Results 221 to 230 of about 132,283 (262)

Spinal fractures incurred by a fall from standing height

Clinical Neurology and Neurosurgery, 2019
Falls from standing are common, particularly amongst the aging population, due to declining mobility, proprioception and vision. They are often complicated by fragility fractures, including vertebral fractures, that are associated with significant morbidity and may represent a pre-terminal condition with high one-year mortality rates.A retrospective ...
Samuel Hall, Matthew A. Myers, Ahmed-Ramadan Sadek, Mark Baxter, Colin Griffith, Christopher Dare, Emad Shenouda, Ali Nader-Sepahi   +7 more
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Forest Stand Height Estimation

2019
The measurement of forest structural characteristics is important for a variety of Monitoring, Reporting, and Verification (MRV) protocols in resource management.\r\nOne characteristic of particular importance is Forest Stand Height (FSH), or the average height of trees in a forest stand. In this context, FSH can be used an indicator\r\nof the age of a
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Standing Stokes waves of maximum height

Journal of Fluid Mechanics, 1973
An analytic expression is found for an infinite subset of the coefficients of the perturbation expansion. They are the coefficients of the terms most rapidly varying at each order, which are also the first terms in the expansion of each Fourier coefficient. The sum of these terms gives a nonlinear approximation to the solution.
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Protective Movements during Sideways Falls from Standing Height

Journal of PHYSIOLOGICAL ANTHROPOLOGY and Applied Human Science, 2005
To examine the effect of protective movements during sideways falls from standing height (i.e., from the standing position), a two-step study was performed. In the first step, 80 young male and female volunteers freely fell onto a sport-mat. All falls were recorded on videotape, and replayed to analyze movements in response to the falls.
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Electromyographic activity of the neck muscles: Effects of varying standing height-derived teaching board heights

Journal of Back and Musculoskeletal Rehabilitation, 2020
BACKGROUND: Despite the increasing emergence of modern facilities, the ancient practice of writing on a teaching board is still common in the teaching profession. Ergonomic guidelines of this practice are required for the prevention of work-related neck musculoskeletal disorders inherent of teachers.
Chidiebele Petronilla, Ojukwu, Chioma Nneka, Ikele, Onyekachi Darlington, Nwobodo, Adaora Justina, Okemuo, Ikenna Theophilus, Ikele, Chigozie Ikenna, Uchenwoke, Uchechukwu Anthonia, Ezeugwu   +6 more
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Optical Remote Sensing of Tree and Stand Heights

Tree height and vegetation height distribution are structural characteristics of major importance when attempting to understand and monitor biological and ecological processes at tree, stand, and landscape scales. Tree height plays a central role in forest inventories, and height growth is a main driver for growth and yield models.
Durrieu, Sylvie, Véga, Cédric, Bouvier, Marc, Gosselin, Frédéric, Renaud, Jean-Pierre, Saint‐andré, Laurent, Schleich, Anouk, Soma, Maxime   +7 more
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A comparison between various definitions of forest stand height and aerodynamic canopy height

Agricultural and Forest Meteorology, 2010
A consistent measure of forest canopy height is required for among-site comparisons of meteorological properties and for comparison of model results such as distributions of wind and other scalars calculated by large eddy simulations with observations.
Taro Nakai, Akihiro Sumida, Yuji Kodama, Toshihiko Hara, Takeshi Ohta   +4 more
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Optical remote sensing of tree and stand heights

2015
Ce chapitre explique dans un premier temps pourquoi les mesures de hauteur des arbres sont si importantes en écologie et pour les gestionnaires forestiers. Il présente ensuite deux techniques de télédétection, le lidar et la photogrammétrie numérique, qui peuvent être utilisées pour étendre ces mesures (qui sont fastidieuses par des approches de ...
Durrieu, Sylvie, Vega, Cédric, Bouvier, M., Gosselin, Frédéric, Renaud, Jean-Pierre, Saint-André, Laurent   +5 more
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Stand Height Estimation Based on Polarization Coherence Tomography

2016
With the information of interferometric coherence coefficient of different polarization states, Polarization Coherence Tomography (PCT) technology can reconstruct the vegetation vertical structure, it is an important development direction of SAR technology applications.
Xiange Cao, Jinling Yang, Jianguo Hou, Jiwen Zhu, Weicheng Zhang, Jiang Liu, Xianglai Meng   +6 more
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Biparietal Thinning: Accidental Death by a Fall from Standing Height

Journal of Forensic Sciences, 2017
AbstractBiparietal thinning resulting in bilateral and symmetrical resorption and loss of thickness of the parietal bones is an uncommon to rare condition in the anthropological and clinical literature. This enigmatic condition of unknown etiology was first reported in the 18th century and has been variously described as a nonmetric trait, anatomical ...
Robert W, Mann, Masahiko, Kobayashi, Alan L, Schiller   +2 more
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