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Articles 1 - 30 of 591
Full-Text Articles in Life Sciences
Bacterial Coinfections And Antibiogram Profiles Among Icu Covid-19 Patients, Mohamed M. Elsharkawy, Ahmed M. Eid, Nancy M. Attia, Amr Fouda
Bacterial Coinfections And Antibiogram Profiles Among Icu Covid-19 Patients, Mohamed M. Elsharkawy, Ahmed M. Eid, Nancy M. Attia, Amr Fouda
Al-Azhar Bulletin of Science
The fact that patients with a viral respiratory infection are more likely to develop a bacterial infection and the recently reported prevalence of bacterial co-infection among COVID-19 patients in the ICU and its association with serious disease complications. However, the role of co-bacterial infection still needs a lot of study and research. This study was designed to investigate the frequency and etiology of bacterial infections in patients with COVID-19 admitted to the ICU and exploring their antibiogram sensitivity. We conducted the blind mini-bronchoalveolar lavage (BAL) sampling technique, VITEK 2 compact system for bacterial identification; K. pneumoniae was the most frequently …
Destructive Cellular And Anticoagulant Activities Of Chitosan Extracted From The Oriental Hornet, Vespa Orientalis L. (Hymenoptera: Vespidae) And The Rice Grasshopper, Aiolopus Thalassinus (Orthoptera: Acrididae), Ibrahim S. Ghannam, Mostafa I. Hassan, Ahmed I. Hasaballah, Mohamed A. Awad, Ahmed Z.I. Shehata
Destructive Cellular And Anticoagulant Activities Of Chitosan Extracted From The Oriental Hornet, Vespa Orientalis L. (Hymenoptera: Vespidae) And The Rice Grasshopper, Aiolopus Thalassinus (Orthoptera: Acrididae), Ibrahim S. Ghannam, Mostafa I. Hassan, Ahmed I. Hasaballah, Mohamed A. Awad, Ahmed Z.I. Shehata
Al-Azhar Bulletin of Science
The current investigation tested Chitosan isolated from adult Vespa orientalis and Aiolopus thalassinus for its cytotoxic and anticoagulant effects. Chitosan was analyzed for its effects on human breast cancer cells (MCF-7), human liver cancer cells (HepG2) and lung fibroblast cells (WI-38) after being extracted and characterized by Fourier transform infrared spectroscopy (FT-IR), X-ray diffraction (XRD) and scanning electron microscopy (SEM). Also, the anticoagulant activity of extracted chitosan using activated partial thromboplastin time (APTT) and Prothrombin Time (PT) assays was investigated. Results showed that cytotoxic activity of both extracted chitosan samples recorded cellular viability of MCF-7 cell line equal to 17.99 …
The Antimicrobial Activity Of Six New Synthesized Gemini Surfactants: The Effect Of Spacer And Alkyl Chain Length, Sharbat Bakr, Entsar Badr, Eman Kandeel, Nashwa Bin-Hudayb, Yasmeen Mahmood
The Antimicrobial Activity Of Six New Synthesized Gemini Surfactants: The Effect Of Spacer And Alkyl Chain Length, Sharbat Bakr, Entsar Badr, Eman Kandeel, Nashwa Bin-Hudayb, Yasmeen Mahmood
Al-Azhar Bulletin of Science
New Six cationic Gemini surfactants (GS) with varying alkyl chain lengths and spacer properties were synthesized. The effects of alkyl chain length and spacer characters on antimicrobial activity were investigated. The first group of compounds was known as (2-2'-(ethane-1, 2-diylbis (oxy)) bis (N-(2-alkanamidoethyl)-N, N dimethyl-2-oxoethan-1-aminium)) dichloride, and it had three different alkyl chain lengths (CGSES12, 14 and 16). The general name for the second group was (N1,N1,N3,N3-tetramethyl-N1,N3-bis(2-alkanamidoethyl)propane-1,3-diaminium bromide) with three different alkyl chain lengths, designated as (CGSPS12, 14 and 16).The antimicrobial activity of each surfactant was evaluated by determining the minimum inhibitory concentration (MIC) and the zone of inhibition against …
The Role Of Carboxymethyl Chitosan/Hyaluronic Acid Embedded Gold Nanoparticles As Hyperlipidemic And Leptin Resistance Agent, Samah Diab, Moustafa Fouda, Carmen Sharaby, Mohamed Roushdy, Hanaa Elsayed
