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Mobile devices

Matthijs H Spaan, Aline H Vrieling, Pim van de Berg, Pieter U Dijkstra, Helco G van Keeken
STUDY DESIGN: Retrospective cohort study. BACKGROUND: Persons with a lower limb amputation can regain mobility using a prosthetic device. For fast and adequate prescription of prosthetic components, it is necessary to predict the mobility outcome early in rehabilitation. Currently, prosthetic prescription is primarily based on empirical knowledge of rehabilitation professionals. OBJECTIVE: In this study, we explored motor ability tests, to be completed without a prosthetic device, which have predictive value for mobility outcome at the end of rehabilitation...
October 20, 2016: Prosthetics and Orthotics International
Noemí León-Roque, Mohamed Abderrahim, Luis Nuñez-Alejos, Silvia M Arribas, Luis Condezo-Hoyos
Several procedures are currently used to assess fermentation index (FI) of cocoa beans (Theobroma cacao L.) for quality control. However, all of them present several drawbacks. The aim of the present work was to develop and validate a simple image based quantitative procedure, using color measurement and artificial neural network (ANNs). ANN models based on color measurements were tested to predict fermentation index (FI) of fermented cocoa beans. The RGB values were measured from surface and center region of fermented beans in images obtained by camera and desktop scanner...
December 1, 2016: Talanta
Mohsen Asadnia, Matthew Myers, N D Akhavan, Kane O'Donnell, Gilberto A Umana-Membreno, U K Mishra, Brett Nener, Murray Baker, Giacinta Parish
This work presents the first polymer approach to detect metal ions using AlGaN/GaN transistor-based sensor. The sensor utilised an AlGaN/GaN high electron mobility transistor-type structure by functionalising the gate area with a polyvinyl chloride (PVC) based ion selective membrane. Sensors based on this technology are portable, robust and typically highly sensitive to the target analyte; in this case Hg(2+). This sensor showed a rapid and stable response when it was introduced to solutions of varying Hg(2+) concentrations...
November 2, 2016: Analytica Chimica Acta
Mitsuhiro Ueda, Tsukasa Sakaguchi, Miho Hayama, Takafumi Nakagawa, Yutaka Matsuo, Aiko Munechika, Shunsuke Yoshida, Hiroshi Yasuda, Ilhyong Ryu
The intermolecular [2+2] cycloaddition of allenol esters, which were in situ generated by Pt-catalyzed 1,3-acyloxy migration of propargylic esters, with C60 proceeded regio- and stereo-selectively to give a novel class of alkylidenecyclobutane-annulated fullerenes. The cyclobutane-annulated fullerene derivatives have high-lying LUMO levels, which gave a high open-circuit voltage in organic solar cell applications. The observed high electron mobility provided a good fill factor compared with the PCBM-based devices...
October 21, 2016: Chemical Communications: Chem Comm
Geeta Shroff, Dipin Thakur, Varun Dhingra, Deepak Singh Baroli, Deepanshu Khatri, Rahul Dev Gautam
BACKGROUND: The major complication faced by patients with chronic static spinal cord injury (SCI) is the loss of mobilization. With the aim to rehabilitate SCI patients, physiotherapy is performed worldwide. However, it only helps the patients to live with their disabilities. An interdisciplinary management involving human embryonic stem cell (hESC) therapy along with physiotherapy as a supportive therapy offers regenerative treatment of the patients with SCI. MAIN BODY: The present study focuses on the role of physiotherapy in the mobilization of patients with SCI (paraplegic 136; tetraplegics 90) undergoing hESC therapy...
December 2016: Clinical and Translational Medicine
Joshua Giltinan, Eric Diller, Metin Sitti
At the sub-millimeter scale, capillary forces enable robust and reversible adhesion between biological organisms and varied substrates. Current human-engineered mobile untethered micromanipulation systems rely on forces which scale poorly or utilize gripper-part designs that promote manipulation. Capillary forces, alternatively, are dependent upon the surface chemistry (which is scale independent) and contact perimeter, which conforms to the part surface. We report a mobile capillary microgripper that is able to pick and place parts of various materials and geometries, and is thus ideal for microassembly tasks that cannot be accomplished by large tethered manipulators...
