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Articles 1 à 20 sur 1245
Par Marvin L Kwitko, Marvin Ross. 1994
Par Richard A. Fortey. 1982
A guide for amateur fossil collectors and general readers to how fossils came about, how to find and identify them,…
and their economic and practical importance. Emphasizes fossils easy to find. Includes a short glossary without pronunciation.Par Parul Ichhpujani, Sahil Thakur. 2018
This book provides information on how to extract the most from mobile applications and easily adapt and integrate them into…
daily practice Today mobile applications that can optimize patient flow help in examinations perform anterior posterior segment imaging offer differential diagnosis and therapeutic options and even serve as patient drug reminders and councilors are easily available Most of them have been developed by individuals and as a result lack marketing even though they are free to download and use Ophthalmology has always been at the forefront of medicine when it comes to adopting the latest developments be they lasers off-label anti-VEGF drugs or biocompatible implants Mobile phones and tablets have infiltrated our private and professional lives and they are here to stay As such this book explores the endless possibilities that mobile computing offers and introduces the vista of opportunities for providing better care one download at a time As part of the series Current Practices in Ophthalmology this volume is intended for residents and fellows in-training as well as general and specialist ophthalmologistsOn the basis of thermodynamic considerations and the Earth s historical processes this book argues the physical…
inevitability of life s generation and evolution i e Why did life generate Why does life evolve Following an introduction to the problem the hypothesis Darwinian Evolution of Molecules is proposed which explains how when and where life was instigated through successive chemical reactions and the survival of selected molecules The individual processes described are all scientifically reasonable being verifiable by experiment The hypothesis is supported by extensive reference to the scientific literature published in academic journals including some experimental reports from the author s own research group The readers of this book will learn that the decreasing temperature of the early Earth led to a reduction in its entropy inducing the Earth s materials to order which entailed ordering of the light elements as organic molecules with subsequent further ordering i e evolution to systems that can be considered alive i e life Researchers and students as well as the non-academic audience interested in the interdisciplinary problem of the origin of life will find suggestions and possible approaches to the scientific and conceptual problems they may be facingPar An-Guor Wang. 2018
This book presents 57 typical cases of neuro-ophthalmic diseases in the emergency room, which represent notoriously complex and difficult challenges…
for junior doctors. The physical manifestations of these neurologic disorders include visual loss, transient blurring, diplopia, headache, pupillary abnormality, and even cognition problems. Each case provides a wealth of information, including the case report, comments, diagnosis, management, prognosis and concise notes, as well as photographs and other images. As a case-based clinical reference work on neuro-ophthalmic diseases, the book offers readers essential, concretely applicable information and guidance.Par Bjørn Stabell, Ulf Stabell. 2009
The duplicity theory of vision concerns the comparisons (both differences and similarities) and interaction between the cone and rod systems…
in the visual pathways, with the assumption that the cone system is active during daylight vision and the rod system functions in low light (night time). Research on this aspect of vision dates back to the 17th century and the work of Newton, and is still ongoing today. This book describes the origin and development of this fundamental theory within vision research - whilst also examining the Young-Helmholtz trichromatic colour theory, and the opponent colour theory of Hering - and presents evidence and ideas in light of modern conceptions of the theory. Written for academic researchers and graduate students, the book brings back knowledge of the tradition of duplicity theory, inspiring questions related to anatomy, comparative biology, molecular biology, photochemistry, physiology, genetics, phylogenetics and psychophysics.Par Russell H. Tuttle. 2014
In this masterwork, Russell H. Tuttle synthesizes a vast research literature in primate evolution and behavior to explain how apes…
and humans evolved in relation to one another, and why humans became a bipedal, tool-making, culture-inventing species distinct from other hominoids. Along the way, he refutes the influential theory that men are essentially killer apes--sophisticated but instinctively aggressive and destructive beings. Situating humans in a broad context, Tuttle musters convincing evidence from morphology and recent fossil discoveries to reveal what early primates ate, where they slept, how they learned to walk upright, how brain and hand anatomy evolved simultaneously, and what else happened evolutionarily to cause humans to diverge from their closest relatives. Despite our genomic similarities with bonobos, chimpanzees, and gorillas, humans are unique among primates in occupying a symbolic niche of values and beliefs based on symbolically mediated cognitive processes. Although apes exhibit behaviors that strongly suggest they can think, salient elements of human culture--speech, mating proscriptions, kinship structures, and moral codes--are symbolic systems that are not manifest in ape niches. This encyclopedic volume is both a milestone in primatological research and a critique of what is known and yet to be discovered about human and ape potential.Par Xuguang Sun. 2018
This book provides the concise descriptions of the basic and clinical knowledge about Acanthamoba keratitis including characteristics of pathogen…
