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https://www.readbyqxmd.com/read/28351127/absorption-amelioration-of-amorphous-si-film-by-introducing-metal-silicide-nanoparticles
#1
Hui Sun, Hsuan-Chung Wu, Sheng-Chi Chen, Che-Wei Ma Lee, Xin Wang
Amorphous Si (a-Si) films with metal silicide are expected to enhance the absorption ability of pure a-Si films. In this present study, NiSi (20 nm)/Si (40 nm) and AlSi (20 nm)/Si (40 nm) bilayer thin films are deposited through radio frequency (RF) sputtering at room temperature. The influence of the film's composition and the annealing temperature on the film's optical absorption is investigated. The results show that all the NiSi/Si films and AlSi/Si films possess higher absorption ability compared to a pure a-Si film (60 nm)...
December 2017: Nanoscale Research Letters
https://www.readbyqxmd.com/read/28351121/probing-the-quantum-states-of-a-single-atom-transistor-at-microwave-frequencies
#2
Giuseppe Carlo Tettamanzi, Samuel James Hile, Matthew Gregory House, Martin Fuechsle, Sven Rogge, Michelle Y Simmons
The ability to apply gigahertz frequencies to control the quantum state of a single P atom is an essential requirement for the fast gate pulsing needed for qubit control in donor-based silicon quantum computation. Here, we demonstrate this with nanosecond accuracy in an all epitaxial single atom transistor by applying excitation signals at frequencies up to ≈13 GHz to heavily phosphorus-doped silicon leads. These measurements allow the differentiation between the excited states of the single atom and the density of states in the one-dimensional leads...
March 28, 2017: ACS Nano
https://www.readbyqxmd.com/read/28351093/angptl8-betatrophin-is-expressed-in-visceral-adipose-tissue-and-relates-to-human-hepatic-steatosis-in-two-independent-clinical-collectives
#3
Christian von Loeffelholz, Andreas F H Pfeiffer, Johan F Lock, Steffi Lieske, Stephanie Döcke, Veronica Murahovschi, Jennifer Kriebel, Tonia de Las Heras Gala, Harald Grallert, Natalia Rudovich, Martin Stockmann, Joachim Spranger, Gerhard Jahreis, Stefan R Bornstein, George Lau, Aimin Xu, Jeanette Schulz-Menger, Louisa Exner, Sven Haufe, Jens Jordan, Stefan Engeli, Andreas L Birkenfeld
Angiopoietin-like protein 8 (ANGPTL8)/betatrophin expression in visceral adipose tissue and associations with circulating fatty acid profile have not yet been investigated.Forty subjects were included in a cross-sectional study, 57 in a dietary weight reduction intervention. Circulating Angiopoietin-like protein 8/betatrophin was measured in all subjects. Liver and adipose tissue were sampled and plasma fatty acids and tissue Angiopoietin-like protein 8/betatrophin expression were evaluated in the cross-sectional study...
March 28, 2017: Hormone and Metabolic Research, Hormon- und Stoffwechselforschung, Hormones et Métabolisme
https://www.readbyqxmd.com/read/28351091/plasma-betatrophin-levels-of-subjects-classified-with-normal-impaired-and-diabetic-glucose-tolerance-and-subjects-with-impaired-fasting-glucose
#4
Sibel Ozyazgan, Burak Onal, Eda Merve Kurtulus, Hafize Uzun, Gokhan Akkan, Dildar Konukoglu
This study was aimed to investigate whether betatrophin shows glucose intolerance or not. To access the plasma betatrophin levels after basal and glucose load, groups were classified as normal glucose tolerance (NGT), impaired fasting glucose (IFG), impaired glucose tolerance (IGT), and diabetic glucose tolerance (DGT) according to WHO 2012 criteria. An oral glucose tolerance test was performed on age-matched subjects (n=220) with a body mass index (BMI)<27 kg/m(2). Subjects were categorized as normoglycemic (n=55), IFG (n=50), IGT (n=60), and DM (n=55) according to the WHO criteria...
