bluuebunny/crossref_metadata_2025 huggingface dataset:
Industrial Wastewater Treatment in North Gas Company By Using Coagulation – Flocculation Process
Authors: Kamal Sanarya K. , Mohammed Awad E. , Alabdraba Waleed M. , Hamed Hussein H. , Waly Kamaran A.
Published: May 2021

Recently, water pollution considered a major problem that faced the human. Large quantities of water consume in various industrial oil refinery processes, where the wastewater discharged from these processes contains high organic, phosphate, ammonia, nitrite compounds, and toxic substances. Regarding that, making this resource a fresh is a major concern.

 Furthermore, a great attention has been given for the removal of these contaminants discharged by Fenton process combined with coagulation process. Combined Fenton/Coagulation process was used and applied in this study as a novel wastewater treatment to remove Chemical Oxygen Demand (COD), Phosphate (PO4), Ammonia (NH3), Nitrite (NO3) compounds, and turbidity (NTU) from industrial wastewater in North Gas Company (NGC), Iraq. The industrial wastewater used in this study was characterized with 114 mg/L COD ,10.28 mg/L PO4, 4.123 mg/L NH3, 95.6 mg/L NO3, 98 NTU Turbidity. The main goal from this work was to evaluate the performance removal efficiency of combined Fenton/Coagulation process and examine the effect of various operational parameters such as Fenton’s dosages (H2O2, Fe2+), the concentration of coagulant (Alum) on the removal efficiency. The results obtained in this work revealed that maximum removal efficiency of COD, PO4, NH3, NO3, turbidity was 89.43%, 72.94 %, 91.065%, 90.96%, 89.85%, respectively was achieved using Fenton combined with coagulation process at 60 mg/L of Alum and 2.5 Fenton’s mole ratio. Overall it can be established that Combined Fenton/Coagulation process plays an important role in obtaining good results and had better removal efficiency. All the experiments were carried out using jar test apparatus at constant temperature (room temperature).
Studying the Effect of Nano Filler on Epoxy Properties used in storage tank Low Carbon Steel Protection
Authors: Esmael Israa Abdulsatar , Ibraheem Nadia Fakhry , Ahmed Faris Moayed
Published: May 2021

In this study a nano epoxy coating had been prepared to be used for the protection of the internal and external surfaces of storage tank (low carbon steel) from corrosion.   A polymeric coating was reinforced with fillers such as red iron oxide, Zinc phosphate and nano titanium dioxide (TiO2) which have been used as anticorrosion. Pieces from low carbon steel was picked from storage tank and coated with two layers, the first layer was prepared from organic polymer (epoxy) with red iron oxide,  the second layer was prepared from epoxy with (a nano titanium dioxide and  Zinc phosphate).

The fillers weight percentages were (0, 7, 10 and 13 % wt). The nano epoxy coating gave good results in limiting the corrosion, the corrosion rate results show that the best percentage of additives was (13,10 % wt) in salt solution 1.0 %wt   ( NaCl, Na2SO3 and KCl ).The coating samples were immersed for 3  month  at 25 OC in gas oil and cutting oil then was characterized using spectroscopic method (FTIR), physical and chemical tests add to characterization of  particles size was done by SEM. The samples of TiO2 were characterized by XRD and evaluation of corrosion was made by using static potential test.
Investigation of Impact of CeO2 nanoparticles blended in Nano-emulsion on efficiency and exhaust emission of diesel engine
Authors: Hamadi Dr. Adel Sharif , Khidhir Ali Ghufran
Published: May 2021

Cerium oxide (CeO2) nanoparticle was added to prepared water in diesel Nano-emulsion tostudy its effect on exhaust emission and performance of diesel engine characteristics betweenneat diesel, Nano-emulsion and Nano-emulsion+ CeO2. Since water and diesel are immiscible,mixed span and Tween 80 surfactants are used for preparation of stable Nano-emulsion.Central composite design, Response surface method is used for optimization process ofpreparation of Nano-emulsion at optimum suitable condition designed by Design Expertsoftware.Dispersed Water present of Nano size effect directly on diesel fuel characteristics incompression ignition engine, contributes on reduction of NOx and smoke emission and betterthermal efficiency, but accompanied by little increase in HC and CO emission and fuelconsumption.CeO2 nanoparticles at three levels (50, 100 and 150 ppm) to optimize Nano-emulsion addedand mixed by high energy homogenizer. All diesel, Nano-emulsion and Nano-emulsion+ CeO2are examined by Engine run at 400 bar and 1500 rpm with different load.Improvement in reduction fuel consumption and thermal efficiency are obtained. Exhaustemission (NOx, HC and CO) and smoke reduced much more are observed with CeO2nanoparticle.
Optimized Well Construction Cost Estimate in South of Iraqi Fields/ Case Study from Zubair Field
Authors: Hussein Maher Falih , Shabib Ahmed Rahman , Abood Salah Faisal
Published: May 2021

Cost estimation and control is a crucial activity for well engineering and construction. Inaddition to the technical preparation before drilling an oil well, well construction cost is one ofthe essential activities leading to AFE (authorization for expenditure). Recently theprobabilistic method for cost estimate became necessary for understanding the risk anduncertainty of a certain cost range instead of a single (deterministic) value. This work describesthe main types of drilling contracts have been used in Basra oilfields and discusses theprinciples of well construction cost estimate according to those contracts. In addition, itsummarize the relevant cost breakdown for drilling operations. The research also illuminatesthe probabilistic method for effective well cost estimating along with deterministic method. thestudy subdivided the process of well construction into segments for cost tracking, emphasizedthe main aspects influence the well cost and leading to a methodology that can be applied bythe operator for onshore well in the south of Iraqi fields. The methodology used in this workincludes, first, analyzing data from offset wells to facilitate the possible cost out comes, andsecond, subdivide the well construction activities into fixed costs, time dependent and depthdependent costs. A probabilistic model (Monte Carlo simulation) for cost estimating isconstructed using @ Risk software. The results released for risked drilling operation, whichincludes the NPT. While revising the historical cost performances in Zubair field, it has foundthat the best practices and lesson learned of the previous activities has significantly contributedin time and cost reduction of well operation. The findings of this work contributes to improvethe decision-making by managers for best investment, enhance the planning for next activitiesand confident choice of well budget. It also helps to investigate the critical factors and actions

that can be applied on operational and contractual parameters to achieve cost reduction. A casestudy from Zubair field will be presented in order to illuminate the mentioned points.
2017 ) دراسة تحليلية - أثر التغير في أسعار النفط في النمو الاقتصادي في العراق للمدة ( 2005
Authors: طه حسام الدين
Published: May 2021

أصبح للنفط الدور المباشر في إدارة عجلة النمو الاقتصادي، وفي تحريك مشاهد الصراعات العالمية بسبب حاجة العالم المتزايدة من الطاقة التي يوجبها التطور الاجتماعي والاقتصادي والنمو الديموغرافي، الواقع الحالي يحتاج لتحليل قطاع النفط  ودراسة الجوانب إلمختلفة المتعلقة التي يؤثر بها.

