Ibn AL- Haitham Journal For Pure and Applied Sciences最新文献_第5页

Design of New V Shaped Thermotropic Liquid Crystals containing Heterocyclic 新型含杂环V型热致液晶的设计

Ibn AL- Haitham Journal For Pure and Applied Sciences Pub Date : 2023-04-20 DOI: 10.30526/36.2.3046

Athraa J. Ali, N. H. Karam

{"title":"Design of New V Shaped Thermotropic Liquid Crystals containing Heterocyclic","authors":"Athraa J. Ali, N. H. Karam","doi":"10.30526/36.2.3046","DOIUrl":"https://doi.org/10.30526/36.2.3046","url":null,"abstract":" The characterization and design of this study of new liquid crystals with a V\u0000 shape compounds containing thiazolidine-2,4-dione and 1,3-phenylene as a core unite with\u0000 mesophase properties were reported. Preparation and characterization of chloroacetic\u0000 acid, water, and thiourea to produce thiazolidine-2,4-dione [I] in the presence of\u0000 strong hydrochloric acid. The 4-hydreoxybenzaldehyde and n-alkyl bromide were reacted\u0000 with potassium hydroxide to create the n-alkoxy benzaldehyde., then the compound [I]\u0000 reacted with [II]n in presence of piperidine to produce compounds [III]n. Also,\u0000 converted resorcinol to a corresponding compound [IV] by refluxing pyridine and DMF\u0000 with two moles of chloracetyl chloride, after that interacted the compounds [III]n and\u0000 compound [IV] with sodium acetate to form compounds [V]n. FT-IR and 1HNMR spectroscopy\u0000 were really used to determine the structures of the produced substances. Using polarized\u0000 optical microscopy, these mesogens' mesomorphic characteristics were studied (POM).The\u0000 synthesized molecules exhibited enantiotropic liquid crystal phases, the substances\u0000 [V]1-4 exhibited an only the enantiotropic nematic phase.","PeriodicalId":13022,"journal":{"name":"Ibn AL- Haitham Journal For Pure and Applied Sciences","volume":"71 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-04-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"86077058","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

IMPROVEMENT ON DENTAL COMPOSITE RESIN USING Supra -Nano Chicken thigh bone fibers 超纳米鸡大腿骨纤维对牙科复合树脂的改进

Ibn AL- Haitham Journal For Pure and Applied Sciences Pub Date : 2023-04-20 DOI: 10.30526/36.2.2998

Rand Alkarkhy, Widad H. Jassim

引用次数: 0

Constraints Optimal Classical Continuous Control Vector Problem for Quaternary Nonlinear Hyperbolic System 第四系非线性双曲型系统的约束最优经典连续控制向量问题

Ibn AL- Haitham Journal For Pure and Applied Sciences Pub Date : 2023-04-20 DOI: 10.30526/36.2.2992

Jamil Amir Al-hawasy, Mayeada Abd Alsatar Hassan

引用次数: 0

Morphological Characterization and Conservation Status for the Herbarium Specimens of Orchidaceae in Kurdistan Iraq 伊拉克库尔德斯坦兰科植物标本馆标本形态特征及保存现状

Ibn AL- Haitham Journal For Pure and Applied Sciences Pub Date : 2023-04-20 DOI: 10.30526/36.2.3031

Saman Abdulrahman Ahmad, R. M.Salih, Sakar Y. Hama Yaseen Hama

引用次数: 0

Extend Nearly Pseudo Quasi-2-Absorbing Submodules (II) 扩展近伪拟2吸收子模块(II)

Ibn AL- Haitham Journal For Pure and Applied Sciences Pub Date : 2023-04-20 DOI: 10.30526/36.2.3045

O. Abdullah, Haibat Karim Mohammadali

引用次数: 0

Polypropylene/Pt Nanocomposite: Synthesis, Characterization and Study the Cytotoxic Effects 聚丙烯/铂纳米复合材料的合成、表征及细胞毒性研究

Ibn AL- Haitham Journal For Pure and Applied Sciences Pub Date : 2023-04-20 DOI: 10.30526/36.2.2989

M. Abdulwahid, Nada M. Abbass

{"title":"Polypropylene/Pt Nanocomposite: Synthesis, Characterization and Study the Cytotoxic\u0000 Effects","authors":"M. Abdulwahid, Nada M. Abbass","doi":"10.30526/36.2.2989","DOIUrl":"https://doi.org/10.30526/36.2.2989","url":null,"abstract":" This paper presents the synthesis of a polypropylene nanocomposite. The\u0000 nanocomposites were characterized using different techniques: atomic electron\u0000 microscopy (AFM), surface shape was evaluated by (SEM),(EDS),(XRD) and (FTIR). The study\u0000 showed that the platinum nanocomposite had a fatal effect on both strains of bacteria\u0000 used, as well as on the growth of fungi. The compound tested showed antioxidant\u0000 properties moderate activity was found. The mentioned material were evaluated in normal\u0000 cell line HdFn (Human Dermal Fibroblasts, neonatal) and breast cancer MCF-7 cancer cell\u0000 line , by MTT assay for study cytotoxic effects, morphological changes, all experiments\u0000 were conducted on cell lines by using the materials alone. The results of the MTT assay\u0000 showed that the material [PP/ Pt] had a toxic effect on the cell lines, and the toxicity\u0000 of the materials was concentration-dependent manner where that have higher toxicity on\u0000 the MCF-7 cell lines than HdFn. The toxic effects of material alone were reflected on\u0000 cell morphology by appearance irreversible cytopathic changes in the treated cells,\u0000 which ability to cause cellular death and DNA damage. When there appeared a significant\u0000 increase in the concentration of nanocomposite , [PP/Pt] nanocomposite have an\u0000 inhibitory effect on both breast cancer and normal cell lines. Conclude both materials\u0000 have genotoxic effects on normal and cancer cell lines.","PeriodicalId":13022,"journal":{"name":"Ibn AL- Haitham Journal For Pure and Applied Sciences","volume":"174 3 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-04-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"77465129","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

