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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/28202362/effects-of-crude-extracts-of-a-saxitoxin-producer-strain-of-the-cyanobacterium-cylindrospermopsis-raciborskii-on-the-swimming-behavior-of-wild-and-laboratory-reared-guppy-poecilia-vivipara
#2
Karina C Lopes, Aloysio da S Ferrão-Filho, Everton G N Dos Santos, Rodolfo A Cunha, Cláudia P Santos
The cyanobacterium Cylindrospermopsis raciborskii is an invasive species in water supply reservoirs worldwide, which can produces cylindrospermopsins and saxitoxins. In the wild, guppy (Poecilia vivipara) can be exposed to cyanotoxins, but those born and reared in laboratory are free of this contact. The aim of this paper was to comparatively measure the locomotor activity of 'wild' and 'lab' P. vivipara before and after exposure to crude extracts of two different cultures of C. raciborskii (CYRF-01), a saxitoxin-procucer strain...
February 12, 2017: Toxicon: Official Journal of the International Society on Toxinology
https://www.readbyqxmd.com/read/28193051/glutathione-modified-gold-nanoparticles-for-sensitive-colorimetric-detection-of-pb-2-ions-in-rainwater-polluted-by-leaking-perovskite-solar-cells
#3
Yaming Yu, Ying Hong, Peng Gao, Mohammad Khaja Nazeeruddin
In the past few years, the advent of lead halide perovskite solar cells (PSCs) has revolutionized the prospects of the third- generation photovoltaics and the reported power conversion efficiency (PCE) has been updated to 22%. Nevertheless, two main challenges, including the poisonous content of Pb and the vexing instability toward water, still lie between the lab-based PSCs technology and large scale commercialization. With this background, we first evaluated Pb(2+) concentration from the rainwater samples polluted by three types of markets promising PSCs with inductively coupled plasma mass spectrometry measurements (ICP-MS) as a case study...
December 20, 2016: Analytical Chemistry
https://www.readbyqxmd.com/read/28191731/right-ventricular-systolic-function-in-hypoplastic-left-heart-syndrome-a-comparison-of-manual-and-automated-software-to-measure-fractional-area-change
#4
Hanna K Ruotsalainen, Hannah R Bellsham-Revell, Aaron J Bell, Jaana I Pihkala, Tiina H Ojala, John M Simpson
BACKGROUND: Quantitative echocardiographic assessment of right ventricular function is important in children with hypoplastic left heart syndrome (HLHS). The aim of this study was to examine the repeatability of different echocardiographic techniques, both manual and automated, to measure fractional area change (FAC) in patients with HLHS and to correlate these measurements with magnetic resonance imaging (MRI)-derived ejection fraction (EF). METHODS: Fifty-one children with HLHS underwent transthoracic echocardiography and cardiac MRI under the same general anesthetic as part of routine inter-stage assessment...
February 13, 2017: Echocardiography
https://www.readbyqxmd.com/read/28185678/in-vitro-fatigue-and-fracture-testing-of-cad-cam-materials-in-implant-supported-molar-crowns
#5
Verena Preis, Sebastian Hahnel, Michael Behr, Laila Bein, Martin Rosentritt
OBJECTIVE: To investigate the fatigue and fracture resistance of different CAD/CAM-materials as implant- or tooth-supported molar crowns with respect to the clinical procedure (screwed/bonded restoration). METHODS: 168 crowns were fabricated from different CAD/CAM-materials (n=8/material): ZLS (zirconia-reinforced lithium silicate ceramic; Suprinity, Vita-Zahnfabrik), COB (composite; Brilliant Crios, Coltene), COL (composite; Lava Ultimate, 3M Espe), PMV/PPV (polyether ether ketone (PEEK)+milled composite veneer/composite paste veneer; BioHPP+HIPC veneer/Crealign veneer, Bredent), COH (composite; Block HC, Shofu), and ZIR (zirconia; IPS e...
