• Title/Summary/Keyword: Chronological changes

Search Result 114, Processing Time 0.026 seconds

Study on the Relationship between Epidermal Barrier Function and Cornified Envelope (CE)-Bound Lipids

  • Hattori, Takao;Oyobikawa, Midori;Suzuki, Masami
    • Proceedings of the SCSK Conference
    • /
    • 2003.09a
    • /
    • pp.570-577
    • /
    • 2003
  • The importance of cornified envelope (CE)-bound lipids to epidermal barrier function is increasingly being recognized. In the present study, we intentionally damaged the cornified layer of hairless mice by ultraviolet irradiation and sodium dodecyl sulfate (SDS) treatment, and assessed the changes in epidermal barrier function by measuring Trans Epidermal Water Loss (TEWL). We also measured changes in the amount of CE-bound lipids using thin layer chromatography (TLC). The results showed that both treatments increased TEWL and decreased CE-bound lipids (omega-hydroxy cerami de and omega-hydroxy acid). In addition, investigation of the chronological changes in TEWL revealed an inverse relationship between TEWL and CE-bound lipids, and a correlation between CE-bound lipids and epidermal barrier function. We then measured the amount of CE-bound lipids in the cheek and the medial side of the upper arm in humans. The results showed that because the cheek receives external stimulation on a daily basis, the amount of CE-bound lipids was significantly lower, while the level of TEWL was higher. These observations, together with those from the animal study, indicate that CE-bound lipids are related to epidermal barrier function.

  • PDF

Influence of Western Women's Hair-style on the Korean Women's Hair-style (서양여성의 헤어스타일이 한국여성의 헤어스타일에 미친 영향 -1940년대 중반부터 1980년대까지-)

  • Kim, Jin-Sook
    • Journal of the Korean Society of Fashion and Beauty
    • /
    • v.3 no.1 s.4
    • /
    • pp.50-60
    • /
    • 2005
  • This research analyzes whether affected some South Korea woman's hair style comparing change of West woman's head form after the mid-1940s. This research purpose is analyze effect that examine South Korea woman and West woman's hair style and compare change special quality and get in our country hair style until 1980 after the mid-1940s. This dissertation is literature research that analyze change process of West woman's hair style and South Korea woman's hair style. Investigation method utilized dress and its ornaments connection books and treatise, beauty art connection books and treatise such as the South Korea and western dress and its ornaments. The following is the chronological analysis of the influence the western hairstyle has had on the Korean women. The hairstyles in Korea have been profoundly influenced by the western culture, especially the western makeup styles and hairstyles. Therefore, exploration of the western hair and makeup-styling conveys a great significance in conducting researches on the Korean hairstyles. Conclusion of this research is hair style of our country received much effects from make-up culture specially Occidentalism, hair style culture by each age, European beauty art culture research can assume that scientific analysis of west woman's clothes and make-up is important in our country hair style research. In the future, it is believed that the cycle of changes in hair-styling will get remarkable shortened with the advance in the computer technology, which enables the world to have a much faster access to other cultures over the Internet.

  • PDF

Study on Chronological Comparison of Cheollik Size (철릭의 연대별 치수비교 연구)

  • Ha, Ji-Hyun;Kim, Hee-Eun
    • Fashion & Textile Research Journal
    • /
    • v.19 no.5
    • /
    • pp.589-594
    • /
    • 2017
  • The purpose of this study is to provide basic data for design and pattern development research in the modernization of Cheollik by comparing and analyzing the interrelationships between the components of the Cheollik. The 237 pieces of excavated costume Cheollik in the museums were surveyed. The size of the Cheollik components were examined by 100 year unit from 1400s to after 1800s. In the 1400s, the length of Cheollik was the shortest and the length of top was longer than the bottom. In the 1700s, the total length was the longest and the bottom was longer than the top. As the age increases, the total length and the bottom become longer and the length of the top becomes shorter. Poom and Gutseop were the largest in the 1400s and the smallest the after 1800s. As the age of the Poom and Gutseop decreased, the width of the Anseop increased. Gutseop was always present but Anseop was not always present in Cheollik components. As the ages passed, Jindong and Soogu became narrower and Baerae became wider. These change of Cheollik's sleeves form were affected by GongBok(so-called official wear) sleeves. By age, Cheollik did not show any big change in the basic shape, but the partial dimensions of the components showed changes. If the design and pattern research for modernization is done based on systematic establishment of pattern dimension of Cheollik, Cheollik dress combines practicality while preserving beauty and tradition at the same time.

