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https://www.readbyqxmd.com/read/29793207/infectivity-reduction-efficacy-of-uv-irradiation-and-peracetic-acid-uv-combined-treatment-on-ms2-bacteriophage-and-murine-norovirus-in-secondary-wastewater-effluent
#1
ShihChi Weng, Nathan Dunkin, Kellogg J Schwab, James McQuarrie, Kati Bell, Joseph G Jacangelo
Peracetic acid (PAA) is a strong oxidant/bactericide that has been applied in various industries (e.g., food processing, pharmaceuticals, medical device sterilization, etc.) as a disinfectant. There is increasing interest in using PAA for wastewater disinfection because it does not form halogenated byproducts, and no post-treatment quenching is required. Previous studies have demonstrated good efficiency in controlling bacteria in wastewater, but limited information is available for viruses, especially those hosted by mammals (e...
May 21, 2018: Journal of Environmental Management
https://www.readbyqxmd.com/read/29793186/excess-sludge-disruption-and-pollutant-removal-from-tannery-effluent-by-upgraded-activated-sludge-system
#2
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/29793163/rheological-characterisation-of-concentrated-domestic-slurry
#3
A K Thota Radhakrishnan, J B van Lier, F H L R Clemens
The much over-looked element in new sanitation, the transport systems which bridge the source and treatment facilities, is the focus of this study. The knowledge of rheological properties of concentrated domestic slurry is essential for the design of the waste collection and transport systems. To investigate these properties, samples were collected from a pilot sanitation system in the Netherlands. Two types of slurries were examined: black water (consisting of human faecal waste, urine, and flushed water from vacuum toilets) and black water with ground kitchen waste...
May 3, 2018: Water Research
https://www.readbyqxmd.com/read/29793083/optimization-adsorption-of-norfloxacin-onto-polydopamine-microspheres-from-aqueous-solution-kinetic-equilibrium-and-adsorption-mechanism-studies
#4
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/29793065/arsenic-removal-by-as-hyperaccumulator-pteris-vittata-from-two-contaminated-soils-a-5-year-study
#5
Evandro B da Silva, Jason T Lessl, Ann C Wilkie, Xue Liu, Yungen Liu, Lena Q Ma
The ability of As-hyperaccumulator Pteris vittata to remove As from two contaminated soils (CCA from an As-treated wood facility and DVA from a cattle-dipping vat) over 5 years was investigated for the first time. The goal was to evaluate P. vittata's ability to continuously remove As during 10 harvests and identify how soil As was affected by P. vittata under P-sufficient (P-fertilizer) and P-limiting (phosphate rock) conditions. Sequential extraction was used to determine changes in metal distribution among different soil fractions...
May 10, 2018: Chemosphere
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
#6
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/29793039/antimicrobial-resistance-in-the-context-of-the-syrian-conflict-drivers-before-and-after-the-onset-of-conflict-and-key-recommendations
#7
REVIEW
Aula Abbara, Timothy M Rawson, Nabil Karah, Wael El-Amin, James Hatcher, Bachir Tajaldin, Osman Dar, Omar Dewachi, Ghassan Abu Sitta, Bernt Eric Uhlin, Annie Sparrow
Current evidence describing antimicrobial resistance (AMR) in the context of the Syrian conflict is of poor quality and sparse in nature. In this paper we explore and report the major drivers of AMR that were present in Syria pre-conflict and those that have emerged since its onset in March 2011. Drivers which existed before the conflict included a lack of enforcement of existing legislation to regulate over the counter antibiotics and notification of communicable diseases. This contributed to a number of drivers of AMR after the onset of conflict which were also compounded by the exodus of trained staff, the increase in overcrowding and unsanitary conditions, the increase in injuries and economic sanctions limiting the availability of required laboratory medical materials and equipment...
May 21, 2018: International Journal of Infectious Diseases: IJID
https://www.readbyqxmd.com/read/29792837/total-avulsed-ear-management-with-radial-forearm-free-flap
#8
Uzair Luqman, Zahid Qayyum, Zahid Furqan, Kaleem Ullah
Avulsive injuries to the ear are extremely challenging to treat. The literature documents numerous ways to manage such injuries. This report describes a case of total auricular cartilaginous avulsion that occurred during a motor vehicle accident. The avulsed segment had an ischemia time longer than 8 hours by the time of presentation at the authors' tertiary care facility. The avulsed segment was de-epithelialized and embedded into the volar forearm. After a healing period of 6 months, a radial forearm free flap was harvested and the ear was reconstructed...
April 28, 2018: Journal of Oral and Maxillofacial Surgery
https://www.readbyqxmd.com/read/29792737/assessing-the-recall-rate-for-screening-mammography-comparing-the-medicare-hospital-compare-dataset-with-the-national-mammography-database
#9
Cindy S Lee, Carol Parise, Judy Burleson, David Seidenwurm
OBJECTIVE: High-quality screening mammography has been shown to substantially reduce mortality from breast cancer. Recall rate is a principal performance metric for screening mammography because it directly relates to the rate of false-positive examinations. This study aims to compare the recall rate derived using two sources-the claims-based Hospital Compare (HC) dataset from the Centers for Medicare & Medicaid Services versus the National Mammography Database (NMD) from the American College of Radiology-to understand the implications in pay-for-performance and quality improvement activities...
