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https://www.readbyqxmd.com/read/28538993/fefsem-neuronal-response-during-combined-volitional-and-reflexive-pursuit
#1
Leah Bakst, Jérome Fleuriet, Michael J Mustari
Although much is known about volitional and reflexive smooth eye movements individually, much less is known about how they are coordinated. It is hypothesized that separate cortico-ponto-cerebellar loops subserve these different types of smooth eye movements. Specifically, the MT-MST-DLPN pathway is thought to be critical for ocular following eye movements, whereas the FEF-NRTP pathway is understood to be vital for volitional smooth pursuit. However, the role that these loops play in combined volitional and reflexive behavior is unknown...
May 1, 2017: Journal of Vision
https://www.readbyqxmd.com/read/28537784/the-dangerousness-of-mountain-recreation-a-quantitative-overview-of-fatal-and-non-fatal-accidents-in-france
#2
Bastien Soulé, Brice Lefèvre, Eric Boutroy
In France, there is a growing enthusiasm for outdoor sports and recreation. In the meantime, the risk of both severe and frequent injury associated with active pursuits in mountain areas is acknowledged. This paper tackles accidents related to mountain sports, with a focus on three critical activities: hiking, mountaineering and ski touring. The aim consists of estimating the actual number of accidents (whether they entailed deaths or injuries) in the three above-mentioned activities. In order to align the information collected, then provide estimations based on the reasoned crossing of these secondary data, we consulted and summarised all the databases available on the French territory...
May 24, 2017: European Journal of Sport Science
https://www.readbyqxmd.com/read/28535445/correlates-of-muscle-dysmorphia-symptomatology-in-natural-bodybuilders-distinguishing-factors-in-the-pursuit-of-hyper-muscularity
#3
Lachlan Mitchell, Stuart B Murray, Matthew Hoon, Daniel Hackett, Tania Prvan, Helen O'Connor
Muscle dysmorphia (MD) is characterized by the pathological pursuit of muscularity and leanness, which includes eating- and exercise-related practices. The aim of this cross-sectional study was to identify correlations of MD symptomatology in natural bodybuilders. An online survey assessing diet, supplementation and training practices, and MD and eating disorder symptoms was completed by male bodybuilders with recent experience competing in a drug-tested competition. Sixty participants (age 29.6±7.1 years) completed the survey...
May 20, 2017: Body Image
https://www.readbyqxmd.com/read/28534673/effects-of-preference-and-sensory-modality-on-behavioral-reaction-in-patients-with-disorders-of-consciousness
#4
L Heine, B Tillmann, M Hauet, A Juliat, A Dubois, S Laureys, M Kandel, J Plailly, J Luauté, F Perrin
BACKGROUND: Reliable evaluation of patients with unresponsive wakefulness syndrome (UWS) or in a minimally conscious state (MCS) remains a major challenge. It has been suggested that the expression of residual cerebral function could be improved by allowing patients to listen to their favourite music. However, the potential effect of music on behavioural responsiveness, as well as the effect of preferred stimuli in other sensory modalities (e.g. olfaction), remain poorly understood. OBJECTIVE: The aim of our study was to investigate the effect of sensory modality (auditory versus olfactory) and preference (preferred versus neutral) of the test stimuli on patients' subsequent performance on the Coma Recovery Scale-Revised (CRS-R)...
May 23, 2017: Brain Injury: [BI]
https://www.readbyqxmd.com/read/28534508/utx-promotes-hormonally-responsive-breast-carcinogenesis-through-feed-forward-transcription-regulation-with-estrogen-receptor
#5
G Xie, X Liu, Y Zhang, W Li, S Liu, Z Chen, B Xu, J Yang, L He, Z Zhang, T Jin, X Yi, L Sun, Y Shang, J Liang
UTX is implicated in embryonic development and lineage specification. However, how this X-linked histone demethylase contributes to the occurrence and progression of breast cancer remains to be clarified. Here we report that UTX is physically associated with estrogen receptor (ER) and functions in ER-regulated transcription. We showed that UTX coordinates with JHDM1D and CBP to direct H3K27 methylation-acetylation transition and to create a permissive chromatin state on ER targets. Genome-wide analysis of the transcriptional targets of UTX by ChIP-seq identified a set of genes such as chemokine receptor CXCR4 that are intimately involved in breast cancer tumorigenesis and metastasis...
May 22, 2017: Oncogene
https://www.readbyqxmd.com/read/28533677/in-pursuit-of-belonging-acculturation-perceived-discrimination-and-ethnic-racial-identity-among-latino-youths
#6
Adrienne Juliet Michele Baldwin-White, Elizabeth Kiehne, Adriana Umaña-Taylor, Flavio F Marsiglia
Guided by Bronfenbrenner's ecological systems framework and informed by the rejection-identification model, this study examined the relationship between acculturation, discrimination, and ethnic-racial identity (ERI) searching and affirmation among a sample of Latino youths (N = 830; mean age = 12.2 years). Results revealed that higher levels of acculturation were associated with lower levels of searching and affirmation. Furthermore, higher perceived discrimination was associated with higher affirmation, but unrelated to searching...
