클라우드 의료장비 구현

황승미(Seung-mi Hwang),김남호(Nam-ho Kim) 한국정보통신학회 2020 한국정보통신학회 여성 ICT 학술대회 논문집 Vol.2020 No.8

한옥 게스트하우스의 서비스품질이 긍정적 감정반응과 만족 및 재방문의도에 미치는 영향

황승미(Hwang, Seung-Mi) 한국호텔외식관광경영학회 2016 호텔경영학연구 Vol.25 No.1

항공사 객실승무원의 감정노동이 소진 및 이직의도에 미치는 영향

황승미(Seung Mi Hwang),윤지환(Ji Hwan Yoon) 한국호텔외식관광경영학회 2012 호텔경영학연구 Vol.21 No.2

This study investigates the relationships between flight attendants` emotional labor, burnout, and intention of turnover intentions of those attendants who are in direct contact with passengers. The quality of their service is acritical factor in maintaining productivity and profitability in the airline industry. The study reveals that flight attendants` emotional labor has a strong impact on their mental and physical burnout, which can be extended to turnover intentions. Since the emotional labor is unavoidable, part of a flight attendant`s job description is the effective management of emotion in providing quality service to passengers. The airline industry must realize that flight attendants` emotional labor is no longer the individual`s issue but an essentialelement determining the quality of service provided. Therefore, managing emotional labor should be treated as a critical aspect of the human resources management program in order to improve service quality and reduce turnover intentions. An effective mitigation plan needs to bedeveloped to manage flight attendants` emotional labor and the subsequent impacts on business productivity. This is particularly true for lowcostcarrierairlines, which lack effective human resources management in relative terms.

한옥 게스트하우스의 서비스스케이프가 고객만족도 및 고객충성도에 미치는 영향

황승미(Hwang, Seung-Mee),박영진(Park, Young-Jin) 한국관광레저학회 2015 관광레저연구 Vol.27 No.10

Growth and Physiological Adaptations of Tomato Plants (Lycopersicon esculentum Mill) in Response to Water Scarcity in Soil

Hwang Seungmi(황승미),Kwon Taekryun(권택륜),Doh Eun-Soo(도은수),Park Mehea(박미희) (사)한국생물환경조절학회 2010 생물환경조절학회지 Vol.19 No.4

