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https://www.readbyqxmd.com/read/29341858/respiratory-assessment-of-refractory-ceramic-fibers-in-a-heating-technician-population
#1
David Lucas, Vincent Clamagirand, Pascale Capellmann, Agnès Hervé, Gilles Mauguen, Yannik Le Mer, Dominique Jegaden
Refractory ceramic fibers (RCF) have been extensively used for insulation in condensing boilers. The aim of this study was to evaluate the respiratory exposure to these fibers among maintenance heating technicians. We first created a working group (Carsat Brittany and Finistère Occupational Health Services) and carried out a sampling strategy. Atmospheric measurements were done during work tasks, and filters were analyzed by phase contrast microscopy (PCM) and scanning electron microscopy (SEM) in French approved laboratories...
January 17, 2018: Journal of Occupational and Environmental Hygiene
https://www.readbyqxmd.com/read/29315669/guillain-barr%C3%A3-syndrome-subtype-diagnosis-a-prospective-multicentric-european-study
#2
Peter Y K Van den Bergh, Françoise Piéret, John L Woodard, Shahram Attarian, Aude-Marie Grapperon, Guillaume Nicolas, Marion Brisset, Julien Cassereau, Yusuf A Rajabally, Vinciane Van Parijs, Donatienne Verougstraete, Philippe Jacquerye, Jean-Marc Raymackers, Céline Redant, Claure Michel, Emilien Delmont
INTRODUCTION: There is uncertainty as to whether the Guillain-Barré syndrome (GBS) subtypes, acute inflammatory demyelinating polyradiculoneuropathy (AIDP) and acute motor axonal neuropathy (AMAN), can be diagnosed electrophysiologically. METHODS: We prospectively included 58 GBS patients. Electrophysiology was performed at means of 5 and 33 days after disease onset. Two traditional and one recent criteria sets were used to classify studies as demyelinating or axonal...
January 5, 2018: Muscle & Nerve
https://www.readbyqxmd.com/read/29249067/detection-of-angiographically-significant-coronary-obstruction-using-resting-transthoracic-coronary-doppler-echocardiography
#3
Alberto Cozzarin, Gerardo Manuel Marambio, Daniel Ernesto Ferreiro, Maria Fernanda Gonda, Lorena Romina Balletti, Martin Hernán Medawar, Juan Alberto Gagliardi, Tomás Francisco Cianciulli
BACKGROUND: Transesophageal Doppler echocardiography has shown that significant stenosis can be detected based on the presence of aliasing with color Doppler in the stenotic area. The study aimed to assess the detection of angiographically significant coronary stenosis (ASCS) by analyzing the characteristics and velocities of resting coronary artery flow (RCF) using transthoracic coronary Doppler echocardiography (TCDE). METHODS: TCDE was performed before diagnostic coronary angiography (CA)...
December 16, 2017: Journal of Echocardiography
https://www.readbyqxmd.com/read/29198225/a-pilot-study-exploring-staff-acceptability-of-a-socially-assistive-robot-in-a-residential-care-facility-that-accommodates-people-under-65-years-old
#4
Samantha M Loi, Alice Bennett, Marta Pearce, Khanh Nguyen, Nicola T Lautenschlager, Rajiv Khosla, Dennis Velakoulis
Socially assistive robots have successfully been trialed in residential care facilities (RCFs) for older adults. These robots may have potential for younger adults (i.e. under 65 years old) who also live in RCFs. However, it is important to investigate staff acceptability and ease-of-use of these robots. This pilot study used the Technology Acceptance Model to investigate how staff working in a specialized RCF for younger adults accept Betty, a socially assistive robot who was introduced in the facility for 12 weeks...
December 4, 2017: International Psychogeriatrics
https://www.readbyqxmd.com/read/29185815/2016-annual-report-of-the-american-association-of-poison-control-centers-national-poison-data-system-npds-34th-annual-report
#5
David D Gummin, James B Mowry, Daniel A Spyker, Daniel E Brooks, Michael O Fraser, William Banner
INTRODUCTION: This is the 34th Annual Report of the American Association of Poison Control Centers' (AAPCC) National Poison Data System (NPDS). As of 1 January 2016, 55 of the nation's poison centers (PCs) uploaded case data automatically to NPDS. The upload interval was 9.50 [7.33, 14.6] (median [25%, 75%]) min, facilitating a near real-time national exposure and information database and surveillance system. METHODS: We analyzed the case data tabulating specific indices from NPDS...
