183 research outputs found

    The concept of the collective ądāla of the Prophet Muhammad's Companions

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    This study seeks to investigate the concept of the collective ta'dil of the Prophet Muhammad's Companions as presented in the Sunni sources. According to this concept, all the Companions are considered trustworthy transmitters and this is the guarantee of the preservation of the whole religion of Islam. From our examination of the early and medieval Sunni sources, it is concluded that the root of the concept goes back to the early Murji'i attitude towards the Companions, an attitude taken according to their definition of faith and the position of the grave sinner. Not only did the concept develop out of this, but it also rested on the same epistemological ground of Murji'ism; that is, certitude is the only valid basis of any attitude towards people and events. In order to block any attempt to question the original 'adala of the Companions, the Sunni scholars argued that it was confirmed by the Qur'an and the Sunna. The accounts of the early schisms do not provide certain knowledge and thus cannot annul the original and certain 'adala of the Companions. This agrees with an established rule in Sunni Hadith criticism that everyone is 'adl until proven otherwise (expressed in some Sunni schools of law as the rule of istishab). From all this, it is concluded that the Sunni sources implicitly make a distinction between the 'adala and the ta'dil of the Companions: whereas 'adala is the original state that is further confirmed by the Qur'an and the Sunna, ta'dil is the sound attitude that Muslims should take according to the rule of istishab and, to a lesser extent, according to the view that the Companions were exercising ijtihad. This means that belief in the original 'adala of the Companions is the actual Sunni doctrine. Ta'dil, which is the main object of ijma' in this issue, is an attitude based mainly on the ground of lack of certitude

    USING CONE-BEAM COMPUTED TOMOGRAPHY TO EVALUATE APICAL TRANSPORTATION AND CENTERING ABILITY OF WAVEONE, ONESHAPE AND TORNADO ROTARY SYSTEMS: A CLINICAL STUDY

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    This clinical study was aimed to evaluate apical transportation and centering ability of WaveOne, OneShape files and Tornado rotary system using Cone-beam computed tomography (CBCT). Lower molars with a curving angle of buccal canals extending from 15°-45° in 24 patients were arbitrarily divided into three groups (n=8) rendering to the rotary systems used: Group 1, Tornado system, Group 2, WaveOne rotary system, and Group 3, OneShape rotary system. CBCT was used as a diagnostic method to evaluate centering ratio and canal transportation at 2, 5 and 8 mm from apical foramen. One-way analysis of variance and post hoc Tukey tests were used for statistical analysis at p≤0.05. No statistically significant difference in the magnitude of transportation and centering ability was found at all tested levels (P\u3e0.05). WaveOne and OneShape nickel-titanium files and Tornado stainless-steel file conserved the original canal curvature with no significant variance

    Applying Association Rules and Co-location Techniques on Geospatial Web Services

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    Most contemporary GIS have only very basic spatial analysis and data mining functionality and many are confined to analysis that involves comparing maps and descriptive statistical displays like histograms or pie charts. Emerging Web standards promise a network of heterogeneous yet interoperable Web Services. Web Services would greatly simplify the development of many kinds of data integration and knowledge management applications. Geospatial data mining describes the combination of two key market intelligence software tools: Geographical Information Systems and Data Mining Systems. This research aims to develop a Spatial Data Mining web service it uses rule association techniques and correlation methods to explore results of huge amounts of data generated from crises management integrated applications developed. It integrates between traffic systems, medical services systems, civil defense and state of the art Geographic Information Systems and Data Mining Systems functionality in an open, highly extensible, internet-enabled plug-in architecture. The Interoperability of geospatial data previously focus just on data formats and standards. The recent popularity and adoption of the Internet and Web Services has provided a new means of interoperability for geospatial information not just for exchanging data but for analyzing these data during exchange. An integrated, user friendly Spatial Data Mining System available on the internet via a web service offers exciting new possibilities for spatial decision making and geographical research to a wide range of potential users.   Keywords: Spatial Data Mining, Rule Association, Co-location, Web Services, Geospatial Dat