본 연구는 토마토의 토양 수분결핍조건에서의 생장과 생리적인 반응을 근본적으로 조사하기 위하여 수행되었다. 토양에 두가지 수분조건, 심한 수분결핍(-100㎪)과, 대조구인 약한 수분결핍 처리 (-25㎪)는 실시간 토양수분함량을 모니터링을 할 수 있는 토양센서와 관수 모듈을 갖춘 micro-irrigation 시스템을 고안, 온실에서 유지되었다. 토양수분함량은 30일동안 변동되었으며, -25㎪로 맞춰진 처리구는 평균 -47㎪, -100㎪ 처리구는 평균 -119㎪로 차이를 나타냈다. 이 두 가지 다른 토양수분상태에서 자란 식물체 사이의 생육을 비교해 본 결과 수분결핍상태(-100㎪)에서 자란 식물체가 대조구인 약한 수분결핍(-25㎪) 처리구에 비해 절간수의 차이없이 신장이 유의하게 감소하였으며 건물중의 축적은 더 높게 나타났다. 또한 건물중 당 엽면적의 차이 없이, 엽면적과 엽건중이 수분 결핍이 약한 처리구에 비해 수분결핍이 심한 처리구가 더 높게 나타났다. 이러한 생육상의 차이는 심한 수분스트레스가 엽두께의 변화없이 생체중의 증가와 엽면적 확보를 통해 토마토의 수분스트레스에 적응을 야기시킬 수 있음을 제시했다. 수분결핍에 따른 토마토 생육기간동안, 생리적변화를 조사한 결과, -100㎪ 처리구에서 자란 토마토가 대조구인 -25㎪ 처리구에 비해 엽의 상대수분함량의 증가와 잎의 삼투압이 낮게 나타났다. 이는 수분스트레스아래서 토마토의 더 나은 수분상태를 유지하기 위한 생리적인 적응을 설명해준다. 아울러 심한 수분스트레스는 대조구에 비해 PSII 활성과 수분활용도를 증가되었으며, 낮은 기공저항도를 나타내었다. 처리간의 광합성의 차이는 없었으며, 토마토 과실의 수와 생육량의 차이는 없었다. 이러한 결괴는 토마토 ‘Picco’가 엽형태의 변형과 삼투압, 수분활용도와 PSII의 활성을 통해 수분결핍상태에서 적응할 수 있게 만들 능력을 보여준다. 본 연구결과에서 나타난 토마토의 수분스트레스 적응 메커니즘은 토마토의 가뭄저항성 스크린에 있어서 고려되어져야 할 것으로 보인다. This study aim to investigate fundamentally the growth and physiological responses of tomato plants in responses to two different levels of water deficit, a weak drought stress (-25 ㎪) and a severe drought stress (-100 ㎪) in soil. The two levels of water deficit were maintained using a micro-irrigation system consisted of soil sensors for the real-time monitoring of soil water content and irrigation modules in a greenhouse experiment. Soil water contents were fluctuated throughout the 30 days treatment period but differed between the two treatments with the average -47 ㎪ in -25 ㎪ set treatment and the -119 ㎪ in -100 ㎪ set treatment. There were significant differences in plant height between the two different soil water statuses in plant height without differences of the number of nodes. The plants grown in the severe water-deficit treatment had greater accumulation of biomass than the plants in the weak water-deficit treatment. The severe water-deficit treatment (-119 ㎪) also induced greater leaf area and leaf dry weight of the plants than the weak water-deficit treatment did, even though there was no difference in leaf area per unit dry weight. These results of growth parameters tested in this study indicate that the severe drought could cause an adaptation of tomato plants to the drought stress with the enhancement of biomass and leaf expansion without changes of leaf thickness. Greater relative water content of leaves and lower osmotic potential of sap expressed from turgid leaves were recorded in the severe water deficit treatment than in the weak water deficit treatment. This finding also postulated physiological adaptation to be better water status under drought stress. The drought imposition affected significantly on photosynthesis, water use efficiency and stomatal conductance of tomato plants. The severe water-deficit treatment increased PSII activities and water use efficiency, but decreased stomatal conductance than the weak water-deficit treatment. However, there were no differences between the two treatments in total photosynthetic capacity. Finally, there were no differences in the number and biomass of fruits. These results suggested that tomato plants have an ability to make adaptation to water deficit conditions through changes in leaf morphology, osmotic potentials, and water use efficiency as well as psn activity. These adaptation responses should be considered in the screening of drought tolerance of tomato plants.

홍삼에탄올추출물의 염증유발인자에 대한 억제효과

최경민,황승미,임지예,고은실,박종혁,문정혜,이민정,장지은,차정단,Choi, Kyung-Min,Hwang, Seung-Mi,Lim, Ji-Ye,Ko, Eun-Sil,Park, Jong-Hyuk,Moon, Jung-Hye,Lee, Min-Jung,Jang, Ji-Eun,Cha, Jeong-Dan 한국미생물·생명공학회 2015 한국미생물·생명공학회지 Vol.43 No.2

In this study, we investigated the effects of 40% ethanol extract of Red Ginseng (RGE) on the productions of inflammatory proteins in Antigen I/II (Ag I/II)-N, a recombinant protein isolated from Streptococcus mutans -stimulated in RAW 264.7 cells. RGE inhibited the expression of Ag I/II-N-induced pro-inflammatory mediators, both mRNA and protein synthesis levels, without any cytotoxic effects. Moreover, RGE significantly inhibited Ag I/II-N induced NF-κB translocation into the nucleus by preventing the degradation of inhibitor κB-α. In conclusion, RGE down regulates the expression of pro-inflammatory genes involved in the synthesis of NO and iNOS in Ag I/II-N-stimulated RAW 264.7 cells by suppressing NF-κB activity. 본 연구에서, 우리는 S. mutans Ag I/II 재조합단백질에 의해 유도되어진 염증유발 단백질의 발현에 홍삼 40% 에탄올 추출물의 효과를 알아보고자 하였다. 홍삼에탄올추출물은 Ag I/II 재조합단백질에 의해 유도되어진 염증유발물질들의 mRNA와 단백질의 발현을 억제하였다. 더불어 홍삼에탄올 추출물은 NF-κΒ p65가 핵내로 이용하는 것이 억제하였다. 결론적으로 홍삼 40%에탄올추출물은 NF-κB의 활성에 의해 NO 생성과 iNOS 발현이 조절되어지는 것으로 생각되어지며, 염증유발 관련 유전자들의 낮은 발현을 유도하는 것으로 관찰되어졌다.