The Role Of Carboxymethyl Chitosan/Hyaluronic Acid Embedded Gold Nanoparticles As Hyperlipidemic And Leptin Resistance Agent, Samah Diab, Moustafa Fouda, Carmen Sharaby, Mohamed Roushdy, Hanaa Elsayed
Al-Azhar Bulletin of Science
In this work, hyaluronic acid (HA)/carboxymethyl chitosan (CMCTs) blend, embedded with definite amount of gold nanoparticles (AuNPs), were utilized to mitigate lipid profile and leptin resistance in obese rats. AuNPs were produced through Microwave radiation technique, followed by characterization using the state of art analysis; UV and TEM, Average particle size EDX, XRD and IR. Afterward, 70 male albino rats were divided into two main groups: Group one "n=10 rats" fed healthy diet (negative control). The 2nd group fed on the high fructose diet (HFD) for 4 weeks to induce hyperlipidemia and obesity. To this end, the 2nd group is …
New Investigation Of Asymmetric Wall Temperature And Fluid-Wall Interaction On Radiative Steady Mhd Fully Developed Natural Convection In Vertical Micro-Porous–Channel, Hussein Soliman
Al-Azhar Bulletin of Science
This sort of research might be used to improve the design of micro-pumps and micro heat exchangers. Understanding the fluid flow and heat transfer properties of the buoyancy-induced micro pump and micro heat exchangers in microfluidic and thermal systems is extremely important.In three cases of asymmetric distributions of walls temperature of a vertical micro- porous–channel, the effect of viscous dissipation and heat generation on radiative steady MHD fully developed natural convection flow was investigated analytically using Differential Transform Method (DTM) and numerically using Finite Difference Method (FDM). The velocity slip and temperature jump circumstances are both taken into account since …
Solar Activity Cycles Recur Epidemic And Pandemic Viruses: Space Weather’S Alerts, Ramy Mawad, Hanafy Madbouly, Ehab Mahdy
Solar Activity Cycles Recur Epidemic And Pandemic Viruses: Space Weather’S Alerts, Ramy Mawad, Hanafy Madbouly, Ehab Mahdy
Al-Azhar Bulletin of Science
This paper studies pandemic viruses that spread during the period (1759-2020) according to solar activity cycles. Our findings and results include the following: (1) the pandemic severity level has a negative correlation with the strength of solar activity; (2) pandemic viruses are of three types according to their compatibility with solar activity association. Most of them spread through the quiet Sun, where viruses survive better in cold and rainy weather; (3) the emergence of new strains of influenza viruses was manifested in two ways. First, the annual epidemics due to antigenic drift. Second, pandemics recur at 1-12 solar cycles (~11-120 …
Impact Of Wastewater Irrigation On Chemical Composition And Heavy Metals Accumulation In Soil (Study Case: Helwan-El Saff Area), Mervat Elliethy, Abdel Aziz Ragab, Ramadan Bedair, Om Mohamed Khafagi
Impact Of Wastewater Irrigation On Chemical Composition And Heavy Metals Accumulation In Soil (Study Case: Helwan-El Saff Area), Mervat Elliethy, Abdel Aziz Ragab, Ramadan Bedair, Om Mohamed Khafagi
Al-Azhar Bulletin of Science
This investigation was conducted on nine sites at Helwan – El Saff area, Cairo, and Giza governorates (polluted area), and three sites, in Metrabeaa village, Monofia governorate (control). This study aimed to assess the impact of wastewater irrigation on soil quality and to test the possibility of using it as an alternative for fresh water in irrigation of agricultural land. Water and soil samples were collected from El-Khashab canal (polluted water) and Al-Bagoria canal (Nile water) and cultivated land sites adjacent to them during two seasons (July 2019 and July 2020). The values of electric conductivity (EC), sodium adsorption ratio …
The Spermicidal Effect Of The Honeybee Apis Mellifera Venom And Its Major Component Melittin, Mohamed Abdel-Hafez, Mohamed Abdel Rahman, Hesham Elshaer, Moustafa Sarhan
