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https://www.readbyqxmd.com/read/29792882/utilization-of-automated-performance-metrics-to-measure-surgeon-performance-during-robotic-vesicourethral-anastomosis-and-methodical-development-of-a-training-tutorial
#1
Jian Chen, Paul J Oh, Nathan Cheng, Ankeet Shah, Jeremy Montez, Anthony Jarc, Liheng Guo, Inderbir S Gill, Andrew J Hung
PURPOSE: To develop and validate automated performance metrics (APMs) to measure surgeon performance of vesicourethral anastomosis (VUA) during robotic-assisted radical prostatectomy (RRP). Furthermore, we seek to methodically develop a standardized training tutorial for the robotic VUA. MATERIALS AND METHODS: APMs (motion tracking and system events data) and synchronized surgical video were captured during the RRP. Non-automated performance metrics (NAPMs) were manually annotated by video review...
May 21, 2018: Journal of Urology
https://www.readbyqxmd.com/read/29791564/morphology-and-morphometry-of-upland-lakes-over-lateritic-crust-serra-dos-caraj%C3%A3-s-southeastern-amazon-region
#2
Marcio S DA Silva, José T F Guimarães, Pedro W M Souza Filho, Wilson Nascimento Júnior, Prafulla K Sahoo, Francisco R DA Costa, Renato O Silva Júnior, Tarcísio M Rodrigues, Marlene F DA Costa
High-resolution satellite images, digital elevation models, bathymetric and sedimentological surveys coupled with statistical analysis were used to understand the physical environment and discuss their influence on water quality of the five upland lakes of Serra Sul dos Carajás, southeast Amazonia. The lakes have mid-altitude ranges (elevation), very small (catchment) and shallow to very shallow (central basins). Based on the length, area and volume, Violão and TI (Três Irmãs)-3 lakes may present large vertical movements of the water due to wind action and weakly stratified waters...
May 17, 2018: Anais da Academia Brasileira de Ciências
https://www.readbyqxmd.com/read/29790215/attenuated-nitric-oxide-bioavailability-in-systemic-sclerosis-evidence-from-the-novel-assessment-of-passive-leg-movement
#3
Heather L Clifton, Daniel R Machin, H Jonathan Groot, Tracy M Frech, Anthony J Donato, Russell S Richardson, D Walter Wray
NEW FINDINGS: What is the central question of this study? Do systemic sclerosis (SSc) patients exhibit impaired nitric oxide (NO)-mediated vascular function of the lower limb, and are these decrements correlated with plasma biomarkers for inflammation and oxidative stress? What is the main finding and its importance? Findings indicate impaired NO-mediated vascular function, linked to the incidence of digital ulcers, and a milieu of inflammation and oxidative stress. However, the absence of significant correlations between individual biomarkers and blood flow responses suggests the vasculopathy observed in SSc may not be solely the result of derangements in the redox balance or inflammatory signaling...
May 23, 2018: Experimental Physiology
https://www.readbyqxmd.com/read/29789604/plasma-membrane-lat-activation-precedes-vesicular-recruitment-defining-two-phases-of-early-t-cell-activation
#4
Lakshmi Balagopalan, Jason Yi, Tiffany Nguyen, Katherine M McIntire, Adam S Harned, Kedar Narayan, Lawrence E Samelson
The relative importance of plasma membrane-localized LAT versus vesicular LAT for microcluster formation and T-cell receptor (TCR) activation is unclear. Here, we show the sequence of events in LAT microcluster formation and vesicle delivery, using lattice light sheet microscopy to image a T cell from the earliest point of activation. A kinetic lag occurs between LAT microcluster formation and vesicular pool recruitment to the synapse. Correlative 3D light and electron microscopy show an absence of vesicles at microclusters at early times, but an abundance of vesicles as activation proceeds...
