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OALib Journal期刊

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Evaluation of antiulcer activity of Boswellia serrata bark extracts using aspirin induced ulcer model in albino rats
Khaja Zeeyauddin,Mangamoori Lakshmi Narsu,Muna Abid,Mohammed Ibrahim
Journal of Medical and Allied Sciences , 2011,
Abstract: The effect of bark extracts of Boswellia serrata (Family Bursera-ceae) was evaluated in aspirin induced ulceration (200mg/kg) in albino rats. Antiulcer activity was evaluated by measuring ulcer index and percentage of ulcer healing. The petroleum ether (250mg/kg) and aqueous extracts (250mg/kg) of bark of Boswellia serrata plant showed significant antiulcer activity as evidenced by the data obtained. Histopathological findings also confirm the anti-ulcer activity of Boswellia serrata bark extracts in albino rats.
Electrochemical Self-Assembly of Nanoporous Alumina Templates Title  [PDF]
Muna Moussa Abbas
Advances in Materials Physics and Chemistry (AMPC) , 2013, DOI: 10.4236/ampc.2013.35035
Abstract: Porous alumina was fabricated electrochemically through anodic oxidation of aluminum by means of such a self-organized method. Anodic aluminium oxide (AAO) template with nanopores was grown by two-steps anodization processes from a high purity aluminium foil. The anodization process was carried out in a phosphoric acid electrolyte at ambient temperature with a different duration of anodization. The analysis observation by Atomic Force Microscopy (AFM) showed that nanopore size increased with anodization time. The nanopore sizes of porous alumina were (16.04, 26.19 and 37.39 nm) for (1, 2 and 3 hour) respectively.
A Qualitative Exploration of Help-Seeking Process  [PDF]
Muna Abdullah Al-Bahrani
Advances in Applied Sociology (AASoci) , 2014, DOI: 10.4236/aasoci.2014.47020
Abstract:

Matriculation to college life can often pose adjustment problems that require identification and help. This is especially true in societies where gender separation is the norm. This qualitative study explores the help-seeking process from the subjective and cultural perspective of Omani students. The processes of help-seeking behavior within the Omani cultural framework are explored in terms of recognizing, defining a problem, making decision, and selecting sources of help. A triangulation methodology was used in this study that included two and half months of observation and interaction at Sultan Qaboos University in the office of Deanship of Student Affairs, the Counseling Center, and the Psychiatric Department of the university hospital. Individual and focus-group interviews were conducted. The interviews were, for the most part, extensive dialogues. Statistical documents in regard to students’ academic probation as well as newspaper articles aided in understanding the Omani help-seeking process. The results show that Omani students experience multiple challenges that impact their psychological adjustments. These challenges can be associated with the novelty of academic life and the coeducational culture of the institution. Some freshmen face with new expectations of learning as well as separation from their close ties, and struggle to find a balance between some of their traditional points of reference and the new sets of values to which they are exposed at Sultan Qaboos University. The influence of traditional culture on the dynamics of problem recognition may be expressed by anger and rejection, declining academic achievement, and violation of religious principles. For these students, traditional values and religious practices are seen as key coping mechanisms.

Early Gallbladder Cancer: Clinical, Morphological, Therapeutic and Evolutionary Aspects  [PDF]
Berkane Salah, Abid Larbi
Surgical Science (SS) , 2013, DOI: 10.4236/ss.2013.411095
Abstract:

Introduction: The early cancer of gallbladder is an entity which is not well recognized currently. It is a cancer which does not extend beyond the muscularis layer of the gallbladder and it is characterized in almost of cases by the absence of lymph node and visceral invasion. Patients and Method: We have conducted this retrospective study of all our cases of early gallbladder cancer treated in our surgical unit. We have studied these through clinical, morphological, therapeutical and evolutionary aspects. Results: Of 202 gallbladder carcinoma, 33 cancers were classified as early cancer. 25 were females and 8 were males. The mean age was 56.4 years (4170 years). All patients were free of gallbladder cancer symptoms and all except one had normal CEA and CA19.9. 2 patients had synchronous tumors (one colonic cancer and one rectal cancer). For 16 patients, the diagnosis was done by ultrasonography and 17 by histological examination of the specimen removed for biliary lithiasis. 8 patients had PT1a tumor (confined only to mucosa) and 25 had PT1b tumor (tumor infiltration of the muscular layer). For 19 patients who benefited from extensive lymphadenectomy, only one (5.3%) had lymph node infiltration. 16 patients had a simple cholecystectomy and in two cases, the cholecystectomy was associated with bile duct resection. 17 patients had hepatectomy with extensive lymphadenectomy.

Success Factors of Extracorporeal Shock Wave Lithotripsy (ESWL) for Renal & Ureteric Calculi in Adult  [PDF]
Ammar Fadil Abid
Open Journal of Urology (OJU) , 2014, DOI: 10.4236/oju.2014.43005
Abstract:

The purpose of this study was to define factors that have a significant impact on the stone-free rate after ESWL. Methods: A total of 417 patients harboring renal or ureteral stones underwent extracorporeal shock wave lithotripsy (ESWL) between October 2008 and July 2012. Eighty five patients were lost on follow up. The remaining (n = 332). All patients were >18 yr of age. Siemens and SLX-F2 electromagnetic machines were used to impart shock waves. Patients were stratified according to localization (pelvic, calyceal, or ureteral stones) and stone size (up to 10 mm, 10 - 20 mm, and >20 mm). Result: The overall success rate was 251/332 (75.6%) achieve stone free status. Repeated ESWL sessions were needed in 258 (61.9%). Of eleven variables were studied including age, sex, side, location (pelvic, calyx, ureter), ureteric stent, previous renal surgery, stone size, number of shock waves, opacity of stone, renal system state, and type of lithotripter, three variables were significantly affect the success rate namely stone size, number of shock waves and location of stone. Conclusions: ESWL remains one of the most commonly utilized treatments for patients with upper urinary tract calculi; Stone diameter, location, and number of shock waves, are the most important predictors determining stone clearance after ESWL of renal and ureteric calculi. To optimize treatment outcomes with ESWL the presence of treating urologist is essential to optimize the final result.