risk factors clinical manifestations diagnosis and treatment with abundant figure illustrations and typical cases to ophthalmological practitioners and researchers p p Acanthamoeba pathogen is widely distributed in the nature However Acanthamoeba keratitis is generally considered as a type of sight-threatening keratitis that is difficult to treat At early stage Acanthamoeba keratitis usually shows atypical clinical manifestations that are often misdiagnosed as viral or bacterial keratitis Moreover there are not approved topical anti-amoebicdrugs available up to now We hope ophthalmological practitioners can obtain a comprehensive understanding of this infection through this bookPar Mohammad Javed Ali. 2018
Written by an expert in the field this book is a comprehensive and up-to-date guide to the evaluation and…
management of lacrimal drainage disorders Lacrimal disorders are one of the most common conditions encountered not only by oculoplastic surgeons and general ophthalmologists but also by otorhinolaryngologists in their daily practice Consisting of 77 chapters it addresses the basic anatomy and underlying pathology patient evaluation and the surgical procedures currently performed in managing various lacrimal disorders Surgical modalities including the endoscopic approaches are thoroughly and succinctly captured in pictures with detailed legends to aid understanding and offer a visual treat Since familiarity with a surgical technique is incomplete without the knowledge of risk factors and red flags the book discusses in detail how to deal with surgical complications and failure The Atlas of Lacrimal Drainage Disorders is an essential companion to the a uthor s previous work Principles and Practice of Lacrimal SurgeryPar Mark R. Murphy, Babak Azizzadeh, Guy G. Massry. 2012
Master Techniques in Blepharoplasty and Eyelid Reconstruction is a comprehensive, multi-specialty textbook and surgical atlas on blepharoplasty and eyelid reconstruction,…
presenting multiple competing and complementary techniques by the leading experts in the field of plastic surgery, facial plastic surgery, and oculoplastic surgery. Only the most pioneering and time-tested surgical procedures are presented in step-by-step, illustrative detail. All areas of eyelid surgery are covered in a balanced and systematic approach. An accompanying on-line surgical atlas shows digitally videotaped procedures by the leading authors, extremely useful to any surgeon interested in blepharoplasty. Master Techniques in Blepharoplasty and Eyelid Reconstruction is the definitive textbook and atlas for any surgeon who interested in this topic.Par John D. Lambris, Anthony P. Adamis. 2010
Comprehensive look at the pathology and biology of retinal inflammation. Written by current, respected opthamologists and eye researchers. Reports on…
age-related degeneration, gene-associations, and other physiological pathways to retinal inflammation. Numerous studies have pointed to the key role of complement in the pathogenesis of retinal disease, particularly age-related macular degeneration (AMD). Reports about new gene associations and links to other physiological pathways are emerging almost on a weekly base. Several promising clinical candidates covering a wide area of potential treatment applications are in the pipelines of both industrial and academic groups. This indicates an increasing interest in complement as a therapeutic target. In view of these exciting discoveries, scientists from around the world convened at the 1st Aegean Conferences Conference on Inflammation and Retinal Disease: Complement Biology and Pathology (June 10-17, 2007) in Crete, Greece, to discuss recent advances in this rapidly-evolving field. This volume represents a collection of topics on the functions of complement in eye diseases, pathophysiology, protein structures, and complement therapeutics discussed during the conference.Par Jonathan H. Talamo, Ronald R. Krueger, Richard L. Lindstrom. 2013
Textbook of Laser Refractive Cataract Surgery is a comprehensive reference for the general ophthalmologist and cataract surgeon regarding the explosive…
new technology in femtosecond laser cataract surgery. Femtosecond laser allows extreme precision in surgery, and is used in refractive surgery and for 'cuts' in the cornea, leading to a more uniform treatment for the patient. Textbook of Laser Refractive Cataract Surgery is for cataract surgeons and all eye care providers managing or diagnosing cataracts who wish to be informed about this technology and its applications. Edited and written by recognized leaders in the field, this book covers background, technical, clinical, and commercial aspects of this exciting technology. Some of the topics covered include the evolution of cataract surgery, femtosecond laser fundamentals, challenges of femtosecond laser technology for cataract surgery, and the economics of laser cataract surgery. Edited and written by recognized leaders in the field, this book covers background, technical, clinical, and commercial aspects of this exciting technology. Some of the topics covered include the evolution of cataract surgery, femtosecond laser fundamentals, challenges of femtosecond laser technology for cataract surgery, and the economics of laser cataract surgery.Par David Ee Holck, Allan E. Wulc, Morris E. Hartstein. 2009
Midfacial Rejuvenation is a comprehensive review of the majority of procedures and options for midfacial aesthetic and corrective surgery. Each…
contributor offers a unique approach to the midfacial area, with detailed specifics for every technique. Chapters on midfacial anatomy, complications and their management complete the comprehensive coverage of the subject matter, resulting in a reference text that will benefit every practitioner dealing with the midfacial region. Features: · One of the first books to focus exclusively on the midfacial area · Highly illustrated and with clear, step-by-step instructions on performing a variety of midface lifts, implants, sutures, grafts, and fillers · Over 300 full color images · Includes in-depth chapters on midfacial anatomy and the anatomic basis of aging · Multiple approaches to midfacial rejuvenation by well-known surgeons in fields such as oculoplastics, facial plastics, general plastics, and dermatologistsPar Matthew Lavail, Robert Anderson, Christian Grimm, John Ash. 2012
