양계 연구 동향-고부가양계산물생산의고민

김상화,Kim, Sang-Hwa 대한양계협회 2007 월간 양계 Vol.39 No.9

삼차원적 외음부 재건을 위한 나비형피판술

김상화,서병철,오득영,서제원,안상태,이종원,Kim, Sang-Wha,Seo, Byung-Chul,Oh, Deuk-Young,Seo, Je-Won,Ahn, Sang-Tae,Rhie, Jong-Won 대한성형외과학회 2010 Archives of Plastic Surgery Vol.37 No.6

Purpose: Traditional radical surgery for vulvar cancer produces severe skin and soft tissue defects in the vulvar and vaginal area. Vulvoperineal V-Y advancement fasciocutaneous flaps have limitations in advancement and tension at the wound margin and vaginal orifice area, causing wound disruption or vaginal wall exposure. Therefore, we designed the "Butterfly flap" using a vulvoperineal V-Y advancement fasciocutaneous flap and an inguinal rotational skin flap for 3-dimensional reconstruction of vagina and vulvar area. Methods: A 27 year-old female was diagnosed with vulvar intraepithelial neoplasia. Radical vulvectomy and full-thickness-skin-graft was performed. We designed a vulvoperineal V-Y advancement fasciocutaneous flap as the greater wing and inguinal rotational skin as the lesser wing. After flap elevation, the inguinal flap was rotated $180^{\circ}$ to reconstruct the labia major and vaginal orifice. The perineum was reconstructed using V-Y advancement flaps. Results: The flap survived completely, without any complications. After 6 months, the patient was able to perform normal sexual activities and after 18 months, the patient was able to give birth to normal child by caesarean section. Conclusion: The traditional vulvoperineal V-Y advancement fasciocutaneous flap is thin, reliable, easily elevated and matches local skin quality. However, the vaginal wall becomes exposed due to limited advancement and tension of the flap. The "Butterfly flap" using a vulvoperineal V-Y advancement fasciocutaneous flap and an inguinal rotational skin flap is useful for the release of vaginal orifice contracture, reconstruction of the labia major, and 3-dimensional reconstruction of vagina and vulvar area.

간암 환자에서 간절제술 시행 후 초기 회복기간 중 이용할 수 있는 적합한 영양상태 평가 지표

김상화(Sang Hwa Kim),임진홍(Jin Hong Lim),김성훈(Sung Hoon Kim),이수지(Su Ji Lee),이호선(Ho Sun Lee),이재길(Jae Gill Lee),김충배(Choong Bae Kim),김경식(KyungSik Kim) 대한종양외과학회 2012 Korean Journal of Clinical Oncology Vol.8 No.2

목적 : 간절제술 후에는 간의 합성능력이 저하되고, 복수나 부종이 발생하게 된다. 본 연구에서는 이러한 상황에서 영양상태를 평가할 수 있는 적절한 지표를 검증하고자 하였다. 대상 및 방법 : 간세포암을 진단받고, 간절제술을 시행받은 65명의 환자를 대상으로 후향적으로 의무 기록을 분석하였다. 간절제 전 및 간절제 후 7일째 체중과 신체 체질량 지수, 혈액검사를 통해 영양 평가 지표를 측정하였다. 결과 : 65명의 환자중 남자는 52명, 여자는 13명으로 남녀 비는 4:1이었으며, 평균 연령은 56.2세였다. 수술 전 신체 체질량 지수는 저체중인 18.5 kg/m2 미만이 2명 (3.1%), 18.5-23kg/m2의 정상 범위가 22명(33.8%), 23-27.5 kg/m2의 과체중 상태가 19명(29.2%), 그리고 신체 체질량 지수 27.5 kg/m2 이상의 비만 상태가 22명(33.8%)였다. 수술 전 후의 영양 평가 항목의 변화를 살펴보면, 수술 후 림프구 수, 총 단백질량, 알부민, 혈액 요소 질소(BUN), 콜레스테롤, 프리알부민 수치가 유의하게 감소하였으며, 반면에 백혈구 세포수(5642±1831 vs. 7149±3069)와 CRP(2.98±4.78 vs. 25.69±22.23)는 눈에 띄게 증가하는 소견을 보였다(p=0.00, p=0.00). 수술 전과 후의 신체 체질량 지수와 체중은 통계학적으로 의미있는 변화는 보이지 않았다(p=1.91, p=8.23). 결론 : 간절제술 시행 후 영양 상태를 정확하게 평가하기 위해서, 염증 반응과 외부의 개입에 의한 영향 등을 고려하여, 쉽게 적용 할 수 있는 단일 영양 상태 평가 지표로는 프리알부민이 가장 적합할 것으로 사료된다. After hepatic resection, a synthetic liver function is often deteriorated, and ascites have been occasionally developed. Because of these limitations, this study is designed to validate the optimal nutritional index. We retrospectively reviewed medical records of sixty-five patients who underwent hepatectomy for hepatocellular carcinoma. Body weight, Body Mass Index (BMI) and laboratory parameters were compared at preoperative day and postoperative day 7. Patients consist of fifty-two males and thirteen females and average age is 56.2±9.9 years old. Forty-four patients had resected more than three segments, and twelve had resected 2 segments and nine had resected only one segment or received a wedge resection. According to preoperative BMI, there were two underweight (BMI < 18.5), twenty-two normal, nineteen overweight, and twenty-two obese (BMI>=27.5). After the surgery, lymphocyte count, total protein, albumin, BUN, Cholesterol, Prealbumin statistically significantly increased (p=0.00 & p=0.00). However, BMI and change in Body weight do not show statistically significant data (p=1.91, p=8.23). The degree of inflammation may have a significant influence in nutrition evaluation scale. Therefore, a new method of nutritional evaluation that can adjust degree of inflammation is needed to accurately evaluate the nutrition scale after hepatectomy.