يهدف البحث لتحليل التغيرات في أسعار النفط في مؤشرات النمو الاقتصادي في العراق للمدة (2005-2017)، ولقد تم التوصل و بحسب التحليل الاحصائي إلى أن العلاقة بين متوسط سعر برميل النفط العراقي والدخل القومي علاقة طردية ،وبين متوسط سعر برميل النفط العراقي ومتوسط نصيب الفرد من الدخل القومي علاقة ارتباط طردية، وبين متوسط سعر برميل النفط العراقي والناتج المحلي الإجمالي علاقة ارتباط طردية.

وأوصى البحث بتفعيل السياسة المالية في الاقتصاد العراقي عبر تحفيز آليات السياسة الضريبية الكمركية لِما لذلك من أهمية في أغناء الموازنة بمصادر ايرادية متعددة بحيث تعمل آليات السياسة المالية على تحقيق أهداف اقتصادية تتمثل في رفع معدلات المدخرات الخاصة وتحفيز قرارات الاستثمار.
دور التحكيم في تشجيع الاستثمار النفطي
Authors: عبد د سعد حسين
Published: May 2021

تستثمر الشركات التي تعمل في مجال النفط والغاز رؤوس أموال كبيرة، وبالتالي تعد المنازعات التي تظهر في هذاالنشاط من أهم المخاطر التي يجب أخذها بعين الاعتبار في إي مشروع يتعلق بالطاقة الدولية (النفط).إذ يتحتم علىأطراف العلاقة الاستثمارية في مجالي النفط والغاز، ومنذ بداية الصفقة، إدارة تلك المخاطر بشكل واضح، وعليهتحرص أطراف العقد عند صياغة بنوده على وضع آلية لتسوية المنازعات وسواء كانت هذه الأطراف شركات أو أفرادأو حكومات، وخصوصاً إن الشركات الأجنبية لا يكون لديها الرغبة في اللجوء إلى المحاكم الوطنية لعدم الثقة فيحيادية القضاء الوطني. وتحدث المنازعات بين الشركة المستثمرة وبين الدولة المستضيفة عندما تقوم الدولة المستضيفةبأحداث تغييرات كبيرة في شروط الصفقة الأصلية أو عندما تقوم بسحب الاستثمار(الامتياز) الممنوح لأحد الشركاتوسواء كان موضوع العقد تقاسم الإنتاج بينها وبين الدولة المستضيفة أو عقد استخراج أو عقد تقديم خدمات.لكن هل يحقق اللجوء إلى التحكيم في المنازعات المتعلقة بعقود الاستثمار النفطي النجاح المنشود؟ تتطلب الإجابة عنهذا السؤال بحث الموضوع في مبحثين: نبحث في الأول التعريف بالتحكيم، ونخصص الثاني لبحث اتفاق التحكيم فياتفاقيات وعقود استثمار النفط.
تأثير التميز التنظيمي على ممارسات الاستدامة الموجهة نحو الابداع (دراسة تطبيقية في مصفى ذي قار)
Authors: خلف وسن فاضل , عجاج محمد نعيم , السعيدي كرار فاضل خلف , رزاق هدى عقيل
Published: May 2021

يهدف البحث الى التعرف على مدى تأثير التميز التنظيمي على ممارسات الاستدامة الموجهة نحو الابداع في المنظمات. تم تطبيق البحث في مصفى ذي قار وعلى عينة عشوائية من الموظفين العاملين في المصفى تكونت من (200) فرد، واستخدمت استمارة الاستبيان كأداة رئيسية لجمع البيانات اذ تكونت من محورين الأول: التميز التنظيمي  والثاني: ممارسات الاستدامة الموجهة نحو الابداع، وتم تحليل البيانات من خلال البرنامج الاحصائي AMOS وبرنامج SPSS، واعتمد البحث على فرضية رئيسية مفادهما "وجود علاقة ارتباط وتأثير بين التميز التنظيمي و تطبيق ممارسات الاستدامة الموجهة نحو الابداع" وتم قياس متغير التميز التنظيمي من خلال (التميز الإداري، التميز الاستراتيجي، تميز الموظفين، تميز الهيكل التنظيمي)  اما متغير الاستدامة الموجهة نحو ممارسات الابداع تم قياسة من خلال (الاستدامة الموجهة نحو تطوير العمليات و المنتجات، الاستدامة الموجهة نحو تطوير كفاءات الابداع). وتوصل البحث الى عدد من الاستنتاجات ومنها أوضحت نتائج البحث ان المنظمة قيد البحث لديها تصور عن الاستدامة الموجهة نحو ممارسات الابداع فيما يتعلق بتطوير كفاءات جديدة تدعم الابتكار الخضراء في المنظمة وكذلك تعمل المنظمة على اقتناء تكنولوجيات وعمليات مبتكرة وملائمة للبيئة وتسعى المنظمة باستمرار إلى تعزيز المهارات الابتكارية الخضراء في المجالات الرئيسية التي لا تملك فيها تجارب سابقة واخيراً تستكشف المنظمة باستمرار طرقا جديدة مختلفة لفهم توقعات ومتطلبات أصحاب المصلحة الرئيسيين الا ان بعض المجالات تحتاج الى فهم افضل لممارسات التطبيق فيما يتعلق في باستخدام أنظمة إدارة جديدة لإدارة الابتكار البيئي وكذلك إدارة المنظمة في كثير من الأحيان تشارك بنشاط في أنشطة الابتكار البيئي بشكل متوسط وإدارة المنظمة تستثمر نسبة متوسطة من البحث والتطوير في الابتكار البيئي واخيراً غالبا ما تقوم إدارة المنظمة بجمع المعلومات عن اتجاهات الابتكار البيئي. فضلاً عن ذلك وضعت عدد من التوصيات أهمها صياغة استراتيجيات لتنفيذ الاستدامة الموجهة نحو ممارسات الابداع لتعزيز التميز التنظيمي تتلاءم مع خصائص البيئة العراقية ومتطلباتها ويتم بمساعدة القيادة التحويلية الخضراء، والتقنيات الحديثة المتمثلة بالاستدامة الموجهة نحو تطوير العمليات والمنتجات والاستدامة الموجهة نحو تطوير كفاءات الابداع تدعم تعزيز التميز التنظيمي لدى المنظمة قيد البحث وهذا بدورة يسهم في تحقيق الابداع في التميز التنظيمي.
Plum Tree Gums as Local Alternatives for Foreign Drilling Fluid Materials
Authors: Almahdawi Dr. Faleh H. M. , Hussain Dr. Mohammad N. , Jasim Haider Salim
Published: May 2021

A few years ago oil well drilling cost increased due to using modern technique such as equipment   and materials that are used by specialist companies so studies and researches were required to decrease these costs. In this study we tried to find local alternatives for foreign drilling fluid materials that are aimed to decrease oil well drilling cost although the cost of drilling fluid materials reach to 30 % of total materials cost of drilling oil well.

