Asbestos and Inconel combined to form hot-gas seal

Hot-gas seal prevents warpage tendencies in large flange joints exposed to high temperatures, such as those present in large space vehicle engine exhausts. Two Inconel wire mesh cores are held in place by an asbestos cloth cover that acts as a spacer to form the seal

CEO Turnover and Foreign Market Participation

Anecdotal evidence suggests that new CEOs with foreign backgrounds direct their firms to become more international in their operations. We examine this hypothesis formally using data on U.S. S&P-500 manufacturing firms from 1992 through 1997 and biographical information on CEOs' birth and education locations that allow us to identify changes from U.S.- to foreign-connected CEOs. Robust to a variety of specifications, we find that a U.S. firm's switch from a U.S. to a foreign CEO leads to substantial increases in the firm's proportion of its foreign assets and foreign affiliate sales. In fact, our preferred specification indicates that foreign asset and affiliate sales proportions increase 30 and 50%, respectively, for the five years after there is CEO turnover to one with a foreign background. This is in contrast to U.S.-to-U.S. CEO switches in our sample that show no evidence of changes in a firms' foreign market participation. These large effects contrast with previous literature that finds little evidence for changes in firm performance with CEO turnover.

Marine radiocarbon reservoir effect of coastal waters off Cape Verde archipelago

Quantification of the marine radiocarbon reservoir effect (Delta R) is essential in order to calibrate conventional C-14 dates from marine shell samples with reliability. Delta R also provides information concerning the intensity of coastal upwelling in marine regions influenced by this phenomenon. C-14 ages of closely associated marine samples (mollusk shells) and terrestrial samples (goat bones) from Sao Vicente Island, Cape Verde Archipelago, permitted the first calculation of the marine C-14 reservoir effect in this region. A Delta R weighted mean value of 70 +/- 70 C-14 yr was obtained. This value is in accordance with the previously published oceanographic conditions of the region indicating the existence of a seasonal active upwelling regime

Warrior Nations: The United States and Indian Peoples

Review of: Warrior Nations: The United States and Indian Peoples, by Roger L. Nichol