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https://www.readbyqxmd.com/read/28435553/prevalence-and-associated-factors-of-musculoskeletal-disorders-among-young-dentists-in-indonesia
#1
P Phedy, L Gatam
Introduction: Musculoskeletal problems are often work related. Dentists have been reported to have a high prevalence of musculoskeletal problems. Dentists have to perform repetitive tasks, often in awkward and nonergonomic positions in their practice. Materials and Methods: This is a cross-sectional study. Five-hundred copies of Nordic Musculoskeletal Questionnaire were distributed to dentists who participated in a congress of a regional branch of the Indonesian Dentist Association. Data such as sex, length of practice, the presence of assistance, smoking, occupational stress, body mass index, hand dominance, and exercise were collected...
July 2016: Malaysian Orthopaedic Journal
https://www.readbyqxmd.com/read/28395343/the-generation-rate-of-respirable-dust-from-cutting-fiber-cement-siding-using-different-tools
#2
Chaolong Qi, Alan Echt, Michael G Gressel
This article describes the evaluation of the generation rate of respirable dust (GAPS, defined as the mass of respirable dust generated per unit linear length cut) from cutting fiber cement siding using different tools in a laboratory testing system. We used an aerodynamic particle sizer spectrometer (APS) to continuously monitor the real-time size distributions of the dust throughout cutting tests when using a variety of tools, and calculated the generation rate of respirable dust for each testing condition using the size distribution data...
March 1, 2017: Annals of Work Exposures and Health
https://www.readbyqxmd.com/read/28391999/trends-in-management-of-the-small-renal-mass-in-renal-transplant-recipient-candidates-a-multi-institutional-survey-analysis
#3
Alp Tuna Beksac, David J Paulucci, John P Sfakianos, Balaji N Reddy, Greg E Gin, Susan M Lerner, Ketan K Badani
INTRODUCTION: Patients with end-stage renal disease are under increased risk for renal cell carcinoma development, and radical nephrectomy is the preferred treatment in this setting. Owing to the increased surgical morbidity and mortality, active surveillance (AS) may be a valid option for treatment of small renal masses (SRM). As there is a lack of high-level evidence for treatment recommendations, we performed a survey analysis to analyze the treatment patterns of transplant surgeons...
April 5, 2017: Urologic Oncology
https://www.readbyqxmd.com/read/28374728/-characteristic-of-the-normal-values-of-the-pain-threshold-values-in-the-dorsal-region-of-the-young-women-obtained-by-the-pressure-algometry-method-under-different-condition
#4
P V Kondrashkin, D Z Shibkova, E I Tolstykh
The application of modern techniques for different types of massage and manual therapy is associated with the exposure of the paravetrebral points. The knowledge of pain threshold values at these points is of great practical significance. AIM: The objective of the present study was to obtain the statistical characteristics of the individual pressure pain threshold (PPT) for the healthy women and patients presenting with minor disturbances of spinal motion segments (SMS) at the trigger points on the back...
2017: Voprosy Kurortologii, Fizioterapii, i Lechebnoĭ Fizicheskoĭ Kultury
https://www.readbyqxmd.com/read/28365763/the-effect-of-nest-box-distribution-on-sustainable-propagation-of-osmia-lignaria-hymenoptera-megachilidae-in-commercial-tart-cherry-orchards
#5
N K Boyle, T L Pitts-Singer
The blue orchard bee, Osmia lignaria (Say), is a solitary bee that is an excellent pollinator of tree fruit orchards. Due to the annual rising costs of honey bee hive rentals, many orchardists are eager to develop management tools and practices to support O. lignaria as an alternative pollinator. Establishing O. lignaria pollination as a sustainable industry requires careful consideration of both bee and orchard management. Here, we test the effect of artificial nest box distribution on in-orchard propagation of O...
January 1, 2017: Journal of Insect Science
https://www.readbyqxmd.com/read/28361600/application-of-drifts-13-c-nmr-and-py-mbms-to-characterize-the-effects-of-soil-science-oxidation-assays-on-soil-organic-matter-composition-in-a-mollic-xerofluvent
#6
Andrew J Margenot, Francisco J Calderón, Kimberly A Magrini, Robert J Evans
Chemical oxidations are routinely employed in soil science to study soil organic matter (SOM), and their interpretation could be improved by characterizing oxidation effects on SOM composition with spectroscopy. We investigated the effects of routinely employed oxidants on SOM composition in a Mollic Xerofluvent representative of intensively managed agricultural soils in the California Central Valley. Soil samples were subjected to oxidation by potassium permanganate (KMnO4), sodium hypochlorite (NaOCl), and hydrogen peroxide (H2O2)...
