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https://www.readbyqxmd.com/read/28214447/influence-of-pressures-up-to-50bar-on-two-stage-anaerobic-digestion
#1
Wolfgang Merkle, Katharina Baer, Jonas Lindner, Simon Zielonka, Felix Ortloff, Frank Graf, Thomas Kolb, Thomas Jungbluth, Andreas Lemmer
The concept of pressurized two-stage anaerobic digestion integrates biogas production, purification and pressure boosting within one process. The produced methane-rich biogas can be fed into gas grids with considerably less purification effort. To investigate biogas production under high pressures up to 50bar, a lab scale two-stage anaerobic digestion system was constructed including one continuously operated pressurized methane reactor. This investigation examined the effects of different operating pressures in methane reactor (10, 25, 50bar) on biogas quantity and quality, pH value and process stability...
February 8, 2017: Bioresource Technology
https://www.readbyqxmd.com/read/28214369/diagnostic-accuracy-of-history-physical-exam-laboratory-tests-and-point-of-care-ultrasound-for-pediatric-acute-appendicitis-in-the-emergency-department-a-systematic-review-and-meta-analysis
#2
Roshanak Benabbas, Mark Hanna, Jay Shah, Richard Sinert
BACKGROUND: Acute appendicitis (AA) is the most common surgical emergency in children. Accurate and timely diagnosis is crucial but challenging due to atypical presentations and the inherent difficulty of obtaining a reliable history and physical examination in younger children. OBJECTIVES: To determine the utility of history, physical exam, laboratory tests, Pediatric Appendicitis Score (PAS) and Emergency Department-Point-of-Care Ultrasound (ED-POCUS) in the diagnosis of AA in ED pediatric patients...
February 18, 2017: Academic Emergency Medicine: Official Journal of the Society for Academic Emergency Medicine
https://www.readbyqxmd.com/read/28210467/diversity-and-distribution-of-culturable-lactic-acid-bacterial-species-in-indonesian-sayur-asin
#3
Wibowo Mangunwardoyo, Abinawanto, Andi Salamah, Endang Sukara, Sulistiani, Achmad Dinoto
BACKGROUND AND OBJECTIVES: Lactic acid bacteria (LAB) play important roles in processing of Sayur Asin (spontaneously fermented mustard). Unfortunately, information about LAB in Indonesian Sayur Asin, prepared by traditional manufactures which is important as baseline data for maintenance of food quality and safety, is unclear. The aim of this study was to describe the diversity and distribution of culturable lactic acid bacteria in Sayur Asin of Indonesia. MATERIALS AND METHODS: Four Sayur Asin samples (fermentation liquor and fermented mustard) were collected at harvesting times (3-7 days after fermentation) from two traditional manufactures in Tulung Agung (TA) and Kediri (KDR), East Java provinces, Indonesia...
August 2016: Iranian Journal of Microbiology
https://www.readbyqxmd.com/read/28209478/algal-bloom-response-and-risk-management-on-site-response-tools
#4
Susan B Watson, Arthur Zastepa, Gregory L Boyer, Eric Matthews
Harmful algal blooms caused by cyanobacteria can present a risk to the safety of drinking- and recreational waters and beachfronts through the production of toxins, particularly microcystin, which are highly resilient to degradation. These blooms are difficult to predict, vary in appearance and toxicity, and can show significant spatial heterogeneity: wind- and current-borne scums can produce an order of magnitude range in toxin levels along shorelines. The growing demand for reliable, cost-effective and rapid methods to detect toxins in bloom material and reduce the risk of public exposure cannot be met by most analytical lab turnaround times...
February 13, 2017: Toxicon: Official Journal of the International Society on Toxinology
https://www.readbyqxmd.com/read/28202038/establishment-of-national-reference-for-bunyavirus-nucleic-acid-detection-kits-for-diagnosis-of-sfts-virus
#5
Xu Lu, Ling Wang, Dongting Bai, Yuhua Li
BACKGROUND: Severe fever with thrombocytopenia syndrome (SFTS) caused by SFTS virus (SFTSV) usually have a high fatality. At present no effective therapy or vaccine are available, so early diagnosis of SFTS is crucial to prevent and control SFTSV infection. This study aimed to establish a national reference for these diagnostic kits of SFTSV genome and make the diagnosis of the disease effective. METHODS: Six SFTSV strains isolated from different regions, and five relative viruses with similar clinical manifestations were selected as positive and negative references and assessed using real time quantitative PCR (q-PCR) using specific primers and probe and two commercial kits...
