Al-Qadisiyah Journal Of Pure Science http://qu.edu.iq/journalsc/index.php/JOPS <h2 style="text-align: center;"><span style="text-decoration: underline;"><em><strong>Scientific journal published by the college of science</strong></em></span></h2> <p style="text-align: center;"><em><strong>Is half annual scientific peer reviewed journal published by the College<br><em><strong>of science - University of Al-Qadisiyah</strong></em></strong></em></p> <h2 style="text-align: center;">&nbsp;</h2> <p style="text-align: center;">&nbsp;</p> en-US scijou@qu.edu.iq (Al-Qadisiyah Journal Of Pure Science) qahtan.adnan@qu.edu.iq (Dr.Qahtan A. Yousif) OJS 3.1.2.0 http://blogs.law.harvard.edu/tech/rss 60 EFFECT OF DEPOSITION PARAMETERS ON MECHANICAL PROPERTIES OF TIN FILMS COATED ON 2A12 ALUMINUM ALLOYS BY ARC ION PLATING (AIP) http://qu.edu.iq/journalsc/index.php/JOPS/article/view/923 <p>TiN films were deposited on 2A12 aluminum alloys by arc ion plating (AIP). Parameters of bias voltage, nitrogen gas pressure were changed to examine their influence on the hardness and abrasive wear properties of the films. Vickers hardness tests reveled that high values of the films were obtained at a bias voltage of –30 V and a N<sub>2</sub> gas pressure of 0.5 Pa. Dry and wet rubber wheel abrasive tests were conducted to assess the abrasive wear properties. It was found that the abrasive wear rate was greatly reduced with the introduction of TiN coatings. The effects of bias voltage on the hardness of substrates during deposition process, and its influence on the surface roughness of TiN films were also reported.</p> Samir Hamid Awad Copyright (c) 2019 Al-Qadisiyah Journal Of Pure Science http://qu.edu.iq/journalsc/index.php/JOPS/article/view/923 Mon, 20 May 2019 00:00:00 +0000 Generalized Limit Sets http://qu.edu.iq/journalsc/index.php/JOPS/article/view/924 <h4 style="text-align: justify;">The major object of this paper is to create a types of group spaces, specifically, generalized small group spaces and generalized dispersive group spaces and use generalized limit sets to characterize these spaces. Their definitions are given by depending on the definition of generalized thin sets which itself depend on the concept of generalized closed set. Also, we investigate further properties about generalized limit sets and explain the relationship among these group spaces and generalized limit sets.</h4> Sattar Hameed Hamzah Copyright (c) 2019 Al-Qadisiyah Journal Of Pure Science http://qu.edu.iq/journalsc/index.php/JOPS/article/view/924 Wed, 15 May 2019 00:00:00 +0000 SEROLOGICAL DETECTION OF COXIELLA BURNETII CHRONIC INFECTION- PHASE 1 IN SERUM OF HUMAN AND SHEEP AT AL-QADISIYAH PROVINCE, IRAQ http://qu.edu.iq/journalsc/index.php/JOPS/article/view/925 <h4>The present study was carried out to estimate the prevalence of chronic infections with <em>C. burnetii </em>in humans and sheep at different regions in Al-Qadisiyah province/Iraq, using specific-species enzyme-linked immunosorbent assay (ELISA) kits. An overall 366 blood samples, 182 human and 184 sheep, were collected aseptically during the period of February/2018 to November/2018. Total prevalence of <em>C. burnetii </em>phase-1 was 7.38% sero-positive samples that comprising 3.3% humans and 11.41% sheep. Regarding to residence factor, significant elevation (<em>P</em><em>&lt;0.05</em>) in sero-positive results among rural areas were recorded in both human (7.94%) and sheep (15%) samples. Data concerning to age factor were detected on significant increases (<em>P</em><em>&lt;0.05</em>) in sero-positive results of humans having an age of &gt;30 years (3.42%), and in sheep having an age of &gt;24 months (27.08%). Among sex factor, significant increases (<em>P</em><em>&lt;0.05</em>) in sero-positive prevalence of chronic infections were seen in samples of male human (6.56%) and female sheep (12.84%).