The Spermicidal Effect Of The Honeybee Apis Mellifera Venom And Its Major Component Melittin, Mohamed Abdel-Hafez, Mohamed Abdel Rahman, Hesham Elshaer, Moustafa Sarhan
Al-Azhar Bulletin of Science
Several spermicide products are currently used containing detergent as the active ingredient. Those molecules showed a bad effect on normal vaginal epithelial cells and microflora. They also increase the possibility of cervical or vaginal infections or ulceration. In this study, the possible effects of crude bee venom (BV) of the honeybee (Apis mellifera) and its common bioactive peptides on human sperm motility were evaluated in vitro. Serially diluted BV and its bioactive peptides at noncytotoxic concentrations were tested for sperm immobilization by Sander-Cramer assay. The sperm viability test and the hypo-osmotic swelling were used to check the vitality and the …
In Vitro Schistosomicidal Activity Of Five Common Species Of Red Sea Cone Snail Muscle Extracts, Mahmoud Abd-Allah, Mohammed Abdelwahab, Nagwa Aly, Omar Amer, Moustafa Sarhan
In Vitro Schistosomicidal Activity Of Five Common Species Of Red Sea Cone Snail Muscle Extracts, Mahmoud Abd-Allah, Mohammed Abdelwahab, Nagwa Aly, Omar Amer, Moustafa Sarhan
Al-Azhar Bulletin of Science
The potential antischistosomal activity of Conus muscle extract on the adult worms of Schistosoma mansoni was studied In vitro. Live specimens of five common species of cone snails were collected from several locations on the Egyptian Red Sea coast. The muscles of these snails had been collected after crushing their shells to prepare the muscle extracts. The adult worms of S. mansoni were isolated from the blood circulation by perfusion technique using phosphate buffer. After 1- 4 days of exposure to cone snails muscle extracts at varying doses, the worm’s motility and mortality rates were examined. The results showed that …
Application Of Well Log Analysis To Estimate The Petrophysical Parameters Of The Lower Rudeis Formation In July Oilfield, Gulf Of Suez, Egypt, Moataz Barakat, Nader El-Gendy, Ahmed El-Shishtawy, Fouad Shawaf
Application Of Well Log Analysis To Estimate The Petrophysical Parameters Of The Lower Rudeis Formation In July Oilfield, Gulf Of Suez, Egypt, Moataz Barakat, Nader El-Gendy, Ahmed El-Shishtawy, Fouad Shawaf
Al-Azhar Bulletin of Science
The Gulf of Suez is considered as a multi-reservoir’s basin, containing several reservoirs. It is located at the northeast end of the African plate, along the African-Arab plates. One of the main reservoirs in the Gulf of Suez is the Lower Rudeis (July Member), especially in July Oilfield, and was deposited during the Early Miocene. Comprehensive studies were performed to illustrate the relationships between the different reservoir parameters measured through the well log analysis. The July member reservoir was divided into three zones based on geophysical log responses: denominate zones (A), (B) and zone (C). Petrophysical parameters were calculated, together …
Treatment Of Failure Vulnerability Section Quattamiya - Sokhna Highway Road Through Integrated Geophysical And Geotechnical Studies, Mohamed Musa, Tharwat Abdelhafeez, Ahmed Saad
Treatment Of Failure Vulnerability Section Quattamiya - Sokhna Highway Road Through Integrated Geophysical And Geotechnical Studies, Mohamed Musa, Tharwat Abdelhafeez, Ahmed Saad
Al-Azhar Bulletin of Science
A geophysical investigation and geotechnical technics were carried out at Quattamiya - Sokhna highway, passing through the study area to evaluate the effectiveness of electrical resistivity imaging for assisting in site characterization. The prevailed subsurface structures such as shale layer, clayey soil, fractures, faults, voids, cavities, and other features are affecting the Eocene limestone bedrock of the study area. The aim was to determine which method or methods could be best used to discover surface or subsurface geotechnical problems.Investigate the future of pavement research directions for applying engineering geophysical technologies and possible challenges that may face pavement engineers. Results showed …
