检索结果-南通市图书馆

木通与蒲公英提取物对断奶仔兔肠道氧化应激的改善作用

在线全文

学校读者我要写书评

暂无评论

中国兽医学报 2024年第10期 2221-2233页

作者：张俊秋陈雨修子清 musa Mgeni 蒋小雨吕景智孙雅望西南大学动物科学技术学院西南大学动物医学院

选用35日龄、体质量(1.22±0.08) kg的伊拉兔120只，根据双因素设计随机地分为4组：C组(基础饲粮)、D组(基础饲粮+0.5%蒲公英提取物)、A组(基础饲粮+0.5%木通提取物)、DA组(基础饲粮+0.5%蒲公英提取物+0.5%木通提取物),其中，C组为对照... 详细信息

选用35日龄、体质量(1.22±0.08) kg的伊拉兔120只，根据双因素设计随机地分为4组：C组(基础饲粮)、D组(基础饲粮+0.5%蒲公英提取物)、A组(基础饲粮+0.5%木通提取物)、DA组(基础饲粮+0.5%蒲公英提取物+0.5%木通提取物),其中，C组为对照组，其余3组为试验组，每组10个重复。预饲期1周，试验期4周。试验结束后采集血清、肝脏组织、空肠和回肠黏膜样本，并测定各项指标。结果显示：(1)在试验期第1周，C组仔兔的平均日增重显著低于D组和A组(Phyde, MDA)的含量。(3)木通提取物显著提高了血清中谷胱甘肽过氧化物酶(gluta.hione peroxidase, GSh-Px)活性和总抗氧能力(total antioxidant capability, T-AOC)(Ph-Px活性(Ph样结合蛋白1(Kelch-like ECh-associated protein 1,Keap1)和NAD (P) h醌氧化还原酶1 (NAD(P)h:quinone oxidoreductase 1,NQO1)基因在空肠的表达量；木通和蒲公英提取物对回肠NQO1、血红素加氧酶1和超氧化物歧化酶2有显著互作效应(P<0.05),对Keap1有极显著互作效应(P<0.01);木通提取物显著降低NQO1基因在肝脏组织表达量(P<0.05)。结果表明，蒲公英和木通提取物能够减少体内ROS含量并缓解氧化损伤，并通过Nrf2-Keap1信号通路调节抗氧化基因表达和抗氧化物酶活性来维持肠道氧化还原稳态，缓解肠道氧化应激。

关键词：蒲公英木通断奶仔兔生产性能肠道氧化应激

EFFECT OF ThE COMPOSITION OF m-CRESOL/h_2O SOLVENT ON hYDRODYNAMIC PROPERTIES OF NYLON 6

在线全文

同方期刊数据库

学校读者我要写书评

暂无评论

Chinese Journal of Polymer Science 2006年第4期24卷 369-377页

作者： musa Kaleem Baloch Mohsan Nawaz Department of Chemistry

The intrinsic viscosity [η], huggins constant （Ku）, [η]0, α^3 and flow activation energy values of nylon 6 have been measured in wateηm-cresol （0/100-20/80） systems at different temperatures （20-60℃）. It has been found that the intrinsic viscosity, [η]0 and α^3 increase with the increase in water contents in m-cresol up to 15% and then decrease. They increase with the increase in temperature irrespective of solvent composition. It has been noted that the percent increase of α^3 is the highest at 60℃ and the lowest at 20℃ for a particular solvent system. The intrinsic viscosity data obey Arrhenius equation over the considered conditions. The activation energy and the Kh values decrease very sharply with the addition of water, giving a minimum value at 15% of water and then increase slowly. The variation of all the parameters has been explained in terms of variation in thermodynamic quality of solvent with the addition of water to m-cresol and change in temperature, resulting in the change of conformational and orientational properties of polymer molecules. This change of solvent quality also results in variation of selective sorption of solvent over the polymer, such as hydrogen bonding, etc.

关键词： Intrinsic viscosity huggins constant Thermodynamic quality of solvent Activation energy hydrogen bonding Conformation Selective sorption.

