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Enhanced photoluminescence and efficient photocatalytic activity of Sn doped barium titanate
Publication date: Available online 22 February 2020Source: Materials Today: ProceedingsAuthor(s): Richa Tomar, Roopali Prajapati, Sweta Verma, Neha RanaAbstractThe present study investigates the comparative photoluminescent and photocatalytic activity of BaTiO3 and Sn doped BaTiO3. The materials were synthesized through conventional Sol-Gel method. A number of techniques have been employed to affirm the morphology, composition, photoluminescent and photocatalytic properties of the materials; these include UV-visible spectroscopy assisted in quantifying the concentration difference of degraded dye. The synthesis of Sn doped...
Source: Materials Today: Proceedings - February 23, 2020 Category: Materials Science Source Type: research
Epidemiological analysis of Arcanobacterium phocae isolated from cases of mink dermatitis of a single farm
Publication date: Available online 22 February 2020Source: Veterinary MicrobiologyAuthor(s): Mazen Alssahen, Abdulwahed Ahmed Hassan, Osama Sammra, Christoph Lämmler, Mirja Raunio Saarnisto, Maria Borowiak, Burkhard Malorny, Jörg Rau, Ellen Prenger-Berninghoff, Madelein Plötz, Amir AbdulmawjoodAbstractThe present study was designed to identify nine Arcanobacterium phocae strains isolated from cases of mink dermatitis of a single farm in Finland and characterize the strains for epidemiological relationships. All nine strains and previously described A. phocae used for comparative purposes were identified and further char...
Source: Veterinary Microbiology - February 23, 2020 Category: Veterinary Research Source Type: research
Metronidazole and Cephalexin degradation by using of Urea/TiO2/ZnFe2O4/Clinoptiloite catalyst under visible-light irradiation and ozone injection
Publication date: Available online 22 February 2020Source: Journal of Molecular LiquidsAuthor(s): Maryam Aram, Mehrdad Farhadian, Ali Reza Solaimany Nazar, Shaharam Tangestaninejad, Parisa Eskandari, Byong-Hun JeonAbstractCephalexin (CEX) and metronidazole (MNZ) degradation were photodegraded using the synthesized Urea/TiO2/ZnFe2O4/Zeolite catalyst under visible light irradiation. Diffuse reflectance ultraviolet–visible spectroscopy (UV–Vis DRS) and photoluminescence (PL) analysis approved the modification of TiO2 by Urea and ZnFe2O4 compounds increased the absorption edge of catalyst to 590 nm and decreased the elec...
Source: Journal of Molecular Liquids - February 23, 2020 Category: Molecular Biology Source Type: research
Novel all-solid-state Z-scheme SnO2/Pt/In2O3 photocatalyst with boosted photocatalytic performance on water splitting and 2,4-dichlorophenol degradation under visible light
Publication date: Available online 20 February 2020Source: Chemical Engineering JournalAuthor(s): Yukun Sun, Qi Zhu, Bo Bai, Yuliang Li, Chi HeAbstractFabricating Z-scheme photocatalytic system is of great significance for water splitting and degradation of organic pollutants. However, it is highly challenging to select suitable materials to form Z-scheme photocatalysis systems due to the harsh requirement for band edge levels alignment and interfacial contact. In this work, a novel all-solid-state Pt-bridge SnO2/Pt/In2O3 Z-scheme photocatalyst was prepared by an ingenious in situ deposition and photo-reduction protocol. T...
Source: Chemical Engineering Journal - February 23, 2020 Category: Chemistry Source Type: research
Fe2O3-promoted interface charge separation and visible-light activity of Fe2O3@Zn0.3Cd0.7S
Publication date: 1 May 2020Source: Materials Chemistry and Physics, Volume 246Author(s): Zain Ul Abideen, Fei TengAbstractIn this work, Fe2O3@Zn0.3Cd0.7S heterojunction (Fe@ZCS) is obtained by a simple hydrothermal method. Compared with ZCS (552 nm), a red shift of absorption edge obviously occurs for Fe@ZCS (622 nm); the photocurrent of Fe@ZCS increases by 2.6 times, and PL peak of Fe@ZCS greatly decreases, indicating an obviously decreased charge recombination efficiency and more electrons move to surface from bulk. After 80 min under irradiation (λ ≥ 420 nm), 87%, 45% and 16% of methylene blue (MB) are degrade...
Source: Materials Chemistry and Physics - February 22, 2020 Category: Materials Science Source Type: research
Luminescent switch of polysaccharide-peptide-quantum dot nanostructures for targeted-intracellular imaging of glioblastoma cells
Publication date: Available online 21 February 2020Source: Journal of Molecular LiquidsAuthor(s): Isadora C. Carvalho, Herman S. Mansur, Alexandra A.P. Mansur, Sandhra M. Carvalho, Luiz Carlos A. de Oliveira, Maria de Fatima LeiteAbstractGlioblastoma multiforme (or GBM) remains one of the deadliest types of brain cancers. Nanomedicine can offer new strategies for fighting against GBM by combining the earliest possible diagnosis with multiple options of therapy. Hence, in this work, cysteine (Cys) and Poly-L-Arginine (PA) moieties were grafted to carboxymethyl cellulose (CMC) to produce biofunctional hybridized macromolecul...
