@article { author = {Mustafa, Walid and Rizk, Sawsan and Saleh, Sanaa and Saif, Rania and Hassan, Fatma}, title = {Production of Embroidered Cushion from the Safavid Period Using Different Methods on Leather}, journal = {Journal of Scientific Research in Science}, volume = {32}, number = {part 1}, pages = {1-12}, year = {2015}, publisher = {Ain Shams University, Faculty of Women for Arts, Science and Education}, issn = {2356-8364}, eissn = {2356-8372}, doi = {10.21608/jsrs.2015.18349}, abstract = {The Aim of the work in this  paper is to produce a cushion leather both by handmade and machine embroidery, The design which used was from the safavid period (animal type). 100% cotton threads have been used for sewing the whole designs by the two methods (manual and machine).Needles have been used for sewing designs by the two methods (manual and machine). The machine which used is Tajima TCMX mixed type which speed reach to 700rpm, needles number was 9. The numbers of heads used were 15 for producing machine embroidery design. The material which was used in this project was leather.Analysis and discussion which include the problems were mentioned, finally the conclusion obtained were presented.  }, keywords = {Embroidery,leather tools,safavid arts,machine embroidery}, url = {https://jsrs.journals.ekb.eg/article_18349.html}, eprint = {https://jsrs.journals.ekb.eg/article_18349_1e30d0355007507f3e0d6870d3a60173.pdf} } @article { author = {Mohamed, Ayat and Eladwi, Maha and Kotb, Rehab}, title = {Novel Designs Inspired from Egyptian Environment for Hotel Uniform.}, journal = {Journal of Scientific Research in Science}, volume = {32}, number = {part 1}, pages = {13-28}, year = {2015}, publisher = {Ain Shams University, Faculty of Women for Arts, Science and Education}, issn = {2356-8364}, eissn = {2356-8372}, doi = {10.21608/jsrs.2015.18350}, abstract = {    A uniform is a set of standard clothing worn by members of an organization while participating in that organization's activity. In this study the uniforms of hotel (coats, aprons, bows, trousers, etc.) were performed by using different materials (linen, gabardine and popline fabrics) available in Egyptian markets. There designs inspired from Nubia folklore. The fabrics used were biopolished using cellulase enzyme to improve their quality (fuzzing and pilling). Physico-mechanical properties were measured. Dyeing of finished fabrics was carried out using reactive dyes.    }, keywords = {uniform,cellulosic fabric,biopolishing}, url = {https://jsrs.journals.ekb.eg/article_18350.html}, eprint = {https://jsrs.journals.ekb.eg/article_18350_90792f7019be7c21c57d253e397cd227.pdf} } @article { author = {Kheiralla, Z. and Abou El Nour, M. and Mabrouk, M. and Okda, A. and Saker, Ebtehag}, title = {Evaluation of antimicrobial activity of Lactobacillus acidophilusNA-5 grown in cheese whey against foodborne pathogens.}, journal = {Journal of Scientific Research in Science}, volume = {32}, number = {part 1}, pages = {29-42}, year = {2015}, publisher = {Ain Shams University, Faculty of Women for Arts, Science and Education}, issn = {2356-8364}, eissn = {2356-8372}, doi = {10.21608/jsrs.2015.18352}, abstract = {          The antimicrobial activity of metabolites produced by Lactobacillus acidophilusNA-5 was tested in vitro against some food pathogenic microorganisms; it was determined by agar well diffusion method. Bacillus cereus, Sallmonella typhimurium no.22 and Candida albicans were selectedfrom seven food borne pathogens for their sensitivity towards L. acidophilusNA-5 metabolites when grown in Man Regosa Sharpe media (MRS). Lactobacillus acidophilusNA-5 was grown in different dilution of the selected waste material (cheese whey) as the sole carbon source to determine the concentration required for the induction of highest antimicrobial activity against the tested pathogenic organisms. The different dilutions of cheese whey suggested were (25:75, 50:50,75:25 and the original cheese whey). As well as the original cheese whey which showed the most inhibitory effect against the selected pathogens.              Further experiments were done to optimize the cheese whey media, by adding different concentrations of nutritional elements. pH and temperature were also tested for optimization.   Results revealed that 1% peptone, 0.4% beef extract, 0.6% yeast extract and 0.5% sorbitol were the optimum concentrations which showed highest activities against the growth of selected pathogens.             The optimum pH and temperature showed that the most antimicrobial activity were at 6.2 and 37°C, respectively. From the results obtained, the formulated cheese whey waste material might be used as a less expensive culture media for the production of beneficial metabolites by L. acidophilusNA-5 with remarkable antimicrobial activities.  }, keywords = {Lactobacillus acidophilus,cheese whey,antimicrobial activity,Optimization,Nutrient supplements,pathogens}, url = {https://jsrs.journals.ekb.eg/article_18352.html}, eprint = {https://jsrs.journals.ekb.eg/article_18352_e05bf8b64be6762c89527b315c8ae4b9.pdf} } @article { author = {El-Ayouty, Y.M. and EL-Shimy, A.A. and Mustafa, M.G. and Said,, A.A}, title = {Biodiesel production with high quality from Dunaleilla salina under optimization factors according to ASTM.