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Search Results: 1 - 10 of 954 matches for " Abdulwasiu Salman "
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Lateral Nasal Capillary Haemangioma a Rare Occurrence—Case Report and Literature Review  [PDF]
Shuaib Kayode Aremu, Olajide Toye Gabriel, Adewoye Kayode Rasaq, Abdulwasiu Salman
Case Reports in Clinical Medicine (CRCM) , 2018, DOI: 10.4236/crcm.2018.711051
Abstract: Nasal lobular capillary haemangioma (CH), also known as pyogenic granuloma, is a benign lesion of unknown etiology commonly associated with pregnancy, oral contraceptive pills, and trauma. Marked by epistaxis and nasal obstruction, the condition involves benign capillary proliferation with a microscopically distinctive lobular architecture, affecting the skin and mucous membranes of the oral cavity and nasal region. This aim of this article is to report a case of lateral nasal capillary haemangioma in a 39-year-old female, who presented in our facilities having experienced spontaneous epistaxis on the left side of the nose for the previous three months. Endoscopy revealed a protruding left intranasal mass arising from the lateral nasal wall in the region of the middle turbinate and osteo-meatal complex. The patient underwent endoscopic excision of the mass and did excellently well thereafter with no recurrence.
East Jerusalem Students’ Attitudes towards the Acquisition of Hebrew as a Second or Foreign Language in the Arab Educational System of East Jerusalem and Society’s Support  [PDF]
Salman Ilaiyan
Creative Education (CE) , 2012, DOI: 10.4236/ce.2012.326151
Abstract: This is a pioneering study examining the eighth grade students’ attitudes in the Arab Education System in East Jerusalem towards learning Hebrew as a foreign/second language: their readiness to communicate in it, and the extent of the community support to learning it. The study is based on Schuman’s (1978) social theories regarding acquiring foreign/second language. The extent of the learner’s social integration in the community of the foreign/second language determines the extent of his success in acquiring the language. The study sample included 643 eighth grade students from East Jerusalem schools who are learning Hebrew as an elective subject. The study questionnaire included three parts: 1) Attitudes towards learning a foreign/second language 2) Readiness to communicate in a foreign/second language 3)The social support. The study findings indicate statistically significant positive correlation between all the measures of the following variables: 1) Attitudes towards a foreign/second language and readiness to communicate in it. 2) Attitudes towards Hebrew as a school subject got a higher positive score than attitudes towards the speakers of the language. 3) Family support (father/mother) got a higher positive score than the friends’ support, and this is following the instrumental issue. The main conclusion of the study is that there is a need to formulate a systemic and unique work plan accompanied with an addition of suitable position and budget to handle the problem of teaching Hebrew as a foreign/second language.
Difficulties Experienced by the Arab Teacher during His First Year of Teaching as a Result of Personal and Organizational Variables  [PDF]
Salman Ilaiyan
Creative Education (CE) , 2013, DOI: 10.4236/ce.2013.46053
Abstract:

This pioneer study deals with difficulties faced by the beginning Arab teacher. The theoretical framework of the research is based on Veenman’s (1984) analysis, which indicates 24 difficulties faced by the beginning teacher. These difficulties have been classified into eight categories ranked in order of importance. The study seeks to identify the difficulties experienced by the beginning Arab teacher during his first year of teaching and to predict his future dissatisfaction with teaching based on those difficulties. The questionnaire drafted especially for this study was completed by 130 participants (beginning teachers). The responses were analyzed, yielding six factors of difficulty. The findings indicate difficulties involving: 1) the interpersonal communication between beginning Arab teachers on the one hand and both students and parents on the other, 2) overload, 3) didactic and disciplinary knowledge, 4) support and recognition, 5) organizational climate (school culture), and 6) satisfaction. We examined the correlation between the beginning Arab teacher’s difficulties and his dissatisfaction with his work. The research findings reveal that the organizational climate (school culture) and overload factors significantly affect the satisfaction variable. With regard to the relation between the beginning Arab teacher’s general background characteristics and his difficulties in the first year, the background variable, specialization, was found to affect the factors of difficulty.

