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https://www.readbyqxmd.com/read/29888348/atomic-scale-reversible-opto-structural-switching-of-few-atom-luminescent-silver-clusters-confined-in-lta-zeolites
#1
Saleh Aghakhani, Didier Grandjean, Wouter Baekelant, Eduardo Coutiño-Gonzalez, Eduard Fron, Kristina Kvashnina, Maarten B J Roeffaers, Johan Hofkens, Bert F Sels, Peter Lievens
Luminescent silver clusters (AgCLs) stabilized inside partially Ag exchanged Na LTA zeolites show a remarkable reversible on-off switching of their green-yellowish luminescence that is easily tuned by a hydration and dehydration cycle, making them very promising materials for sensing applications. We have used a unique combination of photoluminescence (PL), UV-visible-NIR Diffuse Reflectance (DRS), X-ray absorption fine structure (XAFS), Fourier Transform-Infrared (FTIR) and electron spin resonance (ESR) spectroscopies to unravel the atomic-scale structural changes responsible for the reversible optical behavior of the confined AgCLs in LTA zeolites...
June 11, 2018: Nanoscale
https://www.readbyqxmd.com/read/29869937/twenty-four-hour-time-dependency-of-clopidogrel-effects-in-patients-with-acute-coronary-syndromes-the-cicad-study
#2
Susanne Claudia Gruber, Matthias Karl Freynhofer, Martin Willheim, Thomas Werner Weiss, Florian Egger, Wolfgang Hübl, Kurt Huber
Long-term evidence shows an increased risk of cardiovascular events in the morning hours and recent studies in aspirin-treated patients have shown increased platelet reactivity at the end of the dosing interval. Similar pharmacodynamic analyses of adenosine-diphosphate (ADP) receptor inhibitors are scarce. We therefore investigated changes in clopidogrel-dependent platelet function and activation over 24 h and whether enhanced platelet turnover might explain diurnal variability of platelet function and activation...
June 5, 2018: Platelets
https://www.readbyqxmd.com/read/29861030/reductions-in-aggressive-behavior-within-the-context-of-a-universal-social-emotional-learning-program-classroom-and-student-level-mechanisms
#3
Sam Portnow, Jason T Downer, Joshua Brown
The present study uses data from 35 third through fifth-grade urban classrooms and 531 students to examine the extent to which student-level social and emotional skills (e.g., low hostile attribution bias and low aggressive interpersonal negotiation strategies) and emotionally supportive learning environments predict aggressive behavior over the course of a school year. Results of multiple regression analyses indicated that across teacher-reported measures of aggressive behavior, more classroom emotional support over the course of the school year predicted less aggressive behavior in spring, particularly for children whose hostile attribution bias decreased over the course of the year...
June 2018: Journal of School Psychology
https://www.readbyqxmd.com/read/29849325/idiopathic-spinal-epidural-lipomatosis-causing-cauda-equina-syndrome
#4
John B Bushkar, Lacey P MenkinSmith, Diann M Krywko
Spinal epidural lipomatosis (SEL) is a rare condition defined by the hypertrophy of adipose tissue in the spinal epidural space, often resulting in compression of nerves in the region affected.1 This case describes a 64-year-old man who presented with cauda equina syndrome. Magnetic resonance imaging of the spine revealed extensive SEL of the lumbar spine. He underwent decompression and fusion with subsequent improvement of symptoms. This is one of the few cases reported of lumbar SEL in a non-obese patient in absence of long-term corticosteroid usage...
November 2017: Clinical practice and cases in emergency medicine
https://www.readbyqxmd.com/read/29805311/selenoprotein-s-attenuates-tumor-necrosis-factor-%C3%AE-induced-dysfunction-in-endothelial-cells
#5
Siyuan Cui, Lili Men, Yu Li, Yingshuo Zhong, Shanshan Yu, Fang Li, Jianling Du
Endothelial dysfunction, partly induced by inflammatory mediators, is known to initiate and promote several cardiovascular diseases. Selenoprotein S (SelS) has been identified in endothelial cells and is associated with inflammation; however, its function in inflammation-induced endothelial dysfunction has not been described. We first demonstrated that the upregulation of SelS enhances the levels of nitric oxide and endothelial nitric oxide synthase in tumor necrosis factor- (TNF-) α -treated human umbilical vein endothelial cells (HUVECs)...
