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https://www.readbyqxmd.com/read/28724252/effect-of-operating-conditions-on-speciation-and-bioavailability-of-trace-metals-in-submerged-anaerobic-membrane-bioreactors
#1
Pham Minh Thanh, Balachandran Ketheesan, Yan Zhou, David C Stuckey
This study investigated the effect of changes in pH (7, 6.5 and 6), hydraulic retention time (HRT) (6h, 4h, and 2h), solids retention time (SRT) (100d and 25d) on the speciation of trace metals (TMs) in submerged anaerobic membrane bioreactors (SAMBRs). The results showed that the metal retention capacity of SAMBRs reduced when the pH, HRT and SRT were reduced i.e. up to 21.9%, 39.1%, and 17.1%, respectively, but it was also found that the speciation of these TMs generally shifted towards highly bioavailable fractions i...
July 8, 2017: Bioresource Technology
https://www.readbyqxmd.com/read/28718051/coronary-heart-disease-preoperative-gesture-interactive-diagnostic-system-based-on-augmented-reality
#2
Yi-Bo Zou, Yi-Min Chen, Ming-Ke Gao, Quan Liu, Si-Yu Jiang, Jia-Hui Lu, Chen Huang, Ze-Yu Li, Dian-Hua Zhang
Coronary heart disease preoperative diagnosis plays an important role in the treatment of vascular interventional surgery. Actually, most doctors are used to diagnosing the position of the vascular stenosis and then empirically estimating vascular stenosis by selective coronary angiography images instead of using mouse, keyboard and computer during preoperative diagnosis. The invasive diagnostic modality is short of intuitive and natural interaction and the results are not accurate enough. Aiming at above problems, the coronary heart disease preoperative gesture interactive diagnostic system based on Augmented Reality is proposed...
August 2017: Journal of Medical Systems
https://www.readbyqxmd.com/read/28716370/a-systematic-review-and-framework-for-the-use-of-hormone-therapy-with-salvage-radiation-therapy-for-recurrent-prostate-cancer
#3
REVIEW
Daniel E Spratt, Robert T Dess, Zachary S Zumsteg, Daniel W Lin, Phuoc T Tran, Todd M Morgan, Emmanuel S Antonarakis, Paul L Nguyen, Charles J Ryan, Howard M Sandler, Matthew R Cooperberg, Edwin Posadas, Felix Y Feng
CONTEXT: Salvage radiotherapy (SRT) is a standard of care for men who recur postprostatectomy, and recent randomized trials have assessed the benefit and toxicity of adding hormone therapy (HT) to SRT with differing results. OBJECTIVE: To perform a systematic review of randomized phase III trials of the use of SRT ± HT and generate a framework for the use of HT with SRT. EVIDENCE ACQUISITION: Systematic literature searches were conducted on February 15, 2017 in three databases (MEDLINE [via PubMed], EMBASE, and ClinicalTrials...
July 14, 2017: European Urology
https://www.readbyqxmd.com/read/28712337/overall-effect-of-carbon-production-and-nutrient-release-in-sludge-holding-tank-on-mainstream-biological-nutrient-removal-efficiency
#4
Pouria Jabari, Qiuyan Yuan, Jan A Oleszkiewicz
The objective of this study was to assess the potential of hydrolysis/fermentation of activated sludge in sludge holding tank (SHT) to produce additional carbon for biological nutrient removal (BNR) process. The study was conducted in anaerobic batch tests using the BNR sludge (from a full-scale Westside process) and the mixture of BNR sludge with conventional non-BNR activated sludge (to have higher biodegradable particulate COD (bpCOD) in sludge). At different times during the batch tests the nutrient release, filtered COD (FCOD) production and polyphosphate (poly-P) and aerobic phosphorous uptake of sludge were measured...
July 17, 2017: Environmental Technology
https://www.readbyqxmd.com/read/28712332/comparison-of-commercial-baker-s-yeast-versus-bacteria-based-membrane-bioreactors-for-landfill-leachate-treatment
#5
M C S Amaral, G C B Brito, B G Reis, L C Lange, W G Moravia
This paper compares the performance of the membrane bioreactor (MBR) inoculated with commercial baker's yeast (Saccharomyces cerevisiae) (MBRy) versus one inoculated with bacterial sludge (MBRb) for treatment of landfill leachate (LFL). The MBRb and MBRy were operated with a hydraulic retention time (HRT) of 48 h, solids retention time (SRT) of 60 d, and specific air demand based on membrane area (SADm) of 0.6 m(3) h(-1) m(-2). The MBRy was more efficient in removing COD (68 ± 12%), color (79 ± 8%), ammoniacal nitrogen (58 ± 18%), and phosphorus (62 ± 19%) compared to MBRb, which showed removal efficiencies of 44 ± 18%, 46 ± 20%, 45 ± 17%, and 29 ± 15% for COD, color, ammoniacal nitrogen, and phosphorus...
