Journal of Biomolecular Techniques最新文献

{"title":"The Effect of Electroplated Ni Nanocoating on Fatigue Life of 1020 AISI Low Carbon Steel","authors":"None Israa Akram Hantoosh, Aliaksandr Skaskevich","doi":"10.51173/jt.v5i3.1608","DOIUrl":"https://doi.org/10.51173/jt.v5i3.1608","url":null,"abstract":"Low carbon steel 1020 AISI has been selected in this study to show the influence of Ni Nano coating on fatigue life of this metal under fatigue loading at room temperature with a stress ratio R= -1. The prepared specimens are exposed to electroplated process using Nano nickel with 40 nm at diverse situations to improve the fatigue limit of metal. (SCHENCK PUNN) rotating bending fatigue test, hardness, tensile strength, microstructure, surface roughness and SEM, XRD diffraction tests have been completed for base metal and electroplating treated metal. The experimental results indicate that Ni nano coating by electroplating improve the fatigue life at due to steel substrates are typically polished mechanically and chemically before deposition to enhance the fatigue properties and nano nickel have fair distribution on steel surface.","PeriodicalId":39617,"journal":{"name":"Journal of Biomolecular Techniques","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2023-09-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"136344736","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":"Effect of Different Polishing Systems on Surface Roughness of IPS Empress Ceramic Materials","authors":"Sara Abdulbasit Turki Turki, Marwah Hussein Abdulsattar Abdulsattar, None Zahraa Nazar Alwahab","doi":"10.51173/jt.v5i3.1074","DOIUrl":"https://doi.org/10.51173/jt.v5i3.1074","url":null,"abstract":"For evaluation and comparison of the effect of surface treatment (glazings, polishing with rubber wheel and diamond paste, and polishing with rubber wheel) on pressable porcelain (IPS Emax porcelain) surface roughness in comparison with non-treated surface. Forty-disc shaped specimens of baseplate wax with 10 mm diameter and 2 mm thickness have been prepared. They were invested and subjected to lost wax technique in fabricate the pressable ceramic. Following pressing, they have been divided randomly into four groups: Group A: no surface treatments, Group B: glazing (paste, HT, Ivoclar, Vivadent, Germany) glazing (paste, HT, Ivoclar, Vivadent, Germany), Group C: polishing with burs (DIAPRO TWIST, EVE, GmbH, Germany), and Group D: polishing with burs (DIAPRO TWIST, EVE, GmbH, Germany) and diamond paste (All in one, RENFERT, GmbH, Germany). For each specimen, examination of mean roughness profile (Ra) was performed for total surface roughness description. Specimens were stabilized with the acrylic holder used previously in the initial polishing procedure. A contact stylus profilometer was used to conduct a quantitative measurement of surface roughness in micrometers (µm) for all specimens. The highest (Ra) value was for control group (1.9520), whereas the lowest values were in group D (Polishing by rubber wheel .4670. One-way ANOVA test showed a high significant value at (P <. 000), and LSD test showed a high significant value at (P <. 000) when comparison was established among groups. From the results of the current study, we can conclude the following; polishing procedure for the surface of pressable ceramic with or without diamond paste produced better surface smoothness than glazed surface and non-treated surface and polishing with burs could be an alternative to glazing to provide smooth surface.","PeriodicalId":39617,"journal":{"name":"Journal of Biomolecular Techniques","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2023-09-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"136344370","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":"تأثير تِقانة الرقابة المالية في بيئة الأعمال المصرفية: دراسة ميدانية في عينة من المصارف العراقية","authors":"None Riam Khalil Khudair, None Ibtisam Ali Hussein, None Bader S. S. Hamdan","doi":"10.51173/jt.v5i3.753","DOIUrl":"https://doi.org/10.51173/jt.v5i3.753","url":null,"abstract":"يهدف البحث الى تحديد مستوى تطبيق تقنيات الرقابة المالية في القطاع المصرفي العراقي وأهمية تطبيقها لضمان سير العمليات المصرفية بالشكل الصحيح وتوفير الأمان لحسابات الزبائن وتأثير هذه التقنيات في تطوير البيئة المصرفية، تجسدت مشكلة البحث في حاجة المصارف الى تطوير تقنيات الرقابة الموجودة فيها الى جانب تطوير استراتيجيات العمل المتبعة وتوجيه المؤسسات المالية العراقية الى هذه التقنيات لتكون داعمة للأساليب الإدارية ومواكبة الاتمتة بغية الاستفادة من خدماتها لتحقيق ميزة تنافسية في عالم سريع