eng
Ain Shams University, Faculty of Women for Arts, Science and Education
Journal of Scientific Research in Science
2356-8364
2356-8372
2016-09-01
33
part1
22
45
10.21608/jsrs.2016.14747
14747
Using Micro Algea As Food Additive For Reducing Viral Infection In Poultry
W. Abou El-Kheir
1
M. El-Sheekh,
2
A. Abd El-Razek
3
S. Nasif
4
F. Rida
elmahdy_hossam@yahoo.com
5
Botany Department, Faculty of Women for Arts, Science and Education, Ain Shams University, Cairo, Egypt
Botany Department ,Faculty of Science , Tanta University
Gentic Department ,Faculty of Agriculture, Ain Shams University
Central Laboratory for the control of veterinary Biological.
Botany Department, Faculty of Women for Arts, Science and Education, Ain Shams University, Cairo, Egypt
The present study was conducted to investigate the effect of Spirulina platensis and Chlorella vulgaris separately and a mixture of both on reduction of viral infection in poultry. In two farms in Monofia Gavernrate where chicks were infected with avain influenza virus (H5N1) . The infected chicks lossed ability of having feed and drink in the two farms also affect the quality and quantity of eggs (eggs not normal in size ,have bad quality , egg shells was very fragile and cracked ) this was in the second farm . The experiment started by adding 1ml/L from a mixture of Spirulina platensis and Chlorella vulgaris (50:50) in the drinking water dially for one week .At the end of the experiment the performance of the infected chicks flock was improved at the first day of application of treatment and all over the treatment course, where the mortality rate was sharply , the feed and water consumption were increased and the vitality of the chickens was also increased . Also ,the boiler chicks in the second farm started laying eggs with a good quality and quantity . In the laboratory an experiment was done to investigate the effect of Spirulina platensis extract on 200 one day old Cubb broiler infected chicks (obtained from El-Ahram Poultry Company) . Chicks were fed on commercial ration. The boiler chicks were divided into 4 groups 50 chicks each in a separate battery. Feed and water are available ad libitum. First group has Spirulina platensis extract and vaccinated with Egy Flu vaccine at 14 day old .Second group has vaccination only ,third group has Spirulina platensis extract only. Fourth group neither having treatment with Spirulina platensis extractnor vaccinated with Egy Flu vaccine (at 14 day old).All the chicks were vaccinated gainst broiler viral diseases using IB Primer,clone vaccine (against ND),Inactivated vaccine against Newcastle disease (HIPRAVIAR-BPL2) and Gumboro 228 E strain .All groups Challenge by inoculating each chicken via intra nasal rout with 0.1 ml of the Highly Pathogenic Avian Influenza (HPAI) H5N1) virus containing 106 EID50. The first group of broiler chicks that received Spirulina extract (3 times per week )and vaccination with (Egy Flu vaccine) were significantly higher immune response (haemagglutination inhibition) (HI antibody titer ) against Egy Flu vaccine than the second group that received Egy Flu vaccine only. Both G1 and G2 showed significantly higher HI antibody titer than G3 and G4 . Also, the results revealed that the treated boiler chicks with Spirulina extract and vaccinated with S/C at 14 day old with Egy Flu vaccine chicks ( all over 10 days post challenge with HPAI H5N1 virus) gave high resistance to Avian Influenza (HPAI) H5N1) virus and became as normal in having feed and drinking water and their was one dead chicken only during the period of the experiment .The broiler chicks that neither treated with Spirulina extract nor vaccinated with Egy Flu vaccine were unable to be feed but they have to drink water only and the number of dead chicks increased day by day during the period of the experiment .
https://jsrs.journals.ekb.eg/article_14747_fa86afb1b7cfb93abcea937f6290c67a.pdf
Spirulina platensis
Chlorella vulgaris
performance
Immune system
characteristic
laying eggs of broiler chicks
eng
Ain Shams University, Faculty of Women for Arts, Science and Education
Journal of Scientific Research in Science
2356-8364
2356-8372
2016-09-01
33
part1
317
336
10.21608/jsrs.2016.15298
15298
Original Article
Investigating the Influence of Weft Knitting Parameters on Physical and Mechanical Fabric Characteristics.
A. Aldardery
1
H. A-Aleem
2
E. EL-okda
3
C. Al-zean
ca-power@hotmail.co.uk
4
Polymers metrology& Technology Lab. National Institute of Standards
Home Economics Dept (Textile & Clothing). Women's college-Ain Shams University
Home Economics Dept (Textile & Clothing). Women's college-Ain Shams University
Home Economics Dept (Textile & Clothing). Women's college-Ain Shams University
The testing of knitting fabrics before being used in the garment industry is an issue of great importance to improve the quality of the final product. This research aims tostudy the effect of knitting variables, eg. Fabric structure, loop length, yarn count, and yarn material on thickness, bursting strength and air permeability of some weft knitted fabrics. For this purpose three knitted structures (single jersey, rib1×1, interlock 1×1) were knitted with two levels of loop lengths, two yarn counts, and two different yarn material ( cotton100%, cotton polyester 50/50)for each structure to produce twenty –four samples; eight samples for each structure. The findings of this study revealed that thickness and bursting strength values for interlock fabrics is generally higher than rib fabrics, and both of them are higher than single jersey fabrics,It was found that the fabrics with the same structure knitted with cotton-polyester yarns shows high bursting strength values more than the fabrics knitted with cotton yarns . It was also found that the fabrics with the same structure knitted using short loop length are thicker and gives higher fabric bursting strength values and air permeability of the fabric decreased remarkably. For the yarn count the fabrics knitted with finer yarn count are thinner, gives the lowest fabric bursting strength value while air permeability of the fabric increased. This research helpsgarments manufacturing to understand the nature of weft knitted fabrics and factors that are affected by these fabrics, which can be controlled to select a suitable raw material for the final product.
https://jsrs.journals.ekb.eg/article_15298_e9d8cb971a3c2d7a6daee21b45ec9e1b.pdf
weft -knitted fabric
Bursting Strength
air permeability.Knittingstructure
eng
Ain Shams University, Faculty of Women for Arts, Science and Education
Journal of Scientific Research in Science
2356-8364
2356-8372
2016-09-01
33
part1
337
358
10.21608/jsrs.2016.15311
15311
Original Article
Bending propertiesof cotton fabrics produced from different spinning methods
Ahmad Salman
1
Sanaa Saleh
2
Mamdouh Sharkas
3
Enas Sakr
ema_falcon@hotmail.com
4
Spinning, weaving and knitting department, college of applied art, Helwan University, Cairo, Egypt.
Clothing and Textile department, College of Women, Ain Shams University,Cairo, Egypt.
Clothing and Textile department, College of Women, Ain Shams University,Cairo, Egypt.
Clothing and Textile department, College of Women, Ain Shams University,Cairo, Egypt.
The tailoring quality of fabrics and design of garment as well as automated handling are greatly influenced by the fabric physical and low stress mechanical properties such as bending, tensile, shear and compression. Objectivemeasurement of these characteristics leads to making accurate decision in selecting fabrics in order to minimize the tailoring problems and improve the quality of finished garment.In this study, it has been focused on bending properties of fabrics produced from different spinning methods. Twenty-seven woven fabrics are produced using different types of spun yarns (combed, carded and open end spinning systems). Three different of woven structures (plain1/1, twill 2/2 and satin4) are used with three different weft densities (18,21 and 24).These fabrics have been tested on FAST-2 bending meter. From the results we can observed the fabrics obtained from combed spun yarns have the lower bending length and lower bending rigidity than carded spun yarns. And the fabrics obtained from the open end spun yarns have the highest bending length and bending rigidity.
https://jsrs.journals.ekb.eg/article_15311_1c2b9be8389c205d7aa6e26916c1e39a.pdf
bending length
bending rigidity
ring spinning
Open end spinning
bending meter
eng
Ain Shams University, Faculty of Women for Arts, Science and Education
Journal of Scientific Research in Science
2356-8364
2356-8372
2016-09-01
33
part1
359
369
10.21608/jsrs.2016.15319
15319
Original Article
Suitability of conductive knit fabric for sensing human breathing
Aliaa A. Mohamed
ziz.alya@gmail.com
1
Mohamed Ezzat
2
Z. Abdel Megeid
3
Ahmed Saeed
4
Faculty of Women Ain Shams University, Textile and Clothing, Cairo, Egypt
National Research Center, Textile Research Division, Dokki, Cairo, Egypt
National Research Center, Textile Research Division, Dokki, Cairo, Egypt
Electronics, Communications and Computer engineering, Helwan University, Cairo, Egypt
This paper studies the suitability of conductive knit fabric in order to produce a reliable breathing sensor. Conductive single jersey knit fabrics was manufactured from silver coated nylon yarn with different production parameters (stitch type (ST)- combination ratio (CR) and number of wales (NW)). A cyclic tester was built to simulate the breathing mechanism of a human being and to explore the influence of these parameters on the electric resistance. The results show that there is a significant effect on the resistance value by the difference in ST and CR, while the width of the sample doesn’t show a significant effect.The best sample suited for breathing sensor is the one with increase in width (NW), less CR and normal stitch.
https://jsrs.journals.ekb.eg/article_15319_83d61167857850959de3dca5ae26de67.pdf
conductive fabric- breathing sensor- combination ratio –stitch type
eng
Ain Shams University, Faculty of Women for Arts, Science and Education
Journal of Scientific Research in Science
2356-8364
2356-8372
2016-09-01
33
part1
370
395
10.21608/jsrs.2016.15321
15321
Original Article
Using design elements to meet Back Irregularities fashion challenge via biofinished fabrics
Wafaa El -Sayed
1
Maha Eladwi
2
Rehab Kotb
3
Wesam Hamoud
4
Textile and Clothing, Faculty of Women for Arts, Science and Education, Ain Shams University, Cairo, Egypt .
Textile and Clothing, Faculty of Women for Arts, Science and Education, Ain Shams University, Cairo, Egypt .
