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https://www.readbyqxmd.com/read/28222304/fabrication-of-novel-visible-light-driven-agi-g-c3n4-composites-with-enhanced-visible-light-photocatalytic-activity-for-diclofenac-degradation
#1
Wei Zhang, Li Zhou, Jun Shi, Huiping Deng
A visible-light-driven heterostructured AgI/g-C3N4 was prepared by a deposition-precipitation method. The composition, structure, morphology, and optical properties of the photocatalyst were characterized by Brunauer-Emmett-Teller method (BET), X-ray powder diffraction (XRD), Fourier transform-infrared spectroscopy (FTIR), X-ray photoelectron spectroscopy (XPS), transmission electron microscope (TEM), scanning electron microscope (SEM), UV-vis diffused reflectance spectroscopy (DRS), photoluminescence spectroscopy (PL), photocurrent, and electrochemical impedance spectroscopy (EIS), respectively...
February 14, 2017: Journal of Colloid and Interface Science
https://www.readbyqxmd.com/read/28219187/-clinical-application-of-acutegastrointestinal-injury-grading-system-assocaited-with-clinical-severity-outcome-in-critically-ill-patients-a-multi-center-prospective-observational-study
#2
B C Hu, R H Sun, A P Wu, Y Ni, J Q Liu, L J Ying, Q P Xu, G P Ge, Y C Shi, C W Liu, L Xu, R H Lin, R L Jiang, J Lu, Y N Zhu, W D Wu, X J Ding, B Xie
Objective: To investigate the feasibility of utilizing the current acute gastrointestinal injury(AGI) grading system, and explore the association of severity of AGI grade with clinical outcome in critically ill patients. Methods: The adult patients from 14 general ICUs in Zhejiang Province with an expected admission to ICU for at least 24 h were recruited, and all clinical, laboratory, and survival data were prospectively collected. The AGI grade was daily assessed based on GIsymptoms, feeding details and organ dysfunctionon the first week of admission to ICU...
February 7, 2017: Zhonghua Yi Xue za Zhi [Chinese medical journal]
https://www.readbyqxmd.com/read/28199414/direct-and-transgenerational-effects-of-low-doses-of-perinatal-di-2-ethylhexyl-phthalate-dehp-on-social-behaviors-in-mice
#3
Kayla M Quinnies, Erin P Harris, Rodney W Snyder, Susan S Sumner, Emilie F Rissman
Di-(2-ethylhexyl) phthalate (DEHP) is an endocrine disrupting chemical commonly used as a plasticizer in medical equipment, food packaging, flooring, and children's toys. DEHP exposure during early development has been associated with adverse neurobehavioral outcomes in children. In animal models, early exposure to DEHP results in abnormal development of the reproductive system as well as altered behavior and neurodevelopment. Based on these data, we hypothesized that developmental exposure to DEHP would decrease social interactions and increase anxiety-like behaviors in mice in a dose-dependent manner, and that the effects would persist over generations...
2017: PloS One
https://www.readbyqxmd.com/read/28141493/functional-amyloids-in-streptococcus-mutans-their-use-as-targets-of-biofilm-inhibition-and-initial-characterization-of-smu_63c
#4
Richard N Besingi, Iwona B Wenderska, Dilani B Senadheera, Dennis G Cvitkovitch, Joanna R Long, Zezhang T Wen, L Jeannine Brady
Amyloids have been identified as functional components of the extracellular matrix of bacterial biofilms. Streptococcus mutans is an established etiologic agent of dental caries and biofilm dweller. In addition to the previously identified amyloidogenic adhesin P1 (aka AgI/II, PAc), we show that the naturally occurring Antigen A derivative of S. mutans wall-associated protein A (WapA), and the secreted protein SMU_63c, can also form amyloid fibrils. P1, WapA and SMU_63c were found to significantly influence biofilm development and architecture, and all three proteins were shown by immunogold electron microscopy to reside within fibrillar extracellular matrix of the biofilms...
January 28, 2017: Microbiology
https://www.readbyqxmd.com/read/28137317/high-added-value-of-a-population-based-participatory-surveillance-system-for-community-acute-gastrointestinal-respiratory-and-influenza-like-illnesses-in-sweden-2013-2014-using-the-web
#5
A Pini, H Merk, A Carnahan, I Galanis, E VAN Straten, K Danis, M Edelstein, A Wallensten
In 2013-2014, the Public Health Agency of Sweden developed a web-based participatory surveillance system, Hӓlsorapport, based on a random sample of individuals reporting symptoms weekly online, to estimate the community incidence of self-reported acute gastrointestinal (AGI), acute respiratory (ARI) and influenza-like (ILI) illnesses and their severity. We evaluated Hӓlsorapport's acceptability, completeness, representativeness and its data correlation with other surveillance data. We calculated response proportions and Spearman correlation coefficients (r) between (i) incidence of illnesses in Hӓlsorapport and (ii) proportions of specific search terms to medical-advice website and reasons for calling a medical advice hotline...
