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Search Results: 1 - 10 of 18874 matches for " Saber Al Sarafandi "
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Diagnostic Utility of Sago-Like Nodules on Gross Thoracoscopic Appearance in Tuberculous Pleural Effusion and Their Correlation with Final Histo-Microbiologic Findings  [PDF]
Merlin Thomas, Wanis H. Ibrahim, Tasleem Raza, Kamran Mushtaq, Adeel Arshad, Mushtaq Ahmed, Salma Taha, Shireen Omer, Saber Al Sarafandi, Omer Rabadi, Hisham A. Abdul-Sattar
Journal of Tuberculosis Research (JTR) , 2018, DOI: 10.4236/jtr.2018.64024
Abstract: Background: Distinguishing tuberculous pleural effusion (TPE) from other causes of exudative effusion is often challenging. Delay in treatment initiation can occur while awaiting histo-microbiologic confirmation owing to the paucibacillary nature of the disease. Sago-like nodules are the most common visual finding on gross thoracoscopic appearance. The primary objective was to determine the diagnostic utility of the presence of sago-like nodules on gross thoracoscopic appearance in TPE to help justify early initiation of tuberculosis (TB) treatment based on their finding while awaiting final histo-microbiologic confirmation. Secondary objective was to study the correlation between the presence of sago-like nodules and the final histo-microbiologic findings in pleural biopsy specimens. Methods: This was a retrospective-descriptive study of all patients with exudative pleural effusion who underwent diagnostic medical thoracoscopy (MT) at Hamad General Hospital during an eight-year period (from January, 2008 to December, 2015). Results: The presence of sago-like nodules on gross thoracoscopic appearance of the pleural surface had a sensitivity of 58%, a specificity of 89% and a positive predictive value of 97% for TPE with a diagnostic accuracy of 62%. There is significant association between the presence of sago-like nodules and demonstration of granulomatous inflammation in pleural biopsy specimens (P = 0.000). There is no association between sago-like nodules and positive TB smear and culture in biopsy specimens. Conclusion: The presence of sago-like nodules on gross thoracoscopic appearance has a high specificity and positive predictive value for TPE and significantly correlates with the presence of granulomatous inflammation. Patients from TB prevalent areas with exudative pleural effusion and sago-like nodules on gross thoracoscopic appearance may be commenced on TB chemotherapy while awaiting final histologic confirmation.
Skeletal extension rate of the reef building coral Porites species from Aqaba and their environmental variables  [PDF]
Saber Al-Rousan
Natural Science (NS) , 2012, DOI: 10.4236/ns.2012.49097
Abstract: Annual skeletal extension rates of the sclera-actinian corals Porites species were investigated in 32 colonies from the northern Gulf of Aqaba fringing reef at various depths (1 - 42 m). All corals reveal clear and regular skeletal density banding patterns. Results showed that the high-density annual growth bands were formed during winter and the low-density annual growth bands during summer. The mean annual extension rates of the studied corals reveal a large inter-colony variability with values ranged between 2.36 to 20.0 mm/year. While a general trend of decreasing coral extension rate with depth was observed and best explained by a simple exponential model, the rates clustered into two groups: 10.86 ± 2.54 mm/year in water depths less than 10 m, and 5.23 ± 1.99 mm/year below 12 m. Light intensity seems to be the primary environmental factor responsible for decreasing coral extension rate with depth since the effect of other environmental parameters could be neglected from the Gulf of Aqaba. Time series record of the mean annual coral extension rate showed a slight increasing linear trend which could be linked to increase seawater temperature over the period of time represented.
