53,749 research outputs found
Dual Language and ENL Comprehension: A First Grade Study for Students at Risk for Delayed English Language Development
This research began by asking how dual language programming impacts English comprehension for ENL students. Research was conducted within one first grade dual language cohort with five bilingual students. The data was collected by interviewing teachers and students, utilizing historical comprehension data, observing read alouds, and assessing student comprehension. Findings revealed that comprehension in a participant’s first language was positively related to English comprehension. However, individual student differences impacted the extent of the correlation. Furthermore, dual language teachers implemented common instructional practices to scaffold ENL student comprehension. Therefore, the data implied that native language instruction is integral, student backgrounds and differences need to be analyzed, and dual language educators need adequate professional development to best aid ENL comprehension
Deterioration and Noise in Technologies of Audio Reproduction
No abstract supplied. This thesis also contains music files - please contact the author if you wish to access these file
The Lost Generation: Environmental Regulatory Reform in the Era of Congressional Abdication
Congress constructed the entirety of the modern federal environmental regulatory system between 1970 and 1990. However, due to ever increasing political polarization and gridlock, Congress has abdicated its responsibility as the primary national environmental policymaker over the past 25 years. Since 1990, no major environmental legislation has been enacted, leading to a growing sense that the federal system has become stagnated and obsolescent. Since the mid-1990s, concerns over the effectiveness, inefficiencies, and under-inclusiveness of the federal system have led to a robust reform movement seeking to build the next generation of environmental regulation. Because of Congress\u27s inability to enact environmental legislation, however, such reform efforts have largely centered on numerous, primarily voluntary executive branch reinvention initiatives at EPA. Congress\u27s failure to support these efforts, through legislation or otherwise, has severely undermined the ability of these efforts to achieve meaningful success, leading to a lost generation of environmental regulatory reform. This Article surveys the most widely promoted and analyzed of the next generation environmental regulatory reform proposals and calls on Congress to accept reform advocates\u27 challenge to improve and modernize a severely outdated regulatory system
Conformal invariants measuring the best constants for Gagliardo-Nirenberg-Sobolev inequalities
We introduce a family of conformal invariants associated to a smooth metric
measure space which generalize the relationship between the Yamabe constant and
the best constant for the Sobolev inequality to the best constants for
Gagliardo-Nirenberg-Sobolev inequalities . These invariants are constructed via a minimization
procedure for the weighted scalar curvature functional in the conformal class
of a smooth metric measure space. We then describe critical points which are
also critical points for variations in the metric or the measure. When the
measure is assumed to take a special form --- for example, as the volume
element of an Einstein metric --- we use this description to show that
minimizers of our invariants are only critical for certain values of and
. In particular, on Euclidean space our result states that either
or , giving a new characterization of the GNS inequalities whose
sharp constants were computed by Del Pino and Dolbeault.Comment: 20 page
Deregulation: Invitation to Disaster in the S&L Industry
This speech was given by Professor Case as part of the Annual Financial Institutions and Regulation Symposium at the Fordham School of Law
Sharp weighted Sobolev trace inequalities and fractional powers of the Laplacian
We establish a family of sharp Sobolev trace inequalities involving the
-norm. These inequalities are closely related
to the realization of fractional powers of the Laplacian on
as generalized Dirichlet-to-Neumann
operators associated to powers of the weighted Laplacian in upper half space,
generalizing observations of Caffarelli--Silvestre and of Yang.Comment: 25 page
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