Cocurrent spontaneous imbibition (COCSI) of an aqueous phase into matrix blocks arising from capillary forces is an important mechanism for petroleum recovery from fractured petroleum reservoirs. In this work, the modeling of countercurrent imbibition is used to develop the appropriate scaling equations. Considering the imbibition process and the water and oil movement respectively as the wet p...

One of three preparations-silicone oil, hydrocortisone acetate, and hydrocortisone acetate plus saline-was injected into 22 osteoarthritic and 49 rheumatoid knees. Silicone injected into stiff, dry, grating knees which were the site of chronic arthritis did not promote better movement than did hydrocortisone alone. Hydrocortisone plus saline, however, appeared to be more effective than silicone...

The Gulf of Mexico ecosystem is a hotspot for biological diversity and supports a number of industries, from tourism to fishery production to oil and gas exploration, that serve as the economic backbone of Gulf coast states. The Gulf is a natural hydrocarbon basin, rich with stores of oil and gas that lie in reservoirs deep beneath the seafloor. The natural seepage of hydrocarbons across the Gu...

Adults evaluate others based on their speech, yet little is known of the developmental trajectory by which accent attitudes are acquired. Here we investigate the development of American children's attitudes about Northern- and Southern-accented American English. Children in Illinois (the "North") and Tennessee (the "South") evaluated the social desirability, personality characteristics, and geo...

Accurate prediction of the movement of spilled oil is important for a fast and effective response to an oil spill accident. To predict the dispersion of released oil, numerical models using physiochemical properties and/or environmental conditions as input data have been applied. The environmental conditions that are provided as observation data have values that vary depending on time and space...

All people share knowledge of cultural stereotypes of social groups--but what are the origins of these stereotypes? We examined whether stereotypes form spontaneously as information is repeatedly passed from person to person. As information about novel social targets was passed down a chain of individuals, what initially began as a set of random associations evolved into a system that was simpl...

Like adults, young infants prefer attractive to unattractive faces (e.g. Langlois, Roggman, Casey, Ritter, Rieser-Danner & Jenkins, 1987; Slater, von der Schulenburg, Brown, Badenoch, Butterworth, Parsons & Samuels, 1998). Older children and adults stereotype based on facial attractiveness (Eagly, Ashmore, Makhijani & Longo, 1991; Langlois, Kalakanis, Rubenstein, Larson, Hallam & Smooth, 2000)....

lnterpretivist movements in anthropology and sociology have recently merged with neo-Marxist and feminist theory to produce a unique genre of research in the field of education known as "critical ethnography." Critical ethnographers seek research accounts sensitive to the dialectical relationship between the social structural constraints on human actors and the relative autonomy of human agency...

The traditional figure of Black Pete seen during the December festivities around Sinterklaas (the Dutch Santa Claus) in the Netherlands has sparked fierce debates about his racial stereotypical characteristics and his potentially negative effects on children's opinions about black people. The Black Pete phenomenon has even been discussed by the United Nations Committee on the Elimination of Rac...