Incorporation of silica into the goethite structure: a microscopic and spectroscopic study

在线全文

学校读者我要写书评

暂无评论

Acta Geochimica 2018年第6期37卷 911-921页

作者： Abdullah musa Ali Eswaran Padmana.han hassan Baioumy Department of Geosciences Faculty of Geosciences and Petroleum Engineering Universiti Teknologi PETRONAS(UTP)

Quartz and iron(hydr)oxide are reactive surface phases that are often associated with one another in soils and sediments. Despite the several studies on the coating of quartz with iron oxides, the reactivity of dissolved species(Si) lea.hed from quartz with iron(hydr)oxides has received limited attention. In this study, goethite synthesized on quartz substrates were characterized using field emission scanning electron microscopy, X-ray diffraction(XRD), transmission electron microscopy, and Fouriertransform infrared(FT-IR) spectroscopy. The SEM characterization revealed that bundles of thin parallel aligned goethite rods were formed at p h [ 10, while large pseudohexagonal crystals of twinned goethite needles were synthesized at p h B 10 after dehydration and hydration in the alkaline media. TEM analysis showed expanded and distorted lattice spacing of the crystal structure of iron(hydr)oxide due to silica incorporation. The characterization showed that silica increased the crystallite size of the goethite and transformed its acicular texture to a larger,twinned needle structure. FT-IR and XRD analyses revealed band shifts in crystal bonds as well as new bond formations, which indicate the presence of changes in the chemical environment of Fe–O and Si–O bonds. Thus, the presence of sorbed silicates modifies the crystal and lattice structure of goethite.

关键词： Quartz Goethite Twinned goethite Microscopic characterization(FESEM and TEM) FT-IR spectroscopy

Effect of Nitrogen on Root Growth,Nitrogen Fixation and Agronomic Traits of Super high Yield Soybean Cultivar Liaodou 14 Under Drought Condition

在线全文

学校读者我要写书评

暂无评论

Effect of Nitrogen on Root Growth,Nitrogen Fixation and Agro...

作者： musa musa Suleiman 沈阳农业大学

学位级别：硕士

根瘤固定的氮素是大豆植株生长发育的重要氮素来源,植株的固氮能力会影响氮素吸收效率,从而影响产量。大豆又是需水较多的作物,干旱会给大豆生长发育造成很大影响。在干旱条件下,施用适量的氮肥,在一定程度上能保证大豆的正常生长和产... 详细信息

根瘤固定的氮素是大豆植株生长发育的重要氮素来源,植株的固氮能力会影响氮素吸收效率,从而影响产量。大豆又是需水较多的作物,干旱会给大豆生长发育造成很大影响。在干旱条件下,施用适量的氮肥,在一定程度上能保证大豆的正常生长和产量的形成。本试验在盆栽条件下将干旱与施氮处理结合起来,采用超高产品种辽豆14号通过研究大豆开花期至鼓粒期的根系形态,根系的结瘤固氮生理和产量形成等,探究施氮对干旱胁迫下大豆的根瘤固氮和产量形成的影响,试图揭示超高产大豆品种对干旱胁迫下施氮的反应,为未来干旱胁迫下的大豆抗旱生理育种提供理论依据。主要结果如下:1.干旱条件下辽豆14的根表面积、根体积和根直径均低于正常水分处理,根系长度长于正常水分处理。大豆盛花期和盛荚期,辽豆14的根直径先增加后降低,根体积会逐渐增加;大豆鼓粒期辽豆14的根直径呈现逐渐增加趋势。R1期追肥处理下,根体积会先增加后降低。说明辽豆14的根系在施用氮肥后其吸收利用水分和养分的能力更强。2.干旱条件下辽豆14的根瘤鲜重、根瘤数均会降低,N100施肥水平会促进辽豆14的根瘤生长,N150施肥水平下,辽豆14在R1期追肥处理下的根瘤鲜重有所增加,其余均会受到抑制。干旱会降低根瘤的固氮酶活性和豆血红蛋白含量,且随着施肥水平的提高会逐渐降低。鼓粒期辽豆14在干旱条件下不施肥处理的固氮酶活性降低了24.79%,施用底肥和R1期追肥处理均低于不施肥处理。本研究表明,豆血红蛋白含量变化和固氮酶活性变化具有一致性。说明干旱条件下,辽豆14的根瘤固氮会受到抑制,施氮后抑制增强。底肥N100和R1期追肥N100处理可以降低干旱对根瘤数的影响,不同生育时期的平均根瘤数分别为170.3个/株和156.8个/株,而不施肥的对照仅为101.5个/株。底肥N100、底肥N150和R1期追肥N100处理可以降低干旱对根瘤固氮酶活性的影响,不同生育时期的平均根瘤固氮酶活性分别为281.4、244.6、210.7 n mol Ch/mg/h,而不施肥的对照仅为186.5n mol Ch/mg/h。干旱会显著降低大豆的豆血红蛋白含量,底肥和R1期追肥会增大豆血红蛋白含量的下降幅度。底肥施氮各生育时期平均含量0.43mg/g Nodule,R1追氮为0.32 mg/g Nodule,不施氮的为0.54 mg/g Nodule。3.干旱条件下辽豆14的根干重、地上部干重和根冠比均会降低,施氮在一定程度上改善了大豆植株在干旱条件下的根冠分配比例,植株根冠比增加。4.干旱条件下辽豆14的结荚高度、株高、节数和分枝数均会降低。在干旱条件下,底肥施氮和R1追施氮肥均可以缓解干旱的减产效果,以R1追肥氮肥效果更好,特别是R1追施N150的效果最佳,两年平均单株粒重为26.51g,不施肥为15.94g。