Textile and Clothing, Faculty of Women for Arts, Science and Education, Ain Shams University, Cairo, Egypt .
Textile and Clothing, Faculty of Women for Arts, Science and Education, Ain Shams University, Cairo, Egypt
Back Irregularities can impose a number of serious challenges side effects such as protruding abdomen, curved back and uneven shoulders. Nevertheless, finding clothes that fit and are reasonably flattering for those with hunched backs still remains an issue of comfort and an overall sense of well-being. The present study aims to hide and fix the appearance of the physical changes that may be caused by back deformity in order to create the appearance of a straight line from head to toe and direct the eye away from any deformity. By using design elements and accessories which are two important fashion components that can help to achieve this goal. In this study, natural cellulosic fabrics (linen, gabardine and poplin) were biopolished using cellulase enzyme to improve their surface properties and quality (fuzzing and pilling) such as physico-mechanical properties were measured and determined. Additionally, dyeing of finished fabrics was carried out using different classes of reactive dyes. Then, create six designs with alterations in pattern and used biopolished fabrics which dye and tie, hand drawing, patch work, stencil and embroidery to meet Back Irregularities fashion challenge.
https://jsrs.journals.ekb.eg/article_15321_69c254e112061fbc8f5aed7fa37023b2.pdf
Back Irregularities
protruding abdomen
curved back
biopolishing
eng
Ain Shams University, Faculty of Women for Arts, Science and Education
Journal of Scientific Research in Science
2356-8364
2356-8372
2016-09-01
33
part1
552
564
10.21608/jsrs.2016.15326
15326
Original Article
The ameliorative effect of dietary barley and malted barley on hyperlipidemic rats
Madiha Hafney
1
Sahar Galal
2
Fatma Khalil
3
Biochemistry and Nutrition Department, Faculty of Women for Arts, Science and Education, Ain Shams University
Biochemistry and Nutrition Department, Faculty of Women for Arts, Science and Education, Ain Shams University
Biochemistry and Nutrition Department, Faculty of Women for Arts, Science and Education, Ain Shams University
The present study was carried out to investigate the efficiency of barley or malted barley in ameliorating lipid profile and oxidative stress alteration caused by high fat, high cholesterol diet (HFHC).Adult male albino rats were divided into six groups; each group consisted of 12 rats. Group (1) Served as control, fed on balanced diet (without treatment);groups (2) and (3), rats were fed on balanced diet containing 10 %barley and malted barley respectively, group (4),rats were fed on HFHC (50 g lard+10 g cholesterol/kg diet) to induce hypercholesterolemia. Groups (5) and (6), rats were fed on HFHC contains 10% barley and malted barley respectively. Resultsreflected a significant depletion in all parameters of lipids profile and the percentage of change reached 22.04 % 24.87%, 25.19 %, 40.34 % , 34.11 % , 54.37 % , 54.89 % for Total lipid (TL), Total cholesterol(TC) ,Triacylglycerols (TAG) , Low density lipoprotein cholesterol (LDL-C) ,Very low density lipoprotein cholesterol (VLDL-C) ,Atherogenic index(AI) and Risk factor ratio (RF) respectively when compared with HFHC group treated with barley with an exception of high density lipoprotein cholesterol (HDL-C) showed a significant increase when compared with HFHCgroup. On the other hand the results showed a significant increment in reduced glutathione level (GSH) in blood and liver. The percentage of changes in GSH in liver showed13.82 % and 21.47 % as well as, super oxide dismutase (SOD) activity by 33.05 % and 42.39 %. while a significant decrement in malondialdehyde (MDA) in serum and liver, the percentage of decrement in liver by 38.47% and 46.36% in groups fed on HFHC diet and treated with barley or malted barley respectively when compared with group fed on HFHC(p<0.05).It can be concluded that barley or malted barley can reduce lipidsprofile and oxidative stress but malted barley is more effective than barley.
https://jsrs.journals.ekb.eg/article_15326_40fe5f6eb1900121b144404c0ba860e4.pdf
Barley –Malted barley –Lipids profile–High fathigh cholesterol diet
Oxidative Stress
eng
Ain Shams University, Faculty of Women for Arts, Science and Education
Journal of Scientific Research in Science
2356-8364
2356-8372
2016-09-01
33
part1
565
584
10.21608/jsrs.2016.15327
15327
Original Article
Anti-hyperlipidemic and Anti-hypercholesterolemic effect of aqueous extract of guava (Pisidum guajava Linn.) leaves on rats
Hanan Abd El-Wahab
1
Sahar Galal
2
Fatma Abd El-Razik
3
Dina Sayed
dinahesham90@gmail.com
4
Biochemistry and Nutrition Department, Women’s Collage for Art, Science and Education, Ain Shams University, Cairo, Egypt.
Biochemistry and Nutrition Department, Women’s Collage for Art, Science and Education, Ain Shams University, Cairo, Egypt.
Biochemistry and Nutrition Department, Women’s Collage for Art, Science and Education, Ain Shams University, Cairo, Egypt.
Biochemistry and Nutrition Department, Women’s Collage for Art, Science and Education, Ain Shams University, Cairo, Egypt.
The aim of the present study is to investigate the ameliorative effect of aqueous guava leaf extract (AGLE) with different doses (200, 350, 500 & 650 mg/kg b.wt.) taken p.o in rats fed high fat high cholesterol (HFC) diet for 8 weeks. The four doses of AGLE cause a significant decrease in food intake, final body weight, gain in body weight, serum TAG, VLDL-C, risk ratio as well as liver TAG and malondialdehyde level. Also doses of AGLE (350,500 and 650 mg/kg b.wt.) cause a significant decrease in relative liver weight, serum AST and LDL-C but a significant increase in HDL-C and leptin hormone. While doses (500 & 650 mg/kg b.wt.) cause a significant decrease in serum TC. The highest dose causes a significant decrease in serum ALT and adiponectin hormone. Total liver cholesterol was decreased significantly in groups given (200 & 350 mg/kg b.wt.) but no significant decrease in doses (500 & 650 mg/kg b.wt.). As well as ghrelin hormone does not show significant decrease in the four treated groups fed HFC diet and given AGLE compared to rats fed HFC diet only.
https://jsrs.journals.ekb.eg/article_15327_fd60a86a7ddd39525f2d562f69107bbe.pdf
Guava leaves
HFC diet
Rats
adiponectin
leptin
ghrelin
eng
Ain Shams University, Faculty of Women for Arts, Science and Education
Journal of Scientific Research in Science
2356-8364
2356-8372
2016-09-01
33
part1
46
64
10.21608/jsrs.2016.15466
15466
Prevention of adhesion and surface growth of orthopedic implant microbialinfection by surface modification using antibiotics and irradiated hydroxyapatite
Hala Farrag
1
HodaH El-Hendawy
2
Seham, El-Tablawy
3
Nora Hassan
nora_fayez2011@yahoo.com
4
National Center for Radiation Research and Technology (NCRRT), Department of Drug Radiation Research, Atomic Energy Authority, Egypt
Department of Microbiology, Faculty of Science, Helwan University., Egypt.
National Center for Radiation Research and Technology (NCRRT), Department of Drug Radiation Research, Atomic Energy Authority, Egypt
National Center for Radiation Research and Technology (NCRRT),Department of Drug Radiation Research, Atomic Energy Authority, Egypt
One of the major drawbacks in the use of biomedical materials is the occurrence of biomaterial-centered infections. After implantation, the host interacts with a biomaterial by forming a conditioning film on its surface and an immune response towards the foreign material. When microorganisms can reach the biomaterial surface they can adhere to it. Adhesion of microorganisms to an implant is mediated by their physico-chemical surface properties and the properties of the biomaterial surface itself. Subsequent surface growth of the microorganisms will lead to a mature biofilm and infection, which is difficult to eradicate by antibiotics.Surface treatment to modify device properties has been used to increase the bio-compatibility and decrease the susceptibility to bacterial adhesion.
In this study a total 52 clinical samples were isolated from implant infection. The microorganism were identified by API system .the susceptibility test was carried out for all isolates to detect multidrug resistant isolates and biofilm formation test was carried out to detect positive slime producing isolates . Antimicrobial activity of irradiated Hydroxyapatite (HAp) was carried out against positive slime producing isolates
The synergistic interaction between irradiated HAp and some antibiotics was carried out to evaluate the effect of irradiated HAp and antibiotics on microbial growth.
The microbial adherence on 316stainless steel chips as biomaterial was detected before and after coating with irradiated HAp and / or antimicrobial agent and it was noticed that the number of adherent strains decreased after coating with irradiated HAp and /or antimicrobial agent. HAp was exposed to gamma irradiation at doses levels 15 and 25kGy to study the effect of radiation on the antimicrobial activities of HAp. The results revealed that the doses 15 and 25kGy increased this activity but the 25KGy showed higher antimicrobial activity.
https://jsrs.journals.ekb.eg/article_15466_cac4d3ecbc04bbbe87362c809b11d053.pdf
316 Stainless Steel chips
Gamma Irradiation
Microbial adherence
biofilm formation
Hydroxyapatite and Bone infection
eng
Ain Shams University, Faculty of Women for Arts, Science and Education
Journal of Scientific Research in Science
2356-8364
2356-8372
2016-09-01
33
part1
65
83
10.21608/jsrs.2016.15468
15468
Floristic and Vegetation Study on the Main Weed Communities Associated with Wheat (Triticum aestivum L.) Crop
Ahmed Khalafallah
1
Tarek Galal
2
Mona Naim
3
Manar Soliman
4
Botany Department, Faculty of Women for Art, Science and Education, Ain-Shams University
Botany and Microbiology Department, Faculty of Science, Helwan University
Department, Faculty of Women for Art, Science and Education, Ain-Shams University
Botany Department, Faculty of Women for Art, Science and Education, Ain-Shams University
The present study aims at studying the floristic features and community types of the main weed species associated with wheat crop in Menofia Province, Egypt. Sixty stands (each 10 × 10 m) were randomly selected in five wheat farms for monthly determining the cover of weed species along the growing season of wheat. Twenty nine species belonging to 28 genera and 17 families were recorded associated with wheat crop. The most dominant families were Poaceae, Brassicaceae and Fabaceae. Annual weeds were represented by 26 species, while perennials were 3 species. Therophytes were the dominant life form (26 species), while geophytes-helophytes, chamaephytes and hemicryptophytes were represented by on species (Cyperus rotundus, Solanum nigrum and Convolvulus arvensis, respectively). The application of TWINSPAN on the cover estimates of 29 associated species recorded in the 60 sampled stands in wheat, led to the recognition of 8 vegetation groups: A: Convolvulus arvensis, B: Malva parviflora, C: Polypogon monspliensis, D: Capsella pursa-pastoris, E: Euphorbia peplus, F: Chenopodium murale, G: Sonchus oleraceous, and H: Beta vulgaris. M. parviflora group had the highest values of species richness and relative concentration of dominance, while C. murale group had the lowest values of species richness, relative evenness and relative concentration of dominance. Moreover, the highest value of relative evenness was recorded in M. parviflora and C. pursa-pastoris group. The present study is the keystone for further investigation on the weed function and weed management practices.
