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https://www.readbyqxmd.com/read/29353174/cholinesterase-activity-in-the-cup-oyster-saccostrea-sp-exposed-to-chlorpyrifos-imidacloprid-cadmium-and-copper
#1
Angela M Moncaleano-Niño, Andrea Luna-Acosta, Maria Camila Gómez-Cubillos, Luisa Villamil, Michael J Ahrens
In the present study, the sensitivity and concentration dependence of three functionally-defined components of cholinesterase activity (total: T-ChE; eserine-sensitive: Es-ChE; and eserine-resistant: Er-ChE) were quantified in the gill, digestive gland and adductor muscle of the tropical cup oyster Saccostrea sp., following acute (96h) aqueous exposure to commercial formulations of the organophosphate (OP) insecticide chlorpyrifos and the neonicotinoid (NN) imidacloprid (concentration range: 0.1-100mg/L), as well as to dissolved cadmium and copper (concentration range: 1-1000μg/L)...
January 17, 2018: Ecotoxicology and Environmental Safety
https://www.readbyqxmd.com/read/29347903/child-caregiver-and-health-care-provider-perspectives-and-experiences-regarding-disclosure-of-hiv-status-to-perinatally-infected-children-in-lima-peru
#2
Amira Noori Baker, Angela Marie Bayer, Lenka Kolevic, Lizzete Najarro, Rolando Mario Viani, Jaime Gerardo Deville
BACKGROUND: Despite recommendations for disclosure of HIV status to children living with HIV (CLHIV), fewer than half of CLHIV at the Instituto Nacional de Salud del Niño (INSN) in Lima, Peru, have had disclosure. How and when the disclosure process for CLHIV should take place in Peru has not been studied. METHODS: We conducted a qualitative study at INSN to explore perceptions and experiences of 6 health care providers (HCPs), 14 disclosed and nondisclosed CLHIV (8-17 years), and their 14 caregivers regarding knowledge of illness, disclosure of HIV status, and appropriate disclosure approaches...
January 2018: Journal of the International Association of Providers of AIDS Care
https://www.readbyqxmd.com/read/29346983/three-dimensional-slow-rossby-waves-in-rotating-spherical-density-stratified-convection
#3
T Elperin, N Kleeorin, I Rogachevskii
We develop a theory of three-dimensional slow Rossby waves in rotating spherical density stratified convection. The Rossby waves, with frequencies which are much smaller than the rotating frequency, are excited by a nonaxisymmetric instability from the equilibrium based on the developed convection. These waves interact with the inertial waves and the density stratified convection. The density stratification is taken into account using the anelastic approximation for very low-Mach-number flows. We study long-term planetary Rossby waves with periods which are larger than two years...
September 2017: Physical Review. E
https://www.readbyqxmd.com/read/29346904/extracting-oscillating-components-from-nonstationary-time-series-a-wavelet-induced-method
#4
Adrien Deliège, Samuel Nicolay
This paper consists in the description and application of a method called wavelet-induced mode extraction (WIME) in the context of time-frequency analysis. WIME aims to extract the oscillating components that build amplitude modulated-frequency modulated signals. The essence of this technique relies on the successive extractions of the dominant ridges of wavelet-based time-frequency representations of the signal under consideration. Our tests on simulated examples indicate strong decomposition and reconstruction skills, trouble-free handling of crossing trajectories in the time-frequency plane, sharp performances in frequency detection in the case of mode-mixing problems, and a natural tolerance to noise...
September 2017: Physical Review. E
https://www.readbyqxmd.com/read/29346653/emergence-of-acute-subacute-infant-juvenile-paracoccidioidomycosis-in-northeast-argentina-effect-of-climatic-and-anthropogenic-changes
#5
Gustavo Giusiano, Clarisa Aguirre, Claudia Vratnica, Florencia Rojas, Teresa Corallo, María Emilia Cattana, Mariana Fernández, Javier Mussin, María de Los Angeles Sosa
Argentina has two endemic areas of paracoccidioidomycosis (PCM). Bordering Paraguay and Brazil, Northeast Argentina (NEA) comprises the area with the highest incidence where the chronic adult clinical form has historically been reported. Juvenile form in children and adolescents is rare in this area since only one case was reported in the last 10 years. Despite this, between 2010 and 2012, several cases of acute/subacute clinical forms in children aged 10 to 16 (median 12) were detected. In the last decade, the NEA region has been exposed to ecological variations as consequences of certain climatic and anthropogenic changes, including El Niño-Southern Oscillation phenomenon during 2009, and deforestation...
