Results 21 to 30 of about 19,339 (236)

Turbans vs. Helmets: A Systematic Narrative Review of the Literature on Head Injuries and Impact Loci of Cranial Trauma in Several Recreational Outdoor Sports

open access: yesSports, 2021
When in public, faith-based mandates require practising Sikh men to wear a turban which may not be covered by hats or caps. This makes it impossible for practising Sikhs to wear helmets and other protective headwear, mandatory in many countries and ...
Dirk H. R. Spennemann
doaj   +1 more source

Analysis of bicycle helmet damage visibility for concussion-threshold impacts

open access: yesInternational Biomechanics, 2021
Any helmet involved in an accident should be replaced, regardless of appearance after impact. However, consumer compliance and interpretation of this recommendation is unclear, for which there is additional ambiguity for lesser impacts.
Ana Cachau-Hansgardh   +3 more
doaj   +1 more source

Occipital bone fractures in two-wheeler road traffic accidents: Understanding contrecoup brain injuries and implications for prevention

open access: yesSaudi Journal for Health Sciences
Background: Traumatic occipital bone fractures from two-wheeler road traffic accidents (RTAs) are significant public health concerns due to their high morbidity and mortality.
Robert Mark Wallang   +2 more
doaj   +1 more source

Analysis and Determination of the Lateral Distance Parameters of Vehicles When Overtaking an Electric Bicycle from the Point of View of Road Safety

open access: yesApplied Sciences, 2023
Recent years have witnessed an increasing number of electric bicycles on the roads and a rise in the number of road crashes involving e-bicyclists. There are various causes of road crashes involving e-bicyclists.
Tijana Ivanišević   +8 more
doaj   +1 more source

Smart Helmet - Intelligent Safety Helmet

open access: yesInternational Journal of Advanced Research in Science, Communication and Technology, 2021
Bike riding is a lot of fun, but accidents happen. People choose motorbikes over cars as it is much cheaper to run, easier to park and flexible in traffic. In India, more than 37 million people are using two wheelers. Since usage is high, accident percentage of two wheelers are also high compared to four wheelers.
Sanket Gokule   +4 more
openaire   +1 more source

Preventing Road Traffic Accident Deaths in India: A Public Health Imperative

open access: yesNational Board of Examinations Journal of Medical Sciences
Introduction: Road traffic injuries (RTIs) remain a major public health challenge in India, contributing substantially to mortality, morbidity, and socio economic burden.
S.M. Krishna Sagar   +4 more
doaj   +1 more source

Aerodynamic Drag Reduction on Speed Skating Helmet by Surface Structures

open access: yesApplied Sciences, 2022
The aerodynamic drag for speed skating helmets with surface structures was investigated in this work by using numerical and experimental methods. Computational fluid dynamic (CFD) research was performed to analyze the detail of the flow field around the ...
Yanqing Wang   +5 more
doaj   +1 more source

Load Distributing Metamaterials Via Discrete Optimization

open access: yesAdvanced Functional Materials, EarlyView.
Mechanical metamaterials are computationally optimized to homogenize transmitted forces by minimizing the spread of reaction forces. The resulting architectures transform localized loading into broader, more uniform force distributions and experimentally demonstrate robust load spreading under quasi‐static and impact loading.
Andrea Detry   +6 more
wiley   +1 more source

An Approach to the Definition of the Aerodynamic Comfort of Motorcycle Helmets

open access: yesVehicles, 2021
The aim of this work is to obtain a reliable testing methodology for the characterization of the perceived aerodynamic comfort of motorcycle helmets. Attention was paid to the rider’s perception of annoying vibrations induced by wind.
Lorenzo Scappaticci   +4 more
doaj   +1 more source

Near‐Infrared Light‐Activated Polydopamine Nanoparticles Conjugated With Transferrin Peptides for Enhanced Brain Accumulation

open access: yesAdvanced Healthcare Materials, EarlyView.
This study demonstrates that Tf‐PDA NPs combine a receptor‐mediated targeting with mild photothermal activation to enhance nanoparticle accumulation in the brain. NIR‐activated Tf‐PDA NPs increase BBB permeability to NPs in vitro and in vivo without inducing cytotoxicity or adverse immune responses.
Rafaela Ferrão   +5 more
wiley   +1 more source

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