• Korean Journal of Radiology
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• 제21권7호
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• pp.891-899
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• 2020

Objective: To assess the diagnostic performance of a deep learning-based algorithm for automated detection of acute and chronic rib fractures on whole-body trauma CT. Materials and Methods: We retrospectively identified all whole-body trauma CT scans referred from the emergency department of our hospital from January to December 2018 (n = 511). Scans were categorized as positive (n = 159) or negative (n = 352) for rib fractures according to the clinically approved written CT reports, which served as the index test. The bone kernel series (1.5-mm slice thickness) served as an input for a detection prototype algorithm trained to detect both acute and chronic rib fractures based on a deep convolutional neural network. It had previously been trained on an independent sample from eight other institutions (n = 11455). Results: All CTs except one were successfully processed (510/511). The algorithm achieved a sensitivity of 87.4% and specificity of 91.5% on a per-examination level [per CT scan: rib fracture(s): yes/no]. There were 0.16 false-positives per examination (= 81/510). On a per-finding level, there were 587 true-positive findings (sensitivity: 65.7%) and 307 false-negatives. Furthermore, 97 true rib fractures were detected that were not mentioned in the written CT reports. A major factor associated with correct detection was displacement. Conclusion: We found good performance of a deep learning-based prototype algorithm detecting rib fractures on trauma CT on a per-examination level at a low rate of false-positives per case. A potential area for clinical application is its use as a screening tool to avoid false-negative radiology reports.

• East Asian mathematical journal
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• 제34권3호
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• pp.317-330
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• 2018

We develop a mathematical model for the obesity dynamics to investigate the long term obesity trend with the consideration of psychological and social factors due to the increasing prevalence of obesity around the world. Many mathematical models for obesity dynamics adopted the modeling idea of infectious disease and treated overweight and obese people infectious and spreading obesity to normal weight. However, this modeling idea is not proper in obesity modeling because obesity is not an infectious disease. In fact, weight gain and loss are related to social interactions among different weight groups not only in the direction from overweight/obese to normal weight but also the other way around. Thus, we consider these aspects in our model and implement personal weight gain feature, a psychological factor such as body image dissatisfaction, and social interactions such as positive support on weight loss and negative criticism on weight status from various weight groups. We show that the equilibrium point with no normal weight population will be unstable and that an equilibrium point with positive normal weight population should have all other components positive. We conduct computer simulations on Korean demography data with our model and demonstrate the long term obesity trend of Korean male as an example of the use of our model.

• Applied Microscopy
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• 제40권4호
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• pp.267-270
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• 2010

The skin is the largest organ of the integument system whose surface is closely related with many physiological and pathological conditions. Various methods are used to understand the structural and functional status of human skin. We would like to present usefulness of scanning electron microscopic (SEM) observation of skin replica and its significance of training module for a novice. The silicon replicas from several regions of the body (hand, finger, forearm, lip, and face) were casted by applying Exafine$^{(R)}$ mixture. The positive replicas were prepared by applying EPON 812 mixture on negative silicon replicas. Some of the negative silicon replicas were cut with a razor blade and surface profiles were observed. The negative and positive replicas were coated with platinum and were observed under the scanning electron microscope. We could investigate the detailed structures of the human skin surface without any physical damage to the subject. The positive replicas depicted real surface structure of the human skin vividly. The cross sectional view of the negative silicon replicas provided surface profile clearly. The scanning electron microscopic observation of the human skin replicas would be useful to study skin surface structures and to evaluate medical and esthetical applications.

• 한국아동복지학
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• 제26호
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• pp.7-30
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• 2008

의학기술의 발전으로 소아암 환아의 생존율이 1960년대 30%미만에서 최근 75%이상으로 향상되었다. 이에 따라 소아암은 더 이상 불치병이 아닌 만성질환으로 분류되고 있으나, 장기간의 투병생활로 인해 소아암 환아들은 신체적, 심리사회적 문제를 겪고 있다. 특히 외모에 관심이 많고, 또래관계가 중요한 10대 소아암 환아들에게 있어 신체적, 심리사회적 변화는 이들의 신체상과 질병적응에 영향을 미칠 것으로 예상된다. 이에 본 연구에서는 소아암 환아의 신체상(신체왜곡도) 및 질병적응 수준을 알아보고, 인구사회학적 특성, 질병관련 특성 및 신체상이 소아암 환아의 질병적응에 미치는 영향에 대해 알아보았다. 본 연구는 2007년 10월 22일부터 11월 16일까지 자기기입식 설문조사로 이루어졌으며, 조사대상자는 암진단 후 3년 이내의 10세에서 18세 환아 82명이었다. 수집된 자료는 기술통계, t-검정, 상관관계, 위계적 다중회귀방법으로 분석하였다. 분석결과, 연령, 학교생활여부, 신체상이 소아암 환아의 질병적응에 영향을 미치는 요인으로 나타났다. 즉, 연령이 높을수록, 학교생활을 하고 있는 환아가 그렇지 않은 환아보다, 신체왜곡도가 낮을수록 질병적응에 긍정적 영향을 미치는 것으로 나타났다. 소아암 환아의 질병적응을 돕기 위해서는 소아암 환아가 학교생활을 지속할 수 있도록 돕는 정책적 제도 구축, 긍정적 신체상 형성을 위한 프로그램 개발, 소아암 환아의 연령을 고려한 심리사회적 접근 등이 필요하며, 이를 위해 사회복지사의 적극적인 개입이 이루어져야 할 것이다.

