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https://www.readbyqxmd.com/read/29775490/monolithic-flexible-vertical-gan-light-emitting-diodes-for-a-transparent-wireless-brain-optical-stimulator
#1
Han Eol Lee, JeHyuk Choi, Seung Hyun Lee, Minju Jeong, Jung Ho Shin, Daniel J Joe, DoHyun Kim, Chang Wan Kim, Jung Hwan Park, Jae Hee Lee, Daesoo Kim, Chan-Soo Shin, Keon Jae Lee
Flexible inorganic-based micro light-emitting diodes (µLEDs) are emerging as a significant technology for flexible displays, which is an important area for bilateral visual communication in the upcoming Internet of Things era. Conventional flexible lateral µLEDs have been investigated by several researchers, but still have significant issues of power consumption, thermal stability, lifetime, and light-extraction efficiency on plastics. Here, high-performance flexible vertical GaN light-emitting diodes (LEDs) are demonstrated by silver nanowire networks and monolithic fabrication...
May 18, 2018: Advanced Materials
https://www.readbyqxmd.com/read/29772782/an-energy-balanced-and-lifetime-extended-routing-protocol-for-underwater-sensor-networks
#2
Hao Wang, Shilian Wang, Eryang Zhang, Luxi Lu
Energy limitation is an adverse problem in designing routing protocols for underwater sensor networks (UWSNs). To prolong the network lifetime with limited battery power, an energy balanced and efficient routing protocol, called energy balanced and lifetime extended routing protocol (EBLE), is proposed in this paper. The proposed EBLE not only balances traffic loads according to the residual energy, but also optimizes data transmissions by selecting low-cost paths. Two phases are operated in the EBLE data transmission process: (1) candidate forwarding set selection phase and (2) data transmission phase...
May 17, 2018: Sensors
https://www.readbyqxmd.com/read/29770432/automated-mandatory-bolus-versus-basal-infusion-for-maintenance-of-epidural-analgesia-in-labour
#3
REVIEW
Ban Leong Sng, Yanzhi Zeng, Nurun Nisa A de Souza, Wan Ling Leong, Ting Ting Oh, Fahad Javaid Siddiqui, Pryseley N Assam, Nian-Lin R Han, Edwin Sy Chan, Alex T Sia
BACKGROUND: Childbirth may cause the most severe pain some women experience in their lifetime. Epidural analgesia is an effective form of pain relief during labour and is considered to be the reference standard. Traditionally epidural analgesia has been delivered as a continuous infusion via a catheter in the epidural space, with or without the ability for the patient to supplement the analgesia received by activating a programmable pump to deliver additional top-up doses, known as patient-controlled epidural analgesia (PCEA)...
May 17, 2018: Cochrane Database of Systematic Reviews
https://www.readbyqxmd.com/read/29766611/drinking-game-participation-and-outcomes-in-a-sample-of-australian-university-students
#4
Amanda M George, Byron L Zamboanga
INTRODUCTION AND AIMS: Most drinking game (DG) research among university students has been conducted among USA college samples. The extent to which demographics and game type (e.g. team and sculling games) are linked to DG behaviours/consequences among non-USA students is not well understood. As such, the current study investigated characteristics of DG participation (and associated outcomes) among a sample of Australian university students. METHODS: University students (N = 252; aged 18-24 years; 67% female) who had consumed alcohol in the prior year completed an online survey...
May 15, 2018: Drug and Alcohol Review
https://www.readbyqxmd.com/read/29764402/association-between-induced-abortion-and-suicidal-ideation-among-unmarried-female-migrant-workers-in-three-metropolitan-cities-in-china-a-cross-sectional-study
#5
Mengyun Luo, Xueqin Jiang, Ying Wang, Zezhou Wang, Qiuming Shen, Rui Li, Yong Cai
BACKGROUND: Despite reports of mental health issues, suicidality has not been closely examined among the migrant population. The association between induced abortion and suicidal ideation is unknown among unmarried female migrant workers of reproductive age in China. This study aims to examine induced abortion and suicidality among the Chinese migrant population. METHODS: We recruited 5115 unmarried female migrant workers during 2015 to 2016 from Shanghai, Beijing and Guangzhou, and collected demographic, psychosocial, reproductive and mental health information using structured questionnaires...
