Nyala, Sudan

University of Nyala

Nyala, Sudan

Nyala University is a public university located in Nyala in South Darfur, Sudan.Nyala University is a member of the Federation of the Universities of the Islamic World.It is also a member of the Association of African Universities.In 2005 there was a dispute between the administration and the students over their exams results, as a result of which the administration decided to close the university. On 25 August 2005 fifteen of the protesting students were arrested by security forces, and some were flogged. Wikipedia.

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Hamza A.E.,University of Nyala | Wang X.L.,Yangzhou University | Yang Z.P.,Yangzhou University
Pakistan Veterinary Journal | Year: 2010

Kappa casein gene polymorphism has received a considerable attention because of its correlation with milk quality, composition and technological properties. The polymorphism of kappa casein gene (K-CN) was detected in Holstein Chinese cattle. A 218 bp sequence in exon IV of 319 Holstein Chinese cattle blood samples were amplified using polymerase chain reaction-single strand conformation (PCRSSCP) technique. Sequence analysis revealed one single nucleotide polymorphism (SNP) T/C SNP in exon 1V at nucleotides (80), moreover; three genotypes TT, TC and CC were also identified with following frequencies: 0.40, 0.34 and 0.26%, respectively. The allele frequency for T and C found to be 0.6 and 0.4 %, respectively. Allele frequencies in the population fitted with Hardy-Weinberg equilibrium (P>0.05). Analysis of genetic polymorphism of k-casein at exon 1V exhibited medium polymorphism information content (PIC=0.36). © 2010 PVJ. All rights reserved.

Adam S.A.A.,Yangzhou University | Adam S.A.A.,University of Nyala | Zhou J.-P.,Yangzhou University | Zhang Y.-H.,Yangzhou University
2017 3rd International Conference on Control, Automation and Robotics, ICCAR 2017 | Year: 2017

In this era, Simulation has been recognized as an important research and a powerful tool supporting the design, planning, analysis and decisions in different areas of research and development because of the lowering computers' costs. Matlab and CATIA software, were used to construct the robot manipulator parametric to model and simulate in 3D space, to determine the end effector position on the trajectory path with use of forward and inverse kinematics and dynamics equations generating of feasible trajectories for successful cooperative manipulation. Several trajectory paths were tested verifying the method for robots behavior and control laws. Different kinematic parameters including joints' angles and positions were determined in CATIA software and compared with MATLAB results, Trajectory path for avoiding obstacles by CATIA software is established and verified with Matlab; then joint's torque quantities were calculated and compared between two manipulator postures. The simulation results verified the conditions for 5R manipulator and trajectory. The comparison of obtained results for end effector moving by the two software were identical. These results are obviously helpful for any serial robot manipulator simulation and modeling of the end effector. © 2017 IEEE.

Jomma E.Y.,Nanjing Southeast University | Jomma E.Y.,University of Nyala | Bao N.,Nantong University | Ding S.-N.,Nanjing Southeast University
Analytical Methods | Year: 2017

A simple approach for fabricating an inexpensive, disposable pencil drawn microelectrode on paper for a two-electrode electrochemical system is developed. The morphology of the fabricated microelectrode was evaluated by optical microscopy and scanning electron microscopy. The electrochemical behaviors of the pencil drawn microelectrode have been investigated by cyclic voltammetry using ferrocyanide/ferricyanide as redox probes. Moreover, Prussian blue was successfully electrochemically deposited onto the pencil drawn microelectrode to detect hydrogen peroxide with a low detection limit of 0.05 μM and a wide linear range from 1.0 μM to 1300 μM (R = 0.997). This cheap and effective microelectrode fabrication method may offer a wide channel for developing lab-on-paper applications through an appropriate combination of graphite pencil traces and paper properties. © The Royal Society of Chemistry 2017.

Abuelnuor A.A.A.,Sudan University of Science and Technology | Saqr K.M.,Arab Academy for Science and Technology | Mohieldein S.A.A.,Kassala University | Dafallah K.A.,Garri Power Station | And 2 more authors.
Renewable and Sustainable Energy Reviews | Year: 2017

Recently, one of the major and serious worldly concerns is the limitation of energy resources. Sudan, in specific, confronts a critical crises relating to fossil fuel resources, and mostly concerning the production of electricity energy from fired thermal power plants. One of these Garri “2” combined cycle power plants produce about 180 MW. In the light of the second law of thermodynamics, exergy analysis is considered a powerful and effective tool to investigate the optimization of engineering devices. In order to evaluate exergetic efficiency and exergy destruction of each part, exergy analysis has been carried out for Garri “2;” while in order to achieve it, exergy balance and entropy generation were analyzed. Conclusively, the results proved that combustion chambers are the main sources of exergy destruction due to their high irreversibility. These results in detail illustrate the following percentages: 63% from the total exergy destruction, followed by 13.6% of gas turbines, 6.4% steam turbines, 6.3% heat recovery steam generators (HRSGs), 4.7% stacks (exhaust gases), 3.8% compressors and 2.3% cooling systems. Moreover, the results affirmed that thermal and exergetic efficiencies for the entire plant are (38%, 49%) respectively. © 2017 Elsevier Ltd

