patrones en el contexto del analisis de secuencias biologicas y son de mucha importancia porque se sabe que ciertas proteinas especiales llamadas TF (Transcription Factors) o Factores de Transcripcion, se unen con algunas subcadenas en el ADN formando los motifs o TFBS (Transcription Factors Binding Sites) en espanol Sitios de Union de Factores de Transcripcion y con estas uniones se activa o desactiva el proceso de expresion genetica, mediante el cual los genes son transcritos en forma de ARN mensajero (mARN) llamado ribosoma, el ribosoma toma una secuencia de nucleotidos y los traduce en una cadena de aminoacidos en el orden establecido por el mARN, formando cadenas polimericas lineales de una proteina. Los algoritmos geneticos son modelos computacionales que simulan los procesos biologicos de la reproduccion de las especies y nos ayudan a resolver problemas de optimizacion y busqueda. En este comparativo entre la busqueda de motifs por patrones y la busqueda de motifs por posiciones se pretende determinar que metodo es mas eficiente para encontrar los patrones con mayor exactitud, cual es su complejidad computacional? y como se comporta generacion tras generacion en el algoritmo genetico.
Author: Miguel Angel Castaneda Reyes
Publisher: Grin Publishing
ISBN: 9783668439528
Category :
Languages : es
Pages : 64
Get Book Here
Book Description
Tesis de Master del ano 2016 en eltema Ciencias de la computacion - Aplicada, Idioma: Espanol, Resumen: En esta tesis presento la comparacion de dos enfoques para resolver el problema de la busqueda de motifs en secuencias de ADN mediante el uso de algoritmos geneticos, el primer enfoque hace una busqueda por posicion, que es evaluar los patrones obtenidos de posiciones iniciales y determinar si es el motif a encontrar en las secuencias, el segundo enfoque es la busqueda por patron, que es evaluar todas las posibles cadenas que se pueden formar con una longitud fija de nucleotidos e ir comparando de principio a fin dentro de las secuencias de ADN para encontrar el motif. Los motifs son una clase de patrones en el contexto del analisis de secuencias biologicas y son de mucha importancia porque se sabe que ciertas proteinas especiales llamadas TF (Transcription Factors) o Factores de Transcripcion, se unen con algunas subcadenas en el ADN formando los motifs o TFBS (Transcription Factors Binding Sites) en espanol Sitios de Union de Factores de Transcripcion y con estas uniones se activa o desactiva el proceso de expresion genetica, mediante el cual los genes son transcritos en forma de ARN mensajero (mARN) llamado ribosoma, el ribosoma toma una secuencia de nucleotidos y los traduce en una cadena de aminoacidos en el orden establecido por el mARN, formando cadenas polimericas lineales de una proteina. Los algoritmos geneticos son modelos computacionales que simulan los procesos biologicos de la reproduccion de las especies y nos ayudan a resolver problemas de optimizacion y busqueda. En este comparativo entre la busqueda de motifs por patrones y la busqueda de motifs por posiciones se pretende determinar que metodo es mas eficiente para encontrar los patrones con mayor exactitud, cual es su complejidad computacional? y como se comporta generacion tras generacion en el algoritmo genetico.
Author: Ibrokhim Y. Abdurakhmonov
Publisher: BoD – Books on Demand
ISBN: 9535124552
Category : Science
Languages : en
Pages : 312
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Book Description
Plant genomics aims to sequence, characterize, and study the genetic compositions, structures, organizations, functions, and interactions/networks of an entire plant genome. Its development and advances are tightly interconnected with proteomics, metabolomics, metagenomics, transgenomics, genomic selection, bioinformatics, epigenomics, phenomics, system biology, modern instrumentation, and robotics sciences. Plant genomics has significantly advanced over the past three decades in the land of inexpensive, high-throughput sequencing technologies and fully sequenced over 100 plant genomes. These advances have broad implications in every aspect of plant biology and breeding, powered with novel genomic selection and manipulation tools while generating many grand challenges and tasks ahead. This Plant genomics provides some updated discussions on current advances, challenges, and future perspectives of plant genome studies and applications.
Author: Food and Agriculture Organization of the United Nations
Publisher: Food & Agriculture Org.
ISBN: 9251082626
Category : Political Science
Languages : en
Pages : 182
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Book Description
Well-managed genebanks both safeguard genetic diversity and make it available to breeders. The Genebank Standards for Plant Genetic Resources for Food and Agriculture lay down the procedures for conserving plant genetic resources.These voluntary Standards set the benchmark for current scientific and technical best practices, and support the key international policy instruments for the conservation and use of plant genetic resources.
Author: Walahfrid Strabo
Publisher:
ISBN: 9780913196090
Category :
Languages : en
Pages : 91
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Book Description
Facsimile and English translation of the "down-to-earth practical but very artful" 9th century manuscript gardening manual by Walahfrid. Includes a biography by W. Blunt, a bibliography of editions of the Hortulus by the editor, and identifications of the plants mentioned in the Hortulus. The translation is illustrated with modern linocuts by Henry Evans.
