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https://www.readbyqxmd.com/read/29350114/the-influence-of-solid-retention-time-on-ifas-mbr-systems-analysis-of-system-behaviour
#1
Giorgio Mannina, Marco Capodici, Alida Cosenza, Daniele Di Trapani, Gaspare Viviani
A University of Cape Town Integrated Fixed-Film Activated Sludge Membrane Bioreactor (UCT-IFAS-MBR) pilot plant was operated at different values of the sludge retention time (SRT). Three SRTs were investigated at different durations: indefinitely, 30 and 15 days. The organic carbon, nitrogen and phosphorus removal, kinetic/stoichiometric parameters, membrane fouling tendency and sludge filtration properties were assessed. The findings showed that by decreasing the SRT, the pilot plant could maintain excellent carbon removal efficiencies throughout the experiments...
January 19, 2018: Environmental Technology
https://www.readbyqxmd.com/read/29338577/modeling-sluggishness-in-binaural-unmasking-of-speech-for-maskers-with-time-varying-interaural-phase-differences
#2
Christopher F Hauth, Thomas Brand
In studies investigating binaural processing in human listeners, relatively long and task-dependent time constants of a binaural window ranging from 10 ms to 250 ms have been observed. Such time constants are often thought to reflect "binaural sluggishness." In this study, the effect of binaural sluggishness on binaural unmasking of speech in stationary speech-shaped noise is investigated in 10 listeners with normal hearing. In order to design a masking signal with temporally varying binaural cues, the interaural phase difference of the noise was modulated sinusoidally with frequencies ranging from 0...
January 2018: Trends in Hearing
https://www.readbyqxmd.com/read/29337023/the-effects-of-functional-training-bicycle-exercise-and-exergaming-on-walking-capacity-of-elderly-with-parkinson-s-disease-a-pilot-randomized-controlled-single-blinded-trial
#3
Daniel Dominguez Ferraz, Karen Valadares Trippo, Gabriel Pereira Duarte, Mansueto Gomes Neto, Kionna Oliveira Bernardes Santos, Jamary Oliveira Filho
OBJECTIVES: To compare the effects of functional training, bicycle exercise and exergaming on walking capacity of elderly with Parkinson disease (PD). DESIGN: A pilot randomized controlled single-blinded trial. SETTING: A State Reference Health Care Centre for Elderly, a public reference outpatient clinic for the elderly. PARTICIPANTS: Sixty-two elderly individuals (≥60 years-old) with idiopathic PD (stage 2 to 3 of modified Hoehn and Yahr) according to the London Brain Bank...
January 11, 2018: Archives of Physical Medicine and Rehabilitation
https://www.readbyqxmd.com/read/29322247/comparison-of-the-neuroinflammatory-responses-to-selective-retina-therapy-and-continuous-wave-laser-photocoagulation-in-mouse-eyes
#4
Jung Woo Han, Juhye Choi, Young Shin Kim, Jina Kim, Ralf Brinkmann, Jungmook Lyu, Tae Kwann Park
PURPOSE: This study investigated microglia and inflammatory cell responses after selective retina therapy (SRT) with microsecond-pulsed laser in comparison to continuous-wave laser photocoagulation (cwPC). METHODS: Healthy C57BL/6 J mice were treated with either a train of short pulses (SRT; 527-nm, Q-switched, 1.7-μs pulse) or a conventional thermal continuous-wave (532-nm, 100-ms pulse duration) laser. The mice were sacrificed and their eyes were enucleated 1, 3, 7, and 14 days after both laser treatments...
January 10, 2018: Graefe's Archive for Clinical and Experimental Ophthalmology
https://www.readbyqxmd.com/read/29320716/distinct-roles-of-systemic-and-local-actions-of-insulin-on-pancreatic-%C3%AE-cells
#5
Takumi Kitamoto, Kenichi Sakurai, Eun Young Lee, Koutaro Yokote, Domenico Accili, Takashi Miki
OBJECTIVE: Pancreatic β-cell mass and function are critical in glucose homeostasis. Their regulatory mechanisms have been studied principally under experimental conditions of reduced β-cell numbers, such as β-cell ablation and partial pancreatectomy. In the present study, we generated an opposite mouse model with an excessive amount of ectopic β-cells, and analyzed its consequence on β-cell mass and survival. METHODS: Mice underwent sub-renal transplantation (SRT) of pseudo-islets generated from a pancreatic β-cell line MIN6 or intra-pancreatic transplantation (IPT) of MIN6 cells, and morphological and functional changes of their endocrine pancreata were analyzed...
