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https://www.readbyqxmd.com/read/29156558/indoor-temperatures-in-low-cost-housing-in-johannesburg-south-africa
#1
Nisha Naicker, June Teare, Yusentha Balakrishna, Caradee Yael Wright, Angela Mathee
Ambient and indoor temperature affects thermal comfort and human health. In a changing climate with a predicted change in temperature extremes, understanding indoor temperatures, both hot and cold, of different housing types is important. This study aimed to assess the hourly, daily and monthly variation in indoor temperatures in different housing types, namely formal houses, informal houses, flats, government-built low-cost houses and old, apartheid era low-cost housing, in five impoverished urban communities in Johannesburg, South Africa...
November 18, 2017: International Journal of Environmental Research and Public Health
https://www.readbyqxmd.com/read/29156494/comparative-analysis-of-vestibular-ecomorphology-in-birds
#2
Roger B J Benson, Ethan Starmer-Jones, Roger A Close, Stig A Walsh
The bony labyrinth of vertebrates houses the semicircular canals. These sense rotational accelerations of the head and play an essential role in gaze stabilisation during locomotion. The sizes and shapes of the semicircular canals have hypothesised relationships to agility and locomotory modes in many groups, including birds, and a burgeoning palaeontological literature seeks to make ecological interpretations from the morphology of the labyrinth in extinct species. Rigorous tests of form-function relationships for the vestibular system are required to support these interpretations...
December 2017: Journal of Anatomy
https://www.readbyqxmd.com/read/29156280/characteristics-and-health-risk-assessment-of-heavy-metals-exposure-via-household-dust-from-urban-area-in-chengdu-china
#3
Zhang Cheng, Liu-Jun Chen, Han-Han Li, Jian-Qing Lin, Zhan-Biao Yang, Yuan-Xiang Yang, Xiao-Xun Xu, Jun-Ren Xian, Ji-Rong Shao, Xue-Mei Zhu
To investigate the characteristics of heavy metals (Cr, Cd, Pb, Zn, Cu and Ni) in household dust in urban household environment of Chengdu, China, 90 household dust samples were collected from 6 districts of the city. The information of houses and residents were also recorded during dust sampling to identify the correlations between heavy metals in household dust and the house attributes. And also the principal component analysis and cluster analysis for sources and impactor factors. The concentrations of Pb (123mg·kg(-1)), Zn (675mg·kg(-1)), Cu (190mg·kg(-1)), Cr (82...
November 17, 2017: Science of the Total Environment
https://www.readbyqxmd.com/read/29155831/prevalence-and-risk-factors-associated-with-leishmania-infection-in-trang-province-southern-thailand
#4
Jipada Manomat, Saovanee Leelayoova, Lertwut Bualert, Peerapan Tan-Ariya, Suradej Siripattanapipong, Mathirut Mungthin, Tawee Naaglor, Phunlerd Piyaraj
BACKGROUND: Autochthonous cutaneous and visceral leishmaniasis (VL) caused by Leishmania martiniquensis and Leishmania siamensis have been considered emerging infectious diseases in Thailand. The disease burden is significantly underestimated, especially the prevalence of Leishmania infection among HIV-positive patients. METHODS: A cross-sectional study was conducted to determine the prevalence and risk factors associated with Leishmania infection among patients with HIV/AIDS living in Trang province, southern Thailand, between 2015 and 2016...
November 20, 2017: PLoS Neglected Tropical Diseases
https://www.readbyqxmd.com/read/29155827/the-asian-house-shrew-suncus-murinus-as-a-reservoir-and-source-of-human-outbreaks-of-plague-in-madagascar
#5
Soanandrasana Rahelinirina, Minoarisoa Rajerison, Sandra Telfer, Cyril Savin, Elisabeth Carniel, Jean-Marc Duplantier
Identifying key reservoirs for zoonoses is crucial for understanding variation in incidence. Plague re-emerged in Mahajanga, Madagascar in the 1990s but there has been no confirmed case since 1999. Here we combine ecological and genetic data, from during and after the epidemics, with experimental infections to examine the role of the shrew Suncus murinus in the plague epidemiological cycle. The predominance of S. murinus captures during the epidemics, their carriage of the flea vector and their infection with Yersinia pestis suggest they played an important role in the maintenance and transmission of plague...
