Rafidain journal of science最新文献_第8页

Production of Lavender (Lavandula Angustifolia) Plants from Somatic Embryos Developed from its Seedlings Leaf Callus 薰衣草(Lavandula Angustifolia)幼苗叶片愈伤组织体细胞胚培育植株的研究

Rafidain journal of science Pub Date : 2022-12-01 DOI: 10.33899/rjs.2022.176073

Azza Al-Tai, A. Mohammed

{"title":"Production of Lavender (Lavandula Angustifolia) Plants from Somatic Embryos Developed from its Seedlings Leaf Callus","authors":"Azza Al-Tai, A. Mohammed","doi":"10.33899/rjs.2022.176073","DOIUrl":"https://doi.org/10.33899/rjs.2022.176073","url":null,"abstract":"The current study succeeded in producing the lavender ( Lavandula angustifolia ) plant from somatic embryos induced by the leaves callus of its seedlings, The results of soaking its dormant seeds in a solution of gibberellic acid at concentrations (0, 0.1, 0.25, 0.5, 1.0) gm l -1 for 24 hours showed the superiority of the concentration 0.5 g L -1 in stimulation the germination rate that reached 75% after 6 days comparing with other treatments and control that had 20% germination after 13 days. This study was able to initiated callus from seedling leaves when were placed on MS solid medium supplemented with by added 3.0 mg L -1 NAA and 10 mg L -1 BA after 20 days, Initiated callus was characterized by its yellowish-green color and friable texture, and when its masses were removed and placed on the same media, it produced well-growth cultures that were perpetuated every 15 days. After the second sub-culturing, the first stages of somatic embryos appeared, the spherical stage, which later developed into the heart,then torpedo and cotyledon stages and produced when placed individually on MSO medium, Intact lavender plants after 30 days were characterized by their good growth and density of leaves.","PeriodicalId":20803,"journal":{"name":"Rafidain journal of science","volume":"38 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2022-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"75322185","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 1

Effect of Three Different Dielectric Substrates on the Performance of Rectangular Microstrip Antenna Designed for 2.4 GHz using CST 3种不同介质基板对CST设计2.4 GHz矩形微带天线性能的影响

Rafidain journal of science Pub Date : 2022-09-01 DOI: 10.33899/rjs.2022.175392

L. A. Al Taan, Mohammed Salim Mohammed Wared Ado

{"title":"Effect of Three Different Dielectric Substrates on the Performance of Rectangular Microstrip Antenna Designed for 2.4 GHz using CST","authors":"L. A. Al Taan, Mohammed Salim Mohammed Wared Ado","doi":"10.33899/rjs.2022.175392","DOIUrl":"https://doi.org/10.33899/rjs.2022.175392","url":null,"abstract":"This paper presents a design of a low profile inset feed microstrip rectangular antenna working at 2.4 GHz to support application in industrial, scientific, and medical sectors. The design of the antenna is achieved by using three different substrates with dielectric constants of 2.2, 3.6, and 4.3, each with variable substrate thicknesses of 0.6, 1.5, 1.9mm in order to know the effect of substrate properties on the antenna performance such as gain, efficiency, return loss, and frequency bandwidth. The dimensions and performances of the designed antenna are optimized by using Computer Simulation Technology (CST) software hence a comparison has been performed among previous the antenna performances. The practical results for the antenna with the substrate of (dielectric constant of 4.3) and (thickness of 1.5mm) show that the return loss is (-33) dB which close to the simulation value, but there is a small difference (about ~30MHz) in the Impedance bandwidth. However, all other results were close. loss being decreased. Also, the results for directivity and efficiency were very close. The practical results show that the return loss (-33) dB is close to the simulation value, but there is a small difference (about ~30MHz) in the Impedance bandwidth. However, all other results were close.","PeriodicalId":20803,"journal":{"name":"Rafidain journal of science","volume":"17 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2022-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"81895537","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Statistical Analysis of the Monthly Activity of the Solar Flare 太阳耀斑月活动的统计分析

Rafidain journal of science Pub Date : 2022-09-01 DOI: 10.33899/rjs.2022.175396

Imad Al-Ibrahimi

引用次数: 0

Synthesis of some New Derivatives of Triazole using Ortho-Carboxybenzaldehyde as a Synthone 以邻羧基苯甲醛为合酮合成新三唑衍生物

Rafidain journal of science Pub Date : 2022-09-01 DOI: 10.33899/rjs.2022.175388

Maysaa Al-Mala Khder, moayed noori

{"title":"Synthesis of some New Derivatives of Triazole using Ortho-Carboxybenzaldehyde as a Synthone","authors":"Maysaa Al-Mala Khder, moayed noori","doi":"10.33899/rjs.2022.175388","DOIUrl":"https://doi.org/10.33899/rjs.2022.175388","url":null,"abstract":"In this work, the 1,2,4-triazole ring was prepared by introducing the starting material ortho-carboxybenzaldehyde (1) in the usual esterification reaction, in ethanol as a solvent and in the presence of concentrated sulfuric acid to give ethyl-2-formylbenzoate (2), then introducing the resulting ester in a condensation reaction with thiosemberazide in the presence of ethanol as a solvent to afforded 2-(2-formylbenzoyl)hydrazine-1-carbothioamide (3), which on cyclisation using a solution of sodium hydroxide to obtain the 1,2,4-triazole compound (4), which on treatment with different primary aromatic amines to obtain Schiff bases (5a-e) the prepared Schiff bases were introduced into a reaction with chloroacetyl chloride in the presence of triethylamine as an auxiliary base for the reaction to prepare the tetracyclic azitidinone compounds (beta-lactams) (6a-e) along with the triazole ring in the same compound. Finally, these prepared compounds were characterized by physical and spectroscopic measurements such as melting point, thin layer chromatography (m.p., TLC) infrared spectroscopic measurements FT-IR, and nuclear magnetic resonance spectra of some compounds 1 H-NMR .","PeriodicalId":20803,"journal":{"name":"Rafidain journal of science","volume":"27 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2022-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"76762825","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Isolation and Identification of Candida dubliniensis in Patient with Cervical-Vulvovaginal Candidiasis in Erbil City 埃尔比勒市宫颈-外阴阴道假丝酵母菌的分离鉴定

