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https://www.readbyqxmd.com/read/28655126/peroneus-longus-activity-according-to-various-angles-of-a-ramp-during-cross-ramp-walking-and-one-legged-standing
#1
Sang-Yeol Lee, Seung-Min Lee, Jae-Min Jung
BACKGROUND: Ankle sprain are one of the most common injuries in sports and public health in general. Cross-slope may creat a risk for ankle sprain and are commonly found in both urban and rural environment. OBJECTIVE: The purpose of study was to clarify the environmental risk factor that can be easily occurred ankle sprain during walking (stance phase) and one leg standing at various ramp environment. METHODS: Participants was measured muscle activation on peroneus longus during both conditions (walk across the ramp and one leg stand in the transverse direction) of seven different angle (0∘, 2∘, 5∘, 10∘, 15∘, 20∘, 25∘)...
June 3, 2017: Journal of Back and Musculoskeletal Rehabilitation
https://www.readbyqxmd.com/read/28655085/-effects-of-robot-assisted-minimally-invasive-transforaminal-lumbar-interbody-fusion-and-traditional-open-surgery-in-the-treatment-of-lumbar-spondylolisthesis
#2
G Y Cui, W Tian, D He, Y G Xing, B Liu, Q Yuan, Y Q Wang, Y Q Sun
Objective: To compare the clinical effects of robot-assisted minimally invasive transforaminal lumbar interbody fusion (TLIF) and traditional open TLIF in the treatment of lumbar spondylolisthesis. Methods: A total of 41 patients with lumbar spondylolisthesis accepted surgical treatment in Department of Spinal Surgery of Beijing Jishuitan Hospital From July 2015 to April 2016 were retrospectively analyzed. There were 16 cases accepted robot-assisted minimally invasive TLIF and 25 accepted traditional open TLIF...
July 1, 2017: Zhonghua Wai Ke za Zhi [Chinese Journal of Surgery]
https://www.readbyqxmd.com/read/28655036/objective-and-subjective-measures-of-simultaneous-vs-sequential-bilateral-cochlear-implants-in-adults-a-randomized-clinical-trial
#3
Véronique J C Kraaijenga, Geerte G J Ramakers, Yvette E Smulders, Alice van Zon, Inge Stegeman, Adriana L Smit, Robert J Stokroos, Nadia Hendrice, Rolien H Free, Bert Maat, Johan H M Frijns, Jeroen J Briaire, E A M Mylanus, Wendy J Huinck, Gijsbert A Van Zanten, Wilko Grolman
Importance: To date, no randomized clinical trial on the comparison between simultaneous and sequential bilateral cochlear implants (BiCIs) has been performed. Objective: To investigate the hearing capabilities and the self-reported benefits of simultaneous BiCIs compared with those of sequential BiCIs. Design, Setting, and Participants: A multicenter randomized clinical trial was conducted between January 12, 2010, and September 2, 2012, at 5 tertiary referral centers among 40 participants eligible for BiCIs...
June 22, 2017: JAMA Otolaryngology—Head & Neck Surgery
https://www.readbyqxmd.com/read/28654983/the-effect-of-systemic-hyperoxia-on-optic-nerve-head-blood-flow-in-primary-open-angle-glaucoma-patients
#4
Naoki Kiyota, Yukihiro Shiga, Shiori Suzuki, Marika Sato, Naoko Takada, Shigeto Maekawa, Kazuko Omodaka, Kazuichi Maruyama, Hiroshi Kunikata, Toru Nakazawa
Purpose: To assess the optic nerve head blood flow (ONH BF) response to hyperoxia in glaucoma patients using laser speckle flowgraphy (LSFG), and determine factors influencing vasoreactivity within the ONH. Methods: We performed oxygen provocation testing in 15 eyes of 15 primary open-angle glaucoma (POAG) patients and 15 eyes of 15 age-matched control subjects. During the test, LSFG-derived tissue mean blur rate (MBRT) and clinical variables, including blood pressure, were recorded...
June 1, 2017: Investigative Ophthalmology & Visual Science
https://www.readbyqxmd.com/read/28654982/genetic-african-ancestry-is-associated-with-central-corneal-thickness-and-intraocular-pressure-in-primary-open-angle-glaucoma
#5
Pieter W M Bonnemaijer, Colin Cook, Abhishek Nag, Christopher J Hammond, Cornelia M van Duijn, Hans G Lemij, Caroline C W Klaver, Alberta A H J Thiadens
Purpose: To unravel the relationship between African ancestry, central corneal thickness (CCT), and intraocular pressure (IOP) by estimating the genetic African ancestry (GAA) proportion in primary open-angle glaucoma (POAG) patients and controls from an admixed South African Colored (SAC) and a South African Black (SAB) population. Methods: In this case-control study, 268 POAG patients and 137 controls were recruited from a university clinic in Cape Town, South Africa...
