• Title/Summary/Keyword: ruin

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Effect of Equilibration Tine and Developmental Stages on the Survival of Mouse Embryos Cryopreserved by Vitrification in EFS Solution (Ethylene Glycol을 이용한 유리화 동결시 평형시간과 배 발달단계별 생쥐 배의 생존성)

  • 공일근;정기화;노규진;조성근;이은봉;박충생
    • Journal of Embryo Transfer
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    • v.9 no.2
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    • pp.173-180
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    • 1994
  • The present experirnents on cryopreservation were carried out to investigate effect of solution toxicity, equilibration time and cell stages on the post-thaw survival of mouse morulae and blastocyst embryos cryopreserved by vitrification in EFS solution. The mouse embryos were exposed to the EFS solution in one step at room temperature, kept in the EFS solution during different period for toxicity test, vitrified in liquid nitrogen and thawed rapidly. After the mouse morulae embryos were exposed to EFS solution for 2 and 5 ruin. at room temperature and then they were washed in 0.5 M sucrose solution and basal mediurn(D-PBS + 10% FCS), they were cultured to examined cryoprotectant toxicity induced injury during exposure, most of embryos developed to expanded blastocysts(100 and 90.0%). However, when the exposure time was extended to 10 and 20 min, these development rates dropped dramatically in 10 ruin. (75.0%) and 20 ruin. (4.5%), respectively. When the compacted morulae were vitrified in EFS solution after equilibration for 2 and 5 min, the embryos have developed to normal blastocyst following thawing, washing and culture processes was 89.3 and 89.6%. However, when the exposure time was expanded to 10 ruin, this survival rate dropped to 68.8%. When the blastocyst were vitrified in EFS solution after equilibration for 2, 5 and 10 minutes, the survival rate of embryos which developed to normal blastocyst following thawing and culture processing were 58.5, 46.7 and 22.4%, respectively. The optimal time of equilibration of mouse morula and blastocysts in EFS solution seemed o be 2 and 5 ruin.

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THE ULTIMATE RUIN PROBABILITY OF A DEPENDENT DELAYED-CLAIM RISK MODEL PERTURBED BY DIFFUSION WITH CONSTANT FORCE OF INTEREST

  • Gao, Qingwu;Zhang, Erli;Jin, Na
    • Bulletin of the Korean Mathematical Society
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    • v.52 no.3
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    • pp.895-906
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    • 2015
  • Recently, Li [12] gave an asymptotic formula for the ultimate ruin probability in a delayed-claim risk model with constant force of interest and pairwise quasi-asymptotically independent and extended-regularly-varying-tailed claims. This paper extends Li's result to the case in which the risk model is perturbed by diffusion, the claims are consistently-varying-tailed and the main-claim interarrival times are widely lower orthant dependent.

ASYMPTOTIC DISTRIBUTION OF THE DISCOUNTED PROPER DEFICIT IN THE DISCRETE TIME DELAYED RENEWAL MODEL

  • Bao, Zhen-Hua;Wang, Jing
    • Bulletin of the Korean Mathematical Society
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    • v.48 no.2
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    • pp.325-334
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    • 2011
  • In this paper we consider the discrete time delayed renewal risk model. We investigate what will happen when the distribution function of the discounted proper deficit is asymptotic in the initial surplus. In doing this we establish several lemmas regarding some related ruin quantities in the discrete time delayed renewal risk model, which are of significance on their own right.

A Compound Poisson Risk Model with a Two-Step Premium Rule

  • Song, Mi Jung;Lee, Jiyeon
    • Communications for Statistical Applications and Methods
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    • v.20 no.5
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    • pp.377-385
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    • 2013
  • We consider a compound Poisson risk model in which the premium rate changes when the surplus exceeds a threshold. The explicit form of the ruin probability for the risk model is obtained by deriving and using the overflow probability of the workload process in the corresponding M/G/1 queueing model.

Analysis of a Ruin Model with Surplus Following a Brownian Motion (브라운 운동을 이용한 보험 상품의 파산 모형 연구)

  • Han, Soo-Hee;Lee, Eui-Yong
    • The Korean Journal of Applied Statistics
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    • v.19 no.3
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    • pp.579-585
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    • 2006
  • We consider a ruin model where the surplus process is formed by a Brownian motion. If the level of surplus exceeds V, then we assume that a insurer invests an amount of S to other place. In this paper, we apply martingale methods to the surplus process and obtain the expectation of period T, time from origin to the point where the level of surplus reaches either V or 0. As a consequence, we finally derive the total and average amount of surplus during T.

A MARTINGALE APPROACH TO A RUIN MODEL WITH SURPLUS FOLLOWING A COMPOUND POISSON PROCESS

  • Oh, Soo-Mi;Jeong, Mi-Ock;Lee, Eui-Yong
    • Journal of the Korean Statistical Society
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    • v.36 no.2
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    • pp.229-235
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    • 2007
  • We consider a ruin model whose surplus process is formed by a compound Poisson process. If the level of surplus reaches V > 0, it is assumed that a certain amount of surplus is invested. In this paper, we apply the optional sampling theorem to the surplus process and obtain the expectation of period T, time from origin to the point where the level of surplus reaches either 0 or V. We also derive the total and average amount of surplus during T by establishing a backward differential equation.

