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https://www.readbyqxmd.com/read/28531350/embedded-metal-electrode-for-organic-inorganic-hybrid-nanowire-solar-cells
#1
Han-Don Um, Deokjae Choi, Ahreum Choi, Ji Hoon Seo, Kwanyong Seo
We demonstrate here an embedded metal electrode for highly efficient organic-inorganic hybrid nanowire solar cells. The electrode proposed here is an effective alternative to the conventional bus and finger electrode which leads to a localized short circuit at a direct Si/metal contact and has a poor collection efficiency due to a nonoptimized electrode design. In our design, an Ag/SiO2 electrode is embedded into a Si substrate while being positioned between Si nanowire (SiNW) arrays underneath poly(3,4-ethylenedioxythiophene):poly(styrenesulfonate) (PEDOT:PSS), facilitating suppressed recombination at the Si/Ag interface and notable improvements in the fabrication reproducibility...
May 22, 2017: ACS Nano
https://www.readbyqxmd.com/read/28529756/a-socioecological-framework-for-research-on-work-and-obesity-in-diverse-urban-transit-operators-based-on-gender-race-and-ethnicity
#2
REVIEW
BongKyoo Choi, Peter Schnall, Marnie Dobson, Haiou Yang, Dean Baker, YoungJu Seo
Urban transit (bus and rail) operators, totaling nearly 700,000 persons, are one of the heaviest occupational groups in the United States (US). Little is known about occupational risk factors for weight gain and obesity and their interrelationship with health-related behaviors, particularly among female minority (African Americans and Hispanics) transit operators who are at greater risk for obesity. As a step towards developing successful obesity interventions among urban transit operators, this paper aims to present a new socioecological framework for studying working conditions, chronic strain, health-related behaviors, weight gain/obesity, and obesity disparity in diverse urban transit operators based on gender, race, and ethnicity...
2017: Annals of Occupational and Environmental Medicine
https://www.readbyqxmd.com/read/28529528/safety-evaluation-of-potential-toxic-metals-exposure-from-street-foods-consumed-in-mid-west-nigeria
#3
O C Ekhator, N A Udowelle, S Igbiri, R N Asomugha, Z N Igweze, O E Orisakwe
Objective. Street-vended foods offer numerous advantages to food security; nevertheless, the safety of street food should be considered. This study has investigated the level of potential toxic metal (Pb, Cd, Hg, Sb, Mn, and Al) contamination among street-vended foods in Benin City and Umunede. Methods. Twenty street food samples were purchased from vendors at bus stops. Metals were analyzed with atomic absorption spectrophotometry. The methods developed by the US EPA were employed to evaluate the potential health risk of toxic metals...
2017: Journal of Environmental and Public Health
https://www.readbyqxmd.com/read/28526053/pre-hospital-triage-performance-after-standardized-trauma-courses
#4
Maria Lampi, Johan Junker, Peter Berggren, Carl-Oscar Jonson, Tore Vikström
BACKGROUND: The pre-hospital triage process aims at identifying and prioritizing patients in the need of prompt intervention and/or evacuation. The objective of the present study was to evaluate triage decision skills in a Mass Casualty Incident drill. The study compares two groups of participants in Advanced Trauma Life Support and Pre-Hospital Trauma Life Support courses. METHODS: A questionnaire was used to deal with three components of triage of victims in a Mass Casualty Incident: decision-making; prioritization of 15 hypothetical casualties involved in a bus crash; and prioritization for evacuation...
May 19, 2017: Scandinavian Journal of Trauma, Resuscitation and Emergency Medicine
https://www.readbyqxmd.com/read/28506403/an-on-road-study-of-sleepiness-in-split-shifts-among-city-bus-drivers
#5
Anna Anund, Carina Fors, Jonas Ihlström, Göran Kecklund
Bus drivers often work irregular hours or split shifts and their work involves high levels of stress. These factors can lead to severe sleepiness and dangerous driving. This study examined how split shift working affects sleepiness and performance during afternoon driving. An experiment was conducted on a real road with a specially equipped regular bus driven by professional bus drivers. The study had a within-subject design and involved 18 professional bus drivers (9 males and 9 females) who drove on two afternoons; one on a day in which they had driven early in the morning (split shift situation) and one on a day when they had been off duty until the test (afternoon shift situation)...