Rafidain journal of science Pub Date : 2022-09-01 DOI: 10.33899/rjs.2022.175386

N. Abdulla, Hero M. Ismael

{"title":"Isolation and Identification of Candida dubliniensis in Patient with Cervical-Vulvovaginal Candidiasis in Erbil City","authors":"N. Abdulla, Hero M. Ismael","doi":"10.33899/rjs.2022.175386","DOIUrl":"https://doi.org/10.33899/rjs.2022.175386","url":null,"abstract":"Vulvovaginal Candidiasis (VVC) is a fungal infection caused by Candida spp. of the genital mucosa that is still a health concern for women. This is a first-of-its-kind investigation on the isolation of Candida dubliniensis , from cervical-vulvovaginal patients in Erbil hospitals. The study was carried out for isolation and identification which performed by using phenotypic and molecular approaches. A total of one hundred samples of vaginal swabs (Copan transport swabs dry (in a cover)), were taken from patients with cervical vulvovaginal candidiasis in order to test for the presence of Candida species. According to macroscopic and microscopic examination, Candida spp. was discovered in 60 of the 100 samples (60%). On CHROM agar medium, eleven non-duplicated C. dubliniensis were identified depending on color of colony (dark green colonies-blue colony). Then the species were confirmed using API 20C assay. Finally, a multiplex PCR technique was performed depending on two types of primers, which are universal and specific for identifying C. dubliniensis and the results of the CHROM agar and API 20C assays were identical with molecular method.","PeriodicalId":20803,"journal":{"name":"Rafidain journal of science","volume":"47 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2022-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"85193019","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

The Role of Sulfa Drugs in our Life 磺胺类药物在我们生活中的作用

Rafidain journal of science Pub Date : 2022-09-01 DOI: 10.33899/rjs.2022.175395

Salim J. Mohammed, A. Al-hadedi, Salih A. Abood

引用次数: 1

A Simulated Study of 65 nm CMOS 2GHz Front-End Preamplifier Circuit for Optical Fiber Applications 65 nm CMOS 2GHz光纤前端前置放大电路的仿真研究

Rafidain journal of science Pub Date : 2022-09-01 DOI: 10.33899/rjs.2022.175390

Ruwaida Al-Berwari, Muhammed Hameed Alsheikhjader

引用次数: 0

Phenotypic and Molecular Investigation of Streptococcus pneumoniae Hemolysin 肺炎链球菌溶血素的表型和分子研究

Rafidain journal of science Pub Date : 2022-09-01 DOI: 10.33899/rjs.2022.175398

Roaa A. Thamer, A. AL-Rawi

引用次数: 0

Efficiency of Zinc Oxide Nanoparticles in Stimulating Germination and Seedling Growth of Soybean Plant Glycine max L. and its Protein Content 氧化锌纳米颗粒对大豆植株甘氨酸萌发、幼苗生长及其蛋白质含量的促进作用

Rafidain journal of science Pub Date : 2022-09-01 DOI: 10.33899/rjs.2022.175399

Ghada S. Mahdi, R. Yahya

{"title":"Efficiency of Zinc Oxide Nanoparticles in Stimulating Germination and Seedling Growth of Soybean Plant Glycine max L. and its Protein Content","authors":"Ghada S. Mahdi, R. Yahya","doi":"10.33899/rjs.2022.175399","DOIUrl":"https://doi.org/10.33899/rjs.2022.175399","url":null,"abstract":"The results of this study gived a scientific view about the role of zinc oxide nanoparticles (ZnO) in the seeds germination and seedlings growth of soybean ( Glycine max L.) when placed on the surface of solid Murashige and Skoog (MS) medium supplemented with concentrations (0, 20, 40, 60, 80, 100µg/ml) of those nanoparticles as stimulating factors. The results showed that the concentration of 40 μg/ml was superior to the percentage of germination of the growth seeds after 7 days which was 100 % at compared to the MS medium alone (control) which gave a percentage of germination of 75% after 15 days and also encouraged the same concentration to obtain the best length of the stems and roots groups at 10, 12 cm respectively, compared to the average lengths of seedlings growing on the control medium, with average lengths of 6 and 8.5 cm for stems and roots respectively. Also, this stimulation of zinc oxide nanoparticles was reflected on the growth and division parameters of cells through the protein content and DNA and RNA content of seedling cells, which increased with the presence of these nanoparticles, especially at a concentration of 40 μg /ml, as the protein content of cells reached 1.92 μg gm and with DNA, RNA contents 12.45 and 99.43 μg /gm respectively, compared to their ratios in seedling cells growing on MS medium.","PeriodicalId":20803,"journal":{"name":"Rafidain journal of science","volume":"129 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2022-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"85754769","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Efficiency Study of AISI-304L Stainless Steel Alloy Coated with the Presence of the Thermal Barrier at High Temperatures 热障涂层AISI-304L不锈钢合金的高温效率研究

Rafidain journal of science Pub Date : 2022-09-01 DOI: 10.33899/rjs.2022.175412

Taha Mahmoud, M. Hammoud

引用次数: 0