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Laboratory quality

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https://www.readbyqxmd.com/read/28340420/extended-anaerobic-conditions-in-the-biological-wastewater-treatment-higher-reduction-of-toxicity-compared-to-target-organic-micropollutants
#1
Johannes Völker, Tobias Vogt, Sandro Castronovo, Arne Wick, Thomas A Ternes, Adriano Joss, Jörg Oehlmann, Martin Wagner
Extended anaerobic conditions during biological wastewater treatment may enhance the biodegradation of micropollutants. To explore this, we combined iron-reducing or substrate-limited anaerobic conditions and aerobic pilot-scale reactors directly at a wastewater treatment plant. To investigate the detoxification by these processes, we applied two in vitro bioassays for baseline toxicity (Microtox) and reactive toxicity (AREc32) as well as in vivo bioassays with aquatic model species in two laboratory experiments (Desmodesmus subspicatus, Daphnia magna) and two on-site, flow-through experiments (Potamopyrgus antipodarum, Lumbriculus variegatus)...
March 14, 2017: Water Research
https://www.readbyqxmd.com/read/28340232/a-proposed-set-of-metrics-to-reduce-patient-safety-risk-from-within-the-anatomic-pathology-laboratory
#2
Peter Banks, Richard Brown, Alex Laslowski, Yvonne Daniels, Phil Branton, John Carpenter, Richard Zarbo, Ramses Forsyth, Yan-Hui Liu, Shane Kohl, Joachim Diebold, Shinobu Masuda, Tim Plummer, Eslie Dennis
Background: Anatomic pathology laboratory workflow consists of 3 major specimen handling processes. Among the workflow are preanalytic, analytic, and postanalytic phases that contain multistep subprocesses with great impact on patient care. A worldwide representation of experts came together to create a system of metrics, as a basis for laboratories worldwide, to help them evaluate and improve specimen handling to reduce patient safety risk. Method: Members of the Initiative for Anatomic Pathology Laboratory Patient Safety (IAPLPS) pooled their extensive expertise to generate a list of metrics highlighting processes with high and low risk for adverse patient outcomes...
March 18, 2017: Laboratory Medicine
https://www.readbyqxmd.com/read/28340123/rapid-ascent-from-zero-quality-to-international-organization-for-standardization-accreditation%C3%A2-a-case-study-of-hai-duong-preventive-medicine-center-in-vietnam-2012-2013
#3
Cuong Ngoc Duong, Kyle B Bond, Humberto Carvalho, Hien Bui Thi Thu, Thuong Nguyen, Thomas Rush
Objectives: In 2012, the Vietnam Ministry of Health sought to improve the quality of health laboratories by introducing international quality standards. Methods: Strengthening Laboratory Management Toward Accreditation (SLMTA), a year-long, structured, quality improvement curriculum (including projects and mentorship) was piloted in 12 laboratories. Progress was measured using a standardized audit tool (Stepwise Laboratory Quality Improvement Process Towards Accreditation)...
March 15, 2017: American Journal of Clinical Pathology
https://www.readbyqxmd.com/read/28339692/decrease-in-unnecessary-vitamin-d-testing-using-clinical-decision-support-tools-making-it-harder-to-do-the-wrong-thing
#4
Andrew H Felcher, Rachel Gold, David M Mosen, Ashley B Stoneburner
Objective: To evaluate the impact of clinical decision support (CDS) tools on rates of vitamin D testing. Screening for vitamin D deficiency has increased in recent years, spurred by studies suggesting vitamin D's clinical benefits. Such screening, however, is often unsupported by evidence and can incur unnecessary costs. Materials and Methods: We evaluated how rates of vitamin D screening changed after we implemented 3 CDS tools in the electronic health record (EHR) of a large health plan: (1) a new vitamin D screening guideline, (2) an alert that requires clinician acknowledgement of current guidelines to continue ordering the test (a "hard stop"), and (3) a modification of laboratory ordering preference lists that eliminates shortcuts...