https://jsrs.journals.ekb.eg/article_15468_36f5914b28a4a4a6dc53757e0cb392ae.pdf
Wheat
Assemblage
weeds
floristic
community types
eng
Ain Shams University, Faculty of Women for Arts, Science and Education
Journal of Scientific Research in Science
2356-8364
2356-8372
2016-09-01
33
part1
84
103
10.21608/jsrs.2016.15483
15483
Vegetation Analysis, Distribution of Seagrasses and Their relationship to Sediment type in Hurghada and Safaga Harbors, Red Sea
Sameh El-Kafrawyc
a_tahalel@yahoo.com
1
Ahmed Khalafallah
2
Soad. Sheteawia
3
Mahmoud Darb
4
Basma, Essaa
5
National Authority for Remote Sensing & Space Sciences
aBot. Department., Faculty of women for Arts, Science and Education, Ain Shams University,
Bot. Department., Faculty of women for Arts, Science and Education, Ain Shams University,
bNational Institute of Oceanography and Fisheries (NIOF), Hurghada
Bot. Department., Faculty of women for Arts, Science and Education, Ain Shams University,
The present work aimed to study the floristic composition, vegetation analysis, distribution of seagrasses and their relationship with sediment type in Red Sea. Forty stands of seagrass beds distributed in four sites located at Hurghada and Safaga Harbors were investigated. Five seagrasses were identified in the 40 stands; Halophila stipulacea (Forssk.) Asch., Halodule uninervis (Forssk.) Boiss., Halophila ovals (R.Br.) Hook. f., Thalassodendron ciliatum (Forssk.) Hartog and Syringodium isoetifolium (Forssk.) Hartog. All recorded seagrasses are belonging to tropical indo-pacific bioregion. Application of TWINSPAN and DECORANA, as classification and ordination techniques to the 40 stands resulted in five vegetation groups. Sediment of the investigated stands mainly constructed from fine sand. In addition, the correlation coefficient matrix showed that H. uninervis and H. ovalisprefer presence in sandy sediments, but Th. ciliatum positively correlated to total organic matter. On the other hand, H. stipulacea positively correlated with carbonates. These results are significant as a data base for management and conservation. Recent techniques as remote sensing integrated with field survey is recommended for monitoring these communities to give a clear view on spatial distribution of seagrasses on a large scale along Red Sea.
https://jsrs.journals.ekb.eg/article_15483_9e05ca11ac2aae4c6e02576512a401a7.pdf
Seagrasses
TWINSPAN
Sediment
Hurgada
Safaga
Red Sea
eng
Ain Shams University, Faculty of Women for Arts, Science and Education
Journal of Scientific Research in Science
2356-8364
2356-8372
2016-09-01
33
part1
104
116
10.21608/jsrs.2016.15487
15487
Decontamination of oilfield produced water containing petroleum hydrocarbons by high flow rate bioelectrocoagualtionsystem.
Ibrahim Mousa
ibrahim.mousa@gebri.usc.edu.eg
1
Sherif Bedair
2
Mohsen Fawzy
3
Abd-Elhameed Osman
4
Environmental biotechnology department, Genetic engineering and biotechnology research institute (GEBRI), University of Sadat city, Egypt.
Environmental biotechnology department, Genetic engineering and biotechnology research institute (GEBRI), University of Sadat city, Egypt.
Environmental biotechnology department, Genetic engineering and biotechnology research institute (GEBRI), University of Sadat city, Egypt.
Environmental biotechnology department, Genetic engineering and biotechnology research institute (GEBRI), University of Sadat city, Egypt.
It is of critical importance in case of oilfield produced water (PW) treatment designing what the composition of constituents of target water and how the degradation should be observed as efficiently as possible. Total petroleum hydrocarbons (TPH) and other pollutants, such as heavy metals, and dissolved/suspended solids are generally occurring in PW. This study presents the hybrid system to stimulate the suitable conditions withhigh flow rate electrocoagulationbiodegradation ofPW.The efficiency of a bioelectrocoagualtion (BEC)system for the continuous removal of TPH and sulfur compounds from PW has many problems. Treatment conditions were changed to overcome the formation of hydrogen sulfide as a reduced form of sulfate. This study observed the results of lab scale hybrid system setup with electrocoagulation and biodegradation. The initial removal rate of TPH was partially enhanced at detention time, current densities and electrolytes modifications and the same trend for sulfide formation rate.Collectively, the results of this study confirmed that sulfate converted to sulfide taking place within the electrochemical zone. The maximum TPH, sulfate and COD removal efficiency was achieved 75%, 25.3% and 22.3, respectively when the detention time was about 5L/hour. Also, the results indicated that the flow rate is very important to keep the balance between current density and more TPH removalof high saline water in the hybrid system.
https://jsrs.journals.ekb.eg/article_15487_78ecba050d49d80a8efdec58bbe47103.pdf
oilfield produced water
Bioelectrocoagualtion
total petroleum hydrocarbon
sulfate and sulfide
eng
Ain Shams University, Faculty of Women for Arts, Science and Education
Journal of Scientific Research in Science
2356-8364
2356-8372
2016-09-01
33
part1
134
159
10.21608/jsrs.2016.15524
15524
Extraction of Sulphated Polysaccharides (SPs) from Different Species of Marine Macroalgae and Studying their Role as Natural Anticoagulant
F. Abdelbaset
battotnour@yahoo.com
1
W. Abou El– Kheir
2
A. Farag
3
F. Mourad
4
Nedal, Nasef
5
Botany Department, Faculty of Women for Arts, Science and Education, Ain Shams University, Cairo, Egypt
Botany Department, Faculty of Women for Arts, Science and Education, Ain Shams University, Cairo, Egypt
Botany Department, Faculty of Women for Arts, Science and Education, Ain Shams University, Cairo, Egypt
Marine environment , The National Institute of Oceanography and Fisherie , Suez , Egypt.
Medical Microbiology and Immunology, Faculty of Medicine, Mansoura University , Egypt.
Marine algae are the most important source of non-animal sulphated polysaccharides which possess important pharmacological activities such as anticoagulant, antioxidant, anti-inflammatory, antiviral, antibacterial agents. Therefore, marine algae derived sulphated polysaccharides have great potential to be further developed as medicinal products. Marine macroalgae were collected seasonally for one year (September 2013 to August 2014) from the intertidal zone of site I: Ras El-Adabiya whichlocated on the western shore of Suez Bay and site II: Ras Sedr which located north–east of the Gulf of Suez. The purpose of this study was to extract sulphated polysaccharides from marine macroalgae (Ulva lactuca, Codium dwarkense, Hypnea cornuta, Hormophysa triquetra, Sargassum denticulatum and Cystoseira myrica) by two different methods (hot and cold water extracts) and chemical analysis also done ( protein content, total sugar , sulphate content , sulfer and nitrogen and uronic acid). The results of thephysico-chemical parameters for sea water samples showed that temp ranged between 15-30 °C, pH 7.8-8.7, salinity 38-42 ‰ , DO 6-7 mg/L, NO3 0.021-4.6 mg/L,NO2 0.004 -0.032 mg/L, NH4 0.019-0.3mg/L and PO4 0.005-0.015 mg/L. The potential of use sulphated polysaccharides as natural anticoagulant was tested by the activated partial thromboplastin time (APTT) and the prothrombin time (PT) tests. The results showed that higher blood anticoagulant activity of SPs is proportional to the carbohydrate and sulphate contents and inversely proportional to the protein and uronic acid contents. So, The significant highest value of prothrombin time was 26.50±0.10 sec at conc. of 20% SPs cold extract from the brown alga Hormophysa triquetra, while the lowest value was 1.13±0.06 sec at conc. of 5% SPs hot extract of the red alga Hypnea cornuta. Also, the results indicated that the highest value of activated partial thromboplastintime 42.20±0.10 sec was recorded atconc. of 20% SPs cold extract from the brown alga Hormophysa triquetra, On the other hand, the lowest value 5.63±0.25 sec was recorded at conc. of 5% SPs hot extract from the red alga Hypnea cornuta .
https://jsrs.journals.ekb.eg/article_15524_0c9f027146d8b79fd89c541cd3a8dce9.pdf
Ras sedr
Ras El-adabiya
Marine Macroalgae
Sulphated polysaccharides
blood anticoagulation activity
eng
Ain Shams University, Faculty of Women for Arts, Science and Education
Journal of Scientific Research in Science
2356-8364
2356-8372
2016-09-01
33
part1
160
170
10.21608/jsrs.2016.15534
15534
Effect of He:Ne laser on the growth of Amnion cells grown over a synthetic nanoscaffolds
Eman El Sheikh
bntelsheikh@yahoo.com
1
Soheir Korraa
2
M. S
3
Hassan Abdel Rehim
4
Physics department, Women`s College for arts, science and education, Ain Shams University.
