keyword
MENU ▼
Read by QxMD icon Read
search

Conditions

keyword
https://www.readbyqxmd.com/read/29793207/infectivity-reduction-efficacy-of-uv-irradiation-and-peracetic-acid-uv-combined-treatment-on-ms2-bacteriophage-and-murine-norovirus-in-secondary-wastewater-effluent
#1
ShihChi Weng, Nathan Dunkin, Kellogg J Schwab, James McQuarrie, Kati Bell, Joseph G Jacangelo
Peracetic acid (PAA) is a strong oxidant/bactericide that has been applied in various industries (e.g., food processing, pharmaceuticals, medical device sterilization, etc.) as a disinfectant. There is increasing interest in using PAA for wastewater disinfection because it does not form halogenated byproducts, and no post-treatment quenching is required. Previous studies have demonstrated good efficiency in controlling bacteria in wastewater, but limited information is available for viruses, especially those hosted by mammals (e...
May 21, 2018: Journal of Environmental Management
https://www.readbyqxmd.com/read/29793204/influence-of-isolated-bacterial-strains-on-the-in-situ-biodegradation-of-endosulfan-and-the-reduction-of-endosulfan-contaminated-soil-toxicity
#2
Lingfen Kong, Yu Zhang, Lusheng Zhu, Jinhua Wang, Jun Wang, Zhongkun Du, Cheng Zhang
The recently discovered endosulfan-degrading bacterial strains Pusillimonas sp. JW2 and Bordetella petrii NS were isolated from endosulfan-polluted water and soil environments. The optimal conditions for the growth and biodegradation activity of the strains JW2 and NS were studied in detail. In addition, the ability of the strains JW2 and NS to biodegrade endosulfan in soils during in situ bioremediation experiments was investigated. At a concentration of 2 mg of endosulfan per kilogram of soil, both JW2 and NS had positive effects on the degradation of endosulfan; JW2 degraded 100% and 91...
May 21, 2018: Ecotoxicology and Environmental Safety
https://www.readbyqxmd.com/read/29793199/effects-of-acute-and-chronic-exposures-of-fluoxetine-on-the-chinese-fish-topmouth-gudgeon-pseudorasbora-parva
#3
Hongxing Chen, Xiangfeng Zeng, Lei Mu, Liping Hou, Bin Yang, Jianliang Zhao, Daniel Schlenk, Wu Dong, Lingtian Xie, Qianru Zhang
Fluoxetine is a selective serotonin reuptake inhibitor used as an antidepressant and has been frequently detected in aquatic environments. However, its effects in fish from Asia remain relatively less studied. In this study, the topmouth gudgeon Pseudorasbora parva was exposed to 0, 50, and 200 µg/L of fluoxetine for 4 h and 42 d. The effects of fluoxetine on biometrics were compared to biochemical endpoints indicative of stress in different fish tissues (brain, liver, gills and intestine) following exposures...
May 21, 2018: Ecotoxicology and Environmental Safety
https://www.readbyqxmd.com/read/29793198/assessment-of-cu-sub-lethal-toxicity-lc-50-in-the-cold-water-gorgonian-dentomuricea-meteor-under-a-deep-sea-mining-activity-scenario
#4
Inês Martins, António Godinho, Joana Goulart, Marina Carreiro-Silva
Previous aquaria-based experiments have shown dissolution and leaching of metals, especially copper (Cu), from the simulated sediment plumes generated during mining activities resulting in a pronounced increase of Cu contamination in the surrounding seawater. Metals are bioavailable to corals with food, through ingestion (particulate phase) and through tissue-facilitated transport (passive diffusion). With corals being particularly vulnerable to metal contamination, resuspension of metal-bearing sediments during mining activities represents an important ecological threat...
May 21, 2018: Environmental Pollution
https://www.readbyqxmd.com/read/29793193/a-validation-study-of-the-1-2-indandione-reagent-for-operational-use-in-the-uk-part-2-optimization-of-processing-conditions
#5
Niko Nicolasora, Rory Downham, Rachel-May Dyer, Laura Hussey, Aoife Luscombe, Vaughn Sears
This paper contains details of work carried out to identify the most effective processing conditions for the optimized 1,2-indandione/zn formulation developed for use under UK conditions. Using direct measurements of fluorescence taken from test spots of amino acids and eccrine sweat during oven processing, complemented with experiments on real fingermarks, it was established that processing temperatures above 120°C in the oven were detrimental to the fluorescence of the developed mark. Alternative methods of development to oven processing were found to be effective, but less controllable...
May 2, 2018: Forensic Science International
