10,323 research outputs found
Notes from Mrs. Hadgu\u27s Class: Conceptualizing Music Education Curriculum for a Changing World
How can we conceptualize curriculum and school knowledge to better address important questions of social change, contingency of knowledge, life in mediated worlds, and inequalities? To answer this question I wrote fictional stories from students about their favorite moments from their 8th grade music class. Each account deals with a specific activity or instance in which the teacher included social change and/or student centered knowledge in the curriculum. The explanation at the end of the accounts details the reasons for creating each activity and the relation of the stories to texts utilized in class
Characterizing a benchmark scenario for heavy Higgs boson searches in the Georgi-Machacek model
The Georgi-Machacek model is used to motivate and interpret LHC searches for
doubly- and singly-charged Higgs bosons decaying into vector boson pairs. In
this paper we study the constraints on and phenomenology of the "H5plane"
benchmark scenario in the Georgi-Machacek model, which has been proposed for
use in these searches. We show that the entire H5plane benchmark is compatible
with the LHC measurements of the 125 GeV Higgs boson couplings. We also point
out that, over much of the H5plane benchmark, the lineshapes of the two CP-even
neutral heavy Higgs bosons and will overlap and interfere when
produced in vector boson fusion with decays to or . Finally we
compute the decay branching ratios of the additional heavy Higgs bosons within
the H5plane benchmark to facilitate the development of search strategies for
these additional particles.Comment: 18 pages, 18 figures. v2: title changed, refs added, discussion
clarified, version accepted by PR
Magnetic properties of the Anderson model: a local moment approach
We develop a local moment approach to static properties of the symmetric
Anderson model in the presence of a magnetic field, focussing in particular on
the strong coupling Kondo regime. The approach is innately simple and
physically transparent; but is found to give good agreement, for essentially
all field strengths, with exact results for the Wilson ratio, impurity
magnetization, spin susceptibility and related properties.Comment: 7 pages, 3 postscript figues. Latex 2e using the epl.cls Europhysics
Letters macro packag
Multidimensional perfectionism and narcissism: Grandiose or vulnerable?
Multidimensional perfectionism is related to grandiose narcissism, with other-oriented perfectionism showing the strongest, most consistent relationships. The relationships with vulnerable narcissism, however, are unclear. Our study investigated how three forms of perfectionism--self-oriented, other-oriented, and socially prescribed perfectionism (Hewitt & Flett, 1991)--are related to narcissistic grandiosity and vulnerability. A sample of 375 university students completed the Narcissistic Personality Inventory (Raskin & Terry, 1988), Hypersensitive Narcissism Scale (Hendin & Cheek, 1997), and Pathological Narcissism Inventory (Pincus et al., 2009) capturing various facets of narcissistic grandiosity and vulnerability. Multiple regressions were conducted controlling for the overlap between the three forms of perfectionism and gender. Other-oriented perfectionism showed unique positive relationships with key facets of grandiose narcissism. In contrast, socially prescribed perfectionism showed positive relationships with all facets of vulnerable narcissism. Self- and other-oriented perfectionism showed positive relationships with individual facets only. Other-oriented perfectionism appears to represent a form of perfectionism predominantly related to narcissistic grandiosity, whereas socially prescribed perfectionism is predominantly related to narcissistic vulnerability. As the first study to examine perfectionism in relation to narcissistic grandiosity and vulnerability, our research both extends and clarifies the nomological network of the perfectionism construct in important ways
A local moment approach to the degenerate Anderson impurity model
The local moment approach is extended to the orbitally-degenerate [SU(2N)]
Anderson impurity model (AIM). Single-particle dynamics are obtained over the
full range of energy scales, focussing here on particle-hole symmetry in the
strongly correlated regime where the onsite Coulomb interaction leads to
many-body Kondo physics with entangled spin and orbital degrees of freedom. The
approach captures many-body broadening of the Hubbard satellites, recovers the
correct exponential vanishing of the Kondo scale for all N, and its universal
scaling spectra are found to be in very good agreement with numerical
renormalization group (NRG) results. In particular the high-frequency
logarithmic decays of the scaling spectra, obtained here in closed form for
arbitrary N, coincide essentially perfectly with available numerics from the
NRG. A particular case of an anisotropic Coulomb interaction, in which the
model represents a system of N `capacitively-coupled' SU(2) AIMs, is also
discussed. Here the model is generally characterised by two low-energy scales,
the crossover between which is seen directly in its dynamics.Comment: 23 pages, 7 figure
Topcolor in the LHC Era
Ongoing LHC searches for the standard model Higgs Boson in WW or ZZ decay
modes strongly constrain the top-Higgs state predicted in many models with new
dynamics that preferentially affects top quarks. Such a state couples strongly
to top-quarks, and is therefore produced through gluon fusion at a rate that
can be greatly enhanced relative to the rate for the standard model Higgs
boson. As we discuss in this talk, a top-Higgs state with mass less than 300
GeV is excluded at 95% CL if the associated top-pion has a mass of 150 GeV, and
the constraint is even stronger if the mass of the top-pion state exceeds the
top-quark mass or if the top-pion decay constant is a substantial fraction of
the weak scale. These results have significant implications for theories with
strong top dynamics, such as topcolor-assisted technicolor, top-seesaw models,
and certain Higgsless models
Livestock Risk Protection: An Analysis of Coverage Length and Level to Determine Optimal Contract Selection
We evaluate the historically optimal producer-selected coverage options comprised of coverage length and level for each marketing month for various types of livestock insured with Livestock Risk Protection insurance. We begin with feeder cattle steers (600-900lbs) and then analyze the other types of feeder cattle, followed by fed cattle and swine. The optimal contracts are identified as those that have historically provided the highest probability of a positive net return and the highest average net return. We find that regardless of marketing month, the optimal contracts consist of relatively high coverage levels whereas the optimal length of the contracts varies across marketing months and by livestock type. The results are compared against actual policies purchased to evaluate whether producer decision patterns are in line with the current findings
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