Source: Journal of Molecular Liquids - February 22, 2020 Category: Molecular Biology Source Type: research
Nickel substituted oxygen deficient nanoporous lithium ferrite based green energy device hydroelectric cell
Publication date: 25 June 2020Source: Journal of Alloys and Compounds, Volume 827Author(s): Sandeep Saini, Jyoti Shah, R.K. Kotnala, K.L. YadavAbstractIn green energy generation, recently Hydroelectric cell (HEC) by dissociating the water molecules at room temperature has taken a big stride among other alternative green energy sources. In this work, another unique novel material Ni substituted lithium ferrite (LNFO) for the fabrication of hydroelectric cell to generate green electricity has been reported. Oxygen deficient nanoporous LNFO has been synthesised by the Solid-State reaction method. Special processing steps were...
Source: Journal of Alloys and Compounds - February 21, 2020 Category: Chemistry Source Type: research
Variations and morphometrics of palmaris longus in fetuses: a meta-analysis of cadaveric studies
AbstractThe palmaris longus muscle, and its tendon, is one of the most variable muscles in humans. Though it has been extensively researched in the adult population, its variations and development in the fetal period were rarely investigated. The aim of this meta-analysis is to conduct an evidence synthesis on PL variations and the prevalence of its agenesis during intrauterine development. Seven studies met the inclusion criteria comprising 497 fetuses and 1027 fetal limbs. The true and crude weighted prevalence rates were of 81.2% and 77%, respectively. The bilateral and unilateral prevalence estimates were of 62.2% and ...
Source: Surgical and Radiologic Anatomy - February 21, 2020 Category: Anatomy Source Type: research
A photocleavable and mass spectrometric DNA-peptide probe enables fast and specific enzyme-free detection of microRNA.
In this study, a novel enzyme-free assay was developed that relies on stacking hybridization and a photocleavable DNA-PL-peptide probe, which contains a reporter peptide (AVLGVDPFR), a photocleavable o-nitrobenzyl derivative linker and a detection DNA sequence that is complementary to a part of the target miRNA (e.g., miR-21, miR-125a or miR-200c). Stacking hybridization enabled the DNA-PL-peptide probe to capture DNA in a contiguous tandem arrangement to generate a long DNA single strand complementary to the target miRNA. Then, photolysis was initiated to rapidly release the reporter peptide, and the reporter peptide was ...
Source: Talanta - February 21, 2020 Category: Chemistry Authors: Kuang Y, Liu L, Wang Z, Chen Y Tags: Talanta Source Type: research
Efficacy of web-assisted self-help for parents of children with ADHD (WASH) – a three-arm randomized trial under field/routine care conditions in Germany
Current clinical guidelines recommend parent management training (PMT) in the treatment of attention-deficit/hyperactivity disorder (ADHD) and oppositional defiant disorder (ODD). However, (a) a lack of supply...
Source: BMC Psychiatry - February 21, 2020 Category: Psychiatry Authors: Manfred D öpfner, Laura Wähnke, Marie-Theres Klemp, Judith Mühlenmeister, Stephanie Schürmann, Martin Hellmich and Julia Plück Tags: Study protocol Source Type: research
Phosphor Polymer Nanocomposite: SrAl2O4:Eu2+, Dy3+ Embedded PMMA for Solid-State Applications
Publication date: 2020Source: Materials Today: Proceedings, Volume 21, Part 4Author(s): Sumara Khursheed, Gulzar Ahmad Sheergojri, Jitendra SharmaAbstractIn this work, PMMA/ SrAl2O4:Eu2+, Dy3+ polymer nanocomposite films were synthesized by solution casting method. The crystal structure, morphological, photoluminescence properties and thermal properties were investigated using various characterization techniques. Prepared polymer nanocomposite films (PNC) were characterized using X-ray powder diffraction (XRD), scanning electron microscopy (SEM), Fourier transform infrared spectroscopy (FTIR) and Raman spectroscopy for its...
Source: Materials Today: Proceedings - February 21, 2020 Category: Materials Science Source Type: research
Study of Sonication Assisted Synthesis of Molybdenum Disulfide (MoS2) Nanosheets
Publication date: 2020Source: Materials Today: Proceedings, Volume 21, Part 4Author(s): Vignesh, Siddharth Kaushik, Umesh K.Tiwari, Ravi Kant Choubey, Kamaldeep Singh, Ravindra K SinhaAbstractHerein, we report the two separate processes of MoS2 synthesis via sonication assisted liquid phase technique. The first process involves bath sonication of bulk MoS2 dissolved in NMP for five hours followed by centrifugation. In addition to the bath sonication, the second process involves probe sonication for two hours at room temperature. A comparative characterization study of the exfoliated MoS2 nanosheets is performed by UV-Vis, ...
