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https://www.readbyqxmd.com/read/29793186/excess-sludge-disruption-and-pollutant-removal-from-tannery-effluent-by-upgraded-activated-sludge-system
#1
Vijay Sodhi, Ajay Bansal, Mithilesh Kumar Jha
This study proposed a maintenance metabolism based upgraded activated sludge as MANODOX system that restricts excess biosludge generation from high strength real tannery effluent. The MANODOX experimental demonstration has been done using a sequenced operational arrangement of a MBBR, anaerobic digester, and oxidation ditch connected to CAS reactor, discussed in detail manner. Experimental trends revealed a prominently lower sludge yield upto 0.271 gVSS/gCOD (72% overall sludge reduction) that corresponds to parallel run CAS (0...
April 30, 2018: Bioresource Technology
https://www.readbyqxmd.com/read/29793172/on-the-autonomous-motion-of-active-drops-or-bubbles
#2
Yuri S Ryazantsev, Manuel G Velarde, Eduardo Guzman, Ramón G Rubio, Francisco Ortega, Juan-Jose Montoya
Thermo-capillary stresses on the surface of a drop can be the result of a non-isothermal surface chemical conversion of a reactant dissolved in the host fluid. The strength of heat production (with e.g. absorption) on the surface is ruled by the diffusion of the reactant and depends on the state of motion of the drop. Such thermo-capillary stresses can provoke the motion of the drop or its motionless state in the presence of an external body force. If in the balance of forces, including indeed viscous drag, the net resultant force vanishes there is the possibility of autonomous motion with constant velocity of the drop...
May 19, 2018: Journal of Colloid and Interface Science
https://www.readbyqxmd.com/read/29793156/mechanical-properties-of-the-human-scalp-in-tension
#3
Lisa Falland-Cheung, Mario Scholze, Pamela F Lozano, Benjamin Ondruschka, Darryl C Tong, Paul A Brunton, J Neil Waddell, Niels Hammer
Mechanical properties of the human scalp have not been investigated to a great extent with limited information available. The purpose of this study was to provide new baseline material data for human scalp tissue of various ages, which can be applied to experimental and constitutive models, such as in the area of impact biomechanics. This study used specimens from the left and right temporal, fronto-parietal and occipital regions of the human scalp. It investigated the tensile behavior of scalp tissue using tissues harvested from unfixed, fresh cadavers...
May 17, 2018: Journal of the Mechanical Behavior of Biomedical Materials
https://www.readbyqxmd.com/read/29793121/head-coaches-attitudes-towards-injury-prevention-and-use-of-related-methods-in-professional-basketball-a-survey
#4
J Wilke, D Niederer, L Vogt, W Banzer
OBJECTIVES: To investigate the practices and attitudes of professional basketball head coaches towards injury prevention. DESIGN: Survey. SETTING: Elite-level basketball. PARTICIPANTS: Head coaches of all 366 German professional teams. MAIN OUTCOME MEASURES: Use of injury risk screening methods, rated importance of different musculoskeletal injuries and rated effectiveness of preventive interventions...
April 17, 2018: Physical Therapy in Sport
https://www.readbyqxmd.com/read/29793102/joint-attention-in-down-syndrome-a-meta-analysis
#5
REVIEW
Laura J Hahn, Susan J Loveall, Madison T Savoy, Allie M Neumann, Toshikazu Ikuta
BACKGROUND: Some studies have indicated that joint attention may be a relative strength in Down syndrome (DS), but other studies have not. AIM: To conduct a meta-analysis of joint attention in DS to more conclusively determine if this is a relative strength or weakness when compared to children with typical development (TD), developmental disabilities (DD), and autism spectrum disorder (ASD). METHODS AND PROCEDURES: Journal articles published before September 13, 2016, were identified by using the search terms "Down syndrome" and "joint attention" or "coordinating attention"...
May 21, 2018: Research in Developmental Disabilities
https://www.readbyqxmd.com/read/29793083/optimization-adsorption-of-norfloxacin-onto-polydopamine-microspheres-from-aqueous-solution-kinetic-equilibrium-and-adsorption-mechanism-studies
#6
Yibei Wan, Xiao Liu, Penglei Liu, Lei Zhao, Weihua Zou
Polydopamine microspheres (PDMPs) synthesized by a facile solution oxidation method were adopted as a potential adsorbent for the removal of Norfloxacin (NOR) from aqueous solution. The morphologies and properties of PDMPs were characterized using TEM, SEM, FTIR and pHPZC . Parameters effects such as contact time, initial pH, initial concentration and ionic strength on the adsorption capacity of NOR onto PDMPs were studied. To maximize NOR removal from liquid phase, Box-Behnken experimental design (BBD) combined with response surface modeling (RSM) was employed based on the 17 preliminary experiments at 308 K...