May 15, 2018: BMC Public Health
https://www.readbyqxmd.com/read/29763464/directional-virtual-backbone-based-data-aggregation-scheme-for-wireless-visual-sensor-networks
#6
Jing Zhang, Shi-Jian Liu, Pei-Wei Tsai, Fu-Min Zou, Xiao-Rong Ji
Data gathering is a fundamental task in Wireless Visual Sensor Networks (WVSNs). Features of directional antennas and the visual data make WVSNs more complex than the conventional Wireless Sensor Network (WSN). The virtual backbone is a technique, which is capable of constructing clusters. The version associating with the aggregation operation is also referred to as the virtual backbone tree. In most of the existing literature, the main focus is on the efficiency brought by the construction of clusters that the existing methods neglect local-balance problems in general...
2018: PloS One
https://www.readbyqxmd.com/read/29762535/leveraging-energy-harvesting-and-wake-up-receivers-for-long-term-wireless-sensor-networks
#7
Fayçal Ait Aoudia, Matthieu Gautier, Michele Magno, Olivier Berder, Luca Benini
Wireless sensor nodes are traditionally powered by individual batteries, and a significant effort has been devoted to maximizing the lifetime of these devices. However, as the batteries can only store a finite amount of energy, the network is still doomed to die, and changing the batteries is not always possible. A promising solution is to enable each node to harvest energy directly in its environment, using individual energy harvesters. Moreover, novel ultra-low power wake-up receivers, which allow continuous listening of the channel with negligible power consumption, are emerging...
May 15, 2018: Sensors
https://www.readbyqxmd.com/read/29762517/the-potential-cost-effectiveness-and-equity-impacts-of-restricting-television-advertising-of-unhealthy-food-and-beverages-to-australian-children
#8
Vicki Brown, Jaithri Ananthapavan, Lennert Veerman, Gary Sacks, Anita Lal, Anna Peeters, Kathryn Backholer, Marjory Moodie
Television (TV) advertising of food and beverages high in fat, sugar and salt (HFSS) influences food preferences and consumption. Children from lower socioeconomic position (SEP) have higher exposure to TV advertising due to more time spent watching TV. This paper sought to estimate the cost-effectiveness of legislation to restrict HFSS TV advertising until 9:30 pm, and to examine how health benefits and healthcare cost-savings differ by SEP. Cost-effectiveness modelling was undertaken (i) at the population level, and (ii) by area-level SEP...
May 15, 2018: Nutrients
https://www.readbyqxmd.com/read/29751663/an-energy-centric-cluster-based-routing-protocol-for-wireless-sensor-networks
#9
A S M Sanwar Hosen, Gi Hwan Cho
Clustering is an effective way to prolong the lifetime of a wireless sensor network (WSN). The common approach is to elect cluster heads to take routing and controlling duty, and to periodically rotate each cluster head's role to distribute energy consumption among nodes. However, a significant amount of energy dissipates due to control messages overhead, which results in a shorter network lifetime. This paper proposes an energy-centric cluster-based routing mechanism in WSNs. To begin with, cluster heads are elected based on the higher ranks of the nodes...
May 11, 2018: Sensors
https://www.readbyqxmd.com/read/29751536/energy-aware-cluster-based-routing-in-flying-ad-hoc-networks
#10
Farhan Aadil, Ali Raza, Muhammad Fahad Khan, Muazzam Maqsood, Irfan Mehmood, Seungmin Rho
Flying ad-hoc networks (FANETs) are a very vibrant research area nowadays. They have many military and civil applications. Limited battery energy and the high mobility of micro unmanned aerial vehicles (UAVs) represent their two main problems, i.e., short flight time and inefficient routing. In this paper, we try to address both of these problems by means of efficient clustering. First, we adjust the transmission power of the UAVs by anticipating their operational requirements. Optimal transmission range will have minimum packet loss ratio (PLR) and better link quality, which ultimately save the energy consumed during communication...
May 3, 2018: Sensors
https://www.readbyqxmd.com/read/29748525/an-adaption-broadcast-radius-based-code-dissemination-scheme-for-low-energy-wireless-sensor-networks
#11
Shidi Yu, Xiao Liu, Anfeng Liu, Naixue Xiong, Zhiping Cai, Tian Wang
Due to the Software Defined Network (SDN) technology, Wireless Sensor Networks (WSNs) are getting wider application prospects for sensor nodes that can get new functions after updating program codes. The issue of disseminating program codes to every node in the network with minimum delay and energy consumption have been formulated and investigated in the literature. The minimum-transmission broadcast (MTB) problem, which aims to reduce broadcast redundancy, has been well studied in WSNs where the broadcast radius is assumed to be fixed in the whole network...
