가정전문간호사의 비암성 말기환자 간호행위 시간 분석

이하늘,이종은 한국가정간호학회 2019 가정간호학회지 Vol.26 No.2

Purpose: To investigate the duration of each nursing activity performed by home care nurses for non-cancer patients and the relationship between patients’ palliative prognostic index (PPI) and duration of each nursing activity. Methods: Nursing activities performed for six non-cancer terminal patients were timed using a stopwatch, and 18 parameters were measured by visiting each patient thrice. The mean and standard deviations of duration for each category of nursing activities were computed. The relationship between category-specific duration of nursing activities and PPI was analyzed with Spearman’s correlation and multiple regression analysis. Results: Among nursing activities, the highest greatest duration of time was spent on traffic time (11.91 min), followed by urinary catheter management (10.65 min) and insertion and management of nasogastric tube (9.03 min). In terms of nursing categories, after excluding movement time, the greatest duration of time was spent on excretion care (5.48 min), nutrition care (5.40 min), and medication (3.82 min). PPI correlated with hygiene care, excretion care, and patient and information management. Multiple regression analysis revealed that PPI increased with increasing duration of hygiene care. Conclusion: These study findings provide grounds for the increased nursing time of hygiene care for people reaching the end of life.

기능성소화불량 환자에서 변증유형과 설 지표의 상관성 연구

이하늘,정해인,이현진,조윤재,금창열,한아람,하나연,김진성 대한한방내과학회 2021 대한한방내과학회지 Vol.42 No.6

Objectives: The aim of this study was to analyze the correlation between patterns determined by pattern identification of functional dyspepsia (FD) and tongue features, including tongue coating and tooth marks, in FD patients. Methods: We reviewed the clinical records of 68 FD patients who visited the Department of Digestive Diseases of Kyung Hee University Korean Medicine Hospital from September 1, 2020 to August 31, 2021. The subjects were evaluated with a computerized tongue image acquisition system (CTIS) and by pattern identification of FD. Measurement included the percentage of tongue coating, tooth mark levels, and pattern scores. Results: Statistically significant negative correlations were noted between the scores of the pattern of ‘spleen and stomach deficiency and cold' (SSDC) and the percentage of tongue coating in whole, center, and root of the tongue body. However, no other patterns were correlated with any parameter measured by CTIS. No significant difference was noted in the percentage of tongue coating and the tooth mark level between the patterns. Conclusions: This study demonstrated that the pattern of SSDC was significantly associated with the percentage of tongue coating. We suggest that the percentage of tongue coating could be a useful indicator for identifying the degree of patterning of SSDC in patients with FD.

활성화함수와 학습노드 진행 변화에 따른 건축 공사비 예측성능 분석

이하늘,윤석헌 한국BIM학회 2022 KIBIM Magazine Vol.12 No.2

It is very important to accurately predict construction costs in the early stages of the construction project. However, it is difficult to accurately predict construction costs with limited information from the initial stage. In recent years, with the development of machine learning technology, it has become possible to predict construction costs more accurately than before only with schematic construction characteristics. Based on machine learning technology, this study aims to analyze plans to more accurately predict construction costs by using only the factors influencing construction costs. To the end of this study, the effect of the error rate according to the activation function and the node configuration of the hidden layer was analyzed.

SSIM 목적 함수와 CycleGAN을 이용한 적외선 이미지 데이터셋 생성 기법 연구

이하늘,이현재 한국군사과학기술학회 2022 한국군사과학기술학회지 Vol.25 No.5

Synthetic dynamic infrared image generation from the given virtual environment is being the primary goal to simulate the output of the infra-red(IR) camera installed on a vehicle to evaluate the control algorithm for various search & reconnaissance missions. Due to the difficulty to obtain actual IR data in complex environments, Artificial intelligence(AI) has been used recently in the field of image data generation. In this paper, CycleGAN technique is applied to obtain a more realistic synthetic IR image. We added the Structural Similarity Index Measure(SSIM) loss function to the L1 loss function to generate a more realistic synthetic IR image when the CycleGAN image is generated. From the simulation, it is applicable to the guided-missile flight simulation tests by using the synthetic infrared image generated by the proposed technique.

타액분비저하에 따른 구강작열감증후군 환자의 임상적 특징 비교

이하늘,김동윤,백소영,정해인,이현진,조윤재,하나연,김진성 대한한방내과학회 2020 대한한방내과학회지 Vol.41 No.5

Objectives: The aim of this study was to investigate the clinical characteristics of patients with Burning Mouth Syndrome (BMS) due to hyposalivation (HS). Methods: We reviewed the clinical records of 39 BMS patients who visited the Department of Digestive Diseases of Kyunghee Korean Medicine Hospital from March 1st, 2020 to July 31st, 2020. The subjects were classified according to the presence or absence of hyposalivation and both groups were compared for the proportion of coated tongue, heart rate variability (HRV), Ryodoraku, and the numeral rating scale (NRS) score of tongue pain results. Results: The BMS with Hyposalivation (HS group) and the BMS without Hyposalivation (Non-HS group) showed a significant difference in the proportion of coated tongue and the NRS score for tongue pain. The NRS score was significantly higher in the Non-HS group and the proportion of coated tongue was lower. However, no significant differences were noted in several HRV parameters between the two groups. The most frequent accompanying symptoms were xerostomia and dyspepsia. Conclusions: The results of this study suggest that hyposalivation might be one of the main causes of tongue pain, the key complaint in BMS patients. Sympathetic/parasympathetic imbalance might not be a main contribution of hyposalivation in BMS. Instead, factors such as the number of medications taken seem to correlate with hyposalivation in BMS. This results could be useful in the management of BMS patients with hyposalivation in clinical practice.

