• Title/Summary/Keyword: Skin Type

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Anti-aging Effects of Cedrol and Collagen-derived Peptide (세드롤과 콜라겐 유래 펩타이드의 피부노화 개선효과)

  • Ryu, Jong Seong;Cho, Hwan Il;Won, Ji Hee;Jeon, Mi Na;Kwon, Oh Sun;Won, Bo Mi;Lim, Jun Man;Lee, Sang Hwa
    • Journal of the Society of Cosmetic Scientists of Korea
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    • v.41 no.3
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    • pp.229-235
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    • 2015
  • Skin aging is the phenomena finally expressed on the skin surface and related to the changes in the microstructure of the skin texture. Which is resulted in wrinkle formation and uneven tone of skin and so on. In this study, the synergy effect of Cedrol and a collagen-derived peptide in type III collagen synthesis was evaluated by in vitro test. The physiological skin state of 22 female volunteers was measured after using the cosmetics for 4 weeks. Results showed that Cedrol and a collagen-derived peptide had the excellent synergy effect in type III collagen synthesis. The cosmetics improved skin microrelief, star configurations, skin gloss, skin tone, hydration and elasticity except skin lightening. In conclusion, this study proved that Cedrol and collagen-derived peptide had the synergy effect of type III collagen synthesis in the cell level and cosmetics with those was improved skin aging in human volunteer test.

Immediate regraft of the remnant skin on the donor site in split-thickness skin grafting

  • Park, Young Ji;Ryu, Woo Sang;Kim, Jun Oh;Kwon, Gyu Hyeon;Kim, Jun Sik;Kim, Nam Gyun;Lee, Kyung Suk
    • Archives of Craniofacial Surgery
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    • v.20 no.2
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    • pp.94-100
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    • 2019
  • Background: Skin defects of head and neck need reconstruction using various local flaps. In some cases, surgeons should consider skin graft for large skin defect. It is important to heal skin graft and donor sites. The authors investigated wound healing mechanisms at the donor sites with split-thick-ness skin graft (STSG). In this study, the authors compared two types of immediate regraft including sheets and islands for the donor site after facial skin graft using remnant skin. Methods: The author reviewed 10 patients who underwent STSG, from March 2015 to May 2017, for skin defects in the craniofacial area. The donor site was immediately covered with the two types using remnant skin after harvesting skin onto the recipient site. Depending on the size of the remnant skin, we conducted regraft with the single sheet (n= 5) and island types (n= 5). Results: On postoperative day 1 and 3 months, the scar formation was evaluated using the Patient and Observer Scar Assessment Scale (POSAS) and Vancouver Scar Scale (VSS). Total POSAS and VSS scores for the island type were lower than in single sheet group after 3 months postoperatively. There was significant difference in specific categories of POSAS and VSS. Conclusion: This study showed a reduction in scar formation following immediate regrafting of the remnant skin at the donor site after STSG surgery. Particularly, the island type is useful for clinical application to facilitate healing of donor sites with STSG.

An Analysis on the Relationships between Professions in the Beauty Industry and Blood Type

  • Jo, Byeongsun;Kim, Sungnam
    • Journal of Fashion Business
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    • v.17 no.6
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    • pp.1-17
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    • 2013
  • This study was carried out after the author experienced different personalities according to blood type over many years and thus have attempted to find out the relationships between blood type and each occupation in the industry. This study aims to analyze employees in the beauty industry (hair design, skin care, nail art and makeup) in Seoul with regard to their blood types. The significance of this study is to provide baseline data for entrants and managers in the beauty industry in order to help them choose the right occupation and reduce turnover rates through analyzing employee personalities by blood type. Research topics include the following: first, to understand the characteristics of employees in the beauty industry; and second, to find out the relationships between blood types and types of professions. After conducting an inquiry into the relationships between blood type and profession in the industry, a significant portion of skin care (49.3%) and nail art (43.8%) professionals was blood type A; nail artists (43.8%), type AB; hair designers (54.7%), type B; and makeup artists (50.0%) and hair designers (29.2%), type O. In conclusion, these results reflect the personalities of people within the beauty industry by blood type. Skin care and nail art shops are quiet environments, whereas hair salons are relatively louder with contemporary music along with the sounds of various equipment.

