Physical Attractiveness, Opportunity, and Success in Everyday Exchange

28 pagesThe role of perceived physical attractiveness in everyday exchange is addressed using a laboratory paradigm that examines both play-versus- not-play and cooperate-versus-defect choices in an ecology of available prisoner’s dilemma games. The analysis considers the actions of both subject and other in encounters where exchange relationships are possible and include perceptions of others’ and own physical attractiveness. Results indicate that subjects are more likely to enter play and to cooperate with others they find attractive. Men who see themselves as more attractive more often cooperate than other men, while women who see themselves as more attractive less often cooperate than other women. In addition, subjects who rate themselves as highly attractive are more likely to cooperate with others they see as also highly attractive. Subjects expect others whom they see as attractive to cooperate more often. At the same time, the effect of perceived attractiveness on choice is independent of these expectations, supporting the hypothesis that attractiveness is a “taste” or “benefit” for actors in exchange relationships

Improved functionalization of oleic acid-coated iron oxide nanoparticles for biomedical applications

Superparamagnetic iron oxide nanoparticles can providemultiple benefits for biomedical applications in aqueous environments such asmagnetic separation or magnetic resonance imaging. To increase the colloidal stability and allow subsequent reactions, the introduction of hydrophilic functional groups onto the particles’ surface is essential. During this process, the original coating is exchanged by preferably covalently bonded ligands such as trialkoxysilanes. The duration of the silane exchange reaction, which commonly takes more than 24 h, is an important drawback for this approach. In this paper, we present a novel method, which introduces ultrasonication as an energy source to dramatically accelerate this process, resulting in high-quality waterdispersible nanoparticles around 10 nmin size. To prove the generic character, different functional groups were introduced on the surface including polyethylene glycol chains, carboxylic acid, amine, and thiol groups. Their colloidal stability in various aqueous buffer solutions as well as human plasma and serum was investigated to allow implementation in biomedical and sensing applications.status: publishe

Map of the Great Lakes-Atlantic Highway : showing every city, town, village and hamlet throughout its entire length / John C. Mulford, chief cartographer, E.E. Jenkins, cartographer ; issued under joint auspices of the National Highways Association, Great Lakes Atlantic Highway Association

Road goes from Cleveland to Miami.The National Highways Association (NHA) was established in 1911 to promote the development of an improved national road network in the United States. Under the slogan “Good roads for everyone!” the NHA advocated the building and permanent maintenance by the federal government of a system of 50,000 miles (some 80,500 kilometers) of highways. This map, issued by the NHA in 1915, shows the Great Lakes–Atlantic Highway, proposed by the Great Lakes-Atlantic Highway Association and endorsed by the NHA. The projected route runs from Cleveland, Ohio, to Miami, Florida, a distance of 1,535 miles (2,470 kilometers), with separate spurs to the Atlantic ports of Norfolk, Virginia; Wilmington, North Carolina; and Charleston, South Carolina. The notes and table in the lower right indicate the numbers of states, counties, and cities of different sizes traversed by the route and the population expected to be served. Besides issuing brochures and circulars aimed at convincing citizens of the need for a national road system, the NHA was a prolific producer of maps. Cartographic work was done at an office in South Yarmouth, Massachusetts, where approximately 40 people were employed on the property of Charles Henry Davis (1865–1951), president and cofounder of the NHA. Davis believed that these maps would be helpful to a national highways commission that he hoped would be established and that they would assist the states in integrating their roads into a national system. Congress never embraced the plan put forward by the NHA, but the organization and its maps helped to promote the cause of a national road network.Color1:5,000,00

Map of the Great Plains Road : showing every city, town, village and hamlet throughout its entire length / issued under joint auspicies of the National Highways Association, Great Plains Road Association ; John C. Mulford, Chief cartographer, E.E. Jenkins, cartographer

