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https://www.readbyqxmd.com/read/28509423/analysis-of-the-relationship-between-the-double-transverse-foramen-and-the-possibility-of-developing-clinical-symptoms-after-whiplash
#1
Juan A Sanchis-Gimeno, Marcelino Perez-Bermejo, Luis Rios, Susanna Llido, Markus Bastir, Esther Blanco-Perez, Federico Mata-Escolano
INTRODUCTION: Currently there is no information about the possibility of developing clinical symptoms after whiplash in double transverse foramen subjects. Our aim was to test whether subjects with double transverse foramen have an increased risk of presenting with acute headache, dizziness, vertebral artery dissection, and vomiting after whiplash. METHODS: We recorded the absence/presence of double transverse foramen, and the absence/presence of neck pain, acute headache, dizziness, vertebral artery dissection, and vomiting in 85 patients who had suffered whiplash injuries in car rear-end impacts in road traffic accidents...
May 16, 2017: Clinical Anatomy
https://www.readbyqxmd.com/read/28500990/evaluating-the-safety-impact-of-adaptive-cruise-control-in-traffic-oscillations-on-freeways
#2
Ye Li, Zhibin Li, Hao Wang, Wei Wang, Lu Xing
Adaptive cruise control (ACC) has been considered one of the critical components of automated driving. ACC adjusts vehicle speeds automatically by measuring the status of the ego-vehicle and leading vehicle. Current commercial ACCs are designed to be comfortable and convenient driving systems. Little attention is paid to the safety impacts of ACC, especially in traffic oscillations when crash risks are the highest. The primary objective of this study was to evaluate the impacts of ACC parameter settings on rear-end collisions on freeways...
May 10, 2017: Accident; Analysis and Prevention
https://www.readbyqxmd.com/read/28499140/is-vehicle-automation-enough-to-prevent-crashes-role-of-traffic-operations-in-automated-driving-environments-for-traffic-safety
#3
Eunbi Jeong, Cheol Oh, Seolyoung Lee
Automated driving systems (ADSs) are expected to prevent traffic accidents caused by driver carelessness on freeways. There is no doubt regarding this safety benefit if all vehicles in the transportation system were equipped with ADSs; however, it is implausible to expect that ADSs will reach 100% market penetration rate (MPR) in the near future. Therefore, the following question arises: 'Can ADSs, which consider only situations in the vicinity of an equipped vehicle, really contribute to a significant reduction in traffic accidents?' To address this issue, the interactions between equipped and unequipped vehicles must be investigated, which is the purpose of this study...
May 9, 2017: Accident; Analysis and Prevention
https://www.readbyqxmd.com/read/28494260/examination-of-the-reliability-of-the-crash-modification-factors-using-empirical-bayes-method-with-resampling-technique
#4
Jung-Han Wang, Mohamed Abdel-Aty, Ling Wang
There have been plenty of studies intended to use different methods, for example, empirical Bayes before-after methods, to get accurate estimation of CMFs. All of them have different assumptions toward crash count if there was no treatment. Additionally, another major assumption is that multiple sites share the same true CMF. Under this assumption, the CMF at an individual intersection is randomly drawn from a normally distributed population of CMFs at all intersections. Since CMFs are non-zero values, the population of all CMFs might not follow normal distributions, and even if it does, the true mean of CMFs at some intersections may be different from that at others...
May 8, 2017: Accident; Analysis and Prevention
https://www.readbyqxmd.com/read/28454872/effects-of-an-integrated-collision-warning-system-on-teenage-driver-behavior
#5
Jessica S Jermakian, Shan Bao, Mary Lynn Buonarosa, James R Sayer, Charles M Farmer
INTRODUCTION: Crash warning systems have been shown to provide safety benefits, but no studies have examined how teenagers respond. This study sought to find out whether young, inexperienced drivers change behavior in response to warnings. METHODS: Forty 16-17 year-olds drove an instrumented vehicle equipped with a system that warned for lane departures and potential rear-end and lane change/merge crashes. Participants were randomly assigned to experimental or control groups, and their driving was monitored for 14weeks during 2011-12...
