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최광성 대한의사협회 2013 대한의사협회지 Vol.56 No.1
The scalp hair is composed of one hundred thousand of hairs. Each hair goes through the three phases of the hair cycle, which causes the hair to turn from an anagen hair into a catagen hair,then into a telogen hair, and finally into a new anagen hair. The number of hairs is maintained at a relatively constant level because each hair has its own hair cycle. The hair of Koreans is relatively thicker than that of Caucasians and Africans but its growth rate and density are lower. There are various factors that influence hair growth such as hormones, nutritional status, and drugs. However,androgen is most important among these factors and, particularly, androgenetic alopecia is caused by androgen and genetic factors. Because excessive dihydrotestosterone produced by 5α-reductase is of the greatest importance in androgenetic alopecia, finasteride or dutasteride,which inhibits the action of 5α-reductase, is effective in treating androgenetic alopecia. Also,minoxidil is widely used as it promotes hair growth. Furthermore, there are various types of hair diseases and specialized examination is required for differential diagnosis.
최광성,강동우,최충 한국지역고용학회 2018 한국지역고용학회 학술대회 Vol.2018 No.07
본 연구는 대졸자가 첫 직장에서 두 번째 직장으로 이행할 때, 지역이동이 이주자의 임금에 미치는 효과를 이중차분매칭법으로 분석하였다. 지역이동을 수도권과 비수도권 간의 이동으로 정의하였고, 특 히 지역이동의 방향성을 고려하여 수도권과 비수도권 상호 이동의 임금상승효과를 각각 추정하였다. 실증분석을 위해 대졸자직장이동경로조사(2010GOMS)를 이용하였으며, 성향점수 추정에는 대졸자의 개인 특성뿐만 아니라 대학수학능력시험 백분위 점수 및 지역특성 변인을 포함하였다. 분석결과, 수도 권에서 비수도권의 이동은 통계적으로 유의하지 않았으나, 비수도권에서 수도권으로 이동한 경우에는 통계적으로 유의한 정(+)의 임금상승효과가 나타났다. This paper examines the impact of internal migration on wage growth among college graduates using Propensity Score Matching methods. We define migration as moving between Seoul Metropolitan Area (SMA) and non-SMA based on the locations of graduates’ first and second jobs. We also take the direction of migration into account for examining the wage premium in SMA. In order to estimate the impact of migration on wage growth, we use the Graduate Occupational Mobility Survey (2010GOMS) coupled with other supplementary data such as College Scholastic Ability Test score and local characteristic variables. The results reveals that graduates moving from SMA to non-SMA do not experience significant wage growth. However, we find that graduates moving from non-SMA to SMA experience an increase in their monthly wage about 170,000 ~ 186,000 KRW on average (9.5 ~ 10.3% of their monthly wage on the first job).