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https://www.readbyqxmd.com/read/28335540/a-vehicle-steering-recognition-system-based-on-low-cost-smartphone-sensors
#1
Xinhua Liu, Huafeng Mei, Huachang Lu, Hailan Kuang, Xiaolin Ma
Recognizing how a vehicle is steered and then alerting drivers in real time is of utmost importance to the vehicle and driver's safety, since fatal accidents are often caused by dangerous vehicle maneuvers, such as rapid turns, fast lane-changes, etc. Existing solutions using video or in-vehicle sensors have been employed to identify dangerous vehicle maneuvers, but these methods are subject to the effects of the environmental elements or the hardware is very costly. In the mobile computing era, smartphones have become key tools to develop innovative mobile context-aware systems...
March 20, 2017: Sensors
https://www.readbyqxmd.com/read/28333040/rigid-motion-correction-of-dual-opposed-planar-projections-in-single-photon-imaging
#2
Georgios I Angelis, William Ryder, John Gillam, Frederic Boisson, Andre Kyme, Roger Fulton, Steven Meikle, Peter Kench
Awake and/or freely moving small animal single photon emission imaging allows the continuous study of molecules exhibiting slow kinetics without the need to restrain or anaesthetise the animals. Estimating motion free projections in freely moving small animal planar imaging can be considered as a limited angle tomography problem, except that we wish to estimate the 2D planar projections rather than the 3D volume, where the angular sampling in all three axes depends on the rotational motion of the animal. In this study, we hypothesise that the motion corrected planar projections estimated by reconstructing an estimate of the 3D volume using an iterative motion compensating reconstruction algorithm and integrating it along the projection path, will closely match the true, motion-less, planar distribution regardless of the object motion...
March 23, 2017: Physics in Medicine and Biology
https://www.readbyqxmd.com/read/28332863/male-and-female-worldsid-and-post-mortem-human-subject-responses-in-full-scale-vehicle-tests
#3
Narayan Yoganandan, John Humm, Frank Pintar, Heather Rhule, Kevin Moorhouse, Brian Suntay, Jim Stricklin, Rodney Rudd, Matthew Craig
Structured ABSTRACT Objective: To compare the responses of male and female WorldSID dummies with post mortem human subject (PMHS) responses in full-scale vehicle tests. METHODS: Tests were conducted according to the FMVSS-214 protocols and using the United States Side impact New Car Assessment Program change in velocity to match PMHS experiments, published earlier. Moving deformable barrier (MDB) tests were conducted with the male and female surrogates in the left front and left rear seats...
March 23, 2017: Traffic Injury Prevention
https://www.readbyqxmd.com/read/28332519/simultaneous-tracking-of-spin-angle-and-amplitude-beyond-classical-limits
#4
Giorgio Colangelo, Ferran Martin Ciurana, Lorena C Bianchet, Robert J Sewell, Morgan W Mitchell
Measurement of spin precession is central to extreme sensing in physics, geophysics, chemistry, nanotechnology and neuroscience, and underlies magnetic resonance spectroscopy. Because there is no spin-angle operator, any measurement of spin precession is necessarily indirect, for example, it may be inferred from spin projectors at different times. Such projectors do not commute, and so quantum measurement back-action-the random change in a quantum state due to measurement-necessarily enters the spin measurement record, introducing errors and limiting sensitivity...
March 22, 2017: Nature
https://www.readbyqxmd.com/read/28332211/a-multi-channel-block-matching-denoising-algorithm-for-spectral-photon-counting-ct-images
#5
Adam P Harrison, Ziyue Xu, David A Bluemke, Amir Pourmorteza, Daniel J Mollura
PURPOSE: We present a denoising algorithm designed for a whole-body prototype photon-counting computed tomography (PCCT) scanner with up to 4 energy thresholds and associated energy-binned images. METHODS: Spectral PCCT images can exhibit low signal to noise ratios (SNRs) due to the limited photon counts in each simultaneously-acquired energy bin. To help address this, our denoising method exploits the correlation and exact alignment between energy bins, adapting the highly-effective block-matching 3D (BM3D) denoising algorithm for PCCT...
