• Archives of Plastic Surgery
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• 제42권5호
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• pp.532-543
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• 2015

Capsular contracture is the most common complication following implant based breast surgery and is one of the most common reasons for reoperation. Therefore, it is important to try and understand why this happens, and what can be done to reduce its incidence. A literature search using the MEDLINE database was conducted including search terms 'capsular contracture breast augmentation', 'capsular contracture pathogenesis', 'capsular contracture incidence', and 'capsular contracture management', which yielded 82 results which met inclusion criteria. Capsular contracture is caused by an excessive fibrotic reaction to a foreign body (the implant) and has an overall incidence of 10.6%. Risk factors that were identified included the use of smooth (vs. textured) implants, a subglandular (vs. submuscular) placement, use of a silicone (vs. saline) filled implant and previous radiotherapy to the breast. The standard management of capsular contracture is surgical via a capsulectomy or capsulotomy. Medical treatment using the off-label leukotriene receptor antagonist Zafirlukast has been reported to reduce severity and help prevent capsular contracture from forming, as has the use of acellular dermal matrices, botox and neopocket formation. However, nearly all therapeutic approaches are associated with a significant rate of recurrence. Capsular contracture is a multifactorial fibrotic process the precise cause of which is still unknown. The incidence of contracture developing is lower with the use of textured implants, submuscular placement and the use of polyurethane coated implants. Symptomatic capsular contracture is usually managed surgically, however recent research has focussed on preventing capsular contracture from occurring, or treating it with autologous fat transfer.

• Archives of Plastic Surgery
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• 제43권4호
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• pp.328-338
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• 2016

Nipple-sparing mastectomy (NSM) is increasingly popular as a procedure for the treatment of breast cancer and as a prophylactic procedure for those at high risk of developing the disease. However, it remains a controversial option due to questions regarding its oncological safety and concerns regarding locoregional recurrence. This systematic review with a pooled analysis examines the current literature regarding NSM, including locoregional recurrence and complication rates. Systematic electronic searches were conducted using the PubMed database and the Ovid database for studies reporting the indications for NSM and the subsequent outcomes. Studies between January 1970 and January 2015 (inclusive) were analysed if they met the inclusion criteria. Pooled descriptive statistics were performed. Seventy-three studies that met the inclusion criteria were included in the analysis, yielding 12,358 procedures. After a mean follow up of 38 months (range, 7.4-156 months), the overall pooled locoregional recurrence rate was 2.38%, the overall complication rate was 22.3%, and the overall incidence of nipple necrosis, either partial or total, was 5.9%. Significant heterogeneity was found among the published studies and patient selection was affected by tumour characteristics. We concluded that NSM appears to be an oncologically safe option for appropriately selected patients, with low rates of locoregional recurrence. For NSM to be performed, tumours should be peripherally located, smaller than 5 cm in diameter, located more than 2 cm away from the nipple margin, and human epidermal growth factor 2-negative. A separate histopathological examination of the subareolar tissue and exclusion of malignancy at this site is essential for safe oncological practice. Long-term follow-up studies and prospective cohort studies are required in order to determine the best reconstructive methods.

• 환경영향평가
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• 제22권5호
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• pp.537-546
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• 2013

In the Seoul Metropolitan Area(SMA) photochemical air pollutants, nitrogenic compound and particulate matters have increased substantially due to mobile sources, power plants and so on. Therefore 'Special Act on Seoul Metropolitan Air Quality Improvement' was enacted on 2003 in order to improve air quality in the SMA. According to the Special Act, Central and local government have developed the state implementation plan(SIP) to reduce air pollutant emissions from various local sources. One of the key elements of the SIP development is the air quality modeling since modeling results can be used to establish emissions control strategies as well as to demonstrate attainment of air quality goals for ozone, particulate matter, and so on. Air quality modeling, therefore, can be usefully utilized to investigate the effects of government's efforts according to control strategies or measures. Using the air quality model, we can determine whether the implementation plan should be revised or not. A number of questions, however, has been raised concerning accuracy, consistency and transparency of modeling results because if we do not trust modeling results, all the measures dependent on modeling becomes in vain. So, without dealing with these questions, we can not guarantee the reliability and utilizability of air quality modeling results. In this study, we tried to establish standard methodology for air quality modeling in order to ensure consistency and transparency of modeling results used in the development and evaluation of national air policy. For this purpose, we established air quality modeling guideline to provide or recommend modeling procedures, vertical and horizontal domains, input data of meteorological and air quality modeling and so on.

