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Author: Julie E. Czerneda
Publisher: Astra Publishing House
ISBN: 0756411955
Category : Fiction
Languages : en
Pages : 497
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Book Description
Caught in a web of her own making Esen-alit-Quar had violated the First Rule of her species when she revealed her existence to a human named Paul Ragem. And though both Paul and Esen had survived, others of Esen’s Web had not been so fortunate. Es could hardly believe that fifty years had passed since the terrifying events which had nearly cost her her life and which had forced Paul to give up everything a human treasured―family, friends, even his own identity―to protect the secret of her continued survival. In that time they had built a new life together out on the Fringe. They had a successful export company, friends and associates. Esen, now known as Esolesy Ki and wearing the form of a Lishcyn―a species rare enough in the Commonwealth and never seen in the Fringe―was perfectly content to remain on the world of Minas XII, leaving it to Paul to travel the starways on company business. Meanwhile she used their vast information resources to search for any signs that others of her kind had found their galaxy. What neither Es nor Paul could foresee was that a simple “vacation” trip would plunge the two of them into the heart of a diplomatic nightmare―and threaten to expose both Es and Paul to the hunters who had never been convinced of their destruction.
Author: Julie E. Czerneda
Publisher: Astra Publishing House
ISBN: 0756411955
Category : Fiction
Languages : en
Pages : 497
Get Book Here
Book Description
Caught in a web of her own making Esen-alit-Quar had violated the First Rule of her species when she revealed her existence to a human named Paul Ragem. And though both Paul and Esen had survived, others of Esen’s Web had not been so fortunate. Es could hardly believe that fifty years had passed since the terrifying events which had nearly cost her her life and which had forced Paul to give up everything a human treasured―family, friends, even his own identity―to protect the secret of her continued survival. In that time they had built a new life together out on the Fringe. They had a successful export company, friends and associates. Esen, now known as Esolesy Ki and wearing the form of a Lishcyn―a species rare enough in the Commonwealth and never seen in the Fringe―was perfectly content to remain on the world of Minas XII, leaving it to Paul to travel the starways on company business. Meanwhile she used their vast information resources to search for any signs that others of her kind had found their galaxy. What neither Es nor Paul could foresee was that a simple “vacation” trip would plunge the two of them into the heart of a diplomatic nightmare―and threaten to expose both Es and Paul to the hunters who had never been convinced of their destruction.
Author: Melvin Kaplan
Publisher: Jessica Kingsley Publishers
ISBN: 1843108003
Category : Education
Languages : en
Pages : 210
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Book Description
Dr. Kaplan identifies common ASD symptoms such as hand-flapping, poor eye contact and tantrums as typical responses to the confusion caused by vision disorder. He also explains the effects of difficulties that people with autism experience with "ambient vision," including a lack of spatial awareness and trouble with coordination.
Author: National Academies of Sciences, Engineering, and Medicine
Publisher: National Academies Press
ISBN: 0309439981
Category : Medical
Languages : en
Pages : 587
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Book Description
The ability to see deeply affects how human beings perceive and interpret the world around them. For most people, eyesight is part of everyday communication, social activities, educational and professional pursuits, the care of others, and the maintenance of personal health, independence, and mobility. Functioning eyes and vision system can reduce an adult's risk of chronic health conditions, death, falls and injuries, social isolation, depression, and other psychological problems. In children, properly maintained eye and vision health contributes to a child's social development, academic achievement, and better health across the lifespan. The public generally recognizes its reliance on sight and fears its loss, but emphasis on eye and vision health, in general, has not been integrated into daily life to the same extent as other health promotion activities, such as teeth brushing; hand washing; physical and mental exercise; and various injury prevention behaviors. A larger population health approach is needed to engage a wide range of stakeholders in coordinated efforts that can sustain the scope of behavior change. The shaping of socioeconomic environments can eventually lead to new social norms that promote eye and vision health. Making Eye Health a Population Health Imperative: Vision for Tomorrow proposes a new population-centered framework to guide action and coordination among various, and sometimes competing, stakeholders in pursuit of improved eye and vision health and health equity in the United States. Building on the momentum of previous public health efforts, this report also introduces a model for action that highlights different levels of prevention activities across a range of stakeholders and provides specific examples of how population health strategies can be translated into cohesive areas for action at federal, state, and local levels.
