• Title/Summary/Keyword: base age

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Body Size and Age Structure of Mating Couples in Boreal Digging Frog(Kaloula borealis) (맹꽁이 포접쌍의 개체크기와 연령구조)

  • Ko, Sang-Beom;Ko, Young-Min;Lee, Jeong-Hyun
    • Korean Journal of Environment and Ecology
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    • v.28 no.3
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    • pp.281-286
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    • 2014
  • This study was conducted to investigate the individual size and age of Kaloula borealis, a pair in amplexus. In June 2013, the total 23 pairs of Kaloula borealis were captured in the wetland located in Seongsan-eup and Daejeong-eup, Jeju Island. Size and age of each individual have been examined and as a result of analyzing SVL (snout-vent length), weight, length of forelimb and hindlimb of the collected 23 pairs, the females were shown to have the heavier weight and the longer SVL and hindlimb compared to males. No significant difference in the length of forelimb has been found between the female and the male. The average age of the male of the pair in amplexus was shown to be $5.17{\pm}0.26$, whereas the female was shown to be $6.22{\pm}0.28$, which indicates the higher average age in female compared to the male. The age range of Kaloula borealis was distributed from at least 3 years to 10 years at the maximum. A positive correlation was shown between age of the male and SVL; however, no significant difference was found in female. This study result expected to be utilized as an important base data in establishing the preservation and restoration strategy of endangered species, Kaloula borealis.

Identification of Compliance Function for Early-Age Concrete Based on Measured Strain & Thermal Stress Histories (변형률 및 열응력 이력 계측을 통한 초기재령 콘크리트의 컴플라이언스 함수 추정)

  • Oh, Byung-Hwan;Shin, Joon-Ho;Choi, Seong-Cheol;Cha, Soo-Won
    • Journal of the Korea Concrete Institute
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    • v.15 no.5
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    • pp.662-669
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    • 2003
  • Recently, the serviceability and durability of concrete structures under thermal load have received great attention. The thermal stress and clacking behavior of concrete at early ages are one of the important factors that affect such serviceability and durability of concrete structures. Nevertheless, most studies on the behavior of early-age concrete have been confined to the temperature and strain development itself in the laboratory. The desirable efforts to explore the material properties of concrete at early-ages have not been made extensively so far. The purpose of the present study is, therefore, to identify some important material properties that affect the stress behavior of concrete at early-ages. To this end, full-scale concrete base-restrained wall members have been fabricated, and many sensors including thermocouples, strain meters and stress meters were installed inside of the wall members. These sensors were to measure the development of temperatures, strains and stresses at several location in concrete walls during the hardening and curing phase of early-age concrete. By using these measured values of strain and stress, the compliance function at early-age was identified. The basic form of compliance function derived in this study follows the double-power law. However, the results of present study indicate that the values of existing compliance functions are much lower than actual values, especially at very early-ages. It can be seen that the prediction of stresses of early-age concrete based on the proposed compliance function agrees very well with test data. The present study allows more realistic evaluation of varying stresses in early-age concrete under thermal load.

Effects of Castration on Androgen Receptor, IGF-I Ea, MGF and Myostatin Gene Expression in Skeletal Muscles of Male Pigs

  • Yao, Yuchang;Cai, Zhaowei;Zhang, Lifan;Zhao, Chunjiang;Wu, Keliang;Xu, Ningying;Liu, Gang;Wu, Changxin
    • Asian-Australasian Journal of Animal Sciences
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    • v.22 no.8
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    • pp.1069-1077
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    • 2009
  • Castration of male pig produces significant negative effects on skeletal muscle development. The androgen receptor (AR), two splice variants of insulin-like growth factor-I (IGF-I Ea and MGF) and the myostatin gene may play important roles in this process. In the present study, the expression of AR, IGF-I Ea, MGF and myostatin genes in three skeletal muscles, the brachialis, longissimus and semitendinosus, were studied using real-time quantitative RT-PCR. Our experimental design used 14 pairs of male Landrace sire${\times}$Yorkshire dam piglets. The two piglets in each pair were full sibs, one of which was castrated at 21 d of age; the other remained intact. The study group was divided into subgroups of equal size. Animals in the first subgroup were slaughtered at 147 d and those of the second at 210 d of age. Carcass weight and lean meat yield were similar between boars and barrows at 147 d of age (p>0.05), whereas barrows had lower carcass weight and less lean meat yield at 210 d of age (p<0.05). Castration caused down-regulation of AR gene expression at both 147 and 210 d of age (p<0.05). The two splice variants of the IGF-I gene from porcine skeletal muscle were cloned using RT-PCR, and it was found that MGF differs from IGF-I Ea in having a 52-base insert in the last coding exon of the mRNA. Both splice variants were down-regulated by castration only at 210 d of age (p<0.05). No differences in expression of the myostatin gene were observed between boars and barrows at either 147 or 210 d of age (p>0.05). These results suggest that the downregulation of AR, IGF-I Ea and MGF gene expression following castration helps to explain the negative effect of castration on skeletal muscle development.