July 17, 2017: Environmental Technology
https://www.readbyqxmd.com/read/28707179/the-grades-that-clinical-teachers-give-students-modifies-the-grades-they-receive
#6
Michael Paget, Gurbir Brar, Pamela Veale, Kevin Busche, Sylvain Coderre, Wayne Woloschuk, Kevin McLaughlin
Prior studies have shown a correlation between the grades students receive and how they rate their teacher in the classroom. In this study, the authors probe this association on clinical rotations and explore potential mechanisms. All In-Training Evaluation Reports (ITERs) for students on mandatory clerkship rotations from April 1, 2013 to January 31, 2015 were matched with the corresponding student's rating of their teacher (SRT). The date and time that ITERs and SRTs were submitted was used to divide SRTs into those submitted before versus after the corresponding ITER was submitted...
July 13, 2017: Advances in Health Sciences Education: Theory and Practice
https://www.readbyqxmd.com/read/28703275/predictors-of-cognitive-function-in-patients-with-hypothalamic-hamartoma-following-stereotactic-radiofrequency-thermocoagulation-surgery
#7
Masaki Sonoda, Hiroshi Masuda, Hiroshi Shirozu, Yosuke Ito, Kohei Akazawa, Eishi Asano, Shigeki Kameyama
OBJECTIVE: To determine the predictors of cognitive function in patients with drug-resistant gelastic seizures (GS) related to hypothalamic hamartoma (HH) before and after stereotactic radiofrequency thermocoagulation surgery (SRT). METHODS: We studied 88 patients with HH who underwent SRT between October 1997 and December 2014. Patients received neuropsychological tests preoperatively and postoperatively. Based on the preoperative measures, patients were categorized as "high-functioning" (full-scale intelligence quotient [FSIQ] ≥70; n = 48) and "low-functioning" group (FSIQ <70; n = 40)...
July 13, 2017: Epilepsia
https://www.readbyqxmd.com/read/28702360/treatment-of-profound-thrombocytopenia-in-a-patient-with-gaucher-disease-type-1-is-there-a-role-for-substrate-reduction-therapy
#8
Christine I Ha, Stephanie DeArmey, Heidi Cope, Mugdha Rairikar, Priya S Kishnani
The availability of three enzyme replacement therapy (ERT) drugs and two substrate reduction therapy (SRT) drugs to treat Gaucher disease provides an opportunity to tailor therapies to a patient's specific clinical concerns. However, there is a gap in the literature regarding individual drug effectiveness in treating particular symptoms and the potential benefits of combination treatment. This report details treatment of a patient with Gaucher disease type 1 whose main clinical concern was profound thrombocytopenia (around 20 × 10(9)/L, normal range: 150-450 × 10(9)/L) with several episodes of bleeding with minimal trauma and bruises...
September 2017: Molecular Genetics and Metabolism Reports
https://www.readbyqxmd.com/read/28701665/the-clinical-applications-of-polymer-gel-dosimetry-using-mri
#9
Kaoru Ono
Polymer gel dosimeters are devices that utilize the radiation-induced polymerization reactions of vinyl monomers in a gel to store information of radiation dose. They have some advantages over other dosimeters as the visual conformation and the direct read-out of three-dimensional (3D) radiation dose information for the dosimetric verification of intensity modulated radiotherapy (IMRT), volumetric modulated arc therapy (VMAT), and stereotactic radiotherapy (SRT) with steep dose gradients. In this report, the dosimetric uncertainties and potential for clinical applications of polymer gel dosimetry by the in-house developed 3D dose verification system for IMRT and VMAT QA is outlined...
2017: Japanese Journal of Medical Physics
https://www.readbyqxmd.com/read/28695749/the-use-of-cochlear-s-scan-and-wireless-microphones-to-improve-speech-understanding-in-noise-with-the-nucleus6%C3%A2-cp900-processor
#10
Geert De Ceulaer, David Pascoal, Filiep Vanpoucke, Paul J Govaerts
OBJECTIVES: The newest Nucleus CI processor, the CP900, has two new options to improve speech-in-noise perception: (1) use of an adaptive directional microphone (SCAN mode) and (2) wireless connection to MiniMic1 and MiniMic2 wireless remote microphones. DESIGN: An analysis was made of the absolute and relative benefits of these technologies in a real-world mimicking test situation. Speech perception was tested using an adaptive speech-in-noise test (sentences-in-babble noise)...
