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https://www.readbyqxmd.com/read/28822938/do-natural-biofilm-impact-nzvi-mobility-and-interactions-with-porous-media-a-column-study
#1
Marc Crampon, Jennifer Hellal, Christophe Mouvet, Guillaume Wille, Caroline Michel, Anke Wiener, Juergen Braun, Patrick Ollivier
Nanoparticles (NP) used as remediation agents for groundwater treatment may interact with biofilms naturally present, altering NP mobility and/or reactivity and thereby NP effectiveness. The influence of the presence of a multi species biofilm on the mobility of two types of zero-valent iron NP (nZVI; NANOFER 25S and optimized NANOFER STAR, NanoIron s.r.o. (Czech Republic)) was tested in laboratory experiments with columns mimicking aquifer conditions. Biofilms were grown in columns filled with sand in nitrate reducing conditions using groundwater from an industrial site as inoculum...
August 17, 2017: Science of the Total Environment
https://www.readbyqxmd.com/read/28822899/a-coupled-diffusion-fluid-pressure-model-to-predict-cell-density-distribution-for-cells-encapsulated-in-a-porous-hydrogel-scaffold-under-mechanical-loading
#2
Feihu Zhao, Ted J Vaughan, Myles J Mc Garrigle, Laoise M McNamara
Tissue formation within tissue engineering (TE) scaffolds is preceded by growth of the cells throughout the scaffold volume and attachment of cells to the scaffold substrate. It is known that mechanical stimulation, in the form of fluid perfusion or mechanical strain, enhances cell differentiation and overall tissue formation. However, due to the complex multi-physics environment of cells within TE scaffolds, cell transport under mechanical stimulation is not fully understood. Therefore, in this study, we have developed a coupled multiphysics model to predict cell density distribution in a TE scaffold...
August 3, 2017: Computers in Biology and Medicine
https://www.readbyqxmd.com/read/28822894/increased-minimum-legal-age-for-the-sale-of-alcohol-in-the-netherlands-as-of-2014-the-effect-on-alcohol-sellers-compliance-after-one-and-two-years
#3
Karen Schelleman-Offermans, Ruud T J Roodbeen, Paul H H M Lemmens
BACKGROUND: As of January 2014, the Dutch minimum legal age for the sale and purchase of all alcoholic beverages has increased from 16 to 18 years of age. The effectiveness of a minimum legal age policy in controlling the availability of alcohol for adolescents depends on the extent to which this minimum legal age is complied with in the field. The main aim of the current study is to investigate, for a country with a West-European drinking culture, whether raising the minimum legal age for the sale of alcohol has influenced compliance rates among Dutch alcohol vendors...
August 17, 2017: International Journal on Drug Policy
https://www.readbyqxmd.com/read/28822588/characterization-of-reactive-flow-induced-evolution-of-carbonate-rocks-using-digital-core-analysis-part-2-calculation-of-the-evolution-of-percolation-and-transport-properties
#4
Jafar Qajar, Christoph H Arns
Percolation of reactive fluids in carbonate rocks affects the rock microstructure and hence changes the rock macroscopic properties. In Part 1 paper, we examined the voxel-wise evolution of microstructure of the rock in terms of mineral dissolution/detachment, mineral deposition, and unchanged regions. In the present work, we investigate the relationships between changes in two characteristic transport properties, i.e. permeability and electrical conductivity and two critical parameters of the pore phase, i...
August 12, 2017: Journal of Contaminant Hydrology
https://www.readbyqxmd.com/read/28820145/endoscopic-ultrasound-guided-gastroenterostomy-are-we-ready-for-prime-time
#5
REVIEW
Mihai Rimbas, Alberto Larghi, Guido Costamagna
Interventional endoscopic ultrasonography (EUS) is currently becoming the less invasive therapeutic approach for the drainage of pancreatic fluid collections, of acute cholecystitis in patients unfit for surgery and for biliary drainage after failed endoscopic retrograde cholangiopancreatography. In addition, EUS-guided gastroenterostomy (EUS-GE) has recently emerged as a feasible procedure to treat patients with gastric outlet obstruction, as an alternative to surgery or to standard endoscopy when endoscopic stent placement is not possible...
