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호텔 직원의 감정노동이 육체적·정신적 스트레스와 역할 외 행동에 미치는 영향: 특1급 호텔 일선 직원을 대상으로 (Effects of Five-star Hotel Frontline Employees' Emotional Labor on Physical/Mental Stress and Extra-role Behavior)

  • 오희균
    • 한국콘텐츠학회논문지
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    • 제15권6호
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    • pp.487-498
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    • 2015
  • 본 연구는 호텔 직원의 감정노동이 육체적 정신적 스트레스 및 역할 외 행동과 어떠한 인과구조를 형성하는지 실증 분석함으로써, 인사관리 측면의 실무적 정보를 제공하고 육체적 스트레스에 관한 연구의 부재를 해소하는 것에 주목적을 두고 있다. 이를 위해 서울 시내 특1급 호텔 직원으로부터 264개의 표본을 추출하였으며, 주요 분석결과는 다음과 같다. 첫째, 감정노동의 표면적 행위는 육체적 정신적 스트레스에 정(+)의 영향을 미쳤으며, 내면적 행위는 정신적 스트레스에만 부(-)의 효과를 보일 뿐, 육체적 스트레스에는 유의하지 않았다. 둘째, 내면적 행위는 역할 외 행동에 정(+)의 영향력을 보인 반면, 표면적 행위의 효과는 유의미하지 않았다. 셋째, 정신적 스트레스는 역할 외 행동에 부(-)의 영향을 미치는 것으로 확인되었으며, 육체적 스트레스 또한 역할 외 행동에 유의한 효과를 나타냈다. 하지만 육체적 스트레스는 예상된 부(-)의 이론적 부호와는 달리 정(+)의 영향을 도출하였는데, 결론에서는 이러한 결과를 자기 보상 심리에 기초하여 논의하였다.

Biotin 표지법에 의한 질트리코모나스의 표면 항원 분리 (Identification of surface antigens of Trichomonas vaginalis)

  • 우남식;민득영
    • Parasites, Hosts and Diseases
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    • 제31권1호
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    • pp.37-42
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    • 1993
  • 질트리코모나스(Trichomonasvqqin is)의 항원성 변이를 관찰하기 위해 원충의 표면 항원 (surface antigen)을 N-hydmwsuccinlmide-biotin(N반5-biotin)으로 표지 하고 표지된 표면 단백질과 토끼의 항혈청으로 면역침전(Immunoprecipitation; IP)시켰으며 sodium dodec낀 sulfate-polyacrylamide gel electrophoresis (SDS-PAGE)와 전기영동이적법을 시 행하였다. 살아있는 원충을 NHS-biotin으로 표지하여 표면 단백질을 분리하고 이를 질트리코모나스에 면역된 토끼 항혈청과 면역침전 시켰던 바 46, 60, 68, 90, 130 그리고 220 kDa에서 6개의 단백질이 항원성을 나타내었으며 질토리코모나스의 분리주인 HY-1, HV-15 및 ATCC 50148 주간에 차이는 없어 이들 6개 분획이 표면 항원성 발현에 중요한 역할을 할 것으로 생각된다.

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인공 항문계를 이용한 대두박 isoflavones의 생체 이용성 평가

  • 김경진;지규만
    • 한국가금학회:학술대회논문집
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    • 한국가금학회 2000년도 제17차 정기총회 및 학술발표
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    • pp.91-93
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    • 2000
  • Soybean meal(SMB) has not only been an important source of protein, but also a major source of isolfavones(IF) for poultry diet. Since the IF is one of effective phytoestrogens, evaluation of bioavailability of the phytochemicals for poultry and development of an animal model for assessment of the availability should be essential for its practical application. Present study was to develop bird model for assessing their bioavailability. No reports for such measurments with poultry could have every been found. Eight, 6-wk-old, layer-type, male birds were divided into two groups of four birds; normal (N) and colostomized(COL). Each bird was tube-fed a SMB sample at a level of 1% body weight. Samples from blood, urine and feces(COL birds) or urine+feces (N) were collected at 0, 2, 8, 15, 24 and 48 hours after the feeding. Plasma and urine samples were treated with -glucuronidase and fecal samples with 4N HCl for measurement of genistein(GE) and daidzein (DA) with HPLC set with an electrochemical detector. Maximum peaks of plasma IF appeared at 2 h after the meal for both birds groups. However the IF peak for N group was GE, while that for COL group was DA. Plasma DA levels for COL birds were always higher than those of GE, which was in opposite trend for N birds. This trend observed in the N birds is in accordance with those reported in rats fed SBM. In conclusion the results seem to suggest that colostomy as an attempt to separate urine from feces in birds affected the IF metabolism in the intestine and may not be a proper bird model to measure the IF bioavailability.