June 2017: Journal of Safety Research
https://www.readbyqxmd.com/read/28429637/analysis-of-rotation-angles-and-motions-of-the-flexible-mechanisms-in-bifurcated-blood-vessels
#6
Bin He, Shoulin Xu, An Ding, Yanmin Zhou
This article investigates the relationship of rotation angle of two ends of elastic guidewires, and motion method of guidewires and catheters in bifurcated blood vessels. The relationship of rotation angles of the two ends of the guidewire has first been studied by mathematical reasoning, indicating that the rotation angle of the front end of guidewire can be precisely described by that of the rear end. In order to satisfy the requirements of different vascular interventional surgeries, we further investigated a general model of bifurcated human blood vessels...
April 1, 2017: Proceedings of the Institution of Mechanical Engineers. Part H, Journal of Engineering in Medicine
https://www.readbyqxmd.com/read/28407100/seqa-structures-behind-escherichia-coli-replication-forks-affect-replication-elongation-and-restart-mechanisms
#7
Ida Benedikte Pedersen, Emily Helgesen, Ingvild Flåtten, Solveig Fossum-Raunehaug, Kirsten Skarstad
The SeqA protein binds hemi-methylated GATC sites and forms structures that sequester newly replicated origins and trail the replication forks. Cells that lack SeqA display signs of replication fork disintegration. The broken forks could arise because of over-initiation (the launching of too many forks) or lack of dynamic SeqA structures trailing the forks. To confirm one or both of these possible mechanisms, we compared two seqA mutants with the oriCm3 mutant. The oriCm3 mutant over-initiates because of a lack of origin sequestration but has wild-type SeqA protein...
April 12, 2017: Nucleic Acids Research
https://www.readbyqxmd.com/read/28340317/opportunities-for-crash-and-injury-reduction-a-multiharm-approach-for-crash-data-analysis
#8
Ann Mallory, Allison Kender, Kevin Moorhouse
OBJECTIVE: A multiharm approach for analyzing crash and injury data was developed for the ultimate purpose of getting a richer picture of motor vehicle crash outcomes for identifying research opportunities in crash safety. METHODS: Methods were illustrated using a retrospective analysis of 69,597 occupant cases from NASS CDS from 2005 to 2015. Occupant cases were analyzed by frequency and severity of outcome: fatality, injury by Abbreviated Injury Scale (AIS), number of cases, attributable fatality, disability, and injury costs...
March 24, 2017: Traffic Injury Prevention
https://www.readbyqxmd.com/read/28326809/identifying-factors-affecting-the-safety-of-mid-block-bicycle-lanes-considering-mixed-two-wheeled-traffic-flow
#9
Lu Bai, Ching-Yao Chan, Pan Liu, Chengcheng Xu
OBJECTIVE: Electric bikes (e-bikes) were one of the fastest growing trip modes in Southeast Asia over the past two decades. The increasing popularity of e-bikes raised some safety concerns on urban transport system. The primary objective of this study was to identify whether and how the generalized linear regression model (GLM) could be used to relate the cyclists' safety with various contributing factors when they were riding in a mid-block bike lane. The types of two-wheeled vehicles in the study included bicycle style electric bicycles (BSEBs), scooter style electric bicycles (SSEBs) and regular bicycles (RBs)...
March 22, 2017: Traffic Injury Prevention
https://www.readbyqxmd.com/read/28315616/counterfactual-simulations-applied-to-shrp2-crashes-the-effect-of-driver-behavior-models-on-safety-benefit-estimations-of-intelligent-safety-systems
#10
Jonas Bärgman, Christian-Nils Boda, Marco Dozza
As the development and deployment of in-vehicle intelligent safety systems (ISS) for crash avoidance and mitigation have rapidly increased in the last decades, the need to evaluate their prospective safety benefits before introduction has never been higher. Counterfactual simulations using relevant mathematical models (for vehicle dynamics, sensors, the environment, ISS algorithms, and models of driver behavior) have been identified as having high potential. However, although most of these models are relatively mature, models of driver behavior in the critical seconds before a crash are still relatively immature...
