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Biomedical subjects

R Blake

Publications and source records attributed to R Blake.

180 records · Page 10Linked to original sources
PubMed1975

The floating knee: Ipsilateral fractures of the tibia and femur.

Fifty-one extremities with ipsilateral tibial and femoral fractures are reviewed. Some children are included in the study. Most of the 47 patients are young men who have multiple injuries with high velocity trauma. The involved extremities are classified according to the injury site: Type 1 fractures involve both shafts; type 2-A fractures involve the knee joint; type 2-B fractures involve hip or ankle joints. Complications are frequent. Delayed union or nonunion occurred in 44.6% of the total number of bones involved. Sixty to seventy percent of the adult patients showed significant permanent functional disability.

Accidents, Traffic↗
PubMedDate not supplied

Direction repulsion in motion transparency.

A series of experiments investigated perceived direction of motion and depth segregation in motion transparency displays consisting of two planes of dots moving in different directions. Direction and depth judgments were obtained from human observers viewing these "bi-directional" animation sequences with and without explicit stereoscopic depth information. We found that (1) misperception of motion direction ("direction repulsion") occurs when two spatially intermingled directions of motion are within 60 deg of each other; (2) direction repulsion is minimal at cardinal directions; (3) perception of two directions of motion always results in separate motion planes segregated in depth; and (4) stereoscopic depth information has no effect on the magnitude of direction repulsion, but it does disambiguate the depth relations between motion directions. These results are developed within the context of a two-stage model of motion transparency. On this model, motion directions are registered within units subject to inhibitory interactions that cause direction repulsion, with the outputs of these units pooled within units selective for direction and disparity.

Adaptation, Ocular↗
PubMedDate not supplied

Normalization and boarding homes: an examination of paradoxes.

Boarding homes have emerged throughout the nation as places where many deinstitutionalized psychiatric patients, and others, reside. They represent one type of congregate living arrangement which is expected to facilitate social policy goals of enabling chronically mentally ill people to live in the most appropriate, least restrictive environment possible. This paper presents a study of ten boarding homes in New Jersey which suggests that instead of being empowered as consumers, residents have become commodities; instead of gaining additional freedoms, deinstitutionalized persons have been abandoned. The paper also presents problematic issues concerning the provision of treatment and rehabilitation services to boarding home residents.

Community Mental Health Services↗
PubMedDate not supplied

Isolated septic meningococcal arthritis.

Among the different types of arthritis associated with meningococcal disease, isolated primary meningococcal arthritis is unusual. A case of isolated group C meningococcal septic arthritis in an HIV negative homosexual male is described and its possible implication discussed.

Adult↗