• Pediatric Gastroenterology, Hepatology & Nutrition
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• 제23권6호
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• pp.548-557
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• 2020

Purpose: To better understand the benefits and harms of engagement with online pediatric liver disease communities within social media. Methods: We conducted a survey of caregivers of children with liver disease participating in online pediatric liver disease communities within social media, as well as a survey of healthcare providers (e.g., physicians, surgeons, nurse coordinators) from this field to better understand the perceived benefits and harms of participation. Results: Among 138 caregivers of children with liver disease that completed the survey, 97.8% agreed social media was a good place to learn about patient experiences and 88% agreed it was a good source of general information. Among caregivers, 84.8% agreed social media helps them to better advocate for their child. While 18% agreed that the information over social media was equal to the information from their healthcare team and 19% neither agreed/disagreed, only 3% indicated they would use this information to change care without telling their provider; in contrast, among 217 healthcare providers, 55% believed social media may lead caregivers to change management without telling their team. Conclusion: Engagement with online disease-specific communities in social media yields several benefits for caregivers and, in contrast to healthcare providers' concerns, participation is unlikely to lead to problems including caregivers changing the treatment plan without first discussing these plans with their team. Openness between caregivers and medical teams about the role for social media can help to improve trust and maximize the potential benefits of engagement with these groups.

• 인터넷정보학회지
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• 제14권4호
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• pp.63-76
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• 2013

This short report introduces the general background why Brazil conference is being prepared and what topics would be undertaken and what goals are being taken into account. It overviews what differences from traditional telecommunication governance, internet governance has had in its historical development and how such differences had been formed from its technological differences and the regulatory policy shift from common carrier regulation to privatization. Moreover, the fact that open, voluntary, bottom-up, diverse stakeholder's participation had evolved throughout the historical development of the internet, had established the present multistakeholder governance model from technological standardization to addressing scheme policies. ICANN, which has governed internet addressing schemes since the earlier 2000s, had developed address policies including IANA function from Jon Postel and technical community's legacy management system into contract based formation between ICANN and gTLD, ccTLD registries. And it made dispute resolution policies responding to trademark disputes and resolved gTLD monopoly issue by introducing new TLD generation and the separation of registry and registar. However, there had been challenges on the legitimacy of ICANN due to its dependency on the Federal Government of the U.S. particularly in its oversight role over ICANN and IANA contract. WSIS raised up internet governance issues including addressing governance, and set up IGF as a discussion platform for multistakeholders to discuss and share all views on other internet related public policies. IGF's loose and non-binding discussion once frustrated governments and other stakeholders, but more focused discussion and visible outcomes have consolidated its unique role for internet governance discourses. Particularly, IGF addressed many emerging internet related issues like cybersecurity, privacy, net neuratlity, development related issues. WTPF of 2013, after WCIT debate on whether traditional telecommunication regulation could be applied to internet infrastructure, suggested other governance issues such as the transition to ipv6, IXP coordination etc. How to make sure the legitimacy of internet addressing governance and how and where other internet related public policies could be undertaken are fundamental tasks for internet governance. Brazil conference, which has been motivated by the breakdown of trust in internet governance from NSA mass surveillance revealed by Snowden, faces these questions and try to make consensus on principles, institutions and roadmap for internet governance in multistakeholder participation way.

• 한국동물위생학회지
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• 제36권3호
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• pp.193-201
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• 2013

Many consumers are increasingly concerned about the meat they eat, and accurate labelling is important due to public health, economic and legal concerns. Meat species adulteration is a common problem in the retail markets. In this study, a TaqMan$^{(R)}$ quantitative real-time polymerase chain reaction (PCR) assay was applied for its ability to quantify chicken meat, which was not indicated on the label, in 79 commercial pork products (ham, sausages, bacon and ground meat) producted by 10 different manufacturers. The amplification efficiency was 82.05% and the square regression coefficient ($R^2$) was 0.995. PCR results showed that 38.6% of ham samples, 50.0% of sausages samples, and 50.0% of ground meat samples were contaminated with chicken residuals, while the bacon samples were not contaminated with chicken residuals. Only twelve pork products of one of the manufacturers were in accordance with indicated in their labels. The PCR assay reported in this work could be particularly useful in inspection programs to verify the food labelling of commercial processed meats and to gain consumers' trust.