March 28, 2017: Hormone and Metabolic Research, Hormon- und Stoffwechselforschung, Hormones et Métabolisme
https://www.readbyqxmd.com/read/28351085/thyroid-function-and-metabolic-syndrome-a-population-based-thyroid-study
#5
Ladan Mehran, Atieh Amouzegar, Parnian Kheirkhah Rahimabad, Maryam Tohidi, Zhale Tahmasebinejad, Fereidoun Azizi
The impact of thyroid dysfunction in subclinical ranges on metabolic syndrome (MetS) is not well known. The aim of the present study is to evaluate the association of thyroid dysfunction with MetS and its components. In the cross-sectional population-based Tehran Thyroid Study, out of 5 786 randomly selected participants, aged≥20 years, subjects with thyroid nodules and cancer or any severe systemic disease, those who were pregnant and those using thyroid medication were excluded, leaving 5 422 subjects to be investigated...
March 2017: Hormone and Metabolic Research, Hormon- und Stoffwechselforschung, Hormones et Métabolisme
https://www.readbyqxmd.com/read/28351069/transition-to-independence-characteristics-and-outcomes-of-mentored-career-development-kl2-scholars-at-clinical-and-translational-science-award-institutions
#6
Carol Sweeney, Lisa S Schwartz, Robert Toto, Carol Merchant, Alecia S Fair, Janice L Gabrilove
PURPOSE: To describe the transition from mentored to independent research funding for clinical and translational scholars supported by institutional KL2 Mentored Career Development programs. METHOD: In 2013, faculty leaders at Clinical and Translational Science Award institutions completed an online survey, reporting characteristics of scholars in their KL2 programs from 2006 to 2013. The primary outcome variable was a report that the scholar had received independent funding as a principal investigator...
April 2017: Academic Medicine: Journal of the Association of American Medical Colleges
https://www.readbyqxmd.com/read/28351065/institutional-incentives-for-mentoring-at-the-u-s-department-of-veterans-affairs-and-universities-associations-with-mentors-perceptions-and-time-spent-mentoring
#7
Natalya C Maisel, Max A Halvorson, John W Finney, Xiaoyu Bi, Ko P Hayashi, Daniel M Blonigen, Julie C Weitlauf, Christine Timko, Ruth C Cronkite
PURPOSE: Limited empirical attention to date has focused on best practices in advanced research mentoring in the health services research domain. The authors investigated whether institutional incentives for mentoring (e.g., consideration of mentoring in promotion criteria) were associated with mentors' perceptions of mentoring benefits and costs and with time spent mentoring. METHOD: The authors conducted an online survey in 2014 of a national sample of mentors of U...
April 2017: Academic Medicine: Journal of the Association of American Medical Colleges
https://www.readbyqxmd.com/read/28351059/sonographic-markers-in-the-prediction-of-fetal-complex-gastroschisis
#8
Walkyria S Andrade, Maria L Brizot, Agatha S Rodrigues, Ana C Tannuri, Vera L Krebs, Estela N Nishie, Rossana P V Francisco, Marcelo Zugaib
OBJECTIVE: To investigate the ultrasound (US) markers predictive of complex gastroschisis (CG), mortality, and morbidity in fetuses with gastroschisis. MATERIALS AND METHODS: This was a retrospective cohort study of 186 pregnancies with isolated fetal gastroschisis. Eight US markers were analyzed. The predictions and associations of US markers with CG, mortality, and morbidity were assessed. Combinations of US markers predictive of CG were investigated. RESULTS: Extra-abdominal bowel dilatation (EABD), intra-abdominal bowel dilatation (IABD), and polyhydramnios were predictive of CG...