January 1, 2017: Applied Spectroscopy
https://www.readbyqxmd.com/read/28343882/a-contemporary-description-of-french-newborns-growth-using-the-efemeris-cohort
#7
A-B Beau, M Tauber, C Chollet, C Hurault-Delarue, C Bouilhac, J-L Montastruc, I Lacroix, C Damase-Michel
BACKGROUND: Overweight and obesity in childhood are a major concern in developed countries. Reference growth curves are used in current practice to identify children at risk, especially at risk of overweight or obesity. National reference growth curves were published 35 years ago from children born in the 1950s to study growth from birth to adulthood. Additionally, more recent national curves exist to study birth weight and height according to gestational age. The primary objective was to describe anthropometric measurements of French children born in the 2000s and to compare them with the French references...
May 2017: Archives de Pédiatrie: Organe Officiel de la Sociéte Française de Pédiatrie
https://www.readbyqxmd.com/read/28339461/mass-elevation-and-lee-effects-markedly-lift-the-elevational-distribution-of-ground-beetles-in-the-himalaya-tibet-orogen
#8
Joachim Schmidt, Jürgen Böhner, Roland Brandl, Lars Opgenoorth
Mass elevation and lee effects markedly influence snow lines and tree lines in high mountain systems. However, their impact on other phenomena or groups of organisms has not yet been quantified. Here we quantitatively studied their influence in the Himalaya-Tibet orogen on the distribution of ground beetles as model organisms, specifically whether the ground beetle distribution increases from the outer to the inner parts of the orogen, against latitudinal effects. We also tested whether July temperature and solar radiation are predictors of the beetle's elevational distribution ranges...
2017: PloS One
https://www.readbyqxmd.com/read/28336137/an-ultra-sensitive-method-for-the-analysis-of-perfluorinated-alkyl-acids-in-drinking-water-using-a-column-switching-high-performance-liquid-chromatography-tandem-mass-spectrometry
#9
Kavitha Dasu, Shoji F Nakayama, Mitsuha Yoshikane, Marc A Mills, J Michael Wright, Shelley Ehrlich
In epidemiological research, it has become increasingly important to assess subjects' exposure to different classes of chemicals in multiple environmental media. It is a common practice to aliquot limited volumes of samples into smaller quantities for specific trace level chemical analyses. A novel method was developed for the determination of 14 perfluorinated alkyl acids (PFAAs) in small volumes (10mL) of drinking water using off-line solid phase extraction (SPE) pre-treatment followed by on-line pre-concentration on a WAX column before analysis on column-switching high performance liquid chromatography tandem mass spectrometry (HPLC-MS/MS)...
March 6, 2017: Journal of Chromatography. A
https://www.readbyqxmd.com/read/28325973/building-a-database-for-long-term-monitoring-of-benthic-macrofauna-in-the-pertuis-charentais-2004-2014
#10
Anne S Philippe, Christine Plumejeaud-Perreau, Jérôme Jourde, Philippe Pineau, Nicolas Lachaussée, Emmanuel Joyeux, Frédéric Corre, Philippe Delaporte, Pierrick Bocher
BACKGROUND: Long-term benthic monitoring is rewarding in terms of science, but labour-intensive, whether in the field, the laboratory, or behind the computer. Building and managing databases require multiple skills, including consistency over time as well as organisation via a systematic approach. Here, we introduce and share our spatially explicit benthic database, comprising 11 years of benthic data. It is the result of intensive benthic sampling that has been conducted on a regular grid (259 stations) covering the intertidal mudflats of the Pertuis-Charentais (Marennes-Oléron Bay and Aiguillon Bay)...
