University of Thi-Qar Journal of Science最新文献_第3页

Initial Transmission Influence on Saturable Absorber Absorption Activity of Passive Q-Switching Erbium -Doped Fiber Laser System 初始传输对无源 Q 开关掺铒光纤激光系统饱和吸收活性的影响

University of Thi-Qar Journal of Science Pub Date : 2023-12-28 DOI: 10.32792/utq/utjsci/v10i2.1139

Zainab Ali, Zainab Abdulsada, NAGAMALLI. Arasavalli, Sally Kadhim, Haneen Akram

引用次数: 0

Review of Asprosin as new Biomarker for diagnosis different Diseases 将阿司匹林作为诊断不同疾病的新生物标记物的综述

University of Thi-Qar Journal of Science Pub Date : 2023-12-28 DOI: 10.32792/utq/utjsci/v10i2.1125

Safaa Ehssan, Baydaa Ahmed Abed, Isam Noori Salman, Lujain A. Ghannawi

{"title":"Review of Asprosin as new Biomarker for diagnosis different Diseases","authors":"Safaa Ehssan, Baydaa Ahmed Abed, Isam Noori Salman, Lujain A. Ghannawi","doi":"10.32792/utq/utjsci/v10i2.1125","DOIUrl":"https://doi.org/10.32792/utq/utjsci/v10i2.1125","url":null,"abstract":"This study was designed to investigate the connections between (Inflammation, Cardiovascular diseases (CVDs),-diabetes mellitus,-Obesity,-polycystic ovary syndrome, thyroid and cancer )-and asprosin hormone. Asprosin is present in high amounts in a variety of diseases that are considerably manifested in several cases and illnesses Asprosin hormone is newly adipokine helps the liver produce glucose. White adipose tissue secretes the novel hormone asprosin, which stimulates the release of hepatic glucose, making protein a possible target for new treatments for obesity and type 2 diabetes mellitus. Exons (65 and 66) of the gene( Fibrillin 1 (FBN1)), which was recently shown to be a new hormone released by white adipose tissues, are the final two exons that code for asprosin. However, further research is needed to fully understand how asprosin affects pancreatic beta-cells, leading to pathologically elevated cellular dysfunction and inflammation. Asprosin hormone is raised in human with metabolic disease. The findings imply that asprosin hormone may be crucial for maintaining insulin and glucose homeostasis as well as acting as a risk factor for a number of diseases, including CVDs, obesity, T2DM, cancer, hypothyroidism, and PCOS. Depleting asprosin or attenuating its activity may potentially offer a novel therapeutic option for the treatment of T2DM and obesity.","PeriodicalId":23432,"journal":{"name":"University of Thi-Qar Journal of Science","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2023-12-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139150368","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

Synthesis, characterization and Theoretical study of some 2-Oxopyridine Carbonitrile derivatives that contain tetrazole ring and evaluation of their Biological activity 一些含有四氮唑环的 2-氧代吡啶腈衍生物的合成、表征和理论研究及其生物活性评估

University of Thi-Qar Journal of Science Pub Date : 2023-12-28 DOI: 10.32792/utq/utjsci/v10i2.1145

