Predicting the Performance of MPI Applications over Different Grid Architectures

في الوقت الحاضر خوارزميات التحسين عالية السرعة تكون مطلوبة. في معظم الحالات ، يحتاج الباحثــــــــون إلى طريقة للتنبؤ ببعض المعايير بدقة مقبولة لاستخدامها في خوارزمياتهم. ومع ذلك ، في مجال الحوسبة المتوازية يمكن اعتبار وقت التنفيذ من أهم المعايير. لذا، يعرض هذا البحث نموذجًا جديدًا للتنبؤ بالوقت للتنفيذ لتطبيقات المتوازيـــــة الموزعة المنفذه على العديد من سيناريوهات الشبكة. حيث يمتلك النموذج المقترح القدرة علـــــــــى التنبؤ بوقت تنفيذ التطبيقات المتوازية التي تعمل عبر أي تكوين للشبكة من حيث عدد العقد المختلفة وقوى الحوسبة الخاصة بها. لقد تم تنفيذ التجارب على المحاكي  سمكرد الذي يمتلك خاصية السهولة في بناء نماذج شبكية متعدد ومختلفة. نتائــج الاختبارات بين اوقات التنفيذ الاصلية والاوقات المتنبئة بينت دقة تجيربية جيده. معدل الخطأ النسبي بين وقت التنفيذ الاصلي والمتنبأ لثلاث برامج معيارية تكون هي 4.36٪، 5.79٪ و 6.81٪.Nowadays, the high speed and accurate optimization algorithms are required. In most of the cases, researchers need a method to predict some criteria with acceptable accuracy to use it after in their algorithms. However, in the field of parallel computing the execution time can be considered the most important criteria. Consequently, this paper presents new execution time prediction model for message passing interface applications execute over numerous grid scenarios. The model has ability to predict the execution time of the message passing applications running over any grid configuration in term of different number of nodes and their computing powers. The experiments are evaluated over SimGrid simulator to simulate the grid configuration scenarios. The results of comparing the real and the predicted execution time show a good accuracy. The average error ratio between the real and the predicted execution time for three benchmarks are 4.36%, 5.79% and 6.81%

The Effect of Knowledge Management and Organizational Commitment on Lecturer Performance in University

 This study aims to analyze the effects of organizational commitment and knowledge management on lecturer performance, analyzing the effect of organizational commitment on lecturer performance, analyzing the effect of knowledge management on lecturer performance, and analyzing the effect of knowledge management on lecturer performance. The number of samples in this study was respondents of FTMS Malaysian University. The data was analyzed using descriptive and inferential statistics performed by SPSS-23 and Smart PLS 3.3.3. The results of the analysis show that organizational commitment had a significant effect on lecturer performance and knowledge management had a significant effect on lecturer performance. Overall, this study's result shows a positive response from all respondents, and most of them have general ideas about performance

Eight – and - half syndrome: a rare neuro-ophthalmic syndrome “Possible Nine Syndrome”

“Eight-and-half” syndrome is “one-and-a-half” syndrome characterized by conjugated horizontal gaze palsy and internuclearopthalmoplegia plus ipsilateral fascicular seventh nerve palsy. We report a case of 50 year old woman who presented with right eight and half syndrome together with contralateral hemiparesis and hemihypesthesia. Non contrast CT scan brain showed hyperdensesignal on right pontine region. MRI brain plain revealed hemorrhagicpontinetegmentuminfarction as well as corticospinal tract and medial meniscus. This spectrum of presentation suggests a possible “Nine syndrome” as a novel neuropthalmicpontine syndrome. The first of its kind ever reported from Pakista

Knowledge, attitudes and practices of emergency care practitioners in the management of common dental emergencies in the eThekwini District, KwaZulu-Natal.