Eltahir Y.M.,University of Nyala
Environmental Monitoring and Assessment | Year: 2011

The objective of this study was to determine the bacterial contaminations in drinking water in Nyala city, South Darfur, Sudan with special reference to the internally displaced people camps (IDPs). Two hundred and forty water samples from different sites and sources including bore holes, hand pumps, dug wells, water points, water reservoir and household storage containers were collected in 2009. The most probable number method was used to detect and count the total coliform, faecal coliform and faecal enterococci. Results revealed that the three indicators bacteria were abundant in all sources except water points. Percentages of the three indicators bacteria count above the permissible limits for drinking water in all samples were 46.4% total coliform, 45.2% faecal coliform and 25.4% faecal enterococci whereas the highest count of the indicators bacteria observed was 1,600 U/100 ml water. Enteric bacteria isolated were Escherichia coli (22.5%), Enterococcus faecalis (20.42%), Klebsiella (15.00%), Citrobacter (2.1%) and Enterobacter (3.33%). The highest contamination of water sources was observed in household storage containers (20%) followed by boreholes (11.25%), reservoirs (6.24%), hand pumps (5.42%) and dug wells (2.49%). Contamination varied from season to season with the highest level in autumn (18.33%) followed by winter (13.75%) and summer (13.32%), respectively. All sources of water in IDP camps except water points were contaminated. Data suggested the importance of greater attention for household contamination, environmental sanitation control and the raise of awareness about water contamination. © 2010 Springer Science+Business Media B.V.

El Nour M.E.M.,Sudan University of Science and Technology | Yagoub S.O.,University of Nyala
Journal of Applied Sciences | Year: 2010

The research aimed to study the diastatic power (PD) of sorghum malt, to purify the α and β-amylase s and to characterize these enzymes. In this study the amylolytic activity initiated during the germination of sorghum was determined. Fourth day of germination of sorghum grains showed the highest of the amount of Diastatic Power (DP) (62.0 IOB), no significant variation (p<0.05) between the extraction procedures followed either by distilled water or water with 2% peptone. DEAE-cellulose chromatography was used for the partial purification of α-and β-amylases. The results obtained from the last purification steps is 6.94 fold of α-amylase in fifth day of germination, whereas β-amylase is 35.42 fold in fourth day of germination. These amylases isolated from sorghum malt have interesting characteristics such as, storage stability of purified α and β-amylases at different temperature (-20 and 4°C) for 56 days. No significant loss (p<0.05) in the enzymes activity during the storage period for 56 days in-20°C, whereas the loss of enzyme activity at 4°C during the period of 56 days were 19% for a and 34% for β-amylases. The maximum activity of α-amylase was obtained at temperature 70 and 50°C for β-amylase, it was clear that the α-amylase is more stable than β-amylase. The optimum pH for both α and β-amylases were 5.0 and 5.5, respectively. Therefore, these characterizations meet the prerequisites need for food industry. © 2010 Asian Network for Scientific Information.

Pauciullo A.,Justus Liebig University | Shuiep E.S.,University of Nyala | Cosenza G.,University of Naples Federico II | Ramunno L.,University of Naples Federico II | Erhardt G.,Justus Liebig University
Gene | Year: 2013

κ-casein is a glycosilated protein belonging to a family of phosphoproteins (αs1, β, αs2, κ) that represent the major protein component in mammalian milk. κ-casein plays an essential role in the casein micelle stabilization, determining the size and the specific function. In the present paper, we report for the first time the characterization of the nucleotide sequence of the whole κ-casein-encoding gene (CSN3) plus 1045 nucleotides at the 5' flanking region in Camelus dromedarius. The promoter region and the complete cDNA were also provided for the first time in Camelus bactrianus. The gene is spread over 9.3. kb and consists of 5 exons varying in length from 33. bp (exon 3) to 494. bp (exon 4), and 4 introns from 1200. bp (intron 3) to 2928. bp (intron 2). Highly conserved sequences, located in the 5' flanking region, have been found. The regulatory regions of camels seems to be more related to equids than to other compared species. 17 polymorphic sites have been detected, one of these (g.1029T>C) is responsible for the creation of a new putative consensus sequence for the transcription factor HNF-1. In general, these SNPs are the first reported in camels for casein loci. Finally, seven interspersed repeated elements were also identified at intronic level. © 2012 Elsevier B.V.

