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https://www.readbyqxmd.com/read/27915067/the-feasibility-and-effects-of-acupuncture-in-an-adolescent-nordic-ski-population
#1
Kristin L Garlanger, William H Fredericks, Alexander Do, Brent A Bauer, Edward R Laskowski
BACKGROUND: Studies investigating the use and effectiveness of acupuncture in adults post exercise have been well documented. Fewer studies involving acupuncture have been completed in the adolescent athlete population. To our knowledge there are no published studies that investigate the use of acupuncture in adolescent athletes within their field of play. OBJECTIVE: To primarily assess the feasibility of performing acupuncture in adolescent Nordic skiers within their athletic environment, and secondarily to measure the effect of acupuncture on muscle soreness and sense of well-being...
November 30, 2016: PM & R: the Journal of Injury, Function, and Rehabilitation
https://www.readbyqxmd.com/read/27914349/effects-of-clay-minerals-hydroxides-and-timing-of-dissolved-organic-matter-addition-on-the-competitive-sorption-of-copper-nickel-and-zinc-a-column-experiment
#2
Yasser Refaey, Boris Jansen, John R Parsons, Pim de Voogt, Simone Bagnis, Adriaan Markus, Abdel-Hamid El-Shater, Abdel-Aziz El-Haddad, Karsten Kalbitz
Infiltration of heavy metal (HM) polluted wastewater can seriously compromise soil and groundwater quality. Interactions between mineral soil components (e.g. clay minerals) and dissolved organic matter (DOM) play a crucial role in determining HM mobility in soils. In this study, the influence of the timing of addition of DOM, i.e. concurrent with or prior to HMs, on HM mobility was explored in a set of continuous flow column experiments using well defined natural soil samples amended with goethite, birnessite and/or smectite...
November 30, 2016: Journal of Environmental Management
https://www.readbyqxmd.com/read/27910796/reinforcement-of-emergency-department-reduces-acute-admissions-to-medical-department
#3
Mansoor Ahmed Dawood, Gideon Ertner, Jacob Hansen-Schwartz
INTRODUCTION: The medical decision capacity of emergency departments (ED) may rest within the department itself or depend on external consultation. The stepwise development of the ED at Zealand University Hospital, Køge, was used to analyse the influence of medical organisation in the ED on the hospital admission pattern. METHODS: Data were recorded for the month of September of 2009, 2012 and 2014. These periods corresponded to the establishment of the department in 2009 and the 2012-period before organisational change was initiated in 2013, with a substantial increase in the number of senior physicians directly in charge of clinical decisions and the establishment of a limited bedding capacity...
December 2016: Danish Medical Journal
https://www.readbyqxmd.com/read/27909755/leachate-properties-and-cadmium-migration-through-freeze-thaw-treated-soil-columns
#4
Meng Xu, Yue Zheng, Weiwei Chen, Na Mao, Ping Guo
Soil column leaching experiments were conducted to study the effects of multiple freeze-thaw cycles on the vertical migration of cadmium (Cd). Three Cd-spiked leaching solutions of different properties were derived from snowmelt, sludge, and straw, designated as B, W and J, respectively. The leaching solutions varied in dissolved organic matter (DOM) concentrations in the order of J > W > B. Changes in leachate properties and Cd concentration were observed. The results showed that pH values of all the leachate solutions through freeze-thaw treated soil columns were higher than those of leachates through unfrozen soils...
December 1, 2016: Bulletin of Environmental Contamination and Toxicology
https://www.readbyqxmd.com/read/27895796/promotion-of-metastasis-of-thyroid-cancer-cells-via-nrp-2-mediated-induction
#5
Dom-Gene Tu, Wen-Wei Chang, Ming-Shiou Jan, Chi-Wen Tu, Yin-Che Lu, Chien-Kuo Tai
Tumor-node-metastasis is one of the leading causes of morbidity and mortality in thyroid cancer patients. Upregulation of vascular endothelial growth factor-C (VEGF-C) increases the migratory ability of thyroid cancer cells to lymph nodes. Expression of neuropilin-2 (NRP-2), the co-receptor of VEGF-C, has been reported to be correlated with lymph node metastasis in human thyroid cancer. The present study investigated the role of VEGF-C/NRP-2 signaling in the regulation of metastasis of two different types of human thyroid cancer cells...
