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Joan Yw Liu, Cheryl Reeves, Beate Diehl, Antonietta Coppola, Aliya Al-Hajri, Chandrashekar Hoskote, Salim Al Mughairy, Mohamed Tachrount, Michael Groves, Zuzanna Michalak, Kevin Mills, Andrew W McEvoy, Anna Miserocchi, Sanjay M Sisodiya, Maria Thom
OBJECTIVE: This study reports on a novel brain pathology in young patients with Frontal Lobe Epilepsy that is distinct from Focal Cortical Dysplasia. METHODS: Surgical specimens from twenty young adults with frontal lobe epilepsy (mean age, 30 years) were investigated with histological/immunohistochemical markers for cortical laminar architecture, mammalian target of rapamycin pathway activation and inhibition, cellular autophagy, and synaptic vesicle-mediated trafficking as well as proteomics analysis...
October 20, 2016: Annals of Neurology
Grete Mehus, Alf Gunnar Mehus, Sidsel Germeten, Nils Henriksen
INTRODUCTION: Snowmobiling among young people in Scandinavia frequently leads to accidents and injuries. Systematic studies of accidents exist, but few studies have addressed young drivers' experiences. The aim of this article is to reveal how young people experience and interpret accidents, and to outline a prevention strategy. METHODS: Thirty-one girls and 50 boys aged 16-23 years from secondary schools in Northern Norway and on Svalbard, a Norwegian archipelago in the Arctic Ocean, participated in 17 focus groups segregated by gender...
October 2016: Rural and Remote Health
Fabien Aubret, Florent Bignon, Philippe J R Kok, Gaëlle Blanvillain
Egg-clustering and communal nesting behaviours provide advantages to offspring. Advantages range from anti-predatory benefits, maintenance of moisture and temperature levels within the nest, preventing the eggs from rolling, to enabling hatching synchrony through embryo communication. It was recently suggested that embryo communication may extend beyond development fine-tuning, and potentially convey information about the quality of the natal environment as well as provide an indication of forthcoming competition amongst siblings, conspecifics or even heterospecifics...
October 20, 2016: Scientific Reports
Nicklaus Fankhauser, Sylvain Aubry
C4 photosynthesis allows highly efficient carbon fixation that originates from tightly regulated anatomical and biochemical modifications of leaf architecture. Recent studies showed that leaf transcriptome modifications during leaf ontogeny of closely related C3 (Tarenaya hassleriana) and C4 (Gynandropsis gynandra) species within the Cleomaceae family existed but they did not identify any dedicated transcriptional networks or factors specifically driving C4 leaf ontogeny. RNAseq analysis provides a steady-state quantification of whole-cell mRNAs but does not allow any discrimination between transcriptional and post-transcriptional processes that may occur simultaneously during leaf ontogeny...
October 18, 2016: Journal of Experimental Botany
Silvia S Martins, Christine M Mauro, Julian Santaella-Tenorio, June H Kim, Magdalena Cerda, Katherine M Keyes, Deborah S Hasin, Sandro Galea, Melanie Wall
BACKGROUND: Little is known on how perceived availability of marijuana is associated with medical marijuana laws. We examined the relationship between medical marijuana laws (MML) and the prevalence of past-month marijuana use, with perceived availability of marijuana. METHODS: Data were from respondents included in the National Survey of Drug Use and Health restricted use data portal 2004-2013. Multilevel logistic regression of individual-level data was used to test differences between MML and non-MML states and changes in prevalence of past-month marijuana use and perceived availability from before to after passage of MML among adolescents, young adults and older adults controlling for demographics...
October 11, 2016: Drug and Alcohol Dependence
Chhaya M Werner, Kurt J Vaughn, Katharine L Stuble, Kristina Wolf, Truman P Young
The order of species arrival can dramatically alter the trajectory of community development. While there is experimental evidence that priority effects can be important drivers of community structure early on, the persistence and duration of these effects is unclear. Here we report on a community assembly experiment in which a mix of four native grasses and a mix of four native forbs were planted on their own, together, or with one-year priority over the other guild. We found positive effects of priority for both grasses and forbs in the initial years of the experiment...
