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https://www.readbyqxmd.com/read/27913957/chemical-characterization-of-rainwater-at-a-high-altitude-site-nainital-in-the-central-himalayas-india
#1
Deewan Singh Bisht, A K Srivastava, H Joshi, K Ram, N Singh, M Naja, M K Srivastava, S Tiwari
The present study investigates the chemical composition of rainwater (RW) from a high-altitude site "Nainital" (1958 m above msl) in the central Himalaya region, to understand the influence of local, regional, and long-range transport of pollutants. A total of 55 (2 in pre-monsoon and 53 in monsoon) RW samples were collected during the study period (June-September 2012) and were analyzed for major anions and cations using an ion chromatograph. The pH of precipitation events ranged from 4.95 to 6.50 (average 5...
December 2, 2016: Environmental Science and Pollution Research International
https://www.readbyqxmd.com/read/27913257/prodynorphin-and-kappa-opioid-receptor-mrna-expression-in-the-brain-relates-to-social-status-and-behavior-in-male-european-starlings
#2
Lauren V Riters, Melissa A Cordes, Sharon A Stevenson
Numerous animal species display behavioral changes in response to changes in social status or territory possession. For example, in male European starlings only males that acquire nesting sites display high rates of sexual and agonistic behavior. Past studies show that mu and delta opioid receptors regulate behaviors associated with social ascension or defeat. Opioids also act at kappa receptors, with dynorphin binding with the highest affinity; however, the role of these opioids in social behavior has not been well studied...
November 29, 2016: Behavioural Brain Research
https://www.readbyqxmd.com/read/27913067/the-financial-impact-of-clinic-no-show-rates-in-an-academic-pediatric-otolaryngology-practice
#3
Zhen Huang, Mariam Ashraf, Heather Gordish-Dressman, Pamela Mudd
PURPOSE: To investigate determinants of no-show rates in an academic pediatric otolaryngology practice including appointment time, age, sex, new patient status, payer mix, and median household income by zip code. MATERIALS AND METHODS: Retrospective chart review of clinic no-show rates and patient demographics in a free standing children's hospital and affiliated outpatient clinics across eight providers in a one-year period. RESULTS: Analysis shows that the overall no-show rate across all providers was 15% with the highest rate of 19% in the zip code with the lowest median income...
November 23, 2016: American Journal of Otolaryngology
https://www.readbyqxmd.com/read/27913026/assessing-membrane-fouling-and-the-performance-of-pilot-scale-membrane-bioreactor-mbr-to-treat-real-municipal-wastewater-during-winter-season-in-nordic-regions
#4
Khum Gurung, Mohamed Chaker Ncibi, Mika Sillanpää
In this study, the performance of a pilot-scale membrane bioreactor (MBR) to treat real municipal wastewater was assessed at low temperatures (7 to 20°C) in Nordic regions. First, the effect of low temperatures on membrane fouling was evaluated by monitoring trans-membrane pressure. A significant membrane fouling was observed when the sludge temperature inside the MBR unit was below 10°C with a 75% permeability drop, thus indicating high deterioration of the membrane performance at low temperatures. Moreover, increasing values of sludge volume index (SVI) during low temperatures showed high deterioration of sludge settleability...
November 29, 2016: Science of the Total Environment
https://www.readbyqxmd.com/read/27913025/mapping-monthly-rainfall-erosivity-in-europe
#5
Cristiano Ballabio, Pasquale Borrelli, Jonathan Spinoni, Katrin Meusburger, Silas Michaelides, Santiago Beguería, Andreas Klik, Sašo Petan, Miloslav Janeček, Preben Olsen, Juha Aalto, Mónika Lakatos, Anna Rymszewicz, Alexandru Dumitrescu, Melita Perčec Tadić, Nazzareno Diodato, Julia Kostalova, Svetla Rousseva, Kazimierz Banasik, Christine Alewell, Panos Panagos
Rainfall erosivity as a dynamic factor of soil loss by water erosion is modelled intra-annually for the first time at European scale. The development of Rainfall Erosivity Database at European Scale (REDES) and its 2015 update with the extension to monthly component allowed to develop monthly and seasonal R-factor maps and assess rainfall erosivity both spatially and temporally. During winter months, significant rainfall erosivity is present only in part of the Mediterranean countries. A sudden increase of erosivity occurs in major part of European Union (except Mediterranean basin, western part of Britain and Ireland) in May and the highest values are registered during summer months...