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소아기에 있어 비만도와 골성숙도의 상관성 (Correlation between Bone Maturation and Obese Degree in Childhood)

  • 김홍일;신현택
    • 한방비만학회지
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    • 제6권1호
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    • pp.107-115
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    • 2006
  • Objectives : It has been suggested that obesity in childhood may lead early menarche and rapid bony maturation. The purpose of this study is to investigate correlation between bone maturation and obese degree in childhood in Korea. Methods : Height, body weight, BMI, percent body fat were taken 138 patients. Ultrasonic scan was taken through calcaneous of the right foot to evaluate bone age. $DA({\Delta}age)$ was calculated from the difference of bone age and chronological age, and it was used in correlation with obese degree. Results : 1. The average age of patients was $11.91{\pm}2.86$ years old in boys, $11.44{\pm}2.27$ years old in girls. 2. The average BMI was $20.92{\pm}4.53kg/m2$ in boys, $19.76{\pm}4.05kg/m2in$ girls, and average percent body fat was $25.13{\pm}8.23%$ in boys, $27.66{\pm}5.95%$ in girls. 3. The average OI(osteo index) was 37.88 in boys, 36.64 in girls, and average bone age was $12.00{\pm}2.61$ years old in boys, $11.81{\pm}2.11$ years old in girls. 4. There was significant correlation between $DA({\Delta}age)$ and PBF in boys, but no significant correlation with BMI(p<0.05). 5. There was significant correlation between $DA({\Delta}age)$ and PBF, BMI in girls(p<0.01). 6. There was significant correlation between RA and OI(p<0.01). Conclusion : It is suggested that obese degree may have an impact on early bony maturation especially in case of girls.

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감마선 조사 계육의 품질특성 (Quality Characteristics of Gamma-Irradiated Chickens)

  • 곽희진;강일준
    • 한국식품저장유통학회지
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    • 제6권4호
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    • pp.411-416
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    • 1999
  • 닭고기에 감마선 3, 7 kGy를 조사한 후 저장 기간 및 온도에 따라 육색변화, 단백질 분해, TBA가, 산가, 휘발성 염기태 질소 등을 측정였다. 육색변화에서 조사직후 조사선량에 관계없이 저장기간의 경과에 따라 metmyoglobin은 함량이 다소 증가되는 경향이었고 냉동저장에서는 조사에 따른 영향없이 저장기간에따라 점차 감소하는 경향이었다. 전기영동 결과는 감마선조사군과 비조사군 사이의 변화는 거의 없었으며, 저장기간에따라 약 105 kDa의 단백질 subunit 가 분해되기 시작하여 8주후에는 완전소실 되었고, 특히 약 32 kDa에서 40 kDa의 분자량을 가진 단백질 subunit의 경우 모든 시험군에서 저장기간에 따라 서서히 분해되면서 소실되거나 두개의 분획으로 분리 되어 새로운 band를 형성하였다. 한편, TBA가의 경우 냉장, 냉동 저장시료 모두 저장기간 및 감마선 조사 선량의 증가에 따라 크게 증가하였고 산가는 조사선량의 증가에 따라서는 오히려 감소하였다. VBN함량 변화의 경우에는 냉장 저장 8주후의 비조사 시료는 7 kDy조사 시료에 비해 약 4배의 증가를 나타내었다.