March 23, 2017: Medical Physics
https://www.readbyqxmd.com/read/28330579/vertical-ramus-elongation-and-mandibular-advancement-by-endobuccal-approach-presentation-of-a-new-osteotomy-technique
#6
F Grimaud, H Bertin, F Fauvel, P Corre, J-P Perrin
INTRODUCTION: Several surgical procedures have been proposed for the treatment of hyperdivergent dentoskeletal deformities. We propose a new osteotomy technique allowing for lengthening and advancement of the mandibular ramus by intra-oral approach. SURGICAL PROCEDURE: This technique differs from the conventional sagittal split osteotomyin that which the anterior osteotomy line is not continued until the basilar edge but stopped 5-6mm above it. Cutting of the pterygomasseteric sling is systematically done allowing for the lowering of the mandibular angle...
February 2017: J Stomatol Oral Maxillofac Surg
https://www.readbyqxmd.com/read/28330341/wetting-at-the-nanoscale-a-molecular-dynamics-study
#7
Mohammad Khalkhali, Nasser Kazemi, Hao Zhang, Qingxia Liu
A novel method to calculate the solid-liquid contact angle is introduced in this study. Using the 3D configuration of a liquid droplet on a solid surface, this method calculates the contact angle along the contact line and provides an angular distribution. Although this method uses the 3D configuration of liquid droplets, it does not require the calculation of the 3D density profile to identify the boundaries of the droplet. This decreases the computational cost of the contact angle calculation greatly. Moreover, no presumption about the shape of the liquid droplet is needed when using the method introduced in this study...
March 21, 2017: Journal of Chemical Physics
https://www.readbyqxmd.com/read/28329526/chronic-granulomatous-disease-as-a-risk-factor-for-cutaneous-lupus-in-childhood
#8
Sandrina Carvalho, Susana Machado, Rita Sampaio, Margarida Guedes, Júlia Vasconcelos, Diogo Semedo, Manuela Selores
Chronic granulomatous disease (CGD) is a primaryimmunodeficiency disorder that affects the phagocyticcells of the innate immune system. It is characterizedby recurrent or persistent infections with granulomaformation. Lupus-like lesions have been reported incarriers of CGD and less frequently, in patients withCGD. Immunological study in these patients areusually negative. We describe the case of an 8-yearoldboy with CGD who developed chronic and acutecutaneous lupus erythematous with angular cheilitis,oral ulcers, Raynaud phenomenon, and positiveserologies for antinuclear, anticentromere, and anti-Saccharomyces cerevisiae antibodies...
March 15, 2017: Dermatology Online Journal
https://www.readbyqxmd.com/read/28328939/multimodal-mr-imaging-reveals-large-scale-structural-and-functional-connectivity-changes-in-profound-early-blindness
#9
Corinna M Bauer, Gabriella V Hirsch, Lauren Zajac, Bang-Bon Koo, Olivier Collignon, Lotfi B Merabet
In the setting of profound ocular blindness, numerous lines of evidence demonstrate the existence of dramatic anatomical and functional changes within the brain. However, previous studies based on a variety of distinct measures have often provided inconsistent findings. To help reconcile this issue, we used a multimodal magnetic resonance (MR)-based imaging approach to provide complementary structural and functional information regarding this neuroplastic reorganization. This included gray matter structural morphometry, high angular resolution diffusion imaging (HARDI) of white matter connectivity and integrity, and resting state functional connectivity MRI (rsfcMRI) analysis...
2017: PloS One
https://www.readbyqxmd.com/read/28328598/simple-percutaneous-transbuccal-approach-for-management-of-mandibular-angular-fracture
#10
Mohammad Waheed El-Anwar, Ahmed Hassan Sweed
OBJECTIVE: To describe a relatively simple, easy, and safe technique for open reduction and internal fixation of the mandibular angle fracture using the combined modified percutaneous and oral approach with no special instrumentation. PATIENTS AND METHODS: This study was carried out on 10 patients who had traumatic mandibular angle fractures. All patients were managed by open reduction and internal fixation. Intraoral exposure and reduction of the fracture was performed through the gingivolabial incision...
