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Norma Tecnica Colombiana Ntc 1269
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Book Synopsis Genetic Diversity in Plants by : Amir Muhammed
Download or read book Genetic Diversity in Plants written by Amir Muhammed and published by Springer Science & Business Media. This book was released on 2012-12-06 with total page 493 pages. Available in PDF, EPUB and Kindle. Book excerpt: For the last eighteen years we have been deeply involved in a cooperative effort with our Latin American colleagues in genetics, biochemistry, physiology, and molecular biology. We have been in close contact with scientists in a number of centers and have helped to organize symposia, workshops, and so forth, in an effort to accelerate their development and make their substantial work known. These symposia in Latin America have been quite successful. The fifteenth will take place in Brasilia in 1977. At the request of colleagues, we are in the process of developing a similar series in Asia. The first very successful symposium was held in Calcutta in 1973. We were most pleased when Dr. Amir Muhammed, Vice Chancellor of the University of Agriculture, Lyallpur suggested that we hold a symposium on a topic of great importance to Pakistan, Genetic Control of Diversity in Plants, under the auspices of the University of Agriculture. It is our hope that this symposium will be followed by additional ones in Pakistan as well as in other countries in the Far East. Leadership is quickly developing in the hands of outstanding scientists in these countries, and we appreciate the opportunity to cooperate with them. We are especially grateful to the Natiohal Science Foundation for makingPL- 480 funds available which made this symposium possible.
Download or read book Anthocyanins written by Kevin Gould and published by Springer Science & Business Media. This book was released on 2008-12-19 with total page 345 pages. Available in PDF, EPUB and Kindle. Book excerpt: In recent years there has been an unprecedented expansion of knowledge about anthocyanins pigments. Indeed, the molecular genetic control of anthocyanins biosynthesis is now one of the best understood of all secondary metabolic pathways. There have also been substantial improvements in analytical technology that have led to the discovery of novel anthocyanin compounds. Armed with this knowledge and the tools for genetic engineering, plant breeders are now introducing vibrant new colors into horticultural crops. The food industry has also benefited from the resurgence of interest in anthocyanins. A greater understanding of the chemistry of these pigments has led to improved methods for stabilizing the color of anthocyanins extracts, so that they are more useful as food colorings. Methods for the bulk production of anthocyanins from cell cultures have been optimized for this purpose. Possible benefits to human health from the ingestion of anthocyanin-rich foods have also been a major feature of the recent scientific literature. Anthocyanins are remarkably potent antioxidants, and their ingestion has been postulated to stave off the effects of oxidative stress. These pigments, especially in conjunction with other flavonoids, have been associated with reductions in the incidence and severity of many other non-infectious diseases, including diabetes, cardiovascular disease and certain cancers. An industry is developing around anthocyanins as nutritional supplements. Finally, there has been significant progress in our understanding of the benefits of anthocyanins to plants themselves. Originally considered an extravagance without a purpose, anthocyanins are now implicated in multifarious vital functions. These include the attraction of pollinators and frugivores, aposematic defense from herbivores, and protection from environmental stressors such as strong light, UVB, drought, and free radical attacks. Anthocyanins are evidently highly versatile, and enormously useful to plants. This book covers all aspects of the biosynthesis and function of anthocyanins (and related compounds such as proanthocyanidins) in plants, and their applications in agriculture, food products, and human health. Featured areas include their relevance to: * Plant stress * Flower and fruit color * Human health * Wine quality and health attributes * Food colorants and ingredients * Cell culture production systems * The pastoral sector
Book Synopsis Edinburgh Gazette by : Stationery Office, The
Download or read book Edinburgh Gazette written by Stationery Office, The and published by . This book was released on 1990-12-31 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: Company Law Official Notifications Supplement
Book Synopsis Author Catalog by : Library of Congress
Download or read book Author Catalog written by Library of Congress and published by . This book was released on 1953 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis 101 Life Skills Games for Children by : Bernie Badegruber
Download or read book 101 Life Skills Games for Children written by Bernie Badegruber and published by Turner Publishing Company. This book was released on 2011-01-01 with total page 247 pages. Available in PDF, EPUB and Kindle. Book excerpt: How do you teach tolerance, self-awareness, and responsibility? How can you help children deal with fear, mistrust, or aggression? Play a game with them! Games are an ideal way to help children develop social and emotional skills; they are exciting, relaxing, and fun. 101 LIFE SKILLS GAMES FOR CHILDREN: LEARNING, GROWING, GETTING ALONG (Ages 6-12) is a resource that can help children understand and deal with problems that arise in daily interactions with other children and adults. These games help children develop social and emotional skills and enhance self-awareness. The games address the following issues: dependence, aggression, fear, resentment, disability, accusations, boasting, honesty, flexibility, patience, secrets, conscience, inhibitions, stereotypes, noise, lying, performance, closeness, weaknesses, self confidence, fun, reassurance, love, respect, integrating a new classmate, group conflict. Organized in three main chapters: (I-Games, You-Games and We-Games), the book is well structured and easily accessible. It specifies an objective for every game, gives step-by-step instructions, and offers questions for reflection. It provides possible variations for each game, examples, tips, and ideas for role plays. Each game contains references to appropriate follow-up games and is illustrated with charming drawings.
