Tikrit Journal of Pure Science最新文献_第8页

Development Modified Conjugate Gradiente Algorithm 改进的共轭梯度算法

Tikrit Journal of Pure Science Pub Date : 2023-02-10 DOI: 10.25130/tjps.v20i5.1254

Abbas H. Taqi, Amal N. Shaker

引用次数: 1

Study Optical Properties of (GA) Polysaccharide/Polyvinyl alcohol thin films 研究(GA)多糖/聚乙烯醇薄膜的光学性质

Tikrit Journal of Pure Science Pub Date : 2023-02-10 DOI: 10.25130/tjps.v20i4.1223

Mohanad Qader Kareem

引用次数: 0

Study on Fuzzy-Clustering Methods in Fuzzy Time Series Forecasting with Application 模糊聚类方法在模糊时间序列预测中的应用研究

Tikrit Journal of Pure Science Pub Date : 2023-02-10 DOI: 10.25130/tjps.v20i5.1253

Azher Abbas mohammad Ayad hammad, Mohammed Taha A. AL-gan'nam, KHalaf AL-loheby

引用次数: 0

quasi-normal Operator of order n n阶的拟正规算子

Tikrit Journal of Pure Science Pub Date : 2023-02-10 DOI: 10.25130/tjps.v20i4.1231

Laith K. Shaakir, Saad S. Marai

引用次数: 0

Swarming motility Patterns of Pseudomonas aeruginosa isolated from Otitis media 中耳炎中铜绿假单胞菌的群体运动模式

Tikrit Journal of Pure Science Pub Date : 2023-02-10 DOI: 10.25130/tjps.v20i4.1208

Ibraheem A. Latif

{"title":"Swarming motility Patterns of Pseudomonas aeruginosa isolated from Otitis media","authors":"Ibraheem A. Latif","doi":"10.25130/tjps.v20i4.1208","DOIUrl":"https://doi.org/10.25130/tjps.v20i4.1208","url":null,"abstract":"Pseudomonas aeruginosa presents three types of motility: swimming , twitching and swarming. The latter is characterized by rapid and coordinated group movement over a semisolid (viscous) surface resulting from morphological differentiation and intercellular interactions. A striking feature of P. aeruginosa swarming motility is the formation of migrating tendrils producing colonies with complex fractal-like patterns. In this study we reported an evidence that P. aeruginosa can spread on semisolid surfaces and expose swarming motility and to investigate the swarming motility patterns of these bacteria isolating from Otitis media, we culturing thirty clinical isolations of these bacterium on the swarming agar plate containing 0.5% agar. Our results reveals that 12 (40%) of studied isolates were detected dendritic swarming pattern , and 18 (60%) of these isolates were ring swarming pattern, besides that seven of P. aeruginosa total isolates were able to reveal both patterns of swarming motility when sub cultured on new swarming agar media, the results showed that the site of bacteria isolation don't influence and determine a swarming motility patterns of this bacteria, where, there are many studies on the same bacteria isolated from different infection sites which show the same swarming motility patterns according to this study. However, the mechanisms responsible for the dendritic and ring swarming patterns are largely unknown. Swarming motility may be an important factor in the pathogenesis of P. aeruginosa. ","PeriodicalId":23142,"journal":{"name":"Tikrit Journal of Pure Science","volume":"68 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-02-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"83874588","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: 2

Study the Mechanical Properties of (Al-Cu-Mg) Matrix Composites Reinforced by Alumina Particles 氧化铝颗粒增强(Al-Cu-Mg)基复合材料力学性能研究

Tikrit Journal of Pure Science Pub Date : 2023-02-10 DOI: 10.25130/tjps.v20i3.1199

