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https://www.readbyqxmd.com/read/28437979/30-hz-relative-linewidth-watt-output-power-1-65-%C3%A2%C2%B5m-continuous-wave-singly-resonant-optical-parametric-oscillator
#1
Aliou Ly, Christophe Siour, Fabien Bretenaker
We built a 1-watt cw singly resonant optical parametric oscillator operating at an idler wavelength of 1.65 µm for application to quantum interfaces. The non resonant idler is frequency stabilized by side-fringe locking on a relatively high-finesse Fabry-Perot cavity, and the influence of intensity noise is carefully analyzed. A relative linewidth down to the sub-kHz level (about 30 Hz over 2 s) is achieved. A very good long term stability is obtained for both frequency and intensity.
April 17, 2017: Optics Express
https://www.readbyqxmd.com/read/28437955/cyclic-coding-for-brillouin-optical-time-domain-analyzers-using-probe-dithering
#2
Haritz Iribas, Alayn Loayssa, Florian Sauser, Miguel Llera, Sébastien Le Floch
We study the performance limits of mono-color cyclic coding applied to Brillouin optical time-domain analysis (BOTDA) sensors that use probe wave dithering. BOTDA analyzers with dithering of the probe use a dual-probe-sideband setup in which an optical frequency modulation of the probe waves along the fiber is introduced. This avoids non-local effects while keeping the Brillouin threshold at its highest level, thus preventing the spontaneous Brillouin scattering from generating noise in the deployed sensing fiber...
April 17, 2017: Optics Express
https://www.readbyqxmd.com/read/28437893/ruthenium-acetylacetonate-in-interface-engineering-for-high-performance-planar-hybrid-perovskite-solar-cells
#3
Wei Chen, Shiqiang Luo, Zunyuan Wan, Xiyuan Feng, Xinke Liu, Zhubing He
As it already made huge effect in the commercialization of silicon and other photovoltaics, interface engineering is dispensable in the current and future evolution of hybrid perovskite solar cells (PSCs) techniques. In order to solve carriers' recombination and detention at the cathode side of planar PSCs, in this work, Ruthenium acetylacetonate (RuAcac) was successfully adopted as a reliable and stable cathode interfacial layer (CIL) to improve the inverted planar PSCs. The power conversion efficiency of the optimal devices was enhanced from 12...
April 17, 2017: Optics Express
https://www.readbyqxmd.com/read/28437891/the-therapeutic-effect-of-nano-encapsulated-and-nano-emulsion-forms-of-carvacrol-on-experimental-liver-fibrosis
#4
Jihan Hussein, Mona El-Banna, Khaled F Mahmoud, Safaa Morsy, Yasmin Abdel Latif, Dalia Medhat, Eman Refaat, Abdel Razik Farrag, Sherien M El-Daly
OBJECTIVE: The present study aimed to compare the therapeutic efficiency of nano-encapsulated and nano-emulsion carvacrol administration on liver injury in thioacetamide (TAA) treated rats. METHODS: To fulfill our target, we used sixty male albino rats classified into six groups as follow: control, nano-encapsulated carvacrol, nano-emulsion carvacrol, thioacetamide, treated nano-encapsulated carvacrol and treated nano-emulsion carvacrol groups. Blood samples were collected from all groups and the separated serum was used for analysis of the following biochemical parameters; aspartate aminotransferase (AST), alanine aminotransferase (ALT), S100 B protein, alpha fetoprotein (AFP) and caspase-3...
April 20, 2017: Biomedicine & Pharmacotherapy, Biomédecine & Pharmacothérapie
https://www.readbyqxmd.com/read/28437889/safety-of-sucrose-esters-from-physalis-peruviana-l-in-a-28-day-repeated-dose-study-in-mice
#5
Yanet C Ocampo, Daneiva C Caro, David E Rivera, Luis A Franco
Although extracts and consumed foods from Physalis species contain sucrose esters from their glandular trichomes, there is no experimental data available on their toxicological effects. As peruvioses A and B isolated from Physalis peruviana L. calyces have proved to be effective anti-inflammatory and immunomodulatory compounds, this work aimed to investigate their sub-acute toxicity study and genotoxicity. For this, CD-1(ICR) mice were treated intraperitoneally with peruvioses at doses of 2.5, 5, and 10mg/kg/day for 28 consecutive days, to simulate therapeutic and over-therapeutic dosage levels...