Download or read book Freshwater Quality written by P. J. Boon and published by . This book was released on 1997 with total page 552 pages. Available in PDF, EPUB and Kindle. Book excerpt: Based on a conference organized by the Research and Advisory Services Directorate of Scottish Natural Heritage, this text provides an account of current interpretations of freshwater quality. It describes a range of techniques for its evaluation, and discusses ways in which the principles of quality assessment can be applied.
Download or read book Anthocyanins in Leaves written by and published by Academic Press. This book was released on 2002-12-20 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: Anthocyanins are the pigments in leaves and fruits that give them their colour; for example, the red colour of strawberries, or red leaves in autumn. Although these pigments are especially prominent in the autumn foliage of deciduous trees and in the growth flushes of tropical rainforest plants, they are also found in the leaves of many species after exposure to environmental or biotic stresses. Although the control of anthocyanin synthesis in vegetative organs has long been studied, and is a model system in plant molecular genetics, potential functions of these pigments in leaves have been largely ignored. This volume pulls together new information from experts in the fields of genetics, biochemistry, molecular biology, physiological ecology and plant development, providing a platform to discuss putative hypotheses for anthocyanin function in these vegetative organs.
Book Synopsis Gender Justice, Citizenship & Development by :
Download or read book Gender Justice, Citizenship & Development written by and published by IDRC. This book was released on with total page 367 pages. Available in PDF, EPUB and Kindle. Book excerpt: Printbegrænsninger: Der kan printes kapitelvis.
Book Synopsis A Monograph of the Baltic Amber Bees and Evolution of the Apoidea (Hymenoptera) by : Michael S. Engel
Download or read book A Monograph of the Baltic Amber Bees and Evolution of the Apoidea (Hymenoptera) written by Michael S. Engel and published by . This book was released on 2001 with total page 196 pages. Available in PDF, EPUB and Kindle. Book excerpt: [English abstract]. The bees found as Baltic amber inclusions are revised and the history of studies on these fossils is briefly reviewed. In total this subtropical Eocene fauna contains 36 species and 18 genera, all extinct. These are classified here into nine tribes, six subfamilies, and five families of which six tribes and one family are unknown in the modern fauna. The following taxa are described as new to science: Paleomelittidae, new family; Boreallodapini, Electrobombini, Eomacropidini, Melikertini, Protolithurgini, new tribes; Ctenoplectrellina, new subtribe; Boreallodape, Electrobombus, Electrolictus, Eomacropis, Glaesosmia, Liotrigonopsis, Melissites, Paleomelitta, Protolithurgus, Succinapis, Thaumastobombus, new genera; Boreallodape baltica, B. mollyae, B. striebichi, Ctenoplectrella cockerelli, C. grimaldii, Electrapis krishnorum, Electrobombus samlandensis, Electrolictus antiquus, Eomacropis glaesaria, Glaesosmia genalis, Glyptapis densopunctata, G. disareolata, Liotrigonopsis rozeni, Melikertes clypeatus, Melissites trigona, Paleomelitta nigripennis, Protobombus basilaris, Protolithurgus ditomeus, Succinapis goeleti, S. micheneri, S. proboscidea, Thaumastobombus andreniformis, new species (seven new family-, 11 new genus-, and 22 new species-group taxa). The genus Electrapis is found to be paraphyletic and the subgenera Melikertes, Roussyana, and Protobombus are given generic status outside of Electrapis. The subtribe Electrapina is elevated to tribal rank among the corbiculate Apinae and the subfamily Glyptapinae of Cockerell is reduced to subtribal rank within Osmiini. The genera Chalcobombus and Sophrobombus are newly synonymized with Protobombus. Glyptapis reducta Cockerell is synonymized with G. fuscula Cockerell, Electrapis minuta Kelner-Pillault with Apis palmnickenensis Roussy, Ctenoplectrella splendens Kelner-Pillault and C. dentata Salt both with C. viridiceps Cockerell, Electrapis apoides Manning and Chalcobombus humilis Cockerell both with Protobombus indecisus Cockerell, and Electrapis bombusoides Kelner-Pillault with E. tornquisti Cockerell (new synonymies). The following new combinations are proposed: Electrapis martialis (Cockerell), Melikertes proavus (Menge), M. stilbonotus (Engel), Kelneriapis eocenica (Kelner-Pillault), Protobombus fatalis (Cockerell), P. hirsutus (Cockerell), and Electrapis martialis (Cockerell) (new combinations). A lectotype is designated for Electrapis minuta Kelner-Pillault and neotypes designated for Apis meliponoides Buttel-Reepen, A. palmnickenensis Roussy, Chalcobombus humilis Cockerell, C. hirsutus Cockerell, C. martialis Cockerell, Ctenoplectrella dentata Salt, C. viridiceps Cockerell, Electrapis tornquisti Cockerell, Glyptapis reticulata Cockerell, G. neglecta Salt, Protobombus indecisus Cockerell, P. tristellus Cockerell, and Sophrobombus fatalis Cockerell. The subfamily Xylocopinae is recorded for the first time from amber, and the families Halictidae and Melittidae are confirmed as occurring in Baltic amber. The oldest fossils of the Halictidae, Megachilidae (Lithurginae and Megachilinae), Melittidae, and Xylocopinae are reported and described herein. Keys are presented for the identification of the Baltic amber bees. Three new recent taxa are also proposed: Penapini, Redivivini, and Meliturgulini (new tribes). Cladistic analyses of the Lithurginae, Xylocopinae, and corbiculate Apinae are presented. Preliminary investigation of lithurgine relationships demonstrates that the fossil, Protolithurgus, is sister to extant genera of the subfamily and that Lithurgus s.s. is likely paraphyletic with respect to Lithurgopsis and Microthurge. Xylocopine relationships are generally in accord with those previously proposed: Xylocopini sister to all other tribes and Manueliini sister to the abruptly narrowed mandible tribes (i.e., Ceratinini, Allodapini, and Boreallodapini). Boreallodapini, despite some apparently apomorphic similarities with Ceratinini, is supported as sister to Allodapini. The paleontological evidence for corbiculate bee phylogeny reinforces traditional concepts over relationships of these tribes and contradicts recent molecular studies. Two extinct corbiculate tribes are based on specimens that exhibit worker morphologies indicative of advanced eusocial behavior and are related to the living, advanced eusocial tribes Apini and Meliponini, supporting a hypothesis of a single origin for this behavioral characteristic. The composition of the Eocene bee fauna of Europe is discussed. The fauna is predominantly composed of long-tongued bees, but some short-tongued bees are represented in the families Halictidae, Paleomelittidae, and Melittidae. Bees in Baltic amber are generally allied with groups currently inhabiting sub-Saharan Africa and southeast Asia, a biogeographic pattern common to many Baltic amber groups. The phylogeny and origin of bees are discussed. The bees are a derived, monophyletic group of the spheciform wasps and presumably arose sometime in the earliest mid-Cretaceous after the origin of angiosperms. Reports of bees from Jurassic strata or earlier are all refuted. All available evidence supports the idea that bees originated shortly after flowering plants and diversified into higher lineages contemporaneously with the radiations of angiosperms. Major bee lineages (i.e., families) were thus presumably established by the late Cretaceous. A catalog of bees presently known in amber and copal is appended as is a catalog of family- and genus-group names for fossil bees (both amber inclusions and compression fossils). A preliminary outline of the tribal classification of Recent and fossil bees with their geological distribution is presented (with three new family-group taxa for living bees).
Download or read book Eurocriminology written by and published by . This book was released on 1992 with total page 140 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Annotated Bibliography on Child Labour by :
Download or read book Annotated Bibliography on Child Labour written by and published by International Labour Organization. This book was released on 2003 with total page 144 pages. Available in PDF, EPUB and Kindle. Book excerpt: The aim of this bibliography on child labour was to assemble the best of the rapidly increasing literature and research material in recent years and make it accessible. The focus is from 1995 to 2002 although a few authoritative earlier sources have been included. Three basic selection criteria were applied: the material had to be considered representative; relevant and to present sources that had been previously overlooked.
