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https://www.readbyqxmd.com/read/29142612/trends-and-patterns-of-air-quality-in-santa-cruz-de-tenerife-canary-islands-in-the-period-2011-2015
#1
Jose M Baldasano, Jordi Massagué
Air quality trends and patterns in the coastal city of Santa Cruz de Tenerife (Canary Islands, Spain) for the period 2011-2015 were analyzed. The orographic and meteorological characteristics, the proximity to the African continent, and the influence of the Azores anticyclone in combination with the anthropogenic (oil refinery, road/maritime traffic) and natural emissions create specific dispersion conditions. SO2, NO2, PM10, PM2.5, and O3 pollutants were assessed. The refinery was the primary source of SO2; EU hourly and daily average limit values were exceeded during 2011 and alert thresholds were reached in 2011 and 2012...
2017: Air Quality, Atmosphere, & Health
https://www.readbyqxmd.com/read/29135638/mountain-biking-injuries
#2
Majid Ansari, Ruhollah Nourian, Morteza Khodaee
With the increasing popularity of mountain biking, also known as off-road cycling, and the riders pushing the sport into extremes, there has been a corresponding increase in injury. Almost two thirds of acute injuries involve the upper extremities, and a similar proportion of overuse injuries affect the lower extremities. Mountain biking appears to be a high-risk sport for severe spine injuries. New trends of injury patterns are observed with popularity of mountain bike trail parks and freeride cycling. Using protective gear, improving technical proficiency, and physical fitness may somewhat decrease the risk of injuries...
November 2017: Current Sports Medicine Reports
https://www.readbyqxmd.com/read/29131980/pedestrians-perception-and-response-towards-vehicles-during-road-crossing-at-nighttime
#3
Venkatesh Balasubramanian, Rahul Bhardwaj
Pedestrian being involved in road traffic accidents (RTA) is about 22% of all road traffic related deaths. In this study, we have estimated the pedestrian's response towards an approaching vehicle and the time taken to correctly recognize it while they crossed the road in dim-light nighttime conditions. This is also extendable to cycles and other low powered vehicles. Thirty volunteers participated in this study. A collection of six videos, which comprised of different vehicle scenarios were shown to each of the participants...
November 10, 2017: Accident; Analysis and Prevention
https://www.readbyqxmd.com/read/29126635/on-road-and-laboratory-emissions-of-no-no2-nh3-n2o-and-ch4-from-late-model-eu-light-utility-vehicles-comparison-of-diesel-and-cng
#4
Michal Vojtíšek-Lom, Vít Beránek, Vojtěch Klír, Petr Jindra, Martin Pechout, Tomáš Voříšek
Exhaust emissions of eight Euro 6 light duty vehicles - two station wagons and six vans - half powered by diesel fuel and half by compressed natural gas (CNG) were examined using both chassis dynamometer and on-road testing. A portable on-board FTIR analyzer was used to measure concentrations of reactive nitrogen compounds - NO, NO2 and ammonia, of CO, formaldehyde, acetaldehyde and greenhouse gases CO2, methane and N2O. Exhaust flow was inferred from engine control unit data. Total emissions per cycle were compared and found to be in good agreement with laboratory measurements of NOX, CO and CO2 during dynamometer tests...
November 7, 2017: Science of the Total Environment
https://www.readbyqxmd.com/read/29119222/the-influence-of-an-injury-prevention-program-on-young-road-users-a-german-experience
#5
Thomas Brockamp, Paola Koenen, Michael Caspers, Bertil Bouillon, Michael Köhler, Uli Schmucker
PURPOSE: Trauma remains a leading cause of mortality and morbidity in youth. The Prevent Alcohol and Risk Related Trauma in Youth (P.A.R.T.Y.) program is an injury prevention program. The aim of the study was to analyze the influence on risk-taking behaviors and risk awareness on young road users by a pre-post-questionnaire. METHODS: A pre-post intervention study was performed using a standardized questionnaire. The questionnaire contained three sections with different items (in total 22) to identify differences regarding students' risk behavior and risk awareness...
