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황승현,이희대,정준,안성귀,이학민 연세대학교의과대학 2012 Yonsei medical journal Vol.53 No.3
Purpose: Some recent trials suggest that postoperative adjuvant radiotherapy (RT) may be safely omitted after breast-conserving surgery (BCS) for some patients with ductal carcinoma in situ (DCIS). In this study, we reviewed clinical outcomes of patients with DCIS treated with partial mastectomy (PM) without adjuvant RT. Materials and Methods: Medical records of 28 patients (29 breasts) with DCIS who were treated with PM, but without RT, between April 1991 and December 2010 were retrospectively analyzed. Based on established criteria (2.0 cm or less in size and no comedonecrosis), 18 patients were treated without RT after PM. Seven patients (8 breasts) who did not receive RT due to refusal were also included in this study. Three other patients were excluded because data concerning comedonecrosis were not available. Results: For the 25 patients included in this study, the mean age of the 18 patients who met the criteria was 47.9±6.2 years, and 47.6±12.7 years for the 7 patients who did not. The mean sizes of the primary tumors were 0.6±0.4 cm and 0.9±0.3 cm, respectively, in these two groups. Among these 25 patients (26 breasts) treated without RT, we observed no ipsilateral breast tumor recurrence or mortality within a mean follow-up of 84 months. Conclusion: Based on this small number of cases, patients with DCIS, who were selected for tumor size less than 2 cm and absence of comedonecrosis, may be treated successfully with BCS; adjuvant RT may be omitted.
황승현,임준섭,오정탁,김명준,한석주,최승훈,Hwang, Seung-Hyun,Lim, Jun-Sup,Oh, Jung-Tak,Kim, Myung-Joon,Han, Seok-Joo,Choi, Seung-Hoon 대한소아외과학회 2004 소아외과 Vol.10 No.2
Recently, the incidence of perinatally detected asymptomatic adrenal gland masses has increased because of widespread use of radiological diagnostic tools. However, optimal treatment of these masses has not been determined. The aim of this study is to elucidate the treatment guideline of perinatally diagnosed adrenal gland masses. The authors retrospectively reviewed the medical records of the 11 patients with asymptomatic adrenal gland mass, detected perinatally, between 1999 and 2004. Six cases were detected by prenatal ultrasound and 5 cases were incidentally detected by postnatal ultrasound. Six patients (surgery group) underwent mass excision. The pathologic diagnoses were neuroblastoma (n=4), adrenocortical adenoma (n=1) and adrenal pseudocyst (n=1). The indications for operation were suspicion of neuroblastoma (n=5) or absence of size decrease during observation (n=1). Three of the 5 suspicious cases of neuroblastoma and one case under observation were proven to be neuroblastoma. There was no surgical complication in the urgery group. All neuroblastoma patients have been well during the follow up period ($24.4{\pm}14.4$ month) without evidence of recurrence. Five cases (observation group) were closely observed because of the benign possibility or size decrease in follow up ultrasound. During the observation period ($39{\pm}21$ week), 4 cases showed complete spontaneous resolution and 1 case showed markedly decreased size of the mass but could not be followed up completely. Surgical resection of the perinatally diagnosed asymptomatic adrenal gland mass is a safe treatment method especially in case of suspicion of neuroblastoma, but closed observation can be applied.
다크 모드에서 모바일 시각정보요소 카드의 시각적 인지도와 피로도 연구
황승현,이현진 한국색채학회 2022 한국색채학회 논문집 Vol.36 No.1
This study set out to analyze colors of high visual recognition and low visual fatigue at the tone level and their saturation scope in a mobile interface card fit for the dark mode in low illuminance, as well as propose a color scheme. For these purposes, the study analyzed color palettes for the dark mode in the Android system, then we tested color scheme samples of card elements in app layout to collect factors affecting visual recognition and fatigue. The survey answers with Likert and ordinal scales of the test were analyzed to prove study hypotheses. The findings show that the tone levels and colors had an effect on the visual recognition and fatigue items except for the items of color understanding and the items of composition understanding based on Likert scale survey. The analysis results identified a couple of colors of high visual recognition including yellow at the tone levels of 50, 100, and 300, blue at the tone levels of 50 and 300, and purple at the tone level of 100. Blue had low visual fatigue, and so did teal and purple at the tone level of 50. Both blue and purple had a low level of ocular discomfort like teal, which recorded lower visual fatigue than them. The analysis results identified purple and teal at the tone level of 100, and purple was found in all the items of visual fatigue. Yellow and teal were analyzed as the colors with the low visual fatigue at the tone level of 300. Yellow had a low level of ocular discomfort like blue, which recorded a lower level of ocular discomfort than yellow. Blue and yellow of high visual recognition were high in saturation, and teal and purple of low visual fatigue were lower in saturation than blue and yellow.
Two Wives in the Faded American Dream: Death of a Salesman and The Subject Was Roses
황승현 한국현대영미드라마학회 2020 현대영미드라마 Vol.33 No.1
Both Death of a Salesman and The Subject Was Roses are set in the post-war 1940s and present middle-aged homemakers in crisis. They each include representations of a generation of women who were caught in a fading American family dream from the perspectives of the late 1940s and the mid-1960s in America. Often the female wife character has been approached by playwrights and academics as a supporting role who is a housewife residing in the private space defined by family. She is often shown as a mentally unbalanced entity or the cause of a husband’s failure. Focusing on the private space of the housewife in Arthur Miller’s Death of a Salesman(1949) and in Frank Gilroy’s The Subject Was Roses(1964), this article compares the wife characters from the two plays that were written fifteen years apart to demonstrate a cultural continuance of the exclusion of women from opportunities to obtain the American Dream through their own efforts and an emerging societal transition in the 1960s to the awakening awareness of a woman’s possibilities of personal achievement.