March 29, 2017: Fetal Diagnosis and Therapy
https://www.readbyqxmd.com/read/28351036/hypoxia-induces-multidrug-resistance-via-enhancement-of-epidermal-growth-factor-like-domain-7-expression-in-non-small-lung-cancer-cells
#9
Xiaochun Shen, Qiaoming Zhi, Yunliang Wang, Zhi Li, Jin Zhou, Jianan Huang
Chemotherapy is widely used in non-small cell lung cancer (NSCLC) treatment, yet multidrug resistance (MDR) is a major chemotherapeutic obstacle in both resectable and advanced NSCLC. Epidermal growth factor-like domain 7 (EGFL7), also known as vascular endothelial stain, is an endothelial cell-derived secreted factor that regulates vascular tube formulation. The aim of this study was to investigate the potential relationships between EGFL7 and MDR in NSCLC cells. We first obtained the CDDP-based MDR phenotype cell line A549/CDDP by repeated exposure to a proper concentration of CDDP (cisplatin) from original A549 cells...
March 29, 2017: Chemotherapy
https://www.readbyqxmd.com/read/28351028/influence-of-feeding-types-during-the-first-months-of-life-on-calciuria-levels-in-healthy-infants-a-secondary-analysis-from-a-randomized-clinical-trial
#10
Natalia Ferré, Carmen Rubio-Torrents, Veronica Luque, Ricardo Closa-Monasterolo, Veit Grote, Berthold Koletzko, Piotr Socha, Dariusz Gruszfeld, Jean Paul Langhendries, Anne Sengier, Elvira Verduci, Joaquin Escribano
BACKGROUND/AIMS: Dietary factors can modify calciuria. We aim to investigate urinary calcium excretion in healthy infants according to their protein. METHODS: Secondary data analysis from a randomized clinical trial where healthy term infants were randomized after birth to a higher (HP) or lower (LP) protein content formula that was consumed until age 1 year. A non-randomized group of breastfed (BF) infants was used for reference. Anthropometry, dietary intakes and calciuria (calcium/creatinine ratios) from spot urine samples were assessed at ages 3 and 6 months...
March 29, 2017: Annals of Nutrition & Metabolism
https://www.readbyqxmd.com/read/28351023/effect-of-door-locking-policy-on-inpatient-treatment-of-substance-use-and-dual-disorders
#11
Regine Steinauer, Christian G Huber, Sylvie Petitjean, Gerhard A Wiesbeck, Kenneth M Dürsteler, Undine E Lang, Christian Seifert, Katja Andreeff, Michael Krausz, Marc Walter, Marc Vogel
OBJECTIVE: Substance use treatment is often performed inside locked wards. We investigate the effects of adopting a policy of open-door treatment for a substance use treatment and dual diagnosis ward. METHODS: This is a prospective open-label study investigating 3-month study periods before opening (P1), immediately after (P2), and 1 year after the first period (P3). Data on committed patients, coercion (seclusion, forced medication, absconding events with subsequent police search), violence, and substance use was collected daily...
March 29, 2017: European Addiction Research
https://www.readbyqxmd.com/read/28351021/effects-of-handedness-saccadic-bilateral-eye-movements-on-the-specificity-of-past-autobiographical-memory-episodic-future-thinking
#12
Andrew Parker, Adam Parkin, Neil Dagnall
The present research investigated the effects of personal handedness and saccadic eye movements on the specificity of past autobiographical memory and episodic future thinking. Handedness and saccadic eye movements have been hypothesised to share a common functional basis in that both influence cognition through hemispheric interaction. The technique used to elicit autobiographical memory and episodic future thought involved a cued sentence completion procedure that allowed for the production of memories spanning the highly specific to the very general...
