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Hughes Nicholas J NJ Queensland Brain Institute, University of Queensland, St. Lucia, QLD 4072, Australia - - 2014
The colorful representation of orientation preference maps in primary visual cortex has become iconic. However, the standard representation is misleading because it uses a color mapping to indicate orientations based on the HSV (hue, saturation, value) color space, for which important perceptual features such as brightness, and not just hue, ...
Stadnik Y V YV School of Physics, University of New South Wales, Sydney 2052, - - 2014
We propose schemes for the detection of topological defect dark matter using pulsars and other luminous extraterrestrial systems via nongravitational signatures. The dark matter field, which makes up a defect, may interact with standard model particles, including quarks and the photon, resulting in the alteration of their masses. When a ...
Römgens A M AM Soft Tissue Biomechanics and Engineering, Department of Biomedical Engineering, Eindhoven University of Technology, PO Box 513, 5600 MB Eindhoven, The Netherlands. Electronic address: - - 2014
Microneedles represent promising tools for delivery of drugs to the skin. However, before these microneedles can be used in clinical practice, it is essential to understand the process of skin penetration by these microneedles. The present study was designed to monitor both penetration depth and force of single solid microneedles ...
Chen Ming M Institute of Neuroscience and State Key Laboratory of Neuroscience, Shanghai Institutes for Biological Sciences, Chinese Academy of Sciences, and University of Chinese Academy of Sciences, Shanghai 200031, - - 2014
The ability to extract the shape of moving objects is fundamental to visual perception. However, where such computations are processed in the visual system is unknown. To address this question, we used intrinsic signal optical imaging in awake monkeys to examine cortical response to perceptual contours defined by motion contrast ...
Moorman Valerie J VJ Gail Holmes Equine Orthopaedic Research Center, Department of Clinical Sciences, College of Veterinary Medicine and Biomedical Sciences, Colorado State University, Fort Collins, CO - - 2014
Objective-To determine intralimb orientation changes with an inertial measurement unit (IMU) in hooves of horses at a walk and trot after induction of weight-bearing single forelimb lameness and to determine whether hoof orientations are similar to baseline values following perineural anesthesia. Animals-6 clinically normal horses. Procedures-3-D hoof orientations were determined ...
Zhang Xingjian X College of Metropolitan Transportation, Beijing University of Technology, Beijing 100124, - - 2014
Driving under the influence of alcohol on curved roadway segments has a higher risk than driving on straight segments. To explore the effect of different breath alcohol concentration (BrAC) levels on driving performance in roadway curves, a driving simulation experiment was designed to collect 25 participants' driving performance parameters (i.e., ...
Dorman Michael F MF 1Department of Speech and Hearing Science, Arizona State University, Tempe, Arizona, USA; 2MED-EL Corporation, Durham, North Carolina, USA; and 3Department of Communication Science and Disorders, University of Pittsburgh, Pittsburgh, Pennsylvania, - - 2014
The aims of this study were (i) to determine the magnitude of the interaural level differences (ILDs) that remain after cochlear implant (CI) signal processing and (ii) to relate the ILDs to the pattern of errors for sound source localization on the horizontal plane. The listeners were 16 bilateral CI ...
Sarkissian Carl C The Cleveland Clinic, Glickman Urological and Kidney Institute , 9500 Euclid Ave , Q9-100 , Cleveland, Ohio, United States , 44195 , 216-444-2073 ; - - 2014
Purpose: To conduct a comparative evaluation of ultrasonic, pneumatic, and dual ultrasonic lithotripsy to predict the safety of probes on urinary tract tissue. Materials and Methods: The Swiss Lithoclast Ultra (ultrasonic only (US), and ultrasonic-pneumatic combination (US+P)), and the Gyrus ACMI Cyberwand (dual-ultrasonic (DUS)) were evaluated. Fresh porcine ureters, bladders, ...
