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Search Results: 1 - 10 of 473837 matches for " Sarah A. Ahmed "
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Survey of Brucellosis among Sheep, Goats, Camels and Cattle in Kassala Area, Eastern Sudan
Mokhtar M. Omer,Abdelhamid A. Abdelaziz,Sarah M.A. Abusalab,Abbas M. Ahmed
Journal of Animal and Veterinary Advances , 2012,
Abstract: This study is conducted to estimate the prevalence of brucellosis in different animals species in Kassala area, eastern Sudan during 2004 up to 2006. The study aimed to provide a documented information on the prevalence of the disease with a view to assisting veterinary authorities in diseases control policies and planning research priorities in the region. The serum samples were collected from sheep, goat, camels and cattle, then tested in by Rose Bengal Plate test. The study showed that the prevalence of brucellosis is increased during the last years among different animal species.
Prevalence of Iron Deficiency and Iron Deficiency Anemia in Infants and Children and Treatment with Microencapsulated Iron II Fumarate and Supplied Ascorbic Acid as “Sprinkles”  [PDF]
Abdullah Al-Mamari, Mohammad A. Al-Hegami, Sadeq Al-Hag, Mahmoud Al-Buryhi, Safa Al-Amawi, Leena Ahmed, Lila Al-Awadi, Sarah Al-Jamal, Wafa Mohammad, Yasmin Mohammad
Pharmacology & Pharmacy (PP) , 2014, DOI: 10.4236/pp.2014.57081

Background: Iron deficiency anemia (IDA) in children and infants is a common nutritional problem all over the world. Infants and young children have a high risk for developing iron deficiency (ID) because they have high demand for iron during the period of rapid growth. This is aggravated by the insufficiency of iron in their diet. Iron supplementation programs using pediatric tablets or drops have not been successful in the control of anemia amongst infants and children in some countries. “Sprinkles” is an innovative multi-micronutrient home fortification strategy to control iron deficiency and anemia to be more useful. Objective: The objective was to estimate the prevalence ID and IDA in infants and children in Ibb City, Yemen Republic; evaluate the use of a new form of iron and determine the hematologic response to different doses and forms of iron in Sprinkles and iron drops. Design: Using a prospective, randomized, controlled design, we studied 337 randomly children aged 24 - 48 months and infants aged 6 - 24 months in Ibb City (hemoglobin: 70 - 99 g/L). One group received a daily sachet of microencapsulated ferrous fumarate (80 mg elemental Fe) in powder form plus ascorbic acid to be sprinkled onto any complementary food eaten (sprinkles group); a control group received ferrous sulfate drops 3 times/d for 2 months (total dose: 40 mg elemental Fe). Hemoglobin and serum ferritin concentrations were measured at baseline and at the end of treatment. Results: Successful treatment of anemia (hemoglobin > 100 g/L) occurred in 58% of the sprinkles group and in 56% of the drops group, with minimal side effects in both groups. Geometric mean ferritin concentrations increased significantly in each group from baseline to the end of treatment (P < 0.001). Conclusion: Use of ferrous sulfate drops or a single daily dose of microencapsulated

Rapid Identification of Black Grain Eumycetoma Causative Agents Using Rolling Circle Amplification
Sarah A. Ahmed ,Bert H. G. Gerrits van den Ende,Ahmed H. Fahal,Wendy W. J. van de Sande,G. S. de Hoog
PLOS Neglected Tropical Diseases , 2014, DOI: 10.1371/journal.pntd.0003368
Abstract: Accurate identification of mycetoma causative agent is a priority for treatment. However, current identification tools are far from being satisfactory for both reliable diagnosis and epidemiological investigations. A rapid, simple, and highly efficient molecular based method for identification of agents of black grain eumycetoma is introduced, aiming to improve diagnostic in endemic areas. Rolling Circle Amplification (RCA) uses species-specific padlock probes and isothermal DNA amplification. The tests were based on ITS sequences and developed for Falciformispora senegalensis, F. tompkinsii, Madurella fahalii, M. mycetomatis, M. pseudomycetomatis, M. tropicana, Medicopsis romeroi, and Trematosphaeria grisea. With the isothermal RCA assay, 62 isolates were successfully identified with 100% specificity and no cross reactivity or false results. The main advantage of this technique is the low-cost, high specificity, and simplicity. In addition, it is highly reproducible and can be performed within a single day.