Fish assemblages in seagrass habitat along the Jordanian coast of the Gulf of Aqaba  [PDF]
Maroof A. Khalaf, Saber Al-Rousan, Fuad A. Al-Horani
Natural Science (NS) , 2012, DOI: 10.4236/ns.2012.48069
Abstract: The spatial distribution and community structure of the fishes were studied at different depths and sites along the Jordanian coast in seagrass habitat. A total of 37,034 fishes were counted representing 132 species belonging to 35 families observed during visual census in three sites (average of 4741.6 fish per transect). Out of the 132 species encountered, 5 species of them including Neopomacentrus miryae Lethrinus borbonicus, Pseudanthias squamipinnis, Lethrinus variegatus, Siganus rivulatus accounted for 57.7% of all individuals. Fishes were most abundant and significantly higher at 12 m depths (mean N = 2889.6) in comparison with shallow 6m depth (mean = 1225.3 with (p = 0.0218). This may be attributed to many plank-tivorous fishes that inhabit this depth such as P. squampinnis, Paracheilinus octotaenia, Chromis pelloura, Decapterus macarellus, and Cirrhilabrus rubriventralis probably with high abundance of plankton at 12 m depth than 6 m. The number of species was significantly higher in Phosphate Loading Berth (PLB; mean S = 54.7) than in Hotels area site (HA; mean S = 12.8) with (p = 0.0002) and Tala Bay site (TB; mean S = 31) with (p = 0.0484). This may be due to higher hard coral cover at Phophate Loading Berth.
Asmae Saber,Abdusalam Al Subari,Hafid Zouihri,El Mokhtar Essassi
Acta Crystallographica Section E , 2010, DOI: 10.1107/s1600536810013498
Abstract: In the molecule of the title compound, C12H12N4O, a C atom and an N atom of the benzimidazole fused-ring portion are part of a seven-membered ring; this ring adopts a boat-shaped conformation (with the fused-ring atoms representing the stern and the sp3-hybridized C atom the prow). The amino group is a hydrogen-bond donor to the imidazole group of an inversion-related molecule, the pair of N—H...N hydrogen bonds giving rise to a hydrogen-bonded dimer.
Segmented Display for Alphanumeric Bangla, English and Arabic Characters
Khondaker Abdullah-Al-Mamun,Suman Ahmmed,Farhana Sarker,Ahmed Yousuf Saber
Research Journal of Applied Sciences , 2012,
Abstract: On the era of globalization multicultural, multinational people are working under the same roof. As a consequence sometimes it becomes necessity to display the delivered information into Multi-languages. This study presents a 32-Segment display model to display Multi-languages characters such as all alphanumeric of Bengali and English and Arabic numerals. It is well known that 7-Segments display model is used commonly to display the English numerals from 0 to 9. A 16 segment display is used to display the English characters. Many researches are going on to display the Bengali and English alphanumeric by a single design. But unfortunately, in our best knowledge, there is no proper model exists to represent both Bengali and English alphanumeric. In this study, we propose an excellent 32-Segment display model which is not only successful to display Bengali and English alphanumeric but also become successful to display Arabic numerals.
Higher-Order Statistics for Automatic Weld Defect Detection  [PDF]
Sara Saber, Gamal I. Selim
Journal of Software Engineering and Applications (JSEA) , 2013, DOI: 10.4236/jsea.2013.65031

Image processing and image analysis are the main aspects for obtaining information from digital image owing to the fact that this techniques give the desired details in most of the applications generally and Non-Destructive testing specifically. This paper presents a proposed method for the automatic detection of weld defects in radiographic images. Firstly, the radiographic images were enhanced using adaptive histogram equalization and are filtered using mean and wiener filters. Secondly, the welding area is selected from the radiography image. Thirdly, the Cepstral features are extracted from the Higher-Order Spectra (Bispectrum and Trispectrum). Finally, neural networks are used for feature matching. The proposed method is tested using 100 radiographic images in the presence of noise and image blurring. Results show that in spite of time consumption, the proposed method yields best results for the automatic detection of weld defects in radiography images when the features were extracted from the Trispectrum of the image.

