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https://www.readbyqxmd.com/read/28549472/understanding-and-addressing-contraceptive-stockouts-to-increase-family-planning-access-and-uptake-in-senegal
#1
Leah Hasselback, Modibo Dicko, Claire Viadro, Soussaba Ndour, Oumy Ndao, Jennifer Wesson
BACKGROUND: Senegal's government has pledged to reduce contraceptive stockouts, which have been frequent in public sector health facilities. An innovative distribution system called the Informed Push Model (IPM) addresses supply chain obstacles through direct regional-to-facility delivery of contraceptives and use of private sector logistics operators. Following promising pilot results, Senegal's Ministry of Health and Social Action committed to a three-year (2013-2016) expansion of IPM to all public health facilities nationwide...
May 26, 2017: BMC Health Services Research
https://www.readbyqxmd.com/read/28542278/emerging-interdependence-between-stock-values-during-financial-crashes
#2
Jacopo Rocchi, Enoch Yan Lok Tsui, David Saad
To identify emerging interdependencies between traded stocks we investigate the behavior of the stocks of FTSE 100 companies in the period 2000-2015, by looking at daily stock values. Exploiting the power of information theoretical measures to extract direct influences between multiple time series, we compute the information flow across stock values to identify several different regimes. While small information flows is detected in most of the period, a dramatically different situation occurs in the proximity of global financial crises, where stock values exhibit strong and substantial interdependence for a prolonged period...
2017: PloS One
https://www.readbyqxmd.com/read/28511352/emission-inventory-and-environmental-distribution-of-decabromodiphenyl-ether-in-china
#3
Boya Zhang, Bu Zhao, Mengqi Yu, Jianbo Zhang
Decabromodiphenyl ether (decaBDE) is a highly brominated flame retardant that recent studies have identified as a potential persistent organic pollutant. Large amounts of decaBDE have been consumed and released in the environment in China, while no emission inventory has been available until now. In this study, a substance flow analysis was applied to establish the emission inventory of decaBDE in China from 1982 (the first year of decaBDE production in China) until 2013 based on activity data, transfer coefficients, and emission factors...
May 12, 2017: Science of the Total Environment
https://www.readbyqxmd.com/read/28501901/production-of-mycosporine-like-amino-acids-from-gracilaria-vermiculophylla-rhodophyta-cultured-through-one-year-in-an-integrated-multi-trophic-aquaculture-imta-system
#4
Marta Barceló-Villalobos, Félix L Figueroa, Nathalie Korbee, Félix Álvarez-Gómez, Maria H Abreu
This study evaluates the production of biomass and mycosporine-like amino acids (MAAs) throughout the year in Gracilaria vermiculophylla (Rhodophyta) collected in Ria de Aveiro (Portugal). The algae were grown in outdoor tanks in seawater with the addition of fishpond effluents under two different water flows (100 and 200 L h(-1)) in an integrated multi-trophic aquaculture (IMTA) system (tanks 1200 L; 1.5 m(2)) and different algal densities (3, 5, and 7 kg m(-2)). MAA content in IMTA seaweeds was significantly affected by the interaction of time and stocking density, but not by the water flow...
May 13, 2017: Marine Biotechnology
https://www.readbyqxmd.com/read/28483859/wearing-graduated-compression-stockings-augments-cutaneous-vasodilation-but-not-sweating-during-exercise-in-the-heat
#5
Naoto Fujii, Toshiya Nikawa, Bun Tsuji, Glen P Kenny, Narihiko Kondo, Takeshi Nishiyasu
The activation of cutaneous vasodilation and sweating are essential to the regulation of core temperature during exercise in the heat. We assessed the effect of graduated compression induced by wearing stockings on cutaneous vasodilation and sweating during exercise in the heat (30°C). On two separate occasions, nine young males exercised for 45 min or until core temperature reached ~1.5°C above baseline resting while wearing either (1) stockings causing graduated compression (graduate compression stockings, GCS), or (2) loose-fitting stockings without compression (Control)...
