Motor-driven rack-positioning device

Ramped clutch plate prevents damage to gear traing and provides ample linear motion for actuation of microswitch. Operation of device is not affected by number of revolutions which pinion shaft must make to produce required translations. Since ramps in spur gear are conical, device will actuate identically at each mechanical stop

Unified life detection system: A concept

Systematic investigation of techniques and hardware which could be utilized in life detection system has resulted in identification of group of candidate concepts and selection of "unified system". Theme of concept permits greatest flexibility in procedural details for experiments which can be performed in individual ampules

The Mental Development of Children of the Same I.Q. in Differing Institutional Environments

The purpose of this study is to investigate the mental development of children of the same mental level in relation to residence in institutional environments of differing mental level. The subjects consist of children resident in four Iowa childrens\u27 institutions. They were selected from a large number of children who had been given individual tests, and who were resident in these institutions between an initial test and one or more retests. The Stanford and Kuhlmann Revisions of the Binet Scale were used for all individual tests, and were administered by well-trained examiners as a part of the cooperative program between the Iowa Child Welfare Research Station and the Iowa Board of Control of State Institutions

Portraits with a Posthumous Voice: Reinforcing and Contesting Social Norms in the Heterotopic Museum and Cemetery

Abstract The following paper qualitatively analyzes and documents over 500 memorial-photographs/etched portraits on tombstones in ten Western New York cemeteries. This paper covers fourteen topics, ranging from religion to gang-violence. A juxtaposition of portraits exhibited within the Smithsonian National Portrait Gallery with memorial-portraits on tombstones revealed heterotopic environments creating a public forum enabling the reinforcing or contestation of social ideologies. In other words, the author observed the similarities of identities and social norms publicly expressed on tombstones and gallery portraits. A Social Constructionist approach enabled the study to examine how one social phenomenon contributes to the shaping of a culture. Viewed through a Sociological lens, portraitures displayed within cemeteries and museums are envisaged supporting particular social values (i.e. bravery) or challenging engrained belief systems (i.e. gender norms). A collective-identity and cultural ethos is latently reified through the public display of individuals within both the museum and cemetery. The sitter’s expression, dress, and posture influence how members of a society internalize their worldview