التغيير وعلى الاخص داخل بيئة الأعمال المصرفية ولتحقيق اهداف البحث تم اعتماد المنهج الوصفي التحليلي وتم استخدام الاستبانة كأداة لجمع البيانات، إذ تضمنت 42 فقرة، وقد شملت الدراسة 7 مصارف منها مصرفين حكوميين و5 مصارف خاصة وذلك بالاعتماد على عينة من المديرين ورؤساء الاقسام ومسؤولي الشعب والوحدات والموظفين في الاقسام المستهدفة في الدراسة وبلغ عددها 147 من العاملين في تلك المصارف، اذ يقترح البحث تطوير بيئة الأعمال المصرفية عن طريق ادخال تقنيات رقابة مالية تساهم في النهوض بواقع المصارف وتطوير الاداء المالي عن طريق تقليل الجهد والوقت وتوفير الآمان ومن ثم انعكاسها على رضا الزبائن وتحقيق ميزة تنافسية، وتوصلت الدراسة لمجموعة من النتائج باستخدام البرنامج الإحصائي SPSS.v.24 والاساليب الإحصائية (المتوسط الحسابي، الانحراف المعياري، معامل الاختلاف، معامل الارتباط سبيرمان، الانحدار الخطي البسيط ) كان أهمها وجود علاقة ارتباط معنوية بين تِقانة الرقابة المصرفية وبيئة الأعمال المصرفية، وكذلك وجود علاقة تأثير لتِقانة الرقابة المالية في بيئة الأعمال المصرفية، اما اهم التوصيات فكانت ضرورة توفير انظمة وتقنيات رقابية الكترونية على الانشطة والعمليات المصرفية جميعاً بما يضمن تحقيق الحماية والأمان والسيطرة للعمليات جميعاً وعلى فروع المصارف كلها.","PeriodicalId":39617,"journal":{"name":"Journal of Biomolecular Techniques","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2023-09-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"136344585","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":"The Impact of Digital Transformation in Enhancing Operational Performance: An Applied Study in the Kirkuk Electricity Distribution Branch","authors":"None Marwan Fawzi Takriti, Ghalia Nassreddine, Joumana Younis, Tamima ElHassan","doi":"10.51173/jt.v5i3.1525","DOIUrl":"https://doi.org/10.51173/jt.v5i3.1525","url":null,"abstract":"Digital transformation is the procedure that integrates recent technologies in organizations to push essential change, improve efficiency, and facilitate work for employees. This paper studies the impact of digital transformation on the operational performance of the Kirkuk Electricity Distribution Branch. Four dimensions of digital transformation will be considered: infrastructure, skills, environment, and digital technology. A descriptive analytical methodology was adopted to examine this impact. A questionnaire of 27 questions was built and distributed to the Kirkuk Electricity Distribution Branch employees. The answers from a convenience sample of 328 male and female employees were collected. These answers were examined using SPSS software and statically tools. The result shows a significant impact of the digital transformation on the operational performance of the Kirkuk Electricity Distribution Branch.","PeriodicalId":39617,"journal":{"name":"Journal of Biomolecular Techniques","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2023-09-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"136344581","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":"دراسة تجريبية لتأثير أهم العوامل الأساسية في استخلاص الزيت من بذور نخيل التمر","authors":"None Asem Hassan Mohammed","doi":"10.51173/jt.v5i3.909","DOIUrl":"https://doi.org/10.51173/jt.v5i3.909","url":null,"abstract":"يركز هذا البحث على دراسة تأثير العوامل الثلاثة الأكثر تأثيراً على استخلاص الزيت من مسحوق بذور نخيل التمر باستخدام جهاز السكسوليت (Soxhlet) المختبري الذي يتم فيه الحصول على أعلى محصول من الزيت. المتغيرات التي تمت دراستها هي نوع المذيب وحجم حبيبات مسحوق بذور التمر والمدة الزمنية للاستخلاص. على وفق لذلك، يمكن التأكيد على أن الهكسان هو أكثر المذيبات كفاءة التي يمكن أن تنتج أقصى عائد من الزيت المستخرج الذي كان بحدود 9 غرام لكل 100 غرام من مسحوق النوى الجاف. أيضًا، كانت أحجام حبيبات المسحوق الاقل من 0.5 ملم تعطي أقصى عائداً للزيت. أخيرًا، ثلاث ساعات من الاستخلاص هي أفضل مدة لاستخراج أعلى إنتاج للزيت.","PeriodicalId":39617,"journal":{"name":"Journal of Biomolecular Techniques","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2023-09-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"136344738","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 Effect of Nano and Micro Hydroxyapatite Particles on the Impact Strength of Acrylic Resin: In Vitro Study","authors":"None Ahmed Abdulameer Abduljabbar, None Firas Abd kati, None Ayad I. Haddad, None Ihtesham Rehman","doi":"10.51173/jt.v5i3.1476","DOIUrl":"https://doi.org/10.51173/jt.v5i3.1476","url":null,"abstract":"Poly (methylmethacrylate) is considered the basis material for a denture base. However, such substance has some drawbacks such as poor impact resistance, which is thought to be the primary cause of fracture of denture base resins. The purpose of the study