May 21, 2018: Science of the Total Environment
https://www.readbyqxmd.com/read/29793061/microstructural-imaging-of-the-human-brain-with-a-super-scanner-10-key-advantages-of-ultra-strong-gradients-for-diffusion-mri
#7
D K Jones, D C Alexander, R Bowtell, M Cercignani, F Dell'Acqua, D J McHugh, K L Miller, M Palombo, G J M Parker, U S Rudrapatna, C M W Tax
The key component of a microstructural diffusion MRI 'super-scanner' is a dedicated high-strength gradient system that enables stronger diffusion weightings per unit time compared to conventional gradient designs. This can, in turn, drastically shorten the time needed for diffusion encoding, increase the signal-to-noise ratio, and facilitate measurements at shorter diffusion times. This review, written from the perspective of the National Facility for In Vivo MR Imaging of Human Tissue Microstructure, an initiative to establish a shared 300 mT/m-gradient facility amongst the microstructural imaging community, describes ten advantages of ultra-strong gradients for microstructural imaging...
May 21, 2018: NeuroImage
https://www.readbyqxmd.com/read/29793000/effect-of-a-bisphosphonate-and-selective-estrogen-receptor-modulator-on-bone-remodeling-in-streptozotocin-induced-diabetes-and-ovariectomized-rat-model
#8
Young-Seok Lee, Rishab Gupta, Jeong-Taik Kwon, Dae-Chul Cho, Ye Jin Seo, Sung Young Seu, Eui Kyun Park, Inbo Han, Chi-Heon Kim, Joo-Kyung Sung, Kyoung-Tae Kim
BACKGROUND CONTEXT: Diabetes and menopause can cause severe osteoporosis. In general, menopause and diabetes can lead to an imbalance in bone turnover, which results in secondary osteoporosis. However, the efficacy of antiresorptive drugs against this form of osteoporosis has not been extensively evaluated. OBJECTIVE: The aim of this study was to determine the changes in vertebral bone remodeling when postmenopausal osteoporosis is accompanied by diabetes and the efficacy of bisphosphonates and selective estrogen-receptor modulators (SERMs) against these outcomes...
May 21, 2018: Spine Journal: Official Journal of the North American Spine Society
https://www.readbyqxmd.com/read/29792961/composite-films-of-regenerate-cellulose-with-chitosan-and-polyvinyl-alcohol-evaluation-of-water-adsorption-mechanical-and-optical-properties
#9
Patricia Cazón, Manuel Vázquez, Gonzalo Velazquez
The aim of this study was to develop composite films from cellulose, chitosan and polyvinyl alcohol to obtain environmentally friendly materials. Toughness, burst strength, distance to burst and water adsorption properties were measured and analysed as a function of cellulose (3-5%), chitosan (0-1%) and polyvinyl alcohol (0-4%) contents. Polynomial models were obtained. Light-barrier properties, transparency, morphology, structural and thermal analyses were assessed. Results showed that chitosan and polyvinyl alcohol enhanced the mechanical properties of cellulose-based films...
May 21, 2018: International Journal of Biological Macromolecules
https://www.readbyqxmd.com/read/29792956/development-of-photo-modified-starch-kefiran-tio-2-bio-nanocomposite-as-an-environmentally-friendly-food-packaging-material
#10
Vahid Goudarzi, Iman Shahabi-Ghahfarrokhi
This paper reports on an experiment in which starch/kefiran/TiO2 (SKT)-based bio-nanocomposite films were developed and modified by photo-chemical reaction. In so doing, film-forming solutions were exposed to ultraviolet A (UV-A) for different times (1, 6, and 12 h). The obtained results indicated that increasing UV-A exposure time brought about an increase (≈14.9%) in the tensile strength of bio-nanocomposites. However, elongation at break and Young's modulus of irradiated film specimen decreased (≈32%, ≈12%, respectively) by increasing UV-A exposure time, and the moisture-sensitive parameters of specimen decreased using UV-A irradiation...