November 8, 2017: European Journal of Trauma and Emergency Surgery: Official Publication of the European Trauma Society
https://www.readbyqxmd.com/read/29113952/do-all-roads-lead-to-the-rome-the-glycation-perspective
#6
REVIEW
Saheem Ahmad, Firoz Akhter, Uzma Shahab, Zeeshan Rafi, Mohd Sajid Khan, Rabia Nabi, Mohd Salman Khan, Khurshid Ahmad, Jalaluddin Mohammad Ashraf, Moinuddin
Oxidative, carbonyl, and glycative stress have gained substantial attention recently for their alleged influence on cancer progression. Oxidative stress can trigger variable transcription factors, such as nuclear factor erythroid-2-related factor (Nrf2), nuclear factor kappa B (NF-κB), protein-53 (p-53), activating protein-1 (AP-1), hypoxia-inducible factor-1α (HIF-1α), β-catenin/Wnt and peroxisome proliferator-activated receptor-γ (PPAR-γ). Activated transcription factors can lead to approximately 500 different alterations in gene expression, and can alter expression patterns of inflammatory cytokines, growth factors, regulatory cell cycle molecules, and anti-inflammatory molecules...
November 4, 2017: Seminars in Cancer Biology
https://www.readbyqxmd.com/read/29109686/ketone-diester-ingestion-impairs-time-trial-performance-in-professional-cyclists
#7
Jill J Leckey, Megan L Ross, Marc Quod, John A Hawley, Louise M Burke
We investigated the effect of pre- "race" ingestion of a 1,3-butanediol acetoacetate diester on blood ketone concentration, substrate metabolism and performance of a cycling time trial (TT) in professional cyclists. In a randomized cross-over design, 10 elite male cyclists completed a ~31 km laboratory-based TT on a cycling ergometer programmed to simulate the 2017 World Road Cycling Championships course. Cyclists consumed a standardized meal [2 g/kg body mass (BM) carbohydrate (CHO)] the evening prior to a trial day and a CHO breakfast (2 g/kg BM CHO) with 200 mg caffeine on the morning of a trial day...
2017: Frontiers in Physiology
https://www.readbyqxmd.com/read/29090864/children-s-perceptions-of-a-self-explaining-road-intervention-to-improve-neighbourhood-safety
#8
Rebekah Ryan, Jamie Hosking, Laura Wilkinson-Meyers, Shanthi Ameratunga
AIM: Safe neighbourhood environments can provide important spaces for child activity and well-being. Self-explaining roads (SERs), which reduce vehicle speeds by changing neighbourhood street design, are an intervention with known safety benefits. However, little is known about children's experiences of SERs. METHODS: We engaged schoolchildren in developing a project to articulate children's perspectives of SERs. Students actively researched the experiences of other children at their school, and then participated in a researcher-led focus group...
November 1, 2017: Journal of Paediatrics and Child Health
https://www.readbyqxmd.com/read/29034172/health-and-greenhouse-gas-mitigation-benefits-of-ambitious-expansion-of-cycling-walking-and-transit-in-california
#9
Neil Maizlish, Nicholas J Linesch, James Woodcock
The purpose of this research was to quantify health co-benefits and carbon reductions of preferred scenarios of California regional transportation plans and alternatives with ambitious levels of active transport. The alternatives were designed to examine the efficacy of independent contributions of walking, bicycling, and transit at levels consistent with the U.S. Surgeon General recommendation for physical activity. Using data from travel and health surveys, vital statistics, collision databases, and outputs from regional and statewide travel models, the Integrated Transport and Health Impacts Model estimated the change in the population disease burden, as measured by deaths and disability adjusted life years (DALYs), due to a shift from a 2010 baseline travel pattern to an alternative...
September 2017: Journal of Transport & Health
https://www.readbyqxmd.com/read/29034171/does-exposure-to-new-transport-infrastructure-result-in-modal-shifts-patterns-of-change-in-commute-mode-choices-in-a-four-year-quasi-experimental-cohort-study
#10
Eva Heinen, Amelia Harshfield, Jenna Panter, Roger Mackett, David Ogilvie
BACKGROUND: Intervention studies suggest that changing the built environment may encourage a modal shift from car travel towards active travel. However, little is known about the detail of patterns of changes in travel behaviour. METHOD: Adult commuters working in Cambridge (UK) completed annual questionnaires between 2009 and 2012. Commuting was assessed using a validated seven-day travel-to-work record. The intervention consisted of the opening of a guided busway with a path for walking and cycling in 2011...
