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https://www.readbyqxmd.com/read/28441593/a-comprehensive-evaluation-of-the-environmental-quality-of-a-coastal-lagoon-ravenna-italy-integrating-chemical-and-physiological-analyses-in-mussels-as-a-biomonitoring-strategy
#1
Marco Capolupo, Silvia Franzellitti, Alisar Kiwan, Paola Valbonesi, Enrico Dinelli, Emanuela Pignotti, Manfred Birke, Elena Fabbri
This study aimed at evaluating the environmental quality of a coastal lagoon (Pialassa Piomboni, NW-Adriatic, Italy) by combining analyses of biomarkers of environmental stress and bioaccumulation of contaminants in marine mussels (Mytilus galloprovincialis) transplanted for 28days to six selected sites. Assessed biomarkers encompassed lysosomal endpoints, oxidative stress and detoxification parameters, specific responses to metals, neuro- and genotoxic substances; chemical analyses focused on PAHs, metals, pesticide and pharmaceuticals...
April 22, 2017: Science of the Total Environment
https://www.readbyqxmd.com/read/28431524/biosecurity-survey-in-relation-to-the-risk-of-hpai-outbreaks-in-backyard-poultry-holdings-in-thimphu-city-area-bhutan
#2
Tenzin Tenzin, Chador Wangdi, Purna Bdr Rai
BACKGROUND: A questionnaire survey was conducted to assess the biosecurity and other practices of backyard poultry holdings and knowledge and practices of poultry keepers following an outbreak of highly pathogenic avian influenza (H5N1) virus in poultry in Thimphu city area, Bhutan. RESULTS: The study identified 62 backyard poultry holdings in 12 settlement areas, and the owners were subsequently interviewed. The birds are kept in a low-input low-output system, fed locally available scavenging feed base, and supplemented with food scraps and some grain...
April 21, 2017: BMC Veterinary Research
https://www.readbyqxmd.com/read/28431371/past-present-and-future-land-use-changes-and-their-impact-on-water-balance
#3
Sananda Kundu, Deepak Khare, Arun Mondal
Landuse change influences the water balance of a region affecting the available water along with the change in the evapotranspiration (ET). The major objectives of this study are to assess the landuse change and its impact on the water balance of the study area, which is a part of the Narmada river basin in Madhya Pradesh, India. Landuse changes of 1990, 2000 and 2011 have been analyzed and the Markov Chain model has been used to predict decadal change of 2020, 2030, 2040 and 2050 landuse. The influence of the past, present and future landuse change on water balance has been analyzed with the SWAT (Soil and Water Analysis Tool) model in the study area...
April 17, 2017: Journal of Environmental Management
https://www.readbyqxmd.com/read/28429593/model-amphiphilic-block-copolymers-with-tailored-molecular-weight-and-composition-in-pdms-based-films-to-limit-soft-biofouling
#4
Brandon M Wenning, Elisa Martinelli, Sophie Mieszkin, John A Finlay, Daniel A Fischer, James A Callow, Maureen E Callow, Amanda Leonardi, Christopher K Ober, Giancarlo Galli
A set of controlled surface composition films was produced utilizing amphiphilic surface-active block copolymers dispersed in a crosslinked polydimethylsiloxane (PDMS) network. These block copolymers contained oligo(ethylene glycol) (PEGMA) and fluoroalkyl (AF6) side chains in selected ratios and molecular weights to control surface chemistry as well as antifouling (AF) and fouling-release (FR) performance. AF and FR properties were assessed by carrying out settlement and removal assays using two algae, the green macroalga Ulva linza (favors attachment to polar surfaces) and the unicellular diatom Navicula incerta (favors attachment to non-polar surfaces)...
April 21, 2017: ACS Applied Materials & Interfaces
https://www.readbyqxmd.com/read/28427380/the-stepping-stones-and-creating-futures-intervention-to-prevent-intimate-partner-violence-and-hiv-risk-behaviours-in-durban-south-africa-study-protocol-for-a-cluster-randomized-control-trial-and-baseline-characteristics
#5
Andrew Gibbs, Laura Washington, Samantha Willan, Nolwazi Ntini, Thobani Khumalo, Nompumelelo Mbatha, Yandisa Sikweyiya, Nwabisa Shai, Esnat Chirwa, Michael Strauss, Giulia Ferrari, Rachel Jewkes
BACKGROUND: Preventing intimate partner violence (IPV) remains a global public health challenge. Studies suggest urban informal settlements have particularly high levels of IPV and HIV-prevalence and these settlements are rapidly growing. The current evidence base of effective approaches to preventing IPV recognizes the potential of combining economic strengthening and gender transformative interventions. However, few of these interventions have been done in urban informal settlements, and almost none have included men as direct recipients of these interventions...