November 29, 2016: Science of the Total Environment
https://www.readbyqxmd.com/read/27913018/potential-impact-of-flowback-water-from-hydraulic-fracturing-on-agricultural-soil-quality-metal-metalloid-bioaccessibility-microtox-bioassay-and-enzyme-activities
#6
Season S Chen, Yuqing Sun, Daniel C W Tsang, Nigel J D Graham, Yong Sik Ok, Yujie Feng, Xiang-Dong Li
Hydraulic fracturing has advanced the development of shale gas extraction, while inadvertent spills of flowback water may pose a risk to the surrounding environment due to its high salt content, metals/metalloids (As, Se, Fe and Sr), and organic additives. This study investigated the potential impact of flowback water on four representative soils from shale gas regions in Northeast China using synthetic flowback solutions. The compositions of the solutions were representative of flowback water arising at different stages after fracturing well establishment...
November 29, 2016: Science of the Total Environment
https://www.readbyqxmd.com/read/27913014/characterizations-of-atmospheric-particulate-bound-mercury-in-the-kathmandu-valley-of-nepal-south-asia
#7
Junming Guo, Shichang Kang, Jie Huang, Qianggong Zhang, Maheswar Rupakheti, Shiwei Sun, Lekhendra Tripathee, Dipesh Rupakheti, Arnico K Panday, Mika Sillanpää, Rukumesh Paudyal
The Kathmandu Valley, located in the Himalayan foothills in Nepal, is heavily polluted. In order to investigate ambient particulate-bound mercury (Hg) in the Kathmandu Valley, a total 64 total suspended particulates (TSP) samples were collected from a sub-urban site in the Kathmandu Valley, the capital region of Nepal during a sampling period of an entire year (April 2013-April 2014). They were analyzed for ambient particulate-bound Hg (PBM) using thermal desorption combined with cold vapor atomic spectroscopy...
November 30, 2016: Science of the Total Environment
https://www.readbyqxmd.com/read/27912949/seasonal-variations-of-prescriptions-for-the-major-syndrome-types-and-manifestations-of-upper-respiratory-tract-infection-in-tradition-chinese-medicine
#8
Yuh-Hsiang Yeh, Yiing-Jenq Chou, Nicole Huang, Christy Pu, Pesus Chou
OBJECTIVE: The aim of this study is to investigate the seasonal variations of prescriptions for the three most common syndrome types and the three major manifestations of upper respiratory infections (URIs) according to the theories of traditional Chinese medicine (TCM). DESIGN: This is a cross-sectional study. We examined a random sample comprising 1,000,000 beneficiaries from the National Health Insurance program in 2005. Primary diagnoses including International Classification of Diseases, Ninth Revision, Clinical Modification Codes 460-465 and 487 were regarded as URIs, for which 160,357 prescriptions of Chinese herbal medicine were analyzed...
December 2016: Complementary Therapies in Medicine
https://www.readbyqxmd.com/read/27912915/modeling-sampling-strategies-for-determination-of-zooplankton-abundance-in-ballast-water
#9
Marco R Hernandez, Mattias L Johansson, Yanyu Xiao, Mark A Lewis, Hugh J MacIsaac
Ballast water has been a major source of non-indigenous species introductions. The International Maritime Organization has proposed performance standard that will establish an upper limit for viable organisms in discharged ballast. Here we test different sampling efforts for zooplankton in ballast water on a commercial vessel. We fit different probability density functions to find the most representative and evaluated sampling efforts necessary to achieve error rates (α, β) of <0.05. Our tests encompassed four seasonal trials and five sample volumes...
November 29, 2016: Marine Pollution Bulletin
https://www.readbyqxmd.com/read/27912863/circadian-rhythm-and-sleep-during-prolonged-antarctic-residence-at-chinese-zhongshan-station
#10
Nan Chen, Quan Wu, Yanlei Xiong, Guang Chen, Dandan Song, Chengli Xu
OBJECTIVE: Residence at Zhongshan Station (69°22'24″S, 76°22'40″E) for over 1 year exposes winter-over members to marked changes of light-dark cycle, ranging from the constant daylight of polar days to the constant darkness of polar nights, in addition to geographic and social isolation. This extreme photoperiodic environment may increase the risk of sleep disturbances and circadian desynchrony. The aim of this study was to investigate the circadian rhythm and sleep phase of Chinese winter-over expeditioners at Zhongshan Station...