Shows tentative locations for part of a system of 100,000 miles of national highways. "Proposed by the Great Plains Road Association and also advocated by the National Highway Association." "November 1915."The National Highways Association (NHA) was established in 1911 to promote the development of an improved national road network in the United States. Under the slogan “Good roads for everyone!” the NHA advocated the building and permanent maintenance by the federal government of a system of 50,000 miles (some 80,500 kilometers) of highways. This map, issued by the NHA in 1915, shows the Great Plains Road, proposed by the Great Plains Road Association and endorsed by the NHA. The projected route runs from the U.S.–Canada border in Portal, North Dakota, to Brownsville, Texas, on the U.S.–Mexico border, a distance of 2,350 miles (3,782 kilometers). The notes and table at the bottom indicate the numbers of states, counties, and cities of different sizes traversed by the route and the population expected to be served. Besides issuing brochures and circulars aimed at convincing citizens of the need for a national road system, the NHA was a prolific producer of maps. Cartographic work was done at an office in South Yarmouth, Massachusetts, where approximately 40 people were employed on the property of Charles Henry Davis (1865–1951), president and cofounder of the NHA. Davis believed that these maps would be helpful to a national highways commission that he hoped would be established and that they would assist the states in integrating their roads into a national system. Congress never embraced the plan put forward by the NHA, but the organization and its maps helped to promote the cause of a national road network.Color1:5,000,00

Map of the Canada-Kansas City-Gulf Road : showing every city, town, village and hamlet throughout its entire length / issued under joint auspices of the National Highways Association, Canada-Kansas City-Gulf Road Association ; John C. Mulford, chief cartographer, M. Hooton, cartographer

"Proposed by the Canada-Kansas City-Gulf Road Association and also advocated by the National Highways Association."The National Highways Association (NHA) was established in 1911 to promote the development of an improved national road network in the United States. Under the slogan “Good roads for everyone!” the NHA advocated the building and permanent maintenance by the federal government of a system of 50,000 miles of highways. This map, issued by the NHA in 1915, shows the Canada–Kansas City–Gulf Road, proposed by the Canada–Kansas City–Gulf Road Association and endorsed by the NHA. The projected route runs from Duluth, Minnesota, to Cameron, Louisiana, a distance of 1,600 miles (2,575 kilometers). The notes and table at the bottom indicate the numbers of states, counties, and cities of different sizes traversed by the route and the population expected to be served. Besides issuing brochures and circulars aimed at convincing citizens of the need for a national road system, the NHA was a prolific producer of maps. Cartographic work was done at an office in South Yarmouth, Massachusetts, where approximately 40 people were employed on the property of Charles Henry Davis (1865–1951), president and cofounder of the NHA. Davis believed that these maps would be helpful to a national highways commission that he hoped would be established and that they would assist the states in integrating their roads into a national system. Congress never embraced the plan put forward by the NHA, but the organization and its maps helped to promote the cause of a national road networkColor1:5,000,00

Map of the Sunshine Highway : showing every city, town, village and hamlet throughout its entire length / issued under joint auspices of the National Highways Association, Sunshine Highway Association ; John C. Mulford, Chief Cartographer, E.E. Jenkins, Cartographer

Shows tentative locations for part of a system of 100,000 miles of National Highways. "Proposed by the Sunshine Highway Association and also advocated by the National Highways Association."The National Highways Association (NHA) was established in 1911 to promote the development of an improved national road network in the United States. Under the slogan “Good roads for everyone!” the NHA advocated the building and permanent maintenance by the federal government of a system of 50,000 miles (some 80,500 kilometers) of highways. This map, issued by the NHA in 1915, shows the Sunshine Highway, proposed by the Sunshine Highway Association and endorsed by the NHA. The projected route runs from the U.S.–Canada border in Washington State to Nogales, Arizona, on the U.S.–Mexico border, a distance of 2,248 miles (3,618 kilometers). The notes and table in the lower left indicate the numbers of states, counties, and cities of different sizes traversed by the route and the population expected to be served. Besides issuing brochures and circulars aimed at convincing citizens of the need for a national road system, the NHA was a prolific producer of maps. Cartographic work was done at an office in South Yarmouth, Massachusetts, where approximately 40 people were employed on the property of Charles Henry Davis (1865–1951), president and cofounder of the NHA. Davis believed that these maps would be helpful to a national highways commission that he hoped would be established and that they would assist the states in integrating their roads into a national system. Congress never embraced the plan put forward by the NHA, but the organization and its maps helped to promote the cause of a national road network.Color1:5,000,00