June 1, 2017: Investigative Ophthalmology & Visual Science
https://www.readbyqxmd.com/read/28654844/exploring-the-mechanisms-of-vehicle-front-end-shape-on-pedestrian-head-injuries-caused-by-ground-impact
#6
Sha Yin, Jiani Li, Jun Xu
In pedestrian-vehicle accidents, pedestrians typically suffer from secondary impact with the ground after the primary contact with vehicles. However, information about the fundamental mechanism of pedestrian head injury from ground impact remains minimal, thereby hindering further improvement in pedestrian safety. This study addresses this issue by using multi-body modeling and computation to investigate the influence of vehicle front-end shape on pedestrian safety. Accordingly, a simulation matrix is constructed to vary bonnet leading-edge height, bonnet length, bonnet angle, and windshield angle...
June 24, 2017: Accident; Analysis and Prevention
https://www.readbyqxmd.com/read/28654765/a-traffic-light-grading-system-of-hip-dysplasia-to-predict-the-success-of-arthroscopic-hip-surgery
#7
George Grammatopoulos, Owain L I Davies, Ahmed El-Bakoury, Harinderjit S Gill, Tom C B Pollard, Antonio J Andrade
BACKGROUND: The role of hip arthroscopic surgery in dysplasia is controversial. PURPOSE: To determine the 7-year joint preservation rate after hip arthroscopic surgery in hip dysplasia and identify anatomic and intraoperative features that predict the success of hip preservation with arthroscopic surgery, allowing the formulation of an evidence-based classification system. STUDY DESIGN: Case-control study; Level of evidence, 3. METHODS: Between 2008 and 2013, 111 hips with dysplastic features (acetabular index [AI] >10° and/or lateral center-edge angle [LCEA] <25°) that underwent arthroscopic surgery were identified...
June 1, 2017: American Journal of Sports Medicine
https://www.readbyqxmd.com/read/28654694/ethnic-differences-in-lens-parameters-measured-by-ocular-biometry-in-a-cataract-surgery-population
#8
Dajiang Wang, Behzad Amoozgar, Travis Porco, Zhen Wang, Shan C Lin
PURPOSE: To investigate whether differences exist in lens position and other lens parameters among major ethnic groups with cataractous eyes, which may help explain racial differences in angle closure risk. METHODS: This retrospective, cross-sectional study included 807 adult patients who had cataract surgery between years 2014 and 2016 at the University of California, San Francisco (UCSF). Adult patients of white, Asian, Hispanic and African-American ethnicity were included...
2017: PloS One
https://www.readbyqxmd.com/read/28654630/prognostic-value-of-subretinal-hyperreflective-material-in-neovascular-age-related-macular-degeneration-treated-with-bevacizumab
#9
Russell Pokroy, Michael Mimouni, Edward Barayev, Fani Segev, Noa Geffen, Arie Y Nemet, Ori Segal
PURPOSE: To study the correlation between subretinal hyperreflective material (SHRM) seen on spectral domain optical coherence tomography at baseline and visual outcomes after intravitreal bevacizumab injection in neovascular age-related macular degeneration. METHODS: Consecutive patient charts with treatment-naive center-involved neovascular age-related macular degeneration treated with 3 monthly intravitreal bevacizumab's, continued as needed, from 2011 to 2014 were reviewed...
June 20, 2017: Retina
https://www.readbyqxmd.com/read/28654602/a-morphometric-study-of-the-newborn-ear-and-an-analysis-of-factors-related-to-congenital-auricular-deformities
#10
Hui Zhao, Limin Ma, Xiangdong Qi, Jianzeng Qin, Baoming Yin, Mei Zhong, Yanjun He, Chenghong Wang
BACKGROUND: The incidence of neonatal ear deformities varies widely in the literature, and the incidence of those that correct spontaneously is largely unknown. To address these questions, the authors analyzed the auricles of 1500 newborns from the Pearl River Delta within the first 7 days of life and again at 30 days of age. METHODS: Using a combination of direct measurement and digital image measurement, the authors measured physiognomic ear length, physiognomic ear breadth, morphologic ear length, vertical distance between head and ear, and auriculocephalic angle of the newborns...
