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https://www.readbyqxmd.com/read/28347129/bi-layer-channel-azo-zno-thin-film-transistors-fabricated-by-atomic-layer-deposition-technique
#1
Huijin Li, Dedong Han, Liqiao Liu, Junchen Dong, Guodong Cui, Shengdong Zhang, Xing Zhang, Yi Wang
This letter demonstrates bi-layer channel Al-doped ZnO/ZnO thin film transistors (AZO/ZnO TFTs) via atomic layer deposition process at a relatively low temperature. The effects of annealing in oxygen atmosphere at different temperatures have also been investigated. The ALD bi-layer channel AZO/ZnO TFTs annealed in dry O2 at 300 °C exhibit a low leakage current of 2.5 × 10(-13)A, I on/I off ratio of 1.4 × 10(7), subthreshold swing (SS) of 0.23 V/decade, and high transmittance. The enhanced performance obtained from the bi-layer channel AZO/ZnO TFT devices is explained by the inserted AZO front channel layer playing the role of the mobility booster...
December 2017: Nanoscale Research Letters
https://www.readbyqxmd.com/read/28347128/temperature-and-wavelength-dependence-of-energy-transfer-process-between-quantized-states-and-surface-states-in-cdse-quantum-dots
#2
Lei Zhang, Qinfeng Xu, Mingliang Liu, Lingbin Kong, Mengmeng Jiao, Haifeng Mu, Dehua Wang, Honggang Wang, Jiannong Chen, Chuanlu Yang
Temperature and wavelength dependence of energy transfer (ET) process between quantized states and surface trap states of CdSe quantum dots was investigated, respectively. The experimental results demonstrate that the photoluminescence (PL) intensity of the quantized states decreases with respect to the trap state emission, especially at lower temperatures. The observed ET process between quantized states and trap states which is influenced by the thermal population behavior. At the same temperature, the silver films can greatly enhance the energy transfer (ET) rate from the quantized states to trap states due to surface plasmonic coupling effect...
December 2017: Nanoscale Research Letters
https://www.readbyqxmd.com/read/28346994/gc-ms-analysis-and-potential-cytotoxic-activity-of-calyptranthes-grandifolia-o-berg-calyptranthes-tricona-d-legrand-and-myrciaria-plinioides-d-legrand-essential-oil-in-raw264-7-and-cho-k1-cells
#3
D Faleiro, S M Immich, F Majolo, L Mayer, E M Ethur, M I Goettert
The search for new bioactive substances derived from natural products is daily growing. Among biologically active products used in therapeutic approaches, essential oils are described with wide range of therapeutic and pharmacological potential. Plants from Myrtaceae family have the presence of essential oils in its composition. Calyptranthes grandifolia, Calyptranthes tricona and Myrciaria plinioides species belong to this family and are used by the local population. However, there are no reports in the literature describing relevant characteristics about the potential and possible activities of these species...
March 22, 2017: Biomedicine & Pharmacotherapy, Biomédecine & Pharmacothérapie
https://www.readbyqxmd.com/read/28346992/longitudinal-assessment-of-hydropeaking-impacts-on-various-scales-for-an-improved-process-understanding-and-the-design-of-mitigation-measures
#4
C Hauer, P Holzapfel, P Leitner, W Graf
Hydropeaking is one of the main pressures on the aquatic ecology in alpine rivers. Beside studies on abiotic process and biotic response on the local scale there is a lack in process understanding on the reach scale. Especially longitudinal changes of hydropeaking impacts based on retention processes have not been studied yet. Thus, based on unsteady one-dimensional and two-dimensional depth averaged modelling it was targeted to investigate possible changes in vertical ramping velocity for the discussion of possible mitigation measures at the local scale...
January 1, 2017: Science of the Total Environment
https://www.readbyqxmd.com/read/28346991/an-integrated-assessment-framework-for-the-analysis-of-multiple-pressures-in-aquatic-ecosystems-and-the-appraisal-of-management-options
#5
A Pistocchi, A Udias, B Grizzetti, E Gelati, P Koundouri, R Ludwig, A Papandreou, I Souliotis
The contribution illustrates an integrated assessment framework aimed at evaluating the relationships between multiple pressures and water body status for the purposes of river basin management. The framework includes the following steps. (1) Understanding how the different pressures affect the status of water bodies. This entails the characterization of biophysical state variables and the definition of a causal relationship between pressures and status. Therefore this step involves interaction between experts bearing ecological understanding and experts providing models to represent the effect of pressures...
