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Morteza Behnam, Hossein Pourghassem
BACKGROUND: EEG signal analysis of pediatric patients plays vital role for making a decision to intervene in presurgical stages. NEW METHOD: In this paper, an offline seizure detection algorithm based on definition of a seizure-specific wavelet (Seizlet) is presented. After designing the Seizlet, by forming cone of influence map of the EEG signal, four types of layouts are analytically designed that are called Seizure Modulus Maximas Patterns (SMMP). By mapping CorrEntropy Induced Metric (CIM) series, four structural features based on least square estimation of fitted non-tilt conic ellipse are extracted that are called CorrEntropy Ellipse Features (CEF)...
October 18, 2016: Journal of Neuroscience Methods
Na Jin Seo, Mojtaba F Fathi, Pilwon Hur, Vincent Crocher
STUDY DESIGN: Repeated measures. INTRODUCTION: The Kinect (Microsoft, Redmond, WA) is widely used for telerehabilitation applications including rehabilitation games and assessment. PURPOSE OF THE STUDY: To determine effects of the Kinect location relative to a person on measurement accuracy of upper limb joint angles. METHODS: Kinect error was computed as difference in the upper limb joint range of motion (ROM) during target reaching motion, from the Kinect vs 3D Investigator Motion Capture System (NDI, Waterloo, Ontario, Canada), and compared across 9 Kinect locations...
October 18, 2016: Journal of Hand Therapy: Official Journal of the American Society of Hand Therapists
Dayana P Rosa, John D Borstad, Lívia S Pogetti, Paula R Camargo
STUDY DESIGN: Parallel-group intervention with repeated measures. INTRODUCTION: Shortening of the pectoralis minor (PM) may contribute to alterations in scapular kinematics. PURPOSE OF THE STUDY: To evaluate the effects of a stretching protocol on function, muscle length, and scapular kinematics in subjects with and without shoulder pain. METHODS: A sample of 25 patients with shoulder pain and 25 healthy subjects with PM tightness performed a daily stretching protocol for 6 weeks...
October 18, 2016: Journal of Hand Therapy: Official Journal of the American Society of Hand Therapists
J L Vilas, J Navas, J Gómez-Blanco, J M de la Rosa-Trevín, R Melero, I Peschiera, I Ferlenghi, J Cuenca, R Marabini, J M Carazo, J Vargas, C O S Sorzano
Random conical tilt (RCT) and orthogonal tilt reconstruction (OTR) are two remarkable methods for reconstructing the three-dimensional structure of macromolecules at low resolution. These techniques use two images at two different sample tilts. One of the most demanding steps in these methods at the image processing level is to identify corresponding particles on both micrographs, and manual or semiautomatic matching methods are usually used. Here we present an approach to solve this bottleneck with a fully automatic method for assigning particle tilt pairs...
October 18, 2016: Journal of Structural Biology
Jae Hoon Lee, Duke Whan Chung, Jong Hun Baek, Young Jun Kim, So Young Park
Background Although proximal fibular flaps have been widely applied in wrist arthroplasty, controversy remains regarding which side of the proximal fibula is better for reconstruction of the distal radius. If the articular surface of the proximal fibula shows dorsal tilting, the ipsilateral (right) proximal fibula should be harvested in right wrist arthroplasty because the articular surface of the distal radius normally has volar tilt. This study investigated anatomical similarities between the proximal fibular articular surface and the distal radius articular surface based on morphologic analysis of the proximal fibula using computed tomography (CT)...
October 21, 2016: Journal of Reconstructive Microsurgery
Devin Ganesh, Ben Service, Brian Zirgibel, Kenneth Koval
OBJECTIVES: To assess the utility of the dorsal tangential view (DTV) in detecting intraoperative dorsal screw penetration in distal radius fractures treated with volar locked plating. DESIGN: Retrospective cohort study. SETTING: Academic level 1 trauma center. PATIENTS/PARTICIPANTS: Skeletally mature patients where open reduction internal fixation with volar locked plating was the definitive treatment. A total of twenty-six patients were evaluated...
November 2016: Journal of Orthopaedic Trauma
Alexander Mook, Jürgen Henk, Ingrid Mertig
The dispersion relations of magnons in ferromagnetic pyrochlores with Dzyaloshinskii-Moriya interaction are shown to possess Weyl points, i. e., pairs of topologically nontrivial crossings of two magnon branches with opposite topological charge. As a consequence of their topological nature, their projections onto a surface are connected by magnon arcs, thereby resembling closely Fermi arcs of electronic Weyl semimetals. On top of this, the positions of the Weyl points in reciprocal space can be tuned widely by an external magnetic field: rotated within the surface plane, the Weyl points and magnon arcs are rotated as well; tilting the magnetic field out of plane shifts the Weyl points toward the center Γ[over ¯] of the surface Brillouin zone...