Evaluation of Fruit Quality and the Anatomical Characteristics of Gaeryangmeoru (Vitis sp.) Grapes Depending on the Growth Stage (개량머루(Vitis sp.)의 생육기에 따른 과실 품질 및 형태학적 관찰)

  • Kwon, YongHee
    • Journal of Bio-Environment Control
    • /
    • v.23 no.2
    • /
    • pp.65-70
    • /
    • 2014
  • The aim of this study was to identify the chronological growth characteristics of Gaeryangmeoru grapes, by observation of the developmental process of the axillary bud, fruit quality, and anatomical structure of the pericarp. No necrosis of axillary buds was observed, irrespective of node position of the shoot, from shoot occurrence to leaf fall. Berry weight, cluster weight, soluble solid content and titratable acidity were analyzed to be 1.2 g, 128.8 g, $16.9^{\circ}Brix$, and 1.57%, respectively, at maturity. The sugar was composed of fructose and glucose, with a ratio of 1:1 (fructose: glucose) at maturity. Malic acid was predominant among the organic acids, and conformed to the changes of chronological titratable acidity. Sugar and organic acid content changed dramatically starting a week before veraison. The degraded ovules were observed before and after fertilization, and the pericarp was composed of one epidermis, and seven to ten hypodermis layers at maturity.

Statistical Estimated Model of Chronological Change in Physical Growth and Development in Korean Youth(17 Years Old) - From 1983 To 1993 - (한국 청소년(만 17세) 체격의 시대적 변천에 대한 통계적 모형 추정 -1983년부터 1993년까지-)

  • 성웅현;윤석옥;윤태영;최중명;박순영
    • Korean Journal of Health Education and Promotion
    • /
    • v.12 no.2
    • /
    • pp.36-47
    • /
    • 1995
  • This research was obtained from analyzing how the physiques of the 3rd grade students of high school for males and females and developed for the last eleven years(from 1983 to 1993). By the physiques and nutritional index of physical growth and development, Relative Body Weight of 36.62 exceeded the standard, on the other hand females showed lower records than the standard. Relative Chest Girth Index belonged to the normal type of males and females in all, in the comparison of the records between 1983 and 1993, males increased in average 0.29 and females in average 0.55. Relative Chest Girth Index of females was greater than that of females. By the results of Relative Sitting Height Index, growth of the lower body for males and females was greater than that of males. In case of Vervaeck Index, males increased in average 2.04 but females increased in average 1, 20 relatively less than males. These phenomena provided for the evidence of the deficient nutrition in females. In the regression models of body height and body weight within a certain period, statistical regression model types which best indicated chronological average changes of body height and body weight, took 3rd Order Polynomial Regression Model rather than linear regression model. In females, statistical regression model types which best is suitable for chronological average change of body height and body weight, took 4th and 2nd Order Polynomial Regression Model respectively. The prediction value of 1995 by estimated polynomial regression model anticipated that body height of 3rd grade year students of high school of males in 1993 went on increasing from 170.87cm to 171.79cm in average 0.92cm growth and that of females from 158.99cm to 160.79cm in average 1.80cm growth. In addition, body weight of males seemed to increase from 62.58kg to 64.52kg in average 1.94kg growth and that of females seemed to increase from 54.05kg to 54.19kg in average 0.14kg growth. Linear Regression Model was suitable for the regression model of body weight for body height. Prediction on increase of an average body weight for body height was that, according to growth of body height 1cm in males, body weight increased 1.41kg averagely and that of females 0.86kg. For that reason, we came to conclusion that body weight increase for body height 1cm in males was greater than that in females on average.

  • PDF

Eruption Stage of Permanent Teeth Using Diagnostic Model Analysis in Kyung Hee Dental Hospital (경희대학교 소아치과에 내원한 아동의 진단 모형 분석을 이용한 영구치 맹출 단계)

  • Oh, Taejun;Nam, Okhyung;Kim, Misun;Lee, Hyo-seol;Kim, Kwangchul;Choi, Sungchul
    • Journal of the korean academy of Pediatric Dentistry
    • /
    • v.46 no.1
    • /
    • pp.10-20
    • /
    • 2019
  • Individual dental age is used as an index of chronological age estimation and is an important indicator of the child's growth stage. Dental age does change greatly over time, but it changes constantly. And updating information about this change is important. The purpose of this study was to provide information about tooth eruption stage using diagnostic model analysis and to investigate tooth eruption sequence and estimate chronological age based on this information. Tooth eruption stages were measured on a diagnostic model from 488 patients in 5 - 13 year old children. Based on the information on eruption stage, eruption sequence in maxilla was first permanent molar, central incisor, lateral incisor, first premolar, canine, second premolar and second permanent molar. Eruption sequence in mandible was first permanent molar, central incisor, lateral incisor, canine, first premolar, second premolar and second permanent molar. There were significant differences between males and females in the eruption stage of canine, first and second premolar, and second molar at several ages. The chronological age of male and female was estimated by the coefficient of determination of 0.816, 0.826 respectively.