January 1, 2017: Science of the Total Environment
https://www.readbyqxmd.com/read/28346969/the-comparison-of-laparoscopic-and-microsurgical-varicocoelectomy-in-infertile-men-with-varicocoele-on-paternity-rate-12%C3%A2-months-after-surgery-a-prospective-randomized-controlled-trial
#6
P Bryniarski, P Taborowski, P Rajwa, Z Kaletka, M Życzkowski, A Paradysz
The best surgical approach for varicocoelectomy is still unknown, however more and more physicians favour subinguinal microsurgery. The aim of this study was to find whether microsurgical approach is superior to laparoscopic varicocoelectomy in terms of pregnancy rate, fertility potential, endocrinological function of the testis, erectile dysfunction and testicle volume increase. It was a prospective, non-masked, parallel-group randomized controlled trial with one to one allocation. It was conducted at authors' institution and designed as per protocol study...
March 27, 2017: Andrology
https://www.readbyqxmd.com/read/28346964/lipoprotein-a-as-a-risk-factor-for-venous-thromboembolism-a-systematic-review-and-meta-analysis-of-the-literature
#7
Francesco Dentali, Vera Gessi, Rossella Marcucci, Monica Gianni, Anna Maria Grandi, Massimo Franchini
Elevated plasma levels of lipoprotein(a) (Lp(a)) are associated with increased cardiovascular risk in several clinical studies. However, there is a lack of data supporting a positive association between elevated Lp(a) levels and venous thromboembolism (VTE). Thus, we conducted a systematic review of the literature to better clarify its role as a risk factor for VTE. Medline and the Embase (up to May 2015) electronic databases were used to identify potentially eligible studies. Studies measuring Lp(a) values in adult patients with deep vein thrombosis and/or pulmonary embolism and in a population of patients without a VTE were selected...
March 27, 2017: Seminars in Thrombosis and Hemostasis
https://www.readbyqxmd.com/read/28346955/nonischemic-priapism-in-childhood-a-case-series-and-review-of-literature
#8
Hans-Walter Hacker, Marcus G Schwoebel, Philipp O Szavay
Introduction Nonischemic priapism (NIP) in childhood is a very rare affection. In the literature, patients with NIP are described mainly incidental after perineal trauma. Many of them underwent embolization of either internal pudendal artery or bulbocavernosal arteries. Patients and Methods We report on six boys between 4 and 13 years of age with NIP, treated at our institution between 2008 and 2014. Color Doppler ultrasound (CDU) was performed in all patients as emergency diagnostic evaluation. Patients were treated conservatively, including bed rest, local cooling, and perineal compression...
March 27, 2017: European Journal of Pediatric Surgery
https://www.readbyqxmd.com/read/28346953/lennox-gastaut-syndrome-a-state-of-the-art-review
#9
Mario Mastrangelo
Lennox-Gastaut syndrome (LGS) is a severe age-dependent epileptic encephalopathy usually with onset between 1 and 8 years of age. Functional neuroimaging studies recently introduced the concept of Lennox-Gastaut as "secondary network epilepsy" resulting from dysfunctions of a complex system involving both cortical and subcortical structures (default-mode network, corticoreticular connections, and thalamus). These dysfunctions are produced by different disorders including hypoxic-ischemic encephalopathies, meningoencephalitis, cortical malformations, neurocutaneous disorders, or tumors...
March 27, 2017: Neuropediatrics
https://www.readbyqxmd.com/read/28346946/association-between-a-virtual-glucose-management-service-and-glycemic-control-in-hospitalized-adult-patients-an-observational-study
#10
Robert J Rushakoff, Mary M Sullivan, Heidemarie Windham MacMaster, Arti D Shah, Alvin Rajkomar, David V Glidden, Michael A Kohn
Background: Inpatient hyperglycemia is common and is linked to adverse patient outcomes. New methods to improve glycemic control are needed. Objective: To determine whether a virtual glucose management service (vGMS) is associated with improved inpatient glycemic control. Design: Cross-sectional analyses of three 12-month periods (pre-vGMS, transition, and vGMS) between 1 June 2012 and 31 May 2015. Setting: 3 University of California, San Francisco, hospitals...