February 6, 2017: Dental Materials: Official Publication of the Academy of Dental Materials
https://www.readbyqxmd.com/read/28185184/acquisition-and-post-processing-of-immunohistochemical-images
#6
Jerry Sedgewick
Augmentation of digital images is almost always a necessity in order to obtain a reproduction that matches the appearance of the original. However, that augmentation can mislead if it is done incorrectly and not within reasonable limits. When procedures are in place for insuring that originals are archived, and image manipulation steps reported, scientists not only follow good laboratory practices, but avoid ethical issues associated with post processing, and protect their labs from any future allegations of scientific misconduct...
2017: Methods in Molecular Biology
https://www.readbyqxmd.com/read/28184173/reliability-of-inertial-sensors-in-the-assessment-of-patients-with-vestibular-disorders-a-feasibility-study
#7
Sathish K Sankarpandi, Alice J Baldwin, Jaydip Ray, Claudia Mazzà
BACKGROUND: Vestibular disorders affect an individual's stability, balance, and gait and predispose them to falls. Traditional laboratory-based semi-objective vestibular assessments are intrusive and cumbersome provide little information about their functional ability. Commercially available wearable inertial sensors allow us to make this real life assessments objective, with a detailed view of their functional abilities. Timed Up and Go (TUG) and Postural Sway tests are commonly used tests for gait and balance assessments...
2017: BMC Ear, Nose, and Throat Disorders
https://www.readbyqxmd.com/read/28182858/effect-of-exercise-induced-dehydration-on-circulatory-markers-of-oxidative-damage-and-antioxidant-capacity
#8
Vincent P Georgescu, Tacito P Souza-Junior, Christian Behrens, Marcelo P Barros, Carlos Alves Bueno, Alan C Utter, Lisa S McAnulty, Steven R McAnulty
Dehydration is a common event associated with exercise. However, few studies have examined the effects of dehydration on plasma redox status in humans. Eighty-two athletes were recruited and had Baseline anthropometrics and blood samples obtained. Athletes then engaged in a dehydration protocol, training until 3% of pre-weight body mass was lost. Athletes returned to the lab and had Post-dehydration blood collected. Athletes then consumed an isotonic drink until pre-exercise body weight was reestablished. Blood was then recollected (1-h post-full rehydration (PFR))...
February 9, 2017: Applied Physiology, Nutrition, and Metabolism, Physiologie Appliquée, Nutrition et Métabolisme
https://www.readbyqxmd.com/read/28178599/the-targeted-eosinophil-lowering-effects-of-dexpramipexole-in-clinical-studies
#9
Steven I Dworetzky, Gregory T Hebrank, Donald G Archibald, Ian J Reynolds, Wildon Farwell, Michael E Bozik
Dexpramipexole, an orally bioavailable small molecule previously under clinical development in amyotrophic lateral sclerosis, was observed during routine safety hematology monitoring to demonstrate pronounced, dose- and time-dependent eosinophil-lowering effects, with minor reductions on other leukocyte counts. Analysis of hematology lab values across two double-blind, randomized placebo-controlled clinical trials at total daily doses ranging from 50mg to 300mg demonstrated that dexpramipexole consistently and markedly lowered peripheral blood eosinophils...
January 16, 2017: Blood Cells, Molecules & Diseases
https://www.readbyqxmd.com/read/28165801/use-of-polyvalent-equine-anti-viper-serum-to-treat-delayed-coagulopathy-due-to-suspected-sistrurus-miliarius-streckeri-envenomation-in-two-children
#10
Kristie L Williams, Megan Woslager, Stephanie L Garland, Roger P Barton, William Banner
BACKGROUND: Western Pygmy Rattlesnake (WPR) envenomation reportedly causes refractory and persistent coagulopathy when treated with CroFab(®) (Crotalidae Polyvalent Immune Fab). We report two cases where polyvalent equine anti-viper serum (AntivipmynTRI(®)) was used to treat recurrent coagulopathy in children. CASE DETAILS: The first patient was a 16-month-old male who was bitten by a confirmed WPR. The patient received a total of 18 vials of CroFab(®). His labs normalized, swelling gradually improved, and the child was discharged to home...
