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Biomedical subjects

S J Ji

Publications and source records attributed to S J Ji.

6 recordsLinked to original sources
PubMed1997

Racial residential segregation and the concentration of low- and high-income households in the 45 largest U.S. metropolitan areas.

"The objectives of this paper are to determine the relationship between racial residential segregation and (1) the spatial concentration of low- and high-income households, and (2) the socioeconomic characteristics of racial minority households. The three largest racial minority groups are compared (blacks, Hispanics, and Asians) in the largest 45 metropolitan areas in the United States. Data were obtained from the U.S. bureau of the Census' Population and Housing Summary Tape files. The results revealed that residential segregation of blacks was distinctly different from Asians and Hispanics. Moreover, for Asians and Hispanics, their socioeconomic characteristics matter in their level of residential segregation. For black households, however, their socioeconomic characteristics matter little."

Black or African American↗
PubMed1994

[Clinical and pathological changes of ischemic necrosis of the femoral head in children].

A total of 54 cases (73 hips) with ischemic necrosis of the femoral head after treatment of CDH have been followed up with an average of 7 years. We found that 89% cases of type I and 70% of type II recovered to normal and 83% cases of type III and IV developed the coxa breva deformity due to injury of longitudinal growth plate of the proximal end of the femur. According to the value of ATD, the coxa breva was divided into three types. The L shape growth disturbance line revealed by X-ray is considered as a marker for determination of early epiphyseal plate injury by the authors.

Anthropometry↗
PubMed1991

Intramedullary pressure changes in proximal femur before and after treatment of congenital dislocation of the hip. Evaluation of the development of the femoral head.

Thirty-four hips were observed radiographically to see the development of the femoral head. The intramedullary pressure was measured in the proximal femur before and after treatment of congenital dislocation of the hips. The intramedullary pressure in the avascular femoral head decreased more obviously than that in the normal head after treatment. A term of "IMP subtraction value" was put forward as an objective index for evaluating the development of the femoral head after treatment of congenital dislocation of the hip.

Child↗
PubMed1989

Intramedullary pressure in the proximal femur before and after treatment of congenital dislocation of the hip in children.

Intramedullary pressure in the proximal femur was measured before and after treatment of congenital dislocation of the hip. The intramedullary pressure before treatment was higher than that of the control group, and after treatment it was lower as a whole; in the close reduction group the pressure decreased as compared with the operation group. In 8 hips, stress test yielded negative results. These findings suggested the characteristics of arterial blockage may be that the potential cause of avascular necrosis of the femoral head after treatment of congenital dislocation of the hip.

Blood Pressure↗