Tikrit Journal of Pure Science最新文献

{"title":"Global Conharmonic Concept Type Nearly Kahler Manifold","authors":"Ali A. Shihab","doi":"10.25130/tjps.v20i4.1233","DOIUrl":"https://doi.org/10.25130/tjps.v20i4.1233","url":null,"abstract":"The concept of permanence conharmonic type Nearly Kahler manifold conditions are obtained when the Nearly Kahler manifold is a manifold conharmonic constant type. Proved that the local conharmonic constancy of type Nearly Kahler manifold is equivalent to its global conharmonic constancy of type. And also proved that the Nearly Kahler manifold conharmonic constant type is a manifold of constant scalar curvature.The notion of constancy of type Nearly Kahler manifolds was introduced A.Greem ([1], [2], [3]) and has proved very useful in the study of the geometry of nearly kahler manifolds. Next nearly kahler manifolds of constant type considered various mathematicians (see. [1], [3], [4], [5], [6], [7]). Comprehensive description of Nearly Kahler manifolds of constant type was obtained V.F.Kirichenko [6]. In [6] it is shown that Nearly Kahler manifold of pointwise constant type description by the identity  , where B - a function on Nearly Kahler manifold, . Wherein local constancy of type Nearly Kahler manifold is equivalent to the local constancy of its type. Moreover, the covariant constancy of structure tensors of the first and second kind it follows immediately that, the constancy of type at only one point Nearly Kahler space implies global consistency of its type.","PeriodicalId":23142,"journal":{"name":"Tikrit Journal of Pure Science","volume":"18 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-02-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"75207735","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}

{"title":"ON SPECTRA OF SOME TENSORS OF SIX-DIMENSINAL KÄHLERIAN AND NEARLY-KÄHLERIAN SUBMANIFOLDS OF CAYLEY ALGEBRA","authors":"Ali A. Shihab, Mihail Banaru","doi":"10.25130/tjps.v20i4.1227","DOIUrl":"https://doi.org/10.25130/tjps.v20i4.1227","url":null,"abstract":"Six-dimensional Kählerian and nearly-Kählerian submanifolds of Cayley algebra are considered. Spectra of some classical tensors of such submanifolds of the octave algebra are computed. It is proved that a nearly-Kählerian six-dimensional submanifold of Cayley algebra is conharmonically flat if and only if it is holomorphically isometric to the complex Euclidean space  with a canonical Kählerian structure. \u0000 ","PeriodicalId":23142,"journal":{"name":"Tikrit Journal of Pure Science","volume":"12 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-02-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"74412904","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}

{"title":"Study of Thioredoxin Isolated from Human Blood Serum","authors":"Luay A. Al-Helaly, Amera A. Hamdon","doi":"10.25130/tjps.v20i3.1190","DOIUrl":"https://doi.org/10.25130/tjps.v20i3.1190","url":null,"abstract":"The research included the separation of thioredoxin (Trx) from human blood serum using different biochemical techniques. One proteinous peak had been isolated by gel filtration using sephadex )G-50) that produced by ammonium sulphate precipitation(65%) after dialysis.  It was noted that there are two peaks of Trx when using ion exchange-type DEAE-cellulose for the product of gel filtration column. \u0000The approximately molecular weight of the isolated Trx using gel filtration chromatography (G-50) and electrophoresis technique type SDS-PAGE were (12305 + 190) Dalton and 12461 Dalton respectively . \u0000The results showed that inhibited and activated effects of drugs on Trx working. The results showed that inhibited to 44.59% for paracetamol, dexathamazone, diphenhydramine-HCl, theophlline anhydrous,  pseudoephedrine, ceramide and caffeine anhydrous, but metronidazole and chlorpheniramine malate have activated effect to 110.8% and 21.62 respectively. ","PeriodicalId":23142,"journal":{"name":"Tikrit Journal of Pure Science","volume":"15 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-02-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"74012872","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}

{"title":"On strongly faintly M-θ-i-continuous functions in Bi-Supra Topological Space","authors":"Taha H. Jasim, Reem O. Rasheed","doi":"10.25130/tjps.v20i4.1230","DOIUrl":"https://doi.org/10.25130/tjps.v20i4.1230","url":null,"abstract":"In this paper we introduces a new definition , called i- open and via this definition we  introduce class of topological concepts(µ-θ-i-open set, µ-θ-i-closed, strong faintly µ-θ-continuity,  strong µ-θ-continuity )and we generalized these concepts in bi -supra topological space .At last  many  important theorems in strongly faintly M-θ-i-continuous functions are investigated. And study  the relationships among  these functions and other forms are discussed.","PeriodicalId":23142,"journal":{"name":"Tikrit Journal of Pure Science","volume":"24 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-02-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"84593953","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}