March 2017: Social Work Research
https://www.readbyqxmd.com/read/28530684/tackling-hiv-and-aids-contributions-by-non-human-primate-models
#7
Koen K A Van Rompay
During the past three decades, non-human primate (NHP) models have gained an increasing importance in HIV basic and translational research. In contrast to natural host models, infection of macaques with virulent simian or simian-human immunodeficiency viruses (SIV, SHIV) results in a disease that closely resembles HIV infection and AIDS. Although there is no perfect animal model, and each of the available models has its benefits and limitations, carefully designed NHP studies with selection of experimental variables have unraveled important questions of basic pathogenesis and have provided the tools to explore and screen intervention strategies...
May 22, 2017: Lab Animal
https://www.readbyqxmd.com/read/28530446/the-temptation-of-forbidden-fruit-and-the-pursuits-of-a-holy-grail
#8
Arthur I Eidelman
No abstract text is available yet for this article.
May 22, 2017: Breastfeeding Medicine: the Official Journal of the Academy of Breastfeeding Medicine
https://www.readbyqxmd.com/read/28525504/reassessing-recess-in-pursuit-of-the-golden-ratio-of-hemostatic-components-to-red-blood-cells
#9
Michael A Mazzeffi, David Faraoni, Kenichi A Tanaka
No abstract text is available yet for this article.
June 2017: Anesthesia and Analgesia
https://www.readbyqxmd.com/read/28524765/what-can-critical-suicidology-do
#10
Jennifer White
Critical suicidology is an emerging area of scholarship and praxis that brings together academics, community activists, service users, practitioners, policy makers, family members and persons with lived experience, to rethink what it means to study suicide and enact practices of suicide prevention in more diverse and creative, less psycho-centric and less depoliticized, ways. In this paper I begin to articulate what it might mean to "think like a critical suicidologist," the questions that might get asked from this position, the academic and activist allies who might get recruited to the cause, and the potential cracks we might open up in pursuit of a more hopeful, life-affirming, and just future...
May 19, 2017: Death Studies
https://www.readbyqxmd.com/read/28521905/harnessing-the-properties-of-dendritic-cells-in-the-pursuit-of-immunological-tolerance
#11
REVIEW
Christopher Horton, Kumaran Shanmugarajah, Paul J Fairchild
The acquisition of self-perpetuating, immunological tolerance specific for graft alloantigens has long been described as the "holy grail" of clinical transplantation. By removing the need for life-long immunosuppression following engraftment, the adverse consequences of immunosuppressive regimens, including chronic infections and malignancy, may be avoided. Furthermore, autoimmune diseases and allergy are, by definition, driven by aberrant immunological responses to ordinarily innocuous antigens. The re-establishment of permanent tolerance towards instigating antigens may, therefore, provide a cure to these common diseases...
April 2017: Biomedical Journal
https://www.readbyqxmd.com/read/28517983/personalised-medicine-and-the-economy-of-biotechnological-promise
#12
Steve Sturdy
Rather than seek to distinguish hype from legitimate promise, it may be more helpful to think about personalised medicine as embodying a promissory economy which serves both to mobilize resources for research and - partly at least - to determine the ends to which that research is directed. Personalised medicine is a development of the larger promissory economy of medical biotechnology. As such, it systematically conflates public benefit with the pursuit of commercial and especially pharmaceutical interests...
April 2017: New Bioethics: a Multidisciplinary Journal of Biotechnology and the Body
https://www.readbyqxmd.com/read/28516174/when-personal-tracking-becomes-social-examining-the-use-of-instagram-for-healthy-eating
#13
Chia-Fang Chung, Elena Agapie, Jessica Schroeder, Sonali Mishra, James Fogarty, Sean A Munson
Many people appropriate social media and online communities in their pursuit of personal health goals, such as healthy eating or increased physical activity. However, people struggle with impression management, and with reaching the right audiences when they share health information on these platforms. Instagram, a popular photo-based social media platform, has attracted many people who post and share their food photos. We aim to inform the design of tools to support healthy behaviors by understanding how people appropriate Instagram to track and share food data, the benefits they obtain from doing so, and the challenges they encounter...
May 2, 2017: Proceedings of the SIGCHI Conference on Human Factors in Computing Systems
https://www.readbyqxmd.com/read/28515458/floccular-fossa-size-is-not-a-reliable-proxy-of-ecology-and-behaviour-in-vertebrates
#14
S Ferreira-Cardoso, R Araújo, N E Martins, G G Martins, S Walsh, R M S Martins, N Kardjilov, I Manke, A Hilger, R Castanhinha
The cerebellar floccular and parafloccular lobes are housed in fossae of the periotic region of the skull of different vertebrates. Experimental evidence indicates that the lobes integrate visual and vestibular information and control the vestibulo-ocular reflex, vestibulo-collic reflex, smooth pursuit and gaze holding. Multiple paleoneuroanatomy studies have deduced the behaviour of fossil vertebrates by measuring the floccular fossae (FF). These studies assumed that there are correlations between FF volume and behaviour...
