Al-Kitab Journal for Pure Sciences最新文献_第10页

The Comparison of Retention between Hot Curing andFluid Denture Base Acrylic Resin(In Vivo) 热固化与液体基托丙烯酸树脂固位的体内比较

Al-Kitab Journal for Pure Sciences Pub Date : 2018-12-30 DOI: 10.32441/kjps.02.02.p10

Bestun Akram, R. Hasan

{"title":"The Comparison of Retention between Hot Curing and\u0000Fluid Denture Base Acrylic Resin\u0000(In Vivo)","authors":"Bestun Akram, R. Hasan","doi":"10.32441/kjps.02.02.p10","DOIUrl":"https://doi.org/10.32441/kjps.02.02.p10","url":null,"abstract":"Adequate retention is a basic requirement for the acceptance of complete denture. The aim of this study was to evaluate the retention quality of fluid denture base materials and compare it with conventional acrylic denture base materials Method: Sixteen edentulous male patients with an age 45-60 years participated in the study. For each patient two denture bases were constructed, one of them made from fluid denture base\u0000materials and the other made from hot acrylic denture base materials. A specially designed strain gauge measuring device was used to measure the force required to dislodge the two dentures from basal seats. Six measurements of retention of newly inserted denture base were recorded for each patient (three for maxillary acrylic denture base and three for maxillary fluid denture base). Results: The results of the retention test showed that the fluid denture base materials required more force in order to dislodge denture than the heat cure denture base materials, which means a significant improvement in retention quality obtained by fluid denture base materials. Conclusions: It has appeared that the fluid acrylic denture base materials produce denture base\u0000material with excellent retentive efficiency to the underlying tissue when compared to\u0000conventional denture base materials.","PeriodicalId":7451,"journal":{"name":"Al-Kitab Journal for Pure Sciences","volume":"76 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2018-12-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"89141735","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

Effect of Addition Of Zirconium Oxide Nanoparticles onFlexural Strength and Porosity of Heat Cure AcrylicResin 纳米氧化锆的加入对热固化丙烯酸树脂抗弯强度和孔隙率的影响

Al-Kitab Journal for Pure Sciences Pub Date : 2018-12-30 DOI: 10.32441/kjps.02.02.p7

Ranj A. Omer, Fahd S. Ikram

{"title":"Effect of Addition Of Zirconium Oxide Nanoparticles on\u0000Flexural Strength and Porosity of Heat Cure Acrylic\u0000Resin","authors":"Ranj A. Omer, Fahd S. Ikram","doi":"10.32441/kjps.02.02.p7","DOIUrl":"https://doi.org/10.32441/kjps.02.02.p7","url":null,"abstract":"Heat cure denture base is the most commonly used material for fabrication of removable prosthesis to the present day. However difficulties persist in fabrication of satisfactory prosthesis due to poor mechanical properties which have resulted in frequent repairs in dental practice. The present study is aimed to investigate the effect of Zirconium oxide nanoparticles (ZrO2NPs) on flexural strength and porosity of denture base and its correlation. X-ray diffraction (XRD) was used to check the purity of NPs. NPs was dispersed at 1%, 3% and 5% by weight to the monomer of methyl methacrylate with aid of probe sonicator. In addition, Scanning Electron Microscope (SEM) was used to observe agglomeration of particles within the acrylic. The results revealed significant flexural strength difference (p<0.05) between each concentration of ZrO2NPs. The analysis showed 17% and 11% reduction for 1% and 3% ZrO2NPs respectively while 5% caused a drastic reduction by 32% in reference to control. In regards to porosity, the results present no statistically significant difference among the concentrations in contrast to control. Pearson correlation showed strong and a negative relation (-0.83) between flexural strength and porosity. However, the results was not statistically significant (p=0.369). Within the limitations of this study, it can be concluded that the addition of ZrO2 caused reduction in flexural strength for all concentrations added. While it caused non-significant effect on porosity of acrylic. suitable additive to enhance the properties of PMMA.","PeriodicalId":7451,"journal":{"name":"Al-Kitab Journal for Pure Sciences","volume":"326 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2018-12-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"77123165","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

