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Tsoi Stanislav - - 2014
A sharp tip of atomic force microscope is employed to probe van der Waals forces of a silicon oxide substrate with adhered graphene. Experimental results obtained in the range of distances from 3 to 20 nm indicate that single-, double-, and triple-layer graphenes screen the van der Waals forces of ...
Azov Vladimir A - - 2014
Macrocyclization between tetrathiafulvalene (TTF) dithiolates and bis-bromomethylazobenzenes/bis-bromomethylstilbenes is investigated under high dilution conditions. We show that macrocycles of different size can be formed depending on whether the (Z)- or (E)-isomers of azobenzene (AB) or stilbene are used. This represents the first example of a light-controllable cyclization reaction. The oxidation potential ...
Toki Toshihide T Tohoku University Graduate School of Dentistry, 4-1 Seiryo, Aoba-ku, Sendai 980-8575, - - 2014
The present study aimed to evaluate the interaction between wavelength of light in the range of ultra violet A-visible and concentration of H2O2 in the reaction of photolysis of H2O2 from the point of view of hydroxyl radical (·OH) generation and the bactericidal activity. Light emitting diodes (LEDs) emitting the ...
Brons Inge I Academic Medical Center, Clinical and Experimental Audiology, Meibergdreef 9, 1105 AZ, Amsterdam, The - - 2014
Hearing-aid noise reduction should reduce background noise, but not disturb the target speech. This objective is difficult because noise reduction suffers from a trade-off between the amount of noise removed and signal distortion. It is unknown if this important trade-off differs between normal-hearing (NH) and hearing-impaired (HI) listeners. This study ...
Bandara H M H N HM Division of Pharmaceutics, College of Pharmacy PHR 4.214, The University of Texas at Austin, 1 University station A1920, Austin, Texas, - - 2014
Microbial biofilms are highly refractory to antimicrobials. The aim of this study was to investigate the use of low-frequency vibration therapy (20-20 kHz) on antibiotic-mediated Pseudomonas aeruginosa biofilm eradication. In screening studies, low-frequency vibrations were applied on model biofilm compositions to identify conditions in which surface standing waves were observed. ...
Kawashima Hiroki H Radiology Division, Kanazawa University Hospital, Division of Health Sciences, Graduate School of Medical Science, Kanazawa University, Kanazawa, - - 2014
We hypothesized that wrist joint motion involves a "wrist rhythm" similar to the scapulohumeral rhythm. Therefore, we used a flat-panel detector to evaluate the ratio of radiolunate and capitolunate joint motions during wrist joint motion by dynamic radiography. The subjects were 20 healthy men. Dynamic imaging of the wrist joint ...
Hokr Brett H BH Texas A&M University, College Station, TX - - 2014
The task of identifying explosives, hazardous chemicals, and biological materials from a safe distance is the subject we consider. Much of the prior work on stand-off spectroscopy using light has been devoted to generating a backward-propagating beam of light that can be used drive further spectroscopic processes. The discovery of ...
Pires Neville J NJ The University of Western - - 2014
Two commonly proposed mechanical explanations for the WRT include the prevention of muscular over-exertion (effort) and the minimisation of peak musculoskeletal loads and thus injury risk. The purpose of this study was to address these hypotheses at a joint level by analysing the effect of speed on discrete lower-limb joint ...
Adikrishna Arnold A Department of Orthopedic Surgery, Asan Medical Center, University of Ulsan, Seoul, - - 2014
The human elbow joint has been regarded as a loose hinge joint, with a unique helical motion of the axis during extension-flexion. This study was designed to identify the helical axis in the ulnohumeral joint during elbow extension-flexion by tracking the midpoint between the coronoid tip and the olecranon tip ...
Ramenzoni Verónica C - - 2014
How do we map joint actions we participate in onto joint actions we observe others performing, such as when a couple dancing tango observes another couple dancing tango? We investigated this question using a task in which participants were instructed to perform individual or joint movements in synchrony with individual ...
Peltz Cathryn D CD Henry Ford Health Systems, Department of Orthopaedic Surgery, Bone and Joint Center, 2799 W. Grand Blvd, E&R 2015, Detroit, MI 48202, USA. Electronic address: - - 2014
Running is a popular form of recreation, but injuries are common and may be associated with abnormal joint motion. The objective of this study was to determine the effect of three footwear conditions - barefoot (BF), an ultraflexible training shoe (FREE), and a motion control shoe (MC) - on 3D ...
