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Scientists have great passion. What could be more exhilarating than to go to work every day feeling as if you were once again a nine-year-old called up to he stage to help the magician with his trick? To be a researcher is to always be in the position of having the chance to see how the trick works. No wonder that many researchers feel that each new day is the most exciting day to be a scientist. It therefore is not surprising that scientists have such trouble communicating with non-scientists. It is difficult for the scientist to understand a life not focused on the desire to understand. But the differences are not that. Everyone wants to understand; that is one of the factors that make us human. The difference is more that scientists limit their definition of comprehension to specific rules of logic and evidence. These rules apply and are used in everyday life, but often with less rigor or restrictions on evidence.

Animal genetics. Animal evolution --- embryologie (biologie) --- General embryology. Developmental biology --- Biotechnology --- genetica --- biotechnologie --- milieuzorg --- Environmental protection. Environmental technology --- Developmental biology. --- Animal genetics. --- Applied Ecology. --- Developmental Biology. --- Animal Genetics and Genomics. --- Genetics --- Development (Biology) --- Biology --- Growth --- Ontogeny --- Ecology --- Environmental protection --- Nature conservation --- Science --- Evolution. --- Philosophy. --- Medicine. --- Evolution (Biology). --- Microbial genetics. --- Microbial genomics. --- Life sciences. --- Biomedicine general. --- Evolutionary Biology. --- Microbial Genetics and Genomics. --- Popular Science in Nature and Environment. --- Biosciences --- Sciences, Life --- Genomics --- Microbial genetics --- Microorganisms --- Microbiology --- Animal evolution --- Animals --- Biological evolution --- Darwinism --- Evolutionary biology --- Evolutionary science --- Origin of species --- Evolution --- Biological fitness --- Homoplasy --- Natural selection --- Phylogeny --- Health Workforce --- Applied ecology. --- Evolutionary biology. --- Nature. --- Environment. --- Biomedicine, general. --- Balance of nature --- Bionomics --- Ecological processes --- Ecological science --- Ecological sciences --- Environment --- Environmental biology --- Oecology --- Environmental sciences --- Population biology --- Springer e-books.

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"The book provides a synthesis of the key issues and challenges which face agriculture and food production in Southern Africa. Agriculture and food security in Southern Africa are facing numerous challenges from diverse issues such as growing populations, urbanization and climate change. These challenges place great pressure on water and other natural resources, plus for biodiversity. The chapters in this book consider all these challenge from an interdisciplinary perspective, coverings key areas in constraints to production, the most important building blocks of good farming practices, and established and emerging technologies. This will be valuable to help support and inform new policies and processes, farmers from small to medium sized farms in improving food production and security, and new approached, such as sustainable intensification. This concise and informative volume will be key reading for those interested in agricultural science, African studies, rural studies, development studies, geography and sustainability. It will also be a valuable resource for policy makers, governmental and non-governmental organizations and agricultural practitioners"--

Agricultural innovations --- Sustainable agriculture --- Food security --- Food deserts --- Food insecurity --- Insecurity, Food --- Security, Food --- Human security --- Food supply --- Low-input agriculture --- Low-input sustainable agriculture --- Lower input agriculture --- Resource-efficient agriculture --- Sustainable farming --- Agriculture --- Alternative agriculture --- Innovations, Agricultural --- Technological change in agriculture --- Technological innovations --- Innovations --- Technology transfer --- agricultural development --- African studies --- agriculture and food

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"The book provides a synthesis of the key issues and challenges which face agriculture and food production in Southern Africa. Agriculture and food security in Southern Africa are facing numerous challenges from diverse issues such as growing populations, urbanization and climate change. These challenges place great pressure on water and other natural resources, plus for biodiversity. The chapters in this book consider all these challenge from an interdisciplinary perspective, coverings key areas in constraints to production, the most important building blocks of good farming practices, and established and emerging technologies. This will be valuable to help support and inform new policies and processes, farmers from small to medium sized farms in improving food production and security, and new approached, such as sustainable intensification. This concise and informative volume will be key reading for those interested in agricultural science, African studies, rural studies, development studies, geography and sustainability. It will also be a valuable resource for policy makers, governmental and non-governmental organizations and agricultural practitioners"--

Agricultural innovations.

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Cryopreserved allograft tissues are now standard materials for the reconstructive cardiac surgeon. Since publication of the first edition ("Cardiac Reconstructions with Allograft Valves") in 1989, the field has progressed dramatically with increased clinical use of cardiovascular allograft tissues, with the development of new surgical techniques, and with advances in the understanding of the fundamentals of valve transplantation biology and cryopreservation. As a result, over two-thirds of the present volume represents new material. Fifty-six authors bring their expertise to thirteen comprehensive, lavishly illustrated sections which discuss the principles of the use of homograft valves, major clinical series of homograft valves for both left and right ventricular outflow tracts, cryopreserved allograft tissue for cardiac reconstruction, cell biology of heart valve leaflets, cryobiology of heart valve preservation, morphological, biochemical, and explant pathology studies of allograft heart valves, allograft valve banking, as well as detailed explanation of surgical techniques for valve and root methods for left and right ventricular outflow tract reconstructions, the Ross operation and variants, and complex reconstructions. A final section presents potential future directions for the field. Over 400 illustrations, created expressly for this book, depict the surgical techniques from the perspective of the surgeon standing at the operating table. All surgeons performing pediatric and/or adult valve replacements and reconstructive cardiac surgeries will benefit from the described methods. Cardiothoracic residents and cardiologists will also find the text useful. It will provide the surgeon with an enhanced understanding of the biological and material properties of allografts and increased familiarity with the range of surgical techniques applicable for the use of these valves, particularly in the successful management of challenging cardiac reconstructions.>.

Heart valves --- Homografts. --- Surgery. --- Allogeneic homografts --- Allografts --- Homologous transplants --- Transplantation of organs, tissues, etc. --- Heart --- Cardiology. --- Cardiac Surgery. --- Internal medicine --- Cardiac surgery --- Open-heart surgery --- Diseases --- Surgery --- Cardiac surgery.