Isolated loss of inferior pubic ramus: a case report
Aly Saber
Journal of Medical Case Reports , 2008, DOI: 10.1186/1752-1947-2-202
Abstract: A fit and otherwise healthy 35-year-old woman presented with pain in the left lower limb of 6 months duration. She sought advice from an orthopedic surgeon and was referred for exclusion of a primary soft tissue neoplasm. There was no history of trauma, chronic medical illness or surgical operations. Full systemic examination, laboratory investigations and whole body imaging showed no soft tissue swelling or any other bony defects. Isolated loss of the left inferior pubic ramus and thinning of the superior pubic ramus were detected, raising the question of whether the lesion was a secondary osteolytic lesion, a primary osteolytic lesion or due to endocrine disease.Isolated loss of the inferior pubic ramus with no concomitant bony or soft tissue anomalies is previously unreported. To the best of the author's knowledge, this finding has not been described previously.The development of the pelvic girdles has been poorly investigated and reported evidence suggests that the regulation of ilium development is different from the development of ischium and pubis [1].An extensive study was carried out to investigate the prenatal development and mineralization of ossification centers in the pelvic bone (ilium, ischium, and pubic bone) using radiography and optical density measurements on human fetuses. The mineral density of the pelvic bone increases with age and the mineralization rate changes throughout fetal life [2]. The hip bone is ossified from eight centers: three primary, one each for the ilium, ischium, and pubis; and five secondary, one each for the crest of the ilium, the anterior inferior spine, the tuberosity of the ischium, the pubic symphysis, and one or more for the Y-shaped piece at the bottom of the acetabulum. At birth, the three primary centers are quite separate and by the seventh or eighth year, the inferior rami of the pubis and ischium are almost completely united by bone [3].Delayed ossification of limbs and girdles is an expression of several congeni
Evaluation of alteration in mucogingival line location following use of subepithelial connective tissue graft
Saber Fariba
Indian Journal of Dental Research , 2010,
Abstract: Aim and Objective : The aim of this study is to evaluate the positional changes that occur in mucogingival line following the use of subepithelial connective tissue graft (SCTG). Materials and Methods : In 19 Miller class I or II gingival recession defects, distance between mucogingival line (MGL) and cemento-enamel junction, also width of keratinized and attached gingiva, and clinical attachment level were measured. SCTG were used for covering the exposed roots. A fore mentioned parameters were repeated at 3, 6 and 12 months after surgery and alterations were measured. Paired t test was used to analyze the results. Results : MGL had been moved in coronal direction (4.39 ± 0.77 mm on average) during surgical approach. After 1 year, MGL shifted 2.11 ± 0.7 mm apically. In accordance with this apical shift, a significant increase in the width of keratinized and attached gingival width (2.89 ± 0.63 mm and 2.82 ± 0.5 mm, respectively) was seen (P < 0.05). Conclusion : MGL tended to revert back to its original position following the use of SCTG, and this reversion is accompanied with an increase in the keratinized and attached gingival width.
Comparative analysis of hydrate formation pressure applying cubic Equations of State (EoS), Artificial Neural Network (ANN) and Adaptive Neuro-Fuzzy Inference System (ANFIS)
Mohammad Saber
International Journal of Thermodynamics , 2012, DOI: 10.5541/ijot.367
Fastest Distributed Consensus on Petal Networks
Saber Jafarizadeh
Mathematics , 2010,
Abstract: Providing an analytical solution for the problem of finding Fastest Distributed Consensus (FDC) is one of the challenging problems in the field of sensor networks. Here in this work we present analytical solution for the problem of fastest distributed consensus averaging algorithm by means of stratification and semi-definite programming, for two particular types of Petal networks, namely symmetric and Complete Cored Symmetric (CCS) Petal networks. Our method in this paper is based on convexity of fastest distributed consensus averaging problem, and inductive comparing of the characteristic polynomials initiated by slackness conditions in order to find the optimal weights. Also certain types of leaves are introduced along with their optimal weights which are not achievable by the method used in this work if these leaves are considered individually.
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