July 11, 2017: International Journal of Audiology
https://www.readbyqxmd.com/read/28693798/brain-metastases-from-non-small-cell-lung-carcinoma-changing-concepts-for-improving-patients-outcome
#11
REVIEW
Chloé Rancoule, Alexis Vallard, Jean-Baptiste Guy, Sophie Espenel, Peng Diao, Cyrus Chargari, Nicolas Magné
The management of Non Small Cell Lung Cancer (NSCLC) brain metastases is challenging, as this frequent complication negatively impacts patients' quality of life, and can be a life-threatening event. Through a review of the literature, we discuss the main therapeutic options and the recent developments that improved (and complicated) the management of NSCLC brain metastases patients. Most current validated approaches are local with exclusive or combined surgery, whole brain radiotherapy (WBRT) and stereotactic radiotherapy (SRT)...
August 2017: Critical Reviews in Oncology/hematology
https://www.readbyqxmd.com/read/28693622/prevention-and-treatment-of-long-term-social-disability-amongst-young-people-with-emerging-severe-mental-illness-with-social-recovery-therapy-the-prodigy-trial-study-protocol-for-a-randomised-controlled-trial
#12
David Fowler, Paul French, Robin Banerjee, Garry Barton, Clio Berry, Rory Byrne, Timothy Clarke, Rick Fraser, Brioney Gee, Kathryn Greenwood, Caitlin Notley, Sophie Parker, Lee Shepstone, Jon Wilson, Alison R Yung, Joanne Hodgekins
BACKGROUND: Young people who have social disability associated with severe and complex mental health problems are an important group in need of early intervention. Their problems often date back to childhood and become chronic at an early age. Without intervention, the long-term prognosis is often poor and the economic costs very large. There is a major gap in the provision of evidence-based interventions for this group, and therefore new approaches to detection and intervention are needed...
July 11, 2017: Trials
https://www.readbyqxmd.com/read/28688567/factors-influencing-hearing-outcomes-in-pediatric-patients-undergoing-ossicular-chain-reconstruction
#13
Nandini Govil, Thomas M Kaffenberger, Amber D Shaffer, David H Chi
OBJECTIVE: Ossicular chain disruption in children leads to conductive hearing loss. Few studies have focused on factors influencing successful results in pediatric ossicular chain reconstruction (OCR). We aim to determine whether demographic or surgical factors affect hearing outcomes in pediatric OCR. METHODS: We conducted a retrospective chart review of 120 patients undergoing OCR at our institution, a tertiary care hospital, between 2003 and 2014, with median length of follow-up of 2...
August 2017: International Journal of Pediatric Otorhinolaryngology
https://www.readbyqxmd.com/read/28688548/eeg-activity-as-an-objective-measure-of-cognitive-load-during-effortful-listening-a-study-on-pediatric-subjects-with-bilateral-asymmetric-sensorineural-hearing-loss
#14
Pasquale Marsella, Alessandro Scorpecci, Giulia Cartocci, Sara Giannantonio, Anton Giulio Maglione, Isotta Venuti, Ambra Brizi, Fabio Babiloni
OBJECTIVES: Deaf subjects with hearing aids or cochlear implants generally find it challenging to understand speech in noisy environments where a great deal of listening effort and cognitive load are invested. In prelingually deaf children, such difficulties may have detrimental consequences on the learning process and, later in life, on academic performance. Despite the importance of such a topic, currently, there is no validated test for the assessment of cognitive load during audiological tasks...
August 2017: International Journal of Pediatric Otorhinolaryngology
https://www.readbyqxmd.com/read/28680546/evaluation-of-the-marginal-and-internal-gaps-of-three-different-dental-prostheses-comparison-of-the-silicone-replica-technique-and-three-dimensional-superimposition-analysis
#15
Jin-Young Park, So-Yeon Bae, Jae-Jun Lee, Ji-Hwan Kim, Hae-Young Kim, Woong-Chul Kim
PURPOSE: The purposes of this study were to evaluate the marginal and internal gaps, and the potential clinical applications of three different methods of dental prostheses fabrication, and to compare the prostheses prepared using the silicone replica technique (SRT) and those prepared using the three-dimensional superimposition analysis (3DSA). MATERIALS AND METHODS: Five Pekkton, lithium disilicate, and zirconia crowns were each manufactured and tested using both the SRT and the two-dimensional section of the 3DSA...
