2,698 research outputs found
Some E-J Generalized Hausdorff Matrices Not of Type
We show that there exists a regular E-J generalized
Hausdorff matrix which has no zero elements on the main diagonal
and which is not of type and establish several other related theorems
The university-center baccalaureate degree in California: a multiple case study
The community college baccalaureate and the university-center baccalaureate models are gaining traction in the state of California as alternatives to addressing the need for greater access to baccalaureate degree programs and to increase the baccalaureate-educated workforce. Little is known about the characteristics and factors associated with the university-center baccalaureate model that exists in California; specifically, there is an absence of standard criteria for measuring the effectiveness of the models in place. Therefore, a multiple case study was conducted to examine the 3 university-center baccalaureate model programs in California to develop an inventory of characteristics, identify common indicators of success, and develop a model evaluation plan for university-center baccalaureate programs. The case analysis led to a cross-case comparison that identified common characteristics, unique characteristics, and typology-based descriptions (Floyd, Skolnik, & Walker, 2005). Based on the results of the study, recommendations were made for the development of a university-center baccalaureate program in California, common indicators of effectiveness for university-center programs in California were presented, and a model evaluation plan to serve as a template from which other university-center baccalaureate programs could use was developed
Expanding the parameters of academia
This paper draws on qualitative data gathered from two studies funded by the UK Leadership Foundation for Higher Education to examine the expansion of academic identities in higher education. It builds on Whitchurch’s earlier work, which focused primarily on professional staff, to suggest that the emergence of broadly based projects such as widening participation, learning support and community partnership is also impacting on academic identities. Thus, academic as well as professional staff are increasingly likely to work in multi-professional teams across a variety of constituencies, as well as with external partners, and the binary distinction between ‘academic’ and ‘non-academic’ roles and activities is no longer clear-cut. Moreover, there is evidence from the studies of an intentionality about deviations from mainstream academic career routes among respondents who could have gone either way. Consideration is therefore given to factors that influence individuals to work in more project-oriented areas, as well as to variables that affect ways in which these roles and identities develop. Finally, three models of academically oriented project activity are identified, and the implications of an expansion of academic identities are reviewed
Convergence and stability theorems for the Picard-Mann hybrid iterative scheme for a general class of contractive-like operators
In this paper we use the general class of contractive-like operators introduced by
Bosede and Rhoades (J. Adv. Math. Stud. 3(2):1-3, 2010) to prove strong convergence
and stability results for Picard-Mann hybrid iterative schemes considered in a real
normed linear space. We establish the strong convergence and stability of the Picard
iterative scheme as a corollary. Our results generalize and improve a multitude of
results in the literature, including the recent results of Chidume (Fixed Point Theory
Appl. 2014:233, 2014)
Tests of Transfer Reaction Determinations of Astrophysical S-Factors
The reaction has been used to determine
asymptotic normalization coefficients for transitions to the ground and first
excited states of . The coefficients provide the normalization for
the tails of the overlap functions for and allow us
to calculate the S-factors for at astrophysical
energies. The calculated S-factors are compared to measurements and found to be
in very good agreement. This provides the first test of this indirect method to
determine astrophysical direct capture rates using transfer reactions. In
addition, our results yield S(0) for capture to the ground and first excited
states in , without the uncertainty associated with extrapolation from
higher energies.Comment: 6 pages, 2 figure
On the dual nature of partial theta functions and Appell-Lerch sums
In recent work, Hickerson and the author demonstrated that it is useful to
think of Appell--Lerch sums as partial theta functions. This notion can be used
to relate identities involving partial theta functions with identities
involving Appell--Lerch sums. In this sense, Appell--Lerch sums and partial
theta functions appear to be dual to each other. This duality theory is not
unlike that found by Andrews between various sets of identities of
Rogers-Ramanujan type with respect to Baxter's solution to the hard hexagon
model of statistical mechanics. As an application we construct bilateral
-series with mixed mock modular behaviour.Comment: To be published in Advances in Mathematic
Multiple electromagnetic electron positron pair production in relativistic heavy ion collisions
We calculate the cross sections for the production of one and more
electron-positron pairs due to the strong electromagnetic fields in
relativistic heavy ion collisions. Using the generating functional of fermions
in an external field we derive the N-pair amplitude. Neglecting the
antisymmetrisation in the final state we find that the total probability to
produce N pairs is a Poisson distribution. We calculate total cross sections
for the production of one pair in lowest order and also include higher-order
corrections from the Poisson distribution up to third order. Furthermore we
calculate cross sections for the production of up to five pairs including
corrections from the Poisson distribution.Comment: 13 pages REVTeX, 4 Postscript figures, This and related papers may
also be obtained from http://www.phys.washington.edu/~hencken
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