February 19, 2017: Journal of the American Medical Informatics Association: JAMIA
https://www.readbyqxmd.com/read/28339432/bipolar-versus-unipolar-intraarticular-pulsed-radiofrequency-thermocoagulation-in-chronic-knee-pain-treatment-a-prospective-randomized-trial
#5
Ersel Gulec, Hayri Ozbek, Sinan Pektas, Geylan Isik
BACKGROUND: Chronic knee pain is a major widespread problem causing significant impairment of daily function. Pulsed radiofrequency has been shown to reduce severe chronic joint pain as a non-pharmacological and less invasive treatment method. OBJECTIVE: We aimed to compare the effectiveness of unipolar and bipolar intraarticular pulsed radiofrequency methods in chronic knee pain control. STUDY DESIGN: Prospective, randomized, double-blind study...
March 2017: Pain Physician
https://www.readbyqxmd.com/read/28339387/introduction-to-quality-control-in-a-compounding-pharmacy
#6
Loyd V Allen
A quality-based program is vital in every compounding pharmacy to ensure that each preparation is compounded properly and is stable for its expected duration of use. This article discusses quality control, quality assurance, continuous quality improvement, and also describes the components of an in-house (in-pharmacy) quality program, as well as the role of outside laboratories.
November 2016: International Journal of Pharmaceutical Compounding
https://www.readbyqxmd.com/read/28338929/performance-tests-of-active-personal-dosemeter-developed-by-%C3%A3-nrtc-nel
#7
Dogan Yasar, Enis Kapdan, Muharrem Korkmaz
The Active personal dosemeter (APD) developed by Çekmece Nuclear Research and Training Center/Nuclear Electronic Laboratory (ÇNRTC/NEL) was calibrated at the reference radiation quality (137Cs). The performance tests were carried out with 137Cs, 60Co and X-ray beam qualities in compliance with the standards of International Organization for Standardization ISO4037-1,3 and The International Electrotechnical Commission, IEC61526:2010. Response of the personal dose equivalent was observed to be within the range from -7...
March 1, 2017: Radiation Protection Dosimetry
https://www.readbyqxmd.com/read/28337628/study-of-plasma-off-gas-treatment-from-spent-ion-exchange-resin-pyrolysis
#8
Hernán Ariel Castro, Vittorio Luca, Hugo Luis Banchi
Polystyrene divinylbenzene-based ion exchange resins are employed extensively within nuclear power plants (NPPs) and research reactors for purification and chemical control of the cooling water system. To maintain the highest possible water quality, the resins are regularly replaced as they become contaminated with a range of isotopes derived from compromised fuel elements as well as corrosion and activation products including (14)C, (60)Co, (90)Sr, (129)I, and (137)Cs. Such spent resins constitute a major proportion (in volume terms) of the solid radioactive waste generated by the nuclear industry...
March 23, 2017: Environmental Science and Pollution Research International
https://www.readbyqxmd.com/read/28337624/geochemical-behavior-of-ultramafic-waste-rocks-with-carbon-sequestration-potential-a-case-study-of-the-dumont-nickel-project-amos-qu%C3%A3-bec
#9
El Hadji Babacar Kandji, Benoit Plante, Bruno Bussière, Georges Beaudoin, Pierre-Philippe Dupont
The geochemical behavior of ultramafic waste rocks and the effect of carbon sequestration by these waste rocks on the water drainage quality were investigated using laboratory-scale kinetic column tests on samples from the Dumont Nickel Project (RNC Minerals, QC, Canada). The test results demonstrated that atmospheric CO2 dissolution induced the weathering of serpentine and brucite within the ultramafic rocks, generating high concentrations of Mg and HCO3(-) with pH values ranging between 9 and 10 in the leachates that promote the precipitation of secondary Mg carbonates...
March 23, 2017: Environmental Science and Pollution Research International
https://www.readbyqxmd.com/read/28337391/an-efficient-field-and-laboratory-workflow-for-plant-phylotranscriptomic-projects
#10
Ya Yang, Michael J Moore, Samuel F Brockington, Alfonso Timoneda, Tao Feng, Hannah E Marx, Joseph F Walker, Stephen A Smith
PREMISE OF THE STUDY: We describe a field and laboratory workflow developed for plant phylotranscriptomic projects that involves cryogenic tissue collection in the field, RNA extraction and quality control, and library preparation. We also make recommendations for sample curation. METHODS AND RESULTS: A total of 216 frozen tissue samples of Caryophyllales and other angiosperm taxa were collected from the field or botanical gardens. RNA was extracted, stranded mRNA libraries were prepared, and libraries were sequenced on Illumina HiSeq platforms...
