128,044 research outputs found
'5 Minutes With Matt': the Innovative use of Micro Video Blogging in Higher Education
Recent developments in online learning platforms and associated technologies have changed the dynamics of higher education by forcing practitioners to reconsider traditional assumptions of teaching and learning (Garrison & Kanuka, 2004). This has fundamentally changed the nature and parameters of pedagogy within higher education whilst also shifting the associated expectations of students (HEA, 2000). Today, face-to-face teaching alone is considered somewhat antiquated; instead an effective higher education practitioner is now someone who can draw upon a myriad of blended learning strategies (see HEFCE, 2009). Because of this, the author of this paper contends that it is a fundamental responsibility of higher education practitioners today to be responsive to such changes and to continually seek ways of innovatively ‘blending’ traditional face-to-face methods of teaching and learning with new technologies and online platforms. In this vein, this short paper provides an example of how micro-video-blogging has been used as a blended learning tool within a social science programme
Hadwiger Integration of Random Fields
Hadwiger integrals employ the intrinsic volumes as measures for integration
of real-valued functions. We provide a formula for the expected values of
Hadwiger integrals of Gaussian-related random fields. The expected Hadwiger
integrals of random fields are both theoretically interesting and potentially
useful in applications such as sensor networks, image processing, and cell
dynamics. Furthermore, combining the expected integrals with a functional
version of Hadwiger's theorem, we obtain expected values of more general
valuations on Gaussian-related random fields
Book Review: Grit: The Power of Passion and Perseverance
I first stumbled across the research of Angela Duckworth after she was awarded the prestigious MacArthur Fellowship in 2013 for her work investigating the character traits that impact the achievement of long-term goals. So, when it was announced that she would be publishing a book in 2016, I immediately pre-ordered copy so that I could dig into her insights as soon as possible. When I received my copy of Grit: The Power of Passion and Perseverance in the mail, I was excited to crack it open… and then the self-doubt settled in. “What if, after reading the brilliant ideas of a scholar whom I highly regard, I realize that I have no grit… What if I don’t have what it takes?” I was terrified. But, I am convinced that I am not alone. In our current educational culture, one that reinforces a transactional ideology that success is unequivocally defined by test scores and GPA, what is one to do if they literally do not “measure up” to the competition? Is that the end of the road? Is success forever out of reach
Application of a PC based, real-time, data-aquisition system in rotorcraft wind-tunnel testing
Data has been acquired for a rotocraft test in the NASA Langley Transonic Dynamics Tunnel using a desktop data acquisition system. The system, which consists of an IBM Personal Computer AT (PC-AT) and an Omega Engineering OM-900 Stand-Alone Interface System, is well suited for acquiring high speed data on a limited number of channels. The data acquisition system and the interrupt driven software which provides the capability for near real-time cyclic data acquisition as well as data storage and display are described
On Quantifying Dependence: A Framework for Developing Interpretable Measures
We present a framework for selecting and developing measures of dependence
when the goal is the quantification of a relationship between two variables,
not simply the establishment of its existence. Much of the literature on
dependence measures is focused, at least implicitly, on detection or revolves
around the inclusion/exclusion of particular axioms and discussing which
measures satisfy said axioms. In contrast, we start with only a few
nonrestrictive guidelines focused on existence, range and interpretability,
which provide a very open and flexible framework. For quantification, the most
crucial is the notion of interpretability, whose foundation can be found in the
work of Goodman and Kruskal [Measures of Association for Cross Classifications
(1979) Springer], and whose importance can be seen in the popularity of tools
such as the in linear regression. While Goodman and Kruskal focused on
probabilistic interpretations for their measures, we demonstrate how more
general measures of information can be used to achieve the same goal. To that
end, we present a strategy for building dependence measures that is designed to
allow practitioners to tailor measures to their needs. We demonstrate how many
well-known measures fit in with our framework and conclude the paper by
presenting two real data examples. Our first example explores U.S. income and
education where we demonstrate how this methodology can help guide the
selection and development of a dependence measure. Our second example examines
measures of dependence for functional data, and illustrates them using data on
geomagnetic storms.Comment: Published in at http://dx.doi.org/10.1214/12-STS405 the Statistical
Science (http://www.imstat.org/sts/) by the Institute of Mathematical
Statistics (http://www.imstat.org
Performance Monitoring of Control Systems using Likelihood Methods
Evaluating deterioration in performance of control systems using closed loop operating data is addressed. A framework is proposed in which acceptable performance is expressed as constraints on the closed loop transfer function impulse response coefficients. Using likelihood methods, a hypothesis test is outlined to determine if control deterioration has occurred. The method is applied to a simulation example as well as data from an operational distillation column, and the results are compared to those obtained using minimum variance estimation approaches
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