Effects of Avocado Yoghurt, Three Beans Cookie, and Tiger Nut Galsu Drink on Fibroblasts (Hs68) and Keratinocytes (HaCaT)

  • Park, Seung-Yong;Jung, Eun-Kyung;Joo, Nami;Shin, Hyun-Soo;Shin, Ji-Sun;Myoung, Da-Bin;Lee, Kyung-Tae
    • Journal of Dairy Science and Biotechnology
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    • v.37 no.2
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    • pp.136-153
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    • 2019
  • The present study aimed to investigate the effects of skin care foods on the synthesis of pro-collagen type I C peptide and suppression of matrix metalloproteinase (MMP)-1 secretion through an in vitro study using fibroblasts (Hs68 cells) and keratinocytes (HaCaT cells). Among the three skin care foods developed in this study, three beans cookie and avocado yoghurt influenced the production of pro-collagen type I C peptide and suppressed MMP-1 secretion; however, tiger nut Galsu drink did not exhibit these effects. All skin care foods, including three beans cookie and plain yoghurt ($50{\mu}g/mL$, p<0.001) influenced the suppression of MMP-1 in addition to other commercially available breast milk production support foods examined, such as Heath Heather ($50{\mu}g/mL$, p<0.001), Happy Mama ($50{\mu}g/mL$, p<0.01), BioLys ($50{\mu}g/mL$, p<0.001), Enfamama ($25{\mu}g/mL$, p<0.0001), and Pregnagen ($25{\mu}g/mL$, p<0.001). Avocado fruit yoghurt ($25{\mu}g/mL$, p<0.05), avocado fruit jam yoghurt ($50{\mu}g/mL$, p<0.01), Enfamama ($100{\mu}g/mL$, p<0.05), and Pregnagen ($100{\mu}g/mL$, p<0.05) influenced the production of pro-collagen type I C peptide and suppressed MMP-1 secretion. This result indicates that only avocado jam yoghurt significantly influenced both the prevention of skin keratinization and acceleration of recovery of skin fibrous structure. Therefore, avocado is a favorable ingredient for nutrition-balanced dietary foods or an essential ingredient in products for revitalization of human skin.

A study on the compressive capacity of structural skin timber for the furniture manufacturing and heavy timber construction (가구 및 중목구조용 실대재 스킨팀버의 압축 성능에 관한 연구)

  • Kim, Gwang-Chul
    • Journal of the Korea Furniture Society
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    • v.21 no.4
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    • pp.273-283
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    • 2010
  • Structural larger timber have some weak points as like much longer drying time at lower MC(15%), a considerable check developing and the difficulty for the chemicals injection, so it is necessary to develop lighter structural size member for using the new Hanok, heavy timber construction, living necessaries, furniture and industrial goods. The developed skin timber can be a good raw material for those uses. Skin timber is a hollowed timber which be bored out of its considerable cross-sectional area. The intention of this study was the evaluation of compressive capacity of skin timber. Specially, skin timbers which have more than 200mm in sizes were used to analyze the compressive capacity. From the results of this study, the following conclusions have been made: 1. Though considerable inner parts were bored out, both pine skin timber and larch skin timber showed a good compressive capacity to that of non-bored solid timber. 2. According to ASTM, pine skin timber showed various failure types, but Splitting type, Brooming and end rolling type were main failure types for the larch skin timber. 3. Pine skin timber didn't show the significance between cylindrical shape and rectangular shape, but larch skin timber showed the significance between two shapes. Therefore, for the larch skin timber, cylindrical shape and rectangular shape should be used as a column uses and beam uses respectively. 4. Pine skin timber and larch skin timber didn't show the significance on the compressive capacity. There is not much difference of compressive capacity between them, so it can be possible to select on the user convenience.

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Treatment of Skin Diseases in Hyungsang Medicine (피부병의 형상의학적 치료)