      In the first part of this study seven local materials and it's tested under API Specification 13A for Drilling Fluids Materials were investigated. Plum Tree Gum was succeeded in this test among several other materials as drilling fluid materials. The second part of this study was a comparison between these local alternative and similar foreign materials for same sample to show physical and rheological properties. The third part of this study was tested this local alternative under different values temperature to show effect the temperature on physical and rheological properties of this local alternative. The results approved that; Plum Tree Gum, local alternative, can use as filtration control materials for water based drilling fluid. Also this local alternative increased viscosity as minimal for water based drilling fluids, So it can be used as part alternative for Bentonite to increase viscosity by increasing Yield point and decreasing solids concentration in drilling fluids so it has  positive effect on Rig equipment’s and Pay-zone.   Plum Tree Gum is Ore polymers (plant origin)
Effect of air combustion preheater on furnace efficiency by using refinery simulator
Authors: Almosawi Dr.Yosif J. Kadhem , Alshimmary Warqaa A. Kadhem
Published: May 2021

One of the basic crude oil refining steps is the heat up to high temperature about 3700 C, which is done in the furnace. The balance between fuel and air required to combustion provide an economical and efficient heating.

In this research operating data of heating up the furnace are collected by using an interactive simulator of Drilling System Company (ORTIS) which gives a flexibility of operation cannot be obtained in real furnace, these data are related to find the operation paths under different control system of manual, automatic and working automatic without pre-heating are used .

Using of combustion air preheater, by exchanging heat with the flue gases, leading to increase furnace heating efficiency from 85% to 93% also the fuel supplied to the burners is more less than working without preheater.

As the simulator used in this research very closed to real operating system of furnace which cover all the variables of furnace inside temperatures, excess air analyzer, and fuel gas control and inside pressure control.

The using of interactive simulator is very useful in stating the right operating conditions. The use of pre-heating of combustion air is best economical method to reach heating the crude oil to the required temperature with minimum fuel gas consumption, which directly affects the efficiencies of the furnace in each case.
في حقل اللحيس جنوب العراق Z/1A تقييم أدائية مكمن الزبير/عضو السجيل الأعلى/الوحدة المكمنية بإستخدام طرائق الضغط الشعيري والنفاذية النسبية
Authors: الجناعي هبة منذر شاكر , الشهوان د. موفق فاضل جبر
Published: May 2021

(Lu2, Lu4, Lu8, Lu أجريت الدراسة ل( 241 ) أنموذجا من أللباب الصخري لتكوين الزبير في حقل أللحيس للآبار , 13وإستحصال نتائج الفحوصات البتروفيزيائية (المسامية والنفاذية)، فضلا عن إجراء فحوصات ،Lu14, Lu19, Lu20)اللباب الخاصة(الضغط الشعيري والنفاذية النسبية) ل( 49 ) إنموذجا. قسم تكوين الزبير(عضو السجيل الأعلى) الى أربع وحداتمكمنية مختلفة الإنتاجية(وحدة مكمنية ذات إنتاجية جيدة جدا، وحدة مكمنية ذات إنتاجية جيدة، وحدة مكمنية ذات إنتاجيةمتوسطة، وحدة مكمنية ذات إنتاجية ضعيفة) وأظهرت الدراسة تحسن المواصفات البتروفيزيائية المكمنية بإتجاه شمال وغربالحقل. كما تم تقييم أدائية نظام إزاحة النفط بالماء للوحدتين المكمنيتين(ذات الإنتاجية الجيدة جدا وذات الإنتاجية الجيدة) واللتانتمثلان الوحدتين المكمنيتين الرئيسيتين إذ تبين ان الحاجة لزيادة عمليات الإنتاج ورفع الضغوط المكمنية وتحسين الإستخلاصالنفطي بحاجة الى حقن كميات كبيرة من المياه والذي سيؤدي بدوره الى حدوث الخرق المائي المبكر والتي ستعود بجدوى غيرإقتصادية في عمليات الإنتاج النفطي.
Optimization of Refining Strategy to Fractionate Various Iraqi Crude Oils into Lighter Fractions
Authors: Shakor Dr. Zaidoon M. Shakor , Ali Salah M. Ali , Mohammed Harith A. Mohammed , Mohammed Harith A. Mohammed , Hassan Talal F. Hassan
Published: May 2021

The primary objective of this study is to predict optimum refining strategy to fractionatevarious Iraqi crude oils into lighter fractions depending on market monthly demand along oneyear.The monthly consumption of gasoline, kerosene and diesel was calculated and geneticalgorithm optimization method was used to calculate optimum cut points and blending ratio ofthree different crude oils (light Basrah, heavy Basrah and Kirkuk).The results prove that manipulation cut points within a year for a blend of three crude oils willdecrease 12.8% of distilled crude oil to produce the required amount of light cuts produced byrefining single crude oil.
Analisis Kualitas Pelayanan Website Pemerintahan Provinsi
Authors: Mulyani Hetty
Published: May 2021

Pelayanan publik dalam website merupakan salah satu isu penting dalam penyediaan layanan publik di Indonesia. Salah satunya adalah pelayanan public melalui website. Untuk mengetahui tingkat kualitas website terhadap pelayanan masyarakat dalam berbagai aspek, maka penelitian ini akan membahas analisis kualitas pelayanan pada Website Provinsi DKI Jakarta dan Provinsi DI Yoyakarta dengan menggunakan metode Webqual dengan Importance Performance Analysis (IPA). Pada metode Webqual digunakan parameter dimensi kegunaan, informasi, dan interaksi. Sehingga dapat diukur fasilitas pelayanan website kepada masyarakat dari tingkat kepuasan masyarakat dari dimensi kegunaan, informasi, dan interaksi terhadap masing-masing situs tersebut. Sehingga pelayanan website dapat ditingkatkan sesuai dengan harapan masyarakat DKI Jakarta dan DI Yogyakarta.
Aplikasi Sistem Pakar Pendeteksi Kerusakan Pada Smartphone Menggunakan Metode Dempster Shafer
Authors: Widiyanto Widiyanto
Published: May 2021