It is essential to provide timeous and appropriate treatment in cases of dental emergencies. First responders such as Emergency Care Practitioners (ECPs) usually provide this prehospital care. The successful management of casualties experiencing common dental emergencies is dependent on two fundamental factors; the first responder's knowledge and ability to render the appropriate level and standard of medical care, and secondly, the time that expires between the onset of the incident and the initiation of definitive emergency medical treatment. Delayed or inappropriate management can have long term physiological and psychological effects.This was an exploratory and descriptive study, using quantitative and qualitative methods to determine the knowledge and attitudes of Emergency Care Practitioners of the eThekwini District of KwaZulu-Natal, South Africa, in the management of dental emergencies.The results revealed that Emergency Care Practitioners had inadequate knowledge, training, and understanding of the management of common dental emeregncies by ECPs. There was limited initial training, with a significant portion of the participants (44.9%, p 0.233) having not received any training at all in the management of orofacial traumas, and with a significant majority (78.3%, < 0.001) having no further education and training. Most ECPs indicated a desire to receive such training. This study indicated that ECPs lacked confidence in managing dental emergencies, which highlighted a need for specific dental awareness and training programs to further empower ECPs in the management of such emergencies

A comparative analysis of oral healthcare policy development between a developed country (Australia) and a developing country (South Africa)

Ph. D. University of KwaZulu-Natal, Durban 2014.Introduction: Health policy analysis aims to explain the interaction between institutions, interests and ideas in the policy process in order to ensure the best possible health outcomes. Cross-national policy analysis of oral health policies can be undertaken using a conceptual framework, and the results of this analysis could allow for cross-national lessons to be learnt that could be used to improve policy processes. This could result in improved population oral health service delivery and health outcomes. Aim: To undertake a cross-national policy analysis of a developed country (Australia) and a developing country (South Africa) in order to highlight lessons that could be learnt to improve policy development, implementation, reform and service delivery, that could lead to improved oral healthcare policy-making and provision. Objectives: This study sought to develop, and apply, a conceptual framework to undertake a cross-national comparative policy analysis study of a developed country (Australia) and a developing country (South Africa). This developed conceptual framework would need to allow policy analysts to undertake a comprehensive comparative policy analysis that could lead to an understanding and contextualisation of the complex policy environments found in developed and developing countries. Methods: A cross-national policy analysis of oral health policies for the period 2001-2011 was undertaken. A policy analysis conceptual framework was developed and used to comparatively analyse the various constructs, policy influences and policy actors that were involved in oral health policy-making. Data from a desktop literature search, and key stakeholder interviews were comparatively analysed using thematic content analysis, and a Strengths, Weakness, Opportunities and Threats (SWOT) analysis was used to identify lessons in policy development, implementation and reform that could be applied cross-nationally. Thereafter a Systems Dynamic (SD) computer simulation model was constructed and applied cross-nationally to human resources for health forecasting in order to expound the use of SD modelling in policy development and reform. Results: The results revealed that both countries have policy development and implementation structures that are historically embedded within the countries unique social contexts, and offer lessons regarding their strengths and weaknesses that could be applied cross-nationally to improve healthcare policy-making and provision. The results of the document analysis, together with the interviews and literature review, were triangulated and comparatively analysed using the themes outlined in the conceptual framework. These results revealed that a general policy development theory could be formulated and modified to suit local conditions. The need for high-quality valid and reliable data was also highlighted. Another result is the need for the appropriate needs-based and equitable reallocation of resources in order to ensure a feasible and practical oral healthcare system. Conclusions: The lessons offered from the cross-national oral health policy analysis could be adjusted and implemented to both developed and developing countries in order to improve their oral health policy development, implementation and reform structures and processes

The Effect of Human Resources Practices on Sport Organization’s Performance in Oman: The Mediating Role of Leadership Style

Purpose: This paper examines the impact of human resource management (HRM) practices on organizational performance, with mediating role of leadership style.   Theoretical framework: This study integrates theoretical perspectives on HRM practices Namely (the recruitment selection process, incentive system, and training & development), Leadership style and organisational performance. The conceptual model for this study was developed based on previous research in the field of HRM practices and leadership styles globally. The conceptual model has HRM practices as an independent variable (IV), Leadership style as a mediator and organisational performance as a dependent variable (DV).   Design/Methodology/Approach: A survey questionnaire instrument was employed to collect data from 156 employees working at sport organisations in Oman. SPSS was used for analysing the data, and Smart-PLS were used to test the proposed hypotheses.   Findings: The result revealed that human resource practices are significantly related to organisational performance. Also, leadership styles mediated the influence of HRM practises on organisational performance.   Research, practical & social implications: The finding of this study provides valuable insights into sport organisations in Oman can enhance their HRM practices to improve organisational performance and achieve their goals. Moreover, it has been recommended that organizations use a leadership style that enhances organizational performance. The results come from a cross-sectional study which was done at the convenience of the researcher. The results may not be generalized across the country. The application of the results to other organisations must be done with maximum care.   Originality/Value: This study adds to the literature on the effectiveness of HRM practices, Leadership style in enhancing organisational performance in a specific context namely the sport organisations in Oman. The study also highlights the mediating role of leadership style in the relationship between HRM practices and organisational performance