January 31, 2017: Epidemiology and Infection
https://www.readbyqxmd.com/read/28134498/dipyrrin-bis-n-confused-porphyrin-conjugate-synthesis-synergetic-ligation-and-chirality-sensing
#6
Wojaczyński Jacek, Justyna Maciołek, Piotr Jan Chmielewski
A fully conjugated system 4 consisting of two 2-aza-21-carbaporphyrin (NCP) subunits bridged by dipyrrin was synthesized by a highly selective condensation of 3-pyrrole-NCP 2 with aryl aldehydes. The free base 4 as well as its silver(III) complex 5 exhibited flexibility of the bridge allowing synergetic binding of AgI, thus leading to a mixed-valence tetraporphyrinic assembly consisting of eight silver atoms which was characterized both in the solid state and in solution. Binding of chiral acid by 4 and 5 was shown by observation of an induced optical activity of the adducts...
January 30, 2017: Chemistry, An Asian Journal
https://www.readbyqxmd.com/read/28128684/aortic-graft-infections-after-emergency-and-non-emergency-reconstruction-incidence-treatment-and-long-term-outcome
#7
Jennifer Pettersson, Alireza Daryapeyma, Peter Gillgren, Rebecka Hultgren
BACKGROUND: Aortic graft infections (AGI) are rare, with an incidence of 0.6%-3% among patients with aortic grafts. Most previous reports are based on single-center material with limited follow-up. Because of the paucity of these cases, the optimal treatment remains unclear. A factor possibly affecting the mortality rate of these infections is whether the index procedure was emergency or elective. The aim of this study was to investigate the incidence of AGI and assess the long-term outcome after emergency and non-emergency aortic reconstruction in a large population...
January 27, 2017: Surgical Infections
https://www.readbyqxmd.com/read/28124616/comparison-of-hcv-core-and-coree1e2-virus-like-particles-generated-by-stably-transfected-leishmania-tarentolae-for-stimulation-of-th1-immune-responses-in-mice
#8
Azam Bolhassani, Noushin Davoudi, Elnaz Agi
Virus-like particles (VLPs) could be improved into successful immunogens as well as a potent delivery vehicle, but however, the current expression systems for VLPs production have some limitations. Recently, we developed a novel strategy to produce two HCV VLPs containing core or coreE1E2 proteins using stably transfected Leishmania tarentolae promastigotes. Then, BALB/c mice were injected by both viral like particles in different immunization strategies such as homologous DNA-, homologous VLP-, and heterologous DNA/ VLP-based immunizations...
January 25, 2017: Current Drug Delivery
https://www.readbyqxmd.com/read/28105617/-establishment-of-prediction-model-of-acute-gastrointestinal-injury-classification-of-critically-ill-patients-based-on-digital-gastrointestinal-sounds-monitoring
#9
Yan Wang, Jianrong Wang, Weiwei Liu, Guangliang Zhang
OBJECTIVE: To develop the prediction model of acute gastrointestinal injury (AGI) classification of critically ill patients. METHODS: The binary channel gastrointestinal sounds (GIS) monitor system was used to gather and analyze the GIS of 60 consecutive critically ill patients who were admitted in Critical Care Medicine of PLA General Hospital from April 2015 to November 2015 (patients with chronic gastrointestinal disease or history of gastrointestinal surgery were excluded)...
January 25, 2017: Zhonghua Wei Chang Wai Ke za Zhi, Chinese Journal of Gastrointestinal Surgery
https://www.readbyqxmd.com/read/28104708/prevalence-and-determinants-of-current-and-secondhand-smoking-in-greece-results-from-the-global-adult-tobacco-survey-gats-study
#10
George Rachiotis, Anastasia Barbouni, Antonis Katsioulis, Eleni Antoniadou, Konstantinos Kostikas, Kyriakoula Merakou, Kallirrhoe Kourea, Rula N Khoury, Agis Tsouros, Jenny Kremastinou, Christos Hadjichristodoulou
OBJECTIVES: Greece is one of the leading tobacco-producing countries in European Union, and every year over 19 000 Greeks die from tobacco-attributable diseases. The aim of the present study was to provide nationally representative estimates on current and secondhand smoking prevalence in Greece and their determinants. DESIGN: Cross-sectional. SETTING: Greece. PARTICIPANTS: A total of 4359 individuals participated in the Global Adult Tobacco Survey (GATS), a household survey of adults ≥15 years old (overall response rate 69%)...
