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https://www.readbyqxmd.com/read/29679915/application-of-solar-photo-fenton-for-benzophenone-type-uv-filters-removal
#1
Henry Zúñiga-Benítez, Gustavo A Peñuela
Benzophenones (BPs) family is one of the most frequently used groups of UV-filters. However, it has been reported by different authors that this kind of chemical compounds could be associated with some endocrine disrupting activity, genotoxicity and reproductive toxicity. In addition, different studies have evidenced the presence of BPs in several environmental matrices, indicating that conventional technologies of water treatment are not able to remove them, which generates the necessity of evaluating new alternatives of remediation...
April 18, 2018: Journal of Environmental Management
https://www.readbyqxmd.com/read/29679834/microeukaryotic-biogeography-in-the-typical-subtropical-coastal-waters-with-multiple-environmental-gradients
#2
Huajun Zhang, Xiaolin Huang, Lei Huang, Fangjian Bao, Shangling Xiong, Kai Wang, Demin Zhang
The determinants of microeukaryotic biogeography in coastal waters at a regional scale remain largely unclear. The coastal northern Zhejiang (in the East China Sea) is a typical subtropical marine ecosystem with multiple environmental gradients that has been extensively perturbed by anthropogenic activities. Thus, it is a valuable region to investigate the key drivers that shape microbial biogeography. We investigated microeukaryotic communities in surface waters from 115 stations in this region using 18S ribosomal RNA gene amplicon sequencing...
April 18, 2018: Science of the Total Environment
https://www.readbyqxmd.com/read/29679703/pc-pvt-2-0-an-updated-platform-for-psychomotor-vigilance-task-testing-analysis-prediction-and-visualization
#3
Jaques Reifman, Kamal Kumar, Maxim Y Khitrov, Jianbo Liu, Sridhar Ramakrishnan
BACKGROUND: The psychomotor vigilance task (PVT) has been widely used to assess the effects of sleep deprivation on human neurobehavioral performance. To facilitate research in this field, we previously developed the PC-PVT, a freely available software system analogous to the "gold-standard" PVT-192 that, in addition to allowing for simple visual reaction time (RT) tests, also allows for near real-time PVT analysis, predictions, and visualization in a personal computer (PC)...
April 18, 2018: Journal of Neuroscience Methods
https://www.readbyqxmd.com/read/29679334/metabolic-surgery-and-diabesity-a-systematic-review
#4
REVIEW
Lionel El Khoury, Elie Chouillard, Elias Chahine, Elias Saikaly, Tarek Debs, Radwan Kassir
Bariatric surgery is used to induce weight loss (baros = weight). Evidence has shown that bariatric surgery improves the comorbid conditions associated with obesity such as hypertension, hyperlipidemia, and type 2 diabetes mellitus T2DM. Hence, shifting towards using metabolic surgery instead of bariatric surgery is currently more appropriate in certain subset of patients. Endocrine changes resulting from operative manipulation of the gastrointestinal tract after metabolic surgery translate into metabolic benefits with respect to the comorbid conditions...
April 20, 2018: Obesity Surgery
https://www.readbyqxmd.com/read/29679131/process-optimization-involving-critical-evaluation-of-oxygen-transfer-oxygen-uptake-and-nitrogen-limitation-for-enhanced-biomass-and-lipid-production-by-oleaginous-yeast-for-biofuel-application
#5
Jayita Chopra, Ramkrishna Sen
Lipid accumulation in oleaginous yeast is generally induced by nitrogen starvation, while oxygen saturation can influence biomass growth. Systematic shake flask studies that help in identifying the right nitrogen source and relate its uptake kinetics to lipid biosynthesis under varying oxygen saturation conditions are very essential for addressing the bioprocessing-related issues, which are envisaged to occur in the fermenter scale production. In the present study, lipid bioaccumulation by P. guilliermondii at varying C:N ratios and oxygen transfer conditions (assessed in terms of kL a) was investigated in shake flasks using a pre-optimized N-source and a two-stage inoculum formulated in a hybrid medium...