• 한국유기농업학회지
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• 제11권2호
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• pp.23-42
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• 2003

The study must have standpoints for the stable market construction of the Environmental-Friendly agricultural products of the quality-certificated which has rapidly grown due to a discussion of the environment and agriculture, income increase and the interests on foods stability. The survey was conducted through face-to-face interview of 200 adults who are in their twenties or more in Cheonan-city. In this research, the Environmental-Friendly agriculture was a clean agriculture not using a fertilizer or chemicals and the agriculture which protects the environment by preventing the environmental pollution. In the analyses of the consumer's willingness to pay, the rice showed 69,851 won, and a lettuce and bean-curd showed 947 won and 1.412 won respectively. In terms of current issues of the policy, to establish the stable circulation structure and consumption strategy, there must be a clearness raise of the Quality Authentication (QA) Mark. To raise the trust through quality authentication, there must be transparency raise of information by distribution stages and the thorough post management of the official institutes. Also, to persue the competitive product differentiation, there must be the settlement of the product brand on the market, development of the new production technology and a classification of consumers by incomes. Finally to construct stable distribution and price system, there must be active participation of the local agricultural cooperatives in the distribution of the Environmental-Friendly agricultural products of the quality-certificated and the understanding of the proper price of the consumer market and flexible strategy of the price change.

• 영재교육연구
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• 제24권3호
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• pp.399-420
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• 2014

이 연구는 내러티브 방식을 통해 두 명의 초등영재아동의 '행복 경험'에 대하여 주목한다. 두 명의 초등영재아동 사례를 통해 이들이 인식하는 행복 경험과 행복하지 않은 경험, 이들의 행복 조건, 더불어 이들이 행복 관련 부정정서를 줄이고 더 행복하기 위해 하는 노력은 무엇인지를 탐색하므로 영재들에게서 행복의 의미를 심층적으로 탐색하고자 하였다. 두 명의 초등영재 아동은 그들이 경험하는 강한 행복 경험으로, '내가 하고 싶은 것을 한다는 것'과 '내 힘과 노력으로 이루는 성취의 희열' 그리고 '가족의 신뢰와 사랑, 지지'를 이야기하였다. 행복해지기 위해서도 노력이 필요하며 두 초등영재아동은 '내가 좋아하는 활동으로 마음 다스리기', '될 때까지 하고 또 하기'를 통해 행복하지 않을 때 느끼는 부정적인 정서를 낮추기 위해 노력하였다. 두 초등영재아동의 행복 경험에 비추어 볼 때, 그들의 행복에 있어 인지적 측면의 지원만큼 정서적 측면의 지원이 중요하며 영재아동의 정서 문제에 부모 변인이 절대적임을 알 수 있었다. 보다 구체적으로, 부모의 과도한 간섭과 개입이 자녀를 잘 키운다는 것과 구분되는 것임을 본 연구 결과는 시사하고 있다. 본 연구의 결과와 관련하여 현장적 논의점이 탐색되었다.

• 한국산업정보학회논문지
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• 제11권5호
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• pp.150-162
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• 2006

본 연구에서는 물리적 제품을 판매하는 인터넷쇼핑몰이 판매제품을 생산하는 산업클러스터에 입지하였을 경우 얻을 수 있는 효익 요인과 경쟁전략 간의 관계를 분석하였다. 국내 주요 클러스터에 입지해 있는 인터넷쇼핑몰을 대상으로 한 설문조사에서 총 99개의 유효한 응답을 얻었다. 분석 결과, 생산자와의 정보공유, 고객확보, 신뢰증진, 업무프로세스 효율성, 부가가치 제공, 생산자 관리 등 6개의 효익요인이 추출되었다. 이어서 6개의 효익요인이 해당 인터넷쇼핑몰의 경쟁전략에 어떠한 영향을 미치는가를 알기위해 회귀분석이 수행되었으며, 그 결과 해당 쇼핑몰들이 생존하고 성장하기 위한 경쟁전략 또는 경쟁전략의 조합의 선택에 있어서 이 여섯 가지 효익요인이 큰 영향을 미친다는 사실이 나타났다.

• 한국측량학회지
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• 제22권2호
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• pp.95-103
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• 2004

최근 도심지 구조물의 고층화, 밀집화에 따른 일조권 분쟁이 물이지 않고 있다. 일조권은 관련 법규의 구체화가 이루어지지 않은 상태에 있으며 이를 해결하기 위해 합리적이고 과학적인 분쟁 해결보다 주관적 판단에 따른 조정으로 공사의 중지ㆍ지연에 따를 소송비와 시간적 손실이 발생하고 있다. 특히 기존의 연구는 분석적인 데이터가 아닌 단순 시각적 관점에 의존하여 일조 분석을 하여 민원인에게 신뢰성을 주기가 어려웠을 뿐만 아니라, 비전문가들의 구조물 건설에 따른 의사결정 유도의 한 방편으로 사용되어 왔다. 따라서 본 연구는 시뮬레이션기법을 이용한 일조량의 분석, 절기 및 시각대별로 일조분석을 하여 도심지에서 계획될 수 있는 대형토목구조물을 시공하는데 발생하는 일조관련 문제점의 효율적인 접근방안을 연구하였다.