  • Suk Min He;Hwang Won Duek;Jung Haeng Gyu;Lee Yong Tae
    • Journal of Physiology & Pathology in Korean Medicine
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    • v.18 no.3
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    • pp.646-669
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    • 2004
  • By treating skin diseases with Hyungsang medicine and reviewing the clinical cases of them through classifying skin diseases into general care and into Hyungsang medical care, the writer came to the conclusion as followings. The skin is a house of Kyungnak, and it' s a place which Ki comes in and out, which human body controls conditions of his physiological function and which doctors can make a diagnosis from seeing it. The skin is subject to lung and large intestine in the point of organ, but in the point of movement, to spleen and stomach. Skin diseases come from unbalance of Ki and Hyul, mostly from fever in blood and also from Dam, Wind, Dampness and Dryness because of including fire. Generally skin diseases are treated according to classifying into distinctive symptoms, region, cause or time being occurred, and concomitant symptoms. After being divided into man and woman, age and youth, fatness and leanness, Jung Ki Shin Hyul type, visceral figures, Yukkyung shapes on Hyungsang medicine method, the remedy of skin diseases which is combined common meditation with Hyungsang medical method is efficacious. In distinguishing into man and woman, age and youth, man gets sick mainly by drinking liquor and exhausting Jung, woman is taken ill generally by indigestion and Damwha, especially by drinking liquor. Young child gets ill mostly from inherent weakness, but in many cases he is occurred by disturbed digestion, so he must be taken care of ingesting food. The aged becomes ill from weakening, so he must be treated according to reasons of diseases. To fatness and leanness, skin diseases are showed symptoms by weakened Yang, insufficient Yin or excess fever on the theory of upper and lower parts, by unbalance of Ki and Hyul on the theory of left and right, by Dryness and Dampness on the theory of front and rear and by insufficiency of vitality and combined fever on the theory of inside and outside. Therefore doctors must cure the symptoms according to the theory of upper and lower, left and right, front and rear and inside and outside. In type of Jung Ki Shin Hyul, the balances between Jung-Hyul and Shin-Ki are important points. Concretely Jung type comes to easily shortage of Jung or gathering abnormally Dampness and Dam, Ki type is easy to make a mass with Ki or to be deficient of Ki, Shin type comes to press seven emotions togather or to be insufficient of Yin and fever inside, and Hyul type is inclined to be deficient of Hyul and to become feverish or to be deficient of Ki. Therefore on the ground of the above reasons skin diseases come into existence. Inclusively in Jung-Hyul type , Ki must be moved on the base of full Jung-Hyul, so Wukmijiwhangtang or Samultang is prescribed basically. In Shin-Ki type , Jung-Hyul is saved on the base of moving Ki, so Hyangsosan or Yijintang is the proper prescription. Considering the visceral figures, doctors judge for diagnosis and remedy by putting together the elements, that is, great and small sizes of a set of features (eye, ear, mouth, nose), color and temper. The yukkyung types are classified according to many or few of Ki-Hyul, and then skin diseases appear by being inclined toward one side between Ki and hyul, or among the six atmospheric elements(wind, cold, heat, dampness, dryness, and fire). Especially because Yangmyung type is full of much Ki and Hyul, and also has much fever in stomach, he gets skin symptoms frequently. So his prescription is based on taking off fever in stomach, and also he must be careful about regimen certainly.

A Study on sebum, moisture of Skin Change by Skin Type after Deep cleansing (딥 클렌징 후 피부타입에 따른 피부 유, 수분 변화 연구)

  • Song, Ji-Hye;Lee, Yeon-Hee
    • Journal of the Korea Academia-Industrial cooperation Society
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    • v.10 no.5
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    • pp.1109-1114
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    • 2009
  • The order to see how the deep cleansing change sebum and moisture condition by skin type, 20 persons with dry skin and oily skin were divided into two groups of scrub group and enzyme group and given the deep cleansing care, totaling 8 time. After 8 times of the deep cleansing care, the scrub group showed a valid change with oily skin while the enzyme group showed a valid change with dry skin. However, both groups did not have change a moisture with any skin types. The outcome from the questionnaire that had been done to find subjective feeling indicated that oil change resulted in a valid feeling whereas change of moisture and sensitivity were barely felt.

Stretchable Carbon Nanotube Composite Clays with Electrical Enhancers for Thermoelectric Energy Harvesting E-Skin Patches

  • Tae Uk Nam;Ngoc Thanh Phuong Vo;Jun Su Kim;Min Woo Jeong;Kyu Ho Jung;Alifone Firadaus Nurwicaksono Adi;Jin Young Oh
    • Elastomers and Composites
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    • v.58 no.1
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    • pp.11-16
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    • 2023
  • Electronic skin (e-skin), devices that are mounted on or attached to human skin, have advanced in recent times. Yet, the development of a power supply for e-skin remains a challenge. A stretchable thermoelectric generator is a promising power supply for the e-skin patches. It is a safe and semi-permanent energy harvesting device that uses body heat for generating power. Carbon nanotube (CNT) clays are used in energy-harvesting e-skin patches. In this study, we report improved thermoelectric performance of CNT clays by using chemical doping and physical blending of thermoelectric enhancers. The n-type and p-type thermoelectric enhancers increase electrical conductivity, leading to increased power factors of the thermoelectric CNT clays. The blend of CNT clays and enhancers is intrinsically stretchable up to 50% while maintaining its thermoelectric property.

