• 문화기술의 융합
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• 제7권3호
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• pp.269-276
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• 2021

본 연구는 IT업계 종사자들을 대상으로 업무시간 외 상시연결성이 일과 삶의 갈등에 미치는 영향관계를 살펴보기 위해 시도되었다. 분석 결과, IT업계 종사자들이 지각하고 있는 업무시간 외 상시연결성은 일과 삶의 갈등에 유의한 영향을 미치는 것으로 나타났다. 또한 업무시간 외 상시연결성은 IT분야 종사자들이 지각하는 직무불안정성의 모든 하위요인인 무력감, 직무상실 가능성에도 부정적 영향을 미친것으로 파악되었다. 직무불안정성요인이 일과 삶의 갈등에 미치는 영향 분석에서는 무력감 요인은 일과 삶의 갈등에 유의한 영향을 미치고 있었으나 직무상실 가능성 요인은 일과 삶의 갈등에 유의한 영향을 미치지 않는 것으로 나타났다. 아울러 직무불안정성(무력감, 직무상실 가능성)은 IT업계 종사자들이 지각하고 있는 업무시간 외 상시연결성과 일과 삶의 갈등의 영향관계에서 부분적 매개역할을 하는 것으로 나타났다.

• Journal of the Korean Wood Science and Technology
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• 제44권6호
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• pp.880-889
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• 2016

To evaluate the resistance of wood to decay caused by fungi, sapwood and heartwood of red pine (Pinus densiflora) and sapwood and heartwood of larch (Larix kaempferi) were conducted. Wood samples were immersed for 96 h in pyroligneous liquor. Then, the brown-rot fungus, Fomitopsis palustris, was used to examine the decay resistance of red pine and larch. Weight and density of wood from the all conditions increased after immersion treatment. Weight loss after decay resistance test was also dropped with a immersion treatment. The lowest weight loss indicated at immersion-treated heartwood of larch. Immersion treatment using pyroligneous liquor effectively increased the resistance of wood to decay caused by fungi.

• BMB Reports
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• 제56권1호
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• pp.2-9
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• 2023

Hair follicles in the skin undergo cyclic rounds of regeneration, degeneration, and rest throughout life. Stem cells residing in hair follicles play a pivotal role in maintaining tissue homeostasis and hair growth cycles. Research on hair follicle aging and age-related hair loss has demonstrated that a decline in hair follicle stem cell (HFSC) activity with aging can decrease the regeneration capacity of hair follicles. This review summarizes our understanding of how age-associated HFSC intrinsic and extrinsic mechanisms can induce HFSC aging and hair loss. In addition, we discuss approaches developed to attenuate ageassociated changes in HFSCs and their niches, thereby promoting hair regrowth.

• Child Studies in Asia-Pacific Contexts
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• 제6권1호
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• pp.1-16
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• 2016

From 1953 to 2015, approximately 200,000 children born in Korea were adopted into foreign countries. Many studies have focused on Korean adoptees growing up in the US, as the majority of these children were adopted by American families. In comparison, research on Korean transracial adoptees raised in European countries is limited. Thus, the current study aims to highlight the journey of Korean transracial adoptees from Europe to Korea. Three participants narrated their life stories as adoptees in two separate interview sessions. The findings of this study call attention to the adoptees' ongoing reconsideration of their identity as they assimilate life experiences within two disparate cultural settings in Europe and Korea. The study found that ambiguous loss faced by the adoptees from their childhood in Europe continued to their adulthood in Korea. Major themes of the participants' narratives in their journey from Europe to Korea focused on their feelings of loss and the lack of belongingness. This study found that the sense of loss and the lack of belongingness changed over time. Participants were active agents in the process of their journey from Europe to Korea, as they constantly worked to adapt to and improve their situation in face of adversity.

• 농업과학연구
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• 제33권2호
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• pp.159-166
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• 2006

Threshing loss was increased due to dropping of the threshing efficiency when the 4 row head-feed combine harvested 5 row rice to improve harvesting performance of a combine. Reasonable design criteria were examined to determine the ranges of both of feed rate and the length of threshing drum for the 4 row head-feed combine being used as a 5-row combine. Harvesting performance increased as working width or working speed increased, it resulted in 15% increase when the working width increased from 4 row to 5 row. Harvesting operations of the 4 row combine performed normally in the 4 row rice in threshing loss less than 1%, however, threshing loss increased to 2.25% in the 5 row due to poor threshing efficiency. The length of threshing drum was increased from 710 mm to 810 mm as well as the speed of crop feed chain was increased from 0.61 m/s to 0.75 m/s so as to improve the poor threshing efficiency resulted from the enlarged working width from the 4 row to the 5 row, which would decrease threshing loss less than 1%.