Source: Materials Today: Proceedings - February 21, 2020 Category: Materials Science Source Type: research
Effect of Al Doping on Hydrothermal Growth and Physical Properties of Doped ZnO Nanoarrays for Optoelectronic Applications
Publication date: 2020Source: Materials Today: Proceedings, Volume 21, Part 4Author(s): Manish Baboo Agarwal, M. Malaidurai, Akash Sharma, R. ThangavelAbstractRenewable energy production via solar energy is a promising solution to advent the globally mounting energy needs. Therefore, our work has been planned to develop, high efficient optoelectronic devices, which are cost effective and easily fabricated. Successfully, we developed Al doped ZnO nanorods (NRs) by two step process. Initially by using sol-gel technique we grow the seed layers and further we succeed ZnO nanorods by a simple hydrothermal process without using ...
Source: Materials Today: Proceedings - February 21, 2020 Category: Materials Science Source Type: research
The impact of PUFA on cell responses: caution should be exercised when selecting PUFA concentrations in cell culture
The fatty acid composition of human cells has an impact on many cellular functions [1 –4]. In addition to their role in energy storage in the form of triglycerides (TG), fatty acids are also major components of membrane phospholipids (PL), thus controlling cell membranes fluidity and integrity [5–7]. In particular, polyunsaturated fatty acid (PUFA) from the n-6 and n-3 families s uch as arachidonic acid (AA, 20:4 n-6) and eicosapentaenoic acid (EPA, 20:5 n-3) are important components of cellular membranes that perform signaling functions, can serve as ligands for nuclear receptors and are precursors to lipid mediators [8–12].
Source: Prostaglandins, Leukotrienes and Essential Fatty Acids - February 21, 2020 Category: Biomedical Science Authors: Maroua Mbarik, Roody S Biam, Philippe-Pierre Robichaud, Marc E. Surette Tags: Original research article Source Type: research
Evaluation of Whole-Genome Sequence, Genetic Diversity, and Agronomic Traits of Basmati Rice (Oryza sativa L.)
Basmati is considered a unique varietal group of rice (Oryza sativa L.) because of its aroma and superior grain quality. Previous genetic analyses of rice showed that most of the Basmati varieties are classified into the aromatic group. Despite various efforts, genomic relationship of Basmati rice with other varietal groups and genomic variation in Basmati rice are yet to be understood. In the present study, we resequenced the whole genome of three traditional Basmati varieties at a coverage of more than 25X using Illumina HiSeq2500 and mapped the obtained sequences to the reference genome sequences of Nipponbare (japonica...
Source: Frontiers in Genetics - February 21, 2020 Category: Genetics & Stem Cells Source Type: research
The enhanced photodegradation of bisphenol A by TiO2/C3N4 composites.
Abstract A new photocatalyst of TiO2/C3N4 composite (TiO2/g-C3N4) was synthesized by the hydrothermal method. The characterization showed that TiO2/g-C3N4 extended absorption light range and enhanced generation efficiency of photo-induced electron. Under the simulated solar irradiation, the photodegradation rate of bisphenol A (BPA) by TiO2/g-C3N4 was twice as fast as that of g-C3N4. Furthermore, TiO2/g-C3N4 presented the good stability and excellent selectivity for BPA degradation. The high degradation rate of BPA by TiO2/g-C3N4 was demonstrated to be superoxide radical (·O2-) and singlet oxygen (1O2) by radical...
Source: Environmental Research - February 20, 2020 Category: Environmental Health Authors: Mei P, Wang H, Guo H, Zhang N, Ji S, Ma Y, Xu J, Li Y, Alsulami H, Alhodaly MS, Hayat T, Sun Y Tags: Environ Res Source Type: research
CD32a polymorphism rs1801274 affects the risk of Kawasaki disease.
Conclusion: CD32a polymorphism rs1801274 has strong relation to KD onset, and the presence of its A allele could elevate the disease incidence. PMID: 32072832 [PubMed - in process]
Source: Artificial Cells, Nanomedicine and Biotechnology - February 20, 2020 Category: Biotechnology Tags: Artif Cells Nanomed Biotechnol Source Type: research
Successful electrospinning fabrication of ZrO2 nanofibers: A detailed physical – chemical characterization study
Publication date: Available online 18 February 2020Source: Journal of Alloys and CompoundsAuthor(s): Saba Khalili, Hossein Mahmoudi ChenariAbstractElectrospinning fabrication of Zirconia nanofibers was successfully achieved, followed by different thermal treatment. A careful physical characterization study was performed based on the calcination temperature effect, which was confirmed by a wide range of analysis such as SEM, TG-DT analysis, XRD, FT-IR, DRS, VSM, and PL spectra. The morphological characterization of both polymer and ceramic nanofibers was achieved by SEM images through an image analyzing software. The averag...
Source: Journal of Alloys and Compounds - February 20, 2020 Category: Chemistry Source Type: research
Carbon quantum dots assisted strategy to synthesize Co@NC for boosting photocatalytic hydrogen evolution performance of CdS
Publication date: 1 June 2020Source: Chemical Engineering Journal, Volume 389Author(s): Xiangyu Meng, Chenchen Zhang, Congzhao Dong, Wanjun Sun, Dong Ji, Yong DingAbstractPhotocatalytic water splitting accompanied by the hydrogen production as a prospective method has been placed on solving the double issues of the energy crisis and environment pollution. Therefore, the development of stable and efficient hydrogen evolving photocatalysts is pretty important and urgent. Herein, the Co@NC (Co nanoparticles wrapped by nitrogen doped carbon layers) derived from the mixture of carbon quantum dots (CQDs) and Co2+ as the cocataly...