May 2017: Physiological Reports
https://www.readbyqxmd.com/read/28445647/how-will-copper-contamination-constrain-future-global-steel-recycling
#6
Katrin E Daehn, André Cabrera Serrenho, Julian M Allwood
Copper in steel causes metallurgical problems, but is pervasive in end-of-life scrap and cannot currently be removed commercially once in the melt. Contamination can be managed to an extent by globally trading scrap for use in tolerant applications and dilution with primary iron sources. However, the viability of long-term strategies can only be evaluated with a complete characterization of copper in the global steel system and this is presented in this paper. The copper concentration of flows along the 2008 steel supply chain is estimated from a survey of literature data and compared with estimates of the maximum concentration that can be tolerated in steel products...
May 10, 2017: Environmental Science & Technology
https://www.readbyqxmd.com/read/28413846/a-carbon-balance-model-for-the-great-dismal-swamp-ecosystem
#7
Rachel Sleeter, Benjamin M Sleeter, Brianna Williams, Dianna Hogan, Todd Hawbaker, Zhiliang Zhu
BACKGROUND: Carbon storage potential has become an important consideration for land management and planning in the United States. The ability to assess ecosystem carbon balance can help land managers understand the benefits and tradeoffs between different management strategies. This paper demonstrates an application of the Land Use and Carbon Scenario Simulator (LUCAS) model developed for local-scale land management at the Great Dismal Swamp National Wildlife Refuge. We estimate the net ecosystem carbon balance by considering past ecosystem disturbances resulting from storm damage, fire, and land management actions including hydrologic inundation, vegetation clearing, and replanting...
December 2017: Carbon Balance and Management
https://www.readbyqxmd.com/read/28344928/physical-and-monetary-ecosystem-service-accounts-for-europe-a-case-study-for-in-stream-nitrogen-retention
#8
Alessandra La Notte, Joachim Maes, Silvana Dalmazzone, Neville D Crossman, Bruna Grizzetti, Giovanni Bidoglio
In this paper we present a case study of integrated ecosystem and economic accounting based on the System of Environmental Economic Accounting - Experimental Ecosystem Accounts (SEEA-EEA). We develop accounts, in physical and monetary terms, for the water purification ecosystem service in Europe over a 20-year time period (1985-2005). The estimation of nitrogen retention is based on the GREEN biophysical model, within which we impose a sustainability threshold to obtain the physical indicators of capacity - the ability of an ecosystem to sustainably supply ecosystem services...
February 2017: Ecosystem Services
https://www.readbyqxmd.com/read/28342844/a-system-dynamics-modelling-approach-to-assess-the-impact-of-launching-a-new-nicotine-product-on-population-health-outcomes
#9
Andrew Hill, Oscar M Camacho
In 2012 the US FDA suggested the use of mathematical models to assess the impact of releasing new nicotine or tobacco products on population health outcomes. A model based on system dynamics methodology was developed to project the potential effects of a new nicotine product at a population level. A model representing traditional smoking populations (never, current and former smokers) and calibrated using historical data was extended to a two-product model by including electronic cigarettes use statuses. Smoking mechanisms, such as product initiation, switching, transition to dual use, and cessation, were represented as flows between smoking statuses (stocks) and the potential effect of smoking renormalisation through a feedback system...
March 22, 2017: Regulatory Toxicology and Pharmacology: RTP
https://www.readbyqxmd.com/read/28321638/wearing-graduated-compression-stockings-augments-cutaneous-vasodilation-in-heat-stressed-resting-humans
#10
Naoto Fujii, Toshiya Nikawa, Bun Tsuji, Narihiko Kondo, Glen P Kenny, Takeshi Nishiyasu
PURPOSE: We investigated whether graduated compression induced by stockings enhances cutaneous vasodilation in passively heated resting humans. METHODS: Nine habitually active young men were heated at rest using water-perfusable suits, resulting in a 1.0 °C increase in body core temperature. Heating was repeated twice on separate occasions while wearing either (1) stockings that cause graduated compression (pressures of 26.4 ± 5.3, 17.5 ± 4.4, and 6...