was to determine how Nano and Micro hydroxyapatite particles affected the impact strength of acrylic resin. Thirty specimens were constructed of heat-cured acrylic resin and were divided into three groups: Ten specimens for the control, 10 for 1%nano hydroxyapatite, and 10 for micro hydroxyapatite. Acrylic samples were subjected to an impact strength test via a Charpy-type. Data were then analysed using SPSS v20. The ANOVA test was used for comparison among the groups. Highly statistically significant differences among all studied groups (P-value <0.0001). Both 5% Micro hydroxyapatite and 1% Nano hydroxyapatite had a higher mean value than the control. Incorporating Nano and Micro hydroxyapatite into PMMA improved the impact strength of acrylic resins.","PeriodicalId":39617,"journal":{"name":"Journal of Biomolecular Techniques","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2023-09-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"136344578","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":"Assessment of Vitamin D3 Level Among a Sample of Type 2 Diabetic Patients Attending Diabetes and Endocrinology Center in Al-Hilla City","authors":"None Ahmed Mahdi Habeeb, None Atta Ah Mousa Al-Sarray, None Ali Hussein Al Hafidh, None Rafah Sabah Barrak, None Afraa Brahim","doi":"10.51173/jt.v5i3.1452","DOIUrl":"https://doi.org/10.51173/jt.v5i3.1452","url":null,"abstract":"Vitamin D is found in foods in two primary forms: cholecalciferol (vitamin D3) and ergocalciferol (vitamin D2), with vitamin D3 being a fat-soluble vitamin. that is necessary for calcium homeostasis and the maintenance of proper function in a variety of tissues. Humans get vitamin D from their diets or from being exposed to ultraviolet B radiation from the sun. Aside from its well-known effects on bone health, vitamin D has been hypothesized to play a role in various disease states and health situations, such as cardiovascular disease and type 2 diabetes. To assess vitamin D3 concentration in patients with type 2 diabetes, using the Vitamin D Total III kit on the Cobas E 411 device. A total of 300 people were recruited, with 150 people suffering from type 2 diabetes serving as cases and 150 healthy volunteers of the same gender and age being used as the control group. Both genders were represented, with an age group between 30 – 79 years. The collection of data lasts for five months, beginning Started in November 2022 to April 2023. The data was analyzed with the readily available statistical package SPSS-28, and Chi-square tests were used to evaluate the relationship among vitamin D, T2DM, and control. Data were provided in simple frequency, percentage, mean, standard deviation, and range measures. Type 2 diabetes patients' mean ± SD ages were 55.4 ± 10.1, while controls had a mean ± SD of age of 55.3 ± 10.0. the sociodemographic features of T2DM and participant control. Shows A statistically significant association was found in the variables of age groups, school level (P = 0.0001), and marital status (P = 0.008). The BMI: mean ± SD (29.69 ± 5.14) of T2DM was higher than the BMI: mean ± SD (24.41 ± 1.95) of controls, as well as the waist-to-height ratio, which showed that the mean ± SD (0.527 ± 0.046) of T2DM was greater than the control mean ± SD (0.483 ± 0.019) at level (P = 0.0001); T2DM patients had deficient and insufficient vitamin D3 levels (38.7% and 33.3%, respectively), whereas controls had deficient and insufficient vitamin D3 levels (28.7% and 30.0%, respectively). It was found that there is a significant difference between low vitamin D3 levels and individuals with type 2 diabetes, and A lack of vitamin D3 is related to an increased risk of developing T2DM.","PeriodicalId":39617,"journal":{"name":"Journal of Biomolecular Techniques","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2023-09-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"136344580","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":"Measuring and Analyzing the Reality of a Pivotal Application (the Educational Institution's Strategy and Governance and Management) According to the Iraqi Institutional Accreditation Standards: A Comparative Study","authors":"Dhuha Razak Apd, None Ali Abdel Karim Al-Saffar, None Marwa Mustaph Al-Roubaie","doi":"10.51173/jt.v5i3.608","DOIUrl":"https://doi.org/10.51173/jt.v5i3.608","url":null,"abstract":"The research aims to identify the possibility of measuring and analyzing the reality of the application of institutional accreditation standards in the two surveyed universities (Al-Karkh