November 20, 2017: PLoS Neglected Tropical Diseases
https://www.readbyqxmd.com/read/29155700/phase-behavior-of-charged-vesicles-under-symmetric-and-asymmetric-solution-conditions-monitored-with-fluorescence-microscopy
#6
Bastian Kubsch, Tom Robinson, Jan Steinkühler, Rumiana Dimova
Phase-separated giant unilamellar vesicles (GUVs) exhibiting coexisting liquid-ordered and liquid-disordered domains are a common biophysical tool to investigate the lipid raft hypothesis. Numerous studies, however, neglect the impact of physiological solution conditions. On that account, the current work presents the effect of high-salinity buffer and trans-membrane solution asymmetry on liquid-liquid phase separation in charged GUVs grown from dioleylphosphatidylglycerol, egg sphingomyelin, and cholesterol...
October 24, 2017: Journal of Visualized Experiments: JoVE
https://www.readbyqxmd.com/read/29155487/novel-cyp6d1-and-voltage-gated-sodium-channel-alleles-of-the-house-fly-musca-domestica-and-their-roles-in-pyrethroid-resistance
#7
Jing Pan, Chan Yang, Yan Liu, Qi Gao, Mei Li, Xinghui Qiu
BACKGROUND: The house fly Musca domestica is an important disease vector. Point mutation mediated target-site insensitivity of the voltage gated sodium channel (VSSC) and increased detoxification mediated by CYP6D1 overexpression have been characterized to be two major mechanisms of pyrethroid resistance. In this study, genetic mutations in Vssc and CYP6D1 genes and their contribution to pyrethroid resistance were investigated. RESULTS: Twelve lines of house flies homozygous for four genotypes were established...
November 20, 2017: Pest Management Science
https://www.readbyqxmd.com/read/29155351/erp-responses-greater-for-faces-in-the-temporal-compared-to-the-nasal-visual-field
#8
David Framorando, Nicolas Burra, Mylène Bapst, Alan J Pegna
The distribution of retino-tectal projections is dissimilar depending on whether the receptors are situated in the nasal and temporal visual hemiretinas. Indeed, it has been claimed that the superior colliculus receives a greater proportion of its input from the temporal visual hemifield (nasal hemi-retina) relative to the nasal hemifield (temporal hemi-retina). In order to investigate whether these subcortical projections influence face processing, we investigated the early cortical ERP responses to faces and houses presented in the temporal and nasal retinas using monocular viewing...
November 16, 2017: Neuroscience Letters
https://www.readbyqxmd.com/read/29155292/24-7-in-house-attending-staff-coverage-improves-neonatal-short-term-outcomes-a-retrospective-study
#9
Brahim Bensouda, Jessica Boucher, Mandel Romain, Jean Lachapelle, Nabeel Ali
OBJECTIVES: to compare short-term outcomes of newborns over 36 weeks with Apgar scores ≤3 at 1minute, following the adoption of a 24/7 in house coverage schedule STUDY DESIGN: A retrospective chart review comparing two 12-month epochs. Epoch 1: coverage provided by residents with availability on call at home of attending staff. Epoch 2: On site coverage by attending staff. RESULTS: 71 and 60 charts were reviewed from Epoch 1 and 2 respectively. The number of infants receiving chest compressions was reduced during Epoch 2 (from 19% to 1...
November 16, 2017: Resuscitation
https://www.readbyqxmd.com/read/29155246/relatively-enriched-housing-conditions-delay-binge-onset-but-do-not-attenuate-binge-size
#10
Kerry E Preston, Rebecca L Corwin, Julia O Bader, Stephen L Crimmins
Housing and enrichment conditions are essential factors to consider when using animal models of behavior, as they can alter the behavior that is under investigation. The goal of this study was to determine the impact of the relatively enriched environment recommended by current animal care guidelines on development and maintenance of binge-type behavior in rats, using the limited access (LA) binge model. Non-food-deprived rats were divided into two groups, enriched and nonenriched, with all rats housed in shoebox cages...