Amijima Makoto M Graduate School of Life and Environmental Sciences, Osaka Prefecture University, 1-1 Gakuen, Nakaku, Sakai, Osaka 599-8531, - - 2014
We addressed the question of whether an additional round of endoreduplication in dark-grown hypocotyls is a common feature in dicotyledonous plants having endopolyploid tissues. Ploidy distributions of hypocotyl tissues derived from in vitro-grown spinach (Spinacia oleracea L. cv. Atlas) seedlings grown under different light conditions were analyzed by flow cytometry. ...
Thompson Nathan E NE Department of Anatomical Sciences, Stony Brook University School of Medicine, Stony Brook, NY, - - 2014
During terrestrial locomotion, chimpanzees exhibit dorsiflexion of the midfoot between midstance and toe-off of stance phase, a phenomenon that has been called the "midtarsal break." This motion is generally absent during human bipedalism, and in chimpanzees is associated with more mobile foot joints than in humans. However, the contribution of ...
Munoz-Price L Silvia LS Department of Medicine, University of Miami Miller School of Medicine, Miami, - - 2014
Forty anesthesia providers were evaluated with and without hand sanitizer dispensers present on the anesthesia machine. Having a dispenser increased the frequency of hand hygiene only from 0.5 to 0.8 events per hour (P = .01). Other concomitant interventions are needed to further increase hand hygiene frequency among anesthesia providers.
McDaniel John J Department of Exercise Science, Kent State University, Kent, - - 2014
Previous authors have reported power-pedaling rate relationships for maximal cycling. However, the joint-specific power-pedaling rate relationships that contribute to pedal power have not been reported. We determined absolute and relative contributions of joint-specific powers to pedal power across a range of pedaling rates during maximal cycling. Ten cyclists performed maximal ...
Pascall Andrew J AJ Lawrence Livermore National Laboratory, Livermore, CA, 94550, - - 2014
A versatile, new additive manufacturing technique based on electrophoretic deposition of colloids onto light-patterned photoelectrodes is demonstrated. Particles to be deposited move via electrophoresis and adhere to the illuminated regions of the electrode. This process is repeated with different materials and illumination patterns to fabricate arbitrarily patterned 3D multimaterial composites.
Qin Jin J Department of Work Environment, University of Massachusetts, Lowell, MA 01854, USA; Liberty Mutual Research Institute for Safety, Hopkinton, MA 01748, USA. Electronic address: - - 2014
Repetitive low-force contractions are common in the workplace and yet can lead to muscle fatigue and work-related musculoskeletal disorders. The current study aimed to investigate potential motion adaptations during a simulated repetitive light assembly work task designed to fatigue the shoulder region, focusing on changes over time and age-related group ...
Atarod Mohammad M McCaig Institute for Bone and Joint Health, Faculty of Medicine, University of Calgary, 3330 Hospital Drive NW, Calgary, AB, T2N 4N1, Canada, - - 2014
Assessing joint function following trauma and its inter-relation with degenerative changes requires an understanding of the normal state of structural loading in the joint. Very few studies have attempted to reproduce joint specific in vivo motions in vitro to quantify the actual loads carried by different tissues within the knee ...
Jang Lee-Woon LW School of Advanced Materials Engineering and Research Center of Advanced Materials Development, Chonbuk National University , Jeonju 561-756, - - 2014
Free-standing GaN light-emitting diode (LED) structure with high crystalline quality was fabricated by combining electrochemical and photoelectrochemical etching followed by regrowth of LED structure and subsequent mechanical detachment from a substrate. The structural quality and composition of the regrown LED film thus produced was similar to standard LED, but the ...
Vater Svenja M SM Applied Physical Chemistry, Ruprecht-Karls-University Heidelberg, Germany ; Institute for Functional Interfaces, IFG, Karlsruhe Institute of Technology, Karlsruhe, - - 2014
Holographic 3D tracking was applied to record and analyze the swimming behavior of Pseudomonas aeruginosa. The obtained trajectories allow to qualitatively and quantitatively analyze the free swimming behavior of the bacterium. This can be classified into five distinct swimming patterns. In addition to the previously reported smooth and oscillatory swimming ...
Leardini Alberto A Movement Analysis Laboratory, Istituto Ortopedico Rizzoli, Bologna, Italy. - - 2014
The human ankle joint complex plays a fundamental role in gait and other activities of daily living. At the same time, it is a very complicated anatomical system but the large literature of experimental and modelling studies has not fully described the coupled joint motion, position and orientation of the ...