}, journal = {Journal of Scientific Research in Science}, volume = {32}, number = {part 1}, pages = {43-57}, year = {2015}, publisher = {Ain Shams University, Faculty of Women for Arts, Science and Education}, issn = {2356-8364}, eissn = {2356-8372}, doi = {10.21608/jsrs.2015.18355}, abstract = {MH medium was reprepared with the depriviation of nitrogen to 0.5g-1 KNO3 ,0.5g-1 MgCL2 and elevated the concentration of NaCL to 2.25M then, inoculated with Dunaliella salina in outdoor glass aquarium for three months. The culture was injected with 0.6 l-1co2 /day. The alga was semicontinuosly collected every four days. The collected samples were dried and used for biodiesel preparation. Results indicated that alga grown in modified medium shifted the biosynthesis of fatty acids towards the saturation level rather than unsaturated one. Since the relative percentages of saturated fatty acid (SFA) was 92.2% more than its corresponding control (basal medium) 65.6%. Analysis of  fatty acid profile obtained through gas liquid chromatography (GLC) revealed that the fatty acid methyl esters obtained from treated alga  (FAME) contains  palmitic acid (C16:0, 54%),myristic(C14:0, 23%) and stearic (C18:0, 3.2% ) with the high ratios rather than their corresponding ratios in control sample. Physical and chemical properties of biodiesel extracted from modified medium including cetane number, kinematics viscosity, flash point, pour point and cloud point are coping perfectly with ASTM. ASTM  is an international agency, known until 2001 as the American Society for Testing and Materials. Meaning that biodiesel of Dunaliella salina treated with modified mediumis a high quality biodiesel according to ASTM.  }, keywords = {Biodiesel,Dunaleilla salina,ASTM – Saturated Fatty acids- FAME}, url = {https://jsrs.journals.ekb.eg/article_18355.html}, eprint = {https://jsrs.journals.ekb.eg/article_18355_b85d5e013b41211b1f0e66e05c43ca3d.pdf} } @article { author = {Moustafa, Elham and Kheiralla, Zeinab and Maklad, Soheir and Ashour, Sanaa and Raoof, Mona}, title = {Prevalence of oral Candidiasis and Risk Factors in Diabetic Pateints}, journal = {Journal of Scientific Research in Science}, volume = {32}, number = {part 1}, pages = {58-77}, year = {2015}, publisher = {Ain Shams University, Faculty of Women for Arts, Science and Education}, issn = {2356-8364}, eissn = {2356-8372}, doi = {10.21608/jsrs.2015.18356}, abstract = {Oral candidiasis has a strong association with diabetes. This study investigated the prevalence of candidiasis, effects of age and denture wearing on the isolation rate of Candida, virulence factors such as (germ tube (GT), gelatinase assay, phospholipase (PL) activities, biofilm (BF) formation) of different Candida species isolated from 40 confirmed diabetic patients with oral candidiasis and susceptibility of Candida isolates to antifungal agents.  The prevalence of candidiasis was (67%) which is more prevalent in middle age (40-60) years (65%) and among females (65%). Sixty Candida isolates were identified among which Candida albicans represented (53.3%), followed by C. glabrata (31.7%), C. tropicalis (10%) and C. krusei (5%). In denture wearers, the isolation rate of all Candida species was 94.7% while in non denture wearers was 53.7%. The minimun inhibitory concentrations (MICs) of ketoconazle as the lowest concentration of antifungal that inhibited 100% of C. krusei while MIC for flucytosine that inhibited 90.6% and 84.2% of C. albicans and C. glabrata respectively, also the MIC for itraconazole and voriconazole that inhibited 93.5% and 81.2% of C. albicans. The MIC of amphotericin B was defined as the lowest drug concentration causing 100% inhibition of all Candida species. Candida albicans and C. tropicalis isolates were positive for all the virulence factors while C. glabrata and C. krusei were negative for GT, gelatinase and PL activities. C. krusei were positive only for BF formation. InConclusion, Candida spp. in the oral cavity of diabetic patients are potentially pathogenic and can participate in infectious and inflammatory processes since they exhibit most of the virulence factors and resistance to most antifungals. Denture wearing, female sex and middle age are among the risk factors. Controlling serum glucose level and oral hygiene are essential in diabetics.  }, keywords = {Diabetes mellitus,Denture wearer,Candida spp,Antifungal susceptibility,Virulence factors}, url = {https://jsrs.journals.ekb.eg/article_18356.html}, eprint = {https://jsrs.journals.ekb.eg/article_18356_318f1f1d432f1ecdfd97f589b61659b7.pdf} } @article { author = {Abou El– Kheir, W. and Farag, A. and AbdelKader, S.}, title = {Production of Microalgae Biomass Using Vinasse as Cultivation Medium.}, journal = {Journal of Scientific Research in Science}, volume = {32}, number = {part 1}, pages = {78-106}, year = {2015}, publisher = {Ain Shams University, Faculty of Women for Arts, Science and Education}, issn = {2356-8364}, eissn = {2356-8372}, doi = {10.21608/jsrs.2015.18357}, abstract = {        Microalgae are one of the potential food sources in the future. Many authors have investigated the potential of wastewater as cultivation medium for microalgae, but utilization of sugarcane digested vinasse as cultivation medium for algae has not yet been reported. The purpose of this study was to test the potential of vinasse as an alternative source of nutrients for culturing microalgae.  