September 2016: Ecological Applications: a Publication of the Ecological Society of America
Kari E Veblen, Lauren M Porensky, Corinna Riginos, Truman P Young
The widespread replacement of wild ungulate herbivores by domestic livestock in African savannas is composed of two interrelated phenomena: (1) loss or reduction in numbers of individual wildlife species or guilds and (2) addition of livestock to the system. Each can have important implications for plant community dynamics. Yet very few studies have experimentally addressed the individual, combined, and potentially interactive effects of wild vs. domestic herbivore species on herbaceous plant communities within a single system...
September 2016: Ecological Applications: a Publication of the Ecological Society of America
Katherine M Keyes, Joanne E Brady, Guohua Li
BACKGROUND: Alcohol and marijuana are among the most commonly used drugs by adolescents and young adults. The question of whether these two drugs are substitutes or complements has important implications for public policy and prevention strategies, especially as laws regarding the use of marijuana are rapidly changing. METHODS: Data were drawn from fatally injured drivers aged 16 to 25 who died within 1 h of the crash in nine states with high rates of toxicology testing based from 1999 to 2011 on the Fatality Analysis Reporting System (N = 7,191)...
December 2015: Injury Epidemiology
Regan W Bergmark, Emily Gliklich, Rong Guo, Richard E Gliklich
BACKGROUND: Texting while driving and other cell-phone reading and writing activities are high-risk activities associated with motor vehicle collisions and mortality. This paper describes the development and preliminary evaluation of the Distracted Driving Survey (DDS) and score. METHODS: Survey questions were developed by a research team using semi-structured interviews, pilot-tested, and evaluated in young drivers for validity and reliability. Questions focused on texting while driving and use of email, social media, and maps on cellular phones with specific questions about the driving speeds at which these activities are performed...
December 2016: Injury Epidemiology
Allison E Curry, Melissa R Pfeiffer, Michael R Elliott
INTRODUCTION: Graduated Driver Licensing (GDL) is the most effective strategy to reduce the burden of young driver crashes, but the extent to which young intermediate (newly licensed) drivers comply with, and police enforce, important GDL passenger and night-time restrictions is largely unknown. Population-level rates of intermediate drivers' compliance were estimated as well as police enforcement among crash-involved drivers who were noncompliant. METHODS: New Jersey's statewide driver licensing and crash databases were individually linked...
October 5, 2016: American Journal of Preventive Medicine
D K Briscoe, D M Parker, S Bograd, E Hazen, K Scales, G H Balazs, M Kurita, T Saito, H Okamoto, M Rice, J J Polovina, L B Crowder
BACKGROUND: The juvenile stage of loggerhead sea turtles (Caretta caretta) can last for decades. In the North Pacific Ocean, much is known about their seasonal movements in relation to pelagic habitat, yet understanding their multi-year, basin-scale movements has proven more difficult. Here, we categorize the large-scale movements of 231 turtles satellite tracked from 1997 to 2013 and explore the influence of biological and environmental drivers on basin-scale movement. RESULTS: Results show high residency of juvenile loggerheads within the Central North Pacific and a moderate influence of the Earth's magnetic field, but no real-time environmental driver to explain migratory behavior...
2016: Movement Ecology
Pierluigi Cordellieri, Francesca Baralla, Fabio Ferlazzo, Roberto Sgalla, Laura Piccardi, Anna Maria Giannini
In the present study, we investigated gender-related effects on road safety attitudes in 2681 young drivers (1458 males, 54.4%; aged 18-22) who filled out several scales assessing attitudes toward road safety issues, driving behavior in specific hypothetical situations, accident risk perception, and concerns about such a risk. We focused only on young drivers to better understand the role of gender in road safety attitudes in a period of life in which risky behaviors are widespread for males and females. Indeed, there is still no agreement as to the nature of these gender differences...
2016: Frontiers in Psychology
Jan Christian Kaiser, Reinhard Meckbach, Markus Eidemüller, Martin Selmansberger, Kristian Unger, Viktor Shpak, Maria Blettner, Horst Zitzelsberger, Peter Jacob
Strong evidence for the statistical association between radiation exposure and disease has been produced for thyroid cancer by epidemiological studies after the Chernobyl accident. However limitations of the epidemiological approach in order to explore health risks especially at low doses of radiation appear obvious. Statistical fluctuations due to small case numbers dominate the uncertainty of risk estimates. Molecular radiation markers have been searched extensively to separate radiation- induced cancer cases from sporadic cases...
