The purpose of this study was to investigate the effect that three resin indexing materials had on the distortion of split cast in the procedures of solder indexing and block fabrication. The specimen had two cylinders and connecting bar. Two cylinders were a reference cylinder and a test cylinder that were machined precisely and placed on metal base. The total of specimens wee 30 and they were divided into 3 groups according to the resin indexing materials : Acrylic solder , G-C Pattern resin , Z-100 . The relative coordinates (X, Y, Z) of centroids of both cylinders were measured by using 3-D coor dinates measuring machine. The value of indexing distortion was obtained after application of indexing material, and the value of the block distortion was obtained after fabrication of soldering block, and the value of total distortion was a value sum of indexing distortion and block distortion. Intercentroidal linear distortion({{{{ SQRT {X'^2 + Y'^2 +Z'^2 }- SQRT {X^2 + Y^2 +Z^2} }} }}) and global distortion {{{{rm SQRT {(X'-X)^2 +(Y'-Y^)2 +(Z'-Z^)2} }} }} were calculated from data of coordinates of centroids at each mea s u r ing stages. The results of this study were as belows ; 1. The intercentroidal distance between the split casts was reduced by indexing distortion and increased by block distortion. 2. The indexing global distortion between the split casts was smaller than block global distortion. 3. The intercentoidal linear distortion and the global distortion were no significant difference between indexing materials.
Abstracting and Indexing as Topic

No abstract available.
Abstracting and Indexing as Topic*

No abstract available.
Abstracting and Indexing as Topic* ; Surgery, Plastic*

An investigation of 2,310 persons (male: 9,280 in 6 communes in Phu Vang district, Thua Thien Hue provice has shown that hypertensives acounted for 11.34% especially persons with ages of 50 and older (86.09%). The hypertensive rate in Vinh Thai, Phu Da, Phu Thuan, Phu Hai, Phu My and Phu Xuan communes were 13.83%; 13.45%; 11.54%; 11.15%; 9.79% and 9.06%, respectively. The hypertensive rate was directly proportional with the body mass index (BMI) found in women.There was no this correlation in men.
Blood Pressure ; Abstracting and Indexing ; Humans

This study was conducted with a sample of 1772 children aged 6-15 at elementary and junior high schools in CanTho province in order to identify the relationship between blood pressure and age, sex and nutrition. Results showed that: Blood pressure is in accordance with the function 80+2n (n: cumulative age) and diastolic blood pressure value is about 1/3 - 2/3 of systolic blood pressure. Weight and BMI are associated with hypertension. Age is associated with hypertension. Girls have higher hypertensive rate than boys.
Blood Pressure ; Abstracting and Indexing ; Child

The mistakes in English abstracts of medical literatures influence the international communication of medical information. The misuse of words, grammar mistakes, and improper expressions are common problems. Moreover, nonstandard expressions also include the names of Chinese herbal medicines, numbers, punctuations, and so on.
Abstracting and Indexing ; Periodicals as Topic ; Translations

Abstracting and Indexing as Topic ; Academic Dissertations as Topic

Abstracting and Indexing as Topic ; Periodicals as Topic ; Translations ; Writing

Abstracting and Indexing as Topic ; Neoplasms ; Periodicals as Topic

No abstract available.
Abstracting and Indexing as Topic* ; Evidence-Based Medicine* ; Methods*