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International Journal of Coal Science & Technology 2021年第6期8卷 1447-1460页

作者： Marian Wiatowski Krzysztof Kapusta Jacek Nowak Marcin Szyja wioleta basa Główny Instytut Górnictwa(Central Mining Institute) Plac Gwarków 140-166 KatowicePoland Politechnika Slaska Katedra Geologii Stosowanej(Institute of Applied GeologySilesian Technical University)ul.Akademicka 2AGliwicePoland

A 72-h ex situ hard coal gasification test in one large block of coal was carried *** gasifying agent was oxygen with a constant flow rate of 4.5 m^(3)/*** surroundings of coal were simulated with wet sand with 11%moisture content.A 2-cm interlayer of siderite was placed in the horizontal cut of the coal *** a result of this process,gas with an average flow rate of 12.46 m^(3)/h was *** direct influence of siderite on the gasification process was observed;however,measurements of CO_(2)content in the siderite interlayer before and after the process allow to determine the location of high-temperature zones in the *** greatest influence on the efficiency of the gasification process was exerted by water contained in wet *** the high temperature that prevailed in the reactor,this water evaporated and reacted with the incandescent coal,producing hydrogen and carbon *** reaction contributes to the relatively high calorific value of the resulting process gas,averaging 9.41 MJ/kmol,and to the high energy efficiency of the whole gasification process,which amounts to approximately 70%.

关键词： Underground coal gasification UCG Siderite interlayer Water Ex situ Hydrogen

Nanocomposite egg shell powder with in situ generated silver nanoparticles using inherent collagen as reducing agent

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Journal of Bioresources and Bioproducts 2020年第2期5卷 101-107页

作者： Krittirash Yorseng Suchart Siengchin basa Ashok Anumakonda Varada Rajulu Department of Mechanical and Process Engineering The Sirindhorn International Thai-German Graduate School of Engineering(TGGS)King Mongkut’s University of Technology North BangkokBangkok 10800Thailand Department of Physics University College of EngineeringOsmania UniversityHyderabad 500007India International Research Centre Kalasalingam UniversityKrishnan Kovil 626126India Natural Composite Research Group King Mongkut’s University of Technology North BangkokBangkok 10800Thailand

Silver nanoparticles(AgNPs)were in situ generated in poultry hen egg shell powder(ESP)by one step thermal assisted method using the inherently present collagen as a reducing *** nanocomposite egg shell powder(NCESP)with in situ generated silver nanoparticles was charac-terized by scanning electron microscopy(SEM),Fourier transform infrared(FT-IR)spectroscopy,X-ray diffraction(XRD),thermogravimetric analysis(TGA)and antibacterial *** prepared NCESP had the spherical AgNPs in the size range of 50-120 nm with most of them from 81 nm to 90 ***,the average size of the AgNPs generated in the NCESP was 88 *** X-ray analysis indicated the presence of both AgNPs and AgO nanoparticles(AgONPs)in the *** possible mechanism of generation of AgNPs and AgONPs in the NCESP was also *** thermal stability of the NCESP was found to be higher than that of the *** NCESP ex-hibited excellent antibacterial activity against both the Gram negative and positive *** NCESP made from poultry waste ESP can be utilized as a low-cost antibacterial cleaning powder for house ware and also as low-cost antibacterial filler in polymer matrices to make antibacterial hybrid nanocomposites.

关键词： Nanocomposite In situ generation Silver nanoparticle Thermal stability Antibacterial activity

Supercritical carbon dioxide extraction of Triognella foenum graecum Linn seeds:Determination of bioactive compounds and pharmacological analysis

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Asian Pacific Journal of Tropical Biomedicine 2017年第12期7卷 1085-1091页

作者： Ola basa’ar Samreen Fatema Ali Alrabie Mohammed Mohsin Mazahar Farooqui Department of Chemistry Hodeidah University Post Graduate & Research Center Maulana Azad College Dr.Rafiq Zakaria College for women