关键词：大豆超高产干旱施氮生物固氮根系生长产量

Blast-induced ground vibration prediction in granite quarries:An application of gene expression programming,ANFIS,and sine cosine algorithm optimized ANN

同方学位论文库评论

在线全文

同方学位论文库

学校读者我要写书评

暂无评论

International Journal of Mining Science and Technology 2021年第2期31卷 265-277页

作者： Abiodun Ismail Lawal Sangki Kwon Olaide Sakiru hammed musa Adebayo Idris Department of Energy Resources Engineering Inha UniversityIncheon 22212Republic of Korea Department of Mining Engineering Federal University of TechnologyAkureNigeria Department of Physics Federal UniversityOye-EkitiNigeria Division of Mining and Geotechnical Engineering Department of CivilEnvironmental and Natural Resources EngineeringLuleåUniversity of Technology97187 LuleåSweden

Blasting of rocks has intrinsic environmental impacts such as ground vibration,which can interfere with the safety of lives and ***,accurate prediction of the environmental impacts of blasting is imperative as the empirical models are not accurate as evident in the ***,there is need to consider some robust predictive models for accurate prediction *** expression programming(GEP),adaptive neuro-fuzzy inference system(ANFIS),and sine cosine algorithm optimized artificial neural network(SCA-ANN)models are proposed for predicting the blast-initiated ground vibration in five granite *** input parameters into the models are the distance from the point of blasting to the point of measurement(D),the weight of charge per delay(W),rock density(q),and the Schmidt rebound hardness(SRh)value while peak particle velocity(PPV)is the targeted output.100 datasets were used in developing the proposed *** performance of the proposed models was examined using the coefficient of determination(R2)and error *** R2 values obtained for the GEP,ANFIS,and SCA-ANN models are 0.989,0.997,and 0.999,respectively,while their errors are close to *** proposed models are compared with an empirical model and are found to outperform the empirical model.

关键词： Artificial intelligence Blasting Rock density Comminution Environmental impacts Sensitivity analysis

a.hrodisiac activity of aqueous extract of Anthonotha macrophylla *** in female Wistar rats

在线全文

学校读者我要写书评

暂无评论

Journal of Integrative Medicine 2016年第5期14卷 400-408页

作者： musa Toyin Yakubu Abdulquadri Funmbi Olutoye Phytomedicine Toxicology and Reproductive Biochemistry Research Laboratory Department of Biochemistry University of Ilorin

