Results 51 to 60 of about 39,977 (246)

Why teenagers owning a bicycle helmet do not use their helmets

, 2001
Problem: Recent reports about bicycle helmet wearing indicate that the number of helmet users is still very small among teenagers. The objective of this prevalence survey was to investigate why teenagers do not use a bicycle helmet even if they have one.
Lajunen, T, Rasanen, M
core   +1 more source

The Degradation of Access‐Based Business Models: Customer Misbehavior and Shared Mobility

Business Strategy and the Environment, EarlyView.
ABSTRACT Access‐based services are considered one of the strategies to embed sustainability in business models. Yet, because the evolution of these business models has been overlooked, we do not know whether their promise to create triple value is sustained.
Andres Camacho, Carmen Valor
wiley   +1 more source

Experimental investigation of a viscoelastic liner to reduce under helmet overpressures and shock wave reflections

Frontiers in Bioengineering and Biotechnology
IntroductionShock wave overpressure exposures can result in blast-induced traumatic brain injury (bTBI) in warfighters. Although combat helmets provide protection against blunt impacts, the protection against blast waves is limited due to the observed ...
Cody J. H. Thomas, Fatih Dogan, Catherine E. Johnson   +2 more
doaj   +1 more source

Helmet use among Alaskan children involved in off-road motorized vehicle crashes [PDF]

International Journal of Circumpolar Health, 2014
Background: Off-road motorized vehicle crashes are a common source of trauma among Alaska children. Injury morbidity is worse in Alaska Native children than non-Native children, but the reasons are unclear.
Christopher W. Snyder, Oliver J. Muensterer, Frank Sacco, Shawn D. Safford   +3 more
doaj   +1 more source

Coil-gun Turret Control System by Using Digital Compass on Helmet [PDF]

, 2011
In this project designed and constructed based Auto Tracking Turret Movement Helm. This final project is inspired from the target tracking system used on aircraft today is Helmet Mounted Sight (HMS). Then the technology was combined with artillery.
Purnomo, Didik Setyo, Siqqi, Mukhammad Syifa'us, Sulistijono, Indra Adji   +2 more
core  

Auditory gamma‐band synchronization and attentional performance in juvenile myoclonic epilepsy

Epilepsia Open, EarlyView.
Abstract Objective Cognitive difficulties in juvenile myoclonic epilepsy (JME) are part of the clinical phenotype alongside epileptic seizures; however, the underlying neurophysiological mechanisms remain unclear. Auditory steady‐state responses (ASSRs) to repetitive 40‐ and 80‐Hz stimuli are widely used measures of gamma‐band oscillations (GBOs ...
Ryo Mitoma, Shunsuke Tamura, Yoji Hirano, Takako Mitsudo, Yubin Sung, Takahiko Mukaino, Takahiro Yamaguchi, Kou Matsumoto, Toshiaki Onitsuka, Shogo Hirano, Tomohiro Nakao, Noriko Isobe, Hiroshi Shigeto   +12 more
wiley   +1 more source

The protective effect of helmet use in motorcycle and bicycle accidents: a propensity score–matched study based on a trauma registry system

BMC Public Health, 2017
Background Transportation by motorcycle and bicycle has become popular in Taiwan, this study was designed to investigate the protective effect of helmet use during motorcycle and bicycle accidents by using a propensity score–matched study based on trauma
Spencer C. H. Kuo, Pao-Jen Kuo, Cheng-Shyuan Rau, Yi-Chun Chen, Hsiao-Yun Hsieh, Ching-Hua Hsieh   +5 more
doaj   +1 more source

Helmet Laws, Helmet Use, and Bicycle Ridership [PDF]

Journal of Adolescent Health, 2016
To assess bicycle helmet laws' effect on helmet and bicycle use among U.S. high school students in urban jurisdictions.Log-binomial models were fit to Youth Risk Behavior Survey data from five jurisdictions. Adjusted helmet and bicycle use proportions were calculated with post-regression marginal effects.
openaire   +2 more sources

Artificial structures for human‐machine interfaces with closed‐loop interaction

FlexMat, EarlyView.
Artificial structures bridge sensing and feedback in closed‐loop human‐machine interfaces by providing geometry‐enabled mechanical and functional programmability. This review maps the role of artificial structures in diverse sensing modalities and feedback strategies, and illustrates their integration into closed‐loop interaction systems, highlighting ...
Taiqi Hu, Taisong Pan, Siqi Chen, Yiting Zhang, Yuan Lin   +4 more
wiley   +1 more source

Shaping Liquid Crystal Rubbers by Chemical Potential Gradient

Macromolecular Rapid Communications, EarlyView.
Depositing a low molecular weight liquid crystal drop onto a uniformly aligned LCE leads to non‐uniform swelling, enabling temporary shape changes and bending actuation. These deformations are quantitatively modeled for different alignment conditions, and methods to permanently lock desired shapes are explored.
Mahesha Kodithuwakku Arachchige, Zakaria Siddiquee, Rohan Dharmarathna, Antal Jákli   +3 more
wiley   +1 more source