July 2017: Endoscopic Ultrasound
https://www.readbyqxmd.com/read/28818414/utilization-of-away-from-home-food-establishments-dietary-approaches-to-stop-hypertension-dietary-pattern-and-obesity
#6
Tarra L Penney, Nicholas R V Jones, Jean Adams, Eva R Maguire, Thomas Burgoine, Pablo Monsivais
INTRODUCTION: Eating meals away from home has been associated with the consumption of unhealthy foods and increased body weight. However, more rigorous assessment of the contribution of different types of away-from-home food establishments to overall diet quality and obesity is minimal. This study examined usage of these food establishments, accordance to the Dietary Approaches to Stop Hypertension (DASH) dietary pattern and obesity status in a nationally representative sample of adults in the United Kingdom...
August 14, 2017: American Journal of Preventive Medicine
https://www.readbyqxmd.com/read/28817779/the-price-may-not-be-right-the-value-of-comparison-shopping-for-prescription-drugs
#7
Sanjay Arora, Neeraj Sood, Sophie Terp, Geoffrey Joyce
OBJECTIVES: To measure variations in drug prices across and within zip codes that may reveal simple strategies to improve patients' access to prescribed medications. STUDY DESIGN: We compared drug prices at different types of pharmacies across and within local markets. In-store prices were compared with a Web-based service providing discount coupons for prescription medications. Prices were collected for 2 generic antibiotics because most patients have limited experience with them and are less likely to know the price ranges for them...
July 2017: American Journal of Managed Care
https://www.readbyqxmd.com/read/28817653/perilymph-pharmacokinetics-of-marker-applied-through-a-cochlear-implant-in-guinea-pigs
#8
Alec Salt, Jared Hartsock, Ruth Gill, Daniel Smyth, Jonathon Kirk, Kristien Verhoeven
Patients undergoing cochlear implantation could benefit from a simultaneous application of drugs into the ear, helping preserve residual low-frequency hearing and afferent nerve fiber populations. One way to apply drugs is to incorporate a cannula into the implant, through which drug solution is driven. For such an approach, perilymph concentrations achieved and the distribution in the ear over time have not previously been documented. We used FITC-labeled dextran as a marker, delivering it into perilymph of guinea pigs at 10 or 100 nL/min though a cannula incorporated into a cochlear implant with the outlet in the mid basal turn...
2017: PloS One
https://www.readbyqxmd.com/read/28817430/beyond-citation-rates-a-real-time-impact-analysis-of-health-professions-education-research-using-altmetrics
#9
Lauren A Maggio, Holly S Meyer, Anthony R Artino
PURPOSE: To complement traditional citation-based metrics, which take years to accrue and indicate only academic attention, academia has begun considering altmetrics or alternative metrics, which provide timely feedback on an article's impact by tracking its dissemination via nontraditional outlets, such as blogs and social media, across audiences. This article describes altmetrics and examines altmetrics attention, outlets used, and top article characteristics for health professions education (HPE) research...
August 16, 2017: Academic Medicine: Journal of the Association of American Medical Colleges
https://www.readbyqxmd.com/read/28816109/assessing-the-validity-of-commercial-and-municipal-food-environment-data-sets-in-vancouver-canada
#10
Madeleine Ig Daepp, Jennifer Black
OBJECTIVE: The present study assessed systematic bias and the effects of data set error on the validity of food environment measures in two municipal and two commercial secondary data sets. DESIGN: Sensitivity, positive predictive value (PPV) and concordance were calculated by comparing two municipal and two commercial secondary data sets with ground-truthed data collected within 800 m buffers surrounding twenty-six schools. Logistic regression examined associations of sensitivity and PPV with commercial density and neighbourhood socio-economic deprivation...
