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https://www.readbyqxmd.com/read/28647501/driving-simulators-in-the-clinical-assessment-of-fitness-to-drive-in-sleepy-individuals-a-systematic-review
#1
REVIEW
David R Schreier, Christina Banks, Johannes Mathis
Road traffic injuries are projected to be the leading cause of death for those aged between 15 and 29 years by the year 2030, and sleepiness is estimated to be the underlying cause in up to 15-20% of all motor vehicle accidents. Sleepiness at the wheel is most often caused by socially induced sleep deprivation or poor sleep hygiene in otherwise healthy individuals, medical disorders, or the intake of drugs. Validated methods for objectifying sleepiness are urgently sought, particularly in the context of driving...
May 4, 2017: Sleep Medicine Reviews
https://www.readbyqxmd.com/read/28646599/boldness-predicts-an-individual-s-position-along-an-exploration-exploitation-foraging-trade-off
#2
Samantha C Patrick, David Pinaud, Henri Weimerskirch
Individuals do not have complete information about the environment and therefore they face a trade-off between gathering information (exploration) and gathering resources (exploitation). Studies have shown individual differences in components of this trade-off but how stable these strategies are in a population and the intrinsic drivers of these differences is not well understood. Top marine predators are expected to experience a particularly strong trade-off as many species have large foraging ranges and their prey often have a patchy distribution...
June 24, 2017: Journal of Animal Ecology
https://www.readbyqxmd.com/read/28645891/health-app-use-among-individuals-with-symptoms-of-depression-and-anxiety-a-survey-study-with-thematic-coding
#3
Caryn Kseniya Rubanovich, David C Mohr, Stephen M Schueller
BACKGROUND: Researchers have largely turned to commercial app stores, randomized trials, and systematic reviews to make sense of the mHealth landscape. Few studies have approached understanding by collecting information from target end users. The end user perspective is critical as end user interest in and use of mHealth technologies will ultimately drive the efficacy of these tools. OBJECTIVE: The purpose of this study was to obtain information from end users of mHealth technologies to better understand the physical and mental health apps people use and for what purposes...
June 23, 2017: JMIR Mental Health
https://www.readbyqxmd.com/read/28644827/what-drives-cooperative-breeding
#4
Walter D Koenig
Cooperative breeding, in which more than a pair of conspecifics cooperate to raise young at a single nest or brood, is widespread among vertebrates but highly variable in its geographic distribution. Particularly vexing has been identifying the ecological correlates of this phenomenon, which has been suggested to be favored in populations inhabiting both relatively stable, productive environments and in populations living under highly variable and unpredictable conditions. Griesser et al. provide a novel approach to this problem, performing a phylogenetic analysis indicating that family living is an intermediate step between nonsocial and cooperative breeding birds...
June 23, 2017: PLoS Biology
https://www.readbyqxmd.com/read/28642842/the-tick-microbiome-why-non-pathogenic-microorganisms-matter-in-tick-biology-and-pathogen-transmission
#5
REVIEW
Sarah I Bonnet, Florian Binetruy, Angelica M Hernández-Jarguín, Olivier Duron
Ticks are among the most important vectors of pathogens affecting humans and other animals worldwide. They do not only carry pathogens however, as a diverse group of commensal and symbiotic microorganisms are also present in ticks. Unlike pathogens, their biology and their effect on ticks remain largely unexplored, and are in fact often neglected. Nonetheless, they can confer multiple detrimental, neutral, or beneficial effects to their tick hosts, and can play various roles in fitness, nutritional adaptation, development, reproduction, defense against environmental stress, and immunity...
2017: Frontiers in Cellular and Infection Microbiology
https://www.readbyqxmd.com/read/28642371/electrostatic-interactions-between-the-ctx-phage-minor-coat-protein-and-the-bacterial-host-receptor-tola-drives-the-pathogenic-conversion-of-vibrio-cholerae
#6
Laetitia Houot, Romain Navarro, Matthieu Nouailler, Denis Duché, Françoise Guerlesquin, Roland Lloubes
Vibrio cholerae is a natural inhabitant of aquatic environments and converts to a pathogen upon infection by a filamentous phage, CTXφ, that transmits the cholera toxin encoding genes. This toxigenic conversion of V. cholerae has evident implication in both genome plasticity and epidemic risk, but the early stages of the infection have not been thoroughly studied. CTXφ transit across the bacterial periplasm requires binding between the minor coat protein named pIII and a bacterial inner-membrane receptor, TolA, which is part of the conserved Tol-Pal molecular motor...
June 22, 2017: Journal of Biological Chemistry
https://www.readbyqxmd.com/read/28640391/selective-sweeps-of-mitochondrial-dna-can-drive-the-evolution-of-uniparental-inheritance
#7
Joshua R Christie, Madeleine Beekman
While the uniparental (or maternal) inheritance of mitochondrial DNA (mtDNA) is widespread, the reasons for its evolution remain unclear. Two main hypotheses have been proposed: selection against individuals containing different mtDNAs (heteroplasmy) and selection against "selfish" mtDNA mutations. Recently, uniparental inheritance was shown to promote adaptive evolution in mtDNA, potentially providing a third hypothesis for its evolution. Here we explore this hypothesis theoretically and ask if the accumulation of beneficial mutations provides a sufficient fitness advantage for uniparental inheritance to invade a population in which mtDNA is inherited biparentally...