Rampp Stefan S Departments of *Neurosurgery and †Otorhinolaryngology, Head and Neck Surgery, University Hospital Halle (Saale), Halle (Saale), - - 2014
For intraoperative monitoring of auditory nerve function, the auditory steady-state response (ASSR) analysis may be an alternative to brain stem auditory evoked potentials, offering frequency specificity and short detection times. Clinical studies investigating the viability of ASSR under total intravenous anesthesia have not been performed. During craniotomy under total intravenous ...
Pfanner Florian F Institute of Medical Physics, University of Erlangen-Nürnberg, 91052 Erlangen, Germany and Siemens AG, Healthcare Sector, Siemensstr. 1, 91301 Forchheim, - - 2014
To avoid motion artifacts, medical imaging devices are often synchronized with the patient's cardiac motion. Today, the ECG is used to determine the heartbeat and therewith trigger the imaging device. However, the ECG requires additional effort to prepare the patient, e.g., mount and wire electrodes and it is not able ...
Sumitani Masahiko M Department of Pain and Palliative Medicine, The University of Tokyo Hospital, Japan; Department of Anesthesiology and Pain Relief Center, The University of Tokyo Hospital, 7-3-1 Hongo, Bunkyo-ku, Tokyo 113-0033, Japan. Electronic address: - - 2014
Space is represented by integrating egocentric and allocentric reference frames; however, little is known about the role of these independent reference frames in number representation. Using patients with unilateral pathologic pain in one limb, we investigated whether number representation is closely linked to space representation by evaluating visual subjective body-midline ...
Kamio Yoshinobu Y Department of Neurosurgery, Head and Neck Surgery, Hamamatsu University School of - - 2014
Postoperative visual outcome is a major concern in transsphenoidal surgery (TSS). Intraoperative visual evoked potential (VEP) monitoring has been reported to have little usefulness in predicting postoperative visual outcome. To re-evaluate its usefulness, we adapted a high-power light-stimulating device with electroretinography (ERG) to ascertain retinal light stimulation. Intraoperative VEP monitoring ...
Storey S J SJ Department of Microbiology and Virology, University College London Hospitals, London, - - 2014
Hand hygiene compliance is traditionally monitored by visual methods that are open to bias and strictly limited in time and place. Automatic monitoring may be more effective for infection control as well as performance management. To establish accuracy and acceptability of an automatic contact monitoring system for hand hygiene. Monitoring ...
Di Haibo - - 2014
Visual fixation plays a key role in the differentiation between vegetative state/unresponsive wakefulness (VS/UWS) syndrome and minimally conscious state (MCS). However, the use of different stimuli changes the frequency of visual fixation occured in patients, thereby possibly affecting the accuracy of the diagnosis. In order to establish a standardized assessment ...
Du Lingguo L Univ. Bordeaux, CNRS, Solvay, LOF UMR 5258, - - 2014
We investigate pressure-driven motion of liquid-liquid menisci in circular tubes, for systems in pseudopartial wetting conditions. The originality of this type of wetting lies in the coexistence of a macroscopic contact angle with a wetting liquid film covering the solid surface. Focusing on small capillary numbers, we report observations of ...
Monaghan Gail M GM Department of Physical Therapy & Athletic Training, College of Health and Rehabilitation Sciences: Sargent College, Boston, MA, USA. Electronic address: - - 2014
Clinically, foot structures are assessed intrinsically - relation of forefoot to rearfoot and rearfoot to leg. We have argued that, from a biomechanical perspective, the interaction of the foot with the ground may influence forces and torques that are propagated through the lower extremity. We proposed that a more appropriate ...
Tsunoda Kanako K Departments of Dermatology, School of Medicine, Iwate Medical University, Morioka, - - 2014
Intense pulsed light (IPL) technology has long been used in the treatment of facial telangiectasia. While the large spot size of traditional IPL devices offers rapid coverage, it has limitations in terms of visibility and uniform contact with the skin in contoured areas of the face. The novel IPL used ...