    The Media and the Making of the 2011 Egyptian Revolution

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    While views may differ on the factors that made the 2011 Egyptian revolution possible, the role of mass media will remain undisputable. The Internet-based social networks caught the Mubarak regime by surprise, and the popular disillusionment with the ‘national’ media led the public to turn to private newspapers and satellite channels for keeping pace with the events. This paper examines the role of specific media during the 18 days of the 2011 Egyptian revolution – from 25 January to 11 February, 2011 – which we have divided into four parts. It discusses how these media contributed to the unfolding of events, conceptualized the protests and the demands of the public, and presented the actors that participated in or opposed the revolution. These points are addressed by discussing the content of the Facebook pages of the Sixth of April Movement and We Are All Khalid Said, as well as that of a private Egyptian newspaper, al-Shuruq, and the state-run newspaper al-Ahram.1 1 This paper was presented in the conference Covering the Arab Spring, Middle East in the Media – Media in the Middle East at the University of Copenhagen on 1-2 September, 2011. We would like to thank the conference organizers, Ehab Galal and Riem Spielhaus, as well as the two reviewers of Global Media Journal (German Edition) for their useful comments and suggestions

    XEN Glaucoma Implant with Mitomycin C 1-Year Follow-Up: Result and Complications

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    Purpose. To evaluate gel microstent (XEN, Aquesys, Inc) for treatment of primary open angle glaucoma (POAG). Methods. In this prospective interventional study, 13 eyes with POAG underwent XEN implantation with subconjunctival mitomycin-C. Of those eyes, 3 were pseudophakic and 10 underwent simultaneous phacoemulsification and XEN. Patients had uncontrolled IOP, had intolerance to therapy, or had maximal therapy but undergoing cataract extraction. Follow-up visits included IOP, number of medications, vision, and complications and lasted for 1 year. Complete success was defined as IOP reduction ≥20% from preoperative baseline at 1 year without any glaucoma medications while partial success as IOP reduction of ≥20% at 1 year with medications. Results. IOP dropped from 16 ± 4 mmHg pre-op to 9 ± 5, 11 ± 6, 12 ± 5, 12 ± 4, and 12 ± 3 mmHg at 1 week, 1, 3, 6, and 12 months (p=0.004, 0.026, 0.034, 0.01, and 0.01, Wilcoxon Signed Ranks) consecutively. BCVA (LogMAR) was 0.33 ± 0.34 and improved to 0.13 ± 0.11 at 1 year. Mean number of medications dropped from 1.9 ± 1 preoperatively to 0.3 ± 0.49 (p=0.003) at 1 year. 42% of eyes achieved complete success and 66% qualified success. Complications included choroidal detachment in 2 eyes, and implant extrusion in 1 eye, and 2 eyes underwent trabeculectomy. Conclusion. XEN implant is an effective surgical treatment for POAG, with significant reduction in IOP and glaucoma medications at 1 year follow-up

    Chest wall reconstruction still has place in Today’s modern practice:" a tertiary center experience"

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    Background: The key factor following chest wall resection is the preservation of the stability and integrity of the chest wall to support the respiration and protect the underlying organs. The present study aims to evaluate the use of the available grafts and prosthetic materials at our center in chest wall reconstruction with adherence to the proper surgical techniques, good perioperative and postoperative care to obtain good results. Methods: This is a retrospective single center study that concludes all patients underwent chest wall reconstruction for a variety of defects resulting from resection of tumors, trauma due to primarily firearms or motor car accidents, resection of radio necrotic tissues, infection and dehiscence of median sternotomy wounds after cardiac surgery.  Results: Study population consisted of 30 patients between January 2015and may 2018, among them were 20 male (70%) and 10 female patients (30%), with a median age of 43 ± 16.3 years, resection and reconstruction was performed in 23 cases (15 neoplastic,5 infective and  3 firearm cases) while reconstruction alone was performed in 7 (traumatic flail chest)  cases. Eighteen patients, underwent rib resection with an average 4.18 ± 2.2 ribs (range 2-6). Associated lung resection was performed in 5 patients (27.8 %): diaphragmatic resection was done in 2 cases in addition total sternal resection was performed in 5 cases. Most of the patients (96.7%) had primary healing of their wounds. there was one death (3.3%) in the early postoperative period. The average length of hospital stay for all patients was 8.7 days (range: 5–15). Respiratory complications occurred in three cases in the form of atelectasis and pneumonia at the ipsilateral side of reconstruction. Three cases suffered wound seroma which successfully managed by daily dressing and antibiotic coverage. Conclusions: according to our study and the analysis of similar studies, adequate perioperative preparation of patient undergoing chest wall resection and reconstruction with adherence to effective surgical techniques allowed us to use the available materials at our center for chest wall reconstruction with good and effective results without adding burden in terms of cost on the patient
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