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https://www.readbyqxmd.com/read/28719876/photoelectrocatalytic-degradation-of-methylene-blue-using-f-doped-tio2-photoelectrode-under-visible-light-irradiation
#1
Dong Liu, Renwen Tian, Jianqiao Wang, Er Nie, Xianqing Piao, Xin Li, Zhuo Sun
Photoelectrocatalysis (PEC) has attracted great interest due to cost effectiveness and high efficiency in water treatment. In this study, F doped TiO2 (F-TiO2) photoelectrodes with honeycomb like morphology were prepared, and the PEC performance was investigated. F-TiO2 particles that showed enhanced absorption of visible light were synthesized via a sol-gel method. F-TiO2 particles were anchored onto the surface of F-doped SnO2 glass by a screen-printing method to prepare the F-TiO2 photoelectrodes. The PEC performance of the F-TiO2 photoelectrodes was investigated via the degradation of methylene blue (MB) under visible light irradiation...
July 14, 2017: Chemosphere
https://www.readbyqxmd.com/read/28719852/rapid-gamma-spectrometric-analysis-of-soil-samples-after-radioactive-fallout-using-a-conjugate-view-technique
#2
M Isaksson, M Fahlström, N Ossipova, K Rosén
A method for fast determination of the activity in soil samples by measuring a fresh soil core sample from both ends with an HPGe-detector is proposed. The method was tested by simulations, as well as by measurements on spiked soil samples. Both simulations and measurements showed that the geometrical mean of the count rates when the sample is measured twice, with the bottom and the top end, respectively, facing the detector closely resembles the count rate from a measurement on a homogenized sample. Therefore, an efficiency calibration for homogenized samples could be used even if the activity is highly inhomogeneous in the soil core, as is the case with fresh fallout...
July 15, 2017: Journal of Environmental Radioactivity
https://www.readbyqxmd.com/read/28719846/preparation-characterization-and-application-of-tio2-patterned-polyimide-film-as-a-photocatalyst-for-oxidation-of-organic-contaminants
#3
Subramaniyan Ramasundaram, Mingizem Gashaw Seid, Wonseop Lee, Chan Ul Kim, Eun-Ju Kim, Seok Won Hong, Kyoung Jin Choi
Photocatalytically active TiO2-patterned polyimide (PI) films (PI-TiO2) were fabricated using thermal transfer patterning (TTP). When subjected to hot pressing, the TiO2 nanoparticles electrosprayed on steel mesh templates were successfully transferred and formed checker plate patterns on PI film. FE-SEM studies confirmed that pressing at 350°C and 100MPa was optimum for obtaining patterns with uniform TiO2 coverage. When the quantity of TiO2 on the template increased, the amount of it immobilized on PI film also increased from 0...
June 29, 2017: Journal of Hazardous Materials
https://www.readbyqxmd.com/read/28719813/comparative-stability-indicating-chromatographic-methods-for-determination-of-4-hexylresorcinol-in-pharmaceutical-formulation-and-shrimps
#4
Rafeek F Shokry, Lories I Bebawy, Mohamed R Elghobashy, Samah S Abbas
Three chromatographic stability-indicating methods were developed for determination of 4-hexylresorcinol in pure form and in a pharmaceutical formulation. Method A was based on a gradient elution liquid chromatographic HPLC determination of 4-hexylresorcinol, its related impurities and in presence of its degradation products. UPLC-MS/MS (Method B) was described for determination of the cited drug in presence of its degradation products. Method C was a thin- layer chromatography (TLC)-densitometry method for the separation and determination of the active ingredient, one of its related impurities and in presence of its degradation products...
July 8, 2017: Journal of Pharmaceutical and Biomedical Analysis
https://www.readbyqxmd.com/read/28719767/capacity-of-commune-health-stations-in-chi-linh-district-hai-duong-province-for-prevention-and-control-of-noncommunicable-diseases
#5
Nguyen Thi Thuy Nga, Bui Thi My Anh, Nguyen Nguyen Ngoc, Dang Minh Diem, Vu Duy Kien, Tran Bich Phuong, Tran Quynh Anh, Hoang Van Minh
The primary health care system in Vietnam has been playing an important role in prevention and control of diseases. This study aimed to describe the capacity of commune health stations in Chi Linh district, Hai Duong province for prevention and control of noncommunicable diseases (NCDs). A mixed-methods (quantitative and qualitative approaches) approach was applied to collect data in 20 commune health stations. The participants, including health workers, stakeholders, and patients with NCDs, were selected for the study...
