Book Description
Includes 45 case studies and essays under the topics: Earth watch; Health watch; A closer look at ...; Scientific inquiry; Links to everyday life.
Author : Teresa Audesirk
Publisher : Pearson
Page : 0 pages
File Size : 39,10 MB
Release : 2011
Category : Biologie
ISBN : 9780321598462
Includes 45 case studies and essays under the topics: Earth watch; Health watch; A closer look at ...; Scientific inquiry; Links to everyday life.
Author : J. Esteban Hernández Bermejo
Publisher : Food & Agriculture Org.
Page : 372 pages
File Size : 36,8 MB
Release : 1994
Category : Business & Economics
ISBN : 9789251032176
About neglected crops of the American continent. Published in collaboration with the Botanical Garden of Cord�ba (Spain) as part of the Etnobot�nica92 Programme (Andalusia, 1992)
Author : M.H. Zimmermann
Publisher : Springer Science & Business Media
Page : 548 pages
File Size : 34,42 MB
Release : 2012-12-06
Category : Science
ISBN : 3642661610
When WILHELM RUHLAND developed his plan for an Encyclopedia of Plant Physiol ogy more than three decades ago, biology could still be conveniently subdivided into classical areas. Even within plant physiology, subdivisions were not too difficult to make, and general principles could be covered sufficiently in the two introductory volumes of the Encyclopedia on the physical and chemical basis of cell biology. But the situation changed rapidly even during the 12-year publication period of the Encyclopedia (1955-1967). The new molecular direction of genetics and structural research on biopolymers had an integrating effect on all other biological fields, including plant physiology, and it became increasingly difficult to keep previously distinct areas separated. RUHLAND'S overall plan included 18 volumes and about 22,000 pages. It covered the entire field of plant physiology, in most cases from the very beginning. But, as each volume appeared, it was clear that its content would soon be outdated.
Author : John H. Vandermeer
Publisher : CRC Press
Page : 279 pages
File Size : 10,10 MB
Release : 2002-12-03
Category : Nature
ISBN : 1420039881
Tropical areas present ecological, cultural, and political problems that demand analysis that is distinct from general ecological analysis. The tropical environment is special in many ways, from the lack of a biological down season (winter), to generally poor soil conditions, to a reliance on traditional methods of agriculture in an undeveloped society. Presenting a broad range of approaches to agroecosystem analysis, this book addresses specific ecological issues associated with agricultural production, examines two case studies of agricultural transformation and its effect on biodiversity, and discusses key landscape relationships between agroecosystems, wildlife, and human disease.
Author : Omar Abdulkadir Sh. Abdurahman
Publisher : vdf Hochschulverlag AG
Page : 240 pages
File Size : 42,10 MB
Release : 2004
Category : Medical
ISBN : 9783728125279
Camel husbandry is becoming increasingly important in the arid zones of Africa. The camel has long been the mainstay of pastoral societies due to its drought tolerance, reliable milk and meat supply and ability to feed on a wide variety of plants. In the last few years, however, camels are also seen more and more in semi-arid rangelands, especially where overgrazing has depleted the grasses and increased the relative importance of shrubs. In spite of this growing importance, research on camel was limited until the early seventies to studies on topics such as anatomy, physiology, behaviour and to a lesser extent disease. However, since the early eighties the interest of the research on camels has been growing. Most advances have been made in reproductive physiology, veterinary and in the biochemistry of milk, while practical oriented research on improving camel productivity by developing marketable products targeting small and middle enterprises regrettably received little attention. This book attempts to fill this gap. The authors have profound knowledge on use of the camel as milk and meat animal. This knowledge is based on results of research work carried out in partnership with universities, camel farmers and pastoralists in Eastern African countries. The first part deals with chemical composition, technological properties, hygienic safety and quality control of camel milk. This is followed by the presentation of processing methods for different dairy products which should allow smallholder producers to process milk on farm or in centralised small scale dairy unit. In the second part special knowledge gained in slaughtering, deboning and processing of camels on-site over several years of long-term stays on the Ol Maisor Farm in Kenya is presented. During the development of camel meat products the authors set a great value on the keeping quality of the products as well as creating a wide range of product groups with low and high cost for the local market and a good shelf life. The book presents background information and recipes on the manufacture of camel milk and meat products and it is intended as a practical guide to professionals, government bodies and development agencies interested in building up small scale processing units for camel meat and milk products. It is hoped that it may also serve as a reference for extension personal working with camel herders, food scientists and students. The book is concerned entirely with the one-humped camel (Camelus dromedarius). The term "camel" should, therefore, be taken to refer to this species unless specifically stated otherwise.
