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https://www.readbyqxmd.com/read/29244944/evaluating-the-performance-of-household-liquefied-petroleum-gas-cookstoves
#1
Guofeng Shen, Michael D Hays, Kirk R Smith, Craig Williams, Jerroll W Faircloth, James J Jetter
Liquefied Petroleum Gas (LPG) cookstoves are considered to be an important solution for mitigating household air pollution; however, their performance has rarely been evaluated. To fill the data and knowledge gaps in this important area, eighty-nine laboratory tests were conducted to quantify efficiencies and pollutant emissions from five commercially available household LPG stoves under different burning conditions. The mean thermal efficiency (± standard deviation) for the tested LPG cookstoves was 51±6%, meeting guidelines for the highest tier level (Tier 4) under the International Organization for Standardization, International Workshop Agreement 11...
December 15, 2017: Environmental Science & Technology
https://www.readbyqxmd.com/read/29244890/prevalence-and-predictors-of-sj%C3%A3-gren-s-syndrome-in-patients-with-burning-mouth-symptoms
#2
Young Chan Lee, Ran Song, You-Jung Yang, Young-Gyu Eun
AIMS: To investigate the prevalence and predictive factors of Sjögren's syndrome (SS) in a cohort of patients with burning mouth symptoms. METHODS: A total of 125 patients with burning mouth symptoms were enrolled in a prospective study and assessed for the presence of SS. The severity of oral symptoms was evaluated by using questionnaires. Salivary flow rates and salivary scintigraphy were used to evaluate salivary function. Patient laboratory work-ups were reviewed, and SS was diagnosed by a rheumatologist based on the American-European Consensus Group criteria...
December 15, 2017: Journal of Oral & Facial Pain and Headache
https://www.readbyqxmd.com/read/29244861/reliability-of-the-parameters-of-the-power-duration-relationship-using-maximal-effort-time-trials-under-laboratory-conditions
#3
Christoph Triska, Bettina Karsten, Bernd Heidegger, Bernhard Koller-Zeisler, Bernhard Prinz, Alfred Nimmerichter, Harald Tschan
The purpose of this study was to assess the reliability of critical power (CP) and the total amount of work accomplished above CP (W´) across repeated tests using ecologically valid maximal effort time-trials (TT) under laboratory conditions. After an initial incremental exercise test, ten well-trained male triathletes (age: 28.5 ± 4.7 years; body mass: 73.3 ± 7.9 kg; height: 1.80 ± 0.07 m; maximal aerobic power [MAP]: 329 ± 41 W) performed three testing sessions (Familiarization, Test I and Test II) each comprising three TT (12, 7, and 3 min with a passive recovery of 60 min between trials)...
2017: PloS One
https://www.readbyqxmd.com/read/29244715/response-characterization-of-an-inexpensive-aerosol-sensor
#4
Joel Kuula, Timo Mäkelä, Risto Hillamo, Hilkka Timonen
Inexpensive aerosol sensors have been considered as a complementary option to address the issue of expensive but low spatial coverage air quality monitoring networks. However, the accuracy and response characteristics of these sensors is poorly documented. In this study, inexpensive Shinyei PPD42NS and PPD60PV sensors were evaluated using a novel laboratory evaluation method. A continuously changing monodisperse size distribution of particles was generated using a Vibrating Orifice Aerosol Generator. Furthermore, the laboratory results were validated in a field experiment...
December 15, 2017: Sensors
https://www.readbyqxmd.com/read/29244182/poor-performance-of-two-rapid-immunochromatographic-assays-for-anti-japanese-encephalitis-virus-immunoglobulin-m-detection-in-cerebrospinal-fluid-and-serum-from-patients-with-suspected-japanese-encephalitis-virus-infection-in-laos
#5
Onanong Sengvilaipaseuth, Josée Castonguay-Vanier, Anisone Chanthongthip, Ooyanong Phonemixay, Soulignasack Thongpaseuth, Manivanh Vongsouvath, Paul N Newton, Tehmina Bharucha, Audrey Dubot-Pérès
Background: Japanese encephalitis virus (JEV) is a leading identified cause of encephalitis in Asia, often occurring in rural areas with poor access to laboratory diagnostics. We evaluated two rapid diagnostic tests (RDTs) for anti-JEV immunoglobulin M (IgM) detection. Methods: Consecutive cerebrospinal fluid and serum from 388 patients (704 samples) with suspected JEV infections admitted to six hospitals in Laos were tested with one of two SD-Bioline anti-JEV IgM RDTs and the World Health Organization standard anti-JEV IgM enzyme-linked immunosorbent assay (ELISA; Panbio Japanese Encephalitis-Dengue IgM Combo ELISA...