July 2017: Plastic and Reconstructive Surgery
https://www.readbyqxmd.com/read/28654274/studies-on-the-behavior-of-eucalyptol-and-terpinen-4-ol-natural-food-additives-and-ecological-pesticides-in-model-lipid-membranes
#11
Katarzyna Hąc-Wydro, Michał Flasiński, Marcin Broniatowski, Monika Sołtys
Effective application of the essential oils requires detailed exploration of their mechanism of action and the origin of diverse activity of their components. In this work, the influence of eucalyptol and terpinen-4-ol on artificial membranes was studied to verify whether the differences in the activity of these compounds are related to their effect on membranes. The properties of monolayers formed from structurally different lipids in the presence of terpenes were examined based on the results of the surface pressure-area measurements, penetration studies, and Brewster angle microscopy experiments...
June 27, 2017: Langmuir: the ACS Journal of Surfaces and Colloids
https://www.readbyqxmd.com/read/28654237/light-induced-proton-pumping-with-a-semiconductor-vision-for-photoproton-lateral-separation-and-robust-manipulation
#12
Hanna M Maltanava, Sergey K Poznyak, Daria V Andreeva, Marcela C Quevedo, Alexandre C Bastos, João Tedim, Mario G S Ferreira, Ekaterina V Skorb
Energy transfer reactions are the key for living open systems, biological chemical networking and development of life inspired nanoscale machineries. It is a challenge to find simple reliable synthetic chemical networks providing a localization of the time dependent flux of matter. In this paper we look to photocatalytic reaction on TiO2 from different angle focusing on proton generation and introduce a reliable, minimal reagent consuming, stable inorganic light promoted proton pump. Localized illumination was applied to a TiO2 surface in solution for reversible spatially controlled "inorganic photoproton" isometric cycling, the lateral separation of water splitting reactions...
June 27, 2017: ACS Applied Materials & Interfaces
https://www.readbyqxmd.com/read/28654160/pontamine-fast-scarlet-4b-bifluorescence-and-measurements-of-cellulose-microfibril-angles
#13
J Thomas, N A Idris, D A Collings
Pontamine fast scarlet 4B is a red paper and textiles dye that has recently been introduced as a fluorescent probe for plant cell walls. Pontamine exhibits bifluorescence, or fluorescence dependent on the polarization of the excitation light: Because cellulose is aligned within the cell wall, pontamine-labelled cell walls exhibit variable fluorescence as the excitation polarization is modulated. Thus, bifluorescence measurements require polarized excitation that can be directly or indirectly modulated. In our confocal microscopy observations of various cellulose samples labelled with pontamine, we modulated excitation polarization either through sample rotation or by the confocal's scanfield rotation function...
June 27, 2017: Journal of Microscopy
https://www.readbyqxmd.com/read/28654086/a-multiscale-dataset-for-understanding-complex-eco-hydrological-processes-in-a-heterogeneous-oasis-system
#14
Xin Li, Shaomin Liu, Qin Xiao, Mingguo Ma, Rui Jin, Tao Che, Weizhen Wang, Xiaoli Hu, Ziwei Xu, Jianguang Wen, Liangxu Wang
We introduce a multiscale dataset obtained from Heihe Watershed Allied Telemetry Experimental Research (HiWATER) in an oasis-desert area in 2012. Upscaling of eco-hydrological processes on a heterogeneous surface is a grand challenge. Progress in this field is hindered by the poor availability of multiscale observations. HiWATER is an experiment designed to address this challenge through instrumentation on hierarchically nested scales to obtain multiscale and multidisciplinary data. The HiWATER observation system consists of a flux observation matrix of eddy covariance towers, large aperture scintillometers, and automatic meteorological stations; an eco-hydrological sensor network of soil moisture and leaf area index; hyper-resolution airborne remote sensing using LiDAR, imaging spectrometer, multi-angle thermal imager, and L-band microwave radiometer; and synchronical ground measurements of vegetation dynamics, and photosynthesis processes...
June 27, 2017: Scientific Data
https://www.readbyqxmd.com/read/28654042/a-unified-methodological-framework-for-vestibular-schwannoma-research
#15
Lukas D Landegger, Jessica E Sagers, Sonam Dilwali, Takeshi Fujita, Mehmet I Sahin, Konstantina M Stankovic
Vestibular schwannomas are the most common neoplasms of the cerebellopontine angle, making up 6-8% percent of all intracranial growths. Though these tumors cause sensorineural hearing loss in up to 95% of affected individuals, the molecular mechanisms underlying this hearing loss remain elusive. This article outlines the steps established in our laboratory to facilitate the collection and processing of various primary human tissue samples for downstream research applications integral to the study of vestibular schwannomas...
