First Record of the Ragged-tooth Shark, Odontaspis ferox, off the U.S. Atlantic Coast

On 11 September 1994, a large shark was captured and later identified as the ragged-tooth shark, Odontaspis ferox (Risso). The shark was captured during routine bottom trawl survey operations onboard the NOAA R/V Albatross IV, approximately 25 n.mi. south-southeast of Cape Hatteras, N.C. (lat. 34° 51' N, long. 75° 26' W) with a “36 Yankee” bottom trawl towed at 3.5 knots. Average water depth at the time of capture was 173 m, bottom temperature was 17.8°C, and salinity was 36.41‰. Total length (cm), fork length (cm), weight (kg), and sex were recorded, the specimen was tagged, photographed, and returned live to

The Dissociation Energy of Carbon Monoxide and the Heat of Sublimation of Graphite

For a number of years there has existed doubt about the value of the dissociation energy of carbon monoxide and about the heat of sublimation of graphite, a directly related quantity. The most popular values for the dissociation energy of carbon monoxide are 9.144 electron-volts, suggested by Herzberg [1] on the basis of predissociation phenomena in band spectra, 9.61 e. v., suggested by Hagstrum and Tate [2] on the basis of electron impact experiments (or the value 9.85 e. v. derivable from predissociation data [3]), and 11.11 e. v., suggested by Gaydon and Penney [4] from an analysis of spectroscopic data. These values together with thermochemical data lead to the values 124.9, 141.4, and 170.3 kcal./mole, respectively, for the heat of sublimation of graphite. Strong evidence for the last of these values has been presented by Brewer, Gilles, and Jenkins [5], who have reported 170.4 kcal./mole from a direct experimental determination. The value has, however, been criticized by other investigators [6,7], and has been defended by Brewer [8]. In this paper we communicate an argument which indicates that the higih values of about 170 kcal./mole for the heat of sublimation of carbon to C(g)(3P) and 11.11 e. v. for the dissociation energy of carbon monoxide are not correct, and which leads instead to the values 140 kcal./mole and 9.77 e. v., respectively

An evaluation of self-administering arithmetic enrichment activities for grades 4, 5, and 6

Thesis (Ed.M.)--Boston Universit

Climate Impacted Littoral Phenomena and customary property rights

This article looks at the relationship between different structures of property rights and climate change in littoral areas. It presents a critical historical political economy perspective on the Hohfeldian analysis of property as a legal and jurisprudential concept, primarily by contextualising it as embedded in broader social, economic and environmental relations. Through consideration of contemporary developments in environmental practices in Ghana and Australia, it argues that dramatic changes in customary property rights since their incorporation in the capitalist mode of production have greatly enhanced anthropogenic activities which, in turn, have placed such rights at great risk: of submergence, of losing economic and cultural value, and of disrupting extant economic and biophysical practices. The policy implications arising from such concerns are considere