February 16, 2017: Virology Journal
https://www.readbyqxmd.com/read/28195328/visualization-of-xylem-embolism-by-x-ray-microtomography-a-direct-test-against-hydraulic-measurements
#6
Markus Nolf, Rosana Lopez, Jennifer M R Peters, Richard J Flavel, Leah S Koloadin, Iain M Young, Brendan Choat
X-ray microtomography (microCT) is becoming a valuable noninvasive tool for advancing our understanding of plant-water relations. Laboratory-based microCT systems are becoming more affordable and provide better access than synchrotron facilities. However, some systems come at the cost of comparably lower signal quality and spatial resolution than synchrotron facilities. In this study, we evaluated laboratory-based X-ray microCT imaging as a tool to nondestructively analyse hydraulic vulnerability to drought-induced embolism in a woody plant species...
February 14, 2017: New Phytologist
https://www.readbyqxmd.com/read/28194065/adverse-events-during-apheresis-procedures-audit-at-a-tertiary-hospital
#7
Kanchan Dogra, Parag Fulzele, Diptiranjan Rout, Rahul Chaurasia, Poonam Coshic, Kabita Chatterjee
Apheretic platelets are better quality blood components which reduce donor exposure and chances of TTIs to transfusion recipients when compared to the whole blood derived components. Though safe, these apheretic donations are associated with donor adverse events. We evaluated the incidence of such adverse events associated with the modern apheresis procedures that would provide an insight as well as help formulating preventive steps to avoid frequent occurrences of such events. This prospective audit-based observational study was conducted over 1 year...
March 2017: Indian Journal of Hematology & Blood Transfusion
https://www.readbyqxmd.com/read/28190455/who-s-who-detecting-and-resolving-sample-anomalies-in-human-dna-sequencing-studies-with-peddy
#8
Brent S Pedersen, Aaron R Quinlan
The potential for genetic discovery in human DNA sequencing studies is greatly diminished if DNA samples from a cohort are mislabeled, swapped, or contaminated or if they include unintended individuals. Unfortunately, the potential for such errors is significant since DNA samples are often manipulated by several protocols, labs, or scientists in the process of sequencing. We have developed a software package, peddy, to identify and facilitate the remediation of such errors via interactive visualizations and reports comparing the stated sex, relatedness, and ancestry to what is inferred from the individual genotypes derived from whole-genome (WGS) or whole-exome (WES) sequencing...
January 30, 2017: American Journal of Human Genetics
https://www.readbyqxmd.com/read/28181677/application-of-sensitive-high-resolution-imaging-at-a-commercial-lab-based-x-ray-micro-ct-system-using-propagation-based-phase-retrieval
#9
P Bidola, K Morgan, M Willner, A Fehringer, S Allner, F Prade, F Pfeiffer, K Achterhold
Several dedicated commercial lab-based micro-computed tomography (μCT) systems exist, which provide high-resolution images of samples, with the capability to also deliver in-line phase contrast. X-ray phase contrast is particularly beneficial when visualizing very small features and weakly absorbing samples. The raw measured projections will include both phase and absorption effects. Extending our previous work that addressed the optimization of experimental conditions at the commercial ZEISS Xradia 500 Versa system, single-distance phase-contrast imaging is demonstrated on complex biological and material samples...
February 9, 2017: Journal of Microscopy
https://www.readbyqxmd.com/read/28181598/raman-on-a-disc-high-quality-raman-spectroscopy-in-an-open-channel-on-a-centrifugal-microfluidic-disc
#10
J W Martin, M K Nieuwoudt, M J T Vargas, O L C Bodley, T S Yohendiran, R N Oosterbeek, D E Williams, M Cather Simpson
The implausible combination of centrifugal disc microfluidics and un-covered channels provides a simple way in which Raman spectroscopy can be implemented in industrially-relevant lab-on-a disc technology. Here we demonstrate these advantages by detecting very low concentrations of melamine in liquid milk, without pre-processing, without surface enhancement of the Raman signal and with no evidence of spectral contamination from the polymeric chip itself. A limit of detection (LOD) of 203 ppm for melamine in milk was achieved from Raman spectra of milk after drying...
