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https://www.readbyqxmd.com/read/28931866/ion-channel-aligned-gas-blocking-membrane-for-lithium-air-batteries
#1
Wonsung Choi, Mokwon Kim, Jung Ock Park, Joon-Hee Kim, Kyunghwan Choi, Yong Su Kim, Tae Young Kim, Ken Ogata, Dongmin Im, Seok-Gwang Doo, Yunil Hwang
Lithium-metal-based batteries, owing to the extremely high specific energy, have been attracting intense interests as post-Li-ion batteries. However, their main drawback is that consumption/de-activation of lithium metal can be accelerated when O2 or S used in the cathode crosses over to the metal, reducing the lifetime of the batteries. In use of ceramic solid state electrolyte (SSE) separator, despite the capability of gas blocking, thick and heavy plates (~0.3 mm) are necessitated to compensate its mechanical fragility, which ruin the high specific energy of the batteries...
September 20, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28929460/trace-metal-levels-in-rainbow-trout-oncorhynchus-mykiss-cultured-in-net-cages-in-a-reservoir-and-evaluation-of-human-health-risks-from-consumption
#2
Memet Varol, Gülderen Kurt Kaya, Sumru Anık Alp, Muhammet Raşit Sünbül
Although fish consumption has positive health effects, metals accumulated in fish can cause human health risks. In this study, the levels of ten metals in rainbow trout (Oncorhynchus mykiss) farmed in the Keban Dam Reservoir, which has the biggest rainbow trout production capacity in Turkey, were determined and compared with the maximum permissible levels (MPLs). Also, human health risks associated with rainbow trout consumption were assessed. The metal concentrations in rainbow trout were found below the MPLs...
September 19, 2017: Biological Trace Element Research
https://www.readbyqxmd.com/read/28929275/current-pesticide-dietary-risk-assessment-in-light-of-comparable-animal-study-noaels-after-chronic-and-short-termed-exposure-durations
#3
Jürg A Zarn, Caitlyn D O'Brien
Dietary risk assessment (DRA) of pesticides includes the estimation of chronic and acute exposures from crop residues, but assesses acute exposures only for pesticides with an acute reference dose (ARfD). Acute estimation uses high percentiles of food consumption surveys which are considerably higher than per capita lifetime averaged food consumption values which are used for chronic estimations. Assessing acute risks only for pesticides with an ARfD tacitly assumes that chronic risk assessment covers also intermittent occurring exposures which could significantly exceed chronic estimates...
September 19, 2017: Archives of Toxicology
https://www.readbyqxmd.com/read/28926958/an-eccentricity-based-data-routing-protocol-with-uniform-node-distribution-in-3d-wsn
#4
A S M Sanwar Hosen, Gi Hwan Cho, In-Ho Ra
Due to nonuniform node distribution, the energy consumption of nodes are imbalanced in clustering-based wireless sensor networks (WSNs). It might have more impact when nodes are deployed in a three-dimensional (3D) environment. In this regard, we propose the eccentricity based data routing (EDR) protocol in a 3D WSN with uniform node distribution. It includes network partitions called 3D subspaces/clusters of equal member nodes, an energy-efficient routing centroid (RC) nodes election and data routing algorithm...
September 16, 2017: Sensors
https://www.readbyqxmd.com/read/28915436/radiation-hazards-and-lifetime-risk-assessment-of-tap-water-using-liquid-scintillation-counting-and-high-resolution-gamma-spectrometry
#5
K F Al-Shboul, A E Alali, I M Batayneh, H Y Al-Khodire
In this work, two complementary techniques, viz. liquid scintillation counting and high-resolution gamma spectrometry are utilized to analyze radionuclides concentrations in tap water of Irbid governorate, Jordan, and study their correlation. Gross alpha and gross beta concentrations, in the tap water samples collected from the nine districts of Irbid governorate, ranged from <82 to 484 mBq/L with a mean of 295 mBq/L and from <216 to 984 mBq/L with a mean of 611 mBq/L, respectively. Furthermore, gamma spectrometry analysis, for the tap water samples, shows that the activity concentrations of (226)Ra, (232)Th, and (40)K ranged between <19 and 302 mBq/L, 24 to 119 mBq/L, and <101 to 342 mBq/L, respectively...