Re-Internationalization v/s Initial Internationalization: Comparison of Modes of Operations  [PDF]
Salman Ali
Theoretical Economics Letters (TEL) , 2019, DOI: 10.4236/tel.2019.91017
Abstract:

Re-internationalization is defined as firms’ re-entry into international operations after they have abandoned all their previous internationalization efforts. In this paper, we report findings from a survey administered among senior-level managers of re-internationalized Indian firms where we studied the differences in firms’ choices in modes of operations during re-internationalization phase as compared to initial internationalization phase. The results from the survey indicated that firms tended to go for high involvement modes of operations during re-internationalization as compared to the relatively low involvement modes of operations undertaken during initial internationalization. This trend of going for higher involvement modes of operations was more visible in firms that had a presence in a relatively higher number of countries during the re-internationalization stage. This incremental nature of internationalization, i.e. going from initial low involvement modes of operations toward high involvement modes of operations as firms gained experience in both time and space from their initial through re-internationalization attempts, found support for the Uppsala model of internationalization. Being among the first studies on the topic, we expect this study to serve as a foundation for researchers to explore deeper related queries. This study also has meaningful practical and policy implications.

Crossed Renal Ectopia Coexisting with Nephrolithiasis in a Young Nigerian Man
BB Taslim, BA Abdulwasiu, S Olusegun, AC Oluwatoyin, MM Omolara
Arab Journal of Nephrology and Transplantation , 2012,
Abstract: Introduction: Renal ectopia or ectopic kidney is a congenital anomaly in which one or both kidneys are located in an unusual position. It results from the kidney failing to ascend properly from its origin in the true pelvis. In some cases, one kidney may cross over (crossed renal ectopia) so that both kidneys are on the same side of the body. When a crossover occurs, the two kidneys may grow together and become fused (crossed fused renal ectopia). Renal ectopia is generally uncommon; its coexistence with nephrolithiasis is even rarer. Due to its variable presentations, it is usually discovered incidentally, especially when investigating patients for abdominal pain. Treatment may be conservative when renal function is preserved and no complication is associated. Case report: we highlight the unusual occurrence of renal ectopia with nephrolithiasis in a 34 year-old Nigerian businessman who presented to the renal clinic of our hospital with a three-month history of intermittent dull right flank pain radiating to the right groin. Physical examination revealed right lumbar tenderness without guarding. The rest of the examination was unremarkable. An abdominal ultrasound scan done revealed a linear calculus in the right renal collecting system but the left kidney was not visualised. An intravenous urogram (IVU) showed a crossed ectopic kidney with nephrolithiasis. The patient was treated conservatively and his kidney function has remained stable. Conclusion: This case report describes the relatively uncommon finding of crossed renal ectopia associated with nephrolithiasis.
Modified technique for volumetric brain tumor measurements  [PDF]
Yasser M. Salman
Journal of Biomedical Science and Engineering (JBiSE) , 2009, DOI: 10.4236/jbise.2009.21003
Abstract: Quantitative measurements of tumor response rate in three dimensions (3D) become more re-alistic with the use of advanced technology im-aging during therapy, especially when the tumor morphological changes remain subtle, irregular and difficult to assess by clinical examination. These quantitative measurements depend strongly on the accuracy of the segmentations methods used. Improvements on such methods yield to increase the accuracy of the segmentation process. Recently, the essential modification in the Traditional Region Growing (T-RG) method has been developed and a “Modified Region Growing Method” (MRGM) has been presented and gives more accurate boundary detection and holes filling after segmentation. In this pa-per, the new automatic calculation of the volu-metric size of brain tumor has been imple-mented based on Modified Region Growing Method. A comparative study and statistical analysis performed in this work show that the modified method gives more accurate and better performance for 3D volume measurements. The method was tested by 7 fully investigated pa-tients of different tumor type and shape, and better accurate results were reported using MRGM.
A Comparison and Performance of Different Optical Switching Architectures  [PDF]
Salman Ali AlQahtani
Int'l J. of Communications, Network and System Sciences (IJCNS) , 2011, DOI: 10.4236/ijcns.2011.48063