• BMB Reports
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• 제48권7호
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• pp.373-379
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• 2015

Humans have acquired many distinct evolutionary traits after the human-chimpanzee divergence. These phenotypes have resulted from genetic changes that occurred in the human genome and were retained by natural selection. Comparative primate genome analyses reveal that loss-of-function mutations are common in the human genome. Some of these gene inactivation events were revealed to be associated with the emergence of advantageous phenotypes and were therefore positively selected and fixed in modern humans (the "less-ismore" hypothesis). Representative cases of human gene inactivation and their functional implications are presented in this review. Functional studies of additional inactive genes will provide insight into the molecular mechanisms underlying acquisition of various human-specific traits. [BMB Reports 2015; 48(7): 373-379]

• Journal of Ecology and Environment
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• 제30권3호
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• pp.265-269
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• 2007

The loss of nitrogen and phosphorus from sediments in two watersheds, one naturally regenerating and one artificially planted, in Sacheon-myun, Gangneung-si, Gangwon Province, were measured two years after a forest fire in 2000. Sediment losses occurred five times in the course of the year. In the artificially planted watershed, $50{\sim}140$ times more nitrogen and $54{\sim}139$ times more phosphorus were lost with sediments during heavy rains, from July to August, than in the naturally regenerating watershed. When the typhoon Rusa struck the country, 1,389 times more nitrogen and 1,647 times more phosphorus were lost from the artificial watershed. In spite of the limited scope of this study, these results suggest that artificially planted watersheds are extremely vulnerable to catastrophic natural disasters such as typhoons. Elevated loss of nutrients in the artificially planted watershed might have resulted from the mechanized silvicultural practices employed immediately after the fire. To maximize soil preservation, the timing and necessity of plantation practices should be reconsidered, and rapidly regenerating vegetation should be protected to promote nutrient uptake and to mitigate nutrient loss from burned forests.

• 농촌지도와개발
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• 제29권2호
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• pp.81-98
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• 2022

The purpose of this study is to examine the mediating effect of a sense of self-integration in the relationship between death anxiety and death anxiety on the quality of life for the elderly living in rural areas. First, death anxiety among the elderly living in rural areas was found to have a negative effect on the quality of life, and among the sub-elements of death anxiety, the anxiety of loss of existence and the anxiety of the death process were negative on the quality of life. Second, it was found that there is a positive effect on the sense of self-integration, which is a parameter such as anxiety about loss of existence, anxiety about the death process, and anxiety about post-mortem outcomes. Third, it was confirmed that the sense of self-integration mediates between death anxiety and quality of life. Based on the results of this study, several discussions and suggestions were made to improve the quality of life of the elderly living in rural areas by improving the sense of self-integration and reducing death anxiety.

• 한국식물학회:학술대회논문집
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• 한국식물학회 1999년도 Proceedings of the 17th Symposium on Plant Biology Environmental Stress and Photosynthesis
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• pp.42-54
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• 1999

• 한국심리학회지 : 문화 및 사회문제
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• 제13권2호
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• pp.17-32
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• 2007

상실이란 일반적으로 개인이 가장 의미 있다고 생각하는 물건, 사람, 소유 혹은 생각을 박탈 당하는 것으로 일생에 있어 불가피한 경험이며, 특히 고령자의 특성상 이와 같은 경험에 노출될 가능성이 높다. 상실로 인한 부정적 정서, 즉 상실감은 자연스럽고 정상적인 것이지만, 이를 원활히 극복하지 못하는 경우 심리·사회적인 부적응을 겪을 수 있다. 따라서 본 연구에서는 고령자의 상실감이 어떤 요소들로 구성이 되어있는지 알아보고, 이것이 고령자의 자아통합감에 어떤 영향을 미치는지 알아보고자 하였다. 만 65세 이상의 고령자 97명을 대상으로 자료를 수집하여 분석한 결과, 상실감의 요인은 '경제적 상실', '사별 상실', '건강 상실', '관계의 상실'로 구분되었으며 이들 요인들이 전체적으로 '죽음에 대한 수용'을 제외한 나머지 자아통합감의 요인들과 부적인 상관을 보였다. 특히 '경제적 상실'로 인한 상실감은 '죽음에 대한 수용'과 '노령에 대한 수용'을 제외한 나머지 자아통합감 하위요인들에 부적인 영향을 미치고 있었으며, '건강 상실'과 '관계의 상실'도 각각 '노령에 대한 수용' 및 과거부터 현재까지를 포함하는 생에 대한 태도 및 만족도에 부적인 영향을 미치는 것으로 나타났다. 한편, 고령자 상실감 척도의 '사별 상실' 요인과 자아통합감의 '죽음에 대한 수용' 요인은 모든 분석단계에서 통계적으로 유의한 결과를 보이지 않았다.