This book represents the proceedings of the Sixth World Congress of the International Retinitis Pigmentosa Association (IRPA), Dublin, Ireland, July 20-22, 1990. It is intended for all research workers and ophthalmologists interested in the etiologies and diagnosis of inherited degenerative retinopathies. The book contains 22 original papers, many of which are genetically oriented. The genetic focus is due to the fact that highly significant progress in genetic research has been made over the last few years. Topics addressed in the book include proteins of the visual transduction cycle and their effect in the etiologies of RP, identification of more mutations, and new technologies for genetic analysis. The new technologies, in particular, will interest specialists in molecular genetics and researchers seeking information about more clinical applications and the implications of research of inherited retinopathies.
Age-related macular degeneration has become the most common cause of blindness. With population ageing AMD will become an ever more prevalent cause of visual loss unless more effective modes of treatment will be found. Here, an expert panel of experienced clinicians and eminent basic scientists provide for an authoritative review on the pathogenesis, epidemiology and risk factors, diagnostic methods and imaging modalities for age-related macular degeneration. Many photographs and diagrams add to a clear understanding.
Molecular Genetics of Inherited Eye Disorders provides an authoritative and up-to-date account of molecular genetic advances in a wide spectrum of genetic eye disorders, and forms the second volume in the Modern Genetics book series. The field has produced some dramatic and often unexpected findings in recent years ranging from the elegant unravelling of the molecular basis of colour vision defects to the subtle complexity of the retinoblastoma gene. The role of crystallins in congenital cataract and of the rhodopsin molecule in retinitis pigmentosa are discussed, illustrating the importance of the candidate gene approach to genetic eye disease. Reverse genetic approaches to the cloning of genes responsible for aniridia and choroideremia exemplify the power of the new genetic techniques and signal the start of the next experimental phase, in which the functional characterization of identified genes begins.
An expanded version of the first edition published in 1971, each section of this second edition has been updated and a new section on nematodes has been added. It is aimed at all workers interested in nematodes irrespective of whether they do research on nematodes that are parasites on animals or plants or free-living in the soil. Up-to-date literature review of the structures of all types of nematodes, both free living and parasitic More than 100 photographs and illustrations New chapter on the pathology of nematodes Comparisons throughout between the two major groups of nematodes - the Secernentea and Andenophorea
Excel Test Skills - General Ability Tests Year 4 is the seco nd in a four-book series for Years 3-6 which help students with th e skills they need to excel in general ability tests. General ability te sting covers areas such as logic, general knowledge and reasoning, and f orms part of many primary school tests used throughout Australia. The book contains: sample questions covering all the main question types found in Year 4 general ability tests a section of practice questions with hints on how to answer each different type of question twelve practice tests to measure progress-Helpful adv ice for sitting general ability tests answers to all questions, plus explanations when required The first section of this book introduces the student to the types of questions he/she can expect to mee in GA tests. This is followed by twelve GA tests. This book prov ides the opportunity for students to maximise their speed in answering G A questions by making them familiar, and efficient with some of the type s of questions they may encounter in such tests.
Political Handbook of the World annually provides up-to-date political information on all the world's countries in a balanced, accurate and comprehensive manner. A singular and authoritative reference work for nearly 70 years, each new volume builds on the research and scholarship of previous editions, offering rare insight into stories making headlines, judiciously outlining contemporary conflicts and analysing current foreign policy within the informed context of past events and decisions. It is considered to be the single-volume reference work of choice for libraries, diplomats, academic faculties, international corporations, and others needing accurate, timely information.
One of the most important functions of paleontology in the earth sciences is time correlation of rock strata using taxonomic analysis of fossils in different regions. Comparisons of certain species’ similarities between regions frequently allows for precise age dating and correlation of strata limited only by the presence/absence of species and the speed at which they evolved. Between their first appearance in the early/middle Devonian and their ultimate extinction at the K-T boundary, no other single taxonomic group is as precise or as widely useful for time correlation of strata as the ammonoid cephalopods, an extinct distant relative of the modern chambered nautilus. This is especially true for the Carboniferous Era, where ammonoid change was extremely rapid for reasons that are as yet not fully known, although global climate fluctuation is probably a key driving force.
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