• 한국환경복원기술학회지
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• 제19권3호
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• pp.93-102
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• 2016

An invasive disturbance species has caused harm to biodiversity and ecosystem. To address the issue, identifying the characteristics of a habitat for invasive disturbance species is considered for forest management. This study analyzed a status of plant species by field survey based on belt transect method in the capital areas and established a predictive model for invasive disturbance species by logistic regression. As results of the study, the number of herb, vine, and invasive disturbance species and a canopy cover of tree would decrease from the forest edge to core areas (p<0.001). The predictive model was derived with variables of altitude, Topographic Wetness Index, distance to forest edge, and canopy cover of tree. It can be useful in estimating the presence or absence of species and predicting its spatial distribution. Further studies are needed to identify the pathway of introduction, spread, and possibility of germination for understanding the status of invasive disturbance species in more depth.

• 한국융합학회논문지
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• 제8권12호
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• pp.179-187
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• 2017

본 연구의 목적은 국내 전립선비대증 환자의 수면장애 영향요인을 규명하기 위함이다. 훈련된 연구보조원이 J시의 164명 전립선비대증 환자에게 문장을 설명하고 읽어주어 질문지를 작성하였다. 질문지는 전립선비대증상, 불안, 우울, 수면장애로 구성되었다. 수면장애는 소득, 규칙적인 운동 및 질병의 수에 따라 통계적으로 유의한 차이가 있었다. 수면장애와 전립선비대증상(r=.45, p<.001), 불안(r=.59, p<.001), 우울(r=.42, p<.001)간에 통계적으로 유의한 상관관계가 있었다. 수면장애 영향요인은 불안(${\beta}=.41$, p<.001), 소득(${\beta}=-.36$, p<.001), 전립선비대증상(${\beta}=.28$, p=.021)이었다. 이들 변수는 수면장애에 대해 41.2%의 설명력을 보였다. 이와 같은 연구결과는 전립선비대증 환자의 수면장애를 줄이기 위해 전립선비대증상과 불안의 융합적 관련성을 고려한 관리 전략 개발의 기초자료로 활용할 수 있다.

• 여성건강간호학회지
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• 제21권3호
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• pp.197-206
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• 2015

Purpose: The purpose of this study was to examine the effects of light therapy on sleep disturbance and depression in climacteric women with menopausal symptoms. Methods: The research design was a nonequivalent control group pre test-post test design. Data were collected from September 29, 2013 to November 11, 2013. Participants included 17 climacteric women in an artificial light therapy group, 17 climacteric women in a sun light therapy group and 16 climacteric women in a control group. Measures consisted of the sleep disturbance, depression, melatonin, and serotonin. Results: There was a statistically significant difference of Korean Sleep Scale A (F=53.87, p<.001), and melatonin (F=31.19, p<.001) among three groups. There was a statistically significant difference of Self-Rating Depression Scale (F=121.86, p<.001), and serotonin (F=102.37, p<.001) among three groups. Conclusion: Artificial and sun light therapy can be applied as a supportive nursing intervention to subjects with sleep disturbance and depression in climacteric women with menopausal symptoms. Artificial and sun light therapy is expected to be a complementary alternative intervention for health management of the subjects with sleep disturbance and depression in climacteric women with menopausal symptoms.

• 한국환경복원기술학회지
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• 제19권1호
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• pp.155-170
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• 2016

This study established the definition of invasive disturbance species for a sustainable management and biodiversity, and derived the influence factors caused by the species. To define the species, the paper reviewed similar words such as alien species and invasive species, using standard definitions. Also reviewed the results of recent research on the factors of the species. The paper defined the invasive disturbance species as an species whose establishment and spread threaten ecosystems, habitats or species with economic or environmental harm including native and non-native. Through the reviews, The factors were classified as geographic (altitude, slope, and soil, etc.), climate (temperature, precipitation, climate change, etc.) and, anthropogenic (land use, population, road, and human activity, etc.), and species & vegetation structure (species property, local-species richness, and canopy, etc.). Especially, human activity such as urbanization and highways may be associated with both higher disturbance and higher propagule pressure. In the further study, it is required development of mitigation strategies and vegetation structure model against invasive disturbance species in urban forest based on this study.

• The Korean Journal of Pain
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• 제31권3호
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• pp.199-205
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• 2018

Background: Sleep disturbance and depression are becoming more recognized as important symptoms among individuals with chronic low back pain. This study evaluated the effect of stabilization exercise on pain-related disability, sleep disturbance and the psychological status of patients with non-specific chronic low back pain (NSCLBP). Methods: A total of 26 patients (M/F = 17/9) with NSCLBP with a mean age of $50.0{\pm}15.5$ took part in this study. Participants were recruited from selected hospitals in Lagos state. Ethical approval was sought and obtained from the health research and ethics committee of Lagos University Teaching Hospital Idi-araba, Lagos, Nigeria. Participants performed stabilization exercise for eight weeks consecutively and were assessed for pain-related disability, anxiety, depression, and sleep disturbance using the pain-disability index, hospital anxiety and depression scale, and the insomnia severity index at baseline, the 4th week, and the 8th week, postintervention. Results: The participants studied recorded significant reduction in pain-related disability (P = 0.001). There was also improvement in the sleep quality (P = 0.001), depression level (P = 0.001), and anxiety level (P = 0.001), post intervention. Conclusions: This study revealed that stabilization exercise is very useful in the management of sleep disturbance, pain-related disability, depression, and anxiety in NSCLBP patients.

