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https://www.readbyqxmd.com/read/29778490/the-molecular-allergology-of-subtropical-grass-pollen
#1
Thina Kailaivasan, Janet M Davies
Grass pollens are amongst the most important aeroallergen sources world-wide triggering allergic rhinoconjunctivitis and asthma in sensitised patients. Much of what we know about the allergen components of grasses is informed by research on pollen of temperate (Pooideae) species that are abundant in the temperate climate zones. However, climate changes are altering the biogeographical distribution as well as timing and allergenicity of grass pollens. This provides an impetus for better understanding of the contribution of subtropical subfamilies of grasses to pollen allergy globally...
May 16, 2018: Molecular Immunology
https://www.readbyqxmd.com/read/29778225/identification-growth-and-toxicity-assessment-of-coolia-meunier-dinophyceae-from-nova-scotia-canada
#2
Nancy I Lewis, Jennifer L Wolny, John Claude Achenbach, Lee Ellis, Joseph S Pitula, Cheryl Rafuse, Detbra S Rosales, Pearse McCarron
Benthic dinoflagellates of the toxigenic genus Coolia Meunier (Dinophyceae) are known to have a global distribution in both tropical and temperate waters. The type species, C. monotis, has been reported from the Mediterranean Sea, the NE Atlantic and from Rhode Island, USA in the NW Atlantic, whereas other species in the genus have been reported from tropical locations. Coolia cells were observed in algal drift samples collected at seven sites in Nova Scotia, Canada. Clonal isolates were established from four of these locations and identified with light and scanning electron microscopy, then confirmed with genetic sequencing to be C...
May 2018: Harmful Algae
https://www.readbyqxmd.com/read/29776461/thermal-structure-induced-biochemical-parameters-stratification-in-a-subtropical-dam-reservoir
#3
(no author information available yet)
Although stratification in deep lakes was well discussed, few studies pay attention to thermal structure as well as itsinfluences on stratification of biochemical parameters in subtropical lakes in mountainous cities. Here, we studied the depth profile of temperature and biochemical parameters in Longjing Lake,a subtropical reservoir in a mountainous city. The thermal stratification became strong during summer. Biochemical parameters were strongly associated with thermal structure. Stratification started at 2~6 m depth with substantial decrease of dissolved oxygen (DO), biochemical oxygen demand (BOD5), chlorophyll a (Chla) and pH, corresponding to increase of total nitrogen (TN), ammonium (NH4+), nitrite (NO2-), total inorganic nitrogen (TIN), total phosphorus (TP) and soluble reactive phosphorus (SRP) with depth, and the majority of biochemical parameters showed slight variations from 12 m downward...
May 18, 2018: Water Environment Research: a Research Publication of the Water Environment Federation
https://www.readbyqxmd.com/read/29776384/competence-of-mosquitoes-native-to-the-united-kingdom-to-support-replication-and-transmission-of-rift-valley-fever-virus
#4
Sarah Lumley, Luis M Hernández-Triana, Daniel L Horton, Maria Del Mar Fernández de Marco, Jolyon M Medlock, Roger Hewson, Anthony R Fooks, Nicholas Johnson
BACKGROUND: Rift Valley fever phlebovirus (RVFV) is a mosquito-borne arbovirus causing severe disease in humans and livestock. It is endemic in Africa and spread to the Arabian Peninsula in 2000 raising concerns it could emerge in Europe. The ability of temperate mosquitoes from the United Kingdom (UK) to support replication and transmission of RVFV is unknown. METHODS: In this study, two colonised lines of Culex pipiens, wild-caught Aedes detritus and Ae. rusticus from the UK were infected with pathogenic strains of RVFV to assess their vector competence...
May 18, 2018: Parasites & Vectors
https://www.readbyqxmd.com/read/29775828/size-season-and-origin-of-gastropods-matter-in-imposex-assessments
#5
Martina Rossato, Mércia Barcelos Costa, Ítalo Braga de Castro, Grasiela Lopes Leães Pinho
Through controlled exposure to tributyltin (TBT), the effects of season, size, and population origin were evaluated on imposex incidence in Stramonita brasiliensis. Four experiments were carried out with organisms collected from three different sites on the Brazilian coast (Torres - Rio Grande do Sul, Farol de Santa Marta - Santa Catarina, and Aracruz - Espírito Santo). S. brasiliensis were anesthetized, sexed, measured, classified by size in small (< 30 mm), medium (≥ 30 to ≤ 40 mm), or big (> 40 mm) and injected in the foot muscle with 0...
