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https://www.readbyqxmd.com/read/28531123/evaluation-of-drinking-water-disinfectant-byproducts-compliance-data-as-an-indirect-measure-for-short-term-exposure-in-humans
#1
Shahid Parvez, Kali Frost, Madhura Sundararajan
In the absence of shorter term disinfectant byproducts (DBPs) data on regulated Trihalomethanes (THMs) and Haloacetic acids (HAAs), epidemiologists and risk assessors have used long-term annual compliance (LRAA) or quarterly (QA) data to evaluate the association between DBP exposure and adverse birth outcomes, which resulted in inconclusive findings. Therefore, we evaluated the reliability of using long-term LRAA and QA data as an indirect measure for short-term exposure. Short-term residential tap water samples were collected in peak DBP months (May-August) in a community water system with five separate treatment stations and were sourced from surface or groundwater...
May 20, 2017: International Journal of Environmental Research and Public Health
https://www.readbyqxmd.com/read/28530505/ingestion-of-sodium-bicarbonate-nahco3-following-a-fatiguing-bout-of-exercise-accelerates-post-exercise-acid-base-balance-recovery-and-improves-subsequent-high-intensity-cycling-time-to-exhaustion
#2
Lewis A Gough, Steven Rimmer, Callum J Osler, Matthew F Higgins
This study evaluated the ingestion of sodium bicarbonate (NaHCO3) on post-exercise acid-base balance recovery kinetics and subsequent high-intensity cycling time to exhaustion. In a counterbalanced, crossover design, nine healthy and active males (age: 23±2 years, height: 179±5 cm, body mass: 74±9 kg, peak mean minute power (WPEAK) 256±45 W, peak oxygen uptake (V̇O2PEAK) 46±8 ml.kg(-1).min(-1)) performed a graded incremental exercise test, two familiarisation and two experimental trials. Experimental trials consisted of cycling to volitional exhaustion (TLIM1) at 100% WPEAK on two occasions (TLIM1 and TLIM2) interspersed by a 90 min passive recovery period...
May 22, 2017: International Journal of Sport Nutrition and Exercise Metabolism
https://www.readbyqxmd.com/read/28530326/-serum-thyroglobulin-levels-and-estimated-iodine-intake-in-adults-exposed-to-iodine%C3%A2-diluted-desalinated-drinking-water
#3
Dov Gefel, Svetlana Turkot, Dorit Aharoni, Shlomo Fytlovich, Yaniv S Ovadia
AIMS: The aim of this study was to describe thyroglobulin levels and iodine intake estimations in a convenience sample of Israeli adults without TD in the Ashkelon District, where SWRO desalination has become the major source of drinking water. BACKGROUND: Iodine deficiency (ID) is a significant risk factor for thyroid disease (TD). Recently, there were increases in both selfreported use of TD medication among Israeli adults and the national use of sea water reverse osmosis (SWRO) desalinated water...
August 2016: Harefuah
https://www.readbyqxmd.com/read/28529020/nosocomial-legionellosis-and-invasive-aspergillosis-in-a-child-with-t-lymphoblastic-leukemia
#4
Rhoikos Furtwängler, Uwe Schlotthauer, Barbara Gärtner, Norbert Graf, Arne Simon
Invasive aspergillosis of the lungs and the central nervous system and Legionella pneumophilia serotype 1 infection of the lungs were diagnosed in a 22-month old child during inpatient induction treatment for T-lymphoblastic leukemia. Environmental investigations i.e. samples from the hospital water system did not reveal any Legionella. The patient may have been exposed to waterborne pathogens despite terminal water filtration due to a technical device to release residual tap water from the hose after showering...
May 13, 2017: International Journal of Hygiene and Environmental Health
https://www.readbyqxmd.com/read/28528848/temporal-expectancies-driven-by-self-and-externally-generated-rhythms
#5
Alexander Jones, Yi-Fang Hsu, Lionel Granjon, Florian Waszak
The dynamic attending theory proposes that rhythms entrain periodic fluctuations of attention which modulate the gain of sensory input. However, temporal expectancies can also be driven by the mere passage of time (foreperiod effect). It is currently unknown how these two types of temporal expectancy relate to each other, i.e. whether they work in parallel and have distinguishable neural signatures. The current research addresses this issue. Participants either tapped a 1Hz rhythm (active task) or were passively presented with the same rhythm using tactile stimulators (passive task)...
