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Search Results: 1 - 10 of 19874 matches for " Ali Dirie Osman "
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Prevalence of Rifampicin Resistance and Associated Risk Factors among Suspected Multidrug Resistant Tuberculosis Cases in TB Centers Mogadishu-Somalia: Descriptive Study  [PDF]
Ahmed Y. Guled, Ayub Hassan Elmi, Bashir Mohamud Abdi, Abdihamid Mohamed Ali Rage, Fartun Mohamed Ali, Abdullahi Hassan Abdinur, Abdullahi Abdulle Ali, Anab Adam Ahmed, Khadra Abdullahi Ibrahim, Salah Osman Mohamed, Fos Ali Mire, Omar Abdi Adem, Ali Dirie Osman
Open Journal of Respiratory Diseases (OJRD) , 2016, DOI: 10.4236/ojrd.2016.62003
Abstract: Introduction and Background: Multidrug-resistant tuberculosis (MDR-TB) has emerged as a significant global health concern. Patients who had failed previous TB treatment, relapsed after treatment, contacted known MDRTB patients or defaulted during previous treatment, and HIV patients are considered to be suspected and at high risk for developing drug resistant TB specially MDR-TB. However, there is little data available on the prevalence and trends of MDR tuberculosis in national level but luck of it in Mogadishu is our main concern. Methodology: This was a crosssectional, descriptive study involving all suspected MDR TB patients attended at the Mogadishu three Tb centers. Results: A total of 138 cases of suspected MDRTB patients were included in the study. Of these, 70 patients (51%) had rifampicin resistant-TB. Of the 138 study participants, 94 (68.62%) were between 21 - 40 years old that indicates the dominance of productive age group (21 - 40 years). Previous Tuberculosis treatment has been noted to be a major risk factor for development of multidrug resistance tuberculosis. MDR-TB prevalence is significantly higher in male than female patients. Conclusion and Interpretation: The prevalence of Rifampicin resistance among these high risk groups was significant. The high association of previous TB treatment to MDR-TB might be explained due to inappropriate anti-tubercular regimens, sub-optimal drugs, inadequate or irregular drug supply, unsatisfactory patient or clinician compliance, lack of supervision of treatment and absence of infection control measures in healthcare facilities. As the prevalence of MDRTB is high and yet the cases remain un-isolated in the community we recommend the MOH/NTP and funding agencies to facilitate establishment of MDRTB management centers earlier in Mogadishu in order to treat the MDRTB case otherwise it might Amplify of the incidence of this Emerging Disease.
In Search of Green Pastures
Ali Osman
Nordic Journal of Migration Research , 2012, DOI: 10.2478/v10202-011-0035-8
Abstract: The focus of this paper is on how transnational relations of Somali-Swedes shapes their onward immigration to the United Kingdom and intervenes in their educational and labour market career. The data for the study was collected using ethnographic interview methods in multiple locations: Stockholm, London and Birmingham and analysed using the concept of imagination as a social practice. The results of this study show that onward immigration of Somali-Swedes has multiple agendas, and more importantly it is contingent on the political, cultural and economic structure of opportunities of category embedded in the transnational spaces.
Wideband Demodulator Based on Five-Port Correlator for Channel Sounding Applications  [PDF]
Imen Sfar, Lotfi Osman, Ali Gharsallah
Journal of Electromagnetic Analysis and Applications (JEMAA) , 2013, DOI: 10.4236/jemaa.2013.52013
Abstract:

We present in this paper a wideband RF demodulator using a five-port correlator and a power detector for channel sounding applications. The demodulator has been fabricated using microstrip components. The correlator receives from the five-port qualities that allow it to be low-cost and less sensitive to the phase and amplitude imbalances. A calibration procedure is proposed to find the complex envelope of the RF signal applied at the input of the five-port correlator. Simulation with Advanced Design System software and measurement results have been conducted to demonstrate its capabilities as a RF signal demodulator operating in a wideband around 2.4 GHz frequency.

