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https://www.readbyqxmd.com/read/28228003/electrochemical-formation-of-multilayer-sno2-sb-x-o-y-coating-in-complex-electrolyte
#1
Antonina Maizelis, Boris Bairachniy
The multilayer antimony-doped tin dioxide coating was obtained by cathodic deposition of multilayer metal-hydroxide coating with near 100-nm thickness layers on the alloy underlayer accompanied by the anodic oxidation of this coating. The potential regions of deposition of tin, antimony, tin-antimony alloy, and mixture of this metals and their hydroxides in the pyrophosphate-tartrate electrolyte were revealed by the cyclic voltammetric method. The possibility of oxidation of cathodic deposit consisting of tin and Sn(II) hydroxide compounds to the hydrated tin dioxide in the same electrolyte was demonstrated...
December 2017: Nanoscale Research Letters
https://www.readbyqxmd.com/read/28227419/an-automated-bladder-volume-measurement-algorithm-by-pixel-classification-using-random-forests
#2
Pavan Annangi, Sigmund Frigstad, S B Subin, Anders Torp, Sundararajan Ramasubramaniam, Srinivas Varna, Pavan Annangi, Sigmund Frigstad, S B Subin, Anders Torp, Sundararajan Ramasubramaniam, Srinivas Varna, Sundararajan Ramasubramaniam, Anders Torp, Srinivas Varna, Sb Subin, Pavan Annangi, Sigmund Frigstad
Residual bladder volume measurement is a very important marker for patients with urinary retention problems. To be able to monitor patients with these conditions at the bedside by nurses or in an out patient setting by general physicians, hand held ultrasound devices will be extremely useful. However to increase the usage of these devices by non traditional users, automated tools that can aid them in the scanning and measurement process will be of great help. In our paper, we have developed a robust segmentation algorithm to automatically measure bladder volume by segmenting bladder contours from sagittal and transverse ultrasound views using a combination of machine learning and active contour algorithms...
August 2016: Conference Proceedings: Annual International Conference of the IEEE Engineering in Medicine and Biology Society
https://www.readbyqxmd.com/read/28225591/high-mobility-gasb-nanostructures-cointegrated-with-inas-on-si
#3
Mattias Borg, Heinz Schmid, Johannes Gooth, Marta D Rossell, Davide Cutaia, Moritz Knoedler, Nicolas Bologna, Stephan Wirths, Kirsten E Moselund, Heike Riel
GaSb nanostructures integrated on Si substrates are of high interest for p-type transistors and mid-IR photodetectors. Here, we investigate the MOCVD growth and properties of GaSb nanostructures monolithically integrated onto silicon-on-insulator wafers using template-assisted selective epitaxy. A high degree of morphological control allows for GaSb nanostructures with critical dimensions down to 20 nm. Detailed investigation of growth parameters reveals that the GaSb growth rate is governed by the desorption processes of an Sb surface, and in turn is insensitive to changes in material transport efficiency...
February 22, 2017: ACS Nano
https://www.readbyqxmd.com/read/28225109/on-the-coordination-non-innocence-of-antimony-in-nickel-ii-complexes-of-the-tetradentate-o-ph2p-c6h4-3sb-ligand
#4
J Stuart Jones, Casey R Wade, Mengxi Yang, François P Gabbaï
In a continuation of our investigations into the unusual properties of antimony-based ligands, we have decided to investigate the structure of the complexes formed by the tetradentate ligands (o-(Ph2P)C6H4)3E (E = P (1), As (2), Sb (3)) with NiCl2. We observed that the structure of the resulting complexes depends on the nature of the central pnictogen atom E, with the phosphorus- and arsenic-based systems adopting ionic structures of the type [ClNi(o-(Ph2P)C6H4)3E][Cl] (E = P ([4][Cl]), As ([5][Cl])) while the known antimony complex ClNi(o-(Ph2P)C6H4)3SbCl (6-Cl) is molecular, with a chloride anion bound to the antimony atom trans from the nickel atom...
February 22, 2017: Dalton Transactions: An International Journal of Inorganic Chemistry
https://www.readbyqxmd.com/read/28224151/counterion-induced-crystallization-of-intermetalloid-matryoshka-clusters-sb-pd12-sb20-3-4
#5
Zhenyu Li, Huapeng Ruan, Lulu Wang, Caiping Liu, Li Xu
Two intermetalloid Matryoshka cluster anions [Sb@Pd12@Sb20](3-,4-) obtained from the reaction of KSb and Pd(PPh3)4 were isolated as [K(2,2,2-cryptand)](+) and [K(18-crown-6)](+) salt, respectively, and characterized by X-ray crystallography, EPR measurement and DFT theoretical calculations.