Innovative Culture: An Intervention Strategy for Sustainable Growth in Changing Scenario
Muna Kalyani
International Journal of Business Administration , 2011, DOI: 10.5430/ijba.v2n4p84
Abstract: To-day’s era is very hypercompetitive, a key feature of the new economy in the changing business scenario. The pace of change is increasing at an exponential rate. Continuous change and maintenance of high standards of quality products, services and processes have become prerequisites of the organization’s success in to-day’s competitive world. Organizations can rarely stand still for long. In highly competitive environment, where competition is global and innovation is continuous, change has become a core competency of organizations. Change refers to making things different. Innovation is a more specialized kind of change. All innovation involves change, but not all changes necessarily involve new ideas or lead to significant improvement or radical breakthroughs. Competitive climate requires organizations to institutionalize the process of innovation –to plant the seeds of innovations can utterly transform a scenario, involves the unfreezing-change-refreezing process. Innovation is not a thing that can be purchased or installed like a computer system. Rather it is a culture that must be adopted and nurtured which extracts values from assets old and new, and rejuvenates and revolutionizes industry, society and business. Innovation is an act of changing the established way of doing things, the ability to turn knowledge into value and link emerging technologies with emerging markets and is about bringing creative new ideas to life. The process involves the ways in which norms and values are set and practiced, holds innovative driven culture. This innovative culture can give competitive advantage; provided it is deeply rooted in the functional aspects of the organizations’ culture, where the productive potential of people’ knowledge and actions are guided and governed by the spirit and principles of OCTAPACE and innovative cultures. These cultures get into hyper drive mode to keep growth engine humming. The article examines this context and argues that organizations can use innovative culture as a strategic intervention for managing change for survival and growth.
Dynamic Session Key Exchange Method using Two S-Boxes
Sohail Abid,Shahid Abid
Computer Science , 2012,
Abstract: This paper presents modifications of the Diffie-Hellman (DH) key exchange method. The presented modifications provide better security than other key exchange methods. We are going to present a dynamic security that simultaneously realizes all the three functions with a high efficiency and then give a security analysis. It also presents secure and dynamic key exchange method. Signature, encryption and key exchange are some of the most important and foundational Crypto-graphical tools. In most cases, they are all needed to provide different secure functions. On the other hand, there are also some proposals on the efficient combination of key exchange. In this paper, we present a dynamic, reliable and secure method for the exchange of session key. Moreover, the proposed modification method could achieve better performance efficiency.
Turbulent Flow Simulations through Tarbela Dam  [PDF]
Muhammad Abid, Adnan Aslam Noon
Engineering (ENG) , 2010, DOI: 10.4236/eng.2010.27067
Abstract: Tarbela dam is one of the largest earth filled dam in the world. The sediments inflow in the Tarbela reservoir has resulted in reduction in water storage capacity. In addition damage to the tunnels, power generating units and ultimately to the plant equipment by the sediments particles carried by water is observed. To the authors knowledge, to-date no comprehensive simulation studies are performed for this dam reservoir and tunnels, especially at present when sediment delta and presence of sediment particles in the tunnels is observed to a reasonable extent. The aim of this study is to investigate the damage to the Tunnel 2 of the Tarbela Dam with and without considering the affect of sediment particles for one way and two way/full coupling during summer, winter and average seasons, using turbulent flows of water. Numerically calculated erosion results are compared with the experimental erosion results. Pressure, velocity and erosion rate density results are discussed in detail.
High Density Fluorine Negative-Ion Source Generated by Utilizing Magnetized SF6  [PDF]
M. Abid Imtiaz, Tetsu Mieno
Journal of Modern Physics (JMP) , 2014, DOI: 10.4236/jmp.2014.52014
Abstract:

In a magnetized plasma column generated from an electronegative gas, negative-ions accumulate around the plasma column via radial diffusion. In this study, a dc discharge is applied in SF6 gas to produce a plasma column, and the radial density profile of negative-ions is measured by Langmuir probes using the modified Bohm criterion. The gas pressure and discharge current dependences of negative-ion density are also measured. It is found that the negative-ion density of 8.0 × 1017 m-3 is obtained around the plasma column at r = 1.0 cm when SF6 pressure is 0.13 Pa and discharge current is 0.50 A. The negative-ion density has radial gradient, and the electron density is much lower in this region.

OBSTRUCTIVE JAUNDICE
ABID SHARIF
The Professional Medical Journal , 2004,
Abstract: Objective: To determine the efficacy of Endoscopic RetrogradeCholangiopancreatography (ERCP) in patients presenting with obstructive jaundice. DESIGN:Prospective study. Place & Duration of Study: This study was conducted at Military hospitalRawalpindi from 2000 to 2001, which is a tertiary referral centre for armed forces. Patients & Methods:50 patients were selected of both sexes for ERCP. Subjects of this study were patients who werediagnosed to have obstructive jaundice on the basis of laboratory investigations and sonography. Patientswith less than 15 years of age and with conditions other than obstructive jaundice were not included.ERCP was carried out in left lateral position with the left arm held behind the back of the patient. Theresults were then prepared and analyzed by Fisher Exact test to find out significance between theultrasound and ERCP. Results: Successful ductal pacification was achieved in 45 cases. The grosspathological findings included 18 cases with stones, 11 cases with stricture and 12 cases with carcinoma.Only one case had choledochal cyst. Conclusion: ERCP is a useful diagnostic tool, providing direct andnon-surgical imaging of pancreatic and biliary ducts. It has improved the diagnostic yield and has provedto be more safe and economical mean of pre-operative assessment of obstructive jaundice without theneed for more expensive CT scan / MRI or more invasive Per cutaneous Transhepatic Cholangiography(PTC).
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