The Finite Element Approximation in Hyperbolic Equation and Its Application—The Pollution of the Water in the West of Algeria as an Example  [PDF]
Salah Boulaaras, Khaled Mahdi, Hamza Abderrahim, Ahmed Hamou, Sarah Kabli
Applied Mathematics (AM) , 2013, DOI: 10.4236/am.2013.43068
Abstract: Hyperbolic variational equations are discussed and their existence and uniqueness of weak solution is established over in the last six decades. In this paper the hyperbolic equations (strong formula) can be transformed into a Hyperbolic variational equations. In this research, we propose a time-space discretization to show the existence and uniqueness of the discrete solution and how we apply it in the transport problem. The proposed approach stands on a discrete L-stability property with respect to the right-hand side and the boundary conditions of our problem which has been proposed. Furthermore the numerical example is given for the pollution in the smooth fluid as water and we have taken the pollution of the water in the west of Algeria as an example.
Proximal Femoral Cortical Thickness and Medullary Canal Diameter in Soft and Hard Water Regions  [PDF]
Ahmed Elmorsy, Sarah Whitehouse, John Timperley, Stephen Veitch
Open Journal of Orthopedics (OJO) , 2016, DOI: 10.4236/ojo.2016.63009
Abstract: This study compared proximal femoral morphology in patients living in soft and hard water regions. The proximal femoral morphology of two groups of 70 patients living in hard and soft water regions with a mean age of 72.29 (range: 50 to 87 years) was measured using an antero-posterior radiograph of the non-operated hip with magnification adjusted. The medullary canal diameter at the level of the lesser trochanter (LT) was significantly wider in patients living in the hard water region (mean width: 1.9 mm wider; p = 0.003). No statistical significant difference was found in the medullary canal width at 10 cm below the level of LT, Dorr index, or Canal Bone Ratio (CBR). In conclusion, the proximal femoral morphology does differ in patients living in soft and hard water areas. These results may have an important clinical bearing in patients undergoing total hip replacement surgery. Further research is needed to determine whether implant survivorship is affected in patients living in hard and soft water regions.
Clinical Outcome of Early Enteral Feeding on Patients Post Esophagectomy  [PDF]
Badawy M. Ahmed, Ahmed A. S. Salem
Journal of Cancer Therapy (JCT) , 2017, DOI: 10.4236/jct.2017.84029
Abstract: Objectives: Aim of our work is to study the effect of early enteral feeding through either nasoentral or feeding jejunostomy tube post esophagectomy on patients recovery and hospital stay. Background: Postoperative nutrition is a well known aspect of care in recent years and has been shown to decrease the incidence of complications and hospital stay. Enteral nutrition has been shown to be superior to parenteral nutrition as it is more physiological, safer, cheaper and early enteral nutrition has been clearly confirmed to reduce postoperative morbidity. Methods: This is randomized combined retrospective and prospective study that is conducted in surgical oncology department, South Egypt cancer institute, Assiut University; from October 2012 to October 2016. Patients in this study were divided into two groups: group 1 includes patients with feeding jejunostomy and group 2 is patients with nasoenteral tube. Results: 25 Patients included in this study (19 males & 6 females). All cases were primarily diagnosed as esophageal cancer, middle and lower 1/3 esophagus or proximal gastric carcinoma infiltrating cardia by clinical data associated with abdominal sonar and/or C.T scan and upper endoscopy with biopsy. There was no significant difference in catheter related complications (P value 0.238). There was no operative mortality. Conclusion: Early postoperative enteral nutrition was feasible and safe for patients undergoing esophagectomy. There is no significant difference between NE and FJ. Enteral nutrition either through nasoenteral or feeding jejunostomy is an effective method for postoperative nutritional support in this type of major surgery.