February 22, 2017: Dalton Transactions: An International Journal of Inorganic Chemistry
https://www.readbyqxmd.com/read/28222347/competitive-adsorption-of-as-iii-as-v-sb-iii-and-sb-v-onto-ferrihydrite-in-multi-component-systems-implications-for-mobility-and-distribution
#6
Pengfei Qi, Thomas Pichler
The simultaneous adsorption behavior and competitive interactions between As(III), As(V), Sb(III) and Sb(V) by ferrihydrite were evaluated in multi-component (binary, ternary, quaternary) systems. In binary systems, Sb(III) had a stronger inhibitory influence on As(III) adsorption than Sb(V) did, and As(V) had a stronger inhibitory effect on Sb(V) adsorption than As(III) did. In ternary systems, NO3(-), PO4(3-) and SO4(2-) did not compete with the adsorption of As(III) and Sb(III). NO3(-) and SO4(2-) also had no distinct effect on the adsorption of As(V) and Sb(V), while PO4(3-) competed with As(V) and Sb(V) for surface sites...
February 14, 2017: Journal of Hazardous Materials
https://www.readbyqxmd.com/read/28222334/a-quantification-method-for-determination-of-racemate-praziquantel-and-r-enantiomer-in-rat-plasma-for-comparison-of-their-pharmacokinetics
#7
Danlu Zhang, Haina Wang, Jianbo Ji, Lei Nie, Dequn Sun
Praziquantel is the drug of first choice for the control and treatment of all forms of schistosomiasis. Praziquantel is administered as a racemate, including R-enantiomer and S-enantiomer. Among them, R-enantiomer has main contribution to schistosomicidal activity. In this study, a sensitive and rapid liquid chromatography with tandem mass spectrometry was established and validated to determine the concentration of racemate praziquantel and R-enantiomer in rat plasma after oral administration. Chromatographic separation was performed on an Agilent Zorbax SB-C18 column...
February 14, 2017: Journal of Chromatography. B, Analytical Technologies in the Biomedical and Life Sciences
https://www.readbyqxmd.com/read/28222056/physical-activity-sedentary-behavior-and-inflammatory-and-hemostatic-markers-in-men
#8
Tessa J Parsons, Claudio Sartini, Paul Welsh, Naveed Sattar, Sarah Ash, Lucy T Lennon, S Goya Wannamethee, I-Min Lee, Peter H Whincup, Barbara J Jefferis
PURPOSE: This study aimed to determine whether higher levels of physical activity (PA) and less sedentary behavior (SB) are associated with less inflammation, indicated by inflammatory and hemostatic biomarkers, in older men. METHODS: A cross-sectional study of 1139 men, from the British Regional Heart Study (mean ± SD age = 78 ± 5 yr), and longitudinal analyses of 490 men with two PA measures 1 yr apart were used in this study. Single fasting venous blood samples were analyzed for several biomarkers...
March 2017: Medicine and Science in Sports and Exercise
https://www.readbyqxmd.com/read/28221048/an-application-of-deviance-regulation-theory-to-reduce-alcohol-related-problems-among-college-women-during-spring-break
#9
Robert D Dvorak, Matthew P Kramer, Brittany L Stevenson, Emily M Sargent, Tess M Kilwein
Spring break (SB) can lead to heavy episodic drinking and increased alcohol-related risks. This may be especially relevant for women. The current study utilized deviance regulation theory to increase the use of protective behavioral strategies (PBSs) among female college students on SB. Female college students going on SB (n = 62) completed a screening, a pre-SB intervention (where they were randomly assigned to receive either a positively or negatively framed message about individuals who do or do not use PBS), and a post-SB assessment that provided alcohol and PBS use data for each day of SB (n = 620 person-days)...
February 20, 2017: Psychology of Addictive Behaviors: Journal of the Society of Psychologists in Addictive Behaviors
https://www.readbyqxmd.com/read/28220980/the-fire-ant-social-chromosome-supergene-variant-sb-shows-low-diversity-but-high-divergence-from-sb
#10
Rodrigo Pracana, Anurag Priyam, Ilya Levantis, Richard A Nichols, Yannick Wurm
Variation in social behavior is common yet little is known about the genetic architectures underpinning its evolution. A rare exception is in the fire ant Solenopsis invicta: Alternative variants of a supergene region determine whether a colony will have exactly one or up to dozens of queens. The two variants of this region are carried by a pair of "social chromosomes", SB and Sb, which resemble a pair of sex chromosomes. Recombination is suppressed between the two chromosomes in the supergene region. While the X-like SB can recombine with itself in SB/SB queens, recombination is effectively absent in the Y-like Sb because Sb/Sb queens die before reproducing...