Author : Sukhada Mohandas
Publisher : Springer
Page : 345 pages
File Size : 10,61 MB
Release : 2016-09-08
Category : Science
ISBN : 9811015856
Bananas and plantains are among the most important food and cash crops in the world. They are cultivated in more than 135 countries, across the tropics and subtropics, with an annual global production of ca. 130 million metric tonnes. Though bananas are one of the most important components of food security in many developing countries, banana production is threatened by both abiotic and biotic stresses. These include a wide range of diseases and pests, such as bunchy top virus, burrowing nematodes, black Sigatoka or black leaf streak, Fusarium wilt, etc. In recent years, considerable progress has been made and several biotechnological and genomic tools have been employed to help understand and unravel the mysterious banana genome. Molecular and genomic studies have helped to decipher the Musa genome and its evolution. Genetic linkage map and whole genome sequencing of both Musa acuminata and Musa balbisiana (progenitors of cultivated banana) have completely changed the way of thinking and the approach on banana crop improvement. Whole-genome sequencing has helped to improve the selection of quantitative traits such as yield, as well as the selection of optimal parents for developing required hybrids in breeding programs. Gene isolation and the analysis of mutants have helped in the characterization of genes of agronomic value and the associated regulatory sequences. With the advent of molecular markers and new statistical tools, it is now possible to measure the diversity, identify genes and useful alleles linked to important agronomic traits. Further these alleles can be incorporated into cultivars through marker assisted selection or through transgenic approach. Transgenic approaches are potential tools for direct transfer of these genes into popular cultivars, which are generally not amenable for conventional breeding techniques, in specific with crops such as bananas which are sterile, triploid and heterozygous thereby making it difficult to reconstruct the recurrent genotypes in banana. Transgenic techniques thus have helped overcome the difficulty of working with sterile, triploid banana crop. In the last five years, enormous amount of new information and techniques have been generated for banana. A comprehensive book entitled “Banana: Genomics and Transgenic Approaches for Genetic improvement” on banana genomics, latest transgenic technologies and tools available for improved crop development in banana will address all these requirements.
Author : Ramesh C Gupta
Publisher : Elsevier
Page : 1233 pages
File Size : 44,7 MB
Release : 2011-04-28
Category : Medical
ISBN : 0080481604
Veterinary Toxicology, 2nd edition is a unique single reference that teaches the basic principles of veterinary toxicology and builds upon these principles to offer an essential clinical resource for those practicing in the field. This reference book is thoroughly updated with new chapters and the latest coverage of topics that are essential to research veterinary toxicologists, students, professors, clinicians and environmentalists. Key areas include melamine and cyanuric acid, toxicogenomics, veterinary medical geology, toxic gases, toxicity and safety evaluation of new veterinary pharmaceuticals and much more. The 2nd edition of this popular book represents the collective wisdom of leading contributors worldwide and continues to fill an undeniable need in the literature relating to veterinary toxicology. - New chapters covering important and timely topics such as melamine and cyanuric acid, toxicogenomics, toxic gases and veterinary medical geology - Expanded look at international topics, such as epidemiology of animal poisonings, regulatory guidelines and poisonous plants in Europe - Heavily contributed book with chapters written by qualified and well-experienced authorities across all areas of veterinary toxicology - Problem solving strategies are offered for treatment as well as in-depth knowledge of the basic mechanisms of veterinary toxicology
Author : Geoff Thompson
Publisher : John Benjamins Publishing Company
Page : 432 pages
File Size : 11,5 MB
Release : 2014-02-04
Category : Language Arts & Disciplines
ISBN : 9027270724
It is now an acknowledged fact in the world of linguistics that the concept of evaluation is crucial, and that there is very little – if any – discourse that cannot be analyzed through the prism of its evaluative content. This book presents some of the latest developments in the study of this phenomenon. Released more than a decade later than Hunston and Thompson’s (2000) Evaluation in Text, Evaluation in Context is designed as its sequel, in an attempt to continue, update and extend the different avenues of research opened by the earlier work. Both theoretical and empirical studies on the topic are presented, with the intention of scrutinizing as many of its dimensions as possible, by not only looking at evaluative texts, but also considering the aspects of the discursive context that affect the final evaluative meaning at both the production and reception stages of the evaluative act. The editors’ main objective has been to gather contributions which investigate the manifold faces and phases of evaluation by presenting a wide variety of perspectives that include different linguistic theories (e.g. Axiological Semantics, Functionalism or Politeness Theory), different levels of linguistic description (e.g. phonological, lexical or semantic), and different text types and contexts (e.g. the evaluation found in ironic discourse, the multimodality of media discourse or the world of politics, just to name a few). The volume can be of use not only for scholars who study the evaluative function of language, but also for students who wish to pursue research in the area.
Author : Stephen Coleman
Publisher : Edward Elgar Publishing
Page : 511 pages
File Size : 20,54 MB
Release : 2023-11-03
Category : Political Science
ISBN : 1800377584
This thoroughly revised second edition Handbook examines the latest knowledge and perspectives on digital politics. Leading scholars explore the expansion of digital technologies, channels and styles as it shapes political dynamics.
Author : Sanz, Nuria (UNESCO)
Publisher : UNESCO Publishing
Page : 231 pages
File Size : 10,41 MB
Release : 2015-09-07
Category :
ISBN : 9231001078