</h4> Mithal Kareem Abass Al-Hassani Copyright (c) http://qu.edu.iq/journalsc/index.php/JOPS/article/view/925 Wed, 15 May 2019 00:00:00 +0000 Estimation oxidant and anti oxidant of patients with changeful heart discomfort and myocardiac breach of Diwaniya-Iraq http://qu.edu.iq/journalsc/index.php/JOPS/article/view/926 <p>The present study aimed&nbsp; check the relation&nbsp; between&nbsp; level oxidants&nbsp; and Anti- oxidants of person&nbsp; at changeful heart discomfort (type of heart disease)&nbsp; , myocardiac breach while&nbsp; identify role oxidants in develop disease&nbsp; of&nbsp; individual&nbsp;&nbsp;&nbsp;&nbsp; province of Diwaniya-Iraq. the study of patients who are divided into two &nbsp;&nbsp;group patient (A) included 45 patients changeful heart discomfort pectoris in different age , patient (B) included 45 patients with acute myocardiac breach&nbsp;&nbsp; at&nbsp; different age and group (C) 45&nbsp; as control health&nbsp;&nbsp; .The results demonstrate show a significant decrease (p≤ 0.05 ) in vitamin E, C, glutathion peroxidas and&nbsp; Glutathione (GSH) in group A,B and&nbsp; significant increase (p≤ 0.05)&nbsp; in&nbsp; caeruloplasmin , ferroxidase enzyme, and Malondialdehyde (MDA) of individual changeful heart attack&nbsp;&nbsp; and myocardiac breach .The conclusion of study&nbsp; the negative role of&nbsp; high free radical&nbsp; was subsisted&nbsp; heart disorder&nbsp;&nbsp; progress. heart attack&nbsp;&nbsp; reduces oxygen access to the heart muscle. Oxygen depletion leads to increased free radicals that contribute to heart problems<strong>.</strong></p> Hussein mahdi kareem Copyright (c) 2019 Al-Qadisiyah Journal Of Pure Science http://qu.edu.iq/journalsc/index.php/JOPS/article/view/926 Thu, 16 May 2019 00:00:00 +0000 Preparation and investigation of structural and magnetic properties of cadmium-zinc compound (Cd0.3Zn0.7Fe2O4) http://qu.edu.iq/journalsc/index.php/JOPS/article/view/927 <p>CdFe<sub>2</sub>O<sub>4</sub> and ZnFe<sub>2</sub>O<sub>4</sub> were prepared by Co-Precipitation method most frequently applied to prepare simultaneous precipitation of more than one component. Co-Precipitation used for achieving high homogeneity to the powder particles. Samples were investigated have phase cubic spinel structure according to the formula (Cd<sub>x</sub>Zn<sub>1-x</sub>Fe<sub>2</sub>O<sub>4</sub>). Spinel ferrite of the form (Cd<sub>0.3</sub> Zn<sub>0</sub>.<sub>7</sub>Fe<sub>2</sub>O<sub>4</sub>) has been prepared were sintered at room.The research studied structural, morphological and magnetic properties by X-ray diffractometer (XRD). (FE-SEM) field emission scanning electron microscope and (VSM) vibrating sample magnetometer.&nbsp; The element composition of cadmium-zinc ferrite shows increasing in lattice parameter (8.485887647) were calculated from XRD and crystalline size were determined. The results indicate increasing in volume of crystalline and distance between crystalline surfaces. The (FE-SEM) was used to determine the morphological variations and it’s showed increasing in particle size (47.14 to 210 nm) with the increase of the ferrite concentration. The magnetic properties were measured using the Vibrating Sample Magnetometer showed a narrow hysteresis loop. This indicates that these materials lead to soft-ferrite and that the narrowing of the hysteresis loop shows the loss of magnetism.