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https://www.readbyqxmd.com/read/28732405/increased-n2o-emission-by-inhibited-plant-growth-in-the-co2-leaked-soil-environment-simulation-of-co2-leakage-from-carbon-capture-and-storage-ccs-site
#1
You Jin Kim, Wenmei He, Daegeun Ko, Haegeun Chung, Gayoung Yoo
Atmospheric carbon dioxide (CO2) concentrations is continuing to increase due to anthropogenic activity, and geological CO2 storage via carbon capture and storage (CCS) technology can be an effective way to mitigate global warming due to CO2 emission. However, the possibility of CO2 leakage from reservoirs and pipelines exists, and such leakage could negatively affect organisms in the soil environment. Therefore, to determine the impacts of geological CO2 leakage on plant and soil processes, we conducted a greenhouse study in which plants and soils were exposed to high levels of soil CO2...
July 17, 2017: Science of the Total Environment
https://www.readbyqxmd.com/read/28732298/stomatal-and-non-stomatal-factors-regulated-the-photosynthesis-of-soybean-seedlings-in-the-present-of-exogenous-bisphenol-a
#2
Liya Jiao, Lihong Wang, Qing Zhou, Xiaohua Huang
Bisphenol A (BPA) is an emerging environmental endocrine disruptor that has toxic effects on plants growth. Photosynthesis supplies the substances and energy required for plant growth, and regulated by stomatal and non-stomatal factors. Therefore, in this study, to reveal how BPA affects photosynthesis in soybean seedlings (Glycine max L.) from the perspective of stomatal and non-stomatal factors, the stomatal factors (stomatal conductance and behaviours) and non-stomatal factors (Hill reaction, apparent quantum efficiency, Rubisco activity, carboxylation efficiency, the maximum Rubisco carboxylation velocity, ribulose-1,5-bisphospate regeneration capacities mediated by maximum electron transport rates, and triose phosphate utilization rate) were investigated using a portable photosynthesis system...
July 18, 2017: Ecotoxicology and Environmental Safety
https://www.readbyqxmd.com/read/28732295/determination-of-54-pesticides-in-waters-of-the-iberian-douro-river-estuary-and-risk-assessment-of-environmentally-relevant-mixtures-using-theoretical-approaches-and-artemia-salina-and-daphnia-magna-bioassays
#3
Catarina Cruzeiro, Sofia Amaral, Eduardo Rocha, Maria João Rocha
As a case study, the estuary of the international Douro River (Iberian Peninsula) was sampled over a year (2010) at six sampling sites to determine the presence of 56 pesticides of different categories (insecticides, herbicides, and fungicides). 96% of measured pesticides were detected in 79% of the quantified samples. Individual average pesticide concentrations ranged from 39 to 1 265ng/L, indicating a ubiquitous presence of the selected compounds; moreover, twelve pesticides were above the 2013/39/EU Directive limits...
July 18, 2017: Ecotoxicology and Environmental Safety
https://www.readbyqxmd.com/read/28732267/understanding-the-holobiont-the-interdependence-of-plants-and-their-microbiome
#4
REVIEW
Carmen Sánchez-Cañizares, Beatriz Jorrín, Philip S Poole, Andrzej Tkacz
The holobiont is composed by the plant and its microbiome. In a similar way to ecological systems of higher organisms, the holobiont shows interdependent and complex dynamics [1,2]. While plants originate from seeds, the microbiome has a multitude of sources. The assemblage of these communities depends on the interaction between the emerging seedling and its surrounding environment, with soil being the main source. These microbial communities are controlled by the plant through different strategies, such as the specific profile of root exudates and its immune system...
July 18, 2017: Current Opinion in Microbiology
https://www.readbyqxmd.com/read/28732183/new-resins-for-dental-composites
#5
A P P Fugolin, C S Pfeifer
Restorative composites have evolved significantly since they were first introduced in the early 1960s, with most of the development concentrating on the filler technology. This has led to improved mechanical properties, notably wear resistance, and has expanded the use of composites to larger posterior restorations. On the organic matrix side, concerns over the polymerization stress and the potential damage to the bonded interface have dominated research in the past 20 y, with many "low-shrinkage" composites being launched commercially...