September 12, 2017: Journal of Environmental Radioactivity
https://www.readbyqxmd.com/read/28903112/savoring-sweet-sugars-in-infant-and-toddler-feeding
#6
Robert D Murray
During the first years of life, the sweetness of sugars has a capacity to hinder or to help in laying a strong nutritional foundation for food preferences that often extend over a lifetime. Aside from supplying 4 g/kcal of energy, sugars are non-nutritive. However, sugars have a powerful attribute, sweetness, which strongly influences human food preference. A child's first relationship with sweet taste begins even before birth and continues to evolve throughout complementary feeding. The sweetness of breastmilk encourages consumption and soothes the neonate...
2017: Annals of Nutrition & Metabolism
https://www.readbyqxmd.com/read/28892101/zero-power-infrared-digitizers-based-on-plasmonically-enhanced-micromechanical-photoswitches
#7
Zhenyun Qian, Sungho Kang, Vageeswar Rajaram, Cristian Cassella, Nicol E McGruer, Matteo Rinaldi
State-of-the-art sensors use active electronics to detect and discriminate light, sound, vibration and other signals. They consume power constantly, even when there is no relevant data to be detected, which limits their lifetime and results in high costs of deployment and maintenance for unattended sensor networks. Here we propose a device concept that fundamentally breaks this paradigm-the sensors remain dormant with near-zero power consumption until awakened by a specific physical signature associated with an event of interest...
September 11, 2017: Nature Nanotechnology
https://www.readbyqxmd.com/read/28878307/a-method-for-combined-retinal-vascular-and-tissue-oxygen-tension-imaging
#8
Anthony E Felder, Justin Wanek, Michael R Tan, Norman P Blair, Mahnaz Shahidi
The retina requires adequate oxygenation to maintain cellular metabolism and visual function. Inner retinal oxygen metabolism is directly related to retinal vascular oxygen tension (PO2) and inner retinal oxygen extraction fraction (OEF), whereas outer retinal oxygen consumption (QO2) relies on oxygen availability by the choroid and is contingent upon retinal tissue oxygen tension (tPO2) gradients across the retinal depth. Thus far, these oxygenation and metabolic parameters have been measured independently by different techniques in separate animals, precluding a comprehensive and correlative assessment of retinal oxygenation and metabolism dynamics...
September 6, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28864986/the-role-of-maternal-nutrition-during-the-periconceptional-period-and-its-effect-on-offspring-phenotype
#9
Tom P Fleming, Judith J Eckert, Oleg Denisenko
The early preimplantation embryo has been rigorously studied for decades to understand inherent reproductive and developmental mechanisms driving its morphogenesis from before fertilisation through to and beyond implantation. Recent research has demonstrated that this short developmental window is also critical for the embryo's interaction with external, maternal factors, particularly nutritional status. Here, maternal dietary quality has been shown to alter the pattern of development in an enduring way that can influence health throughout the lifetime...
2017: Advances in Experimental Medicine and Biology
https://www.readbyqxmd.com/read/28843690/process-efficiency-of-casein-separation-from-milk-using-polymeric-spiral-wound-microfiltration-membranes
#10
D Mercier-Bouchard, S Benoit, A Doyen, M Britten, Y Pouliot
Microfiltration is largely used to separate casein micelles from milk serum proteins (SP) to produce a casein-enriched retentate for cheese making and a permeate enriched in native SP. Skim milk microfiltration is typically performed with ceramic membranes and little information is available about the efficiency of spiral-wound (SW) membranes. We determined the effect of SW membrane pore size (0.1 and 0.2 µm) on milk protein separation in total recirculation mode with a transmembrane pressure gradient to evaluate the separation efficiency of milk proteins and energy consumption after repeated concentration and diafiltration (DF)...