Health Radiation Research – National Center for Radiation Research - Atomic Energy Authority
Physics department, Women`s College for arts, science and education, Ain Shams University.
Chemistry department --National Center for Radiation Research - Atomic Energy Authority-
Human amnion cells are very important type of stem cells, which are able to differentiate into cell types of all three germ layers, so this study was investigated the impact of He-Ne laser on viability, proliferation and differentiation of cultured human amnion cells grown over a synthetic nanoscaffold. This nanoscaffold was prepared from 13% polycaprolactone (PCL) dissolved in 1:1 chloroform: dimethyle formamide (DMF) as a solvent by using electrospinning technique. Human amnion cells were grown over the scaffold and were exposed to He:Ne laser at doses 1, 2.5 and 5 J/cm2 every 48 hours for a duration of 12 days. It was concluded that scanning electron microscope (SEM) photographs showed good colony spreading of seeded amnion cells grown over the electrospun scaffold, and He:Ne laser induced cell proliferation as detected by MTT, nitric oxide and lipid peroxidation production.
https://jsrs.journals.ekb.eg/article_15534_d4154f2b3247c99fa9ad5e1d99347cca.pdf
Synthetic nanoscaffolds / Aminon cells / He:Ne laser Irradiation
eng
Ain Shams University, Faculty of Women for Arts, Science and Education
Journal of Scientific Research in Science
2356-8364
2356-8372
2016-09-01
33
part1
171
183
10.21608/jsrs.2016.15537
15537
Evaluation of different physical parameters based on standard photon beam versus flattening filterfreein treatment cancer patients
Aly Abdelaty
phy_alywagdy@yahoo.com
1
A. EL-Shershaby
2
H. Ashry
3
K. EL-Shahat
4
B.Sc. in Physics, El-Mansoura University, Radiotherapy Department Elgalaa Hospital
Physics Department,Women Faculty for Arts, Science, and Education, Ain -Shams University
National Center for Radiation Research and Technology, Atomic Energy Authority
Medical Radiation Biophysics, Faculty of Medicine, Al-Azhar University
cccc
In radiotheraby, the purpose of using standard photon beam (Flattening Filter; FF) is to convert the forward peaked MV bremsstrahlung photon intensity into uniform intensity pattern for obtaining clinically acceptable beam profile. Recently a number of studies were carried out on existing medical linac by removing the flattening filter to produce the unflat photon beam and demonstrated their feasibility in the implementation of advanced radiotherapy techniques. Flattening Filter Free (FFF) beam have a fundamental physical parameter differences with respect to the standard filter flattened beams, making the generally used dosimetric parameters and definitions not always viable. In this concern, the current paper is a trial to shed further light on studying some dosimetric parameters for use in quality assurance of FFF beams generated by medical linacs in radiotherapy. The main characteristics of the photon beams have been analyzed using specific data generated by a Varian TrueBeamlinac having bothFFF and FF beams of 6 and 10 MV energy. Definitions for dose profile parameters are suggested starting from the renormalization of the FFF with respect to the corresponding FF beam. From this point the flatness concept has been translated into one of “unflatness” and other definitions have been proposed, maintaining a strict parallelism between FFF and FF parameter concepts. In summary, although there are a number of advantages of using a FFF beam especially for advanced radiotherapy techniques there are a few challenges (e.g., criteria for beam quality evaluation and penumbra, establishment of dosimetry methods, and consequences of photon target burn-up) which need to be addressed for establishing this beam as an alternate to the FF beam.
https://jsrs.journals.ekb.eg/article_15537_765a6af967bd8eb0d01479cc4e99b22c.pdf
Flattening filter free
beam and flattening filter
breast cancer
treatment planning
beam characteristics and multi-leaf collimators
eng
Ain Shams University, Faculty of Women for Arts, Science and Education
Journal of Scientific Research in Science
2356-8364
2356-8372
2016-09-01
33
part1
184
200
10.21608/jsrs.2016.15542
15542
Optimization of physical properties of Ag - Li nanoferrites via the facile citrate precursor method
Maha Alsyed
mahamohsen245@yahoo.com
1
Nagwa Okasha
2
Materials Science Lab (1), Physics Department, Faculty of Science, CairoUniversity, Giza, Egypt
Physics Department, GirlsCollege, AinShamsUniversity, Cairo, Egypt.
Silver-substituted lithium ferrites (Li0.5-xAgxFe2.5O4; x=0, 0.025, 0.05, 0.075, 0.1nanoparticles were prepared via citrate autocombustion method. All the ferritesamples have been characterized using XRD, TEM, χM, VSM, and ac electricalconductivity. The crystallite size is between 44 to 49 nm. The saturation magnetizationreaches a maximum value of 69 emu/g. mole higher than the undoped sample at 50emu/g. mole. The Curie temperature improves 1.1 times on the undoped sample. Theincrease in the dielectric constant by Ag+ depends on the electronic configuration of thedifferent Ag content.
https://jsrs.journals.ekb.eg/article_15542_0384a26fd366f7b9eb2bf1969c6cf828.pdf
Ag- nanoferrites
Citrate precursor method
Magnetic properties
Dielectric properties
eng
Ain Shams University, Faculty of Women for Arts, Science and Education
Journal of Scientific Research in Science
2356-8364
2356-8372
2016-09-01
33
part1
201
213
10.21608/jsrs.2016.15553
15553
Thermoluminescence characteristics of NaCl from Different Origins
Mohsen Abdel-wahed
albahar.mohsen@gmail.com
1
Saleh Abdou
2
Hayam Abdel-ghany
3
Hany Amer
4
Department of radiation physics, National Center for Radiation Research and Technology (NCRRT), Cairo, Egypt.
Department of radiation physics, National Center for Radiation Research and Technology (NCRRT), Cairo, Egypt.
Department of physics, Faculty of Women for Arts, Science, and Education, Ain-Shams University, Cairo, Egypt.
Department of radiation protection, Egyptian Nuclear & Radiological Regulatory Authority (ENRRA), Cairo, Egypt.
In radiological emergencies, table salt can be considered an established method for the retrospective dosimetry of past exposures and the dosimetry of potentially exposed people, where it is a material that can be expected to be easily available in accident locations and it can easily be sampled collection. The characteristics of thermoluminescence (TL) have been studied for four different commercial salt samples (NaCl) obtained from different sources. Indian salt (supplied by oxford lab) is used for comparison, not for measuring doses, Egyptian table salt (SAL), Saudi Arabian table salt (MASA) and British table salt (Cook’s), are the three nominated types of salt to procedure in this work. Samples were irradiated with Gamma source using Cs-137. TL analysis of the samples were done using Harshaw Model 4500 TLD Reader, with WinREMS (Windows Radiation Evaluation and Management System) at heating rate 5 oC /sec with final temperature set to 350 oC. One prominent glow peak is observed in the glow curve at around 216 - 222 oC of the commercial salt samples. For all salt samples, the TL intensity of the glow curve is direct proportional to the grain size. By comparison the highest TL intensity for each salt sample, it is found that, Cook’s salt is the most sensitive and preferable one to complete the study. The results show also that, TL intensity of the chosen salt (Cook’s salt) has a linear response with the dose for a broad range from 250 mGy to 20 Gy. The post-irradiated fading rates are investigated and show stability after 8 days. The fading at room temperature was monitoring during 24 days. Cook’s salt may be candidate for using as a Gamma ray retrospective dosimeter.
https://jsrs.journals.ekb.eg/article_15553_3805b3682ad6d9e59755d2325a2b589b.pdf
table salt
Thermoluminescence (TL)
Grain size
dose response
Fading
eng
Ain Shams University, Faculty of Women for Arts, Science and Education
Journal of Scientific Research in Science
2356-8364
2356-8372
2016-09-01
33
part1
1
21
10.21608/jsrs.2016.15620
15620
Original Article
Diversity and Vegetation Analysis of Plant species Associated with Prickly Pear (Opuntia ficus indica L. Mill.) in Nile Delta, Egypt
Fatema Al Saidi
fafirosek@yahoo.com
1
Ahmed Khalafalla
ahmed.khalafalla@women.asu.edu.eg
2
Wafaa Said
3
Botany Department, Faculty of women for Arts, Science and Education, Ain Shams University
Botany Department, Faculty of women for Arts, Science and Education, Ain Shams University
Botany Department, Faculty of women for Arts, Science and Education, Ain Shams University
The present work aimed to study the floristic diversityand vegetation analysis of weeds associated with Opuntia ficus indica (L.) Mill. in three Nile Delta governorates. Ninety nine stands (10m X 10m) were surveyed in autumn and spring (2015-2016). Seventy one species belonging to 61 genera and 27 families were recorded associated with PricklyPear. Poaceae, Asteraceae, Chenopodiaceae and Brassicaceae, were the most dominant families. Annuals recorded the highest number of species (45 species) while perennials were represented by 26 species. Therophytes were the dominant life form represented by 43 species while monoregional represented the dominant floristic category (22 species). The application of TWINSPAN on the cover estimates of 71 associated species recorded in the 99 sampled stands of PricklyPear, led to the recognition of 8 vegetation groups: The names of these groups are: A: Boerhavia Coccinea, B: Cynodon dactylon, C: Cyperus rotundus, D: Psidium guajava, E: Amaranthus lividus, F: Malva parviflora, G: Phragmites australi and H: Imperata cylindrical. M. parviflora grouphad the highest value of species richness (21.6 species/stand) and relative evenness (0.63), while the highest species turnover (8.2) was recorded in Boerhavia coccenea VG A and the highest relative concentration of dominance (2.43) was recorded in Amaranthus lividus VG E. Some of the recorded species are invasive and negatively impact PricklyPear cover, these species need control. Some other species provides many ecological and human services, these species need management and conservation.
https://jsrs.journals.ekb.eg/article_15620_90dab092ba1e677b4476dac7adcd29f5.pdf
Opuntia ficus indica
Floristic Diversity
Vegetation Analysis
Nile Delta
TWINSPAN
eng
Ain Shams University, Faculty of Women for Arts, Science and Education
Journal of Scientific Research in Science
2356-8364
2356-8372
2016-09-01
33
part1
117
133
10.21608/jsrs.2016.15622
15622
Original Article
Occurrence of moulds inEgyptianprocessed peanut and control of aflatoxicfungi by some powder spices
Walaa, Mohammed
drlolomicro@yahoo.com
1
Mona Fahd
2
Feriala Abo-seif
3
Food Toxicology and Contaminants National Research Center,Cairo,1. Botany Department, Faculty of Women for Arts, Science and Education- Ain Shams University. Egypt
Botany Department, Faculty of Women for Arts, Science and Education- Ain Shams University.