OBJECTIVE： This study investigated the a.hrodisiac activity of aqueous extract of Anthonotha macrophylla leaves （AEAML） in female Wistar rats. METhODS： Thirty female rats were assigned into five groups of six animals ea.h, such that rats in groups A, B, C, D and E received orally 1 mL of distilled water only, 5.7 mg/kg body weight （BW） of Exus Ginseng （a polyherbal formulation）, 25, 50 and 100 mg/kg BW of AEAML, respectively. After 1 h of treatment, female sexual behaviour parameters were monitored for 30 min. Luteinizing hormone （Lh）, follicle stimulating hormone （FSh）, estradiol （E） and testosterone were also determined using standard methods. RESULTS： Six secondary metabolites were detected in AEAML with alkaloids （13.00 mg/L） being the highest. AEAML at 25 and 50 mg/kg BW significantly （P〈0.05） increased the darting frequency, hopping frequency, lordosis frequency, anogenital grooming, genital grooming and licking behaviour, whereas the darting latency, hopping latency and lordosis latency decreased （P〈0.05） in a manner comparable with Exus Ginseng. The 25 and 50 mg/kg BW of AEAML increased （P〈0.05） the serum concentrations of FSh, Lh and E, like Exus Ginseng, whereas testosterone content was not altered （P〉0.05）. The 100 mg/kg BW of AEAML did not alter （P〉0.05） the sexual behaviour parameters, serum FSh, Lh and E contents, whereas testosterone content increased significantly. The ovarian histology of the animals treated with Exus Ginseng, AEAML at 25 and 50 mg/kg BW revealed developing and ruptured follicles with numerous corpora lutea in the stroma, whereas the 100 mg/kg BW of AEAML produced fewer follicles and corpora lutea. CONCLUSION： The enhanced proceptive, receptive and orientation components of the female sexual behaviour by the 25 and 50 mg/kg BW of AEAML confers sexual invigorating potential on the plant. This study thus justifies the folkloric claim of the plant as a female a.hrodisiac.

关键词： plant extracts Anthonotha macrophylla leguminosae a.hrodisiacs estradiol sexualbehaviour

Quartz dissolution in a single phase-high ph Berea sandstone via alkaline injection

在线全文

学校读者我要写书评

暂无评论

Energy Geoscience 2021年第3期2卷 181-188页

作者： Abdullah musa Ali Mohammed Yerima Kwaya Abubakar Mijinyawa Department of Geology Bayero University Kano(BUK)KanoNigeria

A common assertion is that alkaline solution aids oil mobilization by generating in situ soap,or by lowering interfacial tension(IFT)to ultra-low values in synergy with *** study takes a different approa.h that involves the alkaline dissolution of detrital quartz grains of sandstone reservoirs to create pa.hways for oil migration and *** dissolution via alkaline injection will result in changes in permeability and *** study performed high-ph core flooding on Berea sandstones using core displacement *** molybdate spectrophotometry was applied to measure the amount of dissolved *** and confining pressure variations were also *** molar concentration of Na.h varied at 0.5 M and 1.0 *** results show higher initial silica dissolution for 0.5 M Na.h(˃200mg/L)compared to 1.0 M Na.h(20 mg/L),which can be attributed to the presence of pre-existing dissolved silica and precipitates in the system prior to the first injection ***,a steady quartz dissolution rate of 0.4 mg/L/hr for 20 h was only a.hieved at 1.0 ***,an abrupt drop in quartz dissolution to below 0 mg/L was recorded for 0.5 M Na.h after 3 h of *** higher molar concentration of injected alkaline solution,both confining and inlet pressures increased from 8 and 5 bars to 12 and 11 bars as a result of the increased secondary phase of(hydr)oxides or precipitates in the ***,it can be inferred that the effect of alkaline solution on quartz dissolution is strongly dependent on molar concentration.