Protracted Adjuvant Temozolomide in Glioblastoma Multiforme  [PDF]
Ahmed A. Refae, Ahmed Ezzat, Dina Ahmed Salem, Mervat Mahrous
Journal of Cancer Therapy (JCT) , 2015, DOI: 10.4236/jct.2015.68082
Abstract: Purpose: Radiotherapy with concurrent temozolomide (TMZ), followed by 6 cycles of adjuvant TMZ, is the standard of care for newly diagnosed Glioblastoma Mulltiforme (GBM). However tumor progression is the role with median survival of almost 14 months. With lack of effective second line chemotherapy, many physicians and some guidelines advocate prolonged use of adjuvant TMZ more than 6 months. We conduct this study to test the efficacy of protracted adjuvant conventional dose TMZ over the standard 6 doses of adjuvant TMZ. Material and Methods: This phase II trial enrolled patients newly diagnosed as GBM, older than age 18 years, with a Karnofsky performance score (KPS) of ≥60, Neurological Performance Scale (NPS) of ≤3. Patients were randomly assigned to the standard concurrent chemoradiotherapy (CCRT) followed by 6 cycles of adjuvant TMZ or the same treatment with more than 6 cycles of adjuvant chemotherapy extended as long as the patient in good performance, with no unacceptable toxicity, no signs of disease progression. The primary end point was OS. Results: A total of 59 patients were recruited in the study and were randomized in two arms. 29 patients joined arm 1 aiming at receiving CCRT followed by adjuvant 6 cycles TMZ (6 cycles arm) and 30 joined arm 2 aiming at receiving the same treatment with more than 6 cycles of TMZ (>6 cycles). 16 patients managed to complete the adjuvant 6 cycles in arm 1. 19 patients in arm 2, completed the 6 cycles with additive more doses with a median of 11 cycles (range: 8 - 23 cycles). Median PFS was 12.1 months for (6 cycles) arm, and 18.8 months for (>6 cycles) arm, HR 0.88 (95% CI: 1.185 - 4.901) (P 0.015); the overall survival for (6 cycles) arm was 18.1 months, versus 24.1 months, HR 0.70 (95% CI: 1.007 - 4.037) (P 0.048). No significant added toxicity was notice and the 4 weekly TMZ was well tolerated. Conclusion: This study concluded that protracted adjuvant TMZ after concurrent chemoradiotherapy could be a feasible strategy for GBM. This strategy warrants a large phase III randomized trial.
An Overview of Conventional and Non-Conventional Water Resources in Arid Region: Assessment and Constrains of the United Arab Emirates (UAE)  [PDF]
Ahmed A. Murad
Journal of Water Resource and Protection (JWARP) , 2010, DOI: 10.4236/jwarp.2010.22020
Abstract: The aridity, population growth, agriculture and industrial activities threaten the water resources in the United Arab Emirates (UAE). In UAE, groundwater quantity is reduced and its quality is also deteriorated due to the scanty of rainfall and over pumping for different uses. The deficit of groundwater is met by desalinated water and reused of treated wastewater. Agricultural activities have negative impacts on water resources and this causes reduction of groundwater quality as the agriculture the main land use in the UAE and it accounts for more than 70% of groundwater use. The treated wastewater is an alternative source for agricultural activities. To improve the current water situation, a national water resources strategy has been prepared and imple-mented to assist in achieve this target and maintain the country’s water security. This paper intends to give an overview of water resources in the UAE with emphasis on challenges facing the management of these resources.
New Technique of Clipless Laparoscopic Cholecystectomy  [PDF]
Ahmed A. ElGeidie
Surgical Science (SS) , 2012, DOI: 10.4236/ss.2012.36061
Abstract: Background: In laparoscopic cholecystectomy (LC), application of clips is the standard method for controlling the cystic duct and artery. However, this is not without problems. We propose a modified technique for management of cystic duct and artery in LC. Methods: Since 2007, 328 patients presented with symptomatic gallstones were included. In those patients, the cystic artery was divided by monopolar cautery and the cystic duct was ligated intracorporeally using nonabsorbable suture. Results: Three patients (0.9%) have bleeding from cauterized cystic artery; bleeding was controlled by diathermy in two of them and application of metal clip was necessary in the remaining patient. Cystic duct leak was detected in only one patient (0.3%), and it was managed by percutaneous drainage. At follow up we did not encounter abnormalities suggestive of bile duct stricture. Conclusion: The proposed modification of LC is feasible, practical, safe and economic as well. It is associated with reduced risk of postoperative morbidity.
Performance Enhancement of SOVA Based Decoder in SCCC and PCCC Schemes  [PDF]
Ahmed A. Hamad
Wireless Engineering and Technology (WET) , 2013, DOI: 10.4236/wet.2013.41006

This study proposes a simple scaling factor approach to improve the performance of parallel-concatenated convolutional code (PCCC) and serial concatenated convolutional code (SCCC) systems based on suboptimal soft-input soft-output (SISO) decoders. Fixed and adaptive scaling factors were estimated to mitigate both the optimistic nature of a posteriori information and the correlation between intrinsic and extrinsic information produced by soft-output Viterbi (SOVA) decoders. The scaling factors could be computed off-line to reduce processing time and implementation complexity. The simulation results show a significant improvement in terms of bit-error rate (BER) over additive white Gaussian noise and Rayleigh fading channel. The convergence properties of the suggested iterative scheme are assessed using the extrinsic information transfer (EXIT) chart analysis technique.


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