2018: Mediators of Inflammation
https://www.readbyqxmd.com/read/29801373/threshold-current-temperature-dependence-of-quantum-dot-photonic-crystal-surface-emitting-lasers-with-respect-to-gain-cavity-detuning
#6
Ming-Yang Hsu, Gray Lin, Zong-Lin Li, Po-Chou Pan
We investigate threshold current temperature dependence of electrically injected quantum-dot (QD) photonic crystal (PC) surface-emitting lasers (SELs) with respect to wavelength detuning between QD gain peak and PC cavity resonance. The lasing emissions cover wavelengths from 1283 nm to 1318 nm. Almost infinite characteristic temperature is realized at certain temperature range for PCSEL with large negative gain-cavity detuning. Moreover, band-edge lasing mode is identified in our "PC slab-on-substrate" structure, and its far-field distribution is characterized as doughnut-shaped beam with azimuthal polarization...
May 14, 2018: Optics Express
https://www.readbyqxmd.com/read/29800342/performance-insulin-sensitivity-carcass-characteristics-and-fatty-acid-profile-of-beef-from-steers-fed-microalgae
#7
J R R Carvalho, K M Brennan, M M Ladeira, J P Schoonmaker
Heterotrophic production of microalgae biomass provides a consistent, high quality source of docosahexaenoic acid (DHA; C22:6 n-3) in triglyceride oils that could be used as a ration supplement for feedlot steers to improve nutritional qualities of beef. Sixty Angus × Simmental steers (438 ± 6.4 kg) were allotted to 2 treatments (30 steers each, 6 pens, 5 steers/pen) to determine the effects of ForPLUS (DHA-rich microalgae Aurantiochytrium limacinum; 63.6 % fat; 17.9% DHA; 30 mg/kg Sel-Plex; Alltech Inc.) on performance, insulin sensitivity, LM fatty acid composition, and meat quality...
May 25, 2018: Journal of Animal Science
https://www.readbyqxmd.com/read/29799448/hydrophobic-amino-acid-content-in-onions-as-potential-fingerprints-of-geographical-origin-the-case-of-rossa-da-inverno-sel-rojo-duro
#8
Federica Ianni, Antonella Lisanti, Maura Marinozzi, Emidio Camaioni, Lucia Pucciarini, Andrea Massoli, Roccaldo Sardella, Luciano Concezzi, Benedetto Natalini
In this study, we were interested in comparing the amino acid profile in a specific variety of onion, Rossa da inverno sel. Rojo Duro , produced in two different Italian sites: the Cannara (Umbria region) and Imola (Emilia Romagna region) sites. Onions were cultivated in a comparable manner, mostly in terms of the mineral fertilization, seeding, and harvesting stages, as well as good weed control. Furthermore, in both regions, the plants were irrigated by the water sprinkler method and subjected to similar temperature and weather conditions...
May 25, 2018: Molecules: a Journal of Synthetic Chemistry and Natural Product Chemistry
https://www.readbyqxmd.com/read/29797169/predation-and-behavioral-changes-in-the-neotropical-lacewing-chrysoperla-externa-hagen-neuroptera-chrysopidae-exposed-to-lambda-cyhalothrin
#9
René Fernando Luna, Luziani Rezende Bestete, Jorge Braz Torres, Christian Sherley Araújo da Silva-Torres
Pyrethroid insecticides are widely recommended against various defoliating pest species, but usually lack efficacy against sucking pests such as aphids, which are preferred prey of lacewing larvae. Interaction of pyrethroids and lacewings are likely to occur in fields infested by both defoliating and sap-sucking pests and should provide a complementary control. Therefore, our study aimed to estimate dose-mortality curves and behavioral changes by Chrysoperla externa exposed to lambda-cyhalothrin. We tested the susceptibility of two populations from different locations and insecticide history exposure through topical application...
May 24, 2018: Ecotoxicology
https://www.readbyqxmd.com/read/29784065/changes-in-socio-economic-level-and-their-impact-on-nutritional-status-a-follow-up-study-among-young-chilean-adults
#10
Hugo Amigo, Alejandra Vásquez, Patricia Bustos
OBJECTIVE: To verify the association between changes in socio-economic level (SEL) and nutritional status of Chilean adults over a 10-year period. DESIGN: Concurrent cohort study.Setting/SubjectsIndividuals born from 1974 to 1978 in the Valparaíso Region of Chile were evaluated between 2000 and 2002 (n 1232) and again between 2010 and 2012 (n 796). SEL was characterized according to the occupation and educational level of the head of household. Nutritional status was based on measurement of BMI and waist circumference (WC)...
