Hollow vortices and minimal surfaces

We consider an overdetermined elliptic problem known as the hollow vortex problem. We prove that the solutions to this problem are in 1:1 correspondence with minimal graphs bounded by horizontal symmetry lines. We use this correspondence to give various examples of domains with hollow vortices.Comment: 22 pages, 7 figure

Chaco Canyon: A Contested Memory Anchor in the North American Southwest

Natural and archaeological places are powerful loci for social memories and continually negotiated meanings. As ‘memory anchors’ they are focal points for the construction of memory and meaning, and can become flashpoints for disputes over access, land-use, and knowledge claims among stakeholders with contradictory interests. In the North American Southwest the competing claims of Native American tribes, archaeologists, government bureaucrats, tourists, and the mining industry come into sharp relief. In this paper, I explore how the UNESCO World Heritage Site of Chaco Canyon figures prominently in the origin stories and sacred geographies of contemporary Pueblo and Navajo peoples – two indigenous groups with competing political stakes in the present

Alien Registration- Van Dyke, Frank M. (Portland, Cumberland County)

https://digitalmaine.com/alien_docs/21671/thumbnail.jp

Quadra v. Superior Court of the City and County of San Francisco: A Challenge to the Composition of the San Francisco Grand Jury

Quadra v. Superior Court involves a challenge to the procedures used in the selection of San Francisco\u27s investigative grand jury. The Hastings Law Journal has reprinted plaintiffs\u27 memoranda, which argue that such procedures should be governed by the standards applicable to indicting grand juries

Footprinting with MPE•Fe(II). Complementary-strand analyses of distamycin- and actinomycin-binding sites on heterogeneous DNA

We recently reported a direct technique for determining the binding sites of small molecules on naturally occurring heterogeneous DNA (Van Dyke et al. 1982). Methidiumpropyl-EDTA·Fe(II) (MPE·Fe[II]) (Hertzberg and Dervan 1982) cleaves double-helical DNA with low sequence-specificity (Van Dyke et al. 1982). Using a combination of MPE·Fe(II) partial cleavage of drug-protected DNA fragments and Maxam-Gilbert sequencing methods, we determined the drug-protected sites on one strand of a double-helical fragment from pBR322 for the intercalator actinomycin D (Goldberg et al. 1962; Muller and Crothers 1968; Wells and Larson 1970; Sobell 1973; Krugh 1981; Patel et al. 1981; Takusagawa et al. 1982) and the minor-groove binders netropsin and distamycin A (Luck et al. 1974; Wartell et al. 1974; Zimmer 1975; Berman et al. 1979; Krylov et al. 1979). Netropsin and distamycin A gave identical DNA-cleavage inhibition patterns or footprints in regions rich in dA·dT base pairs. Actinomycin D afforded a completely different footprint..