Survey of Features Extraction and Classification Techniques for Speaker Identification

تكسب تقنيات معالجة الكلام شيوعًا اكثر يومًا بعد يوم لتوفير قدر هائل من الأمان.كما يشيع استخدام الكلام لغرض التوثيق. التعرف على المتكلم هو الطريقة التي يمكن من خلالها فحص المتكلم والتعرف عليه. يختلف نظام التعرف على الكلام عن طريقة التعرف على المتكلم. يشيع استخدام التعرف على المتكلمين في القطاعات والمستشفيات والمختبرات وما إلى ذلك. فوائده أكثر أمانًا وأسهل في التنفيذ وأكثر سهولة في الاستخدام. تعد طريقة تحديد المتكلم واحدة من أكثر التقنيات شيوعًا في المنطقة حيث تعتبر السلامة أمرًا بالغ الأهمية. تقدم هذه المقالة نظرة عامة على الطرق المختلفة التي يمكن استخدامها للتعرف على المتكلمين مثل الترميز الخطي التنبؤي (LPC) ، معاملات الطيف التنبؤية الخطية (LPCC) ، التحويل الحقيقي الفريد المعين (UMRT) ، معاملات Cepstral الحقيقية (RCC) ، "تردد ميل Cepstrum" (MFCC).   بالإضافة إلى مجموعة من المصنفات المختلفة مثل "نموذج الخليط الغاوسي (GMM)"، "تزييف الوقت الديناميكي (DTW)" ، آلة المتجهات الداعمة (SVM) ، الشبكة العصبية (NN) ، "تكميم المتجهات" (VQ). الغرض الأساسي من شرح طرق التعرف على السماعات الشائعة. النتائج التي تم الحصول عليها هي أنه تم اختيار MFCC لكفاءة عالية ومنخفضة التعقيد. و GMM مفيد في تصنيف ذاكرة أقل ونتائج تخطيط واختبار أقل.Speech processing is more common day by day to provide enormous safety. The speech for the purpose of authentication is commonly used. Recognition of the speaker is the method that can check and recognize the speaker. The scheme of speech recognition is distinct from the scheme of speaker recognition. Recognition of speakers is commonly used in sectors, hospitals, laboratories, etc. Its benefits are safer, easier to implement, more user-friendly. Speaker identification method is one of the most commonly used techniques for the region where safety is very crucial. This article presents an overview of various methods that can be used to recognize speakers’ systems, the feature extraction techniques such as Linear Predictive Coding (LPC), Linear Predictive Cepstral Coefficients (LPCC), Unique Mapped Real Transform (UMRT), Real Cepstral Coefficients (RCC), “Mel-frequency Cepstrum” (MFCC), in addition to  various classification techniques such as “Gaussian mixture model (GMM)”, “Dynamic Time Warping (DTW)”, Support Vector Machine (SVM), Neural Network (NN), “Vector Quantization” (VQ). The primary purpose of is to explain the common speaker recognition methods. The obtained results are that, MFCC is chosen for high efficiency and low complexity. and GMM is helpful in classifying less memory and less planning and efficient test results

Dental therapist job satisfaction and intention to leave: A cross-sectional study

Dental therapy is a mid-level oral health profession that was introduced to the South African health system more than four decades ago, during the apartheid era. The purpose for the introduction of this profession was to meet the oral health needs of the underserved majority population1,2,3. However, even with the dismantling of apartheid and the creation of a democratic state, disparities in access to basic oral healthcare persist.1 Local studies have reported limited access to oral health services, especially among the disadvantaged and vulnerable population groups where the highest burden of oral diseases has been reported.4,5,