February 6, 2017: Clinical Toxicology
https://www.readbyqxmd.com/read/28162901/generation-and-composition-of-medical-wastes-from-private-medical-microbiology-laboratories
#11
Dimitrios Komilis, Nikolaos Makroleivaditis, Eftychia Nikolakopoulou
A study on the generation rate and the composition of solid medical wastes (MW) produced by private medical microbiology laboratories (PMML) was conducted in Greece. The novelty of the work is that no such information exists in the literature for this type of laboratories worldwide. Seven laboratories were selected with capacities that ranged from 8 to 88 examinees per day. The study lasted 6months and daily recording of MW weights was done over 30days during that period. The rates were correlated to the number of examinees, examinations and personnel...
February 2, 2017: Waste Management
https://www.readbyqxmd.com/read/28160698/how-do-operating-conditions-affect-as-iii-removal-by-iron-electrocoagulation
#12
Caroline Delaire, Susan Amrose, Minghui Zhang, James Hake, Ashok Gadgil
Iron electrocoagulation (Fe-EC) has been shown to effectively remove arsenic from contaminated groundwater at low cost and has the potential to improve access to safe drinking water for millions of people. Understanding how operating conditions, such as the Fe dosage rate and the O2 recharge rate, affect arsenic removal at different pH values is crucial to maximize the performance of Fe-EC under economic constraints. In this work, we improved upon an existing computational model to investigate the combined effects of pH, Fe dosage rate, and O2 recharge rate on arsenic removal in Fe-EC...
January 18, 2017: Water Research
https://www.readbyqxmd.com/read/28155714/pretata-predicting-tata-binding-proteins-with-novel-features-and-dimensionality-reduction-strategy
#13
Quan Zou, Shixiang Wan, Ying Ju, Jijun Tang, Xiangxiang Zeng
BACKGROUND: It is necessary and essential to discovery protein function from the novel primary sequences. Wet lab experimental procedures are not only time-consuming, but also costly, so predicting protein structure and function reliably based only on amino acid sequence has significant value. TATA-binding protein (TBP) is a kind of DNA binding protein, which plays a key role in the transcription regulation. Our study proposed an automatic approach for identifying TATA-binding proteins efficiently, accurately, and conveniently...
December 23, 2016: BMC Systems Biology
https://www.readbyqxmd.com/read/28152925/time-stamps-used-to-measure-the-patient-s-clinic-experience
#14
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/28152674/understanding-disease-progression-and-treatment-patterns-in-metastatic-breast-colorectal-and-lung-cancer-implications-for-evaluating-value-and-quality-of-care
#15
Stacey DaCosta Byfield, Timothy Bancroft, Amy J Anderson, Carolina M Reyes, Arliene Ravelo, Sarika Ogale, Matthew J Matasar, May C Chen
: 24 Background: Impact of strategies for evaluating value and quality of cancer care may vary for patients with metastatic tumors, particularly for strategies considering lines of treatment therapy as distinct events. To aid in evaluating the value and quality of care in patients' overall trajectory of disease, this study examined disease progression, mortality, hospice, and treatment patterns in patients (pts) with metastatic breast (mBC), lung (mLC), and colorectal cancers (mCRC). METHODS: Included were commercially insured and Medicare Advantage adults from a large US health plan administrative claims database (2007-2014); pts had ≥ 2 claims for BC, CRC, or LC, and ≥ 2 claims for metastases...