December 2016: Wilderness & Environmental Medicine
https://www.readbyqxmd.com/read/27912735/the-effect-of-early-measles-vaccination-at-4-5%C3%A2-months-of-age-on-growth-at-9-and-24%C3%A2-months-of-age-in-a-randomized-trial-in-guinea-bissau
#11
S M Rasmussen, S Biering-Sørensen, S Byberg, A Andersen, M Bjerregaard-Andersen, A Rodrigues, C S Benn, C L Martins, P Aaby
BACKGROUND: Providing an early, additional measles vaccine (MV) at 4.5 months of age has been shown to reduce child mortality in low-income countries. We studied the effects on growth at 9 and 24 months of age. METHODS: A randomized controlled trial was conducted in Guinea-Bissau from 2003-2007 including 6,648 children. Children were randomized 1:1:1 to receive Edmonston-Zagreb measles vaccine at 4.5 and 9 months of age (group A), no vaccine at 4.5 months and Edmonston-Zagreb measles vaccine at 9 months (group B), or no vaccine at 4...
December 3, 2016: BMC Pediatrics
https://www.readbyqxmd.com/read/27912136/modeling-the-interannual-variability-of-microbial-quality-metrics-of-irrigation-water-in-a-pennsylvania-stream
#12
Eun-Mi Hong, Daniel Shelton, Yakov A Pachepsky, Won-Ho Nam, Cary Coppock, Richard Muirhead
Knowledge of the microbial quality of irrigation waters is extremely limited. For this reason, the US FDA has promulgated the Produce Rule, mandating the testing of irrigation water sources for many farms. The rule requires the collection and analysis of at least 20 water samples over two to four years to adequately evaluate the quality of water intended for produce irrigation. The objective of this work was to evaluate the effect of interannual weather variability on surface water microbial quality. We used the Soil and Water Assessment Tool model to simulate E...
November 29, 2016: Journal of Environmental Management
https://www.readbyqxmd.com/read/27912106/a-multicenter-randomized-controlled-trial-for-bright-light-therapy-in-adults-with-intellectual-disabilities-and-depression-study-protocol-and-obstacle-management
#13
Pauline C M Hamers, Heleen M Evenhuis, Heidi Hermans
Due to the limited cognitive and communicative abilities of adults with intellectual disabilities (ID), current treatment options for depression are often limited to lifestyle changes and pharmacological treatment. Bright light therapy (BLT) is an effective intervention for both seasonal and non-seasonal depression in the general population. BLT is an inexpensive, easy to carry out intervention with minimal side effects. However, knowledge on its anti-depressant effect in adults with ID is lacking. Obstacles in realizing a controlled intervention study in this particular study population may have contributed to this lack...
November 29, 2016: Research in Developmental Disabilities
https://www.readbyqxmd.com/read/27912069/immunogenicity-and-safety-of-southern-hemisphere-quadrivalent-inactivated-influenza-vaccine-a-phase-iii-open-label-study-of-adults-in-brazil
#14
Cristiano A F Zerbini, Rodrigo Ribeiro Dos Santos, Maria Jose Nunes, Jyoti Soni, Ping Li, Varsha K Jain, Opokua Ofori-Anyinam
The World Health Organization influenza forecast now includes an influenza B strain from each of the influenza B lineages (B/Yamagata and B/Victoria) for inclusion in seasonal influenza vaccines. Traditional trivalent influenza vaccines include an influenza B strain from one lineage, but because two influenza B lineages frequently co-circulate, the effectiveness of trivalent vaccines may be reduced in seasons of influenza B vaccine-mismatch. Thus, quadrivalent vaccines may potentially reduce the burden of influenza compared with trivalent vaccines...
