Cytogenetic Effects of Benzene on Human Blood Cells

The study aims to investigate the cytogenetic effect of benzene on human blood cells in vitro using chromosomes abnormalities and mitotic index test. Different concentrations of benzene were added to human blood culture at 24 hour, then cells were arrested at metaphase to detect chromosomes malformations and its proliferation, the result show that benzene causes increased in mitotic index level and different aberrations in chromosomes which increased with benzene concentrations. Keywords: Benzene, Chromosomes abnormalities, Mitotic index

Inhibition of cyclophosphomide mutagenicity using Glycyrrihza glabra root extract

The aims of the studying is using methanolic - water extract of the Glycyrrihza glabra root for inhibition the mutagenicity of anticancer drug by cytogenetic assays in vivo in three interaction between the drug and extract. The result shows that the extract is bioantimutagenesis. The treatment by extract after drug causes increase mitotic index and decrease chromosome aberration and sperm head abnormalities. The thin layer chromatography of the extract show that is contains different polar compounds

Novel salted anionic-cationic polymethacrylate polymer blends for sustained release of acidic and basic drugs

Background: Since a unique matrix tablet formulation that independently controls the release of various drug types is in a great demand, the objective of this research was to develop a sustained release matrix tablet as a universal dosage form using a binary mixture of the salt forms of Eudragit polymers rather than their interpolyelectrolyte complexes. Methods: Tablets were prepared by wet granulation and compressed at different compression forces, depending on drug type. Dissolution tests were conducted using USP XXII rotating paddle apparatus at 50 rpm at 37°C in consecutive pH stages. Results: Tablets containing Ibuprofen (IB) as a model acidic drug and Metronidazole (MD) as a model basic drug showed controlled/sustained release behavior. For IB tablets containing 80% Ibuprofen and 5% (w/w) polymeric combination; the time for 50% of the drug release was about 24 hours compared to 8.5 hours for plain tablets containing 80% IB. In case of MD, the drug release extended to about 7 hours for tablets containing 80% MD and 5% (w/w) polymeric combination, compared to about 1 hour for plain tablets containing 80% MD. In terms of extending the release of medications, the dissolution profiles of the tablets containing polymeric salts forms were found to be statistically superior to tablets prepared by direct compression of the polymers in their powdered base forms, and superior to tablets containing the same polymers granulated using isopropyl alcohol. Conclusion: The findings indicated the significance of combining the polymers in their salt forms in controlling the release of various drug types from matrices

Cytotoxic and Genotoxic Effect of Aflatoxin B1

The aims of study is to determine cytogenetic and genotoxic effect of aflatoxin B1 in vivo, cytogenetic tests are used in studying include chromosome malformation, cell proliferation and plast index test in bone marrow cell in Wight albino rats, the results show that toxin causes Varity in chromosome malformation and increased the rate of it, so it increased in cell proliferation and plast index value compare with negative control

A Review of Control Techniques Future Trends in Wind Energy Turbine Systems with Doubly Fed Induction Generators (DFIG)

تعتبر طاقة الرياح حاليا واحدة من أكثر مصادر الطاقة الخضراء النظيفة الملاءمة على نطاق واسع في العالم. تم تطوير العديد من مبادئ توربينات الرياح بستخدام  المولدات المختلفة لتحويل طاقة الرياح المتاحة إلى طاقة كهربائية. يعد نظام المولد الحثي ذي التغذية المزدوجة DFIG لتوربينات الرياح ذات السرعة المتغيرة نسبيا (VSWT) هو الأكثر ملاءمة لطاقة توربينات الرياح بسبب فوائده العديدة مقارنة بتوربينات الرياح ذات السرعة الثابتة نسبيا (FSWT). تقدم هذه الورقة مراجعة و مقارنة عن طاقة توربينات الرياح المختلفة وملخصًا قيمًا للعمل الأخير المتعلقة بأنظمة طاقة الرياح المختلفة (WECS) لنمذجة DFIG وأقصى نقطة طاقة MPP وأحدث نظام تحكم للتشغيل. ومن ناحية أخرى تم في الدراسة الحالية تقديم مقارنات ومناقشات بين توربينات الرياح المختلفة لتكون مفيدة للدراسات البحثية.Wind energy is currently widely regarded as one of the most favorable green clean sources of energy. Several wind turbine principles with various generator architectures have been evolved to exchange the available wind energy into electric power. The DFIG partial Variable-Speed Wind Turbine (VSWT) system is most proper for wind turbine energy because of its numerous benefits over Fixed-Speed Wind Turbines (FSWT). This paper introduces a comparative review of the different wind turbine conversion energy and a valuable summary of the recent work in the literature on different Wind Energy Conversion Systems (WECS) of a DFIG modeling, Maximum Power Point (MPP), and the latest control system for operation. On the other side, comparisons and discussions between different wind turbines have been presented in the current study to be beneficial for research studies

