النشر العلمي

  • Wireless Radiation Detectors for Environmental Monitoring

published in Journal of IJIRCCE. 2015

  • Current status of sweet orange (Citrus sinensis L.) orchards in the River Nile State, Sudan

                                                                                                       ABSTRACT

 

    Production of sweet oranges in the Sudan does not cover domestic needs and sweet oranges are currently imported from Egypt, Iran and South Africa to satisfy the increasing demand. Hence, there is a need to investigate factors involved in the decline of sweet orange trees in one of the most important States for orange production in the Sudan. This research aims to study and evaluate different agronomic practices contributing to the prevailing sweet orange performance in the River Nile State, Sudan. A questionnaire and interviews with 120 sweet orange growers from Ketiab, Zeidab and Gandato citrus projects indicated that 75.8% of the farmers have orchards less than 2.9 ha. Low yielding cultivars such as “Sinnari”, the local selection (Baladi), Hamlin and Nori 16 dominate in the areas, 96.7% of the trees were budded on sour orange rootstocks, 85.8% of the seedlings were budded in private nurseries using bud wood collected from non-certified mother trees from private orchards. All sweet oranges were grown with other fruit species in 100% of the orchards, 80.8% used flat surface irrigation. There is no fixed fertilizer program. The type and quantity of chemical and organic fertilizers varied with different growers. No foliar fertilizers were used and nutrient deficiencies of Zn, Fe and Mn were observed in most orchards. Extension services for citrus production are highly needed for improvement of yield and quality of sweet oranges in the River Nile State.

published in مجلة الجزيرة للعلوم الزراعية

  • Effects of nitrogen source, rate and foliar application on some leaf mineral nutrient contents and yield of “Sinnari” sweet oranges (Citrus sinensis L.) in the River Nile State, Sudan

ABSTRACT

Sweet orange production in the Sudan is characterized by low yield and poor fruit quality. This research was aimed at determining the effects of nitrogen source, rate and foliar application on some leaf mineral nutrient content and yield of “Sinnari” sweet oranges in  the River Nile State during 2010/11 and 2011/12. Nitrogen sources were urea (100%), sheep manure (SM) (100%), or a combination of them (50% each), beside Wuxal foliar fertilizer. Nitrogen rates were 0, 43 and 86 kg N/ha. Treatments were arranged in a randomized complete block design with three replicates and 2 trees/plot. Results showed that nitrogen sources and rates were effective in increasing leaf nitrogen content and the highest values were obtained by the application of 86 kg N/ha using urea (100%) or a combination of urea and sheep manure. Application of Wuxal foliar fertilizer resulted in a significant increase of Zn and Fe leaf contents and total yield. Nitrogen source had significant effects on yield components and total yield. The highest values were obtained by a combination of urea and sheep manure or 100% urea, and the lowest values were recorded for 100% sheep manure. Nitrogen rate of 86 kg N/ha resulted in the highest yield components and total yield. It is recommended to fertilize sweet orange trees in the River Nile State with a combination of urea and sheep manure at the rate of 86 kg N/ha (12.4 kg SM/tree and 0.5 kg urea/tree) in addition to Wuxal foliar fertilizer.

published in مجلة الجزيرة للعلوم الزراعية

  • Postoperative Pain in Multiple-visit and Single-visit Root Canal Treatment

Introduction: The purpose of the present study was to evaluate postoperative pain after root canal treatment

at the Department of Conservative Dentistry, Faculty of Dentistry, University of Khartoum, Sudan. Methods:

Two hundred thirty-four patients were included in this study; age range was 18–62 years. Conventional endodontic treatment was carried out in the included teeth by the undergraduate dental students in a single visit or multiple visits. The chemomechanical preparation of root canals was done by a modified double-flared technique with combination of hand instruments. Postoperative pain was recorded by each patient by using visual analogue scale in well-defined categories at 2 time intervals, 12 hours and 24 hours. Results: Data were analyzed with the c2 test. The overall incidence of postoperative pain was 9.0% after 12 hours and 24 hours. Postoperative pain developed in 15.9% of the patients with history of preoperative pain, whereas 7.1% had postoperative pain among those without history of preoperative pain. There was no significant difference in postoperative pain between single-visit and multiple-visit root canal treatment (RCT). Conclusions: Within the limitations of the present study there was a low incidence of postoperative pain after conventional RCT. No significant difference exists in postoperative pain after single-visit or multiple-visit RCT. (J Endod 2010;36:36–39)

published in Journal of Endodontics – Volume 36, Number 1

  • تأثير الجنس على أنشطة التنمية المهنية بين أعضاء هيئة التدريس في كليات القطاع الصحي في جامعة الجزيرة، السودان

Professional development sustains staff competence through continuing improvement of knowledge, skills and performance. Notable improvements in education almost never take place in the absence of continuing professional development (CPD).The aim of this study was to assess the impact of gender on professional development activities among the academic staff of health sector faculties at Elrazi campus in University of Gezira. It was a descriptive exploratory, cross-sectional, study including all the academic staff of health sector faculties at Elrazi campus in University of Gezira. Questionnaire was designed to include, personal data, interest and motivation for CPD. Questions about different activities of CPD were included, e.g. number of courses or workshop being attended, research conduction over the past four years, reading of scientific journals and publishing of scientific papers and facilitation of these activities. It was found that, almost all teachers (96%) were interested in CPD.  Over half (53%) of the academic staff attended more than 6 courses or workshops about CPD. Only 45% of the staff read scientific journals regularly. There were significant differences in reading scientific journals regularly and publishing scientific papers between males and females, with P-value of 0.005, and 0.00 respectively . CPD can succeed only in settings, or contexts, that support it. Commitment and support from administrators is vital for success of CPD activities

published in IJSR-International Journal of Scientific Reseach,volume-5-Issue:5, May 2016, 106-108,ISSN, No.2277-8179.

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