January 7, 2018: Metabolism: Clinical and Experimental
https://www.readbyqxmd.com/read/29320570/image-guided-whole-pelvic-intensity-modulated-radiotherapy-for-biochemical-recurrence-following-radical-prostatectomy-in-high-risk-prostate-cancer-patients
#6
Sang Jun Byun, Young Seok Kim, Hanjong Ahn, Choung-Soo Kim
BACKGROUND: The optimal field size of salvage radiotherapy (SRT) for biochemical recurrence, particularly for patients with high-risk prostate cancer, remains undefined. This retrospective analysis was performed to investigate oncological outcomes as well as treatment-related toxicity following salvage intensity-modulated radiotherapy (IMRT) to the whole pelvis and to compare the results with other studies implementing a small field size of the prostate bed. METHODS: The medical records of 170 patients with high-risk prostate cancer who received SRT for biochemical recurrence following prostatectomy were reviewed...
2018: PloS One
https://www.readbyqxmd.com/read/29316943/are-prognostic-indices-for-brain-metastases-of-melanoma-still-valid-in-the-stereotactic-era
#7
Harun Badakhshi, Fidelis Engeling, Volker Budach, Pirus Ghadjar, Sebastian Zschaeck, David Kaul
BACKGROUND: Malignant melanoma brain metastases (MBM) are the third most common cause for brain metastases (BM). Historically Whole-brain radiotherapy (WBRT) was considered the goldstandard of treatment even though melanoma cells are regarded as very radioresistant. Therapeutic possibilities have fundamentally changed since the availability of stereotactic radiotherapy (SRT), where it is possible to apply high ablative doses in a very precise manner. In this work we analyze prognostic factors of overall survival (OS) after SRT in patients with MBM and evaluate the applicability of popular prognostic indices that mainly stem from the WBRT-era...
January 10, 2018: Radiation Oncology
https://www.readbyqxmd.com/read/29313740/the-influence-of-personality-and-working-memory-capacity-on-implicit-learning
#8
Francisco Javier Guzmán Muñoz
The main objective of this study was to influence implicit learning through two different classical manipulations and to inspect whether working memory capacity (WMC) and personality were related to the different measures of learning. With that purpose, in Experiment 1 we asked 172 undergraduate students of psychology to perform a serial reaction time (SRT) task under single- or dual-task conditions and to complete a WMC task and a personality test. In Experiment 2, 164 students performed the SRT task under incidental or intentional conditions and also filled a WMC task and a personality test...
January 1, 2018: Quarterly Journal of Experimental Psychology: QJEP
https://www.readbyqxmd.com/read/29307445/plan-quality-comparison-between-4-arc-and-6-arc-noncoplanar-volumetric-modulated-arc-stereotactic-radiotherapy-for-the-treatment-of-multiple-brain-metastases
#9
Kotaro Yoshio, Toshiharu Mitsuhashi, Akihisa Wakita, Takahiro Kitayama, Kento Hisazumi, Daisaku Inoue, Tsuyoki Shiode, Shiro Akaki, Susumu Kanazawa
To compare the plans of 4-arc and 6-arc noncoplanar volumetric modulated arc stereotactic radiotherapy (VMA-SRT) for multiple brain metastases and to investigate the cutoff value for the tumor number and volume for 6-arc rather than 4-arc VMA-SRT. We identified 24 consecutive multiple-target cases (3 to 19 targets in each case) with 189 total targets. We constructed plans using both 4- and 6-arc noncoplanar VMA-SRT. The prescribed dose was 36 Gy/6 fr, and it was delivered to 95% of the planning target volume (PTV)...
January 4, 2018: Medical Dosimetry: Official Journal of the American Association of Medical Dosimetrists
https://www.readbyqxmd.com/read/29306740/efficacy-of-computer-based-cognitive-training-in-neuropsychological-performance-of-patients-with-multiple-sclerosis-a-systematic-review-and-meta-analysis
#10
REVIEW
Efthimios Dardiotis, Anastasia Nousia, Vasileios Siokas, Zisis Tsouris, Athina Andravizou, Alexios-Fotios A Mentis, Despoina Florou, Lambros Messinis, Grigorios Nasios
IMPORTANCE: Multiple sclerosis (MS) is a chronic inflammatory disease of the central nervous system characterized by relapses and a progressive course that may lead to accumulation of physical and cognitive disability. Cognitive training interventions seem to improve the cognitive performance of MS patients. The aim of the present meta-analysis is to quantitatively investigate the effect of computer-based cognitive rehabilitation on the neuropsychological performance of patients with MS...