May 24, 2018: AJR. American Journal of Roentgenology
https://www.readbyqxmd.com/read/29792690/a-general-method-to-increase-stokes-shift-by-introducing-alternating-vibronic-structures
#10
Tian-Bing Ren, Wang Xu, Wei Zhang, Xing-Xing Zhang, Zhi-Yao Wang, Zhen Xiang, Lin Yuan, Xiaobing Zhang
Fluorescent dyes have enabled the progress of the broad biomedical fields. However, many commercially available dyes suffer from small Stokes shifts, resulting in poor signal-to-noise ratio and self-quenching on current microscope configuration. In this work, we have developed a general method to significantly increase the Stokes shifts of common fluorophores. By simply appending a 1,4-diethyl-decahydro-quinoxaline (DQ) moiety onto the conjugated structure, we introduced a vibronic backbone that could facilely expand the Stokes shifts, emission wavelength and photo-stability of eleven different fluorophores by more than 3-fold...
May 24, 2018: Journal of the American Chemical Society
https://www.readbyqxmd.com/read/29792665/highly-conductive-and-robust-3d-host-with-excellent-alkali-metal-infiltration-boosts-ultra-stable-lithium-and-sodium-metal-anodes
#11
Wan-Sheng Xiong, Yu Xia, Yun Jiang, Yuyang Qi, Weiwei Sun, Dan He, Yumin Liu, Xingzhong Zhao
The direct utilization of metallic lithium and sodium as the anodes for rechargeable batteries would be highly advantageous, which has been considered as one of the most promising choices for next-generation high-energy-density storage devices. Although the induced safety concerns, inferior rate and cycling performance severely hinder the commercialization of lithium-metal batteries (LMB) and sodium-metal batteries (SMB), the recent development of nanotechnology-based solutions really revives the lithium/sodium metal anodes for high-energy batteries...
May 24, 2018: ACS Applied Materials & Interfaces
https://www.readbyqxmd.com/read/29792568/physical-ergonomics-awareness-in-an-offshore-processing-platform-among-malaysian-oil-and-gas-workers
#12
M Hafizul Hilmi, Raja Ariffin Raja Ghazilla
INTRODUCTION: The reliability of offshore oil and gas (O&G) facilities depend on the operation and maintenance activities, where human physical intervention is involved. Workers are often exposed to ergonomics hazards due to inefficient workplace design. Ergonomics awareness among workers is a crucial factor in mitigating such hazards. OBJECTIVES: This study intends to evaluate the state of physical ergonomics awareness among Malaysian O&G workers and to assess their perception towards the criticality of physical ergonomics issues within an offshore processing facility...
May 24, 2018: International Journal of Occupational Safety and Ergonomics: JOSE
https://www.readbyqxmd.com/read/29792419/as-iii-removal-from-drinking-water-by-carbon-nanotube-membranes-with-magnetron-sputtered-copper-performance-and-mechanisms
#13
Hongyan Luan, Quan Zhang, Guo-An Cheng, Haiou Huang
Current approaches for functionalizing carbon nanotubes (CNT) often utilize harsh chemical conditions and the resulting harmful wastes can cause various environmental and health concerns. In this study, magnetron-sputtering technique is facilely employed to functionalize CNT membranes by depositing Cu onto pre-made CNT membranes without using any chemical treatment. A comparative evaluation of the substrate polymeric membrane (MCE), MCE sputtered with copper (Cu/MCE), the pristine CNT membrane (CNT), and CNT membrane sputtered with Cu (Cu/CNT) shows that Cu/CNT possesses mechanically stable structures and similar membrane permeability as MCE...
May 24, 2018: ACS Applied Materials & Interfaces
https://www.readbyqxmd.com/read/29792401/synthetic-single-domain-antibodies-for-the-conformational-trapping-of-membrane-proteins
#14
Iwan Zimmermann, Pascal Egloff, Cedric Aj Hutter, Fabian M Arnold, Peter Stohler, Nicolas Bocquet, Melanie N Hug, Sylwia Huber, Martin Siegrist, Lisa Hetemann, Jennifer Gera, Samira Gmür, Peter Spies, Daniel Gygax, Eric R Geertsma, Roger Jp Dawson, Markus A Seeger
Mechanistic and structural studies of membrane proteins require their stabilization in specific conformations. Single domain antibodies are potent reagents for this purpose, but their generation relies on immunizations, which impedes selections in the presence of ligands typically needed to populate defined conformational states. To overcome this key limitation, we developed an in vitro selection platform based on synthetic single domain antibodies named sybodies. To target the limited hydrophilic surfaces of membrane proteins, we designed three sybody libraries that exhibit different shapes and moderate hydrophobicity of the randomized surface...