수생태계에서 ZnO, TiO₂나노입자 응집체가 물벼룩(Daphnia magna)에 미치는 영향

이하늘,이병우,박찬일,김무찬,Lee, Ha-Neul,Lee, Byeong-Woo,Park, Chan-Il,Kim, Mu-Chan 해양환경안전학회 2014 해양환경안전학회지 Vol.20 No.5

This study is unrefined ZnO, $TiO_2$ nanoparticles is expose M4 medium to search nanoparticle aggregation and Daphnia magna was any effect by immobilization and mortality. ZnO and $TiO_2$ nanoparticle powder-size is respectively 20 nm and 40 nm. but, M4 medium has about respectively as 1333 nm and 1628 nm, 40 to 70 times were agglomerated. Immobilization of ZnO and $TiO_2$ nanoparticles was influenced both time and concentration the higher to swimming of D.magna. Especially, The immobilization of D.magna in nano-ZnO is greater than that influence in nano-$TiO_2$. Mortality of ZnO nanoparticle is higher rate at long time and high concentration. $TiO_2$ nanoparticle observed mortality at 10ppm concentration after 72h. Consequently, when Nanoparticles is introduced into ocean. Particle size become grow. Additionally, aggregation be caused affect aquatic ecosystems.

당뇨병을 동반하지 않는 심부전 환자에서 SGLT2 Inhibitor의 심장기능에 대한 효과

이하늘,이해원,금민정,고종희,김수현,손은선,유윤미 한국병원약사회 2024 병원약사회지 Vol.41 No.3

Background : Extensive clinical studies have demonstrated that irrespective of diabetes status, sodium glucose co-transporter 2 inhibitors (SGLT2i) effectively reduce heart failure-related hospitalizations, and are advantageous in enhancing cardiac function. However, limited domestic studies have focused on the effects of SGLT2i in non-diabetic heart failure (HF) patients. Therefore, this study aims to investigate the cardiac function effects of SGLT2i in Korean HF patients without diabetes. Methods : This retrospective study analyzed electronic medical records from January 2021 to December 2022. We focused on adult HF patients without diabetes who started SGLT2i therapy at Tertiary Hospital. The evaluation of cardiac function improvement involved comparing echocardiographic parameters before the initiation of SGLT2i therapy, and at intervals ranging (3 to 12) months post-therapy. Results : This study comprised 128 patients, divided into two groups based on left ventricular ejection fraction (LVEF) and SGLT2i type. The median duration of follow-up was 189 days. Following treatment with SGLT2i, significant reductions were observed in left ventricular end-diastolic dimension (−2.7 mm; p<0.01), left ventricular end-systolic dimension (−3.3 mm; p<0.01), left ventricular mass index (−11.5 g/m2; p<0.01), and left atrium volume index (−4.5 mL/m2; p<0.01). Furthermore, significant improvement in LVEF was observed, showing an increase of 3.9% (p<0.01). The enhancement of cardiac function following SGLT2 inhibitor treatment was notably more significant in patients with LVEF ≤ 40%. Conclusion : The findings of this study demonstrate that in Korean non-diabetic HF patients, SGLT2i led to significant improvements in cardiac function, as evidenced by echocardiographic parameter alterations. Notably, these improvements were more pronounced in patients with reduced ejection fraction. Additionally, the study found no significant difference in cardiac function outcomes between empagliflozin and dapagliflozin treatments. This suggests that SGLT2i may offer a viable therapeutic option for managing HF with reduced ejection fraction in non-diabetic patients.

침수지역 이동형 배수시스템 개발을 위한 리빙랩 운영

이하늘,백선욱,김수전 한국수자원학회 2024 물과 미래(한국수자원학회지) Vol.57 No.8

A comprehensive review of dietary supplements mission-specific health and performance enhancement in military soldiers

이하늘,김윤희,강수민,김하윤,김종희,김우기,박홍석,고광웅 한국식품과학회 2025 Food Science and Biotechnology Vol.34 No.6

Soldiers undergo intensive physical training, maintain high levels of concentration, and require rapid recovery from various traumas, making them highly specialized individuals. Under high physical and mental stress conditions, soldiers experience health issues related to decreased muscle function, impaired immunity, depression, and cognitive decline. A growing need exists for dietary supplements to mitigate these issues, and the usage patterns of such supplements are continuously increasing. Therefore, as dietary supplement consumption rises within the military, a sophisticated approach to addressing nutritional supplement requirements is essential. We discuss health problems that may arise under stressful conditions in soldiers, suggesting various nutritional supplements that are essential to address these issues. In conclusion, these nutritional supplements can be used as promising interventions for numerous health problems, including enhanced muscle function, improved immunity, mental stress alleviation, and cognitive enhancement. This ultimately suggests a contribution to military personnel health and the strengthening of national defense capabilities.