A. H. Mekky, Meinaa Jaber Dalal, Athraa G. Sager, Noor Abd Alkhudhur Salmn, Abbas Talib Abd Ali, M.R. Jayapal

{"title":"Synthesis, characterization and Theoretical study of some 2-Oxopyridine Carbonitrile derivatives that contain tetrazole ring and evaluation of their Biological activity","authors":"A. H. Mekky, Meinaa Jaber Dalal, Athraa G. Sager, Noor Abd Alkhudhur Salmn, Abbas Talib Abd Ali, M.R. Jayapal","doi":"10.32792/utq/utjsci/v10i2.1145","DOIUrl":"https://doi.org/10.32792/utq/utjsci/v10i2.1145","url":null,"abstract":"A series of 2-oxo-6-[4-(1H-tetrazol-1-yl) phenyl-1,2-dihydropyridine-3-carbonitrile 3,4-dimethoxyphenyl)-2-oxo-6-4-(1H-tetrazol-1-yl) phenyl]-1,2-dihydropyridine-3-carbonitrile and 2-oxo-6-[4-(1H-tetrazol-1-yl) phenyl]-4-(thiophen-2-yl)- 1,2-dihydropyridine-3-carbonitrile), were prepared from the reaction of 4-aminoacetophenone, sodium azide in the presence of glacial acetic acid via cyclization reaction to produce (1-(4-(1H- 1,2,3,4tetrazole-1-yl) phenyl) ethan-1-one). Followed by condensation of (1-(4-(1H- 1,2,3,4tetrazole-1-yl) phenyl) ethan-1-one) with ethyl cyanoacetate, aromatic aldehydes, and ammonium acetate at 110℃ to give(3,4-dimethoxyphenyl)-2-oxo-6-4-(1H-tetrazol-1-yl)phenyl]-1,2-dihydropyridine-3-carbonitrile and 2-oxo-6-[4-(1H-tetrazol-1-yl) phenyl-1,2-dihydropyridine-3-carbonitrile 3,4-dimethoxyphenyl)-2-oxo-6-4-(1H-tetrazol-1-yl) phenyl]-1,2-dihydropyridine-3-carbonitrile and 2-oxo-6-[4-(1H-tetrazol-1-yl) phenyl]-4-(thiophen-2-yl)- 1,2-dihydropyridine-3-carbonitrile. The synthesized compounds were characterized by spectral methods (FT-IR and 1H-NMR & 13C-NMR). The synthesized compounds have been estimated in lab. for biological efficiency. Preliminary biological testing reveals that the compounds have exhibited activity against the two types of bacteria (staphylococcus aureus, and Klebsiella pneumonia). Both Compounds had high activities. Docking experiments for the compounds were undertaken in order to better understand the ligand-protein interactions in terms were done using py-px and BIOVIA/ Discovery studio of binding affinity. The computed binding affinities were consistent with the MIC values","PeriodicalId":23432,"journal":{"name":"University of Thi-Qar Journal of Science","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2023-12-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139151356","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

An Experimental Investigation of the Performance of a Solar Heater under Climate Conditions of South of Iraq 伊拉克南部气候条件下太阳能加热器性能的实验研究

University of Thi-Qar Journal of Science Pub Date : 2023-12-28 DOI: 10.32792/utq/utjsci/v10i2.1148

Hameed B. Mahood, A. Sayer, Samia Merdas, Ibrahim Alsayer

引用次数: 0

Isolating and Identifying Some Types of Bacteria and Fungi from wheat grains and studying the effect of some types of antibiotics and the aqueous and alcoholic extract of the Alium sativum plant on them 从麦粒中分离和鉴定一些类型的细菌和真菌，并研究一些类型的抗生素以及茜草水提取物和酒精提取物对它们的影响

University of Thi-Qar Journal of Science Pub Date : 2023-12-27 DOI: 10.32792/utq/utjsci/v10i2.1144