Analysis of Public Service Utilization for Children and Youth : comparison among different age groups (아동·청소년 관련 공공 서비스 이용 분석: 학교급별 차이)

  • Jang, Yeon Jin;Seo, Jeong-A
    • The Journal of the Korea Contents Association
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    • v.20 no.6
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    • pp.653-667
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    • 2020
  • The Purpose of this study is to propose an effective service delivery system for children and youth considering service users and developmental stage. To accomplish this purpose, this study examined public service utilization for children and youth focusing on age difference, using statistical method and network analysis. The key results were as follows. The significant difference of service utilization among different age groups appeared in community center, youth training center, healthy family support center, public health center, public office and office of education. In terms of service utilization for special needs, the differences in Wee Center, Wee School and community child center were significant. Top value of degree centrality in network analysis showed on public heath center for elementary school, youth training center for middle school, and community center for high school. Finally, modeling results by Concor presented several distinctive relationship patterns in public service utilization for children and youth according to different age groups. On the base of these results, building a gateway applying age difference and developing a individualized service utilization database were suggested to improve the quality of service delivery system for children and youth.

A Study on the Effect of Skin Management which is based on the Lifestyle of Middleaged and Old Age Women (중.노년층 여성의 라이프스타일에 따른 외모 관리 효과에 관한 연구 - 피부 관리 효과를 중심으로 -)

  • Lim, Hee-Kyung;Choi, In-Ryu
    • The Research Journal of the Costume Culture
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    • v.18 no.4
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    • pp.670-686
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    • 2010
  • This study aims at clarifying the action types of skin management which is base on age, marriage or not, family composition, school career, and income which are demographic variables centering around the lifestyle of middleaged and old age women. As for study method, this researcher executed literature study and questionnaire on adult women over 45 years old who dwell in Seoul and Kyounggi area. Survey period was Mar. 1, 2009 to Jun. 30. And, after distributing 1,000 copies of questionnaire, this researcher used effective 869 copies of questionnaire for analysis out of collected questionnaire, 895 copies. As for analysis method, this researcher executed DUNCAN test with factor analysis, reliability analysis, manin component analysis, K-average, multitude analysis, dispersion analysis and post verification by using SPSS 12.0 program. As for demographic feature for middle aged and old age women, 50~59 years old women were most by age as 302 persons(33.7%). It is emerging that spouse existence is very high as 674 persons(75.3%) in the answer for marriage or not, couple family to live with unmarried children is very high as 483 persons(54.0%) in the answer for family composition, leaving high school in mid-course or gradation of high school are very high as 356 persons(39.8%) in the answer for school career, income from 3 million Won under 4 million won is very high as 260 persons(29.1%) in the answer for monthly income of family members, and women to use under 50 thousand won is very high as 510 persons(57.0%) in the monthly average expense to be used for skin management. In this study, this researcher extracted total 5 factors (economic saving, displaying consumption, confidence inclination, centering around family, and leisure application) by executing factor analysis with 12 question items of lifestyle so as to grasp factor structure of lifestyle of middleaged and old age people, and whole explanatory variable quantity was 70.9%. This researcher named as economic saving type, diplaying consumption style, and type centering around leisure and family, after making multitude analysis about 5 factors analyzed by measuring lifestyle feature. As the result of structure analysis of question items of skin management(pursuit of skin management, life of skin management, and inclination of skin management), this researcher extracted total 3 factors, and whole explanatory variable quantity was 71.30%. Thus, it emerged that there is significant difference among groups.

