OALib Journal期刊

ISSN: 2333-9721




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匹配条件: “F.M. AL-Rehli” ,找到相关结果约502507条。
On α-generalized-δ-closed mappings
A.I. EL-Maghrabi,F.M. AL-Rehli
Journal of Global Research in Mathematical Archives , 2013,
Abstract: In this paper, we introduce a new class of function called On α-generalized-δ-closed mappings continuous. Also, some basic properties of it are studied. The relationships between this function and other types of functions are discussed.
Some forms of α -generalized-δ- compactness
A.I. EL-Maghrabi,F.M. AL-Rehli
Journal of Global Research in Mathematical Archives , 2013,
Abstract: The aim of this paper is to introduce and investigate the concept of αGδO -compact and αGδO -connected spaces which are stronger than αGO -compact [5] and αGO -connected [5] respectively. Some properties of these spaces are studied. (2000) Math. Subject Classification. 54C05, 54C08, 54D05, 54D30 Keywords and Phrases. αGδO -compact and αGδO -connected spaces
F.M. Patel et al
International Journal of Pharmaceutical Sciences and Research , 2012,
Abstract: Cefuroxime is a 2nd-generation cephalosporin and Sulbactam is a β-Lactamase inhibitor. The combination formulation is used for the treatment of lower respiratory tract infection. Two new, simple, accurate and precise UV spectrophotometric methods have been developed and validated for the simultaneous determination of Cefuroxime Sodium (CEF) and Sulbactam Sodium (SUL) in their combined dosage forms. First method is based on simultaneous estimation of Cefuroxime at 279nm and Sulbactam at 259 nm, while other Q‐absorption Ratio method using two wavelengths, 259nm (λmax of SUL) and 272nm (Isoabsorptive point). 0.01 N NaOH was the solvent used in all methods. Cefuroxime Sodium showed linearity in the range of 8-32μg/mL and Sulbactam sodium showed linearity in the range of 4-16μg/mL in all the methods. All methods were validated statistically and recovery studies were carried out. All methods were found to be accurate, precise and reproducible. These methods were applied to the assay of the drugs in marketed formulation, which were found in the range of 98.0% to 100.0% of the labelled value for both Cefuroxime and Sulbactam. Hence, the methods herein described can be successfully applied in quality control of combined pharmaceutical dosage forms.
Effects of Synbiotics on the Pathological Features of Experimental Septic Peritonitis in Rats
F.M. Al-Azawy,H.I. Al-Sadi
Journal of Animal and Veterinary Advances , 2012, DOI: 10.3923/javaa.2010.932.938
Abstract: The aim of this study was to investigate the protective activity of the synbiotics Biomin Imbo and yoghurt against septic peritonitis in rats. Cecal Ligation and Tip Resection (CLTR) model was followed to induce fecal peritonitis. Effects of the synbiotics on survival after CLTR, acute phase proteins, pathological lesions, the Total and Differential Leukocytic Count (TLC and DLC) of the peritoneal fluid, the TLC and DLC of the peripheral blood and mean bacterial growth in the peritoneal cavity were studied. It was found that neither Biomin Imbo nor yoghurt in the dose schedule used in this study prevented lethality at the end of the first and third day post induction (p.i.) of CLTR. No significant change was found in the values of the serum c-reactive protein in the various groups. Fibrinogen was elevated significantly in the groups in which septic peritonitis was induced. Gross and microscopic lesions that were observed in groups subjected to CLTR were comparable with those of bacteremia. There were generalized sepsis and fibrinous adhesions that were converted to fibrous adhesions after the 7th p.i. day. No significant change was noted in the cytologyof the peritoneal fluid in the various groups at the end of the first p.i. day. However, the TLC of the peripheral blood was significantly higher in rats of the experimental groups (with septic peritonitis) than in the control group. Yoghurt and to alesser extent Biomin Imbo were found to lower insignificantly the bacterial growth in the peritoneal cavity at the end of the first p.i. day.
Confidence Interval for the Mean of a Contaminated Normal Distribution
M.O. Abu-Shawiesh,F.M. Al-Athari,H.F. Kittani
Journal of Applied Sciences , 2009,
Abstract: In this study, we calculate confidence intervals for the mean of a normal data and a contaminated normal data. Some robust estimators against outliers are also considered to construct confidence intervals that are more resistant to outliers than the Student t confidence interval. The confidence intervals of these estimators are computed and compared with each other for normal and contaminated normal data to determine which is better. The performance of these confidence intervals is evaluated and compared by calculating the estimated coverage probability, the average width and the standard error by using simulation. Sps t followed by MAD t are recommended at any rate of contamination, while Student t is not preferred at all for contaminated data and the sample mean and the sample standard deviation are not good choices for constructing confidence interval, but highly recommended for normal data without outliers as expected.
Nucleophilic Cleavage of Substituted Benzyltrimethylsilanes using Tetraalkylammonium Fluoride in DMSO-H2O Media
F.M. Mahmoud,M.A. Al-Nuri,J.A. Daraghmah
Journal of Applied Sciences , 2003,
Abstract: The nucleophilic cleavage of substituted benzyltrimethyl-silanes in DMSO-H2O media using tetraalkylammonium fluoride, TAAF, has been studied. The observed rate constants, pseudo first order rate constants, activation, and thermodynamic parameters have been reported. A mechanism for such cleavage has been proposed. The results fit well Hammett equation. The reaction constant, p, value of (6.7) has been reported. The p value is consistent with a substantial negative charge developing in the transition state.