December 2017: Clinical Toxicology
https://www.readbyqxmd.com/read/29146510/relative-contributions-of-the-midcarpal-and-radiocarpal-joints-to-dart-thrower-s-motion-at-the-wrist
#6
Patrick M Kane, Bryan G Vopat, P Kaveh Mansuripur, Michael P Gaspar, Scott W Wolfe, Joseph J Crisco, Christopher Got
PURPOSE: To identify the relative contributions of the radiocarpal (RC) and midcarpal (MC) joints to dart-thrower's motion (DTM) of the wrist. METHODS: Six cadaveric upper extremities were fixed to a custom-designed loading jig allowing for pure moment-rotation analysis in 24 different directions of wrist motion. Each specimen was tested in 3 states: intact, simulated radiocarpal fusion (sRCF) and simulated pancarpal fusion (sPCF). Moments of ± 1.5 Nm were applied at each of 24 directions for each state and the resulting wrist rotation recorded...
November 14, 2017: Journal of Hand Surgery
https://www.readbyqxmd.com/read/29124996/a-30-year-mortality-and-respiratory-morbidity-study-of-refractory-ceramic-fiber-workers
#7
Grace LeMasters, James E Lockey, Timothy J Hilbert, Linda S Levin, Jeff W Burkle, Ralph Shipley, Charles Perme, Cristopher A Meyer, Carol H Rice
AIM: Report mortality (n = 1119), cancer incidence (n = 1207) and radiographic (n = 1451) findings from a 30-year investigation of current and former refractory ceramic fiber (RCF) workers. METHODS: Cause of death, health and work histories, radiographs and spirometry were collected. Mortality and cancer incidence were analyzed. Logistic regression analysis investigated the associations of latency and cumulative fiber exposure (CFE) on radiographic changes...
August 2017: Inhalation Toxicology
https://www.readbyqxmd.com/read/29091588/the-incidence-of-the-different-sources-of-noise-on-the-uncertainty-in-radiochromic-film-dosimetry-using-single-channel-and-multichannel-methods
#8
Antonio González-López, Juan Antonio Vera-Sánchez, Carmen Ruiz-Morales
The influence of the various sources of noise on the uncertainty in radiochromic film (RCF) dosimetry using single channel and multichannel methods is investigated in this work. These sources of noise are extracted from pixel value (PV) readings and dose maps. Pieces of an RCF were each irradiated to different uniform doses, ranging from 0 to 1092 cGy. Then, the pieces were read at two resolutions (72 and 150 ppp) with two flatbed scanners: Epson 10000XL and Epson V800, representing two states of technology...
November 1, 2017: Physics in Medicine and Biology
https://www.readbyqxmd.com/read/29083435/dairy-intakes-in-older-irish-adults-and-effects-on-vitamin-micronutrient-status-data-from-the-tuda-study
#9
E Laird, M C Casey, M Ward, L Hoey, C F Hughes, K McCarroll, C Cunningham, J J Strain, H McNulty, A M Molloy
BACKGROUND: Consumption of dairy products has been associated with positive health outcomes including a lower risk of hypertension, improved bone health and a reduction in the risk of type 2 diabetes. The suggested dairy intake for health in older adults is three servings per day but recent analysis of the NHANES data for older adults reported 98% were not meeting these recommendations. No studies have investigated the consequences of such declines in the dairy intakes of Irish older adults and the subsequent effects on vitamin micronutrient status...
2017: Journal of Nutrition, Health & Aging
https://www.readbyqxmd.com/read/29082694/-simultaneous-determination-of-febrifugine-and-isofebrifugine-in-dichroa-febrifuga-root-by-hplc-method
#10
Ji-Yuan Zhang, Zi-Han Liu, Xiao-Qian Liu, Wei-Hong Feng, Li-Xin Yang, Zhi-Min Wang, Chun Li
To develop the HPLC method for simultaneous determination of febrifugine and isofebrifugine in Dichroa febrifuga root, and on the basis of this, the feasibility of quantitative analysis of multi-component by a single-marker (QAMS) model for the determination of the two alkaloids was investigated. The chromatographic separation was performed on an octadecyl bonded silica gel column with mixed solvent consisting of acetonitrile-water-glacial acetic acid-triethylamine (9∶91∶0.36∶0.745) as mobile phase at a flow rate of 1...
