As they emerge from the pandemic, universities worldwide are evaluating the adaptations in the education sector during the pandemic and determining their course of action for the future. In this work, drawing on the lessons from four courses across two different universities, a survey of over 300 students, and the literature, we present strategies for successfully implementing a flexible blended education format. The survey revealed that the performance of the cohort taking the course during the pandemic performed nearly the same as the cohorts that took the courses before the pandemic. However, the students did not prefer an entirely virtual format, felt that their social wellbeing was impacted, and preferred a hybrid education model with a lot of supplementary learning material. As a key contribution of this work, we have identified and elaborate on four key pillars for a flexible blended education format, namely, course design, pedagogical strategies incorporating active learning and providing a sense of online community, infrastructure for delivery and training, and incorporating activities that support student wellbeing.
Key management is a central problem in information security. The development of quantum computation could make the protocols we currently use unsecure. Because of that, new structures and hard problems are being proposed. In this work, we give a proposal for a key exchange in the context of NIST recommendations. Our protocol has a twisted group ring as setting, jointly with the so-called decomposition problem, and we provide a security and complexity analysis of the protocol. A computationally equivalent cryptosystem is also proposed.
EDITH BULBRINGPre-eminent among contemporary hypotheses concerning the mode of action of anesthetics on nerve cells is one which supposes that the depressant effects of these substances are due to an interference with cellular metabolism. This interference is assumed to result from inactivation of certain enzymes, which are as yet only partly identified. It is appropriate that this hypothesis receive extensive consideration and test a t a time when considerable effort is being devoted to elucidation of the role of enzymes in controlling the chemical reactions and functional properties of living cells.Experimental evidence that anesthetics interfere with metabolism has been obtained mostly from measurements of oxygen consumption. The observations of Quastel and his colleagues, and subsequent confirmations and extensions by other laboratories, have abundantly demonstrated that a wide
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