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https://www.readbyqxmd.com/read/29149913/subadditive-responses-to-extremely-short-blue-and-green-pulsed-light-on-visual-evoked-potentials-pupillary-constriction-and-electroretinograms
#1
Soomin Lee, Yuria Uchiyama, Yoshihiro Shimomura, Tetsuo Katsuura
BACKGROUND: The simultaneous exposure to blue and green light was reported to result in less melatonin suppression than monochromatic exposure to blue or green light. Here, we conducted an experiment using extremely short blue- and green-pulsed light to examine their visual and nonvisual effects on visual evoked potentials (VEPs), pupillary constriction, electroretinograms (ERGs), and subjective evaluations. METHODS: Twelve adult male subjects were exposed to three light conditions: blue-pulsed light (2...
November 17, 2017: Journal of Physiological Anthropology
https://www.readbyqxmd.com/read/29149683/online-sexual-solicitation-by-adults-and-peers-results-from-a-population-based-german-sample
#2
Halina Sklenarova, Anja Schulz, Petya Schuhmann, Michael Osterheider, Janina Neutze
Prevalence of Internet use among adolescents is high, but little is known about the online sexual activities of German adolescents. This study aimed to describe the 12-month prevalence of German adolescents' online sexual experiences with a focus on Online Sexual Solicitation (OSS, subjectively negative online sexual experiences with a peer or any sexual online experience, positive or negative, with an adult). A sample of male and female adolescents aged 14-17 (N=2238) was recruited using online survey panel...
November 14, 2017: Child Abuse & Neglect
https://www.readbyqxmd.com/read/29149207/evolution-of-the-metabolome-in-response-to-selection-for-increased-immunity-in-populations-of-drosophila-melanogaster
#3
Navdeep Gogna, Rakesh Sharma, Vanika Gupta, Kavita Dorai, N G Prasad
We used NMR-based metabolomics to test two hypotheses-(i) there will be evolved differences in the metabolome of selected and control populations even under un-infected conditions and (ii) post infection, the metabolomes of the selected and control populations will respond differently. We selected replicate populations of Drosophila melanogaster for increased survivorship (I) against a gram-negative pathogen. We subjected the selected (I) and their control populations (S) to three different treatments: (1) infected with heat-killed bacteria (i), (2) sham infected (s), and (3) untreated (u)...
2017: PloS One
https://www.readbyqxmd.com/read/29148230/personality-traits-such-as-neuroticism-and-disability-predict-psychological-distress-in-medically-unexplained-symptoms-a-three-year-experience-from-a-single-centre
#4
Vikas Menon, Balasubramanian Shanmuganathan, Jaiganesh Selvapandian Thamizh, Anand Babu Arun, Pooja Patnaik Kuppili, Siddharth Sarkar
BACKGROUND: People with medically unexplained symptoms (MUS) may have psychological co-morbidities. AIMS: Our objectives were to assess the rates and identify correlates of psychological distress in MUS. METHODS: A total of 171 subjects with MUS seeking treatment at a tertiary care facility were assessed over a 3-year period. Psychological distress was assessed using the Tamil version of General Health Questionnaire-12. Apart from socio-demographic factors, personality, coping, perceived social support and subjective disability were assessed using standard instruments...
November 17, 2017: Personality and Mental Health
https://www.readbyqxmd.com/read/29148135/cadence-tracking-and-disturbance-rejection-in-functional-electrical-stimulation-cycling-for-paraplegic-subjects-a-case-study
#5
Lucas O da Fonseca, Antônio P L Bó, Juliana A Guimarães, Miguel E Gutierrez, Emerson Fachin-Martins
Functional electrical stimulation cycling has been proposed as an assistive technology with numerous health and fitness benefits for people with spinal cord injury, such as improvement in cardiovascular function, increase in muscular mass, and reduction of bone mass loss. However, some limitations, for example, lack of optimal control strategies that would delay fatigue, may still prevent this technology from achieving its full potential. In this work, we performed experiments on a person with complete spinal cord injury using a stationary tadpole trike when both cadence tracking and disturbance rejection were evaluated...