August 17, 2017: Public Health Nutrition
https://www.readbyqxmd.com/read/28813689/large-scale-machine-learning-of-media-outlets-for-understanding-public-reactions-to-nation-wide-viral-infection-outbreaks
#11
Sungwoon Choi, Jangho Lee, Min-Gyu Kang, Hyeyoung Min, Yoon-Seok Chang, Sungroh Yoon
From May to July 2015, there was a nation-wide outbreak of Middle East respiratory syndrome (MERS) in Korea. MERS is caused by MERS-CoV, an enveloped, positive-sense, single stranded RNA virus belonging to the family Coronaviridae. Despite expert opinions that the danger of MERS might be exaggerated, there was an overreaction by the public according to the Korean mass media, which led to a noticeable reduction in social and economic activities during the outbreak. To explain this phenomenon, we presumed that machine learning-based analysis of media outlets would be helpful and collected a number of Korean mass media articles and short-text comments produced during the 10-week outbreak...
August 13, 2017: Methods: a Companion to Methods in Enzymology
https://www.readbyqxmd.com/read/28809149/cumulibacter-manganitolerans-gen-nov-sp-nov-isolated-from-sludge-of-a-manganese-mine
#12
Jing Huang, Jiahong Li, Min Cao, Shuijiao Liao, Gejiao Wang
A Gram-stain-positive actinobacterium, designated as strain 2-36T, was isolated from sludge of a sewage outlet in a manganese mine. Phylogenetic analysis of 16S rRNA genes assigned strain 2-36T in a single lineage in the family Geodermatophilaceae and closely related to Modestobacter roseus KLBMP 1279T (93.8 % similarity), Blastococcus saxobsidens BC444T (93.1 %) and Geodermatophilus aquaeductus BMG801T (92.8 %). It contained iso-C16 : 0, iso-C15 : 0, C17 : 1ω6c, iso-C14 : 0 and summed feature 3 (C16 : 1ω6c and/or C16 : 1ω7c) as the major fatty acids (>5 %), with MK-9(H4), MK-8(H4) and MK-9(H6) as the quinones...
August 15, 2017: International Journal of Systematic and Evolutionary Microbiology
https://www.readbyqxmd.com/read/28808906/racial-disparities-in-hpv-related-knowledge-attitudes-and-beliefs-among-african-american-and-white-women-in-the-usa
#13
Ashley Ojeaga, Ernest Alema-Mensah, Desiree Rivers, Ijeoma Azonobi, Brian Rivers
The objective of this study was to assess the differences in HPV-related knowledge, attitudes, and beliefs among African American and non-Hispanic white women and to determine their communication preferences for cancer-related information. Data was obtained from the National Cancer Institute's (NCI) 2014 Health Interview National Trends Survey (HINTS), a cross-sectional survey of US adults 18 years of age or older. Descriptive statistics, bivariate, and multivariate logistic regression were used to identify differences in awareness and knowledge...
August 14, 2017: Journal of Cancer Education: the Official Journal of the American Association for Cancer Education
https://www.readbyqxmd.com/read/28807625/role-of-urodynamics-in-management-of-urethral-diverticulum-in-females
#14
Kuan-Jung Lin, Yu-Hua Fan, Alex Tong-Long Lin
BACKGROUND: Few studies have focused on the urodynamic findings of urethral diverticula (UD). We characterized the symptoms and urodynamic findings in women with UD. METHODS: A retrospective review of all women in a single center having surgical treatment for symptomatic UD between May 2004 and September 2014 was done. Lower urinary tract symptoms were evaluated with International Prostate Symptom Score and Overactive Bladder Symptom Score questionnaires. All patients underwent magnetic resonance imaging and videourodynamic study (VUDS) prior to surgery, and postoperative evaluation with VUDS...
August 11, 2017: Journal of the Chinese Medical Association: JCMA
https://www.readbyqxmd.com/read/28805880/vacuum-filling-of-complex-microchannels-with-liquid-metal
#15
Yiliang Lin, Olivia Gordon, M Rashed Khan, Neyanel Vasquez, Jan Genzer, Michael D Dickey
This paper describes the utilization of vacuum to fill complex microchannels with liquid metal. Microchannels filled with liquid metal are useful as conductors for soft and stretchable electronics, as well as for microfluidic components such as electrodes, antennas, pumps, or heaters. Liquid metals are often injected manually into the inlet of a microchannel using a syringe. Injection can only occur if displaced air in the channels has a pathway to escape, which is usually accomplished using outlets. The positive pressure (relative to atmosphere) needed to inject fluids can also cause leaks or delamination of the channels during injection...