May 15, 2018: Ecotoxicology and Environmental Safety
https://www.readbyqxmd.com/read/29775469/pioneer-farming-in-southeast-europe-during-the-early-sixth-millennium-bc-climate-related-adaptations-in-the-exploitation-of-plants-and-animals
#6
Maria Ivanova, Bea De Cupere, Jonathan Ethier, Elena Marinova
The Old World farming system arose in the semi-arid Mediterranean environments of southwest Asia. Pioneer farmers settling the interior of the Balkans by the early sixth millennium BC were among the first to introduce southwest Asian-style cultivation and herding into areas with increasingly continental temperate conditions. Previous research has shown that the bioarchaeological assemblages from early farming sites in southeast Europe vary in their proportions of plant and animal taxa, but the relationship between taxonomic variation and climate has remained poorly understood...
2018: PloS One
https://www.readbyqxmd.com/read/29775352/three-dimensional-color-code-thresholds-via-statistical-mechanical-mapping
#7
Aleksander Kubica, Michael E Beverland, Fernando Brandão, John Preskill, Krysta M Svore
Three-dimensional (3D) color codes have advantages for fault-tolerant quantum computing, such as protected quantum gates with relatively low overhead and robustness against imperfect measurement of error syndromes. Here we investigate the storage threshold error rates for bit-flip and phase-flip noise in the 3D color code (3DCC) on the body-centered cubic lattice, assuming perfect syndrome measurements. In particular, by exploiting a connection between error correction and statistical mechanics, we estimate the threshold for 1D stringlike and 2D sheetlike logical operators to be p_{3DCC}^{(1)}≃1...
May 4, 2018: Physical Review Letters
https://www.readbyqxmd.com/read/29774433/dynamic-and-thermodynamic-crossover-scenarios-in-the-kob-andersen-mixture-insights-from-multi-cpu-and-multi-gpu-simulations
#8
Daniele Coslovich, Misaki Ozawa, Walter Kob
The physical behavior of glass-forming liquids presents complex features of both dynamic and thermodynamic nature. Some studies indicate the presence of thermodynamic anomalies and of crossovers in the dynamic properties, but their origin and degree of universality is difficult to assess. Moreover, conventional simulations are barely able to cover the range of temperatures at which these crossovers usually occur. To address these issues, we simulate the Kob-Andersen Lennard-Jones mixture using efficient protocols based on multi-CPU and multi-GPU parallel tempering...
May 17, 2018: European Physical Journal. E, Soft Matter
https://www.readbyqxmd.com/read/29772915/a-comparison-of-the-antifouling-performance-of-air-plasma-spray-aps-ceramic-and-high-velocity-oxygen-fuel-hvof-coatings-for-use-in-marine-hydraulic-applications
#9
Richard Piola, Andrew S M Ang, Matthew Leigh, Scott A Wade
Maritime hydraulic components are often exposed to harsh environmental conditions which can lead to accelerated deterioration, reduced function, equipment failure and costly repair. Two leading causes of maritime hydraulic failure are biofouling accumulation and corrosion. This study examined the antifouling performance of three candidate replacement high velocity oxygen fuel (HVOF) coatings relative to the performance of the current baseline air plasma spray (APS) ceramic coating for protection of hydraulic actuators...
May 18, 2018: Biofouling
https://www.readbyqxmd.com/read/29771952/analysis-of-multi-level-spatial-data-reveals-strong-synchrony-in-seasonal-influenza-epidemics-across-norway-sweden-and-denmark
#10
Sinead E Morris, Birgitte Freiesleben de Blasio, Cécile Viboud, Amy Wesolowski, Ottar N Bjørnstad, Bryan T Grenfell
Population structure, spatial diffusion, and climatic conditions mediate the spatiotemporal spread of seasonal influenza in temperate regions. However, much of our knowledge of these dynamics stems from a few well-studied countries, such as the United States (US), and the extent to which this applies in different demographic and climatic environments is not fully understood. Using novel data from Norway, Sweden, and Denmark, we applied wavelet analysis and non-parametric spatial statistics to explore the spatiotemporal dynamics of influenza transmission at regional and international scales...