Di-μ3-chlorido-tetra-μ2-chlorido-di­chloridotetra­kis­(N,N-di­ethyl­ethane-1,2-di­amine-κ2N,N′)tetra­cadmium(II)

In the title compound, [Cd4Cl8(C6H16N2)4], the Cd2+ cations and Cl− anions form M4Cl8 clusters with six of the Cl− ions bridging Cd2+ cations and two being pendant. Each Cd2+ cation has distorted octa­hedral coordination completed by four Cl− ions and two N atoms of the asymmetrical bidentate amino ligand. The cluster consists of pairs of face-sharing hexa­hedra linked by a shared edge

The Threshold of Admission Glycemia as a Predictor of Adverse Events in Diabetic and Non-Diabetic Patients with Acute Coronary Syndrome

Recent studies indicated a high prevalence of hyperglycemia in non-diabetic patients presenting with acute coronary syndrome (ACS). However, the threshold of admission glucose (AG) as a predictor of adverse events in ACS is unclear

Emirati women’s attitudes towards menopause: Implications for health care policy

© The Author(s) 2019. Objectives: To investigate the attitudes of Emirati women aged 30–64 years towards menopause and determine the relationships between these attitudes and their sociodemographic and reproductive characteristics. Study design: A community-based cross-sectional study was conducted with 497 Emirati women attending five primary health care centres in Dubai using a multistage stratified and clustered random sampling technique. Emirati women were interviewed face-to-face via a structured questionnaire with two parts: sociodemographic and reproductive characteristics and the attitudes towards menopause scale. Results: The mean ± S.D. of age was 42.06 years ± 8.716 (median 40 years). Mean age at menopause for the study sample (N = 436) was 49.94 years ± 4.593 (median 50 years). Of the respondents, 36.6% had completed high school, and 41.4% had graduated from university. Approximately, 70.8% of the women were premenopausal, 13.1% were perimenopausal and 16.1% were postmenopausal. Sixty-four percent of the respondents had never used oral contraceptive pills, while 32.9% were past users; 44.6% were employed outside the home. Mean average attitudes score ± S.D. was 2.42 ± 0.26 (minimum score of 1 indicates very negative attitudes, maximum score of 4 indicates very positive attitudes). Statistically significant differences in mean average attitudes score were noted for employment and menopausal status, and mean average attitudes score was positively correlated with age. Premenopausal women held more positive attitudes towards menopause than peri- and postmenopausal women. Conclusions: Emirati women displayed neutral to positive attitudes towards menopause and premenopausal women exhibited more negative attitudes towards menopause than postmenopausal women

In vivo study of antimutagenic and antioxidant activity of Glycyrrihza glabra root extract

The studying was aimed to inhibition the mutagenecity and oxidation of genomic DNA by use methanol-water extract of Glycyrrihza glabra root (GL) against anticancer drug cyclophosphomide in rats by use DNA fragmentation test, the extract characterized by thin layer chromatography TLC, and antioxidant activity by use β- carotene spray, the experiment design to use tow single dose of GL and single dose of the drug in three interaction, extract before, with and after the drug to investigate the mechanism of which extract effect inside cell. Four multiple doses for drug and extract to investigate the accumulation effect in DNA the results show that extract is contain of different polar compound and have antioxidant activity, so the extract is bio-antimutagenesis and poor dismutagenesis activity, the extract can inhibit accumulation effect of mutagenecity and oxidation activity of the drug