1,518 research outputs found

    Has the Roberts Court Plurality\u27s Colorblind Rhetoric Finally Broken \u3cem\u3eBrown\u27s\u3c/em\u3e Promise?

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    This Essay examines the continuing significance of the Keyes decision to the judicial vision of equality and racial isolation in public education. By comparing efforts to promote educational equality from the Keyes era through today, this Essay asserts that the judiciary has wrongly embraced a colorblind interpretation of the Equal Protection Clause. In so doing, courts have impeded the progress of children in Denver and around the country, ignored highly instructive social science studies on the benefits of desegregation, and broken the constitutional promise of equal citizenship. For future policy makers and lawyers to address these persistent problems, legal educators must equip students with tools to reclaim legal conversations about freedom and equaltiy. The author, Dean Phoebe A. Haddon of the University of Maryland Francis King Carey School of Law, concludes with recollections of her late aunt, Rachel B. Noel, who played an instrumental part in the evolution of the Keyes case

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    73. The Textile Patterns of the Sea-Dayaks

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    Anisotropy of the Mobility of Pentacene from Frustration

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    The bandstructure of pentacene is calculated using first-principles density functional theory. A large anisotropy of the hole and electron effective masses within the molecular planes is found. The band dispersion of the HOMO and the LUMO is analyzed with the help of a tight-binding fit. The anisotropy is shown to be intimately related to the herringbone structure.Comment: Accepted for publication in Synthetic Metal

    Method of Solubilizing Carbon Nanotubes in Organic Solutions

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    Carbon nanotubes are dissolved in organic solutions by attaching an aliphatic carbon chain (which may contain aromatic residues) so as to render the carbon nanotubes soluble

    Method of Solubilizing Unshortened Carbon Nanotubes in Organic Solutions

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    Naked carbon nanotubes are dissolved in organic solutions by terminating the nanotubes with carboxylic acid groups and attaching an aliphatic carbon chain so as to render the carbon nanotubes soluble

    Population dynamics and habitat partitioning by size, sex, and molt stage of blue crabs Callinectes sapidus in a subestuary of central Chesapeake Bay

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    Abundances, size-frequency distributions, sexual composition and molt-stage composition of blue crabs Callinectes sapjdus were measured during 1983 to 1985 in the Rhode River, a subestuary of central Chesapeake Bay, USA. Crabs at the mouth and head of the river basin were sampled with monthly triplicate otter trawls. Crabs in the principal tidal creek of the river were sampled 3 d a week with a fish weir, which caught crabs moving upstream and downstream separately. Crabs exhibited consistent, marked seasonal cycles in abundance as well as considerable annual variation in July peak abundances. New recruits entered the subestuary in late fall and spring and grew rapidly to 70 to 100+ mm in their first summer; by the second year they reached mature sizes of 120 to 170 mm. Sixty % of crabs in the river basin were males; and after maturation and copulation in late summer to early fall, mature females left the subestuary. Crabs partitoned habitats within the Rhode fiver subestuary by size, sex, and molt stage. Polymodal size structures were similar throughout the river basin, but increased percentages of males were found at the head of the river. Predominantly (90 %) medium-sized (80 to 120 mm) males utilized the tidal creek as a molting habitat. Most crabs moving upstream were in premolt, whereas most crabs moving downstream were significantly larger and in postrnolt, so that about 70 % of crabs in the creek were near ecdysis. Males and females exhibited significantly lower, but still appreciable (about 25 Oh) rnolting activit; Lhrsughout tie river basin. These data provide one of the best documented cases of habitat partitioning by size, sex and molt stage in crustaceans
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