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bsj-6527
Describing Polymers Synthesized from Reducing Sugars and Ammonia Employing FTIR Spectroscopy
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          Melanoidins can be diagnosed using the Fourier transform infrared (FTIR) technique. UV/Vis is an effective tool for both qualitative and quantitative analysis of chemical components in melanoidin polymers. The structural and vibrational features of melanoidin synthesized from D-glucose and D-fructose are identical, according to FTIR spectra, with the only difference being the intensity of bands.  Using FTIR spectra, the skeleton of melanoidin is divided into seven major regions. The existence of the C=C, C=N, and C=O groups in all melanoidins formed from fructose and glucose with ammonia is confirmed by the areas ranging from 1600 to 1690 cm-1, and the band is largely evident as a broad shoulder. Both melanoidins have a carboxyl or carbonyl extending around 1700 cm-1. In all melanoidins, the NH+ group has vanished in the 3080 cm-1 range. However, the color intensity depends on the type of sugar employed in melanoidin synthesis. Furthermore, in comparison to Glc-ammonia, which has a higher proportion of sp3 hybridized carbon, Fru-ammonia has a higher proportion of sp2 hybridized carbon based on UV/Vis, FTIR and second-derivative spectra. Moreover, the data were simulated using principal component analysis. Principal component analysis (PCA) was used to interpret the data.

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Publication Date
Sun Jan 01 2012
Journal Name
Journal Of Educational And Psychological Researches
الصعوبات التي تواجه البحث العلمي في جامعة بغداد من وجهة نظر التدريسيين
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The problem of the study lies in the need for standing on the justifications, reasons and difficulties that face the scientific research matter at Baghdad university. The importance of this study lies in the fact of being scientific research one of the most important methods in developing the teaching members performance efficiency which contributes in teachers contact with the modern developments that emerge in work. That matter which reflexe on the educational process and the scientific production in their universities.

And the research goal is summarized in identifying the difficulties that is facing the scientific research at Baghdad university from the point of view of the lecturers, and also to ide

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Publication Date
Fri Mar 01 2024
Journal Name
Baghdad Science Journal
On Existence of Prime K-Tuples Conjecture for Positive Proportion of Admissible K-Tuples
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Number theorists believe that primes play a central role in Number theory and that solving problems related to primes could lead to the resolution of many other unsolved conjectures, including the prime k-tuples conjecture. This paper aims to demonstrate the existence of this conjecture for admissible k-tuples in a positive proportion. The authors achieved this by refining the methods of “Goldston, Pintz and Yildirim” and “James Maynard” for studying bounded gaps between primes and prime k-tuples. These refinements enabled to overcome the previous limitations and restrictions and to show that for a positive proportion of admissible k-tuples, there is the existence of the prime k-tuples conjecture holding for each “k”. The sig

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Publication Date
Fri Jan 01 2021
Journal Name
Journal Of Economics And Administrative Sciences
The Effect of technical innovation on the human resources management ambidexterity through job emededdness
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The current research aims to validate the Effect of technical innovation on human resources management ambidexterity through job embeddedness. The current research was done in  Al-Etihad Food Industries Co. Ltd. And within the industrial environment, the research was designed according to the descriptive research. And to achieve the main goal of the research above, the researcher used the questionnaire as a key instrument to collect data through the views of a sample of managers, and employees at the senior, middle and executive management level. The research sample reached (107) individuals, the data were analysed using the statistical packages (SPSS v. 26) and ( SMART PLS v 3. 3. 8) the group of statistical

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Publication Date
Sun Nov 04 2018
Journal Name
Arab Science Heritage Journal
اسهامات إسهامات المقادسة العلمية في مصر من القرن (5-8هـ/ 11-14م)
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The Subject  of  contritutions  to Jerusalemites  Scientific  in  Egypt  from  8.5  Century  14.11 AD of  noteworthy  studies  Concern  Coming  Of these  Scientists  to  Egypt  has  helped  toth  to  Seek  Knowledge  and  Study  or  teaching  in  the tooming  w0rid of Science  broadly  and  distinctive  through  Scientific  interaction  and  intermingling  of  Civilization  between  Scientists  this  Mixing  effect  of  the  Scientific  life  and  in tellectal  of The  nam

