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Journal of Basrah Researches (Sciences)

مجلة ابحاث البصرة ( العلميات)

ISSN: 18172695
Publisher: Basrah University
Faculty: Education
Language: Arabic and English

This journal is Open Access

About

Journal of Basrah Researches- Sciences publish peer-reviewed research papers, aims to explore the research data, inventions, findings in all the field of applied sciences focusing on information that you can immediately use in your practice. The Journal of Basrah Researches- Sciences allows you to obtain effective and proven latest technological information regarding their current uses in the form of news items.
Date of First issue (1988)
No. of issues per year (4)
No. of papers per issue (22)
No of Issues published between 2004-2013 (53)

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Contact info

Journal of Basrah Research ( Sciences),College of Education for pure Science, University of Basrah, Basrah,Iraq
07801089172
dabrhs@hotmail.com


Table of content: 2019 volume:45 issue:1A

Article
Effect of Annealing Temperature on Structural and Optical Properties of CdS Thin Films

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Abstract

The CdS thin films were deposited on glass substrates by two different methods, chemical bath deposition (CBD) and thermal evaporation (T.E.). The effect of annealing temperature on the structural and optical properties of the CdS thin films were investigated. The structural properties of CdS thin film was studied by X-ray diffraction. It was observed that the films have a polycrystalline hexagonal (wurtzite) structure with preferred orientation along (002) plane. The crystallite size calculated from XRD increases as the annealing temperature is increased. We observed that the lattice constant, micro strain, dislocation densities and number of crystallites per unit area of the films are quite different in these processes from XRD analysis by considering high intense diffraction peaks of the as-deposited and annealed films. The energy band gap in nanocrystalline CdS thin films has been estimated from absorption measurements. The band gap values for CBD-CdS thin films decreased from 2.75 to 2.45 eV and for T.E.-CdS thin films decreased from 2.60 to 2.43 eV with increasing annealing temperature. Small nanocrystals display wide band gaps as a result of the quantum confinement experienced by nanocrystals of a certain size


Article
Synthesis, Characterization, and Cytotoxicity study of Some Pyridine Chalcone Derivatives

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Abstract

Currently, chalcone derivatives are an interest research for the designing a new compounds as anticancer agents due to the privilate structure of chalcone compounds in the drug discovery system. In this study, we synthesized 5 chalcone derivates which are (CH (A) , CH (B) , CH (C) , CH (E) , and CH (D)) from the reaction of substituted acetophenone with 2- pyridine carboxyaldehyde by using Claisen- Schmidt condensation method and catalyze the reaction by KOH pellets. After purification process, the yield was good to characterize them by using chemical structure analysis (FTIR, C13NMR, Mass spectrum), which approved their structures. Cytotoxicity evaluation was with 100 µM for each concentration compound against Human Breast Cancer MDA-MB231 Cells and we identified two pyridine chalcone derivatives showed a moderate action. The results of toxicity evaluation pave a forward step to develop new anticancer agents as from pyridine chalcones as a lead structure


Article
Estimation and Evaluate of uric acid , Cholesterol and Triglycerides Levels in Hypertension patients in Basra Governorate – Iraq

Authors: Haneen S. Khalil --- Sahera Gh. Sayyah
Pages: 32-44
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Abstract

The study included the measurement of the mean serum Uric acid, Cholesterol, Triglycerides levels in hypertension patients in Basra Governorate – Iraq. In this study a total number of (80) hypertensive patients (41 males, 39 females) classified according to (age, sex, family history, severity and smoking) as compared with (60) healthy (34 males, 26 females) subjects were investigated as control group. It was found that a highly significant increase is in uric acid, triglycerides and cholesterol in the blood of hypertensive patients as compared with healthy subjects. In accordance with age, severity, family history and smokers. There were significant changes in these variables between males and females. In conclusion hypertensive patients suffer a high degree of reactive oxygen species (ROS) formation causing considerable oxidative stress indicated a high levels of the serum uric acid, triglycerides and cholesterol


Article
Pre-Treatment Of Erythrocytes With Garlic Or Tea Tree Oil Promotes Oxidation Of The Peroxiredoxin 2 Protein And Makes The Cells Less Susceptible To Infection By Plasmodium Falciparum

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Abstract

Plasmodium falciparum, the causal organism of the most deadly form of human malaria, lacks catalase and glutathione peroxidase enzymes and thus is highly dependent on peroxiredoxin (Prx) enzymes for its defence against oxidative stress. In addition to its own five Prx enzymes, P. falciparum also uses the human Prx2 protein which it imports from the host erythrocyte. Here we have investigated the effects of pre-treatment of uninfected erythrocytes with increasing concentrations of garlic or tea tree oil on the redox/oligomerization state of the Prx2 protein and on the P. falciparum parasitemia in the erythrocytes. Both oils were shown to be able to disrupt the Prx2 redox state in pre-treated uninfected erythrocytes by promoting oxidised dimer formation. Garlic oil was a more potent promotor of the oxidation/inactivation of the Prx2 protein than tea tree oil. The results also showed that both oils promoted oxidation/inactivation of the Prx2 protein at the 2nd generation ring stage and also appeared to promote oxidation of other sulfhydryl group-containing proteins. Additionally, pre-treatment of uninfected erythrocytes with the test oils made the erythrocytes less susceptible to infection by P. falciparum at the 2nd generation ring stage (new infections). Garlic oil was more effective than tea tree oil in this respect. Thus, oxidation of the Prx2 protein might be involved in decreasing the susceptibility of pre-treated uninfected erythrocytes to infection by P. falciparum. These results suggest that garlic and tea tree oils could be used as antimalarial drugs


Article
The Electron Transport Properties of Qubit Coupled with SET: The Tuning of the Qubit Energy Levels

Authors: Jenan M. Al-Mukh --- Ayat T. Ibrahim
Pages: 57-64
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Abstract

In this study, theoretical treatment is presented to study the electron transport for a system consists of two principle coupled parts, these are the key element of quantum computer which is represented by the qubit and the detector. Model calculation that includes the derivatives of the time dependent equations of motion for the system under consideration is presented. We find particular relations for the time variation of the occupation numbers of the qubit quantum dots and the single electron transistor dot as well as the current that flows from the left lead. Perfect quantum measurement can be obtained through the initialization and manipulation processes which are intended the system initialization and manipulation before the start measurement process and through the control of the parameters, the important parameters connected the electrical structure of sub device. The most important use gate voltage to tunning the qubit energy levels

Table of content: volume:45 issue:1A