May 22, 2018: Public Health Nutrition
https://www.readbyqxmd.com/read/29770781/eus-guided-tissue-sampling-with-a-20-gauge-core-biopsy-needle-for-the-characterization-of-gastrointestinal-subepithelial-lesions-a-multicenter-study
#11
Filippo Antonini, Gabriele Delconte, Lorenzo Fuccio, Germana De Nucci, Carlo Fabbri, Elia Armellini, Leonardo Frazzoni, Adele Fornelli, Andrea Magarotto, Enzo Mandelli, Pietro Occhipinti, Enzo Masci, Gianpiero Manes, Giampiero Macarri
Background and Objective: A new 20-gauge (G) biopsy needle with a core-trap technology has been developed with a large core size and enhanced flexibility. The aim of this multicenter study was to determine the feasibility, efficacy, and safety of EUS-guided fine-needle biopsy (EUS-FNB) with the new 20G needle in diagnosing subepithelial lesions (SELs). Materials and Methods: Retrospectively collected data from consecutive patients with SELs undergoing EUS-FNB with the 20G needle at five centers were analyzed...
May 17, 2018: Endoscopic Ultrasound
https://www.readbyqxmd.com/read/29747716/effects-of-antiparkinson-medication-on-cognition-in-parkinson-s-disease-a-systematic-review
#12
Marc-André Roy, Maxime Doiron, Jessica Talon-Croteau, Nicolas Dupré, Martine Simard
OBJECTIVE: This study aimed to systematically review the effects of currently prescribed antiparkinson medication on cognition in patients with mild-to-moderate Parkinson's disease (PD) who were either cognitively intact or mildly impaired. METHODS: English- and French-language studies published between 1969 and 2017 were accessed via MedLine, PsychNET, EMBASE and EBSCO databases. Methodological quality (MQ) was evaluated with the quality assessment instrument of the Cochrane Collaboration Depression, Anxiety and Neurosis Review (scores from 0% to 44% indicate very low quality; scores from 45% to 64% indicate low quality; scores from 65% to 84% indicate medium quality; and scores from 85% to 100% indicate high quality)...
May 11, 2018: Canadian Journal of Neurological Sciences. le Journal Canadien des Sciences Neurologiques
https://www.readbyqxmd.com/read/29740381/effect-of-statins-on-survival-following-stroke-in-patients-with-cancer
#13
Ye Sel Kim, Moo-Seok Park, Jun-Hwa Lee, Jong-Won Chung, Mi Ji Lee, Chi Kyung Kim, Jin-Man Jung, Kyungmi Oh, Oh Young Bang, Geong-Moon Kim, Ji-Mi Choi, Juneyoung Lee, Chin Sang Chung, Kwang Ho Lee, Woo-Keun Seo
The objective of this study was to investigate the potential benefits of statin therapy initiation in acute stroke in patients with active cancer. This study was conducted in two parts. First, data from patients who are presented with stroke and active cancer were obtained from prospectively collected multicenter hospital-based stroke registries. Patients were classified into statin user and non-user groups; the statin group was further divided into low-potency and high-potency statin subgroups. The primary outcome was time to mortality...
2018: Frontiers in Neurology
https://www.readbyqxmd.com/read/29738513/extrinsic-calibration-of-a-laser-galvanometric-setup-and-a-range-camera
#14
Seppe Sels, Boris Bogaerts, Steve Vanlanduit, Rudi Penne
Currently, galvanometric scanning systems (like the one used in a scanning laser Doppler vibrometer) rely on a planar calibration procedure between a two-dimensional (2D) camera and the laser galvanometric scanning system to automatically aim a laser beam at a particular point on an object. In the case of nonplanar or moving objects, this calibration is not sufficiently accurate anymore. In this work, a three-dimensional (3D) calibration procedure that uses a 3D range sensor is proposed. The 3D calibration is valid for all types of objects and retains its accuracy when objects are moved between subsequent measurement campaigns...
May 8, 2018: Sensors
https://www.readbyqxmd.com/read/29724270/enterotoxin-gene-profile-of-methicillin-resistant-staphylococcus-pseudintermedius-isolates-from-dogs-humans-and-the-environment
#15
Nathita Phumthanakorn, Punpichaya Fungwithaya, Pattrarat Chanchaithong, Nuvee Prapasarakul
PURPOSE: This study aimed to detect and identify staphylococcal enterotoxin (SE) genes in methicillin-resistant Staphylococcus pseudintermedius (MRSP) strains from different sources, and to investigate the relationship between their sequence types (STs) and SE gene patterns. METHODOLOGY: The profiles of 17 SE genes in 93 MRSP strains isolated from dogs (n=43), humans (n=18) and the environment (n=32) were detected by PCR. Multilocus sequence typing (MLST), SCCmec typing and pulsed-field gel electrophoresis (PFGE) were used to analyse the clonal relatedness between the molecular type and SE gene profiles...
