There is, I think, something ethereal about i —the square root of minus one. I remember first hearing about it at school. It seemed an odd beast at that time—an intruder hovering on the edge of reality.

Usually familiarity dulls this sense of the bizarre, but in the case of i it was the reverse: over the years the sense of its surreal nature intensified. It seemed that it was impossible to write mathematics that described the real world in …

I and i

The Object Management Group's (OMG) Model Driven Architecture (MDA) strategy envisages a world where models play a more direct role in software production, being amenable to manipulation and transformation by machine. Model Driven Engineering (MDE) is wider in scope than MDA. MDE combines process and analysis with architecture. This article sets out a framework for model driven engineering, which can be used as a point of reference for activity in this area. It proposes an organisation of the modelling 'space' and how to locate models in that space. It discusses different kinds of mappings between models. It explains why process and architecture are tightly connected. It discusses the importance and nature of tools. It identifies the need for defining families of languages and transformations, and for developing techniques for generating/configuring tools from such definitions. It concludes with a call to align metamodelling with formal language engineering techniques.

Model Driven Engineering

House of Quality

http://www.parkjonghyuk.net/lecture/2015-1st-lecture/networksecurity/Paper2.pdf

Security in cloud computing

Introducing Focus Groups

Introduction Humans have different ways of learning. Some can assimilate in a better way the knowledge received visually, auditory or through a certain sense. Psychology and cognitive sciences have longtime explored this question. The Dual Coding Theory for example states that information is processed through one of two usually independent channels (Beacham et al., 2002). While one channel processes verbal information such as text or audio, the other one processes visual information like diagrams, images, animations, etc. The Sperry's Nobel Prize winning left-brain / right-brain model of thinking suggested that the right hand side and the left hand side of our brain possessed specialized and differentiated functions (Dervan, et al. 2006). The left cerebral hemisphere is thought to be more verbal, logical or clinical, that is, more analytical, while the right cerebral hemisphere influences more the artistic and the sensing side of our intellectual. Powerful encoding and visualization techniques have shown to enable the creation lasting memory and improve recall. Dual encoding, for example, has proven to be an extremely effective learning tool. The simplest and most common form of which involves presenting the information both textually and visually. "Whole brain" learning is known to be a far more effective way to learn. The better connected the two halves of the brain, the greater the potential of the brain for learning and creativity (Rose, 1998; Dervan, et al. 2006). However, most educational systems have ignored individual differences that exist between learners, such as the learning ability, the background knowledge, the learning goals and the learning style (Ford & Chen, 2001). Educational systems generally provide a unique and standardized teaching material to all learners which tend to benefit to those whose learning style and background knowledge fits well with the teaching material. If the teaching style employed closely matches the student preferred style of acquiring knowledge, learning becomes easier and more natural, results improve and learning time is reduced (Rose, 1998). On the other hand, if for example a student is more visual than verbal and everything is written on the blackboard without auditory resources, student will experience difficulties in attaining the pedagogical goals in the requested time. In few words, traditional teaching material and strategies generally tend to benefit some students more than others. In this sense, it is necessary to deploy resources to support the learning process in a way that it not only suits the characteristics of a few, but that it adapts to the characteristics of each student. In the context of Information Technology evolution and the availability of large number of electronic media, the idea of matching e-media with appropriate teaching and learning styles has been explored since the late 90's. There are many studies on the effectiveness of combining multimedia and hypermedia with learning styles in educational systems (Najjar, 1996) (Liao, 1999). They attempt to associate specific e-media characteristics to different categories of learners and propose instruments and methods for assessing learning style (Riding & Rayner, 1998). Most of these studies rely on Kolb's Learning Styles Inventory (LSI) (Kolb 1984) and Soloman-Felder Index of Learning Styles (ILS) (Soloman, & Felder, 1993). However, very few researchers give an idea of which appropriate combinations of electronic media and learning styles are more effective than others. An electronic media can be used in different ways to implement different teaching strategies which can be matched with different learning styles. For example, a discussion forum can be used in different ways. It can be used to assign a practical task to students in such a way that students solve the assigned problem in a collective manner. This fits well with sensitive learning style. The discussion forum can also be used to give a sequential series of theoretical presentations to students who can interact with the teacher. …

Student Learning Styles Adaptation Method Based on Teaching Strategies and Electronic Media.