June 20, 2017: Journal of Visualized Experiments: JoVE
https://www.readbyqxmd.com/read/28654033/scanning-light-scattering-profiler-slps-based-methodology-to-quantitatively-evaluate-forward-and-backward-light-scattering-from-intraocular-lenses
#16
Bennett N Walker, Robert H James, Don Calogero, Ilko K Ilev
The scanning light scattering profiler (SLSP) methodology has been developed for the full-angle quantitative evaluation of forward and backward light scattering from intraocular lenses (IOLs) using goniophotometer principles. This protocol describes the SLSP platform and how it employs a 360° rotational photodetector sensor that is scanned around an IOL sample while recording the intensity and location of scattered light as it passes through the IOL medium. The SLSP platform can be used to predict, non-clinically, the propensity for current and novel IOL designs and materials to induce light scatter...
June 6, 2017: Journal of Visualized Experiments: JoVE
https://www.readbyqxmd.com/read/28653865/sagittal-plane-knee-moment-during-gait-and-knee-cartilage-thickness
#17
Randy J Schmitz, David Harrison, Hsin-Min Wang, Sandra J Shultz
CONTEXT:   Understanding the factors associated with thicker cartilage in a healthy population is important when developing strategies aimed at minimizing the cartilage thinning associated with knee osteoarthritis progression. Thicker articular cartilage is commonly thought to be healthier cartilage, but whether the sagittal-plane biomechanics important to gait are related to cartilage thickness is unknown. OBJECTIVE:   To determine the relationship of a weight-bearing region of the medial femoral condyle's cartilage thickness to sagittal gait biomechanics in healthy individuals...
June 2, 2017: Journal of Athletic Training
https://www.readbyqxmd.com/read/28653854/a-thermogelling-supramolecular-hydrogel-with-sponge-like-morphology-as-a-cytocompatible-bioink
#18
Thomas Lorson, Sebastian Jaksch, Michael M Lübtow, Tomasz Jüngst, Jürgen Groll, Tessa Lühmann, Robert Luxenhofer
Biocompatible polymers that form thermoreversible supramolecular hydrogels have gained great interest in biomaterials research and tissue engineering. When favorable rheological properties are achieved at the same time, they are particularly promising candidates as material that allow for the printing of cells, so-called bioinks. We synthesized a novel thermogelling block copolymer and investigated the rheological properties of its aqueous solution by viscosimetry and rheology. The polymers undergo thermogelation between room temperature and body temperature, form transparent hydrogels of surprisingly high strength (G' > 1000 Pa) and show rapid and complete shear recovery after stress...
June 27, 2017: Biomacromolecules
https://www.readbyqxmd.com/read/28653826/dynamic-defrosting-on-scalable-superhydrophobic-surfaces
#19
Kevin R Murphy, William T McClintic, Kevin C Lester, C Patrick Collier, Jonathan B Boreyko
Recent studies have shown that frost can grow in a suspended Cassie state on nanostructured superhydrophobic surfaces. During defrosting, the melting sheet of Cassie frost spontaneously dewets into quasi-spherical slush droplets that are highly mobile. Promoting Cassie frost would therefore seem advantageous from a defrosting standpoint; however, nobody has systematically compared the efficiency of defrosting Cassie ice versus defrosting conventional surfaces. Here, we characterize the defrosting of an aluminum plate, one half of which exhibits a superhydrophobic nanostructure while the other half is smooth and hydrophobic...
June 27, 2017: ACS Applied Materials & Interfaces
https://www.readbyqxmd.com/read/28653744/estimates-of-genetic-parameters-and-genotypic-values-prediction-in-maize-landrace-populations-by-reml-blup-procedure
#20
D Baretta, M Nardino, I R Carvalho, A J de Pelegrin, M Ferrari, V J Szareski, W S Barros, V Q de Souza, A C de Oliveira, L C da Maia
The REML/BLUP statistics are analyses that can be used as selective criteria in the routine of maize breeding programs. The present study aims to determine the genetic potential in crosses of landrace populations applying the REML/BLUP methodology, and to identify populations for the synthesis of new populations and intrapopulation selection for family farming systems, as well as genetic constitutions for use in maize breeding programs. Nine top cross hybrids obtained in the 2012/2013 harvest were evaluated along with their testator, the landraces used as parents, and four commercial hybrids, in a randomized block design, with information taken from the average of each plot...
June 20, 2017: Genetics and Molecular Research: GMR
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