关键词： Alkaline injection Core flooding Dissolved silica Quartz Petroleum recovery

Adsorption isotherm mechanism of amino organic compounds as mild steel corrosion inhibitors by electrochemical measurement method

维普期刊数据库评论

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Journal of Central South University 2010年第1期17卷 34-39页

作者： A.Y.musa A.a.h.Ka.hUM A.B.MOhAMAD M.S.TAKRIFF A.R.DAUD S.K.KAMARUDIN School of Chemical and Process Engineering Universiti Kebangsaan Malaysia School of Applied Physics Universiti Kebangs aan Malaysia

The inhibition ability of 4-amino-5-phenyl-4h-1, 2, 4-trizole-3-thiol （APTT）, ethylenediaminetetra-acetic acid （EDTA） and thiourea （TU） for mild steel corrosion in 1.0 moFL hC1 solution at 30 ℃ was investigated. Tafel polarization and electrochemical impedance spectroscopy （EIS） were used to investigate the influence of these organic compounds as corrosion inhibitors of mild steel in 1.0 mol/L hC1 solution at 30 ℃. The inhibition mechanism was discussed in terms of Langrnuir isotherm model. Results obtained from Tafel polarization and impedance measurements are in a good agreement. The inhibition efficiency increases with the increase of the inhibitor concentration. The adsorption of the inhibitors on the mild steel surface follows Langmuir adsorption isotherm and the free energy of adsorption AGads indicates that the adsorption of APTT, EDTA, and TU molecules is a spontaneous process and a typical chemisorption.

关键词： corrosion inhibitor Langmuir adsorption isotherm mild steel

Insight into molecular mechanisms underlying hepatic dysfunction in severe COVID-19 patients using systems biology

在线全文

学校读者我要写书评

暂无评论

World Journal of Gastroenterology 2021年第21期27卷 2850-2870页

作者： Sarah musa hammoudeh Arabella musa hammoudeh Poorna Manasa Bhamidimarri Bassam Mahboub Rabih halwani Qutayba.hamid Mohamed Rahmani Rifat hamoudi Sharjah Institute for Medical Research College of MedicineUniversity of SharjahSharjah 27272United Arab Emirates College of Medicine University of SharjahSharjah 27272United Arab Emirates General Surgery Department Tawam HospitalSEHAAl-Ain 15258United Arab Emirates Ra.hid hospital 315 Umm Hurair SecondDubai Health AuthorityDubai 4545United Arab Emirates Meakins-Christie Laboratories McGill UniversityQuebec H4A 3J1MontrealCanada Division of Surgery and Interventional Science University College LondonLondon W1W 7TYUnited Kingdom

BACKGROUND The coronavirus disease 2019(COVID-19),a pandemic contributing to more than 105 million cases and more than 2.3 million dea.hs worldwide,was described to be frequently accompanied by extrapulmonary manifestations,including liver *** dysfunction and elevated liver enzymes were observed in about 53%of COVID-19 *** To gain insight into transcriptional abnormalities in liver tissue of severe COVID-19 patients that may result in liver *** The transcriptome of liver autopsy samples from severe COVID-19 patients against those of non-COVID donors was *** expressed genes were identified from normalized RNA-seq data and analyzed for the enrichment of functional clusters and *** differentially expressed genes were then compared against the genetic signatures of liver diseases including cirrhosis,fibrosis,non-alcoholic fatty liver disease(NAFLD),and hepatitis A/B/*** expression of some differentially expressed genes was assessed in the blood samples of severe COVID-19 patients with liver dysfunction using *** Analysis of the differential transcriptome of the liver tissue of severe COVID-19 patients revealed a significant upregulation of transcripts implicated in tissue remodeling including G-coupled protein receptors family genes,DNAJB1,IGF2,EGFR,and ***,the differential transcriptome of severe COVID-19 liver tissues substantially overlapped with the disease signature of liver diseases characterized with pa.hological tissue remodeling(liver cirrhosis,Fibrosis,NAFLD,and hepatitis A/B/C).Moreover,we observed a significant suppression of transcripts implicated in metabolic pa.hways as well as mitochondrial function,including cytochrome P450 family members,ACAD11,CIDEB,GNMT,and ***,drug and xenobiotics metabolism pa.hways are significantly suppressed suggesting a decrease in liver detoxification *** correspondence with the RNA-seq data analysis,we observ

关键词： COVID-19 hepatic dysfunction Tissue remodeling Metabolic pa.hways Drug metabolism hepatic detoxification