August 23, 2017: Journal of Dairy Science
https://www.readbyqxmd.com/read/28843574/the-7-factor-hybrid-model-of-dsm-5-ptsd-symptoms-and-alcohol-consumption-and-consequences-in-a-national-sample-of-trauma-exposed-veterans
#11
Meredith Claycomb Erwin, Ruby Charak, Tory A Durham, Cherie Armour, Xin Lv, Steven M Southwick, Jon D Elhai, Robert H Pietrzak
The purpose of the present study was to investigate associations between the 7-factor hybrid model of DSM-5 posttraumatic stress disorder (PTSD) symptoms, which includes intrusions, avoidance, negative affect, anhedonia, externalizing behaviors, anxious arousal, and dysphoric arousal symptoms, and alcohol consumption and consequences. A nationally representative sample of 916 trauma-exposed U.S. military veterans were administered the Trauma History Screen, PTSD Checklist-5, and Alcohol Use Disorders Identification Test...
August 6, 2017: Journal of Anxiety Disorders
https://www.readbyqxmd.com/read/28840117/a-new-energy-efficient-topology-for-wireless-body-area-networks
#12
Ameneh Rostampour, Neda Moghim, Marjan Kaedi
Wireless body area networks consist of several devices placed on the human body, sensing vital signs and providing remote recognition of health disorders. Low power consumption is crucial in these networks. A new energy-efficient topology is provided in this paper, considering relay and sensor nodes' energy consumption and network maintenance costs. In this topology design, relay nodes, placed on the cloth, are used to help the sensor nodes forwarding data to the sink. Relay nodes' situation is determined such that the relay nodes' energy consumption merges the uniform distribution...
July 2017: Journal of Medical Signals and Sensors
https://www.readbyqxmd.com/read/28833688/effects-of-high-alcohol-intake-alcohol-related-symptoms-and-smoking-on-mortality
#13
John B Whitfield, Andrew C Heath, Pamela A F Madden, J George Landers, Nicholas G Martin
BACKGROUND AND AIMS: Both high alcohol intake and alcohol dependence increase mortality, and both are associated with smoking. We aimed to compare the associations of quantity of alcohol, number of alcohol-related symptoms, and smoking history with all-cause mortality, and to assess symptom count and smoking history as confounders or mediators of the effects of high alcohol intake. DESIGN: Survival was analysed by Cox regression with sex, body mass index, alcohol intake (overall and by beverage), maximum drinks on any day, alcohol symptom count and smoking status as potential predictors of age at death...
August 22, 2017: Addiction
https://www.readbyqxmd.com/read/28830264/the-lifestyle-influence-on-alcoholic-pancreatitis-versus-alcoholic-liver-disease-a-case-control-study
#14
Maria Inês Canha, Bárbara Oliveiros, Célia Franco, Pedro Figueiredo
OBJECTIVE: To evaluate the association of lifestyle with the development of alcoholic liver disease (ALD) or alcoholic pancreatitis (AlcP). METHODS: A case-control study was conducted on 80 patients attending a tertiary university hospital, subdivided into three groups: ALD (n = 34), AlcP (n = 21) and a control (CT) group (n = 25) of alcohol abusers without clinical evidence of hepatic or pancreatic disease. Participants were interviewed regarding alcohol consumption, tobacco use and diet...
August 22, 2017: Scandinavian Journal of Gastroenterology
https://www.readbyqxmd.com/read/28818200/relationship-of-alcohol-consumption-to-all-cause-cardiovascular-and-cancer-related-mortality-in-u-s-adults
#15
MULTICENTER STUDY
Bo Xi, Sreenivas P Veeranki, Min Zhao, Chuanwei Ma, Yinkun Yan, Jie Mi
BACKGROUND: Previous studies have revealed inconsistent findings regarding the association of light to moderate alcohol consumption with cardiovascular disease (CVD) and cancer mortality. OBJECTIVES: The aim of this study was to examine the association between alcohol consumption and risk of mortality from all causes, cancer, and CVD in U.S. adults. METHODS: Data were obtained by linking 13 waves of the National Health Interview Surveys (1997 to 2009) to the National Death Index records through December 31, 2011...
August 22, 2017: Journal of the American College of Cardiology
https://www.readbyqxmd.com/read/28810812/are-perceptions-of-social-norms-regarding-peer-alcohol-and-other-drug-use-associated-with-personal-use-in-danish-adolescents
#16
Lotte Vallentin-Holbech, Birthe Marie Rasmussen, Christiane Stock
AIMS: This study aims to describe norm perceptions among Danish pupils aged 13-17 years related to the prevalence of personal lifetime use of alcohol and other drugs (AODs). Further we examined if norm perceptions were associated with personal lifetime AOD use. METHOD: The data were collected as baseline data in the trial The GOOD Life. A total of 2601 pupils from 42 public schools in the Region of Southern Denmark completed an online questionnaire measuring personal lifetime AOD use and personal approval of use...
