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https://www.readbyqxmd.com/read/27915404/is-there-any-influence-of-humeral-component-retroversion-on-range-of-motion-and-clinical-outcome-in-reverse-shoulder-arthroplasty-a-clinical-study
#1
F A de Boer, P M van Kampen, P E Huijsmans
PURPOSE: Reverse shoulder arthroplasty becomes more widely used as treatment for patients with complex cuff arthropathy. Theoretically, a higher retroversion of the humeral component leads to an increase in external rotation ROM and a decrease in internal rotation ROM. There is no consensus in optimal retroversion orientation. We retrospectively describe the effect of retroversion of the humeral component. We hypothesize that 20° humeral retroversion improves postoperative ROM, strength or clinical outcome scores compared to neutral retroversion...
December 3, 2016: Musculoskeletal Surgery
https://www.readbyqxmd.com/read/27915367/the-virtual-reality-head-mounted-display-oculus-rift-induces-motion-sickness-and-is-sexist-in-its-effects
#2
Justin Munafo, Meg Diedrick, Thomas A Stoffregen
Anecdotal reports suggest that motion sickness may occur among users of contemporary, consumer-oriented head-mounted display systems and that women may be at greater risk. We evaluated the nauseogenic properties of one such system, the Oculus Rift. The head-mounted unit included motion sensors that were sensitive to users' head movements, such that head movements could be used as control inputs to the device. In two experiments, seated participants played one of two virtual reality games for up to 15 min. In Experiment 1, 22% of participants reported motion sickness, and the difference in incidence between men and women was not significant...
December 3, 2016: Experimental Brain Research. Experimentelle Hirnforschung. Expérimentation Cérébrale
https://www.readbyqxmd.com/read/27915232/quantitative-profiling-of-selective-sox-pou-pairing-on-hundreds-of-sequences-in-parallel-by-coop-seq
#3
Yiming K Chang, Yogesh Srivastava, Caizhen Hu, Adam Joyce, Xiaoxiao Yang, Zheng Zuo, James J Havranek, Gary D Stormo, Ralf Jauch
Cooperative binding of transcription factors is known to be important in the regulation of gene expression programs conferring cellular identities. However, current methods to measure cooperativity parameters have been laborious and therefore limited to studying only a few sequence variants at a time. We developed Coop-seq (cooperativity by sequencing) that is capable of efficiently and accurately determining the cooperativity parameters for hundreds of different DNA sequences in a single experiment. We apply Coop-seq to 12 dimer pairs from the Sox and POU families of transcription factors using 324 unique sequences with changed half-site orientation, altered spacing and discrete randomization within the binding elements...
December 2, 2016: Nucleic Acids Research
https://www.readbyqxmd.com/read/27915155/vertically-oriented-structure-and-its-fracture-behavior-of-the-indonesia-white-pearl-oyster
#4
Guowei Chen, Hongyun Luo, Shunfei Luo, Zhenying Lin, Yue Ma
Structural calcites, aragonites, and the bonding organic network decide the growth, structure and mechanical properties of the mollusk bivalvia shell. Here, it was found out that the calcite prisms together with the coated organics construct another kind of 'brick and mortar' structure similar to the aragonite tablets. The calcite layer can be divided into three sublayers and direct evidences show that the calcite prisms are produced by two methods: nucleation and growing in the first sublayer; or fusing from the aragonites, which is quite different from some previous reports...
November 3, 2016: Journal of the Mechanical Behavior of Biomedical Materials
https://www.readbyqxmd.com/read/27915151/earth-strength-magnetic-field-affects-the-rheotactic-threshold-of-zebrafish-swimming-in-shoals
#5
Alessandro Cresci, Rosario De Rosa, Nathan F Putman, Claudio Agnisola
Rheotaxis, the unconditioned orienting response to water currents, is a main component of fish behaviour. Rheotaxis is achieved using multiple sensory systems, including visual and tactile cues. Rheotactic orientation in open or low-visibility waters might also benefit from the stable frame of reference provided by the geomagnetic field, but this possibility has not been explored before. Zebrafish (Danio rerio) form shoals living in freshwater systems with low visibility, show a robust positive rheotaxis, and respond to geomagnetic fields...
November 30, 2016: Comparative Biochemistry and Physiology. Part A, Molecular & Integrative Physiology
https://www.readbyqxmd.com/read/27915121/predicting-individual-brain-functional-connectivity-using-a-bayesian-hierarchical-model
#6
Tian Dai, Ying Guo
Network-oriented analysis of functional magnetic resonance imaging (fMRI), especially resting-state fMRI, has revealed important association between abnormal connectivity and brain disorders such as schizophrenia, major depression and Alzheimer's disease. Imaging-based brain connectivity measures have become a useful tool for investigating the pathophysiology, progression and treatment response of psychiatric disorders and neurodegenerative diseases. Recent studies have started to explore the possibility of using functional neuroimaging to help predict disease progression and guide treatment selection for individual patients...