February 21, 2017: Molecular Ecology
https://www.readbyqxmd.com/read/28220185/small-bowel-protection-in-imrt-for-rectal-cancer-a%C3%A2-dosimetric-study-on-supine-vs-prone-position
#11
Julia Koeck, Katharina Kromer, Frank Lohr, Tobias Baack, Kerstin Siebenlist, Sabine Mai, Sylvia Büttner, Jens Fleckenstein, Frederik Wenz
BACKGROUND: This treatment planning study analyzes dose coverage and dose to organs at risk (OAR) in intensity-modulated radiotherapy (IMRT) of rectal cancer and compares prone vs. supine positioning as well as the effect of dose optimization for the small bowel (SB) by additional dose constraints in the inverse planning process. PATIENTS AND METHODS: Based on the CT datasets of ten male patients in both prone and supine position, a total of four different IMRT plans were created for each patient...
February 20, 2017: Strahlentherapie und Onkologie: Organ der Deutschen Röntgengesellschaft ... [et Al]
https://www.readbyqxmd.com/read/28219088/single-bundle-versus-double-bundle-anterior-cruciate-ligament-reconstruction-a-prospective-randomized-controlled-trial-with-6-year-follow-up
#12
Paolo Adravanti, Francesco Dini, Laura de Girolamo, Massimo Cattani, Michele Attilio Rosa
Single-bundle (SB) anterior cruciate ligament (ACL) reconstruction is increasingly used in a large number of patients and it allows obtaining very good clinical and subjective results; however, functional tests show a persistent rotational instability. Biomechanical studies seem to indicate that double-bundle (DB) ACL reconstruction allows to obtain increased anterior and rotational stability compared with SB. The aim of this prospective randomized controlled study was to compare the clinical outcome and the possible osteoarthritic evolution of patients treated either with a SB (freehand transtibial femoral tunnel) or with a DB technique (outside-in for posterolateral femoral tunnel/inside-out for anteromedial femoral tunnel) at a final follow-up of 6 years...
February 20, 2017: Journal of Knee Surgery
https://www.readbyqxmd.com/read/28216897/high-performance-liquid-chromatography-diode-array-detector-method-for-the-simultaneous-determination-of-five-compounds-in-the-pulp-and-seed-of-sea-buckthorn
#13
Lu Zhao, E Wen, Halmuart Upur, Shuge Tian
CONTEXT: Sea buckthorn (Hippophae rhamnoides L.) as a traditional Chinese medicinal plant has various uses in Xinjiang. OBJECTIVE: A reversed-phase rapid-resolution liquid-chromatography method with diode array detector was developed for simultaneous determination of protocatechuic acid, rutin, quercetin, kaempferol, and isorhamnetin in the pulp and seed of sea buckthorn, a widely used traditional Chinese medicine for promoting metabolism and treating scurvy and other diseases...
January 2017: Pharmacognosy Magazine
https://www.readbyqxmd.com/read/28214718/alkyl-substituent-effect-on-photosensitized-inactivation-of-escherichia-coli-by-pyridinium-bonded-p-porphyrins
#14
Jin Matsumoto, Yusaku Suemoto, Hiroki Kanemaru, Kyosuke Takemori, Masato Shigehara, Akari Miyamoto, Haruhiko Yokoi, Masahide Yasuda
Activity of singlet oxygen sensitizers for photoinactivation of bacteria and photodynamic therapy of tumor cells has been evaluated using nonpathogenic model cells, such as Escherichia coli, Saccharomyces cerevisiae, and HeLa cells. Among them, E. coli, gram-negative bacterium, has complex membrane structures in the cell wall, resulting in an impermeable barrier to antimicrobial agents. Therefore, few singlet oxygen sensitizers have photoinactivation activities toward E. coli at low concentrations. Recently polycationic porphyrins have received much attention as a new type of singlet oxygen sensitizers because they have strong binding affinities for DNA and proteins...
February 6, 2017: Journal of Photochemistry and Photobiology. B, Biology
https://www.readbyqxmd.com/read/28214710/a-preliminary-investigation-of-the-relationships-between-historical-crash-and-naturalistic-driving
#15
Anurag Pande, Sai Chand, Neeraj Saxena, Vinayak Dixit, James Loy, Brian Wolshon, Joshua D Kent
This paper describes a project that was undertaken using naturalistic driving data collected via Global Positioning System (GPS) devices to demonstrate a proof-of-concept for proactive safety assessments of crash-prone locations. The main hypothesis for the study is that the segments where drivers have to apply hard braking (higher jerks) more frequently might be the "unsafe" segments with more crashes over a long-term. The linear referencing methodology in ArcMap was used to link the GPS data with roadway characteristic data of US Highway 101 northbound (NB) and southbound (SB) in San Luis Obispo, California...