January 19, 2017: BMJ Open
https://www.readbyqxmd.com/read/28097295/association-of-systemic-medication-use-with-intraocular-pressure-in-a-multiethnic-asian-population-the-singapore-epidemiology-of-eye-diseases-study
#11
Henrietta Ho, Yuan Shi, Jacqueline Chua, Yih-Chung Tham, Sing Hui Lim, Tin Aung, Tien Yin Wong, Ching-Yu Cheng
Importance: There is limited understanding of the associations between systemic medication use and intraocular pressure (IOP) in the general population. Objective: To examine the association between systemic medication use and IOP in a multiethnic Asian population. Design, Setting, and Participants: In this post hoc analysis of the Singapore Epidemiology of Eye Diseases study, a population-based study of 10 033 participants (78.7% response rate) from 3 racial/ethnic groups (Chinese [recruited from February 9, 2009, through December 19, 2011], Malays [recruited from August 16, 2004, though July 10, 2006], and Indians [recruited from May 21, 2007, through December 29, 2009]), participants with glaucoma, previous ocular surgery, or trauma and an IOP asymmetry greater than 5 mm Hg between eyes were excluded...
January 12, 2017: JAMA Ophthalmology
https://www.readbyqxmd.com/read/28094945/pd-ii-ag-i-catalyzed-room-temperature-reaction-of-%C3%AE-hydroxy-lactams-mechanism-scope-and-antistaphylococcal-activity
#12
Manali Dutta, Santi M Mandal, Rupa Pegu, Sanjay Pratihar
The present work reports a Pd(II)/Ag(I)-promoted amidoalkylation reaction involving various γ-hydroxy lactams and C/O/S nucleophiles at room temperature. The dual mode of activation of both the electrophile and nucleophile by in situ generated catalytically active cationic Pd(II) species facilitates the reaction at room temperature. Among the synthesized isoindoline derivatives, three compounds are found to be active against vancomycin and methicillin-resistant S. aureus strain with appreciable MIC values.
January 27, 2017: Journal of Organic Chemistry
https://www.readbyqxmd.com/read/28094926/the-room-temperature-superionic-conductivity-of-silver-iodide-nanoparticles-under-pressure
#13
Takayuki Yamamoto, Mitsuhiko Maesato, Naohisa Hirao, Saori I Kawaguchi, Shogo Kawaguchi, Yasuo Ohishi, Yoshiki Kubota, Hirokazu Kobayashi, Hiroshi Kitagawa
We performed variable-temperature synchrotron powder X-ray diffraction measurements and impedance spectroscopy under pressure for silver iodide (AgI) nanoparticles with a diameter of 11 nm. The superionic conducting α-phase of AgI nanoparticles was successfully stabilized down to at least 20 °C by applying a pressure of 0.18 GPa, whereas the transition temperature was 147 °C in bulk AgI at ambient pressure. To our knowledge, this is the first example of the α-phase of AgI existing stably at room temperature...
February 1, 2017: Journal of the American Chemical Society
https://www.readbyqxmd.com/read/28045006/electrochemical-direct-writing-and-erasing-of-silver-nanostructures-on-phosphate-glass-using-atomic-force-microscopy
#14
Shama F Barna, Kyle E Jacobs, Glennys A Mensing, Placid M Ferreira
This paper reports a liquid-free, mask-less electrochemical direct-write lithographic technique using an atomic force microscopy (AFM) probe for writing silver nanostructures in minutes on an optically transparent substrate. Under ambient conditions, silver is locally and controllably extracted to the surface of superionic (AgI)0.25 (AgPO3)0.75 glass by bringing a conductive AFM probe tip in contact with it, biasing the probe with a negative voltage, and regulating the resulting current. The growth mechanism of the resulting nanostructure is explored by extracting silver with a stationary AFM tip on the surface of the silver...
January 3, 2017: Nanotechnology
https://www.readbyqxmd.com/read/28013350/textural-features-of-18-f-fluorodeoxyglucose-positron-emission-tomography-scanning-in-diagnosing-aortic-prosthetic-graft-infection
#15
Ben R Saleem, Roelof J Beukinga, Ronald Boellaard, Andor W J M Glaudemans, Michel M P J Reijnen, Clark J Zeebregts, Riemer H J A Slart
BACKGROUND: The clinical problem in suspected aortoiliac graft infection (AGI) is to obtain proof of infection. Although (18)F-fluorodeoxyglucose ((18)F-FDG) positron emission tomography scanning (PET) has been suggested to play a pivotal role, an evidence-based interpretation is lacking. The objective of this retrospective study was to examine the feasibility and utility of (18)F-FDG uptake heterogeneity characterized by textural features to diagnose AGI. METHODS: Thirty patients with a history of aortic graft reconstruction who underwent (18)F-FDG PET/CT scanning were included...