Cloud computing security is a broad research domain with a large number of concerns, ranging from protecting hardware and platform technologies to protecting clouds data and resource access (through different end- user devices). Although the advantages of cloud computing are tremendous, the security and privacy concerns of cloud computing have always been the focus of numerous cloud customers and impediment to its widespread adaptation by businesses and organizations. The paper presents a systematic literature review in the field of cloud computing with a focus on risk assessment. This would help future research and cloud users/business organizations to have an overview of the risk factors in a cloud environment. And to proactively map their indigenous needs with this technology.

/pdf/cloud-computing-risk-assessment-a-systematic-literature-1wfldjb0gu.pdf

Cloud Computing Risk Assessment: A Systematic Literature Review

Recent research on the learning process has shown that students tend to learn in different ways and that they prefer to use different teaching resources as well. Many researchers agree on the fact that learning materials shouldnpsilat just reflect of the teacherpsilas style, but should be designed for all kinds of students and all kind of learning styles. Even though they agree on the importance of applying these learning styles to different learning systems, various problems still need to be solved, such as matching teaching contents with the student's learning style. In this paper, we describe the design of a personalized teaching environment that is based on an adaptive taxonomy using Felder and Silverman's learning styles and which is combined with the selection of the appropriate teaching strategy and the appropriate electronic media. Students are able to learn and to efficiently improve their learning process with such method.

/pdf/student-learning-styles-adaptation-method-based-on-teaching-198ovqfkml.pdf

Student Learning Styles Adaptation Method Based on Teaching Strategies and Electronic Media

Wireless Body Area Networks (WBANs) have emerged as a promising technology that has shown enormous potential in improving the quality of healthcare, and has thus found a broad range of medical applications from ubiquitous health monitoring to emergency medical response systems. The huge amount of highly sensitive data collected and generated by WBAN nodes requires an ascendable and secure storage and processing infrastructure. Given the limited resources of WBAN nodes for storage and processing, the integration of WBANs and cloud computing may provide a powerful solution. However, despite the benefits of cloud-assisted WBAN, several security issues and challenges remain. Among these, data availability is the most nagging security issue. The most serious threat to data availability is a distributed denial of service (DDoS) attack that directly affects the all-time availability of a patient's data. The existing solutions for standalone WBANs and sensor networks are not applicable in the cloud. The purpose of this review paper is to identify the most threatening types of DDoS attacks affecting the availability of a cloud-assisted WBAN and review the state-of-the-art detection mechanisms for the identified DDoS attacks.

Distributed Denial of Service (DDoS) Attack in Cloud- Assisted Wireless Body Area Networks: A Systematic Literature Review

Nelson Mandela, former South African President and Noble Laureate, observed that, Education is the most powerful weapon which you can use to change the world He left unanswered two questions: Why do we want to change the world, and What is it that needs to be changed The articles in this special issues address the questions of how ICTs can enable education to change or improve the lives of people, important educational goals in all parts of the world, but particularly so in developing regions and underserved communities

https://hal.archives-ouvertes.fr/hal-00529533/document

Saïd Assar

Papers

Student Learning Styles Adaptation Method Based on Teaching Strategies and Electronic Media.

Cloud Computing Risk Assessment: A Systematic Literature Review

Student Learning Styles Adaptation Method Based on Teaching Strategies and Electronic Media

Distributed Denial of Service (DDoS) Attack in Cloud- Assisted Wireless Body Area Networks: A Systematic Literature Review

ICT and education : a critical role in human and social development