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ما الذي تسبب في انقراض القرش عملاق البحار ؟
وجد الباحثون بعد تحليل أسنان متحجرة عمرها 7 ملايين عام أن القرش العملاق، أحد أضخم كائنات المحيطات، كان يفضل أكل الحيتان الصغيرة فقط مما أدى إلى انقراضه قبل نحو 2.6 مليون سنة.
علماء روس وجدوا بديلا للبلاتين
أورد المكتب الصحفي لجامعة نوفوسيبيرسك الحكومية ومعهد الكيمياء غير العضوية أن علماء كيمياء من المنشأتين المذكورتين ابتكروا محلولا صلبا من الكوبلت والايريديوم.
Villains and vixens dominate cartoon roles for women
(AP) — More women are entering the field of animation, and one of their goals is to create more realistic female characters — not just the stereotypical nerds, sex bombs and villains that dominate now. Here's a look at four of the main ones, depicted by a female student at the California Institute of the Arts and explained by Erica Larsen-Dockray, who teaches a class on "The Animated Woman" for the school's experimental animation program. Big eyes, flowing locks, luscious lips and a heart-shaped face. About the typical princess' waistline, Larsen-Dockray says: "If they were life-size, they would not have space in their bodies for reproductive organs." While male villains can be any shape or size, female villains almost always are old and unmarried.
Strengthening collaboration and communication skills in an online TPD program for 21st-century educators
The profile of the 21st-century teacher should reflect the philosophy of lifelong and adaptive learners who never stop enriching their knowledge, upgrading their skills and re-calibrating their career paths. To achieve such goals, many academic institutions implement teacher professional development (TPD) programs to support the professional development of the educational community. The goal of our research is to design an online TPD program which allocates roles and activities to learners and manages their progression through both in order to maximise the learning benefits. To this end, a PBLJii script orchestrated in line with the principles of a PBL model and the Jigsaw II collaborative strategy in a CSCL environment (Moodle) was designed and implemented to bolster collaboration and communication skills among teachers. Case study research (examination of one group) was conducted in a number of primary schools in Greece. There was both a quantitative and a qualitative analysis of the chat and forum messages exchanged by the inservice teachers and the results revealed significant development of their collaboration and communication skills as a result of their participation in collaborative tasks.
The roles of technology acceptance and computer learner aptitude on accounting student learning achievement with IDEA software
Technology is pervasive in the accounting profession. Successful auditors must be able to use current computer auditing techniques (CAATs). Learning to use these technologies as part of a college accounting curriculum can help ensure new accounting graduates are equipped to participate in all phases of audits from the start of their careers. However, some students learn course-specific technology more easily than others. Our study investigates the roles that student technology acceptance and aptitude for learning technology play in student comprehension of the auditing software IDEA. While prior research has shown that technology acceptance and aptitude for learning technology both are relevant to technology adoption decisions of organisations, prior research has not applied these models to teaching and learning technology. We found that students' perceptions about the ease of use of IDEA, its usefulness, and their intent to use IDEA in their future careers all have significant impacts on their computer learning aptitude. We also found that computer learning aptitude impacted student learning. When students believed their aptitude for learning technology was higher, they showed higher achievement in using IDEA.
Linking megaprojects for local technological capability development in developing countries - a literature review
Complex megaprojects, costing above $1 billion, gained significant research interest from their engineering, management, complexity, risks and other perspectives. For developing economies especially, they present significant learning opportunity to build technological capability with interaction of local firms with international contractors. Using scholarly articles review, the present paper reviewed past literature, enlightening gap observed and the linkage demanded between megaprojects and their potential for technological capability development. Results indicate that past researches have not given emphasis to investigate technological capability development through megaprojects executed in developing countries. After discussion on relevant subtopics, the gaps to be filled and link the two topics are elaborated individually. Conclusions drawn are directed towards new research paradigm that investigates opportunities that have priceless contribution for developing economies.
Innovation management framework: case studies of firms in Thailand
The aim of this paper is to develop a framework of relevant factors of innovation management that will help firms avoid failures in innovation projects in developing country, Thailand. This paper conducted literature review of innovation management models, and analysed the contextual factors from the largest four conglomerates in Thailand that were driven by innovation policy through in-depth semi-structure interviews and observations. The factors were criticised and weighted on whether they are relevant and critical to the innovation management to generate a proposed framework. A quantitative based instrument in the form survey questionnaire is used as research instrument. The item content validity was subsequently applied to verify the instrument. Finally, a survey of 325 samples from firms in Thailand was conducted. This research develops a framework of relevant factors presents a comprehensive innovation management framework for innovation manager and policy maker.
Expansion of science-based industries: technological and organisational accumulation vs. fragmentation? Insights from biotechnology in Estonia
The governance of high-technology areas poses considerable strategic challenges to transition and developing countries. This study aims to emphasise the importance of the local context as a root of systemic problems from a new perspective. The specific interest concerns the developments in the field of biotechnology in one of the CEE countries, Estonia. The in-depth analysis of Estonia's case reveals parallel but contradictory tendencies at the local level. Whereas the expansion of the industry (increasing number of start-ups) is converging around the limited major players in the field, the convergence at the organisational level reflects the orientation taken on risk management strategies (as derived from the management of a common structure) rather than R&D-intensive synergies and specialisations. The appropriateness of innovation support measures in use and the respective policy-making capabilities (with specific interest in the usage and the impact of the EU Structural Funds) make the issue even more constrained. Hence, the case of Estonia demonstrates the dysfunction of the local innovation management and governance mechanisms and its adverse effect on the sector's long-term performance.
Constructivist research framework for integrating indigenous knowledge into computing education
Some computing educators, especially in African context, have been interested in pedagogical strategies that cultural heritage can provide viable mental models to enhance teaching and learning in curriculum. Particularly, students from Africa have rich cultural heritage that provides new ways of conceptualising computing principles. It is essential that literature provides framework that explains pedagogical benefits of indigenous knowledge in computing education. We analysed scientific publications related to computing education by systematically reviewing the article from constructivist perspectives on students learning from cultural heritage. The study reveals that constructivist philosophical assumptions of multiple meanings to reality and subjectivity in knowledge construction are compatible with the main objective in ethnocomputing studies that seeks to contextualise computing principles in cultural heritages.
Medium as frame: comparing mobile audio and video interactions in informal learning contexts
Concept-driven interaction design opens new pathways for research of information and communication technologies (ICTs) in educational contexts, between the particulars of a case study and the abstractions of theory. Explorative research in this project tested foundational theoretical ideas, such as medium specificity, through concrete designs in an authentic setting. During these separate but similar procedures, conducted a year apart, ordinary users were given representative tasks on mobile devices in order to examine the levels of involvement, social facilitation, and satisfaction generated by differing media forms within the mobile delivery system. From this perspective, direct comparisons could be made, for example, between audio and video forms. Enabling such comparisons has grown in importance with the advent of mobile and other convergent technologies that blend mediums to bring together media organisms to comingle. In the case of a smartphone, for example, mobile media designers now can choose which medium (text, audio, video, animation, etc.) they want to use within their master medium, which adds to the complexity of the design endeavour but also to the potential for new integrated and interactive forms to emerge as well as for more mindful context-tailored solutions.
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