st Hadeel, Ali Ghjiri, Hanan Saadon, Ahmed A. Al-Mankhee

{"title":"Isolating and Identifying Some Types of Bacteria and Fungi from wheat grains and studying the effect of some types of antibiotics and the aqueous and alcoholic extract of the Alium sativum plant on them","authors":"st Hadeel, Ali Ghjiri, Hanan Saadon, Ahmed A. Al-Mankhee","doi":"10.32792/utq/utjsci/v10i2.1144","DOIUrl":"https://doi.org/10.32792/utq/utjsci/v10i2.1144","url":null,"abstract":"The study included the effect of Alium sativum aqueous and alcoholic extracts on the growth of bacteria and fungi isolated from the study The following types of bacteria appeared:Pseudomouas aeruginosa ,Aeromonas salmonicida ,Escherichia coli Using the diffusion method The aqueous extract was shown to be somewhat higher than the alcoholic extract in inhibiting the above-mentioned bacteria, In the past three decades, disease-resistant fungi and bacteria have emerged it caused major health problems all over the world through the pharmaceutical industry produced quantities of antibiotics. Unfortunately, resistance to antibiotics is increasingly important. Find plants with antifungal and antibacterial activity it has gained increasing importance in recent years due to the development of resistance. On the other hand, it is known that free radicals play an essential role in many diseases. Biochemical damage caused by free radicals to cells and tissues. If the average inhibition diameters at a concentration of 100% for the aqueous extract were (20.16.18) mm, respectively While the rates of inhibition diameters for the alcoholic extract reached (17,14,16) mm, respectively. As for the fungi isolated from the study, they are: Aspergillus .niger ,Rhizopus stolonifer . : Aspergillus candidus .Aspergillus fumigatus. Aspergillus flavus . Aspergillus ochraceus It was found that the aqueous and alcoholic extracts have an inhibitory effect on the growth of the isolated fungi when using the method of diffusion with the medium","PeriodicalId":23432,"journal":{"name":"University of Thi-Qar Journal of Science","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2023-12-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139153206","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

Study of Soliton Interaction in Optical Fibers with Third Order Dispersion and Higher Order Nonlinear Effects 具有三阶色散和高阶非线性效应的光纤中的孤子相互作用研究

University of Thi-Qar Journal of Science Pub Date : 2023-12-27 DOI: 10.32792/utq/utjsci/v10i2.1114

Sheimaa A. Fengen Alkinzawi, Hassan A. Yasser

{"title":"Study of Soliton Interaction in Optical Fibers with Third Order Dispersion and Higher Order Nonlinear Effects","authors":"Sheimaa A. Fengen Alkinzawi, Hassan A. Yasser","doi":"10.32792/utq/utjsci/v10i2.1114","DOIUrl":"https://doi.org/10.32792/utq/utjsci/v10i2.1114","url":null,"abstract":"In this paper, we present a numerical approach to solve the GNLSE and analyze soliton interaction phenomena using COMSOL environment. By leveraging the capabilities of COMSOL's PDE module, we can accurately capture the dynamics of solitons and investigate their interactions. We analyze the impact of different parameters such as soliton power, initial separation distance, and dispersion characteristics on the soliton dynamics. Furthermore, we examine the role of higher-order dispersion terms in shaping the soliton interactions. Our findings demonstrate the effectiveness of the proposed numerical approach in accurately simulating and analyzing soliton interaction phenomena. The COMSOL-based methodology provides a flexible and efficient framework for studying complex nonlinear optical systems, enabling researchers to gain insights into the behavior of solitons in different media and design optimized communication systems. This paper contributes to the understanding of soliton dynamics and provides a practical tool for investigating the behavior of solitons in nonlinear dispersive media. The presented numerical approach using COMSOL opens avenues for further research in nonlinear optics and fiber optic communication systems.","PeriodicalId":23432,"journal":{"name":"University of Thi-Qar Journal of Science","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2023-12-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139153480","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

Study of the Transmission and Reflection of Electron Waves through a Bridge System Consisting of Quan-tum Dots Using the Tight-Binding Approximation 利用紧密结合近似法研究电子波在由泉点组成的桥系统中的传输和反射

University of Thi-Qar Journal of Science Pub Date : 2023-12-27 DOI: 10.32792/utq/utjsci/v10i2.1147

S. Al-Saidi

引用次数: 0

Studying the electronic characteristics and physisorption of OTS on the pure silver surfaces (Ag10), (Ag15) and (Ag18) 研究纯银表面 (Ag10)、(Ag15) 和 (Ag18) 上 OTS 的电子特性和物理吸附作用

University of Thi-Qar Journal of Science Pub Date : 2023-12-26 DOI: 10.32792/utq/utjsci/v10i2.1123