Kuo Li-Chieh LC 0000-0001-7728-0096 Department of Occupational Therapy, National Cheng Kung University, Tainan 701, - - 2014
This study investigated how the posture of the thumb while performing common pinch movements and the levels of pinch force applied by the thumb affect the arthrokinematics of the trapeziometacarpal joint in vivo. Fifteen subjects performed the pinch tasks at the distal phalange (DP), proximal interphalangeal (PIP) joint, and metacarpophalangeal ...
Wang Zheng Z Department of Kinesiology, The Pennsylvania State University, United States. Electronic address: - - 2013
This study examined the influence of visual information on the multi-joint coordination patterns in maintaining one-leg stance. 12 participants stood still on their left leg for two 1min trials with and without visual information. The multi-joint coordination patterns in the frontal plane were examined using a frequency domain principal component ...
Hadadi Mohammad M Center for Human Movement Science Research, Shiraz University of Medical - - 2013
This study aims to investigate some biomechanical effects of a thigh corset with side bars (TC-SB) on the gait of a transtibial amputee. During two test conditions of with/without TC-SB, the angles of prosthetic lower limb joints, stride time, stance time and maximum vertical ground reaction force were evaluated. Only ...
Etemad S Ali - - 2013
In this study, the notion of additivity in perception of affect from limb motion is investigated. Specifically, we examine whether the impact of multiple limbs in perception of affect is equal to the sum of the impacts of each individual limb. Several neutral, happy, and sad walking sequences are first ...
Baier David B - - 2013
Crocodylians occupy a key phylogenetic position for investigations of archosaur locomotor evolution. Compared to the well-studied hindlimb, relatively little is known about the skeletal movements and mechanics of the forelimb. In this study, we employed manual markerless XROMM (X-ray Reconstruction Of Moving Morphology) to measure detailed 3-D kinematics of the ...
Sasagawa Shun - - 2013
Recent studies have demonstrated that human quiet standing is a multi-joint movement, whereby the central nervous system (CNS) is required to deal with dynamic interactions among the joints to achieve optimal motor performance. The purpose of this study was to investigate how the CNS deals with such inter-joint interaction during ...
Svec Adam A Center for Hearing Research, Boys Town National Research Hospital, 555 N. 30th Street, Omaha, Nebraska - - 2013
The current study measured the additional masking obtained for combinations of forward and simultaneous maskers as a function of forward masker bandwidth, signal delay, and simultaneous masker level. The effects of the two individual maskers were equated in all conditions. Additional masking increased with increasing masker level, increasing signal delay, ...
Miller Ross H - - 2013
Peak knee joint contact forces ("loads") in running are much higher than they are in walking, where the peak load has been associated with the initiation and progression of knee osteoarthritis. However, runners do not have an especially high risk of osteoarthritis compared to non-runners. This paradox suggests that running ...
Aizawa Junya - - 2013
Purpose: The aim of this study was to show highly reliable normal values and three-dimensional characteristics for final range of motion during active movements of the upper extremity joints, and to develop a database from healthy participants, with the advantage of this database lying in the methods of defining shoulder ...
Laback Bernhard - - 2013
Laback et al. [(2011). J. Acoust. Soc. Am. 129, 888-897] investigated the additivity of nonsimultaneous masking using short Gaussian-shaped tones as maskers and target. The present study involved Gaussian stimuli to measure the additivity of simultaneous masking for combinations of up to four spectrally separated maskers. According to most basilar ...
Zhang Jun-Tian - - 2013
This study aims to validate a commercially available inertial sensor based motion capture system, Xsens MVN BIOMECH using its native protocols, against a camera-based motion capture system for the measurement of joint angular kinematics. Performance was evaluated by comparing waveform similarity using range of motion, mean error and a new ...
Papaiakovou Georgios - - 2013
Abstract The aim of the present study was to investigate the kinematic and kinetic differences in the execution of vertical jumps between individuals with good and poor ankle dorsiflexion. Fifteen physical education students were assigned to the flexible group (FG), while another 15 were assigned to the inflexible group (IFG). ...
Komar John - - 2013
This study compared inter-limb coordination and indicators of swim efficiency and effectiveness between expert and recreational breaststroke swimmers. Arm-leg coordination of 8 expert and 10 recreational swimmers at two different paces, slow and sprint, were compared using relative phase between elbow and knee. For each participant, knee and elbow angles ...
Kimura T - - 2013
The present study assessed whether an unperceivable, noise-like electrical stimulation of a knee joint enhances the stability of quiet bipedal stance and treadmill walking in young subjects. The results showed that the slow postural sway measures in quiet bipedal stance were significantly reduced by the electrical noise (P<0.05). In the ...