August 14, 2017: Lab on a Chip
https://www.readbyqxmd.com/read/28805778/-metal-self-expanding-stents-for-malignant-obstruction-of-stomach-outlet-and-duodenum
#16
A V Shabunin, S S Lebedev, G M Chechenin, Yu V Barinov, Yu V Sidorova, Z A Bagateliya, A V Vardanyan, D D Dolidze
AIM: To compare different types of self-expanding stents (partially coated or uncovered) for malignant pyloroduodenal obstruction (MPDO). MATERIAL AND METHODS: 89 MPDO patients underwent stenting at the Botkin City Hospital (Moscow) for the period 2008-2016. The causes of malignant obstruction were: stomach cancer - 53 (59.5%), pancreatic cancer - 31 (34.8%), compression by retroperitoneal lymph nodes - 3 (3.4%), duodenal cancer - 2 (2.2%). Patients were divided into two homogeneous groups...
2017: Khirurgiia
https://www.readbyqxmd.com/read/28803883/the-provision-of-emergency-contraception-in-kinshasa-s-private-sector-pharmacies-experiences-of-mystery-clients
#17
Julie H Hernandez, Mbadu Muanda Fidèle, Mélissa Garcia, Annie Glover
OBJECTIVES: Recent programmatic and research efforts on addressing gaps in health systems of low-income countries increasingly see task shifting, i.e. the provision of healthcare by non-medically trained personnel, as a possible solution to increase the availability of specific services and commodities. In Kinshasa, private-sector pharmacies are the primary and preferred provider of family planning (FP) methods, and thus constitute a potential resource for expanding access to specific contraceptives...
August 10, 2017: Contraception
https://www.readbyqxmd.com/read/28802872/smoking-and-binge-drinking-among-adolescents-ontario-canada-does-the-school-neighbourhood-matter
#18
Kristian Larsen, Teresa To, Hyacinth M Irving, Angela Boak, Hayley A Hamilton, Robert E Mann, Robert Schwartz, Guy E J Faulkner
This study examines whether access to alcohol and tobacco around the school relates to higher or lower odds of cigarette smoking and binge-drinking among Ontario high school students. The 2013 Ontario Student Drug Use and Health Survey provides data on self-reported smoking and drinking, individual covariates and subjective socio-economic status for 6142 students (grades 9-12) in Ontario, Canada. Locations of schools were geocoded and 1.6km network buffers defined the school neighbourhoods. Multi-level logistic regression examines individual and school neighbourhood factors with smoking and binge drinking as the dependent variable...
August 10, 2017: Health & Place
https://www.readbyqxmd.com/read/28801005/pain-and-policy-studies-group-two-decades-of-working-to-address-regulatory-barriers-to-improve-opioid-availability-and-accessibility-around-the-world
#19
James F Cleary, Martha A Maurer
For two decades, the Pain & Policy Studies Group (PPSG), a global research program at the University of Wisconsin Carbone Cancer Center, has worked passionately to fulfil its mission of improving pain relief by achieving balanced access to opioids worldwide. PPSG's early work highlighted the conceptual framework of balance leading to the development of the seminal guidelines and criteria for evaluating opioid policy. It has collaborated at the global level with UN agencies to promote access to opioids and has developed a unique model of technical assistance to help national governments assess regulatory barriers to essential medicines for pain relief and amend existing or develop new legislation that facilitates appropriate and adequate opioid prescribing according to international standards...
August 8, 2017: Journal of Pain and Symptom Management
https://www.readbyqxmd.com/read/28799279/oesophageal-replacement-with-stomach-a-personal-series-and-review-of-published-experience
#20
Karim Awad, Bruce Jaffray
AIM: To describe the outcomes of oesophageal replacement using stomach in children. METHODS: All children undergoing oesophageal replacement in a regional centre were prospectively recorded in a customised database and subjected to continual follow up. Complications within 30 days were classified as early, and all other complications were classified as late. Outcomes were related to a comprehensive analysis of published experience where studies were classified as having long-term follow up if the median duration exceeded 5 years...
August 11, 2017: Journal of Paediatrics and Child Health
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