Seiring pemakaian smartphone yang semakin lama, pengguna smartphone biasanya akan menemukan gangguan berupa gejala-gejala kerusakan yang dialami smartphone mereka, baik gejala kerusakan pada software maupun hardware. Tetapi, pengguna smartphone yang tidak mengetahui penyebab kerusakan pada smartphone mereka, sehingga hal ini membuat mereka bingung karena tidak bisa mendapatkan solusi perbaikannya. Oleh karena itu, dibutuhkan sebuah aplikasi yang dapat membantu pengguna smartphone dalam mendiagnosa atau mencari kerusakan yang dialami smartphone mereka dengan lebih cepat sehingga pengguna smartphone mengetahui letak kerusakan dan mendapatkan solusi. Berdasarkan permasalahaan yang ada, penulis melakukan analisa dan merancang sebuah sistem pakar yang dapat mengatasi masalah yang dialami pengguna smartphone dalam mendiagnosa atau mencari kerusakan smartphone yang bervariasi. Software yang yang digunakan dalam pembangunan sistem pakar ini adalah Delphi dan Microsoft Office Access 2007 sebagai database. Adapun metodologi yang digunakan untuk pengembangan sistem pakar ini adalah metodologi waterfall. Sedangkan metode sistem pakar yang digunakan adalah metode dempster shafer yaitu teori matematika pembuktian berdasarkan fungsi kepercayaan dan pemikiran yang masuk akal. Sehingga didapatkanlah sebuah sistem pakar yang mengandung ilmu pengetahuan tentang kerusakan smartphone. Sistem pakar ini dapat membantu pengguna smartphone dalam melakukan diagnosa dan pencarian terhadap jenis kerusakan smartphone secara umum melalui pemilihan gejala kerusakan yang terjadi pada smartphone mereka. Dengan bantuan sistem pakar ini, diharapkan dapat membantu pengguna smartphone agar mendapatkan solusi yang tepat.
Expert Advisor Foreign Exchange Menggunakan Simple Moving Average
Authors: Suratman Suratman
Published: May 2021

Foreign exchange (forex) trading adalah transaksi perdagangan nilai tukar mata uang asing di pasar uang internasional, pada saat ini perdagangan foreign exchange banyak diminati oleh masyrakat luas. Pada dasarnya trading forex (foreign exchange) dilakukan secara manual, sehingga hal itu membutuhkan pemantauan grafik harga secara terus-menerus pada layar monitor dan tentu saja itu membuang waktu dan tenaga serta psikologi trader sendiri. Berdasarkan permasalahan yang ada, penulis melakukan analisa dan merancang expert advisor menggunakan indikator simple moving average yang mengantisipasi kelemahan-kelemahan pada trading manual.Perancangan expertadvisor menggunakan indikator simple moving average yang penulis usulkan telah menjawab permasalahan yang ada. Dengan demikian expert advisor ini akan memberikan hasil yang baik dalam trading. Software yang digunakan sebagai alat bantu dalam penelitian ini adalah menggunakan metaeditor dan metatrader 4, metodologi yang digunakan untuk pengembangan expert advisor ini adalah menggunakan metode sekuensial linier.
Penerapan Intelegensia Buatan Dengan Algoritma Negamax Pada Aplikasi Permainan Deret Lima
Authors: Salmon Ridwanto
Published: May 2021

Perkembangan teknologi semakin pesat, termasuk perkembangan didunia hiburan digital dalam hal ini perkembangan permainan berbasis komputer. intelegensia buatan adalah merupakan bagian dari kemajuan teknologi itu sendiri yang membuat mesin atau komputer dapat melakukan pekerjaan seperti dan sebaik manusia dimana komputer dapat berfikir selayaknya manusia, dalam dunia permainan komputer pun demikian, komputer dapat berpikir selayaknya manusia dalam melakukan permainan. Permainan deret lima yang menerapkan perkembangan teknologi permainan digital berbasis komputer dengan menggunakan Intelegensia buatan dengan algoritma negamax membentuk komputer dapat bermain, berpikir selayaknya manusia dalam menyusun bola berderet sebanyak lima buah secara horizontal, vertikal, maupun diagonal dimana komputer dapat mengalahkan manuasi dalam bermain. Permainan deret lima merupakan tipe permainan simetris, yang menggunakan papan berpetak dalam permaianannya. Pemain akan menyusun bola berwarna putih dan hitam sebanyak lima buah secara berderet baik horizontal, vertikal, maupun diagonal di papan permaianan. Pemain yang terlebih dahulu dapat menyusun bola itu yang memenangkan permainan.
Aplikasi Pembuatan Jadwal Sidang Kerja Praktek, Pra Sidang, Dan Skripsi Dengan Algoritma Greedy Sekolah Tinggi Teknologi Indones
Authors: Herman Herman
Published: May 2021

Sekolah Tinggi Teknologi Indonesia Tanjungpinang merupakan sebuah tempat institusi atau perguruan tinggi yang mengfokuskan pendidikan di bidang informatika dan sistem informasi pada komputer. Sistem penjadwalan sidang yang sedang dilakukan oleh Sekolah Tinggi Teknologi Indonesia Tanjungpinang bersifat secara manual sehingga sering terjadinya kesalahan dan kelambatan dalam acara sidang. Untuk mengatasi masalah-masalah yang akan terjadi, maka dibutuhkan sebuah aplikasi yang terkomputerisasi untuk mempermudah dalam proses pembuatan jadwal sidang. Dalam melakukan penelitian ini, metodologi yang digunakan adalah metode waterfall yang terdiri dari rekayasa sistem, analisis, desain, implementasi, pengujian dan pemeliharaan. Tahap analisis menggunakan metode terstruktur denganFlowmap dan DFD. Hasil dari penelitian ini adalah dibangunnya suatu perangkat lunak untuk mengolah data service yang dibuat dengan bahasa pemograman  ASP.NET dan Microsoft SQL Server. Metode yang digunakan dalam aplikasi ini adalah Algoritma Greedy. Diharapkan dengan  adanya aplikasi yang  dibangun ini akan mempermudah pihak Sekolah Tinggi Teknologi Indonesia Tanjungpinang dalam proses pembuatan jadwal sidang dan mahasiswanya dapat mendaftarkan diri mengikuti sidang lebih mudah.
Aplikasi Peminjaman dan Pengembalian Tools di Perusahaan PT. Esco Bintan Indonesia Berbasis Web
Authors: Safitri Liza
Published: May 2021