May 12, 2017: Accident; Analysis and Prevention
https://www.readbyqxmd.com/read/28503528/the-development-of-anger-management-program-based-on-acceptance-and-commitment-therapy-for-youth-taekwondo-players
#6
Duksun Chang, Seunghyun Hwang
This study aimed to develop an intervention program based on acceptance and commitment therapy (ACT) for youth taekwondo players. Eight sessions of the ACT program were provided to nine youth taekwondo players. The content analysis was conducted for the activities, activity sheets, assignments, and program evaluations. First of all, the results showed that the ACT program changed the participants' diverse psychological inflexibility a flexible and value-oriented state, which was supported by their positive mood changes after each session...
April 2017: Journal of Exercise Rehabilitation
https://www.readbyqxmd.com/read/28502602/uncontacted-tire-explosion-causing-trauma-to-bilateral-lower-extremities-a-case-report
#7
Ming-Yang Yu, Yun Su, Xiang-Jun Meng, Bo-Wu Luan, Gui-Shan Gu, Qiang Sun, De-Wei Zhao
It is uncommon for tire explosion related injuries on the lower extremity. The bilateral lower extremities were injured by tire explosion when the patient was seated in a bus. She sustained an open fracture with partial bone loss in the right calcaneus (a comminuted fracture in the right ankle joint) and a closed comminuted fracture in the left tibia and fibula. This damage was caused by uncontacted tire explosion, thanks to a thick floor between the exploded tire and the patient's feet. This type of injury on lower extremity caused by uncontacted tire explosion was uncommon...
March 16, 2017: Chinese Journal of Traumatology, Zhonghua Chuang Shang za Zhi
https://www.readbyqxmd.com/read/28494258/stress-related-psychosocial-factors-at-work-fatigue-and-risky-driving-behavior-in-bus-rapid-transport-brt-drivers
#8
Sergio A Useche, Viviola Gómez Ortiz, Boris E Cendales
INTRODUCTION: There is consistent scientific evidence that professional drivers constitute an occupational group that is highly exposed to work related stressors. Furthermore, several recent studies associate work stress and fatigue with unsafe and counterproductive work behaviors. This study examines the association between stress-related work conditions of Bus Rapid Transport (BRT) drivers and risky driving behaviors; and examines whether fatigue is a mechanism that mediates the association between the two...
May 8, 2017: Accident; Analysis and Prevention
https://www.readbyqxmd.com/read/28482304/a-comparison-of-pm-exposure-related-to-emission-hotspots-in-a-hot-and-humid-urban-environment-concentrations-compositions-respiratory-deposition-and-potential-health-risks
#9
Siming You, Zhiyi Yao, Yanjun Dai, Chi-Hwa Wang
Particle number concentration, particle size distribution, and size-dependent chemical compositions were measured at a bus stop, alongside a high way, and at an industrial site in a tropical city. It was found that the industry case had 4.93×10(7)-7.23×10(7) and 3.44×10(4)-3.69×10(4)#/m(3) higher concentration of particles than the bus stop and highway cases in the range of 0.25-0.65μm and 2.5-32μm, respectively, while the highway case had 6.01×10(5) and 1.86×10(3)#/m(3) higher concentration of particles than the bus stop case in the range of 0...
May 5, 2017: Science of the Total Environment
https://www.readbyqxmd.com/read/28482193/synthesis-of-d-fructose-conjugated-ligands-via-c6-and-c1-and-their-corresponding-ru-bpy-2-l-cl2-complexes
#10
Michael Pröhl, Pascal D Moser, Justyna A Czaplewska, Patrick Hoffmann, Tanja Buś, Anja Traeger, Helmar Goerls, Ulrich S Schubert, Michael Gottschaldt
A pyridyl triazole (pyta) modified sucrose ligand was prepared in a seven step synthesis using d-glucose as the protection group for d-fructose and starting from commercially available sucrose. After complexation with Ru(bpy)2Cl2 precursor, the sucrose-conjugated Ru complex of the general formula [Ru(bpy)2(L)]Cl2 was formed. Acidic cleavage of the d-glucose unit led to the first d-fructose conjugated metal complex viad-fructose C6 in literature. Additionally, pyta-modified d-fructose via C1 and the corresponding Ru complex were synthesized...
