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https://www.readbyqxmd.com/read/29454173/photo-assisted-electrochemical-abatement-of-trifluralin-using-a-cathode-containing-a-c-60-carbon-nanotubes-composite
#1
Aliyeh Hasanzadeh, Alireza Khataee, Mahmoud Zarei, Sang Woo Joo
This work reports the potential application of modified gas-diffusion electrode (GDE) with C 60 -CNT composite, as a stable and efficient cathode material for degradation of trifluralin (TRL) pesticide by photo-assisted electrochemical (PE) process. C 60 -CNT composite was prepared and characterized. Subsequently, a novel C 60 -CNT composite modified GDE cathode was developed and the electrochemical and physical characteristics of the modified GDEs were studied. C 60 -CNT composite/GDE showed great efficiencies for electro-generating H 2 O 2 , owing to huge surface area and high conductivity...
February 9, 2018: Chemosphere
https://www.readbyqxmd.com/read/29454098/quantitative-imaging-features-and-postoperative-hepatic-insufficiency-a-multi-institutional-expanded-cohort
#2
Linda M Pak, Jayasree Chakraborty, Mithat Gonen, William C Chapman, Richard Kg Do, Bas Groot Koerkamp, Kees Verhoef, Ser Yee Lee, Marco Massani, Eric P van der Stok, Amber L Simpson
BACKGROUND: Post-hepatectomy liver insufficiency (PHLI) is a significant cause of morbidity and mortality after liver resection. Quantitative imaging analysis using CT scans measures variations in pixel intensity related to perfusion. A preliminary study demonstrated a correlation between quantitative imaging features of the future liver remnant (FLR) parenchyma from preoperative CT scans and PHLI. The objective of the present study was to explore the potential application of quantitative imaging analysis in PHLI in an expanded, multi-institutional cohort...
February 14, 2018: Journal of the American College of Surgeons
https://www.readbyqxmd.com/read/29453773/electrospray-ionization-source-with-a-rear-extractor
#3
Lee Chuin Chen, Satoru Tsutsui, Tsubasa Naito, Satoshi Ninomiya, Kenzo Hiraoka
A new electrospray source design is introduced by having an extractor electrode placed at 1~2 mm behind the emitter tip. The extractor was integrated into the sprayer body as a single device. An insulating tube was used to isolate the emitter from the extractor and to deliver the sheath gas for the electrospray. The electric field strength at the emitter was primarily determined by the relative position and the potential between the needle and the extractor, therefore, the spraying condition was insusceptible to the change of sprayer position or orientation with respect to the ion sampling inlet...
February 17, 2018: Journal of Mass Spectrometry: JMS
https://www.readbyqxmd.com/read/29453721/fenton-treatment-of-bio-treated-fermentation-based-pharmaceutical-wastewater-removal-and-conversion-of-organic-pollutants-as-well-as-estimation-of-operational-costs
#4
Yunqin Cheng, Yunlu Chen, Juncheng Lu, Jianxin Nie, Yan Liu
The Fenton process is used as a tertiary treatment to remove organic pollutants from the effluent of bio-treated pharmaceutical wastewater (EBPW). The optimal and most appropriate Fenton conditions were determined by an orthogonal array test and single-factor experiments. The removal of chemical oxygen demand (COD) was influenced by the following factors in a descending order: H 2 O 2 /Fe(II) molar ratio > H 2 O 2 dosage > reaction time. Under the most appropriate Fenton conditions (H 2 O 2 /Fe(II) molar ratio of 1:1, H 2 O 2 dosage of 120 mg L -1 and reaction time of 10 min), the COD and dissolved organic carbon (DOC) were removed with efficiencies of 62 and 53%, respectively, which met the national discharge standard (GB 21903-2008) for the Lake Tai Basin, China...
February 16, 2018: Environmental Science and Pollution Research International
https://www.readbyqxmd.com/read/29452755/machine-learning-algorithms-based-on-signals-from-a-single-wearable-inertial-sensor-can-detect-surface-and-age-related-differences-in-walking
#5
B Hu, P C Dixon, J V Jacobs, J T Dennerlein, J M Schiffman
The aim of this study was to investigate if a machine learning algorithm utilizing triaxial accelerometer, gyroscope, and magnetometer data from an inertial motion unit (IMU) could detect surface- and age-related differences in walking. Seventeen older (71.5 ± 4.2 years) and eighteen young (27.0 ± 4.7 years) healthy adults walked over flat and uneven brick surfaces wearing an inertial measurement unit (IMU) over the L5 vertebra. IMU data were binned into smaller data segments using 4-s sliding windows with 1-s step lengths...