Source: Chemical Engineering Journal - February 20, 2020 Category: Chemistry Source Type: research
A 4-Year Profile of Game Demands in Elite Women's Division I College Basketball
Ransdell, LB, Murray, T, Gao, Y, Jones, P, and Bycura, D. A 4-year profile of game demands in elite women's Division I college basketball. J Strength Cond Res 34(3): 632–638, 2020—Workload for a Division I women's collegiate basketball team (0.817 win percentage) was examined by: (a) season, (b) player position, and (c) game outcome (wins vs. losses). Female athletes (n = 6, mean 19.7 ± 1.5 years, at beginning of study) wore Catapult S5 units during 91.8% of games over a 4-year period. Average PlayerLoad, PlayerLoad per minute (PL·min−1), high inertial movement analysis (high-IMA), and jumps were quantified using C...
Source: Journal of Strength and Conditioning Research - February 20, 2020 Category: Sports Medicine Tags: Original Research Source Type: research
Bioavailability of aspirin in fasted and fed states of a novel pharmaceutical lipid aspirin complex formulation
AbstractDyspeptic symptoms are common with aspirin and clinicians frequently recommend that it be taken with food to reduce these side effects. However, food can interfere with absorption, especially with enteric-coated aspirin formulations. We evaluated whether food interferes with the bioavailability of a new, pharmaceutical lipid-aspirin complex (PL-ASA) liquid-filled capsule formulation. In this randomized, open label, crossover study, 20 healthy volunteers fasted for ≥ 10 h and then randomized as either “fasted”, receiving 650 mg of PL-ASA, or as “fed”, with a standard high-fat meal and 650 mg of PL-...
Source: Journal of Thrombosis and Thrombolysis - February 20, 2020 Category: Hematology Source Type: research
In vitro study of surface alterations to polyetheretherketone and titanium and their effect upon human gingival fibroblasts
ConclusionsLaser-modified titanium and PEEK surfaces led to guided gingival fibroblast attachment. Plasma treatment of PEEK surfaces increased the wettability of this polymer and improved proliferation of HGF.
Source: The Journal of Prosthetic Dentistry - February 19, 2020 Category: Dentistry Source Type: research
Optical and photocatalytic response to solvent-based synthesis of SnO2 nanostructures
Publication date: Available online 18 February 2020Source: Materials Today: ProceedingsAuthor(s): Sukriti, Prakash ChandAbstractThe effect of solvents on the structural, optical and photocatalytic properties of SnO2 nanostructures, synthesized using precipitation method, was investigated using X-ray diffraction (XRD), scanning electron microscopy (SEM), Energy Dispersive X-ray spectroscopy (EDS) and photoluminescence (PL) spectroscopy. The tetragonal rutile structure of the synthesized samples with average crystallite size ranging from 23 nm to 6 nm has been confirmed using XRD. The morphological and elemental composit...
Source: Materials Today: Proceedings - February 19, 2020 Category: Materials Science Source Type: research
Undoped CaSO4 showing highly enhanced radio-photoluminescence properties
Publication date: Available online 19 February 2020Source: Materials Today CommunicationsAuthor(s): Go Okada, Yasuhiro Koguchi, Takayuki Yanagida, Hidehito NantoAbstractIn this paper, we report that undoped CaSO4 shows radio-photoluminescence (RPL) properties. The RPL is a rare phenomenon in which a luminescence centre is generated by ionizing radiation. This material, as prepared, does not show photoluminescence (PL) whereas a strong PL appears in irradiated material with a broad emission band peaking around 690 nm under 590 nm of excitation. The sensitivity of RPL to x-ray dose is about 10 times higher than that of c...
Source: Materials Today Communications - February 19, 2020 Category: Materials Science Source Type: research
Influence of bias voltage on optical and structural characteristics of Cu3N films deposited by reactive RF magnetron sputtering in a pure nitrogen atmosphere
Publication date: 15 June 2020Source: Materials Science in Semiconductor Processing, Volume 112Author(s): Mohammad Reza Zamani Meymian, Ali Delavari Heravi, Ali KosarimehrAbstractCopper nitride (Cu3N) thin films were deposited on Soda-lime glass substrates by reactive radio-frequency (rf) magnetron sputtering in a pure nitrogen ambient, with different bias voltages (i.e., 0, 50, 150 and 250 V) applied to the substrate holder. The effects of DC bias voltage on the structural, morphological and optical properties of the Cu3N thin films were investigated by X-ray diffraction (XRD), scanning electron microscopy (SEM), atomic ...