July 1, 2017: Journal of Dental Research
https://www.readbyqxmd.com/read/28732178/reproductive-plasticity-in-the-nematode-gyrinicola-batrachiensis-does-an-intermediate-reproductive-strategy-exist-in-sexually-reproducing-didelphic-pinworms
#6
Jasmine N Childress, Sean C Rogers, Matthew G Bolek, Gabriel J Langford
Phenotypic plasticity is a process in which multiple phenotypes arise from one genotype due to environmental selection pressures. Gyrinicola batrachiensis has a heterogeneous reproductive strategy such that females reproduce either via parthogenesis with thick-shelled eggs in a single uterus or sexual reproduction with thick and thin-shelled eggs in separate uterine horns. No evidence exists that strains of G. batrachiensis are able to switch between parthenogenetic and sexual reproduction. Thin-shelled eggs are autoinfective while thick-shelled eggs act as transmission agents once shed into the aquatic environment...
July 21, 2017: Journal of Parasitology
https://www.readbyqxmd.com/read/28732168/inland-sea-spray-aerosol-transport-and-incomplete-chloride-depletion-varying-degrees-of-reactive-processing-observed-during-soas
#7
Amy Lynne Bondy, Bingbing Wang, Alexander Laskin, Rebecca Lynn Craig, Manelisi Victor Nhliziyo, Steven Bertman, Kerri A Pratt, Paul B Shepson, Andrew P Ault
Multiphase reactions involving sea spray aerosol (SSA) impact trace gas budgets in coastal regions by acting as a reservoir for oxidized nitrogen and sulfur species, as well as a source of halogen gases (HCl, ClNO2, etc.). While most studies of multiphase reactions on SSA have focused on marine environments, far less is known about SSA transported inland. Herein, single particle measurements of SSA are reported at a site > 320 km from the Gulf of Mexico, with transport times of 7-68 h. Samples were collected during the Southern Oxidant and Aerosol Study (SOAS) in June-July 2013 near Centreville, Alabama...
July 21, 2017: Environmental Science & Technology
https://www.readbyqxmd.com/read/28732161/an-elegant-ph-responsive-nanovehicle-for-drug-delivery-based-on-triazine-dendrimer-modified-magnetic-nanoparticles
#8
Amir Landarani-Isfahani, Majid Moghadam, Shima Mohammadi, Maryam Royvaran, Naimeh Moshtael-Arani, Saghar Rezaei, Shahram Tangestaninejad, Valiollah Mirkhani, Iraj Mohammadpoor-Baltork
Owing to properties of magnetic nanoparticles and elegant three-dimensional macromolecule architectural features, dendrimeric structures have been investigated as nanoscale drug delivery systems. In this paper, a novel magnetic nanocarrier, generation two (G2) triazine dendrimer modified Fe3O4@SiO2 magnetic nanoparticles (MNP-G2), was designed, fabricated and characterized by Fourier transform infrared (FT-IR), thermal gravimetric analysis (TGA), vibrating sample magnetometer (VSM), field emission scanning electron microscopy (FE-SEM), transmission electron microscopy (TEM) and dynamic light scattering (DLS)...
July 21, 2017: Langmuir: the ACS Journal of Surfaces and Colloids
https://www.readbyqxmd.com/read/28732156/fixed-bed-modeling-of-nonsteroidal-anti-inflammatory-drug-removal-by-ion-exchange-in-synthetic-urine-mass-removal-or-toxicity-reduction
#9
Kelly Ann Landry, Treavor H Boyer
Ion-exchange removal of nonsteroidal anti-inflammatory drugs (NSAIDs) in synthetic urine can selectively remove pharmaceuticals with minimal co-removal of nutrients to enhance nutrient recovery efforts. However, the effect of endogenous metabolites in urine on ion-exchange removal, and the corresponding reduction in ecotoxicity potential of pharmaceuticals in treated urine entering the environment, is unknown. To assess treatment efficacy, this work paired predicted breakthrough curves determined by the homogenous surface diffusion model to an in vitro bioassay to evaluate COX-1 inhibition...
July 21, 2017: Environmental Science & Technology
https://www.readbyqxmd.com/read/28732154/ironing-out-genes-in-the-environment-an-experimental-study-of-the-dna-goethite-interface
#10
Michael P Schmidt, Carmen Enid Martinez
DNA fate in soil plays an important role in the cycling of genetic information in the environment. Adsorption onto mineral surfaces has great impact on this function. This study probes the kinetics, equilibrium behavior and bonding mechanisms associated with adsorption of DNA onto goethite, a common soil mineral. Surface sensitive ATR-FTIR and XPS approaches are applied to directly characterize the DNA-goethite interface. Adsorption kinetics follow a pseudo-first order model, suggesting adsorption rate is surface limited...