Objective: To investigate the effect of temperature and pressure on supercritical CO_2 extraction of Triognella foenum graecum Linn seeds, to determine the optimal condition which leads to highest percentage of the accumulative yield and revealing the chemical composition of supercritical CO_2 ***: Temperatures in the range of 40–60C and pressures in the range of 10–25 MPa were used. FTIR and GC–MS analysis were used to detect the bioactive compounds present in the extract. The broth dilution method and slope method were used to evaluate the anti-microbial and anti-tuberculosis activities and the in vitro anti-malarial assay was carried out according to the micro assay protocol of Rieckmann and his ***: The temperature was more affected than the pressure on the extraction performance and the highest yield of the extract(3.111%) was attained at 60C and 10 *** and GC–MS showed that the chemical composition of the extract included conjugated linoleic acid methyl ester as the major active principle(with concentration of72.28%), followed by saturated fatty acid methyl esters(16.03%), steroids(8.09%) and organic siloxane compound(3.61%). The extract showed moderate anti-bacterial activity with MIC values 100, 250, 125 mg/m L towards Escherichia coli, Staphylococcus aureus and Streptococcus pyogenus respectively. It exhibited high inhibition effect towards the fungi Candida albican with MFC value(250 mg/m L). The extract had low antituberculosis activity with MIC value(100 mg/m L) and comparable MIC value(0.29 mg/m L) towards Plasmodium ***: Supercritical CO_2 extraction as alternate and green technology is performed successfully to extract the bioactive compounds from the seeds of T. foenum graecum Linn and it is concluded that this extract can be used as an alternate source of synthetic anti-biotic drugs.

关键词： Anti-bacterial Anti-fungal Anti-malarial Anti-tuberculosis Sc–CO2 extraction Triognella foenum graecum Linn

Purine nucleotides and their metabolites in patients with type 1 and 2 diabetes mellitus

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Journal of Biomedical Science and Engineering 2014年第1期7卷 38-44页

作者： wioleta Dudzinska Department of Physiology Faculty of Biology Szczecin University Szczecin Poland

We measured the erythrocyte levels of principal nucleotides (ATP, ADP, AMP, GTP, GDP, GMP, IMP), nucleosides (Ado, Guo, Ino) and Hyp with HPLC. Purine concentrations were determined in the erythrocytes of 36 type 1 and 40 type 2 diabetic patients. The increased dephosphorylation of adenine and guanine nucleotides, indicated by increased Ado, Ino, Guo and Hyp concentrations as the products of purine nucleotide degradation, suggests serious energy metabolism disruptions in diabetes. An increase in AMP, GMP, IMP concentrations, as well as a decrease in AEC and GEC values, points to significant alterations in erythrocyte purine nucleotide concentration.

关键词： Purine Nucleotides Nucleosides Purine Bases Diabetes

Carbon coating of air-sensitive insulating transition metal fluorides:An example study on α-Li3FeF6 high-performance cathode for lithium ion batteries

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Journal of Materials Science & Technology 2020年第20期52卷 107-115页

作者： Anna basa Sławomir Wojtulewski Beata Kalska-Szostko Maciej Perkowski Elena Gonzalo Olga Chernyayeva Alois Kuhn Flaviano García-Alvarado Institute of Chemistry University of Bialystokul.K.Ciolkowskiego 1K15-245 BialystokPoland Departamento de Química y Bioquímica Facultad de FarmaciaUniversidad CEU San Pablo28668 Boadilla del MonteMadridSpain Polish Institute of Physical Chemistry Kasprzaka St.44/5201-224 WarsawPoland CIC Energigune Parque Tecnologico de Alava01510 MinanoAlavaSpain

Li_(3)FeF_(6)has been the focus of research of fluorine-based cathode materials for lithium-ion *** of the low electronic conductivity of Li3 FeF6,the decrease of particle size,by an energyconsuming long-time ball milling process with carbon,is necessary to achieve a high electrochemical *** most successful method to enhance electrochemical activity,carbon coating,seemed to be impracticable,so far,for sensitive fluorides like Li3 *** this work,carbon coating on Li3 FeF6 particles has been successfully achieved for the first time,while avoiding both extended hydrolysis and Fe(Ⅲ)-Fe(Ⅱ)*** heat treatment and atmosphere,yielding the maximal transformation of organic carbon to both graphitised and disordered carbon,has been *** coating,with a thickness of approximately 2.5 nm,has been achieved by controlled thermal decomposition of glucose,under air,at 300℃.Raman and X-ray photoelectron spectroscopy(XPS)experiments have proved the existence of carbon and Fe2O3 on the surface of Li3FeF6 *** spectroscopy indicates the presence of organic residues from glucose *** to further reduce the orga nic carbon content results in a decrease of the amorphous carbon coating *** carbon-coated Li3 FeF6 nanoparticles deliver 122 mA h g^(-1)(85%of theoretical capacity)significantly higher than that of a noncoated sample(58 mA h g^(-1)).Even more,a significant beneficial effect of carbon coating on both capacity retention and coulombic efficiency is observed.