March 20, 2017: European Journal of Applied Physiology
https://www.readbyqxmd.com/read/28319164/modeling-the-potential-impact-on-the-us-blood-supply-of-transfusing-critically-ill-patients-with-fresher-stored-red-blood-cells
#11
Arianna Simonetti, Hussein Ezzeldin, Mikhail Menis, Stephen McKean, Hector Izurieta, Steven A Anderson, Richard A Forshee
BACKGROUND: Although some studies have suggested that transfusion recipients may have better medical outcomes if transfused with red blood cell units stored for a short time, the overall body of evidence shows mixed results. It is important to understand how using fresher stored red blood cell units for certain patient groups may affect blood availability. METHODS: Based on the Stock-and-Flow simulation model of the US blood supply developed by Simonetti et al. 2014, we evaluated a newly implemented allocation method of preferentially transfusing fresher stored red blood cell units to a subset of high-risk group of critically ill patients and its potential impact on supply...
2017: PloS One
https://www.readbyqxmd.com/read/28316562/changes-in-cigarette-smoking-initiation-cessation-and-relapse-among-u-s-adults-a-comparison-of-two-longitudinal-samples
#12
Zinan Yi, Maria E Mayorga, Kristen Hassmiller Lich, Jennifer L Pearson
BACKGROUND: The tobacco epidemic in the U.S. has matured in the past decade. However, due to rapidly changing social policy and commercial environments, tailored prevention and interventions are needed to support further reduction in smoking. METHODS: Using Tobacco Use Supplement to the Current Population Survey (TUS-CPS) 2002-2003 and 2010-2011 longitudinal cohorts, five smoking states are defined including daily-heavy, daily-light, non-daily, former and non-smoker...
2017: Tobacco Induced Diseases
https://www.readbyqxmd.com/read/28301932/degradation-of-fluorotelomer-based-polymers-contributes-to-the-global-occurrence-of-fluorotelomer-alcohol-and-perfluoroalkyl-carboxylates-a-combined-dynamic-substance-flow-and-environmental-fate-modeling-analysis
#13
Li Li, Jianguo Liu, Jianxin Hu, Frank Wania
Using coupled dynamic substance flow and environmental fate models, CiP-CAFE and BETR-Global, we investigated whether the degradation of side-chain fluorotelomer-based polymers (FTPs), mostly in waste stocks (i.e., landfills and dumps), serves as a long-term source of fluorotelomer alcohols (FTOHs) and perfluoroalkyl carboxylates (PFCAs) to the global environment. The modeling results indicate that, in the wake of the worldwide transition from long-chain to short-chain products, in-use stocks of C8 FTPs will peak and decline afterward, while the in-use stocks of C6 FTPs, and the waste stocks of both FTPs will generally grow...
March 28, 2017: Environmental Science & Technology
https://www.readbyqxmd.com/read/28301506/measuring-complexity-in-brazilian-economic-crises
#14
Letícia P D Mortoza, José R C Piqueira
Capital flows are responsible for a strong influence on the foreign exchange rates and stock prices macroeconomic parameters. In volatile economies, capital flows can change due to several types of social, political and economic events, provoking oscillations on these parameters, which are recognized as economic crises. This work aims to investigate how these two macroeconomic variables are related with crisis events by using the traditional complex measures due to Lopez-Mancini-Calbet (LMC) and to Shiner-Davison-Landsberg (SDL), that can be applied to any temporal series...
2017: PloS One
https://www.readbyqxmd.com/read/28297602/use-storage-and-disposal-of-electronic-equipment-in-switzerland
#15
Esther Thiébaud, Lorenz M Hilty, Mathias Schluep, Martin Faulstich
Electronic devices contain important resources, including precious and critical raw materials. For an efficient management of these resources, it is important to know where the devices are located, how long they are used and when and how they are disposed of. In this article, we explore the past and current quantities of electronic devices in the in-use stock and storage stock in Switzerland and quantify the flows between the use, storage and disposal phase with dynamic material flow analysis (MFA). Devices included are mobile phones, desktop and laptop computers, monitors, cathode ray tube and flat panel display televisions, DVD players, and headphones...