November 29, 2016: Brazilian Journal of Infectious Diseases
https://www.readbyqxmd.com/read/27912028/formation-and-persistence-of-brine-on-mars-experimental-simulations-throughout-the-diurnal-cycle-at-the-phoenix-landing-site
#15
E Fischer, G M Martínez, N O Rennó
In the last few years, water ice and salts capable of melting this ice and producing liquid saline water (brine) have been detected on Mars. Moreover, indirect evidence for brine has been found in multiple areas of the planet. Here, we simulate full diurnal cycles of temperature and atmospheric water vapor content at the Phoenix landing site for the first time and show experimentally that, in spite of the low Mars-like chamber temperature, brine forms minutes after the ground temperature exceeds the eutectic temperature of salts in contact with water ice...
December 2, 2016: Astrobiology
https://www.readbyqxmd.com/read/27912017/cyanobacteria-facilitate-parasite-epidemics-in-daphnia
#16
C Tellenbach, N Tardent, F Pomati, B Keller, N G Hairston, J Wolinska, P Spaak
The seasonal dominance of cyanobacteria in the phytoplankton community of lake ecosystems can have severe implications for higher trophic levels. For herbivorous zooplankton such as Daphnia, cyanobacteria have poor nutritional value and some species can produce toxins affecting zooplankton survival and reproduction. Here we present another, hitherto largely unexplored aspect of cyanobacteria, namely that they can increase Daphnia susceptibility to parasites. In a 12-yr monthly time-series analysis of the Daphnia community in Greifensee (Switzerland), we observed that cyanobacteria density correlated significantly with the epidemics of a common gut parasite of Daphnia, Caullerya mesnili, regardless of what cyanobacteria species was present or whether it was colonial or filamentous...
December 2016: Ecology
https://www.readbyqxmd.com/read/27912011/reduced-snow-cover-alters-root-microbe-interactions-and-decreases-nitrification-rates-in-a-northern-hardwood-forest
#17
Patrick O Sorensen, Pamela H Templer, Lynn Christenson, Jorge Duran, Timothy Fahey, Melany C Fisk, Peter M Groffman, Jennifer L Morse, Adrien C Finzi
Snow cover is projected to decline during the next century in many ecosystems that currently experience a seasonal snowpack. Because snow insulates soils from frigid winter air temperatures, soils are expected to become colder and experience more winter soil freeze-thaw cycles as snow cover continues to decline. Tree roots are adversely affected by snowpack reduction, but whether loss of snow will affect root-microbe interactions remains largely unknown. The objective of this study was to distinguish and attribute direct (e...
December 2016: Ecology
https://www.readbyqxmd.com/read/27912005/climate-change-increases-the-production-of-female-hatchlings-at-a-northern-sea-turtle-rookery
#18
J L Reneker, S J Kamel
The most recent climate change projections show a global increase in temperatures, along with major adjustments to precipitation, throughout the 21st century. Species exhibiting temperature-dependent sex determination are highly susceptible to such changes since the incubation environment influences critical offspring characteristics such as survival and sex ratio. Here we show that the mean incubation duration of loggerhead sea turtle (Caretta caretta) nests from a high-density nesting beach on Bald Head Island, North Carolina, USA has decreased significantly over the past 25 yr...
December 2016: Ecology
https://www.readbyqxmd.com/read/27911997/community-trait-structure-in-phytoplankton-seasonal-dynamics-from-a-method-for-sparse-trait-data
#19
Kyle F Edwards
The distribution of functional traits in communities, and how trait distributions shift over time and space, is critical information for understanding community structure, the maintenance of diversity, and community effects on ecosystem function. It is often the case that traits tightly linked to ecological performance, such as physiological capacities, are laborious to measure and largely unknown for speciose communities; however, these traits are particularly important for unraveling the mechanistic basis of community structure...
December 2016: Ecology
https://www.readbyqxmd.com/read/27911775/how-constraints-affect-the-hunter-s-decision-to-shoot-a-deer
#20
Florian K Diekert, Andries Richter, Inger Maren Rivrud, Atle Mysterud
Hunting is the predominant way of controlling many wildlife populations devoid of large carnivores. It subjects animals to mortality rates that far exceed natural rates and that differ markedly in which age, sex, or size classes are removed relative to those of natural predators. To explain the emerging selection pattern we develop behavioral microfoundations for a hunting model, emphasizing in particular the constraints given by the formal and informal norms, rules, and regulations that govern the hunter's choice...
November 28, 2016: Proceedings of the National Academy of Sciences of the United States of America
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