关键词： Lithium iron fluoride Hydrolysable fluoride Lithium battery Cathode Carbon coating

Dietary and socio-economic factors in relation to Helicobacter pylori re-infection

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World Journal of Gastroenterology 2009年第9期15卷 1119-1125页

作者： Mirosaw Jarosz Ewa Rychlik Magdalena Siuba wioleta Respondek Magorzata Ryzko-Skiba Iwona Sajór Sylwia Gugaa Tomasz Bazejczyk Janusz Ciok Department of Dietetics and Nutrition in Hospitals with Clinic of Metabolic Diseases and Gastroenterology National Food and Nutrition Institute02-903 WarsawPoland

AIM:To examine if dietary and socio-economic factors contribute to Helicobacter pylori(H pylori)re-infection. METHODS:The population of patients consisted of subjects in whom H pylori infection had been successfully treated in the *** were divided into two groups:Ⅰ-examined group(111 persons with H pylori re-infection)andⅡ-control group(175 persons who had not been re-infected).The respondents were interviewed retrospectively on their dietary habits and socio-economic factors. RESULTS:A statistically significant lower frequency of fermented dairy products(P<0.0001),vegetables (P=0.02),and fruit(P=0.008)consumption was noted among patients with H pylori re-infection as compared to those who had not been re-infected. CONCLUSION:High dietary intake of probiotic bacteria,mainly Lactobacillus,and antioxidants,mainly vitamin C(contained in fruit and vegetables),might decrease the risk of H pylori re-infection.

关键词： Nutrition Probiotics Helicobacter pylori re-infection Vitamin C Lifestyle factors

Late-time photometry of two nearby type II-P supernovae: 2004dj and 2004et

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Research in Astronomy and Astrophysics 2009年第7期9卷 783-790页

作者： Tian-Meng Zhang Xiao-Feng Wang Xu Zhou Jun Ma Zhao-Ji Jiang Jiang-Hua Wu Zhen-Yu Wu Stephane basa NationalAstronomicalObservatories Chinese Academy of Sciences Beijing 100012 China Observatoire Astronomique de Marseille-Provence 38 rue Fric Joliot-Curie 13388 Marseille Cedex 13 France Physics Department and Tsinghua Center for Astrophysics （THCA） Tsinghua University Beijing 100084 China Graduate University of Chinese Academy of Sciences Beijing 100049 China Department of Astronomy University of California Berkeley CA 94720-3411 USA

We present late-time photometry for two bright type II-P supernovae （SNe） 2004dj and 2004et, extending over 400 d after the explosion, which are measured with a set of intermediate-band filters that have the advantage of tracing the strength variations of some spectral features. Although these two SNe II-P exhibit similar photometric evolution at earlier times, they diverge during the nebular phase. SN 2004dj shows a slow late-time decline rate with - 0.7 ±0.1 mag （100d）^-1 during the period ranging from t ≈ 200 - 300 d after the explosion, while SN 2004et shows a much faster decline rate at a comparable phase, e.g., 1.3 ± 0.1 mag （100d）^-1. The steeper decay rate seen in SN 2004et is likely due to dust formation in the explosion ejecta. Based on intermediate-band photometry, we derived the evolution of the feature lines [e.g., Hα] of SNe 2004dj and 2004et which are similar in flux at comparable phases but perhaps with significantly different decay rates. The origin of the observed variations in the continuum and the feature lines is briefly discussed.