March 2017: Applications in Plant Sciences
https://www.readbyqxmd.com/read/28336392/diagnostic-laboratories-in-asia-pacific-region-investigation-on-quality-characteristics-and-time-of-reporting
#11
Tony C Badrick, Anton Gutscher, Nakako Sakamoto, Daniel Chin
This is the result of a Survey of various aspects of quality, cost and speed in a large sample of diagnostic laboratories in the Asia Pacific region. It is the first of its type to be published and represents a snapshot of the current performance in a large number of diagnostic laboratories in a broad range of countries in the Asia Pacific region. This demonstrates that there are common issues facing all the laboratories surveyed but also common solutions using a Quality Systems approach which involves Accreditation, Customer responsiveness, greater use of IT, automation and Lean principles...
March 20, 2017: Clinical Biochemistry
https://www.readbyqxmd.com/read/28336100/in-vivo-evaluation-of-the-hippocampal-glutamate-gaba-and-the-bdnf-levels-associated-with-spatial-memory-performance-in-a-rodent-model-of-neuropathic-pain
#12
S Saffarpour, M Shaabani, N Naghdi, M Farahmandfar, A Janzadeh, F Nasirinezhad
BACKGROUND: Patients with chronic pain usually suffer from learning and memory impairment which may significantly decrease their quality of life. Despite laboratory and clinical studies, the mechanism underlying this memory impairment remains elusive. We evaluated the effect of chronic pain on the glutamate and GABA levels and BDNF expression in the CA1 region of hippocampus as a possible explanation for memory impairment related to neuropathic pain. METHODS: In this respect, 30 male rats were randomly allocated to 3 groups as control, sham and neuropathic...
March 20, 2017: Physiology & Behavior
https://www.readbyqxmd.com/read/28335744/a-systematic-review-of-prognostic-factors-at-the-end-of-life-for-people-with-a-hematological-malignancy
#13
Elise Button, Raymond Javan Chan, Shirley Chambers, Jason Butler, Patsy Yates
BACKGROUND: Accurate prognosticating is needed when patients are nearing the end of life to ensure appropriate treatment decisions, and facilitate palliative care provision and transitioning to terminal care. People with a hematological malignancy characteristically experience a fluctuating illness trajectory leading to difficulties with prognosticating. The aim of this review was to identify current knowledge regarding 'bedside' prognostic factors in the final 3 months of life for people with a hematological malignancy associated with increased risk of mortality...
March 23, 2017: BMC Cancer
https://www.readbyqxmd.com/read/28335000/better-than-sham-a-double-blind-placebo-controlled-neurofeedback-study-in-primary-insomnia
#14
Manuel Schabus, Hermann Griessenberger, Maria-Teresa Gnjezda, Dominik P J Heib, Malgorzata Wislowska, Kerstin Hoedlmoser
Neurofeedback training builds upon the simple concept of instrumental conditioning, i.e. behaviour that is rewarded is more likely to reoccur, an effect Thorndike referred to as the 'law of effect'. In the case of neurofeedback, information about specific electroencephalographic activity is fed back to the participant who is rewarded whenever the desired electroencephalography pattern is generated. If some kind of hyperarousal needs to be addressed, the neurofeedback community considers sensorimotor rhythm neurofeedback as the gold standard...
February 23, 2017: Brain: a Journal of Neurology
https://www.readbyqxmd.com/read/28334584/delayed-workup-of-rectal-bleeding-in-adult-primary-care-examining-process-of-care-failures
#15
Saul N Weingart, Elena M Stoffel, Daniel C Chung, Thomas D Sequist, Ruth I Lederman, Stephen R Pelletier, Helen M Shields
BACKGROUND: Although delayed colorectal cancer diagnoses figure prominently in medical malpractice claims, little is known about the quality of primary care clinicians' workup of rectal bleeding. METHODS: In this study, 438 patients were identified using International Classification of Diseases, Ninth Revision, Clinical Modification (ICD-9-CM) codes for rectal bleeding, hemorrhoids, and blood in the stool at 10 Boston adult primary care practices. Following nurse chart abstraction, physician reviewers assessed the overall quality of care and key care processes...