January 12, 2018: Journal of Biomechanics
https://www.readbyqxmd.com/read/29452576/assessing-retention-in-care-after-12-months-of-the-pediatric-development-clinic-implementation-in-rural-rwanda-a-retrospective-cohort-study
#6
Scheilla Bayitondere, Francois Biziyaremye, Catherine M Kirk, Hema Magge, Katrina Hann, Kim Wilson, Christine Mutaganzwa, Eric Ngabireyimana, Fulgence Nkikabahizi, Evelyne Shema, David B Tugizimana, Ann C Miller
BACKGROUND: In Africa, a high proportion of children are at risk for developmental delay. Early interventions are known to improve outcomes, but they are not routinely available. The Rwandan Ministry of Health with Partners In Health/Inshuti Mu Buzima created the Pediatric Development Clinic (PDC) model for providing interdisciplinary developmental care for high-risk infants in rural settings. As retention for chronic care has proven challenging in many settings, this study assesses factors related to retention to care after 12 months of clinic enrollment...
February 16, 2018: BMC Pediatrics
https://www.readbyqxmd.com/read/29452180/the-m-maze-task-an-automated-method-for-studying-fear-memory-in-rats-exposed-to-protracted-aversive-conditioning
#7
Rimenez R Souza, Nicole M Robertson, David T Pruitt, Lindsey Noble, Eric C Meyers, Phillip A Gonzales, Nathaniel P Bleker, Holle L Carey, Seth A Hays, Michael P Kilgard, Christa K McIntyre, Robert L Rennaker
BACKGROUND: Fear conditioning (FC) in rodents is the most used animal model to investigate the neurobiology of posttraumatic stress disorder (PTSD). Although research using FC has generated a better understanding of fear memories, studies often rely on mild or moderate FC training and behavioral analysis generally focuses on measuring freezing responses within few test sessions. NEW METHOD: We introduce the M-Maze task, a system to measures extinction of conditioned fear using suppression of operant behavior...
February 13, 2018: Journal of Neuroscience Methods
https://www.readbyqxmd.com/read/29452136/neuroprotective-effects-of-valproic-acid-on-brain-ischemia-are-related-to-its-hdac-and-gsk3-inhibitions
#8
Monalisa Ribeiro Silva, Alyne Oliveira Correia, Gabriel Cabral Alencar Dos Santos, Lucas Leimig Telles Parente, Keicy Parente de Siqueira, Danielly Gonçalves Sombra Lima, Jonathan Almeida Moura, Ana Elisa da Silva Ribeiro, Roberta Oliveira Costa, Daniel Luna Lucetti, Elaine Cristina Pereira Lucetti, Kelly Rose Tavares Neves, Glauce Socorro de Barros Viana
Valproic acid (VA) is an antiepileptic that is also used for the treatment of bipolar disorders. The objective was to evaluate the neuroprotective effects of VA on a brain ischemia model. The groups of male Wistar rats were: SO (sham-operated), ischemic and ischemic treated with VA (25, 50 and 100 mg/kg, p.o.). After anesthesia with ketamine and xilazine, the animals were subjected to clamping of carotid arteries (30 min) and reperfusion. Except for the carotid clamping, the SO group was submitted to the same procedure...
February 13, 2018: Pharmacology, Biochemistry, and Behavior
https://www.readbyqxmd.com/read/29451105/human-automation-interaction-for-multiple-robot-control-the-effect-of-varying-automation-assistance-and-individual-differences-on-operator-performance
#9
Julia L Wright, Jessie Y C Chen, Michael J Barnes
In a human-automation interaction study, automation assistance level (AL) was investigated for its effects on operator performance in a dynamic, multi-tasking environment. Participants supervised a convoy of manned and unmanned vehicles traversing a simulated environment in three AL conditions, while maintaining situation awareness and identifying targets. Operators' situation awareness, target detection performance, workload, and individual differences were evaluated. Results show increasing AL generally improved task performance and decreased perceived workload, however differential effects due to operator spatial ability and perceived attentional control were found...
February 16, 2018: Ergonomics
https://www.readbyqxmd.com/read/29451094/growth-and-optimization-of-carbon-nanotubes-in-powder-activated-carbon-for-an-efficient-removal-of-methylene-blue-from-aqueous-solution
#10
Haiyam Mohammed Alayan, Mohammed Abdulhakim Alsaadi, Mohammed Khaled AlOmar, Mohd Ali Hashim
This work demonstrated the synthesis of carbon nanotubes (CNTs) on powder activated carbon (PAC) impregnated with Ni-catalyst through chemical vapor deposition. The optimized effects of reaction temperature, time and feedstock flow rates on CNT growth were examined. Potassium permanganate (KMnO 4 ) and potassium permanganate in acidic solution (KMnO 4 /H 2 SO 4 ) were used to functionalize CNTs samples. A primary screening of methylene blue (MB) adsorption was conducted. The chemical, physical and morphological properties of the adsorbent with the highest removal efficiency were investigated using FESEM, EDX, TEM, BET surface area, RAMAN, TGA, FTIR, and zeta potential...