March 21, 2017: Journal of Craniofacial Surgery
https://www.readbyqxmd.com/read/28327611/biomimetic-surface-structuring-using-cylindrical-vector-femtosecond-laser-beams
#11
Evangelos Skoulas, Alexandra Manousaki, Costas Fotakis, Emmanuel Stratakis
We report on a new, single-step and scalable method to fabricate highly ordered, multi-directional and complex surface structures that mimic the unique morphological features of certain species found in nature. Biomimetic surface structuring was realized by exploiting the unique and versatile angular profile and the electric field symmetry of cylindrical vector (CV) femtosecond (fs) laser beams. It is shown that, highly controllable, periodic structures exhibiting sizes at nano-, micro- and dual- micro/nano scales can be directly written on Ni upon line and large area scanning with radial and azimuthal polarization beams...
March 22, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28327461/muscle-strength-is-impaired-in-men-but-not-in-women-living-with-hiv-taking-antiretroviral-therapy
#12
Vitor Hf Oliveira, Susana L Wiechmann, Argéria Ms Narciso, Allison R Webel, Rafael Deminice
BACKGROUND: There is evidence that HIV Antiretroviral Therapy adverse effects may be sex-dependent, but data examing these sex differences in muscle strength is scarce. Our aim was to compare dynamic and isokinetic parameters of muscle strength between HIV-infected men and women to HIV-uninfected subjects. METHODS: In this cross-sectional study, muscle strength was evaluated in 44 HIV-infected (20 men, 24 women) and 25 age-, race- and body mass index-matched HIV-uninfected subjects (11 men, 14 women)...
March 22, 2017: Antiviral Therapy
https://www.readbyqxmd.com/read/28326010/impact-of-resveratrol-on-glucose-control-hippocampal-structure-and-connectivity-and-memory-performance-in-patients-with-mild-cognitive-impairment
#13
Theresa Köbe, A Veronica Witte, Ariane Schnelle, Valentina A Tesky, Johannes Pantel, Jan-Philipp Schuchardt, Andreas Hahn, Jens Bohlken, Ulrike Grittner, Agnes Flöel
In healthy older adults, resveratrol supplementation has been shown to improve long-term glucose control, resting-state functional connectivity (RSFC) of the hippocampus, and memory function. Here, we aimed to investigate if these beneficial effects extend to individuals at high-risk for dementia, i.e., patients with mild cognitive impairment (MCI). In a randomized, double-blind interventional study, 40 well-characterized patients with MCI (21 females; 50-80 years) completed 26 weeks of resveratrol (200 mg/d; n = 18) or placebo (1,015 mg/d olive oil; n = 22) intake...
2017: Frontiers in Neuroscience
https://www.readbyqxmd.com/read/28324977/a-novel-method-to-assess-angle-sensor-performance-for-wearable-exoskeletal-joint-kinematics
#14
Nicholas B Bolus, Geza F Kogler, Omer T Inan
Full range of motion (ROM) at a joint is necessary for efficient and adaptive movement; as such, it is an essential clinical evaluation measure for assessing an individual's motor function, which can be affected by any number of musculoskeletal injuries and neuropathies. Measurement of joint ROM in the clinic has classically been accomplished statically through the use of a manual goniometer. More recent efforts in the fields of prosthetics and orthotics have demonstrated the potential utility of wearable systems (e...
August 2016: Conference Proceedings: Annual International Conference of the IEEE Engineering in Medicine and Biology Society
https://www.readbyqxmd.com/read/28324957/evaluation-of-skills-in-swing-technique-in-classical-japanese-swordsmanship-using-sensors
#15
S Okamoto
In this study, we analyzed the swing motions of more experienced practitioner and new practitioner of iaido players by using tri-axial acceleration sensor and gyro sensor. Iaido is a modern Japanese martial art/sport. In this way, the acceleration and gyro sensor measurement enabled detailed motion information at the installation points to be displayed in a short time, thus making it possible to easily extract the objective problems. Although it was not possible to confirm by the acceleration and angular velocity measurements the detailed motion of the entire body as obtained in the 2D motion analysis with a high-speed camera, it was confirmed that the acceleration and gyro sensor is an evaluation means that can be installed easily and can provide the exercise information in a short time as an objective index...