March 28, 2017: Annals of Internal Medicine
https://www.readbyqxmd.com/read/28346938/star-formation-inside-a-galactic-outflow
#11
R Maiolino, H R Russell, A C Fabian, S Carniani, R Gallagher, S Cazzoli, S Arribas, F Belfiore, E Bellocchi, L Colina, G Cresci, W Ishibashi, A Marconi, F Mannucci, E Oliva, E Sturm
Recent observations have revealed massive galactic molecular outflows that may have the physical conditions (high gas densities) required to form stars. Indeed, several recent models predict that such massive outflows may ignite star formation within the outflow itself. This star-formation mode, in which stars form with high radial velocities, could contribute to the morphological evolution of galaxies, to the evolution in size and velocity dispersion of the spheroidal component of galaxies, and would contribute to the population of high-velocity stars, which could even escape the galaxy...
March 27, 2017: Nature
https://www.readbyqxmd.com/read/28346928/diet-and-gut-microbiota-in-health-and-disease
#12
Ting-Chin David Shen
Gut microbiota plays an important role in host health maintenance and disease pathogenesis. The development of a stable and diverse gut microbiota is essential to various host physiologic functions such as immunoregulation, pathogen prevention, energy harvest, and metabolism. At the same time, a dysbiotic gut microbiota associated with disease is altered in structure and function, and often characterized by a decrease in species richness and proliferation of pathogenic bacterial taxa. As a shared substrate between the host and the gut microbiota, diet significantly impacts the health and disease states of the host both directly and through gut microbial metabolite production...
2017: Nestlé Nutrition Institute Workshop Series
https://www.readbyqxmd.com/read/28346922/epigenetics-in-gastrointestinal-health-and-disease-spotlight-on-dna-methylation-in-the-intestinal-epithelium
#13
Matthias Zilbauer, Judith Kraiczy
Epigenetics can be defined as stable, potentially heritable changes in cellular phenotype caused by mechanisms other than alterations in the underlying DNA sequence. DNA methylation is amongst the most intensely studied epigenetic mechanisms and has been shown to play a major role in regulating fundamental aspects of cell biology including cellular differentiation, organ development, and cell type-specific gene expression. Importantly, it is becoming increasingly clear that epigenetic mechanisms operate at the interface between the genetic code and our environment and are able to mediate environmental changes into stable phenotypic alterations...
2017: Nestlé Nutrition Institute Workshop Series
https://www.readbyqxmd.com/read/28346921/bacterial-colonization-of-the-newborn-gut-immune-development-and-prevention-of-disease
#14
W Allan Walker
We now know that the fetus does not reside in a sterile intrauterine environment but is exposed to commensal bacteria from the maternal gut which cross the placenta and infiltrate the amniotic fluid. This exposure to colonizing bacteria continues at birth and during the first year of life, and it has a profound influence on lifelong health. Why is this important? Cross talk with colonizing bacteria in the developing neonatal intestine helps in the initial adaptation of the infant to extrauterine life, particularly in acquiring immune homeostasis, and provides protection against disease expression (e...
2017: Nestlé Nutrition Institute Workshop Series
https://www.readbyqxmd.com/read/28346919/the-pregnancy-microbiome
#15
Hadar Neuman, Omry Koren
In recent years, microbiome research has revealed multiple essential roles of the microorganisms residing within the human body in host metabolism, immunity, and overall health. Numerous physiological and pathological states, including obesity and the metabolic syndrome, have been correlated with microbial changes, termed dysbiosis. Our microbiomes change in response to our environment, diet, weight, hormones, and other factors. It is, therefore, not surprising that there are also significant changes in the microbiome during pregnancy when dramatic weight gain and metabolic and immunological changes occur...
2017: Nestlé Nutrition Institute Workshop Series
https://www.readbyqxmd.com/read/28346917/endocrine-long-term-follow-up-of-children-with-neurofibromatosis-type-1-and-optic-pathway-glioma%C3%A2
#16
Ilaria Sani, Assunta Albanese
BACKGROUND/AIMS: Children with optic pathway glioma (OPG) face sequelae related to tumour location and treatment modalities. We aimed to assess the prevalence of hypothalamic-pituitary dysfunctions in children with neurofibromatosis type 1 (NF1) and OPG who did not receive radiotherapy or surgical resection. The causative role of tumour location on endocrinopathy development is investigated. METHODS: A retrospective follow-up study of 40 children with NF1 and OPG evaluated between August 1996 and May 2015 was undertaken...
