Results 81 to 90 of about 92,101 (311)

Prevalence of, and risk factors for cycle helmet use in children in East Sussex and Kent. [PDF]

open access: yes, 1998
Objectives—To assess the level of cycle helmet wearing among young people in two counties in the South East of England in 1994, and to identify the factors associated with helmet wearing.
Davidson, Leslie L.   +2 more
core   +1 more source

The Bicycle Principles (Website): Zenodo Archive Release

open access: yes, 2022
This is the first release of the bikeprinciples.org website which contains the first citable version of the Bicycle Principles and a set of 14 recommendations to improve short-format training.
Sam Donovan   +31 more
core   +1 more source

Excited‐State Antiaromaticity in Nonbenzenoid Aromatics: Examining the Dynamics of Intramolecular Proton Transfer With a Small Driving Force

open access: yesAngewandte Chemie, EarlyView.
The excited‐state antiaromaticity of hydroxybenzotropyliums (HBTs) can be tuned through substituent effects to bring the aromatic ‘enol’ (E) and keto (K) tautomers close in energy. This leads to abnormally slow excited‐state proton transfer (on the ns timescale), giving rise to dual fluorescence emission and weak photoacidity.
Promeet K. Saha   +6 more
wiley   +2 more sources

The effect of different type of exercises on the isokinetic strength of quadriceps and hamstring muscles

open access: yesTürk Spor ve Egzersiz Dergisi, 2017
This study was conducted with the aim of investigating the effect of three different types of exercise on the isokinetic strength of quadriceps and hamstring muscles.
Alpaslan Gorucu, Bekir Tokay
doaj  

In-depth analysis of scenarios and injuries in crashes between cyclists and commercial vehicles in Germany

open access: yesTraffic Safety Research
Large vehicles such as buses and heavy goods vehicles (HGVs) pose a serious threat to cyclists and can cause serious injuries. Therefore, it is important to understand current safety issues related to these vehicles, to identify and to develop safety ...
Ron Schindler, Hanna Jeppsson
doaj   +1 more source

Characteristics, Management, and Utilization of Muscles in Musculoskeletal Humanoids: Empirical Study on Kengoro and Musashi

open access: yesAdvanced Intelligent Systems, EarlyView.
Musculoskeletal humanoids exhibit rich biomechanical properties that remain insufficiently unified in prior discussions. This article systematically categorizes muscle characteristics into five properties: redundancy, independency, anisotropy, variable moment arm, and nonlinear elasticity, and analyzes their combined effects on control.
Kento Kawaharazuka   +2 more
wiley   +1 more source

Milwaukee, Wisconsin 2009

open access: yes, 2009
Feb. 2009Includes text, index to bicycle stores, illustrations, "Bike Lane" diagram map.; "This map is a work in progress and will be reprinted in a year or two ...
Bicycle Federation of Wisconsin
core  

Three Component Thio‐ and Carboboration of Alkynes: A Modular Route to Functionalised Bicyclic Boronates

open access: yesAngewandte Chemie, EarlyView.
Three‐component thio‐ and carbo‐boration reactions to form functionalised benzoxaborinines and benzazaborinines are reported. The nucleophile scope includes thioethers, thiols, and (hetero)arenes. Mechanistic studies revealed a disparity between thioboration using thioethers and using thiols.
Laura Winfrey   +4 more
wiley   +2 more sources

Lidar‐Based Object Tracking of Traffic Participants with Sensor Nodes in Existing Urban Infrastructure

open access: yesAdvanced Intelligent Systems, EarlyView.
This paper presents a lidar‐based sensor node design and a rule‐based state observer for edge‐based traffic participant tracking. Unlike other state‐of‐the‐art methods, this state observer enables real‐time, CPU‐only edge processing without relying on machine learning approaches.
Simon Schäfer   +2 more
wiley   +1 more source

'Boda boda' bicycle taxis and their role in urban transport systems : case studies of Nakuru and Kisumu, Kenya

open access: yes, 2010
Includes abstract.Includes bibliographical references (leaves 117-120).The bicycle taxi has a padded cushion fitted onto a reinforced rear seat; typically removed when transporting goods.
Mutiso, Wilson Kasyoki
core  

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