May 18, 2017: NeuroImage
https://www.readbyqxmd.com/read/28528804/an-interactive-videogame-for-arm-and-hand-exercise-in-people-with-parkinson-s-disease-a-randomized-controlled-trial
#6
Natalie E Allen, Jooeun Song, Serene S Paul, Stuart Smith, Jonathan O'Duffy, Matthew Schmidt, Rachelle Love, Catherine Sherrington, Colleen G Canning
INTRODUCTION: People with Parkinson's disease (PD) have difficulty performing upper extremity (UE) activities. The aim of this study was to investigate if exergames targeting the UE improve arm and hand activities and impairments and to establish the acceptability and feasibility of these games in people with PD. METHODS: Two tablet-based exergames were developed which were controlled with finger movements or unimanual whole arm movements. Participants with PD were randomized to an exergame (n = 19) or control (n = 19) group...
May 15, 2017: Parkinsonism & related Disorders
https://www.readbyqxmd.com/read/28528771/comparison-of-residual-napl-source-removal-techniques-in-3d-metric-scale-experiments
#7
O Atteia, F Jousse, G Cohen, P Höhener
This study compared four treatment techniques for the removal of a toluene/n-decane as NAPL (Non Aqueous Phase Liquid) phase mixture in identical 1 cubic meter tanks filled with different kind of sand. These four treatment techniques were: oxidation with persulfate, surfactant washing with Tween80®, sparging with air followed by ozone, and thermal treatment at 80°C. The sources were made with three lenses of 26×26×6.5cm, one having a hydraulic conductivity similar to the whole tank and the two others a value 10 times smaller...
April 21, 2017: Journal of Contaminant Hydrology
https://www.readbyqxmd.com/read/28528536/efficacy-of-ultrasound-guided-transversus-abdominis-plane-block-and-rectus-sheath-block-with-ropivacaine-and-dexmedetomidine-in-elderly-high-risk-patients-undergoing-emergency-abdominal-surgery
#8
Lili Xu, Zhiyong Hu, Jianjun Shen, Patrick M McQuillan
BACKGROUND: This study was designed to evaluate the effectiveness and safety of ultrasound-guided transversus abdominis plane (TAP) and rectus sheath (RS) blocks with ropivacaine and dexmedetomidine in elderly, high-risk patients undergoing emergency abdominal surgery. METHODS: Sixty elderly patients undergoing emergency abdominal surgery receiving both bilateral ultrasound-guided TAP and RS blocks were randomly divided into two groups: R+D (10 ml of 0.25% ropivacaine+0...
May 19, 2017: Minerva Anestesiologica
https://www.readbyqxmd.com/read/28528484/current-contamination-status-of-perfluoroalkyl-substances-in-tapwater-from-17-cities-in-the-eastern-china-and-their-correlations-with-surface-waters
#9
Ke-Yan Tan, Guo-Hui Lu, Hai-Tao Piao, Shu Chen, Xing-Chun Jiao, Nan Gai, Eriko Yamazaki, Nobuyoshi Yamashita, Jing Pan, Yong-Liang Yang
The contamination status of perfluoroalkyl substances (PFASs) were investigated in 64 tapwater samples collected from 17 cities and 45 surface water samples from adjacent areas in the eastern China. The total PFAS concentrations in tapwater ranged from 1.4 to 175 ng/L; relatively higher PFAS levels were observed in samples collected from the Yangtze River Delta region, which was similar to the geographical distribution pattern of PFAS levels observed in rivers and lakes. The highest total PFASs in tapwater was found in Changshu, where several fluorine-related industries are located, whereas the lowest was observed in Beijing...
May 20, 2017: Bulletin of Environmental Contamination and Toxicology
https://www.readbyqxmd.com/read/28528463/facebook-advertising-to-recruit-young-urban-women-into-an-hiv-prevention-clinical-trial
#10
Rachel Jones, Lorraine J Lacroix, Eloni Porcher
Advertising via Facebook to elicit involvement in clinical trials has demonstrated promise in expanding geographic reach while maintaining confidentiality. The purpose of this study is to evaluate Facebook advertising to reach at-risk, predominately African American or Black women in higher HIV prevalence communities for an HIV prevention clinical trial, and to compare baseline characteristics to those recruited on-the-ground. Maintaining confidentiality and the practical aspects of creating and posting ads on Facebook are described...