October 7, 2016: Physical Review Letters
Hiedar Alyami, Ali M Albarrati
OBJECTIVE: This study's objective was to discover whether a difference exists in four postural angles while performing a typing task on a laptop and a desktop computer. METHOD: Twenty healthy participants performed a 5-min typing task on each computer. RESULTS: Statistically significant differences for all angles were found when comparing sitting at the desktop computer with sitting at the laptop. Neck angle (p < .0005), head tilt (p < ...
November 2016: American Journal of Occupational Therapy: Official Publication of the American Occupational Therapy Association
Alexander A Theologis, Gregory M Mundis, Stacie Nguyen, David O Okonkwo, Praveen V Mummaneni, Justin S Smith, Christopher I Shaffrey, Richard Fessler, Shay Bess, Frank Schwab, Bassel G Diebo, Douglas Burton, Robert Hart, Vedat Deviren, Christopher Ames
OBJECTIVE The aim of this study was to evaluate the utility of supplementing long thoracolumbar posterior instrumented fusion (posterior spinal fusion, PSF) with lateral interbody fusion (LIF) of the lumbar/thoracolumbar coronal curve apex in adult spinal deformity (ASD). METHODS Two multicenter databases were evaluated. Adults who had undergone multilevel LIF of the coronal curve apex in addition to PSF with L5-S1 interbody fusion (LS+Apex group) were matched by number of posterior levels fused with patients who had undergone PSF with L5-S1 interbody fusion without LIF (LS-Only group)...
October 21, 2016: Journal of Neurosurgery. Spine
Panos Papaspyridakos, Yong-Jeong Kim, Matthew Finkelman, Khaled El-Rafie, Hans-Peter Weber
PURPOSE: The primary aim of this study was to assess the accuracy of different splinting materials to make implant cast verification jigs. The secondary aim was to assess the effect of 20° implant angulation on the accuracy of casts. MATERIALS AND METHODS: An edentulous mandibular arch with five internal connection tissue level implants served as control. The three implants in the anterior region were parallel to each other and the two implants in the posterior region were distally tilted 20° bilaterally...
October 21, 2016: Journal of Esthetic and Restorative Dentistry
Nam-Su Chung, Chang-Hoon Jeon, Han-Dong Lee, Suk-Hyeong Won
STUDY DESIGN: This was a radiographic validity and reliability study. OBJECTIVE: We assessed the validity and reliability of measurements made on standing lateral lumbar radiographs, compared with lateral whole-spine radiographs, for evaluating spinopelvic parameters and lumbar lordosis (LL). SUMMARY OF BACKGROUND DATA: A lateral whole-spine radiograph is the gold standard image for measurement of spinopelvic parameters. However, little evidence is available on the reliability of measurements made on such radiograph...
October 19, 2016: Clinical Spine Surgery
Armando Lopes, Paulo Maló, Miguel de Araújo Nobre, Elena Sánchez-Fernández, Inês Gravito
BACKGROUND: There is a necessity of studies documenting the long-term outcome of full-arch flapless rehabilitations. PURPOSE: To evaluate the 7 years implant and prosthesis survival rate and 5-years marginal bone loss of full-arch fixed prosthetic rehabilitations supported by implants in immediate function with the All-on-4(®) treatment concept using a computer guided surgical protocol (NobelGuide(®) , Nobel Biocare). MATERIALS AND METHODS: This retrospective clinical study included 111 edentulous patients (n = 53 bruxers; n = 21 smokers; n = 59 systemically compromised), rehabilitated between February 2005 and November 2010 with 532 implants with the All-on-4(®) treatment concept using NobelGuide(®) ...
October 18, 2016: Clinical Implant Dentistry and related Research
Dafni Krystallidou, Peter Thompson
Visual input powerfully modulates the dynamics of tactile orientation perception. This study investigated the transfer of the tilt aftereffect (TAE) from vision to somatosensation. In a visual tilt adaptation paradigm, participants were exposed to clockwise or anticlockwise visual tilt, followed by three brief tactile two-point stimuli delivered on their forehead. In a two-alternative forced choice task, participants had to indicate whether the haptic stimulus was tilted to the right or left. Repeated exposure to oriented visual gratings produced a tactile TAE, such that the subsequent tactile stimuli appeared tilted toward the opposite direction...