January 13, 2018: Medical Mycology: Official Publication of the International Society for Human and Animal Mycology
https://www.readbyqxmd.com/read/29345031/amazon-droughts-and-forest-responses-largely-reduced-forest-photosynthesis-but-slightly-increased-canopy-greenness-during-the-extreme-drought-of-2015-2016
#6
Jia Yang, Hanqin Tian, Shufen Pan, Guangsheng Chen, Bowen Zhang, Shree Dangal
Amazon droughts have major impacts on regional ecosystem functioning as well as global carbon cycling. The severe dry-season droughts in 2005 and 2010, driven by Atlantic sea surface temperature (SST) anomaly, have been widely investigated in terms of drought severity and impacts on ecosystems. Although the influence of Pacific SST anomaly on wet-season precipitation has been well recognized, it remains uncertain to what extent the droughts driven by Pacific SST anomaly could affect forest greenness and photosynthesis in the Amazon...
January 18, 2018: Global Change Biology
https://www.readbyqxmd.com/read/29344939/socially-informed-dispersal-in-a-territorial-cooperative-breeder
#7
Gabriele Cozzi, Nino Maag, Luca Börger, Tim Clutton-Brock, Arpat Ozgul
1.Dispersal is a key process governing the dynamics of socially and spatially structured populations, and involves three distinct stages: emigration, transience, and settlement. At each stage, individuals have to make movement decisions, which are influenced by social, environmental, and individual factors. Yet, a comprehensive understanding of the drivers that influence such decisions is still lacking, particularly for the transient stage during which free-living individuals are inherently difficult to follow...
January 18, 2018: Journal of Animal Ecology
https://www.readbyqxmd.com/read/29342148/a-strong-summer-phytoplankton-bloom-southeast-of-vietnam-in-2007-a-transitional-year-from-el-ni%C3%A3-o-to-la-ni%C3%A3-a
#8
Hui Zhao, Jian Zhao, Xingli Sun, Fajin Chen, Guoqi Han
Summer upwelling occurs frequently off the southeast Vietnam coast in the western South China Sea (SCS), where summer phytoplankton blooms generally appear during June-August. In this study, we investigate inter-annual variation of Ekman pumping and offshore transport, and its modulation on summer blooms southeast of Vietnam. The results indicate that there are low intensities of summer blooms in El Niño years, under higher sea surface temperatures (SST) and weaker winds. However, a different pattern of monthly chlorophyll a (Chl-a) blooms occurred in summer of 2007, a transitional stage from El Niño to La Niña, with weak (strong) wind and high (low) SST before (after) early July...
2018: PloS One
https://www.readbyqxmd.com/read/29341824/intestinal-lymph-as-a-readout-of-meal-induced-glp-1-release-in-an-unrestrained-rat-model
#9
Nino Jejelava, Sharon Kaufman, Jean-Philippe Krieger, Marcella Martins Terra, Wolfgang Langhans, Myrtha Arnold
Intestinal lymph supposedly provides a readout for the secretion of intestinal peptides. We here assessed how mesenteric lymph duct (MLD) lymph levels of glucagon-like peptide (GLP-1), insulin, and metabolites (Glucose, triglycerides [TG]) evolve after isocaloric high and low fat diet (HFD, LFD) meals, and how they compare to hepatic portal vein (HPV) plasma levels. Moreover, we examined the effects of intraperitoneally (IP) administered GLP-1 (1 or 10 nmol/kg) on these parameters. At 20 min after the HFD meal onset, GLP-1 levels were higher in MLD lymph than in HPV plasma...
January 17, 2018: American Journal of Physiology. Regulatory, Integrative and Comparative Physiology
https://www.readbyqxmd.com/read/29339487/uncovering-the-role-of-the-east-asian-jet-stream-and-heterogeneities-in-atmospheric-rivers-affecting-the-western-united-states
#10
Wei Zhang, Gabriele Villarini
Atmospheric rivers (ARs) exert major socioeconomic repercussions along the US West Coast by inducing heavy rainfall, flooding, strong winds, and storm surge. Despite the significant societal and economic repercussions of these storms, our understanding of the physical drivers responsible for their interannual variability is limited, with different climate modes identified as possible mechanisms. Here we show that the Pacific-Japan (PJ) teleconnections/patterns and the East Asian subtropical jet (EASJ) exhibit a strong linkage with the total frequency of ARs making landfall over the western United States, much stronger than the other potential climate modes previously considered...