August 2016: Conference Proceedings: Annual International Conference of the IEEE Engineering in Medicine and Biology Society
https://www.readbyqxmd.com/read/28324620/exposure-to-electromagnetic-fields-from-smart-utility-meters-in-gb-part-i-laboratory-measurements
#16
Azadeh Peyman, Darren Addison, Terry Mee, Cristian Goiceanu, Myron Maslanyj, Simon Mann
Laboratory measurements of electric fields have been carried out around examples of smart meter devices used in Great Britain. The aim was to quantify exposure of people to radiofrequency signals emitted from smart meter devices operating at 2.4 GHz, and then to compare this with international (ICNIRP) health-related guidelines and with exposures from other telecommunication sources such as mobile phones and Wi-Fi devices. The angular distribution of the electric fields from a sample of 39 smart meter devices was measured in a controlled laboratory environment...
March 21, 2017: Bioelectromagnetics
https://www.readbyqxmd.com/read/28324151/higher-hamstring-to-quadriceps-isokinetic-strength-ratio-during-the-first-post-operative-months-in-patients-with-quadriceps-tendon-compared-to-hamstring-tendon-graft-following-acl-reconstruction
#17
Felix Fischer, Christian Fink, Elmar Herbst, Christian Hoser, Caroline Hepperger, Cornelia Blank, Peter Gföller
PURPOSE: The aim of this study was to compare isokinetic quadriceps and hamstring muscle strength in patients following anterior cruciate ligament (ACL) reconstruction who received either hamstring (HT) or quadriceps (QT) tendon autografts at two time intervals within the first year after surgery. METHODS: One hundred twenty-four patients, 81 males (age 22.0 ± 6.2 years) and 43 females (age 20.9 ± 8.7 years), participated in this study. ACL reconstruction was performed with either quadriceps tendon autografts (QT; n = 61) or hamstring tendon autografts (HT; n = 63)...
March 21, 2017: Knee Surgery, Sports Traumatology, Arthroscopy: Official Journal of the ESSKA
https://www.readbyqxmd.com/read/28323668/mindfulness-meditation-training-and-executive-control-network-resting-state-functional-connectivity-a-randomized-controlled-trial
#18
Adrienne A Taren, Peter J Gianaros, Carol M Greco, Emily K Lindsay, April Fairgrieve, Kirk Warren Brown, Rhonda K Rosen, Jennifer L Ferris, Erica Julson, Anna L Marsland, J David Creswell
OBJECTIVE: Mindfulness meditation training has been previously shown to enhance behavioral measures of executive control (e.g. attention, working memory, cognitive control), but the neural mechanisms underlying these improvements are largely unknown. Here, we test whether mindfulness training interventions foster executive control by strengthening functional connections between dorsolateral prefrontal cortex (dlPFC) - a hub of the executive control network - and frontoparietal regions that coordinate executive function...
March 20, 2017: Psychosomatic Medicine
https://www.readbyqxmd.com/read/28321987/cephalometric-findings-among-children-with-velopharyngeal-dysfunction-following-adenoidectomy-a-retrospective-study
#19
Firas Kassem, Yaniv Ebner, Ben Nageris, Nezar Watted, Ari DeRowe, Ariela Nachmani
OBJECTIVES: To characterize the craniofacial structure by cephalometry, especially the skull base and nasopharyngeal space, in children who underwent adenoidectomy and developed persistent velopharyngeal dysfunction (VPD). DESIGN: Retrospective study. SETTING: Speech and swallowing clinic of a single academic hospital. PARTICIPANTS: 39 children with persistent VPD following adenoidectomy (mean age 8.0±3.6 years) and a control group of 80 healthy children...
March 21, 2017: Clinical Otolaryngology
https://www.readbyqxmd.com/read/28321956/mapping-the-brain-network-of-the-phonological-loop
#20
Costanza Papagno, Alessandro Comi, Marco Riva, Alberto Bizzi, Mirta Vernice, Alessandra Casarotti, Enrica Fava, Lorenzo Bello
The cortical and subcortical neural correlates underlying item and order information in verbal short-term memory (STM) were investigated by means of digit span in 29 patients with direct electrical stimulation during awake surgery for removal of a neoplastic lesion. Stimulation of left Broca's area interfered with span, producing significantly more item than order errors, as compared to the stimulation of the supramarginal/angular gyrus, which also interfered with span but, conversely, produced more order than item errors...
March 21, 2017: Human Brain Mapping
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