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https://www.readbyqxmd.com/read/27923211/study-of-the-thermal-stability-of-studtite-by-in-situ-raman-spectroscopy-and-dft-calculations
#1
Francisco Colmenero, Laura J Bonales, Joaquín Cobos, Vicente Timón
The design of a safe spent nuclear fuel repository requires the knowledge of the stability of the secondary phases which precipitate when water reaches the fuel surface. Studtite is recognized as one of the secondary phases that play a key-role in the mobilization of the radionuclides contained in the spent fuel. Thereby, it has been identified as a product formed under oxidation conditions at the surface of the fuel, and recently found as a corrosion product in the Fukushima-Daiichi nuclear plant accident...
November 29, 2016: Spectrochimica Acta. Part A, Molecular and Biomolecular Spectroscopy
https://www.readbyqxmd.com/read/27923140/h2s-adsorption-onto-cu-zn-ni-nanoparticles-loaded-activated-carbon-and-ni-co-nanoparticles-loaded-%C3%AE-al2o3-optimization-and-adsorption-isotherms
#2
A Daneshyar, M Ghaedi, M M Sabzehmeidani, A Daneshyar
The nanocomposites based on copper, zinc and nickel were loaded on activated carbon (Cu-Zn-Ni-NPs-AC) and cobalt and nickel nanoparticles was loaded on γ-alumina (Ni-Co-NPs-γAl2O3) and applied for removal of hydrogen sulfide (H2S) from natural gas and their efficiency were compared. Cu-Zn-Ni/AC and Ni-Co/γ-Al2O3 was characterized using different techniques such as energy-dispersive X-ray spectroscopy (EDX), X-ray diffraction (XRD) and field emission scanning electron microscopy (FE-SEM). The effects of variables such as amount of adsorbent, flow rate, temperature, pressure and volume of gas on H2S removal were examined and optimum values were found to be 0...
November 21, 2016: Journal of Colloid and Interface Science
https://www.readbyqxmd.com/read/27923138/metallogel-templated-synthesis-and-stabilization-of-silver-particles-and-its-application-in-catalytic-reduction-of-nitro-arene
#3
Mukesh Sharma, Plaban Jyoti Sarma, Manash Jyoti Goswami, Kusum K Bania
Metallogel of iron-carboxylates was obtained from trans-1,2-cyclohexanedicarboxylic acid in dimethylformamide (DMF) at basic condition. Spectroscopic and SEM morphology study of the iron-metallogel revealed that the iron complex with dicarboxylic acid was linked together via carboxylates and led to a supramolecular helical like architecture. The synthesized metallogel served as an excellent template for in-situ reduction of silver ion to silver particles micro to nano scale range. Variation of AgNO3 concentration shepherd to change the morphology of the Ag-particles...
November 20, 2016: Journal of Colloid and Interface Science
https://www.readbyqxmd.com/read/27922092/photocatalytic-reduction-of-co2-by-zno-micro-nanomaterials-with-different-morphologies-and-ratios-of-0001-facets
#4
Xiaodi Liu, Liqun Ye, Shanshan Liu, Yinping Li, Xiaoxu Ji
ZnO microspheres, ZnO microflowers and ZnO nanorods are successfully synthesized via a convenient solvothermal method in distilled water-ethanol mixed medium. The as-prepared ZnO micro/nanomaterials are characterized by XRD, SEM, TEM, HRTEM, XPS, BET, and UV-Vis. The morphologies and exposed facets of the ZnO micro/nanomaterials can be controlled by simply changing the volume ratio of distilled water to ethanol, and their formation mechanisms are also proposed. In addition, the photocatalytic activities of the ZnO samples are investigated towards the photoreduction of CO2 to CO...
December 6, 2016: Scientific Reports
https://www.readbyqxmd.com/read/27921281/colorful-hydrophobic-poly-vinyl-butyral-cationic-dye-fibrous-membranes-via-a-colored-solution-electrospinning-process
#5
Xu Yan, Ming-Hao You, Tao Lou, Miao Yu, Jun-Cheng Zhang, Mao-Gang Gong, Fu-Yan Lv, Yuan-Yuan Huang, Yun-Ze Long
Colorful nanofibrous membranes have attracted much attention for their visual varieties and various functionalities. In this article, a colored solution electrospinning process was used to fabricate colorful hydrophobic poly(vinyl butyral) (PVB)/cationic dye nanofibrous membranes (NFMs) successfully. The color and morphology of these as-spun nanofibrous membranes have been analyzed by colorimetry, spectroscopy, and scanning electron microscopy (SEM). It is shown that the as-spun colorful PVB-based membranes exhibit excellent level-dyeing property and color stability...