May 4, 2018: Journal of Medical Microbiology
https://www.readbyqxmd.com/read/29721770/selenoprotein-s-inhibits-inflammation-induced-vascular-smooth-muscle-cell-calcification
#16
Yali Ye, Weixia Bian, Fen Fu, Jian Hu, Hongmei Liu
Vascular calcification is a prominent feature of many diseases including atherosclerotic cardiovascular disease (CVD), leading to high morbidity and mortality rates. A significant association of selenoprotein S (SelS) gene polymorphism with atherosclerotic CVD has been reported in epidemiologic studies, but the underlying mechanism is far from clear. To investigate the role of SelS in inflammation-induced vascular calcification, osteoblastic differentiation and calcification of vascular smooth muscle cells (VSMCs) induced by lipopolysaccharide (LPS) or tumor necrosis factor (TNF)-α were compared between the cells with and without SelS knockdown...
May 2, 2018: Journal of Biological Inorganic Chemistry: JBIC
https://www.readbyqxmd.com/read/29707889/resistance-selection-of-indoxacarb-in-helicoverpa-armigera-h%C3%A3-bner-lepidoptera-noctuidae-cross-resistance-biochemical-mechanisms-and-associated-fitness-costs
#17
Li Cui, Qinqin Wang, Haoliang Qi, Qiyuan Wang, Huizhu Yuan, Changhui Rui
BACKGROUND: The cotton bollworm Helicoverpa armigera is a worldwide insect pest with the ability to develop resistance to many insecticides. Indoxacarb, a sodium channel blocker, is an important insecticide that is used to control H. armigera. Cross-resistance, metabolic mechanisms and life history traits were established for an indoxacarb-selected (IND-SEL) population of H. armigera. RESULTS: After 11 generations of selection, the susceptibility to indoxacarb was decreased by 4...
April 29, 2018: Pest Management Science
https://www.readbyqxmd.com/read/29698447/celecoxib-use-and-circulating-oxylipins-in-a-colon-polyp-prevention-trial
#18
Jessica A Martinez, Jun Yang, Betsy C Wertheim, Denise J Roe, Alexander Schriewer, Peter Lance, David S Alberts, Bruce D Hammock, Patricia A Thompson
Drugs that inhibit cyclooxygenase (COX)-2 and the metabolism of arachidonic acid (ARA) to prostaglandin E2 are potent anti-inflammatory agents used widely in the treatment of joint and muscle pain. Despite their benefits, daily use of these drugs has been associated with hypertension, cardiovascular and gastrointestinal toxicities. It is now recognized that ARA is metabolized to a number of bioactive oxygenated lipids (oxylipins) by cyclooxygenase (COX), lipoxygenase (LOX), and cytochrome P450 (CYP450) enzymes...
2018: PloS One
https://www.readbyqxmd.com/read/29688128/emotion-differentiation-dissected-between-category-within-category-and-integral-emotion-differentiation-and-their-relation-to-well-being
#19
Yasemin Erbas, Eva Ceulemans, Elisabeth S Blanke, Laura Sels, Agneta Fischer, Peter Kuppens
Emotion differentiation, the ability to describe and label our own emotions in a differentiated and specific manner, has been repeatedly associated with well-being. However, it is unclear exactly what type of differentiation is most strongly related to well-being: the ability to make fine-grained distinctions between emotions that are relatively closely related (e.g. anger and irritation), the ability to make larger distinctions between very distinct emotions (e.g. anger and sadness), or the combination of both...
April 24, 2018: Cognition & Emotion
https://www.readbyqxmd.com/read/29669535/assessment-of-subjective-emotional-valence-and-long-lasting-impact-of-life-events-development-and-psychometrics-of-the-stralsund-life-event-list-sel
#20
Johanna König, Andrea Block, Mathias Becker, Kristin Fenske, Johannes Hertel, Sandra Van der Auwera, Kathleen Zymara, Henry Völzke, Harald Jürgen Freyberger, Hans Jörgen Grabe
BACKGROUND: Life events (LEs) are associated with future physical and mental health. They are crucial for understanding the pathways to mental disorders as well as the interactions with biological parameters. However, deeper insight is needed into the complex interplay between the type of LE, its subjective evaluation and accompanying factors such as social support. The "Stralsund Life Event List" (SEL) was developed to facilitate this research. METHODS: The SEL is a standardized interview that assesses the time of occurrence and frequency of 81 LEs, their subjective emotional valence, the perceived social support during the LE experience and the impact of past LEs on present life...
April 18, 2018: BMC Psychiatry
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