One pure strain of a green alga (Chlorella vulgaris) and two pure strains of blue green algae (Spirulina platensis and Nostoc commune) were used for this purpose. The three microalgae were grown on six various concentrations of vinasse from 0.01% to 0.03 and from 0.1% to 0.3% for 21 and 35 days. The present investigation showed that digested vinasse contained ammonia (NH3), nitrate (NO3), phosphate (PO4), Calcium (Ca), Magnesium (Mg), Sodium (Na), Potassium (K) and high Electron Conductivity (EC). The highest productivity of biomass by Chlorella vulgaris (368 x 106 mg/L) was observed when using 0.3% vinasse medium,  by Nostoc commune (1400 x 106/L mg/L) when using 0.01% medium and by Spirulina platensis (200 x 106 mg/L) when using 0.02% medium. The period of 35 days was better than 21 days for the growth of all examined species. No algal growth was observed when using higher concentrations of vinasse (from 1% to 6%). The present results show that it is possible to integrate the culturing of microalgae with the sugarcane industry product (vinasse) by means of anaerobic digestion.  }, keywords = {phytoplankton,vinasse,cultivation media,industrial effluents}, url = {https://jsrs.journals.ekb.eg/article_18357.html}, eprint = {https://jsrs.journals.ekb.eg/article_18357_de427c8856ee69015471495ae593ee96.pdf} } @article { author = {Farrag, Hala and Shehata, Mona and Abdallah, Nagwa and Awad, Ebthag}, title = {Synergistic effect of certain natural permeabilizers with antimicrobial agents on outer membrane of some multidrug Gram- negative pathogenic bacteria}, journal = {Journal of Scientific Research in Science}, volume = {32}, number = {part 1}, pages = {107-121}, year = {2015}, publisher = {Ain Shams University, Faculty of Women for Arts, Science and Education}, issn = {2356-8364}, eissn = {2356-8372}, doi = {10.21608/jsrs.2015.18358}, abstract = {Infections caused by resistant pathogens result in significant morbidity and mortality and contribute to rising healthcare cost worldwide. The major mechanisms of resistance are permeability barrier of the outer membrane of Gram- negative bacteria as it slows down antibiotic entry into the periplasm. One approach to the restoration of antibiotic activity is to administer them in conjunction with non-antibiotic compounds that depress resistance mechanism. The present study aimed to study the effect of gallic acid, thymol, chitosan, sorbic acid, and EDTA on outer membrane permeability of irradiated and non-irradiated strains to enhance the activity of different antibiotics against multidrug resistance microorganisms. The plasmid profile analysis of some selected strains before and after irradiation was also determined. Various resistance rates were recorded for the tested antimicrobial agents. Percentage resistance of all the tested Gram-negative isolates to different beta-lactam antibiotics exceeded 50% in case of piperacillin (84.85%),cefoperazone / sulbactam (63.64%),cefoxitin (60.61%) while showed (100%) resistance in case of erythromycin.  }, keywords = {Gram- negative bacteria,outer membrane,natural permeabilizers,gamma radiation}, url = {https://jsrs.journals.ekb.eg/article_18358.html}, eprint = {https://jsrs.journals.ekb.eg/article_18358_99e8c21732f2fb4d68bbb1f2ef8861c9.pdf} } @article { author = {Abdel maksoud, Doaa, and Ashour, Sanaa, and Abo- Ghalia, Hoda,}, title = {Optimization of environmental parameters on the decolorization of Reactive Brilliant Blue dye by yeast isolates from textile effluent}, journal = {Journal of Scientific Research in Science}, volume = {32}, number = {part 1}, pages = {122-146}, year = {2015}, publisher = {Ain Shams University, Faculty of Women for Arts, Science and Education}, issn = {2356-8364}, eissn = {2356-8372}, doi = {10.21608/jsrs.2015.18359}, abstract = {    The present study was conducted to investigate the decolorization and degradation of Reactive Brilliant Blue dye using yeasts isolated from the effluent treatment of the textile industries and the identified yeast strains under optimal conditions using the standard methods. Among twenty-four yeast strains, only five yeasts have the ability to decolorize the dye (2.8%). Three yeast strains; Rhodotorula glutinis, Candida utilis(1) and Candida sphaerica as well as the local two yeast isolates which were identified as Rhodotorula rubra and Cryptococcus albidus showing high decolorization rate, they were used for the decolorization of Reactive Brilliant Blue dye in a medium containing glucose and yeast extract as a best carbon and nitrogen sources, the pH of medium varied among the yeasts, C. utilis(1), R. rubra  and C. albidus was 4, while C. sphaerica and R. glutinis was 6 and5.5, respectively. All yeast strains were incubated for 18 h at 25˚C except C. utilis(1) at 37˚C. C. utilis(1), R. glutinis and C. sphaerica showed high decolorization rate under static aerobic conditions. While R. rubra and C. albidus showed decolorization under static anaerobic conditions. According to the potentiality of yeast strains; C. sphaerica could achieved a removal ratio of 68.83%, while C. albidus 68.40%, R. rubra 67.75%, R. glutinis 66.88% and C. utilis(1) 63.85% of Reactive Brilliant Blue dye in a concentration of 10 mg/L. The highest biodegradation of the dye by the five yeast strains was confirmed by using plain distilled water as a decolorization medium. In conclusion, yeast strains could be used for the biodegradation of dye- polluted waters including rate of degradation of anthraquinone dye.  }, keywords = {yeast,Reactive Brilliant Blue dye,Decolorization,Optimization}, url = {https://jsrs.journals.ekb.eg/article_18359.html}, eprint = {https://jsrs.journals.ekb.eg/article_18359_6ff6be1addfc91fe6611f449ff5ce661.pdf} } @article { author = {Soliman, Magda and Mohsen, Nada and Rizk, Rehab}, title = {Genetic variation within and among four species of Lotus L. (Fabaceae)}, journal = {Journal of Scientific Research in Science}, volume = {32}, number = {part 1}, pages = {147-175}, year = {2015}, publisher = {Ain Shams University, Faculty of Women for Arts, Science and Education}, issn = {2356-8364}, eissn = {2356-8372}, doi = {10.21608/jsrs.2015.18360}, abstract = {          Karyotype characters, mitotic metaphase chromosomes, monoploid idiograms, karyograms and pollen abortion of Lotus creticus L., Lotus glaber Mill., Lotus halophilus Boiss. and Lotus peregrinus L. were investigated. Analysis of somatic metaphases showed that the chromosome numbers of these taxa were 2n=28 for L. creticus, 2n=12 for L. glaber, 2n= 14 for both L. halophilus and L. peregrinus. Karyotype asymmetry was estimated by many different methods, the total form percent (TF %), the Rec and Syi indices, the intrachromosomal asymmetry index (A1) and interchromosomal asymmetry index (A2). In this study, there is a variation in the frequency of pollen fertility and abortive pollen grains of the Lotus species. The anatomical characteristics of leaf and stemof Lotus species were made. Various genetic markers have been used to estimate the genetic variability within and among the four Lotus species collected from ten different accessions. Protein profile of Lotus species were studied by polyacrylamide gel electrophoresis (SDS-PAGE) technique and generated seventeen bands, six of them monomorphic and eleven polymorphic bands. Five tested primers were used for RAPD technique, a total of 33 well-defined and scorable RAPD bands were obtained as a result of fingerprinting of Lotus species, 12 bands were common for all species and 21 were polymorphic. Perceptual mapping (PERMAP) used for the combination of taxa and attributes PERMAP-Biplot distinguished the taxa into three groups.  }, keywords = {Lotus species,Karyotype,idiogram,karyotype asymmetry,genetic variation,RAPD,SDS-PAGE,anatomy}, url = {https://jsrs.journals.ekb.eg/article_18360.html}, eprint = {https://jsrs.journals.ekb.eg/article_18360_28b98a1ca29cc1b3e44cda8e07252f6f.pdf} } @article { author = {Hussien, Ghadeer and El Mokadem, Mehereshan. and youssry, Amany. and Mekawey, Amal.}, title = {In vitro Study on the antimicrobial potentialities of two edible mushrooms (Agaricus bisporus) and (Pleurotus ostreatus)}, journal = {Journal of Scientific Research in Science}, volume = {32}, number = {part 1}, pages = {176-191}, year = {2015}, publisher = {Ain Shams University, Faculty of Women for Arts, Science and Education}, issn = {2356-8364}, eissn = {2356-8372}, doi = {10.21608/jsrs.2015.18361}, abstract = { The current work was undertaken to evaluate in vitro the antimicrobial activity of two edible Mushrooms (Basidiomycetes & macrofungus), Pleurotus osteratus and Agaricus bisporus , either fresh or air dried  were assyed using aqueous and organic solvents extracts. The assays were done against a panel of standard pathogenic bacteria and fungi. Agar well diffusion assay showed that gram (+ve) bacteria were more sensitive to mushroom extracts than gram (-ve) bacteria especially Bacillus polymexa, Staphylococcus aureus  while in case of fungi, Aspergillus flavus & Fusarium moniliforme were strongly inhibited by either extracts of mushrooms . Aqueous extracts   of  either Fresh and dried fruiting bodies of Pleurotus ostreatus showed high antimicrobial activity than Agaricus bisporus extracts ,The minimum inhibitory concentration (MIC) for the two mushroom extracts were ranged between 20-40 µg/ml for pathogenic bacteria and 30-50 µg/ml for fungi. Thus indicated that the daily intake of mushroom can provide a natural covering isolation of antibiotic to fight against the common pathogenic organisms.  }, keywords = {Pleurotus osteratus,Agaricus bisporus,Antimicrobial activity MIC,and Mushroom}, url = {https://jsrs.journals.ekb.eg/article_18361.html}, eprint = {https://jsrs.journals.ekb.eg/article_18361_390e48a314605d318700c9cc36a01693.pdf} } @article { author = {Kandil, Abdelhakim and Ezzat, Amir and Mahmoud, Mamdoh and Soliman, Mohamed and Saad, Ebtissam}, title = {Sorptive flotation of Eu(III)-loaded clays from aqueous solutions}, journal = {Journal of Scientific Research in Science}, volume = {32}, number = {part 1}, pages = {192-203}, year = {2015}, publisher = {Ain Shams University, Faculty of Women for Arts, Science and Education}, issn = {2356-8364}, eissn = {2356-8372}, doi = {10.21608/jsrs.2015.18486}, abstract = {          The present paper investigates the removal of  Eu(III) from aqueous solutions by a sorptive flotation process. Eu(III) removal is achieved by adsorption onto  bentonite and kaolinite followed by floatation using sodium dodecyl sulfate(SDS) and cetyltrimethylammonium bromide(CTAB) collectors. The effect of adsorption parameters (pH, contact time, clay weight, and initial Eu(III) concentration) as well as flotation parameters (collector and frother concentrations, and bubbling time) on the removal efficiency of Eu(III) were studied. Results show that Eu(III) ions are removed efficiently (∼95%) at pH = 4 after 1h shaking with clays and 15min floatation  }, keywords = {sorptive flotation,radioactive waste,europium,Bentonite,Kaolinite}, url = {https://jsrs.journals.ekb.eg/article_18486.html}, eprint = {https://jsrs.journals.ekb.eg/article_18486_1dc4a141a1ffe4f97177988fb90ad40a.pdf} } @article { author = {Youssef, Nadia and Shaban, Seham and Ibrahim, Fatma and Mahmoud, Aya}, title = {Catalytic Degradation of Eriochrome Black T Dye By Fenton and Photo-Fenton Reaction}, journal = {Journal of Scientific Research in Science}, volume = {32}, number = {part 1}, pages = {204-216}, year = {2015}, publisher = {Ain Shams University, Faculty of Women for Arts, Science and Education}, issn = {2356-8364}, eissn = {2356-8372}, doi = {10.21608/jsrs.2015.18489}, abstract = {The oxidation with Fenton and photo-Fenton reaction in homogeneous system is an effective technology for destruction of a large number of different dyes.  