A Hybrid Algorithm Between the Artificial ImmunologicalNetwork and the ANFIS Technique with Application 人工免疫网络与ANFIS技术的混合算法及其应用

Al-Kitab Journal for Pure Sciences Pub Date : 2018-12-30 DOI: 10.32441/kjps.02.02.p22

Omar S. Kasim, Israa Alkhayyat

引用次数: 0

Candida spp Complications in Acute Myeloid Leukemia Patients in Erbil City 埃尔比勒市急性髓系白血病患者念珠菌并发症

Al-Kitab Journal for Pure Sciences Pub Date : 2018-12-30 DOI: 10.32441/kjps.02.02.p4

P. A. Hamsaeed, A. Muhammad

{"title":"Candida spp Complications in Acute Myeloid Leukemia Patients in Erbil City","authors":"P. A. Hamsaeed, A. Muhammad","doi":"10.32441/kjps.02.02.p4","DOIUrl":"https://doi.org/10.32441/kjps.02.02.p4","url":null,"abstract":"This study has been carried out in Erbil City -Iraq, 30 patients were diagnosis by flow\u0000cytometry as AML which they were admitted to Nanakaly Hospital for Blood Disease and\u0000submitted to chemotherapy. Number of adults/children 22 (73.3%) / 8 (26.7%), female /\u0000male 13 (43.3%) / 17(56.7%). Only 20 (66.7%) patients were smoker. The highest number\u0000was subtyping M4 10 (33.3%) patients, followed by M1 7(23.3%), M3 6(20%), M2 were\u00003(10%) patients. M5 and M6 were 2 (6.7%). Ten candida spp isolates before induction phase\u0000chemotherapy show 9(90%) C.albicans, 1(10%) C. lusitaniae, and from 32 isolates after\u0000induction phase chemotherapy, 17(53.1%) C.albicans, 7(21.9%) C. lusitaniae, and 8(25%)\u0000C.famata. According to the site of infection, before starting chemotherapy 8(88.9%) C.\u0000albicans isolates were in the oral cavity and 1(11.1%) on the skin, while C. lusitaniae was 1 (100%) in oral cavity only. While after chemotherapy 12(70.6%) C.albicans in the oral\u0000cavity and 5(29.4%) on the skin, C. lusitaniae was 2 (28.6%) in the oral cavity and 5(71.4%) on the skin, while all C. famata was 8 (100%) on the skin\u0000The immunophenotype shows that the number and percentage of patients which the myeloid cells expressed cyMPO was 27(90) with mean percentage of positivity 59.38, while all patients expressed CD33 and CD13 on their blast cell 30(100) with a mean percentage of positivity 59.81 and 30.83 respectively.","PeriodicalId":7451,"journal":{"name":"Al-Kitab Journal for Pure Sciences","volume":"68 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2018-12-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"85799173","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

Environmental Pollution of Cellular Mobile Base Stationin Populated Areas 人口密集地区蜂窝移动基站的环境污染

Al-Kitab Journal for Pure Sciences Pub Date : 2018-12-30 DOI: 10.32441/kjps.02.02.p5

Radhi Isa Sahan, Haider Easa, A. Sallomi

引用次数: 0

An Enhancement of Simultaneous Localization and Mapping Model Using Artificial Neural Networks 基于人工神经网络的同步定位与映射模型的改进

Al-Kitab Journal for Pure Sciences Pub Date : 2018-12-30 DOI: 10.32441/kjps.02.02.p3

Musa A. Hameed

引用次数: 0

The Effect of Denture Cleansers on Color Stability, Water Sorption and Solubility of Stained Denture Base Materials 义齿洗洁剂对染色义齿基托材料颜色稳定性、吸水性和溶解度的影响

Al-Kitab Journal for Pure Sciences Pub Date : 2018-12-30 DOI: 10.32441/kjps.02.02.p11