• 복식문화연구
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• 제13권4호
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• pp.550-563
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• 2005

These days, photoshop and illustrator program can make a fashion illustration express easily and speedily, And they can also express a feeling and sensitivity of fashion illustrator by a tool and effect more than a manual work's media. The purpose of this study was to analyze a visual expression and characteristics in fashion illustration using 2D graphics. The method of this study was to analyze the fashion illustration books using 2D graphics. The visual expressions in fashion illustration using 2D graphics were as follows: Fashion illustration was based on a sketch or photography, and used a composition, drawing, mapping, painting, and manual work's re-touching. Characteristics of visual expression were as follows: First, a image composition was showed discontinuity and heterogeneity of image, new context and composition, and allowance of reality. Second, image transform was showed image overlap, body transformation by image recomposition, and deformed transformation by vector drawing. Third, hyper-real was showed precise touching, mechanical and neutral image, omission of background and focus of an object's characteristic and information. Fourth, following a realistic expression was showed simplified color, shading, dominant view point of fashion illustrator by omission, and daily lift style. Fifth, following a pictorial expression was showed non-fixed and irregular line, natural painting, and drawing and painting by conventional pictorial media. In conclusion, a photoshop and illustrator in 2D graphics will serve as a new media far fashion illustration with a manual work. And they will not only intensify a capacity as a commercial role of fashion illustration but also present a positive motive for students learning a fashion illustration.

• 한국산학기술학회논문지
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• 제18권12호
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• pp.173-181
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• 2017

본 연구의 목적은 대학생의 외모 관련 사회문화적 태도와 사회적 압박감, 스트레스가 신체상 불일치에 미치는 영향을 파악하기 위함이다. 연구 대상자로 C시와 A시 4년제 대학에 다니는 대학생 363명을 표집하였다. 구조화된 자가보고 설문지를 통해 2016년 10월 27일부터 12월 9일까지 자료를 수집하였다. 자료분석을 위해 SPSS 20.0 통계 프로그램의 기술 통계 및 상관 분석, 다중 회귀분석을 적용하였다. 연구결과에서 신체상 불일치 정도는 여학생의 외모 관련 사회문화적 태도(r=.406, p=.006), 친구에 의한 압박감(r=.197, p<.001), 부모에 의한 압박감(r=.176, p=.002), 스트레스(r=.218, p<.001)와 양의 상관관계가 있는 것으로 나타났다. 신체상 불일치는 친구에 의한 압박감(${\beta}=.159$, p=.007), 스트레스(${\beta}=.186$, p=.002), BMI(${\beta}=.186$, p=.002)가 증가할수록 높게 나타났으며, 이 변수들은 대상자의 신체상 불일치에 대해 10.9%의 설명력을 보였다. 따라서 신체상 불일치를 줄이기 위해서는 대학생들이 건강 유지 목적으로 체중과 스트레스 관리를 할 수 있게 하고, 타인의 시선이나 평가로 인해 상처받지 않고, 긍정적인 자기 인식을 가질 수 있도록 하는 보건교육 및 건강증진 프로그램 개발이 요구된다.

• 대한지역사회영양학회지
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• 제10권5호
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• pp.623-632
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• 2005

This study was intended to collect the baseline information on dietary behavior of adults to develop nutrition education program in the context of healthy weights at community level. Nutrient intakes of 128 housewives were assessed by 24 hour recall method. Also food habits, nutrition knowledge and attitude were investigated by self-administered questionnaires. Subjects were divided to under-weight, normal-weight, over-weight groups by body mass index (BMI). Most under-weight groups evaluated as their current body images were normal. $41\%$ of normal-weight groups judged as their current body images were obese. Energy and fat intakes of over-weight group were significantly higher than that of under-weight and normal weight groups (p<0.05). However, carbohydrate and protein intakes showed no significant differences among the three groups. It appeared that active attitude toward change in nutrition attitude of normal weight group was significantly higher than that of under-weight group (p<0.05). There were no significant differences of food habit score, nutrition knowledge, and obesity habit scores among the three groups. The frequency of eating-out showed significant difference among three groups (p<0.05). Food habit scores were positively related to health-concerned attitude (r=0.174), convenience-concerned attitude (r=0.229) and food enjoyed attitude (0.213) and negatively related to obesity habit score (r=-0.206). Also, positive correlation of body fat mass with frequency of eatingout (r=0.213), instant food (r=0.227) and amount of meal (r=0.187) existed (p<0.05). We concluded that nutrition education programs for housewives should include specific strategies to modify unsound food behaviors and inappropriate perception of body image for a healthy weight.