September 2017: Journal of Transport & Health
https://www.readbyqxmd.com/read/29020093/a-shift-from-motorised-travel-to-active-transport-what-are-the-potential-health-gains-for-an-australian-city
#11
Belen Zapata-Diomedi, Luke D Knibbs, Robert S Ware, Kristiann C Heesch, Marko Tainio, James Woodcock, J Lennert Veerman
INTRODUCTION: An alarmingly high proportion of the Australian adult population does not meet national physical activity guidelines (57%). This is concerning because physical inactivity is a risk factor for several chronic diseases. In recent years, an increasing emphasis has been placed on the potential for transport and urban planning to contribute to increased physical activity via greater uptake of active transport (walking, cycling and public transport). In this study, we aimed to estimate the potential health gains and savings in health care costs of an Australian city achieving its stated travel targets for the use of active transport...
2017: PloS One
https://www.readbyqxmd.com/read/29019579/epidemiological-study-of-facial-fractures-at-the-oral-and-maxillofacial-surgery-service-santa-casa-de-misericordia-hospital-complex-porto-alegre-rs-brazil
#12
Rodrigo Andrighetti Zamboni, João Carlos Birnfeld Wagner, Maurício Roth Volkweis, Eduardo Luis Gerhardt, Elissa Muller Buchmann, Caren Serra Bavaresco
OBJECTIVES: to investigate the incidence and etiology of face trauma with diagnosis of facial fracture treated at the Buccomaxillofacial Surgery and Traumatology Service of the Santa Casa de Misericórdia Hospital Complex in Porto Alegre. METHODS: we conducted a cross-sectional, retrospective epidemiological study of 134 trauma victims with 153 facial fractures. RESULTS: the male gender was the most affected (86.6%) and the incidence was higher in the age group from 21 to 30 years...
September 2017: Revista do Colégio Brasileiro de Cirurgiões
https://www.readbyqxmd.com/read/28993517/revisiting-the-road-map-of-medullary-thymic-epithelial-cell-differentiation
#13
Chloé Michel, Corey N Miller, Rita Küchler, Benedikt Brors, Mark S Anderson, Bruno Kyewski, Sheena Pinto
The basic two-step terminal differentiation model of the medullary thymic epithelial cell (mTEC) lineage from immature MHC class II (MHCII)(lo) to mature MHCII(hi) mTECs has recently been extended to include a third stage, namely the post-Aire MHCII(lo) subset as identified by lineage-tracing models. However, a suitable surface marker distinguishing the phenotypically overlapping pre- from the post-Aire MHCII(lo) stage has been lacking. In this study, we introduce the lectin Tetragonolobus purpureas agglutinin (TPA) as a novel cell surface marker that allows for such delineation...
October 9, 2017: Journal of Immunology: Official Journal of the American Association of Immunologists
https://www.readbyqxmd.com/read/28982011/allocating-attention-to-detect-motorcycles-the-role-of-inattentional-blindness
#14
Kristen Pammer, Stephanie Sabadas, Stephanie Lentern
OBJECTIVE: To determine whether inattentional blindness (IB) can be used to understand the psychological mechanisms around looked-but-failed-to-see (LBFTS) crashes involving motorcycles Background: IB occurs when an observer looks directly at an object yet fails to see it, thus LBFTS crashes may be a real-world example of IB. The study tests a perceptual cycle model in which motorcycles are detected less frequently because they fall lower on the attentional hierarchy for driving. METHOD: A driving-related IB task with photographs of driving situations investigated whether an additional stimulus, a taxi or motorcycle, would be more likely to be missed by participants...
October 1, 2017: Human Factors
https://www.readbyqxmd.com/read/28953951/temporal-patterns-in-road-crossing-behaviour-in-roe-deer-capreolus-capreolus-at-sites-with-wildlife-warning-reflectors
#15
Jim-Lino Kämmerle, Falko Brieger, Max Kröschel, Robert Hagen, Ilse Storch, Rudi Suchant
Every year, there are millions of documented vehicle collisions involving cervids across Europe and North America. While temporal patterns in collision occurrence are relatively well described, few studies have targeted deer behaviour as a critical component of collision prevention. In this study, we investigated weekly and daily patterns in road crossing behaviour in roe deer. Using road crossing events and movement data obtained from GPS telemetry, we employed mixed-effect models to explain frequency and timing of crossings at five road segments by a number of predictors including traffic volume, deer movement activity and the presence of wildlife warning reflectors...
