Application of π receptors to the spectrophotometric determination of naftidrofuryl oxalate in pure form and its pharmaceutical preparation

Three different spectrophotometric methods are developed for the determination of naftidrofuryl oxalate (NAF) in pure form and its pharmaceutical preparation. The methods are based on charge transfer complexation reactions of NAF as n-electron donor with either p-chloranilic acid (PCA) or 2,3-dichloro-5,6-dicyano-1,4-benzoquinone (DDQ) or tetracyano ethylene (TCNE) as π-receptors to give highly colored anion radicals species. The colored products were quantified spectrophotometrically at 515, 588 and 396 nm in PCA, DDQ and TCNE methods, respectively. Under the optimized experimental conditions, Beer's law is obeyed over the concentration ranges of 75.0-300.0, 25.0-150.0 and 15.0- 50.0 μg/mL NAF for PCA, DDQ and TCNE methods, respectively. The proposed methods were applied successfully to the determination of NAF in pure form and its commercial tablets with good accuracy and precision. Statistical comparison of the results was performed using Student's t-test and F-ratio at 95% confidence level, showing that there is no significant difference between the reference and the proposed methods with regard to accuracy and precision. Further, the validity of the proposed methods was confirmed by standard addition technique

Enhancement of Blast Resistance of R.C Beams Using Micro/Nano Silica in Presence of Steel Fibers

An analytical investigation using ABAQUS/Explicit dynamic analysis was carried out to investigate the effect of using Micro/Nano silica in the presence of steel fibers on improving the dynamic response of reinforced concrete beams. According to the results of Magnusson and Hallgren's experimental investigation, the FE model has been well verified and calibrated. The finite element test program was extended further to study the effect of tensile reinforcement ratio by (0.5%, 0.78%, and 1.13%) comparing with the enhancement of concrete’s material on the behavior of tested R.C beams under blast loading. The results where compared in terms of changes in the max deflection at mid-span and flexural toughness values. The results showed that the combination between the compressive and flexural characteristic of concrete is necessary in case of high steel reinforcement ratio to reduce the brittle behavior of the R.C structure element, especially when the R.C elements exposed to a high strain rate loading due to the addition value of (DIF) for steel reinforcement properties which make the element stiffer than usual, compared with quasi-static loading condition.           &nbsp

Comparison of Closure Versus Non-Closure of Buccal Mucosal Graft Harvest Site Outcomes in Urethroplasty

Background: Urethroplasty is open surgical reconstruction of urethral stricture disease and it depends on the site of stricture and the used technique either by excision and primary anastomosis, on-lay repair, stricture excision and augmented anastomosis, flap-based repair, and staged repair. Objective: This study aimed to improve postoperative outcomes of the buccal mucosal graft harvest site by comparing closure versus non-closure of the harvest site. Patient and Methods: This prospective comparative study was conducted on 34 patients with urethral stricture planned to be managed by buccal mucosal graft (BMG) urethroplasty. Those 34 patients attended to urology outpatient clinic at Zagazig university hospital from September 2019 to December 2020. Results: Intraoperatively, two patients were found to have short stricture (approximately 1 cm) with dense spongiofibrosis and they were managed by anastomotic urethroplasty. Post-operative pain was maximal on the first day in both groups but it was more significant in the closure group by the second day. Conclusions: Buccal mucosal graft harvesting is well tolerated by all patients. The pain appears to be worse in the immediate postoperative period after suturing the harvest site

記憶痕跡を維持する生理学的要因

富山大学・富生命博甲第98号・Kareem Mahmoud Ibrahim Abdou・2018/03/23This is the author’s version of the work. It is posted here by permission of the AAAS for personal use, not for redistribution. The definitive version was published in Science on Vol. 360, Issue 6394, 15 Jun 2018 DOI: 10.1126/science.aat3810.Publisher version:Journal of Neuroscience, 38(15) 3809-3822 DOI: https://doi.org/10.1523/JNEUROSCI.3505-17.2018富山大学201

Preparation and Spectral Characterization of New Azo Imidazole Ligand 2-[(2`-Cyano Phenyl) Azo]-4,5-Diphenyl Imidazole and its Complexes with Co(II), Ni(II), Cu(II), Zn(II), Cd(II) and Hg (II) Ions