May 10, 2018: Sensors
https://www.readbyqxmd.com/read/29738564/convolutional-neural-network-based-classification-system-design-with-compressed-wireless-sensor-network-images
#12
Jungmo Ahn, JaeYeon Park, Donghwan Park, Jeongyeup Paek, JeongGil Ko
With the introduction of various advanced deep learning algorithms, initiatives for image classification systems have transitioned over from traditional machine learning algorithms (e.g., SVM) to Convolutional Neural Networks (CNNs) using deep learning software tools. A prerequisite in applying CNN to real world applications is a system that collects meaningful and useful data. For such purposes, Wireless Image Sensor Networks (WISNs), that are capable of monitoring natural environment phenomena using tiny and low-power cameras on resource-limited embedded devices, can be considered as an effective means of data collection...
2018: PloS One
https://www.readbyqxmd.com/read/29738472/smart-waste-collection-system-with-low-consumption-lorawan-nodes-and-route-optimization
#13
Álvaro Lozano, Javier Caridad, Juan Francisco De Paz, Gabriel Villarrubia González, Javier Bajo
New solutions for managing waste have emerged due to the rise of Smart Cities and the Internet of Things. These solutions can also be applied in rural environments, but they require the deployment of a low cost and low consumption sensor network which can be used by different applications. Wireless technologies such as LoRa and low consumption microcontrollers, such as the SAM L21 family make the implementation and deployment of this kind of sensor network possible. This paper introduces a waste monitoring and management platform used in rural environments...
May 8, 2018: Sensors
https://www.readbyqxmd.com/read/29727721/natural-occurrence-of-genotoxic-and-carcinogenic-alkenylbenzenes-in-indonesian-jamu-and-evaluation-of-consumer-risks
#14
Suparmi Suparmi, Diana Widiastuti, Sebastiaan Wesseling, Ivonne M C M Rietjens
The consumer risks of jamu, Indonesian traditional herbal medicines, was assessed focussing on the presence of alkenylbenzene containing botanical ingredients. Twenty-three out of 25 samples contained alkenylbenzenes at levels ranging from 3.8 to 440 μg/kg, with methyleugenol being the most frequently encountered alkenylbenzene. The estimated daily intake (EDI) resulting from jamu consumption was estimated to amount to 0.2-171 μg/kg bw/day for individual alkenylbenzenes, to 0.9-203 μg/kg bw/day when adding up all alkenylbenzenes detected, and to 0...
May 1, 2018: Food and Chemical Toxicology
https://www.readbyqxmd.com/read/29721401/marine-litter-plastics-and-microplastics-and-their-toxic-chemicals-components-the-need-for-urgent-preventive-measures
#15
Frederic Gallo, Cristina Fossi, Roland Weber, David Santillo, Joao Sousa, Imogen Ingram, Angel Nadal, Dolores Romano
Persistent plastics, with an estimated lifetime for degradation of hundreds of years in marine conditions, can break up into micro- and nanoplastics over shorter timescales, thus facilitating their uptake by marine biota throughout the food chain. These polymers may contain chemical additives and contaminants, including some known endocrine disruptors that may be harmful at extremely low concentrations for marine biota, thus posing potential risks to marine ecosystems, biodiversity and food availability. Although there is still need to carry out focused scientific research to fill the knowledge gaps about the impacts of plastic litter in the marine environment (Wagner et al...
2018: Environmental Sciences Europe
https://www.readbyqxmd.com/read/29712503/disparities-in-screening-for-head-and-neck-cancer-evidence-from-the-nhanes-2011-2014
#16
Adam Kravietz, Prashant Angara, Mina Le, Zoukaa Sargi
Objective To measure the association between race and head and neck cancer screening and education. Study Design Nationally representative survey. Setting US National Center for Health Statistics. Subjects and Methods Pooled data from the 2011-2014 National Health and Nutrition Examination Survey were used to examine disparities in head and neck cancer education and screening among US citizens aged ≥18 years. We measured the association between race and head and neck cancer education and screening, adjusting for age, sex, education, income, and health insurance...