July 21, 2017: Langmuir: the ACS Journal of Surfaces and Colloids
https://www.readbyqxmd.com/read/28732151/patients-attitudes-and-experiences-of-disease-modifying-anti-rheumatic-drugs-in-rheumatoid-arthritis-and-spondyloarthritis-a-qualitative-synthesis
#11
Ayano Kelly, Kathleen Tymms, David J Tunnicliffe, Daniel Sumpton, Chandima Perera, Kieran Fallon, Jonathan C Craig, Walter Abhayaratna, Allison Tong
OBJECTIVES: Non-adherence to disease-modifying anti-rheumatic drugs (DMARDS) in rheumatoid arthritis (RA) and spondyloarthritis (SpA) results in increased disease activity and symptoms and poorer quality of life. We aimed to describe patients' attitudes and experiences of DMARDs in RA and SpA to inform strategies to improve medication adherence. METHODS: Databases (MEDLINE, Embase, PsycINFO, CINAHL) were searched to January 2016. Thematic synthesis was used to analyze the findings...
July 21, 2017: Arthritis Care & Research
https://www.readbyqxmd.com/read/28732079/lmp1-mediated-glycolysis-induces-myeloid-derived-suppressor-cell-expansion-in-nasopharyngeal-carcinoma
#12
Ting-Ting Cai, Shu-Biao Ye, Yi-Na Liu, Jia He, Qiu-Yan Chen, Hai-Qiang Mai, Chuan-Xia Zhang, Jun Cui, Xiao-Shi Zhang, Pierre Busson, Yi-Xin Zeng, Jiang Li
Myeloid-derived suppressor cells (MDSCs) are expanded in tumor microenvironments, including that of Epstein-Barr virus (EBV)-associated nasopharyngeal carcinoma (NPC). The link between MDSC expansion and EBV infection in NPC is unclear. Here, we show that EBV latent membrane protein 1 (LMP1) promotes MDSC expansion in the tumor microenvironment by promoting extra-mitochondrial glycolysis in malignant cells, which is a scenario for immune escape initially suggested by the frequent, concomitant detection of abundant LMP1, glucose transporter 1 (GLUT1) and CD33+ MDSCs in tumor sections...
July 21, 2017: PLoS Pathogens
https://www.readbyqxmd.com/read/28732062/a-drosophila-model-for-toxicogenomics-genetic-variation-in-susceptibility-to-heavy-metal-exposure
#13
Shanshan Zhou, Sarah E Luoma, Genevieve E St Armour, Esha Thakkar, Trudy F C Mackay, Robert R H Anholt
The genetic factors that give rise to variation in susceptibility to environmental toxins remain largely unexplored. Studies on genetic variation in susceptibility to environmental toxins are challenging in human populations, due to the variety of clinical symptoms and difficulty in determining which symptoms causally result from toxic exposure; uncontrolled environments, often with exposure to multiple toxicants; and difficulty in relating phenotypic effect size to toxic dose, especially when symptoms become manifest with a substantial time lag...
July 21, 2017: PLoS Genetics
https://www.readbyqxmd.com/read/28732050/a-heckman-selection-model-for-the-safety-analysis-of-signalized-intersections
#14
Xuecai Xu, S C Wong, Feng Zhu, Xin Pei, Helai Huang, Youjun Liu
PURPOSE: The objective of this paper is to provide a new method for estimating crash rate and severity simultaneously. METHODS: This study explores a Heckman selection model of the crash rate and severity simultaneously at different levels and a two-step procedure is used to investigate the crash rate and severity levels. The first step uses a probit regression model to determine the sample selection process, and the second step develops a multiple regression model to simultaneously evaluate the crash rate and severity for slight injury/kill or serious injury (KSI), respectively...
2017: PloS One
https://www.readbyqxmd.com/read/28732033/spatial-and-simultaneous-representative-seroprevalence-of-anti-toxoplasma-gondii-antibodies-in-owners-and-their-domiciled-dogs-in-a-major-city-of-southern-brazil
#15
Aline do Nascimento Benitez, Felippe Danyel Cardoso Martins, Marcelle Mareze, Nelson Jessé Rodrigues Santos, Fernanda Pinto Ferreira, Camila Marinelli Martins, João Luis Garcia, Regina Mitsuka-Breganó, Roberta Lemos Freire, Alexander Welker Biondo, Italmar Teodorico Navarro
Toxoplasmosis, caused by Toxoplasma gondii, has traditionally been considered an important water and foodborne protozoonosis with important public health considerations. Although felids play a well-established role as definitive hosts, canine epidemiological involvement in the parasite's life cycle remains questionable and controversial. The increasing closeness of the human-dog bond, particularly seen in urban settings, has been recognized as a historically unprecedented worldwide movement. Sharing daily lives in the same households, dogs may be exposed to similar associated risks of T...