https://www.readbyqxmd.com/read/29793190/comparative-hazards-of-acute-myocardial-infarction-among-hospitalized-patients-with-methamphetamine-or-cocaine-use-disorders-a-retrospective-cohort-study
#6
Russell C Callaghan, Montana Halliday, Jodi Gatley, Jenna Sykes, Lawren Taylor, Claire Benny, Stephen J Kish
BACKGROUND: It is assumed that recreational use of methamphetamine can trigger acute myocardial infarction (AMI) events, but estimates of longitudinal hazards of AMI among methamphetamine users are lacking. METHODS: Retrospective cohort study: Competing-risks analysis was used to estimate time-to-AMI patterns in methamphetamine versus matched appendicitis (population-proxy) and matched cocaine (drug-control) groups. Cohorts were propensity-score-matched using demographic and clinical variables...
April 26, 2018: Drug and Alcohol Dependence
https://www.readbyqxmd.com/read/29793187/stapp-spatiotemporal-analysis-of-plantar-pressure-measurements-using-statistical-parametric-mapping
#7
Brian G Booth, Noël L W Keijsers, Jan Sijbers, Toon Huysmans
BACKGROUND: Pedobarography produces large sets of plantar pressure samples that are routinely subsampled (e.g. using regions of interest) or aggregated (e.g. center of pressure trajectories, peak pressure images) in order to simplify statistical analysis and provide intuitive clinical measures. RESEARCH QUESTION: We hypothesize that these data reductions discard gait information that can be used to differentiate between groups or conditions. METHODS: To test the hypothesis of null information loss, we created an implementation of statistical parametric mapping (SPM) for dynamic plantar pressure datasets (i...
May 3, 2018: Gait & Posture
https://www.readbyqxmd.com/read/29793174/effect-of-ca-2-ion-concentration-on-adsorption-of-poly-carboxylate-ether-based-pce-superplasticizer-on-mica
#8
Bo Wu, Byong-Wa Chun, Le Gu, Tonya L Kuhl
HYPOTHESIS: Poly(carboxylate ether)-based (PCE) superplasticizers consist of a carboxylic acid backbone and grafted poly(ethylene glycol) (PEG) side chains. Ca2+ ion bridging mechanism is commonly purported to control PCE's adsorption on negatively charged cement particle surfaces in cement suspension, thus PCE was expected to adsorb on negatively charged surfaces in synthetic pore solutions via Ca2+ /COO- interactions. EXPERIMENTS: Adsorption behaviors of a commercial PCE on negatively charged mica were studied in aqueous electrolyte solutions by a surface forces apparatus...
May 9, 2018: Journal of Colloid and Interface Science
https://www.readbyqxmd.com/read/29793164/childhood-socioeconomic-status-and-longitudinal-patterns-of-alcohol-problems-variation-across-etiological-pathways-in-genetic-risk
#9
Peter B Barr, Judy Silberg, Danielle M Dick, Hermine H Maes
Childhood socioeconomic status (SES) is an important aspect of early life environment associated with later life health/health behaviors, including alcohol misuse. However, alcohol misuse is modestly heritable and involves differing etiological pathways. Externalizing disorders show significant genetic overlap with substance use, suggesting an impulsivity pathway to alcohol misuse. Alcohol misuse also overlaps with internalizing disorders, suggesting alcohol is used to cope. These differing pathways could lead to different patterns over time and/or differential susceptibility to environmental conditions, such as childhood SES...
May 14, 2018: Social Science & Medicine
https://www.readbyqxmd.com/read/29793162/new-insights-into-the-formation-of-silver-based-nanoparticles-under-natural-and-semi-natural-conditions
#10
Andreas Wimmer, Anna Kalinnik, Michael Schuster
For the first time, the natural formation of silver-based nanoparticles (Ag-b-NPs) was studied in field investigations of two pre-alpine lakes in Germany that contain geogenic silver traces in the sub-ng L-1 range. Light-sensitive microorganisms most likely accumulate and transport these silver traces from deeper water layers to the surface. At the surface of the eutrophic lake, approximately 40% of total silver (5.7 ng L-1 ) consisted of Ag-b-NPs, whereas in the oligotrophic lake with similar enrichment of silver species, no Ag-b-NPs were detected...
May 10, 2018: Water Research
https://www.readbyqxmd.com/read/29793161/exposure-of-microcystis-aeruginosa-to-hydrogen-peroxide-and-titanium-dioxide-under-visible-light-conditions-modeling-the-impact-of-hydrogen-peroxide-and-hydroxyl-radical-on-cell-rupture-and-microcystin-degradation
#11
Che-Wei Chang, Xiangchen Huo, Tsair-Fuh Lin