Saba Shahryar G - - 2014
We have developed a novel and practical cardiovascular magnetic resonance (CMR) technique to evaluate left ventricular (LV) mitral annular motion by tracking the atrioventricular junction (AVJ). To test AVJ motion analysis as a metric for LV function, we compared AVJ motion variables between patients with hypertrophic cardiomyopathy (HCM), a group ...
Volcic Robert R Center for Neuroscience and Cognitive Systems@UniTn, Istituto Italiano di Tecnologia, Corso Bettini 31, 38068, Rovereto, TN, Italy, - - 2014
When humans grasp an object, the thumb habitually contacts the object on the visible part, whereas the index finger makes contact with the object on the occluded part. Considering that the contact points play a critical role in object-oriented actions, we studied if and how the visibility of the points ...
Russell Esposito Elizabeth E Center for the Intrepid, Department of Orthopaedics and Rehabilitation, Brooke Army Medical Center, Ft Sam Houston, TX, - - 2014
Ankle-foot orthoses (AFOs) are commonly prescribed during rehabilitation after limb salvage. AFO stiffness is selected to help mitigate gait deficiencies. A new custom dynamic AFO, the Intrepid Dynamic Exoskeletal Orthosis (IDEO), is available to injured service members but prescription guidelines are limited. In this study we ask (1) does dynamic ...
Nazeri Alireza A Department of Cardiology, Texas Heart Institute, Houston, - - 2014
During radiofrequency ablation (RFA), the ability to know whether a steam pop has led to cardiac perforation (CP) would be of profound clinical significance. We aimed to determine whether catheter contact-force characteristics can predict whether a steam pop during RFA causes CP. We used a 7.5F Thermocool® Smarttouch™ force-sensing catheter ...
Müller Roy R Motionscience, Institute of Sport Sciences, Friedrich Schiller University Jena, Seidelstraße 20, 07749 Jena, Germany. Electronic address: - - 2014
Walking in even the most familiar environment posesses a challenge to humans due to continuously changing surface conditions such as compliance, slip, or level. These changes can be visible or invisible due to camouflage. In order to prevent falling, camouflaged changes in the ground level in particular require a quick ...
Peltz Cathryn D CD Bone and Joint Center, Henry Ford Hospital, Detroit, MI. - - 2014
Rotator cuff tears are a common condition causing pain and disability, but the relationships among clinical measures of shoulder function and measures of glenohumeral joint (GHJ) function are not well known. In the study reported here, dynamic in vivo GHJ motion was measured during abduction from biplane radiographs in 22 ...
Lens Eelco E Department of Radiation Oncology, Academic Medical Center, University of Amsterdam , Amsterdam , The - - 2014
Background. In radiotherapy, the magnitude of respiratory-induced tumor motion is often measured using a single four-dimensional computed tomography (4DCT). This magnitude is required to determine the internal target volume. The aim of this study was to compare the magnitude of respiratory-induced motion of pancreatic tumors on a single 4DCT with ...
Collison Frederick T FT *Pangere Center for Hereditary Retinal Diseases, The Chicago Lighthouse for People Who Are Blind or Visually Impaired, Chicago, Illinois; †Department of Ophthalmology, University of Illinois at Chicago, Chicago, Illinois; and Departments of ‡Ophthalmology, and §Pathology and Cell Biology, Columbia University, New York, New - - 2014
To investigate psychophysical thresholds in Stargardt disease with the full-field stimulus test (FST). Visual acuity, spectral domain optical coherence tomography, full-field electroretinogram, and FST measurements were made in 1 eye of 24 patients with Stargardt disease. Dark-adapted rod FST thresholds were measured with short-wavelength stimuli, and cone FST thresholds were ...
Cichaczewski Ederson E Universidade Tecnológica Federal do Paraná, Curitiba, PR, - - 2014
Tremor in essential tremor (ET) and Parkinson's disease (PD) usually present specific electrophysiologic profiles, however amplitude and frequency may have wide variations. Objective: To present the electrophysiologic findings in PD and ET. Method: Patients were assessed at rest, with posture and action. Seventeen patients with ET and 62 with PD ...