April 27, 2017: Carbohydrate Research
https://www.readbyqxmd.com/read/28477293/is-technology-still-a-major-driver-of-health-expenditure-in-the-united-states-evidence-from-cointegration-analysis-with-multiple-structural-breaks
#11
Vasudeva N R Murthy, Natalya Ketenci
Using a longer span of available time series data and employing powerful unit root and cointegration tests that allow for multiple structural breaks, developed recently by Carrion-i-Silvestre et al. (Econ Theory 25:1754-1792, 2009), Perron and Yabu (J Bus Econ Stat 27:369-396, 2009), Kejriwal and Perron (J Econ 146(1):59-73, 2008; J Bus Econ Stat 28(4):503-522, 2010a; J Time Ser Anal 31:305-328, 2010b) and Maki (Econ Model 29:2011-2015, 2012), this paper empirically investigates, whether technology continues to be a major driver of real per capita health expenditure, along with some control variables such as per capita income and life expectancy, in the United States, during the period 1960-2012...
March 2017: International Journal of Health Economics and Management
https://www.readbyqxmd.com/read/28475421/exploring-accessibility-issues-of-a-public-building-for-the-mobility-impaired-case-study-interstate-bus-terminal-isbt-vijayawada-india
#12
Valliappan Alagappan, Albert Hefferan, Aarthi Parivallal
Right to access in the built environment creates equal and nondiscriminatory opportunities to a person with disabilities in order to move freely around and interact positively without hindrance and barriers. The objective of the study is to understand the existing accessibility related issues and implementation of guidelines and standards for public buildings. The technical verification using onsite and offsite access audit format for current provision of facilities in the internal and external environment has been carried out with the format prepared in reference to Central Public Works Department (CPWD) accessibility guidelines for mobility impaired and elderly and American Disability Act (ADA) guidelines...
May 5, 2017: Disability and Rehabilitation. Assistive Technology
https://www.readbyqxmd.com/read/28475067/distributed-optimal-consensus-over-resource-allocation-network-and-its-application-to-dynamical-economic-dispatch
#13
Chaojie Li, Xinghuo Yu, Tingwen Huang, Xing He
The resource allocation problem is studied and reformulated by a distributed interior point method via a θ-logarithmic barrier. By the facilitation of the graph Laplacian, a fully distributed continuous-time multiagent system is developed for solving the problem. Specifically, to avoid high singularity of the θ-logarithmic barrier at boundary, an adaptive parameter switching strategy is introduced into this dynamical multiagent system. The convergence rate of the distributed algorithm is obtained. Moreover, a novel distributed primal-dual dynamical multiagent system is designed in a smart grid scenario to seek the saddle point of dynamical economic dispatch, which coincides with the optimal solution...
May 2, 2017: IEEE Transactions on Neural Networks and Learning Systems
https://www.readbyqxmd.com/read/28467381/distributed-and-modular-can-based-architecture-for-hardware-control-and-sensor-data-integration
#14
Diego P Losada, Joaquín L Fernández, Enrique Paz, Rafael Sanz
In this article, we present a CAN-based (Controller Area Network) distributed system to integrate sensors, actuators and hardware controllers in a mobile robot platform. With this work, we provide a robust, simple, flexible and open system to make hardware elements or subsystems communicate, that can be applied to different robots or mobile platforms. Hardware modules can be connected to or disconnected from the CAN bus while the system is working. It has been tested in our mobile robot Rato, based on a RWI (Real World Interface) mobile platform, to replace the old sensor and motor controllers...
May 3, 2017: Sensors
https://www.readbyqxmd.com/read/28447109/diagnostic-nomogram-for-gallbladder-wall-thickening-mimicking-malignancy-using-contrast-enhanced-ultrasonography-or-multi-detector-computed-tomography
#15
Li-Da Chen, Yang Huang, Xiao-Hua Xie, Wei Chen, Quan-Yuan Shan, Ming Xu, Jin-Ya Liu, Zhi-Qiang Nie, Xiao-Yan Xie, Ming-De Lu, Shun-Li Shen, Wei Wang
OBJECTIVES: To establish a diagnostic nomogram using contrast-enhanced ultrasonography (CEUS) in gallbladder wall thickening mimicking malignancy and compare with multi-detector computed tomography (MDCT). METHODS: Seventy-two patients with gallbladder wall thickening on B-mode ultrasonography (BUS) were examined by CEUS to develop independent predictors for diagnosing gallbladder carcinoma. Among the 72 cases, 48 patients underwent both CEUS and MDCT. The diagnostic performances of different sets of CEUS criteria and MDCT were compared...
