Results 31 to 40 of about 51,111 (261)

Bicycling-related concussions leading to postconcussion syndrome in adults

open access: yesBMJ Open Sport & Exercise Medicine, 2020
Background Concussions among adult bicyclists are common, but little is known about the long-term effects of the consequences of these concussions such as postconcussion syndrome (PCS) including its occurrence, clinical features and recovery potential ...
Connor Moore   +3 more
doaj   +1 more source

Transport bicycles

open access: yesProceedings of the National Academy of Sciences, 1997
Uphill transport of one substrate (the driven substrate) can be coupled to the dissipation of an electrochemical potential gradient of another substrate (the driving substrate), to an exergonic chemical reaction, or to a photoreaction. In all cases, the driven substrate is taken up from a low concentration (or relatively low electrochemical potential ...
openaire   +3 more sources

Is Your Neighborhood Designed to Support Physical Activity? A Brief Streetscape Audit Tool. [PDF]

open access: yes, 2015
INTRODUCTION:Macro level built environment factors (eg, street connectivity, walkability) are correlated with physical activity. Less studied but more modifiable microscale elements of the environment (eg, crosswalks) may also affect physical activity ...
Cain, Kelli L   +9 more
core   +2 more sources

Laser Micromachining of Liquid Metal Patterns for Stretchable Electronic Circuits

open access: yesAdvanced Materials Technologies, EarlyView.
A cleanroom‐free fabrication strategy combines UV‐laser micromachining with a copper foil wetting layer to rapidly produce high resolution, liquid metal based stretchable electronic circuits on diverse substrates. The scalable, maskless process enables complex circuit designs (<$<$3 h, ∼$\sim$15/device) with excellent electrical stability under strain,
Merjen Palvanova   +3 more
wiley   +1 more source

Perceived risk for falls and decision-making in riding raised ramps in mountain biking: a pilot study

open access: yesFrontiers in Psychology, 2023
Mountain biking (MTB) is a challenging activity where riders face constant decisions on whether to attempt technical paths or features (e.g., wooden ramps and jumps) that pose risk for falls and injuries. Risk homeostasis theory posits that riders pursue
Emily P. Chilton, Stephen N. Robinovitch
doaj   +1 more source

Investigating the Influence of Dockless Electric Bike-share on Travel Behavior, Attitudes, Health, and Equity [PDF]

open access: yes, 2020
Cities throughout the world have implemented bike-share systems as a strategy for expanding mobility options. While these have attracted substantial ridership, little is known about their influence on travel behavior more broadly.
Fitch, Dillon, PhD   +2 more
core  

A Perspective on the Applications of Triphasic Gas Storage in Electrochemical Systems

open access: yesAdvanced Science, EarlyView.
Gas storage in microporous materials positioned locally at an electrode or electrocatalyst surface enhances electrochemical processes. Abstract Microporous materials store gases under dry conditions (e.g., hydrogen or oxygen via physisorption), but in some cases microporous materials also show triphasic (e.g., in a solid|gas|liquid system) gas storage ...
Zhongkai Li   +9 more
wiley   +1 more source

JTLU special issue editorial: Bicycling in changing urban regions

open access: yesJournal of Transport and Land Use, 2018
As communities around the globe contemplate the future of their transport portfolio, bicycling's role has increasingly cropped up as a key discussion point. Up until a few years ago, bicycling's value was largely fueled by a loyal advocacy base.
Kevin J. Krizek   +2 more
doaj   +1 more source

High‐Performance Ambipolar Organic Electrochemical Transistors Based on Diketopyrrolopyrrole‐Dialkoxybithiazole Conjugated Polymers for Single‐component Inverters

open access: yesAdvanced Science, EarlyView.
Two donor‐acceptor conjugated polymers, incorporating diketopyrrolopyrrole (DPP) and dialkoxybithiazole (2Tz) units with ethylene glycol (EG) side chains, exhibit relatively balanced ambipolar organic electrochemical transistor (OECT) performance. This ambipolarity enables the realization of single‐component complementary inverters capable of ternary ...
Jiazheng Li   +14 more
wiley   +1 more source

Evaluating the effects of data sparsity on the link-level bicycling volume estimation: A Graph Convolutional Neural Network approach

open access: yesJournal of Cycling and Micromobility Research
Accurate bicycling volume estimation is crucial for making informed decisions and planning about future investments in bicycling infrastructure. However, traditional link-level volume estimation models are effective for motorized traffic but face ...
Mohit Gupta   +4 more
doaj   +1 more source

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