February 16, 2017: Accident; Analysis and Prevention
https://www.readbyqxmd.com/read/28214362/is-there-an-association-between-verbal-school-bullying-and-possible-sleep-bruxism-in-adolescents
#16
Junia Maria Serra-Negra, Isabela Almeida Pordeus, Patricia Corrêa-Faria, Livia Bonfim Fulgêncio, Saul Martins Paiva, Daniele Manfredini
The aim of this study was to determine the association between verbal school bullying and possible sleep bruxism (SB) in adolescents. A case-control study was carried out at the population level by recruiting 13- to 15-year old participants among the attendants of schools of Itabira, Brazil. The case group was composed of 103 adolescents with possible SB (i.e., self- or parental-reported), while the control group included 206 adolescents without possible SB. All participants answered a questionnaire on the occurrence of their involvement in verbal school bullying episodes, based on the National School of Health Research (PeNSE) as well as an evaluation of their economic class according to the criteria of the Brazilian Association of Research Companies...
February 18, 2017: Journal of Oral Rehabilitation
https://www.readbyqxmd.com/read/28213295/determination-of-imm-h004-a-novel-neuroprotective-agent-in-rat-plasma-and-brain-tissue-by-liquid-chromatography-tandem-mass-spectrometry
#17
Ziqian Zhang, Xiangmeng Wu, Manman Zhao, Yakun Yang, Yan Wang, Jinping Hu, Baolian Wang, Li Sheng, Yan Li
A rapid and sensitive liquid chromatography-tandem mass spectrometry method for determination of IMM-H004, a novel neuroprotective agent, in rat plasma and brain was developed. Plasma and brain tissue homogenate samples containing IMM-H004 and propranolol (internal standard, IS) were prepared by using a direct protein precipitation of acetonitrile. Separation was carried out in Zorbax SB-C18 column at a flow rate of 0.3mL/min utilizing acetonitrile/water as mobile phases which contain 0.5% formic acid (v/v)...
February 6, 2017: Journal of Chromatography. B, Analytical Technologies in the Biomedical and Life Sciences
https://www.readbyqxmd.com/read/28211934/a-computational-assessment-of-the-electronic-thermoelectric-and-defect-properties-of-bournonite-cupbsbs3-and-related-substitutions
#18
Alireza Faghaninia, Guodong Yu, Umut Aydemir, Max Wood, Wei Chen, Gian-Marco Rignanese, G Jeffrey Snyder, Geoffroy Hautier, Anubhav Jain
Bournonite (CuPbSbS3) is an earth-abundant mineral with potential thermoelectric applications. This material has a complex crystal structure (space group Pmn21 #31) and has previously been measured to exhibit a very low thermal conductivity (κ < 1 W m(-1) K(-1) at T ≥ 300 K). In this study, we employ high-throughput density functional theory calculations to investigate how the properties of the bournonite crystal structure change with elemental substitutions. Specifically, we compute the stability and electronic properties of 320 structures generated via substitutions {Na-K-Cu-Ag}{Si-Ge-Sn-Pb}{N-P-As-Sb-Bi}{O-S-Se-Te} in the ABCD3 formula...
February 17, 2017: Physical Chemistry Chemical Physics: PCCP
https://www.readbyqxmd.com/read/28211357/preimplantation-genetic-diagnosis-and-screening-by-array-comparative-genomic-hybridisation-experience-of-more-than-100-cases-in-a-single-centre
#19
J Fc Chow, W Sb Yeung, V Cy Lee, E Yl Lau, P C Ho, E Hy Ng
INTRODUCTION: Preimplantation genetic screening has been proposed to improve the in-vitro fertilisation outcome by screening for aneuploid embryos or blastocysts. This study aimed to report the outcome of 133 cycles of preimplantation genetic diagnosis and screening by array comparative genomic hybridisation. METHODS: This study of case series was conducted in a tertiary assisted reproductive centre in Hong Kong. Patients who underwent preimplantation genetic diagnosis for chromosomal abnormalities or preimplantation genetic screening between 1 April 2012 and 30 June 2015 were included...
February 17, 2017: Hong Kong Medical Journal, Xianggang Yi Xue za Zhi
https://www.readbyqxmd.com/read/28209098/the-predictive-value-of-negative-capsule-endoscopy-for-the-indication-of-obscure-gastrointestinal-bleeding-no-reassurance-in-the-long-term
#20
C Van de Bruaene, P Hindryckx, C Snauwaert, D Dooremont, B Vanduyfhuys, L Vandenabeele, M De Vos, D De Looze
BACKGROUND: Capsule Endoscopy (CE) has become the first-line tool to identify an underlying etiology for Obscure Gastrointestinal Bleeding (OGIB) in the small bowel (SB). This study aims to investigate the long-term outcome of patients with a negative CE. METHODS: Retrospective review of standardized application forms of all patients who underwent CE for OGIB at the Ghent University Hospital between 2002 and 2013. Follow-up data on patients with a negative CE result (n=263) were collected by contacting the referring physician...
September 2016: Acta Gastro-enterologica Belgica
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