April 26, 2017: Abdominal Radiology
https://www.readbyqxmd.com/read/28444774/protective-effect-of-l-carnitine-and-l-arginine-against-busulfan-induced-oligospermia-in-adult-rat
#16
A M Abd-Elrazek, O A H Ahmed-Farid
Busulfan is an anticancer drug caused variety of adverse effects for patients with cancer. But it could cause damage to the male reproductive system as one of its adverse effects. This study aimed to investigate the protective effect of L-carnitine and L-arginine on semen quality, oxidative stress parameters and testes cell energy after busulfan treatment. Adult male rats were divided into four groups: control (Con), busulfan (Bus), busulfan plus L-arginine (Bus + L-arg) and busulfan plus L-carnitine (Bus + L-car)...
April 25, 2017: Andrologia
https://www.readbyqxmd.com/read/28441743/smartphone-location-independent-physical-activity-recognition-based-on-transportation-natural-vibration-analysis
#17
Taeho Hur, Jaehun Bang, Dohyeong Kim, Oresti Banos, Sungyoung Lee
Activity recognition through smartphones has been proposed for a variety of applications. The orientation of the smartphone has a significant effect on the recognition accuracy; thus, researchers generally propose using features invariant to orientation or displacement to achieve this goal. However, those features reduce the capability of the recognition system to differentiate among some specific commuting activities (e.g., bus and subway) that normally involve similar postures. In this work, we recognize those activities by analyzing the vibrations of the vehicle in which the user is traveling...
April 23, 2017: Sensors
https://www.readbyqxmd.com/read/28436841/two-wire-bus-combining-full-duplex-body-sensor-network-and-multilead-biopotential-measurements
#18
Michael Rapin, Josias Wacker, Olivier Chetelat
Classical approaches to make high-quality measurements of biopotential signals require the use of shielded or multiwire cables connecting the electrodes to a central unit in a star arrangement. As a consequence, increasing the number of leads increases cabling and connector complexity which is not only limiting the patient comfort but is also anticipated as the main limiting factor to future miniaturization and cost reduction of tomorrow's wearables. We have recently introduced a novel sensing architecture that significantly reduces the cabling complexity by eliminating shielded or multiwire cables and by allowing simple connectors thanks to a bus arrangement...
April 24, 2017: IEEE Transactions on Bio-medical Engineering
https://www.readbyqxmd.com/read/28430485/coherent-coupling-of-remote-spin-ensembles-via-a-cavity-bus
#19
T Astner, S Nevlacsil, N Peterschofsky, A Angerer, S Rotter, S Putz, J Schmiedmayer, J Majer
We report coherent coupling between two macroscopically separated nitrogen-vacancy electron spin ensembles in a cavity quantum electrodynamics system. The coherent interaction between the distant ensembles is directly detected in the cavity transmission spectrum by observing bright and dark collective multiensemble states and an increase of the coupling strength to the cavity mode. Additionally, in the dispersive limit we show transverse ensemble-ensemble coupling via virtual photons.
April 7, 2017: Physical Review Letters
https://www.readbyqxmd.com/read/28430480/superconducting-grid-bus-surface-code-architecture-for-hole-spin-qubits
#20
Simon E Nigg, Andreas Fuhrer, Daniel Loss
We present a scalable hybrid architecture for the 2D surface code combining superconducting resonators and hole-spin qubits in nanowires with tunable direct Rashba spin-orbit coupling. The backbone of this architecture is a square lattice of capacitively coupled coplanar waveguide resonators each of which hosts a nanowire hole-spin qubit. Both the frequency of the qubits and their coupling to the microwave field are tunable by a static electric field applied via the resonator center pin. In the dispersive regime, an entangling two-qubit gate can be realized via a third order process, whereby a virtual photon in one resonator is created by a first qubit, coherently transferred to a neighboring resonator, and absorbed by a second qubit in that resonator...
April 7, 2017: Physical Review Letters
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