MenuGen: Menu Planning and Recommended Menu Search System for Promotion of Self Sufficiency of Korean Food (MenuGen: 한국 식량자급률 향상을 위한 인터넷 기반의 권장식단검색 및 식단작성 프로그램)

  • Hong, Sun-Myeong;Bae, Jae-Hak;Kim, Gon;Choe, Jeong-Suk;Kim, Yeong-Ok
    • Journal of the Korean Dietetic Association
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    • v.10 no.3
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    • pp.272-283
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    • 2004
  • This study was conducted to develop menugen program: Korean recommended menu planning and search based on internet to promote self sufficiency of food in Korea. This program manipulate menu and search 432 Korean recommended menus which have been developed in combination of population characteristics of 9 age level, 3 residential areas, 3 income groups, four seasons and male or female. Clients can select the high self sufficiency recommended menu by inputting their age, residental area, income, season and sex in using Menugen program. MenuGen can analyze nutrients and compare with Korean Recommended Allowance about clients' menu based on their age and sex. It can access the food, dish and menu databases. And also client can use MenuGen program for menu planning and analysis nutrients. Client's menu data can be store, delete, modify and print through MenuGen too. It will be able to read the nutrition analysis data of the foods, the dishes and the menu. Therefore it provides convenient user interface to not only users but also dietitians and nutritionists, who take charge of making a menu, and experts in the field of food and nutrition. MenuGen will help the nutrition policy accomplishment and the food self-supply rate improvement of the nation with use of menu drawing up program of internet base.

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The Role and Treatment Mind of Sasang Constitutional Medicine in Human Genome Age (Human Genome 시대에 부응하는 사상체질의학(四象體質醫學)의 역할과 치료정신)

  • Song, Il-Byung
    • Journal of Sasang Constitutional Medicine
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    • v.15 no.2
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    • pp.1-8
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    • 2003
  • 1. Objects of Research This research is purposed to find role and treatment mind of Sasang constitutional medicine in human genome age, through summarizing recognition of human and etiology. treatment on diseases proposed in Sasang constitutional medicine 2. Methods of Research It was researched as bibliologically with Dong-mu's chief medical writings such as ${\ulcorner}Dongyi$ Soose Bowon(東醫壽世保元)${\lrcorner}$, ${\ulcorner}$Dongyi Soose Bowon Sasang Chongyun(東醫壽世保元四象草本卷${\lrcorner}$. 3. Results and Conclusions 1. The outlook on human of Sasang Constitutional Medicine was completed in the base on Confusianism and it recognized that human is consisted with congenital element based on 'Human nature-shape' and acquired element based on Knowledge-Acting. Dong-mu emphasised acquired element than inborn element. 2. Sasang Constitutional Medicine is thought that we ran overcome inborn limitation of each constitution through moral culture of aposteriori Knowledge-Acting. and that self-correction is methods which is applied to treatment of disease recovering Essential Qi of each constitution with moral culture of personality 3. Sasang Constitutional Medicine is recognizing Essential Qi by main standard that foretell prognosis of disease and emphasize recovery of Essential Qi through self-correction than way of 'Assisting-Good Qi' and 'Removig-Bad Qi' in treatment of disease. 4. Self-correction can be divided into non-herbal self-correction and herbal self-correction. Non-herbal self-correction is to control greed by aposteriori Knowledge-Acting and herbal self-correction is to recover Essential Qi by herb. 5. It is thought that the present constitutional disease is consisted by accumulating life habit nature of a disease of ordinary times, and Sasang Constitutional Medicine that present constitutional disease is treated through administration of life habit nature of a disease of ordinary times in Sasang Constitutional Medicine. 6. Treatment mind to correct oneself into Golden Mean through controlling Knowledge-Acting in Sasang Constitutional Medicine may get into important treatment guide of gene medicine age.