May 22, 2018: Nature Communications
https://www.readbyqxmd.com/read/29789404/new-approaches-for-assessing-squid-fin-motions-coupling-proper-orthogonal-decomposition-with-volumetric-particle-tracking-velocimetry
#5
Ian K Bartol, Paul S Krueger, Carly A York, Joseph T Thompson
Squids, which swim using a coupled fin/jet system powered by muscular hydrostats, pose unique challenges for the study of locomotion. The high flexibility of the fins and complex flow fields generated by distinct propulsion systems require innovative techniques for locomotive assessment. For this study, we used proper orthogonal decomposition (POD) to decouple components of the fin motions and defocusing digital particle tracking velocimetry (DDPTV) to quantify the resultant 3D flow fields. Kinematic footage and DDPTV data were collected from brief squid Lolliguncula brevis [3...
May 22, 2018: Journal of Experimental Biology
https://www.readbyqxmd.com/read/29788473/enhancing-psychosis-spectrum-nosology-through-an-international-data-sharing-initiative
#6
Anna R Docherty, Eduardo Fonseca-Pedrero, Martin Debbané, Raymond C K Chan, Richard J Linscott, Katherine G Jonas, David C Cicero, Melissa J Green, Leonard J Simms, Oliver Mason, David Watson, Ulrich Ettinger, Monika Waszczuk, Alexander Rapp, Phillip Grant, Roman Kotov, Colin G DeYoung, Camilo J Ruggero, Nicolas R Eaton, Robert F Krueger, Christopher Patrick, Christopher Hopwood, F Anthony O'Neill, David H Zald, Christopher C Conway, Daniel E Adkins, Irwin D Waldman, Jim van Os, Patrick F Sullivan, John S Anderson, Andrey A Shabalin, Scott R Sponheim, Stephan F Taylor, Rachel G Grazioplene, Silviu A Bacanu, Tim B Bigdeli, Corinna Haenschel, Dolores Malaspina, Diane C Gooding, Kristin Nicodemus, Frauke Schultze-Lutter, Neus Barrantes-Vidal, Christine Mohr, William T Carpenter, Alex S Cohen
The latent structure of schizotypy and psychosis-spectrum symptoms remains poorly understood. Furthermore, molecular genetic substrates are poorly defined, largely due to the substantial resources required to collect rich phenotypic data across diverse populations. Sample sizes of phenotypic studies are often insufficient for advanced structural equation modeling approaches. In the last 50 years, efforts in both psychiatry and psychological science have moved toward (1) a dimensional model of psychopathology (eg, the current Hierarchical Taxonomy of Psychopathology [HiTOP] initiative), (2) an integration of methods and measures across traits and units of analysis (eg, the RDoC initiative), and (3) powerful, impactful study designs maximizing sample size to detect subtle genomic variation relating to complex traits (the Psychiatric Genomics Consortium [PGC])...
May 16, 2018: Schizophrenia Bulletin
https://www.readbyqxmd.com/read/29787484/post-therapy-functional-magnetic-resonance-imaging-in-adults-with-symptomatic-convergence-insufficiency
#7
Douglas E Widmer, Tamara S Oechslin, Chirag Limbachia, Marjean Taylor Kulp, Andrew J Toole, Nasser H Kashou, Nicklaus Fogt
SIGNIFICANCE: Prior studies have demonstrated the effectiveness of vergence-accommodative therapy in the treatment of convergence insufficiency (CI). These results show the changes in brain activation following therapy through the use of functional magnetic resonance imaging (fMRI). PURPOSE: The purpose of this study was to investigate changes in brain activation following office-based vergence-accommodative therapy versus placebo therapy for CI using the blood oxygenation level-dependent signal from fMRI...