November 2017: Artificial Organs
https://www.readbyqxmd.com/read/29148120/mapping-brown-adipose-tissue-based-on-fat-water-fraction-provided-by-z-spectral-imaging
#6
Alessandro Scotti, Rong-Wen Tain, Weiguo Li, Victoria Gil, Chong Wee Liew, Kejia Cai
BACKGROUND: Brown adipose tissue (BAT) has a great relevance in metabolic diseases and has been shown to be reduced in obesity and insulin resistance patients. Currently, Dixon MRI is used to calculate fat-water fraction (FWF) and differentiate BAT from white adipose tissue (WAT). However, it may fail in areas of phase wrapping and introduce fat-water swapping artifacts. PURPOSE: To investigate the capacity of the Z-spectrum imaging (ZSI) for the identification of BAT in vivo...
November 17, 2017: Journal of Magnetic Resonance Imaging: JMRI
https://www.readbyqxmd.com/read/29147820/cue-signal-response-analysis-in-3d-chondrocyte-scaffolds-with-anabolic-stimuli
#7
Michael Neidlin, Antonion Korcari, Giorgos Macheras, Leonidas G Alexopoulos
Articular cartilage is an avascular connective tissue responsible for bearing loads. Cell signaling plays a central role in cartilage homeostasis and tissue engineering by directing chondrocytes to synthesize/degrade the extracellular matrix or promote inflammatory responses. The aim of this paper was to investigate anabolic, catabolic and inflammatory pathways of well-known and underreported anabolic stimuli in 3D chondrocyte cultures and connect them to diverse cartilage responses including matrix regeneration and cell communication...
November 16, 2017: Annals of Biomedical Engineering
https://www.readbyqxmd.com/read/29147737/genetic-dissection-of-early-season-cold-tolerance-in-sorghum-genome-wide-association-studies-for-seedling-emergence-and-survival-under-field-and-controlled-environment-conditions
#8
Sebastian Parra-Londono, Karin Fiedler, Mareike Kavka, Birgit Samans, Silke Wieckhorst, Arndt Zacharias, Ralf Uptmoor
A QTL on sorghum chromosome SBI-06 putatively improves field emergence under low-temperature conditions. Low temperatures decisively limit seedling emergence and vigor during early growth of sorghum and, thus, strongly impair geographical expansion. To broaden sorghum cultivation to temperate regions, the establishment of cold-tolerant genotypes is a prioritized breeding goal. The present study aims at the quantification of seedling emergence and survival under chilling temperatures and the detection of marker-trait associations controlling temperature-related seedling establishment...
November 16, 2017: TAG. Theoretical and Applied Genetics. Theoretische und Angewandte Genetik
https://www.readbyqxmd.com/read/29147467/problematic-communications-during-2016-fellowship-recruitment-in-internal-medicine
#9
Patricia A Cornett, Chris Williams, Richard L Alweis, John McConville, Michael Frank, Bhavin Dalal, Richard I Kopelman, Vera P Luther, Alec B O'connor, Elaine A Muchmore
Some internal medicine residency program directors have expressed concerns that their third-year residents may have been subjected to inappropriate communication during the 2016 fellowship recruitment season. The authors sought to study applicants' interpersonal communication experiences with fellowship programs. Many respondents indicated that they had been asked questions that would constitute violations of the National Residency Matching Program (NRMP) Communications Code of Conduct agreement, including how they plan to rank specific programs...
2017: Journal of Community Hospital Internal Medicine Perspectives
https://www.readbyqxmd.com/read/29147144/effects-of-spectral-smearing-of-stimuli-on-the-performance-of-auditory-steady-state-response-based-brain-computer-interface
#10
Jong Ho Hwang, Kyoung Won Nam, Dong Pyo Jang, In Young Kim
There have been few reports that investigated the effects of the degree and pattern of a spectral smearing of stimuli due to deteriorated hearing ability on the performance of auditory brain-computer interface (BCI) systems. In this study, we assumed that such spectral smearing of stimuli may affect the performance of an auditory steady-state response (ASSR)-based BCI system and performed subjective experiments using 10 normal-hearing subjects to verify this assumption. We constructed smearing-reflected stimuli using an 8-channel vocoder with moderate and severe hearing loss setups and, using these stimuli, performed subjective concentration tests with three symmetric and six asymmetric smearing patterns while recording electroencephalogram signals...
