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Showing 1 - 14 of 14 matches in All Departments
Among the major challenges facing society today, seeking renewable alternatives to petroleum-based fuels and manufactured goods is critically important to reducing society's dependency on petroleum and tackling environmental issues associated with petroleum use. In recent years there has been considerable research targeted toward the development of plant-derived bioproducts to replace petrochemical feedstocks for both fuel and manufacturing. Plants not only provide a large amount of renewable biomass, but their biochemical diversity also offers many chemical and molecular tools for the production of new products through biotechnology. Plant Bioproducts is an introduction to the production and application of plant bioproducts, including biofuels, bioplastics, and biochemicals for the manufacturing sector. Contributing authors examine various bioproducts with respect to their basic chemistry, relationship to current petrochemical-based products, and strategies for their production in plants. Chapters cover the integrated roles of agronomy, plant breeding, biotechnology, and biorefining in the context of bioproduct development. Environmental, economic, ethical, and social issues surrounding bioproducts, including the use of genetically modified crops, challenges to food security, and consumer acceptance, are also covered.
-- Over 2,100 shipwrecks from the 16th century to the present; the
most comprehensive listing now available
With contributions from: Eric Blyth, Ken Daniels, Julia Feast, Robert Lee, Nina Martin, Alexina McWhinnie, Derek Morgan, Clare Murray, Sharon Pettle, Claire Potter, Jim Richards and Francoise Shenfield The separation of procreation from conception has broadened notions of parenthood and created novel dilemmas. A woman may carry a foetus derived from gametes neither or only one of which came from her or her partner; or she may carry a foetus created using in vitro fertilisation (IVF) with the purpose of handing it to two other parents one, neither or both of whom may be genetically related to the prospective child. Parents may consist of single-sex couples, only one of them genetically related to the child; the prospective mother may be past her menopause; and genetic parenthood after death is now achievable. In a world increasingly reliant on medical science, how can the argument that equates traditional with natural and novel with unnatural/unethical be justified? Should there be legislation, which is notoriously slow to change, in a field driven by dazzling new possibilities at ever faster rate; particularly when restrictions differ from country to country, so that those who can afford it travel elsewhere for their treatment of choice? Whose rights are paramount - the adults hoping to build a family or the prospective child(ren)s future well being? On what basis can apparently competing rights be regulated or adjudicated and how and to what extent can these be enforced in practice?
Uncertainty and negative expectations are common responses to the menopause. When it happens too early (sometimes as young as 16) it can be particularly distressing with concerns about physical health, as well as possible social and emotional consequences. Young women are faced with a condition, the causes of which are not well understood, and about which very little is written in medical or lay literature. In medical texts premature menopause is typically mentioned only in passing, and from the woman's perspective it remains a hidden secret. This can only compound the difficulty for women for whom the life process has suddenly swept into fast forward. Premature menopause can have profound implications both for the woman herself and her partner and family. She is faced with physical and emotional concerns that are usually not considered until much later in life, such as: will she age prematurely? will she need to take long-term medication? will she come to terms with loss of fertility? are there alternative treatments? are there consequences for her future health?
Among the major challenges facing society today, seeking renewable alternatives to petroleum-based fuels and manufactured goods is critically important to reducing society's dependency on petroleum and tackling environmental issues associated with petroleum use. In recent years there has been considerable research targeted toward the development of plant-derived bioproducts to replace petrochemical feedstocks for both fuel and manufacturing. Plants not only provide a large amount of renewable biomass, but their biochemical diversity also offers many chemical and molecular tools for the production of new products through biotechnology. Plant Bioproducts is an introduction to the production and application of plant bioproducts, including biofuels, bioplastics, and biochemicals for the manufacturing sector. Contributing authors examine various bioproducts with respect to their basic chemistry, relationship to current petrochemical-based products, and strategies for their production in plants. Chapters cover the integrated roles of agronomy, plant breeding, biotechnology, and biorefining in the context of bioproduct development. Environmental, economic, ethical, and social issues surrounding bioproducts, including the use of genetically modified crops, challenges to food security, and consumer acceptance, are also covered.
Includes Norway Does Not Yield By Niels Hjelmtveit.
Includes Norway Does Not Yield By Niels Hjelmtveit.
Change is constant in everyday life. Infants crawl and then walk, children learn to read and write, teenagers mature in myriad ways, the elderly become frail and forgetful. In addition to these natural changes, targeted interventions may cause change: cholesterol levels may decline as a result of a new medication, exam grades may rise following completion of a coaching class. By measuring and charting changes like these - both naturalistic and experimentally induced - researchers uncover the temporal nature of development. The investigation of change has fascinated empirical researchers for generations, and to do it well, they must have longitudinal data. Applied Longitudinal Data Analysis is a much-needed professional book that will instruct readers in the many new methodologies now at their disposal to make the best use of longitudinal data, including both individual growth modelling and survival analysis. Throughout the chapters, the authors employ many cases and examples from a variety of disciplines, covering multilevel models, curvilinear and discontinuous change, in addition to discrete-time hazard models, continuous-time event occurrence, and Cox regression models. Applied Longitudinal Data Analysis is a unique contribution to the literature on research methods and will be useful to a wide range of behavioural and social science researchers.
Will America find enough good teachers to staff its public schools? How can we ensure that all our children will be taught by skilled professionals? The policies that determine who teaches today are a confusing and often conflicting array that includes tougher licensing requirements, higher salaries, mandatory master's degrees, merit pay, and alternative routes to certification. Who Will Teach? examines these policies and separates those that work from those that backfire. The authors present an intriguing portrait of America's teachers and reveal who they are, who they have been, and who they will be. Using innovative statistical methods to track the professional lives of more than 50,000 college graduates, the book describes, in many cases for the first time, just how prospective, current, and former teachers respond to the incentives and disincentives they face. The authors, a group of noted educators, economists, and statisticians, find cause for serious concern. Few academically talented college graduates even try teaching, and many of those who do leave quickly, never to return. Current licensing requirements stifle innovation in training and dissuade many potentially talented teachers at the outset. But Who Will Teach? shows that we can reverse these trends if we get the incentives right. Although better salaries are essential, especially for new teachers, money is not enough. Potential teachers should be offered alternative paths into the classroom. School districts should improve their recruiting strategies. Licensing criteria should assess teaching skills, not just academic achievement and number of courses completed. The authors offer a promising strategy based on high standards and substantial rewards.
Do students who work longer and harder learn more in college? Does joining a fraternity with a more academic flavor enhance a student's academic performance? When are the results from an innovation that is tried on one campus applicable to other campuses? How many students and faculty members must participate in a research project before findings are valid? Do students learn best when they study alone or in small groups? These are just some more than fifty examples that Richard Light Judith Singer and John Willett explore in "By Design," a lively nontechnical sourcebook for learning about colleges and universities. These authors believe that careful design of research on college effectiveness is the single most important step toward producing useful and valid findings. In that spirit, "By Design" is a pathbreaking textbook of modern research methods that both practitioners and students will find useful.
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