November 30, 2016: NeuroImage
https://www.readbyqxmd.com/read/27915115/a-novel-measure-of-reliability-in-diffusion-tensor-imaging-after-data-rejections-due-to-subject-motion
#7
V Sairanen, L Kuusela, O Sipilä, S Savolainen, S Vanhatalo
Diffusion Tensor Imaging (DTI) is commonly challenged by subject motion during data acquisition, which often leads to corrupted image data. Currently used procedure in DTI analysis is to correct or completely reject such data before tensor estimations, however assessing the reliability and accuracy of the estimated tensor in such situations has evaded previous studies. This work aims to define the loss of data accuracy with increasing image rejections, and to define a robust method for assessing reliability of the result at voxel level...
November 30, 2016: NeuroImage
https://www.readbyqxmd.com/read/27915065/assessment-of-white-matter-transgression-during-neuroendoscopic-procedures-using-dti-fiber-tracking
#8
Sergio García, Jordina Rincon-Torroella, Arnau Benet, Laura Oleaga, José Juan González Sánchez
BACKGROUND: Presurgical planning allows anticipating intraoperative difficulties, increasing efficiency, and reducing risks. Neuroendoscopy is a minimally invasive technique whose related complications have been focused on cortical function and surface vessels injury. However, white matter disruption has been insufficiently acknowledged. OBJECTIVE: To present a new surgical planning method based on diffusion tensor image that allows quantifying subcortical transgression and optimizing neuroendoscopic trajectories...
November 30, 2016: World Neurosurgery
https://www.readbyqxmd.com/read/27915018/design-and-surface-immobilization-of-short-anti-biofilm-peptides
#9
Biswajit Mishra, Tamara Lushnikova, Radha M Golla, Xiuqing Wang, Guangshun Wang
: Short antimicrobial peptides are essential to keep us healthy and their lasting potency can inspire the design of new types of antibiotics. This study reports the design of a family of eight-residue tryptophan-rich peptides (TetraF2W) obtained by converting the four phenylalanines in temporin-SHf to tryptophans. The temporin-SHf template was identified from the antimicrobial peptide database (http://aps.unmc.edu/AP). Remarkably, the double arginine variant (TetraF2W-RR) was more effective in killing methicillin-resistant Staphylococcus aureus (MRSA) USA300, but less cytotoxic to human skin HaCat and kidney HEK293 cells, than the lysine-containing dibasic combinations (KR, RK and KK)...
November 30, 2016: Acta Biomaterialia
https://www.readbyqxmd.com/read/27914655/crohn-s-disease
#10
REVIEW
Joana Torres, Saurabh Mehandru, Jean-Frédéric Colombel, Laurent Peyrin-Biroulet
Crohn's disease is a chronic inflammatory disease of the gastrointestinal tract, with increasing incidence worldwide. Crohn's disease might result from a complex interplay between genetic susceptibility, environmental factors, and altered gut microbiota, leading to dysregulated innate and adaptive immune responses. The typical clinical scenario is a young patient presenting with abdominal pain, chronic diarrhoea, weight loss, and fatigue. Assessment of disease extent and of prognostic factors for complications is paramount to guide therapeutic decisions...
November 30, 2016: Lancet
https://www.readbyqxmd.com/read/27914404/high-frequency-imaging-and-elastic-effects-for-a-solid-cylinder-with-axis-oblique-relative-to-a-nearby-horizontal-surface
#11
Daniel S Plotnick, Philip L Marston
The calibrated acoustic backscattering spectrum versus aspect angle, also called the "acoustic color" or "acoustic template," of solid cylinders located near a flat interface was previously studied for the case where the cylinder axis was vertically oblique relative to the interface and was insonified by a beam at a non-zero grazing angle. The presence of the interface allows for multiple paths by which sound is backscattered. These multipaths are highly dependent on the relative orientations of the target, the interface, and the source/receiver...
September 2016: Journal of the Acoustical Society of America
https://www.readbyqxmd.com/read/27914402/stimulus-directed-attention-attenuates-lexically-guided-perceptual-learning
#12
Michael McAuliffe, Molly Babel
Studies on perceptual learning are motivated by phonetic variation that listeners encounter across speakers, items, and context. In this study, the authors investigate what control the listener has over the perceptual learning of ambiguous /s/ pronunciations through inducing changes in their attentional set. Listeners' attention is manipulated during a lexical decision exposure task such that their attention is directed at the word-level for comprehension-oriented listening or toward the signal for perception-oriented listening...
September 2016: Journal of the Acoustical Society of America
https://www.readbyqxmd.com/read/27914400/a-comparative-study-of-seven-human-cochlear-filter-models
#13
Amin Saremi, Rainer Beutelmann, Mathias Dietz, Go Ashida, Jutta Kretzberg, Sarah Verhulst
Auditory models have been developed for decades to simulate characteristics of the human auditory system, but it is often unknown how well auditory models compare to each other or perform in tasks they were not primarily designed for. This study systematically analyzes predictions of seven publicly-available cochlear filter models in response to a fixed set of stimuli to assess their capabilities of reproducing key aspects of human cochlear mechanics. The following features were assessed at frequencies of 0...
