Garden City College

Khartoum, Sudan

Garden City College

Khartoum, Sudan
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Prasad R.G.S.V.,Nano Research for Advanced Materials and Technologies | Phani A.R.,Nano Research for Advanced Materials and Technologies | Phani A.R.,Garden City College | Phani A.R.,Narayana Hrudayalaya Multi Specialty Hospital | And 7 more authors.
Journal of Biomedical Nanotechnology | Year: 2015

In this work, the biocompatibility and antibacterial activities of novel SnO2 nanowire coatings prepared by electron-beam (E-Beam) evaporation process at low temperatures were studied. The nanowire coatings were characterized by scanning electron microscopy (SEM), energy dispersive X-ray analysis (EDX), and X-ray diffraction (XRD) methods. The results of in vitro cytotoxicity and cell proliferation assays suggested that the SnO2 nanowire coatings were nontoxic and promoted the proliferation of C2C12 and L929 cells (>90% viability). Cellular activities, cell adhesion, and lactate dehydrogenase activities were consistent with the superior biocompatibility of the nanowire materials. Notably, the nanowire coating showed potent antibacterial activity against six different bacterial strains. The antibacterial activity of the SnO2 material was attributed to the photocatalytic nature of SnO2. The antibacterial activity and biocompatibility of the newly developed SnO2 nanowire coatings may enable their use as coating materials for biomedical implants. Copyright © 2015 American Scientific Publishers. All rights reserved.

Kumar G.P.,Veterinary College | Phani A.R.,Nano Research for Advanced Materials and Technologies | Phani A.R.,Garden City College | Phani A.R.,Narayana Hrudayalaya Multi Specialty Hospital | And 7 more authors.
International Journal of Pharmaceutics | Year: 2014

Enrofloxacin is a fluoroquinolone derivative used for treating urinary tract, respiratory and skin infections in animals. However, low solubility and low bioavailability prevented it from using on humans. Polyvinylpyrrolidone (PVP) is an inert, non toxic polymer with excellent hydrophilic properties, besides it can enhance bioavailability by forming drug polymer conjugates. With the aim of increasing solubility and bioavailability, enrofloxacin thin films were prepared using PVP as a polymer matrix. The obtained oral thin films exhibited excellent uniformity and mechanical properties. Swelling properties of the oral thin films revealed that the water uptake was enhanced by 21%. The surface pH has been found to be 6.8 ± 0.1 indicating that these films will not cause any irritation to oral mucosa. FTIR data of the oral thin films indicated physical interaction between drug and polymer. SEM analysis revealed uniform distribution of drug in polymer matrix. In vitro drug release profiles showed enhanced release profiles (which are also pH dependant) for thin films compared to pure drug. Antibacterial activity was found to be dose dependent and maximum susceptibility was found on Klebsiella pneumonia making this preparation more suitable for respiratory infections. © 2014 Elsevier B.V.

Eltahir M.A.,Blue Nile University | Dafa-Alla A.F.A.,Garden City College
Proceedings - 2013 International Conference on Computer, Electrical and Electronics Engineering: 'Research Makes a Difference', ICCEEE 2013 | Year: 2013

The growth of the Internet is increasing rapidly and the use of websites and web-based systems has become very common. The main problem that faces any website admin or any web application system is data increase per-second, which is stored in different types and formats in server log files about users, their future needs and maintains the structure and content of website or web services according to their previous data. Web usage mining aims at discovering useful information or knowledge from usage data registered in log files, based on primary kinds of data used in the mining process. By using one of the web mining techniques, this paper uses a web usage mining technique to procure knowledge from web server log files where all user navigation history is registered. © 2013 IEEE.

Singh A.,Garden City College | Chahal S.M.S.,Punjabi University
Internet Journal of Biological Anthropology | Year: 2010