March 27, 2017: Hormone Research in Pædiatrics
https://www.readbyqxmd.com/read/28346914/top-prospective-evaluation-of-a-volume-based-computer-assisted-method-for-transperineal-optimized-prostate-biopsy
#17
Claudia Kesch, Jan Philipp Radtke, Ionel Valentin Popeneciu, Claudia Gasch, Svenja C Dieffenbacher, Tilman Klein, Heinz-Peter Schlemmer, Kathrin Wieczorek, Pawel Zogal, Markus Hohenfellner, Georgios Sakas, Boris Alexander Hadaschik
OBJECTIVE: This study is a prospective evaluation of a volume-based, computer-assisted method for transperineal optimized prostate (TOP) biopsy. The TOP algorithm automates core planning for systematic prostate biopsies using the 3-dimensional organ contour and an alterable volume for tumors to be excluded. SUBJECTS AND METHODS: MRI-transrectal ultrasound fusion biopsy with MRI-targeted biopsies (TBs) and systematic-TOP biopsies were performed on 172 men between October 2013 and March 2014...
March 28, 2017: Urologia Internationalis
https://www.readbyqxmd.com/read/28346912/optimizing-the-dose-of-erythropoietin-required-to-prevent-acute-ventilation-induced-cerebral-white-matter-injury-in-preterm-lambs
#18
Kyra Y Y Chan, Domenic A LaRosa, Mary Tolcos, Anqi Li, Valerie A Zahra, Graeme R Polglase, Samantha K Barton
Erythropoietin (EPO) is being trialed in preterm neonates for neuroprotection. We have recently demonstrated that a single high bolus dose (5,000 IU/kg) of recombinant human EPO amplified preterm lung and brain ventilation-induced injury. We aimed to determine the optimal dose of EPO to reduce ventilation-induced cerebral white matter inflammation and injury in preterm lambs. Lambs (0.85 gestation) were ventilated with an injurious strategy for 15 min followed by conventional ventilation for 105 min. Lambs were randomized to no treatment (VENT; n = 8) or received a bolus dose of EPO (EPREX®): 300 IU/kg (EPO 300; n = 5), 1,000 IU/kg (EPO 1,000; n = 5), or 3,000 IU/kg (EPO 3,000; n = 5)...
March 28, 2017: Developmental Neuroscience
https://www.readbyqxmd.com/read/28346910/occurrence-temporal-variation-and-estrogenic-burden-of-five-parabens-in-sewage-sludge-collected-across-the-united-states
#19
Jing Chen, Benny F G Pycke, Bruce J Brownawell, Chad A Kinney, Edward T Furlong, Dana W Kolpin, Rolf U Halden
Five parabens used as preservatives in pharmaceuticals and personal care products (PPCPs) were measured in sewage sludges collected at 14 U.S. wastewater treatment plants (WWTPs) located in nine states. Detected concentration ranges (ng/g, dry weight) and frequencies were as follows: methyl paraben (15.9 to 203.0; 100%), propyl paraben (0.5 to 7.7; 100%), ethyl paraben (<0.6 to 2.6; 63%), butyl paraben (<0.4 to 4.3; 42%) and benzyl paraben (<0.4 to 3.3; 26%). The estrogenicity inherent to the sum of parabens detected in sewage sludge (ranging from 10...
March 24, 2017: Science of the Total Environment
https://www.readbyqxmd.com/read/28346909/bioaugmentaton-in-technosols-created-in-abandoned-pyritic-tailings-can-contribute-to-enhance-soil-c-sequestration-and-plant-colonization
#20
Raúl Zornoza, Melisa Gómez-Garrido, Silvia Martínez-Martínez, María Dolores Gómez-López, Ángel Faz
Creation of Technosols in combination with phytostabilization may be a sustainable strategy to minimize the environmental and human health hazards derived from mine tailings. Bioaugmentation can facilitate plant establishment and growth for efficient phytostabilization. In order to assess if bioaugmentation can increase soil quality and fertility, decrease metal(loid) mobility and accelerate plant colonization, a one-year field experiment was designed with creation of Technosols in two tailings ponds with different pH (acidic (AT) and neutral (NT)), with addition of marble waste (MaW) and two organic materials (pig manure (PM) and sewage sludge (SS), without or with inoculation of effective microorganisms (EM) at three rates...
March 24, 2017: Science of the Total Environment
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