Discusses the definition of temperature and the concept of order in non-mathematical terms. Describes the cooling techniques necessary in low temperature physics research, including magnetic cooling, the use of the Pomeranchuk Effect, and dilution refrigeration. Outlines the types of phenomena observed in matter within various temperature ranges…

The determinants of education quality remain a puzzle in much of the literature. In particular, no one has been able to isolate the effect of the quality of a student's peers on achievement. I identify this by considering the introduction of a magnet school into a school district. The magnet school selects high quality students from throughout the…

Ladder-type circuits where a given unit is repeated infinitely many times are dealt with in many textbooks on electromagnetism as examples of filter circuits. Determining the impedance of such circuits seems to be regarded as simple, which may be due to the fact that the invariance of the infinite system under the operation of adding one more unit…

This article describes the unique multicultural arts program that has developed at Freese Elementary School, located only 20 minutes from the United States-Mexico border, in the southeastern corner of the San Diego Unified School District. The Arts and Culture Magnet Program at Freese grew out of the need build bridges in a neighborhood where…

This report provides essential new information on the relationship between the location of and enrollment in Denver public schools that meet the 2009 School Performance Framework (SPF) standards. Funded by the National Association of Charter School authorizers (NACSA), this research is designed primarily to identify and highlight those areas with…

Have you ever heard of a Maglev train? Who would be crazy enough to think that exploring how a high-tech train little known in the United States works with a group of fourth-grade students would yield understandings about the properties of magnetism, force and motion, and inquiry science? Fortunately, the authors--a college methods professor and…

Given its success as a high achieving, award-winning magnet school for academically oriented students in grades 9-12, Columbus Alternative High School has more than successfully fulfilled its ambitious mission in the 30 years since it was named. According to the school's mission statement, Columbus Alternative aims "to create a truly…

Seventh-grade students (N = 324) completed social cognitive maps to identify peer groups and peer group leaders, sociometric nominations to describe their peers' behaviors, and questionnaires to assess their own behaviors. Peer group members resembled one another in levels of direct and indirect aggression and substance use; girls' cliques were…

Two recent articles in this journal described how an air core solenoid connected to an ac power source may restore the magnetization of a bar magnet with an alternating magnetic field (see Figs. 1 and 2). Although we are quite accustomed to using a constant magnetic field in an air core solenoid to remagnetize a ferromagnet, it is puzzling that we…

The Secretary amends the regulations governing the Magnet Schools Assistance Program (MSAP) in 34 CFR part 280. These amendments allow the MSAP to use an approach similar to that in section 75.200 for establishing selection criteria in grant competitions. Under this approach the MSAP has the flexibility to use selection criteria from its program…

In the summer of 1970, the members of the New Orleans Fifth Circuit Court of Appeals understood clearly the realities of race in the South. Houston, Texas, like other Southern cities, had made haste toward racial school desegregation as slowly as the White Southern Federal courts would allow. When the High School of Performing and Visual Arts…

A general and rigorous method to deal with singularities at the origin of a polar coordinate system is presented. Its power derives from a clear distinction between the radial distance and the radial coordinate variable, which makes that all delta functions and their derivatives are automatically generated, and ensures that the Gauss theorem is…

With a data-acquisition system and sensors commercially available, it is easy to determine magnetic fields produced by permanent magnets and to study the dipole-dipole interaction for different separations and angular positions of the magnets. For sufficiently large distances, the results confirm the 1/R[superscript 3] law for the magnetic field…

A magnetically controlled pendulum is used for observing free and forced oscillations, including nonlinear oscillations and chaotic motion. A data-acquisition system stores the data and displays time series of the oscillations and related phase plane plots, Poincare maps, Fourier spectra and histograms. The decay constant of the pendulum can be…

A series of magnet trade books were analyzed against a validated list of magnet concepts (Barrow, 1990a) and their Flesch (1974) Readability was determined. These trade books were used to supplement a second grade unit on magnetism locally constructed from AIM's "Mostly Magnets" (1991). All trade books accurately described how like and unlike…