To find out the incidence of sex-linked defective color vision in people of Bathinda district in southern Punjab, a survey was planned among the school going boys using standard Ishihara's Color Plates Chart. The present study was conducted on a total of 1,002 individuals belonging to 9 caste,11 backward caste and 5 scheduled caste endogamous groups, as well as a few from Muslim and Christian religious groups. In the total individuals screened as many as 34 cases of red-green color blindness and 3 of total color blindness were detected. All the red-green color blind subjects were found to be of deutan type, comprising 8 strong and 26 mild cases. No protan individual was detected in the present survey. Of the 27 endogamous groups tested, 16 groups showed absence of the trait while the incidence in remaining groups of the castes, backward castes and schedule castes were in rather similar and broad ranges between 0 to 6.7%, 0 to 6.3% and 0 to 4.7% respectively. Besides, in each of these 3 caste groupings, 1 total color blind subject was found. Compared to some initial studies on color blindness available from Punjab(average 5.2%),the present and some other recent surveys provide comparatively lower estimates of all trait (average 3.22%) which is found to be very close to that of U.P.(3.28%) and Delhi (3.15%) suggesting similarities in this genetic trait among populations of these states of the region. While in 249 populations on the North-Western Indian region so far tested the average incidence of color blindness was calculated to be 3.98%.To fully appreciate the true variation of this genetic trait and also to complete the genetic map of people of people of Punjab, further studies, are required. © Internet Scientific Publications, LLC, 2010.

Azadirachtin-A (Aza-A), a tetranortriterpenoid, found in minuscule amounts in the Neem seed-kernels, has proved to be a potent biopesticide. Given the vast biodiversity of Azadirachta indica (Neem) in India, this study is an overview of four main aspects that corroborate with each other in identifying elite Neem chemotypes based on their Aza-A content. These biomarkers included mycofloral, tissue-cultural, ecomorphometrical and molecular analyses on accessions from five ecogeographically different regions in Andhra Pradesh, India, which high-lighted the characteristics of trees that yielded the highest Aza-A. In essence, extremely-arid-alkaline regions with maximum soil pH (8.05) yielded trees with the highest amount of this biopesticide. Likewise, both VAM and soil fungal diversity and frequency exhibited maximal values in their rhizosphere, whereas it exhibited the least values for percentage moisture and also for several micronutrients measured (P2O5, Zn, Fe and Cu). In vitro studies on seeds with high versus low Aza-A content gave sturdier seedlings in the former; with profusely coiled roots and fibirillar foliage in tissue-culture; in addition to these seeds being more viable. Furthermore, their cotyledons alone exhibited significant amount of Aza-A, as measured by HPLC. Besides this significant difference, the impact of growth factors culminated not only in the variations of several secondary metabolites, but also differences in DNA patterns from various parts of a single in vitro plant. Ecomorphometric analyses clearly indicated that at least eight parameters (seed diameter, soil pH, percentage moisture, K2O, P2O5, Zn, lower lobe serrations and upper-lobe-distance of leaves) were significantly related to the quantitative variations in Aza-A. Finally, PCR analyses exhibited a habitat-based molecular concordance of ISSR and FISSR profiles with Aza-A content among the Neem chemotypes. Their relatedness was based on dendrograms constructed by UPGMA algorithms using similarity-index-values. © 2011 Prof. H.S. Srivastava Foundation for Science and Society.

Aruna J.,Annamalai University | Aruna J.,Garden City College | Prakash M.,Annamalai University | Kumar B.S.,Annamalai University
Indian Journal of Agricultural Sciences | Year: 2013

Gamma rays, Ethyl Methane Sulphonate (EMS), diethyl sulphate (DES) were employed and M1, M2 and M3 generations were studied for the characters, viz. days to 50% flowering, plant height, number of branches, fruits per plant, fruit length, fruit girth, fruit weight and fruit yield per plant. A significant reduction in seed germination, shoot length and RL were observed with increase in concentration of mutagens. Among the mutagens gamma rays were found to bring more reduction for all the major traits studied. The mean performance showed significant increase in the number of branches, fruits per plant, fruit length and fruit yield per plant in M2 and M3 generations. Whereas, days to 50 per cent flowering and plant height showed a slight deviation from the control in the treated populations.

Vinothina V.,Garden City College | Sridaran R.,Marwadi Education Foundations Group Of Institutions
International Journal of Applied Engineering Research | Year: 2014

Cloud computing has become an integral solution for providing a flexible, on-demand computing infrastructure for many categories of applications. The deadlineconstrained workflow application deserves a special mention. In the case of clouds, being one of the sensitive issues, resource allocation becomes much more complicated. This is because of the inherent possibility of multiple users trying to gain access to cloud resources at the same time. Hence efficient resources allocation is a daunting task for the service provider. This paper proposes two algorithms namely MCPFC and HADC, which aim at enhancing the efficiency of the process of resource allocation with minor variations in their approaches. The results of proposed algorithms on real world scientific applications have shown significant improvements in terms of resource utilization. © Research India Publications.

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