Suenaga Hiromichi - - 2013
Grasso et al. (1998) proposed the hypothesis that motor commands for the backward walking is designed so as to reproduce the reversal motion of forward walking. In this study, we analyzed the leg joint synergy in backward walking by the UCM analysis and compared the results with the time reversal ...
Rodrigues Pedro - - 2013
Little biomechanical evidence exists to support the association between excessive foot pronation and anterior knee pain (AKP). One issue could be the way excessive pronation has been defined. Recent evidence has suggested that evaluating pronation in the context of the joint's available range of motion (ROM, anatomical threshold) provides greater ...
Wang Lin-Hwa - - 2013
Previous research on baseball pitchers' wrists, elbows, and should joints contributes to our understanding of pitchers' control over delicate joint motion and ball release. However, limited research on forearm, wrist, and hand joints prevents full comprehension of the throwing mechanism. The present descriptive laboratory study quantifies angular performances of hand ...
Martin Caroline - - 2013
PURPOSE: The purposes of this study were twofold: (a) measure the effects of temporal parameters on both ball velocity and upper limb joint kinetics in order to identify pathomechanical factors during the tennis serve; and (b) validate these pathomechanical factors by comparing injured and non-injured players. METHODS: Serves of expert ...
Kipp Kristof - - 2013
BACKGROUND: People with chronic ankle instability display different ankle joint motions compared to healthy people. The purpose of this study was to investigate the strategies used to control ankle joint motions between a group of people with chronic ankle instability and a group of healthy, matched controls. METHODS: Kinematic data ...
Nimbarte Ashish D - - 2013
The primary objective of this study was to quantify the effect of dynamic cart pushing exertions on the biomechanical loading of shoulder and low back. Ten participants performed cart pushing tasks on flat (0°), 5°, and 10° ramped walkways at 20 kg, 30 kg, and 40 kg weight conditions. An optoelectronic motion capturing ...
Na Hyejin - - 2013
We report the systematic control of the morphology of β-NaYF4:Yb,Er/Tm upconversion nanophosphors (UCNPs) from large spheres (37.9 nm) to rods (length = 60.1 nm, width = 21.5 nm) and from rods to hexagonal prisms (length = 48.8 nm, width = 44.0 nm) or small spheres (14.0 nm) by the use ...
Lee Minhyeon - - 2013
Backward walking (BW) is a recently emerging exercise. However, limited studies exist regarding the motion analysis of BW compared with that of forward walking (FW). The present study identified the mechanisms of BW through kinetic analysis and focused on BW time-reversed data. A three-dimensional motion capture system was used to ...
Wood Joanne M - - 2013
Conspicuity limitations make bicycling at night dangerous. This experiment quantified bicyclists' estimates of the distance at which approaching drivers would first recognize them. Twenty five participants (including 13 bicyclists who rode at least once per week, and 12 who rode once per month or less) cycled in place on a ...
Rosalie Simon M - - 2013
The timing of visual information pick-up for visual anticipation was examined by comparing the capability of multiple skill groups, expert and near-expert karate athletes and novices, to block attacks using an in situ temporal occlusion paradigm. Participants stood facing a karate opponent and then attempted to block attacks (kicks and ...
Katz Yonatan - - 2013
Optogenetics has rapidly become a standard method in neuroscience research. Although significant progress has been made in the development of molecular tools, refined techniques for combined light delivery and recording in vivo are still lacking. For example, simultaneous intracellular recording and light stimulation have only been possible by using two ...
Tani Yusuke - - 2013
It has been argued that when an observer moves, a contingent retinal-image motion of a stimulus would strengthen the perceived glossiness. This would be attributed to the veridical perception of three-dimensional structure by motion parallax. However, it has not been investigated whether the effect of motion parallax is more than ...
Rosso Claudio - - 2013
The shoulder has the greatest range of motion of any joint in the human body. This is due, in part, to the complex interplay between the glenohumeral (GH) joint and the scapulothoracic (ST) articulation. Currently, our ability to study shoulder kinematics is limited, because existing models isolate the GH joint ...
Nakamura Shinji - - 2013
It has been repeatedly reported that visual stimuli containing ajittering/oscillating motion component can induce self-motion perception more strongly than a pure radial expansion pattern. A psychophysical experiment with 11 observers revealed that the additional accelerating components of the visual motion have to be convoluted with the motion of the main-axis ...
Hess Florian - - 2013
Background. Dynamic joint motion recording combined with CT-based 3D bone and joint surface data is accepted as a helpful and precise tool to analyse joint. The purpose of this study is to demonstrate the feasibility of these techniques for quantitative motion analysis of the interphalangeal joint in 3D. Materials and ...
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