Abstract: Optical Packet Switching (OPS) and transmission networks based on Wavelength Division Multiplexing (WDM) have been increasingly deployed in the Internet infrastructure over the last decade in order to meet the huge increasing demand for bandwidth. Several different technologies have been developed for optical packet switching such as space switches, broadcast-and-select, input buffered switches and output buffered switches. These architectures vary based on several parameters such as the way of optical buffering, the placement of optical buffers, the way of solving the external blocking inherited from switching technologies in general and the components used to implement the WDM. This study surveys most of the exiting optical packet switching architectures. A simulation-based comparison of input buffered and output buffered architectures is presented. The performance analysis of the selected two architectures is derived using simulation program and compared at different scenarios. We found that the output buffered architectures give better performance than input buffered architectures. The simulation results show that the-broadcast-and-select architecture is attractive in terms that it has lees number of components compared to other switches.
Characteristics of “Exemplary Teachers” and Possible Factors Affecting Their Realization According to the Perception of Principals from the Arab Sector in Israel  [PDF]
Salman Ilaiyan, Rafi’ Safadi
Creative Education (CE) , 2016, DOI: 10.4236/ce.2016.71012
Abstract: This study examines the characteristics of exemplary teachers and the factors that are liable to inhibit/encourage their realization according to the perception of principals from the Arab sector in Israel. Ten principals were interviewed. They considered leading educational initiatives, coping with discipline problems, subject matter mastery, and employing a variety of teaching methods to be the exemplary teacher’s outstanding characteristics. Characteristics associated with ongoing professional development and relationships with colleagues, pupils, and parents were deemed less prominent. The principals did not manifest a unified stance vis-à-vis whether their schools’ physical-pedagogical infrastructure encouraged or inhibited the realization of the characteristics of exemplary teaching. It was recommended that in parallel to broadening didactic and disciplinary knowledge, it would be worthwhile fostering the ability of the teachers, in particular pre-service teachers and beginning teachers, to lead educational initiatives and establish interpersonal relationships, and giving them tools for coping with discipline problems.
Design and Construction of a Spiral Heat Exchanger  [PDF]
Jamshid Khorshidi, Salman Heidari
Advances in Chemical Engineering and Science (ACES) , 2016, DOI: 10.4236/aces.2016.62021
Abstract: In this article, the performance and applications of a Spiral Plate Heat Exchanger are demonstrated. Also, governing equation of heat transfer phenomena in such heat exchangers is discussed. Regarding the governing equations, a LAB-sized model of this type of heat exchanger was designed and constructed. Galvanized Iron sheets were used as the heat transfer surfaces. Two Galvanized Iron sheets were rolled together around a central core and, as a result, two separated channels were made. Also, a predesign simulation of the heat exchanger was done using the Fluent software to predict the performance of the heat exchanger. First the geometry was made using Gambit software environment then the model was analyzed through Fluent. Because of less fouling, easier cleaning and high heat transfer coefficient, Spiral Heat Exchanger is a good alternative to the other types of heat exchangers, especially when it’s going to handle high fouling flows or highly viscous fluids. Low fouling rate of the heat exchanger, reduces the need of cleaning and therefore the out of service will be decreased. In the constructed heat exchanger, Nusselt number increases as the mass flow rate increases. Average Nusselt number is about 100 that is very good.
Contaminant Properties of Hospital Clinical Laboratory Wastewater: A Physiochemical and Microbiological Assessment  [PDF]
Beril Salman Akin
Journal of Environmental Protection (JEP) , 2016, DOI: 10.4236/jep.2016.75057
Abstract:

Hospital laboratory wastewater has been considered to significantly change the degree of contamination of especially the hospital wastewater. The present study investigated the hospital clinical laboratory wastewater and the pollution loads were assessed for pathogens, heavy metals, and organic materials. Composite samples were collected from clinical laboratory wastewater of a 350-bed hospital for a six-month period. Analyses for pH, TSS (Total Suspended Solid), BOD (Biochemical Oxygen Demand), COD (Chemical Oxygen Demand), PO4-P, and Cl as well as heavy metals (Cd, Pb, Zn, Cu, Cr, Co, Ni, Al, and Mn) were made in order to physiochemical properties of the samples. Bacterial isolation (Pseudomonas aeruginosa, Escherichia coli, Acinetobaumanii, CNS—Coagulase- Negative Staphylococcus) and antigen-antibody analyses were conducted in order to find the microbiological pollution load of the wastewater. As a result of the study it was found that the hospital clinical laboratory wastewater was alkaline and COD/BOD ratio reached to a range of 10 - 12 in the wastewater. It was concluded that although the heavy metal concentrations were within the sewage discharge limits the said levels could pose health risk. It was also found that the wastewater entailed health risk due to pathogens.

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