2018: PloS One
https://www.readbyqxmd.com/read/29770275/plant-fungal-bacterial-and-nitrogen-interactions-in-the-litter-layer-of-a-native-patagonian-forest
#11
Lucía Vivanco, Nicolás Rascovan, Amy T Austin
Plant-microbial interactions in the litter layer represent one of the most relevant interactions for biogeochemical cycling as litter decomposition is a key first step in carbon and nitrogen turnover. However, our understanding of these interactions in the litter layer remains elusive. In an old-growth mixed Nothofagus forest in Patagonia, we studied the effects of single tree species identity and the mixture of three tree species on the fungal and bacterial composition in the litter layer. We also evaluated the effects of nitrogen (N) addition on these plant-microbial interactions...
2018: PeerJ
https://www.readbyqxmd.com/read/29769824/immune-response-in-women-during-exercise-in-the-heat-a-spotlight-on-oral-contraception
#12
Brianna Larsen, Amanda J Cox, Karlee Quinn, Rhiannon Fisher, Clare Minahan
This study compared the immune and stress response of oral contraceptive users (WomenOC; n = 9) to normally-menstruating women (WomenNM; n = 9) at rest and during exercise in temperate (TEMP; 22°C) and hot (HEAT; 35°C) conditions. Participants performed a 3-stage cycling trial in each condition at 90% (Stage 1; 30 min), 135% (Stage 2; 15 min), and 180% (Stage 3; 7.5 min) of lactate threshold 1. C-reactive protein (CRP) and immune cell counts were measured at rest, and serum cytokines (IL-1β, IL-1RA, IL-6, IL-8, IL-10, and TNF-α) and salivary cortisol were evaluated before and after exercise in both the TEMP and HEAT conditions...
June 2018: Journal of Sports Science & Medicine
https://www.readbyqxmd.com/read/29769652/niche-conservatism-of-aedes-albopictus-and-aedes-aegypti-two-mosquito-species-with-different-invasion-histories
#13
Sarah Cunze, Judith Kochmann, Lisa K Koch, Sven Klimpel
Biological invasions have been associated with niche changes; however, their occurrence is still debated. We assess whether climatic niches between native and non-native ranges have changed during the invasion process using two globally spread mosquitoes as model species, Aedes albopictus and Aedes aegypti. Considering the different time spans since their invasions (>300 vs. 30-40 years), niche changes were expected to be more likely for Ae. aegypti than for Ae. albopictus. We used temperature and precipitation variables as descriptors for the realized climatic niches and different niche metrics to detect niche dynamics in the native and non-native ranges...
May 16, 2018: Scientific Reports
https://www.readbyqxmd.com/read/29769098/wing-morphometrics-of-aedes-ochlerotatus-albifasciatus-macquart-1838-diptera-culicidae-from-different-climatic-regions-of-argentina
#14
Maximiliano J Garzón, Nicolás Schweigmann
BACKGROUND: Gene flow restrictions between populations of Aedes albifasciatus, the vector of Western equine encephalitis and Dirophilaria immitis, have been described in the central region of Argentina. Genetic and eco-physiological variations usually result in local forms reflecting the climatic regions. Mosquito wings and their different parts have ecological functions in flight and communication. Therefore, wing shape could be considered an aspect of sexual dimorphism, and its eco-physiological responses can be expressed as morphological changes induced by the environment...
May 16, 2018: Parasites & Vectors
https://www.readbyqxmd.com/read/29767850/forest-aging-disturbance-and-the-carbon-cycle
#15
REVIEW
Peter S Curtis, Christopher M Gough
Contents Summary I. Introduction II. Forest aging and carbon storage III. Successional trends of NEP in northern deciduous forests IV. Mechanisms sustaining NEP in aging deciduous forests Acknowledgements References SUMMARY: Large areas of forestland in temperate North America, as well as in other parts of the world, are growing older and will soon transition into middle and then late successional stages exceeding 100 yr in age. These ecosystems have been important regional carbon sinks as they recovered from prior anthropogenic and natural disturbance, but their future sink strength, or annual rate of carbon storage, is in question...
May 16, 2018: New Phytologist
https://www.readbyqxmd.com/read/29766270/parasitological-and-molecular-diagnostic-of-a-clinical-babesia-caballi-outbreak-in-southern-romania
#16
Mariana Ionita, Isabela Madalina Nicorescu, Kurt Pfister, Ioan Liviu Mitrea
Equine piroplasmosis (EP) is a tick-borne disease of equids caused by Babesia caballi and/or Theileria equi, which is endemic in many tropical and temperate areas of the world. However, clinical outbreaks of EP in Romania during the last decades have not been reported Therefore, the aim of this paper is (i) to describe a clinical B. caballi outbreak in horses on several farms in Southern Romania using a diagnostic and therapeutic approach and (ii) the molecular diagnostic of EP in an endemic area of Romania...
