2,353 research outputs found
Flying not flapping: a strategic framework for eâlearning and pedagogical innovation in higher education institutions
Eâlearning is in a rather extraordinary position. It was born as a âtoolâ and now finds itself in the guise of a somewhat wobbly arrow of change. In practice, changing the way thousands of teachers teach, learners learn, innovation is promoted and sustainable change in traditional institutions is achieved across hundreds of different disciplines is a demanding endeavour that will not be achieved by learning technologies alone. It involves art, craft and science as well as technology. This paper attempts to show how it might be possible to capture and model complex strategic processes that will help move the potential of eâlearning in universities to a new stage of development. It offers the example of a fourâquadrant model created as a framework for an eâlearning strategy
DISCUSSION
This article appeared in the Discussion Section. Gilly Salmon's reply to the criticisms of the five-stage model for e-learning
Pengujian RESTful API Pada Website Monitoring Kartu Santri Menggunakan Metode Equivalence Partitions
Pesantren Go Digital is an initiative by PT Telkom Indonesia to digitize the boarding school segment in Indonesia. One of the digital solutions developed is Kartu Santri, a cashless transaction service integrated with electronic money. However, the development of the Santri Card Monitoring website is still ongoing, and the API's performance is crucial for ensuring the website's features function properly. API performance sometimes encounters challenges, such as server failures, accuracy issues with retrieved data, or responses that do not align with the sent requests. This research aims to test the API's quality and functionality on the Santri Card Monitoring website using the Black Box Testing Equivalence Partitions method. This method allows detailed testing by determining valid and invalid data boundaries. The testing was conducted using the Postman tool, with results showing the API's effectiveness at 71,25% in the first iteration, which increased to 100% after improvement. Consequently, the RESTful API of the Santri Card Monitoring website was deemed "Very Good," with the improvements significantly enhancing its effectiveness. In conclusion, the Black Box Testing Equivalence Partitions method proves highly effective for testing API performance, contributing to the improved quality and functionality of the Santri Card Monitoring website in Pesantren Go Digital
Bubble Baryogenesis
We propose an alternative mechanism of baryogenesis in which a scalar baryon
undergoes a percolating first-order phase transition in the early Universe. The
potential barrier that divides the phases contains explicit B and CP violation
and the corresponding instanton that mediates decay is therefore asymmetric.
The nucleation and growth of these asymmetric bubbles dynamically generates
baryons, which thermalize after percolation; bubble collision dynamics can also
add to the asymmetry yield. We present an explicit toy model that undergoes
bubble baryogenesis, and numerically study the evolution of the baryon
asymmetry through bubble nucleation and growth, bubble collisions, and washout.
We discuss more realistic constructions, in which the scalar baryon and its
potential arise amongst the color-breaking minima of the MSSM, or in the
supersymmetric neutrino seesaw mechanism. Phenomenological consequences, such
as gravitational waves, and possible applications to asymmetric dark-matter
generation are also discussed.Comment: 15 pages, 13 figures, references added, changes reflect published
versio
Building institutional capability in e-learning design
We detail the research, development and initial outcomes of an intervention process to promote capability building in designing for eâlearning at a dual mode university in the UK. The process, called CARPE DIEM, was built on a pilot study and became a Higher Education Academy âPathfinderâ project named ADELIE. We report on the model workshop, its deployment, research and development over a 12âmonth period with a variety of subject groups working in small teams with learning technologists, pedagogical facilitators and librarians. Outcomes include improved scores on an institutional eâlearning benchmarking exercise and increased capability for designing for online activities for students in the Virtual Learning Environment (VLE). The model is stable enough to be tried in other institutions and continues to develop in scope
Gravitino Freeze-In
We explore an alternative mechanism for the production of gravitino dark
matter whereby relic gravitinos originate from the decays of superpartners
which are still in thermal equilibrium, i.e. via freeze-in. Contributions to
the gravitino abundance from freeze-in can easily dominate over those from
thermal scattering over a broad range of parameter space, e.g. when the scalar
superpartners are heavy. Because the relic abundance from freeze-in is
independent of the reheating temperature after inflation, collider measurements
may be used to unambiguously reconstruct the freeze-in origin of gravitinos. In
particular, if gravitino freeze-in indeed accounts for the present day dark
matter abundance, then the lifetime of the next-to-lightest superpartner is
uniquely fixed by the superpartner spectrum.Comment: 5 pages, 3 figure
Direct Detection Signals from Absorption of Fermionic Dark Matter
We present a new class of direct detection signals; absorption of fermionic
dark matter. We enumerate the operators through dimension six which lead to
fermionic absorption, study their direct detection prospects, and summarize
additional constraints on their suppression scale. Such dark matter is
inherently unstable as there is no symmetry which prevents dark matter decays.
Nevertheless, we show that fermionic dark matter absorption can be observed in
direct detection and neutrino experiments while ensuring consistency with the
observed dark matter abundance and required lifetime. For dark matter masses
well below the GeV scale, dedicated searches for these signals at current and
future experiments can probe orders of magnitude of unexplored parameter space.Comment: 7 pages, 2 figures. v2: published in PRL with minor revisions and
changes to Fig 2 (no change to results
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