December 24, 2017: Multiple Sclerosis and related Disorders
https://www.readbyqxmd.com/read/29306132/operation-optimization-of-a-photo-sequencing-batch-reactor-for-wastewater-treatment-study-on-influencing-factors-and-impact-on-symbiotic-microbial-ecology
#11
Jianfeng Ye, Junyu Liang, Liang Wang, Giorgos Markou, Qilong Jia
Wastewater treatment technology with better energy efficiency and recyclability is in urgent demand. Photo-Sequencing batch reactor (SBR), which introduces microalgae into conventional SBR, is considered to have more potential for resource recycling. In this study, a photo-SBR was evaluated through the manipulation of several key operational parameters, i.e., aeration strength, light supply intensity and time per cycle, and solid retention time (SRT). The algal-bacterial symbiotic system had the potential of removing COD, NH4+-N and TN with limited aeration, representing the advantage of energy-saving by low aeration requirement...
December 28, 2017: Bioresource Technology
https://www.readbyqxmd.com/read/29299740/augmented-superior-rectus-transposition-procedure-in-duane-retraction-syndrome-compared-with-sixth-nerve-palsy
#12
Mohammadreza Akbari, Setareh Shomali, Arash Mirmohammadsadeghi, Masoud Aghsaei Fard
PURPOSE: Superior rectus transposition (SRT) with medial rectus recession has been used for the treatment of sixth nerve palsy and esotropic Duane retraction syndrome (DRS). The purpose of this study was to compare the results of augmented SRT (with scleral fixation) without medial rectus recession in DRS and sixth nerve palsy. METHODS: Patients with unilateral esotropic DRS (DRS group) and sixth nerve palsy were included in this prospective, comparative study and underwent SRT...
January 3, 2018: Graefe's Archive for Clinical and Experimental Ophthalmology
https://www.readbyqxmd.com/read/29295764/gene-therapy-for-mucopolysaccharidoses
#13
REVIEW
Kazuki Sawamoto, Hui-Hsuan Chen, Carlos J Alméciga-Díaz, Robert W Mason, Shunji Tomatsu
Mucopolysaccharidoses (MPS) are a group of lysosomal storage disorders (LSDs) caused by a deficiency of lysosomal enzymes, leading to a wide range of various clinical symptoms depending upon the type of MPS or its severity. Enzyme replacement therapy (ERT), hematopoietic stem cell transplantation (HSCT), substrate reduction therapy (SRT), and various surgical procedures are currently available for patients with MPS. However, there is no curative treatment for this group of disorders. Gene therapy should be a one-time permanent therapy, repairing the cause of enzyme deficiency...
December 26, 2017: Molecular Genetics and Metabolism
https://www.readbyqxmd.com/read/29282563/development-of-a-test-grid-using-eye-movement-perimetry-for-screening-glaucomatous-visual-field-defects
#14
N S Kadavath Meethal, D Mazumdar, R Asokan, M Panday, J van der Steen, K A Vermeer, H G Lemij, R J George, J J M Pel
BACKGROUND: Eye Movement Perimetry (EMP) uses Saccadic Eye Movement (SEM) responses for visual field evaluation. Previous studies have demonstrated significant delay in initiation of SEMs among glaucoma patients in comparison with healthy subjects. The aim of the current study was to develop an EMP-based screening grid to identify glaucomatous visual field defects. METHODS: An interactive test consisting of 36 locations and two stimulus contrasts (162 cd/m2 and 190 cd/m2 on a background of 140 cd/m2) was evaluated in 54 healthy subjects and 50 primary glaucoma patients...
December 28, 2017: Graefe's Archive for Clinical and Experimental Ophthalmology
https://www.readbyqxmd.com/read/29281874/survival-and-functional-outcome-after-treatment-for-primary-base-of-tongue-cancer-a-comparison-of-definitive-chemoradiotherapy-versus-surgery-followed-by-adjuvant-radiotherapy
#15
Sangjoon Park, Yeona Cho, Jeongshim Lee, Yoon Woo Koh, Se-Heon Kim, Eun Chang Choi, Hye Ryun Kim, Ki Chang Keum, Kyung Ran Park, Chang Geol Lee
Purpose: The purpose of this study was to compare the clinical and functional outcomes in patients with primary base of tongue (BOT) cancer who received definitive radiotherapy (RT) or surgery followed by radiotherapy (SRT). Materials and Methods: Between January 2002 and December 2016, 102 patients with stage I-IVB primary BOT cancer underwent either definitive RT (n=46) or SRT (n=56), and treatment outcomes were compared between two groups. The expression of p16 was also analyzed...