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Age Effects on Center of Mass during Obstacle Crossing (장애물 보행 시 노화에 따른 신체질량중심의 변화)

  • Son, Nam-Kuk;Kim, Hyeong-Dong
    • Journal of the Korean Society of Physical Medicine
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    • v.9 no.1
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    • pp.93-99
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    • 2014
  • PURPOSE: The purpose of this study was to compare three dimensional displacement and peak velocity of the center of mass (COM) during obstacle crossing in young and older adults. METHODS: 10 young adults (6 males/4 females, $24.6{\pm}1.9$ years, age range: 22.0-26.9) and 10 older adults (1 male/9 females, $76.9{\pm}5.1$ years, age range: 65.2-81.2) participated in the study. Both groups crossed an obstacle, which is 10% of leg length, and COM was measured using motion analysis system. Independent t-test was used to find significant differences between two groups. RESULTS: The older adults showed significantly greater and faster COM displacement and peak velocity in mediolateral (M-L) direction as compared with young adults (p<.01 and p<.001 respectively). However, the young adults showed significantly greater and faster COM displacement and peak velocity in anteroposterior (A-P) direction as compared with older adults (p<.05 and p<.001 respectively). Furthermore, the young adults showed faster peak velocity of COM in vertical direction as compared with older adults (p<.001). However, no significant difference was found in the COM displacement in vertical direction between two groups. CONCLUSION: Greater and faster COM displacement and peak velocity in M-L direction in older adults were due to compensatory adjustment for appropriate contact on base of support of swing limb. Thus, the motion of the COM in M-L direction may be a crucial factor to identify risk of falls in older adults.

A Study on the Eventual Aspects of Contemporary Space Design based on the Subject (주체에 기초한 현대 공간 디자인의 사건성에 관한 연구)

  • Kim, Suk-Young;Kim, Moon-Duck
    • Korean Institute of Interior Design Journal
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    • v.20 no.3
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    • pp.98-109
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    • 2011
  • To interpret a change of discourse can be a method to understand architectural space in progress. With this idea, features of modern age which motivated sense of the contemporary were considered in this study and subsequently characteristics of contemporary space differentiated from the modern were researched. First of all, features of subject which provided a base of modern thoughts were contemplated. The word 'modern' is used in wide and various terms but basically its core conception consists of reason and universal rationality. The subject of the modem age has vision-centric features just like an ideal representation principle of perspective. Given the fact, it was confirmed that a position to become a right subject, that is, a position controlled by reason existed and that it was to guarantee subject a truth. However, the contemporary subject keeps changing with a purpose of escaping from modern characteristics. It presents a tendency to escape from rationalism of the modern age and Platonism of the ancient Greece which established a basis of western ideology. The subject-centered ideas came to focus on the structure and relationship firmed fundamentally in deep inside of subject. The contemporary subject which escaped from the stiffen ideas bears a meaning through events taking place on immanence surface and serialization. Also, the contemporary architectural space is considered to go abreast with the change and trend. In conclusion, this study proved that features of event-oriented architectural space based on the changing contemporary subject appear as process-based space, user-participated space and individual-cognition space and the like.

The Relationship Between Interior Style of Residential Space and the Elderly' Cognitive Age - Focused on Bedroom and Living Room - (노인의 인지연령과 주거공간의 인테리어 스타일과의 관계 - 침실과 거실공간을 중심으로 -)

  • Oh, Chan-Ohk
    • Korean Institute of Interior Design Journal
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    • v.24 no.3
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    • pp.95-103
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    • 2015
  • Many housing alternatives and design guidelines for the elderly have been suggested along with the rapid increase of old persons. However, most of them focused on the spatial composition and fixtures. They do not address on interior style which affects on interior mood. The interior style is especially important to the elderly who spend most of their time in indoor space, such as housing unit or nursing home. On the base of these backgrounds, the purpose of this study is to examine what interior style of bedroom and living room where the elderly lives are and whether they are significantly different depending on their cognitive ages, or not. The subject were 202 old persons who lived in Busan. Their ages were more than 65 years. They were interviewed by using 3D images of bedroom and living room. Each one consisted of three interior styles; Korean traditional style, Western classical style, and modern style. The results were as followings; The interior style of bedroom and living room which the old persons lived were different depending on the elderly's cognitive ages. The younger the old persons' cognitive ages were, they lived in bedroom or living room of modern style. Also, the older their cognitive ages were, they lived in bedroom or living room of Korean traditional style. These results show that the cognitive age of the old persons affect the characteristics of interior design which they live. Also, it implies that the elderly are not one homogeneous group, but a heterogeneous one.