Source: Materials Science in Semiconductor Processing - February 19, 2020 Category: Materials Science Source Type: research
Effect of Sm3+ doping on optical properties of Mg2P2O7 and Mg3P2O8 phosphor
Publication date: Available online 18 February 2020Source: Materials Chemistry and PhysicsAuthor(s): Rubby Mahajan, Ram PrakashAbstractReddish-orange emitting Sm3+ activated Mg2P2O7 and Mg3P2O8 (or Mg3(PO4)2) phosphors are synthesized via solution combustion method. The structural, vibrational and optical properties of phosphors are investigated in detail. Raman spectroscopy results reveal that Mg2P2O7:Sm3+ (2 mole %) and Mg3P2O8:Sm3+ (1 mole %) phosphors show sharp band at 1061 cm-1 and 983 cm-1, respectively. Photoluminescence (PL) results indicate that the optimum molar concentration of Mg2P2O7:Sm3+ and Mg3P2O8:Sm3+ pho...
Source: Materials Chemistry and Physics - February 19, 2020 Category: Materials Science Source Type: research
Fe2O3-promoted interface charge separation and visible-light activity of Fe@ZCS
Publication date: Available online 18 February 2020Source: Materials Chemistry and PhysicsAuthor(s): Zain Ul Abideen, Fei TengAbstractIn this work, Fe2O3@Zn0.3Cd0.7S heterojunction (Fe@ZCS) is obtained by hydrothermal method. Compared with ZCS (552 nm), a red shift of absorption edge obviously occurs for Fe@ZCS (622 nm); the photocurrent of Fe@ZCS increases by 2.6 times, and PL peak of Fe@ZCS greatly decreases, indicating an obviously decreased charge recombination efficiency; more electrons move to surface from bulk. After 80 min under irradiation (λ ≥ 420 nm), 87%, 45% and 16% of methylene blue (MB) are de...
Source: Materials Chemistry and Physics - February 19, 2020 Category: Materials Science Source Type: research
Facile synthesis, characterization and electrochemical performance of nickel oxide nanoparticles prepared by thermal decomposition
Publication date: May 2020Source: Scripta Materialia, Volume 181Author(s): Aliakbar Dehno Khalaji, Marketa Jarosova, Pavel Machek, Kunfeng Chen, Dongfeng XueAbstractSpherical-like NiO nanoparticles were synthesized by calcination of a new nickel precursor and characterized by FT-IR, UV–Vis, PL, XRD and TEM. Also, the electrochemical properties of the NiO products were studied. The results indicate that NiO product shows high reversible capacity of 992 mAh g−1 at current density of 100 mA g−1 and exhibits high rate performance of 675 mA h−1 at current density of 1000 mA g−1. The enhanced anode performance ...
Source: Scripta Materialia - February 19, 2020 Category: Materials Science Source Type: research
Boron nitride nanotubes radiolabeled with 153Sm and 159Gd: Potential application in nanomedicine.
Abstract Boron nitride nanotubes (BNNTs) have been growing in notoriety in the development of systems aiming bioapplications. In this work we conducted an investigation about the mechanisms involved in the incorporation of samarium and gadolinium in BNNTs. The process was performed by the reduction of samarium and gadolinium oxides (Sm2O3 and Gd2O3, respectively) in the presence of NH3 gas (witch decomposes into N2 and H2) at high temperatures. Various characterization techniques were conducted to elucidate how Sm and Gd are introduced into the BNNT structure. Biological in vitro assays were performed with human f...
Source: Applied Radiation and Isotopes - February 19, 2020 Category: Radiology Authors: da Silva WM, de Andrade Alves E Silva RH, Cipreste MF, Andrade GF, Gastelois PL, de Almeida Macedo WA, de Sousa EMB Tags: Appl Radiat Isot Source Type: research
Prefrontal cortex is associated with the rapid onset of parental behavior in inexperienced adult mice (C57BL/6).
Abstract There is significant variability in the immediate behavioral response displayed by inexperienced adult mice when exposed to pups for the first time. The aim of this study was to determine which brain regions were engaged (higher c-Fos-immunoreactivity, c-Fos-ir) when virgin females, that were exposed to pups for 15 or 60 min, displayed full parental behavior (FPB), partial parental behavior (PPB), or non-parental behavior (NPB), or virgin males displayed PPB or infanticidal behavior (IB). The number of c-Fos-ir neurons in the prelimbic cortex (PL) was higher in parental females than in the NPB group (af...
Source: Behavioural Brain Research - February 19, 2020 Category: Neurology Authors: Alsina-Llanes M, Olazábal DE Tags: Behav Brain Res Source Type: research
Plasmin-mediated proteolysis of human factor IXa in the presence of calcium/phospholipid: Conversion of procoagulant factor IXa to a fibrinolytic enhancer.
