44,877 research outputs found
Measurement of WZ and ZZ production in pp collisions at 8 TeV in final states with b-tagged jets with the CMS experiment
In this note we present a measurement of the VZ (V=W,Z) production cross
section in proton-proton collisions at 8 TeV in the
VZV decay mode with VZ,), VW, (). The
results are based on data corresponding to an integrated luminosity of 18.9
fb collected with the CMS experiment. The process is observed for the
first time in this particular final state with a significance exceeding six
standard deviations (). The measured cross sections are consistent with
the predictions of NLO calculations.Comment: 4 pages, 8 figures, proceeding for the Moriond 2014 EW sessio
Singularities of slice regular functions
Beginning in 2006, G. Gentili and D.C. Struppa developed a theory of regular
quaternionic functions with properties that recall classical results in complex
analysis. For instance, in each Euclidean ball centered at 0 the set of regular
functions coincides with that of quaternionic power series converging in the
same ball. In 2009 the author proposed a classification of singularities of
regular functions as removable, essential or as poles and studied poles by
constructing the ring of quotients. In that article, not only the statements,
but also the proving techniques were confined to the special case of balls
centered at 0. In a subsequent paper, F. Colombo, G. Gentili, I. Sabadini and
D.C. Struppa (2009) identified a larger class of domains, on which the theory
of regular functions is natural and not limited to quaternionic power series.
The present article studies singularities in this new context, beginning with
the construction of the ring of quotients and of Laurent-type expansions at
points other than the origin. These expansions, which differ significantly from
their complex analogs, allow a classification of singularities that is
consistent with the one given in 2009. Poles are studied, as well as essential
singularities, for which a version of the Casorati-Weierstrass Theorem is
proven.Comment: 25 pages, 1 figur
Displaying Lives: the Narrative of Objects in Biographical Exhibitions
Biographical exhibitions are a museum practice that asks for critical consideration. Grounding the argument in critical theory, social studies and museum theory, the article explores the narrative function of objects in biographical exhibitions by addressing the social significance of objects in relation to biography and their relevance when presented into an exhibition display. Central is the concept of objects as âbiographical relicsâ that are culturally fetishized in biographical narratives. This raises questions about biographical reliability and the cultural role that such objects plays in exhibition narratives as bearers of reality and as metonymical icons of the biographical subject. The article considers examples of biographical exhibitions of diverse figures such as Gregor Mendel, Madame de Pompadour and Roland Barthes, and the role that personal items, but also portraits and photographs, play in them
College Student Perceptions of ADHD: Links Between Prior Knowledge and Stigma
Attention deficit hyperactivity disorder (ADHD) is characterized by persistent inattention, which might or might not accompany hyperactivity and impulsivity, that noticeably interferes with functioning and development in at least two settings. It is a commonly diagnosed childhood mental health disorder. Public knowledge and attitudes towards ADHD are an important consideration for those who are going to potentially be working with that population. Research has shown older children and parents may attribute ADHD behavior to poor social skills or immaturity. Teachers often report feeling unprepared to have a student with ADHD and would like more training. Some research has shown the perpetuation of common misconceptions of ADHD by parents and teachers. This research sought to determine if there was a correlation between knowledge of ADHD and stigma towards individuals with ADHD and to determine if students majoring in psychology differed from their peers on knowledge about ADHD or attitudes towards individuals with ADHD. After surveying 131 students from a faith-based, private university in Virginia, it was found that those majoring in psychology did not have significant differences in knowledge of ADHD or stigma towards people with ADHD when compared to students in other majors. Both knowledge and stigma scores were high across groups and no significant correlation between knowledge and attitudes was found. Findings have implications for university students diagnosed with ADHD and administrators working to reduce the stigma of ADHD on campus
The Constraint Equations in the Presence of a Scalar Field - the Case of the Conformal Method with Volumetric Drift
In this paper we establish the existence in low dimensions of solutions to
the constraint equations in the case of the conformal system recently proposed
by David Maxwell, with the added presence of a scalar field and under suitable
smallness assumptions on its parameters.Comment: 46 page
Introduction: food relocalisation and knowledge dynamics for sustainability in rural areas
The chapter presents the literature on local food and local knowledge and introduces the case studies analysed in the volum
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