May 20, 2017: AIDS and Behavior
https://www.readbyqxmd.com/read/28528219/the-ongoing-saga-of-the-mechanism-s-of-mhc-class-i-restricted-cross-presentation
#11
Jeff E Grotzke, Debrup Sengupta, Qiao Lu, Peter Cresswell
Cross-presentation is an MHC-I antigen processing pathway that results in the presentation of peptides from exogenous viral, bacterial, parasitic, and tumor antigens and ultimately leads to priming of naïve CD8(+) T cells. This process involves several cellular compartments and multiple components. Successful generation of MHC-I-peptide complexes requires that these components act together in a coordinated fashion. We discuss recent findings on the source of MHC-I, the role of the TAP transporter, the importance of intracellular trafficking events, mechanisms of antigen access the cytosol, and how innate immune signals can affect presentation, with an emphasis on how these pathways compare to conventional antigen presentation and how they correlate with existing data...
May 18, 2017: Current Opinion in Immunology
https://www.readbyqxmd.com/read/28527618/giving-the-tap-the-elbow-an-observational-study
#12
M Weinbren, L Bree, S Sleigh, M Griffiths
Hand washing is viewed as the most important barrier to cross infection. Incorrect use of clinical hand wash basins may lead to cross infection either from contaminated water or due to failure to decontaminate hands. Elbow operated taps used correctly prevent re-contamination of hands during operation. Observation shows many elbow operated taps are installed incorrectly with the handle flush with the back panel making it difficult to open using the elbow. AIM: To determine the effect of altering the angle of the handle of elbow operated taps on hand washing technique...
May 17, 2017: Journal of Hospital Infection
https://www.readbyqxmd.com/read/28527390/on-filter-direct-amplification-of-legionella-pneumophila-for-rapid-assessment-of-its-abundance-and-viability
#13
Farag A Samhan, Tiffany M Stedtfeld, Hassan Waseem, Maggie R Williams, Robert D Stedtfeld, Syed A Hashsham
Guidelines and regulations to control Legionella pneumophila in cooling water systems of large buildings are evolving due to the increasing number of outbreaks. Rapid, on-site, simple, and sensitive quantification methods that are also able to assess viability may be extremely useful in monitoring and control. Culture-based methods for measuring L. pneumophila may take 4-10 days and qPCR-based methods are also slow, requiring at least a day from sample to result, albeit mainly due to the need for sample transport to a centralized laboratory...
May 13, 2017: Water Research
https://www.readbyqxmd.com/read/28527034/simultaneous-determination-of-selected-hormones-endocrine-disruptor-compounds-and-pesticides-in-water-medium-at-trace-levels-by-gc-ms-after-dispersive-liquid-liquid-microextraction
#14
Dotse Selali Chormey, Çağdaş Büyükpınar, Fatma Turak, Okan Tarık Komesli, Sezgin Bakırdere
The need to enhance food safety has led to major advancements in pesticide productions, and though many benefits have been gained, environmental contamination has also risen from these chemicals that tend to persist in the environment. Some pesticides, together with other chemicals commonly called endocrine disruptor compounds, block the receptor sites of hormones or mimic displaced hormones, leading to imbalanced hormonal levels that result in health disorders and diseases. These chemicals occur at trace levels and are not directly detected by conventional analytical methods...
June 2017: Environmental Monitoring and Assessment
https://www.readbyqxmd.com/read/28526792/environmental-spread-of-ndm-1-producing-multi-drug-resistant-bacteria-in-dhaka-bangladesh
#15
Mohammad Aminul Islam, Moydul Islam, Rashedul Hasan, M Iqbal Hossain, Ashikun Nabi, Mahdia Rahman, Wil H F Goessens, Hubert P Endtz, Alexandria B Boehm, Shah M Faruque
Resistance to carbapenem antibiotics through the production of New Delhi Metallo-β-lactamase-1 (NDM-1) constitutes an emerging challenge in the treatment of bacterial infections. To monitor possible source of spread of these organisms in Dhaka, Bangladesh, we conducted comparative analysis of waste water samples from hospital adjacent areas (HAR) and from community areas (COM) as well as public tap water samples for the occurrence and characteristics of NDM-1 producing bacteria. Of 72 HAR samples tested 51 (71%) were positive for NDM-1-producing bacteria as evidenced by phenotypic tests and the presence of blaNDM-1 gene, compared to 5 of 41 (12...