CONCLUSION: Plasmin cleavage at Lys316↓Gly317 abrogates FIXaβ coagulant activity, whereas additional cleavage at Lys413↓Leu414 converts it into a fibrinolytic enhancer. PMID: 32073726 [PubMed - as supplied by publisher]
Source: Thrombosis and Haemostasis - February 19, 2020 Category: Hematology Authors: Schmidt AE, Vadivel K, Whitelegge J, Paul Bajaj S Tags: J Thromb Haemost Source Type: research
Study of energy transfer from Bi3+ to Tb3+ in Y2O3 phosphor and its application for W-LED
Publication date: Available online 17 February 2020Source: Journal of Alloys and CompoundsAuthor(s): D.R. TaikarAbstractY2O3 activated with different activators were prepared by co-precipitation method. The prepared phosphors were characterized by XRD, SEM and photoluminescence (PL) techniques. The Tb3+ doped Y2O3 phosphor shows characteristic green emission due to 5D4 to 7Fj transitions of Tb3+ ion. The Bi3+ doped Y2O3 phosphor shows PL emission in blue region due to the transition between excited 3P1 state and ground state 1S0 of Bi3+ ion. The multiple systems of Tb3+emission lines in Y2O3:Tb3+ and two types of excitatio...
Source: Journal of Alloys and Compounds - February 18, 2020 Category: Chemistry Source Type: research
Dopamine-related receptors, substance dependence, behavioral problems and personality among juvenile delinquents
In conclusion, the results underscore the role of the DRD4 polymorphism C_1611535 GG genotype for substance dependence, and suggest its associations with different self-reported phenotype characteristics.
Source: Personality and Individual Differences - February 18, 2020 Category: Psychiatry & Psychology Source Type: research
Effects of spirulina diet on the oogenesis of zebrafish: morphological analysis and immunohistochemical determination of the vitellogenin.
Abstract Morphological analysis and immunohistochemical determination of vitellogenin (Vtg) were carried out in zebrafish ovaries (Danio rerio). The goal was to determine the nutraceutical effect of Spirulina feed on ovarian maturation stages of adult zebrafish. After 30 d, in the stages of advanced maturation a prevalence of oocytes was found in the experimental group. Immunohistochemical investigations revealed a significant increase in Vtg, precursor of vitelline (Vn) in egg yolk, whose expression increased in the liver in relation to the stages of maturation. In the zebrafish liver, the expression of Vtg was...
Source: Natural Product Research - February 18, 2020 Category: Biochemistry Authors: Calabrò C, Bertuccio C, Gervasi T, Lauriano ER, Leonardi M, Cicero N, Cascio PL Tags: Nat Prod Res Source Type: research
CYP2C19 and CYP3A4 Activity and ADP-induced Platelet Reactivity in Prasugrel- or Ticagrelor-treated STEMI Patients: Monocentric Study in PRAGUE-18 Trial Participants.
Abstract We assessed the contribution of CYP2C19 and CYP3A4 metabolic activity to the ADP-induced platelet aggregation 1h and 24h after a loading dose of 60 mg prasugrel or 180 mg ticagrelor in patients with ST-elevations myocardial infarction (STEMI). Further, we assessed the contribution of CYP2C19 polymorphisms and medication to the CYP enzymatic activity.Patients with STEMI were randomly assigned to the treatment with prasugrel (n = 51) or ticagrelor (n = 46). Metabolic activity of CYP2C19 and CYP3A4 was assessed by the rate of 5-hydroxylation and sulfoxidation of lansoprazole. Further, patients we...
Source: Xenobiotica - February 17, 2020 Category: Research Authors: Máchal J, Hlinomaz O, Kostolanská K, Peš O, Máchalová A, Šplíchal Z, Moťovská Z, Juřica J Tags: Xenobiotica Source Type: research
Toads prey upon scorpions and are resistant to their venom: A biological and ecological approach to scorpionism.
Abstract In recent years, SE Brazil, the most populous region in the country with an estimated population of 88 million, has been experiencing an alarming increase in scorpions accidents (scorpionism), mainly caused by the yellow scorpion (Tityus serrulatus), or "escorpião amarelo" in Portuguese. This species is considered particularly dangerous to humans and can reproduce by parthenogenesis favouring rapid dispersal and colonization of new environments. Since the 1940s, owing to the growing danger represented by scorpionism, public control policies have been developed, including active search for scorpions, toge...
Source: Toxicon - February 17, 2020 Category: Toxicology Authors: Jared C, Alexandre C, Mailho-Fontana PL, Pimenta DC, Brodie ED, Antoniazzi MM Tags: Toxicon Source Type: research
The efficacy and safety of topical rapamycin/calcitriol for facial angiofibromas in patients with tuberous sclerosis complex: a prospective, double-blind randomized clinical trial.
CONCLUSIONS: This randomized clinical trial demonstrated that topical rapamycin-calcitriol combination therapy is an effective and safe regimen for TSC-related FAs. PMID: 32064596 [PubMed - as supplied by publisher]
Source: The British Journal of Dermatology - February 16, 2020 Category: Dermatology Authors: Chen PL, Hong JB, Shen LJ, Chen YT, Wang SJ, Liao YH Tags: Br J Dermatol Source Type: research
Intravenous administration of iPS-MSCSPIONs mobilized into CKD parenchyma and effectively preserved residual renal function in CKD rat.