February 16, 2018: Environmental Technology
https://www.readbyqxmd.com/read/29450853/endometriosis-clinical-features-mr-imaging-findings-and-pathologic-correlation
#11
REVIEW
Pietro Valerio Foti, Renato Farina, Stefano Palmucci, Ilenia Anna Agata Vizzini, Norma Libertini, Maria Coronella, Saveria Spadola, Rosario Caltabiano, Marco Iraci, Antonio Basile, Pietro Milone, Antonio Cianci, Giovanni Carlo Ettorre
OBJECTIVE: We illustrate the magnetic resonance imaging (MRI) features of endometriosis. BACKGROUND: Endometriosis is a chronic gynaecological condition affecting women of reproductive age and may cause pelvic pain and infertility. It is characterized by the growth of functional ectopic endometrial glands and stroma outside the uterus and includes three different manifestations: ovarian endometriomas, peritoneal implants, deep pelvic endometriosis. The primary locations are in the pelvis; extrapelvic endometriosis may rarely occur...
February 15, 2018: Insights Into Imaging
https://www.readbyqxmd.com/read/29450732/combined-prostatic-urethral-lift-and-remodeling-of-the-prostate-and-bladder-neck-a-modified-transurethral-approach-in-the-treatment-of-symptomatic-lower-urinary-tract-obstruction
#12
Martin Schoenthaler, Karl-Dietrich Sievert, Dominik Stefan Schoeb, Arkadiusz Miernik, Thomas Kunit, Simon Hein, Thomas R W Herrmann, Konrad Wilhelm
PURPOSE: The aim of the study was to evaluate the feasibility and safety of combining prostatic urethral lift (PUL) and a limited resection of the prostatic middle lobe or bladder neck incision in the treatment of lower urinary tract symptoms (LUTS) secondary to benign prostatic hyperplasia (BPH). METHODS: Twenty-eight patients were treated at two tertiary centers and followed prospectively. Patient evaluations included patient characteristics, relief of LUTS symptoms, erectile and ejaculatory function, continence, operative time and adverse events...
February 15, 2018: World Journal of Urology
https://www.readbyqxmd.com/read/29450642/risk-factors-of-non-specific-spinal-pain-in-childhood
#13
Julia Szita, Sara Boja, Agnes Szilagyi, Annamaria Somhegyi, Peter Pal Varga, Aron Lazary
PURPOSE: Non-specific spinal pain can occur at all ages and current evidence suggests that pediatric non-specific spinal pain is predictive for adult spinal conditions. A 5-year long, prospective cohort study was conducted to identify the lifestyle and environmental factors leading to non-specific spinal pain in childhood. MATERIALS AND METHODS: Data were collected from school children aged 7-16 years, who were randomly selected from three different geographic regions in Hungary...
February 15, 2018: European Spine Journal
https://www.readbyqxmd.com/read/29450466/diagnostic-criteria-of-ulcerative-pyoderma-gangrenosum-a-delphi-consensus-of-international-experts
#14
Emanual Maverakis, Chelsea Ma, Kanade Shinkai, David Fiorentino, Jeffrey P Callen, Uwe Wollina, Angelo Valerio Marzano, Daniel Wallach, Kyoungmi Kim, Courtney Schadt, Anthony Ormerod, Maxwell A Fung, Andrea Steel, Forum Patel, Rosie Qin, Fiona Craig, Hywel C Williams, Frank Powell, Alexander Merleev, Michelle Y Cheng
Importance: Pyoderma gangrenosum is a rare inflammatory skin condition that is difficult to diagnose. Currently, it is a "diagnosis of exclusion," a definition not compatible with clinical decision making or inclusion for clinical trials. Objective: To propose and validate diagnostic criteria for ulcerative pyoderma gangrenosum. Evidence Review: Diagnostic criteria were created following a Delphi consensus exercise using the RAND/UCLA Appropriateness Method...