A Study on the Discriminant Variables of Face Skin Colors for the Korean Females (한국 여성의 얼굴 피부색 판별을 위한 색채 변수에 관한 연구)

  • Kim, Ku-Ja;Chung, Hae-Won
    • Journal of the Korean Society of Clothing and Textiles
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    • v.29 no.7 s.144
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    • pp.978-986
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    • 2005
  • The color of apparel products have a close relationship with the face skin colors of consumers. In order to extract the favorable colors which flatter to consumer's face skin colors, this study was carried our to classify the face skin colors of Korean females. The criteria that select new subjects who have the classified face skin colors have to be decided. With color spectrometer, JX-777, face skin colors of subjects were measured and classified into three clusters that had similar hue, value and chroma with Munsell Color System. Sample size was 324 Korean females and other new 10 college girls. Data were analyzed by K-means cluster analysis, ANOVA, Duncan multiple range test, Stepwise discriminant analysis using SPSS Win. 12. Findings were as follows: 1. 324 subjects who have YR colors were clustered into 3 face skin color groups. 2. Discriminant variables of face skin colors were 5 variables : b value of cheek, V value of forehead, L value of cheek, C value of forehead and H value of cheek by the standardized canonical discriminant function coefficient 1. 3. Hit ratio of type 1 was $96.8\%$, of type 2 was $94.9\%$, of type 3 was $100.0\%$ and mean of hit ratio was $96.9\%$ by canonical discriminant function of 5 variables. 4. With the unstandardized canonical discriminant function coefficient and constant, canonical discriminant function equation 1 and 2 were calculated. And cutting score and range of score of the classified types were computed. The criteria that select the new subjects were decided.

The Effect of Visual Display Terminal Work on the Human Body (영상화면 단말기(VDT)작업이 인체에 미치는 영향)

  • 이호찬;박용억;강회향;민경진;김종규
    • Journal of Environmental Health Sciences
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    • v.21 no.4
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    • pp.75-86
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    • 1995
  • This study was performed to investigate the negative side effects of video display terminal (VDT) work on the human body and to provide data for preventing VDT syndrome. A questionnaire survey was made to 339 VDT workers at 22 offices in Taegu, Kyungpook and Kyungnam areas from July 1 to August 31, 1994, and 280 of them were finally used for statistical analysis. The VDT syndrome in the present study inclhded five factors, namely as eye-related symptom, psychological symptom, general body symptom, musculoskeletal symptom, and skin-related symptom, and the estimates of Crombach coefficients of the five factors were 0.954, 0.952, 0.953, 0.957, and 0.955, respectively, showing very high reliability. In view of socio-economical characteristics, the symptoms of female were higher than those of male in the order of musculoskeletal symptom, eye-related symptom, skin-related symptom and psychological symptom. The age group of 30 years or less was higher than the older groups in the order of musculoskeletal symptom, eye-related symptom, psychological symptom and skinrelated symptom. The group of lower education level showed higher skin-related symptom. The psychological symptom and skin-related symptom increased as the amount of smoking increased. Higher eye-related symptom was observed in the group without glasses. In the job-related variables, the group of working on programming and data input showed higher eye-related symptom and psychological symptom. The group of working on programming and graphic design showed higher musculoskeletal symptom and skin-related symptom. The skin-related symptom increased as the total time of VDT operation per day increased. The group of working 2-4 hours followed by 15 minutes rest was higher in musculoskeletal symptom and psychological symptom. Higher musculoskeletal symptom was observed from the group working on Friday and Sunday. The group of 1 year or less working showed higher in skin-related symptom. In relation with the VDT type, all symptoms except skin-related symptom were higher in the group using monochrome monitor. As showed above, the questionnaire could be a tool for evaluating VDT syndrome and prevention of the syndrome would be possible by a comprehensive consideration of factors including socio-economic characteristics, job-related variables and VDT type.

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