The Contribution of Environmental Impact Assessment Studies to the Flora Biodiversity in Sudan  [PDF]
Osman M. M. Ali, Mohamed F. Idris
Journal of Environmental Protection (JEP) , 2016, DOI: 10.4236/jep.2016.712138
Abstract:
Environmental Impact Assessment Studies (EIA) for four developmental projects were chosen for this study viz-a-viz., oil and gas, river diversion, hydropower and gold mining. The EIA studies for these activities have been conducted in three different ecological regions: the flood region in the former southern Sudan, low rainfall Savannah and desert region. Trees, shrubs and herbaceous species were identified and recorded in each region. Species encountered for the first time, endangered, invasive and increasers were also reported. The EIA studies have produced lists of natural flora in areas which were difficult to access without the EIA missions. During the EIA study for Jonglei Canal project the new mono specific genus Suddia sagitifolia was discovered in the flood region as the only endemic aquatic plant in Sudan. Within the same region, the smallest floating plant in Sudan (Wollfia hyaline) was reported. The critically endangered “Argon Palm” (Medemia argun) was encountered in the Nubian Desert of the Red Sea State during a gold mining EIA study. The Seha (Belpharis persica), not reported to exist in desert conditions, has been found in the Great Desert west of the Nile during an EIA study for Kajbar Hydropower project. The paper calls for the publication of the above findings and highlights the need for further detailed studies in order to enhance knowledge of the Sudanese biodiversity status.
Acute Urinary Tract Infections in Children in Khartoum State: Pathogens, Antimicrobial Susceptibility and Associated Risk Factors
E Ali, A Osman
Arab Journal of Nephrology and Transplantation , 2009,
Abstract: Introduction: Adequate treatment of acute urinary tract infections (UTIs) in children depends on knowledge of the local pattern of causative pathogens and associated risk factors. We explored these patterns and risk factors in a group of Sudanese children who attended the emergency department of Gaafar Ibn Auf Pediatric Hospital in Khartoum, Sudan, with symptoms of acute UTI. Methods: Urine culture and sensitivity testing was performed for symptomatic children who had positive urine dipstick tests for nitrates and leuckocyte esterase. Results: Acute UTI was confirmed in 100 children, 74% of them were below 5-years of age and 35% were infants. The male-female ratio of affected children was 2.1:1 among infants, and 1:1.2 among older children. Uncircumcision and infancy were significantly more prevalent among children confirmed to have UTI compared to children with non-signifiacnt bacteruria. E. coli was the most commonly isolated pathogen (60%). Mean susceptibility of all isolates was high to gentamicin (96%), ciprofloxacin (94%), ceftriaxone (90%), and cefixime (85%). Mean susceptibility was moderate to cefuroxime (75%), nalidixic acid (74%), and nitrofurantoin (70%), and low to cephelexin (51%), cotrimoxazole (26%), amoxicillin-clavulanate (19%) and ampicillin (14%). Ultrasound scan was feasible in 89 children with confirmed UTI, revealing renal stones in six children (6.7%). Micturating cysto-urethrogram (MCUG) was indicated for 28 children but was feasible for only 15 children, revealing low-grade vesico-ureteric reflux (VUR) in five of them. Conclusion: E. coli was the commonest causative organism of acute UTI in our setting. Isolated pathogens were highly resistant to conventional empiric therapy. Male uncircumcision was significantly associated with UTI among the study patients.
CHRONIC RENAL FAILURE
OSMAN ALI JAN
The Professional Medical Journal , 2005,
Abstract: Objectives: This study on anemia in chronicrenal failure patients was aimed at evaluation and comparison of response to erythropoietin therapy in iron deficientgroups treated with parenteral vs iron deficient group treated with oral iron ; keeping iron replete patients as controls.Study design: Study design was case control study. Place and duration of study: The study was carried out atdepartment of medicine Military hospital Rawalpidi and Armed forces institute of Urology; from 1997-1998.Subject/Methods: A total of 59 patients were recruited. Comparison of the change in hemoglobin, hematocrit, andreticulocyte count and serum ferritin levels was made. They were divided into three groups based on their serum ferritinlevels. Group I (n=18) and group II (n=16) consisted of iron deficient patients. Group III (n=25) consisted of iron-loadedindividuals and they were treated with erythropoietin alone. This group acted as the control group for the study.Results: The hematocrit increased by an average of 6% in group I, 2% in group II and 5% in group III. The serumferritin levels increased by an average of 147.51 μg/l in group I. Group II on oral iron showed an increment of only 77.1mg/l. Group III that consisted of iron loaded patients showed a decrease of 594.2 mg/l in serum ferritin levels while onerythropoietin. Conclusions: (i) It was concluded that erythropoietin improved anemia in patients with chronic renalfailure, parenteral iron having a definitive advantage over oral iron therapy. This response is augmented bysupplementing iron in iron deficient patients. (ii) Conversely, functional iron deficiency, i.e. the inability to utilize ironin iron replete patients for erythropoiesis exhibit improvement with erythropoietin therapy.