August 1, 2017: Scandinavian Journal of Public Health
https://www.readbyqxmd.com/read/28810238/long-term-weight-maintenance-strategies-are-experienced-as-a-burden-by-persons-who-have-lost-weight-compared-to-persons-with-a-lifetime-normal-stable-weight
#17
Maaike Kruseman, Noémi Schmutz, Isabelle Carrard
OBJECTIVE: To assess dietary intake, eating patterns, physical activity and eating behaviors, and to explore strategies and perceptions of the experience of weight maintenance in weight loss maintainers (weight loss maintenance (WLM) ≥ 10% weight loss maintained for ≥1 year) and in matched controls with a lifetime stable normal weight. METHODS: Volunteers (32) were recruited by a snowball procedure in this cross-sectional, mixed-methods study. Diet, physical activity, and eating behaviors were assessed with validated questionnaires...
2017: Obesity Facts
https://www.readbyqxmd.com/read/28808115/human-papillomavirus-in-oropharyngeal-cancer-in-canada-analysis-of-5-comprehensive-cancer-centres-using-multiple-imputation
#18
MULTICENTER STUDY
Steven Habbous, Karen P Chu, Harold Lau, Melissa Schorr, Mathieos Belayneh, Michael N Ha, Scott Murray, Brian O'Sullivan, Shao Hui Huang, Stephanie Snow, Matthew Parliament, Desiree Hao, Winson Y Cheung, Wei Xu, Geoffrey Liu
BACKGROUND: The incidence of oropharyngeal cancer has risen over the past 2 decades. This rise has been attributed to human papillomavirus (HPV), but information on temporal trends in incidence of HPV-associated cancers across Canada is limited. METHODS: We collected social, clinical and demographic characteristics and p16 protein status (p16-positive or p16-negative, using this immunohistochemistry variable as a surrogate marker of HPV status) for 3643 patients with oropharyngeal cancer diagnosed between 2000 and 2012 at comprehensive cancer centres in British Columbia (6 centres), Edmonton, Calgary, Toronto and Halifax...
August 14, 2017: CMAJ: Canadian Medical Association Journal, Journal de L'Association Medicale Canadienne
https://www.readbyqxmd.com/read/28805924/measures-of-lamb-production-efficiency-in-a-temperate-grass-based-system-differing-in-ewe-prolificacy-potential-and-stocking-rate
#19
E Earle, T M Boland, N McHugh, P Creighton
The objective of this study was to quantify the effects of ewe prolificacy potential (PP; predicted number of lambs born ewe yr), as dictated by sire breed type, and stocking rate (SR; ewes ha) on ewe production efficiency (kg lamb live weight weaned:kg ewe live weight mated), lamb growth, lamb carcass output, and dry matter (DM; kg) and energy (UFL; unit of energy kg DM) consumption (in the form of both grazed and conserved herbage, concentrate supplementation, and total) in a temperate grass-based lamb production system...
August 2017: Journal of Animal Science
https://www.readbyqxmd.com/read/28802169/human-health-risk-assessment-on-the-consumption-of-fruits-and-vegetables-containing-residual-pesticides-a-cancer-and-non-cancer-risk-benefit-perspective
#20
Mathieu Valcke, Marie-Hélène Bourgault, Louis Rochette, Louise Normandin, Onil Samuel, Denis Belleville, Carole Blanchet, Denise Phaneuf
Pesticide residues in food is a public health concern. This study aimed to evaluate health risk and benefit associated with chronic consumption of fruits and vegetables (F&V) containing residual pesticides in the province of Quebec, Canada. Based on a representative sample of Quebecers (n=4727, aged 1-79) enrolled in the Canadian nutrition survey, population's mean chronic dietary exposure through consumption of F&V was evaluated for 169 different pesticide active ingredients (PAI), including 135 for which toxicological reference values (TRV) were available in the literature...
August 9, 2017: Environment International
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