2017: PloS One
https://www.readbyqxmd.com/read/28732029/the-tonic-immobility-test-do-wild-and-captive-golden-mantella-frogs-mantella-aurantiaca-have-the-same-response
#16
Luiza Figueiredo Passos, Gerardo Garcia, Robert John Young
Adaptations to captivity that reduce fitness are one of many reasons, which explain the low success rate of reintroductions. One way of testing this hypothesis is to compare an important behavioural response in captive and wild members of the same species. Thanatosis, is an anti-predator strategy that reduces the risk of death from predation, which is a common behavioral response in frogs. The study subjects for this investigation were captive and wild populations of Mantella aurantiaca. Thanatosis reaction was measured using the Tonic Immobility (TI) test, a method that consists of placing a frog on its back, restraining it in this position for a short period of time and then releasing it and measuring how much time was spent feigning death...
2017: PloS One
https://www.readbyqxmd.com/read/28732015/maintenance-costs-of-serotiny-in-a-variably-serotinous-pine-the-role-of-water-supply
#17
Ruth C Martín-Sanz, Marta Callejas-Díaz, Jeanne Tonnabel, José M Climent
Serotiny is an important adaptation for plants in fire-prone environments. However, different mechanisms also induce the opening of serotinous cones in the absence of fire in variably serotinous species. Xeriscence -cone opening driven by dry and hot conditions- is considered to be mediated only by the external environment, but endogenous factors could also play a significant role. Using the variably serotinous Pinus halepensis as our model species, we determined the effects of cone age and scales density in cone opening, and using in-situ and ex-situ manipulative experiments we investigated the role of water availability in the opening of serotinous cones...
2017: PloS One
https://www.readbyqxmd.com/read/28731928/serious-game-versus-online-course-for-pretraining-medical-students-before-a-simulation-based-mastery-learning-course-on-cardiopulmonary-resuscitation-a-randomised-controlled-study
#18
David Drummond, Paul Delval, Sonia Abdenouri, Jennifer Truchot, Pierre-François Ceccaldi, Patrick Plaisance, Alice Hadchouel, Antoine Tesnière
BACKGROUND: Although both recorded lectures and serious games have been used to pretrain health professionals before simulation training on cardiopulmonary resuscitation, they have never been compared. OBJECTIVE: The aim of this study was to compare an online course and a serious game for pretraining medical students before simulation-based mastery learning on the management of sudden cardiac arrest. DESIGN: A randomised controlled trial. Participants were pretrained using the online course or the serious game on day 1 and day 7...
July 20, 2017: European Journal of Anaesthesiology
https://www.readbyqxmd.com/read/28731859/air-pollution-and-parkinson-s-disease-evidence-and-future-directions
#19
REVIEW
Natalia Palacios
Parkinson's disease (PD) is a neurodegenerative disease of unknown etiology that is thought to be caused by a complex combination of environmental and/or genetic factors. Air pollution exposure is linked to numerous adverse effects on human health, including brain inflammation and oxidative stress, processes that are believed to contribute to the development and progression of PD. This review provides an overview of recent advances in the epidemiology of air pollution and PD, including evidence of the effects of various pollutants (ozone, PM10, PM2...
July 21, 2017: Reviews on Environmental Health
https://www.readbyqxmd.com/read/28731855/seeking-sexual-health-information-professionals-novel-experiences-of-the-barriers-that-prevent-female-adolescents-seeking-sexual-health-information
#20
Kerry McKellar, Linda Little, Michael A Smith, Elizabeth Sillence
Objective Sexual health professionals are key stakeholders in implementing sexual health intervention programmes, yet their views are largely absent from the literature. Sexual health professionals provide a unique perspective on teen sexual health issues as they engage in confidential discussions with a wide range of teenagers. This study aimed to provide an in-depth exploration of professionals' perceptions of teenagers' sexual health information seeking practices and barriers. Furthermore, the research provided a unique re-examination of key predictors of risky sexual behaviours, which have been highlighted by previous research...
July 21, 2017: International Journal of Adolescent Medicine and Health
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