Science and Al-Farahidi Private University). The problem of the study is examining the applied reality of the axes of institutional accreditation in Iraqi public and private universities. Determining the gap between the actual performance of the two universities surveyed and a pivotal application (the strategy of the educational institution / governance and administration). The study aims to identify the applied reality of the axes of institutional accreditation in Iraqi public and private universities. Narrowing the gap, enhancing strengths and addressing weaknesses by measuring and diagnosing the gap between the actual reality of the performance of the two universities and the application of the pivotal Iraqi institutional accreditation. The checklists that were developed according to the paragraphs of the two axes (indicators), and the use of mathematical equations to analyze and collect the weights of these indicators, and to extract application percentages and gaps (24%, 24%) is lower than the Al-Farahidi Civil University, where the gap for the two axes (33%, 39%) was lower.","PeriodicalId":39617,"journal":{"name":"Journal of Biomolecular Techniques","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2023-09-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"136344587","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":"تشكيل المحفظة المثلى باستخدام الخوارزمية الوراثية","authors":"None Shaylan Kazem Souza, None Shatha Abdel-Hussein Jabr, None Ahmed Talib Abdel Amir, None Bader S. S. Hamdan","doi":"10.51173/jt.v5i3.799","DOIUrl":"https://doi.org/10.51173/jt.v5i3.799","url":null,"abstract":".تهدف هذه الدراسة إلى معالجة مشاكل إدارة مخاطر محفظة استثمارية القائمة على قطاع استراتيجية التنويع، وتسعى بشكل أساس إلى تطبيق الخوارزميات الجينية (GA) لتحسين نموذج ماركويتز (العائد - المخاطرة). مشكلة تحسين المحفظة هي مشكلة متعددة الأهداف تهدف في الوقت نفسه إلى تعظيم العائد المتوقع للمحفظة وتقليل مخاطر المحفظة. الدراسة الحالية هي نهج إرشادي لمشكلة تحسين المحفظة باستخدام تقنية الخوارزميات الجينية. بيانات الدراسة الحالية على عينة من أسعار الأسهم بين 1/01 / 2016-31 / 12/2020 في سوق العراق للأوراق المالية، علاوة على ذلك في محاولة لتقييم فعالية الخوارزميات الجينية لتحسين مستوى المخاطر المثلى.","PeriodicalId":39617,"journal":{"name":"Journal of Biomolecular Techniques","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2023-09-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"136344629","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":"The Effect of Recycled CAD/CAM PEEK Fibers on the Transverse Strength of Repaired Acrylic Resin","authors":"None Maha Kareem Jabbar, None Najwah Yousuf Hameed, None Rusul Khalid Mustafa","doi":"10.51173/jt.v5i3.1740","DOIUrl":"https://doi.org/10.51173/jt.v5i3.1740","url":null,"abstract":"One of the significant advantages of Polyether ether ketone (PEEK) is its ability to bond composite materials. This makes it a versatile material that can be used in a range of dental applications, including as a framework for fixed or removable dental prostheses. The aim of this study is to evaluate the transverse strength of heat-cured acrylic resin after reinforcing repaired material with recycled PEEK fibers obtained from a CAD/CAM machine. After milling, PEEK fibers were collected from the CAM machine. The size of the PEEK fibers was measured by utilizing a Scanning Electron Microscope (SEM); with the particle grit size being 200 µm. Thirty specimens were used and divided into three groups of heat-cured acrylic resins was evaluated. All specimens have been stored at 37°C prior to fracture, and specimens have been then repaired after fracture with an auto-polymerizing acrylic resin using Ivomet. Group A of heat-cured specimens was used as a (control group) and repaired with no additive to the self-cured acrylic repair materials. While group B has been repaired by self-cured acrylic reinforced with of 1%wt. PEEK fibers, group C has been repaired by self-cured acrylic reinforced with the addition of 2%wt. PEEK fiber. There is a difference between groups A and C; however, there is a significant difference at 0.05 when comparing with groups B and C. When compared to (1%wt. PEEK-fiber) and the control group, adding (2%wt. PEEK-fiber) improves the transverse strength of the repaired heat-cured acrylic resins.","PeriodicalId":39617,"journal":{"name":"Journal of Biomolecular Techniques","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2023-09-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"136344579","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}