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bsj-9231
Purification and characterization of L-asparaginase produced from Bacillus sp.
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The objective of this study was to isolate and identify the asparaginase-producing bacteria, then purify and characterize the enzyme in order to investigate their properties in the future. Fifteen local bacterial isolates were isolated from various sites in the city of Baghdad, identified by conventional morphological and biochemical procedures, and confirmed using vitek 2 methods, and submitted to primary screening processes for asparaginase production. For secondary screening, eight isolates with the greatest yellow zone ability on a specific solid medium were chosen. Bacillus sp. was reported to have the highest enzyme production (7.5 U/mg proteins). After 24 hours of incubation, submerged fermentation yielded optimal conditions for the production of L-asparaginase (L-ASNase) by the chosen isolate, with medium (2) serving as the optimal medium for production and fructose serving as the optimal source of carbon. In pH 6 at 40°C, Sephadex G-150 gel filtration chromatography was used to purify the enzyme. The final purification folds were increased by 2.5 times, resulting in an enzyme yield of 93.7%. It also showed the highest purified enzyme activity and stability was at 37°C. Also it revealed the highest activity and stability at pH 7.0 and pH 8.0 respectively. Enzyme lost activity when exposed to several metallic ions at concentrations of 1, 5, and 10 mM.

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Publication Date
Mon Jan 01 2024
Journal Name
Baghdad Science Journal
A Theoretical Investigation of Chemical Bonding of a Heterometallic Trinuclear Cluster Containing Iridium and Ruthenium: [(Cp*Ir) (CpRu)2 (μ3-H) (μ-H)3] by QTAIM Approach
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  Numerous integral and local electron density’s topological parameters of significant metal-metal and metal-ligand bonding interactions in a trinuclear tetrahydrido cluster [(Cp* Ir) (Cp Ru)23-H) (μ-H)3]1 (Cp = η5 -C5Me5), (Cp* = η5 -C5Me4Et) were calculated and interpreted by using the quantum theory of atoms in molecules (QTAIM). The properties of bond critical points such as the delocalization indices δ (A, B), the electron density ρ(r), the local kinetic energy density G(r), the Laplacian of the electron density 2ρ(r), the local energy density

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Publication Date
Wed Nov 30 2022
Journal Name
Iraqi Geological Journal
A Predictive Model for Estimating Unconfined Compressive Strength from Petrophysical Properties in the Buzurgan Oilfield, Khasib Formation, Using Log Data
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Unconfined compressive strength (UCS) of rock is the most critical geomechanical property widely used as input parameters for designing fractures, analyzing wellbore stability, drilling programming and carrying out various petroleum engineering projects. The USC regulates rock deformation by measuring its strength and load-bearing capacity. The determination of UCS in the laboratory is a time-consuming and costly process. The current study aims to develop empirical equations to predict UCS using regression analysis by JMP software for the Khasib Formation in the Buzurgan oil fields, in southeastern Iraq using well-log data. The proposed equation accuracy was tested using the coefficient of determination (R²), the average absolute

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Publication Date
Sat Apr 01 2023
Journal Name
Heliyon
A comprehensive review on modelling the adsorption process for heavy metal removal from waste water using artificial neural network technique
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Publication Date
Tue Aug 01 2017
Journal Name
Journal Of Economics And Administrative Sciences
Relationship of the key elements of Knowledge management with strategic performance / filed research sample of private banks in Baghdad
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objective  the research to diagnosis and interpretation of the nature of the correlation between the  basic elements of knowledge management (tecgnology , structure , culture , process , human resource ) and the strategic performance of the Iraqi private banks, the research community and the level dimensions, and  tested this research in the private banking sector represented by (7), especially in Baghdad city, Iraqi banks, and applied on sample consisting of 100 distributors in several administrative levels Director (Director, Director of the department, branch manager), and use questionnaire Head to collect data and information tool, and some private banks annual reports, has sought research to test a number of h

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Publication Date
Wed Dec 19 2018
Journal Name
Arab Science Heritage Journal
فصول فصول من تاريخ يوحنا النيقي فتح مصر
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These Chapters are concerning a lot of information about Islamic conquest of Egypt . The important chapters are the following :- Chapter 111 :- Concerning the first encounter of Amru with the Romans at the city of Heliopolis . Chapter 112:- How all the Jews assembled in the city of manuf owing to their fear of the Muslim . the Jews left the gates of Misr open and fled to Alexandria .

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Publication Date
Mon Dec 26 2022
Journal Name
Arab Science Heritage Journal
التجارة في البحرين من خلال كتب الرحالة والبلدانيين
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    Economic life in any of the countries depends mainly on economic activity due to its great role in meeting the needs and expenditures of the state . therefore ، Bahrain played a major role in commercial exchange operation ،  whether at home or abroad . whatever the matter

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Publication Date
Sun Apr 03 2016
Journal Name
Journal Of Educational And Psychological Researches
Educational values when Imam Shafie i through his hair
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In this research was the study of the educational values ​​when Shafei, contained in hair Shafi'i, and that what the role of these values ​​in the education of generations, and the possibility of their application in the educational curriculum. Find addressed Shafei life and his time. The values ​​derived from his hair, as well as quoting from the Koran and influenced by it, which is evident in the hair, governance and eating Alomthal.okzlk Find the importance of this thought in modern education, so as to realism and ease of application. It is the search results, the Shafi'i put thought educationally integral based on the Koran rise to the level of theory. Find and conclusions: that education in its present situation

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Publication Date
Mon Jan 23 2023
Journal Name
Arab Science Heritage Journal
التجارة في البحرين من خلال كتب الرحالة والبلدانيين
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Economic life in any of the countries depends mainly on economic activity due to its great role in meeting the needs and expenditures of the state . therefore ، Bahrain played a major role in commercial exchange operation ،  whether at home or abroad . whatever the matter

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Publication Date
Tue Dec 19 2023
Journal Name
المجلة العراقية للعلوم السياسية
دور الفواعل من غير الدول في النظام العالمي
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ينطبق مصطلح الفاعلين من غير الدول على جميع القوى أو المنظمات أو الجهات التي لا تؤسسها الدولة ولا تكون طرفاً فيها، ولها هويتها الخاصة، وتتمتع بإستقلال تام عن تمويل ومراقبة الحكومات، وتمتلك مواردها الخاصة التي تضمن لها تحقيق أهدافها في البيئة التي تنشط فيها. إن الفواعل من غير الدول بوصفها كيانات إجتماعية أو إقتصادية غير حكومية ، قد جاءت نتيجة التحول الحاصل في بنية النظام الدولي والسياسة الدولية بإتجاه النظام

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Publication Date
Sun Jun 18 2023
Journal Name
Arab Science Heritage Journal
تحقيق القسم السادس من مخطوطة خبرة الفقهاء للفرغاني
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    In fact, the main idea of ​​the manuscript is to take note of a branch of Islamic jurisprudence, which is the science of jurisprudential and this manuscript in its title and subject to the men of knowledge of jurisprudence because of its ambiguity calls for thinking, and the brainstorming mood to test the intelligence of jurisprudence, Of students of knowledge jurisprudence. This section contains (25) questions starting with the question (101) and ending with (125) .

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