关键词： supernovae general - supernovae: individual (SN 2004dj SN 2004et) -techniques: photometric

Genetic Screening of Halothane Gene on Selected Philippine Native Pig Herds

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Open Journal of Genetics 2023年第3期13卷 105-113页

作者： Sherwin Dapiawen Matias Maureen basa Gajeton Ester Battad Flores Animal Breeding and Genomics Section Philippine Carabao Center National Headquarters and Genepool Science City of Munoz Nueva Ecija Philippines

The establishment of nucleus herds (NHs) of Native Pigs (NPs) at various R&D stations in the Philippines is currently being undertaken for food security and genetic conservation advocacy. Marker-assisted selection (MAS) is being utilized to identify individuals carrying favorable alleles of genes associated with production traits and screen out genetic defects (GD) for breeding purposes. Porcine Stress Syndrome (PSS) caused by a mutation in Halothane (HAL) gene is a GD frequently found in commercial breeds that when expressed, causes pale, soft, exudative (PSE) meat. PSE is inferior quality meat undesirable in the market causing economic losses to the swine industry. Thus, this study was conducted to screen the HAL gene through mutagenically separated-polymerase chain reaction (MSPCR) in selected NP herds and assessed its repeatability in local breeds. Results showed that out of 577 screened individuals, 543 (94.11%) were normal (NN), 0 (0%) were homozygous mutant (nn) and 34 (5.89%) were heterozygous carriers (Nn). Therefore, the optimized PSS screening protocol using MSPCR is also applicable to local breeds. As such, the availability of genetic tests for PSS could be useful in improving the Philippine NPs breeding selection and inhibiting or eliminating PSS mutant incidence within its nucleus herd.

关键词： Halothane Gene Porcine Stress Syndrome Native Pig

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担心网络攻击？AIG推出相应保单

商业周刊（中文版） 2015年第17期 54-55页

作者： Sonali basa 孟冬雪

7月8日，也就是美国联合航空公司（United Airlines）所有国内航班因网络故障而中断服务的同一天，纽约证券交易所出现了3小时的停运，这让所有美国人想到了同一件事：网络攻击。

关键词：网络攻击 AIG 美国联合航空公司纽约证券交易所保单网络故障美国人同一

VprBP mitigates TGF-β and Activin signaling by promoting Smurf1-mediated type Ⅰ receptor degradation

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Journal of Molecular Cell Biology 2020年第2期12卷 138-151页

作者： Yihao Li Chao Cui Feng Xie Szymon Kietbasa Hailiang Mei Maarten van Dinther Hans van Dam Andreas Bauer Long Zhang Peterten Dijke Department of Cell and Chemical Biology and Oncode Institute Leiden University Medical Center2300RC LeidenThe Netherlands MOE Laboratory of Biosystems Homeostasis and Protection and Innovation Center for Cell Signaling Network Life Sciences InstituteZhejiang UniversityHangzhou 310058China Department of Human Genetics Leiden Genome Technology CentreLeiden University Medical Center2300RC LeidenThe Netherlands Sequence Analysis Support Core Leiden University Medical Center2300RC LeidenThe Netherlands Novartis Institutes for BioMedical Research Inc.Novartis CampusForum 2.5.01.30CH-4056BaselSwitzerland

The transforming growth factor-β(TGF-β)family controls embryogenesis,stem cell differentiation,and tissue ***,how post-translation modifications contribute to fine-tuning of TGF-βfamily signaling responses is not well ***(I)-Smads can antagonize TGF-β/Smad signaling by recruiting Smurf E3 ubiquitin ligases to target the active TGF-βreceptor for proteasomal degradation.A proteomic interaction screen identified Vpr binding protein(VprBP)as novel binding partner of ***-expression studies revealed that VprBP negatively controls Smad2 phosphorylation,Smad2–Smad4 interaction,as well as TGF-βtarget gene *** was found to promote Smad7–Smurf1–TβRI complex formation and induce proteasomal degradation of TGF-βtype I receptor(TβRI).Moreover,VprBP appears to stabilize Smurf1 by suppressing Smurf1 *** multiple adult and mouse embryonic stem cells,depletion of VprBP promotes TGF-βor Activin-induced *** the mouse embryo VprBP expression negatively correlates with mesoderm marker expression,and VprBP attenuated mesoderm induction during zebrafish *** findings thereby uncover a novel regulatory mechanism by which Smurf1 controls the TGF-βand Activin cascade and identify VprBP as a critical determinant of embryonic mesoderm induction.

关键词： Smurfl TGF-βtype I receptor ubiquitination Activin mesoderm induction