December 2017: Cognitive Neurodynamics
https://www.readbyqxmd.com/read/29147143/analyzing-text-recognition-from-tactually-evoked-eeg
#11
A Khasnobish, S Datta, R Bose, D N Tibarewala, A Konar
Tactual exploration of objects produce specific patterns in the human brain and hence objects can be recognized by analyzing brain signals during tactile exploration. The present work aims at analyzing EEG signals online for recognition of embossed texts by tactual exploration. EEG signals are acquired from the parietal region over the somatosensory cortex of blindfolded healthy subjects while they tactually explored embossed texts, including symbols, numbers, and alphabets. Classifiers based on the principle of supervised learning are trained on the extracted EEG feature space, comprising three features, namely, adaptive autoregressive parameters, Hurst exponents, and power spectral density, to recognize the respective texts...
December 2017: Cognitive Neurodynamics
https://www.readbyqxmd.com/read/29147137/preventing-disability-in-inflammatory-bowel-disease
#12
REVIEW
Patrick B Allen, Corinne Gower-Rousseau, Silvio Danese, Laurent Peyrin-Biroulet
Disability is a common worldwide health challenge and it has been increasing over the past 3 decades. The treatment paradigm has changed dramatically in inflammatory bowel diseases (IBDs) from control of symptoms towards full control of disease (clinical and endoscopic remission) with the goal of preventing organ damage and disability. These aims are broadly similar to rheumatoid arthritis and multiple sclerosis. Since the 1990s, our attention has focused on quality of life in IBD, which is a subjective measure...
November 2017: Therapeutic Advances in Gastroenterology
https://www.readbyqxmd.com/read/29146989/pain-dilates-time-perception
#13
Amandine E Rey, George A Michael, Corina Dondas, Marvin Thar, Luis Garcia-Larrea, Stéphanie Mazza
We have all experienced that time seems stretched during unpleasant situations. While there is evidence of subjective time overestimation when perceiving external unpleasant stimuli, no study has measured the dilation of time when individuals experience an unpleasant situation in their own body. Here we measured the time dilation induced by a painful homeostatic deviance using temporal bisection task. We show that being in pain leads to an expansion of subjective time whereby a stronger increase in pain perception relative to non-painful stimulation leads to a stronger time-estimate distortion...
November 16, 2017: Scientific Reports
https://www.readbyqxmd.com/read/29146894/odd-viscosity-in-chiral-active-fluids
#14
Debarghya Banerjee, Anton Souslov, Alexander G Abanov, Vincenzo Vitelli
We study the hydrodynamics of fluids composed of self-spinning objects such as chiral grains or colloidal particles subject to torques. These chiral active fluids break both parity and time-reversal symmetries in their non-equilibrium steady states. As a result, the constitutive relations of chiral active media display a dissipationless linear-response coefficient called odd (or equivalently, Hall) viscosity. This odd viscosity does not lead to energy dissipation, but gives rise to a flow perpendicular to applied pressure...
November 17, 2017: Nature Communications
https://www.readbyqxmd.com/read/29146681/a-qualitative-study-of-patient-involvement-in-medicines-management-after-hospital-discharge-an-under-recognised-source-of-systems-resilience
#15
Beth Fylan, Gerry Armitage, Deirdre Naylor, Alison Blenkinsopp
INTRODUCTION: There are risks to the safety of medicines management when patient care is transferred between healthcare organisations, for example, when a patient is discharged from hospital. Using the theoretical concept of resilience in healthcare, this study aimed to better understand the proactive role that patients can play in creating safer, resilient medicines management at a common transition of care. METHODS: Qualitative interviews with 60 cardiology patients 6 weeks after their discharge from 2 UK hospitals explored patients' experiences with their discharge medicines...
November 16, 2017: BMJ Quality & Safety
https://www.readbyqxmd.com/read/29146648/economic-evaluation-of-an-e-mental-health-intervention-for-patients-with-retinal-exudative-diseases-who-receive-intraocular-anti-vegf-injections-e-pseye-protocol-for-a-randomised-controlled-trial
#16
Hilde P A van der Aa, Ger H M B van Rens, Frank D Verbraak, Machteld Bosscha, Marc A Koopmanschap, Hannie C Comijs, Pim Cuijpers, Ruth M A van Nispen
INTRODUCTION: Because of the great potential of vascular endothelial growth factor inhibitors (anti-VEGF) for retinal exudative diseases, an increased number of patients receives this treatment. However, during this treatment, patients are subjected to frequent invasive intravitreal injections, and the effects on reversing the process of vision loss are uncertain, which may have negative consequences for patients' mental health. One in three patients experience at least mild symptoms of depression/anxiety...
