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사유림소유자의 임업지식수준에 영향을 미치는 사회경제적 제요인의 분석
조응혁,구삼회 ( Eung Hyouk Cho,Sam Hoe Koo ) 한국산림과학회 1984 한국산림과학회지 Vol.66 No.1
The study was carried out to investigate the relationship of certain socio-economic factors to the private owners` knowledge of forestry practices. The dependent variable was knowledge level in forestry, and the six independent variables were owners` age, educational level, forestland area, socio-economic status, communication and socio-psychological factors. For the study the data were collected by interviewing 258 private forest owners, and analized primarily by multiple correlation statistical technique. The sampled private owners were grouped into two categories: the common owners and model owners. 1) The average score of forestry knowledge of common owners was lower than that of model owners, and the difference was about 15 scores. The scores of other independent variables such as age, educational level, forestland area, socio-economic status, communication and socio-psychological factors of common owners were also significantly lower than those of model owners. 2) The common owners` knowledge of forestry practice were positively correlated with educational level, socio-psychological and communication variables. On the other hand, the model owners` were negatively correlated with the educational level, but positively with the socio-economic status and the socio-psychological variables. 3) The multiple correlation coefficient between the common owners` knowledge scores and six independent variables was 0.5667. About 31.46 percent of the variance of this knowledge could be explained by the communication variable, and other 1.42 percent by the socio-psychological factor. In the case of model owners, the multiple correlation was 0.5332, and about 16.62 percent of the variance of the knowledge could be explained by the communication variable, and ls.y percent by the socio-psychological factor. 4) The opportunity of communication contact through the mass media, personal communication and owner`s social participation should be augmented for the effective forestry extension works, because it is one of the results of the study that the private forest owners` knowledge in forestry was greatly affected by communication variable.
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생약복합제의 Streptozotocin 유발 당뇨 및 대사성증후군 모델 동물에서의 혈당에 미치는 효과
박한석,이연실,최세진,김진규,이윤열,구삼회,김현근,구대희,기승일,임순성 한국생약학회 2009 생약학회지 Vol.40 No.3
This study was carried out to investigate the in vivo and in vitro inhibitory effect of a traditional herbal complex (HC) extract prepared from a mixture of four oriental herbs (Dioscorea Rhizoma, Glycine soja Sieb. et Zucc, Bombycis corpus, Fermented Glycine soja) that have been widely used for the treatment and prevention of diabetes mellitus on hyperglycemia. The water extract of HC showed potent inhibitory effect on α-glucosidase with IC50 value of 1.24 mg/mL. Additionally, the ethanol extract of HC was also found to exhibit significant inhibitory effect against protein tyrosine phosphatase 1β (PTP1β), which is known as a major regulator of both insulin and leptin signaling. In the PTP1β inhibitory assay, the most active n-hexane fraction obtained from the ethanol extract of HC, was identified as a mixture of fatty acid derivatives by gas chromatography– mass spectrometry (GC-MS). In high-fat diet-low dose streptozotocin (STZ)-induced diabetic rat, the water extract of HC improved the oral glucose intolerance as compared with rosiglitazone. HC also caused a marked decrease of body weight and fasting blood glucose and a significant improvement on glucose tolerance in metabolic syndrome mice model. These findings support that this traditional HC may be useful in the control of blood glucose in diabetes mellitus and metabolic syndrome.
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