May 21, 2018: Optometry and Vision Science: Official Publication of the American Academy of Optometry
https://www.readbyqxmd.com/read/29786622/quantitative-analysis-of-proximal-and-distal-kinetic-chain-musculature-during-dynamic-exercises
#8
Gretchen D Oliver, Jessica K Washington, Jeff W Barfield, Sarah S Gascon, Gabrielle Gilmer
Oliver, GD, Washington, JK, Barfield, JW, Gascon, SS, and Gilmer, G. Quantitative analysis of proximal and distal kinetic chain musculature during dynamic exercises. J Strength Cond Res 32(6): 1545-1553, 2018-Proximal to distal sequencing for the dynamic movement of throwing is dependent on the movement and stability of the lumbopelvic-hip complex (LPHC) and scapula. Although the need for proximal stability for distal mobility has been vastly documented, pre-throwing programs tend to focus on the traditional rotator cuff activation exercises before long toss...
June 2018: Journal of Strength and Conditioning Research
https://www.readbyqxmd.com/read/29782523/spatial-abundance-models-and-seasonal-distribution-for-guanaco-lama-guanicoe-in-central-tierra-del-fuego-argentina
#9
Celina E Flores, Guillermo Deferrari, Leonardo Collado, Julio Escobar, Adrián Schiavini
Spatially explicit modelling allows to estimate population abundance and predict species' distribution in relation to environmental factors. Abiotic factors are the main determinants of a herbivore´s response to environmental heterogeneity on large spatiotemporal scales. We assessed the influence of elevation, geographic location and distance to the coast on the seasonal abundance and distribution of guanaco (Lama guanicoe) in central Tierra del Fuego, by means of spatially explicit modelling. The estimated abundance was 23,690 individuals for the non-breeding season and 33,928 individuals for the breeding season...
2018: PloS One
https://www.readbyqxmd.com/read/29782498/endoplasmic-reticulum-plasma-membrane-contact-sites-integrate-sterol-and-phospholipid-regulation
#10
Evan Quon, Yves Y Sere, Neha Chauhan, Jesper Johansen, David P Sullivan, Jeremy S Dittman, William J Rice, Robin B Chan, Gilbert di Paolo, Christopher T Beh, Anant K Menon
Tether proteins attach the endoplasmic reticulum (ER) to other cellular membranes, thereby creating contact sites that are proposed to form platforms for regulating lipid homeostasis and facilitating non-vesicular lipid exchange. Sterols are synthesized in the ER and transported by non-vesicular mechanisms to the plasma membrane (PM), where they represent almost half of all PM lipids and contribute critically to the barrier function of the PM. To determine whether contact sites are important for both sterol exchange between the ER and PM and intermembrane regulation of lipid metabolism, we generated Δ-super-tether (Δ-s-tether) yeast cells that lack six previously identified tethering proteins (yeast extended synatotagmin [E-Syt], vesicle-associated membrane protein [VAMP]-associated protein [VAP], and TMEM16-anoctamin homologues) as well as the presumptive tether Ice2...
May 21, 2018: PLoS Biology
https://www.readbyqxmd.com/read/29781960/a-peripherally-restricted-cannabinoid-1-receptor-agonist-as-a-novel-analgesic-in-cancer-induced-bone-pain
#11
Hong Zhang, Dominique M Lund, Haley A Ciccone, William D Staatz, Mohab M Ibrahim, Tally M Largent-Milnes, Herbert H Seltzman, Igor Spigelman, Todd W Vanderah
Many malignant cancers, including breast cancer, have a propensity to invade bones, leading to excruciating bone pain. Opioids are the primary analgesics used to alleviate this cancer-induced bone pain (CIBP) but are associated with numerous severe side effects, including enhanced bone degradation, which significantly impairs patients' quality of life. In contrast, agonists activating only peripheral CB1 receptors (CB1Rs) have been shown to effectively alleviate multiple chronic pain conditions with limited side effects, yet no studies have evaluated their role(s) in CIBP...