March 28, 2017: Environmental Science & Technology
https://www.readbyqxmd.com/read/28292984/plaques-formed-by-mutagenized-viral-populations-have-elevated-coinfection-frequencies
#16
Elizabeth R Aguilera, Andrea K Erickson, Palmy R Jesudhasan, Christopher M Robinson, Julie K Pfeiffer
The plaque assay is a common technique used to measure virus concentrations and is based upon the principle that each plaque represents a single infectious unit. As such, the number of plaques is expected to correlate linearly with the virus dilution plated, and each plaque should be formed by a single founder virus. Here, we examined whether more than one virus can contribute to plaque formation. By using genetic and phenotypic assays with genetically marked polioviruses, we found that multiple parental viruses are present in 5 to 7% of plaques, even at an extremely low multiplicity of infection...
March 14, 2017: MBio
https://www.readbyqxmd.com/read/28288391/evidence-of-phenotypic-stability-after-transduction-of-fluorescent-proteins-in-two-human-tongue-cancer-cell-lines
#17
Wei-Xin Cai, Li-Wu Zheng, Hong-Zhang Huang, Roger A Zwahlen
OBJECTIVES: This study investigated the phenotypic stability and biological properties of two human tongue cancer cell lines after transduction of fluorescent proteins. DESIGN: The human tongue cancer cell lines UM1 and UM2 were cultured with GFP and RFP lentiviral particles stock for 72h. Cells with successful transduction of fluorescent proteins were selected in a medium containing G418 antibiotics for two weeks. The proliferation rates of parental and transduced cell lines were evaluated by their population doubling time (PDT)...
July 2017: Archives of Oral Biology
https://www.readbyqxmd.com/read/28276090/the-content-and-meaning-of-administrative-work-a-qualitative-study-of-nursing-practices
#18
Lucie Michel, Mathias Waelli, Davina Allen, Etienne Minvielle
AIM: To investigate the content and meaning of nurses' administrative work. BACKGROUND: Nurses often report that administrative work keeps them away from bedside care. The content and meaning of this work remains insufficiently explored. DESIGN: Comparative case studies. METHOD: The investigation took place in 2014. It was based on 254 hours of observations and 27 interviews with nurses and staff in two contrasting units: intensive care and long term care...
March 9, 2017: Journal of Advanced Nursing
https://www.readbyqxmd.com/read/28252906/-what-nurses-see-occurrence-and-typology-of-wastes-in-medical-and-surgical-wards-a-cross-sectional-study
#19
Angelo Dante, Michela Marega, Adriana Peteani, Adriana Checchi, Loreto Lancia
AIM: To describe the occurrence and the typology of waste in the nurses clinical practice as well as the differences between the medical and surgical area. METHODS: A cross-sectional study was conducted in a north eastern Italian hospital. Data collection, conducted on 100 nurses in September 2015, was carried out using a semi-structured questionnaire consisting of 56 items and eight dimensions (Overproduction / Underutilisation, Wait, Stocks, Process, Inefficiency and Errors, Material Transport and Information Flows, Movements, Dispersion of Knowledge)...
October 2016: Professioni Infermieristiche
https://www.readbyqxmd.com/read/28250810/managing-cryptic-biodiversity-fine-scale-intralacustrine-speciation-along-a-benthic-gradient-in-alpine-whitefish-coregonus-spp
#20
Alan G Hudson, Baenz Lundsgaard-Hansen, Kay Lucek, Pascal Vonlanthen, Ole Seehausen
Whitefish (Coregonus spp.) are an important catch for many freshwater fisheries, particularly in Switzerland. In support of this, supplemental stocking of whitefish species is carried out, despite lacking complete knowledge of the extent, distribution and origin of whitefish diversity in these lakes, potentially threatening local endemics via artificial gene flow. Here, we investigate phenotypic and genetic differentiation among coexisting whitefish species spawning along a depth gradient in a subalpine Swiss lake to better delineate intralacustrine whitefish biodiversity...
March 2017: Evolutionary Applications
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