In 1978, Esco was established in Singapore to provide clean air solutions for the high-tech and science industry website escoindonesia.com. From there, Esco is committed to providing the best solutions in technological capabilities to create a cleaner, healthier and safer world. In this study, which is used as an object of research that is in the system of borrowing and returning tools. In operational activities it still uses a manual and conventional system, unsupported by an integrated system. From the observations and research, the author finally built an Information System as solution. The information system is designed and built with a web-based platform using Notepad ++ as its programming editor, MYSQL front as a data base editor, XAMPP as a database server and PDF as a report viewer media. Apply the Squence Diagram method in software development. This new information system is expected to be able to assist in the company's activities, such as in making loan forms, return forms and loan and repayment reports, etc. The application of this Information System is expected to improve the efficiency, effectiveness and performance of the company PT Esco Bintan. After the existence of this Information System the company can operate this system more quickly and easily without requiring a very long time to operate the work. And the company is very easy to find the required documents and storage is very safe not easily lost
Aplikasi Keamanan Pintu Berbasis Arduino Uno R3 Atmega 328p Menggunakan Fingerprint Dan Ultrasonik
Authors: Setiawan Hendi , Darmawan Mega Permana  , Agus Fitro Handoko
Published: May 2021

Dalam sistem keamanan pintu memang sudah banyak yang menggunakan, bahakan lebih canggih, namun dengan kecanggihan atau sistem keamanannya lebih baik tetapi terdapat juga kekurangannya, yaitu biaya untuk menginplementasikannya sangatlah mahal. Oleh karna itu dibutuhkanlah sebuah sistem keamanan pintu yang lebih murah dan terjangkau dalam pengimplementasiannya. Dalam penelitian ini penulis mengangkat sebuah kasus yaitu membuat sebuah sistem keamanan pintu yang dapat diterapkan dan terjangkau dalam biaya oprsasionalnya. Sistem keamanan pintu ini menggunakan aplikasi arduino sebagai uploader, kemudian sensor fingerprint dan sensor ultrasonik sebagai alat yang digunakan.  Sistem keamanan pintu ini hanya dapat di implementasikan jika sistem ini mendapat suplay arus listrik dan hanya dapat diakses terhadap sidik jari yang sudah terdaftar.
Aplikasi Pengolahan Data Spbu ( Stasiun Pengisian Bahan Bakar Umum ) Pt. Sinar Mustika Bintan Km 19 Bintan Timur
Authors: ELVIANNA  , Nurul Saepul  , Doni Kristianto
Published: May 2021

This thesis report is prepared based on the results of the analysis of the ongoing data collection system as well as the results of designing a new system at PT. SINAR MUSTIKA BINTAN SPBU Km 19 East Bintan. The results of the analysis show that manual data processing causes several problems so that the system performance becomes less efficient. To fix the deficiencies that exist in the system that is being implemented, a new system is designed to increase work efficiency. The data processing application developed can help solve problems that have existed before. This application was built using Borland Delphi 7.0. With this new system and application, it is hoped that the work process will be more efficient and can be improved.
Sistem Informasi Terpusat Berbasis Client Server Pada Yamaha Asli Motor VIII Tanjungpinang
Authors: Nurjaman Jajang , Slamet Santoso  , Suhartono
Published: May 2021

The sales, purchase and payroll processes at Yamaha Asli Motor VIII Tanjungpinang are currently processing data on incoming and outgoing goods as well as managing incoming and outgoing finances using manual methods. In order for the data processing process to run effectively and efficiently, it should be necessary to use information system applications to cope with and handle existing data processing processes. With the formation of a system with a computerized process, it is hoped that it can overcome the problems that have occurred. In conducting this research, the software development method used is the waterfall method which consists of systems engineering, analysis, design, implementation, testing and maintenance. This application is based on a client server and is built using the Java Netbeans programming language and the PhpMyAdmin database. The result of this research is a software system for data processing at Yamaha Asli Motor VIII Tanjungpinang. With this application, it is hoped that it will make it easier for Yamaha Asli Motor VIII Tanjungpinang in the data collection process.
Proses Migrasi Cloud Computing Dari Lingkungan Amazon Ec2 Ke Vmware
Authors: Mafakhiri Jauharul
Published: May 2021

Intisari— Permasalahan pada penelitian ini adalah mengenai pengujian virtual machine di tingkat fungsionalitas aplikasi pada lingkungan komputasi awan di antara dua cloud provider IaaS (Infrastructure as a Service). Tujuan dari pengujian fungsionalitas ini adalah untuk mengetahui tingkat interoperabilitas aplikasi dalam sistem virtual machine yang berpindah dari sebuah cloud provider ke cloud provider lain, yaitu migrasi dari Amazon EC2 ke VMWARE. Peneliti memiliki ketertarikan mengenai pengujian migrasi ini sebab perkembangan Internet menjadi semakin pesat, dan diiringi dengan meningkatnya jumlah aplikasi yang memanfaatkan teknologi komputasi awan itu, sementara kemampuan proses bisnis suatu aplikasi semakin bertambah, fitur layanan yang ditawarkan para pihak cloud provider menjadi semakin baik (dari sisi harga menjadi lebih murah, performansi sistem menjadi lebih tinggi, sistem menjadi lebih handal, pemanfaatan kecanggihan teknologi security terbaru, maupun Service Level Agreement (SLA) menjadi lebih baik), maka memungkinkan untuk berpindah layanan ke cloud provider lain, namun di sisi praktik sering terjadi kegagalan fungsionalitas aplikasi dalam proses migrasi ke sistem cloud yang lain, yang antara lain disebabkan oleh masalah ketergantungan terhadap penyedia layanan komputasi awan (vendor lock-in). Masalah ketergantungan ini muncul disebabkan oleh jumlah cloud provider semakin bertanbah banyak dan mempunyai standar tersendiri dalam pembangunan sistemnya, sehingga dapat mengakibatkan kemampuan migrasi antar cloud itu dapat memiliki keterbatasan untuk hal-hal tertentu. Dengan 28 test case pengujian atas fitur-fitur pada aplikasi website ujian online yang diuji pada penelitian ini, diperoleh hasil tingkat interoperabilitas migrasi dari Amazon EC2 ke VMWARE memiliki nilai sebesar 46.43%.

