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중고령 남성 은퇴자의 은퇴만족도 변화궤적 유형과 영향 요인
송시영 한국노년학회 2024 한국노년학 Vol.44 No.2
The purpose of this study was to identify patterns of retirement satisfaction trajectory and their associated factors among middle-aged and older male retirees using data from the 5th (2014) to 8th (2020) waves of the Korean Longitudinal Study of Ageing (KLoSA). To this end, a three-step approach to the Latent Class Growth Model (LCGM) and multinomial logistic regression analysis were conducted on the sample of 543 male retirees over the age of 50 who responded that they had fully retired during the 5th to 8th waves. As a result of the analysis of the Latent Class Growth Model analysis, the retirement satisfaction of middle-aged and older male retirees was derived as 'high-level of retirement satisfaction maintaining type', 'increased retirement satisfaction type', and 'low-level of retirement satisfaction maintaining type'. The results of the multinomial logistic regression analysis showed that subjective economic status, frequency of social activities, subjective health status, and age significantly predicted the trajectories of retirement satisfaction, and in particular, it was found that those with high subjective economic status were more likely to belong to the high-level of retirement satisfaction maintaining type than the low-level of retirement satisfaction maintaining type or the increased retirement satisfaction type. This study examined the patterns of retirement satisfaction trajectory among middle-aged and older male retirees by subdividing them, and in particular discussed what level of preparation would be needed to prepare for their retirement.
중노년기의 수면잠재기(sleep onset latency)와 인지기능 간의 연관성 연구
송시영,강현서,김율리,이현정,이은 한국노년학회 2019 한국노년학회 학술발표논문집 Vol.2019 No.2
Ⅰ. 연구배경 및 목적 Ⅱ. 연구방법 Ⅲ. 연구 결과 Ⅳ. 논의
송시영 대한소화기학회 2008 대한소화기학회지 Vol.51 No.2
Pancreatic cancer is currently the major leading cause of cancer-related deaths in the Western countries with an overall 5-year survival rate of less than 3%. The key aim of investigation is to identify the cellular population in which some of the earliest molecular events occur, presumably the ultimate target for carcinogenic insult. Advances in pathological classification and genetics have improved our descriptive understanding of this disease. However, important aspects of pancreatic cancer biology remain poorly understood. Factors associated with the increased risk of pancreatic cancer include smoking, chronic pancreatitis, diabetes, prior gastric surgery, and exposure to radiation or chemicals. A number of syndromes have been identified with the increased incidence of pancreatic cancer, including familial atypical multiple-mole melanoma syndrome, hereditary nonpolyposis colorectal cancer, and hereditary pancreatitis, etc. Recently, there have been growing evidences that stem cell biology could provide new insights into the understanding of cancer biology. Three postulates regarding the relationship between stem and tumor cells have been proposed. First, the similarities in the mechanims that regulate self-renewal of normal stem cells and cancer cells. Second, the possibility that tumor cells might arise from normal stem cells and third, the notion that tumors might contain ‘cancer stem cells' - rare cells with indefinite proliferative potential which drive the formation and growth of tumors. New insights for the cancer stem cells and their possible markers in pancreatic cancer have been suggested recently. Further observations of molecular and cellular events in the early stage of pancreatic carcinogenesis may have important implications regarding the cellular lineage responsible for pancreatic ductal metaplasia and neoplasia, and provide further support for the presence of stem cell capabilities within mature pancreatic epithelium. (Korean J Gastroenterol 2008;51:71-83)