&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;</p> Wissam Adel Hussiena, Firas A’aid Najimb Copyright (c) 2019 Al-Qadisiyah Journal Of Pure Science http://qu.edu.iq/journalsc/index.php/JOPS/article/view/927 Fri, 17 May 2019 00:00:00 +0000 Separation, preconcentration, extraction and spectrophotometric determination of Mn(VII) from Acidic Aqueous medium http://qu.edu.iq/journalsc/index.php/JOPS/article/view/928 <p>ABSTRACT: Liquid ion exchange method as sensitive application method of solvent extraction used for separation and determination Mn(VII) as MnO<sub>4</sub><sup>-</sup> from aqueous solution by used P-amino benzoic acid (P-ABA)in presence hydrochloric acid HCl at exact concentration. Spectrophotometric study show wave length for maximum absorbance of ion pair association complex extracted was <strong>λ<sub>Max</sub></strong> = 286nm as well as the study about pinpoint the optimum conditions for higher extraction efficiency shows this method need 0.6 MHCl in presence 60µg/5ml of Mn(VII) as MnO<sub>4</sub><sup>-</sup> and shaking time equal to (10min), the study shows extraction method was endothermic and thermodynamic data, was&nbsp;&nbsp;&nbsp; ∆H<sub>ex</sub> = 0.1374 kJmol<sup>-1</sup>&nbsp;&nbsp; ∆G<sub>ex</sub>= -60.89 KJ mol<sup>-1</sup> ∆S<sub>ex</sub> = 194.926 Jmol<sup>-1</sup> as well as the study involved electrolytes effect, interference effect, organic solvent effect so that spectrophotometric Determination of Mn(VII) in different samples&nbsp;</p> Fatimah A.Wanns Alghurabi, Shawket K. Jwad Copyright (c) 2019 Al-Qadisiyah Journal Of Pure Science http://qu.edu.iq/journalsc/index.php/JOPS/article/view/928 Mon, 20 May 2019 00:00:00 +0000 Strongly t-continuous and Strongly t-semisimple Modules http://qu.edu.iq/journalsc/index.php/JOPS/article/view/929 <p>We introduce and investigate strongly t-continuous modules. A module&nbsp; &nbsp;is called strongly t-continuous if &nbsp;is strongly t-extending, and every submodule of &nbsp;which contains &nbsp;and is isomorphic to a direct summand is a fully invariant direct summand of . It is shown that, while a direct summand of strongly t-continuous inherits the property, a direct sum of strongly t-continuous modules don’t. &nbsp;is strongly t-continuous&nbsp; if and only if &nbsp;is strongly t-extending and the endomorphism&nbsp; ring of &nbsp; is Von Neumann regular, if and only if , where &nbsp;is a strongly t-continuous module. We have shown that strongly t-continuous module and t-continuous module are coinciding under certain conditions. Many other properties and example are given.</p> Farhan Dakhil Shyaa , Inaam Mohammed Ali Hadi Copyright (c) 2019 Al-Qadisiyah Journal Of Pure Science http://qu.edu.iq/journalsc/index.php/JOPS/article/view/929 Mon, 10 Jun 2019 00:00:00 +0000 THE FIRST OBSERVATION OF THE BANK MYNA ACRIDOTHERES GINGINIANUS (LATHAM, 1790) (FAMILY: STURNIDAE, CLASS: AVES) IN THE WILD IN IRAQ http://qu.edu.iq/journalsc/index.php/JOPS/article/view/930 <h4 style="text-align: justify;">The Bank Myna <em>Acridotheres ginginianus </em>(Latham, 1790) is a member of the <em>Acridotheres </em>Genus of the Family Sturnidae (Passeriformes). This species spreads within the northern parts of South Asia around or close to the human settlements with recent expanding towards southern India. It can be distinguished from its analogous Common Myna <em>Acridotheres tristis</em> of the same Genus, which has been observed for the first time in Iraq at 1997, mainly by the orange skin patch around the eye with some other key morphological features. Since it was observed for the first time in Iraq in the bird-markets at 2001, some individuals of Bank Myna have been occasionally found in the cages in five districts. The first records for this species in the wild in Iraq were represented by unconfirmed observations in the wild at 2005 and 2008 due to the lack of documentation. This paper documents the first confirmed observation of the Bank Myna <em>Acridotheres ginginianus </em>for Iraq.</h4> Salwan Ali Abed , Mudhafar A. Salim Copyright (c) 2019 Al-Qadisiyah Journal Of Pure Science http://qu.edu.iq/journalsc/index.php/JOPS/article/view/930 Tue, 30 Apr 2019 00:00:00 +0000