This study traced intravenously administered induced pluripotent stem cell (iPSC)-derived mesenchymal stem cells (MSC) and assessed the impact of iPSC-MSC on preserving renal function in SD rat after 5/6 nephrectomy. The results of in vitro study showed that FeraTrack™Direct contrast particles (ie intracellular magnetic labelling) in the iPSC-MSC (ie iPS-MSCSPIONs ) were clearly identified by Prussian blue stain. Adult-male SD rats (n = 40) were categorized into group 1 (SC), group 2 [SC + iPS-MSCSPIONs (1.0 × 106 cells)/intravenous administration post-day-14 CKD procedure], group 3 (CKD), group 4 [CKD + iPS-MSCSPIO...
Source: J Cell Mol Med - February 15, 2020 Category: Molecular Biology Authors: Sheu JJ, Sung PH, Wallace CG, Yang CC, Chen KH, Shao PL, Chu YC, Huang CR, Chen YL, Ko SF, Lee MS, Yip HK Tags: J Cell Mol Med Source Type: research
Influence of an "Electroencephalogram-Based" Monitor Choice on the Delay Between the Predicted Propofol Effect-Site Concentration and the Measured Drug Effect.
CONCLUSIONS: There is a significant "Ceprop versus EEG measured drug effect" hysteresis. Not accounting for it leads to conflicting PD information and false high Ce50 for propofol in both monitors. Adding a lag term improved the PD model performance, improved the "pump-monitor" synchrony, and made the estimates of Ce50 for propofol more realistic and less monitor dependent. PMID: 32058447 [PubMed - as supplied by publisher]
Source: Anesthesia and Analgesia - February 13, 2020 Category: Anesthesiology Authors: Sahinovic MM, van den Berg JP, Colin PJ, Gambus PL, Jensen EW, Agustí M, Ferreiro T, Struys MMRF Tags: Anesth Analg Source Type: research
Brentuximab vedotin in the treatment of elderly Hodgkin lymphoma patients at first relapse or with primary refractory disease: a phase 2 study of FIL ONLUS.
PMID: 32054647 [PubMed - as supplied by publisher]
Source: Haematologica - February 13, 2020 Category: Hematology Authors: Stefoni V, Marangon M, Re A, Lleshi A, Bonfichi M, Pinto A, Bianchetti N, Pellegrini C, Argnani L, Zinzani PL Tags: Haematologica Source Type: research
Definitions of Nonverbal and Minimally Verbal in Research for Autism: A Systematic Review of the Literature.
Abstract This systematic review examined definitions of "nonverbal" or "minimally verbal" and assessment measures used to evaluate communication in intervention studies focusing on improving expressive verbal communication in children with autism spectrum disorder (ASD). We reviewed sample size, number of participants, participant age, and male/female representation. Our analysis yielded relatively few studies with non/minimally verbal children with ASD focusing on verbal expressive communication. Further, we found large inconsistencies in measures used, definitions of "nonverbal" and "minimally verbal", and ages ...
Source: Journal of Autism and Developmental Disorders - February 13, 2020 Category: Psychiatry Authors: Koegel LK, Bryan KM, Su PL, Vaidya M, Camarata S Tags: J Autism Dev Disord Source Type: research
Screening and surveillance of multiple solid tumours using plasma placental-like chondroitin sulfate A (pl-CSA).
Conclusion: These data indicate a direct link between plasma pl-CSA content and tumour presence, indicating that plasma pl-CSA may be a non-invasive biomarker with clinical applicability for the screening and surveillance of patients with multiple types of solid tumours. PMID: 32038099 [PubMed - in process]
Source: International Journal of Medical Sciences - February 12, 2020 Category: Biomedical Science Tags: Int J Med Sci Source Type: research
Visible-light photoredox-catalyzed dual C-C bond cleavage: synthesis of 2-cyanoalkylsulfonylated 3,4-dihydronaphthalenes through the insertion of sulfur dioxide.
Abstract An efficient novel visible-light photoredox-catalyzed dual carbon-carbon bond cleavage of methylenecyclopropanes and cycloketone oximes for the synthesis of 2-cyanoalkylsulfonated 3,4-dihydronaphthalenes through the insertion of sulfur dioxide is established. This dual cleavage of carbon-carbon bonds involves a radical pathway and goes through a sequence of iminyl radical formation, carbon-carbon bond cleavage, sulfur dioxide insertion, sulfonyl radical addition, another carbon-carbon bond cleavage, and intramolecular cyclization. PMID: 32048641 [PubMed - as supplied by publisher]
Source: Chemical Communications - February 12, 2020 Category: Chemistry Authors: Liu Y, Wang QL, Chen Z, Li H, Xiong BQ, Zhang PL, Tang KW Tags: Chem Commun (Camb) Source Type: research
Prevalence, characteristics and prognostic implications of type 2 diabetes in patients with myocardial infarction: PL-ACS Registry annual report 2018.
PMID: 32063598 [PubMed - as supplied by publisher]
Source: Polish Heart Journal - February 12, 2020 Category: Cardiology Authors: Niedziela JT, Hiczkiewicz J, Kleinrok A, Pączek P, Leszek P, Lelonek M, Rozentryt P, Parma Z, Witkowski A, Bartuś S, Zdrojewski T, Buszman P, Kaźmierczak J, Strojek K, Gąsior M Tags: Kardiol Pol Source Type: research
A Compact Quadrupole-Orbitrap Mass Spectrometer with FAIMS Interface Improves Proteome Coverage in Short LC Gradients.
