This paper investigates interactions between collocational properties and methods for organizing them into features for machine learning. In experiments performing an event categorization task, Wiebe et al. (1997a) found that different organizations are best for different properties. This paper presents a statistical analysis of the results across different machine learning algorithms. In the e...

The ERM protein family consists of three closely related proteins, ezrin, radixin and moesin (Bretscher, 1983; Pakkanen et al., 1987; Tsukita et al., 1989; Lankes and Furthmayr, 1991; Sato et al., 1992). They are thought to function as general cross-linkers between plasma membranes and actin filaments (Arpin et al., 1994; Tsukita et al., 1997a,b; Bretscher et al., 1997). In cultured epithelial ...

Using the refurbished 305m Arecibo Gregorian Telescope, we detected 43 low surface brightness (LSB) galaxies from the catalog of O'Neil, Bothun, & Cornell (1997a). The detected galaxies range from 22.0 mag arcsec −2 ≤ µ B (0) ≤ 25.0 mag arcsec −2 , with colors ranging from the blue through the first detection of a very red LSB galaxies (B−V = −0.7 to 1.7). The M HI /L B of these galaxies ranges...

It is now becoming widely accepted that interphase nuclei possess a high degree of spatial organization (see, e.g., Gilson et al., 1993; Lamond and Earnshaw, 1998; Marshall et al., 1997a). Order is dictated both by functional needs related to interphase metabolism and by spatial constraints. Several facets of nonrandom chromosome positioning have been recognized. Among them are the association ...

Theory and data from normal prism adaptation are applied toward understanding the ameliorating effects of prism adaptation for left hemispatial neglect patients. The composite nature of the egocentric (noetic) reference frame suggests that the therapeutic value of prism adaptation might be enhanced if a prism adaptation task were selected that produces spatial realignment in the patient’s dysfu...

We investigate the hypothesis that lexical and rule knowledge can be strategically emphasized in word naming based on task demands, in contrast with the hypothesis that a time criterion to respond can be strategically manipulated. We devised the tempo naming to investigate the extent to which readers have precise control over response initiation in naming. Relative to baseline performance in th...

—The physiological responses of juvenile American shad Alosa sapidissima were evaluated during the period of downstream migration in freshwater (FW) and after seawater (SW) acclimation associated with postmigration. Fish were subjected to a standardized, acute handling and confinement stress (3 h). Changes in plasma cortisol, plasma chloride, and hematocrit were monitored for 24 h. Basal levels...

Cytochrome P450 (CYP or P450) 3A4 is known to be the major P450 expressed in the liver. More recently, CYP3A4 was also shown to be the major P450 in the intestine, where it plays an important role in the metabolism of some orally administered drugs. However, studies examining the catalytic properties of CYP3A4 have been largely based on the use of CYP3A4 enzyme obtained from liver or recombinan...

The sensitivity of K ATP channels to high-affinity block by sulfonylureas and to stimulation by K 1 channel openers and MgADP (PCOs) is conferred by the regulatory sulfonylurea receptor (SUR) subunit, whereas ATP inhibits the channel through interaction with the inward rectifier (Kir6.2) subunit. Phosphatidylinositol 4,5bisphosphate (PIP 2 ) profoundly antagonized ATP inhibition of K ATP channe...

Dans cet article, nous Žtudions lÕinfluence de la modŽlisation des coupes dÕun pŽtrole brut sur la valeur calculŽe de la pression minimale de miscibilitŽ (MMP). En particulier, il est expliquŽ quels types de constituants peuvent tre regroupŽs sous forme d'un peusdo-constituant sans pour autant dŽgrader la valeur de la MMP. La procŽdure suivie dans cet article est simple : ˆ partir dÕun pŽtrole...