April 20, 2017: Biomedicine & Pharmacotherapy, Biomédecine & Pharmacothérapie
https://www.readbyqxmd.com/read/28437870/assessing-the-likelihood-and-magnitude-of-a-population-health-benefit-following-the-market-introduction-of-a-modified-risk-tobacco-product-enhancements-to-the-dynamic-population-modeler-dpm-1
#6
Annette M Bachand, Sandra I Sulsky, Geoffrey M Curtin
Researchers and those responsible for evaluating and implementing policies intended to reduce population harm must assess the potential for both intended and unintended consequences associated with those policies. Such assessments should be based on the combined dimensions of magnitude, and thus likelihood, of shifts in exposure patterns needed to produce a population benefit or harm, and magnitude of the expected population benefit or harm. In response to this assessment need, we provide a conceptual description of the dynamic population modeler, DPM(+1), as well as illustrative analyses that estimate the effects on all-cause mortality, life expectancy, and quality of life-adjusted life expectancy if exposure patterns in the population shift from a higher risk product (e...
April 24, 2017: Risk Analysis: An Official Publication of the Society for Risk Analysis
https://www.readbyqxmd.com/read/28437868/early-mortality-and-overall-survival-of-acute-myeloid-leukemia-based-on-facility-type
#7
Vijaya R Bhatt, Valerie Shostrom, Smith Giri, Krishna Gundabolu, K M Monirul Islam, Frederick R Appelbaum, Lori J Maness
Cancer health disparities may exist based on the facility type. We aimed to determine the association between the academic status of centers and outcomes of patients with acute myeloid leukemia (AML). Using the National Cancer Data Base, we compared one-month mortality and longer-term overall survival (OS) of 60,738 patients with AML, who received first course treatment between 2003-2011 at academic or non-academic centers (community cancer program, comprehensive community cancer program, and others). Multivariate analysis was done using logistic regression for one-month mortality and Cox regression with backward elimination approach for OS...
April 24, 2017: American Journal of Hematology
https://www.readbyqxmd.com/read/28437854/is-there-sufficient-evidence-for-a-causal-association-between-antiretroviral-therapy-and-diabetes-in-hiv-infected-patients-a-meta-analysis
#8
REVIEW
Chidozie U Nduka, Saverio Stranges, Peter K Kimani, Ahmed M Sarki, Olalekan A Uthman
BACKGROUND: The association of antiretroviral therapy (ART) with diabetes is inconsistent and varies widely across primary epidemiological studies. A comprehensive and more precise estimate of this association is fundamental to establishing a plausible causal link between ART and diabetes. METHODS: We identified epidemiological studies that compared mean fasting plasma glucose (FPG) concentrations and proportions of diabetes and metabolic syndrome between HIV-infected patients naïve and exposed to ART...
April 24, 2017: Diabetes/metabolism Research and Reviews
https://www.readbyqxmd.com/read/28437840/blood-biomarkers-of-carbohydrate-lipid-and-apolipoprotein-metabolisms-and-risk-of-amyotrophic-lateral-sclerosis-a-more-than-20-year-follow-up-of-the-swedish-amoris-cohort
#9
Daniela Mariosa, Niklas Hammar, Håkan Malmström, Caroline Ingre, Ingmar Jungner, Weimin Ye, Fang Fang, Göran Walldius
Objective To assess the associations of blood biomarkers of carbohydrate, lipid and apolipoprotein metabolisms with the future risk of ALS. Methods In the Apolipoprotein-related MOrtality RISk (AMORIS) study, we enrolled 636,132 men and women during 1985-1996 in Stockholm, Sweden with measurements of serum glucose, total cholesterol, triglycerides, apolipoprotein B (apoB), and apolipoprotein A-I (apoA-I). Serum LDL-C and HDL-C were either directly measured or calculated from total cholesterol, triglycerides and apoA-I...
April 24, 2017: Annals of Neurology
https://www.readbyqxmd.com/read/28437839/semicarbazide-sensitive-amine-oxidase-vascular-adhesion-protein-1-inhibition-reduces-lipopolysaccharide-induced-neuroinflammation
#10
Serena Becchi, Alberto Buson, Jonathan Foot, Wolfgang Jarolimek, Bernard W Balleine
BACKGROUND AND PURPOSE: Neuroinflammation is initiated by a variety of stimuli including infections, sepsis, neurodegenerative diseases or traumatic brain injury and if not adequately controlled can lead to various degrees of neuronal damage and behavioural impairment. A critical event in the initial steps of inflammation is neutrophil extravasation. Semicarbazide sensitive amine oxidase (SSAO, also known as vascular adhesion protein 1 or VAP-1) regulates neutrophil adhesion and extravasation...