Gene Expression Analysis of Acetaminophen-induced Liver Toxicity in Rat (아세트아미노펜에 의해 간손상이 유발된 랫드의 유전자 발현 분석)

  • Chung, Hee-Kyoung
    • Toxicological Research
    • /
    • v.22 no.4
    • /
    • pp.323-328
    • /
    • 2006
  • Global gene expression profile was analyzed by microarray analysis of rat liver RNA after acute acetaminophen (APAP) administration. A single dose of 1g/kg body weight of APAP was given orally, and the liver samples were obtained after 24, 48 h, and 2 weeks. Histopathologic and biochemical studies enabled the classification of the APAP effect into injury (24 and 48 h) and regeneration (2 weeks) stages. The expression levels of 4900 clones on a custom rat gene microarray were analyzed and 484 clones were differentially expressed with more than a 1.625-fold difference(which equals 0.7 in log2 scale) at one or more time points. Two hundred ninety seven clones were classified as injury-specific clones, while 149 clones as regeneration-specific ones. Characteristic gene expression profiles could be associated with APAP-induced gene expression changes in lipid metabolism, stress response, and protein metabolism. We established a global gene expression profile utilizing microarray analysis in rat liver upon acute APAP administration with a full chronological profile that not only covers injury stage but also later point of regeneration stage.

Exploring the Microscopic Textual Characteristics of Japanese Prime Ministers' Diet Addressesby Measuring the Quantity and Diversity of Nouns

  • Suzuki, Takafumi;Kageura, Kyo
    • Proceedings of the Korean Society for Language and Information Conference
    • /
    • 2007.11a
    • /
    • pp.459-470
    • /
    • 2007
  • This study explores the textual characteristics, more precisely the quantity and diversity of nouns, of Japanese prime ministers' Diet addresses. In the field of stylistics, textual characteristics independent of the content have been examined with the aim on detecting the authors, genres, and chronological variations of texts. This study focuses instead on textual characteristics related to the content of texts, namely the quantity and diversity of nouns, because our aim is to analyze texts to better understand two political phenomena: (a) the difference between the two types of Diet addresses delivered by Japanese prime ministers, and (b) the perceived changes made to these addresses by two powerful prime ministers. It is a case study of the microscopic characterization of texts, which has become more and more important with the expansion in the scope of stylistics and the production of a wide variety of new types of texts following the advent of the Web.

  • PDF

Modeling temporal cadastre for land information management

  • Liou, Jae-Ik
    • Journal of Korean Society for Geospatial Information Science
    • /
    • v.10 no.5 s.23
    • /
    • pp.17-28
    • /
    • 2002
  • Time is regarded as an essential feature of land information enabling to track historical landmarks of land uses, ownerships, and taxations based on cadastral maps. Object-oriented temporal modeling helps to simulate and imitate time-varying cadastral data in a chronological and persistent manner. The aim of study is to analyze the role of temporal cadastre tracing footprints of foregoing events in response to various needs and demands associated with historical information of cadastral transactions. In this paper, temporal cadastral object model (TCOM) is proposed to delineate object version history. As an evidence of a new approach and conceptual idea for the importance of temporal cadastre, a part of spatio-temporal processes is illustrated to explain major changes of cadastral map. The feasibility and application of the approach is confirmed by proof-of-concept of temporal cadastre in land information management.

  • PDF

SOME POWER UPRATE ISSUES IN NUCLEAR POWER PLANTS

  • Tipping, Philip
    • Nuclear Engineering and Technology
    • /
    • v.40 no.4
    • /
    • pp.251-254
    • /
    • 2008
  • Issues and themes concerned with nuclear power plant uprating are examined. Attention is brought to the fact that many candidate nuclear power plants for uprating have anyway been operated below their rated power for a significant part of their operating life. The key issues remain safety and reliability in operation at all times, irrespective of the nuclear power plant's chronological or design age or power rating. The effects of power uprates are discussed in terms of material aspects and expected demands on the systems, structures and components. The impact on operation and maintenance methods is indicated in terms of changes to the ageing surveillance programmes. Attention is brought to the necessity checking or revising operator actions after power up-rating has been implemented.