Botany Department, Faculty of Women for Arts, Science and Education- Ain Shams University.
Due to its high protein and lipid content, peanut are greatly appreciated by consumers but is very susceptible to aflatoxic fungi contamination indicates that there is a potential hazard of aflatoxins contamination in Egyptian processed peanuts and that requires resistance to this fungus. The current work aimed to study the occurrence of molds in peanut products as well as the antifungal properties of ten powder spices (Cloves, Black pepper , Cinnamon , Peppermint, Thyme , Cardamom , Cumin, Ginger, Onions and Fenugreek) at different concentration4,7,10 mg/ml in broth yeast extract sucrose media (YES) against aflatoxigenicAspergillusflavus fungi associated with peanut products. Samples(Row,Roasted,Roastedwith salted and with spices) were collected from five locations ( Cairo,Suez, Monofia of north Delta and Fayoum and Luxor of south Delta ) during one year from ( winter 2013 to autumn 2014). Four fungal genera were isolated Aspergillus( 8.30-38.97 %) , Penicillium ( 2.98 - 18.98 %), Fusarium (2.96 – 8.98%) and Rhizopus (0.98 – 11.95%) .Aspergillus section flavi was the most common. One way ANOVA indicated that there is significant among the five Governorates in their infection percentage of peanut by Aspergillus spp., but no significance difference in their infection percentage of peanut by Penicillium spp., Rhizopus spp. and Fusarium spp. Alsothe results revealed that A.flavus and A. parasiticus isolates produced aflatoxins.. It is noticed that clove powder is the most effective spice which completely inhibited A. flavusgrowth and aflatoxins production in broth media and in peanut seeds , while other spices only inhibit aflatoxins production at 10mg/ml but allow fungal growth at this concentrations ,but did not inhibit the fungal growth or aflatoxins production at4 and 7 mg/ml.It is noticed that the minimum inhibitory concentration ( MIC) of clove was at 3mg/ml. As well as the effect of spices ( clove ,cinnamon,thyme and peppermint) on A. flavus in raw peanut seeds showed that the fungal growth was noticed at all the concentrations (4,7 and 10 mg/g) but it was weak at 10mg/g of clove. Aflatoxinsproduction were inhibited at 10mg/g spices( clove ,cinnamon, thyme and peppermint as well as at 7mg/g clove and cinnamon inhibit aflatoxins production. On the other hand at 7mg/g of peppermint and thyme reduced the aflatoxinsproduction till 22.3 and 30μg/kg respectively. At 4ml/g of spices concentration( clove, cinnamon, peppermint and thyme) aflatoxins production were reduced to 20, 30, 43.8 and 50 μg/kg respectively in peanuts for 7 days.
https://jsrs.journals.ekb.eg/article_15622_e44a02caa005b1254fc3bff944730655.pdf
Antifungal
Spices
Peanut seeds
locations
fungi
seasons
eng
Ain Shams University, Faculty of Women for Arts, Science and Education
Journal of Scientific Research in Science
2356-8364
2356-8372
2016-09-01
33
part1
214
224
10.21608/jsrs.2016.15626
15626
Original Article
Suitability of pure nanocrystalline LiF as a TLD dosimeters for high dose gamma radiation
H. Amer
hanyamer11@gmail.com
1
M. El Ashmawy
2
H. Al Azab
3
M. Ezz El-Din
4
Nuclear and Radiological Regulatory Authority, 3-Ahmed El-Zomor Street, El-Zohour District, Nasr City, 11762 Cairo, Egypt.
Nuclear and Radiological Regulatory Authority, 3-Ahmed El-Zomor Street, El-Zohour District, Nasr City, 11762 Cairo, Egypt.
Nuclear and Radiological Regulatory Authority, 3-Ahmed El-Zomor Street, El-Zohour District, Nasr City, 11762 Cairo, Egypt.
Nuclear and Radiological Regulatory Authority, 3-Ahmed El-Zomor Street, El-Zohour District, Nasr City, 11762 Cairo, Egypt.
LiF is an alkali halide that is commonly used in radiation dosimetry utilizing its well known thermoluminescence property. Pure LiF has very limited use in radiation dosimetry since the density and types of the internal traps are limited. For that reason, LiF usually are doped with different elements such as Mg and Ti in (TLD-100) to enhance its TL properties and to be suitable for dosimetry applications. In this work we used ball milling as an alternative to dopants (impurities) to induce structure defects (e.g. dislocation) that will play the major role in TL process instead to dopants. A pristine LiF was milled for 1 hour and compressed in form of chips then annealed for 1 h at 600 oC to get rid of low temperature dislocations. The annealed samples showed linear response in the range 50-300 Gy. Fading investigation showed that the overall integral TL intensity almost stabilizes after 12 day from first irradiation. The study indicates that ball milling is new promising technique to produce TL dosimeters free of dopants.
https://jsrs.journals.ekb.eg/article_15626_e022fabaef2cec07a5a303f3212a462b.pdf
Thermoluminescence
LiF
glow curve
ball milling
dislocation
synchrotron radiation
dose response
Fading
eng
Ain Shams University, Faculty of Women for Arts, Science and Education
Journal of Scientific Research in Science
2356-8364
2356-8372
2016-09-01
33
part1
225
238
10.21608/jsrs.2016.15630
15630
Original Article
Preparation and Characterization of CuWO4 Nanoparticles
S. El-Gharbawy
fouads5649@gmail.com
1
M. Ahmed
2
M. Khalil
3
H. El-G hany
4
Housing and Building National Research Center, Giza, Egypt
Physics Dep., Faculty of Science, Cairo Univ., Giza, Egypt.
Housing and Building National Research Center, Giza, Egypt.
Physics Dep., Faculty of women for arts, science, and education, Ain Shams Univ.
In this research work, CuWO4 nanocomposite powder was prepared via co-precipitation method. The resulting precipitates were annealed at 400oC with heating/cooling rate of 1oC/min. The obtained nanopowder was characterized by X – ray diffraction (XRD), Fourier transformation infrared (FTIR), Environmental Scanning Electron Microscope (ESEM) and High resolution transmission electron microscope (HRTEM). The thermal stability was investigated via differential thermal analysis (DTA) and thermo-gravimetric analysis (TGA). Dielectric constant (έ) and ac electrical conductivity (σac) for the prepared sample were measured in a wide temperature range as a function of frequency.
.
https://jsrs.journals.ekb.eg/article_15630_9f9c97c8fcec0c0c988de0ae8c5a1fa3.pdf
Tungsten–Copper
Co-precipitation method
Crystallite size
HRTEM
electrical properties
eng
Ain Shams University, Faculty of Women for Arts, Science and Education
Journal of Scientific Research in Science
2356-8364
2356-8372
2016-09-01
33
part1
239
246
10.21608/jsrs.2016.15634
15634
Original Article
GC/MS characterization of Egyptian propolis different extracts
Sherif M
rehabtaha_2011@yahoo.com
1
Rehab. A.
2
Hamdia Z
3
Biophysics and Laser Science Unit, Research Institute of Ophthalmology, Giza, Egypt.
Physics Department , College of Women for Arts, Science, and Education Ain Shams Univ., Cairo, Egypt.
Physics Department , College of Women for Arts, Science, and Education Ain Shams Univ., Cairo, Egypt.
Propolis is a natural substance known to be beneficial for human health and used as a folk medicine in many parts of the world. In this study, propolis powder was extracted by different solutions; water, hydroalcohol, ethanol and hexane and the resulted extracts were analyzed by GC/MS. All results together give evidence that the solvent used for extractions significantly affect the content of the individual compounds and each extract was associated with different number of fractions and has its own m/z range. These characteristics variation may have an impact on the biological activity of propolis.
https://jsrs.journals.ekb.eg/article_15634_03f5052984fb5556d28764cda2260f3d.pdf
GC/MS
Egyptian propolis
water
ethanol
Hexane
eng
Ain Shams University, Faculty of Women for Arts, Science and Education
Journal of Scientific Research in Science
2356-8364
2356-8372
2016-09-01
33
part1
247
259
10.21608/jsrs.2016.15639
15639
Original Article
Effect of temperature and humidity on the performance of Charcoal CanisterPassive Rn detectors
Hala Mahmoud
hala.m.bakeer@gmail.com
1
W. Arafa
2
A. Ashry
3
M. Abo Leila
4
Department of physics, Faculty of women, Ain Shams University,Cairo, Egypt
Department of physics, Faculty of women, Ain Shams University,Cairo, Egypt
Department of physics, Faculty of education, Ain Shams University,Cairo, Egypt
Department of physics, Faculty of education, Ain Shams University,Cairo, Egypt
The dependence of radon adsorption on the temperature up to 35 °C was studied for 4" open face (OF) charcoal canister at different values of relative humidity using a radon calibration chamber with variable and controlled radon concentration, humidity, and temperature which was previously constructed. Sets of calibration factor (CF) and adjusting factor (AF) curves were established at 20, 25, 30, and 35 °C and,different humidity (RH%). These curves are used to extend the use of open-faced charcoal canisters for higher temperature and humidity applications. The optimum exposure time to achieve the best detection accuracy was estimated between 2 and 4 days depending on relative humidity. The open-faced canisters havehigher efficiency of radon absorption at low temperature.