September 2016: I-Perception
David P McGovern, Kevin S Walsh, Jason Bell, Fiona N Newell
Both spatial and temporal context influence our perception of visual stimuli. For instance, both nearby moving stimuli and recently viewed motion can lead to biases in the perceived direction of a moving stimulus. Due to similarities in the spatial tuning properties of these spatial and temporal context-dependent effects, it is often assumed that they share a functional goal in motion processing and arise from common neural mechanisms. However, the psychophysical evidence concerning this assumption is inconsistent...
October 17, 2016: Vision Research
Kristin McLeod, Samuel Wall, Ida Skrinde Leren, Jørg Saberniak, Kristina Hermann Haugaa
BACKGROUND: Altered right ventricular structure is an important feature of Arrhythmogenic Right Ventricular Cardiomyopathy (ARVC), but is challenging to quantify objectively. The aim of this study was to go beyond ventricular volumes and diameters and to explore if the shape of the right and left ventricles could be assessed and related to clinical measures. We used quantifiable computational methods to automatically identify and analyse malformations in ARVC patients from Cardiovascular Magnetic Resonance (CMR) images...
October 14, 2016: Journal of Cardiovascular Magnetic Resonance
Youngkyo Kwun, Gyule Han, Yoon-Jung Choy, Jong Chul Han, Changwon Kee
PURPOSE OF THE STUDY: The purpose of the study was to evaluate the optic disc characteristics associated with visual field (VF) progression in normal tension glaucoma (NTG) eyes with tilted optic discs. METHODS: Sixty-six eyes of 66 NTG patients with tilted optic disc were included in this cross-sectional study, who were examined by at least 5 Humphrey 30-2 VFs. Glaucomatous VF progression was evaluated using pointwise linear regression. Optic nerve heads were scanned with enhanced-depth imaging optical coherence tomography (EDI-OCT), and evaluated for the focal lamina cribrosa (LC) defects and LC thicknesses...
October 14, 2016: Journal of Glaucoma
Karl Stoffel, Ivan Zderic, Florian Gras, Christoph Sommer, Ursula Eberli, David Mueller, Martin Oswald, Boyko Gueorguiev
OBJECTIVES: To evaluate the biomechanical performance of Femoral Neck System (FNS) in comparison to established methods for fixation of femoral neck fractures in a cadaveric model. METHODS: Twenty pairs of fresh-frozen human cadaveric femora were instrumented either with DHS-Screw, DHS-Blade, 3CS or with FNS in a partially paired design. The specimens were randomized to two paired treatment groups based on the BMD, namely DHS-Screw/DHS-Blade and FNS/3CS. A reduced unstable femoral neck fracture with postero-caudal comminution, AO/OTA 31-B2...
October 13, 2016: Journal of Orthopaedic Trauma
Elaheh Khozeimeh Sarbisheh, Jose Esteban Flores, Jianfeng Zhu, Jens Müller
A mixture of cis/trans isomers of phospha[1]ferrocenophanes equipped with one iPr group at the α position to the bridging PhP moiety was prepared. Both isomers (cis-4 and trans-4) were obtained as racemates and could be separated so that their thermal properties were investigated individually. The molecular structure of cis-4 was determined by single-crystal X-ray analysis showing a tilt angle α=26.35(8)°. Interconversion between both isomers occurred in the melt at elevated temperatures and revealed that the trans isomer is thermodynamically more stable...
October 18, 2016: Chemistry: a European Journal
Bugra Ayan, Adem Ozcelik, Hunter Bachman, Shi-Yang Tang, Yuliang Xie, Mengxi Wu, Peng Li, Tony Jun Huang
On-chip microparticle and cell coating technologies enable a myriad of applications in chemistry, engineering, and medicine. Current microfluidic coating technologies often rely on magnetic labeling and concurrent deflection of particles across laminar streams of chemicals. Herein, we introduce an acoustofluidic approach for microparticle and cell coating by implementing tilted-angle standing surface acoustic waves (taSSAWs) into microchannels with multiple inlets. The primary acoustic radiation force generated by the taSSAW field was exploited in order to migrate the particles across the microchannel through multiple laminar streams, which contained the buffer and coating chemicals...
October 18, 2016: Lab on a Chip
Oleg Mamontov, Mikhail Bogachev, Andrey Kozlenoc
OBJECTIVE: To assess the autonomic regulation in patients with various circadian blood pressure profile (CBPP) anomalies that persisted despite of combined antihypertensive therapy. DESIGN AND METHOD: We studied 114 hypertensives aged 56,8 ± 17,9 years receiving combined antihypertensive therapy divided into two groups, with adequate (n = 61) and inadequate (n = 53) CBPP. Groups were comparable in terms of age and number of drugs intake per day (2.8 ± 1...
September 2016: Journal of Hypertension
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