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Sepali Guruge, Kenneth Po-Lun Fung, Souraya Sidani, David Este, Marina Morrow, Kwame McKenzie, Josephine Pui-Hing Wong
BACKGROUND: The available evidence on interventions addressing the stigma of mental illness is limited because of small samples, lack of diversity in study samples, and exclusion of people living with mental illness. To date, no published studies have evaluated anti-stigma interventions for Asian men in Canada. Aim This paper describes the protocol of a study to evaluate psychological and collective empowerment interventions (ACT, CEE, and ACT+CEE) in addressing self-stigma and social stigma in Asian communities in three urban settings in Canada: Toronto, Calgary and Vancouver...
June 18, 2018: Contemporary Clinical Trials
Laura Walawender, Jeremy Patterson, Robert Strouse, John Ketz, Vijay Saxena, Emily Alexy, Andrew Schwaderer
Objectives: Low hydration has a deleterious effect on many conditions. In the absence of a urine concentrating defect, urine concentration is a marker of hydration status. However, markers to evaluate hydration status have not been well studied in children. The objectives of this paper are to compare measures of thirst and urine concentration in children and to develop a novel mobile technology application to measure urine concentration. Study Design: Children age 12-17 years were selected ( n = 21) for this pilot study...
2018: Frontiers in Pediatrics
Stefania Fantinelli, Michela Cortini
This study takes place from the idea that the personal usage of mobile technologies can bring positive outcomes to the user and to their society in an indirect way. Technologies studied in this work are defined as persuasive technologies (Fogg, 1997) because they are intentionally designed to modify the users' attitude or behavior. This research is aimed to evaluate if the intention to use the application can be influenced by positive attitudes toward technology, by the persuasive power of the application and by the perceived fun...
2018: Frontiers in Psychology
Kirby K H Smithe, Chris D English, Saurabh V Suryavanshi, Eric Pop
Two-dimensional semiconductors such as monolayer MoS2 are of interest for future applications including flexible electronics and end-of-roadmap technologies. Most research to date has focused on low-field mobility, but the peak current-driving ability of transistors is limited by the high-field saturation drift velocity, vsat . Here, we measure high-field transport as a function of temperature for the first time in high-quality synthetic monolayer MoS2 . We find that in typical device geometries self-heating can significantly reduce vsat during high-field operation...
June 21, 2018: Nano Letters
Jing Chen, Huangyi Ge, Scott Moore, Weining Yang, Ninghui Li, Robert W Proctor
Communicating cybersecurity risks to mobile-device users is essential. However, existing means of conveying the risks through detailed permission lists are ineffective. Risk indexes that convey overall risk are effective at influencing app-selection decisions, but many users want more information. We examined how users assess the risks associated with downloading applications on the Android platform by comparing various graphical formats of intermediate-level risk displays containing three risk categories: personal privacy; monetary loss; device stability...
June 21, 2018: Journal of Experimental Psychology. Applied
Shang Ding, Zhenjie Ni, Mengxiao Hu, Gege Qiu, Jie Li, Jun Ye, Xiaotao Zhang, Feng Liu, Huanli Dong, Wenping Hu
A new asymmetric furan and thieno[3,2-b]thiophene flanked diketopyrrolopyrrole (TTFDPP) building block for conjugated polymers is designed and used to generate a donor-acceptor semiconducting polymer, poly[3-(furan-2-yl)-2,5-bis(2-octyldodecyl)-6-(thieno[3,2-b]thiophen-2-yl)pyrrolo[3,4-c]pyrrole-1,4(2H,5H)-dione-alt-thieno[3,2-b]thiophene] (abbreviated to PTTFDPP-TT), consisting of TTFDPP unit copolymerized with thieno[3,2-b]thiophene comonomer (TT), which is further synthesized. Results demonstrate that PTTFDPP-TT-based thin-film transistors in a bottom-gate bottom-contact device configuration exhibit typical hole-transporting property, with weak temperature dependence for charge carrier mobility from room temperature to 200 °C...
June 21, 2018: Macromolecular Rapid Communications
Dimitra Anastasiadou, Frans Folkvord, Francisco Lupiañez-Villanueva
OBJECTIVE: To systematically review the existing evidence of mobile health (mHealth) tools for the treatment of eating disorders (ED). METHOD: Electronic databases (Pubmed, PsycInfo, and SCOPUS) were searched, and PRISMA guidelines were followed. Selected studies were divided into three categories according to the intended purpose of the mHealth tools used: (a) sole means of support, (b) complementary to standard face-to-face treatment, and (c) for relapse prevention...