February 14, 2018: JAMA Dermatology
https://www.readbyqxmd.com/read/29449889/how-primary-care-can-contribute-to-good-mental-health-in-adults
#15
REVIEW
Sunjai Gupta, Rachel Jenkins, John Spicer, Marina Marks, Nigel Mathers, Lise Hertel, Laura Calamos Nasir, Fiona Wright, Baljeet Ruprah-Shah, Brian Fisher, David Morris, Kurt C Stange, Robert White, Gina Giotaki, Tony Burch, Catherine Millington-Sanders, Steve Thomas, Ricky Banarsee, Paul Thomas
The need for support for good mental health is enormous. General support for good mental health is needed for 100% of the population, and at all stages of life, from early childhood to end of life. Focused support is needed for the 17.6% of adults who have a mental disorder at any time, including those who also have a mental health problem amongst the 30% who report having a long-term condition of some kind. All sectors of society and all parts of the NHS need to play their part. Primary care cannot do this on its own...
January 2018: London Journal of Primary Care
https://www.readbyqxmd.com/read/29449885/deep-eutectic-solvents-pretreatment-of-agro-industrial-food-waste
#16
Alessandra Procentese, Francesca Raganati, Giuseppe Olivieri, Maria Elena Russo, Lars Rehmann, Antonio Marzocchella
Background: Waste biomass from agro-food industries are a reliable and readily exploitable resource. From the circular economy point of view, direct residues from these industries exploited for production of fuel/chemicals is a winning issue, because it reduces the environmental/cost impact and improves the eco-sustainability of productions. Results: The present paper reports recent results of deep eutectic solvent (DES) pretreatment on a selected group of the agro-industrial food wastes (AFWs) produced in Europe...
2018: Biotechnology for Biofuels
https://www.readbyqxmd.com/read/29449755/catalytic-liquefaction-of-human-feces-over-ni-tm-tio-2-catalyst-and-the-influence-of-operating-conditions-on-products
#17
Wenjia Wang, Lei Yang, Zhaosen Yin, Shengyan Kong, Wei Han, Jinglai Zhang
In this study, human feces were hydrothermal liquefied and converted into biocrude over Ni-Tm/TiO 2 catalyst. The influence of catalysts, reaction temperature, and holding time on the distribution of products and element content of biocrude was assessed. The biocrude yield increased to 53.16% with a reaction temperature of 330 °C, a holding time of 30 min, and adding Ni-Tm/TiO 2 catalyst while the liquefaction conversion peaked at 89.61%. The biocrude had an HHV of 36.64 MJ/kg and was similar to heavy crude oil...
February 1, 2018: Energy Conversion and Management
https://www.readbyqxmd.com/read/29449547/inference-of-field-reversed-configuration-topology-and-dynamics-during-alfvenic-transients
#18
J A Romero, S A Dettrick, E Granstedt, T Roche, Y Mok
Active control of field reversed configuration (FRC) devices requires a method to determine the flux surface geometry and dynamic properties of the plasma during both transient and steady-state conditions. The current tomography (CT) method uses Bayesian inference to determine the plasma current density distribution using both the information from magnetic measurements and a physics model in the prior. Here we show that, from the inferred current sources, the FRC topology and its axial stability properties are readily obtained...
February 15, 2018: Nature Communications
https://www.readbyqxmd.com/read/29449111/a-comparative-study-of-thermophilic-and-mesophilic-anaerobic-co-digestion-of-food-waste-and-wheat-straw-process-stability-and-microbial-community-structure-shifts
#19
Xuchuan Shi, Xianglin Guo, Jiane Zuo, Yajiao Wang, Mengyu Zhang
Renewable energy recovery from organic solid waste via anaerobic digestion is a promising way to provide sustainable energy supply and eliminate environmental pollution. However, poor efficiency and operational problems hinder its wide application of anaerobic digestion. The effects of two key parameters, i.e. temperature and substrate characteristics on process stability and microbial community structure were studied using two lab-scale anaerobic reactors under thermophilic and mesophilic conditions. Both the reactors were fed with food waste (FW) and wheat straw (WS)...
February 12, 2018: Waste Management
https://www.readbyqxmd.com/read/29448921/evaluation-of-risk-factors-for-perforated-peptic-ulcer
#20
Kazuki Yamamoto, Osamu Takahashi, Hiroko Arioka, Daiki Kobayashi
BACKGROUND: The aim of this study was to evaluate the prediction factors for perforated peptic ulcer (PPU). METHODS: At St. Luke's International Hospital in Tokyo, Japan, a case control study was performed between August 2004 and March 2016. All patients diagnosed with PPU were included. As control subjects, patients with age, sex and date of CT scan corresponding to those of the PPU subjects were included in the study at a proportion of 2 controls for every PPU subject...
February 15, 2018: BMC Gastroenterology
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