July 2017: Asia-Pacific Journal of Public Health
https://www.readbyqxmd.com/read/28719766/energy-expenditure-of-standing-compared-to-sitting-while-conducting-office-tasks
#6
Jill Burns, Cuisle Forde, Sara Dockrell
Objectives This study aimed to investigate the energy expenditure of common office-based tasks. The objectives were to: (a) test the classification of tasks as sedentary or light-intensity physical activity and (b) compare the energy expenditure of tasks under two postural conditions (sitting and standing). Background The sedentary nature of office work has been highlighted as a health risk, and strategies to reduce sedentary behavior at work have been developed. However, there is limited evidence to guide the utilization of sit-stand workstations in the workplace for metabolic health benefits...
July 1, 2017: Human Factors
https://www.readbyqxmd.com/read/28719743/machine-learning-on-samdi-mass-spectrometry-signal-to-noise-ratio-improves-peptide-array-designs
#7
Albert Yan Xue, Lindsey C Szymczak, Milan Mrksich, Neda Bagheri
Emerging peptide array technologies are able to profile molecular activities within cell lysates. However, the structural diversity of peptides leads to inherent differences in peptide signal to noise ratios (S/N). These complex effects can lead to potentially unrepresentative signal intensities and can bias subsequent analyses. Within mass spectrometry-based peptide technologies, the relation between a peptide's amino acid sequence and S/N remains largely non-quantitative. To address this challenge, we present a method to quantify and analyze mass spectrometry S/N of two peptide arrays, and we use this analysis to portray quality of data and to design future arrays for SAMDI mass spectrometry...
July 18, 2017: Analytical Chemistry
https://www.readbyqxmd.com/read/28719722/learning-anatomy-through-thiel-vs-formalin-embalmed-cadavers-student-perceptions-of-embalming-methods-and-effect-on-functional-anatomy-knowledge
#8
Larissa Kennel, David M A Martin, Hannah Shaw, Tracey Wilkinson
Thiel-embalmed cadavers, which have been adopted for use in anatomy teaching in relatively few universities, show greater flexibility and color retention compared to formalin-embalmed cadavers, properties which might be considered advantageous for anatomy teaching. This study aimed to investigate student attitudes toward the dissection experience with Thiel- compared to formalin/ethanol-embalmed cadavers. It also aimed to determine if one embalming method is more advantageous in terms of learning functional anatomy through the comparison of student anterior forearm functional anatomy knowledge...
July 18, 2017: Anatomical Sciences Education
https://www.readbyqxmd.com/read/28719666/effects-of-prey-pitcher-age-and-microbes-on-acid-phosphatase-activity-in-fluid-from-pitchers-of-sarracenia-purpurea-sarraceniaceae
#9
Carl S Luciano, Sandra J Newell
Carnivory in pitcher plants generally involves digestion of prey, by the plant itself, by symbionts, or both. While symbionts appear to be important in the digestion of prey in Sarracenia purpurea, the importance of pitcher-derived enzymes is less well documented. Our goal was to reduce microbial numbers in pitcher fluid in order to measure the acid phosphatase activity attributable to the pitchers themselves. Preliminary experiments indicated that various antibiotics were minimally effective at reducing microbial populations and that antibiotic-resistant microbes were easily cultured from pitcher fluid...
2017: PloS One
https://www.readbyqxmd.com/read/28719657/isolation-and-in-vitro-evaluation-of-bacteriophages-against-mdr-bacterial-isolates-from-septic-wound-infections
#10
Roja Rani Pallavali, Vijaya Lakshmi Degati, Dakshayani Lomada, Madhava C Reddy, Vijaya Raghava Prasad Durbaka
Multi-drug resistance has become a major problem for the treatment of pathogenic bacterial infections. The use of bacteriophages is an attractive approach to overcome the problem of drug resistance in several pathogens that cause fatal diseases. Our study aimed to isolate multi drug resistant bacteria from patients with septic wounds and then isolate and apply bacteriophages in vitro as alternative therapeutic agents. Pus samples were aseptically collected from Rajiv Gandhi Institute of Medical Science (RIMS), Kadapa, A...