October 21, 2016: Lab on a Chip
Brian G Alberding, Adam J Biacchi, Angela R Hight Walker, Edwin J Heilweil
Tin(II) monosulfide (SnS) is a semiconductor material with an intermediate band gap, high absorption coefficient in the visible range, and earth abundant, non-toxic constituent elements. For these reasons, SnS has generated much interest for incorporation into optoelectronic devices, but little is known concerning the charge carrier dynamics, especially as measured by optical techniques. Here, as opposed to prior studies of vapor deposited films, phase-pure colloidal SnS was synthesized by solution chemistry in three size regimes, ranging from nanometer- to micron-scale (SnS small nanoparticles, SnS medium 2D nanosheets, and SnS large 2D μm-sheets), and evaluated by time-resolved terahertz spectroscopy (TRTS); an optical, non-contact probe of the photoconductivity...
July 21, 2016: Journal of Physical Chemistry. C, Nanomaterials and Interfaces
Shearwood McClelland, Joseph F Baker, Justin S Smith, Breton G Line, Thomas J Errico, Christopher P Ames, R Shay Bess
Parkinson's disease (PD) is a neurodegenerative disorder manifesting over time to result in reduced mobility. The impact of PD on spinal fusion has yet to be addressed on a nationwide level. The Nationwide Inpatient Sample (NIS) from 2001 to 2012 was used for analysis. Admissions with spinal fusion of two or more vertebrae (ICD-9 codes=81.62, 81.63 and 81.64) were included and then stratified based on the presence or absence of PD (ICD-9 code=332.0); patients with cancer (ICD-9 codes=140-239) or trauma (ICD-9 codes=805...
October 17, 2016: Journal of Clinical Neuroscience: Official Journal of the Neurosurgical Society of Australasia
Gerhard Batz, Michael Dinkel
Echocardiography as an imaging method in anaesthesia and intensive care medicine has enabled a new dimension of hemodynamic monitoring: the direct visualization of the cardiac function and its disruptions. Preconditions for a broad application in this area was the development of mobile, high-definition ultrasonic devices and the origination of focused examination techniques. A successful application of this method requires the respective know-how of the examiner, in order to take relevant decisions and avoid misdiagnoses...
October 2016: Anästhesiologie, Intensivmedizin, Notfallmedizin, Schmerztherapie: AINS
Radu Danescu, Razvan Itu, Andra Petrovai
The driving environment is complex and dynamic, and the attention of the driver is continuously challenged, therefore computer based assistance achieved by processing image and sensor data may increase traffic safety. While active sensors and stereovision have the advantage of obtaining 3D data directly, monocular vision is easy to set up, and can benefit from the increasing computational power of smart mobile devices, and from the fact that almost all of them come with an embedded camera. Several driving assistance application are available for mobile devices, but they are mostly targeted for simple scenarios and a limited range of obstacle shapes and poses...
October 17, 2016: Sensors
Xuexia He, WaiLeong Chow, Fucai Liu, BengKang Tay, Zheng Liu
2D transition metal dichalcogenides are promising channel materials for the next-generation electronic device. Here, vertically 2D heterostructures, so called van der Waals solids, are constructed using inorganic molybdenum sulfide (MoS2 ) few layers and organic crystal - 5,6,11,12-tetraphenylnaphthacene (rubrene). In this work, ambipolar field-effect transistors are successfully achieved based on MoS2 and rubrene crystals with the well balanced electron and hole mobilities of 1.27 and 0.36 cm(2) V(-1) s(-1) , respectively...
October 20, 2016: Small
Andreas Brenneis, Felix Schade, Simon Drieschner, Florian Heimbach, Helmut Karl, Jose A Garrido, Alexander W Holleitner
For future on-chip communication schemes, it is essential to integrate nanoscale materials with an ultrafast optoelectronic functionality into high-frequency circuits. The atomically thin graphene has been widely demonstrated to be suitable for photovoltaic and optoelectronic devices because of its broadband optical absorption and its high electron mobility. Moreover, the ultrafast relaxation of photogenerated charge carriers has been verified in graphene. Here, we show that dual-gated graphene junctions can be functional parts of THz-circuits...
October 20, 2016: Scientific Reports
Chiara Tani, Leopoldo Trieste, Valentina Lorenzoni, Sara Cannizzo, Giuseppe Turchetti, Marta Mosca
Recent advances in health information technologies (HIT) in systemic lupus erythematosus have included electronic databases and registries, computerised clinical charts for patient monitoring, computerised diagnostic tools, computerised prediction rules and, more recently, disease-specific applications for mobile devices for physicians, health care professionals, and patients. Traditionally, HIT development has been oriented primarily to physicians and public administrators. However, more recent development of patient-centered Apps could improve communication and empower patients in the daily management of their disease...
September 2016: Clinical and Experimental Rheumatology
Fabio S Catarinella, Wouter H Bos
Digital assessment and graphical feedback of patient-reported outcome measures such as the Health Assessment Questionnaire (HAQ) could increase empowerment and involvement of patients in their own care process. The App ecosystem that Reade is building is an example of how digital assessment using mobile devices can be integrated into existing hospital IT infrastructure.