The aims of this study are to evaluate, under visible light conditions, the ability of H2 O2 and TiO2 to produce OH, their quantitative impacts on the cell integrity of Microcystis, and the subsequent release and degradation of microcystins (MCs). A sequential reaction model was developed, including one sub-model to simulate the rupture kinetics for cell integrity of Microcystis, and another to describe the release and degradation of MCs. For cell rupture, the dual-oxidant Delayed Chick-Watson model (DCWM) and dual-oxidant Hom model (HM) were first proposed and developed, giving excellent simulation results of cell rupture kinetics...
May 14, 2018: Water Research
https://www.readbyqxmd.com/read/29793160/water-footprint-characteristic-of-less-developed-water-rich-regions-case-of-yunnan-china
#12
Yiying Qian, Huijuan Dong, Yong Geng, Shaozhuo Zhong, Xu Tian, Yanhong Yu, Yihui Chen, Dana Avery Moss
Rapid industrialization and urbanization pose pressure on water resources in China. Virtual water trade proves to be an increasingly useful tool in water stress alleviation for water-scarce regions, while bringing opportunities and challenges for less developed water-rich regions. In this study, Yunnan, a typical province in southwest China, was selected as the case study area to explore its potential in socio-economic development in the context of water sustainability. Both input-output analysis and structural decomposition analysis on Yunnan's water footprint for the period of 2002-2012 were performed at not only an aggregated level but also a sectoral level...
March 30, 2018: Water Research
https://www.readbyqxmd.com/read/29793158/botulinum-toxin-type-a-affects-mechanics-of-non-injected-antagonistic-rat-muscles
#13
Filiz Ateş, Can A Yucesoy
Botulinum toxin type A (BTX-A) effects on the mechanics of non-injected antagonistic muscles are unknown. The aim was to test the following hypotheses in a rat model: BTX-A injected into gastrocnemius medialis (GM) and lateralis (GL) (1) decreases forces of the antagonistic tibialis anterior (TA) and extensor digitorum longus (EDL), (2) reduces length range of force exertion and (3) increases passive forces of the TA, and (4) changes inter-antagonistic and inter-synergistic epimuscular myofascial force transmission (EMFT)...
May 17, 2018: Journal of the Mechanical Behavior of Biomedical Materials
https://www.readbyqxmd.com/read/29793153/effects-of-mg-2-on-recovery-of-nmda-receptors-from-inhibition-by-memantine-and-ketamine-reveal-properties-of-a-second-site
#14
Nathan G Glasgow, Madeleine R Wilcox, Jon W Johnson
Memantine and ketamine are NMDA receptor (NMDAR) open channel blockers that are thought to act via similar mechanisms at NMDARs, but exhibit divergent clinical effects. Both drugs act by entering open NMDARs and binding at a site deep within the ion channel (the deep site) at which the endogenous NMDAR channel blocker Mg2+ also binds. Under physiological conditions, Mg2+ increases the IC50 s of memantine and ketamine through competition for binding at the deep site. Memantine also can inhibit NMDARs after associating with a second site accessible in the absence of agonist, a process termed second site inhibition (SSI) that is not observed with ketamine...
May 12, 2018: Neuropharmacology
https://www.readbyqxmd.com/read/29793152/identification-of-seven-polyamine-oxidase-genes-in-tomato-solanum-lycopersicum-l-and-their-expression-profiles-under-physiological-and-various-stress-conditions
#15
Yanwei Hao, Binbin Huang, Dongyu Jia, Taylor Mann, Xinyi Jiang, Yuxing Qiu, Masaru Niitsu, Thomas Berberich, Tomonobu Kusano, Taibo Liu
Polyamines (PAs) are implicated in developmental processes and stress responses of plants. Polyamine oxidases (PAOs), flavin adenine dinucleotide-dependent enzymes that function in PA catabolism, play a critical role. Even though PAO gene families of Arabidopsis and rice have been intensely characterized and their expression in response to developmental and environmental changes has been investigated, little is known about PAOs in tomato (Solanum lycopersicum). We found seven PAO genes in S. lycopersicum and named them SlPAO1∼7...
May 15, 2018: Journal of Plant Physiology
https://www.readbyqxmd.com/read/29793132/ph-responsive-label-assisted-click-chemistry-triggered-sensitivity-amplification-for-ultrasensitive-electrochemical-detection-of-carbohydrate-antigen-24-2
#16
Yun Zheng, Lihua Zhao, Zhanfang Ma
Sensitivity amplification strategy by implementing click chemistry in the construction of biosensing interface can efficiently improve the performance of immunosensor. Herein, we developed a sandwich-type amperometric immunosensor for ultrasensitive detection of carbohydrate antigen 24-2 (CA 242) based on pH responsive label-assisted click chemistry triggered sensitivity amplification strategy. The sensitivity of amperometric immunosensor relies on the current response differences (ΔI) caused by per unit concentration target analyte...