May 16, 2018: Pain
https://www.readbyqxmd.com/read/29781774/a-perfect-storm-challenges-encountered-by-family-caregivers-of-persons-with-alzheimer-s-disease-during-natural-disasters
#12
Allison Gibson, Jessica Walsh, Lisa M Brown
Since Hurricane Katrina there has been a movement across the U.S. to examine best practice for disaster response within the aging population. However, little is known about the experience of natural disasters from the perspective of family caregivers of persons with Alzheimer's disease and related dementia (ADRD). In this exploratory, qualitative study, family caregivers (n=27) were interviewed about their experience with the historic 2015 South Carolina flood. By using thematic analysis, themes were identified to better understand what unique challenges caregivers of person with ADRD experienced...
May 21, 2018: Journal of Gerontological Social Work
https://www.readbyqxmd.com/read/29781673/rabies-of-canid-biotype-in-wild-dog-lycaon-pictus-and-spotted-hyaena-crocuta-crocuta-in-madikwe-game-reserve-south-africa-in-2014-2015-diagnosis-possible-origins-and-implications-for-control
#13
Claude T Sabeta, Drienie Janse van Rensburg, Baby Phahladira, Debra Mohale, Robert F Harrison-White, Carlien Esterhuyzen, June H Williams
Both domestic and wild carnivore species are commonly diagnosed with rabies virus (RABV) infection in South Africa. Although the majority of confirmed rabies cases in wild carnivore species are reported from the yellow mongoose (Cynictis penicillata), the rest are from other wild carnivores including the highly endangered wild dog (Lycaon pictus). Lyssavirus infection was confirmed in two wild dogs and a spotted hyaena (Crocuta crocuta) in the Madikwe Game Reserve, North West province in South Africa, in 2014 and 2015, using a direct fluorescent antibody test and immunohistochemistry...
April 26, 2018: Journal of the South African Veterinary Association
https://www.readbyqxmd.com/read/29781651/exposure-and-cbt-for-chronic-back-pain-an-rct-on-differential-efficacy-and-optimal-length-of-treatment
#14
Julia Anna Glombiewski, Sebastian Holzapfel, Jenny Riecke, Johan W S Vlaeyen, Jeroen de Jong, Gunnar Lemmer, Winfried Rief
OBJECTIVE: Our aim was to establish whether Exposure, a specialized tailored treatment for chronic low back pain, has any advantages over cognitive-behavioral therapy (CBT) among individuals with high fear-avoidance levels. Second, we planned to compare short and long versions of Exposure. Third, we aimed to investigate whether Exposure can be delivered in an outpatient psychological setting. METHOD: A total of 88 Caucasian participants (55% women) were randomized to three different psychological treatment conditions, Exposure-long, Exposure-short, and CBT...
June 2018: Journal of Consulting and Clinical Psychology
https://www.readbyqxmd.com/read/29781570/effect-of-motor-based-speech-intervention-on-articulatory-placement-in-the-treatment-of-a-posterior-nasal-fricative-a-preliminary-mri-study-on-a-single-subject
#15
Kazlin N Mason, Eshan Pua, Jamie L Perry
BACKGROUND: Posterior nasal fricatives are a learned compensatory articulation error and commonly substituted for oral fricatives. Treatment of such articulation errors requires the modification or teaching of skilled movements. A motor-based approach is designed to teach the complex motor skill movement sequences required in the production of sounds. Although motor learning research is well established, little has been done to determine how the approach changes the underlying physiology of articulatory movements...