April 20, 2017: BMC Public Health
https://www.readbyqxmd.com/read/28425935/water-access-sanitation-and-hygiene-conditions-and-health-outcomes-among-two-settlement-types-in-rural-far-north-cameroon
#6
Tyler J Gorham, Joshua Yoo, Rebecca Garabed, Arabi Mouhaman, Jiyoung Lee
The Far North region in Cameroon has been more heavily impacted by cholera than any other region over the past decade, but very little has been done to study the drivers of waterborne diseases in the region. We investigated the relationship between water, sanitation, and hygiene (WASH) parameters, microbial and antibiotic resistance (AR) contamination levels in drinking water, and health outcomes using health survey and molecular analysis during June and July of 2014 in two settlement types (agro-pastoralist villages and transhumant pastoralist camps)...
April 20, 2017: International Journal of Environmental Research and Public Health
https://www.readbyqxmd.com/read/28423059/high-resolution-microscopy-reveals-significant-impacts-of-ocean-acidification-and-warming-on-larval-shell-development-in-laternula-elliptica
#7
Christine H Bylenga, Vonda J Cummings, Ken G Ryan
Environmental stressors impact marine larval growth rates, quality and sizes. Larvae of the Antarctic bivalve, Laternula elliptica, were raised to the D-larvae stage under temperature and pH conditions representing ambient and end of century projections (-1.6°C to +0.4°C and pH 7.98 to 7.65). Previous observations using light microscopy suggested pH had no influence on larval abnormalities in this species. Detailed analysis of the shell using SEM showed that reduced pH is in fact a major stressor during development for this species, producing D-larvae with abnormal shapes, deformed shell edges and irregular hinges, cracked shell surfaces and even uncalcified larvae...
2017: PloS One
https://www.readbyqxmd.com/read/28423011/the-range-of-the-mange-spatiotemporal-patterns-of-sarcoptic-mange-in-red-foxes-vulpes-vulpes-as-revealed-by-camera-trapping
#8
David Carricondo-Sanchez, Morten Odden, John D C Linnell, John Odden
Sarcoptic mange is a widely distributed disease that affects numerous mammalian species. We used camera traps to investigate the apparent prevalence and spatiotemporal dynamics of sarcoptic mange in a red fox population in southeastern Norway. We monitored red foxes for five years using 305 camera traps distributed across an 18000 km2 area. A total of 6581 fox events were examined to visually identify mange compatible lesions. We investigated factors associated with the occurrence of mange by using logistic models within a Bayesian framework, whereas the spatiotemporal dynamics of the disease were analysed with space-time scan statistics...
2017: PloS One
https://www.readbyqxmd.com/read/28416042/earthquakes-fuel-crisis-power-outages-and-health-care-in-nepal-implications-for-the-future
#9
Bipin Adhikari, Shiva Raj Mishra, Sujan Babu Marahatta, Nils Kaehler, Kumar Paudel, Janak Adhikari, Shristi Raut
Earthquakes are a major natural calamity with pervasive effects on human life and nature. Similar effects are mimicked by man-made disasters such as fuel crises and power outages in developing countries. Natural and man-made disasters can cause intangible human suffering and often leave scars of lifelong psychosocial damage. Lessons from these disasters are frequently not implemented. The main objective of this study was to review the effects of the 2015 earthquakes, fuel crisis, and power outages on the health services of Nepal and formulate recommendations for the future...
April 18, 2017: Disaster Medicine and Public Health Preparedness
https://www.readbyqxmd.com/read/28413871/comparison-of-the-gene-expression-profiles-of-human-hematopoietic-stem-cells-between-humans-and-a-humanized-xenograft-model
#10
Hideyuki Matsuzawa, Hiromichi Matsushita, Takashi Yahata, Masayuki Tanaka, Kiyoshi Ando
The aim of this study is to evaluate the feasibility of NOD/Shi-scid-IL2Rγ(null)(NOG) mice transplanted with human CD34(+)/CD38(-)/Lin(-/low) hematopoietic cells from cord blood (CB) as an experimental model of the gene expression in human hematopoiesis. We compared the gene expressions of human CD34(+)/CD38(-)/Lin(-/low) cells from human bone marrow (BM) and in xenograft models. The microarray data revealed that 25 KEGG pathways were extracted from the comparison of human CD34(+)/CD38(-)/Lin(-/low) HSCs between CB and BM, and that 17 of them--which were mostly related to cellular survival, RNA metabolism and lymphoid development--were shared with the xenograft model...