May 19, 2017: Applied and Environmental Microbiology
https://www.readbyqxmd.com/read/28526621/electrophysiological-signatures-of-phonological-and-semantic-maintenance-in-sentence-repetition
#16
Jed A Meltzer, Aneta Kielar, Lilia Panamsky, Kira A Links, Tiffany Deschamps, Rosie C Leigh
Verbal short-term memory comprises resources for phonological rehearsal, which have been characterized anatomically, and for maintenance of semantic information, which are less understood. Sentence repetition tasks tap both processes interactively. To distinguish brain activity involved in phonological vs. semantic maintenance, we recorded magnetoencephalography during a sentence repetition task, incorporating three manipulations emphasizing one mechanism over the other. Participants heard sentences or word lists and attempted to repeat them verbatim after a 5-second delay...
May 16, 2017: NeuroImage
https://www.readbyqxmd.com/read/28526467/bloqueio-cir%C3%A3%C2%BArgico-do-plano-transverso-abdominal-versus-guiado-por-ultrassom-em-pacientes-obesas-ap%C3%A3-s-ces%C3%A3-rea-estudo-prospectivo-e-randomizado
#17
Aykut Urfalıoğlu, Murat Bakacak, Ömer Faruk Boran, Fatih Mehmet Yazar, Mahmut Arslan, Hafize Öksüz
BACKGROUND AND OBJECTIVES: Ultrasound-guided transversus abdominis plane block demonstrated efficacy in providing post-operative analgesia by prolonging the time to first analgesic requirement and reducing the total analgesic consumption. The surgical transversus abdominis plane block, a novel technique, can be performed safely in obese patients in whom muscle layers cannot be sufficiently exposed. Here, we compared applicability, efficacy and complications of surgical transversus abdominis plane and ultrasound-guided transversus abdominis plane blocks in obese pregnant women following cesarean section under general anesthesia...
May 16, 2017: Revista Brasileira de Anestesiologia
https://www.readbyqxmd.com/read/28525992/water-and-beverage-consumption-patterns-among-4-to-13-year-old-children-in-the-united-kingdom
#18
Florent Vieux, Matthieu Maillot, Florence Constant, Adam Drewnowski
BACKGROUND: The UK government has announced a tax on sugar-sweetened beverages. The aim of this study was to assess consumption patterns for plain drinking water relative to sugary beverages among UK children. METHODS: Dietary intake data for 845 children aged 4-13 years came from the nationally representative cross-sectional National Diet and Nutrition Survey, 2008-2011. Beverage categories were drinking water (tap or bottled), milk, 100% fruit juices, soda, fruit drinks, tea, coffee, sports drinks, flavored waters, and liquid supplements...
May 19, 2017: BMC Public Health
https://www.readbyqxmd.com/read/28524071/flexible-low-cost-sensor-based-on-electrolyte-gated-carbon-nanotube-field-effect-transistor-for-organo-phosphate-detection
#19
Vijay Deep Bhatt, Saumya Joshi, Markus Becherer, Paolo Lugli
A flexible enzymatic acetylcholinesterase biosensor based on an electrolyte-gated carbon nanotube field effect transistor is demonstrated. The enzyme immobilization is done on a planar gold gate electrode using 3-mercapto propionic acid as the linker molecule. The sensor showed good sensing capability as a sensor for the neurotransmitter acetylcholine, with a sensitivity of 5.7 μA/decade, and demonstrated excellent specificity when tested against interfering analytes present in the body. As the flexible sensor is supposed to suffer mechanical deformations, the endurance of the sensor was measured by putting it under extensive mechanical stress...
May 18, 2017: Sensors
https://www.readbyqxmd.com/read/28522248/adverse-effects-in-kidney-function-antioxidant-systems-and-histopathology-in-rats-receiving-monosodium-glutamate-diet
#20
María Del Carmen Contini, Ana Fabro, Néstor Millen, Adriana Benmelej, Stella Mahieu
We investigated the effects of adding of monosodium glutamate (MSG) to a standard diet on oxidative stress in kidney, nitric oxide excretion, renal ions handling and blood pressure. We examined the association of these changes with the effects on renal histology. The study was performed on male Wistar rats (5 weeks old) divided into 3 groups: 1) MSG group were fed a diet supplemented with 3g of MSG/kg b.w./day, five days a week, and spontaneous ingestion of a 1% MSG solution during 16 weeks; 2) NaCl group were fed a diet with NaCl (1g/kg b...
May 15, 2017: Experimental and Toxicologic Pathology: Official Journal of the Gesellschaft Für Toxikologische Pathologie
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