Solvent Effect on Nucleophilic Cleavage of p-Chlorobenzyltrimethylsilane Using Tetrabutylammonium Fluoride in ROH-DMSO Media
F.M. Mahmoud,M.A. Al-Nuri,J.A. Daraghmah
Journal of Applied Sciences , 2004,
Abstract: The rates of cleavage of p-chlorotrimethylsilane were measured in various ROH-DMSO media (R: Me, Et, i-Pr, t-Bu, CF3CH2 -, HOCH2CH2-) and the results were reported. These results have shown that the rates of cleavage decrease as the mole ratio of ROH increases.
Our policy in intraventricular colloid cysts. Experience of 31 operated cases.
A.V. Ciurea,F.M. Brehar,Al. Tascu,A. Iliescu
Romanian Neurosurgery , 2011,
Abstract: The colloid cyst of the third ventricle is abenign tumor situated in the anterior partof the third ventricle. This lesion representsless than 1% of the primary brain tumorbeing more common in young adults.Because of its particular location, thecolloid cyst can obstruct the Monroforamen, producing intermittentintracranian hypertension with headache,vomiting and visual disturbances. Thirtyonecases of colloid cysts have beenoperated using the microsurgical approachin the First Neurosurgical Department ofEmergency Clinical Hospital “Bagdasar-Arseni” between January 1995 andDecember 2008. The age of the patientswas between 17 and 46 years, with amedium age of 31 years. The follow-upperiod was between 9 months and 7 years.In three cases TTA approach has beenperformed. One of the cases developed avenous cerebral infarct after this procedure,but the patient had finally a good outcome.For 28 patients the transcortical approachhas been performed. In all cases the totalresection of the colloid cyst has beenperformed. Of all 31 cases, one casepresented a transitory hemiparesis, twocases showed negativist behavior, and threecases had transitory memory disturbances.There was no intraventricular hemorrhageafter colloid cyst resection in our series. Inconclusion, according to our policy, themicrosurgical approach is the besttreatment for third ventricular colloid cystsbecause of its main advantages comparedwith the endoscopic approach: thepossibility of total resection of the cyst, thegood control of the bleeding source duringthe procedure, and a better exposure of theanatomical landmarks.
Effect of DNA Hypomethylation on Genotoxicity and Apoptogenicity of Sodium Arsenite in Laboratory Mice
Saud A. Alarifi,Saad Alkahtani,F.M. Abou Tarboush,Ahmed Al-Qahtani
Pakistan Journal of Biological Sciences , 2009,
Abstract: The present study aims to evaluate the effect of DNA hypomethylation state on genotoxicity and apoptogenicity induced by sodium arsenite (NaAsO2) in normal adult male SWR/J mouse bone marrow cells. Animals were treated with intraperitoneally (i.p.) injected with (2.25, 4.50 or 9 mg kg-1 b.wt. of NaAsO2 which represent 0.25, 0.50 or 1 of LD5, respectively) and killed 24 h later. Another different group of male mice was treated with three doses of 5-Azacitidine (5-AzaC), 5 mg kg -1 b.wt. each dose and 3 h intervals between them. NaAsO2 administered after 6 days of the last dose. The three single doses of sodium arsenite alone significantly (p<0.05) increased the rate of total structural Chromosomal Aberrations (CAs), rate of Sister Chromatid Exchanges (SCEs), micronucleus (MNs) formation, PARP and Lamia-A degradation and apoptosis as compared with the negative control. The combined treatment with hypomethylation agent 5-AzaC significantly increased the rate of SCEs induced by NaAsO2 at low dose. Moreover, this treatment significantly increased the rate of polyploidy at all combined used doses. Furthermore, this treatment induced apoptosis at all used doses. The present study has shown that DNA hypomethylation had a negative effects represented in rate of (CAs), polyploidy, PARP degradation and apoptosis induced by (NaAsO2). On the other hand, DNA hypomethylation had positive effects represented in decreas rate of pulverized chromosomes, centromeric attenuations, (SCEs), (MNs) formation, prevent Lamina-A degradation and apoptosis.
Growth, yield and antioxidant profile of pumpkin (Cucurbita pepo L.) leafy vegetable as affected by NPK compound fertilizer
Journal of soil science and plant nutrition , 2012, DOI: 10.4067/S0718-95162012005000001
Abstract: pumpkin young leaf is an underutilized leafy vegetable in the southwestern nigeria. the objective of this study is to provide information on the influence of npk fertilizer on the agronomic performance and antioxidant concentration of pumpkin leafy vegetable for the purpose of enhancing its cultivation and popularizing its utilization. the experiment was conducted in 2007 and 2008, at the teaching and research farm, obafemi awolowo university, ile-ife, nigeria. the experiment was a randomized complete block design with 3 replications. compound fertilizer, npk /15:15:15/ was used and added as ring dressing in four levels; 0, 90, 180, 270 kg/ ha-1. data were recorded for several growth and leaf yield parameters. at the seventh week after planting, the harvested young leaves extracts were analyzed for antioxidant activities and antioxidant phenolic compounds concentration using different antioxidant assays. the significant highest estimates for vine length, leaves number, stem diameter, number of branches and number of tendrils per plant and total young leaf yield were resulted from plants treated with 180 and 270kg/ha-1. it is concluded that 180 kg/ha-1 of npk fertilizer is required for optimal yield and antioxidant composition of pumpkin leafy vegetable.

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