January 2017: Joint Commission Journal on Quality and Patient Safety
https://www.readbyqxmd.com/read/28333580/air-quality-measurements-from-rubber-bands-to-tapping-the-rainbow
#16
George M Hidy, Peter K Mueller, Samuel L Altshuler, Judith C Chow, John G Watson
It is axiomatic that good measurements are integral to good public policy for environmental protection. The generalized term for "measurements" includes sampling and quantitation, data integrity, documentation, network design, sponsorship and operations, and archiving and accessing for applications. Each of these components has evolved and advanced over the last 200 years as knowledge of atmospheric chemistry and physics has matured. Air quality was first detected by what people could see smoke and smell contaminated air...
March 23, 2017: Journal of the Air & Waste Management Association
https://www.readbyqxmd.com/read/28333573/new-approaches-for-characterization-of-the-genetic-stability-of-vaccine-cell-lines
#17
Siemon Ng, Lucy Gisonni-Lex, Ali Azizi
The genetic stability of cell lines is a critical analytical attribute required to demonstrate the quality of cells over time. During cell passage, mutations can arise in the genomic DNA, potentially leading to changes in the final vaccine product. The identity and integrity of master cell banks, extended cell banks, complementing cell lines or recombinant cell lines expressing transgenes has to be tested throughout the production process by the vaccine manufacturer. Over the past few years, the traditional methods for evaluation of genetic stability have been replaced with molecular approaches including quantitative PCR, digital PCR and high throughput sequencing...
February 23, 2017: Human Vaccines & Immunotherapeutics
https://www.readbyqxmd.com/read/28333030/semen-quality-before-cryopreservation-and-after-thawing-in-543-patients-with-testicular-cancer
#18
Antonio MacKenna, Javier Crosby, Cristián Huidobro, Eduardo Correa, Gonzalo Duque
OBJECTIVE: The main objective of this study was to assess semen characteristics of patients with testicular cancer before cryopreservation and after thawing, to evaluate the consequences of this technique on sperm quality in patients with testicular cancer. METHODS: Five hundred eighty-nine samples from 543 patients with testicular cancer were cryopreserved between 1995 and 2015, one aliquot per patient was used for a thawing test to assess the impact of cryopreservation on sperm motility; semen analysis was performed before cryo preservation and after thawing, the result interpretation was carried out using the 2010 World Health Organization (WHO) Laboratory Manual, and consent forms were signed by the patients for freezing and when sperm was used for reproductive purposes...
February 1, 2017: JBRA Assisted Reproduction
https://www.readbyqxmd.com/read/28333029/low-concentration-of-hyaluronidase-for-oocyte-denudation-can-improve-fertilization-rates-and-embryo-quality
#19
Bernardo R L de Moura, Mariana C A Gurgel, Suelen Pp Machado, Priscila A Marques, Juliana R Rolim, Marcelo C de Lima, Lister L Salgueiro
OBJECTIVE: Hyaluronidase enzyme is an extremely important factor for the process of oocyte denudation, but little is known about its negative effects. METHODS: This prospective randomized study analyzed the results of using different concentrations of hyaluronidase (Diluted: 8IU/mL and Normal: 80IU/mL) used for denudation of sibling-oocytes for 22 women undergoing treatment for assisted reproduction by ICSI. A total of 192 oocytes were injected, being 104 for group I (diluted) and 88 for group II (normal)...
February 1, 2017: JBRA Assisted Reproduction
https://www.readbyqxmd.com/read/28333023/hyaluronan-binding-system-for-sperm-selection-enhances-pregnancy-rates-in-icsi-cycles-associated-with-male-factor-infertility
#20
Renata F Erberelli, Renato M Salgado, Dirceu H Mendes Pereira, Philip Wolff
OBJECTIVES: The aim of the present study was to compare two procedures for sperm selection in ICSI cycles - conventional morphology sperm selection (ICSI-PVP) and chemical selection through Hyaluronan-treated petri dishes (PICSI), when male factor was associated. METHODS: The evaluated parameters were semen quality, fertilization and cleavage rates, chemical and clinical pregnancy rates, as well as abortion rate. Fifty-six ICSI cycles were included in this report, 19 cycles using PICSI and 37 using conventional ICSI...
February 1, 2017: JBRA Assisted Reproduction
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