November 2016: Oncology Letters
https://www.readbyqxmd.com/read/27879330/quantitative-transcriptomics-reveals-the-growth-and-nutrient-dependent-response-of-a-streamlined-marine-methylotroph-to-methanol-and-naturally-occurring-dissolved-organic-matter
#6
Scott M Gifford, Jamie W Becker, Oscar A Sosa, Daniel J Repeta, Edward F DeLong
The members of the OM43 clade of Betaproteobacteria are abundant coastal methylotrophs with a range of carbon-utilizing capabilities. However, their underlying transcriptional and metabolic responses to shifting conditions or different carbon substrates remain poorly understood. We examined the transcriptional dynamics of OM43 isolate NB0046 subjected to various inorganic nutrient, vitamin, and carbon substrate regimes over different growth phases to (i) develop a quantitative model of its mRNA content; (ii) identify transcriptional markers of physiological activity, nutritional state, and carbon and energy utilization; and (iii) identify pathways involved in methanol or naturally occurring dissolved organic matter (DOM) metabolism...
November 22, 2016: MBio
https://www.readbyqxmd.com/read/27871610/solid-phase-extraction-stepwise-elution-spe-se-procedure-for-isolation-of-dissolved-organic-matter-prior-to-esi-ft-icr-ms-analysis
#7
Jitao Lv, Shuzhen Zhang, Lei Luo, Dong Cao
Characterization of dissolved organic matter (DOM) at the molecular level will greatly improve our understanding of its bio-geochemical role in controlling the fate of contaminants in the environment, and Fourier transform ion cyclotron resonance mass spectrometry (FT-ICR-MS) is the most powerful analytical technique for this purpose. Before FT-ICR-MS analysis, isolation, desalination and concentration of DOM are necessary, and solid-phase extraction (SPE) is the most widely applied pretreatment procedure. However, some molecular information is lost using conventional SPE methods...
December 15, 2016: Analytica Chimica Acta
https://www.readbyqxmd.com/read/27871050/removal-characteristics-of-don-in-pharmaceutical-wastewater-and-its-influence-on-the-n-nitrosodimethylamine-formation-potential-and-acute-toxicity-of-dom
#8
Haidong Hu, Cong Jiang, Haijun Ma, Lili Ding, Jinju Geng, Ke Xu, Hui Huang, Hongqiang Ren
Previous research has focused on dissolved organic carbon (DOC) as a surrogate for dissolved organic matter (DOM) in pharmaceutical wastewater. Dissolved organic nitrogen (DON) as a part of DOM has received little attention. This study investigated the removal characteristics of DON and its influence on the N-nitrosodimethylamine formation potential (NDMA FP) and acute toxicity of DOM in a full-scale hydrolysis/acidification + anaerobic/anoxic/aerobic + moving bed biofilm reactor (MBBR) process treating pharmaceutical wastewater...
October 5, 2016: Water Research
https://www.readbyqxmd.com/read/27870350/the-periosteum-of-the-zygomatic-arch-vascularization-and-growth
#9
Susan W Herring, Pannee Ochareon
In addition to conveying the forces of attaching muscles and ligaments to the zygomatic and temporal bones, the arch periosteum is responsible for lateral apposition and medial resorption during the growth period. In this contribution, we describe the vasculature of the zygomatic arch in young pigs (Sus scrofa dom.) in order to understand the relationship of osseous and periosteal vessels to each other, to surrounding tissues, and to patterns of modeling. Subjects 2-6 weeks of age were perfused with vascular fill; some also received the vital bone label calcein...
December 2016: Anatomical Record: Advances in Integrative Anatomy and Evolutionary Biology
https://www.readbyqxmd.com/read/27866763/direct-and-indirect-photodegradation-pathways-of-cytostatic-drugs-under-uv-germicidal-irradiation-process-kinetics-and-influences-of-water-matrix-species-and-oxidant-dosing
#10
Yiqing Zhang, Jiefeng Zhang, Yongjun Xiao, Victor W C Chang, Teik-Thye Lim
The ever-increasing consumption of various cytostatic drugs (CSDs) has attracted growing public concern in recent years. The photodegradation of 8 CSDs was investigated using a low-pressure UV-254Hg lamp, resulting in fluence-based first-order kinetic rate constants in the range of (0.20-6.97)×10(-4)cm(2)mJ(-1). The influence of water matrix components, including natural dissolved organic matter (DOM), bicarbonate (HCO3(-)), nitrate (NO3(-)), chloride (Cl(-)), and sulfate (SO4(2-)), was investigated. The degradation rates of CSDs decrease in the presence of DOM due to the competition for the UV light, but increase with addition of NO3(-) due to an indirect production of HO...