December 24, 2016: European Journal of Nuclear Medicine and Molecular Imaging
https://www.readbyqxmd.com/read/28011358/anticoagulation-therapy-in-patients-suffering-from-aneurysmal-subarachnoid-hemorrhage-influence-on-functional-outcome-a-single-center-series-and-multivariate-analysis
#16
Patrick Schuss, Alexis Hadjiathanasiou, Simon Brandecker, Ági Güresir, Valeri Borger, Christian Wispel, Hartmut Vatter, Erdem Güresir
INTRODUCTION: Favourable outcome in patients presenting with aneurysmal subarachnoid hemorrhage (SAH) is determined by several factors. Nevertheless, data on the influence of prior use of oral anticoagulation drugs on functional outcome in patients suffering from SAH is scarce. We therefore analyzed our institutional data. METHODS: From January 2009 to October 2015, 480 patients suffering from aneurysmal SAH were admitted to our institution. Information, including patient characteristics, treatment modality, aneurysm size and location, radiological features, and functional neurological outcome were assessed and further analyzed...
December 21, 2016: World Neurosurgery
https://www.readbyqxmd.com/read/28010166/reappraisal-and-perspectives-of-clinical-drug-drug-interaction-potential-of-%C3%AE-glucosidase-inhibitors-such-as-acarbose-voglibose-and-miglitol-in-the-treatment-of-type-2-diabetes-mellitus
#17
Ranjeet Prasad Dash, R Jayachandra Babu, Nuggehally R Srinivas
1. Amidst the new strategies being developed for the management of type 2 diabetes mellitus (T2DM) with both established and newer therapies, alpha glucosidase inhibitors (AGIs) have found a place in several treatment protocols. 2. The objectives of the review were: (a) to compile and evaluate the various clinical pharmacokinetic drug interaction data for AGIs such as acarbose, miglitol and voglibose; (b) provide perspectives on the drug interaction data since it encompasses coadministered drugs in several key areas of comorbidity with T2DM...
January 19, 2017: Xenobiotica; the Fate of Foreign Compounds in Biological Systems
https://www.readbyqxmd.com/read/28006744/understanding-influential-factors-on-implementing-green-supply-chain-management-practices-an-interpretive-structural-modelling-analysis
#18
Maher A N Agi, Rohit Nishant
In this study, we establish a set of 19 influential factors on the implementation of Green Supply Chain Management (GSCM) practices and analyse the interaction between these factors and their effect on the implementation of GSCM practices using the Interpretive Structural Modelling (ISM) method and the "Matrice d'Impacts Croisés Multiplication Appliquée à un Classement" (MICMAC) analysis on data compiled from interviews with supply chain (SC) executives based in the Gulf countries (Middle East region). The study reveals a strong influence and driving power of the nature of the relationships between SC partners on the implementation of GSCM practices...
March 1, 2017: Journal of Environmental Management
https://www.readbyqxmd.com/read/27973891/iodine-migration-and-degradation-of-perovskite-solar-cells-enhanced-by-metallic-electrodes
#19
Cristina Besleaga, Laura Elena Abramiuc, Viorica Stancu, Andrei Gabriel Tomulescu, Marian Sima, Liliana Trinca, Neculai Plugaru, Lucian Pintilie, George Alexandru Nemnes, Mihaiela Iliescu, Halldor Gudfinnur Svavarsson, Andrei Manolescu, Ioana Pintilie
We monitored the evolution in time of pinhole-free structures based on FTO/TiO2/CH3NH3PbI2.6Cl0.4 layers, with and without spiro-OMeTAD and counter electrodes (Ag, Mo/Ag, and Au), aged at 24 °C in a dark nitrogen atmosphere. In the absence of electrodes, no degradation occurs. While devices with Au show only a 10% drop in power conversion efficiency, remaining stable after a further overheating at 70 °C, >90% is lost when using Ag, with the process being slower for Mo/Ag. We demonstrate that iodine is dislocated by the electric field between the electrodes, and this is an intrinsic cause for electromigration of I(-) from the perovskite until it reaches the anode...
December 15, 2016: Journal of Physical Chemistry Letters
https://www.readbyqxmd.com/read/27935202/corrigendum-synthesis-structure-and-catalytic-activity-of-nhc-agi-carboxylate-complexes
#20
Valerie H L Wong, Sai V C Vummaleti, Luigi Cavallo, Andrew J P White, Steven P Nolan, King Kuok Mimi Hii
No abstract text is available yet for this article.
December 12, 2016: Chemistry: a European Journal
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