May 17, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28515287/context-effects-on-smooth-pursuit-and-manual-interception-of-a-disappearing-target
#15
Philipp Kreyenmeier, Jolande Fooken, Miriam Spering
In our natural environment, we interact with moving objects that are surrounded by richly textured, dynamic visual contexts. Yet, most laboratory studies on vision and movement show visual objects in front of uniform grey backgrounds. Context effects on eye movements have been widely studied, but it is less well known how visual contexts affect hand movements. Here we ask whether eye and hand movements integrate motion signals from target and context similarly or differently, and whether context effects on eye and hand change over time...
May 17, 2017: Journal of Neurophysiology
https://www.readbyqxmd.com/read/28515286/responses-of-purkinje-cells-in-the-oculomotor-vermis-of-monkeys-during-smooth-pursuit-eye-movements-and-saccades-comparison-with-floccular-complex
#16
Ramanujan T Raghavan, Stephen G Lisberger
We recorded the responses of Purkinje cells in the oculomotor vermis during smooth pursuit and saccadic eye movements. Our goal was to characterize the responses in the vermis using approaches that would allow direct comparisons with responses of Purkinje cells in another cerebellar area for pursuit, the floccular complex. Simple-spike firing of vermis Purkinje cells is direction selective during both pursuit and saccades, but the preferred directions are sufficiently independent so that downstream circuits could decode signals to drive pursuit and saccades separately...
May 17, 2017: Journal of Neurophysiology
https://www.readbyqxmd.com/read/28514927/la-vida-normal-living-with-hiv-in-santo-domingo-dominican-republic
#17
Clare Barrington, Deanna Kerrigan, Francisco I Cáceres Ureña, Karen Brudney
In this study, we explore how individuals living with HIV in the Dominican Republic strive to live a 'normal' life and the consequences of this pursuit of normalcy. We conducted qualitative in-depth interviews with men (n = 20) and women (n = 20) living with HIV and receiving care at two urban clinics in Santo Domingo. We analysed the data using a combination of narrative analysis and thematic coding. We aimed to identify how fears and/or lived experiences with social rejection and HIV-related stigma and discrimination shaped participants' abilities to maintain social relationships, be economically productive and manage HIV within the context of sexual relationships...
May 18, 2017: Culture, Health & Sexuality
https://www.readbyqxmd.com/read/28514632/a-waterborne-pursuit-deterrent-signal-deployed-by-a-sea-urchin
#18
Hannah Sheppard-Brennand, Alistair G B Poore, Symon A Dworjanyn
Selection by consumers has led to the evolution of a vast array of defenses in animals and plants. These defenses include physical structures, behaviors, and chemical signals that mediate interactions with predators. Some of the strangest defensive structures in nature are the globiferous pedicellariae of the echinoderms. These are small venomous appendages with jaws and teeth that cover the test of many sea urchins and sea stars. In this study, we report a unique use of these defensive structures by the collector sea urchin Tripneustes gratilla...
June 2017: American Naturalist
https://www.readbyqxmd.com/read/28514631/the-hawk-eyed-songbird-retinal-morphology-eye-shape-and-visual-fields-of-an-aerial-insectivore
#19
Luke P Tyrrell, Esteban Fernández-Juricic
Swallows are a unique group of songbirds because they are active-pursuit predators that execute all aspects of hunting prey in flight: search, detection, pursuit, and capture. We show that swallows have evolved a visual system that is unlike that of any other studied songbird. Swallows have a bifoveate retina that provides sharp lateral and frontal vision, an unusually long eye that enhances spatial resolution, a large posterior blind area, and a narrow binocular field. We also show that swallows and diurnal raptors (hawks and falcons) have converged on a similar visual configuration but that, interestingly, predatory songbirds that ambush prey (flycatchers) have not converged on the same suite of traits...
June 2017: American Naturalist
https://www.readbyqxmd.com/read/28514475/cotreatment-as-a-vehicle-for-interprofessional-collaborative-practice-physical-therapists-and-speech-language-pathologists-collaborating-in-the-care-of-children-with-severe-disabilities
#20
Lorraine Sylvester, Billy T Ogletree, Karen Lunnen
Purpose: This article defines interprofessional collaborative practice and links its key features with accepted practice conceptualizations of physical therapy. Cotreatment with speech-language pathology is described as a vehicle for interprofessional collaborative practice for children with severe disabilities. Method: The article reviews the International Classification of Functioning, Disability, and Health (WHO, 2015) and the Hypothesis-Oriented Algorithm for Clinicians II (Rothstein, Echternach, & Riddle, 2003) as existing service-delivery frameworks in physical therapy and discusses how interprofessional collaborative practice between speech-language pathologists and physical therapists can be useful within these practice guidelines...
May 17, 2017: American Journal of Speech-language Pathology
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