June 22, 2017: Evolution; International Journal of Organic Evolution
https://www.readbyqxmd.com/read/28637128/maximizing-gait-and-balance-behaviors-and-decision-making-processes-of-persons-with-multiple-sclerosis-and-physical-therapists
#8
Elissa Held Bradford, Marcia Finlayson, Andrea White Gorman, Joanne Wagner
PURPOSE: To describe the behavioral decisions used by persons with multiple sclerosis (MS) and physical therapists to maximize gait and balance following outpatient physical therapy. METHODS: A multi-method case series with seven matched pairs (persons with MS-physical therapists). Quota sampling maximized variability among persons with MS (disease steps score range 3-6). Three of the four physical therapists were MS or neurology certified. Persons with MS completed a phone survey, follow-up interview, and standardized questionnaires...
February 7, 2017: Disability and Rehabilitation
https://www.readbyqxmd.com/read/28636616/temnothorax-rugatulus-ant-colonies-consistently-vary-in-nest-structure-across-time-and-context
#9
Nicholas DiRienzo, Anna Dornhaus
A host of animals build architectural constructions. Such constructions frequently vary with environmental and individual/colony conditions, and their architecture directly influences behavior and fitness. The nests of ant colonies drive and enable many of their collective behaviors, and as such are part of their 'extended phenotype'. Since ant colonies have been recently shown to differ in behavior and life history strategy, we ask whether colonies differ in another trait: the architecture of the constructions they create...
2017: PloS One
https://www.readbyqxmd.com/read/28631942/a-systematic-review-of-factors-affecting-driving-and-public-transportation-among-youth-and-young-adults-with-acquired-brain-injury
#10
Sally Lindsay, Andrei Stoica
PURPOSE: Although many people with an acquired brain injury (ABI) encounter difficulties with executive functioning and memory which could negatively affect driving, few people are assessed for fitness to drive after injury. The purpose of this systematic review was to synthesize the literature on factors affecting driving and public transportation among youth and young adults with ABI, post injury. METHOD: Seven databases were systematically searched for articles from 1980 to 2016...
June 20, 2017: Brain Injury: [BI]
https://www.readbyqxmd.com/read/28630470/overcoming-evolved-resistance-to-population-suppressing-homing-based-gene-drives
#11
John M Marshall, Anna Buchman, Héctor M Sánchez C, Omar S Akbari
The recent development of a CRISPR-Cas9-based homing system for the suppression of Anopheles gambiae is encouraging; however, with current designs, the slow emergence of homing-resistant alleles is expected to result in suppressed populations rapidly rebounding, as homing-resistant alleles have a significant fitness advantage over functional, population-suppressing homing alleles. To explore this concern, we develop a mathematical model to estimate tolerable rates of homing-resistant allele generation to suppress a wild population of a given size...
June 19, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28627505/monitoring-alert-and-drowsy-states-by-modeling-eeg-source-nonstationarity
#12
Sheng-Hsiou Hsu, Tzyy-Ping Jung
As a human brain performs various cognitive functions within ever-changing environments, states of the brain characterized by recorded brain activities such as electroencephalogram (EEG) are inevitably nonstationary. The challenges of analyzing the nonstationary EEG signals include finding neurocognitive sources that underlie different brain states and using EEG data to quantitatively assess the state changes. Approach. This study hypothesizes that brain activities under different states, e.g. levels of alertness, can be modeled as distinct compositions of statistically independent sources using independent component analysis (ICA)...
June 19, 2017: Journal of Neural Engineering
https://www.readbyqxmd.com/read/28623894/-doing-the-right-thing-factors-influencing-gp-prescribing-of-antidepressants-and-prescribed-doses
#13
Chris F Johnson, Brian Williams, Stephen A MacGillivray, Nadine J Dougall, Margaret Maxwell
BACKGROUND: Antidepressant prescribing continues to increase, with 5-16% of adults receiving antidepressants annually. Total prescribing growth is due in part to increased long-term use, greater selective serotonin re-uptake inhibitor (SSRI) use and the use of higher SSRI doses. Evidence does not support routine use of higher SSRI doses for depression treatment, and factors influencing the use of such doses are not well known. The aim of this study was to explore factors influencing GPs' use of antidepressants and their doses to treat depression...
June 17, 2017: BMC Family Practice
https://www.readbyqxmd.com/read/28622119/caffeine-adsorption-of-montmorillonite-in-coffee-extracts
#14
Takashi Shiono, Kenichiro Yamamoto, Yuko Yotsumoto, Aruto Yoshida
The growth in health-conscious consumers continues to drive the demand for a wide variety of decaffeinated beverages. We previously developed a new technology using montmorillonite (MMT) in selective decaffeination of tea extract. This study evaluated and compared decaffeination of coffee extract using MMT and activated carbon (AC). MMT adsorbed caffeine without significant adsorption of caffeoylquinic acids (CQAs), feruloylquinic acids (FQAs), dicaffeoylquinic acids (di-CQAs), or caffeoylquinic lactones (CQLs)...