Ishag H.Z.A.,Nanjing Agricultural University | Ishag H.Z.A.,University of Nyala | Li C.,Nanjing Agricultural University | Huang L.,Nanjing Agricultural University | And 4 more authors.
Virus Research | Year: 2013

Pokeweed antiviral protein (PAP) is a plant-derived N-glycosidase ribosomal-inactivating protein isolated from Phytolacca americana. The antiviral activity of PAP has been described in several viruses. This study was to investigate the antiviral activity of PAP against Japanese encephalitis virus (JEV) infection in vitro and in vivo. Antiviral activity of PAP against JEV infection was evaluated in vitro using plaque forming assay, qRT-PCR and Western blot analysis. In vitro results showed that PAP inhibited replication of JEV in a dose-dependent manner with 50% inhibitory concentration (IC50) of 300ng/ml (23.1nM). Depurination assay suggested that the antiviral activity of PAP against JEV infection might be partially due to depurination of JEV genomic RNA. In vivo studies showed that PAP (1.0mg/kg) administered intraperitoneally decreased infection in mice challenged with a lethal dose of JEV, presenting a survival of 87.5% or 85.7% when administered pre-infection or post-infection. Collectively, our studies demonstrated that PAP possesses antiviral activity against JEV infection in vitro and in vivo, providing evidences for further development of PAP as an antiviral agent against JEV infection. © 2012 Elsevier B.V.

Norain T.M.,University of Nyala | Ismail I.B.,King Faisal University | Abdoun K.A.,King Saud University | Al-Haidary A.A.,King Saud University
Italian Journal of Animal Science | Year: 2013

This study was conducted to investigate the effects of dietary supplementation with chromium chloride, CrCl3.6H2O (2mg kg-1 basal diet) on the performance and immune response of broiler chickens under heat stress condition (25-43°C). A total of 80 one-day-old broiler chicks (Ross-308) were assigned to two treatment groups according to a completely randomized design. Each treatment consisted of four equal replicates, each contained ten chicks. Chicks were fed on basal diets supplemented with different concentrations of chromium (0 and 2 mg kg-1 CrCl3) from 1 to 35 days of age. Chromium supplementation as feed additives resulted in a slightly lower rectal temperature, and significantly (P<0.05) lower respiration rate for the broiler chickens received diet supplemented with chromium compared to the control (0 mg kg-1 CrCl3). Dietary chromium supplementation increased final body weight (BW) at the end of the production period (5 weeks). Average weight gain was significantly (P<0.05) higher in chickens fed on chromium supplemented diet. Feed intake was not influenced by dietary chromium supplementation, however, the efficiency of feed conversion was improved (P<0.05) in chromium supplemented chickens. Furthermore, dressing percentage was significantly (P<0.05) higher in Cr-treated chickens compared to control chickens. Chromium supplementation significantly (P<0.05) improved the immune response to Newcastle Disease Virus vaccine (NDV). The present results suggest that dietary chromium supplementation provides a good nutritional management approach to ameliorate heat stress induced depression in production performance and immune response of broiler chickens. © T.M. Norain et al., 2013.

Shuiep E.S.,University of Nyala | El Zubeir I.E.M.,University of Khartoum | Yousif I.A.,University of Khartoum
Livestock Research for Rural Development | Year: 2014

In this study, a questionnaire was designed to investigate some socioeconomic aspects of rearing camels under semi intensive and traditional nomadic production systems in Sudan.The illiterate camel herders were 24% and 88%, and their averages ages were 51.4±9.8 and 30.2±7.2 years, in the semi intensive and the nomadic production system, respectively. Caring of quality of herds in term of productivity rather than herd size is the major characteristic of the semi intensive system which is practiced by more educated herders. They are fully adopting regular two times milking per day coupled with selling camel milk, the return of which has positively contributed to their well being. However, caring of quantity (herd size) which is very important socially coupled with irregular milking associated with the conserved attitude against selling milk are the most important characteristics of the nomadic system. Although the concept is traditionally unaccepted among camel herders in Sudan, interviewed nomadic families showed however, more flexibility concerning selling camel milk. Actually, 48% of the nomadic interviewees are selling fermented milk. Nevertheless, selling small ruminants and/or young male camels is still the major sources of income for nomadic herders. The salaries of hired laborers in addition to the cost of feeding explain the high cost of rearing camels in the semi intensive system. However, participation of household in husbandry practices in addition to the free utilization of natural pastures reduced the cost of raising camels to the minimum in the nomadic system. © 2014, Fundacion CIPAV. All rights reserved.

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