December 13, 2017: Transactions of the Royal Society of Tropical Medicine and Hygiene
https://www.readbyqxmd.com/read/29244131/reporting-antimicrobial-susceptibilities-and-resistance-phenotypes-in-acinetobacter-spp-a-nationwide-proficiency-study
#6
Felipe Fernández-Cuenca, María Tomás, Francisco-Javier Caballero-Moyano, Germán Bou, Álvaro Pascual
Objectives: To evaluate the proficiency of Spanish microbiology laboratories with respect to the antimicrobial susceptibility testing (AST) of Acinetobacter spp. Methods: Eight Acinetobacter spp. with different resistance mechanisms were sent to 48 Spanish centres which were asked to report: (i) the AST system used; (ii) MICs; (iii) breakpoints used (CLSI versus EUCAST); (iv) clinical category; and (v) resistance mechanisms inferred. Minor, major and very major errors (mE, ME and VME, respectively) were determined...
December 13, 2017: Journal of Antimicrobial Chemotherapy
https://www.readbyqxmd.com/read/29244000/identification-of-recent-cases-of-hepatitis-c-virus-infection-using-physical-chemical-properties-of-hypervariable-region-1-and-a-radial-basis-function-neural-network-classifier
#7
James Lara, Mahder Teka, Yury Khudyakov
BACKGROUND: Identification of acute or recent hepatitis C virus (HCV) infections is important for detecting outbreaks and devising timely public health interventions for interruption of transmission. Epidemiological investigations and chemistry-based laboratory tests are 2 main approaches that are available for identification of acute HCV infection. However, owing to complexity, both approaches are not efficient. Here, we describe a new sequence alignment-free method to discriminate between recent (R) and chronic (C) HCV infection using next-generation sequencing (NGS) data derived from the HCV hypervariable region 1 (HVR1)...
December 6, 2017: BMC Genomics
https://www.readbyqxmd.com/read/29243738/tissue-staining-for-thsd7a-in-glomeruli-correlates-with-serum-antibodies-in-primary-membranous-nephropathy-a-clinicopathological-study
#8
Shree G Sharma, Christopher P Larsen
Thrombospondin type-1 domain-containing 7A (THSD7A) is the most recently recognized target antigen in patients with membranous nephropathy. We stained membranous nephropathy biopsies processed in our laboratory for phospholipase A2 receptor and THSD7A over an 18-month period and selected all THSD7A-positive cases for study. Serum samples from most patients were tested by an indirect immunofluorescence assay for the presence of THSD7A antibodies (Euroimmun). A total of 31 patients were diagnosed with THSD7A-associated membranous nephropathy for a prevalence of 2...
December 15, 2017: Modern Pathology: An Official Journal of the United States and Canadian Academy of Pathology, Inc
https://www.readbyqxmd.com/read/29243659/comparative-study-of-the-serum-measurement-of-pth-on-roche-cobas-e411%C3%A2-versus-the-abbott-architect-ci8200%C3%A2
#9
Mohammed Bensalah, Ouardia Bouayadi, Nawal Rahmani, Amina Lyagoubi, Somiya Lamrabat, Mohammed Choukri
Parathormone (PTH) is the main hormone of phosphocalcic homeostasis. It is synthesized and secreted by the parathyroid glands. PTH has become a routine test in the medical biology laboratory. However, its measurement presents analytical difficulties with the various marketed kits. The aim of this work is to present the results of a comparative study between the PTH measurment on Abbott architect ci8200 and on Roche's Cobas e411 automaton. It is a prospective study carried out for 252 hospitalized patients in the various departments of the University Hospital Center Mohammed VI of Oujda...
December 15, 2017: Annales de Biologie Clinique
https://www.readbyqxmd.com/read/29243518/synaesthesia-is-linked-to-more-vivid-and-detailed-content-of-autobiographical-memories-and-less-fading-of-childhood-memories
#10
Taylor Chin, Jamie Ward
People with synaesthesia have enhanced memory on a wide range of laboratory tests of episodic memory, but very little is known about their real-world memory. This study used a standard measure of autobiographical remembering (the Autobiographical Memory Questionnaire, AMQ) considering four constructs (Recollection, Belief, Impact and Rehearsal) and two time periods (recent memories from adulthood, remote memories from childhood). Synaesthetes reported more Recollection (e.g., sensory detail) and Belief (e.g...
