2,287 research outputs found

    Muonless Events in ICAL at INO

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    The primary physics signal events in the ICAL at INO are the νμ{\nu}_{\mu} charged current (CC) interactions with a well defined muon track. Apart from these events, ICAL can also detect other types of neutrino interactions, i.e. the electron neutrino charged current interactions and the neutral current events. It is possible to have a dataset containing mostly νe{\nu}_eCC events, by imposing appropriate selection cuts on the events. The νμ{\nu}_{\mu} CC and the neutral current events form the background to these events. This study uses the Monte Carlo generated neutrino events, to design the necessary selection cuts to obtain a νe{\nu}_e CC rich dataset. An optimized set of constraints are developed which balance the need for improving the purity of the sample and having a large enough event sample. Depending on the constraints used, one can obtain a neutrino data sample, with the purity of νe{\nu}_e events varying between 55% to 70%.Comment: 21 pages, 6 figure

    The fractional integrated bi- parameter smooth transition autoregressive model

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    This paper introduces the fractionally integrated Bi-parameter smooth transition autoregressive model (FI-BSTAR model) as an extension of BSTAR model proposed by Siliverstovs (2005) and the fractionally integrated STAR model (FI-STAR model) proposed by van Dijk et al. (2002). Our FI-BSTAR model is able to simultaneously describe persistence and asymmetric smooth structural change in time series. An empirical application using monthly growth rates of the American producer price index is provided.Long Memory, Nonlinearity, Asymmetry, STAR models.

    Using Infographics to Report Research Results

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    This article feature the results of a nation-wide survey of over 100 academic law libraries in the US regarding their staffing and information technology management. The IT Staffing and Services Survey was originally created by Ann E. Pucket, former professor and director of the University of Georgia School of Law Alexander Campbell King Law Library. It was last updated by Professor Carol Watson in 2010. The 2015 survey results demonstrate how law school information technology management has shifted from being directly managed by law libraries to a more complicated model where collaboration is the key. However, law libraries remain deeply involved with end-user training and instructional technologies. The accompanying infographic features a geographic distribution of schools participating in the survey, average full-time employees dedicated to IT, number of schools in a shared services agreement, as well as responsibilities for various IT domains and services

    Wearable Technologies in Academic Libraries: Fact, Fiction and the Future

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    Chapter 7 of Canuel, R & Crischton, C (2017). Mobile Technology and Academic Libraries: Innovative Services for Research and Learning. Chicago, IL. ACRL. Nick Moline, a developer and early Google Glass Explorer, can still recall Google’s mantra when he was first introduced to the wearable device: “If you can bring technology closer to you, you can actually get it out of the way” (Moline, personal communication, December 29, 2015). Similarly, Steve Mann, a researcher and inventor widely known as the father of wearable computing once wrote that “miniaturization of components has enabled systems that are wearable and nearly invisible, so that individuals can move about and interact freely, supported by their personal information domain” (Nichol, 2015). Today’s wearable devices are the continuation and evolution of decades of research and development. This transition began with devices designed to be worn as backpacks, such as the 6502 multimedia computer designed by Steve Mann in 1981, evolved to a one-handed keyboard and mouse connected to a head-mounted display produced in 1993, and then advanced further into a wrist computer made available the next year. The first commercially available wearable device, however, was the Trekker, a 120 MHz Pentium computer with support for speech and a head-mounted display, which sold for $10,000 (Sultan, 2015). These early wearable devices, however, were characterized by limited functionality and bulky design. By the mid 2010s, fitness tracker devices emerged with their attractive designs targeting sport and fitness enthusiasts. More recent fitness trackers blend smartwatches with multiple other functionalities, combining health and activity monitoring as well as networking capabilities. There are many factors that contributed to the rapid proliferation of wearable devices in the last five years. These factors include the advent of more reliable Internet access; the ubiquity of smartphones; decline in cost of sensors, cameras, and processing power; and finally, a flourishing app ecosystem (Mind Commerce, 2014)

    The quaternionic commutator bracket and its implications

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    A quaternionic commutator bracket for position and momentum shows that the quaternionic wave function, \emph{viz.} ψ~=(icψ0,ψ)\widetilde{\psi}=(\frac{i}{c}\,\psi_0\,,\vec{\psi}), represents a state of a particle with orbital angular momentum, L=3L=3\,\hbar, resulting from the internal structure of the particle. This angular momentum can be attributed to spin of the particle. The vector ψ\vec{\psi}, points along the direction of L\vec{L}. When a charged particle is placed in an electromagnetic fields the interaction energy reveals that the magnetic moments interact with the electric and magnetic fields giving rise to terms similar to Aharonov-Bohm and Aharonov-Casher effects.Comment: 8 page
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