May 2017: Zhongguo Zhong Yao za Zhi, Zhongguo Zhongyao Zazhi, China Journal of Chinese Materia Medica
https://www.readbyqxmd.com/read/29071440/reduction-of-the-relative-centrifugal-force-influences-cell-number-and-growth-factor-release-within-injectable-prf-based-matrices
#11
Simon Wend, Alica Kubesch, Anna Orlowska, Sarah Al-Maawi, Niklas Zender, Andre Dias, Richard J Miron, Robert Sader, Patrick Booms, C James Kirkpatrick, Joseph Choukroun, Shahram Ghanaati
Platelet rich fibrin (PRF) is a blood concentrate system obtained by centrifugation of peripheral blood. First PRF matrices exhibited solid fibrin scaffold, more recently liquid PRF-based matrix was developed by reducing the relative centrifugation force and time. The aim of this study was to systematically evaluate the influence of RCF (relative centrifugal force) on cell types and growth factor release within injectable PRF- in the range of 60-966 g using consistent centrifugation time. Numbers of cells was analyzed using automated cell counting (platelets, leukocytes, neutrophils, lymphocytes and monocytes) and histomorphometrically (CD 61, CD- 45, CD-15+, CD-68+, CD-3+ and CD-20)...
October 25, 2017: Journal of Materials Science. Materials in Medicine
https://www.readbyqxmd.com/read/29060944/a-person-centered-approach-to-study-intimacy-and-sexuality-in-residential-care-facility-rcf-clients-with-dementia-methodological-considerations-and-a-guide-to-study-design
#12
Tineke S M Roelofs, Katrien G Luijkx, Petri J C M Embregts
BACKGROUND: The person-centered perspective of residential care facility (RCF) residents with dementia with regard to their intimate and sexual lives is largely neglected in research. OBJECTIVE: We aim to provide methodological considerations and reflections on a performed qualitative study. Recommendations and a guide to study design are provided to inform and encourage future research on the inclusion of people with dementia as participants. METHODS: Methodological recommendations and reflections are described in chronological order of the procedure...
2017: NeuroRehabilitation
https://www.readbyqxmd.com/read/29057671/retinal-vascular-resistance-in-arterial-hypertension
#13
Dennis Kannenkeril, Joanna M Harazny, Agnes Bosch, Christian Ott, Georg Michelson, Roland E Schmieder, Stefanie Friedrich
PURPOSE: Retinal microcirculation represents an easily accessible, non-invasive, in-vivo possibility to assess early microvascular changes. In addition to the assessment of functional (e.g. retinal capillary flow, RCF) and retinal arteriolar structural parameters (e.g. wall-to-lumen-ratio, WLR) we now suggest a new parameter reflecting the resistance in small retinal arterioles (RVR). MATERIAL AND METHODS: In 45 normotensive (NT) subjects and 123 patients with hypertension stage 1 (HT) we assessed RCF, WLR, arteriolar diameter, lumen diameter and wall cross section area in the retinal circulation by using scanning laser Doppler flowmetry (SLDF)...
October 23, 2017: Blood Pressure
https://www.readbyqxmd.com/read/28962560/disability-residential-environment-and-social-participation-factors-influencing-daily-mobility-of-persons-living-in-residential-care-facilities-in-two-regions-of-france
#14
Noémie Rapegno, Jean-François Ravaud
BACKGROUND: Despite the context of individualization of public policies and promotion of independent living, residential care facilities (RCFs) (called "établissements medico-sociaux" in France) still represent the main system used by disabled people. Through a study of their daily mobility, this article proposes a geographical approach to the examination of factors influencing the social participation of disabled persons with motor impairments who live in residential care facilities...
September 29, 2017: BMC Health Services Research
https://www.readbyqxmd.com/read/28961751/selective-patterns-of-cognitive-impairment-in-spinocerebellar-ataxia-type-6-and-idiopathic-late-onset-cerebellar-ataxia
#15
Zubir S Rentiya, Brian C Jung, Junun Bae, Christine M Liszewski, Ann Fishman, Annie X Du, Russell L Margolis, Sarah H Ying
Purpose: To determine cognitive impairment patterns in patients with spinocerebellar ataxia type 6 (SCA6) compared to patients with idiopathic late-onset cerebellar ataxia (ILOCA). Methods: Neurocognitive testing was conducted on 21 SCA6, nine ILOCA, and 27 controls subjects. Intergroup differences were assessed using the Wilcoxon signed-ranked test or Student's t-test. Principal component analysis (PCA) was performed on nine cognitive variables, and Hotelling's T-squared test assessed group-specific differences...