November 15, 2017: Physiology & Behavior
https://www.readbyqxmd.com/read/29155102/targeting-of-rac1-prevents-bronchoconstriction-and-airway-hyperresponsiveness
#11
Gwennan André-Grégoire, Florian Dilasser, Julie Chesné, Faouzi Braza, Antoine Magnan, Gervaise Loirand, Vincent Sauzeau
BACKGROUND: The molecular mechanisms responsible for airway smooth muscle cells (aSMC) contraction and proliferation in airway hyperresponsiveness (AHR) associated with asthma are still largely unknown. The small GTPases of the Rho family (RhoA, Rac1 and Cdc42) play a central role in SMC functions including migration, proliferation and contraction. OBJECTIVE: The objective of this study is to identify the role of Rac1 in aSMC contraction and to investigate its involvement in AHR associated with allergic asthma...
November 15, 2017: Journal of Allergy and Clinical Immunology
https://www.readbyqxmd.com/read/29154958/pathogenic-th17-inflammation-is-sustained-in-the-lungs-by-conventional-dendritic-cells-and-tlr4-signaling
#12
Karim H Shalaby, Miranda R Lyons-Cohen, Gregory S Whitehead, Seddon Y Thomas, Immo Prinz, Hideki Nakano, Donald N Cook
BACKGROUND: Mechanisms that elicit mucosal Th17 cell responses have been described, yet how these cells are sustained in chronically inflamed tissues remains unclear. OBJECTIVE: We sought to understand whether the maintenance of lung Th17 inflammation requires environmental agents in addition to antigen, and to identify the lung antigen-presenting cell types (APCs) that sustain the self-renewal of Th17 cells. METHODS: Animals were repeatedly exposed to aspiration of ovalbumin alone, or together with environmental adjuvants, including extracts of common house dust (HDE), to test their role in maintaining lung inflammation...
November 14, 2017: Journal of Allergy and Clinical Immunology
https://www.readbyqxmd.com/read/29154947/16s-rrna-gene-amplicon-sequencing-reveals-dominance-of-actinobacteria-in-rhodnius-pallescens-compared-to-triatoma-maculata-midgut-microbiota-in-natural-populations-of-vector-insects-from-colombia
#13
Luisa M Montoya-Porras, Triana-Chavez Omar, F Alzate Juan, X Claudia Moreno Herrera, Gloria E Cadavid-Restrepo
Chagas disease affects more than 6 million people in Latin America, it is a parasitic disease caused by the protozoan Trypanosoma cruzi, which is transmitted mainly by bloodsucking insects of the Triatominae subfamily. Studies on microbial communities that inhabit the insect gut are important to understanding their role in the parasite transmission and development. The present work aims to evaluate the gut bacterial composition of natural populations of triatomine species from Vichada and Magdalena, administrative states called departments in Colombia, using high-throughput sequencing technologies...
November 15, 2017: Acta Tropica
https://www.readbyqxmd.com/read/29154832/carboxylesterase-genes-in-pyrethroid-resistant-house-flies-musca-domestica
#14
Xuechun Feng, Ming Li, Nannan Liu
Carboxylesterases are one of the major enzyme families involved in the detoxification of pyrethroids. Up-regulation of carboxylesterase genes is thought to be a major component of insecticide resistant mechanisms in insects. Based on the house fly transcriptome and genome database, a total of 39 carboxylesterase genes of different functional clades have been identified in house flies. In this study, eleven of these genes were found to be significantly overexpressed in the resistant ALHF house fly strain compared with susceptible aabys and wild-type CS strains...