April 24, 2017: British Journal of Pharmacology
https://www.readbyqxmd.com/read/28437838/prognostic-relevance-of-mir-124-3p-and-its-target-tp53inp1-in-pediatric-ependymoma
#11
Yulia Margolin-Miller, Natalia Yanichkin, Keren Shichrur, Helen Toledano, Anat Ohali, Theophilos Tzaridis, Shalom Michowitz, Suzana Fichman-Horn, Meora Feinmesser, Stefan M Pfister, Hendrik Witt, Uri Tabori, Eric Bouffet, Vijay Ramaswamy, Cynthia Hawkins, Michael D Taylor, Isaac Yaniv, Smadar Avigad
Ependymoma is a malignant pediatric brain tumor, often incurable under the current treatment regimen. We aimed to evaluate the expression of microRNAs (miRs) in pediatric ependymoma tumors in an attempt to identify prognostic molecular markers which would lead to potential therapeutic targets. Following miR-array expression analysis, we focused on 9 miRs that correlated with relapse which were further validated by quantitative real time PCR (qRT-PCR) in a cohort of 67 patients. Western blotting and immunohistochemistry were used to measure target protein expression in 20 and 34 tumor samples, respectively...
April 24, 2017: Genes, Chromosomes & Cancer
https://www.readbyqxmd.com/read/28437809/reactive-rather-than-proactive-diabetes-management-in-the-perioperative-period
#12
Inge Hommel, Petra J van Gurp, Alfons A den Broeder, Hub Wollersheim, Femke Atsma, Marlies E J L Hulscher, Cees J Tack
As perioperative hyperglycemia is associated with poor postoperative patient outcomes, clinical guidelines provide recommendations for optimal perioperative glucose control. It is unclear to what extent recommended glucose levels are met in daily practice, and little is known about factors that influence these levels. We describe blood glucose levels throughout the hospital care pathway in 375 non-critically ill patients with diabetes who underwent major surgery (abdominal, cardiac, or orthopedic) in 6 hospitals, examine determinants of these levels including adherence to 9 quality indicators for optimal perioperative diabetes care, and perform qualitative interviews to identify barriers for optimal care...
April 24, 2017: Hormone and Metabolic Research, Hormon- und Stoffwechselforschung, Hormones et Métabolisme
https://www.readbyqxmd.com/read/28437786/the-effect-of-retraining-on-treatment-success-life-quality-and-metabolic-parameters-in-patients-with-type-1-diabetes-using-insulin-pump
#13
Basak Ozgen Saydam, Fatma Yilmazmis, Nalan Aydin, Belgin Bektas, Simge Yilmaz, Umit Cavdar, Secil Ozisik, Baris Akinci
OBJECTIVE: To investigate the effect of insulin pump user retraining on treatment success, quality of life, and metabolic parameters of patients with type 1 diabetes using continuous subcutaneous insulin infusion (CSII). SUBJECTS AND METHODS: A total of 35 subjects participated in this prospective study. All patients were given insulin pump user retraining. Their knowledge level and application skills, metabolic parameters, life qualities and satisfaction from treatment were evaluated at baseline and after 6 months...
April 23, 2017: Medical Principles and Practice: International Journal of the Kuwait University, Health Science Centre
https://www.readbyqxmd.com/read/28437783/evacuation-of-a-tertiary-neonatal-centre-lessons-from-the-2016-kumamoto-earthquakes
#14
Osuke Iwata, Akihiko Kawase, Masanori Iwai, Kazuko Wada
BACKGROUND: Newborn infants hospitalised in the neonatal intensive care unit (NICU) are vulnerable to natural disasters. However, publications on evacuation from NICUs are sparse. The 2016 Kumamoto Earthquakes caused serious damage to Kumamoto City Hospital and its level III regional core NICU. Local/neighbour NICU teams and the disaster-communication team of a neonatal academic society cooperated to evacuate 38 newborn infants from the ward. OBJECTIVE: The aim of this paper was to highlight potential key factors to improve emergency NICU evacuation and coordination of hospital transportation following natural disasters...
April 25, 2017: Neonatology
https://www.readbyqxmd.com/read/28437751/effects-of-picrotoxin-on-zebrafish-larvae-behaviors-a-comparison-study-with-ptz
#15
Xue Yang, Jia Lin, Xiaolan Peng, Qin Zhang, Yinglan Zhang, Ning Guo, Shuizhen Zhou, Qiang Li
Larval zebrafish (Danio rerio) have been suggested as a high-throughput experimental animal model for epilepsy-related genetic and developmental studies. The behavioral manifestations in response to the seizure-inducing drugs picrotoxin (PTX) (1, 5, 25, 125, or 625μM) or pentylenetetrazole (PTZ) (1, 2, 4, 8, or 16mM) under light-dark conditions were studied using zebrafish larvae at 5days post-fertilization (dpf). Two behavioral parameters, locomotor activity and thigmotaxis behavior, were analyzed. We conclude that high concentrations of PTX treatment increased locomotion and thigmotaxis in 5 dpf zebrafish larvae under continuous illumination and the locomotion of PTX-treated zebrafish was decreased under the dark condition...