Author: Allan F. O'Connell
Publisher: Springer Science & Business Media
ISBN: 4431994955
Category : Science
Languages : en
Pages : 279
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Book Description
Remote photography and infrared sensors are widely used in the sampling of wildlife populations worldwide, especially for cryptic or elusive species. Guiding the practitioner through the entire process of using camera traps, this book is the first to compile state-of-the-art sampling techniques for the purpose of conducting high-quality science or effective management. Chapters on the evaluation of equipment, field sampling designs, and data analysis methods provide a coherent framework for making inferences about the abundance, species richness, and occupancy of sampled animals. The volume introduces new models that will revolutionize use of camera data to estimate population density, such as the newly developed spatial capture–recapture models. It also includes richly detailed case studies of camera trap work on some of the world’s most charismatic, elusive, and endangered wildlife species. Indispensible to wildlife conservationists, ecologists, biologists, and conservation agencies around the world, the text provides a thorough review of the subject as well as a forecast for the use of remote photography in natural resource conservation over the next few decades.
Author: A.S. Pullin
Publisher: Springer Science & Business Media
ISBN: 9401112827
Category : Science
Languages : en
Pages : 523
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Book Description
This book was conceived to mark the Silver Jubilee of the British Butterfly Conservation Society. Interest in the conservation of butterflies has increased so rapidly that it is difficult to relate to the situation 25 years ago. Butterflies were on the decline in Britain, Europe and elsewhere but we lacked data on the extent of the decline and the underlying reasons, leaving us unable to implement effective conservation measures. An early recognition of the plight of British butterflies and moths led to the foundation of the society by a small group of conservationists in 1968. Today the society has over 10000 members, owns a number of reserves and sponsors research, conservation and monitoring activities at the local and national level. As part of the Silver Jubilee celebrations an international symposium was held at Keele University in September 1993 entitled 'Ecology and Conservation of Butterflies'. This symposium clearly showed how much important work has been done in recent years and also gave me the impression that the subject had reached a watershed. This was not because the decline of butterflies has stopped or even slowed down, far from it, the threat to our butterflies continues to increase from habitat destruction and intensification of land use. The watershed is in our understanding of the relationship between butterflies and their habitat.
Author: Angela Dimitrakaki
Publisher: I.B. Tauris
ISBN: 9781860646553
Category : Art
Languages : en
Pages : 128
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Book Description
This richly illustrated work offers a compelling account of contemporary art, culture, gender, and difference in the changing geographies of Europe. Writers from Britain and Estonia draw on art history, geography, social history, and cultural studies to engage current debates about the production and reception of new art across cultural frames.
Author: Roderick D.M. Page
Publisher: John Wiley & Sons
ISBN: 1444313363
Category : Science
Languages : en
Pages : 352
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Book Description
The study of evolution at the molecular level has given the subject of evolutionary biology a new significance. Phylogenetic 'trees' of gene sequences are a powerful tool for recovering evolutionary relationships among species, and can be used to answer a broad range of evolutionary and ecological questions. They are also beginning to permeate the medical sciences. In this book, the authors approach the study of molecular evolution with the phylogenetic tree as a central metaphor. This will equip students and professionals with the ability to see both the evolutionary relevance of molecular data, and the significance evolutionary theory has for molecular studies. The book is accessible yet sufficiently detailed and explicit so that the student can learn the mechanics of the procedures discussed. The book is intended for senior undergraduate and graduate students taking courses in molecular evolution/phylogenetic reconstruction. It will also be a useful supplement for students taking wider courses in evolution, as well as a valuable resource for professionals. First student textbook of phylogenetic reconstruction which uses the tree as a central metaphor of evolution. Chapter summaries and annotated suggestions for further reading. Worked examples facilitate understanding of some of the more complex issues. Emphasis on clarity and accessibility.
Author: William J. Sutherland
Publisher: John Wiley & Sons
ISBN: 0470999349
Category : Science
Languages : en
Pages : 296
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Book Description
Textbooks on the principles of conservation biology abound. Yet, how does one put this theoretical knowledge into practice? The aim of The Conservation Handbook is to provide clear guidance on the implementation of conservation techniques. The wide range of methods described include those for ecological research, monitoring, planning, education, habitat management and combining conservation with development. Nineteen case studies illustrate how the methods have been applied. The book will be of interest to conservation biology students and practicing conservationists worldwide. For each copy of the book sold, another copy will be sent free to a practicing conservationist outside Western Europe, North America, Australia, New Zealand and Japan. Foreword by E. O. Wilson. Concise, practical guide packed full of ideas, methods and advice. Provides solutions for the main conservation problems most commonly encountered. 18 global case studies illustrate the application of techniques. The Conservation Handbook Donations Project this book is being sent free to those practising conservationists outside Western Europe, North America, Australia, New Zealand and Japan who are otherwise unlikely to obtain a copy. These copies are provided at cost price by Blackwell Science, the publisher, and paid for with the author''s royalties. Each book sold means another one will be donated.
Author: Makoto Sei Watanabe
Publisher: L'Arcaedizioni
ISBN:
Category : Architecture
Languages : en
Pages : 152
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Book Description
The works of Makoto Sei Watanabe combine the functionality of aesthetic experience and the calculated organization of structures with the evocation of deep ancestral memories.
