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https://www.readbyqxmd.com/read/28107730/systemic-atherosclerosis-and-voiding-symptom
#1
A Ozgur Yeniel, A Mete Ergenoglu, Reci Meseri, Anıl Ari, Ceren Sancar, Ismail Mete Itil
OBJECTIVE: To evaluate the effect of atherosclerosis on the storage and voiding symptoms of the bladder in women with overactive bladder (OAB). STUDY DESIGN: We retrospectively reviewed the charts of women with OAB who were evaluated between 2013 and 2015 in our urogynecology unit. Charts were assessed for history, examination findings, urinary diary, quality of life (QOL) questionnaires, urodynamic studies (UDSs), and four main risk factors for atherosclerosis: hypertension, diabetes mellitus, smoking, and hyperlipidemia...
January 9, 2017: European Journal of Obstetrics, Gynecology, and Reproductive Biology
https://www.readbyqxmd.com/read/28107632/structural-changes-in-acetophenone-fluid-films-as-a-function-of-nano-scale-thickness
#2
Samantha L Nania, Scott K Shaw
We report experimental observations of a developing fluid-solid interface by examining acetophenone films of varying thicknesses, supported on solid silver substrates. A dynamic wetting technique provides experimental control of fluid film thickness as a function of rotational velocity. Ellipsometry and infrared reflection absorption spectroscopy data are analyzed to provide absolute film thickness and details of the changing chemical environment for varying film thickness. This data is compared to theoretical models that predict fluid film thicknesses based on physical-chemical properties of the acetophenone/silver pair...
January 20, 2017: Langmuir: the ACS Journal of Surfaces and Colloids
https://www.readbyqxmd.com/read/28106978/variations-of-polymer-porous-surface-structures-via-the-time-sequenced-dosing-of-mixed-solvents
#3
Erik Wrzecionko, Antonín Minařík, Petr Smolka, Martin Minařík, Petr Humpolíček, Petra Rejmontová, Aleš Mráček, Magda Minaříková, Lenka Gřundělová
A new approach to polystyrene surface treatment via the time-sequenced dispensing of a good / poor solvent mixture on the rotating surface of treated substrate is presented in this study. It is demonstrated that the variation of the sequencing, together with other variables (e.g., temperature and solvent concentration), affects the size and depth of pores evolving on the polystyrene surface. A model of the surface pore creation, associated with the viscoelastic phase separation, surface tension and secondary flows caused by temperature variations and the rapid evaporation of the good solvent is proposed...
January 20, 2017: ACS Applied Materials & Interfaces
https://www.readbyqxmd.com/read/28106472/sample-preparation-for-repeated-measurements-on-a-single-liquid-droplet-using-laser-induced-breakdown-spectroscopy
#4
Violeta Lazic, Roberta Fantoni, Antonio Palucci, Massimiliano Ciaffi
We studied changes in laser-induced breakdown spectroscopy (LIBS) signal intensity with the thickness of a liquid layer placed on a solid substrate, where an easily evaporating methanol sample was used. For a certain optimal liquid film thickness we obtained a manifold increase of the LIBS signal from methanol. Progressive liquid film thinning leads to a reduction and a successive disappearance of laser-induced splashes; the latter condition drastically reduces the sample consumption and allows measurements to be repeated many times on a single liquid droplet...
January 1, 2017: Applied Spectroscopy
https://www.readbyqxmd.com/read/28106366/redox-properties-of-polyvinylamine-g-tempo-in-multilayer-films-with-sodium-poly-styrene-sulfonate
#5
Qiang Fu, Igor Zoudanov, Emil Gustafsson, Dong Yang, Leyla Soleymani, Robert H Pelton
Layer-by-layer (LbL) assemblies of polyvinylamine with grafted TEMPO moieties (PVAm-T) with sodium polystyrene sulfonate (PSS) were prepared on gold-sulfonate surfaces and the redox properties were measured by cyclic voltammetry. LbL compositions were probed by quartz crystal microbalance (wet) and ellipsometric (dry) film measurements. Approximately 30% of the TEMPO moieties in the LbL assemblies were redox-active when the total TEMPO coverage was varied up to 6 mol/m2, by either varying the TEMPO content in PVAm-T or by varying the number of LbL bilayers...