미용 종사자가 지각하는 조직문화와 자아탄력성이 직무스트레스에 미치는 영향

이하늘,진용미 한국미용예술경영학회 2024 미용예술경영연구 Vol.18 No.11

본 연구는 미용종사자가 지각하는 조직문화와 자아탄력성이 직무스트레스에 미치는 영향에 대해 조사하였으며, 향후 미용종사자의 직무스트레스와 같은 문제점들을 해결하는데 도움이 되고 미용종사자가 지각하는 조직문화와 자아탄력성에 따라 미용업에 긍정적인 영향을 기여할 수 있도록 자아탄력성 증진에 대한 접근 방안을 모색하는 것에 연구목적이 있다. 서울, 경기 지역에 거주하는 미용종사자를 대상으로 설문조사를 실시하였으며 설문지는 총 400부를 배포하여 321부를 최종 분석 자료로 활용하였다. 분석 결과는 다음과 같다. 첫째, 미용종사자가 지각하는 조직문화는 직무스트레스에 영향을 미치는 것으로 나타났다. 조직문화의 관계문화, 교육문화 요인에 대한 성향이 높을수록 직무스트레스의 환경, 업무요인은 감소하는 부(-)의 관계로 나타났다. 둘째, 미용종사자가 지각하는 자아탄력성이 직무스트레스에 영향을 미치는 것으로 나타났다. 자아탄력성의 통제성, 사회성 요인에 대한 성향이 높을수록 직무스트레스 환경, 업무요인은 감소하는 부(-)의 관계로 나타났다. 본 연구 결과, 첫째, 팀워크와 창의성을 중시하는 조직문화를 만들고 다양한 분야의 미용교육을 도모하며 직원 간 기술공유를 통해 대인관계에 대하여 긍정적인 영향을 끼칠 뿐만 아니라 미용기술을 발전시킬 수 있을 것으로 사료된다. 둘째, 과중한 업무 시간을 유연하게 조절할 수 있도록 미용실의 출근과 퇴근을 자율화하여 워라벨을 권장하여 직무스트레스를 감소시킬 수 있을 것으로 사료된다. 셋째, 편안하고 안전한 작업 공간을 마련하고 효율적이고 유연한 예약 관리와 같은 시스템을 도입해 직원들의 업무 부담을 개선시켜 직무스트레스가 줄어들 것으로 사료된다. 넷째, 충분한 휴식과 규칙적인 운동을 통해 마음의 균형을 유지하고 긍정적인 사고를 키워 어려움을 성장의 기회로 극복할 수 있는 자아탄력성의 성향을 증진시켜 직무스트레스를 극복하는데 도움이 될 것으로 사료된다. 본 연구가 향후 미용종사자들의 직무스트레스와 같은 문제점들을 해결하는데 도움이 되고 기여할 수 있기를 기대하며 직무스트레스를 줄이기 위한 다양한 방법의 연구가 지속되기를 바란다. This study investigated the effects of organizational culture and self-resilience perceived by beauty workers on job stress, and it helps solve problems such as job stress of beauty workers in the future, and according to the organizational culture and self-resilience perceived by beauty workers, the beauty industry. The purpose of the study is to find an approach to improving self-resilience so that it can contribute to a positive effect. A survey was conducted on beauty workers living in Seoul and Gyeonggi Province, and a total of 400 copies of the questionnaire were distributed and 321 copies were used as the final analysis data. The analysis results are as follows. First, it was found that the organizational culture perceived by beauty workers had an effect on job stress. It was found that the higher the tendency of organizational culture to related culture and educational culture factors, the lower the environment of job stress and work factors. Second, it was found that the self-resilience perceived by beauty workers had an effect on job stress. The higher the controllability of self-resilience and the tendency to social factors, the lower the job stress environment and work factors were found to be a negative (-) relationship. As a result of this study, first, it is believed that it will be possible to create an organizational culture that values teamwork and creativity, promote beauty education in various fields, and develop beauty skills as well as positively affect interpersonal relationships through skill sharing between employees. Second, it is thought that job stress can be reduced by encouraging work and work by autonomizing the commute of beauty salons so that heavy work hours can be flexibly controlled. Third, it is thought that job stress will be reduced by providing a comfortable and safe work space and introducing a system such as efficient and flexible reservation management to improve the work burden on employees. Fourth, it is thought that it will help to overcome job stress by enhancing the tendency of self-resilience to overcome difficulties through growth opportunities by maintaining a balance of mind and developing positive thinking through sufficient rest and regular exercise. It is hoped that this study will help and contribute to solving problems such as job stress of beauty workers in the future, and that research on various methods to reduce job stress will be continued.