January 16, 2018: Proceedings of the National Academy of Sciences of the United States of America
https://www.readbyqxmd.com/read/29338001/modelling-the-large-scale-yellow-fever-outbreak-in-luanda-angola-and-the-impact-of-vaccination
#11
Shi Zhao, Lewi Stone, Daozhou Gao, Daihai He
BACKGROUND: Yellow fever (YF), transmitted via bites of infected mosquitoes, is a life-threatening viral disease endemic to tropical and subtropical regions of Africa and South America. YF has largely been controlled by widespread national vaccination campaigns. Nevertheless, between December 2015 and August 2016, YF resurged in Angola, quickly spread and becoming the largest YF outbreak for the last 30 years. Recently, YF resurged again in Brazil (December 2016). Thus, there is an urgent need to gain better understanding of the transmission pattern of YF...
January 16, 2018: PLoS Neglected Tropical Diseases
https://www.readbyqxmd.com/read/29337554/light-induced-deformation-of-azobenzene-containing-colloidal-spheres-calculation-and-measurement-of-opto-mechanical-stresses
#12
Sarah Loebner, Nino Lomadze, Alexey Kopyshev, Markus Koch, Olga Guskova, Marina Grenzer Saphiannikova, Svetlana A Santer
We report on light induced deformation of colloidal spheres consisting of azobenzene containing polymers. The colloids of the size between 60nm and 2m in diameter were drop casted on a glass surface and irradiated with linearly polarized light. It was found that colloidal particles can be deformed up to ca. 6 times of their initial diameter. The maximum degree of deformation depends on the irradiation wavelength and intensity, as well as on colloidal particles size. Based on recently proposed theory [V. Toshchevikov et al...
January 16, 2018: Journal of Physical Chemistry. B
https://www.readbyqxmd.com/read/29335426/author-correction-intensification-of-terrestrial-carbon-cycle-related-to-el-ni%C3%A3-o-southern-oscillation-under-greenhouse-warming
#13
Jin-Soo Kim, Jong-Seong Kug, Su-Jong Jeong
In the original version of this Article, the affiliation for Su-Jon Jeong was incorrectly given as 'Southern University of Science and Technology of China (SUSTECH)', instead of 'Southern University of Science and Technology (SUSTECH)'. This has now been corrected in both the PDF and HTML versions of the Article.
January 15, 2018: Nature Communications
https://www.readbyqxmd.com/read/29333822/labial-adhesions-experience-in-a-children-s-hospital
#14
Anahí Rubinstein, Gisel Rahman, Paula Risso, Dolores Ocampo
Labial adhesions are defined as the complete or partial fusion of the pudendal cleft due to the agglutination of the labia minora in the midline. They most commonly occur between 3 months and 6 years of life. Between January 1st, 2002 and December 31st, 2015, 425 girls diagnosed with labial adhesions and seen at the Unit of Pediatric and Adolescent Gynecology of Hospital de Niños de La Plata, Argentina, were analyzed. Their average age was 2.7 years (standard deviation: 2.6 years). The most common presentation of labial adhesions was that involving more than 75% of the total length of the labia (p < 0...
February 1, 2018: Archivos Argentinos de Pediatría
https://www.readbyqxmd.com/read/29333821/opioid-treatment-for-mixed-pain-in-pediatric-patients-assisted-by-the-palliative-care-team-five-years-of-experience
#15
María L Yazde Puleio, Karina V Gómez, Ana Majdalani, Vilma Pigliapoco, Gisella Santos Chocler
Pain is defined as an unpleasant sensory and emotional experience associated with actual or potential tissue damage. Depending on its pathophysiological mechanism, it may be classified into nociceptive, neuropathic, and mixed pain. If pain is moderate to severe, a strong opioid should be administered and, when this is the case, morphine is the drug of choice. If morphine is ineffective or causes intolerable adverse effects, opioid rotation is recommended. Our objective was to describe the drug management for mixed pain used in patients assisted by the Palliative Care team of Hospital General de Niños Pedro de Elizalde between August 2011 and September 2015...
