201,162 research outputs found
’You Can Never Go Home Again’: Cultural Memory and Identity Formation in the Writing of Southeast Asian Chinese
Optimization of perturbative similarity renormalization group for Hamiltonians with asymptotic freedom and bound states
A model Hamiltonian that exhibits asymptotic freedom and a bound state, is
used to show on example that similarity renormalization group procedure can be
tuned to improve convergence of perturbative derivation of effective
Hamiltonians, through adjustment of the generator of the similarity
transformation. The improvement is measured by comparing the eigenvalues of
perturbatively calculated renormalized Hamiltonians that couple only a
relatively small number of effective basis states, with the exact bound state
energy in the model. The improved perturbative calculus leads to a few-percent
accuracy in a systematic expansion.Comment: 6 pages of latex, 4 eps figure
Fermion mass and mixing patterns from a rotating mass matrix
It is shown that all existing data on mixing between up and down fermion
states (i.e. CKM matrix and neutrino oscillations) and on the hierarchical
quark and lepton mass ratios between generations are consistent with the two
phenomena being both consequences of a mass matrix rotating in generation space
with changing energy scale. As a result, the rotation of the mass matrix can be
traced over some 14 orders of magnitude in energy from the mass scale of the
-quark at 175 GeV to below that of the atmospheric neutrino at 0.05 eV. This
is a summary of recent work done in collaboration with Chan Hong-Mo and Jose
Bordes.Comment: 12 pages latex, 6 figures, talk given at the International Symposium
on Frontiers of Science - In Celebration of the 80th Birthday of C N Yang,
June 2002, Beijin
Oceanography Professional Development in Virginia Via Collaboration, Field Integration, and Inquiry
Seventy-nine in-service teachers completed one of six sections of a grant-funded, graduate-level, summer course entitled, Oceanography, that was offered at four different locations in Virginia between 2005 and 2007. The majority of the teachers enrolled with the objective of obtaining their add-on earth science endorsement through the Virginia Earth Science Collaborative (VESC). Oceanography was designed to integrate the following: 1) the ocean science disciplines of geology, chemistry, physics, and biology; 2) inquiry-based learning strategies, quantitative activities, and technology; and, 3) Virginia Institute of Marine Science (VIMS) field experience with classroom experiences. These design themes were informed by ocean science content standards and science education best practices, and supported the goal that, upon completion of the course, teachers would be confident and competent in their abilities to teach oceanography concepts to grades 6-12 [1-3]. Learning outcomes, instructor feedback, and participant feedback suggest that the VESC’s Oceanography can serve as an instructional model for teacher professional development in oceanography. A collaborative instructional framework (marine educators, master teacher, and university faculty), small class size, and end-of-course field synthesis projects are additional elements that contributed to positive learning outcomes in course sections. The primary challenge in the course was the compressed, two-week time frame of face-to-face instruction
Review of The Endless Battle: The Fall of Hong Kong and Canadian POWs in Imperial Japan by Andy Flanagan
Review of The Endless Battle: The Fall of Hong Kong and Canadian POWs in Imperial Japan by Andy Flanagan
Should A Program Of Sex Education Be Mandatory in Public Schools From 4th-12th Grade?
For a position paper and presentation in her Changing Family course last fall, Tara explored the debate surrounding sexual education in the public school system. After completing extensive research regarding the policies which are already in place and evaluating their success, Tara formed the position that a program of sexual education should be mandatory in public schools form 4th to 12th grade. During an era where popular reality television shows include “Sixteen and Pregnant” as well as “Teen Mom” depict what a large issue teenage pregnancy is and how mainstream it has become in society. Tara does an excellent job of giving a well rounded view of the issue and supporting her claims with research and statistics
Review of The British Commonwealth and Victory in the Second World War by Iain E. Johnston-White
Review of The British Commonwealth and Victory in the Second World War by Iain E. Johnston-White
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