• The Korean Journal of Ecology
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• 제26권1호
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• pp.19-22
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• 2003

군락분류학에 기초한 현존식생도를 이용하여 토지에 대한 생태적 안전성 또는 위약성을 평가하는 '잠재인간간섭도' 평가기법을 개발하였다. 4개 범주(삼림지역, 개방수역-호소와 하천, 경작지 면적, 주택-도시화의 인공 면적)에 따라 입지도에 대한 직접평가 및 간접평가로부터 격자법과 등고선법에 의한 '잠재인간간섭도(潛在人間干涉圖)를 제작하였다. 이것을 토대로 토지의 훼손 잠재성을 평가하는 '교란핵구역'과 '위약(危弱)세포구역'을 규정하고, 토지 관리를 위한 생태적 접근을 시도하였다. 사례연구로 973개의 격자(500 m×500 m)로 이루어진 부산광역시 기장군 일대의 현존식생도 상에서 이루어졌다. 사례연구 지역 내에서 '교란핵구역'은 51군데이며 '위약세포구역'은 28군데로써 대상 면적의 약 8.1%를 차지하는 것으로 나타났다. 식생학적 현존식 생도를 이용한 '교란핵구역'과 '위약세포구역'을 발굴하는 잠재인간간섭도는 토지 이용과 보존에 관한 생태학적 전략 구축에 있어서 구체적인 현장적 입지진단 정보를 제공하는 유효수단인 것으로 밝혀졌다.

• 한국건설관리학회:학술대회논문집
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• 한국건설관리학회 2001년도 학술대회지
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• pp.81-87
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• 2001

동적 변화가 상존하는 건설환경에서, 보수·리모델링 프로그램의 관리자는 자원하의 복수 프로젝트를 조정·관리하는데 어려움을 겪게 된다. 프로그램에 내재하는 불확실성과 상호종속성으로 인해, 단위작업의 지연과 그로 인한 연쇄적인 공정계획의 동요는 프로그램 전체의 안정성과 관리가능성을 저해한다. 본 논문은 먼저 건설관리에 적용되었던 생산관리기법들이 프로그램관리에 적용될 수 있는가를 살펴본 후, 프로그램 내부의 자원유동의 흐름에 주기적으로 버퍼를 설치하는 공정 안정화 모델을 제안하고자 한다. 몬테-칼로 시뮬레이션에 의한 비교실험으로 제안된 버퍼 관리모델의 성능을 프로그램의 생산성, 유연성, 그리고 안정성의 관점에서 분석하였다.

• 한국환경과학회지
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• 제13권2호
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• pp.117-127
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• 2004

The purpose of this study is to present the conditions and methods for keeping the sustainability of the landscape resources of the East Coast of Gangwon province, the Republic of Korea by investigating the landscape resources management in the area and pointing out its problems. The unit of analysis in this study is four cities and two counties located along the national road route seven in Gangwon province. The classification and characteristics of the landscape resources in this area was analyzed by a literature review, and we surveyed the tourists visiting the area and statistically analyzed the data in order to examine their satisfaction with the landscape resources management and make recommendations. The problems of the landscape resources management are: 1) the disturbance of the persistence of life by reclamation, the population reduction in the ecosystem due to the overload in environmental capacity, and the severance of space between land and water. 2) the reduction of the benefits from indirect experience by interfering with the conservation of fluxes --- the manipulation of horizontal arrangement of the landscape resource, the visual disturbance by the construction of high-storied buildings, and the disharmony between the color/image and the environment. The means for keeping sustainability of the landscape resources include the regulations of development and use, the change in the recognition of the value of landscape resources and the moral system, and the improvement of resource management skills.

• 대한통합의학회지
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• 제9권4호
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• pp.85-89
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• 2021

Background : Klippel-Trenaunay-Weber syndrome (KTS) is a rare congenital medical condition characterized by complex vascular malformation. KTS consists of a classic triad of capillary malformation (hemangioma), venous malformations and bone or soft tissue hypertrophy causing limb asymmetry. The aim of this report is to describe management for gait disturbance and foot pain in a Patient with KTS using custom-made total contact insole. Case presentation : A 32-year-old man with KTS presented with a 3-year history of gait disturbance on hard surface due to right first toe pain and Achilles tendon tightness. The patient had soft tissue hypertrophy, varicose veins and port-wine stains over the right lower limb associated with KTS. True leg length discrepancy was 2 cm. We prescribed custom-made total contact insole to protect his deformed foot and correct leg length discrepancy. The insole of right side included wedge shaped heel lift and the insole of left side included full length lift to add extra support on unaffected side. Also, we provided compression stocking and physiotherapy including manual lymphatic drainage for lymphedema and stretching exercise for tightness in right lower extremity. At 3 years follow-up, postural alignment including pelvic obliquity was improved using a custom-made total contact insole. The degree of scoliosis and foot pain were also reduced. Conclusion : An individualized and multidisciplinary approach is essential regarding the complexity of comorbidities in patients with KTS. For patients with KTS, orthotic management should be considered to prevent and correct deformities related to KTS. Active orthotic management, compression stocking and physiotherapy can enhance the quality of life and function in patients.

• 한국항해항만학회:학술대회논문집
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• 한국항해항만학회 2023년도 춘계학술대회
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• pp.254-255
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• 2023

This paper discovers a robust managerial strategy for a stochastic inventory of perishable products, where the model experiences changing factors including inner parameters and an external disturbance with unknown form. An analytical solution for the optimization problem can be obtained by applying the Hamilton-Bellman-Jacobi equation, however the policy result cannot completely suppress the oscillation from the external disturbance. Therefore, an intelligent approach named Radial Basis Function Neural Networks is applied to estimate the unknown disturbance and provide a robust controller to manipulate the inventory level more effective. The final results show the outstanding performance of RBFNN controller, where both the estimation error and control error are guaranteed in the predefined limit.