March 25, 2017: Brain and Cognition
https://www.readbyqxmd.com/read/28351019/online-microdialysis-ultra-performance-liquid-chromatography-mass-spectrometry-method-for-comparative-pharmacokinetic-investigation-on-iridoids-from-gardenia-jasminoides-ellis-in-rats-with-different-progressions-of-type-2-diabetic-complications
#13
Xueju Zhang, Lu Wang, Zhong Zheng, Zifeng Pi, Zhiqiang Liu, Fengrui Song
Iridoid glycosides consist the main bioactive constituents of Gardenia jasminoides Ellis (G. jasminoides), which is used alone or in combination with other medicine herbs for treatment of diabetes mellitus in China. This paper investigated for the first time comparative pharmacokinetics (PKs) of four unbound iridoids (including genipin, geniposide, gardenoside and geniposidic acid) in rat blood between healthy and type 2 diabetic groups with different disease progressions (9 or 13 weeks). Online microdialysis-ultra performance liquid chromatography-mass spectrometry (MD- UPLC-MS/MS) method was used after oral administration of iridoid extracts obtained from the fruits of G...
March 21, 2017: Journal of Pharmaceutical and Biomedical Analysis
https://www.readbyqxmd.com/read/28351015/optimization-for-zeolite-regeneration-and-nitrogen-removal-performance-of-a-hypochlorite-chloride-regenerant
#14
Wei Zhang, Zhen Zhou, Ying An, Silu Du, Danian Ruan, Chengyue Zhao, Ning Ren, Xiaoce Tian
Simultaneous zeolites regeneration and nitrogen removal were investigated by using a mixed solution of NaClO and NaCl (NaClO-NaCl solution), and effects of the regenerant on ammonium removal performance and textural properties of zeolites were analyzed by long-term adsorption and regeneration operations. Mixed NaClO-NaCl solution removed more NH4(+) exchanged on zeolites and converted more of them to nitrogen than using NaClO or NaCl solution alone. Response surface methodological analysis indicated that molar ratio of hypochlorite and nitrogen (ClO(-)/N), NaCl concentration and pH value all had significant effects on zeolites regeneration and NH4(+) conversion to nitrogen, and the optimum condition was obtained at ClO(-)/N of 1...
March 22, 2017: Chemosphere
https://www.readbyqxmd.com/read/28351013/dynamics-of-antibiotic-resistance-genes-in-microbial-fuel-cell-coupled-constructed-wetlands-treating-antibiotic-polluted-water
#15
Shuai Zhang, Hai-Liang Song, Xiao-Li Yang, Shan Huang, Zhe-Qin Dai, Hua Li, Yu-Yue Zhang
Microbial fuel cell-coupled constructed wetlands (CW-MFCs) use electrochemical, biological, and ecological functions to treat wastewater. However, few studies have investigated the risks of antibiotic resistance genes (ARGs) when using such systems to remove antibiotics. Therefore, three CW-MFCs were designed to assess the dynamics of ARGs in filler biofilm and effluent over 5000 h of operation. The experimental results indicated that relatively high steady voltages of 605.8 mV, 613.7 mV, and 541.4 mV were obtained at total influent antibiotic concentrations of 400, 1,000, and 1600 μg L(-1), respectively...
March 22, 2017: Chemosphere
https://www.readbyqxmd.com/read/28351008/aerosol-characteristics-and-sources-in-yangzhou-china-resolved-by-offline-aerosol-mass-spectrometry-and-other-techniques
#16
Xinlei Ge, Ling Li, Yanfang Chen, Hui Chen, Dan Wu, Junfeng Wang, Xinchun Xie, Shun Ge, Zhaolian Ye, Jianzhong Xu, Mindong Chen
Detailed chemical characterization of fine aerosols (PM2.5) is important for reducing air pollution in densely populated areas, such as the Yangtze River Delta region in China. This study systematically analyzed PM2.5 samples collected during November 2015 to April 2016 in urban Yangzhou using a suite of techniques, in particular, an Aerodyne soot particle aerosol mass spectrometry (SP-AMS). The techniques used here reconstructed the majority of total PM2.5 measured where extracted species comprised on average 91...