December 15, 2017: Memory
https://www.readbyqxmd.com/read/29243395/species-comparison-of-postnatal-development-of-the-female-reproductive-system
#11
REVIEW
Susan B Laffan, Lorraine M Posobiec, Jenny E Uhl, Justin D Vidal
The postnatal development of the female reproductive system in laboratory animals and humans is reviewed. To enable a meaningful species comparison of the developing female reproductive system, common definitions of developmental processes were established with a focus made on aspects that are similar across species. A species comparison of the key endocrine, morphologic, and functional (onset of ovarian cycles and ability to reproduce) features of postnatal development of the female reproductive system is provided for human, nonhuman primate, dog, rat, and also mouse, minipig, and rabbit where possible...
December 15, 2017: Birth Defects Research
https://www.readbyqxmd.com/read/29243247/randomized-cross-over-trial-comparing-the-diagnosis-of-gestational-diabetes-by-oral-glucose-tolerance-test-and-a-designed-breakfast-glucose-profile
#12
Colin Marais, David R Hall, Lourentia van Wyk, Magda Conradie
OBJECTIVE: To compare a glucose test based on a standardized, designed breakfast to the 75-g oral glucose tolerance test (OGTT), comparing venous and capillary glucose values for the diagnosis of gestational diabetes mellitus (GDM). METHODS: The present prospective, randomized, cross-over trial enrolled patients at high risk of developing GDM who were attending the High-Risk Antenatal Clinic of Tygerberg Hospital, Cape Town, South Africa, between March 1, 2015, and December 31, 2015...
December 15, 2017: International Journal of Gynaecology and Obstetrics
https://www.readbyqxmd.com/read/29243051/diagnostic-outcome-and-indications-for-testing-in-patients-with-positive-anca-at-a-canadian-tertiary-care-centre
#13
Cyrus Chehroudi, Ronald A Booth, Nataliya Milman
INTRODUCTION/OBJECTIVE: With widespread availability of anti-neutrophil cytoplasmic antibody (ANCA) testing, interpreting positive results has become increasingly challenging. Here, we conducted a retrospective study to evaluate indications for testing and diagnosis of patients with positive ANCA. METHODS: Positive ANCA tests (immunofluorescence or immunoassay) performed between April 2014 and March 2015 were identified using the Ottawa Hospital (TOH) laboratory information system...
December 14, 2017: Rheumatology International
https://www.readbyqxmd.com/read/29242965/-bone-banks-the-state-of-the-art
#14
REVIEW
A Pruß, U Kalus
Bone banks are responsible for the collection, production, testing, packaging, storage and delivery of osseous grafts. In compliance with legal and quality requirements, it is their main task to ensure the biological properties and the microbiological safety of the transplants as well. German legal requirements for bone banking are explained and current standards with respect to donor selection, laboratory tests and tissue processing, as well as labeling are discussed. Production and preparation procedures should include a validated microbiological inactivation method that largely preserves the biological properties of the tissue...
December 14, 2017: Der Orthopäde
https://www.readbyqxmd.com/read/29242895/comparison-of-laboratory-developed-tests-and-fda-approved-assays-for-braf-egfr-and-kras-testing
#15
Annette S Kim, Angela N Bartley, Julia A Bridge, Suzanne Kamel-Reid, Alexander J Lazar, Neal I Lindeman, Thomas A Long, Jason D Merker, Alex J Rai, David L Rimm, Paul G Rothberg, Patricia Vasalos, Joel T Moncur
Importance: The debate about the role of the Food and Drug Administration (FDA) in the regulation of laboratory-developed tests (LDTs) has focused attention on the analytical performance of all clinical laboratory testing. This study provides data comparing the performance of LDTs and FDA-approved companion diagnostics (FDA-CDs) in proficiency testing (PT) provided by the College of American Pathologists Molecular Oncology Committee. Objective: To compare the analytical performance of LDTs and FDA-CDs on well-characterized PT samples and to compare the practice characteristics of laboratories using these assays...