• 복식
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• 제61권8호
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• pp.100-113
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• 2011

The earlier notion of feminism regarding gender equality was changed into that of Postfeminism because of gender differences. The idea of Postfeminism has been present since the 1980s but has been influenced by modern culture theories such as Postmodernism, Poststructuralism, Theory of Power and Discourse and Psychoanalysis. Various features of Postfeminism are found in the medieval warrior images of contemporary fashion. Warrior costumes were men's exclusive property in the medieval ages, but as it is introduced as women's wear in the 21st century, it shows us new fashion images which are constructed by gender deconstruction, differences and pastiche. In this regard, the purpose of this study is to examine a key characteristic of Postfeminism fashion. An article described the historical costumes of medieval warriors and refocused on the development processes of feminism and then conducted an analysis on formative characteristics and Postfeminism tendencies in contemporary women's wear from 2000 to 2011. The results were that materials such as metallic and flexible materials, monotonic and red colors and detailed patterns of armor were used to display forms of exaggeration and restraint. These elements fully and correctly expressed the image of a medieval warrior woman in contemporary fashion. Postfeminism fashion is constructed with feminine power, gendered identity, sensual elegance and a postmodern body. Postfeminism is the contemporary cultural icon and is continuously influencing modern fashion design in the 21st century in a positive and powerful way.

• 한국운동역학회지
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• 제23권1호
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• pp.85-90
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• 2013

Efficient gait is compensate for a lack of exercise, but the wrong walking can cause disease that joints, muscles, brain and body structure(Scott & Winter, 1990). Also many researchers has been studied gait of positive mechanism using analytical methods kinetic, kinematic. This study is to identify nature of knee adduction moment, depending on different foot progression angle and the movement of rotation of pelvis and body. Health study subject conducted intended walking with three different angles. The subjects of this study classified three types of walking; walk erect, pigeon-toed walk and an out-toed gait. Ten university students of K without previous operation and disease record selected for this study. For accuracy of this study, three types of walking carried out five times with 3D image analysis and using analysis of ground reaction force to analyze nature of knee adduction moment and the movement of rotation of pelvis and body. Firstly, the HC(heel contact) section value of intended walk erect, pigeon-toed walk and an out-toed gait was not shown statistically significant difference but TO(toe off) section value was shown that the pigeon-toed walk statistically significant. The value of pigeon-toed walk was smallest knee adduction moment(p< 0.005). Secondly, X axis was the change of rotation movement body and pelvis when walk erect, pigeon-toed walk and an out-toed gait. Shown statistically Y axis was not shown statistically significant but Z axis statistically significant(p<0.05). These result show the significant differences on TO section when walking moment reaches HC, it decides the walking types and rotates the foot.

• 기본간호학회지
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• 제9권3호
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• pp.412-423
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• 2002

Currently, health promotion is an important issue in health policy for world citizens. Aerobic workout may be one way to attain health promotion. In recent years, there ave been many studies to evaluate the effects of exercise on obese people and various patients. However, there are few studies in which both physiological and psycho-perceptual aspects of health romotion for healthy people have been evaluated. Purpose: This study focused on evaluating the holistic effect of an 8 week aerobic workout for health promotion in young women. Method: This quasi-experimental study was designed as a nonequivalent control group pre-post test study. Forty healthy college women, aged between 20 and 25 volunteered for the study. Twenty women took 30 minutes of exercise a day for five days a week over 8 weeks with Jane Fonda's aerobic workout program. Twenty women participated as controls. The aerobic workout program consisted of warm-up for arms, waist, abdominal, leg, hips, buttocks and cool down exercises. Result: After the eight weeks of aerobic exercise, changes in health related fitness components through the In Body Test, skin fold, circumference of body, Body image, Self concept, Mood and Self-efficacy were compared. The results areas follows ; 1. Following the 8 week aerobic workout, health related body components, and fitness scores, increased significantly (P < 0.05) and skin fold for four sites (right upper arm, scapular, abdomen, supra ilium), and circumference of mid thigh decreased significantly (P<0.05, p<0.005, P<0.001) compared to the control group. 2. Following the 8 week aerobic workout, there was a significant increase in Self-concept and Mood (P<0.005 and 0.001) compared to the control group. Conclusion: According to these results, it is concluded that 8 weeks of aerobic workout have a positive effect on young women's holistic health promotion.