Audio Noise Reduction Using Low Pass Filters  [PDF]
Ali Osman Mohammed Salih
Open Access Library Journal (OALib Journal) , 2017, DOI: 10.4236/oalib.1103709
Abstract:
The study aimed to filter and remove noise from audio, and in this study researcher followed the descriptive analytical method. The study sample consisted of an audio file and has been save Audio of on a formula (WAV), and the study used matlab 7.10.0 to read sound and design low pass filter, then insert the audio signal with the noise signal into the filter and output a signal audio without noise. The researcher has reached findings that differed according to the rank of the filter. The low pass filter has a great effect on removing noise during the registration process together with the times of implementation.
Is There a Role for Intravitreal Triamcinolone Acetonide Injection in the Treatment of Purtscher-Like Retinopathy? Report of Two Cases  [PDF]
Hasan Can Doruk, Ali Osman Saatci, Aylin Yaman
Open Journal of Ophthalmology (OJOph) , 2014, DOI: 10.4236/ojoph.2014.44023
Abstract: We hereby described two cases with unilateral Purtscher-like retinopathy. The first case occurred following an uneventful spontaneous vaginal delivery. The second case had no discernable cause despite having meticulous systemic work-up. Both eyes had low presenting visual acuity of hand movements and 20/200 consecutively. We elected to inject 1 mg triamcinolone acetolamide in-travitreally for the treatment. Though, there was some subjective visual and clinical improvement within time in both patients, we were not convinced that intravitreal injection was superior to no treatment approach.
Sickle Injury to Brain  [PDF]
Mubashshir Ali, Apoorva Kumar, Osman Musa Hingora, Faraz Ahmad
Open Journal of Modern Neurosurgery (OJMN) , 2015, DOI: 10.4236/ojmn.2015.51004
Abstract: We reported a case of a 12-year-old girl child with an uncommon intracranial metallic foreign body who was hit by her younger sister with sickle that got stuck to skull. Patient presented to us with stuck sickle in her head and was fully conscious with complaint of headache. She was very much afraid of her injury and was screaming with pain and fear. There was no neurological weakness. Computed tomography scan revealed that metallic foreign body was located adjacent to the confluence of major sinuses posteriorly on her skull. The location and position of foreign body suggested that it was of low velocity, and was hit from pointed end of sickle. It was taken out after doing craniectomy all around the sickle point and dural tear was repaired with pericranium. The postoperative course was uneventful.
Simultaneous Intravitreal Ranibizumab and Dexamethasone Implant Administration at the Same Setting in Eyes with Severe Diabetic Macular Edema  [PDF]
Ali Osman Saatci, Ziya Ayhan, Ceren Durmaz Engin
Open Journal of Ophthalmology (OJOph) , 2016, DOI: 10.4236/ojoph.2016.62016
Abstract: Aim: To share our experience in eyes with severe DME (exhibiting serous retinal detachment or large cysts) treated with simultaneous intravitreal ranibizumab and dexamethasone implant administration at the same setting as the first treatment step. Subjects and Results: Five eyes of three patients with DME who were either treatment naive or relatively undertreated were presented in this report. As optical coherence tomography exhibited serous retinal detachment or severe cystoid edema with large cysts, intravitreal ranibizumab and dexamethasone implant were simultaneously employed at the same setting as the first treatment step in those eyes. Panretinal photocoagulation was also commenced bilaterally a week after the start of injections when at least one eye had retinal neovascularization. Subsequent treatments of intravitreal ranibizumab and/or dexamethasone implant were administered. Patients were followed up for seven, eight and 13 months respectively. All five eyes achieved a relative anatomic stability and experienced visual improvement at the end of follow-up. Conclusion: In some cases with severe DME with or without proliferative diabetic retinopathy, simultaneous intravitreal ranibizumab and dexamethasone implant administration at the same setting may be a better option to initiate the treatment over mono ranibizumab treatment. A randomized study comparing the mono anti-VEGF therapy and mono dexamethasone implant administration with simultaneous treatment may outline the place of this type of therapy in the treatment armamentarium of severe DME.
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