The Impact Of Seismic Attribute To Delineate The Erosion Surface Of Matruh Canyon At Emry Oil Field, Western Desert, Egypt., Ahmed Essa, Tharwat Abdelhafeez, Salah Saleh
The Impact Of Seismic Attribute To Delineate The Erosion Surface Of Matruh Canyon At Emry Oil Field, Western Desert, Egypt., Ahmed Essa, Tharwat Abdelhafeez, Salah Saleh
Al-Azhar Bulletin of Science
Base Matruh Canyon is an erosional surface had an impact on the reservoir continuity of (Hauterivian age) (Alam El Bueib IIIG), the unconformity related to Matruh Canyon. It is a high risk, in case the unconformity surface does not delineate, several wells will drill with negative results. The main object of the study is working to delineate the Base Matruh Canyon within the lower cretaceous for Matruh basin, the delineation of Matruh Canyon is a key factor to apprise and develop the area. For this reason, the well data and the 2D seismic data were exercised to expose the unconformity …
Reservoir Characterization Of The Bahariya Formation Using Core Analysis And Well Logging Integration At Al Zahraa Field, North Western Desert, Egypt, Fathy Arafa, Tharwat Abdelhafeez, Mohamed Mohamed
Reservoir Characterization Of The Bahariya Formation Using Core Analysis And Well Logging Integration At Al Zahraa Field, North Western Desert, Egypt, Fathy Arafa, Tharwat Abdelhafeez, Mohamed Mohamed
Al-Azhar Bulletin of Science
The Bahariya Formation encountered in Al Zahraa oil and gas field is subdivided informally into Upper and Lower Bahariya members, and it consists mainly of sand layers occupying the lowermost of the Bahariya section while the stacking sandy shale layers are common in the upper part. The thickness of each Upper and Lower Bahariya members along the study area ranged from 201 feet to 305 feet and 330 feet to 417 feet respectively. The Upper Bahariya Cenomanian section is dominated by shale and siltstones and thin streaks of moderate to good reservoir quality sandstones occur in this section but with …
Amelioration Of Sodium Nitrate-Induced Kidney And Lipid Disorders Thru Combination Of Silver Nanoparticles With Wheat Germ Oil, Invitro/Invivo, Seham Orabi, Carmen Sharaby, Mohamed Roushdy, Hanaa Elsayed, Moustafa Fouda
Amelioration Of Sodium Nitrate-Induced Kidney And Lipid Disorders Thru Combination Of Silver Nanoparticles With Wheat Germ Oil, Invitro/Invivo, Seham Orabi, Carmen Sharaby, Mohamed Roushdy, Hanaa Elsayed, Moustafa Fouda
Al-Azhar Bulletin of Science
Nanomaterial may aid in improving the human quality of life. This study supposed silver nanoparticles (Ag NPs) and" wheat germ oil (WGO)" eliminate the negative consequences of sodium nitrate (NaNO3) on kidney and lipid disorders. Ag NPs were synthesized with two concentrations (10, 50 ppm). Spectroscopic techniques such as UV–Vis, X-ray diffraction (XRD), atomic force microscopy (AFM), and dynamic light scattering (DLS) were extensively used for the characterization of the Ag NPs. They had an average size of 16.8 nm, a poly disparity index (PDI) of 0.3, and a zeta potential (ZP) of -34.8. Bacillus subtilis (ATCC 6633) was utilised …
Some Generalizations Of Reverse Hardy-Type Inequalities Via Jensen Integral Inequality On Time Scales, Samer Makharesh, Hassan El-Owaidy, Ahmed El-Deeb
Some Generalizations Of Reverse Hardy-Type Inequalities Via Jensen Integral Inequality On Time Scales, Samer Makharesh, Hassan El-Owaidy, Ahmed El-Deeb
Al-Azhar Bulletin of Science
In this article, we will obtain some new dynamic inequalities of Hardy-type on time scales. Our results will be proved by using H lder's inequality and Jensen's inequality. We will apply the main results to the continuous calculus and discrete calculus as special cases.