February 9, 2017: Analyst
https://www.readbyqxmd.com/read/28164580/comparative-study-of-five-commercially-available-saliva-collection-kits-for-dna-extraction
#11
Kathleen Deeley, Jacqueline Noel, Alexandre R Vieira
BACKGROUND: Obtaining DNA samples through saliva samples is becoming more common, and more companies are responding to this demand with saliva collection/DNA extraction kits. METHODS: The University of Pittsburgh's School of Dental Medicine maintains a DNA bank, which our lab helps direct. While we have always used Oragene (DNAGenotek, Kanata, Canada) kits to collect samples in the past, we recently compared 5 alternative kits/methods in an effort to reduce costs while maintaining quality...
September 1, 2016: Clinical Laboratory
https://www.readbyqxmd.com/read/28162028/competency-assessment-in-laboratory-medicine-standardization-and-utility-for-technical-staff-assessment-and-recertification-in-saudi-arabia
#12
Dalal M Nemenqani, Ara Tekian, Yoon Soo Park
PURPOSE: The assessment of technical staff members' competency has been a challenge for laboratory workers, to ensure patient safety and high quality services. The aim of this study was to (1) investigate awareness on best ways to assess lab competencies; (2) identify existing institutional methods of competency assessment and how staff perceptions; and (3) gather opinions of respondents about a proposed program for competency assessment in laboratory medicine. METHODS: A cross-sectional survey was conducted, followed by an interview and discussion with laboratory stakeholders about a proposed competency assessment program that included all the six procedural elements of laboratory personnel competency assessment...
February 5, 2017: Medical Teacher
https://www.readbyqxmd.com/read/28161169/characterization-of-volatile-compounds-in-fermented-milk-using-solid-phase-microextraction-methods-coupled-with-gas-chromatography-mass-spectrometry
#13
T Dan, D Wang, R L Jin, H P Zhang, T T Zhou, T S Sun
Lactic acid bacteria (LAB) are industrially important bacteria that are widely used in the fermented food industry, especially in the manufacture of yogurt. Characteristic flavors are produced by LAB during fermentation and storage that affect the quality and acceptability of fermented milk products. In this study, the volatile compounds in milk fermented by Streptococcus thermophilus IMAU80842 alone, Lactobacillus delbrueckii ssp. bulgaricus IMAU20401 alone, or both species together were identified using solid-phase microextraction methods coupled with gas chromatography-mass spectrometry...
February 1, 2017: Journal of Dairy Science
https://www.readbyqxmd.com/read/28156441/strategy-of-using-herbal-extract-preparations-for-stage-iv-cancer-in-palliative-care-an-enhanced-and-maintenance-therapy
#14
Zhang Lingyan, Zhou Xiaoxia, Yin Weihua, Zhang Xiulian, Liu Hong, Duan Xiaopeng, Yu Cui, Luo Xiaolu, Zhong Qingfeng, Zhao Fen, Li Xianyong
: 89 Background: Palliative care is focused and seems as rationally anti-cancer way that have low systemic toxicity and acceptable effectiveness for stage IV cancer, especially herbal extracted medicines, which can regulate tumor microenviroment and body immune system. Our previous lab studies have indicated that TGF-beta, EGF, VEGF, IL-10 cytokines expression and mico-vessel density can be downgraded in tumor microenviroment by herbal extract preparation from Ginseng, Herba Agrimonia, Hairyvein and Arginine etc...
October 9, 2016: Journal of Clinical Oncology: Official Journal of the American Society of Clinical Oncology
https://www.readbyqxmd.com/read/28156435/sleep-quality-among-inpatients-with-acute-myeloid-leukemia
#15
Kelli Aibel, Ryan Meyerhoff, David Harpole, Amy Pickar Abernethy, Chi-Fu Jeffrey Yang
: 82 Background: Anecdotally, sleep is thought to be a significant problem for inpatients receiving treatment for acute myeloid leukemia (AML), butsleep disturbances in this setting are not well-characterized. We aimed to assess the feasibility of measuring sleep in AML patients using a wearable actigraphy device. METHODS: Using the Actigraph GT3X "watch,"we assessed the total sleep time, sleep onset latency, wake after sleep onset, number of awakenings after sleep onset, and sleep efficiency for inpatients with AML receiving induction chemotherapy during their hospitalization...