May 21, 2018: International Journal of Biological Macromolecules
https://www.readbyqxmd.com/read/29792935/lp533401-restores-bone-health-in-5-6-nephrectomized-rats-by-a-decrease-of-gut-derived-serotonin-and-regulation-of-serum-phosphate-through-the-inhibition-of-phosphate-co-transporters-expression-in-the-kidneys
#11
Dariusz Pawlak, Beata Znorko, Bartlomiej Kalaska, Tomasz Domaniewski, Radosław Zawadzki, Paweł Lipowicz, Michał Doroszko, Urszula Łebkowska, Piotr Grabowski, Krystyna Pawlak
LP533401 is an orally bioavailable small molecule that inhibits tryptophan hydroxylase-1, an enzyme responsible for the synthesis of gut-derived serotonin (GDS). Recently, we showed that increased GDS in rats with chronic kidney disease (CKD) affected bone strength and metabolism. We tested the hypothesis that treatment with LP533401 could reverse CKD-induced bone loss in uremia. Sixteen weeks after 5/6 nephrectomy, rats were randomized into untreated (CKD), treated with vehicle (VEH) and LP533401 at a dose of 30 or 100 mg/kg daily for 8 weeks...
May 21, 2018: Bone
https://www.readbyqxmd.com/read/29792926/prediction-of-midlife-hand-osteoarthritis-in-young-men
#12
Karin Magnusson, Aleksandra Turkiewicz, Simon Timpka, Martin Englund
OBJECTIVES: Improved prediction modeling in osteoarthritis (OA) may encourage risk reduction through calculation of individual and population lifetime risks. There are currently no prediction models for hand OA. Thus, we aimed to i) develop a prediction model for hand OA in men and ii) to contrast its discriminative performance to a prediction model for lung cancer and chronic obstructive pulmonary disease (COPD). METHODS: We included 40 118 men aged 18 years undergoing mandatory conscription in Sweden 1969-70...
May 21, 2018: Osteoarthritis and Cartilage
https://www.readbyqxmd.com/read/29792807/micelles-protect-intact-metallo-supramolecular-block-copolymer-complexes-from-solution-to-gas-phase-during-electrospray-ionization
#13
Kai Hung Huang, Tsung-Han Tu, Shi-Cheng Wang, Yi-Tsu Chan, Cheng-Chih Hsu
Supramolecular diblock copolymers using metal-ligand coordination can be synthesized under ambient conditions by delicate design of the end groups of the homopolymer chains. However, mass spectrometric analysis of such metallo-supramolecular copolymers is challenging. One of the reasons is the nonpolarity of the polymer chains, making it hard to disperse the complexes in electrospray ionization (ESI)-friendly environments. The other difficulty is the noncovalent nature of such copolymers, which is easily disrupted during the ionization...
May 24, 2018: Analytical Chemistry
https://www.readbyqxmd.com/read/29792700/the-energy-landscapes-of-mini-dumbbell-dna-octanucleotides
#14
James S Klimavicz, Konstantin Röder, David J Wales
Single-stranded DNA structures play a significant role in biological systems, in particular during replication, translation and DNA repair. Tracts of simple repetitive DNA (srDNA) are associated with slipped-strand mispairing (SSMs), that can lead to genetic diseases. Recent NMR studies of TTTA and CCTG repeats have shown that these sequences form mini-dumbbells (MDBs), leading to frameshift mutations. Here we explore the energy landscapes of (CCTG)2 and (TTTA)2 , which are currently the smallest known molecules to form MDBs...
May 24, 2018: Journal of Chemical Theory and Computation
https://www.readbyqxmd.com/read/29792695/bond-dissociation-energies-of-metallo-supramolecular-building-blocks-insight-from-fragmentation-of-selectively-self-assembled-heterometallic-metallo-supramolecular-aggregates
#15
Yvonne Lorenz, Albert Gutiérrez, Montserrat Ferrer, Marianne Engeser
A series of selectively self-assembled metallo-supramolecular square-like macrocycles with unsymmetric ditopic linkers and two different types of metal corners, i.e., {Pd(η3 -2-Me-C3 H4 )} and {M(dppp)} with dppp = 1,3-bis(diphenylphosphino)propane and M = Pd2+ or Pt2+ , have been studied in the gas phase using collision-induced dissociation. The aggregates show distinct fragmentation patterns determined by ligand length, i.e, aggregate size, and type of metal corner. Information on relative binding strength can be deduced...
