Subjectivity of Female College Students' Menstruation Experience / 여성건강간호학회지

This study is an attempt to provide fundamental information on how to manage menstruation discomforts by surveying the subjective viewpoints on menstruation from female college students. Utilizing 40 Q-samples in Seoul between May 1 and June 30, 2001, data has been collected from 30 randomized P-samples. Data analysis involves the PC QUANL Program, Q-factor analysis, and Principal Component Analysis. The result of the data analysis gives four types of categorization as follows: The first is the "inconvenience-recognizing" type that includes 10 subjects out of 30. During menstruation, this type of subject usually complained of physical discomfort such as pain in the lower back and abdomen. Even though they considered menstruation to be troublesome, they did nothing about the inconvenience. The second is the "positively-accepting" type that includes 7 subjects out of 30. This type of subject takes menstruation as natural and even a privilege for a woman. They think they are blessed to conceive a new life through their biological cycle. Therefore unlike other types, they rarely complained of any physical and psychological discomfort caused by menstruation. The third is the "destined course" type that includes 6 subjects out of 30. This type of subject endures the discomfort caused by menstruation without any medication or medical treatment. They appeared to take menstruation as fate without having any specially negative or positive attitude. The fourth is the "negatively-accepting" type that includes 7 out 30. This type of subject takes menstruation as negative, even if it is unavoidable for a woman. Menstruation, very negatively taken, felt uncomfortable and caused them to have pain in the lower back and abdomen and an oversensitive nervous system. The four types of attitude towards menstruation show their own characteristic features in dealing with menstruation. Understanding these features in detail will enhance nursing implementation which is related to menstruation. This study is intended to provide fundamental information with which nurses can deal with menstruation problems by investigating subjective viewpoints about menstruation. This study is a stepping stone on which further study on this subject can build to develop an effective and efficient way to deal with menstruation discomforts.

Morphologic study of effects of Prostaglandin E2 and evening primrose oil on early orthodontic tooth movement in rats / 대한치과교정학회지

To study the effect of prostglandin E2 and evening primrose oil on orthodontic tooth movement in rats, one hundred and sixty rats were divided into four groups of 40 rats each. One group, injected with saline on the palate subperiosteally, served as a control group. A second and third group were injected subperiosteally on the palate with PGE2 10microgram and evening primrose oil 10mg respectively. The fourth group was given indomethacin 20microgram/ml orally by water bottle. The maxillary first molar was moved mesially from the incisors using a 50gm force rubber band. In each group at the 1, 2, 3, 5, and 7th day, 4 rats were examined by light microscope, and 4 by electron microscope. The obtained results were as follows: 1. Osteoclastic activity was maximum at the 3rd day in the PGE2 group on the interradicular alveolar bone of the first molar, followed by the evening primrose oil group, control group, and indomethacin group. 2. Root resorption and vacuolar changes were maximum in the PGE2 group. 3. At the 3rd day of the PGE2 group, the osteoclasts showed well developed ruffled borders and clear zones. At the same day, the evening primrose oil group also showed well developed ruffled borders and clear zones, but less than the PGE2 group. 4. At the 3rd and 5th day of the PGE2 group, fibroblasts showed phagocytized fragmented collagen fibers in the cytoplasm. At the 7th day of the PGE2 group, fibroblasts showed collagen fibers forming at the cell membrane surface.