December 26, 2017: Cancer Research and Treatment: Official Journal of Korean Cancer Association
https://www.readbyqxmd.com/read/29281480/improved-salt-removal-and-power-generation-in-a-cascade-of-two-hydraulically-connected-up-flow-microbial-desalination-cells
#16
Surajbhan Sevda, Ibrahim M Abu-Reesh
A novel two chamber up-flow microbial desalination cell (UMDC) was designed for evaluating desalination of real seawater with simultaneous wastewater treatment and energy generation. Two UMDCs were hydraulically connected in continuous flow mode (cascade mode) and operated at ten different hydraulic retention times (HRTs) [120 h to 12 h] and salt retention times (SRTs) [40 h to 4 h] for improved performance of chemical oxygen demand (COD) and salt removal. These UMDCs were operated at different combinations of high power (higher external resistance) and high current (low external resistance) mode to find the most suitable conditions for obtaining higher COD removal, salt removal, power production and current generation...
December 27, 2017: Journal of Environmental Science and Health. Part A, Toxic/hazardous Substances & Environmental Engineering
https://www.readbyqxmd.com/read/29250026/visual-tracking-in-development-and-aging
#17
Jun Maruta, Lisa A Spielman, Umesh Rajashekar, Jamshid Ghajar
A moving target is visually tracked with a combination of smooth pursuit and saccades. Human visual tracking eye movement develops through early childhood and adolescence, and declines in senescence. However, the knowledge regarding performance changes over the life course is based on data from distinct age groups in isolation using different procedures, and thus is fragmented. We sought to describe the age-dependence of visual tracking performance across a wide age range and compare it to that of simple visuo-manual reaction time...
2017: Frontiers in Neurology
https://www.readbyqxmd.com/read/29249308/impact-of-srt-on-the-performance-of-mbrs-for-the-treatment-of-high-strength-landfill-leachate
#18
M El-Fadel, F Sleem, J Hashisho, P E Saikaly, I Alameddine, S Ghanimeh
This study examines the performance and fouling potential of flat sheet (FS) and hollow fiber (HF) membrane bioreactors (MBRs) during the treatment of high strength landfill leachate under varying solid retention times (SRT = 5-20 days). Mixed-liquor bacterial communities were examined over time using 16S rRNA gene sequence analysis in an attempt to define linkages between the system performance and the microbial community composition. Similarly, biofilm samples were collected at the end of each SRT to characterize the microbial communities that evolved on the surface of the FS and HF membranes...
December 14, 2017: Waste Management
https://www.readbyqxmd.com/read/29248372/food-waste-co-digestion-with-slaughterhouse-waste-and-sewage-sludge-digestate-conditioning-and-supernatant-quality
#19
Sebastian Borowski, Paweł Boniecki, Przemysław Kubacki, Agata Czyżowska
In this study, the anaerobic mesophilic co-digestion of food waste (FW) with municipal sewage sludge (MSS) and slaughterhouse waste (SHW) was undertaken in 3-dm3 laboratory reactors as well as in 50-dm3 reactors operated in semi-continuous conditions. The highest methane yield of around 0.63 m3 CH4/kgVSfed was achieved for the mixture of FW and SHW treated in the laboratory digester operated at solids retention time (SRT) of 30 days, whereas the co-digestion of FW with MSS under similar operating conditions produced 0...
December 13, 2017: Waste Management
https://www.readbyqxmd.com/read/29247985/slow-movement-resistance-training-using-body-weight-improves-muscle-mass-in-the-elderly-a-randomized-controlled-trial
#20
S Tsuzuku, T Kajioka, H Sakakibara, K Shimaoka
To examine the effect of a 12-week slow movement resistance training using body weight as a load (SRT-BW) on muscle mass, strength, and fat distribution in healthy elderly people. Fifty-three men and 35 women aged 70 years old or older without experience in resistance training participated, and they were randomly assigned to a SRT-BW group or control group. The control group did not receive any intervention, but participants in this group underwent a repeat measurement 12 weeks later. The SRT-BW program consisted of three different exercises (squat, tabletop push-up, and sit-up), which were designed to stimulate anterior major muscles...
December 16, 2017: Scandinavian Journal of Medicine & Science in Sports
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