A Comparative Study On Two Hybrids Of Silkworm Bombyx Mori (L.) Reared On Mulberry Leaves Morus Alba Var. Kanava-2., Hamzah Kamel
A Comparative Study On Two Hybrids Of Silkworm Bombyx Mori (L.) Reared On Mulberry Leaves Morus Alba Var. Kanava-2., Hamzah Kamel
Al-Azhar Bulletin of Science
The recent investigation was carried out at the Department of Plant Protection, Faculty of Agriculture, Al-Azhar Univ., Nasr City, Cairo, Egypt. The comparative Study on two hybrids of silkworm Bombyx mori (HoxK1xR3xT3) from (Produced by sericulture and agriculture experiment station, Vra Tza, Bulgaria silkworm) B.mori, were obtained from the Sericulture Research Department of Plant Protection Research Institute, Agricultural Research Centre, Giza- Egypt, and (J444) native hybrid reared on mulberry leaves Morus albavar. kanava-2. silk production as well as quality of silk cocoon depends on the nutritional value of mulberry leaves and larval growth. Obtained results illustrated that feeding of silkworm …
Geochemical Exploration Of U-Mo-W Younger Late-Orogenic Granites, El-Urf - El-Dob - Abu-Kharif Geochemical Province, Safaga-Qena Tectonic Discontinuity Belt, Eastern Desert, Egypt, Islam El Naggar, Mahmoud Hassaan, Taher Shahin, Sayed Omar, Ahmed Khalil
Geochemical Exploration Of U-Mo-W Younger Late-Orogenic Granites, El-Urf - El-Dob - Abu-Kharif Geochemical Province, Safaga-Qena Tectonic Discontinuity Belt, Eastern Desert, Egypt, Islam El Naggar, Mahmoud Hassaan, Taher Shahin, Sayed Omar, Ahmed Khalil
Al-Azhar Bulletin of Science
El-Urf, El-Dob and Abu-Kharif Late-Orogenic Granite bodies are located north Safaga-Qena Tectonic Discontinuity, between latitudes of 26° 37ʹ and 26° 50ʹ N, and longitudes of 33° 20ʹ and 33° 28ʹ E. These three bodies constitute a geochemical province where El-Urf granite is bearing uranium, while El-Dob and Abu-Kharif Y Gr are hosting tungsten-molybdenum and tungsten respectively. Fieldwork integrated with remote sensing techniques and geochemical studies identified controlling factors, pathfinders, and the genesis of these deposits. The rock types, structures, and alteration processes are identified. The geochemical analyses of host rocks indicate alkali, highly fractionated calc-alkaline to alkaline, within plate to …
Bio- Waste As Eco-Friendly Adsorbent For The Removal Of Hazardous Dyes, Fatema Al-Zahra Reda, Heba El Refay, Asrar Goma, Nagwa Badawy, Samia Abufarha, Abeer El-Sayed
Bio- Waste As Eco-Friendly Adsorbent For The Removal Of Hazardous Dyes, Fatema Al-Zahra Reda, Heba El Refay, Asrar Goma, Nagwa Badawy, Samia Abufarha, Abeer El-Sayed
Al-Azhar Bulletin of Science
In recent years color removal from textile effluents on an industrial scale has received a lot of attention not only because of its potential toxicity but also because of its visibility issue. The current study investigated the use of Banana Peel (BP) as a low-cost adsorbent for Reactive Red 43 (RR43) and Malachite Green (MG) removal from aqueous solution. There are numerous color removal techniques, the most common of which is adsorption. The practical performance evaluation in a batch reactor is carried out due to its feasibility of operation. In our batch system, we looked at variables like initial dye …
Synthesis, Characterization, And Evaluation Of Allyl Polymeric Additives As Pour Point Depressant, Ibrahim Radwan, Ahmed Ibrahim, Ashraf Ashmawy, Mohamed Mohammedy, Farag Abdel Hai
Synthesis, Characterization, And Evaluation Of Allyl Polymeric Additives As Pour Point Depressant, Ibrahim Radwan, Ahmed Ibrahim, Ashraf Ashmawy, Mohamed Mohammedy, Farag Abdel Hai
Al-Azhar Bulletin of Science