2017: Biodiversity Data Journal
https://www.readbyqxmd.com/read/28317167/semiparametric-methods-for-estimation-of-a-nonlinear-exposure-outcome-relationship-using-instrumental-variables-with-application-to-mendelian-randomization
#11
James R Staley, Stephen Burgess
Mendelian randomization, the use of genetic variants as instrumental variables (IV), can test for and estimate the causal effect of an exposure on an outcome. Most IV methods assume that the function relating the exposure to the expected value of the outcome (the exposure-outcome relationship) is linear. However, in practice, this assumption may not hold. Indeed, often the primary question of interest is to assess the shape of this relationship. We present two novel IV methods for investigating the shape of the exposure-outcome relationship: a fractional polynomial method and a piecewise linear method...
May 2017: Genetic Epidemiology
https://www.readbyqxmd.com/read/28257477/wealth-household-heterogeneity-and-livelihood-diversification-of-fulani-pastoralists-in-the-kachia-grazing-reserve-northern-nigeria-during-a-period-of-social-transition
#12
Marie J Ducrotoy, Crawford W Revie, Alexandra P M Shaw, Usman B Musa, Wilson J Bertu, Amahyel M Gusi, Reuben A Ocholi, Ayodele O Majekodunmi, Susan C Welburn
BACKGROUND: A mixed methods study was undertaken in the Kachia Grazing Reserve of northern Nigeria. Surveys in March, June and October 2011 included focus group discussions, key informant and in-depth household interviews, concerning livelihood practices, animal health, ownership, and productivity. In May 2011, 249 Fulani families fleeing post-election violence entered the reserve with their livestock, increasing the number of households by one third. RESULTS: Despite being settled within a grazing reserve, over half of households sent all their cattle away on seasonal transhumance and another third sent some away...
2017: PloS One
https://www.readbyqxmd.com/read/28236459/k-targeted-strategy-for-isolation-of-phenolic-alkaloids-of-nelumbo-nucifera-gaertn-by-counter-current-chromatography-using-lysine-as-a-ph-regulator
#13
Yanyan Wang, Lihong Zhang, Hui Zhou, Xiuyun Guo, Shihua Wu
Counter-current chromatography (CCC) is an efficient liquid-liquid partition chromatography technique without support matrix. Despite there are many significant advancements in the CCC separation of natural products especially for non-ionic neutral compounds, CCC isolation of ionic compounds including alkaloids is still a challenging process guide by classical partition coefficients (K) or distribution ratio (KC) because their partition coefficient could not be equal to distribution ratio in common ionic conditions...
March 24, 2017: Journal of Chromatography. A
https://www.readbyqxmd.com/read/28208116/factors-determining-left-main-coronary-artery-luminal-area
#14
Konstantinos Dean Boudoulas, Peter M Bittenbender, Haikady N Nagaraja, Omar Kahaly, Jennifer A Dickerson, Subha V Raman, Ernest L Mazzaferri, Charles A Bush
BACKGROUND: A certain minimal luminal cross-sectional area has been traditionally used in clinical practice as a cut-off value to determine severity of left main coronary artery (LMCA) stenosis. The severity of stenosis, however, depends on the baseline luminal area (ie, area prior to stenosis), which may vary among individuals. The present study was undertaken to define normal LMCA luminal area using current technology in vivo. METHODS: LMCA luminal area was determined using multislice computed tomography coronary angiography...
February 15, 2017: Journal of Invasive Cardiology
https://www.readbyqxmd.com/read/28205246/pharmacokinetics-of-valnemulin-after-intravenous-intramuscular-and-oral-administration-in-layer-chickens
#15
F Sun, R Fan, J Wang, L Xiong, J Shen, S Zhang, X Cao
The pharmacokinetic characteristics of valnemulin in layer chickens were studied after single intravenous, intramuscular, and oral administration at a dose of 15 mg/kg body weight. Plasma samples at certain time points were collected and the drug concentrations in them by ultra high-performance liquid chromatography tandem mass spectrometry (UHPLC-MS). The concentration-time data for each individual were plotted by noncompartmental analysis for the whole three routes. Following intravenous administration, the plasma concentration showed tiny fluctuation...