Erratum to: 홍삼에탄올추출물의 염증유발인자에 대한 억제효과 (Red Ginseng Ethanol Extract Suppressed Ag I/II-induced Up-expression ofInflammatory Mediators in RAW 264.7 Macrophages)

최경민,황승미,임지예,고은실,박종혁,문정혜,이민정,장지은,차정단,Choi, Kyung-Min,Hwang, Seung-Mi,Lim, Ji-Ye,Ko, Eun-Sil,Park, Jong-Hyuk,Moon, Jung-Hye,Lee, Min-Jung,Jang, Ji-Eun,Cha, Jeong-Dan 한국미생물 · 생명공학회 2016 한국미생물·생명공학회지 Vol.44 No.2

게스트하우스의 지각된 가치가 인적서비스 품질과 고객충성도 및 재방문의도에 미치는 영향

박영진(Young Jin Park),황승미(Seung Mi Hwang),양재영(Jae Young Yang) 한국관광연구학회 2015 관광연구저널 Vol.29 No.12

The purpose of this research is to examine the influence of the perceived value of guesthouse on human service quality, customer loyalty, and intention to revisit, in order to provide a practical implication and to be used as a basic material of guesthouse-related academic research. In order to verify this research empirically, a survey questionnaire was distributed to and collected from foreign tourists who visited hanok guesthouses in Bukchon during the survey period from March 1st, 2015 to June 30th, 2015. The collected questionnaires were to conduct its reliability analysis and validity test using the SPSS 17 statistical package program, and to test the influential relationship between the variables of Perceived Value, Human Service Quality, Customer Loyalty, and Intention to revisit, using the exploratory factor analysis and the multiple regression analysis. The results of this study are as follows. First, demonstrated that the perceived value of guesthouse had a influence on human service quality, customer loyalty, and intention to revisit. Second, human service quality had a influence on customer loyalty and intention to revisit. This showed that managers maximize the perceived value of the guesthouse and the efforts to improve the human service quality is important. Therefore, to maximize the perceived value of the guesthouse, and to improve the human service quality that can ultimately increase your customer loyalty and also intention to revisit. The result of this study was to derive practical implications would be able to contribute to activating and operating profit improved management of the guesthouse.

김치로부터 분리한 Lactobacillus acidophilus C로 발효한 홍삼 및 복분자 발효물의 비만예방 효과

문혜정,이주희,이상천,이창현,최경민,차정단,황승미,고은실,이민정,장지은,최혜란,박종혁,Moon, Hye-Jung,Lee, Joo-Hee,Lee, Sang-Cheon,Lee, Chang-Hyun,Choi, Kyung-Min,Cha, Jeong-Dan,Hwang, Seung-Mi,Ko, Eun-Sil,Lee, Min-Jung,Jang, Ji-Eun,Choi, 한국유가공학회 2015 Journal of Dairy Science and Biotechnology (JMSB) Vol.33 No.2