April 20, 2017: Tokai Journal of Experimental and Clinical Medicine
https://www.readbyqxmd.com/read/28408600/the-impact-of-hunting-on-tropical-mammal-and-bird-populations
#11
A Benítez-López, R Alkemade, A M Schipper, D J Ingram, P A Verweij, J A J Eikelboom, M A J Huijbregts
Hunting is a major driver of biodiversity loss, but a systematic large-scale estimate of hunting-induced defaunation is lacking. We synthesized 176 studies to quantify hunting-induced declines of mammal and bird populations across the tropics. Bird and mammal abundances declined by 58% (25 to 76%) and by 83% (72 to 90%) in hunted compared with unhunted areas. Bird and mammal populations were depleted within 7 and 40 kilometers from hunters' access points (roads and settlements). Additionally, hunting pressure was higher in areas with better accessibility to major towns where wild meat could be traded...
April 14, 2017: Science
https://www.readbyqxmd.com/read/28406246/unravelling-mycorrhiza-induced-wheat-susceptibility-to-the-english-grain-aphid-sitobion-avenae
#12
Amma L Simon, Peter A D Wellham, Gudbjorg I Aradottir, Alan C Gange
Arbuscular mycorrhizal (AM) fungi are root symbionts that can increase or decrease aphid growth rates and reproduction, but the reason by which this happens is unknown. To investigate the underlying mechanisms of this interaction, we examined the effect of AM fungi on the English Grain aphid (Sitobion avenae) development, reproduction, attraction, settlement and feeding behaviour on two naturally susceptible varieties Triticum aestivum (L.) variety Solstice and T. monococcum MDR037, and two naturally resistant lines, T...
April 13, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28403171/bacterial-biofilm-under-flow-first-a-physical-struggle-to-stay-then-a-matter-of-breathing
#13
Philippe Thomen, Jérôme Robert, Amaury Monmeyran, Anne-Florence Bitbol, Carine Douarche, Nelly Henry
Bacterial communities attached to surfaces under fluid flow represent a widespread lifestyle of the microbial world. Through shear stress generation and molecular transport regulation, hydrodynamics conveys effects that are very different by nature but strongly coupled. To decipher the influence of these levers on bacterial biofilms immersed in moving fluids, we quantitatively and simultaneously investigated physicochemical and biological properties of the biofilm. We designed a millifluidic setup allowing to control hydrodynamic conditions and to monitor biofilm development in real time using microscope imaging...
2017: PloS One
https://www.readbyqxmd.com/read/28401838/poverty-early-care-and-stress-reactivity-in-adolescence-findings-from-a-prospective-longitudinal-study-in-south-africa
#14
R M Pasco Fearon, Mark Tomlinson, Robert Kumsta, Sarah Skeen, Lynne Murray, Peter J Cooper, Barak Morgan
A considerable body of evidence suggests that early caregiving may affect the short-term functioning and longer term development of the hypothalamic-pituitary-adrenocortical axis. Despite this, most research to date has been cross-sectional in nature or restricted to relatively short-term longitudinal follow-ups. More important, there is a paucity of research on the role of caregiving in low- and middle-income countries, where the protective effects of high-quality care in buffering the child's developing stress regulation systems may be crucial...
May 2017: Development and Psychopathology
https://www.readbyqxmd.com/read/28399209/spatial-distribution-of-phlebotomus-argentipes-diptera-psychodidae-in-eastern-india-a-case-study-evaluating-multispatial-resolution-remotely-sensed-environmental-evidence-and-microclimatic-data
#15
Rakesh Mandal, Pradeep Das, Vijay Kumar, Shreekant Kesari
Remote sensing, a powerful tool for analyzing landscape factors, is being used to explore the spatial ecology of vectors of several diseases. This study aims to explore the role of buffer size in identification and quantification of geo-environmental factors from multispatial resolution satellite data and its application along with microclimatic data to kala-azar vector abundance modeling.Sand fly abundance and microclimatic data were collected from 210 sample sites during the premonsoon and postmonsoon season of 2014 from Muzaffarpur district of Bihar (India)...