Fatima Thamer, Abbas Shwya alwan

{"title":"Studying the electronic characteristics and physisorption of OTS on the pure silver surfaces (Ag10), (Ag15) and (Ag18)","authors":"Fatima Thamer, Abbas Shwya alwan","doi":"10.32792/utq/utjsci/v10i2.1123","DOIUrl":"https://doi.org/10.32792/utq/utjsci/v10i2.1123","url":null,"abstract":"The interaction between organic Nano molecules and solid surfaces play a prominent role in numerous applications such as charge transfer and physisorption. Density functional theory (DFT) by utilizing sophisticated algorithms in Gaussian 09 software package at LANL2DZ, B3LYP level at the ground state energy had been utilized to attain the merits, molecular structure, contour maps density, electrostatic potentials (ESPs), density of states , infrared spectra (IR), electronic states, HOMO and LUMO energies, Energy gaps (Eg), electron affinity (E.A), ionization potential (I.P), dipole moment, the eigen values of the polarizabilities tensor αxx ,αyy and αzz , average polarizability ,and symmetry to the geometrical nanostructures (Ag10), (Ag15), (Ag18), (Ag10-OTS), (Ag15-OTS) and (Ag18-OTS). Physisorption phenomena impact tremendously to the symmetry of the geometrical structure. Molecular bonds of the (σ, σ^*, π, π^*, δ and δ^*) originate because the overlap between ( s or p atomic orbitals) in the organic nanomaterials and ( d atomic orbitals) in the silver nanosurface. The distortion in contour maps interprets happening physisorption or charge transfer. According infrared spectra it can be seen new bonds because of the physisorption. Density of states diagrams demonstrates changing in the magnetic properties after physisorption. Simulation of silver (Ag) in nano dimensions make it semiconductor as compared with the bulk. The values of energy gaps of all hybrid nanostructures are in the range of semiconductor.","PeriodicalId":23432,"journal":{"name":"University of Thi-Qar Journal of Science","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2023-12-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139155935","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

Multi-Wall Carbon Nanotubes with NiO and pt as Counter Electrodes for DSSC applications 多壁碳纳米管与作为 DSSC 应用反电极的 NiO 和 pt

University of Thi-Qar Journal of Science Pub Date : 2023-12-26 DOI: 10.32792/utq/utjsci/v10i2.1124

H. Ali

{"title":"Multi-Wall Carbon Nanotubes with NiO and pt as Counter Electrodes for DSSC applications","authors":"H. Ali","doi":"10.32792/utq/utjsci/v10i2.1124","DOIUrl":"https://doi.org/10.32792/utq/utjsci/v10i2.1124","url":null,"abstract":"NiO-MWCNT was synthesized using the hydrothermal method and used as a low-cost, platinum-free counter electrode for Dye-sensitized solar cells DSSCs. The DSSC based on NiO-MWCNT as a counter electrode achieves a high-power conversion efficiency of 8.53% under a simulated solar illumination of 100 mW cm-2 (AM 1.5). This efficiency is comparable to 7.9% for a DSSC equipped with a Pt counter electrode. Good charge conduction characteristics of the NiO-MWCNT electrode decreases charge loss and boosts the effectiveness of converting light into electrical current. The NiO-MWCNT electrode also increases light absorption and increases the efficiency of converting light energy into electrical energy by enhancing light dispersion within the solar cell. Other advantages of NiO-MWCNT electrodes are low cost and great sustainability. Comparing it to platinum, rare and expensive material, the use of NiO-MWCNT reduces the cost of the solar cell and contributes to environmental sustainability. In addition, the NiO-MWCNT electrode has a high chemical stability, making it more resistant to corrosion and damage in dye solar cell environments. This enhances the lifespan of the cell and ensures its long-term sustainability.","PeriodicalId":23432,"journal":{"name":"University of Thi-Qar Journal of Science","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2023-12-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139154947","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

Optical Properties of Germanium Nanoparticles Prepared by Laser Ablation 激光烧蚀制备的锗纳米粒子的光学特性

University of Thi-Qar Journal of Science Pub Date : 2023-12-26 DOI: 10.32792/utq/utjsci/v10i2.1119

Shahad Riyadh, Mohammed Salman Mohammad, Noorulhuda Riyadh Naser

引用次数: 0