Abstract State-of-the-art proteomics-grade mass spectrometers can measure peptide precursors and their fragments with ppm mass accuracy at sequencing speeds of tens of peptides per second with attomolar sensitivity. Here we describe a compact and robust quadrupole-orbitrap mass spectrometer equipped with a front-end High Field Asymmetric Waveform Ion Mobility Spectrometry (FAIMS) Interface. The performance of the Orbitrap Exploris 480 mass spectrometer is evaluated in data-dependent acquisition (DDA) and data-independent acquisition (DIA) modes in combination with FAIMS. We demonstrate that different compensation ...
Source: Molecular and Cellular Proteomics : MCP - February 12, 2020 Category: Molecular Biology Authors: Bekker-Jensen DB, Martinez-Val A, Steigerwald S, Rüther PL, Fort KL, Arrey TN, Harder A, Makarov AA, Olsen JV Tags: Mol Cell Proteomics Source Type: research
Treatment Outcome of Bacteremia Due to Non-Carbapenemase-producing Carbapenem-Resistant Klebsiella pneumoniae Bacteremia: Role of Carbapenem Combination Therapy.
Abstract PURPOSE: Infections caused by carbapenemase-producing Klebsiella pneumoniae are emerging causes of morbidity and mortality worldwide. Optimal treatment for non-carbapenemase-producing carbapenem-resistant K pneumoniae (nCP-CRKP) bacteremia remains undefined. The goal of this study was to assess the clinical outcome, predictors of mortality, and therapeutic strategy of carbapenems for nCP-CRKP bacteremia. METHODS: A retrospective study of monomicrobial bacteremia caused by nCP-CRKP, at a medical center between 2010 and 2015 was conducted. CRKP which was defined as a minimum inhibitory concentration (M...
Source: Clinical Therapeutics - February 12, 2020 Category: Drugs & Pharmacology Authors: Lee NY, Tsai CS, Syue LS, Chen PL, Li CW, Li MC, Ko WC Tags: Clin Ther Source Type: research
Synthesis and biological evaluation of novel pyrazolo3,4-bpyridines as cis-restricted combretastatin A-4 analogues.
Abstract Twenty-six novel pyrazolo[3,4-b]pyridine-bridged analogues of combretastatin A-4 possessing 3,4,5-trimethoxylphenyl groups, were synthesized and evaluated for their antiproliferative and tubulin polymerization inhibitory activities. Preliminary biological evaluation demonstrated that some of the target compounds displayed significant antiproliferative effectagainst four different cell lines including MCF-7, MDA-MB-231, HeLa and Kyse150. The most active analogue 6n was found to induce HeLa cells arrest in the G2/M phase in a dose-dependent manner. Molecular modeling studies indicated that derivative 6n mos...
Source: Bioorganic and Medicinal Chemistry Letters - February 11, 2020 Category: Chemistry Authors: Jian XE, Yang F, Jiang CS, You WW, Zhao PL Tags: Bioorg Med Chem Lett Source Type: research
A review of implantable pulsatile blood pumps: Engineering perspectives.
Abstract It has been reported that long-term use of continuous-flow mechanical circulatory support devices (CF-MCSDs) may induce complications associated with diminished pulsatility. Pulsatile-flow mechanical circulatory support devices (PF-MCSDs) have the potential of overcoming these shortcomings with the advance of technology. In order to promote in-depth understanding of PF-MCSD technology and thus encourage future mechanical circulatory support device innovations, engineering perspectives of PF-MCSD systems, including mechanical designs, drive mechanisms, working principles, and implantation strategies, are r...
Source: The International Journal of Artificial Organs - February 10, 2020 Category: Transplant Surgery Authors: Wu T, Khir AW, Kütting M, Du X, Lin H, Zhu Y, Hsu PL Tags: Int J Artif Organs Source Type: research
Imported Human Babesiosis, Singapore, 2018.
Abstract In 2018, Babesia microti infection was diagnosed for a 37-year-old man in Singapore who acquired the infection in the United States. This case highlights the recent rise of tickborne infections in the United States and the risk for their spread, because of increasing global interconnectivity, to regions where they are not endemic. PMID: 32023203 [PubMed - as supplied by publisher]
Source: Emerging Infectious Diseases - February 7, 2020 Category: Infectious Diseases Authors: Lim PL, Chavatte JM, Vasoo S, Yang J Tags: Emerg Infect Dis Source Type: research
Use of Patient Portals of Electronic Health Records Remains Low From 2014 to 2018: Results From a National Survey and Policy Implications.
CONCLUSION: The use of patient portals in the general public remains low and a significant digital divide persists, presenting a major challenge on meaningful use of electronic health record. We call for more effective interventions to address these gaps. Such interventions should target people of low socioeconomic status and focus on improving eHealth literacy and patients' confidence in data safety. PMID: 32030989 [PubMed - as supplied by publisher]
Source: American Journal of Health Promotion : AJHP - February 7, 2020 Category: International Medicine & Public Health Authors: Hong YA, Jiang S, Liu PL Tags: Am J Health Promot Source Type: research