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Comparison of the Nutritional Composition of Bullfrog Meat from Different Parts of the Animal

  • Zhu, Yanli;Bao, Min;Chen, Chong;Yang, Xiaoli;Yan, Wenliang;Ren, Fazheng;Wang, Pengjie;Wen, Pengcheng
    • 한국축산식품학회지
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    • 제41권6호
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    • pp.1049-1059
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    • 2021
  • The objective of this study was to evaluate the nutritional content of bullfrog meat from different parts of the animal, including fore-chest, thigh and calf. Bullfrog meat was found to be a rich source of proteins, essential amino acids and minerals, but with a low fat content, compared with other aquatic meat products. There was no significant difference (p>0.05) between thigh and calf in mineral content (K, P, Na, Mg, Ca, Zn, Fe, Cu, and Mn), but the contents of K, P, and Mg were higher in thigh and calf than in the fore-chest (p<0.05). The salt-soluble, water-soluble and insoluble protein bands in sodium dodecyl sulphate-polyacrylamide gel electrophoresis (SDS-PAGE) electrophoresis, from fore-chest, thigh and calf were similar, with the most abundant bands being 35 kDa (salt-soluble protein), 35-48 kDa (water-soluble protein) and 48 kDa (insoluble protein). The results showed that the insoluble protein content in the fore-chest meat was higher than that in the thigh meat and calf meat, but the salt-soluble protein fraction was the most abundant in thigh meat. These results showed that the nutrients in different parts of bullfrog meat were different.

신장(新疆) 위구르자치구 지역의 불탑형식 - 『대당서역기(大唐西域記)』의 기록과 현존 유구를 중심으로 - (A Study on the Stupas in Xinjiang Uyghur Area - Focused on Da Tang Xi-Yu-Ji(大唐西域記) and Stupa Remains -)

  • 천득염;정지윤;신규나
    • 건축역사연구
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    • 제31권4호
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    • pp.71-86
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    • 2022
  • This study examines the process of the introduction of stupa, which has originated in India, to the Xinjiang Uyghur region and the features of the stupas in the Xinjiang Uyghur region in detail. This study examines the layout of the buildings in temple compounds and the types, structural elements, and construction methods of the stupas in the Xinjiang Uyghur region in particular by looking into the content of the Da Tang Xi Yu Ji and remaining stupas, which provide examples of stupas at the time. This study finds that due to the characteristics of dry deserts, stupas in Xinjiang Uyghur region, where assimilation between Eastern and Western cultures is seen, were mostly made by pressing clay into a mold and had no interior spaces. Also, construction materials and techniques had been developed and improved in a way that enabled stupas to combat the challenging desert conditions. However, the stupas in this region differed significantly from the wooden tower-like stupas discovered in central China(zhongyuan 中原). The shape of the dome of most stupas in Xinjiang Uyghur region was chosen under the influence of the Gandharan style. Some of the stupas in the region have taken the general forms of the wooden stupas and the others have taken many forms, from cylindrical drums to towers. Also, there have been forests of stupas and stupas similar in form to chaityas and stupas of Vajrayana. Such different forms were transformed and modified through regional history and it was related to the peoples and cultures that produced and used stupas. Stupas evolved into distinct forms in Xinjiang Uyghur region in this way.

Transgenic cucumber expressing the 54-kDa gene of Cucumber fruit mottle mosaic virus is highly resistance and protect non-transgenic scions from soil infection