일반 연제 : 비만환자에서의 PPARγ2 유전자 돌연변이

김상화 ( Kim Sang Hwa ),오승준 ( O Seung Jun ),우정택 ( U Jeong Taeg ),김성운 ( Kim Seong Un ),양인명 ( Yang In Myeong ),김진우 ( Kim Jin U ),김영설 ( Kim Yeong Seol ),최영길 ( Choe Yeong Gil ),박혜순 ( Park Hye Sun ) 대한비만학회 1998 대한비만학회 학술대회 Vol.1998 No.-

High Touch Promotions for High Tech Retailers: Evidence from a Field Experiment

Sang Hwa Kim(김상화),Jeeyeon Kim(김지연),Jeonghye Choi(최정혜),Seung Hyun Kim(김승현) 한국유통학회 2017 한국유통학회 학술대회 발표논문집 Vol.2017 No.4

관상동맥질환 및 뇌경색이 동반된 인슐린비의존형 당뇨병에 있어서 파라옥소나제 유전자다형성

김우식(Woo Shik Kim),김영설(Young Seol Kim),김상화(Sang Hwa Kim),팽정령(Jung Rhung Paeng),우정택(Jeong Tack Woo),김성운(Sung Woon Kim),최영길(Young Kil Choi),양인명(In Myung Yang) 대한내과학회 1998 대한내과학회지 Vol.55 No.5

N/A Objectives: Paraoxonase is a high-density-lipoprotein-associated enzyme capable of hydrolysing lipid peroxides. Thus it might protect lipoproteins from oxidation. It has two isoforms, which arise from a glutamine (A isoform) to arginine (B isoform) interchange at position 192. More recently, Ruiz et al. investigated the relationship between the paraoxonase genetic polymorphism and coronary heart disease in a case-control study of NIDDM in France. We investigated the correlation between the polymorphism of paraoxonase gene and cardiovascular disease in Korean diabetic patients. Methods: Of 106 patients with NIDDM, 50 had confirmed cardiovascular disease (coronary heart disease or ischemic stroke). The other 56 patients had no history of such disease and ECG abnormality. An additional control group of non-diabetic, healthy subjects (N=55) was selected. The polymorphism of paraoxonase gene was assessed by VCB-RFLP in their blood leukocytes DNA. Results: The healthy control revealed paraoxonase genotype frequencies of 18.1% AA, 36.4% AB and 45.5% BB. The NIDDM group revealed paraoxonase genotype frequencies of 11.3% AA, 39.6% AB, 49.1% BB. The genotype frequencies did not differ between healthy control with diabetic group. The genotype frequencies did not differ between diabetic group with coronary heart disease and diabetic control group(AA; 8.4% vs 12.5%, AR; 45.8% vs 37.5%, BB; 45.8% vs 50.0%). There was also no difference in genotype frequencies between diabetic group with ischemic stroke and diabetic control (AA; 11.5% vs 12.5%, AB; 38.5% vs 37.5%, BB; 50.0% vs 50.0%). In multiple logistic regression analysis with other risk factors, hypertension emerged as the most related factors for cardiovascular disease, but paraoxonase genotype was not associated with the presence of cardiovascular disease. Conclusion: In Korean diabetic patients, the polymorphism of paraoxonase gene might not be associated with the presence of coronary heart disease or ischemic stroke.