Mellor Fiona E FE Institute for Musculoskeletal Research and Clinical Implementation, Anglo-European College of Chiropractic, Parkwood Road, Bournemouth, BH5 2DF, - - 2014
Identifying biomechanical subgroups in chronic, non-specific low back pain (CNSLBP) populations from inter-vertebral displacements has proven elusive. Quantitative fluoroscopy (QF) has excellent repeatability and provides continuous standardised inter-vertebral kinematic data from fluoroscopic sequences allowing assessment of mid-range motion. The aim of this study was to determine whether proportional continuous IV ...
Tarita-Nistor Luminita L *PhD †MD Vision Science Research Program, Toronto Western Hospital, Toronto, Ontario, Canada (all authors); Centre for Vision Research, York University, Toronto, Ontario, Canada (LT-N, MJS, EGG); and Department of Ophthalmology and Vision Sciences, University of Toronto, Toronto, Ontario, Canada (SH, MJS, SNM, - - 2014
Large moving scenes can induce a sensation of self-motion in stationary observers. This illusion is called "vection." Glaucoma progressively affects the functioning of peripheral vision, which plays an important role in inducing vection. It is still not known whether vection can be induced in these patients and, if it can, ...
Priesol Adrian J AJ Department of Otology & Laryngology, Harvard Medical School, Boston, Massachusetts, - - 2014
We measured vestibular perceptual thresholds in patients with idiopathic bilateral vestibulopathy to assess the distribution of peripheral vestibular damage in this disorder. Thresholds were measured with standard psychometric techniques in 4 patients and compared with thresholds in normal subjects and patients with completely absent peripheral vestibular function. Motion paradigms included ...
Lai Wei-Chih - - 2014
We have demonstrated a gallium nitride (GaN)-based green light-emitting diode (LED) with graphene/indium tin oxide (ITO) transparent contact. The ohmic characteristic of the p-GaN and graphene/ITO contact could be preformed by annealing at 500 °C for 5 min. The specific contact resistance of p-GaN/graphene/ITO (3.72E-3 Ω·cm<sup>2</sup>) is one order less ...
Tudor G Samuel J GS Department of Medical Physics and Clinical Engineering, Cambridge University Hospitals NHS Foundation Trust, Box 152, Addenbrooke's Hospital, Hills Road, Cambridge CB2 0QQ, United Kingdom and Department of Oncology, Cambridge University, Cambridge CB2 0QQ, United - - 2014
Dose differences from those planned can occur due to the respiratory interplay effect on helical tomotherapy. The authors present a technique to calculate single-fraction doses in three-dimensions resulting from craniocaudal motion applied to a patient CT set. The technique is applied to phantom and patient plans using patient respiratory traces. ...
Chang Yen-Liang YL Department of Otolaryngology Head and Neck Surgery, Cathay General Hospital, Taipei, Taiwan; School of Medicine, Fu Jen Catholic University, Taipei, - - 2014
Acoustic analysis is often used in speech evaluation but seldom for the evaluation of oral prostheses designed for reconstruction of surgical defect. This study aimed to introduce the application of acoustic analysis for patients with velopharyngeal insufficiency (VPI) due to oral surgery and rehabilitated with oral speech-aid prostheses. The pre- ...
Iwasaki Shinichi S From the Department of Otolaryngology, Faculty of Medicine (S.I., M.K., Y. Yoshifuji, C.F.), and Educational Physiological Laboratory, Graduate School of Education (Y. Yamamoto, F.T.), The University of Tokyo, - - 2014
To examine the effect of an imperceptible level of galvanic vestibular stimulation (GVS), delivered as zero-mean current noise (noisy GVS), on postural performance in healthy subjects as well as in patients with bilateral peripheral vestibular dysfunction. White noise GVS with an amplitude ranging from 0 to 1,000 μA was applied ...