Pour point depressants (PPDs) are commonly used as chemical wax inhibitors and rheological property improvers in the oil and gas industry in order to improve the flow ability of crude oil. In this study, polymeric additives based on stearyl acrylate (StA)-acrylic acid (AA)-allyl oleate (AO) were prepared via the free radical polymerization method. The obtained polymers were characterized by FTIR, 1H-NMR,GPC, TGA, and DTA. The results indicated the successful formation of the copolymers. The prepared polymers were investigated as PPDs and rheology modifiers for the Egyptian waxy North Qattara crude oils, and the results indicated that the pour point depression …
A Novel Kind Of Generalized Belief Interval-Valued Soft Set And Its Application In Decision- Making, Rehab Basheer, Ahmed Khalil, Ahmed Zahran
A Novel Kind Of Generalized Belief Interval-Valued Soft Set And Its Application In Decision- Making, Rehab Basheer, Ahmed Khalil, Ahmed Zahran
Al-Azhar Bulletin of Science
In this paper, we introduce the novel concept of generalized belief interval-valued soft set (briefly, GBIVSS) and examine their properties. Also, we define the nine types of operations (for example, subset, equal, union, intersection, restricted union, extended intersection, complement, soft max-AND, and soft min-OR) on the GBIVSS. The basic theoretical of the above nine operations are given. Based on the concept of GBIVSS, we construct an algorithm to solve the soft decision-making problem, and extended their applicability with help of illustrative examples. Finally, a comparative analysis study has been constructed and compared with the result of Bashir et al.’s approach.
The Implications Of N =2 Supergravity Cosmology On The Topology Of The Calabi-Yau Manifold, Safinaz Salem, Moataz Emam, Hala Salah
The Implications Of N =2 Supergravity Cosmology On The Topology Of The Calabi-Yau Manifold, Safinaz Salem, Moataz Emam, Hala Salah
Al-Azhar Bulletin of Science
When N = 1 D = 11 supergravity is compactified on CY threefold to N = 2 D = 5 supergravity, the action of the last is given in terms of the geometry of the CY manifold space, namely, in terms of the hypermultiplets. There are zi (i = 1,...,h2,1) complex structure moduli in the moduli space of the CY manifold which’s a special manifold with a metric . We solve the field equations of the complex structure moduli with the solution of the Einstein field equations to the moduli velocity norm in the case of a 3- brane filled …
On The Representation Of Analytic Functions By Series Of Derived Bases Of Polynomials In Hyperelliptical Regions, Mohamed Al-Sheikh, Gamal Hassan, Abd Almonem Ibrahim, Ahmed Zahran
On The Representation Of Analytic Functions By Series Of Derived Bases Of Polynomials In Hyperelliptical Regions, Mohamed Al-Sheikh, Gamal Hassan, Abd Almonem Ibrahim, Ahmed Zahran
Al-Azhar Bulletin of Science
One of the important themes in complex analysis is the expansion of analytic functions by infinite series in a given sequence of bases of polynomials. In the present paper, we investigated the representation of analytic functions in different domains of derived bases of polynomials. The behaviour of the associated representation of whole functions is directly related to determining the convergence properties (effectiveness) of such bases. The representation domains are closed hyperellipses, open hyperellipses, and closed regions surrounding a closed hyperellipse. Also, some results concerning the order of derived bases in hyperellipse are obtained. The results obtained are natural generalisations of …
Effect Of Cryoprotectants On Camel Oocytes Vitrification, Hagar Yassin, Nehal Abu-Elnaga, Bahaa Farrag, Khalid El-Bahrawy
Effect Of Cryoprotectants On Camel Oocytes Vitrification, Hagar Yassin, Nehal Abu-Elnaga, Bahaa Farrag, Khalid El-Bahrawy
Al-Azhar Bulletin of Science