April 1, 2018: Otolaryngology—Head and Neck Surgery
https://www.readbyqxmd.com/read/29708993/alcohol-use-abuse-and-dependence-in-an-older-european-population-results-from-the-mentdis_icf65-study
#17
Manuel Muñoz, Berta Ausín, Ana B Santos-Olmo, Martin Härter, Jana Volkert, Holger Schulz, Susanne Sehner, Maria Christina Dehoust, Anna Suling, Karl Wegscheider, Alessandra Canuto, Mike J Crawford, Luigi Grassi, Chiara Da Ronch, Yael Hershkovitz, Alan Quirk, Ora Rotenstein, Arieh Y Shalev, Jens Strehle, Kerstin Weber, Hans-Ulrich Wittchen, Sylke Andreas
BACKGROUND: Alcohol use disorders (AUD) in older people have been the subject of increasing interest in Europe and worldwide. However, thus far, no reliable data exist regarding the prevalence of AUD in people over the age of 65 years in Europe. OBJECTIVE: To assess the current (past month), 12-month and lifetime prevalence of alcohol use, abuse and dependence in people aged 65-84 years. STUDY DESIGN: The MentDis_ICF65+ study was a representative stepwise cross-sectional survey that was conducted in six European and associated cities (Hamburg, Germany; Ferrara, Italy; London/Canterbury, England; Madrid, Spain; Geneva, Switzerland and Jerusalem, Israel)...
2018: PloS One
https://www.readbyqxmd.com/read/29708042/the-epidemiology-of-5-methoxy-n-n-dimethyltryptamine-5-meo-dmt-use-benefits-consequences-patterns-of-use-subjective-effects-and-reasons-for-consumption
#18
Alan K Davis, Joseph P Barsuglia, Rafael Lancelotta, Robert M Grant, Elise Renn
BACKGROUND/AIM: 5-Methoxy- N,N-dimethyltryptamine (5-MeO-DMT) is a psychoactive compound found in several plants and in high concentrations in Bufo alvarius toad venom. Synthetic, toad, and plant-sourced 5-MeO-DMT are used for spiritual and recreational purposes and may have psychotherapeutic effects. However, the use of 5-MeO-DMT is not well understood. Therefore, we examined patterns of use, motivations for consumption, subjective effects, and potential benefits and consequences associated with 5-MeO-DMT use...
April 1, 2018: Journal of Psychopharmacology
https://www.readbyqxmd.com/read/29706189/risk-factors-for-salivary-gland-cancers-in-france-results-from-a-case-control-study-the-icare-study
#19
Loredana Radoï, Christine Barul, Gwenn Menvielle, Matthieu Carton, Mireille Matrat, Marie Sanchez, Corinne Pilorget, Michel Velten, Isabelle Stücker, Danièle Luce
OBJECTIVES: Epidemiological studies on the risk factors for salivary gland cancers (SGC) are rare, concern a small sample size, and show inconsistent results. The aim of the present work was to analyze several risk factors for SGC, using the data from the ICARE study, a multicenter, population-based case-control study. MATERIALS AND METHODS: Data from 73 SGC cases and 3555 controls were collected using a standardized questionnaire on lifestyle habits, personal and family medical history, and lifetime occupational history...
May 2018: Oral Oncology
https://www.readbyqxmd.com/read/29706018/hpv-prevalence-in-a-mid-european-oral-squamous-cell-cancer-population-a-cohort-study
#20
Daniel Dalla Torre, Doris Burtscher, Elisabeth Soelder, Vincent Offermanns, Michael Rasse, Wolfgang Puelacher
OBJECTIVES: HPV infection has been investigated intensively regarding oropharyngeal carcinoma. However, there is still lack of knowledge about the impact of oral HPV infections concerning oral squamous cell carcinoma. The present study investigates the prevalence of oral HPV infection in such patients, identifying possible differences between HPV+ and HPV- patients. SUBJECTS AND METHODS: 106 consequent patients were investigated. After completion of a study questionnaire regarding risk factors, a brush smear sample was taken in each subject to identify the individual oral HPV status (overall/low risk/high risk)...
April 29, 2018: Oral Diseases
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