December 2016: Nanoscale Research Letters
https://www.readbyqxmd.com/read/27920734/role-of-stressful-life-events-avoidant-coping-styles-and-neuroticism-in-online-game-addiction-among-college-students-a-moderated-mediation-model
#6
Huanhuan Li, Yingmin Zou, Jiaqi Wang, Xuelin Yang
Online game addiction (OGA) is becoming a significant problem worldwide. The aim of this study was to explore the incidence of OGA and the roles of stressful life events, avoidant coping styles (ACSs), and neuroticism in OGA. A total of 651 Chinese college students were selected by random cluster sampling. Subjects completed the Chinese version of Young's eight-item Internet Addiction Scale (CIAS), Online Game Cognition Addiction Scale (OGCAS), Revised Eysenck Personality Questionnaire Short Scale in Chinese (EPQ-RSC), Chinese College-student Stress Questionnaire, and Coping Style Questionnaire...
2016: Frontiers in Psychology
https://www.readbyqxmd.com/read/27920602/a-new-species-of-lathys-from-turkey-araneae-dictynidae
#7
Recep Sulhi Özkütük, Yuri M Marusik, Mert Elverici, Kadir Boğaç Kunt
A new species, Lathys ankaraensissp. n., is described based on the material collected in the Central Anatolia. The new species belongs to the humilis-group. Habitus, as well as copulatory organs of both sexes, are described and illustrated by means of line drawings and digital and SEM photographs. A key for the four Lathys species known in Turkey is also provided.
2016: ZooKeys
https://www.readbyqxmd.com/read/27920500/design-synthesis-and-evaluation-of-vegf-sirna-crs-as-a-novel-vector-for-gene-delivery
#8
Wen Zhao, Yifan Zhang, Xueyun Jiang, Chunying Cui
Small interfering RNA (siRNA) delivery is a prospective method in gene therapy, but it has application limitations such as negative charge, water solubility and high molecular weight. In this study, a safe and efficient nano-vector, CRS, was designed and synthesized to facilitate siRNA delivery. Physical and chemical properties of VEGF-siRNA/CRS were characterized by methods including scanning electron microscopy (SEM), transmission electron microscopy, zeta potential (ζ) measurement, drug-releasing rate measurement, gel electrophoresis and confocal microscopy...
2016: Drug Design, Development and Therapy
https://www.readbyqxmd.com/read/27920476/self-expanding-metal-stents-for-the-palliation-of-malignant-gastric-outlet-obstruction-in-patients-with-peritoneal-carcinomatosis
#9
Christoph Rademacher, Matthias Bechtler, Steffen Schneider, Bettina Hartmann, Johannes Striegel, Ralf Jakobs
AIM: To evaluate the efficacy of self-expanding metal stents (SEMS) for the palliation of malignant gastric outlet obstruction in patients with and without peritoneal carcinomatosis (PC). METHODS: We performed a retrospective analysis of 62 patients who underwent SEMS placement for treatment of malignant gastroduodenal obstruction at our hospital over a six-year period. Stents were deployed through the scope under combined fluoroscopic and endoscopic guidance. Technical success was defined as successful stent placement and expansion...
November 21, 2016: World Journal of Gastroenterology: WJG
https://www.readbyqxmd.com/read/27920411/glycemic-indices-glycemic-load-and-glycemic-response-for-seventeen-varieties-of-dates-grown-in-saudi-arabia
#10
Metab Ali AlGeffari, Ebtehal Solaiman Almogbel, Homaidan Turki Alhomaidan, Ragab El-Mergawi, Issam Alsaed Barrimah
BACKGROUND: Dates are consumed worldwide, and are an important fruit for many individuals in Saudi Arabia. Currently, limited information is available on the glycemic indices of different date varieties. OBJECTIVES: To determine the glycemic index (GI), glycemic load (GL) and glycemic response for 17 common date varieties in Saudi Arabia. DESIGN: Prospective clinical trial on healthy subjects. SETTING: College of Medicine, Qassim University, Buraydah, Saudi Arabia...