Kata kunci— pengujian, fungsionalitas, komputasi, awan, migrasi, interoperabilitas.
Evaluation of okra (Abelmoschus esculentus L. Moench) genotypes for important quantitative characters
Authors: Ansari Abdul Majid , Ahmad Ekhlaque , Nazrussalam Nazrussalam , Singh D.N.
Published: May 2021

An experiment was carried out during kharif 2017 at Zonal Research Station, Chianki using sixteen promising genotypes of okra with three replications in randomized block design. Observations on ten important quantitative characters were recorded. Analyzed data revealed that all characters showed significant effect. The genotype Ajeet-121 gave significantly highest yield with the yield of 135.12 q/ha followed by NS-862 and Super green with the yield of 134.75 q/ha and 134.02 q/ha, respectively. Average fruit weight (15.33 g) and yield of fruits per plant (245.67 g/plant) were recorded significantly highest in the genotype Ajeet-121. On the basis of these observations, it may be concluded that the genotype Ajeet-121 was found most suitable okra genotype for kharif cultivation in the western plateau region (sub zone-V) of Jharkhand.
Backyard poultry farming for meat and egg production: rural enterprise
Authors:   Krishi Vigyan Kendra, Jehanabad, Bihar Agricultural University, Sabour, Bihar, India, Mahto Dinesh
Published: May 2021

Twenty farmers selected from each village for 6 villages of the district and skill based training on various aspects of backyard poultry farming. Participants enriched with sound knowledge were distributed with 25 Vanaraja & Grampriya chicks per person. The records of mean body weight of Grampriya and Vanaraja at different week interval. The body weight of crosses differ significantly (p < 0.05) after 4th week of age from their parents. The body weights of crosses were significantly (p < 0.05) higher than Hazra (Desi) birds and nearly similar to Vanaraja birds at different period of age attaining the sexual maturity in different groups of poultry birds. Vanaraja matures at the age of 141.62 days, Hazra (Desi) bird at 186.47 days and Grampriya at 158.32 days. The pullet egg weight of Vanaraja, Hazra (Desi) and Grampriya were 38.75, 30.82 and 34.94 g, egg weight at 40 weeks of age were 55.87, 42.89 and 51.26 g and increase in egg weight were 17.12, 12.07 and 15.42 g respectively. The hatchability percentages were 87.56%, 89.36% and 85.72% on fertile egg set and 68.23%, 68.92% and 64.74% on total egg set basis respectively in Vanaraja, Grampriya and local desi birds.
Actual and Potential Land Productivity of Some Soils of Sohag-Red Sea Road Sides, Eastern Desert, Egypt
Authors:   Division of Soil and Water Sciences, Faculty of Agriculture, Sohag University, Egypt, 82524, Moursy Ali , A Abdelgalil ,   Division of Soil and Water Sciences, Faculty of Agriculture, Sohag University, Egypt, 82524, M.S Ibrahim ,   Division of Soil and Water Sciences, Faculty of Agriculture, Sohag University, Egypt, 82524, A.A Abdelhady ,   Division of Soil science, Faculty of Agriculture, Cairo University, Egypt, 12613., A.A Mustafa ,   Division of Soil and Water Sciences, Faculty of Agriculture, Sohag University, Egypt, 82524
Published: May 2021

Egyptian Government focuses on development projects especially in new lands such as Sohag-Red Sea road to improve tourism and agricultural activities. This study aims to assess the actual and potential land productivity. Seventeen soil profiles were chosen depending on the six mapping units of the study area. Soil profiles were drilled and soil samples were collected from each horizon. Nine land characteristics were measured/estimated viz. soil moisture content (H), drainage (D), depth (P), texture (T), soluble salts content (S), average nutrient content (N), organic matter content (O), cationic exchange capacity (A) and reserves weatherable minerals (M). Soil samples were analyzed for their mentioned parameters using the standard methods of soil analysis. Accordingly, land productivity (PI) and potentiality (P⸌I) indices were calculated for all studied soil profiles. The results revealed that actual land productivity of the studied area is extremely poor and can be enhanced 17 times by improving soil moisture content, texture, and organic matter content as the most important controlling-factors. Actual and potential land productivity maps were generated using Arc GIS 10.1 software. These results may help decision-makers for new lands reclamation planning and better agricultural production.
Influence of seed rate and NPK fertilizer on yield and quality of Rhodes grass (Chloris gayana L. kunth.)
Authors:   Department of Crop Science, College of Agriculture, University of  Bahri, Khartoum, Sudan, Brima Fathi I. A. , Abusuwar Awad ,   Departments of Agronomy, Faculty of Agriculture, University of Khartoum, Khartoum, Sudan
Published: May 2021

A field experiment was conducted during summer season of 2007 at the Demonstration Farm of the Faculty of Agriculture, University of Khartoum, Shambat, Sudan, to investigate the effect of seed rate and NPK fertilization on yield and quality of Rhodes grass forage (Chloris gayana L. Kunth) cv. Finecut. The treatment consisted of three seed rates (SDR1, SDR2 and SDR3) namely 5, 10 and 15 kg/ha and three NPK fertilizer levels (F0, F1 and F2) namely 0, 120 and 240 kg/ha respectively. NPK fertilizer components were N17 P17 K17. The experiment was laid out in a Factorial CRBD with four replications. The results showed that seed rate significantly increased forage fresh and dry yield. NPK fertilization significantly increased forage fresh and dry yield. Neither seed rate nor NPK fertilization were significantly affected crude protein and fiber content of leaves and stems of Rhodes grass, but the increase in seed rate and fertilizer levels slightly increased crude protein and decreased fiber percentage. Seed rate ×NPK fertilization interaction showed significant effect on crude protein and crude fiber contents. The highest protein percentage obtained under SDR2 (10kg/ha) with highest NPK fertilization level F2 (240 kg/ha), and lowest value obtained under SDR1(5kg/ha) with NPK fertilization F1(120kg/ha) and SDR1(5kg/ha) under control of fertilizer treatment (F0). Regarding crude fiber, highest value obtained under SDR2(10 kg/ha) with NPK fertilization F1 (120kg/ha) and SDR3 (15 kg/ha) under control treatments of fertilization (F0).
Effect of weed control on weeds, grain yield and its components of maize (Zea mays L)
Authors:   Agronomy Department, Faculty of Agriculture, Cairo University, Egypt, El-Badry Ola , Gheith El-Sayed ,   Agronomy Department, Faculty of Agriculture, Cairo University, Egypt
Published: May 2021