January 20, 2017: ACS Applied Materials & Interfaces
https://www.readbyqxmd.com/read/28106048/simulating-the-hydrologic-cycle-in-coal-mining-subsidence-areas-with-a-distributed-hydrologic-model
#6
Jianhua Wang, Chuiyu Lu, Qingyan Sun, Weihua Xiao, Guoliang Cao, Hui Li, Lingjia Yan, Bo Zhang
Large-scale ground subsidence caused by coal mining and subsequent water-filling leads to serious environmental problems and economic losses, especially in plains with a high phreatic water level. Clarifying the hydrologic cycle in subsidence areas has important practical value for environmental remediation, and provides a scientific basis for water resource development and utilisation of the subsidence areas. Here we present a simulation approach to describe interactions between subsidence area water (SW) and several hydrologic factors from the River-Subsidence-Groundwater Model (RSGM), which is developed based on the distributed hydrologic model...
January 20, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28106004/wetting-behavior-of-multi-walled-carbon-nanotube-nanofluids
#7
Adya Karthikeyan, Sylvain Coulombe, Anne-Marie Kietzig
Nanofluids - engineered colloidal suspensions in base liquids - have captivated the interest of researchers over the last two decades for various existing as well as emerging technological applications. The main impetus for the synthesis of such novel nanocomposite liquids is the potential to alter properties of the base liquid, such as its viscosity, thermal conductivity, and surface tension, and to introduce specific optical and magnetic properties. Numerous studies suggest trends and explanations for the effects associated with the addition of nanoparticles, and that deviation from the base liquid properties are dependent on nanoparticle concentration...
January 19, 2017: Nanotechnology
https://www.readbyqxmd.com/read/28104803/microrna-processing-enzymes-are-essential-for-survival-and-function-of-mature-retinal-pigmented-epithelial-cells-in-mice
#8
Thomas R Sundermeier, Sanae Sakami, Bhubanananda Sahu, Scott J Howell, Songqi Gao, Zhiqian Dong, Marcin Golczak, Akiko Maeda, Krzysztof Palczewski
Age-related macular degeneration (AMD) is a major cause of irreversible vision loss. The neovascular or "wet" form of AMD can be treated to a varying degree with anti-angiogenic drugs, but geographic atrophy (GA) is an advanced stage of the more prevalent "dry" form of AMD for which there is no effective treatment. Development of GA has been linked to loss of the microRNA (miRNA)-processing enzyme DICER1 in the mature retinal pigmented epithelium (RPE). This loss results in the accumulation of toxic transcripts of Alu transposable elements which activate the NLRP3 inflammasome and additional downstream pathways that compromise the integrity and function of the RPE...
January 19, 2017: Journal of Biological Chemistry
https://www.readbyqxmd.com/read/28104518/evaluation-of-the-dry-and-wet-weather-recreational-health-risks-in-a-semi-enclosed-marine-embayment-in-southern-california
#9
Keah-Ying Lim, Stella Shao, Jian Peng, Stanley B Grant, Sunny C Jiang
For many coastal regions around the world, recreational beach water quality is assessed using fecal indicator bacteria (FIB). However, the utility of FIB as indicators of recreational water illness (RWI) risk has been questioned, particularly in coastal settings with no obvious sources of human sewage. In this study we employed a source-apportionment quantitative microbial risk assessment (SA-QMRA) to assess RWI risk at a popular semi-enclosed recreational beach in Southern California (Baby Beach, City of Dana Point) with no obvious point sources of human sewage...
January 4, 2017: Water Research
https://www.readbyqxmd.com/read/28104406/a-novel-methodology-for-the-study-of-polymodal-particle-size-distributions-produced-during-continuous-wet-granulation
#10
Carlota Mendez Torrecillas, Gavin W Halbert, Dimitrios A Lamprou
It is important during powder granulation to obtain particles of a homogeneous size especially in critical situations such as pharmaceutical manufacture. To date, homogeneity of particle size distribution has been defined by the use of the d50 combined with the span of the particle size distribution, which has been found ineffective for polymodal particle size distributions. This work focuses on demonstrating the limitations of the span parameter to quantify homogeneity and proposes a novel improved metric based on the transformation of a typical particle size distribution curve into a homogeneity factor which can vary from 0 to 100%...