November 8, 2016: Journal of Hazardous Materials
https://www.readbyqxmd.com/read/27865433/influences-of-size-fractionated-humic-acids-on-arsenite-and-arsenate-complexation-and-toxicity-to-daphnia-magna
#11
Jinqian Ren, Wenhong Fan, Xiangrui Wang, Qingquan Ma, Xiaomin Li, Zhizhen Xu, Chaoyang Wei
The intrinsic physicochemical properties of dissolved organic matter (DOM) may affect the mobility and toxicity of arsenic in aquatic environments. In the present study, the humic acid (HA) was ultra-filtered into five fractions according to molecular weight, and their physicochemical properties were characterized. Complexation of HA fractions with arsenite and arsenate was first determined by differential pulse polarography (DPP). The influences of HA fractions on arsenic toxicity were then examined using Daphnia magna as a model organism...
January 1, 2017: Water Research
https://www.readbyqxmd.com/read/27865212/changes-in-the-oral-health-of-the-children-of-dili-timor-leste-between-2002-and-2014
#12
Lucio F Babo Soares, Penny L Allen, Jenna Kingi, Kaye Roberts-Thomson, Silvana Bettiol, Leonard Crocombe
INTRODUCTION: This research compared the oral health status of school children in Dili (the capital of Timor Leste) in 2002 and 2014. METHODS: The 2014 oral health survey of Dili's children replicated the methods of an AusAID-supported oral health survey conducted in 2002. Equal numbers of children were invited to participate from four age groups (6-8, 9-11, 12-14 and 15-17 years). For the 2014 survey, the subdistricts of Dom Aleixo, Cristo Rei, Metinaro and Vera Cruz were randomly selected for inclusion...
October 2016: Rural and Remote Health
https://www.readbyqxmd.com/read/27859609/quantifying-the-effects-of-photoreactive-dissolved-organic-matter-on-methylmercury-photodemethylation-rates-in-freshwaters
#13
Sara J Klapstein, Susan E Ziegler, David A Risk, Nelson J O'Driscoll
The present study examined potential effects of seasonal variations in photoreactive dissolved organic matter (DOM) on methylmercury (MeHg) photodemethylation rates in freshwaters. A series of controlled experiments were carried out using natural and photochemically preconditioned DOM in water collected from one lake in June, August, and October. Natural DOM concentrations doubled between June and August (DOC = 10.2-21.2 mg C L(-1) ) and then remained stable into October (DOC = 19.4 mg C L(-1) )...
November 17, 2016: Environmental Toxicology and Chemistry
https://www.readbyqxmd.com/read/27856050/effects-of-dissolved-organic-matter-derived-from-forest-leaf-litter-on-biodegradation-of-phenanthrene-in-aqueous-phase
#14
Dan Cai, Xiuhong Yang, Shizhong Wang, Yuanqing Chao, J L Morel, Rongliang Qiu
Dissolved organic matter (DOM) released from forest leaf litter is potentially effective for the degradation of polycyclic aromatic hydrocarbons (PAHs), yet the inherent mechanism remains insufficiently elucidated. In this study, we investigated the effects of DOM derived from Pinus elliottii and Schima superba leaf litter on the degradation of phenanthrene by the phenanthrene degrading bacterium Sphingobium sp. Phe-1. DOM from different origins and at a large range of concentrations enhanced the degradation rate of phenanthrene...
November 9, 2016: Journal of Hazardous Materials
https://www.readbyqxmd.com/read/27854268/deoxynivalenol-and-its-modified-forms-are-there-major-differences
#15
Arash Alizadeh, Saskia Braber, Peyman Akbari, Aletta Kraneveld, Johan Garssen, Johanna Fink-Gremmels
Considering the diverse toxic effects of the Fusarium toxin deoxynivalenol (DON), its common occurrence in wheat-based products, and its stability during processing, DON constitutes an increasing health concern for humans and animals. In addition to the parent compound DON, human and animal exposure encompasses the acetylated fungal metabolites 3-acetyl-deoxynivalenol (3ADON) and 15-acetyl-deoxynivalenol (15ADON) as well as the plant-derived DON-glucoside (DON3G) and the bacterial product de-epoxy-DON (DOM-1)...