The effects of different parameters like the concentrations of H2O2, the concentration of FeSO4, the initial concentration of the dye and the pH of the solution on the degradation of eriochrome Black T (EBT) dye were carried out  to investigate the process’s optimal operational conditions with the best results at low cost. A suitable operating conditions were selected as: the concentration of H2O2 1.14×10-2 M, the concentration of FeSO4 1.85×10-4 M, the initial concentration of EBT dye 9.34×10-5 M and the pH equal 3.2 at room temperature. In the given conditions, more than 98.37% of degradation efficiency was achieved within 60 min. of the reaction. Photo-Fenton reaction was investigated and it was found that the degradation efficiency increased from 94 % by Fenton reaction to 99.83% by photo-Fenton reaction at 15 min. The kinetic study indicated that the degradation kinetics of EBT dye followed the second-order kinetics.}, keywords = {azo dye,Eriochrome Black T (EBT) dye,Degradation,Fenton and photo-Fenton reaction}, url = {https://jsrs.journals.ekb.eg/article_18489.html}, eprint = {https://jsrs.journals.ekb.eg/article_18489_529df0d0f881e5b01bd41baaae677f7b.pdf} } @article { author = {Moloukhia, H. and Hegazy, W. and Abdel-Galila, E. and Mahrousa, S}, title = {Removal of Eu3+, Ce3+, Sr2+ and Cs+ ions from radioactive waste solutions by modified activated carbon prepared from coconut shells}, journal = {Journal of Scientific Research in Science}, volume = {32}, number = {part 1}, pages = {217-237}, year = {2015}, publisher = {Ain Shams University, Faculty of Women for Arts, Science and Education}, issn = {2356-8364}, eissn = {2356-8372}, doi = {10.21608/jsrs.2015.18494}, abstract = {The modified surface of activated carbon (MSAC) was prepared from the agricultural byproduct coconut shells, by physical and chemical activation processes, and it was tested for the treatment of simulated radioactive waste solutions included some metal ions, namely Europium, Cerium, Strontium, and Cesium. The structural morphology and composition of the modified surface activated carbon coconut shells (MSAC) were evaluated by SEM, XRD, FTIR, XRF, and elemental analysis. The solubility experiments show that the prepared sorbent (MSAC) has reasonably good chemical stability. The influence of solution pH, contact time, adsorbent dosage, adsorption temperature, initial metal ion concentration and interfering substances such as sodium chloride salt and ethylenediaminetetraacetic acid (EDTA), on the adsorption performance of Eu3+, Ce3+, Sr2+ and Cs+ ions on to the prepared sorbent (MSAC)  were examined by batch technique. The saturation capacity of the MSAC for the studied metal ions was  found to be very high as compared to the break-through capacity, and it was found to be 136.84, 85.55, 69.85 and 60.00 mg g -1 for Eu3+, Ce3+, Sr2+ ,and Cs+ ions, respectively. Using the Van,t Hoff  linear plot, the thermodynamic parameters, ΔHo, ΔSo ,and ΔGo were also evaluated. . Results show that studied sorbent (MSAC) is efficient to remove more than 98.43, 90.7, 38.65, and 37.4%, of Eu 3+, Ce 3+, Sr 2+ and Cs + ions respectively, at 180 min equilibrium time. The developed sorbent is considered as a good replacement technology for removal of Eu3+, Ce3+, Sr2+ ,and Cs+ ions from radioactive waste solutions due to its low-cost , good efficiency, high saturation capacity, as well as easy handling with no or small amount of secondary sludge.    }, keywords = {Coconut shells,Modified activated carbon Adsorption,radionuclides,Waste solutions,Thermodynamic parameters}, url = {https://jsrs.journals.ekb.eg/article_18494.html}, eprint = {https://jsrs.journals.ekb.eg/article_18494_3be59165077c69a41fafd441aca4a17c.pdf} } @article { author = {Ahmed, Mona and Attia, M. and Hefny, H. and Ayoub, Manara and Mohammed, Mona}, title = {New Photo probe for Assessment of Norepinephrine in Pharmaceutical Formulation and Serum Samples}, journal = {Journal of Scientific Research in Science}, volume = {32}, number = {part 1}, pages = {238-253}, year = {2015}, publisher = {Ain Shams University, Faculty of Women for Arts, Science and Education}, issn = {2356-8364}, eissn = {2356-8372}, doi = {10.21608/jsrs.2015.18809}, abstract = {           A simple, sensitive and selective spectroflourimetric method for the determination of Norepinephrine (NE) is developed. The method depends on the enhancement of the fluorescence intensity of the photo probe at 351 nm in presence of different concentrations of NE in acetonitrile, at λex = 290 nm at pH 5.01. The enhancement of the emission band of the photo probe at 351nm was found to be directly proportional to the concentration of NE with a dynamic range of 1 x 10-5 – 4.4 x 10-8 mol L−1 and detection limit of 2.3 x 10-8 mol L−1. This method is simple, accurate and can successfully be applied to the determination of NE inpharmaceutical formulation and serum samples with remarkably satisfactory results.  }, keywords = {norepinephrine,Photo probe,enhancing,Fluorescence Intensity}, url = {https://jsrs.journals.ekb.eg/article_18809.html}, eprint = {https://jsrs.journals.ekb.eg/article_18809_523d0adc4a7bdd154d3a639c5f33f6db.pdf} } @article { author = {Shehata, Adel and Kishar, Essam and Ahmed, Doaa and Yamani, Randa}, title = {Preparation and Certification of Low Alloy Steel Reference Materials for Spectrometric Analysis}, journal = {Journal of Scientific Research in Science}, volume = {32}, number = {part 1}, pages = {254-269}, year = {2015}, publisher = {Ain Shams University, Faculty of Women for Arts, Science and Education}, issn = {2356-8364}, eissn = {2356-8372}, doi = {10.21608/jsrs.2015.18810}, abstract = {Matrix certified reference materials (CRMs) are versatile tools to support quality, correctness and credibility of measurement results. CRMs are used to provide the traceability of the measurement results to the SI unit. Seven low alloy steel certified reference materials were developed by the national institute of standards (NIS), Egypt.  