Mahabad Saleh, S. Salem

{"title":"The Effect of Denture Cleansers on Color Stability, Water Sorption and Solubility of Stained Denture Base Materials","authors":"Mahabad Saleh, S. Salem","doi":"10.32441/kjps.02.02.p11","DOIUrl":"https://doi.org/10.32441/kjps.02.02.p11","url":null,"abstract":"Background and Objectives: Denture cleanser is the most widely used method by the patients to maintain clean and healthy dentures but the prolonged use of such cleansers may affect the properties of the denture. The present study was carried out to evaluate the effect of three prepared denture cleansers which were the 4% citric acid, 4% tartaric acid, and 4% oxalic acid in addition to the Protefix a commercially available denture cleansers, on some mechanical and physical properties (color stability, water sorption, and solubility) of acrylic resin (Stellon QC-20) and flexible nylon (Vaplast) denture base materials after immersion in tea solution. Methods: One hundred specimens (100) were prepared in two equal major groups: acrylic resin and Valplast. For each test of the physical and mechanical properties, 50 specimens were prepared, 25 from acrylic resin and 25 from Valplast. Later on, divided into five groups, one group used as a control and immersed in distilled water, and remaining 4 groups used as test groups; by immersing in one of the denture cleansers after staining in tea solutions for 10 days. The effect of denture cleansers on the properties was studied and compared with the control group. Results: Visual examination method showed no color changes for acrylic and slight color change for valplast specimens. Valplast specimens showed higher water sorption and solubility than acrylic. Conclusions: The findings showed that the 4 denture cleansers were equally effective, and did not cause significant alteration in the tested properties. Except acrylic specimens immersed in oxalic acid showed less color stability.","PeriodicalId":7451,"journal":{"name":"Al-Kitab Journal for Pure Sciences","volume":"1 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2018-12-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"88993350","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

Efficient Performance Technical Selection of PositiveBuck-Boost Converter 正降压变换器的高效性能技术选择

Al-Kitab Journal for Pure Sciences Pub Date : 2018-12-30 DOI: 10.32441/kjps.02.02.p2

A. Abbas, Abadal-Salam Hussain

引用次数: 0

Cenomanian-Early Campanian Carbonate ReservoirRocks of Northwestern Iraq: Diagenesis and PorosityDevelopment 伊拉克西北部塞诺曼—早坎帕世碳酸盐岩储层成岩作用与孔隙发育

Al-Kitab Journal for Pure Sciences Pub Date : 2018-12-30 DOI: 10.32441/kjps.02.02.p1

M. Al-Haj, A. Al‐Juboury, A. Al-hadidy, D. Hassan

{"title":"Cenomanian-Early Campanian Carbonate Reservoir\u0000Rocks of Northwestern Iraq: Diagenesis and Porosity\u0000Development","authors":"M. Al-Haj, A. Al‐Juboury, A. Al-hadidy, D. Hassan","doi":"10.32441/kjps.02.02.p1","DOIUrl":"https://doi.org/10.32441/kjps.02.02.p1","url":null,"abstract":"The present work focuses on the upper Cretaceous (Cenomanian-early Campanian)\u0000carbonate successions in selected wells from northwestern Iraq. These successions are\u0000represented by Gir Bir (Cenomanian-early Turonian), Wajna (late Santonian) and Mushorah (early Campanian) Formations. The succession has affected by early burial near-surface, unconformity-related and deep burial diagenesis represented by cementation, neomorphism, dolomitization, dedolomitization, silicification, authigenesis of glauconite and pyrite, compaction, micritization, solution and porosity formation. The common porosity types are intergranular, fenestral, intercrystalline, moldic, vuggy, channel and fracture. Three porosity zones (I, II, and III) are identified depending on variation in gamma ray which reflects their shale content. The upper part of zone (II) is highly porous and regarded on the main reservoir unit in the middle and upper parts of the Gir Bir Formation. Fracture and moldic and vuggy dissolution features in addition to karstic and fissure features are responsible for the porosity increase in the fractured reservoir unit.","PeriodicalId":7451,"journal":{"name":"Al-Kitab Journal for Pure Sciences","volume":"1 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2018-12-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"84785198","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

Modified Method for Minimizing Current Distortion of A Single Phase Bridge Rectifier Based on Current Injection 基于电流注入的减小单相桥式整流器电流畸变的改进方法

Al-Kitab Journal for Pure Sciences Pub Date : 2018-10-10 DOI: 10.32441/KJPS.V2I1.141

Aasef Saleh Al-hyali, Hussien Zynal, A. Mahmood

引用次数: 0