November 14, 2017: Insect Biochemistry and Molecular Biology
https://www.readbyqxmd.com/read/29154792/robust-real-time-cell-analysis-method-for-determining-viral-infectious-titers-during-development-of-a-viral-vaccine-production-process
#15
Cédric Charretier, Aure Saulnier, Loïc Benair, Corinne Armanet, Isabelle Bassard, Sandra Daulon, Bertrand Bernigaud, Emanuel Rodrigues de Sousa, Clémence Gonthier, Edouard Zorn, Emmanuelle Vetter, Claire Saintpierre, Patrice Riou, David Gaillac
The classical cell-culture methods, such as cell culture infectious dose 50% (CCID50) assays, are time-consuming, end-point assays currently used during the development of a viral vaccine production process to measure viral infectious titers. However, they are not suitable for handling the large number of tests required for high-throughput and large-scale screening analyses. Impedance-based bio-sensing techniques used in real-time cell analysis (RTCA) to assess cell layer biological status in vitro, provide real-time data...
November 14, 2017: Journal of Virological Methods
https://www.readbyqxmd.com/read/29154734/effect-of-physical-activity-on-cardiac-autonomic-function-of-dairy-cows-on-commercial-dairy-farms
#16
Fruzsina Luca Kézér, János Tőzsér, Mikolt Bakony, Ottó Szenci, Viktor Jurkovich, Levente Kovács
Interbeat interval data were collected from 219 Holstein cows in 2 smaller-scale farms and 3 larger-scale farms to investigate the effects of posture (standing vs. lying), rumination (rumination vs. no rumination) and feeding on baseline values of heart rate (HR) and heart rate variability (HRV) parameters reflecting vagal and sympathetic activity. A General Linear Model was used for detecting factors (parity, milking technology, herd size) having possible effects on HRV calculated for undisturbed lying posture...
November 2017: Journal of Dairy Research
https://www.readbyqxmd.com/read/29154732/cd49f-mammary-epithelial-cells-decrease-in-milk-from-dairy-cows-stressed-by-overstocking-during-the-dry-period
#17
Mario Baratta, Silvia Miretti, Paolo Accornero, Giovanna Galeati, Andrea Formigoni, Gianfranco Gabai, Daniele Nucera, Eugenio Martignani
The work reported in this Research Communication describes the modification in epithelial cell populations during the first and the last month of milking in Holstein Friesian cows that have undergone different management during the dry period, and we report the differential expression of CD49f+ and cytokeratin18+ cell subpopulations. Twenty six cows were randomly divided into 2 balanced groups that were housed at stocking density of either 11 m2 (CTR) or 5 m2 from 21 ± 3 d before the expected calving until calving...
November 2017: Journal of Dairy Research
https://www.readbyqxmd.com/read/29154705/compendium-of-measures-to-prevent-disease-associated-with-animals-in-public-settings-2017
#18
Russell F Daly, Jennifer House, Danielle Stanek, Mary Grace Stobierski
No abstract text is available yet for this article.
December 1, 2017: Journal of the American Veterinary Medical Association
https://www.readbyqxmd.com/read/29154489/characteristics-of-prisoners-with-intellectual-disabilities
#19
E Chaplin, J McCarthy, L Underwood, A Forrester, H Hayward, J Sabet, R Mills, S Young, P Asherson, D Murphy
BACKGROUND: Previous studies have found high rates of intellectual disabilities (ID) in prison. However, little is understood about prisoners with ID. This study aimed to identify prisoners with ID and compare their characteristics with prisoners without neurodevelopmental disorders with regard to demographic profile, mental health, suicide risk and offences. METHOD: This was a descriptive, cross-sectional study carried out using face-to-face interviews with 240 participants in a London Category C prison...
December 2017: Journal of Intellectual Disability Research: JIDR
https://www.readbyqxmd.com/read/29154468/fight-flight-or-remain-silent-juggling-multiple-accountabilities-throughout-the-formative-stage-of-a-neighborhood-revitalization-initiative
#20
Stacey M Kesten, Deborah A Perez, Denise S Marques, Scot D Evans, Adrienne Sulma
This paper describes the experiences of a research team as they navigated uncertain ethical and political terrain throughout the formative stage of a public housing redevelopment project. Specifically, we discuss the challenges related to balancing multiple accountabilities and the tensions among the various roles and responsibilities that emanated from different accountabilities. Due to contractual obligations to our funding source, established relations with community partners, and an ethical imperative to align with those holding the least power, we grappled with embodying multiple and often conflicting roles...
November 20, 2017: American Journal of Community Psychology
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