Homogeneity is studied using x-ray fluorescence spectrometer (XRF) and optical emission spectrometer (OES). The characterization of RMs was performed using independent chemical methods as gravimetric methods, x-ray fluorescence spectrometry, optical emission spectrometry and atomic absorption spectrometry.  Both the assigned values and their associated uncertainty were calculated by weighted mean approach after the statistical analysis of the results of measurements for the homogeneity of variances, equality of means, normality of data and outliers.  }, keywords = {Low alloy steel,Homogeneity,Reference materials,Traceability}, url = {https://jsrs.journals.ekb.eg/article_18810.html}, eprint = {https://jsrs.journals.ekb.eg/article_18810_45223f19d043858af8cb4f776d5eab4d.pdf} } @article { author = {Senna, Magdy and Helal, Reham and Mostafa, Tahia and El-Naggar, Abdel Wahab}, title = {Kinetic studies on the thermal decomposition of gamma-irradiated poly(vinyl alcohol (PVA)/methyl cellulose (MC) blends}, journal = {Journal of Scientific Research in Science}, volume = {32}, number = {part 1}, pages = {270-290}, year = {2015}, publisher = {Ain Shams University, Faculty of Women for Arts, Science and Education}, issn = {2356-8364}, eissn = {2356-8372}, doi = {10.21608/jsrs.2015.18811}, abstract = {  Poly(vinyl alcohol)/ methyl cellulose (PVA/MC) blends, at different ratios were prepared into films by solution casting using, water as a common solvent, and gamma irradiated at various doses. Thermogravimetric analysis (TGA) and differential scanning calorimetry (DSC) were used to study the thermal properties of gamma irradiated PVA/MC blends. It is expected that these methods would enable to understand the effect of gamma irradiation on the mechanism of thermal decomposition. The kinetic parameters such as energy of activation (Ea) and regression r2 for the thermal decomposition were determined by three different methods. In the present work, the Coats-Redfern, Broido and Horowitz-Metzger methods were applied. The results indicated that the Ea and r2 values of the gamma irradiated PVA/MC blends as determined by the three methods were comparable.  }, keywords = {Poly(vinyl alcohol),Methyl cellulose,gamma radiation,Thermal properties,Kinetic studies}, url = {https://jsrs.journals.ekb.eg/article_18811.html}, eprint = {https://jsrs.journals.ekb.eg/article_18811_499b75171578aa1270edaefe0753c515.pdf} } @article { author = {Ahmed, M. and Attia, M. and Abd-Elzaher, M. and Farag, A. and Youssef, A. and Sheta, S.}, title = {Synthesis and Characterization of Tb(III)-acetylacetone complex and its analytical application for hydrochlorothiazide determination in pharmaceutical preparation and biological fluids}, journal = {Journal of Scientific Research in Science}, volume = {32}, number = {part 1}, pages = {291-307}, year = {2015}, publisher = {Ain Shams University, Faculty of Women for Arts, Science and Education}, issn = {2356-8364}, eissn = {2356-8372}, doi = {10.21608/jsrs.2015.18812}, abstract = {Tb(III)-Acetylacetone complex  was prepared and characterized by elemental analysis, UV/Vis, FTIR, 1H-NMR spectroscopy, mass spectroscopy, conductance and magnetism. The results indicated that the complex composition is [Tb(ACAC)2(NO3)(EtOH)2(H2O)2]. The prepared complex was used as optical sensor for hydrochlorothiazide determination in pharmaceutical tablets and biological fluids (serum and urine). The hydrochlorothiazide can remarkably enhance the luminescence intensity of the complex in DMSO at λex/em = 285/545 nm and pH 6.3. The dynamic ranges found for the determination of hydrochlorothiazide concentration are 3.6 x 10-9 to 4.0 x 10-6 mol L-1, and the limit of detection (LOD) and quantitation limit of detection (LOQ) are 1.3 ×10−9 and 4.2 x 10-9 mol L-1, respectively.  }, keywords = {Tb(ACAC),Optical Sensor,Luminescence Intensity,Enhancement,Hydrochlorothiazide}, url = {https://jsrs.journals.ekb.eg/article_18812.html}, eprint = {https://jsrs.journals.ekb.eg/article_18812_f0cd1e40ba5d20232e7d8e1362fae2c4.pdf} } @article { author = {Hamed, Amira and Saad, Gamal and Abdelrazek, Fathy and Elsabee, Maher and El-Begawy, Salah El-Din}, title = {Synthesis & Characterization of Modified Epoxy Resins and Novel E-Glass/ Spectra Reinforced Composites}, journal = {Journal of Scientific Research in Science}, volume = {32}, number = {part 1}, pages = {308-327}, year = {2015}, publisher = {Ain Shams University, Faculty of Women for Arts, Science and Education}, issn = {2356-8364}, eissn = {2356-8372}, doi = {10.21608/jsrs.2015.18813}, abstract = {This work involves the development of a novel siliconized epoxy interpenetrating system using DGEBA LY556 epoxy resin  as base, hydroxylterminated polydimethylsiloxane (HTPDMS) as modifier,γ-aminopropyltriethoxysilane (γ-APS) as crosslinking agent and dibutyltindilaurate (DBTDL) as catalyst. Triethylenetetramine (TETA) was used as curing agent for the above system. Electrical resistant glass (E-glass) and Spectra ultra high molecular weight polyethylene (UHMWPE) reinforced composites are fabricated by hand-lay-up technique using siliconized epoxy matrix systems. The effect of the percentage of siloxanes and the two fibers on the thermal and morphological characteristics of the siliconized epoxy polymer composites are studied using thermogravimetric analysis (TGA), differential scanning calorimetry (DSC). From the study, it is observed that the thermal stability of epoxy systems is enhanced when siloxane is incorporated to them. Morphological studies show that E-glass fiber reinforcement has better intermolecular adhesion to epoxy resin than Spectra reinforcement due to the presence of ionic sites.  }, keywords = {Siliconized epoxy systems,Interpenetrating network,E-glass/spectra composites,Thermal stability,Glass transition temperature}, url = {https://jsrs.journals.ekb.eg/article_18813.html}, eprint = {https://jsrs.journals.ekb.eg/article_18813_bc0163f4e78d8e4a185da2fc262f3daa.pdf} } @article { author = {Raymond Souaya, Eglal and El-Hadidi, Eman and Mohammed, Amr and Mahsoub, Walaa}, title = {Plasma albumin m RNA as anon invasive Marker to predict liver injury in chronic Hepatitis C and Hepatocellular carcinoma patients}, journal = {Journal of Scientific Research in Science}, volume = {32}, number = {part 1}, pages = {328-338}, year = {2015}, publisher = {Ain Shams University, Faculty of Women for Arts, Science and Education}, issn = {2356-8364}, eissn = {2356-8372}, doi = {10.21608/jsrs.2015.18814}, abstract = {Analysis of circulating nucleic acids in plasma, such as cell free RNA offers an avenue for non-invasive monitoring of a variety of physiological and pathological conditions. Because albumin is the most abundant protein in the body and is synthesized by the liver, the current study was designed to assess plasma albumin mRNA (ALB mRNA), as a non-invasive diagnostic marker of liver injury in chronic HCV (CHC) and hepatocellular carcinoma (HCC). The study included 50 patients, 20 patients had CHC and 20 were of HCC as well as 10 healthy control subjects. Patients were subjected to clinical examination, abdominal ultrasonography, CT for HCC cases and laboratory investigations including liver function tests, AFP and plasma albumin mRNA by Real Time-PCR. Patients with CHC and HCC have a significant increase in their plasma ALB mRNA than controls; the higher level was in HCC cases. ALB mRNA in plasma is liver specific; it is increased in liver disease suggesting liver pathology and may be more diagnostically sensitive than alpha-fetoprotein and Alanine amino transaminase (ALT) serum levels. Thus, future studies should assess if the plasma concentration of ALB mRNA may be used as therapy monitoring.  }, keywords = {Albumin mRNA,HCC,CHC}, url = {https://jsrs.journals.ekb.eg/article_18814.html}, eprint = {https://jsrs.journals.ekb.eg/article_18814_c45abbdfa2dbaf43e19cfe59a9d12671.pdf} } @article { author = {Ahmed, Doaa and Mohamed, Maha and Ebrahim, Ayaallah}, title = {Effects of Nanometakaolin on the Physico-Chemical Characteristics of Various Blended Cement Pastes}, journal = {Journal of Scientific Research in Science}, volume = {32}, number = {part 1}, pages = {339-355}, year = {2015}, publisher = {Ain Shams University, Faculty of Women for Arts, Science and Education}, issn = {2356-8364}, eissn = {2356-8372}, doi = {10.21608/jsrs.2015.18816}, abstract = {The physico-chemical characteristics of various blended cement pastes are studied in presence of nanometakaolin (2, 4, 6 and 8%) and in absence and presence of some industrial wastes such as ground clay bricks, cement kiln dust and silica fume. These characteristics are investigated at different hydration times (1-180 days) via determination of the compressive strength, total porosity and chemically combined water content. In addition, the phase composition of the formed hydrates is investigated through X-ray diffraction analysis. The IR spectra of hardened cement pastes are also recorded. The results indicate that the presence of nanometakaolin accelerates the hydration of the pastes which exhibit higher compressive strength than the neat ordinary Portland cement, and improves some other characteristics of the different pastes.  }, keywords = {Nanometakaolin,Blended cement,Pysico-chemical characteristics of blended cement}, url = {https://jsrs.journals.ekb.eg/article_18816.html}, eprint = {https://jsrs.journals.ekb.eg/article_18816_d4adb4f6dd78cb3c93833f238659cf23.pdf} } @article { author = {Abd El-Hady, Feriala and Kheiralla, Zeinab and Abd- Elsalam, Shimaa and Asker, Shereen,}, title = {Studies on water quality changes in River Nile and electric power plants treatment water at different localities in River Nile.}, journal = {Journal of Scientific Research in Science}, volume = {32}, number = {part 1}, pages = {356-373}, year = {2015}, publisher = {Ain Shams University, Faculty of Women for Arts, Science and Education}, issn = {2356-8364}, eissn = {2356-8372}, doi = {10.21608/jsrs.2015.18820}, abstract = {The aim of this study was to determine the seasonal variations inphysicochemical and bacteriological parameters between inlet River Nile water and filtration water of Shoubra El-Khiema (SH) and Damietta (D) electric power plants. Total organic carbon (TOC) ranged between the highest values of 29.55-18 and the lowest values of 28.95-21 mg/l at (SH) and (D) River Nile water respectively. In filtration water, TOC ranged between 27.5-20- and 21.79 - 16 mg/l at (SH) and (D) filtration water respectively. Mean of electric conductivity values exceeded permissible limit 417 mg/l at (D) River Nile but it still within limits of filtration water at two plants. Sulphate mean values ranged between 39.5,43 and 19.7,26 mg/l at (SH) and (D) River Nile water respectively and it increased in filtration water to 77, 56 and 34, 41mg/l at (SH) and (D) respectively, than permissible limits at two plants. The bacteriological analyses recorded the highest values of TC, FC, FS and Pseudomonas sp. during summer at inlet River Nile of two plants, but decreased in filtration water at two plants.  }, keywords = {physicochemical,bacteriological parameters,River Nile,Filtration water}, url = {https://jsrs.journals.ekb.eg/article_18820.html}, eprint = {https://jsrs.journals.ekb.eg/article_18820_5475061c22dd3457e99ca631567fee63.pdf} } @article { author = {Sayeda, M. and Betiha, M. and Ahmed, H. and Abdooa, M. and youssefb, N. and Menoufya, M.}, title = {Skelton isomerization of n-heptane under the effects of Pt content, particle size and reduction technique}, journal = {Journal of Scientific Research in Science}, volume = {32}, number = {part 1}, pages = {374-390}, year = {2015}, publisher = {Ain Shams University, Faculty of Women for Arts, Science and Education}, issn = {2356-8364}, eissn = {2356-8372}, doi = {10.21608/jsrs.2015.18836}, abstract = {A synthetic approach is developed to produce highly disperse, low loading (0.1- wt%, 0.3-wt% and 0.6- wt%) Pt nanoparticles incorporated montmorillonite (MMT) with average diameter of less than 4.0 nm using economical reduction processes. This was achieved by using formalin followed by chemical reduction with hydrogen to produce Pt nanoparticles incorporated MMT support. The physicochemical characterizations of the Pt nanoparticles incorporated MMT were performed by elemental analysis, FTIR, XRD, N2-adsorption and transmission electron microscopy. The results show that the Pt nanoparticles were uniformly distributed throughout the MMT support with Pt loading of less than 4.0 nm and the size of Pt is dependant on its loading. The catalytic activity for heptane isomerization reaction was evaluated over the prepared catalysts. At 0.1-wt% of Pt, the catalyst shows high activity for heptane isomerization, while at high Pt loading shoed high tendency to cracking. The preparation procedure is simple and favorable for a variety of metal nanoparticles syntheses for catalysis applications.  }, keywords = {montmorillonite,n-heptane hydroisomerization,effect of Pt}, url = {https://jsrs.journals.ekb.eg/article_18836.html}, eprint = {https://jsrs.journals.ekb.eg/article_18836_cbe1107d375556e37d2e85b2c1862523.pdf} } @article { author = {Wahaba, L. and zayed, H. and Yahia, I. and Yousifa, N.}, title = {Structural and Optical properties of Some Metals Doped CdO Synthesized by Sol-Gel Method}, journal = {Journal of Scientific Research in Science}, volume = {32}, number = {part 1}, pages = {391-402}, year = {2015}, publisher = {Ain Shams University, Faculty of Women for Arts, Science and Education}, issn = {2356-8364}, eissn = {2356-8372}, doi = {10.21608/jsrs.2015.18837}, abstract = {Nanoparticles with crystallite size in the range 8.23-27.88 nm of transition metals (TM= Cr, Cu, Co, Ni, Mn, and Fe) doped (CdO) films were deposited by the sol-gel spin coating method. The strain, the grain size, lattice parameters and dislocation density were estimated from the XRD patterns. The calculated band gap for CdO is 2.302 eV and is increased with doping.}, keywords = {Metal Oxide Semiconductors,TM- doped CdO,nano-structure,XRD,Spectrophotometer,Optical constants}, url = {https://jsrs.journals.ekb.eg/article_18837.html}, eprint = {https://jsrs.journals.ekb.eg/article_18837_278615b235ae9b2f8ab620a102c494f2.pdf} } @article { author = {Abd El-Azeem, Soha and El-Ghanam, S. and Kamh, S. and Soliman, F.}, title = {Investigation and Improvement of the Electrical Performance of Silicon Solar Cells}, journal = {Journal of Scientific Research in Science}, volume = {32}, number = {part 1}, pages = {403-412}, year = {2015}, publisher = {Ain Shams University, Faculty of Women for Arts, Science and Education}, issn = {2356-8364}, eissn = {2356-8372}, doi = {10.21608/jsrs.2015.18838}, abstract = {                The present paper focuses on the investigation and improvement of the electrical performance of photovoltaic mono-crystalline silicon solar cells. Where, temperature effect was studied in details, where cells loss were observed, analyzed, and several trials to reduce its value were investigated applying passive and active aluminum heat sinks. Also, introduction of thermoelectric generators was proved to pronouncedly enhance the cells performances. The dependences of the open-circuit voltage, maximum output power, short-circuit current, and power conversion efficiency on temperature were observed. Where, their values were reported to be in the order of - 2.3 mV/oC, -0.59 mW/oC, + 0.22 mA/oC, and 0.065%/oC, measured for free PV, and cell temperature of  39.0 oC. The maximum output power and conversion efficiency of the cell were shown to be reduced down to - 0.53 mW/oC and -0.058%/oC, measured for the solar cell/thermoelectric hybrid system. Moreover, for solar cell/thermoelectric/passive heat sink hybrid system, their values were shown to be - 0.52 mW/oC and -0.057%/oC. Finally, for the solar cell/thermoelectric/active heat sink hybrid system, the values reach -0.34 mW/oC and 0.037 %/oC, respectively.  }, keywords = {silicon,Solar cell,photovoltaic effect,thermoelectric generator,open-circuit volt- age,short-circuit current,Efficiency,and aluminum heat sink}, url = {https://jsrs.journals.ekb.eg/article_18838.html}, eprint = {https://jsrs.journals.ekb.eg/article_18838_2dc0ba8cd3927bbdecb6b33bc2b304fb.pdf} }