https://jsrs.journals.ekb.eg/article_15639_ec53e30f211974f55f2b16e0432404ef.pdf
Radon
charcoal canisters
calibration
humidity, temperature dependence
eng
Ain Shams University, Faculty of Women for Arts, Science and Education
Journal of Scientific Research in Science
2356-8364
2356-8372
2016-09-01
33
part1
260
280
10.21608/jsrs.2016.15646
15646
Original Article
Removal and recovery of Th4+ and UO22+ ions from aqueous solutions by adsorption onto glauconite (dark green color)
Ahmed Azzam
ahmed_azzam2000@hotmail.com
1
Bahaa Salah
2
Said Sayed
3
Faculty of Science, Helwan University, AinHelwan, Helwan, Cairo, Egypt
Faculty of Science, Helwan University, AinHelwan, Helwan, Cairo, Egypt
Faculty of Science, Helwan University, AinHelwan, Helwan, Cairo, Egypt
As a natural and low-cost material, glauconite is applied as an adsorbent to remove Th4+ and UO22+ ions from aqueous solutions by a batch system. Two different samples of glauconite (dark green and light green color) are delivered from Baharia Oases, Egypt. The effects of analytical parameters such as pH, contact time, concentration of metal ion, mass adsorbent, interfering ions, and temperature on adsorption on glauconite (dark green) are investigated. The similar uptake percentage of the two different glauconite samples (dark green and light green) at certain condition verify the role of Si-OH in the proposed adsorption mechanism. Isotherm studies of the adsorption are also carried out to understand the nature of adsorption of Th4+ and UO22+ ions on glauconite (dark green). Equilibrium data are best fitted with Langmuir model. The adsorption capacity of Th4+ and UO22+ ions is found to be 50 and 40 mgg-1, respectively. Thermodynamic parameters ΔHo, ΔSo and ΔGo values showed that the sorption process was endothermic (ΔHo > 0), had increased entropy (ΔSo > 0) and spontaneous (ΔGo < 0). The retained metals are eluted by using different reagents. The preconcentration could be made selective to UO22+ ions by using HNO3 0.1 M, NaCl 0.9 M and oxalic acid 0.1 M rather than Th4+ ions.
https://jsrs.journals.ekb.eg/article_15646_855d7fd8002da3eda692f8a530724e2a.pdf
Removal
Uranium
Thorium
Glauconite
sorption isotherms
eng
Ain Shams University, Faculty of Women for Arts, Science and Education
Journal of Scientific Research in Science
2356-8364
2356-8372
2016-09-01
33
part1
281
294
10.21608/jsrs.2016.15650
15650
Original Article
Realization of National Institute for Standards (NIS - Egypt) Viscosity Scale in Wide Temperature Ranges
Eman mohamed
eman.mohyeldien@gmail.com
1
Mostafa. Mekawy
2
Hoda Abo Dorra
3
National Institute for Standards, Tersa St., El Haram, Giza 12211, Egypt
National Institute for Standards, Tersa St., El Haram, Giza 12211, Egypt
Physics Department, Faculty of Women for Arts, Science and Education- Ain Shams University
A new viscosity bathes has been entered the services in Thermal Metrology Laboratory-National Institute for Standards, NIS-Egypt in order to use in maintain and extend the national viscosity scale in wide temperature ranges, international comparison and routine calibration of viscometers. The medium of the bath should be homogenous enough in temperature so many thermal factors taken into account to estimate the temperature gradient, homogeneity, stability and thermal profile distribution with the related uncertainty to each parameter. The study carried out by two Standards Platinum Resistance Thermometer (SPRT) calibrated at fixed point according to ITS-90. A number of glass capillary viscometers have been selected and arranged into six groups. The selected viscometers and oils realize NIS viscosity scale in wide temperature ranges from -30 oC up to 100 oC.
https://jsrs.journals.ekb.eg/article_15650_0f96d4c524c100e91670991782c7254c.pdf
viscosity
Viscometer
ITS-90
SPRT
Fixed Points
uncertainty
Scale
eng
Ain Shams University, Faculty of Women for Arts, Science and Education
Journal of Scientific Research in Science
2356-8364
2356-8372
2016-09-01
33
part1
295
306
10.21608/jsrs.2016.15682
15682
Original Article
Ameliorative Effect of Flavonoid Antioxidant on the Histology and Ultrastructure of Albino Rats` Liver Treated with Radiation and /or Acrylonitrile
M. Samy
marwasamy1210@gmail.com
1
M. AbdElazeem
2
M. Ashry
3
A. Farg alla
4
National Center for Radiation Research and Technology. (NCRRT)
National Center for Radiation Research and Technology. (NCRRT)
Zoology Dept., Girls` College, Ain Shams University.
Zoology Dept., Girls` College, Ain Shams University.
The present study was established to investigate the effect of acrylonitrile toxicity or/and g-irradiation on albino rats liver tissue and the role of hesperidin in recovery and improvement. eighty male albino rats (100-110gm) were divided into eight groups. Control group received orally a mixture of dimethyl sulphoxide and water (1: 9, v/v); Acrylonitrile treated group was given daily dose of (50mg/kg body weight)/day for 4 weeks; Acrylonitrile or/and group exposed to whole body g-irradiation up to dose of 6Gy accumulative dose; Hesperidin treated group received daily dose of (100 mg/kg body weight) for 4 weeks; hesperidin and acrylonitrile daily dose of (50mg/kg body weight)/day and/or g-irradiation up to dose of 6Gy accumulative dose (1.5Gy/ week). Light and transmissionelectron microscopic were used to examine liver tissue. The histological investigation showed deterioration in the liver's tissues pattern in the acrylonitrile treated group or/and g-irradiated one. The results obtained, showed an improvement in liver tissue in the groups treated with hesperidin. Such results indicated that co-administration of hesperidin was found to be more effective in restoring, histological and electron microscopic alterations.
https://jsrs.journals.ekb.eg/article_15682_f765d534222971391861ad8e7e7ae8fc.pdf
Radiation
Acrylonitrile
Hesperidin
live
eng
Ain Shams University, Faculty of Women for Arts, Science and Education
Journal of Scientific Research in Science
2356-8364
2356-8372
2016-09-01
33
part1
307
316
10.21608/jsrs.2016.15683
15683
Original Article
Hepatotoxicity of Methotrexate and the Possible Ameliorative Effect of L-Carnitine: Ultrastructural Study
S. Kadry
mhgawad11@yahoo.com
1
M. Ashry
2
N. Abuzeid
3
N. Algaw
4
Zoology Department, Faculty of Women for Arts, Science and Education, Ain Shams University
Zoology Department, Faculty of Women for Arts, Science and Education, Ain Shams University
Microscopy Laboratory, Ain shams Specialized Hospital
Biology Department, Faculty of Science, El-Margeb University, Libya
Methotrexate (Mtx) is widely used in various cancer and inflammatory diseases. Hepatotoxicity is the most serious side effect in long-term Mtx treatment. Therefore, the present study aimed to investigate the protective effect of L-Carnitine against Mtx-induced injury in rat’s hepatocytes. Fifty male albino rats, each weighing 120-130g were used. The experimental animals were equally divided into five groups , 10 rats each, and treated intraperitoneally (twice /week) as follows : (1) rats did not receive any treatment (control group ); (2) rats given 300mg L-Carnitine /100g b.w. for 4 weeks ; (3) rats given 0.045mg Mtx /100g b.w. for 4 weeks ; (4) rats given 0.045mg Mtx /100g b.w. with 300mg L-Carnitine /100g b.w. for 4 weeks ; (5) rats given 0.045mg Mtx /100g b.w. for 4 weeks then given 300mg L-Carnitine /100g b.w. for other 4 weeks.
In Methotrexate- treated group, the ultrastructural study on hepatocytes revealed pyknotic nuclei with abnormally electron-dense chromatin, irregular nuclear envelopes, electron-dense mitochondria and fragmented rough endoplasmic reticulum.In addition to dilatation and congestion of the hepatic sinusoids as well as increase in lipid droplets and collagen fibers. Rats co-treated with L-Carnitine against Mtx showed significant improvement in the ultrastructure abnormalities of hepatocytes caused by Mtx. On the other hand, mild to moderate improvement in hepatocytes were observed in the group treated with Mtx followed by L-Carnitine. These results indicated that co- and post L-Carnitine treatment can diminish Mtx-induced liver ultrastructural injuries. The beneficial effect was more pronounced in L-Carnitine co treated with Methotrexate.
https://jsrs.journals.ekb.eg/article_15683_c513f10445979139eeb4639986031ae5.pdf
Liver
Methotrexate
L-carnitine
ultrastructural study
eng
Ain Shams University, Faculty of Women for Arts, Science and Education
Journal of Scientific Research in Science
2356-8364
2356-8372
2016-09-01
33
part1
396
407
10.21608/jsrs.2016.17145
17145
Original Article
Extraction and Characterization of Chitosan from Shrimp Shells (Egypt : case study)
Yassmin Saleh
yassmin_saleh11@yahoo.com
1
Abir Nasr
2
Howida Zaki
3
Mansoura Mohamed
4
nadia Kandile
nadiaghk@yahoo.com
5
Chemistry Department, Faculty of Women, Ain Shams University, Heliopolis 11757, Cairo, Egypt
Chemistry Department, Faculty of Women, Ain Shams University, Heliopolis 11757, Cairo, Egypt
Chemistry Department, Faculty of Women, Ain Shams University, Heliopolis 11757, Cairo, Egypt
Chemistry Department, Faculty of Women, Ain Shams University, Heliopolis 11757, Cairo, Egypt
Chemistry Department Faculty of Women, Ain shams University,Heliopolis,Cairo,Egypt
In the present study we reported the extraction of low cost chitosan’s (CHS1, CHS2, CHS3 and CHS4) from shrimp shells by extraction of chitin, then alkaline deacetylation of chitin with strong alkaline solution at different period of time. The different prepared chitosan's (CHS1, CHS2, CHS3 and CHS4) were characterized by FTIR spectroscopy, thermal stability, morphology, crystallography, elemental analysis and degree of deacetylation . The data showed that the prepared chitosan CHS2 has the most thermal stability and the highest degree of deacetylation.