September 7, 2017: Archives of Clinical Neuropsychology: the Official Journal of the National Academy of Neuropsychologists
https://www.readbyqxmd.com/read/28952964/incidence-of-the-different-sources-of-noise-on-the-uncertainty-in-radiochromic-film-dosimetry-using-single-channel-and-multichannel-methods
#16
Antonio Gonzalez-Lopez, Juan Antonio Vera-Sánchez, Carmen Ruiz-Morales
The incidence of the different sources of noise on the uncertainty in radiochromic film (RCF) dosimetry using single channel and multichannel methods is investigated in this work. These sources of noise are extracted from pixel value (PV) readings and dose maps. Different pieces of a RCF were irradiated to uniform doses ranging from 0 to 1092 cGy. Then, the pieces were read at two resolutions (72 and 150 ppp) with two flatbed scanners: Epson 10000XL and Epson V800, representing two states of technology...
September 27, 2017: Physics in Medicine and Biology
https://www.readbyqxmd.com/read/28884256/geochemical-distribution-of-major-and-trace-elements-in-agricultural-soils-of-castilla-la-mancha-central-spain-finding-criteria-for-baselines-and-delimiting-regional-anomalies
#17
Sandra Bravo, Efrén García-Ordiales, Francisco Jesús García-Navarro, José Ángel Amorós, Caridad Pérez-de-Los-Reyes, Raimundo Jiménez-Ballesta, José María Esbrí, Eva María García-Noguero, Pablo Higueras
Castilla-La Mancha (central Spain) is a region characterized by significant agricultural production aimed at high-quality food products such as wine and olive oil. The quality of agricultural products depends directly on the soil quality. Soil geochemistry, including dispersion maps and the recognition of baselines and anomalies of various origins, is the most important tool to assess soil quality. With this objective, 200 soil samples were taken from agricultural areas distributed among the different geological domains present in the region...
September 7, 2017: Environmental Science and Pollution Research International
https://www.readbyqxmd.com/read/28821145/utilization-of-cotton-waste-for-regenerated-cellulose-fibres-influence-of-degree-of-polymerization-on-mechanical-properties
#18
Rasike De Silva, Nolene Byrne
Cotton accounts for 30% of total fibre production worldwide with over 50% of cotton being used for apparel. In the process from cotton bud to finished textile product many steps are required, and significant cotton waste is generated. Typically only 30% of pre consumer cotton is recycled. Here we use cotton waste lint to produce regenerated cellulose fibres (RCF). We find the RCF from waste cotton lint had increased mechanical properties compared to RCF produced from wood pulp. We show that this is likely linked to the higher degree of polymerization (DP) of waste cotton lint...
October 15, 2017: Carbohydrate Polymers
https://www.readbyqxmd.com/read/28774081/rolling-contact-fatigue-performances-of-carburized-and-high-c-nanostructured-bainitic-steels
#19
Yanhui Wang, Fucheng Zhang, Zhinan Yang, Bo Lv, Chunlei Zheng
In the present work, the nanostructured bainitic microstructures were obtained at the surfaces of a carburized steel and a high-C steel. The rolling contact fatigue (RCF) performances of the two alloy steels with the same volume fraction of undissolved carbide were studied under lubrication. Results show that the RCF life of the carburized nanostructured bainitic steel is superior to that of the high-C nanostructured bainitic steel in spite of the chemical composition, phase constituent, plate thickness of bainitic ferrite, hardness, and residual compressive stress value of the contact surfaces of the two steels under roughly similar conditions...
November 25, 2016: Materials
https://www.readbyqxmd.com/read/28770196/functionality-of-immunoglobulin-g-and-immunoglobulin-m-antibody-physisorbed-on-cellulosic-films
#20
Ziwei Huang, Vikram Singh Raghuwanshi, Gil Garnier
The functionality and aging mechanism of antibodies physisorbed onto cellulosic films was investigated. Blood grouping antibodies immunoglobulin G (IgG) and immunoglobulin M (IgM) were adsorbed onto smooth cellulose acetate (CAF) and regenerated cellulose (RCF) films. Cellulose films and adsorbed IgG layers were characterized at the air and liquid interface by X-ray and neutron reflectivity (NR), respectively. Cellulose film 208 Å thick (in air) swell to 386 Å once equilibrated in water. IgG adsorbs from solution onto cellulose as a partial layer 62 Å thick...
2017: Frontiers in Bioengineering and Biotechnology
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