April 20, 2018: Bioprocess and Biosystems Engineering
https://www.readbyqxmd.com/read/29679130/effects-of-intermittent-aeration-periods-on-a-structured-bed-reactor-continuously-fed-on-the-post-treatment-of-sewage-anaerobic-effluent
#6
Bruno Garcia Silva, Márcia Helena Rissato Zamariolli Damianovic, Eugenio Foresti
This study assessed the simultaneous nitrification and denitrification processes and remaining organic matter removal from anaerobic reactor effluent treating wastewater in a single reactor. A structured-bed reactor, with polyurethane foam as support media, was subjected to intermittent aeration and effluent recirculation. Aerated/non-aerated periods varied in the range of 2/1-1/3 h. The chemical oxygen demand (COD) in the effluent remained between 26 and 42 mg L-1 throughout all the aeration conditions. Aeration periods of 1/2 h removed 80 and 26% of Total Kjeldahl Nitrogen and Total Nitrogen, respectively...
April 20, 2018: Bioprocess and Biosystems Engineering
https://www.readbyqxmd.com/read/29678456/inflatable-penile-prosthesis-placement-scratch-technique-and-postoperative-vacuum-therapy-as-a-combined-approach-in-the-definitive-treatment-of-patients-with-peyronie-s-disease
#7
G Antonini, E De Berardinis, F Del Giudice, G M Busetto, S Lauretti, R Fragas, B I Chung, S L Conti, D Giannarelli, I Sperduti, M S Gross, P E Perito
PURPOSE: Peyronie's disease (PD) is a devastating condition resulting in penile deformity, erectile dysfunction (ED), pain and emotional distress. This prospective two institution study evaluates a multimodal surgical and mechanical combined approach in the definitive treatment of PD and concomitant ED. MATERIALS AND METHODS: 145 selected patients underwent endocavernosal disruption of the PD plaques via the "scratch technique" followed by inflatable penile prosthesis (IPP) insertion...
April 17, 2018: Journal of Urology
https://www.readbyqxmd.com/read/29678422/significant-interaction-of-hypertension-and-homocysteine-on-neurological-severity-in-first-ever-ischemic-stroke-patients
#8
Ying-Li Fan, Rui Zhan, Yi-Fei Dong, Lei Huang, Xi-Xin Ji, Peng Lu, Jian Liu, Ping Li, Xiao-Shu Cheng
It is not known whether combination of hypertension and high homocysteine (HHcy) impacts on stroke-related neurological severity. Our aim was to determine whether there is an interaction of hypertension and HHcy on neurological severity in first-ever ischemic stroke patients. We analyzed neurological severity among 189 consecutive first-ever ischemic stroke patients with or without hypertension or HHcy. Hypertension (odds ratio [OR]: 8.086, 95% confidence interval [CI]: 3.596-18.181, P < .001) and total homocysteine (OR: 1...
April 3, 2018: Journal of the American Society of Hypertension: JASH
https://www.readbyqxmd.com/read/29678317/elective-surgery-cancellations-during-the-time-between-scheduling-and-operation
#9
Elina Turunen, Merja Miettinen, Leena Setälä, Katri Vehviläinen-Julkunen
PURPOSE: Surgery cancellations cause harm to patients, extra work for preoperative staff, and financial loss for organizations. Day of surgery cancellations are a widely used indicator for operative effectiveness, but there is a lack of knowledge concerning the effects of cancellations during earlier stages of a patient's preoperative waiting period. The purpose of this study was to measure the reasons, frequencies, and timing of elective surgery cancellations after scheduling. DESIGN: Qualitative prospective follow-up study...
April 17, 2018: Journal of Perianesthesia Nursing: Official Journal of the American Society of PeriAnesthesia Nurses
https://www.readbyqxmd.com/read/29678051/interoperability-assets-for-patient-summary-components-a-gap-analysis
#10
Kai U Heitmann, Giorgio Cangioli, Marcello Melgara, Catherine Chronaki
The International Patient Summary (IPS) standards aim to define the specifications for a minimal and non-exhaustive Patient Summary, which is specialty-agnostic and condition-independent, but still clinically relevant. Meanwhile, health systems are developing and implementing their own variation of a patient summary while, the eHealth Digital Services Infrastructure (eHDSI) initiative is deploying patient summary services across countries in the Europe. In the spirit of co-creation, flexible governance, and continuous alignment advocated by eStandards, the Trillum-II initiative promotes adoption of the patient summary by engaging standards organizations, and interoperability practitioners in a community of practice for digital health to share best practices, tools, data, specifications, and experiences...