March 25, 2017: Environmental Pollution
https://www.readbyqxmd.com/read/28351007/catalytic-role-of-iron-in-the-formation-of-silver-nanoparticles-in-photo-irradiated-ag-dissolved-organic-matter-solution
#17
Yongguang Yin, Dan Han, Chao Tai, Zhiqiang Tan, Xiaoxia Zhou, Sujuan Yu, Jingfu Liu, Guibin Jiang
Photo-reduction of Ag(+) to silver nanoparticle (AgNPs) by dissolved organic matter (DOM) is a possible source of naturally occurring AgNPs. However, how this photo-reduction process is influenced by ubiquitous metal ions is still not well understood. In addition, in previous studies, the formation of AgNPs in DOM solution was usually monitored by UV-Vis spectroscopy, and there is still lack of quantitative analysis for the formed AgNPs. In the present study, the role of Fe(2+)/Fe(3+) at environmental concentration level on this photochemical process was investigated, and the enhanced formation of AgNPs by Fe(2+)/Fe(3+) was probed and quantified by using UV-Vis spectroscopy, transmission electron microscopy, and liquid chromatography-inductively coupled plasma mass spectrometry...
March 25, 2017: Environmental Pollution
https://www.readbyqxmd.com/read/28351004/temporal-changes-in-the-prevalence-of-disordered-eating-behaviors-among-adolescents-living-in-the-metropolitan-area-of-rio-de-janeiro-brazil
#18
Danilo Dias Santana, Erica Guimarães Barros, Rosana Salles da Costa, Gloria Valeria da Veiga
To investigate temporal changes in the prevalence of disordered eating behaviors among adolescents, and their association with socio demographic factors and overweight. Using probability sampling, two population-based cross-sectional surveys were conducted: one in 2005 (n=511) and the other in 2010 (n=314). The frequency of disordered eating behaviors (binge eating, strict dieting or fasting and compensatory behaviors) was investigated using a self-administered questionnaire. The presence of binge eating increased by 18...
March 21, 2017: Psychiatry Research
https://www.readbyqxmd.com/read/28351003/experimental-investigation-of-cognitive-and-affective-empathy-in-borderline-personality-disorder-effects-of-ambiguity-in-multimodal-social-information-processing
#19
Inga Niedtfeld
Borderline personality disorder (BPD) is characterized by affective instability and interpersonal problems. In the context of social interaction, impairments in empathy are proposed to result in inadequate social behavior. In contrast to findings of reduced cognitive empathy, some authors suggested enhanced emotional empathy in BPD. It was investigated whether ambiguity leads to decreased cognitive or emotional empathy in BPD. Thirty-four patients with BPD and thirty-two healthy controls were presented with video clips, which were presented through prosody, facial expression, and speech content...
March 23, 2017: Psychiatry Research
https://www.readbyqxmd.com/read/28351002/significance-of-lipoprotein-a-levels-in-familial-hypercholesterolemia-and-coronary-artery-disease
#20
Sha Li, Na-Qiong Wu, Cheng-Gang Zhu, Yan Zhang, Yuan-Lin Guo, Ying Gao, Xiao-Lin Li, Ping Qing, Chuan-Jue Cui, Rui-Xia Xu, Jing Sun, Geng Liu, Qian Dong, Jian-Jun Li
BACKGROUND AND AIMS: Patients with familial hypercholesterolemia (FH) are often characterized by premature coronary artery disease (CAD) with heterogeneity at onset. The aim of the present study was to investigate the associations of lipoprotein (a) [Lp(a)] with the FH phenotype, genotype and roles of Lp(a) in determining CAD risk among patients with and without FH. METHODS: We enrolled 8050 patients undergoing coronary angiography, from our Lipid clinic. Clinical FH was diagnosed using the Dutch Lipid Clinic Network criteria...
March 18, 2017: Atherosclerosis
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