February 1, 2018: Archivos Argentinos de Pediatría
https://www.readbyqxmd.com/read/29333807/contribution-of-diet-to-lead-exposure-among-children-aged-1-to-7-years-in-la-plata-buenos-aires
#16
Enrique Martins, Agustina Malpeli, Daniel Asens, Luis Telese, Victoria Fasano, Vania Vargas, Marina Tavella, Jorge E Colman Lerner
INTRODUCTION: Lead is a toxic metal which, even at low blood levels, can alter normal neurodevelopment in children, so no blood lead level is acceptable. Lead absorption from diet accounts for the highest contribution to blood lead levels in the population who is not exposed to contaminated environments or because of their occupation. The objective of this study was to determine the contribution of diet to lead exposure among children aged 1 to 7 years who attended Hospital de Niños de La Plata for health check-ups...
February 1, 2018: Archivos Argentinos de Pediatría
https://www.readbyqxmd.com/read/29333198/response-of-pacific-sector-antarctic-ice-shelves-to-the-el-ni%C3%A3-o-southern-oscillation
#17
F S Paolo, L Padman, H A Fricker, S Adusumilli, S Howard, M R Siegfried
Satellite observations over the past two decades have revealed increasing loss of grounded ice in West Antarctica, associated with floating ice shelves that have been thinning. Thinning reduces an ice-shelf's ability to restrain grounded-ice discharge, yet our understanding of the climate processes that drive mass changes is limited. Here, we use ice-shelf height data from four satellite altimeter missions (1994-2017) to show a direct link between ice-shelf-height variability in the Antarctic Pacific sector and changes in regional atmospheric circulation driven by the El Niño-Southern Oscillation...
January 2018: Nature Geoscience
https://www.readbyqxmd.com/read/29331485/impact-of-9p21-3-region-and-atherosclerosis-related-genes-variants-on-long-term-recurrent-hard-cardiac-events-after-a-myocardial-infarction
#18
German J Osmak, Boris V Titov, Natalia A Matveeva, Vitalina V Bashinskaya, Roman M Shakhnovich, Tatiana S Sukhinina, Nino G Kukava, Mikhail Ya Ruda, Olga O Favorova
Atherosclerotic coronary artery disease (CAD) and myocardial infarction (MI) as its most severe clinical complication remain the leading causes of mortality in the majority of countries. Despite the progress in the treatment of MI, quite often the patients, after the first-time MI, develop subsequently a variety of adverse cardiovascular events. In this retrospective study we evaluated the contribution of allelic variations in 9p21.3 locus and in 21 atherogenesis-related genes to the development of hard cardiac events in a cohort of patients of Russian ethnicity after the first acute MI during long-term follow-up (7-10 years)...
January 10, 2018: Gene
https://www.readbyqxmd.com/read/29330667/diversity-and-phenology-of-wild-bees-in-a-highly-disturbed-tropical-dry-forest-desierto-de-la-tatacoa-huila-colombia
#19
C A Poveda-Coronel, D Riaño-Jiménez, J R Cure
Colombian tropical dry forest is considered the most endangered tropical biome due to anthropic activities. Desierto de la Tatacoa (DsT) is an example of high disturbed tropical dry forest which still maintains a high biodiversity. The objective of the study was to record the diversity and phenology of wild bees in this place by monthly sampling between December 2014 and December 2016 in a 9-km2 area. During the study, there was a prolonged El Niño-Southern Oscillation period. Bees were collected by entomological nets, malaise traps, eugenol scent trapping, and nest traps...
January 12, 2018: Neotropical Entomology
https://www.readbyqxmd.com/read/29327189/using-a-high-organic-matter-biowall-to-treat-a-trichloroethylene-plume-at-the-beaver-dam-road-landfill
#20
Gabriela T Niño de Guzmán, Cathleen J Hapeman, Patricia D Millner, Laura L McConnell, Dana Jackson, David Kindig, Alba Torrents
Trichloroethylene (TCE) is a highly effective industrial degreasing agent and known carcinogen. It was frequently buried improperly in landfills and has subsequently become one of the most common groundwater and soil contaminants in the USA. A common strategy to remediate TCE-contaminated sites and to prevent movement of the TCE plumes into waterways is to construct biowalls which consist of biomaterials and amendments to enhance biodegradation. This approach was chosen to contain a TCE plume emanating from a closed landfill in Maryland...
January 11, 2018: Environmental Science and Pollution Research International
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