Abdullah M. Ali

{"title":"Study the Mechanical Properties of (Al-Cu-Mg) Matrix Composites Reinforced by Alumina Particles","authors":"Abdullah M. Ali","doi":"10.25130/tjps.v20i3.1199","DOIUrl":"https://doi.org/10.25130/tjps.v20i3.1199","url":null,"abstract":"The aim of the present research is studying the mechanical properties of composites matrix fabricated of aluminum (Al-4.5%Cu-1.5%Mg) by cast and to proceeding the heat treatment solution from different temperatures 500oC, 525oC and 550oC for different times 2hr and 4hr, and then proceeding the requil hardness (HBR), Therefore we conducted the optimum value from the alloy basic (A) at the temperature 550oC for 6hr time. \u0000Also we prepared the matrix composite reinforced by alumina (Al2O3) with different percentage weight (1.5%-2.5%) and three different particles sizes (75µm≥63µm≥53µm≥0.1µm) which named as (A1, A2, B1, B2, C1, C2) according to their weight and size percentages, and then proceeding the heat treatment solution and official ageing about them at the temperature degree 550oC for 2hr and4hr. \u0000Mechanical tests like hardness and Tensile resistance were conducted all of them reached that the composite material (A2) in which there weight and size percentages are 2.5% and ≥0.1µm have upper values of these test's, accordingly we concluded that the reduce particles means increased its rigidity, toughness and solidity. \u0000Finally the microstructures tests shows that the prepared composites materials have small size as compared with microstructure of the basic cast alloys and the distribution of alumina particles was fairly homogeneous in the basic allot, also we showed that the heat treatment solutions and official ageing are affected at these composite materials and alloys.","PeriodicalId":23142,"journal":{"name":"Tikrit Journal of Pure Science","volume":"1 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-02-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"83944292","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

Determination The Infertility by Impacts of Alpha Emitters on Women Urine 用α发射体对女性尿液的影响测定不孕症

Tikrit Journal of Pure Science Pub Date : 2023-02-10 DOI: 10.25130/tjps.v20i4.1219

Najeba F. Salih, Mohamad S. Jaafar, Ammar A. Battawy

引用次数: 0

Enteric Protozoal Infections among Children with Cancers Receiving Chemotherapy 接受化疗的癌症儿童肠道原虫感染

Tikrit Journal of Pure Science Pub Date : 2023-02-10 DOI: 10.25130/tjps.v20i4.1205

Zainab K. khaleel, Abdul Salam M. Al-Mukhtar

{"title":"Enteric Protozoal Infections among Children with Cancers Receiving Chemotherapy","authors":"Zainab K. khaleel, Abdul Salam M. Al-Mukhtar","doi":"10.25130/tjps.v20i4.1205","DOIUrl":"https://doi.org/10.25130/tjps.v20i4.1205","url":null,"abstract":"Objectives: To detect enteric protozoal species in stool samples of children affected by malignancies who are receiving chemotherapy compared to healthy children and to investigate differences in the infection rates among different cancer types. \u0000Materials and Methods: This study included 100 children diagnosed with malignancy under chemotherapy attended Ibn-Al-Atheer Teaching Hospital during the period from December 2013 to June 2014. The study also included 50 apparently healthy children as a control group who were age and gender matched to the cancer patients. Children were already diagnosed as having malignant disease by consultant oncologists and receiving chemotherapy. A Questionnaire Form was completed for each child. Stool samples were taken from patients and controls to detect protozoal infections. The stool was tested by direct wet mount preparation, iodine staining, and concentration methods, hot modified Ziehl-Neelson staining method was also used to detect the acid-fast oocysts of Cryptosporidium. \u0000Results: Enteric protozoal infection was detected in 60 (60%) of patients compared to 5(10%) of controls (p<0.05). Four protozoal species were observed among patients included G. lamblia representing (24%), C. parvum (19%), E. histolytica/E. dispar (5%), and B. species (5%). Whereas in the control group, included G. lamblia (6%), C. parvum (2%), and B. species (2%). The highest infection rate was found among children with lymphoma (77.27%), followed by (62.26%) and (40%) among patients with leukemia and solid tumors, respectively (p>0.05). \u0000Conclusions: The incidence of enteric protozoal infections is higher among cancer children than healthy group and dominates by Giardia lamblia and Cryptosporidium parvum, but other species including E. histolytica/ E. dispar and B. hominis are also found. Patients with lymphohematopoietic malignancies show the highest infection rates.","PeriodicalId":23142,"journal":{"name":"Tikrit Journal of Pure Science","volume":"158 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-02-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"86635952","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

Study the Serum IL-6 Level between Rheumatoid Arthritis Patients and Control 类风湿关节炎患者与对照组血清IL-6水平的研究

Tikrit Journal of Pure Science Pub Date : 2023-02-10 DOI: 10.25130/tjps.v20i4.1210

Semaa Abdulrahman Shaban

引用次数: 1

Doping Effect ((COCl2.6H2O) & (CuCl2.6H2O))(2%)w/v on Optical Energy gap of (GA/PVA) composite films 掺杂((COCl2.6H2O) & (CuCl2.6H2O))(2%)w/v对(GA/PVA)复合薄膜光能隙的影响

Tikrit Journal of Pure Science Pub Date : 2023-02-10 DOI: 10.25130/tjps.v20i4.1222

Mohanad Qader Kareem, Suzan Abd-allah Hassan, Maad Mohammed Ameen

引用次数: 0