October 9, 2016: Journal of Clinical Oncology: Official Journal of the American Society of Clinical Oncology
https://www.readbyqxmd.com/read/28155998/lipids-of-rhodotorula-mucilaginosa-iipl32-with-biodiesel-potential-oil-yield-fatty-acid-profile-fuel-properties
#16
Mahesh Khot, Debashish Ghosh
This study analyzes the single cell oil (SCO), fatty acid profile, and biodiesel fuel properties of the yeast Rhodotorula mucilaginosa IIPL32 grown on the pentose fraction of acid pre-treated sugarcane bagasse as a carbon source. The yeast biomass from nitrogen limiting culture conditions (15.3 g L(-1) ) was able to give the SCO yield of 0.17 g g(-1) of xylose consumed. Acid digestion, cryo-pulverization, direct in situ transesterification, and microwave assisted techniques were evaluated in comparison to the Soxhlet extraction for the total intracellular yeast lipid recovery...
February 3, 2017: Journal of Basic Microbiology
https://www.readbyqxmd.com/read/28152949/improving-screening-and-prophylaxis-of-hepatitis-b-in-immunosuppressed-patients
#17
Violeta Rabrenovich, David M Baer, Joanne E Schottinger
: 139 Background: Kaiser Permanente (KP) is an integrated health care delivery system that provides clinical services to over 10 million members in nine states and the District of Columbia. Since 2007, KP oncology community collaborates at the national level to systematically improve safety and quality of care. Our improvements are accelerated by rapid adoption of evidence based protocols, leveraging of EMR and integration of quality improvement methods into clinical operations. METHODS: KP created a team that included oncologists, hepatologists, rheumatologist, pharmacy, and quality improvement experts to evaluate safety of existing practice...
March 2016: Journal of Clinical Oncology: Official Journal of the American Society of Clinical Oncology
https://www.readbyqxmd.com/read/28152925/time-stamps-used-to-measure-the-patient-s-clinic-experience
#18
Roy Brown, Gay Riegel, Lalan S Wilfong, John Russell Hoverman
: 150 Background: In 2013, a patient reported satisfaction survey indicated 19% of patients waited 20-40 minutes, 8% 40-60 minutes and 4% over 1 hour. We initiated a project to objectively quantify the components of wait times to investigate opportunities for improvement. METHODS: Utilizing existing technology in the practice management system, clinic staff use the Day List feature to capture time stamps as patients move through the clinic. We focused on provider appointments but these visits could also include business office, labs, infusion and diagnostics...
March 2016: Journal of Clinical Oncology: Official Journal of the American Society of Clinical Oncology
https://www.readbyqxmd.com/read/28152853/oncologists-opinions-and-experiences-with-electronic-release-of-radiology-and-pathology-results-to-patients
#19
Farnoosh Sheikhi, Eben Lloyd Rosenthal, Christopher Sharp, Mark K Buyyounouski, Steve Asch
: 162 Background: There is an emerging standard to provide patients rapid electronic access to elements of their medical records,; this practice is controversial among practicing oncologists. Previous studies have primarily reported on patient access to physician notes and lab tests in primary care. In oncology, the emotional import and complexity of the results may be greater, particularly for staging imaging and biopsies. We report the opinions and experiences of oncologists after enabling patient access to radiology and pathology results for four months during which time finalized results were released upon physician action or after seven days...
March 2016: Journal of Clinical Oncology: Official Journal of the American Society of Clinical Oncology
https://www.readbyqxmd.com/read/28152808/ambulatory-redesign-strategies-for-quality-improvement-in-patient-care
#20
Catherine A Lyons, Nancy Smith, Maureen McGlennon, Terri L Parker, Carolyn Truini, Maureen Major-Campos, Jill Lacy, Karen Michaels, Vanna Dest, Richard Lisitano, Kerin B Adelson, Rogerio Lilenbaum
: 85 Background: Growing outpatient volume poses patient flow challenges, making it difficult to accommodate the complexities of academic medical practice. Volume increases create operational inefficiencies like delays in lab turnaround time (TAT) and limited rooming capacity resulting in delays in patient access and reduced provider productivity. These bottlenecks negatively impact patient satisfaction. METHODS: Four multidisciplinary teams assessed barriers to patient flow in the lab, rooming and scheduling process...
March 2016: Journal of Clinical Oncology: Official Journal of the American Society of Clinical Oncology
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