2018: Studies in Health Technology and Informatics
https://www.readbyqxmd.com/read/29677817/effect-of-manganese-oxide-over-cu-mn-based-oxygen-carriers-for-chemical-looping-combustion
#11
Yong Han Jeong, Tae Jin Lee, Misook Kang, Jeom-In Baek, Ho-Jung Ryu, No-Kuk Park
This study examined the effects of Mn on Cu-Mn-based mixed metal oxides used as oxygen transfer particles in the chemical looping combustion process. Chemical looping combustion of fuel is induced by the oxygen contained in the metal oxide. The oxidation reaction of the metal oxide particles reduced in the fuel reactor occurs in the air reactor. The metal oxide, which allows oxygen transfer, circulates between the fuel reactor to air reactor and supplies oxygen in the fuel reactor. Both reactors are operated at high temperatures (>850 °C) and the heat of reaction is recovered to produce electricity and heat...
September 1, 2018: Journal of Nanoscience and Nanotechnology
https://www.readbyqxmd.com/read/29677723/compact-potential-model-for-si-1-x-ge-x-si-heterojunction-double-gate-tunnel-field-effect-transistors-tfets
#12
Sangwan Kim, Woo Young Choi
In this manuscript, the compact potential model for double-gate (DG) Si1-xGex/Si heterojunction tunnel field-effect transistors (TFETs) is proposed by adopting several strategies to the previous model. Compared with the control model, the enhanced model can describe the effects of additional parameters such as electron permittivity and Si1-xGex affinity, doping dependent bandgap narrowing, temperature, built-in potential change due to degenerately doping condition and energy band off-sets. The model accuracy is examined by benchmarking against to the technology computeraided design (TCAD) device simulations in terms of electrostatic potential profiles, band diagrams and minimum tunneling barrier width (Wt, min)...
September 1, 2018: Journal of Nanoscience and Nanotechnology
https://www.readbyqxmd.com/read/29676743/performance-of-a-pervaporation-system-for-the-separation-of-an-ethanol-water-mixture-using-fractional-condensation
#13
Jie Liu, Jiding Li, Quan Chen, Xiaoduan Li
Polydimethylsiloxane (PDMS)/polyvinylidene fluoride (PVDF) composite membranes were fabricated and subsequently applied in ethanol recovery from an ethanol-water mixture by pervaporation (PV) using fractional condensation. The effects of feed temperature and feed flow velocity on the pervaporative properties of PDMS/PVDF composite membranes were investigated. Scanning electron microscopy (SEM) results showed that PDMS was coated uniformly on the surface of porous PVDF substrate, and the PDMS separation layer was dense with a thickness of 1...
April 2018: Water Science and Technology: a Journal of the International Association on Water Pollution Research
https://www.readbyqxmd.com/read/29676626/chronic-obstructive-pulmonary-disease-and-herbicide-exposure-in-vietnam-era-u-s-army-chemical-corps-veterans
#14
Yasmin Cypel, Stella E Hines, Victoria J Davey, Stephanie M Eber, Aaron I Schneiderman
RATIONALE: Past research demonstrates a possible association between herbicide exposure and respiratory health. Biologic plausibility and inhalation as a mode of exposure further support the contention that herbicides may act as adverse contributors to respiratory status, especially in military personnel who were responsible for chemical maintenance and distribution during the Vietnam War. OBJECTIVES: This study examines the association between chronic obstructive pulmonary disease and herbicide exposure among Vietnam-era U...
April 2018: Annals of the American Thoracic Society
https://www.readbyqxmd.com/read/29676482/severe-heart-failure-nyha-class-iv-is-associated-with-increased-left-ventricular-mass-index-and-short-mitral-deceleration-time-in-severe-aortic-valve-stenosis
#15
Sayuki Kobayashi, Hiroto Utsunomiya, Takahiro Shiota
BACKGROUND: In aortic valve stenosis (AS), congestive heart failure (CHF) is a well-established symptom that indicates the need for surgical aortic valve replacement (SAVR). However, it is difficult to judge whether CHF symptoms such as dyspnea are caused by severe AS or other conditions, especially in elderly persons with restricted mobility or other organ complications. It is important to identify objective and noninvasive parameters associated with severe CHF symptoms in severe AS...