Author: Lawrence Blair
Publisher: Inner Traditions
ISBN: 9780892813209
Category : Body, Mind & Spirit
Languages : en
Pages : 244
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Book Description
Blair suggests that our belief systems are on the threshold of change, as we create new myths that encompass both the emotional and rational sides of human nature.
Author: Kazuo Tsubota
Publisher: Taylor & Francis US
ISBN: 0824755235
Category : Medical
Languages : en
Pages : 320
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Book Description
Examining established and emerging treatments for the correction of hyperopia and presbyopia, this reference offers guidance on technologies such as thermal or conductive keratoplasty, corneal implants, laser scleral relaxation, scleral expansion rings, intraocular lenses, and LASIK modifications.
Author: Martin J. Downing
Publisher: Cambridge Scholars Publishing
ISBN:
Category : Social Science
Languages : en
Pages : 284
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Book Description
In recent years, the use of video has soared spurring debate about the body-camera-environment connection and other concepts a social scientist considering this research tool will face. In this volume we zoom in on ethics, methodology, and analysis, while also zooming out on a wider praxis. The time is here to collectively identify our experiences, methods, and knowledge of video as a research methodology. This compilation of work unpacks the use of video as a research tool. Often through the interdisciplinary lens of environmental psychology as well as anthropology, sociology, and the broader field of psychology, fascinating angles of the use of participant and naturalistic observations are captured along with that of participatory action research. Strategies such as recording video messages, the creation of student informed videos, and facilitating videos taken by or edited by research participants are coupled with methods for obtaining Institutional Review Board approvals, analysis, development of theory or action, and presentation. This volume presents thought provoking, cutting-edge research that is both accessible to students and useful for social scientists who are yearning for a more accurate way to collect, analyze, and present data in our hyper-technical, visual, and competitive world.
Author: Jack J. Kanski
Publisher: Elsevier Health Sciences
ISBN: 0702055743
Category : Medical
Languages : en
Pages : 931
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Book Description
Kanski’s Clinical Ophthalmology: A Systematic Approach is the classic specialty text providing the perfect ophthalmology foundation for trainees through to experienced practitioners. The famous visually dynamic and succinct format enables easy comprehension and focused guidance in the diagnosis and management of ophthalmic disorders. Build the ultimate foundation in ophthalmology with this market-leading resource. Benefit from guidance on examination, imaging, and the recognition of systemic conditions associated with ocular disease. Completely revised by award-winning ophthalmic educator Brad Bowling, the eighth edition reflects the latest advances, making this an indispensable resource to enhance learning, aid exam preparation and guide clinical practice. Designed for rapid reference and efficient recall, the concise but comprehensive chapters use crisp targeted text, bulleted lists, tables, and visual aids to highlight salient points across all ophthalmology subspecialties. Features detailed updates on key evolving topics such as the spectrum of macular disease, with many new disorders added to this edition across a range of subspecialties. Increased emphasis on practical investigation and management. Includes 2,600 illustrations, images and artworks, with over 900 brand new for this edition, including ultra wide-field imaging, fundus autofluorescence, and high-resolution OCT. Consult this title on your favourite e-reader.
Author: Andrew G. Lee
Publisher: Academic Press
ISBN: 0323915256
Category : Medical
Languages : en
Pages : 242
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Book Description
Prolonged microgravity exposure during long-duration spaceflight (LDSF) produces unusual physiologic and pathologic neuro-ophthalmic findings in astronauts. These microgravity-associated findings collectively define the Spaceflight Associated Neuro-ocular Syndrome (SANS). In this book, the editors compare and contrast prior published work on SANS by the National Aeronautics and Space Administration's (NASA) Space Medicine Operations Division with retrospective and prospective studies from other research groups. The book describes the possible mechanisms and potential etiologies for SANS, and provides an update and review on the clinical manifestations of SANS including: unilateral and bilateral optic disc edema, globe flattening, choroidal and retinal folds, hyperopic refractive error shifts, and focal areas of ischemic retina (i.e., cotton wool spots). The ocular imaging findings (e.g., retinal nerve fiber layer, optic disc, and choroidal changes on optical coherence tomography) of SANS is also described, including the intraorbital and intracranial findings on orbital ultrasound and magnetic resonance imaging. The knowledge gaps for in-flight and terrestrial human research including potential countermeasures for future stud is also explored, including reports on the in-flight and terrestrial human and animal research being investigated by NASA and its partners to study SANS both prospectively and longitudinally and in preparation for future long duration manned missions to space including the moon, the asteroid belt, or Mars. We think this is a unique topic and hope that NASA and its research partners continue to study SANS in preparation for future longer duration manned space missions. - Written in an easy-to-read manner, the book adopts a translational approach and explores the science and the clinical manifestations of Space flight associated neuro-ocular syndrome. It is also multi-disciplinary and suitable for both clinicians and researchers in ophthalmology, neurology, and aerospace medicine interested in SANS - SANS is a unique space flight disorder that has no terrestrial equivalent. The book involves contributions from international experts across multiple disciplines to tackle the problem of SANS - Summarizes and reviews the current findings of SANS, including possible mechanisms and potential etiologies, clinical manifestations, current reports on the in-flight and terrestrial human and animal research, and ocular imaging findings
Author: Mark Changizi
Publisher: BenBella Books, Inc.