Pineles Stacy L - - 2014
Patients with strabismus often complain of difficulty navigating through visually stimulating environments without clear explanation for this symptom. Binocular summation (BiS), defined as the superiority of binocular over monocular viewing on visual threshold tasks, is decreased in conditions that cause large interocular differences in visual acuity, but is not well ...
Breine Bastiaan B 1Department of Movement and Sports Sciences, Ghent University, Ghent, Belgium 2Exeter Research, Inc., Brentwood, - - 2014
This study assessed initial foot contact patterns (IFCP) in a large group of distance runners and the effect of speed on the IFCP. We determined the strike index, to classify the runners in IFCP groups, at 4 speeds (3.2, 4.1, 5.1, 6.2 m[BULLET OPERATOR]s) by measuring center of pressure (COP) ...
Khoo Hui Ming HM Department of Neurosurgery, Osaka University Graduate School of Medicine, Osaka, - - 2014
Low-frequency, bilateral stimulation of the subthalamic nucleus can improve axial symptoms of advanced Parkinson's disease (PD), but it is not particularly effective for segmental symptoms. The optimal contacts for low-frequency (60 Hz) and high-frequency (130 Hz) single monopolar stimulation were determined. Then, in a randomized, double-blind, prospective crossover manner, 60-Hz ...
Williams David M DM Department of Environmental and Forest Biology, State University of New York College of Environmental Science and Forestry, Syracuse, New York, United States of - - 2014
Contacts between hosts are essential for transmission of many infectious agents. Understanding how contacts, and thus transmission rates, occur in space and time is critical to effectively responding to disease outbreaks in free-ranging animal populations. Contacts between animals in the wild are often difficult to observe or measure directly. Instead, ...
Alvarado-Rojas C C Centre de Recherche de l'Institut du Cerveau et de la Moelle épinière (CRICM) INSERM UMRS 975 - CNRS UMR 7225-UPMC, Hôpital de la Pitié-Salpêtrière, Paris, - - 2014
Recent evidence suggests that some seizures are preceded by preictal changes that start from minutes to hours before an ictal event. Nevertheless an adequate statistical evaluation in a large database of continuous multiday recordings is still missing. Here, we investigated the existence of preictal changes in long-term intracranial recordings from ...
Bonfiglio Luca L Department of Translational Research on New Technologies in Medicine and Surgery, School of Physical Medicine and Rehabilitation, University of Pisa, Pisa, - - 2014
Recently, the cortical source of blink-related delta oscillations (delta BROs) in resting healthy subjects has been localized in the posterior cingulate cortex/precuneus (PCC/PCu), one of the main core-hubs of the default-mode network. This has been interpreted as the electrophysiological signature of the automatic monitoring of the surrounding environment while subjects ...
Ito Yuji Y Graduate School of Engineering, Nagoya University, Furo-cho, Chikusa-ku, Nagoya 464-8603, Japan. - - 2014
A new method is proposed to estimate the contact region between a sensor and an object using a deformable tactile sensor. The sensor consists of a charge-coupled device (CCD) camera, light-emitting diode (LED) lights and a deformable touchpad. The sensor can obtain a variety of tactile information, such as the ...
Zdero Radovan R Department of Mechanical and Industrial Engineering, Ryerson University, Toronto, ON, Canada, M5B-2K3 ; Martin Orthopaedic Biomechanics Lab, St. Michael's Hospital, Toronto, ON, Canada, - - 2014
Ultra high molecular weight polyethylene (UHMWPE) is a material commonly used in total hip and knee joint replacements. Numerous studies have assessed the effect of its viscoelastic properties on phenomena such as creep, stress relaxation, and tensile stress. However, these investigations either use the complex 3D geometries of total hip ...
Tomassini Alessandro A Sobell Department of Motor Neuroscience and Movement Disorders, Institute of Neurology, University College London, UK Centre for Applied Vision Research, City University, London, - - 2014
The tilt illusion is a compelling example of contextual influence exerted by an oriented surround on a target's perceived orientation. A vertical target appears to be tilted away from a 15° oriented surround but appears to be tilted toward a 75° tilted surround. We tested the claim that these biases ...