June 2017: Journal of Advanced Prosthodontics
https://www.readbyqxmd.com/read/28679357/genome-scale-analysis-of-regulatory-protein-acetylation-enzymes-from-photosynthetic-eukaryotes
#16
R Glen Uhrig, Pascal Schläpfer, Devang Mehta, Matthias Hirsch-Hoffmann, Wilhelm Gruissem
BACKGROUND: Reversible protein acetylation occurring on Lys-N(e) has emerged as a key regulatory post-translational modification in eukaryotes. It is mediated by two groups of enzymes: lysine acetyltransferases (KATs) and lysine deacetylases (KDACs) that catalyze the addition and removal of acetyl groups from target proteins. Estimates indicate that protein acetylation is second to protein phosphorylation in abundance, with thousands of acetylated sites now identified in different subcellular compartments...
July 5, 2017: BMC Genomics
https://www.readbyqxmd.com/read/28675051/impact-of-sludge-retention-time-on-mbr-fouling-role-of-extracellular-polymeric-substances-determined-through-membrane-autopsy
#17
Ana F Silva, Silvia Antunes, Filomena Freitas, Gilda Carvalho, Maria A M Reis, Maria T Barreto Crespo
The impact of sludge retention time (SRT) on the biofouling of a membrane bioreactor (MBR) by extracellular polymeric substances (EPS) was investigated. The MBR was operated at 60 and 20 d SRT. The gel layer (recovered through optimized membrane autopsy methods) and the cake layer were analyzed for their content and profile of EPS proteins and polysaccharides. The change to a shorter SRT led to decreased membrane filterability, concomitant with a higher expression of EPS proteins in the cake layer, which were identified as being mainly related with biosynthesis and stress functions...
July 4, 2017: Biofouling
https://www.readbyqxmd.com/read/28668740/bacterial-diversity-and-population-shifts-driven-by-spotlight-wastewater-micropollutants-in-low-temperature-highly-nitrifying-activated-sludge
#18
Antonina Kruglova, Alejandro Gonzalez-Martinez, Matilda Kråkström, Anna Mikola, Riku Vahala
In this study the influence of low-temperature (8°C), sludge retention time (SRT) and loading of spotlight wastewater micropollutants (MPs) on bacterial community of activated sludge was investigated with a special focus on nitrification. Two Sequencing batch reactors (SBR) and two membrane bioreactors (MBR) were operated with synthetic municipal-like wastewater receiving and not receiving ibuprofen, diclofenac, estrone and 17α-ethynylestradiol (EE2). Bacterial population studies were related to removal efficiencies of studied MPs...
June 29, 2017: Science of the Total Environment
https://www.readbyqxmd.com/read/28667597/stereotactic-radiotherapy-as-primary-definitive-or-postoperative-treatment-of-intracranial-meningioma-of-who-grade-ii-and-iii-leads-to-better-disease-control-than-stereotactic-radiotherapy-of-recurrent-meningioma
#19
Dorota Lubgan, Sandra Rutzner, Ulrike Lambrecht, Karl Rössler, Michael Buchfelder, Ilker Eyüpoglu, Rainer Fietkau, Sabine Semrau
The aim of this study was to evaluate long-term clinical outcome, prognostic factors and quality of life after adjuvant or definitive fractionated stereotactic radiotherapy (SRT) of meningioma WHO grade II and III or at recurrence. 131 patients with 138 meningioma (64 WHO grade II, 16 WHO grade III, 58 without histology) of the skull base, falx and convexity were treated between 01/2002 and 01/2015 at the Erlangen University Hospital by fractionated stereotactic radiotherapy (SRT) as primary treatment (adjuvant or definitive) and at recurrence...
June 30, 2017: Journal of Neuro-oncology
https://www.readbyqxmd.com/read/28667448/adjuvant-versus-salvage-radiotherapy-in-prostate-cancer-multi-institutional-retrospective-analysis-of-the-spanish-recap-database
#20
A Hervás, A Gómez-Caamaño, M Casaña, A Gómez-Iturriaga, J Pastor, J Jove, J L Mengual, C Gónzalez-San Segundo, J Muñoz
PURPOSE: To compare adjuvant radiotherapy (ART) to salvage radiotherapy (SRT) after radical prostatectomy (RP) in a cohort of prostate cancer (PCa) patients. The primary aim was to comparatively assess 2- and 5-year biochemical relapse-free survival (BRFS). A secondary aim was to identify predictors of survival. PATIENTS AND METHODS: Data were acquired from the RECAP database, a population-based prostate cancer registry in Spain. Inclusion criteria included RP (with or without lymphadenectomy) followed by ART or SRT...
June 30, 2017: Clinical & Translational Oncology
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