November 2016: Annals of Saudi Medicine
https://www.readbyqxmd.com/read/27919840/development-fabrication-and-evaluation-of-a-novel-biomimetic-human-breast-tissue-derived-breast-implant-surface
#11
S Barr, E W Hill, A Bayat
: Breast implant use has tripled in the last decade with over 320,000 breast implant based reconstructions and augmentations performed in the US per annum. Unfortunately a considerable number of women will experience capsular contracture, the irrepressible and disfiguring, tightening and hardening of the fibrous capsule that envelops the implant. Functionalising implant surfaces with biocompatible tissue-specific textures may improve in-vivo performance. A novel biomimetic breast implant is presented here with anti-inflammatory in-vitro abilities...
December 2, 2016: Acta Biomaterialia
https://www.readbyqxmd.com/read/27919817/selective-adsorption-of-cr-vi-ions-from-aqueous-solutions-using-cr-6-imprinted-pebax-chitosan-go-aptes-nanofibrous-adsorbent
#12
Mohammadmahdi Etemadi, Saman Samadi, Shabnam Sharif Yazd, Pooya Jafari, Negin Yousefi, Majid Aliabadi
In the present study, a novel Cr(6+)-imprinted Pebax/chitosan/GO/APTES nanofibrous adsorbent (Cr(6+)-PCGA) was prepared and its performance was compared with PCGA nanofibers for selective sorption of Cr(VI) ions from aqueous solutions. The prepared nanofibers were characterized using FTIR, SEM and EDAX analysis. The influence of batch sorption experiments including GO/APTES content, pH, contact time, Cr(VI) initial concentration and temperature on the Cr(VI) sorption efficiency using synthesized nanofibers was investigated...
December 2, 2016: International Journal of Biological Macromolecules
https://www.readbyqxmd.com/read/27919814/basil-seed-mucilage-as-a-new-source-for-electrospinning-production-and-physicochemical-characterization
#13
Forouzan Kurd, Milad Fathi, Hajar Shekarchizadeh
In this study nanofibers were prepared via the electrospinning technique by basil seed mucilage (BSM) as a new source of hydrocolloid. Polyvinyl alcohol (PVA) was used as an aiding agent. Viscosity and electrical conductivity of BSM/PVA solutions of different volume ratios (100:0, 80:20, 60:40, 40:60, 20:80 and 0:100) were in the range of 790-1300cP and 745-2140μS/cm, respectively. Morphology of nanofibers were investigated using scanning electron microscopy (SEM) that showed an average diameter range of 179-390nm...
December 2, 2016: International Journal of Biological Macromolecules
https://www.readbyqxmd.com/read/27919734/microdamage-induced-by-in-vivo-reference-point-indentation-in-mice-is-repaired-by-osteocyte-apoptosis-mediated-remodeling
#14
Oran D Kennedy, Matin Lendhey, Peter Mauer, Anaya Philip, Jelena Basta-Pljakic, Mitchell B Schaffler
Reference Point Indentation (RPI) is a technology that is designed to measure mechanical properties that relate to bone toughness, or its ability to resist crack growth, in vivo. Independent of the mechanical parameters generated by RPI, its ability to initiate and propagate microcracks in bone is itself an interesting issue. Microcracks have a crucial biological relevance in bone, are central to its ability to maintain homeostasis. In healthy tissues, a process of targeted remodeling routinely repairs microcracks in a process mediated by osteocyte apoptosis...
December 2, 2016: Bone
https://www.readbyqxmd.com/read/27919539/nanostructured-fusiform-hydroxyapatite-particles-precipitated-from-aquaculture-wastewater
#15
Covadonga Correas, Michael L Gerardo, Alexander M Lord, Michael B Ward, Enrico Andreoli, Andrew R Barron
The present work represents a new approach for the isolation of uniform nano particulate hydroxyapatite (HAp). The chemical characterization of a calcium phosphate product obtained from industrial trout farm aquaculture wastewater by two different routes, washing either with a basic aqueous medium (washNaOH) or followed by a further washing with ethanol (washEtOH), is explored. Characterization of the isolated materials includes morphology studies (SEM and TEM), structural (XRD, electron diffraction), compositional (EDX) and thermogravimetric analysis (TGA)...