본 연구에서는 한국의 전통발효식품인 김치로부터 L. acidophilus를 분리 동정하고, 이 균주를 이용하여 홍삼과 복분자 미숙과를 발효시킨 조성물을 동물모델을 이용하여 항비만효과를 검토하였다. 고지방식이를 섭취시킨 C57BL/6J 마우스에 L. acidophilus C 및 홍삼 농축액과 복분자 미숙과 분말을 발효시킨 혼합발효 복합물을 6주간 투여한 결과, 혼합발효 복합물을 투여한 군에서 체중증가량, 부고환 및 신장 주위 지방의 무게, 지방세포 크기와 간조직 내 지질 축적, 혈중 포도당 농도, 혈중GOT와GPT 농도및렙틴농도를감소시켰으며, HDL-콜레스테롤과 아디포넥틴의 농도를 증가시키는 경향을 나타낸 것으로 보아, L. acidophilus C를 단독투여한 실험군에 비하여 비만을 개선시키는 것으로 나타났다. 따라서 혼합발효 복합물은 비만개선용 식품소재로서의 가능성이 있을 것으로 기대되어지며, 추후에 혼합발효 복합물의 비만 개선 메커니즘을 규명하기 위한 연구가 더 필요할 것으로 사료된다. We investigated the anti-obesity effects of Lactobacillus acidophilus C isolated from kimchi and red ginseng and black raspberry mixture fermented by this strain. Experimental samples were prepared with 10% skim milk, 1% red ginseng extract and 1% immature black raspberry powder and without red ginseng extract and black raspberry fermented by this strain at $37^{\circ}C$ for 24 hour. Male C57BL/6J mice were randomly divided into 4 groups (a normal diet group (N), a high-fat diet group (HF), a high fat diet with L. acidophilus C (C), and a high fat diet with fermented mixture (CEx)) and were orally administered daily for 6 weeks at concentration of 2,000 mg/kg body weight. The results showed that weight gain, weight of periepididymal fat and perirenal fat, adipocyte size, lipid accumulation in liver, serum glucose concentration, serum GOT and GPT concentration and serum leptin were decreased and concentration of HDL-cholesterol and serum adiponectin were increased compared to HF group. These results suggest that fermented mixture (CEx) might be helpful in improvement of high-fat diet-induced obesity than only L. acidophilus C intake.

LPS로 유도된 RAW264.7세포주에서 황금뿌리 물추출물의 항염증활성

이예은(Ye Eun Lee),박홍진(Hong Jin Park),박충범(Chung-berm Park),황승미(Seung-mi Hwang) 한국식품과학회 2021 한국식품과학회지 Vol.53 No.2

Scutellaria baicalensis water extract (SWE)는 지질 다당류 LPS로 유도된 RAW 264.7 세포에서 NO 및 전 염증성 사이토카인인 TNF-α의 생성을 세포 독성을 유발하지 않고 유의하게 억제하였다. 또한, SWE는 iNOS 및 COX-2의 단백질발현을 농도의존적으로 감소시켰으며, ERK, JNK, p38과 같은 MAPKs 계열의 인산화발현 수준을 조사한 결과 JNK와 p38의 발현 수준을 감소시켰다. 이는 SWE가 p38 인산화를 억제함으로써 iNOS, COX, 그리고 TNF-α와 같은 전 염증성 사이토카인의 발현을 감소시키며 결론적으로 NO의 생성을 억제시킨다는 결과를 도출할 수 있었다. 본 연구는 항염증 효능 검증뿐 아니라 염증대사기전의 주요인자를 탐색함으로써 황금의 기능성 소재로써의 가능성을 시사한다. Scutellaria baicalensis has been used as a traditional medicine for diarrhea, dysentery, hypertension, hemorrhaging, insomnia, inflammation, and respiratory infections. This study examined the anti-inflammatory effect of Scutellaria baicalensis water extract (SWE) in lipopolysaccharide (LPS)-induced RAW 264.7 cells. To evaluate the anti-inflammatory effect of SWE, RAW 264.7 macrophages were stimulated with LPS to induce the production of inflammation-related factors, which were measured by western blotting. In RAW 264.7 cells, SWE inhibited the production of nitric oxide (NO) without causing cell toxicity. SWE also reduced the expression of inducible NO synthase and cyclooxygenase-2 protein, as well as the production of pro-inflammatory cytokines (such as tumor necrosis factor-α). The phosphorylation levels of the mitogen-activated protein kinase family members, such as JNK and p38, were also reduced by SWE. Thus, SWE could be used as a potential anti-inflammatory agent.