Radical Polymerization Kinetics of Hexyl Methacrylate in Dimethylsulfoxide Solution 甲基丙烯酸己酯在二甲亚砜溶液中的自由基聚合动力学

Ibn AL- Haitham Journal For Pure and Applied Sciences Pub Date : 2023-04-20 DOI: 10.30526/36.2.2985

Hala Rahman Noormohamad, Ameen Hadi

引用次数: 0

Solution of Population Growth Rate Linear Differential Model via Two Parametric SEE Transformation 人口增长率线性微分模型的双参数SEE变换解

Ibn AL- Haitham Journal For Pure and Applied Sciences Pub Date : 2023-04-20 DOI: 10.30526/36.2.3251

Ali Moazzam, Hira M. Aslam, N. Tabassum, Emad A. Kuffi

引用次数: 1

Influence Annealing on the Physical Properties of Silver Selenide Thin Film at Different Temperatures by Thermal Evaporation 热蒸发退火对不同温度下硒化银薄膜物理性能的影响

Ibn AL- Haitham Journal For Pure and Applied Sciences Pub Date : 2023-04-20 DOI: 10.30526/36.2.2990

Hiba Mumtaz

{"title":"Influence Annealing on the Physical Properties of Silver Selenide Thin Film at\u0000 Different Temperatures by Thermal Evaporation","authors":"Hiba Mumtaz","doi":"10.30526/36.2.2990","DOIUrl":"https://doi.org/10.30526/36.2.2990","url":null,"abstract":"This survey investigates the thermal evaporation of Ag2Se on glass substrates at\u0000 various thermalannealing temperatures (300, 348, 398, and 448) °K. To ascertain the\u0000 effect of annealingtemperature on the structural, surface morphology, and optical\u0000 properties of Ag2Se films,investigations and research were carried out. The crystal\u0000 structure of the film was described by\u0000 Xraydiffractionandothermethods.ThephysicalstructureandcharacteristicsoftheAg2Sethinfilms\u0000 wereexaminedusingX-rayandatomicforcemicroscopy(AFM)basedtechniques.TheAg2Se films\u0000 surface morphology was examined by AFM techniques; the investigation gave\u0000 averagediameter, surface roughness, and grain size mutation values with increasing\u0000 annealing temperature(75.74 nm–96.36 nm). Additionally, With various variations to the\u0000 nominal values, the absorbanceand transmittance spectra are further studied and reported\u0000 in accordance with the wavelength rangeof (400-1100) nm. The findings indicate that the\u0000 sample highest absorbance value was attained ata temperature treatment of 448 K, whereas\u0000 the sample highest transmittance was at a temperaturetreatment of 300 K. According to\u0000 the results, direct transitions were permitted in the under-reviewthin films at optical\u0000 energies of (2.15, 1.85, 1.75, and 1.7) eV, respectively","PeriodicalId":13022,"journal":{"name":"Ibn AL- Haitham Journal For Pure and Applied Sciences","volume":"12 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-04-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"81598942","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

A Brief Review: Some Interesting Methods of Synthesis Chromene Derivatives as Bioactive Molecules 铬烯类生物活性分子的合成方法综述

Ibn AL- Haitham Journal For Pure and Applied Sciences Pub Date : 2023-04-20 DOI: 10.30526/36.2.3180

Zainab Sallal Abdulsahib, R. M. Shakir

{"title":"A Brief Review: Some Interesting Methods of Synthesis Chromene Derivatives as\u0000 Bioactive Molecules","authors":"Zainab Sallal Abdulsahib, R. M. Shakir","doi":"10.30526/36.2.3180","DOIUrl":"https://doi.org/10.30526/36.2.3180","url":null,"abstract":"Chromene is considered a fused pyran ring with a benzene ring, which is found in\u0000 many plants and is part of many important compounds such as anthocyanidins,\u0000 anthocyanins, catechins, and flavanones. These compounds are included under the headings\u0000 \"flavonoids\" and \"iso-flavonoids.\" These compounds are well known as bioactive molecules\u0000 with wide medicinal uses. According to these pharmacokinetic characteristics, many\u0000 researchers are giving more attention to this type of compound and its derivatives. Many\u0000 chromene derivatives have been synthesized to study their biological effects for the\u0000 treatment of many diseases. Furthermore, the researcher displayed wide interest in\u0000 finding new methods for synthesizing chromene derivatives. These methods depend on\u0000 utilizing a new catalyst to increase the yield of this reaction or reduce the time of\u0000 the reaction. On the other hand, new methods were found by using a new reactant and a\u0000 new substrate. This review will present the most recent important methods for the\u0000 synthesis of chromene derivatives as well as an examination of their biological\u0000 activity. ","PeriodicalId":13022,"journal":{"name":"Ibn AL- Haitham Journal For Pure and Applied Sciences","volume":"42 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-04-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"77612122","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