October 11, 2016: Carcinogenesis
Kristen A Porter, Jim Turpin, Lisa Begg, Gina Brown, Nahida Chakhtoura, Elizabeth Church, Cynthia Grossman, Charles Wira, Fulvia Veronese
Adolescent boys and girls are disproportionately affected in the current HIV epidemic. Numerous sociobehavioral studies have addressed the indirect drivers surrounding this vulnerability-for example, socioeconomic, geographical locale, and all forms of violence. However, the direct factors that may influence infection, such as the anatomical and physiological maturation of the anogenital tracts of adolescents or the trauma and wound-healing processes of injured mucosal tissue, are understudied and represent a gap within the HIV prevention field...
October 2016: AIDS Research and Human Retroviruses
Caitlin Northcutt Pope, Tyler Reed Bell, Despina Stavrinos
Performing secondary tasks, such as texting while driving, is associated with an increased risk of motor vehicle collisions (MVCs). While cognitive processes, such as executive function, are involved in driving, little is known about the relationship between executive control and willingness to engage in distracted driving. This study investigated the relationship between age, behavioral manifestations of executive function, and self-reported distracted driving behaviors. Executive difficulty (assessed with the BRIEF-A) as well as demographics (age and gender) was considered as possible predictors of engagement in distracted driving behaviors...
October 4, 2016: Accident; Analysis and Prevention
Vanessa K Bowden, Shayne Loft, Monica Tatasciore, Troy A W Visser
Speed enforcement reduces incidences of speeding, thus reducing traffic accidents. Accordingly, it has been argued that stricter speed enforcement thresholds could further improve road safety. Effective speed monitoring however requires driver attention and effort, and human information-processing capacity is limited. Emphasizing speed monitoring may therefore reduce resource availability for other aspects of safe vehicle operation. We investigated whether lowering enforcement thresholds in a simulator setting would introduce further competition for limited cognitive and visual resources...
October 4, 2016: Accident; Analysis and Prevention
Seong-Min Park, Eun-Young Choi, Mingyun Bae, Sunshin Kim, Jong Bae Park, Heon Yoo, Jung Kyoon Choi, Youn-Jae Kim, Seung-Hoon Lee, In-Hoo Kim
Although several somatic single nucleotide variations in histone H3.3 have been investigated as cancer drivers, other types of aberration have not been well studied. Here, we demonstrate that overexpression of H3F3A, encoding H3.3, is associated with lung cancer progression and promotes lung cancer cell migration by activating metastasis-related genes. H3.3 globally activates gene expression through the occupation of intronic regions in lung cancer cells. Moreover, H3.3 binding regions show characteristics of regulatory DNA elements...
October 3, 2016: Nature Communications
Mohammed Al Azri, Hamed Al Reesi, Samir Al-Adawi, Abdullah Al Maniri, James Freeman
OBJECTIVE: Drivers' behaviors such as violations and errors have been demonstrated to predict crash involvement among young Omani drivers. However, there is a dearth of studies linking risky driving behaviors to the personality of young drivers. The aim of the present study was to assess such traits within a sample of young Omani drivers (as measured through the behavioral inhibition system, BIS, and the behavioral activation system, BAS) and determine links with aberrant driving behaviors and self-reported crash involvement...
September 30, 2016: Traffic Injury Prevention
Tae-Gyu Kim, Wi-Young So
Evaluating the biomechanical and performance factors of the knee joint during golf swing can provide objective and quantitative information about improving the performance and development of efficient physical training, as the legs are important for achieving an efficient swing and maximum speed of the club head in golf. In the present study, kinematic movements of the knee joint were identified during the downswing by using 3-dimensional motion analysis, and isokinetic strength was measured with driver and 5-iron clubs in 15 professional (PRO) golfers and 10 amateur (AMA) golfers...
September 23, 2016: Technology and Health Care: Official Journal of the European Society for Engineering and Medicine
James Dodington, Pina Violano, Carl R Baum, Kirsten Bechtel
Significant breakthroughs in the field of injury prevention and childhood safety have occurred during the past half-century. For example, the Poison Prevention Packaging Act of 1970 and the institution of child passenger safety laws are responsible for a significant reduction in injuries among children and adolescents. This review will focus on the following three topics because of their significant contribution to pediatric injury morbidity, especially among adolescents, and their promise for further effective prevention research...
September 27, 2016: Pediatric Research
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