ISBN: 193525121X
Category : Science
Languages : en
Pages : 240
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Book Description
In The Vision Revolution: How the Latest Research Overturns Everything We Thought We Knew About Human Vision, Mark Changizi, prominent neuroscientist and vision expert, addresses four areas of human vision and provides explanations for why we have those particular abilities, complete with a number of full-color illustrations to demonstrate his conclusions and to engage the reader. Written for both the casual reader and the science buff hungry for new information, The Vision Revolution is a resource that dispels commonly believed perceptions about sight and offers answers drawn from the field's most recent research. Changizi focuses on four “why" questions: 1. Why do we see in color? 2. Why do our eyes face forward? 3. Why do we see illusions? 4. Why does reading come so naturally to us? Why Do We See in Color? It was commonly believed that color vision evolved to help our primitive ancestors identify ripe fruit. Changizi says we should look closer to home: ourselves. Human color vision evolved to give us greater insights into the mental states and health of other people. People who can see color changes in skin have an advantage over their color-blind counterparts; they can see when people are blushing with embarrassment, purple-faced with exertion or the reddening of rashes. Changizi's research reveals that the cones in our eyes that allow us to see color are exquisitely designed exactly for seeing color changes in the skin. And it's no coincidence that the primates with color vision are the ones with bare spots on their faces and other body parts; Changizi shows that the development of color vision in higher primates closely parallels the loss of facial hair, culminating in the near hairlessness and highly developed color vision of humans. Why Do Our Eyes Face Forward? Forward-facing eyes set us apart from most mammals, and there is much dispute as to why we have them. While some speculate that we evolved this feature to give us depth perception available through stereo vision, this type of vision only allows us to see short distances, and we already have other mechanisms that help us to estimate distance. Changizi's research shows that with two forward-facing eyes, primates and humans have an x-ray ability. Specifically, we're able to see through the cluttered leaves of the forest environment in which we evolved. This feature helps primates see their targets in a crowded, encroached environment. To see how this works, hold a finger in front of your eyes. You'll find that you're able to look “through" it, at what is beyond your finger. One of the most amazing feats of two forward-facing eyes? Our views aren't blocked by our noses, beaks, etc. Why Do We See Illusions? We evolved to see moving objects, not where they are, but where they are going to be. Without this ability, we couldn't catch a ball because the brain's ability to process visual information isn't fast enough to allow us to put our hands in the right place to intersect for a rapidly approaching baseball. “If our brains simply created a perception of the way the world was at the time light hit the eye, then by the time that perception was elicited—which takes about a tenth of a second for the brain to do—time would have marched on, and the perception would be of the recent past," Changizi explains. Simply put, illusions occur when our brain is tricked into thinking that a stationary two-dimensional picture has an element that is moving. Our brains project the “moving" element into the future and, as a result, we don't see what's on the page, but what our brain thinks will be the case a fraction of a second into the future. Why Does Reading Come So Naturally to Us? We can read faster than we can hear, which is odd, considering that reading is relatively recent,
Author: Israel Drori
Publisher: Berghahn Books
ISBN: 1845459849
Category : Social Science
Languages : en
Pages : 168
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Book Description
Sheltered for a long time within the public sector environment with high job security and professional research autonomy, defense R&D organizations faced unprecedented challenges when government support was being withdrawn and closure threatening. They needed to be led by a suitable vision in order to implement comprehensive changes to their operations and remain viable. This study explores this constitution of vision as a mechanism of intentional change, a strategic tool to reach the desired future for the organization. Going beyond the current literature, the authors ask to what extent, and how, organizational members reconstruct vision in a way that it can support or detain change, a question of importance for management scholars as well as professional managers in both public and private organizations.