고정밀 회전체의 불평형 변동에 따른 회전정밀도 영향에 관한 연구

김상화(Sang-Hwa Kim),김병하(Byung-Ha Kim),진용규(Yong-Gyoo Jin) 한국기계가공학회 2012 한국기계가공학회지 Vol.11 No.3

The spindle unit is a core part in high precision machine tool. Rotation accuracy of spindle unit is needed for high dignity cutting and improving the performance of machine tool. However, there are many factors to effect to rotational error motion(rotation accuracy). This study studied how rotational error motion is variation when unbalance amount is variation. Rotation accuracy of initial spindle unit is decided depending on parts and assembly such as bearing. When it is rotation, vibration and noise is appeared depending on volume of unbalance amount, so it works to decrease unbalance amount. The purpose of the study tests that unbalance amount how much effects to initial rotation condition. The result of the study shows that accuracy of parts and assembly is highly necessary to reach high rotation accuracy and unbalance amount hardly effects to initial rotation accuracy. However, it shorten spindle"s life because vibration and noise is increasing by increasing unbalance amount and we can expect situation that rotation accuracy is falling by long time operation.

협력적 필터링과 콘텐츠 정보를 결합한 영화 추천 알고리즘

김상화(Sanghwa Kim),오병화(Byonghwa Oh),김문종(Moonjong Kim),양지훈(Jihoon Yang) 한국정보과학회 2012 정보과학회논문지 : 소프트웨어 및 응용 Vol.39 No.4

추천 시스템은 사용자의 관심을 고려하여 새로운 추천 아이템을 예측한다. 대부분의 추천 시스템은 협력적 필터링 또는 콘텐츠 기반의 방법을 사용한다. 두 방법은 각자의 장점을 가지고 있지만, 하나만 사용할 경우에는 상황에 따라 알맞은 추천 결과를 내지 못하기도 한다. 두 방법의 이점들을 통합한 하이브리드 추천 시스템은 각 방법들의 단점을 극복할 수 있다. 본 논문에서는, 콘텐츠 기반의 방법과 협력적 필터링을 효과적으로 통합할 수 있는 구조를 소개한다. 제안한 방법은 하나의 기법만 이용한 모델에 비해 높은 성능을 보여주었다. Recommender Systems attempt to predict new items considering interest for a user. Most recommender systems use Collaborative Filtering or Content-based methods. While both methods have their own advantages, individually they fail to provide good recommendations in many situations. Incorporating components from both methods, a hybrid recommender system can overcome these shortcomings. In this paper, we present an effective framework for combining content-based filtering and collaborative filtering. The proposed algorithm performs better than a pure content-based predictor or pure collaborative filter.