The present study entitled “effect of weed control on weeds, grain yield and its components of maize (Zea mays L.) cv. Single cross-10 was carried out at the Agricultural and Experiments Research Station at Giza, Faculty of Agriculture, Cairo University, Egypt. The experiment was conducted in the summer 2017 and was repeated in 2018 on the same piece of land to conform previous findings. The experiment design was Randomized Complete Block design (RCBD) having three replications. Six treatments include atrazine (1.0 kg/ha), glyphosate (0.8 kg/ha). atrazine + glyphosate, one hand hoeing after three weeks, hand hoeing twice after three and five weeks from sowing and weedy chick as control were used. Results indicated that glyphosate was found superior to atrazine for all studied characters. Moreover, lower weed dry matter accumulation and higher weed control % as well as higher values of ear characters ( ear length, ear diameter, grain weight/ear and shilling %) and grain yield per unit area were recorded in tank mix application of atrazine + glyphosate followed by hand hoeing twice.
Small and Large Firm Performance Gaps in Indonesia: Evidences from the 1981–2008 Indonesian Manufacturing
Authors: Kuncoro Ari
Published: May 2021

This study aims to examine the impacts of globalization on the performance gap between small and large firms in Indonesia, specifically in the manufacturing sector. First, the study addresses whether there are performance differentials between small and large firms, and if so, whether such gap is increasing while controlling for firm characteristics such as age, finance, export orientation, industry, and macroeconomic indicators. Second, the study discusses whether the opening of domestic market through trade and FDI liberalization affect firms disproportionately with respect to firm size. The study highlights such impacts amid successive economic reforms from 1986 to 1994. The empirical results suggest that opening the economy through market liberalization increased the productivity and wages gaps between large and small firms before it stabilized. Factors such as industrial agglomeration, financial access, export orientation have minimal impact on firms. The findings also suggest that while empirically, small firms benefit from more open trade regime after Asian financial crisis, the medium and large firms have more chance to benefit from the liberalization of the economy in general. Policy implications are also further explored.
Unequal Developments in Indonesia’s Digital-Based Economy and Its Implications
Authors: Adiningsih Sri , Setiaji Stri Nariswari , Ardiansyah Sofian Rendy
Published: May 2021

Despite having emerged for just some years, the development and growth of the digital-based economy in Indonesia is exponential. This study uses the Purposive Random Sampling and Descriptive Analyses method to assess the developments of the digital-based economy in several provinces in Indonesia. The Java-Bali region is more advanced in its digital-based economy compared to other provinces in Indonesia due to its infrastructure, human resources, and government policies which are more supportive. The inequalities between provinces remain a concern for it may directly correlate to a corresponding increase in disparity. Digital-based economy, if it is well-equipped with infrastructure and well-supported by local government, may serve as a balm given its potential as a tool to raise prosperity and equality in society. It will help prepare and equip those in remote rural areas, known as the bottom of the pyramid.
The Effect of Economic and Social Infrastructure on Household Food Security in Indonesia
Authors: Sari Dyah Wulan , Yudha Putri Candra Anggi , Restikasari Wenny
Published: May 2021

Food is a basic requirement for living things. This study aims to analyze the effects of economic infrastructure, social infrastructure and household characteristics on food security in Indonesia using the Johnsson and Toole (1991) methods. There were 285,908 households studied originating from the 2015 SUSENAS data. The model used in this study was the general ordered logistics model. Based on the results of the study there were 29.51% of food security, 25.12% of vulnerable food, 23.14% of food shortages and 22.33% of households at food insecurity. The results of this study also revealed that ownership of transportation modes, electricity use, fuel use, education of household heads and household health insurance significantly affected food security. The government program in the form of giving poor rice (RASKIN) provides poor results reducing the chance offood security by 11% and increasing the chances of food insecurity by 6%.
Analisis Spasial Tingkat Pengangguran Terbuka di Provinsi Jawa Barat
Authors: Septiyanto Wika Gessan , Tusianti Ema
Published: May 2021

Tingkat Pengangguran Terbuka (TPT) Provinsi Jawa Barat masih berada di atas angka nasional dan hingga saat ini belum dapat mencapai target Rancangan Pembangunan Jangka Menengah Daerah (RPJMD) dan Rancangan Pembangunan Jangka Menengah Nasional (RPJMN). Selain itu, TPT di Provinsi Jawa Barat cenderung mengelompok dengan TPT lebih tinggi di bagian barat. Oleh karena itu, tujuan dari penelitian ini adalah untuk mengidentifikasi faktor-faktor yang memengaruhi TPT di Provinsi Jawa Barat dengan mempertimbangkan efek ketetanggaan. Metode yang digunakan adalah metode regresi spasial dengan data panel. Model yang terpilih adalah fixed effect spatial autoregressive model. Faktor yang memengaruhi TPT di Provinsi Jawa Barat dengan mempertimbangkan efek ketetanggaan adalah Tingkat Partisipasi Angkatan kerja (TPAK), Upah Minimum Kabupaten (UMK), dan persentase tenaga kerja sektor industri.
Behaviour of Stock Returns During COVID-19 Pandemic: Evidence from Six Selected Stock Market in the World
Authors: Malini Helma
Published: May 2021

This paper investigates the short term return behavior of six selected stock market around the world during the COVID-19 Pandemic. USA, Indonesia, India, South Korea, Saudi Arabia, and Singapore are selected based on the size of their stock market and the countries have taken a considerable amount of decision and policy to mitigate the risk of before, ongoing, and aftermath COVID-19 Pandemic. This study relies on two major time series investigation techniques, namely Econometric Modeling of returns; The Autoregressive model, Assumption of Linearity, Volatility Modeling, namely the GARCH and WBAVR Test. The results suggest that the stock return behavior in six selected countries occurs in different forms. Our findings suggest that the policymakers must understand how to shift their policy to mitigate the risk of COVID-19 in the financial sector, since we observe a strong correlation between the public health crisis and stock market performances.
Mối liên quan giữa đa hình gen PD-L1 RS4143815 và nồng độ PD-L1 với nhiễm HBV mạn tính
Authors: Huyền Phạm Thị Minh , Dung Đặng Thị Ngọc , Giang Đào Phương , Song Lê Hữu , Uyên Ngọ Thị , Tuyên Quyền Đăng , Hoàn Nghiêm Xuân
Published: May 2021