March 2016: Journal of Clinical Oncology: Official Journal of the American Society of Clinical Oncology
https://www.readbyqxmd.com/read/28151452/reference-intervals-for-common-biochemistry-laboratory-tests-in-the-saudi-population-by-a-direct-a-priori-method
#16
Xuejiao L Hu, Huda Hassan, Fouad Hassan Al-Dayel
BACKGROUND: Reference intervals (RI) for biochemistry laboratory tests are now based on Caucasian rather than Saudi populations. Test parameters may vary because of race, lifestyle, population structure and geographic location. OBJECTIVES: To establish reference intervals for common clinical chemistry laboratory tests for the Saudi population. DESIGN: Direct a priori method. SETTING: Tertiary care hospital. MATERIALS AND METHODS: Blood samples were taken from 625 individuals aged from 2 to 87 years from different geographic areas for 93 biochemistry tests...
January 2017: Annals of Saudi Medicine
https://www.readbyqxmd.com/read/28150972/a-novel-training-approach-to-activate-alternative-behaviors-for-smoking-in-depressed-smokers
#17
Catalina Kopetz, Laura MacPherson, Avery D Mitchell, Alexandra N Houston-Ludlam, Reinout W Wiers
The current research developed and tested a novel training strategy to alter the implicit associations between alternative behaviors to smoking and negative affect, and explored its effects on depressive symptoms and on smoking behavior as part of a quit attempt. Using a joystick, participants identified as smokers with depressive symptoms were trained to approach alternative behaviors to smoking in the context of negative affect. Specifically, in the experimental condition, participants were trained to avoid smoking-related targets and to approach alternative activities...
February 2017: Experimental and Clinical Psychopharmacology
https://www.readbyqxmd.com/read/28148254/building-trust-and-rapport-early-in-the-new-doctor-patient-relationship-a-longitudinal-qualitative-study
#18
Bich N Dang, Robert A Westbrook, Sarah M Njue, Thomas P Giordano
BACKGROUND: New patients are a particularly vulnerable population because they are at high risk of missing a subsequent visit or dropping out of care completely. However, few data exist on what new patients value in the beginning of a relationship with a new provider. Persons with HIV infection may be an ideal population to study the drivers of a positive initial patient-provider relationship, as it is a chronic and serious condition that requires a reliable, ongoing relationship with a provider...
February 2, 2017: BMC Medical Education
https://www.readbyqxmd.com/read/28141677/the-unique-inflammatory-bowel-disease-phenotype-of-pediatric-primary-sclerosing-cholangitis-a-single-center-study
#19
Henry Shiau, Faith D Ihekweazu, Mansi Amin, Tatiana Fofanova, Tamir Miloh, Richard Kellermayer
BACKGROUND: In adults, primary sclerosing cholangitis (PSC), a cholestatic liver disease characterized by inflammation/fibrosis of intra/extra-hepatic bile ducts, associates with a milder form of inflammatory bowel disease (IBD), particularly ulcerative colitis (UC). The pediatric PSC-IBD phenotype is less well characterized. METHODS: We performed a retrospective, single-center study examining PSC-IBD patients at Texas Children's Hospital (TCH) between 2000-2015...
January 28, 2017: Journal of Pediatric Gastroenterology and Nutrition
https://www.readbyqxmd.com/read/28127860/investigation-of-the-bindings-of-a-class-of-inhibitors-with-gsk3%C3%AE-kinase-using-thermodynamic-integration-md-simulation-and-kinase-assay
#20
Chia-Jen Hsu, Wen-Chi Hsu, Der-Jay Lee, An-Lun Liu, Chia-Ming Chang, Huei-Jhen Shih, Wun-Han Huang, Guey-Jen Lee-Chen, Hsiu Mei Hsieh-Li, Guan-Chiun Lee, Ying-Chieh Sun
GSK3β kinase is a noteworthy target for discovery of the drugs that will be used to treat several diseases. In the effort to identify a new inhibitor lead compound, we utilized thermodynamic integration (TI)-molecular dynamics (MD) simulation and kinase assay to investigate the bindings between GSK3β kinase and 5 compounds that were analogous to a known inhibitor with an available crystal structure. TI-MD simulations of the first two compounds (analogs 1 and 2) were used for calibration. The computed binding affinities of analogs 1 and 2 agreed well with the experimental results...
January 27, 2017: Chemical Biology & Drug Design
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