June 21, 2018: European Eating Disorders Review: the Journal of the Eating Disorders Association
Yuan Huang, Eli Sutter, Liangmei Wu, Hong Xu, Lihong Bao, Hong-Jun Gao, Xingjiang Zhou, Peter Sutter
Layered semiconductors show promise as channel materials for field-effect transistors (FETs). Usually, such devices incorporate solid back or top gate dielectrics. Here, we explore de-ionized (DI) water as a solution top gate for field-effect switching of layered semiconductors including SnS2, MoS2, and black phosphorus. The DI water gate is easily fabricated, can sustain rapid bias changes, and its efficient coupling to layered materials provides high on-off current ratios, near-ideal sub-threshold swing, and enhanced short-channel behavior even for FETs with thick, bulk-like channels where such control is difficult to realize with conventional back-gating...
June 21, 2018: ACS Applied Materials & Interfaces
Teng Wu, Jingbin Liu, Zheng Li, Keke Liu, Beini Xu
Indoor positioning is in high demand in a variety of applications, and indoor environment is a challenging scene for visual positioning. This paper proposes an accurate visual positioning method for smartphones. The proposed method includes three procedures. First, an indoor high-precision 3D photorealistic map is produced using a mobile mapping system, and the intrinsic and extrinsic parameters of the images are obtained from the mapping result. A point cloud is calculated using feature matching and multi-view forward intersection...
June 20, 2018: Sensors
David Kotz, Sarah E Lord, A James O'Malley, Luke Stark, Lisa A Marsch
Wearable and portable digital devices can support self-monitoring for patients with chronic medical conditions, individuals seeking to reduce stress, and people seeking to modify health-related behaviors such as substance use or overeating. The resulting data may be used directly by a consumer, or shared with a clinician for treatment, a caregiver for assistance, or a health coach for support. The data can also be used by researchers to develop and evaluate just-in-time interventions that leverage mobile technology to help individuals manage their symptoms and behavior in real time and as needed...
June 20, 2018: JMIR Research Protocols
Yoshimi Fukuoka, Teri G Lindgren, Yonatan Dov Mintz, Julie Hooper, Anil Aswani
BACKGROUND: Regular physical activity is associated with reduced risk of chronic illnesses. Despite various types of successful physical activity interventions, maintenance of activity over the long term is extremely challenging. OBJECTIVE: The aims of this original paper are to 1) describe physical activity engagement post intervention, 2) identify motivational profiles using natural language processing (NLP) and clustering techniques in a sample of women who completed the physical activity intervention, and 3) compare sociodemographic and clinical data among these identified cluster groups...
June 20, 2018: JMIR MHealth and UHealth
Seyed Amir Oleyaei, Seyed Mohammad Ali Razavi, Kirsi S Mikkonen
Sage seed gum (SSG) is a promising biopolymer candidate for utilization and substitution prevalent galactomannan gels of interest in soft biomaterial applications. Herein, physicochemical and rheo-mechanical properties of SSG matrix reinforced by various titanium dioxide (TiO2 ) nanoparticles loading (0-25wt%) were monitored. Particle size and density of the nanocomposite increased with raising TiO2 content, due to the creation of more compact agglomerated and aggregated microstructure. Increasing the particle size resulted in lower electrophoretic mobility of SSG-TiO2 systems upon nanoparticles addition, confirmed the adsorption of TiO2 on the SSG macromolecule...
June 17, 2018: International Journal of Biological Macromolecules
Sara da Silva Anacleto, Marcella Matos Cordeiro Borges, Hanna Leijoto de Oliveira, Andressa Reis Vicente, Eduardo Costa de Figueiredo, Marcone Augusto Leal de Oliveira, Bárbara Juliana Pinheiro Borges, Marcelo Antonio de Oliveira, Warley de Souza Borges, Keyller Bastos Borges
This study aimed to show that the physicochemical proprieties obtained by Fourier transform infrared spectroscopy (FTIR), thermogravimetry (TG), and scanning electronic microscopy (SEM) can be useful tools for evaluating the quality of active pharmaceutical ingredients (APIs) and pharmaceutical products. In addition, a simple, sensitive, and efficient method employing HPLC-DAD was developed for simultaneous determination of lidocaine (LID), ciprofloxacin (CFX) and enrofloxacin (EFX) in raw materials and in veterinary pharmaceutical formulations...
June 2018: Journal of Pharmaceutical Analysis
Leandro Pecchia, Rossana Castaldo, Luis Montesinos, Paolo Melillo
Ultra-short heart rate variability (HRV) analysis refers to the study of HRV features in excerpts of length <5 min. Ultra-short HRV is widely growing in many healthcare applications for monitoring individual's health and well-being status, especially in combination with wearable sensors, mobile phones, and smart-watches. Long-term (nominally 24 h) and short-term (nominally 5 min) HRV features have been widely investigated, physiologically justified and clear guidelines for analysing HRV in 5 min or 24 h are available...