May 15, 2018: Parasitology Research
https://www.readbyqxmd.com/read/29764927/identification-of-genes-related-to-cold-tolerance-and-a-functional-allele-that-confers-cold-tolerance
#17
Ning Xiao, Yong Gao, Huangjun Qian, Qiang Gao, Yunyu Wu, Dongping Zhang, Zhiping Wang, Xiaoxiang Zhang, Ling Yu, Yuhong Li, Cunhong Pan, Guangqing Liu, Changhai Zhou, Min Jiang, Niansheng Huang, Zhuo Chen, Chengzhi Liang, Zhengyuan Dai, Jianmin Chen, Aihong Li
Cold stress is a major factor limiting rice (Oryza sativa L.) production worldwide, especially at the seedling and booting stages. Identification of genes associated with cold tolerance (CT) in rice is important for sustainable food production. Here, we report the results of a genome-wide association study (GWAS) to identify the genetic loci associated with CT by using a 1,033-accession diversity panel. We identified five CT-related genetic loci at the booting stage. Accessions carrying multiple cold-tolerant alleles displayed a higher seed setting rate than did accessions that had no cold-tolerant alleles or carried a single allele...
May 15, 2018: Plant Physiology
https://www.readbyqxmd.com/read/29763837/different-meteorological-parameters-influence-metapneumovirus-and-respiratory-syncytial-virus-activity
#18
Magali Darniot, Cécile Pitoiset, Laurine Millière, Ludwig Serge Aho-Glélé, Emmanuel Florentin, Jean-Baptiste Bour, Catherine Manoha
BACKGROUND: Both human metapneumovirus (hMPV) and respiratory syncytial virus (RSV) cause epidemics during the cold season in temperate climates. OBJECTIVES: The purpose of this study was to find out whether climatic factors are associated with RSV and hMPV epidemics. STUDY DESIGN: Our study was based on data from 4300 patients admitted to the Dijon University Hospital for acute respiratory infection (ARI) over three winter seasons chosen for their dissimilar meteorological and virological patterns...
May 5, 2018: Journal of Clinical Virology: the Official Publication of the Pan American Society for Clinical Virology
https://www.readbyqxmd.com/read/29762516/seasonal-patterns-in-the-prevalence-and-diversity-of-tick-borne-borrelia-burgdorferi-sensu-lato-anaplasma-phagocytophilum-and-rickettsia-spp-in-an-urban-temperate-forest-in-south-western-slovakia
#19
Michal Chvostáč, Eva Špitalská, Radovan Václav, Tatiana Vaculová, Lenka Minichová, Markéta Derdáková
In Europe, Ixodes ricinus is the most important vector of tick-borne zoonotic bacteria. It transmits spirochaetes from the Borrelia burgdorferi sensu lato complex, Anaplasma phagocytophilum and Rickettsia spp. Although spatial differences in the prevalence of tick-borne pathogens have been intensively studied, seasonal (within-year) fluctuations in the prevalence of these pathogens within sites are often overlooked. We analyzed the occurrence and seasonal dynamics of Ixodes ricinus in an urban forest in Bratislava, Slovakia...
May 15, 2018: International Journal of Environmental Research and Public Health
https://www.readbyqxmd.com/read/29761957/-the-research-of-near-infrared-blood-glucose-measurement-using-particle-swarm-optimization-and-artificial-neural-network
#20
Juan Dai, Zhong Ji, Yubao Du
Existing near-infrared non-invasive blood glucose detection modelings mostly detect multi-spectral signals with different wavelength, which is not conducive to the popularization of non-invasive glucose meter at home and does not consider the physiological glucose dynamics of individuals. In order to solve these problems, this study presented a non-invasive blood glucose detection model combining particle swarm optimization (PSO) and artificial neural network (ANN) by using the 1 550 nm near-infrared absorbance as the independent variable and the concentration of blood glucose as the dependent variable, named as PSO-2ANN...
August 1, 2017: Sheng Wu Yi Xue Gong Cheng Xue za Zhi, Journal of Biomedical Engineering, Shengwu Yixue Gongchengxue Zazhi
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