January 16, 2017: International Journal of Pharmaceutics
https://www.readbyqxmd.com/read/28104345/polybrominated-diphenyl-ethers-residence-time-in-soils-receiving-biosolids-application
#11
Natasha A Andrade, Laura L McConnell, Marya O Anderson, Alba Torrents, Mark Ramirez
Polybrominated diphenyl ethers (PBDEs) may enter the environment because of accumulation in biosolids followed by application to agricultural lands. No published dissipation studies are available for PBDEs in agricultural soils after biosolids application. Therefore, we conducted a 3-year study to examine the fate of PBDEs in a small-scale 0.24-ha continuously cropped field after a single biosolids application at 72.3 wet tons/ha and determined dissipation half-lives for BDE-47+BDE-99 and BDE-209. In addition, we conducted a large-scale survey of soils from 26 mostly pasture fields at 10 farms with detailed information on timing and rate of biosolids applications...
January 16, 2017: Environmental Pollution
https://www.readbyqxmd.com/read/28104341/water-level-fluctuations-influence-sediment-porewater-chemistry-and-methylmercury-production-in-a-flood-control-reservoir
#12
Chris S Eckley, Todd P Luxton, Jennifer Goetz, John McKernan
Reservoirs typically have elevated fish mercury (Hg) levels compared to natural lakes and rivers. A unique feature of reservoirs is water-level management which can result in sediment exposure to the air. The objective of this study is to identify how reservoir water-level fluctuations impact Hg cycling, particularly the formation of the more toxic and bioaccumulative methylmercury (MeHg). Total-Hg (THg), MeHg, stable isotope methylation rates and several ancillary parameters were measured in reservoir sediments (including some in porewater and overlying water) that are seasonally and permanently inundated...
January 16, 2017: Environmental Pollution
https://www.readbyqxmd.com/read/28104334/evaluation-of-factors-affecting-soil-carbon-sequestration-services-of-stormwater-wet-retention-ponds-in-varying-climate-zones
#13
L S Merriman, T L C Moore, J W Wang, D L Osmond, A M Al-Rubaei, A P Smolek, G T Blecken, M Viklander, W F Hunt
The carbon sequestration services of stormwater wet retention ponds were investigated in four different climates: U.S., Northern Sweden, Southern Sweden, and Singapore, representing a range of annual mean temperatures, growing season lengths and rainfall depths: geographic factors that were not statistically compared, but have great effect on carbon (C) accumulation. A chronosequence was used to estimate C accumulations rates; C accumulation and decomposition rates were not directly measured. C accumulated significantly over time in vegetated shallow water areas (0-30cm) in the USA (78...
January 16, 2017: Science of the Total Environment
https://www.readbyqxmd.com/read/28103993/-effects-of-hypertonic-sodium-saline-resuscitation-on-the-liver-damage-of-rats-at-early-stage-of-severe-scald
#14
J P Zhou, Z Gao, Y X Sun, X L Chen, X S Wu, F Wang
Objective: To explore the effects of hypertonic sodium saline (HSS) resuscitation on the liver damage of rats at early stage of severe scald. Methods: Fifty-six SD rats were divided into sham injury group (SI, n=8), lactated Ringer's solution group (LRS, n=24), and group HSS (n=24) according to the random number table. Rats in group SI were sham injured without resuscitation, while rats in the other two groups were reproduced deep partial-thickness to full-thickness scald model with 30% total body surface area on the back...
January 20, 2017: Zhonghua Shao Shang za Zhi, Zhonghua Shaoshang Zazhi, Chinese Journal of Burns
https://www.readbyqxmd.com/read/28103667/national-estimate-of-per-and-polyfluoroalkyl-substance-pfas-release-to-u-s-municipal-landfill-leachate
#15
Johnsie R Lang, Brent McKay Allred, Jennifer A Field, James William Levis, Morton A Barlaz
Landfills are the final stage in the life cycle of many products containing per- and polyfluoroalkyl substances (PFASs) and their presence has been reported in landfill leachate. The concentrations of 70 PFASs in 95 samples of leachate were measured in a survey of U.S. landfills of varying climates and waste ages. National release of PFASs was estimated by coupling measured concentrations for the 19 PFASs where more than 50% of samples had quantifiable concentrations, with climate-specific estimates of annual leachate volumes...