September 2016: Clinical and Experimental Rheumatology
Abby Eitzen, Marcia Finlayson, Leanne Carolan-Laing, Arthur Junn Nacionales, Christie Walker, Josephine O'Connor, Miho Asano, Susan Coote
PURPOSE: The purpose of this study was to identify potential items for an observational screening tool to assess safe, effective and appropriate walking aid use among people with multiple sclerosis (MS). Such a tool is needed because of the association between fall risk and mobility aid use in this population. METHODS: Four individuals with MS were videotaped using a one or two straight canes, crutches or a rollator in different settings. Seventeen health care professionals from Canada, Ireland and the United States were recruited, and viewed the videos, and were then interviewed about the use of the devices by the individuals in the videos...
October 20, 2016: Disability and Rehabilitation. Assistive Technology
Gyu Ri Hong, Sun Sook Lee, Yejin Jo, Min Jun Choi, Yun Chan Kang, Beyong-Hwan Ryu, Kwun Bum Chung, Youngmin Choi, Sunho Jeong
The solution-processable oxide semiconductors have gained the paramount attention with a possibility of forming cost-effectively semiconducting channel layers with moderate field-effect mobility for the application to thin-film transistors (TFTs). To date, a variety of compositional oxide material and post-annealing techniques have been demonstrated based on a spin-coating method, well-suited for a small-sized device fabrication along with a significant material loss in a large-area process. In this study, we report, for the first time report, a simple bar-coating process of soluble metal oxide semiconductors, consuming the 0...
October 20, 2016: ACS Applied Materials & Interfaces
Lisa M Quintiliani, Devin M Mann, Marissa Puputti, Emily Quinn, Deborah J Bowen
BACKGROUND: Health behavior and weight management interventions for cancer survivors have the potential to prevent future cancer recurrence and improve long-term health; however, their translation can be limited if the intervention is complex and involves high participant burden. Mobile health (mHealth) offers a delivery modality to integrate interventions into daily life routines. OBJECTIVE: The objective of this study was to evaluate the effects of a one-group trial with a pre-post evaluation design on engagement (use and acceptability), physiological (weight), behavioral (diet and physical activity), and other secondary outcomes...
January 2016: JMIR Cancer
Massimo Del Fabbro, Stefano Corbella, Patrick Sequeira-Byron, Igor Tsesis, Eyal Rosen, Alessandra Lolato, Silvio Taschieri
BACKGROUND: When primary root canal therapy fails, periapical lesions can be retreated with or without surgery. Root canal retreatment is a non-surgical procedure that involves removal of root canal filling materials from the tooth, followed by cleaning, shaping and obturating of the canals. Root-end resection is a surgical procedure that involves exposure of the periapical lesion through an osteotomy, surgical removal of the lesion, removal of part of the root-end tip, disinfection and, commonly, retrograde sealing or filling of the apical portion of the remaining root canal...
October 19, 2016: Cochrane Database of Systematic Reviews
Homero Rivas, Ignacio Robles, Francisco Riquelme, Marcelo Vivanco, Julio Jiménez, Boris Marinkovic, Mario Uribe
OBJECTIVE: To evaluate a new magnetic surgical system during reduced-port laparoscopic cholecystectomy in a prospective, multicenter clinical trial. BACKGROUND: Laparoscopic instrumentation coupled by magnetic fields may enhance surgeon performance by allowing for shaft-less retraction and mobilization. The movements can be performed under direct visualization, generating different angles of traction and reducing the number of trocars to perform the procedure. This may reduce well-known associated complications of trocars, including incisional pain, scarring, infection, bowel, and vascular injuries, among others...
October 17, 2016: Annals of Surgery
Genmao Huang, Lian Duan, Yunlong Zhao, Yunge Zhang, Guifang Dong, Deqiang Zhang, Yong Qiu
Thin-film transistors (TFTs) with high mobility and good uniformity are attractive for next-generation flat panel displays. In this work, solution-processed polycrystalline zinc tin oxide (ZTO) thin film with well-ordered microstructure is prepared, thanks to the synergistic effect of water addition and step heating. The step heating treatment other than direct annealing induces crystallization, while adequate water added to precursor solution further facilitates alloying and densification process. The optimal polycrystalline ZTO film is free of hierarchical sublayers, and featured with an increased amount of ternary phases, as well as a decreased fraction of oxygen vacancies and hydroxides...
October 19, 2016: Nanotechnology
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