This book will contain the proceedings of the XIV International Symposium on Retinal Degeneration (RD2010), held July 13-17, 2010, in…
Mont-Tremblant, Quebec, Canada. The volume will present representative state-of-the-art research in almost all areas of retinal degenerations, ranging from cytopathologic, physiologic, diagnostic and clinical aspects; animal models; mechanisms of cell death; candidate genes, cloning, mapping and other aspects of molecular genetics; and developing potential therapeutic measures such as gene therapy and neuroprotective agents for potential pharmaceutical therapy.Par Desmond P. Kidd. 2016
This book presents fifty clinical cases in neuro-ophthalmology, some of which are common and some of which are rare. Each…
case is presented as a diagnostic and management challenge as found in clinical practice. High quality clinical photographs and images bring the cases to life alongside the diagnostic process and management decisions of an experienced specialist. A short summary of important aspects of the pathogenesis and treatment of each disease finishes each case. Neuro-Ophthalmology: Illustrated Case Studies entertains and instructs the reader and is ideal reading for doctors in training in this area, as well as general consultant neurologists and ophthalmologists.Par S. R. Pandi-Perumal, Birendra N. Mallick, Robert W. Mccarley, Adrian R. Morrison. 2011
Spanning over half a century of investigation into Rapid Eye Movement (REM) sleep, this volume provides comprehensive coverage of a…
broad range of topics in REM sleep biology. World renowned researchers and experts are brought together to discuss past and current research and to set the foundation for future developments. Key topics are covered in six sections from fundamental topics (historical context and general biology) to cutting-edge research on neuronal regulation, neuroanatomy and neurochemistry, functional significance and disturbance in the REM sleep generating mechanism. A reference source for all aspects of REM sleep research, it also incorporates chapters on neural modelling, findings from non-human species and interactions between brain regions. This is an invaluable resource, essential reading for all involved in sleep research and clinical practice.Par James D. Schiffbauer, Marc Laflamme, Stephen Q. Dornbos. 2010
This volume provides a detailed description of a wide range of numerical, statistical or modeling techniques and novel instrumentation separated…
into individual chapters written by paleontologists with expertise in the given methodology. Each chapter outlines the strengths and limitations of specific numerical or technological approaches, and ultimately applies the chosen method to a real fossil dataset or sample type. A unifying theme throughout the book is the evaluation of fossils during the prologue and epilogue of one of the most exciting events in Earth History: the Cambrian radiation.Par Simon K. Law, Joann A. Giaconi, Joseph Caprioli, Anne L. Coleman. 2010
This concise and comprehensive guide is written by international experts of the field who are familiar with the world's literature.…
Based on the world's literature and their own experience, authors state and explain how they prefer to manage patients and problems clinically. Each chapter author gives the reader numerous clear and specific tips and pearls for the diagnosis and management of Glaucoma. The reader-friendly structure of this lavishly illustrated 4-colour book ensures that the necessary information is quickly found and remembered. This book ensures a pleasant learning experience on Glaucoma management with the goal of an improved treatment outcome.Par Sergio F. Vizcaíno, Richard F. Kay, M. Susana Bargo. 2012
Coastal exposures of the Santa Cruz Formation in southern Patagonia have been a fertile ground for recovery of Early Miocene…
vertebrates for more than 100 years. This volume presents a comprehensive compilation of important mammalian groups which continue to thrive today. It includes the most recent fossil finds as well as important new interpretations based on 10 years of fieldwork by the authors. A key focus is placed on the paleoclimate and paleoenvironment during the time of deposition in the Middle Miocene Climatic Optimum (MMCO) between 20 and 15 million years ago. The authors present the first reconstruction of what climatic conditions were like and present important new evidence of the geochronological age, habits and community structures of fossil bird and mammal species. Academic researchers and graduate students in paleontology, paleobiology, paleoecology, stratigraphy, climatology and geochronology will find this a valuable source of information about this fascinating geological formation.Par Donald R Prothero. 2016
More than a hundred years ago, Sir Arthur Conan Doyle wrote a novel called The Lost World with the exciting…
premise that dinosaurs and other prehistoric beasts still ruled in South America. Little did Conan Doyle know, there were terrifying monsters in South America--they just happened to be extinct. In fact, South America has an incredible history as a land where many strange creatures evolved and died out. In his book Giants of the Lost World: Dinosaurs and Other Extinct Monsters of South America, Donald R. Prothero uncovers the real science and history behind this fascinating story. The largest animal ever discovered was the huge sauropod dinosaur Argentinosaurus, which was about 130 feet long and weighed up to 100 tons. The carnivorous predator Giganotosaurus weighed in at more than 8 tons and measured more than 47 feet long, dwarfing the T. rex in comparison. Gigantic anacondas broke reptile records; possums evolved into huge saber-toothed predators; and ground sloths grew larger than elephants in this strange, unknown land. Prothero presents the scientific details about each of these prehistoric beasts, provides a picture of the ancient landscapes they once roamed, and includes the stories of the individuals who first discovered their fossils for a captivating account of a lost world that is stranger than fiction.