{"title":"Study of the thermal, mechanical and costrictional properties to some Foreign dental amalgams using in Iraq","authors":"Abdul Kareem D.A, Rajaa S.N., HALEEMAH S.M.","doi":"10.25130/tjps.v20i3.1200","DOIUrl":"https://doi.org/10.25130/tjps.v20i3.1200","url":null,"abstract":"In this paper, the preparation of five samples of amalgam alloy used for the restoration of teeth has been done using the  amalgamation device for mixing alloys with mercury. The alloys included four high copper amalgams which are (SDI, Septalloy NG 50, YDA alloy, TG alloy) and the percentage of copper (28, 22.7 , 25, 24) % respectively, which are ready fillings. While the fifth alloy (Septalloy NG70) is for low copper amalgam with Copper ratio of  12.7%. The X-ray diffraction has been tested to study the structural properties of these samples and found for the four high-copper alloys increment in the intensity for the diffraction values of the two phases Ɛ - Cu3Sn, ƞ - Cu6Sn5 with the disappearance of the phase γ2 - Sn7Hg which decreases the intensity  of this phase with copper increment, while in the low- copper alloy it shows an increase in the peaks representing the phases Ɛ - Cu3Sn, ƞ - Cu6Sn5 with an increasing proportion of copper in the amalgam, as the relationship is positive between copper increment and the tops increment of these two phases, and the relationship is inverse between the copper ratio increment in amalgams and phase γ2 where phase reacts with Eutects silver - copper component phases γ1 - Ag2Hg3, ƞ - Cu6Sn5. Also the mechanical and thermal properties has been studied for each one of five groups of amalgam alloy like compressive strength , micro hardness , thermal conductivity","PeriodicalId":23142,"journal":{"name":"Tikrit Journal of Pure Science","volume":"55 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-02-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"80199366","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}

{"title":"Study the impact of crude oil on some physiological activities of Oscillatoria splendida","authors":"Hammed S. Khamees, Ali Muayad Sultan, Ayman A. Saleem","doi":"10.25130/tjps.v20i3.1187","DOIUrl":"https://doi.org/10.25130/tjps.v20i3.1187","url":null,"abstract":"The effect of different concentration of crude oil had been examined upon Oscillatoria splendida, it was depended upon measuring Growth as optical density, Chlorophyll, Phycocyanin and Protein concentration as an Physiological activities indicator of crude oil effects on Oscillatoria splendida, in addition to morphological changes. The growth optical density in the control sample in the day 30 was (0. 34), while it was (0.148) & (0.08) at 0.25% & 0.5% of crude oil respectively, 41% of chlorophyll concentration has been reduced under effect of 0.25% of crude oil, and reduction 63% of chlorophyll concentration with treatment 0.5%. Protein was reduced 45% at 0.25%, and 82% at 0.5% of crude oil. It was observed reduction growth, chlorophyll, phycocyanin as well as the protein concentration to a minimum under the influence of crude oil treatment 1% and 2% respectively. As well as the absorption spectrum infrared by FTIR show there were absence of methyl group CH3 at (2950 cm-1), (2870 cm-1) and other bundle such as (2300) cm-1, (1500) cm-1, and this is could due to consumed by this species. With appearance a new compounds at 2400 cm-1 and 800 cm-1. Morphologically Observed that the cells within the filament appearance clearly.","PeriodicalId":23142,"journal":{"name":"Tikrit Journal of Pure Science","volume":"29 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-02-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"86526660","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}

{"title":"Geomorphological Study for Selective Sections of Injana Formation/ Northern Iraq","authors":"","doi":"10.25130/tjps.v20i5.1249","DOIUrl":"https://doi.org/10.25130/tjps.v20i5.1249","url":null,"abstract":"The research includes a geomorphological research of Injana Formation for three sections Hemreen/Tikrit, Hemreen/Tozkormato and Kany Domelan (Dibs). The study includes the analysis of this geomorphological map results in limitating four geomorphological units of Homoclinal origin and three units of erosional origin and surface drainage . It has  been shown from the  analysis of the surface drainage net that the  drainage pattern is the dominate in the study areas","PeriodicalId":23142,"journal":{"name":"Tikrit Journal of Pure Science","volume":"16 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-02-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"91544694","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}

{"title":"Techniques for Mixed Multiple Shooting for solve Stiff Initial Value Problems","authors":"Khalid A. M. Khalaf, Bashir M. S. Khalaf","doi":"10.25130/tjps.v20i5.1251","DOIUrl":"https://doi.org/10.25130/tjps.v20i5.1251","url":null,"abstract":"The object of the research is to develop a number of techniques on the subject of multiple shooting for solving stiff initial value problems, and these techniques increase the accuracy of numerical solutions of stiff problems, as well as reduce the accumulation of errors, In addition to reducing the algebraic equations to get to the solution. We used mixed-multiple shooting in the development of these techniques. \u0000 ","PeriodicalId":23142,"journal":{"name":"Tikrit Journal of Pure Science","volume":"248 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-02-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"76984055","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}