March 18, 2017: Journal of Medical Entomology
https://www.readbyqxmd.com/read/28393598/-zika-virus-infection-in-pregnancy
#16
Gabriella Varjasi, Róbert Póka
The Zika virus is a flavivirus spread by mosquitoes. Its primary vectors are the Aedes aegypti and the Aedes albopictus. Before 2007 it sporadically caused benign morbidity. Since 2015, it started spreading "explosively" in America, especially in Brazil. In August 2016 they reported cases from New York and Poland, too. Most of the infections don't produce any symptoms, but can cause grave complications. The most important lesion is microcephalia that forms in fetuses. Microcephalia's most serious consequence is mental retardation, which puts great burden on both the family and the society...
April 2017: Orvosi Hetilap
https://www.readbyqxmd.com/read/28393128/prevalence-and-predictors-of-mental-health-among-farmworkers-in-southeastern-anatolia-of-turkey
#17
Zeynep Simsek, Ayşana Zehra Keklik, Canan Demir, Kerim M Munir
BACKGROUND: Mental health problems represent a major component of the global burden of disease. The primary objective of this study was to assess the prevalence and predictors of psychological wellbeing among farmworkers and to evaluate their mental health services need for in rural primary health care settings. METHODS: The study sample comprised 1855 farmworkers (918 women, and 937 men) who were selected using probability cluster sampling method at 95% confidence interval (87...
January 2017: Int J Environ Agric Res
https://www.readbyqxmd.com/read/28392988/structuring-effects-of-chemicals-from-the-sea-fan-phyllogorgia-dilatata-on-benthic-communities
#18
Felipe V Ribeiro, Bernardo A P da Gama, Renato C Pereira
Despite advances in understanding the ecological functions of secondary metabolites from marine organisms, there has been little focus on the influence of chemically-defended species at the community level. Several compounds have been isolated from the gorgonian octocoral Phyllogorgia dilatata, a conspicuous species that forms dense canopies on rocky reefs of northern Rio de Janeiro State, Brazil. Manipulative experiments were performed to study: (1) the effects of live colonies of P. dilatata (physical presence and chemistry) on recruitment of sympatric benthic organisms; (2) the allelopathic effects of its chemicals on competitors; and (3) chemotactic responses of the non-indigenous brittle star, Ophiothela mirabilis...
2017: PeerJ
https://www.readbyqxmd.com/read/28390810/dizziness-malpractice-and-the-otolaryngologist
#19
Anthony M Tolisano, Sungjin A Song, Douglas S Ruhl, Philip D Littlefield
PURPOSE: To assess malpractice claims related to the management of dizziness in otolaryngology in order to improve care and minimize the risk of litigation. MATERIALS AND METHODS: This is a retrospective review of the LexisNexis "Jury Verdicts and Settlements" database. All lawsuits and out of court adjudications related to the management of dizziness by otolaryngologists were collected. Data including patient demographics, plaintiff allegation, procedure performed, and indemnities were analyzed...
March 31, 2017: American Journal of Otolaryngology
https://www.readbyqxmd.com/read/28389641/dual-function-of-tropodithietic-acid-as-antibiotic-and-signaling-molecule-in-global-gene-regulation-of-the-probiotic-bacterium-phaeobacter-inhibens
#20
Paul G Beyersmann, Jürgen Tomasch, Kwangmin Son, Roman Stocker, Markus Göker, Irene Wagner-Döbler, Meinhard Simon, Thorsten Brinkhoff
Antibiotics are typically regarded as microbial weapons, but whereas their function at concentrations lethal for bacteria is often well characterized, the role of antibiotics at much lower concentrations as possibly found under natural conditions remains poorly understood. By using whole-transcriptome analyses and phenotypic screenings of the marine bacterium Phaeobacter inhibens we found that the broad-spectrum antibiotic tropodithietic acid (TDA) causes the same regulatory effects in quorum sensing (QS) as the common signaling molecule N-acyl-homoserine lactone (AHL) at concentrations 100-fold lower than the minimal inhibitory concentration against bacteria...
April 7, 2017: Scientific Reports
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