May 15, 2018: Biosensors & Bioelectronics
https://www.readbyqxmd.com/read/29793124/how-to-manage-patellofemoral-pain-understanding-the-multifactorial-nature-and-treatment-options
#17
Simon Lack, Bradley Neal, Danilo De Oliveira Silva, Christian Barton
Patellofemoral pain (PFP) is one of the most prevalent conditions within sports medicine, orthopaedic and general practice settings. Long-term treatment outcomes are poor, with estimates that more than 50% of people with the condition will report symptoms beyond 5 years following diagnosis. Additionally, emerging evidence indicates that PFP may be on a continuum with patellofemoral osteoarthritis. Consensus of world leading clinicians and academics highlights the potential benefit of delivering tailored interventions, specific to an individual's needs, to improve patient outcome...
April 12, 2018: Physical Therapy in Sport
https://www.readbyqxmd.com/read/29793119/bioaugmentation-potential-of-a-newly-isolated-strain-sphingomonas-sp-njust37-for-the-treatment-of-wastewater-containing-highly-toxic-and-recalcitrant-tricyclazole
#18
Haobo Wu, Jinyou Shen, Xinbai Jiang, Xiaodong Liu, Xiuyun Sun, Jiansheng Li, Weiqing Han, Yang Mu, Lianjun Wang
In order to develop an effective bioaugmentation strategy for the removal of highly toxic and recalcitrant tricyclazole from wastewater, a tricyclazole degrading strain was firstly successfully isolated and identified as Sphingomonas sp. NJUST37. In batch reactors, 100 mg L-1 tricyclazole could be completely removed within 102 h, which was accompanied by significant biomass increase, TOC and COD removal, as well as toxicity reduction. Chromatography analysis and density functional theory simulation indicated that monooxygenation occurred firstly, followed by triazole ring cleavage, decyanation reaction, hydration reaction, deamination, dihydroxylation and final mineralization reaction...
May 19, 2018: Bioresource Technology
https://www.readbyqxmd.com/read/29793099/carbon-monoxide-analysis-method-in-human-blood-by-airtight-gas-syringe-gas-chromatography-mass-spectrometry-ags-gc-ms-relevance-for-postmortem-poisoning-diagnosis
#19
S Oliverio, V Varlet
Carbon monoxide is one of the most abundant toxic air pollutants. Symptoms of a CO intoxication are non-specific, leading to a high number of misdiagnosed CO poisoning cases that are missing in the disease statistics. The chemical nature of the molecule makes it difficult to detect for long periods and at low levels, thus requiring a very accurate and sensitive method. Current methods capable of accurate and sensitive analyses are available, however an inconsistency between results and symptoms are frequently reported...
May 18, 2018: Journal of Chromatography. B, Analytical Technologies in the Biomedical and Life Sciences
https://www.readbyqxmd.com/read/29793089/gold-and-gold-silver-alloy-nanoparticles-enhance-the-myogenic-differentiation-of-myoblasts-through-p38-mapk-signaling-pathway-and-promote-in-vivo-skeletal-muscle-regeneration
#20
Juan Ge, Kai Liu, Wen Niu, Mi Chen, Min Wang, Yumeng Xue, Chuanbo Gao, Peter X Ma, Bo Lei
Under the severe trauma condition, the skeletal muscles regeneration process is inhibited by forming fibrous scar tissues. Understanding the interaction between bioactive nanomaterials and myoblasts perhaps has important effect on the enhanced skeletal muscle tissue regeneration. Herein, we investigate the effect of monodispersed gold and gold-silver nanoparticles (AuNPs and Au-AgNPs) on the proliferation, myogenic differentiation and associated molecular mechanism of myoblasts (C2C12), as well as the in vivo skeletal muscle tissue regeneration...
May 18, 2018: Biomaterials
keyword
keyword
54584
1
2
Fetch more papers »
Fetching more papers... Fetching...
Read by QxMD. Sign in or create an account to discover new knowledge that matter to you.
Remove bar
Read by QxMD icon Read
×

Search Tips

Use Boolean operators: AND/OR

diabetic AND foot
diabetes OR diabetic

Exclude a word using the 'minus' sign

Virchow -triad

Use Parentheses

water AND (cup OR glass)

Add an asterisk (*) at end of a word to include word stems

Neuro* will search for Neurology, Neuroscientist, Neurological, and so on

Use quotes to search for an exact phrase

"primary prevention of cancer"
(heart or cardiac or cardio*) AND arrest -"American Heart Association"