November 15, 2017: BMJ Open
https://www.readbyqxmd.com/read/29146633/comparison-of-outcomes-of-antibiotic-drugs-and-appendectomy-coda-trial-a-protocol-for-the-pragmatic-randomised-study-of-appendicitis-treatment
#17
Giana H Davidson, David R Flum, David A Talan, Larry G Kessler, Danielle C Lavallee, Bonnie J Bizzell, Farhood Farjah, Skye D Stewart, Anusha Krishnadasan, Erin E Carney, Erika M Wolff, Bryan A Comstock, Sarah E Monsell, Patrick J Heagerty, Annie P Ehlers, Daniel A DeUgarte, Amy H Kaji, Heather L Evans, Julianna T Yu, Katherine A Mandell, Ian C Doten, Kevin S Clive, Karen M McGrane, Brandon C Tudor, Careen S Foster, Darin J Saltzman, Richard C Thirlby, Erin O Lange, Amber K Sabbatini, Gregory J Moran
INTRODUCTION: Several European studies suggest that some patients with appendicitis can be treated safely with antibiotics. A portion of patients eventually undergo appendectomy within a year, with 10%-15% failing to respond in the initial period and a similar additional proportion with suspected recurrent episodes requiring appendectomy. Nearly all patients with appendicitis in the USA are still treated with surgery. A rigorous comparative effectiveness trial in the USA that is sufficiently large and pragmatic to incorporate usual variations in care and measures the patient experience is needed to determine whether antibiotics are as good as appendectomy...
November 15, 2017: BMJ Open
https://www.readbyqxmd.com/read/29146313/comparison-between-the-visual-analog-scale-and-the-numerical-rating-scale-in-the-perception-of-esthetics-and-pain
#18
Sofia Rosas, Maria Paço, Carolina Lemos, Teresa Pinho
BACKGROUND: Pain is an unpleasant, emotional, and sensorial experience. Esthetics and pain express perceptions or sensations that are subjective and personal, but non-consensual, between professionals and patients. The Visual Analog Scale (VAS) and the Numerical Rating Scale (NRS) are simple methods to evaluate such subjective phenomena. OBJECTIVE: To verify whether a concordance exists between VAS and NS in the perception of esthetics and pain. MATERIAL AND METHODS: Regarding esthetics, an on-line questionnaire was prepared with extra- and intra-oral images (adapted)...
November 13, 2017: International Orthodontics
https://www.readbyqxmd.com/read/29146284/supervised-learning-techniques-and-their-ability-to-classify-a-change-of-direction-task-strategy-using-kinematic-and-kinetic-features
#19
Chris Richter, Enda King, Eanna Falvey, Andrew Franklyn-Miller
This study examines the ability of commonly used supervised learning techniques to classify the execution of a maximum effort change of direction task into predefined movement pattern as well as the influence of fuzzy executions and the impact of selected features (e.g. peak knee flexion) towards classification accuracy. The experiment utilized kinematic and kinetic data from 323 male subjects with chronic athletic groin pain. All subjects undertook a biomechanical assessment and had been divided previously into 3 different movement strategies in an earlier paper...
October 31, 2017: Journal of Biomechanics
https://www.readbyqxmd.com/read/29146283/a-computational-framework-for-estimating-statistical-power-and-planning-hypothesis-driven-experiments-involving-one-dimensional-biomechanical-continua
#20
Todd C Pataky, Mark A Robinson, Jos Vanrenterghem
Statistical power assessment is an important component of hypothesis-driven research but until relatively recently (mid-1990s) no methods were available for assessing power in experiments involving continuum data and in particular those involving one-dimensional (1D) time series. The purpose of this study was to describe how continuum-level power analyses can be used to plan hypothesis-driven biomechanics experiments involving 1D data. In particular, we demonstrate how theory- and pilot-driven 1D effect modeling can be used for sample-size calculations for both single- and multi-subject experiments...
October 7, 2017: Journal of Biomechanics
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