Epilepsy in the rural areas of sindh: knowledge, beliefs and practices

Unfounded beliefs regarding epilepsy are still common and widespread. Visits to shrines and seeking help from faith healers goes along with thesebeliefs.This creates a major barrier in the timely diagnosis and treatment of epilepsy. Objective: To determine the knowledge, beliefs and practices relating to epilepsy in the rural areas of Sind and how do they differ between educated and uneducated families of patients with epilepsy. Methods: This was an observational study conducted at the Neurology Out-Patient Department of the Peoples Medical University Hospital Nawabshah during the period 1.1.2015 to 30.6.2015. A pro forma was designed incorporating questions pertaining to knowledge,beliefs and practices regarding epilepsy amongpatients and accompanying family members.Each case was considered as representing the whole family.Educational background was ascertainedand the comparison of study variablesbetween educated and uneducated families was evaluated. The questions were translated into their native spoken language (Sindhi). Results: A total of 120 cases were included in this study. Sixty nine (57.7%)were male and 51 (42.5%) were female. Age ranged from 1 to 55 years. Eighty one (67.5%) were the residents of rural villages and 39(32.5%)were residing in Nawabshah and adjoining towns.Of the 120 cases 80 (66.7%)families were educatedand 40 (33.3%) were uneducated. Majority 76 (63.3%) believed that epilepsy is a disease whereas 44(36.7%) considered epilepsy a “super naturalforce” (‘alamaat’: a native term) or possession by a ‘fakir’ (Jinaat). Of the80 educated families 56 (70.0%) had knowledge about the disease and of the 40 uneducated families 20 (50%) had no knowledge about the disease.Better awareness about the disease among families having educational background was statistically significant (p\u3c0.05). Of the 80 educated families 23 (28.8%) visited shrines and of the 40 uneducated families 26 (65.0%)visited shrines. Uneducated families visiting shrines wasstatistically significant (p\u3c0.01). Families having younger individuals (11 -30 years) were more inclined towards visiting shrines. Out of 120 cases 44 (36.6%) were being treated by faith healers (dagho-phenu: a native term for this kind of practice) and 76 (63.%) were receiving medical therapy. Of the 44 cases receiving faith healing 28 (63.6%)also visited shrines and of the 76 caseswho were receiving medical therapy 21 (27.6%) visited shrines.Followers of faith healing practices significantly visited shrines compared to those who were receiving medical therapy (p\u3c0.001). Those who went for faith healing at first place and did not get benefitout of it came to seek medical therapy. They also pledgedfor the strict complianceand thatin future they will not switch over to “other” forms of therapy. Conclusion: Misperceptions about epilepsy are common in the rural areas of Sindh, Possession by a “supernatural force” (Alamaat) was most common belief among those who did not consider epilepsy a disease.Knowledge about epilepsy was better among families having educational background. Uneducation and unawareness leads to unscientific practices like faith healingand visit to shrines. There iswillingness for receiving medical therapy once the proper guidelines are provi

A Visual Identity-Based Approach of Southeast Asian City Branding: A Netnography Analysis

Cities and places had been progressively being marketed as brands by using the concept of ‘City Branding\u27, which is a unique idea. The scholars of ‘City Branding’ believed that the concept of branding helps the city in marketing activities. A city metaphorically could be seen as an entity given the advantage to display its visual characteristics to tourists, visitors, and residents. Unique visual identity such as iconic architecture and graphic design could make a city stands out from the others. Thus, the research examined the role of visual identity in city branding. Specifically, the aim was to contribute to better understanding of the concept of ‘visual identity’ in Southeast Asian cities. Netnography approach was employed to gain better understanding of the notion of visual identity of city branding and refine a conceptual framework that has been developed based on the existing literature. Elements such as iconic structure and graphic design (logo and slogan) of four cities in Southeastern Asia were emphasized. The research concludes that the components of the visual identity of the cities need to be reshaped to be aligned with their visual characteristics in order to boost their competitiveness among the global city brands