Con đường tín hiệu ức chế điểm kiểm soát miễn dịch PD-1/PD-L1 đóng vai trò quan trọng trong nhiễm vi rút viêm gan B mạn tính. Mục tiêu của nghiên cứu là đánh giá mối liên quan giữa tính đa hình gen PD-L1 rs4143815 và nồng độ PD-L1 đối với nhiễm virus viêm gan B mạn tính và biểu hiện lâm sàng ở bệnh nhân nhiễm HBV mạn tính. Đối tượng nghiên cứu bao gồm 127 bệnh nhân viêm gan B mạn tính, 157 bệnh nhân ung thư gan do nhiễm virus viêm gan B và 240 người khỏe mạnh. Xác định kiểu gen PD-L1 rs4143815 bằng kĩ thuật tetra-primer-ARMS và xác định nồng độ PD-L1 bằng phương pháp ELISA. Kết quả nghiên cứu cho thấy không có sự khác biệt có ý nghĩa về tần suất kiểu gen của biến thể rs4143815 giữa nhóm bệnh và nhóm chứng cũng như giữa nhóm viêm gan B mạn tính và ung thư biểu mô tế bào gan. Nồng độ PD-L1 ở nhóm bệnh cao hơn có ý nghĩa so với nhóm chứng và có mối liên quan đến tiến triển bệnh và biểu hiện lâm sàng ở bệnh nhân nhiễm virus viêm gan B mạn tính.
Giá trị thăm khám tầng sinh môn, chẩn đoán hình ảnh trong xác định đường rò trực tràng niệu đạo
Authors: Minh Ngô Duy , Liêm Nguyễn Thanh , Hiền Phạm Duy , Quỳnh Trần Anh
Published: May 2021

Xác định giá trị của thăm khám tầng sinh môn, chụp X - quang túi cùng trực tràng, chụp bàng quang – niệu đạo trong lúc tiểu, chụp cộng hưởng từ (MRI) và nội soi bàng quang - niệu đạo trong chẩn đoán rò trực tràng – niệu đạo. Tất cả bệnh nhân teo hậu môn rò trực tràng - niệu đạo được xác định trong mổ thì 2, từ 06/2018 đến 6/2020 tại khoa ngoại Bệnh viện Nhi Trung ương. Kết quả nghiên cứu cho thấy 92,9% rò trực tràng - niệu đạo tiền liệt tuyến biểu hiện vết tích hậu môn phẳng, 94,1% rò trực tràng niệu đạo hành biểu hiện vết tích hậu môn lõm. 75,6% trường hợp xác địnhđường rò bằng chụp XQ túi cùng trực tràng. So với chụp XQ túi cùng trực tràng, chụp bàng quang - niệu đạo trong lúc tiểu có tỷ lệ phát hiện đường rò thấp hơn (66,7%), chụp MRI và nội soi bàng quang có tỷ lệ phát hiện đường rò cao hơn lần lượt là 93,3% và 95,6%. So với chụp XQ túi cùng trực tràng, chụp MRI và nội soi bàng quang – niệu đạo có tỷ lệ phát hiện đường rò cao hơn.
Giá trị tiên lượng của di căn hạch cạnh động mạch chủ trong phẫu thuật ung thư đầu tụy
Authors: Lan Nguyễn Thị , Hà Phạm Hoàng , Anh Đỗ Tuấn , Khiêm Nguyễn Thành , Đăng Đỗ Hải , Hùng Nguyễn Văn
Published: May 2021

Nghiên cứu đánh giá tính chất di căn hạch, biến chứng và thời gian sống thêm giữa nhóm hạch cạnh động mạch chủ (hạch 16) dương tính và âm tính. Nghiên cứu dưới dạng mô tả hồi cứu, chọn mẫu thuận tiện trên 42 bệnh nhân ung thư đầu tụy được mổ cắt khối tá tụy, nạo vét hạch tiêu chuẩn và sinh thiết nhóm hạch 16 tại Bệnh viện Hữu nghị Việt Đức từ tháng 4/2014 đến tháng 11/2019. Kết quả cho thấy số hạch nạo vét được ở nhóm có hạch 16 dương tính cao hơn không có ý nghĩa thống kê (p > 0,05). Có sự khác biệt về số hạch dương tính giữa 2 nhóm (6,83 ± 2,48 và 0,81 ± 0,98) (p = 0,003). Thời gian sống thêm toàn bộ cùa nhóm dương tính là 16,7 ± 2,4 tháng, thấp hơn so với nhóm còn lại (p < 0,05). Vì vậy, di căn hạch 16 là yếu tố tiên lượng xấu. Cần xác định di căn hạch 16 trước hoặc sinh thiết tức thì trong mổ để quyết định phương pháp điều trị tối ưu cho bệnh nhân ung thư đầu tụy.
Nghiên cứu mối liên quan giữa đa hình kiểu gen AGT M235T với bệnh thận đái tháo đường
Authors: Hương Trần Thị Thu , Khánh Trần Vân , Hà Đặng Thị Việt , Anh Nguyễn Thọ , Hoài Nguyễn Quí
Published: May 2021

Bệnh thận đái tháo đường là một bệnh mạn tính có nguy cơ gây gia tăng các biến chứng về tim mạch cũng như tỷ lệ tử vong cho người đái tháo đường. Mục tiêu nghiên cứu xác định mối liên quan giữa đa hình gen AGT M235T với bệnh thận đái tháo đường. Nghiên cứu trên 237 người đái tháo đường typ 2 được chia làm 2 nhóm: nhóm bệnh (117 người) là những người bị bệnh thận đái tháo đường theo tiêu chuẩn lựa chọn và tiêu chuẩn loại trừ của nghiên cứu. Nhóm chứng (120 người) là những người không mắc bệnh thận sau 10 năm bị đái tháo đường. Kết quả nghiên cứu cho thấy: nhóm bệnh có tỷ lệ bệnh nhân nữ là 57,3% (n = 67), tuổi trung bình nhóm bệnh là 68,3 ± 8,2 tuổi. Đa hình AGT M235T có tỷ lệ CC, (CT,TT) lần lượt là 88%, 12% ở nhóm bệnh và 83,3%, 16,7% ở nhóm chứng. Trung bình mức lọc cầu thận của bệnh nhân bệnh thận đái tháo đường có kiểu gen CC là 49,9 ± 20,6 mL/phút/1,73m² và bệnh nhân có kiểu gen (CT,TT) là 63,4 ± 15,2 mL/phút/1,73m² ,(p < 0,05). Chưa ghi nhận có mối liên quan giữa đa hình AGT M235T và bệnh thận đái tháo đường