The objective of this study was to show how two cryoprotectants affect the vitrification rate in immature camel oocytes when used in a separate or a mixed form. As a result, their ability to mature after being warmed was recorded. The cumulus oocytes complexes (COCs) were divided into four groups, control; EG (30 percent ethylene glycol) in vitrification solution (VS); DMSO (30 percent dimethyl sulfoxide); MIX (15 percent EG + 15 percent DMSO) in vitrification solution (VS). COCs were impeded in equilibration solution (ES) for 2 minutes before being transferred to a vitrification solution containing 30% cryoprotecting agent (EG, DMSO, …
The Possible Role Of Curcumin-Chitosan Nanocomposite In Reducing The Impairment Effect Of Carbon Tetrachloride On The Testis Tissue In Liver Fibrosis Model, Fatam Elraei Elsherbeny, Nehal Abu-Elnaga, Asmaa Abd El-Azez, Neamat Ahmed Osman
The Possible Role Of Curcumin-Chitosan Nanocomposite In Reducing The Impairment Effect Of Carbon Tetrachloride On The Testis Tissue In Liver Fibrosis Model, Fatam Elraei Elsherbeny, Nehal Abu-Elnaga, Asmaa Abd El-Azez, Neamat Ahmed Osman
Al-Azhar Bulletin of Science
The goal of the study is to examine the action of Curcumin-Chitosan (Cur-Chito) nanocomposite supplementation against Carbon tetrachloride toxicity (liver fibrosis model) induced testis impairment. Four groups of 60 mice were under investigation; normal control, Carbon tetrachloride, prevention, and treatment group. Mice were IP injected with Carbon tetrachloride (0.5 ml/kg body weight) 3 times /week x4 weeks to induce liver fibrosis injury. While mice were orally administrated Cur-Chito nanocomposite (100ml/k.g. body weight) 5 times/week x 4 weeks as a style of prevention and treatment. The physiological and biochemical analysis, testis and body weights, semen concentration, were all recorded. The treatment …
Contribution Of Organic Compost And Bacterial Inoculation In Improving Quality Of Quinoa Seeds, Abeer Mousa, Rabab Ibrahim, Yehia Galal
Contribution Of Organic Compost And Bacterial Inoculation In Improving Quality Of Quinoa Seeds, Abeer Mousa, Rabab Ibrahim, Yehia Galal
Al-Azhar Bulletin of Science
Biofertilizers and organic compost are a important source of plant supplements during the plant development. Compost was used to pots under greenhouse condition with the application doses of 0, 50, 100, and 200 kg ha−1 on the basis of its nitrogen content. Bacterial strains of Azotobacter chroococcum (a symbiotic nitrogen fixer) and Bacillus polymyxa as plant growth-promoting rhizobacteria (PGPR) were applied as biofertilizers. Pot test was done to quality the role of organic compost in combination with bacterial inoculation. In general, organic compost and biofertilizers improved growth and seed quality of quinoa. Then again, the collaboration between bacterial inoculation and …
Utilization Of Geophysical And Sedimentological Studies In The Estimation Of The Subgrade Soil In Buraydah City, Kingdom Of Saudi Arabia, Osama El Shafaey, Ahmed Saad, Sherif Elkholey
Utilization Of Geophysical And Sedimentological Studies In The Estimation Of The Subgrade Soil In Buraydah City, Kingdom Of Saudi Arabia, Osama El Shafaey, Ahmed Saad, Sherif Elkholey
Al-Azhar Bulletin of Science
With the continuous increase in population and economic and vital activities in Saudi Arabia and the entire world, there has become a significant increase in the construction activities. So, an appropriate investigation was carried out to assess the geotechnical parameters to verify the suitability of Buraydah area for the urban extension using shallow seismic refraction technique and sedimentological studies. For this purpose, fifteen seismic refraction spread and fifty nine sediment samples conducted in the study area. The sedimentological study includes; grain size analysis, to evaluate the textural parameters and statistical measurements to describe the depositional pattern of the studied sediments …
Application Of Sedimentological And Radiometric Studies To Evaluate The Subsurface Soil For Some Localities Of New Administrative Capital Area Of Egypt., Ibrahim Othman, Ahmed Saad, Osama Draz