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Publication Date
Sun Oct 04 2009
Journal Name
Journal Of Educational And Psychological Researches
الكفايات التدريسية اللازمة للطالبات- المدرسات في كلية التربية للبنات من وجهة نظرهن
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     هدفت الدراسة الى تحديد الكفايات التدريسية اللازمة للطالبات- المدرسات من وجهة نظرهن وذلك للتعرف على مدى حاجتهن لهذه الكفايات التدريسية التي ينبغي امتلاكها لتحقيق الاهداف المنشودة.أشتملت عينة البحث على(100) طالبة من جامعة بغداد/كلية التربية للبنات/قسم التاريخ.تم اعداد اداة البحث وهي أستبانة مكونة من (43) فقرة خماسية البدائل هي (موافقة بشدة، موافقة،مترددة،غير موافقة،غير موافقة بشدة) موزعة على

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Publication Date
Sun Jun 11 1989
Journal Name
مجلة متحف التاريخ الطبيعي
The Role of Specific Amino Acids in the Protection of Escherichia coli Against B-Lactam Antibiotics In Vitro
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ABSTRACT The role of specific amino acids namely cysteine, methionine, threonine and asparagine in the protection provided by vamin solution against B-lactam inhibition to E. coli was evaluated in vitro. In minimal medium, Cells were treated with 32 ug/ml of penicillin G, carbencillin, hostacillin, cloxacillin and cephalotin in the presence of specific amino acid supplementations. Deletion of specific amino acids from the media abolished the protection provided by vamin. Threonine was essential for the protection of cells against all tested antibiotics, while cysteine was essential for protection against carbencillin and cephalotin Deletion of methionine or asparagine abolished the protec- tion against carbencillin and to a less extent ce

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Publication Date
Wed Dec 13 2017
Journal Name
Al-khwarizmi Engineering Journal
Thermal Behaviour of Paraffin Wax/Poly Vinyl Alcohol Composite Material
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Polymer additives binder system provides many properties useful in thermal energy storage (TES) then developed the efficient energy storage materials and green strength bodies system.

This paper studies the thermal energy storage property for polyvinyl alcohol (PVOH) / paraffin wax (WPw) blends. To enhance paraffin wax thermal conductivity, PVOH as a material which high conductivity was employed. A fixed weight of Paraffin wax was dispersed with PVOH heterogeneously at different additive weights ratios of PVOH/Pw (50/50, 67/33, 75/25, and 80/20) wt. ratio respectively. The composite material was prepared using wetted pressing method.

Both base materials (polyvinyl alcohol and paraffin wax) were scanned using differential

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Publication Date
Sun Jan 01 2017
Journal Name
المجلة القانونية العلمية المحكمة
المشاكل الاقتصادية المالية للقروض الخارجية من منظور القانون المالي الدولي (دراسة مقارنة)
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Publication Date
Sat Apr 01 2017
Journal Name
Al–bahith Al–a'alami
Gender Profiling of ads in Egyptian Channel MBC
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The study begins with the idea that advertising is a form of culture. Therefore, it is not possible to be surrounded by an actual briefing from one-sided premises such as those that are based solely on the artistic, aesthetic or technical aspects, without linking it to the culture in which it is produced.
The researcher attempts to shed light on the relation between the advertising letter and the concept of gender. And here lies the importance of the research as the content of the ads and their form and implicit values in the text and image reflect the cultural values that must be identified as well as the most important roles that are stereotyped in advertisements and their relationship to the culture of society.
Advertising is

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Publication Date
Wed Apr 01 2009
Journal Name
Journal Of Educational And Psychological Researches
التأثيرات النفسية للعنف المسلح على الاطفال من خلال التعبير الفن في رسومهم
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مشكلة البحث:

يبقى الفن ولا زال في جميع حالات التعاقب البشري ومراحل التطور الانساني الاكثر انطلاقة وتميزاً في التعبير عن واقع الانسان وعن مشاعره وانفعالاته وافكاره ذات الصلة بتأثيرات البيئة المحيطة به.

والفن ولاسيما (الرسم) يمثل وسيلة من وسائل التعبير الفني بل يكاد يكون الرسم وسيلة الانسان الاولى التي عبر فيها بخطوط مرئية عن مجالات حياته وعلاقته بالبيئة التي عاش فيها، ويقينا

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