December 14, 2017: JAMA Oncology
https://www.readbyqxmd.com/read/29242836/vaccination-with-a-recombinant-h7-hemagglutinin-based-influenza-virus-vaccine-induces-broadly-reactive-antibodies-in-humans
#16
Daniel Stadlbauer, Arvind Rajabhathor, Fatima Amanat, Daniel Kaplan, Abusaleh Masud, John J Treanor, Ruvim Izikson, Manon M Cox, Raffael Nachbagauer, Florian Krammer
Human influenza virus infections with avian subtype H7N9 viruses are a major public health concern and have encouraged the development of effective H7 prepandemic vaccines. In this study, baseline and postvaccination serum samples of individuals aged 18 years and older who received a recombinant H7 hemagglutinin vaccine with and without an oil-in-water emulsion (SE) adjuvant were analyzed using a panel of serological assays. While only a small proportion of individuals seroconverted to H7N9 as measured by the conventional hemagglutination inhibition assay, our data show strong induction of anti-H7 hemagglutinin antibodies as measured by an enzyme-linked immunosorbent assay (ELISA)...
November 2017: MSphere
https://www.readbyqxmd.com/read/29242711/effect-of-point-of-care-diagnostics-on-maternal-outcomes-in-human-immunodeficiency-virus-infected-women-systematic-review-and-meta-analysis
#17
Tivani P Mashamba-Thompson, Rebecca L Morgan, Benn Sartorius, Brittany Dennis, Paul K Drain, Lehana Thabane
Introduction: The World Health Organization advocates for increased accessibility of HIV-related point-of-care (POC) diagnostics in settings that lack laboratory infrastructure. The aim of this study is to assess the impact of POC diagnostics on maternal health outcomes in HIV-infected women. Methods: A systematic literature review used multiple data sources as follows: Cochrane Infectious Disease Group Specialized Register; Cochrane Central Register of Control Trials, published in The Cochrane Library; PubMed; EBSCOhost and LILACS from January 2000 to October 2015...
June 2017: Point of Care
https://www.readbyqxmd.com/read/29242391/method-verification-requirements-for-an-advanced-imaging-system-for-microbial-plate-count-enumeration
#18
David Jones, Tony Cundell
Technical Abstract: The Growth Direct™ System that automates the incubation and reading of membrane filtration microbial counts on soybean-casein digest, Sabouraud dextrose and R2A agar differs only from the traditional method in that micro-colonies on the membrane are counted using an advanced imaging system up to 50% earlier in the incubation. Based on the recommendations in USP <1223> Validation of New Microbiological Testing Methods, the system may be implemented in a microbiology laboratory after simple method verification and not a full method validation...
December 14, 2017: PDA Journal of Pharmaceutical Science and Technology
https://www.readbyqxmd.com/read/29242239/defining-quality-in-cardiovascular-imaging-a-scientific-statement-from-the-american-heart-association
#19
REVIEW
Leslee J Shaw, Ron Blankstein, Jill E Jacobs, Jonathon A Leipsic, Raymond Y Kwong, Viviany R Taqueti, Rob S B Beanlands, Jennifer H Mieres, Scott D Flamm, Thomas C Gerber, John Spertus, Marcelo F Di Carli
The aims of the current statement are to refine the definition of quality in cardiovascular imaging and to propose novel methodological approaches to inform the demonstration of quality in imaging in future clinical trials and registries. We propose defining quality in cardiovascular imaging using an analytical framework put forth by the Institute of Medicine whereby quality was defined as testing being safe, effective, patient-centered, timely, equitable, and efficient. The implications of each of these components of quality health care are as essential for cardiovascular imaging as they are for other areas within health care...
December 2017: Circulation. Cardiovascular Imaging
https://www.readbyqxmd.com/read/29242176/chinese-cardiovascular-disease-mobile-apps-information-types-information-quality-and-interactive-functions-for-self-management-systematic-review
#20
REVIEW
Bo Xie, Zhaohui Su, Wenhui Zhang, Run Cai
BACKGROUND: China has a large population with cardiovascular disease (CVD) that requires extensive self-management. Mobile health (mHealth) apps may be a useful tool for CVD self-management. Little is currently known about the types and quality of health information provided in Chinese CVD mobile apps and whether app functions are conducive to promoting CVD self-management. OBJECTIVE: We undertook a systematic review to evaluate the types and quality of health information provided in Chinese CVD mobile apps and interactive app functions for promoting CVD self-management...
December 14, 2017: JMIR MHealth and UHealth
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