April 21, 2017: Epilepsy & Behavior: E&B
https://www.readbyqxmd.com/read/28437735/detective-quantum-efficiency-dqe-in-pet-scanners-a-simulation-study
#16
George E Karpetas, Christos M Michail, George P Fountos, Nektarios I Kalyvas, Ioannis G Valais, Ioannis S Kandarakis, George S Panayiotakis
The aim of the present study is to introduce the detective quantum efficiency (DQE) for the image quality assessment of positron emission tomography (PET) scanners. For this purpose, a thin layer chromatography (TLC) plane source was simulated using a previously validated, scanner and source geometry, Monte Carlo (MC) model. The model was developed with the Geant4 application for tomographic emission (GATE) MC package and reconstructed images obtained with the software for tomographic image reconstruction (STIR), with cluster computing...
April 12, 2017: Applied Radiation and Isotopes
https://www.readbyqxmd.com/read/28437727/new-inter-correlated-genes-targeted-by-diatom-derived-polyunsaturated-aldehydes-in-the-sea-urchin-paracentrotus-lividus
#17
Nadia Ruocco, Anna Maria Fedele, Susan Costantini, Giovanna Romano, Adrianna Ianora, Maria Costantini
The marine environment is continually subjected to the action of stressors (including natural toxins), which represent a constant danger for benthic communities. In the present work using network analysis we identified ten genes on the basis of associated functions (FOXA, FoxG, GFI-1, nodal, JNK, OneCut/Hnf6, TAK1, tcf4, TCF7, VEGF) in the sea urchin Paracentrotus lividus, having key roles in different processes, such as embryonic development and asymmetry, cell fate specification, cell differentiation and morphogenesis, and skeletogenesis...
April 21, 2017: Ecotoxicology and Environmental Safety
https://www.readbyqxmd.com/read/28437726/mercury-correlates-with-altered-corticosterone-but-not-testosterone-or-estradiol-concentrations-in-common-loons
#18
Melinda D Franceschini, David C Evers, Kevin P Kenow, Michael W Meyer, Mark Pokras, L Michael Romero
We investigated the relation between environmental mercury exposure and corticosterone concentrations in free-living adult common loons (Gavia immer). We determined blood and feather mercury concentrations and compared them to testosterone, estradiol, and stress-induced plasma corticosterone concentrations. Although neither testosterone nor estradiol correlated with Hg levels, there was a robust positive relation between blood Hg and stress-induced corticosterone concentrations in males, but not in females...
April 21, 2017: Ecotoxicology and Environmental Safety
https://www.readbyqxmd.com/read/28437722/effective-active-vaccination-against-methamphetamine-in-female-rats
#19
J D Nguyen, P T Bremer, C S Hwang, S A Vandewater, K C Collins, K M Creehan, K D Janda, M A Taffe
BACKGROUND: Immunotherapies directed against methamphetamine (MA) abuse have shown success in rodent models, however only a limited number of studies have investigated active vaccination in female mice and none in female rats. It is critical to determine if potential immunotherapeutic strategies generalize across sex, particularly for drugs that may produce significant sex-differences on behavioral or physiological endpoints. METHODS: Female Wistar rats were initially vaccinated with keyhole-limpet hemocyanin (KLH) or an anti-methamphetamine-KLH conjugate (MH6-KLH) three times over five weeks and implanted with radiotelemetry devices to assess locomotor activity and body temperature responses to MA...
April 14, 2017: Drug and Alcohol Dependence
https://www.readbyqxmd.com/read/28437693/an-assessment-of-the-social-cognitive-predictors-of-exclusive-breastfeeding-behavior-using-the-health-action-process-approach
#20
J L Martinez-Brockman, F M Shebl, N Harari, R Pérez-Escamilla
RATIONALE: In the United States rates of exclusive breastfeeding duration remain exceedingly low. Exclusive breastfeeding is a complex learned behavior that is influenced by social cognitive, interpersonal, and structural factors. Interventions are needed that address factors at multiple levels of the social-ecological model. This study was designed to examine the social cognitive predictors of exclusive breastfeeding behavior in a sample of low-income women attending the Special Supplemental Nutrition Program for Women, Infants, and Children (WIC) breastfeeding peer counseling program and enrolled in the Lactation Advice Through Texting Can Help (LATCH) study...
April 12, 2017: Social Science & Medicine
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