{"title":"Evaluation of the Suitability of Mukdadiya Formation Rocks for Using in Concrete / Northern Hemrin Anticline","authors":"Amera Ismail Hussain, Maath Shukrie Sarhan","doi":"10.25130/tjps.v20i3.1195","DOIUrl":"https://doi.org/10.25130/tjps.v20i3.1195","url":null,"abstract":"The aim of this work is to evaluate the suitability of gravely sediments of the Mukdadiya formation (Lower Pliocene) in the northern Hemrin anticline on Tikrit – Kirkuk road / north-eastern of Iraq for concrete uses , and compared with the standard specifications (Iraqi, American and British) samples have been collected from four different stations by two samples for each station for the purpose of conducting various geotechnical tests including physical tests , strength and durability as well as chemical tests) Results of geotechnical evaluation for physical tests show that the grain size distribution  of  the 1st and 2nd  stations suitable for uses to concrete for classes (40) class except  3rd. and 4th station , according to[1] , the results of Flakiness Index and elongation Index shows that the samples of four stations did not exceed the permitted border According to the British Standard and suitable to be provided by the requirements for the use of concrete .                           \u0000The strength tests also showed the results of (AIV) shows it's don’t exceed than 9.95%) for all sample in the study area , and for compressive strength that taken from point load test shows that all stations classified the aggregate strength (very strong  -  extremely strong) according to[3] .                                                         \u0000Durability geotechnical tests (Loss Angeles) results shows the percentage of weight loss for the four samples are not exceed the defined value 35% , so it is suitable for use for concrete and sub-base coarse aggregate and soundness test results shows suitability of all samples  to use in concrete works . \u0000The chemical analysis  shows suitability according to the standards . \u0000Overall, the study showing suitability for all tests with the requirements of the aggregate that are used in concrete except simple deviation in the grain grading in the third and fourth station .","PeriodicalId":23142,"journal":{"name":"Tikrit Journal of Pure Science","volume":"3 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-02-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"90048750","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}

{"title":"Improvement of antagonism and fungicides tolerance in Trichoderma harzianum and T.viride local isolates by Ultra-Violet irradiation","authors":"Abdullah Abdul Kareem Hassan","doi":"10.25130/tjps.v20i4.1207","DOIUrl":"https://doi.org/10.25130/tjps.v20i4.1207","url":null,"abstract":"Among 22 Iraqi Trichoderma harzianum  and T.viride isolates, T3,T5,D5,S1 and S6 related to T. harzianum  showed a higher antagonistic activity against the plant pathogenic fungi  Fusarium oxysporum and Rhizoctonia solani. These isolates were selected for improvement their biocontrol activity by usi \u0000ng uv-irradiation. The optimum exposure time to ultraviolet irradiation is 30 min, in which, the percentage of kill was 98-99% .After UV-irradiation treatment (Quartz lamps 30W at 240-280 nm, peak 254nm, distance from the source was 20 cm), antagonistic capability against R. solani and F. oxysporum was improved in mutants MT3,MT5,MS1 and MS6, in which antagonistic reaction score were 3.6,3.9,3.2 and 3.6 against F. oxysporum and 3.7,4,3.4 and 4 against R. solani compared to 3.2, 2.8, 2.6 and 2.8 against F. oxysporum and 2.7, 2.9,3.1 and 3 against R. solani in the wild types T3, T5, S1 and S6,respectively. The growth of T. harzianum isolates (estimated as colony diameter) was significantly increased in all T. harzianum mutants except MT3 and MD5 mutants, CMCase activity was increased from 13.2, 16.2, 10 and 15.8 U/ml / mg protein in the wild isolates T3, T5, S1 and S6 to 18.6, 20.3, 17.7 and 22.5 U/ml / mg protein in the mutants MT3, MT5, MS1 and MS6, respectively. Chitinase activity was also increased in these mutants to 88.4,132.3,86.1 and 136.7 U/ml / mg protein, compared to 82.7, 93.2, 74.5 and 103.2 U/ml / mg protein in their wild, respectively. As comparison between wild types and mutants, the maximum growth was 5.2 and 4.8 cm (as colonies diameters) by MT5 in present of 25% of the recommended field rate of Topsin and Benomyl, compared to 3.3 and 2.2 cm in the wild type T5, respectively, followed by MS6,in which, the maximum growth in this mutant was 4.8 and 4.2 cm in the same concentration of these two fungicides, compared to 3.4 and 2.5 cm in the wild type S6, respectively. According to these results, the mutants MT5 and MS6 developed from UV-irradiation treatment, showed as promising T. harzianum mutants through their antagonistic activity (at mycoparasitism level) , fast growth, higher  CMCase and chitinase activity and growth in 25% of the recommended field rate of Elsa , 25 and 50% of the recommended field rate of Diathen and Mizab and all concentrations of Topsin and Benomyl with complete inhibition of pathogenic fungi F. oxysporum and R. solani.","PeriodicalId":23142,"journal":{"name":"Tikrit Journal of Pure Science","volume":"28 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-02-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"85181149","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}