June 16, 2017: Bioscience, Biotechnology, and Biochemistry
https://www.readbyqxmd.com/read/28622006/using-the-integrative-model-of-behavioral-prediction-to-understand-college-students-hookup-sex-beliefs-intentions-and-behaviors
#15
Minhao Dai, Kevin Wombacher, Jacob J Matig, Nancy Grant Harrington
Guided by the integrated model of behavioral prediction, this study explored the attitudinal, normative, and perceived control beliefs that predict college student hookup intentions and behavior. We first conducted elicitation research with six focus groups of undergraduate students to identify salient beliefs to inform questionnaire development, and then we collected and analyzed questionnaire data from 268 undergraduate students to explore the direct and indirect determinants that drive hookup behaviors. We compared proposed models that tested separate paths from determinants to intention and behavior to theoretical models that treated intention as a mediator of the determinant-behavior relationship...
June 16, 2017: Health Communication
https://www.readbyqxmd.com/read/28621652/region-level-obesity-projections-and-an-examination-of-its-correlates-in-quebec
#16
Deepa Jahagirdar, Ernest Lo
OBJECTIVES: Regional public health policy-makers frequently adopt obesity programs and objectives that have been established at global, provincial/state or national levels. However, the presence of substantial inter-regional disparities could render this practice inefficient. Studies that collectively assess obesity prevalence, temporal trends and their heterogeneity at the region level are rare, though they could be used to support better regional surveillance and planning. To address this gap, our study projected obesity prevalence time series to 2023 for 16 health regions in Quebec...
June 16, 2017: Canadian Journal of Public Health. Revue Canadienne de Santé Publique
https://www.readbyqxmd.com/read/28617640/microhabitat-and-climatic-niche-change-explain-patterns-of-diversification-among-frog-families
#17
Daniel S Moen, John J Wiens
A major goal of ecology and evolutionary biology is to explain patterns of species richness among clades. Differences in rates of net diversification (speciation minus extinction over time) may often explain these patterns, but the factors that drive variation in diversification rates remain uncertain. Three important candidates are climatic niche position (e.g., whether clades are primarily temperate or tropical), rates of climatic niche change among species within clades, and microhabitat (e.g., aquatic, terrestrial, arboreal)...
July 2017: American Naturalist
https://www.readbyqxmd.com/read/28612758/recording-nerve-signals-in-canine-sciatic-nerves-with-a-flexible-penetrating-microelectrode-array
#18
Donghak Byun, Sung-Joon Cho, Byeong Han Lee, Joongkee Min, Jong-Hyun Lee, Sohee Kim
OBJECTIVE: Previously, we presented the fabrication and characterization of a flexible penetrating microelectrode array (FPMA) as a neural interface device. In the present study, we aim to prove the feasibility of the developed FPMA as a chronic intrafascicular recording tool for peripheral applications. APPROACH: For recording from the peripheral nerves of medium-sized animals, the FPMA was integrated with an interconnection cable and other parts that were designed to fit canine sciatic nerves...
June 14, 2017: Journal of Neural Engineering
https://www.readbyqxmd.com/read/28610814/analyzing-crowdsourced-ratings-of-speech-based-take-over-requests-for-automated-driving
#19
P Bazilinskyy, J C F de Winter
Take-over requests in automated driving should fit the urgency of the traffic situation. The robustness of various published research findings on the valuations of speech-based warning messages is unclear. This research aimed to establish how people value speech-based take-over requests as a function of speech rate, background noise, spoken phrase, and speaker's gender and emotional tone. By means of crowdsourcing, 2669 participants from 95 countries listened to a random 10 out of 140 take-over requests, and rated each take-over request on urgency, commandingness, pleasantness, and ease of understanding...
October 2017: Applied Ergonomics
https://www.readbyqxmd.com/read/28607051/computationally-optimized-deimmunization-libraries-yield-highly-mutated-enzymes-with-low-immunogenicity-and-enhanced-activity
#20
Regina S Salvat, Deeptak Verma, Andrew S Parker, Jack R Kirsch, Seth A Brooks, Chris Bailey-Kellogg, Karl E Griswold
Therapeutic proteins of wide-ranging function hold great promise for treating disease, but immune surveillance of these macromolecules can drive an antidrug immune response that compromises efficacy and even undermines safety. To eliminate widespread T-cell epitopes in any biotherapeutic and thereby mitigate this key source of detrimental immune recognition, we developed a Pareto optimal deimmunization library design algorithm that optimizes protein libraries to account for the simultaneous effects of combinations of mutations on both molecular function and epitope content...
June 12, 2017: Proceedings of the National Academy of Sciences of the United States of America
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