منابع مشابه
How seabirds plunge-dive without injuries.
In nature, several seabirds (e.g., gannets and boobies) dive into water at up to 24 m/s as a hunting mechanism; furthermore, gannets and boobies have a slender neck, which is potentially the weakest part of the body under compression during high-speed impact. In this work, we investigate the stability of the bird's neck during plunge-diving by understanding the interaction between the fluid for...
متن کامل133 - Dysbarisms, Dive Injuries, and Decompression Illness
engaging in breath-hold diving, a sharp increase in diving injuries has been seen in EDs (Box 133.2). Deaths from breath-hold diving alone have almost doubled in the last 5 years, thus illustrating the potential for injury associated with this form of diving. With acute DCI, rapid assessment and treatment are the foundation of management. Three keys to successful ED treatment are having a high ...
متن کاملNIHSS applied to cerebral neurological dive injuries as a tool for dive injury severity stratification.
BACKGROUND Evaluation via National Institutes of Health Stroke Scale (NIHSS) upon presentation in hospital triage following ischemic stroke is predictive of recovery or progression to neurological deficits. Cerebral injuries sustained while diving have symptoms similar to stroke. Applying the NIHSS to dive injuries may successfully summarize neurological dive injuries, providing a standardized ...
متن کاملVisual Optics: Accommodation in a Splash
Gannets are large seabirds that hunt fish from the air, making a plunge dive followed by active swimming pursuit of prey. A recent study shows that they convert from aerial to aquatic vision nearly instantly.
متن کاملAerobic dive limit: how often does it occur in nature?
Diving animals offer a unique opportunity to study the importance of physiological constraint in their everyday behaviors. An important component of the physiological capability of any diving animal is its aerobic dive limit (ADL). The ADL has only been measured in a few species. The goal of this study was to estimate the aerobic dive limit from measurements of body oxygen stores and at sea met...
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ژورنال
عنوان ژورنال: Proceedings of the National Academy of Sciences
سال: 2016
ISSN: 0027-8424,1091-6490
DOI: 10.1073/pnas.1608628113