May 21, 2018: International Journal of Language & Communication Disorders
https://www.readbyqxmd.com/read/29780880/circadian-and-brain-state-modulation-of-network-hyperexcitability-in-alzheimer-s-disease
#16
Rosalind Brown, Alice D Lam, Alfredo Gonzalez-Sulser, Andrew Ying, Mary Jones, Robert Chang-Chih Chou, Makis Tzioras, Crispin Y Jordan, Izabela Jedrasiak-Cape, Anne-Laure Hemonnot, Maurice Abou Jaoude, Andrew J Cole, Sydney S Cash, Takashi Saito, Takaomi Saido, Richard R Ribchester, Kevan Hashemi, Iris Oren
Network hyperexcitability is a feature of Alzheimer' disease (AD) as well as numerous transgenic mouse models of AD. While hyperexcitability in AD patients and AD animal models share certain features, the mechanistic overlap remains to be established. We aimed to identify features of network hyperexcitability in AD models that can be related to epileptiform activity signatures in AD patients. We studied network hyperexcitability in mice expressing amyloid precursor protein (APP) with mutations that cause familial AD, and compared a transgenic model that overexpresses human APP (hAPP) (J20), to a knock-in model expressing APP at physiological levels (APPNL/F )...
March 2018: ENeuro
https://www.readbyqxmd.com/read/29779740/the-influence-of-sensorimotor-experience-on-the-aesthetic-evaluation-of-dance-across-the-life-span
#17
Louise P Kirsch, Emily S Cross
Understanding how action perception, embodiment, and emotion interact is essential for advancing knowledge about how we perceive and interact with each other in a social world. One tool that has proved particularly useful in the past decade for exploring the relationship between perception, action, and affect is dance. Dance is, in its essence, a rich and multisensory art form that can be used to help answer not only basic questions about social cognition but also questions concerning how aging shapes the relationship between action perception, and the role played by affect, emotion, and aesthetics in social perception...
2018: Progress in Brain Research
https://www.readbyqxmd.com/read/29779737/neurodevelopmental-perspectives-on-dance-learning-insights-from-early-adolescence-and-young-adulthood
#18
Dilini K Sumanapala, Jon Walbrin, Louise P Kirsch, Emily S Cross
Studies investigating human motor learning and movement perception have shown that similar sensorimotor brain regions are engaged when we observe or perform action sequences. However, the way these networks enable translation of complex observed actions into motor commands-such as in the context of dance-remains poorly understood. Emerging evidence suggests that the ability to encode specific visuospatial and kinematic movement properties encountered via different routes of sensorimotor experience may be an integral component of action learning throughout development...
2018: Progress in Brain Research
https://www.readbyqxmd.com/read/29778980/the-influence-of-early-or-delayed-provision-of-ankle-foot-orthoses-on-pelvis-hip-and-knee-kinematics-in-patients-with-sub-acute-stroke-a-randomized-controlled-trial
#19
Corien D M Nikamp, Job van der Palen, Hermie J Hermens, Johan S Rietman, Jaap H Buurke
BACKGROUND: Compensatory pelvis, hip- and knee movements are reported after stroke to overcome insufficient foot-clearance. Ankle-foot orthoses (AFOs) are often used to improve foot-clearance, but the optimal timing of AFO-provision post-stroke is unknown. Early AFO-provision to prevent foot-drop might decrease the development of compensatory movements, but it is unknown whether timing of AFO-provision affects post-stroke kinematics. RESEARCH QUESTIONS: 1) To compare the effect of AFO-provision at two different points in time (early versus delayed) on frontal pelvis and hip, and sagittal hip and knee kinematics in patients with sub-acute stroke...
May 16, 2018: Gait & Posture
https://www.readbyqxmd.com/read/29778979/exploring-the-relationship-between-stability-and-variability-of-the-centre-of-mass-and-centre-of-pressure
#20
Roshanth Rajachandrakumar, Jotvarinder Mann, Alison Schinkel-Ivy, Avril Mansfield
BACKGROUND: There are competing perspectives in the literature regarding the role of movement variability in quiet standing and balance control. Some view high variability as indicative of poor balance control and a contributor to increased fall risk, whereas others view variability as beneficial in providing sensory information that aids balance control. RESEARCH QUESTION: This study aimed to help to clarify the role of variability in balance control by testing two competing hypotheses: that increased variability would lead to instability, or that increased variability would improve stability, where stability is defined as the ability to respond to a perturbation...
May 9, 2018: Gait & Posture
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