February 15, 2017: Journal of Veterinary Pharmacology and Therapeutics
https://www.readbyqxmd.com/read/28199877/characterising-stormwater-gross-pollutants-captured-in-catch-basin-inserts
#16
Md Zahanggir Alam, A H M Faisal Anwar, Dipok Chandra Sarker, Anna Heitz, Craig Rothleitner
The accumulation of wash-off solid waste, termed gross pollutants (GPs), in drainage systems has become a major constraint for best management practices (BMPs) of stormwater. GPs should be captured at source before the material clogs the drainage network, seals the infiltration capacity of side entry pits or affects the aquatic life in receiving waters. BMPs intended to reduce stormwater pollutants include oil and grit separators, grassed swales, vegetated filter strips, retention ponds, and catch basin inserts (CBIs) are used to remove GP at the source and have no extra land use requirement because they are typically mounted within a catch basin (e...
May 15, 2017: Science of the Total Environment
https://www.readbyqxmd.com/read/28198615/antibacterial-activities-of-graphene-oxide-molybdenum-disulfide-nanocomposite-films
#17
Tae In Kim, Buki Kwon, Jonghee Yoon, Ick-Joon Park, Gyeong Sook Bang, YongKeun Park, Yeon-Soo Seo, Sung-Yool Choi
Two-dimensional (2D) nanomaterials, such as graphene-based materials and transition metal dichalcogenide (TMD) nanosheets, are promising materials for biomedical applications owing to their remarkable cytocompatibility and physicochemical properties. On the basis of their potent antibacterial properties, 2D materials have potential as antibacterial films, wherein the 2D nanosheets are immobilized on the surface and the bacteria may contact with the basal planes of 2D nanosheets dominantly rather than contact with the sharp edges of nanosheets...
February 27, 2017: ACS Applied Materials & Interfaces
https://www.readbyqxmd.com/read/28164430/assessment-of-intradialysis-calcium-mass-balance-by-single-pool-variable-volume-calcium-kinetic-model
#18
Salvatore di Filippo, Fabio Carfagna, Vincenzo la Milia, Antonio Bellasi, Giustina Casagrande, Camilla Bianchi, Domenico Vito, Maria Laura Costantino, Giuseppe Rombolà, Claudio Minoretti, Carlo Schönholzer, Giuseppe Pontoriero, Francesco Locatelli
INTRODUCTION: A reliable method of intradialysis calcium mass balance quantification is far from been established. We herein investigated the use of a single-pool variable-volume Calcium kinetic model to assess calcium mass balance in chronic and stable dialysis patients. METHODS: Thirty-four patients on thrice-weekly HD were studied during 240 dialysis sessions. All patients were dialyzed with a nominal total calcium concentration of 1.50 mmol/L. The main assumption of the model is that the calcium distribution volume is equal to the extracellular volume during dialysis...
February 5, 2017: Hemodialysis International
https://www.readbyqxmd.com/read/28155137/successful-use-of-14-c-paracetamol-microdosing-to-elucidate-developmental-changes-in-drug-metabolism
#19
Miriam G Mooij, Esther van Duijn, Catherijne A J Knibbe, Karel Allegaert, Albert D Windhorst, Joost van Rosmalen, N Harry Hendrikse, Dick Tibboel, Wouter H J Vaes, Saskia N de Wildt
BACKGROUND: We previously showed the practical and ethical feasibility of using [(14)C]-microdosing for pharmacokinetic studies in children. We now aimed to show that this approach can be used to elucidate developmental changes in drug metabolism, more specifically, glucuronidation and sulfation, using [(14)C]paracetamol (AAP). METHODS: Infants admitted to the intensive care unit received a single oral [(14)C]AAP microdose while receiving intravenous therapeutic AAP every 6 h...
February 2, 2017: Clinical Pharmacokinetics
https://www.readbyqxmd.com/read/28145118/use-of-winemaking-supplements-to-modify-the-composition-and-sensory-properties-of-shiraz-wine
#20
Sijing Li, Keren A Bindon, Susan Elaine Putnam Bastian, Vladimir Jiranek, Kerry L Wilkinson
Wine quality can be significantly impacted by tannin and polysaccharide composition, which can in turn be influenced by grape maturity and winemaking practices. This study explored the impact of three commercial wine additives, a maceration enzyme, an oenotannin and a mannoprotein, on the composition and sensory properties of red wine; in particular, in mimicking the mouthfeel associated with wines made from riper grapes. Shiraz grapes were harvested at 24 °Brix and 28 °Brix and the former vinified with commercial additives introduced either individually or in combination...
February 1, 2017: Journal of Agricultural and Food Chemistry
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