825 resultados para The use of robots in education


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This study examined the similarities and differences that currently exist between Chinese and Canadian online higher education, and explored the economic, political, and sociocultural environments that have shaped online education in these two jurisdictions. Furthermore, this paper discussed the efficacy of, and potential for, future development of online learning in higher education in both Canada and China. The research employed a collective case study design to gather information and data on the development of online higher education. The analysis on Contact North in Canada and the One-Man University in China provide a comparative perspective on the development of 2 typical online higher educational institutions in these two countries. The study revealed that the development of online higher education is influenced by the economic, political, and sociocultural factors of environment. Contact North and the One-Man University share similarities in many aspects, but are characteristically different. The Contact North can set an example for establishing and operating a self-regulated MOOCs platform. The study also generated implications for both organizations.

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We derive conditions that must be satisfied by the primitives of the problem in order for an equilibrium in linear Markov strategies to exist in some common property natural resource differential games. These conditions impose restrictions on the admissible form of the natural growth function, given a benefit function, or on the admissible form of the benefit function, given a natural growth function.

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Un résumé en anglais est également disponible.

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Mémoire numérisé par la Division de la gestion de documents et des archives de l'Université de Montréal

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Encephalopathy, brain edema and intracranial hypertension are neurological complications responsible for substantial morbidity/mortality in patients with acute liver failure (ALF), where, aside from liver transplantation, there is currently a paucity of effective therapies. Mirroring its cerebro-protective effects in other clinical conditions, the induction of mild hypothermia may provide a potential therapeutic approach to the management of ALF. A solid mechanistic rationale for the use of mild hypothermia is provided by clinical and experimental studies showing its beneficial effects in relation to many of the key factors that determine the development of brain edema and intracranial hypertension in ALF, namely the delivery of ammonia to the brain, the disturbances of brain organic osmolytes and brain extracellular amino acids, cerebro-vascular haemodynamics, brain glucose metabolism, inflammation, subclinical seizure activity and alterations of gene expression. Initial uncontrolled clinical studies of mild hypothermia in patients with ALF suggest that it is an effective, feasible and safe approach. Randomized controlled clinical trials are now needed to adequately assess its efficacy, safety, clinical impact on global outcomes and to provide the guidelines for its use in ALF.

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Dans une société mondialisée, où les relations sont intégrées à une vitesse différente avec l'utilisation des technologies de l'information et des communications, l'accès à la justice gagne de nouveaux concepts, mais elle est encore confrontée à de vieux obstacles. La crise mondiale de l'accès à la justice dans le système judiciaire provoque des débats concernant l'égalité en vertu de la loi, la capacité des individus, la connaissance des droits, l'aide juridique, les coûts et les délais. Les deux derniers ont été les facteurs les plus importants du mécontentement des individus avec le système judiciaire. La présente étude a pour objet d'analyser l'incidence de l'utilisation de la technologie dans l’appareil judiciaire, avec l'accent sur la réalité brésilienne, la voie législative et des expériences antérieures dans le développement de logiciels de cyberjustice. La mise en œuvre de ces instruments innovants exige des investissements et de la planification, avec une attention particulière sur l'incidence qu'ils peuvent avoir sur les routines traditionnelles des tribunaux. De nouveaux défis sont sur la voie de ce processus de transformation et doivent être traités avec professionnalisme afin d'éviter l'échec de projets de qualité. En outre, si la technologie peut faire partie des différents aspects de notre quotidien et l'utilisation de modes alternatifs de résolution des conflits en ligne sont considérés comme un succès, pourquoi serait-il difficile de faire ce changement dans la prestation de la justice par le système judiciaire? Des solutions technologiques adoptées dans d'autres pays ne sont pas facilement transférables à un environnement culturel différent, mais il y a toujours la possibilité d'apprendre des expériences des autres et d’éviter de mauvaises voies qui pourraient compromettre la définition globale de l'accès à la justice.

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Carboxy Terminated Liquid Natural Rubber (CTNR) was prepared by photochemical reaction using maleic anhydride and masticated natural rubber (NR). The use of CTNR as an adhesive in bonding rubber to rubber and rubber to metal was studied. The peel strengths and lap shear strengths of the adherends which were bonded using CTNR were determined. The effect of using a tri isocyanate with CTNR in rubber to metal bonding was also studied. It is found that CTNR can effectively be used in bonding rubber to rubber and rubber to mild steel.

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Mechanical properties and thermal degradation of natural rubber compounds containing castor oil were studied to evaluate its suitability as plasticizer. Naphthenic oil was used as a reference plasticizer. The cure time was marginally lower in the case of castor oil mixes, probably due to the presence offree fatty acids in it. The tear strength and modulus were better in the case of mixes containing castor oil, while most of the other mechanical properties were comparable to the mixes containing naphthenic oil. The heat build up and compression set were higher than that of the naphthenic oil mixes. Thermal studies showed an increase of 8 °C in the temperature of initiation of degradation and an increase of 6 °C in the temperature at which the peak rate of degradation occurred. The peak rate of degradation was comparable to that of the reference compound

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Mechanical properties and thermal degradation characteristics of natural rubber compounds captaining coconut oil were compared with that of a control compound containing naphthenic oil. Cure time was marginally lower in the case of coconut oil mixes, probably due to the presence of free fatty acids. Tensile strength , tear strength, resilience and abrasion resistance were better than the naphthenic oil-based compounds . Compression set and hardness were marginally inferior The coconut oil mixes had a crosslink density comparable to that of the reference compound. Thermal studies showed that the temperature of initiation of degradation was increased by 10°C and the temperature at which the peak rate of degradation occured was increased by 7°C. The peak rate of degradation was compa rable to the control compound.

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Usage of a dielectric multilayer around a dielectric Sample is studied as a means for improving the efficiency in multimode microwave- heating cavities. The results show that by using additional dielectric constant layers the appearance of undesired reflections at the sample-air interface is avoided and higher power -absorption rates within the sample and high -efficiency designs are obtained

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Department of Applied Chemistry, Cochin University of Science and Technology

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Department of Polymer Science and Rubber Technology, Cochin University of Science and Technology