2017: PloS One
https://www.readbyqxmd.com/read/28719651/link-prediction-on-twitter
#11
Sanda Martinčić-Ipšić, Edvin Močibob, Matjaž Perc
With over 300 million active users, Twitter is among the largest online news and social networking services in existence today. Open access to information on Twitter makes it a valuable source of data for research on social interactions, sentiment analysis, content diffusion, link prediction, and the dynamics behind human collective behaviour in general. Here we use Twitter data to construct co-occurrence language networks based on hashtags and based on all the words in tweets, and we use these networks to study link prediction by means of different methods and evaluation metrics...
2017: PloS One
https://www.readbyqxmd.com/read/28719405/clinical-outcomes-1-year-after-empiric-131i-therapy-for-hyperthyroid-disorders-real-life-experience-and-predictive-factors-of-functional-response
#12
Lavinia Vija Racaru, Charlotte Fontan, Mathilde Bauriaud-Mallet, Séverine Brillouet, Olivier Caselles, Slimane Zerdoud, Delphine Bastié, Delphine Vallot, Philippe Caron, Manuel Bardiès, Frederic Courbon
: Radioiodine is a therapeutic option in Europe for Graves' disease (GD) and toxic multinodular goiter (MNG). PURPOSE: To compare empiric and calculated I activities using 2013 EANM recommendations. To look for predictive factors of therapeutic response to an empiric activity of I. To assess clinical situations favoring calculated treatment modalities. PATIENTS AND METHODS: Prospective monocentric study of clinical outcomes at 1 year follow-up in 86 patients with GD and MNG who received empiric I therapeutic activities (348-939 MBq)...
July 17, 2017: Nuclear Medicine Communications
https://www.readbyqxmd.com/read/28719377/stability-of-acetazolamide-baclofen-dipyridamole-mebeverine-hydrochloride-propylthiouracil-quinidine-sulfate-and-topiramate-oral-suspensions-in-syrspend-sf-ph4
#13
Anderson de Oliveira Ferreira, Hudson Polonini, Sharlene Loures da Silva, Natália Cristina Buzinari Aglio, Jordana Abreu, Brandão Marcos Antônio Fernandes
The objective of this study was to evaluate the stability of 7 commonly used active pharmaceutical ingredients compounded in oral suspensions using an internationally used suspending vehicle (SyrSpend SF PH4): acetazolamide 25.0 mg/mL, baclofen 10.0 mg/mL, dipyridamole 10.0 mg/mL, mebeverine hydrochloride 10.0 mg/mL, propylthiouracil 5.0 mg/mL, quinidine sulfate 10.0 mg/mL, and topiramate 5.0 mg/mL. All suspensions were stored both at controlled refrigerated (2°C to 8°C) and room temperature (20°C to 25°C)...
July 2017: International Journal of Pharmaceutical Compounding
https://www.readbyqxmd.com/read/28719364/is-there-a-link-between-self-perceived-stress-and-physical-activity-levels-in-scottish-adolescents
#14
Joe Cowley, John Kiely, Dave Collins
Purpose Accumulating life stress is a driving factor underlying the most pervasive, incapacitating health conditions in 21st century, First World societies. The most widely supported strategy, for remediating the negative health consequences of elevated life stress, is physical activity (PA). Evidence also suggests accumulating life stress impedes PA uptake. Thus, ironically, persistently elevated life stress not only negatively impacts multiple dimensions of health, simultaneously it may also reduce likelihood of participation in the most effective remediating strategy, PA...
July 18, 2017: International Journal of Adolescent Medicine and Health
https://www.readbyqxmd.com/read/28719354/thymol-and-carvacrol-strongly-inhibit-biofilm-formation-and-growth-of-carbapenemase-producing-gram-negative-bacilli
#15
P Raei, T Pourlak, M Y Memar, N Alizadeh, M Aghamali, E Zeinalzadeh, M Asgharzadeh, H S Kafil
Discovery of novel drugs with new mechanisms of action and without cross-reaction with current therapeutic agents is crucial in the management of infections caused by multi-drug resistant (MDR) bacteria. The aim of the present study was to investigate effects of carvacrol and thymol on biofilm formation and antimicrobial activity against different carbapenemase-producing Gram negative bacilli. The antimicrobial and antibiofilm effect of thymol and carvacrol was investigated against strains harboring different genes related to carbapenemase resistance...