May 24, 2018: Inorganic Chemistry
https://www.readbyqxmd.com/read/29792574/evaluation-of-a-mobile-application-for-pelvic-floor-exercises
#16
Michelle N Han, Tamara Grisales, Aparna Sridhar
BACKGROUND: Pelvic floor exercises are effective in improving muscle strength and urinary incontinence symptoms. Increasingly popular mobile applications can be effective in teaching patients these exercises. INTRODUCTION: A mobile application, Bwom© , aims to educate women about pelvic floor exercises with individually tailored plans relevant to the user's risk factors. The objective of this study is to assess the understandability and actionability of Bwom. MATERIALS AND METHODS: This is a cross-sectional survey of patients and providers at an academic medical center...
May 24, 2018: Telemedicine Journal and E-health: the Official Journal of the American Telemedicine Association
https://www.readbyqxmd.com/read/29792564/cognitive-and-behavioral-resilience-among-young-gay-and-bisexual-men-living-with-hiv
#17
Sophia A Hussen, Gary W Harper, Caryn R R Rodgers, Jacob J van den Berg, Nadia Dowshen, Lisa B Hightow-Weidman
PURPOSE: HIV/AIDS disproportionately affects young gay, bisexual, and other men who have sex with men (Y-GBMSM). Resilience remains understudied among Y-GBMSM living with HIV, but represents a potentially important framework for improving HIV-related outcomes in this population. We sought to explore cognitive and behavioral dimensions of resilience and their correlates among Y-GBMSM to gain insights to inform future interventions. METHODS: Our study sample consisted of 200 Y-GBMSM living with HIV enrolled in a multisite study of the Adolescent Medicine Trials Network for HIV/AIDS Interventions (ATN)...
August 2017: LGBT Health
https://www.readbyqxmd.com/read/29792556/effect-of-wii-training-on-hand-function-in-children-with-hemiplegic-cerebral-palsy
#18
Shamekh Mohamed El-Shamy, Mohamed Fawzy El-Banna
OBJECTIVE: The purpose of this study was to investigate the effect of Wii training on hand function in children with hemiplegic cerebral palsy. METHODS: A randomized controlled trial was conducted in 40 children with hemiplegic cerebral palsy (8-12 years). The experimental group received Wii training involving four games for 40 minutes a day, three times a week for 12 weeks plus usual care. The control group received usual care alone. Outcomes were spasticity measured using the modified Ashworth scale, grip strength measured using dynamometry, and hand function measured using the Peabody developmental motor scale (2nd ed...
May 24, 2018: Physiotherapy Theory and Practice
https://www.readbyqxmd.com/read/29792506/testing-the-validity-of-criminal-risk-assessment-tools-in-sexually-abusive-youth
#19
Steffen Barra, Cornelia Bessler, Markus A Landolt, Marcel Aebi
Although accurate risk appraisals are mandatory to provide effective treatment to juveniles who have sexually offended (JSOs), the current knowledge on the validity of risk assessment instruments for JSOs is inconclusive. We compared the predictive validities of the Juvenile Sex Offender Assessment Protocol II (J-SOAP II), the Estimate of Risk of Adolescent Sexual Offense Recidivism (ERASOR), and the Violence Risk Appraisal Guide-Revised (VRAG-R) scores concerning sexual, nonsexual-violent, and general criminal recidivism (based on both official and nonregistered reoffenses) in a consecutive sample of 597 male JSOs (Mage = 14...
May 24, 2018: Psychological Assessment
https://www.readbyqxmd.com/read/29792353/gastroretentive-raft-liquid-delivery-system-as-a-new-approach-to-release-extension-for-carrier-mediated-drug
#20
Samar M Abouelatta, Ahmed A Aboelwafa, Omaima N El-Gazayerly
Gabapentin (GBP), an antiepileptic and anti-neuropathic agent, suffers from short half-life (5-7 h), has narrow absorption window, and is absorbed via carrier-mediated mechanism resulting in frequent dosing, poor compliance, and poor bioavailability (<60%). Moreover, GBP is a freely water-soluble drug, thus it is considered a challenging candidate to be formulated as extended release dosage form. In this study, raft forming systems were investigated as a potential drug delivery system for prolonging gastric residence time of GBP...
November 2018: Drug Delivery
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