December 2, 2016: Chemosphere
https://www.readbyqxmd.com/read/27919518/polydopamine-decorated-3d-nickel-foam-for-extraction-of-sixteen-polycyclic-aromatic-hydrocarbons
#16
Ying Cai, Zhihong Yan, Ming Yang, Xiaoying Huang, Weiping Min, Lijia Wang, Qingyun Cai
In this work, polydopamine coated 3D nickel foam (NF-PDA) was prepared and applied as sorbent for the solid phase extraction (SPE) of 16 polycyclic aromatic hydrocarbons (PAHs) from water samples. NF-PDA were synthesized by situ oxidative self-polymerization procedure and characterized by using the techniques of scanning electron microscopy (SEM), energy dispersive spectrum analysis (EDS) and X-ray photoelectron spectroscopy (XPS). Its performance was evaluated by the SPE of 16 PAHs from water samples, followed by gas chromatography-mass spectrometrical (GC-MS) analysis...
November 21, 2016: Journal of Chromatography. A
https://www.readbyqxmd.com/read/27919395/measuring-patient-trust-in-telemedicine-services-development-of-a-survey-instrument-and-its-validation-for-an-anticoagulation-web-service
#17
Lex van Velsen, Monique Tabak, Hermie Hermens
BACKGROUND: For many eServices, end-user trust is a crucial prerequisite for use. For the telemedicine context however, knowledge about the coming about and measurement of end-user trust is scarce. OBJECTIVE: To develop and validate the PAtient Trust Assessment Tool (PATAT): a survey instrument to quantitatively assess patient trust in a telemedicine service. METHODS: Informed by focus groups, we developed a survey that includes measurement scales for the following factors: trust in the care organization, care professional, treatment, and technology, as well as a scale that assesses a holistic view on trust in the telemedicine service...
January 2017: International Journal of Medical Informatics
https://www.readbyqxmd.com/read/27919228/antimicrobial-activity-and-safety-evaluation-of-peptides-isolated-from-the-hemoglobin-of-chickens
#18
Fengjiao Hu, Qiaoxing Wu, Shuang Song, Ruiping She, Yue Zhao, Yifei Yang, Meikun Zhang, Fang Du, Majid Hussain Soomro, Ruihan Shi
BACKGROUND: Hemoglobin is a rich source of biological peptides. As a byproduct and even wastewater of poultry-slaughtering facilities, chicken blood is one of the most abundant source of hemoglobin. RESULTS: In this study, the chicken hemoglobin antimicrobial peptides (CHAP) were isolated and the antimicrobial and bactericidal activities were tested by the agarose diffusion assay, minimum inhibitory concentration (MIC) analysis, minimal bactericidal concentration (MBC) analysis, and time-dependent inhibitory and bactericidal assays...
December 5, 2016: BMC Microbiology
https://www.readbyqxmd.com/read/27918899/the-effects-of-sost-on-implant-osseointegration-in-ovariectomy-osteoporotic-mice
#19
Rui Shu, Dongqing Ai, Ding Bai, Jinlin Song, Mengyuan Zhao, Xianglong Han
OBJECTIVE: Osteoporosis is a risk factor for implant fixation failure. The inhibition of sclerostin effectively improves bone formation and bone remodeling. Therefore, this study investigated whether SOST deficiency enhances the osseointegration of implants in a mouse model of osteoporosis induced by ovariectomy (OVX). DESIGN: Osteoporosis was induced in female C57BL/6 and SOST deficient mice by OVX. Titanium implants were placed in the bilateral distal aspects of the femurs...
November 21, 2016: Archives of Oral Biology
https://www.readbyqxmd.com/read/27918596/degeneration-in-acl-injured-knees-with-and-without-reconstruction-in-relation-to-muscle-size-and-fat-content-data-from-the-osteoarthritis-initiative
#20
Pia M Jungmann, Thomas Baum, Michael C Nevitt, Lorenzo Nardo, Alexandra S Gersing, Nancy E Lane, Charles E McCulloch, Ernst J Rummeny, Thomas M Link
BACKGROUND: Anterior cruciate ligaments (ACL) injuries represent a major risk factor for early osteoarthritis (OA). PURPOSE: To evaluate the prevalence and 4-year progression of knee OA measured with 3T MR-imaging in individuals with ruptured, reconstructed or normal ACL and to assess the impact of thigh muscle characteristics. METHODS: A total of 54 knees (23/54 male, 31/54 female) were recruited from the Osteoarthritis Initiative (OAI). At baseline, 15/54 subjects had prevalent ACL ruptures and 15/54 subjects had prevalent ACL reconstruction (24/54 normal ACL)...
2016: PloS One
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