March 15, 2017: Accident; Analysis and Prevention
https://www.readbyqxmd.com/read/28296466/road-accident-fatality-risks-for-vulnerable-versus-protected-road-users-in-northern-ghana
#11
James Damsere-Derry, Gavan Palk, Mark King
Background Road traffic injuries (RTIs) are a serious epidemic which claims more than a million lives across the globe each year. The burden of RTIs is particularly pronounced in Africa and other low and middle income countries. The unfavourable disparity of the burden of road trauma in the world is largely attributable to unsafe vehicles, lack of appropriate road infrastructure and the predominance of vulnerable road users (VRUs) in developing countries. However, little research exists in Northern Ghana to highlight the scale and risk of death among road users...
March 15, 2017: Traffic Injury Prevention
https://www.readbyqxmd.com/read/28259022/safety-evaluation-of-intersections-with-dynamic-use-of-exit-lanes-for-left-turn-using-field-data
#12
Jing Zhao, Yue Liu
As a newly proposed unconventional intersection design, the exit-lanes for left-turn (EFL) intersection is found to be effective in increasing the intersection capacity with high level of application flexibility, especially under heavy left-turn traffic conditions. However, the operational safety of EFL is of most concern to the authority prior to its implementation. This paper evaluates the safety of the EFL intersections by studying the behavior of left-turn maneuvers using field data collected at 7 locations in China...
May 2017: Accident; Analysis and Prevention
https://www.readbyqxmd.com/read/28217389/management-of-parturients-in-active-labor-with-arnold-chiari-malformation-tonsillar-herniation-and-syringomyelia
#13
Ramsis F Ghaly, Tatiana Tverdohleb, Kenneth D Candido, Nebojsa Nick Knezevic
BACKGROUND: Arnold-Chiari malformation Type 1 (ACM-1) in parturients is a topic of ongoing discussion between obstetricians and anesthesiologists. The primary unanswered question remains; How should the anesthesia provider proceed with labor analgesia and anesthesia for cesarean section when confronted with an advanced, asymptomatic, or minimally symptomatic case of ACM-1 during labor? CASE DESCRIPTION: A 24-year-old, ASA II, G1P0 full-term parturient presented to Labor and Delivery for vaginal delivery...
2017: Surgical Neurology International
https://www.readbyqxmd.com/read/28214757/staining-in-firearm-barrels-after-experimental-contact-shots
#14
C Schyma, K Bauer, J Brünig, C Courts, B Madea
After contact shots to the head biological traces inside firearm barrels can be found. This study was conducted to simulate and to evaluate such staining. Five current handguns of four inch barrel length in the calibre .22 long rifle, 7.65mm Browning, 9mm Luger and .38 special were used to perform 24 contact shots on silicone coated, gelatine filled box models using the triple contrast method. The staining was documented by endoscopy and swabs gathered from both ends of the barrel were analysed by quantitative PCR...
February 10, 2017: Forensic Science International
https://www.readbyqxmd.com/read/28162916/investigation-on-occupant-injury-severity-in-rear-end-crashes-involving-trucks-as-the-front-vehicle-in-beijing-area-china
#15
Quan Yuan, Meng Lu, Athanasios Theofilatos, Yi-Bing Li
PURPOSE: Rear-end crashes attribute to a large portion of total crashes in China, which lead to many casualties and property damage, especially when involving commercial vehicles. This paper aims to investigate the critical factors for occupant injury severity in the specific rear-end crash type involving trucks as the front vehicle (FV). METHODS: This paper investigated crashes occurred from 2011 to 2013 in Beijing area, China and selected 100 qualified cases i...