January 20, 2017: Environmental Science & Technology
https://www.readbyqxmd.com/read/28103464/-perineal-groove-a-rare-congenital-anomaly
#16
Manuel Barbosa, Nuno Alves, Natacha Fontes
Perineal groove is a rare congenital anorectal malformation, with incidence yet undetermined. It is almost exclusive to the female newborn and its embryogenic origin remains uncertain. We present a case-report of a newborn girl that was discharged from the nursery without complications. At her first appointment at primary care we noted a wet sulcus connecting the posterior vaginal commissure and the anus. This case report emphasizes the rarity of the perineal groove and the importance of a good quality history and physical examination at primary care...
October 2016: Acta Médica Portuguesa
https://www.readbyqxmd.com/read/28103270/cold-atmospheric-plasma-created-at-the-tip-of-an-elongated-flexible-capillary-using-low-electric-current-can-slow-the-progression-of-melanoma
#17
Y Binenbaum, G Ben-David, Z Gil, Ya Z Slutsker, M A Ryzhkov, J Felsteiner, Ya E Krasik, J T Cohen
INTRODUCTION: Cold Atmospheric Plasma Jet (CAPJ), with ion temperature close to room temperature, has tremendous potential in biomedical engineering, and can potentially offer a therapeutic option that allows cancer cell elimination without damaging healthy tissue. We developed a hand-held flexible device for the delivery of CAPJ to the treatment site, with a modified high-frequency pulse generator operating at a RMS voltage of <1.2 kV and gas flow in the range 0.3-3 l/min. The aims of our study were to characterize the CAPJ emitted from the device, and to evaluate its efficacy in elimination of cancer cells in-vitro and in-vivo...
2017: PloS One
https://www.readbyqxmd.com/read/28103269/wildlife-population-dynamics-in-human-dominated-landscapes-under-community-based-conservation-the-example-of-nakuru-wildlife-conservancy-kenya
#18
Joseph O Ogutu, Bernard Kuloba, Hans-Peter Piepho, Erustus Kanga
Wildlife conservation is facing numerous and mounting challenges on private and communal lands in Africa, including in Kenya. We analyze the population dynamics of 44 common wildlife species in relation to rainfall variation in the Nakuru Wildlife Conservancy (NWC), located in the Nakuru-Naivasha region of Kenya, based on ground total counts carried out twice each year from March 1996 to May 2015. Rainfall in the region was quasi-periodic with cycle periods dependent on the rainfall component and varying from 2...
2017: PloS One
https://www.readbyqxmd.com/read/28102897/controls-on-methane-occurrences-in-shallow-aquifers-overlying-the-haynesville-shale-gas-field-east-texas
#19
Jean-Philippe Nicot, Toti Larson, Roxana Darvari, Patrick Mickler, Michael Slotten, Jordan Aldridge, Kristine Uhlman, Ruth Costley
Understanding the source of dissolved methane in drinking-water aquifers is critical for assessing potential contributions from hydraulic fracturing in shale plays. Shallow groundwater in the Texas portion of the Haynesville Shale area (13,000 km(2) ) was sampled (70 samples) for methane and other dissolved light alkanes. Most samples were derived from the fresh water bearing Wilcox formations and show little methane except in a localized cluster of 12 water wells (17% of total) in a approximately 30 × 30 km(2) area in Southern Panola County with dissolved methane concentrations less than 10 mg/L...
January 19, 2017: Ground Water
https://www.readbyqxmd.com/read/28102517/effects-of-snailase-treatment-on-wettability-of-raw-cotton-yarns-in-pre-wetting-process-of-foam-sizing
#20
Bo Zhu, Jianli Liu, Weidong Gao
The main objective of the present study was to meticulously investigate an inclusive set of physicochemical properties of pre-wetted cotton yarns and optimize the snailase treatment for raw cotton yarns. Based on single factor design, effects of snailase treatment on the removal percentage of pectins and cotton waxes, wettability, and weight loss were studied in different snailase concentrations and the optimal concentration range was obtained. The Box-Behnken design was employed to determine the optimal condition of snailase treatment for achieving the maximum wettability of cotton yarns...
January 19, 2017: Applied Biochemistry and Biotechnology
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