November 16, 2016: Toxins
https://www.readbyqxmd.com/read/27845853/delayed-onset-muscle-soreness-temporal-assessment-with-quantitative-mri-and-shear-wave-ultrasound-elastography
#16
Christoph A Agten, Florian M Buck, Linda Dyer, Martin Flück, Christian W A Pfirrmann, Andrea B Rosskopf
OBJECTIVE: The objective of our study was to assess delayed-onset muscle soreness (DOMS) over time using quantitative MRI and shear-wave ultrasound (US) elastography. SUBJECTS AND METHODS: Five male (mean age ± SD, 39.6 ± 4.6 years) and five female (30.6 ± 13.5 years) volunteers underwent 1.5-T MRI before and after (15 minutes, 1 day, 3 days, 7 days) performing unilateral eccentric resistance exercise of the elbow flexor muscles. The MRI examinations included fluid-sensitive, DWI, and diffusion-tensor imaging sequences of the distal upper arm...
November 15, 2016: AJR. American Journal of Roentgenology
https://www.readbyqxmd.com/read/27836473/photochemical-reactions-between-mercury-hg-and-dissolved-organic-matter-decrease-hg-bioavailability-and-methylation
#17
Hong-Wei Luo, Xiangping Yin, Aaron M Jubb, Hongmei Chen, Xia Lu, Weihua Zhang, Hui Lin, Han-Qing Yu, Liyuan Liang, Guo-Ping Sheng, Baohua Gu
Atmospheric deposition of mercury (Hg) to surface water is one of the dominant sources of Hg in aquatic environments and ultimately drives methylmercury (MeHg) toxin accumulation in fish. It is known that freshly deposited Hg is more readily methylated by microorganisms than aged or preexisting Hg; however the underlying mechanism of this process is unclear. We report that Hg bioavailability is decreased by photochemical reactions between Hg and dissolved organic matter (DOM) in water. Photo-irradiation of Hg-DOM complexes results in loss of Sn(II)-reducible (i...
January 2017: Environmental Pollution
https://www.readbyqxmd.com/read/27836172/chemical-oxidation-for-mitigation-of-uv-quenching-substances-uvqs-from-municipal-landfill-leachate-fenton-process-versus-ozonation
#18
Chanil Jung, Yang Deng, Renzun Zhao, Kevin Torrens
UV-quenching substance (UVQS), as an emerging municipal solid waste (MSW)-derived leachate contaminant, has a potential to interfere with UV disinfection when leachate is disposed of at publicly owned treatment works (POTWs). The objective of this study was to evaluate and compare two chemical oxidation processes under different operational conditions, i.e. Fenton process and ozonation, for alleviation of UV254 absorbance of a biologically pre-treated landfill leachate. Results showed that leachate UV254 absorbance was reduced due to the UVQS decomposition by hydroxyl radicals (·OH) during Fenton treatment, or by ozone (O3) and ·OH during ozonation...
January 1, 2017: Water Research
https://www.readbyqxmd.com/read/27825287/insight-into-the-adsorption-mechanisms-of-trace-organic-carbon-on-biological-treatment-process
#19
Mehdi Zolfaghari, Patrick Drogui, Satinder Kaur Brar, Gerardo Buelna, Rino Dubé
Presence of recalcitrant dissolved organic matter (DOM) could have a significant effect on the adsorption mechanism and capacity of the sludge for many trace organic carbons (TrOCs), especially for the hydrophobic and/or positively charged compounds. In this study, adsorption of three TrOCs on the sludge and humic acid was investigated. The results revealed that neutral hydrophilic compounds had an insignificant interaction with both sludge and humic acid. Positively charged compounds like Fluoranthene, had more affinity toward humic acid than sludge with solid/liquid partitioning of 57, and 3...
November 8, 2016: Environmental Technology
https://www.readbyqxmd.com/read/27823862/seasonal-variation-in-the-nature-of-dom-in-a-river-and-drinking-water-reservoir-of-a-closed-catchment
#20
John Awad, John van Leeuwen, Christopher W K Chow, Ronald J Smernik, Sharolyn J Anderson, Jim W Cox
Dissolved organic matter (DOM) in surface waters used for drinking purposes can vary markedly in character depending on its source within catchments and the timing and intensity of rainfall events. Here we report the findings of a study on the character and concentration of DOM in waters collected during different seasons from Myponga River and Reservoir, South Australia. The character of DOM was assessed in terms of its treatability by enhanced coagulation and potential for disinfection by-product i.e. trihalomethane (THM) formation...
January 2017: Environmental Pollution
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