February 2017: Chinese Journal of Traumatology, Zhonghua Chuang Shang za Zhi
https://www.readbyqxmd.com/read/28129576/evaluating-the-effectiveness-of-active-vehicle-safety-systems
#16
Eunbi Jeong, Cheol Oh
Advanced vehicle safety systems have been widely introduced in transportation systems and are expected to enhance traffic safety. However, these technologies mainly focus on assisting individual vehicles that are equipped with them, and less effort has been made to identify the effect of vehicular technologies on the traffic stream. This study proposed a methodology to assess the effectiveness of active vehicle safety systems (AVSSs), which represent a promising technology to prevent traffic crashes and mitigate injury severity...
March 2017: Accident; Analysis and Prevention
https://www.readbyqxmd.com/read/28043070/opportunities-and-limitations-for-intersection-collision-intervention-a-study-of-real-world-left-turn-across-path-accidents
#17
Ulrich Sander
Turning across the path of oncoming vehicle accidents are frequent and dangerous. To date not many car manufacturers have introduced Automated Emergency Braking (AEB) systems addressing this type of conflict situation, but it is foreseeable that these scenarios will be part of the Euro NCAP 2020 rating. Nine out of ten collisions are caused by the driver of the turning vehicle. An AEB system evaluating the ego and conflict vehicle driver's possibilities to avoid a pending crash by either braking or steering was specified for application in various constellations of vehicle collisions...
February 2017: Accident; Analysis and Prevention
https://www.readbyqxmd.com/read/28043069/comparison-of-multivariate-poisson-lognormal-spatial-and-temporal-crash-models-to-identify-hot-spots-of-intersections-based-on-crash-types
#18
COMPARATIVE STUDY
Wen Cheng, Gurdiljot Singh Gill, Ravi Dasu, Meiquan Xie, Xudong Jia, Jiao Zhou
Most of the studies are focused on the general crashes or total crash counts with considerably less research dedicated to different crash types. This study employs the Systemic approach for detection of hotspots and comprehensively cross-validates five multivariate models of crash type-based HSID methods which incorporate spatial and temporal random effects. It is anticipated that comparison of the crash estimation results of the five models would identify the impact of varied random effects on the HSID. The data over a ten year time period (2003-2012) were selected for analysis of a total 137 intersections in the City of Corona, California...
February 2017: Accident; Analysis and Prevention
https://www.readbyqxmd.com/read/27993391/injury-threshold-of-rectus-capitis-muscles-at-the-atlanto-occipital-joint
#19
Richard C Hallgren
OBJECTIVE: The objective of this study was to collect muscle stiffness data from the 4 rectus capitis (RC) muscles to better understand their role in stabilizing the atlanto-occipital joint. The passive load displacement properties of these muscles have not been previously reported. METHODS: Rectus capitis muscles were removed from 3 unembalmed head and neck specimens. Passive length-force (stiffness) data were collected by using a servo-controlled hydraulic test machine...
February 2017: Journal of Manipulative and Physiological Therapeutics
https://www.readbyqxmd.com/read/27898367/effectiveness-of-forward-collision-warning-and-autonomous-emergency-braking-systems-in-reducing-front-to-rear-crash-rates
#20
Jessica B Cicchino
The objective of this study was to evaluate the effectiveness of forward collision warning (FCW) alone, a low-speed autonomous emergency braking (AEB) system operational at speeds up to 19mph that does not warn the driver prior to braking, and FCW with AEB that operates at higher speeds in reducing front-to-rear crashes and injuries. Poisson regression was used to compare rates of police-reported crash involvements per insured vehicle year in 22 U.S. states during 2010-2014 between passenger vehicle models with FCW alone or with AEB and the same models where the optional systems were not purchased, controlling for other factors affecting crash risk...
February 2017: Accident; Analysis and Prevention
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