Effect of Wet-Cupping at Dachu(Dazhui)-point on Fever in Patients with Stroke (중풍환자의 발열에 대한 대추혈 사혈의 효과)

  • 손동혁;이영구;김영석;배형섭;이경섭;조기호
    • The Journal of Korean Medicine
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    • v.22 no.3
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    • pp.119-128
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    • 2001
  • Objectives: Daechu (Dazhui: GV 14 (Governor Vessel))-point is located between the spinous process of the 7th cervical vertebra and that of the 1st thoracic vertebra. GV 14 has been used to treat high fever, neck pain, common cold, headache and so on. Fever may badly affect the improvement of stroke patients, so we investigated whether wet-cupping at GV 14 had effects on fever. Methods: In this study, 100 stroke patients were studied from Nov. 1999 to Oct. 2000. They were divided into the Sample group (n=49) and Control group (n=5l). The Sample group (n=49) was divided into Sample-Severe (n=2l), Sample-Mild (n=12), and Sample-Normal groups (n=16) and the Control group (n=5l) was divided into Control-Severe (n=8) and Control-Mild (n=43). We checked body temperature 6 times (just before treatment, after 30 ruin., 60, 90, 120 (2 hrs.), and 240 ruin. (4 hrs.)) in the Sample group and 3 times (just before treatment, after 120 min. (2 hrs.), and 240 ruin. (4 hrs.)) in the Control group. Results: In comparison with fever between before treatment and after 2 and 4 hours in each group, fever in the Sample subgroups decreased significantly in all cases, fever in the Control subgroups didn't decrease significantly in most cases except fever after 4 hours in the Control-Mild group. In comparison with fever differences between the Sample and Control group, fever of the Sample group more significantly decreased than that of the Control group in all comparisons. In comparison with fever among sample subgroups, fever of the Sample-Severe group decreased more than that of the Sample-Mild group but it was not significant. Conclusions: This study suggested that wet-cupping at GV 14 has significant effects on fever in stroke patients. We hope that this treatment will be used more widely as an emergent treatment.

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Preservation and Utilization Plan of Sangju Yibugok Earthen Fortification Ruin (상주 이부곡토성 유적의 보존 및 활용방안)

  • JANG Choonghee
    • Korean Journal of Heritage: History & Science
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    • v.56 no.2
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    • pp.222-243
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    • 2023
  • In this study, we looked at how to preserve and use the Yibugok earthen fortification ruin in Sangju, which has recently been actively investigated and researched. Now that the coronavirus pandemic has become a reality, a utilization plan using local historical and cultural resources can be the starting point for regional revitalization. To this end, this study first reviewed the historical value of the Sangju Yibugok earthen fortification. The historical and cultural resource value of the fortification was reviewed in recent archaeological achievements along with the results of existing literature research, and distortion in its utilization was avoided. Next, an analysis of the perception of the demand class and local residents, the subject of utilization, was conducted with visitor statistics and surveys. This is because empathy for historical and cultural resources by the demand class and local residents, who are the main agents of utilization, is the most important factor in the use of cultural assets. Based on the theoretical review presented above, the use cases of ancient fortification ruins were examined in the last chapter 4, and a utilization plan for the fortification was presented focusing on empathy. This study was conducted with a focus on the historical value of the use of the fortification ruins, the empathy of the demand class, and the public. In order to overcome the crisis in Sangju, a high-risk area due to population decline, various measures must be proposed, and establishing historical and cultural identity at the center of Sabeolguk and enhancing its image through various utilization measures can be one of the alternatives.

A Study on the costume Styles of Femme Fatale in Film Noir - focused on < Double Indemnity(1944) > - (필름 느와르에 나타난 팜므 파탈의 복식유형 연구 - <이중배상(1944)>을 중심으로 -)

  • Kim, Hye-Jeong
    • Journal of Fashion Business
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    • v.15 no.4
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    • pp.1-15
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    • 2011
  • Femme Fatale in Film Noir is a wicked woman character who seduces the male partner to a ruin. In the film, the dress style is of extreme importance for the personality creation of the character as well as the development of the plot. With this background, I have looked over the Femme Fatale dress style that appears in the movie . First, it expresses Femme Fatale which stresses the feminine trait by a dress style with enlarged chest and hip parts and long, slim silhouette with tight waist and knee line. Second, the Femme Fatale with pretended purity presents narcissistic satisfaction like a saint virgin by wearing a neck-high one-piece dress embellished with frills, but the use of mirror represents self-alienation and the vanity of purity. Third, the Femme Fatale with its military dress style presents authoritative sternness which leads seduced male into ruin with its destructive power. Fourth, wearing jersey type or knitted wear that sticks to the body presents sensual Femme Fatale. Fifth, the tulle, chiffon, and white handkerchief used for the creation of grotesque Femme Fatale represents harmlessness and prohibition of immoral behavior, and the black gloves, pillbox, and the number on the tulle present her uneasy psychological state from the fear of being discovered after murdering her husband. On the other hand, the see-through tulle presents alluring sensual beauty. Sixth, the combination of the dialogue in the final sequence and drapery type as in Greek goddess represents the saint virgin of salvation who acknowledges her own fault and returns to her purity again. In addition, accessories and others made from shining material represent hidden conspiracy through simple dress and contradictory dynamics, and shoes embellished with bonbon, etc represent sexual implications in connection with male.