2017: PloS One
https://www.readbyqxmd.com/read/28952837/training-intensity-distribution-over-a-four-year-cycle-in-olympic-champion-rowers-different-roads-lead-to-rio
#16
Daniel J Plews, Paul B Laursen
The purpose of this study was to compare the training intensity distribution (TID) of the undefeated world champion male rowing New Zealand (kiwi) pair over a four-year Olympic cycle, across training phases, training years, and between individuals. Training data, including heart rate and boat speed, were recorded in the athletes rowing in the same boat between March 2013 and August 2016, ending with the Rio Olympics final. Progressive exercise tests assessed first (LT1) and second (LT2) lactate thresholds and associated heart rates, to determine the percentage of training performed below, between and above these demarcation points...
September 27, 2017: International Journal of Sports Physiology and Performance
https://www.readbyqxmd.com/read/28920706/do-night-and-around-the-clock-firefighters-shift-schedules-induce-deviation-in-tau-from-24-hours-of-systolic-and-diastolic-blood-pressure-circadian-rhythms
#17
Alain E Reinberg, Michael H Smolensky, Marc Riedel, Cedric Riedel, Eric Brousse, Yvan Touitou
Systolic (S) and diastolic (D) blood pressures (BP) [SBP and DBP] are circadian rhythmic with period (τ) in healthy persons assumed to be maintained at 24.0h. We tested this assumption in a sample of 30 healthy career (mean >12 yrs) 30-to-46 yr-old male Caucasian French firefighters (FFs) categorized into three groups according to work schedule and duties: Group A - 12 FFs working 12h day, 12h night, and occasionally 24h shifts and whose primary duties are firefighting plus paramedical and road rescue services; Group B - 9 FFs working mostly 12h day and 12h night shifts and whose duties are answering incoming emergency calls and coordinating service vehicle dispatch from fire stations with Group A personnel; Group C - 9 day shift (09:00-17:00h) FFs charged with administrative tasks...
2017: Chronobiology International
https://www.readbyqxmd.com/read/28917096/how-bicycle-level-of-traffic-stress-correlate-with-reported-cyclist-accidents-injury-severities-a-geospatial-and-mixed-logit-analysis
#18
Chen Chen, Jason C Anderson, Haizhong Wang, Yinhai Wang, Rachel Vogt, Salvador Hernandez
Transportation agencies need efficient methods to determine how to reduce bicycle accidents while promoting cycling activities and prioritizing safety improvement investments. Many studies have used standalone methods, such as level of traffic stress (LTS) and bicycle level of service (BLOS), to better understand bicycle mode share and network connectivity for a region. However, in most cases, other studies rely on crash severity models to explain what variables contribute to the severity of bicycle related crashes...
November 2017: Accident; Analysis and Prevention
https://www.readbyqxmd.com/read/28879069/biking-practices-and-preferences-in-a-lower-income-primarily-minority-neighborhood-learning-what-residents-want
#19
Anne C Lusk, Albert Anastasio, Nicholas Shaffer, Juan Wu, Yanping Li
This paper examines if, in a lower-income minority neighborhood, bicycling practices and bicycle-environment preferences of Blacks and Hispanics were different from Whites. During the summer of 2014, surveys were mailed to 1537 households near a proposed cycle track on Malcolm X Boulevard in Roxbury, MA. On the Boulevard, intercept surveys were distributed to cyclists and observations noted about passing cyclist's characteristics. Data were analyzed from 252 returned-mailed surveys, 120 intercept surveys, and 709 bicyclists...
September 2017: Preventive Medicine Reports
https://www.readbyqxmd.com/read/28865315/on-the-use-of-naturalistic-methods-to-examine-safety-relevant-behaviours-amongst-children-and-evaluate-a-cycling-education-program
#20
J Hatfield, M Dozza, D A Patton, P Maharaj, S Boufous, T Eveston
School-based cycling education programs aim to improve cycling safety and participation amongst children. Available research suggests that typical programs, which focus on bicycle manoeuvring skills, have limited effects on behaviour observed on a track or planned route. The current study uses theoretically more valid, naturalistic cycling data, to evaluate Safe Cycle, a program that incorporates hazard and self-awareness training. Soon after Safe Cycle was delivered at treatment schools, research bicycles instrumented with a rearward- and a forward-facing camera were loaned to six children from treatment schools and six children from (waitlist) control schools...
November 2017: Accident; Analysis and Prevention
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