Keywords: Chitosan, Hydrogyl, Shrimp shells, Chitin, Morphology.
In the present study we reported the extraction of low cost chitosan’s (CHS1, CHS2, CHS3 and CHS4) from shrimp shells by extraction of chitin, then alkaline deacetylation of chitin with strong alkaline solution at different period of time. The different prepared chitosan's (CHS1, CHS2, CHS3 and CHS4) were characterized by FTIR spectroscopy, thermal stability, morphology, crystallography, elemental analysis and degree of deacetylation . The data showed that the prepared chitosan CHS2 has the most thermal stability and the highest degree of deacetylation.
https://jsrs.journals.ekb.eg/article_17145_8d327f5055fbfc6685e536667e496cb9.pdf
Chitosan
Hydrogyl
Shrimp shells
chitin
Morphology
eng
Ain Shams University, Faculty of Women for Arts, Science and Education
Journal of Scientific Research in Science
2356-8364
2356-8372
2016-09-01
33
part1
408
416
10.21608/jsrs.2016.17146
17146
Original Article
Synthesis and Reactions of novel 2-arylmethylene-4-oxo-4-[4-methoxy-3-methylphenyl] butanhydrazide derivatives
M. Soliman
1
N. Saber
2
M. El-Ganainy
marymmohmed92@yahoo.com
3
A. Hasanien
4
Suez University, Faculty of Science, Chemistry Department, Suez, Egypt
Suez University, Faculty of Science, Chemistry Department, Suez, Egypt
Suez University, Faculty of Science, Chemistry Department, Suez, Egypt
Suez University, Faculty of Science, Chemistry Department, Suez, Egypt
A novel series of 2-arylmethylene-4-[4-methoxy-3-methylphenyl]-4-oxobutanhydrazide derivatives (2a-c) was synthesized via the reaction of 3-arylmethylene-5-[4-methoxy-3-methylphenyl]furan-2(3H)-ones (1a-c) with hydrazine hydrate. The condensation of the hydrazides (2a-c) with various aldehydes gave the corresponding N'-(arylidene)-2-benzylidene-4-(4-methoxy-3-methylphenyl)-4-oxobutanehydrazides(3a-i)
https://jsrs.journals.ekb.eg/article_17146_86d5d5599fa04d7232a893c681fad740.pdf
perkin reaction
furanone
Hydrazide
hydrazone
Condensation
eng
Ain Shams University, Faculty of Women for Arts, Science and Education
Journal of Scientific Research in Science
2356-8364
2356-8372
2016-09-01
33
part1
417
433
10.21608/jsrs.2016.17148
17148
Original Article
Effect of temperature on the removal of cobalt by Friedel´s salt
Heba Amine
haboooosh20102010@hotmail.com
1
Tarek El-sokary
2
Essam Kishar
essamkishar@hotmail.com
3
Maha Mohamed
4
Chemistry Department, Faculty of Girls, Ain Shams University, Cairo, Egypt.
Housing and Building National Research center, Cairo, Egypt
Chemistry Department, Faculty of Girls, Ain Shams University, Cairo, Egypt.
Chemistry Department, Faculty of Girls, Ain Shams University, Cairo, Egypt
The performance of Friedel’s salt (FS: 3CaO·Al2O3·CaCl2·10H2O), a layered double hydroxide (LDHs), as an adsorbent for cobalt (Co2+) removal from its solution was investigated. Friedel’s salt was synthesized by reaction of tricalcium aluminate with calcium chloride. The stability of FS at different pHs was studied. Also, the adsorption behaviors of Friedel’s salt for cobalt (Co2+) from its solution at different concentrations and pH=4 at room temperature and 50ºC was examined. The results showed that, high stability for FS in neutral medium (pH=6) than in basic (pH=8) and acidic medium (pH=4). In addition, the results indicated that the adsorbent FS had an outstanding ability for Co(II) adsorption. The maximum adsorption capacity of the FS for Co (II) removal can reach to 1903.44 mg/g. Furthermore, the increase in the temperature (50º C) effect positively on the rate of adsorption.
https://jsrs.journals.ekb.eg/article_17148_03d6d06ecab99cac0103aa1b742493b9.pdf
LDHs
Friedel’s salt
adsorption/ion exchange
Cobalt
Temperature
eng
Ain Shams University, Faculty of Women for Arts, Science and Education
Journal of Scientific Research in Science
2356-8364
2356-8372
2016-09-01
33
part1
537
551
10.21608/jsrs.2016.17150
17150
Original Article
Preparation and Characterization of Geopolymer Cement
Essam Kisha
1
Said Sayed
2
Bahaa Salah
3
Mostafa Abdullah
mostafa_mm53@yahoo.com
4
Chemistry Department, Faculty of Women for Arts, Science, and Education, Ain shams University
Chemistry Department, Faculty of Science, Helwan University
Chemistry Department, Faculty of Science, Helwan University
Chemistry Department, Faculty of Science, Helwan University
Effect of some artificial pozzolana such as ground granulate blast furnace slag (GGBFS), cement kiln by-pass dust (CKD), silica fume (SF), and fly ash (FA) on geopolymer composition and its resistance to sulphate attack was studied. Various mixes are prepared using different liquid/solid ratios (L/S) by weight. Sodium hydroxide pellets (SH) and commercial sodium silicate liquid (SSL) are used as an activator which was dissolved in the mixing water. The hydration characteristics of the different mixes have been tested via determination of bulk density, total porosity, combined water, compressive strength, and XRD analysis at different time intervals from 1 up to 180 days in water. The results show that the combined water content of the alkali-activated GBFS pastes gradually increases up to 180 days in all mixes. The bulk density increases and the total porosity decreases, as a result of addition of the pozzolanic materials. The compressive strength also increases up to 180 days. All mixes showed good stability of its compressive strength values in 5 % MgSO4 solution. The data show that SF1 (85% GGBFS+15% SF) activated by (0.5 mol/kg SSL, and 2.5 M SH), and S3 (100% GGBFS) activated by (0.5 mol/kg SSL, and 2.5 M SH) are the most appropriate binding materials (geopolymer cement) that have good different properties so that they can be used as alternative binding materials to the ordinary Portland cement.
https://jsrs.journals.ekb.eg/article_17150_8f974a717e08f3f7eed7fb835309e454.pdf
Artificial pozzolana
Slag
cement kiln by-pass dust
Silica Fume
Fly Ash
Geopolymer
and sodium silicate
eng
Ain Shams University, Faculty of Women for Arts, Science and Education
Journal of Scientific Research in Science
2356-8364
2356-8372
2016-09-01
33
part1
527
536
10.21608/jsrs.2016.17151
17151
Original Article
Characterization of Biodiesel from Castor Raw Oil
Marwa Abdelazeem
mabdelfattah_13@yahoo.com
1
Mohamed Abdelfattaha
2
Osayed . Abu-Elyazeedb
3
E. AbdElmawlaa
4
Chemistry Department, Faculty of Science, Helwan University,b Department of Mechanical Power Engineering, Faculty of Engineering -Mataria, Helwan University
Chemistry Department, Faculty of Science, Helwan University,b Department of Mechanical Power Engineering, Faculty of Engineering -Mataria, Helwan University
Chemistry Department, Faculty of Science, Helwan University,b Department of Mechanical Power Engineering, Faculty of Engineering -Mataria, Helwan University
Chemistry Department, Faculty of Science, Helwan University,b Department of Mechanical Power Engineering, Faculty of Engineering -Mataria, Helwan University
In the present work, castor bio-diesel (C.B.D)fuel of raw castor oil (Ricinus CommunisL.) was synthesized in the presence of sodium hydroxide (NaOH) as a catalyst. The influence of catalyst concentration on the yield of castor bio-diesel Fuel was studied. Therefore, different physical properties of bio-diesel could be termed as Caster Bio Diesel (C.B.D) was measured according to American Society of Testing Material (ASTM). Also, the chemical composition of bio diesel was determined by using Gas Chromatography, Mass spectrum (GC-MS) and the functional groups using Infra-Red spectrum (IR). Thus, the main conclusion was drived from both physical and chemical investigations that these synthesized bio-diesel could be used as alternative of diesel.
https://jsrs.journals.ekb.eg/article_17151_bd2c10ebdbccd7123d2c6a393a0b088d.pdf
Castor oil
Bio-diesel
GC-Mass spectrometry
IR-spectroscopy
eng
Ain Shams University, Faculty of Women for Arts, Science and Education
Journal of Scientific Research in Science
2356-8364
2356-8372
2016-09-01
33
part1
513
526
10.21608/jsrs.2016.17153
17153
Original Article
Recovery of Vanadium and Lanthanides from the Processed Carbonate-Rich Latosol of Abu Thor Locality, Southwestern Sinai, Egypt
Fatma salem
fatemasalem1977@yahoo.com
1
Enass El-Sheikh
2
Reda Ghazala
3
Abd Elaziz Abdelwarith
4
Saadia Ali
5
Nuclear Materials Authority, P.O. Box 530 El-Maadi, Cairo, Egypt
Nuclear Materials Authority, P.O. Box 530 El-Maadi, Cairo, Egypt
Nuclear Materials Authority, P.O. Box 530 El-Maadi, Cairo, Egypt
Nuclear Materials Authority, P.O. Box 530 El-Maadi, Cairo, Egypt
Chemistry Department- College for Women of Art, Science and Education- Ain Shams University
In a previouswork, chemical processing of carbonate-rich latosol of Abu Thor locality have successfully recovered both of U and Cu contents by applying two successive steps of leaching processes. From the latter, the remaining two metal values; namely V and Lns were left behind in the spent residue. The latter represents the feed material of the present work for V (1050 ppm) and Lns (649 ppm ) recovery.