Tomassini Alessandro A Sobell Department of Motor Neuroscience and Movement Disorders, Institute of Neurology, University College London, London, United Kingdom; Optometry Division, Applied Vision Research Centre, City University London, London, United - - 2014
Contextual information can have a huge impact on our sensory experience. The tilt illusion is a classic example of contextual influence exerted by an oriented surround on a target's perceived orientation. Traditionally, the tilt illusion has been described as the outcome of inhibition between cortical neurons with adjacent receptive fields ...
Strother Lars L Brain and Mind Institute, University of Western Ontario London, ON, Canada ; Cognitive and Brain Sciences Program, Department of Psychology, University of Nevada Reno Reno, NV, - - 2014
Contour integration is a fundamental form of perceptual organization. We introduce a new method of studying the mechanisms responsible for contour integration. This method capitalizes on the perceptual persistence of contours under conditions of impending camouflage. Observers viewed arrays of randomly arranged line segments upon which circular contours comprised of ...
McDonald Colin P CP Department of Orthopedics, Herrick Davis Motion Analysis Laboratory, - - 2013
Object Cervical arthroplasty with an artificial disc (AD) has emerged as an alternative to anterior cervical discectomy and fusion (ACDF) for the management of cervical spondylosis. This study aims to provide 3D motion analysis data comparing patients after ACDF and AD replacement. Methods Ten patients who underwent C5-6 ACDF and ...
Fouquet Marina Lang ML Santa Casa de Misericórdia de São Paul, Hospital Irmandade, São PauloSP, Brazil, Discipline of Head and Neck Surgery, Hospital Irmandade Santa Casa de Misericórdia de São Paulo- São Paulo (SP), - - 2013
The primary purpose of this study was to assess the relationship between pharyngoesophageal segment (PES) configuration and narrow-band spectrogram of tracheoesophageal voices. This study included 30 total laryngectomees tracheoesophageal speakers. Patients were assessed by videofluoroscopy (VF), during deglutition and voicing, and the vowel /a/ was recorded for spectrographic analysis. The ...
Wang Hongsheng H Department of Biomechanics, Hospital for Special Surgery, New York, NY 10021, United - - 2013
The spatial distribution and pattern of local contact stresses within the knee joint during activities of daily living have not been fully investigated. The objective of this study was to determine if common contact stress patterns exist on the tibial plateaus of human knees during simulated gait. To test this ...
Dowdell Stephen - - 2013
Purpose: To compare motion effects in intensity modulated proton therapy (IMPT) lung treatments with different levels of intensity modulation.Methods: Spot scanning IMPT treatment plans were generated for ten lung cancer patients for 2.5Gy(RBE) and 12Gy(RBE) fractions and two distinct energy-dependent spot sizes (σ ∼8-17 mm and ∼2-4 mm). IMPT plans ...
Janeček V V Physique et Mécanique des Milieux Hétérogènes, UMR 7636 ESPCI-CNRS-Université Paris-Diderot-Université P. M. Curie, 10 rue Vauquelin, 75005 Paris, France and ESEME, Service des Basses Températures, UMR-E CEA/UJF-Grenoble 1, INAC, Grenoble, - - 2013
Interfacial flows close to a moving contact line are inherently multiscale. The shape of the interface and the flow at meso- and macroscopic scales inherit an apparent interface slope and a regularization length, both named after Voinov, from the microscopic inner region. Here, we solve the inner problem associated with ...
Santos-Concejero Jordan - - 2013
The main purpose of this study was to investigate the relationship between a novel biomechanical variable, the stride angle, and running economy (RE) in a homogenous group of long-distance athletes. Twenty-five well-trained male runners completed 4 minute running stages on a treadmill at different set velocities. During the test, biomechanical ...
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