Book Synopsis Adoptive Families in a Diverse Society by : Katarina Wegar
Download or read book Adoptive Families in a Diverse Society written by Katarina Wegar and published by Rutgers University Press. This book was released on 2006 with total page 308 pages. Available in PDF, EPUB and Kindle. Book excerpt: Adoptive Families in a Diverse Society brings together twenty-one prominent scholars to explore the experience, practice, and policy of adoption in North America. While much existing literature tends to stress the potential problems inherent in non-biological kinship, the essays in this volume consider adoptive family life in a broad and balanced context. Bringing new perspectives to the topics of kinship, identity, and belonging, this path-breaking book expands more than our understandings of adoptive family life; it urges us to rethink the limits and possibilities of diversity and assimilation in American society.
Book Synopsis The Hymenoptera of Costa Rica by : Paul E. Hanson
Download or read book The Hymenoptera of Costa Rica written by Paul E. Hanson and published by . This book was released on 1995 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Old Norse Images of Women by : Jenny Jochens
Download or read book Old Norse Images of Women written by Jenny Jochens and published by University of Pennsylvania Press. This book was released on 2016-11-11 with total page 344 pages. Available in PDF, EPUB and Kindle. Book excerpt: Working from the Poetic Edda, the Prose Edda, and Old Norse prose narratives and laws, Jenny Jochens argues for an underlying cultural continuum of a pagan pantheon and a set of heroic figures shared by the Germanic tribes in Europe, Britain, Scandinavia, and Iceland from A.D. 500 to 1500. Old Norse Images of Women explores the female half of this legacy, which involves images both divine and human. In a society marked by sharp gender divisions, women were frequently portrayed as one of four conventional types. The warrior woman was exemplified by the valkyrie, sheildmaiden, or maiden king. The wise woman was a prophetess or sorceress. The avenger is best seen in Gudrun, whose focus of revenge shifted from husband to brothers. Last, there were the whetters or inciters, who appear both in the Continental setting as Brynhildr and as ubiquitous figures in medieval Icelandic literature, ranging from Norwegian queens to humble milkmaids.
Book Synopsis Catalogue of Bees (Hymenoptera, Apoidea) in the Neotropical Region by : Jesus Santiago Moure
Download or read book Catalogue of Bees (Hymenoptera, Apoidea) in the Neotropical Region written by Jesus Santiago Moure and published by . This book was released on 2007 with total page 1058 pages. Available in PDF, EPUB and Kindle. Book excerpt: Andreninae. Apinae. Colletinae. Halictinae. megachininae. Nomina nuda and unavailable names in Neotropical Apidae (excl. Meliponini). Index of taxa.
Book Synopsis The Legend of Brynhild by : Theodore Murdock Andersson
Download or read book The Legend of Brynhild written by Theodore Murdock Andersson and published by . This book was released on 1980 with total page 280 pages. Available in PDF, EPUB and Kindle. Book excerpt: Brynhild is the paramount figure of Germanic legend, but she has been subordinated more often than not to the male object of her passion. Her story is thus normally referred to as the legend of Sigurd or, in German circles, the legend of Siegfried. The title of this book is intended to make the point that the legend sings principally of the woman, not the man, a view that I argue specifically at the beginning of Chapter 2. My task has been to examine the sometimes fragmentary and always refractory medieval accounts of Brynhild with a view to extracting from them a better appreciation of her personality. This task made it necessary to reopen the long-standing debate on the textual relationships of the major literary documents (Poetic Edda, Vǫlsunga saga, Pioreks saga, and Nibelungenlied). As a consequence the book has become a general reassessment of the so-called Nibelung question, a good part of which it attempts to summarize and elucidate.
Book Synopsis Actions and Structure by : Nigel Fielding
Download or read book Actions and Structure written by Nigel Fielding and published by SAGE Publications Limited. This book was released on 1988-10 with total page 216 pages. Available in PDF, EPUB and Kindle. Book excerpt: Social scientists have always recognised a divergence between approaches which emphasise the constraining power of social structure and those which interpret society through the cumulative effects of actions of individuals. In recent years there has been renewed interest in the latter through the micro-sociology of everyday life. Social scientists are now taking stock of the implications of micro-sociological research for the analysis of structure and the macro-level theory of society. In Actions and Structure the value of micro-sociological research for the analysis of social order is assessed. Individual chapters evaluate new research approaches from discourse and conversational analysis, mathematical, interactionist and phenomenol