  • Gal-On, A.;Wolf, D.;Antignus, Y.;Patlis, L.;Ryu, K.H.;Min, B.E.;Pearlsman, M.;Lachman, O.;Gaba, V.;Wang, Y.;Yang. J.;Zelcer, A.
    • 한국식물병리학회:학술대회논문집
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    • 한국식물병리학회 2003년도 정기총회 및 추계학술발표회
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    • pp.148.2-149
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    • 2003
  • Cucumber fruit mottle mosaic tobamovirus (CFMMV) causes severe mosaic symptoms with yellow mottling on leaves and fruits, and occasionally severe wilting of cucumber plants. No genetic source of resistance against this virus has been identified. The genes coding for the coat protein or the putative 54-kDa replicase were cloned into binary vectors under control of the SVBV promoter. Agrobacterium-mediated transformation was peformed on cotyledon explants of a parthenocarpic cucumber cultivar with superior competence for transformation. R1 seedlings were evaluated for resistance to CFMMV infection by lack of symptom expression, back inoculation on an alternative host and ELISA. From a total of 14 replicase-containing R1 lines, 8 exhibited immunity, while only 3 resistant lines were found among a total of 9 CP-containing lines. Line 144 homozygous for the 54-kDa replicase was selected for further resistance analysis. Line 144 was immune to CFMMV infection by mechanical and graft inoculation, or by root infection following planting in CFMMV-contaminated soil. Additionally, line 144 showed delay of symptom appearance following infection by other cucurbit-infecting tobamoviruses. Infection of line 144 plants with various potyviruses and cucumber mosaic cucumovirus did not break the resistance to CFMMV. The mechanism of resistance of line 144 appears to be RNA-mediated, however the means is apparently different from the gene silencing phenomenon. Homozygote line 144 cucumber as rootstock demonstrated for the first time protection of a non-transformed scion from soil inoculation with a soil borne pathogen, CFMMV.

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DaVinci SP-based simultaneous bilateral partial nephrectomy from the midline transperitoneal approach: a case report

  • Young Hwii Ko;Jong Gyun Ha;Jae Yoon Jang;Yeung Uk Kim
    • Journal of Yeungnam Medical Science
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    • 제41권1호
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    • pp.48-52
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    • 2024
  • While simultaneous bilateral partial nephrectomy with a conventional multiport robot has been consistently reported since the 2010s, the introduction of the DaVinci SP system (Intuitive Surgical, Sunnyvale, CA, USA) could provide a novel way to perform surgery on bilateral kidneys while innovatively reducing the number of incisions. In our first report worldwide, the patient with bilateral small renal mass (2.0 cm for the left and 1.5 cm for the right side) and preoperative normal renal function was placed in the lateral decubitus position on an inverted bed. After tilting the bed to be as horizontal as possible, a 4-cm incision was made in the lower part of the umbilicus for the floating trocar technique. The partial nephrectomy was performed reliably as with the conventional transperitoneal approach, and then the patient could be repositioned to the contralateral side for the same procedure, maintaining all trocars. Total operation time (skin to skin), total console time, and the left- and right-side warm ischemic times were 260, 164, 27, and 23 minutes, respectively, without applying the early declamping technique. The estimated blood loss was 200 mL. The serum creatinine right after the operation, on the first day, 3 days, and 90 days after surgery were 0.92, 0.77, 0.79, and 0.81 mg/dL, respectively. For 90 days after the procedure, no complications or radiologic recurrence were observed. Further clinical studies will reveal the advantages of using the DaVinci SP device for this procedure over traditional multiport surgery, maximizing the benefit of a single port-based approach.

Saccharomyces cerevisiae에서 발현한 곤충 항균펩티드, defensin의 정제 및 특성 조사 (Purification and Characterization of an Insect Antibacterial Peptide, Defensin, Expressed in Saccharomyces cerevisiae)

  • 강대욱;이준원;김보연;안종석
    • 생명과학회지
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    • 제12권4호
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    • pp.483-489
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    • 2002
  • S. cerevisiae에서 glucoamylase 유전자의 promoter와 signal sequence 그리고 MF$\alpha$1의 prosequence를 이용하여 합성 곤충 defensin를 발현하고 항균활성을 보유한 형태로 분비하는데 성공하였다. Defensin의 여러 생화학적인 특성을 조사한 결과 열 안정성이 높아 10$0^{\circ}C$에서 30분간 가열하여도 항균활성을 온전히 유지하였으며 조사한 pH 영역, 2.0-12.0에서 항균활성의 변화가 없었다. 또한 여러 단백질 분해효소를 처리하면 항균활성이 완전히 사라졌으나 전분질 분해효소, 섬유소분해효소 및 지질분해효소의 처리는 항균 활성에 전혀 영향이 없었다. 황산암모늄침전, SP-Sepharose column cormatography, RP-HPLC 등의 조작을 통해 defensin을 순수한 형태로 정제하였으며 Tricine-SDS-PAGE를 통해 분자량이 약 4.0 kDa임을 확인하였고 정제한 defensin은 항균활성을 보유하였다.