Application Of Sedimentological And Radiometric Studies To Evaluate The Subsurface Soil For Some Localities Of New Administrative Capital Area Of Egypt., Ibrahim Othman, Ahmed Saad, Osama Draz
Al-Azhar Bulletin of Science
This article includes geological, sedimentological and radiometric studies on some localities of new Administrative Capital. The subsurface soil of the study area composed fundamentally of weathered doleritic basaltic rocks and gravely sand. The sedimentological study includes particle size distribution, X-ray diffraction (X R D) for detection of clay minerals and petrographical studies, to describe and evaluate the textural parameters and statistical measurements to recognize the depositional pattern of sediment samples in the study area. The textural parameters results are graphic mean size varying from (-1.499f) to (5.195f) where the average is (1.205f) indicating medium sand grained. The sorting (σI) ranges …
Mineralogical Studies And Radioactivity Of Wadi Steih Stream Sediments, South Sinai, Egypt, Hassan Sherif, Ismail El Akeed, Mahmoud Gabr, Mahmoud Naser
Mineralogical Studies And Radioactivity Of Wadi Steih Stream Sediments, South Sinai, Egypt, Hassan Sherif, Ismail El Akeed, Mahmoud Gabr, Mahmoud Naser
Al-Azhar Bulletin of Science
Wadi Steih stream sediments are generally produced from long term successive physical and/or chemical weathering and consequence erosion processes of the surrounding rock units such as younger granites, Iqna volcanics and gabbro. The representative diagrams of the plotting of the average trace element contents versus those of the surrounding rock units along with the Co/Th ratio indicate that the trace elements recorded in the Wadi Steih stream sediments are derived from the surrounding rock units. The radiometric surveying indicates the over dominance of thorium rather than uranium. The thorium content ranges from 4.4 ppm to 335 ppm with an average …
Delineating The Regional Structures And Depth Of Basement Rocks Using The Gravity Data Analysis At West Assiut, Egypt., Mahmoud Elshamy, Alaa Mohamed, Mohamed Arfa, Abdelnasser Mohamed
Delineating The Regional Structures And Depth Of Basement Rocks Using The Gravity Data Analysis At West Assiut, Egypt., Mahmoud Elshamy, Alaa Mohamed, Mohamed Arfa, Abdelnasser Mohamed
Al-Azhar Bulletin of Science
The purpose of the gravity approach is to detect subsurface structures using disturbances in the earth's gravitational field produced at the surface. Gravity was used to outline the subsurface structures; due to the study area includes many huge national projects such as Assiut Cement, New Nasser City and Assiut International Airport, It is important to assess the subsurface geological structures in the area. Bouguer gravity data of Egyptian General Petroleum Company (EGPC 1984) was used to performed Bouguer gravity anomaly map at the study area to start the gravity interpretation by separation of the residual anomaly from regional anomaly and …
A New Algorithm For Minimizing Makespan Within Cloud Computing, Afaf Abdelhafiz
A New Algorithm For Minimizing Makespan Within Cloud Computing, Afaf Abdelhafiz
Al-Azhar Bulletin of Science
:The environment of cloud computing has become widely used in a variety of applications and fields in recent years. Task and resource scheduling, on the other hand, is an area where there is still room for development. Task scheduling methods that allow the mapping of incoming tasks to resources are required to meet good performance data mapping in a heterogeneous computing system. Makespan is reduced and resource usage is maximized when resources and tasks are efficiently mapped. A novel scheduling approach is proposed in this work, which improves the makespan. There are two phases to the recommended method. The Tuples …