The work involves selective leaching process for V using alkali breakdown with Sodium hydroxide (NaOH) followed by its precipitation asV2O5. The Lanthanides (Lns) left behind was then leached by using sulfuric acid followed by its precipitation as a highly pure Lns oxalate.
https://jsrs.journals.ekb.eg/article_17153_7f5d9d4143b6eedcfbf480a86c8cd83f.pdf
recovery
Vanadium
Lanthanides
sulfuric acid
sodium hydroxide
eng
Ain Shams University, Faculty of Women for Arts, Science and Education
Journal of Scientific Research in Science
2356-8364
2356-8372
2016-09-01
33
part1
504
512
10.21608/jsrs.2016.17154
17154
Original Article
Effect of sulphate on the hydration of different cement-nanometakaolin pastes
S. Helall
sara_science@yahoo.com
1
D. Ahmed
2
M. Mohamed
3
S. Ragaay
4
Chemistry Dep., Faculty of Girls, Ain Shams University, Cairo, Egypt
Chemistry Dep., Faculty of Girls, Ain Shams University, Cairo, Egypt
Chemistry Dep., Faculty of Girls, Ain Shams University, Cairo, Egypt
Chemistry Dep., Faculty of Girls, Ain Shams University, Cairo, Egypt
The physico-chemical characteristics of cement pastes are studied in absence and presence of nano metakaolin (NMK), silica fume (SF) and cement kiln dust (CKD); (2, 4, 6, 8 and 10%)which immersed in 5%MgSO4. These characteristics are investigated at different hydration times up to 180 days via determination of the compressive strength and 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 indicated that the presence of nano metakaolin accelerates the hydration of the pastes that exhibit higher compressive strength than the ordinary Portland cement alone. The optimum mixes are containing 10% NMK and mix containing 8% NMK and 2%SF.
https://jsrs.journals.ekb.eg/article_17154_d41d8cd98f00b204e9800998ecf8427e.pdf
Nano metakaolin
Silica Fume
Cement kiln dust
Sulfate resistance
Hydration characteristics of cement
eng
Ain Shams University, Faculty of Women for Arts, Science and Education
Journal of Scientific Research in Science
2356-8364
2356-8372
2016-09-01
33
part1
489
503
10.21608/jsrs.2016.17156
17156
Original Article
Removal of copper ions by Friedel´s salt
Mai Mohamed
email.maishahin21@yahoo.com
1
Essam Kishar
essamkishar@hotmail.com
2
Doaa Ahmed
3
Tarek El-sokary
4
Chemistry Department, Faculty of Girls, Ain Shams University, Cairo, Egypt
Chemistry Department, Faculty of Girls, Ain Shams University, Cairo, Egypt
Chemistry Department, Faculty of Girls, Ain Shams University, Cairo, Egypt
Housing and Building National Research center, Cairo, Egypt
Friedel's salt (3CaO.Al2O3.CaCl2.10H2O) or (Ca4Al2(OH)12Cl2(H2O)4), a layered double hydroxide (LDHs), is a calcium aluminate hydrate and used as an adsorbent for copper (Cu2+) ions from aqueous solution .In our study,we carefully examined the adsorption behaviors of Friedel's salt toward different concentrations of copper solutionat pH = 4. Both experimental and modeled data indicate that Friedel's salt can adsorb all copper ions from solution at pH=4 for total [Cu/mg] in solution= 724.8 mg/l (3mM/l) with high efficiency ˃99.9 % of adsorbent FS.The FS, at different pHs,shows a higherstability at pH=6 thanat pH=4 andpH=8. Finallythis study suggests that Friedel's salt is a potential cost – effective adsorbent for Cu [ІІ] removal.
https://jsrs.journals.ekb.eg/article_17156_42ef77394eec5a4362e7548bf43d9225.pdf
LDHs
Friedel’s salt
adsorption/exchange
copper
eng
Ain Shams University, Faculty of Women for Arts, Science and Education
Journal of Scientific Research in Science
2356-8364
2356-8372
2016-09-01
33
part1
434
448
10.21608/jsrs.2016.18341
18341
Original Article
Synthesis, Physicochemical, Thermal and Fluorescence Studies of Cobalt(II) Complex with Tridentate (ONS) Schiff Base Ligand Derived From 2-Aminophenol and 2-Acetylthiophene
Manara Ayoub
1
Eman AbdElnasser
2
M. Abedel-aziz
3
Mariam R.
mariamgirgis635@yahoo.com
4
Chemistry Dep., Faculty of Girls for Arts, Science and Education , Ain Shams University, Cairo, Egypt, P.O. BOX 11757, Egypt.
Chemistry Dep., Faculty of Girls for Arts, Science and Education , Ain Shams University, Cairo, Egypt, P.O. BOX 11757, Egypt.
Chemistry Dep., Faculty of Girls for Arts, Science and Education , Ain Shams University, Cairo, Egypt, P.O. BOX 11757, Egypt.
Chemistry Dep., Faculty of Girls for Arts, Science and Education , Ain Shams University, Cairo, Egypt, P.O. BOX 11757, Egypt.
A tridentate Schiff base ligand HL(ATS), N-[2-acetylthiophene]-salicylideneimine was derived from the 1 : 1 condensation of 2-acetyl thiophene and 2-aminophenol was prepared and characterized by elemental analysis, FT-IR, Mass, 1H-NMR, UV-VIS, thermogravimetric analysis and fluorescence spectra. Cobalt(II) complex was obtained by the reaction of the Schiff base ligand (HL) with cobalt(II) hexahydrate in 1 : 1 molar ratio. The cobalt (II) complex have been characterized by elemental analysis, FT-IR, 1H-NMR, Ms, UV-VIS, magnetic moment, molar conductance, thermogravimetric analysis (TGA) and fluorescence spectra. Elemental analysis (CHNS) data proved 1 : 1 (M : L) stoichiometry for the reported cobalt (II) complex. IR spectra showed that cobalt (II) complex was coordinated in metal ions via the imine N, O and S atoms. Magnetic and UV-VIS spectra, showed that the geometrical structure of cobalt(II) complex is an octahedral. The molar conductance data revealed that the cobalt(II) complex is non-electrolyte. Thermogravimetric analysis (TGA) revealed the high thermal stabilities.
https://jsrs.journals.ekb.eg/article_18341_e08ae02920bf44b4c575f1bfea7737c1.pdf
2-acetyl thiophene and 2-aminophenol
cobalt(II) complex
eng
Ain Shams University, Faculty of Women for Arts, Science and Education
Journal of Scientific Research in Science
2356-8364
2356-8372
2016-09-01
33
part1
449
462
10.21608/jsrs.2016.18343
18343
Original Article
Inhibitive Efficiency of Some Cellulosic materials as Corrosion Inhibitors for Mild Steel in petroleum Industry
Mostafa Ahmed
sofi_boltezman@hotmail.com
1
Mamdouh Doheim
2
Nabila Ali
3
Wessam El-Sayed
4
Nasr Oil Petroleum Company, Suez, Egypt
Egyptian Petroleum Research Institute, Nasr City, Cairo, Egypt,
Suez Oil Processing Company, Suez, Egypt
Faculty of Science, Suez University, Suez, Egypt 5. Faculty of Science and Arts, University of Jeddah, Alkamil, Ksa.
Green inhibitors plant extracts have become important as an environmentally acceptable, readily available and renewable source for wide range of inhibitors. They are the rich sources of ingredients which have very high inhibition efficiency. This article gives a vivid account of natural products which are used as corrosion inhibitors for various metal and alloys in aggressive media. The purpose of this study aimed to assess some of highly efficient environmentfriendly corrosion inhibitors for corrosion protection of steel in different environments. The novel corrosion inhibitor is based on the investigation of function groups of the extract of crushed adsorbent materials which are responsible for the inhibition of corrosion. The second part of this study will include studying of some factors affecting on inhibition corrosion process such as pH, inhibitor dose, concentration of medium, temperature of solution, as well as the contact time in (acidic) medium at 25oC.
https://jsrs.journals.ekb.eg/article_18343_45e81915e5b250f3f5a87af0db046977.pdf
Corrosion
corrosion inhibitors
natural inhibitors
green inhibitors
Plant extracts
eng
Ain Shams University, Faculty of Women for Arts, Science and Education
Journal of Scientific Research in Science
2356-8364
2356-8372
2016-09-01
33
part1
463
488
10.21608/jsrs.2016.18344
18344
Original Article
Simple and Efficient Methods for the Synthesis of New Biologically Active Heterocycles
Rana Elzamly
ranaelzamly@yahoo.com
1
Howida Zaky
2
nadia Kandile
nadiaghk@yahoo.com
3
Department of Chemistry, Faculty of Women, Ain Shams University, Heliopolis,11757 Cairo, Egypt
Department of Chemistry, Faculty of Women, Ain Shams University, Heliopolis,11757 Cairo, Egypt
Chemistry Department Faculty of Women, Ain shams University,Heliopolis,Cairo,Egypt
An efficient and simple synthesis of fused pyridazine derivatives has been developed. These fused pyridazines were used as key starting material for the preparation of new heterocyclic compounds. All the structures of the newly synthesized compounds were confirmed on the basis of FT-IR, 1H and 13CNMR, mass spectral techniques. Six of the new synthesized compounds (6f , 8c-f and 8i) were selected and tested against a panel human tumor cell line HCT-116 (colon cancer) using Imatinib as standard drug. The cytotoxicity data of the tested compounds virus Imatinib in means of IC50 values were (6f, 8c-f and 8i) recorded as in (Figure I). The obtained data showed that the compounds 1-(3-(2-methoxyphenyl)-7-methoxyphenylisoxazolo[4,5-d]pyridazin-4-yl)hydrazine (8i) and 1-(3-(2-methoxyphenyl)-1-phenyl-7-methoxyphenyl-1H-pyrazolo[4,3-d]pyridazin-4-yl)hydrazine (8f) have high reactivity towards cell line HCT-116 (colon cancer) more than the standard drug Imatinib.
https://jsrs.journals.ekb.eg/article_18344_9a428f4cc64e307490c5a5fbae0bbc0d.pdf
Heterocyclic compounds
Fused pyridazines
Tetrazolo
Sulfonamide
Colon cancer