The preparation and spectral characterization of complexes for Co(II), Ni(II), Cu(II), Cd(II), Zn(II) and Hg(II) ions with new organic heterocyclic azo imidazole dye as ligand 2-[(2`-cyano phenyl) azo ]-4,5-diphenyl imidazole ) (2-CyBAI) were prepared by reacting a dizonium salt solution of 2-cyano aniline with 4,5-diphenyl imidazole in alkaline ethanolic solution .These complexes were characterized spectroscopically by infrared and electronic spectra along with elemental analysis‚ molar conductance and magnetic susceptibility measurements. The data show that the ligand behaves a bidantate and coordinates to the metal ion via nitrogen atom of azo and with imidazole N3 atom. Octahedral environment is suggested for all metal complexes

Preparation and Characterization of Some Metal Complexes with Heterocyclic Azo Ligand (4-SuBAI)

The preparation and characterization of the Cu (II), Co(II), Ni(II), Zn(II), Cd(II), and Hg(II) metal complexes of heterocyclic azo ligand 2-[(4`-sulphamide phenyl) azo] -4,5-diphenyl imidazole (4-SuBAI) have been studied by elemental analysis, FT-IR and UV-Vis Spectroscopic, magnetic moment and molar conductance methods. The analytical data showed that all chelate complexes were prepared with (metal-ligand) ratio of (1:2). The general formula of these complexes was [ML2X2]. nH2O [were L=2-[(4`-sulphamide phenyl) azo]-4,5-diphenyl imidazole and X=Cl, and the octahedral geometry were suggested for these complexes

Phenomenon of Masculinity and Femininity: An Etymological Study

The classification of human beings, animals, and inanimate objects into masculine and feminine is quite important. As language is deemed a vivid picture of life and the society we live in, we have found it influenced by this classification. When we consider the history of the Indo-European, the Semitic and Hamitic languages, we usually find a distinction between masculine and feminine nouns. However, some languages provided a detailed picture of nouns’ gender as they classified nouns into masculine, feminine, and neuter or more. Generally speaking, most common languages classified nouns into Masculine and feminine. Thus, this study was conducted so as to deeply and completely understand this linguistic phenomenon. Moreover, the study focused on noun gender classification in Arabic and investigated the concept of “Al-Asalah” (Etymology). Furthermore, the study showed that ancient Arab linguists were greatly interested in this phenomenon. As part of their interests, Arab linguists wrote various books that pinpointed the need to differentiate between masculine and feminine nouns. Additionally, this study investigated the grammatical categories and their relations to femininity and masculinity. After that, the study linked between Femininity and perceptions then explained types of feminine nouns in Arabic and their morphological markers compared with other Semitic languages.

Significance of Parental Education in Choosing Breast Milk for Infant Feeding at Diyala Province, Hospital- Based Study

Background: exclusive breast feeding is recommended as the optimal way to feed infants especially for the 1st 6 month of life. While the overall breast feeding rate are high in the world all over, it is relatively uncommon among middle eastern women, there may be many factors affecting that. The objective of this study was to identify if the parental (maternal & paternal) education affect the using of breast feeding as the predominant way of infant feeding in people of Diyala province as a trial for discovering the factors affecting breast feeding practice in the society.    Patient & method: This  is a cross- sectional  study conducted at Al- Batool Teaching Hospital for Maternity & Children from 1st of September 2011 – 1st of March 2012.      Children of 1 yr old or less were included, a detailed feeding history & the level of education of both parents were taken.      The sample was divided according to the type of feeding into 2 groups: predominantly breast fed babies & bottle fed babies, parental education level was divided into five classes.  Analysis of data was done by using SPSS version 10, chi- square was applicated to find the association. Results: During the 6 month period of the study, 61 pairs of children were included, 61 of them were predominantly breast fed & the other 61 depended bottle feeding.      Chance of breast feeding was increased with increasing of both maternal & paternal level of education, with p value of (0.07) & (0.011), respectively. Conclusion: Mother’s education may add something positive in their mind towards breast milk practice but it is not enough as a significant factor to encourage beast feeding. The state was different with father’s education, it significantly affect the decision to feed their babies breast milk.