May 20, 2017: Cellular and Molecular Biology
https://www.readbyqxmd.com/read/28719346/virulence-genes-in-biofilm-producer-enterococcus-faecalis-isolates-from-root-canal-infections
#16
M Akbari Aghdam, M H Soroush Barhaghi, M Aghazadeh, F Jafari, M Beomide Hagh, M Haghdoost, M Y Memar, M Ahangarzadeh Rezaee, H Samadi Kafil
Enterococcus faecalis is occurring in opportunistic infections involving the oral cavity. This study aimed to evaluate the presence of E. faecalis virulence genes in dental root canal isolates recovered from advanced chronic periodontitis patients. One hundred E. faecalis isolated from dental root canal during July 2015 to Oct 2016. After analysis of biofilm formation by the semi-quantitative determination in 96-well flat bottom polystyrene plates, the presence of asa, esp, efaA, ace, ebpR, gel and hyl gene were studied by PCR...
May 20, 2017: Cellular and Molecular Biology
https://www.readbyqxmd.com/read/28719139/identification-of-metabolites-in-human-and-rat-urine-after-oral-administration-of-xiao-qing-long-tang-granule-using-ultra-high-performance-liquid-chromatography-combined-with-quadrupole-time-of-flight-mass-spectrometry
#17
Lei Zhou, Qiang Zhang, Wen Qi, Shuai Yan, Jialin Qu, Toshiaki Makino, Dan Yuan
Xiao-Qing-Long-Tang is a traditional Chinese formula used for the treatment of cold syndrome, bronchitis, and nasal allergies for thousands of years. However, the in vivo integrated metabolism of its multiple components and the active chemical constituents of Xiao-Qing-Long-Tang remain unknown. In this study, a method using ultra high performance liquid chromatography coupled with quadrupole time-of-flight tandem mass spectrometry was established for the detection and identification of the metabolites in human and rat urine after oral administration of Xiao-Qing-Long-Tang...
July 18, 2017: Journal of Separation Science
https://www.readbyqxmd.com/read/28719106/altered-pulmonary-gas-transfer-capacity-and-capillary-blood-volume-in-pediatric-crohn-s-disease
#18
Marie Verstraete, Marie-Luce Choukroun, Valerie Siao-Him Fa, Michael Fayon, Laurent Rebouissoux, Raphael Enaud, Thierry Lamireau
OBJECTIVES: To describe diffusing capacity for carbon monoxide (DLCO) and its components, that is, membrane diffusing capacity (DmCO) and pulmonary capillary blood volume (Vc) in children with Crohn's disease (CD), and to investigate the correlation between these parameters and disease activity. WORKING HYPOTHESIS: The most common lung function abnormalities are a reduced pulmonary DLCO and small airways disorders which are in many instances, clinically silent. No valid explanations have been proposed regarding the modifications in gas transfer capacity in active CD...
August 2017: Pediatric Pulmonology
https://www.readbyqxmd.com/read/28719051/the-binding-mechanism-between-azoles-and-fgcyp51b-sterol-14%C3%AE-demethylase-of-fusarium-graminearum
#19
Hengwei Qian, Meilin Duan, Xiaomei Sun, Mengyu Chi, Ying Zhao, Wenxing Liang, Juan Du, Jinguang Huang, Baodu Li
BACKGROUND: Fusarium graminearum is the main pathogen of Fusarium Head Blight (FHB), a worldwide plant disease and one of the major wheat diseases in China. The control of the FHB is mainly dependent on the application of DMIs fungicides. Fungal sterol 14α-demethylase enzymes (CYP51) are the main target for DMIs fungicides. In order to investigate the binding mechanism between azoles and CYP51B in F.graminearum, the molecular modeling study and biological evaluation were performed. RESULTS: Firstly, the homology model based on the crystal structure of Aspergillus fumigatus was built...
July 18, 2017: Pest Management Science
https://www.readbyqxmd.com/read/28719007/validating-activity-indices-from-camera-traps-for-commensal-rodents-and-other-wildlife-in-and-around-farm-buildings
#20
Mark Lambert, Fiona Bellamy, Richard Budgey, Rebecca Callaby, Julia Coats, Janet Talling
BACKGROUND: Indices of rodent activity are used as indicators of population change during field evaluation of rodenticides. We investigated the potential for using camera traps to determine activity indices for commensal rodents living in and around farm buildings, and sought to compare these indices against previously calibrated survey methods. RESULTS: We recorded 41, 263 images of 23 species including Norway rats (Rattus norvegicus Berk.) and house mice (Mus musculus L...
July 18, 2017: Pest Management Science
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