September 2016: Journal of the Acoustical Society of America
https://www.readbyqxmd.com/read/27914385/beamforming-pointing-error-of-a-triaxial-velocity-sensor-under-gain-uncertainties
#14
Tsair-Chuan Lin, Kainam Thomas Wong, Macario O Cordel, Joel Paz Ilao
A "triaxial velocity sensor" consists of three uniaxial velocity sensors, which are nominally identical, orthogonally oriented among themselves, and co-centered at one point in space. A triaxial velocity sensor measures the acoustic particle velocity vector, by its three Cartesian components, individually component-by-component, thereby offering azimuth-elevation two-dimensional spatial directivity, despite the physical compactness that comes with the collocation of its three components. This sensing system's azimuth-elevation beam-pattern has been much analyzed in the open literature, but only for an idealized case of the three uniaxial velocity sensors being exactly identical in gain...
September 2016: Journal of the Acoustical Society of America
https://www.readbyqxmd.com/read/27914376/mode-converted-ultrasonic-scattering-in-polycrystals-with-elongated-grains
#15
Andrea P Arguelles, Christopher M Kube, Ping Hu, Joseph A Turner
Elastic wave scattering is used to study polycrystalline media for a wide range of applications. Received signals, which include scattering from the randomly oriented grains comprising the polycrystal, contain information from which useful microstructural parameters may often be inferred. Recently, a mode-converted diffuse ultrasonic scattering model was developed for evaluating the scattered response of a transverse wave from an incident longitudinal wave in a polycrystalline medium containing equiaxed single-phase grains with cubic elastic symmetry...
September 2016: Journal of the Acoustical Society of America
https://www.readbyqxmd.com/read/27914090/measuring-antibody-orientation-at-the-bacterial-surface
#16
Oonagh Shannon, Pontus Nordenfelt
Many bacteria have the ability to interact with antibodies as a means to circumvent the immune response. This includes binding to the Fc portion of antibodies, effectively reversing the antibody orientation and thus decreasing the Fc-mediated immune signaling. Since antibody orientation at the bacterial surface has been shown to be important in human disease, it is valuable to be able to assess how antibodies are interacting with bacterial pathogens. Here, we describe a method to measure the proportion of human IgG that are bound via their Fc or Fabs to a bacterial surface...
2017: Methods in Molecular Biology
https://www.readbyqxmd.com/read/27913977/divine-emotions-on-the-link-between-emotional-intelligence-and-religious-belief
#17
Paweł Łowicki, Marcin Zajenkowski
There have been only few attempts to explore the relationship between emotional intelligence (EI) and religiosity. However, none of them included measures of ability EI. In two studies, we investigated the potential associations between various aspects of religious belief and ability and trait EI. In Study 1 (N = 240), we found that ability EI was positively associated with general level of religious belief. Study 2, conducted among Polish Christians (N = 159), replicated the previous result on the connection between ability EI and religion...
December 2, 2016: Journal of Religion and Health
https://www.readbyqxmd.com/read/27913691/exploring-the-chronic-illness-experience-of-rural-dwelling-latinos-of-mexican-origin
#18
Anissa Guzman
INTRODUCTION: Chronic illness is a complex and ever-growing phenomenon that is affecting millions of Americans every day, and it is disproportionately experienced by Latinos of Mexican origin. METHOD: In this quantitative study, the specific aims were to evaluate perceptions of chronic illness(es), locus of control (health and God), health status, and cultural orientation of rural-dwelling Latinos of Mexican origin in Colorado who have one or more chronic illnesses and to explore the relationships existing between these concepts...
December 2016: Hispanic Health Care International: the Official Journal of the National Association of Hispanic Nurses
https://www.readbyqxmd.com/read/27913689/how-is-low-parental-socioeconomic-status-associated-with-future-smoking-and-nicotine-dependence-in-offspring-a-population-based-longitudinal-13-year-follow-up
#19
Willy Pedersen, Tilmann Von Soest
AIMS: Low socioeconomic status (SES) characterizes smoking and nicotine dependence in adult samples. However, less is known about how parental SES is linked to smoking in offspring and the potential mechanisms at work. METHODS: A population-based longitudinal study (n=1380) from Norway was used. Participants were followed from their mid-teens until their late 20s using survey and register data. Data were collected on parental education, parental smoking, educational aspirations and expectations, school grades and school-related conduct problems...
December 1, 2016: Scandinavian Journal of Public Health
https://www.readbyqxmd.com/read/27913591/temporal-expectations-guide-dynamic-prioritization-in-visual-working-memory-through-attenuated-alpha-oscillations
#20
Freek van Ede, Marcel Niklaus, Anna C Nobre
: While working memory is generally considered a highly dynamic mnemonic store, popular laboratory tasks employed to understand its psychological and neural mechanisms (such as change detection and continuous reproduction) often remain relatively "static", involving the retention of a set number of items throughout a shared delay interval. In the current study, we investigated visual working memory in a more dynamic setting, and assessed: 1) whether internally guided temporal expectations can dynamically and reversibly prioritize individual mnemonic items at specific times at which they are deemed most relevant and 2) the neural substrates that support such dynamic prioritization...
December 2, 2016: Journal of Neuroscience: the Official Journal of the Society for Neuroscience
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