Libros de ciencias, página 41 de 2691

After an Introduction that expounds the author's personal philosophy on successful rose growing, the following chapters cover every group of roses. Specially commissioned photography shows roses, both on their own and in combination with other plants, accompanied by the author's subjective comments on which roses he considers to be the best to grow in that group. A directory covers all the roses mentioned in their group with plant portraits and concise details on height, spread, colour, disease resistance, etc. All roses are listed in alphabetical order of their names (which are internationally accepted) within their particular group, eg Climbers and Ramblers, Species Roses, Old Shrub Roses.

Edward Emerson Barnard's Photographic Atlas of Selected Regions of the Milky Way was originally published in two volumes in 1927. Together, these volumes contained a wealth of information, including photographic plates of the most interesting portions of the Milky Way, descriptive text, charts and data. Only 700 copies were printed, making the original edition a collector's item. Reproduced in print for the first time, this edition combines both volumes of Barnard's Atlas. It directly replicates Barnard's text, and contains high-resolution images of the original photographic plates and charts, reordered so that they can be seen together. It also includes a biography of Barnard and his work, a Foreword and Addendum by Gerald Orin Dobek describing the importance of the Atlas and additions to this volume, and a pull-out section with a mosaic of all 50 plates combined in a single panorama.

Informed utterly blindsiding account Booklist starred review It s falling from the sky and in the air we breathe It s in our food our clothes and our homes It s microplastic and it s everywhere including our own bodies Scientists are just beginning to discover how these tiny particles threaten health but the studies are alarming In A Poison Like No Other Matt Simon reveals a whole new dimension to the plastic crisis one even more disturbing than plastic bottles washing up on shores and grocery bags dumped in landfills Dealing with discarded plastic is bad enough but when it starts to break down the real trouble begins The very thing that makes plastic so useful and ubiquitous its toughness means it never really goes away It just gets smaller and smaller eventually small enough to enter your lungs or be absorbed by crops or penetrate a fish s muscle tissue before it becomes dinner Unlike other pollutants that are single elements or simple chemical compounds microplastics represent a cocktail of toxicity plastics contain at least 10 000 different chemicals Those chemicals are linked to diseases from diabetes to hormone disruption to cancers A Poison Like No Other is the first book to fully explore this new dimension of the plastic crisis fo

Understanding the physical relationships of minerals and rocks is essential to interpreting detailed chemical and isotopic mineral analyses. Covering the basic processes behind various rock microstructures, Ron Vernon uses high-quality color illustrations to point out complications of interpretation, emphasize pitfalls, and disclose the latest techniques and approaches. He includes a comprehensive reference list that will be useful for advanced students wishing to delve more deeply.

This book is aimed at students of basic University courses of Genetics and Plant Breeding. However, it may also be useful for any person with an interest in crops breeding. The book has 12 Units that covers the main issues of the plant breeding. In the first part of the book basic concepts of Genetics are presented. Subsequently, there are several units devoted to the importance of diversity for plant breeding, to the identification of the different types of plant populations and to have an understanding of their genetic structure and to a presentation of the most used breeding methods. Finally the book deals with different biotechnological tools used in plant breeding.

Nesta Unidade faise unha análise do uso e xestión da auga e dos recursos mineiros, a enerxía, os recursos edáficos, biolóxicos e paisaxísticos, a contaminación e residuos e unha actividade onde se pretende analizar o comportamento ambiental dos habitantes dun lugar en concreto, entre outras cousas. Inclue tamen unha descricion das diapositivas e unha bibliografia.

El doctor Altshuler reúne diversos estudios breves que guardan relación con la física y con varios de sus más notables exponentes. ?Aspiro -dice el autor- a que su lectura sea de particular utilidad para los jovenes universitarios que estudian fisica, y, a la vez, resulte lo suficientemente atractiva para contribuir a estimular vocaciones.? El lector encontrara en estas paginas la historia de varios conceptos y resultados fundamentales para la fisica, asi como ciertos aspectos interesantes de su enseñanza y un relato de los conflictos ideologicos y politicos en los que se vieron involucrados varios de sus mas eminentes representantes: desde Galileo en el siglo XVII hasta Einstein y Bohr en el siglo XX