June 2018: Healthcare Technology Letters
Chaudhry M S Sarwar, Muthiah Vaduganathan, Stefan D Anker, Stefano Coiro, Lampros Papadimitriou, Joel Saltz, Elinor R Schoenfeld, Richard L Clark, Wilfried Dinh, Frank Kramer, Mihai Gheorghiade, Gregg C Fonarow, Javed Butler
Cardiovascular disease is the leading cause of mortality and morbidity globally. With widespread and growing use of smart phones and mobile devices, the use of mobile health (mHealth) in transmission of physiologic parameters and patient-referred symptoms to healthcare providers and researchers, as well as reminders and care plan applications from providers to patients, has potential to revolutionize both clinical care and the conduct of clinical trials with improved designs, data capture, and potentially lower costs...
June 12, 2018: International Journal of Cardiology
Zhaosheng Hu, Zhen Wang, Gaurav Kapil, Tingli Ma, Satoshi Iikubo, Takashi Minemoto, Kenji Yoshino, Taro Toyoda, Qing Shen, Shuzi Hayase
Bismuth based solar cells have been under intensive interest as an efficient non-toxic absorber in photovoltaics. Within this new family of semiconductors, we herein, report a new, long-term stable material copper bismuth iodide (CuBiI₄). A solution-processed method is provided under air atmosphere. The adopted HI assisted Dimethylacetamide (DMA) co-solvent can completely dissolve CuI and BiI₃ powders with high concentration compared to other organic solvent. Moreover, high vapor pressure of Tributyl phosphate, we select for the solvent vapor annealing (SVA), enables the whole low-temperature (≤70⁰C) film preparation...
June 19, 2018: ChemSusChem
Kosuke Matsuzaki, Kou Harada, Yu Kumagai, Shogo Koshiya, Koji Kimoto, Shigenori Ueda, Masato Sasase, Akihiro Maeda, Tomofumi Susaki, Masaaki Kitano, Fumiyasu Oba, Hideo Hosono
Thin-film photovoltaics (PV) have emerged as a technology that can meet the growing demands for efficient and low-cost large-scale cells. However, the photoabsorbers currently in use contain expensive or toxic elements, and the difficulty in bipolar doping, particularly in a device structure, requires elaborate optimization of the heterostructures for improving the efficiency. This study shows that bipolar doping with high hole and electron mobilities in copper nitride (Cu3 N), composed solely of earth-abundant and environmentally benign elements, is readily available through a novel gaseous direct nitriding reaction applicable to uniform and large-area deposition...
June 19, 2018: Advanced Materials
Mutaz E Salih, Ahmad Aqel, Babiker Y Abdulkhair, Zeid A ALOthman, Mohamad A Abdulaziz, A Yacine Badjah-Hadj-Ahmed
Recently, analytical separation techniques have the potential toward green approaches to reduce the environmental impact. This study focuses on the development of an analytical method for the determination of paracetamol and chlorzoxazone in their pharmaceutical combination. The separation was achieved using a home-made capillary column (0.10 mm i.d. × 200 mm length) filled with porous cross-linked hexyl polymethacrylate as monolithic stationary phase. The method proved to be simple, fast, sensitive, efficient, cost-effective and green approach due to the combination of the amazing properties of a monolithic material and a miniaturized liquid chromatography, which would be considered as a step toward reducing the analytical costs and the environmental impact of chromatographic applications...
June 16, 2018: Journal of Chromatographic Science
Cleveland T Barnett, Natalie Vanicek, David F Rusaw
OBJECTIVE: To assess whether variables from a postural control test relate to and predict falls efficacy in prosthesis users. DESIGN: Twelve-month within and between subjects repeated measures design. Participants performed the Limits of Stability (LOS) test protocol at study baseline and at 6-month follow-up. Participants also completed the Falls Efficacy Scale-International (FES-I) questionnaire, reflecting the fear of falling, and reported the number of falls monthly between study baseline and 6-month follow-up, and additionally at 9- and 12-month follow-ups...
June 16, 2018: Archives of Physical Medicine and Rehabilitation
Hocheon Yoo, Seongin Hong, Sungmin On, Hyungju Ahn, Han-Koo Lee, Young Ki Hong, Sunkook Kim, Jae-Joon Kim
Multilayer MoS2 has been gaining interests as a new semiconducting material for flexible displays, memory devices, chemical/bio sensors, and photodetectors. However, conventional multilayer MoS2 devices have exhibited limited performances due to the Schottky barrier (SB) and defects. Here, we demonstrate PDPP3T doping effects in multilayer MoS2, which results in improved electrical characteristics (~3.2X mobility compared to the baseline and a high current on/off ratio of 106). Synchrotron-based study using X-ray photoelectron spectroscopy (XPS) and grazing-incidence wide-angle X-ray diffraction (GIWAXD) provides mechanisms that align the edge-on crystallites (97...
June 19, 2018: ACS Applied Materials & Interfaces
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