May 24, 2018: ELife
https://www.readbyqxmd.com/read/29792280/resource-utilization-and-indications-for-helicopter-transport-of-head-injured-children
#15
Clay M Elswick, Deidre Wyrick, Lori A Gurien, Malik Rettiganti, Marie Gowen, Ambre' Pownall, Diaa Bahgat, R Todd Maxson, Eylem Öcal, Gregory W Albert
INTRODUCTION: Helicopter emergency medical services (HEMS) have provided benefit for severely injured patients. However, HEMS are likely overused for the transportation of both adult and pediatric trauma patients. In this study, we aim to evaluate the degree of overuse of helicopter as a mode of transport for head-injured children. In addition, we propose criteria that can be used to determine if a particular patient is suitable for air versus ground transport. MATERIALS AND METHODS: We identified patients who were transported to our facility for head injuries...
May 1, 2018: Journal of Pediatric Surgery
https://www.readbyqxmd.com/read/29792258/nurses-and-patients-perceptions-of-the-quality-of-psychiatric-nursing-care-in-jordan
#16
Wafa S Alsyouf, Ayman M Hamdan-Mansour, Shaher H Hamaideh, Khaled M Alnadi
BACKGROUND: The quality of care provided for patients in mental health-care facilities remains a challenge for health-care providers in general and for nurses in particular. Identifying the level of quality of care provided for patients in mental health-care facilities as perceived by nurses and patients may help health-care providers improve the quality of care and improve patients' outcomes. OBJECTIVES: The purpose of the study was to assess the perceptions of nurses and patients of the quality of nursing care, and explore the differences in their perceptions of quality of care in mental health-care facilities in Jordan...
May 1, 2018: Research and Theory for Nursing Practice
https://www.readbyqxmd.com/read/29792191/cost-of-provision-of-opioid-substitution-therapy-provision-in-tijuana-mexico
#17
Jose Luis Burgos, Javier A Cepeda, James G Kahn, Maria Luisa Mittal, Emilio Meza, Raúl Rafael Palacios Lazos, Psyché Calderón Vargas, Peter Vickerman, Steffanie A Strathdee, Natasha K Martin
BACKGROUND: Mexico recently enacted drug policy reform to decriminalize possession of small amounts of illicit drugs and mandated that police refer identified substance users to drug treatment. However, the economic implications of drug treatment expansion are uncertain. We estimated the costs of opioid substitution therapy (OST) provision in Tijuana, Mexico, where opioid use and HIV are major public health concerns. METHODS: We adopted an economic health care provider perspective and applied an ingredients-based micro-costing approach to quantify the average monthly cost of OST (methadone maintenance) provision at two providers (one private and one public) in Tijuana, Mexico...
May 23, 2018: Harm Reduction Journal
https://www.readbyqxmd.com/read/29792049/five-year-suicidal-ideation-trajectories-among-women-receiving-or-being-denied-an-abortion
#18
M Antonia Biggs, Heather Gould, Rana E Barar, Diana G Foster
OBJECTIVE: The aim of this study was to assess the effects of receiving compared with being denied an abortion on women's experiences of suicidal ideation over 5 years. METHOD: The authors recruited 956 women from 30 U.S. abortion facilities. Women were interviewed by telephone 1 week after their abortion visit, then every 6 months for 5 years. Women who received near-limit abortions were compared with women who were denied an abortion and carried their pregnancies to term (turnaway-birth group)...
May 24, 2018: American Journal of Psychiatry
https://www.readbyqxmd.com/read/29791792/normalizing-tumor-microenvironment-based-on-photosynthetic-abiotic-biotic-nanoparticles
#19
Diwei Zheng, Bin Li, Lu Xu, Qiu-Ling Zhang, Jin-Xuan Fan, Chu-Xin Li, Xian-Zheng Zhang
Tumor hypoxia has attained the status of a core hallmark of cancer that globally affected the entire tumor phenotype. Reversing tumor hypoxia might offer alternative therapeutic opportunities for current anticancer therapies. In this research, a Photosynthetic Leaf-inspired Abiotic/biotic Nano-Thylakoid (PLANT) system was designed by fusing thylakoid membrane with synthetic nanoparticles for efficient O2 generation in vivo. Under 660 nm laser irradiation, PLANT system exhibited intracellular O2 generation and the anaerobic respiration of multicellular tumor spheroid was suppressed by PLANT as well...
May 23, 2018: ACS Nano
https://www.readbyqxmd.com/read/29791645/gerontological-contributions-to-the-care-of-elderly-people-in-long-term-care-facilities
#20
Vanessa da Silva Antonio Coimbra, Rose Mary Costa Rosa Andrade Silva, Fabiana Lopes Joaquim, Eliane Ramos Pereira
OBJECTIVE: To analyze Brazilian scientific productions from the last 11 years which show the contributions of nursing to elderly people in long-term care facilities. METHOD: This is an integrative literature review. The search took place in the Virtual Health Library (VHL) in the BDENF and LILACS databases and the SCIELO virtual library, between June and October 2016, using the keyword long-term care facility and the descriptors nursing and geriatrics. RESULTS: Eleven studies were selected, published 2005 and 2016, with various methodological approaches that enabled discussion of the proposed objective...
2018: Revista Brasileira de Enfermagem
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