April 20, 2018: Echocardiography
https://www.readbyqxmd.com/read/29676331/cervicofacial-emphysema-following-unilateral-external-dacryocystorhinostomies-a-case-report
#16
Ziya Akingol, Safak Karslioglu, Didem Serin
Cervicofacial emphysema (CFE), mostly seen after trauma or dental procedures, is an unexpected, extremely rare condition after uncomplicated dacryocystorhinostomy (DCR). It may be misdiagnosed as angioedema or necrotizing fasciitis. In this article, we present the case of a 40-year-old female with CFE twice after uncomplicated unilateral DCR for left and right sides on different operative days. CFE was confirmed by computed tomography, demonstrating extensive air within subcutaneous tissues of the face, neck, and orbital cavity...
May 2018: Indian Journal of Ophthalmology
https://www.readbyqxmd.com/read/29675877/design-of-novel-wearable-stretchable-and-waterproof-cable-type-supercapacitors-based-on-high-performance-nickel-cobalt-sulfide-coated-etching-annealed-yarn-electrodes
#17
Yuejiao Chen, Bingang Xu, Jianfeng Wen, Jianliang Gong, Tao Hua, Chi-Wai Kan, Jiwei Deng
Rapid advances in functional electronics bring tremendous demands on innovation toward effective designs of device structures. Yarn supercapacitors (SCs) show advantages of flexibility, knittability, and small size, and can be integrated into various electronic devices with low cost and high efficiency for energy storage. In this work, functionalized stainless steel yarns are developed to support active materials of positive and negative electrodes, which not only enhance capacitance of both electrodes but can also be designed into stretchable configurations...
April 19, 2018: Small
https://www.readbyqxmd.com/read/29675841/early-life-conditions-that-impact-song-learning-in-male-zebra-finches-also-impact-neural-and-behavioral-responses-to-song-in-females
#18
Kendra B Sewall, Rindy C Anderson, Jill A Soha, Susan Peters, Stephen Nowicki
Early life stressors can impair song in songbirds by negatively impacting brain development and subsequent learning. Even in species in which only males sing, early life stressors might also impact female behavior and its underlying neural mechanisms, but fewer studies have examined this possibility. We manipulated brood size in zebra finches to simultaneously examine the effects of developmental stress on male song learning and female behavioral and neural response to song. Although adult male HVC volume was unaffected, we found that males from larger broods imitated tutor song less accurately...
April 20, 2018: Developmental Neurobiology
https://www.readbyqxmd.com/read/29675338/assessing-the-healing-of-venous-leg-ulcers-using-a-noncontact-near-infrared-optical-imaging-approach
#19
Jiali Lei, Suset Rodriguez, Maanasa Jayachandran, Elizabeth Solis, Katrina Epnere, Francisco Perez-Clavijo, Stephen Wigley, Anuradha Godavarty
Objective: Venous leg ulcers (VLUs) are one of the most common complications in lower extremity wounds. To date, clinicians employ visual inspection of the wound site during its healing process by monitoring surface granulation and reduction in wound size across weeks of treatment. In this study, a handheld near-infrared optical scanner (NIROS) has been developed at the Optical Imaging Laboratory to differentiate healing from nonhealing VLUs based on differences in blood flow to the wound and its surroundings...
April 1, 2018: Advances in Wound Care
https://www.readbyqxmd.com/read/29675224/stereoselective-cobalt-catalyzed-halofluoroalkylation-of-alkynes
#20
Guojiao Wu, Axel Jacobi von Wangelin
Stereoselective additions of highly functionalized reagents to available unsaturated hydrocarbons are an attractive synthetic tool due to their high atom economy, modularity, and rapid generation of complexity. We report efficient cobalt-catalyzed ( E )-halofluoroalkylations of alkynes/alkenes that enable the construction of densely functionalized, stereodefined fluorinated hydrocarbons. The mild conditions (2 mol% cat., 20 °C, acetone/water, 3 h) tolerate various functional groups, i.e. halides, alcohols, aldehydes, nitriles, esters, and heteroarenes...
February 21, 2018: Chemical Science
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