전쟁영화 속에 담긴 어린이 -2019∼2020년 BIKY(부산국제어린이청소년영화제) 상영작을 중심으로-

김상화 ( Kim Sang-hwa ) 방정환연구소 2020 방정환연구 Vol.4 No.-

영화는 전쟁과 냉전을 소재로 앞 다투어 많이 다룬다. 흥미로운 얘깃거리와 박진감 넘치는 화면을 마음 놓고 만들 수 있기 때문이다. 전쟁의 아픔, 그 속에서의 고뇌와 용기, 비인간성과 같은 것을 보여주는 영화는 이미 많다. 그 중에 어린이가 등장하는 장면도 많다. 어린이를 앞세우면 감정을 더 짙게 전할 수 있고 전쟁을 다른 시선으로 만들기가 손쉽기 때문이다. 그렇지만 어린이를 위해 전쟁을 소재로 다루거나 어린이가 중심을 이루는 전쟁영화 는 그리 많은 편이 아니다. 뿐만 아니라 국내 제작 영화는 거의 없다고 봐도 좋다. 있었다면 반공을 부추기는 애니메이션 영화이거나 눈물샘만 자극하는 신파조의 영화를 넘지 못한다. 그럼에도 ‘전쟁 영화 속의 어린이’를 다루어 보자는 것은 70년 동안 계속되고 있는 한국전쟁 속에서, 오늘에 되짚어 볼 의미가 있다고 여겼음직하다. 이 글에서 다루는 영화는 부산국제어린이청소년영화제(BIKY)에서 상영한 장편 영화 2편과 단편 2편이다. <87명의 아이들>은 2019년 ‘너와 더불어’ 섹션에 초청하였고, <나 치의 아이들>은 2020년 ‘다름 안에서’, <땋은 머리>는 ‘아시아 파노라마’, <헬멧>은 ‘경 계를 넘어서’ 섹션에 초청 상영되었다. 영화는 우리의 세상사를 폭넓게 다룬다. 돈벌이가 목적이라 해도 세상사를 다루지 않고는 거친 재미도 줄 수 없다. 그 덕분에 영화는 좋은 생각을 나누기도 하지만 나쁜 생 각을 가려 볼 수 있게도 한다. 나아가 감성을 돋궈내는 역할도 하기에 더없이 좋은 매체 이다. 그러나 비판 없이 파묻히면 매체의 노리개일 뿐이다. 앞서 살핀 전쟁 영화 속의 어린이에서 영화가 어떤 태도를 가지고 어린이를 담는가에 따라 어린이는 달라질 수 있다. 모든 것은 어른의 문제다. 어른이 성찰하고 각성하고 실천을 게을리 말아야 하는 이 유이다. Many movies deal with wars and the Cold War a lot as if they make a head-to-head. It is because the filmmakers can create as many interesting stories as they want and they can make scenes full of excitement to their heart’s content in their work. There are already plenty of movies that show the pain of war, the agony and courage in war and the inhumanity. Among those movies, there are many scenes where children appear since children can convey their emotions more deeply and war could be easily turned into different perspectives. However, there are not many war movies that depict war for the sake of the children or focus on children themselves. As well as, it is fair to say that there are few films produced domestically. Even if there have been, it would not have been more than animated films that encourage anti-Communism or movies by Neo-fascism that only stimulate tear glands. Nonetheless, it would be meaningful to look back on the Korean War which has been going on for over 70 years by even today to deal with ‘Children in War Movies’. The films covered in this article are two feature films and two short films, which were screened at the Busan International Kids and Youth Film Festival (BIKY). “87 Children” was invited to the 2019 ‘Staying Together’ section, “The Nazi Children” to the 2020 ‘Embrace the Difference’ section, “Braids” to the ‘Asian Panorama’ and “The Helmet” was invited to the ‘Beyond the Boundary’ section. Movies cover a wide range of our world history. Even if making money is the main purpose of film industry, no film can entertain the audience only with rough excitement without dealing with world affairs. Thanks to that, movies help to share good thoughts and make it possible for the audience to filter what bad thoughts are. In addition, there is nothing like a movie when it comes to playing a role to stimulate emotions. However, if being buried without criticism, a movie is nothing more than a plaything for media games. Image of the children shown in the previously mentioned ‘Children in War Movies’ can be changed depending on what attitude the films show to describe children. Everything is a matter of adults. This is why grown-ups should reflect, get awaken and put their thoughts in practice with more diligence.

표현중심 초등 수학 수업 분석 및 교사의 역할

김상화(Sang Hwa Kim),방정숙(Jeong Suk Pang) 학습자중심교과교육학회 2011 학습자중심교과교육연구 Vol.11 No.4

본 연구는 현행 수학과 교육과정에서 강조하고 있는 수학적 의사소통 능력 신장을 위한 수업 중 표현중심 수학 수업에 대해 살펴보았다. 초등 교사들은 학생 개개인의 수학적 사고나 특성을 살려 다양한 표현을 할 수 있도록 수업을 하는 것이 중요하다고 인식하지만 실제 수업에서는 잘 이루어지지 않는다. 이에 본 연구에서는 2·4·6학년에서 표현중심의 수학적 의사소통 수업을 구현하고 표현중심 성취요소 도달 정도와 학생들의 표현 산출물을 분석하였다. 분석 결과를 토대로 표현중심 수학수업을 구현할 때의 교사 역할에 대한 시사점을 논의하였다. This paper analyzed three mathematics teaching practices focused on representation as a way to fostering students mathematical communication ability which has been emphasized in recent mathematics curricular revisions. Elementary school teachers tend to recognize easily the importance of multiple representations on the basis of individual students mathematical thinking abilities or characteristics, but often report considerable difficulties in implementing such an idea in their actual classrooms. Given this, this paper first illustrates how three teachers implemented mathematics instruction focused on representation in their second, fourth, and sixth grade classrooms respectively. It then analyzes how learning expectations related to mathematical representation were attained in each classroom. Students various products were additionally analyzed in terms of the diversity of representational forms and thinking processes through mathematical representations. This paper finally discusses the role of a teacher for effective mathematics teaching focused on representation.