• Title/Summary/Keyword: useful life-time

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Succession of Bacterial Populations in Cattle Manure Compost as Determined by Fluorescent In Situ Hybridization (우분 퇴비화에서의 Fluorescent In Situ Hybridization법에 의한 세균군집의 천이)

  • Lee, Young-Ok;Jo, Ik-Hwan;Kim, Kil-Woong
    • Journal of the Korea Organic Resources Recycling Association
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    • v.8 no.2
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    • pp.146-153
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    • 2000
  • To elucidate succession of bacterial populations, especially nitrifying bacteria during the composting of cattle manure with apple pomace, fluorescent in situ hybridization(FISH) using rRNA targeted oligonucleotide probes were applied. The density of ammonia-oxidizing bacteria was ranged from $3,3{\times}10^6cells/g$ dw to $13,4{\times}10^6cells/g$ dw with the peak value after 26 composting days whereas that of nitrite-oxidizing bacteria varied between $6.0{\times}10^6cells/g$ dw and $17.2{\times}10^6cells/g$ dw with the peak value after 7 composting days. And the tendency that the numbers of nitrite-oxidizing bacteria were higher than those of ammonia-oxidizing bacteria, and the peak-time of their densities were the same as that of data determined by the ratio of ammonia-oxidizing bacteria and nitrite-oxidizing bacteria to eubacteria. The peak of ammonia-oxidizing bacteria followed the peak of nitrite-oxidizing bacteria, at the late phase of composting process could be probably caused by the depletion of volatile ammonia of composting materials. Besides these results indicate that FISH method is a useful tool for detection of slow growing nitrifying bacteria.

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A Study of the Influence of illness on Body Image and Self Concept -Specifically in Children with Asthma- (만성 질환이 자아개념 (Self Concept)과 신체상(Body Image)에 미치는 영향 -천식 환아를 중심으로-)

  • 장효순
    • Journal of Korean Academy of Nursing
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    • v.12 no.2
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    • pp.80-90
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    • 1982
  • This study was undertaken to determine the influence of a chronic disease on body image, and to show that body image is directly related to one's self concept. Body image is the concept of one's own body based on present and past perception, and is elated to one's self concept. Body image is a dynamic concept constantly changing throughout the life cycle but it changes greatly in illness, surgery, and accident. The child with a chronic disease experiences pain and immobilization due to illness and he/she experiences a strange environment in the hospital. illness often brings feeling of frustration and loss of self-esteem. Therefore this study was done to compare the body image of a child with a chronic disease(Asthma), with that of a normal healthy child, and to determine the relationship between the body image and self concept. The subjects in this study were 36 children being treated for asthma at the allergy clinic of Y University Hospital in Seoul (patient group) and 44 children attending elementary school in Kwanak Ku Seoul (normal healthy group). For the measurement of the body image, the researcher used Secord & Jourard's Body Cathexis Scale, and another scale which was constructed after reading about Osgood's Semantic Differential Method. For the measurement of the self concept, the researcher used Jacox & Stewart's Health Self Concept. The period for data collection was from October 7th to October 27th, 1982. The analysis of data was done by use of Percentage, t-test, Chi-square test, Pearson Correlation Coefficient and ANOVA, The results of the study were as follows: 1. The first hypothesis,“That the chronically ill (Asthma) child will have a more negative body image than the normal healthy child.”was supported. 2. The second hypothesis,“The more negative the body image, the lower the self concept.”was also supported. 3. The researcher failed to obtain statistically significant results in the analysis of the general characteristics which affect the body image except in the case of the older child as compare to the younger Child having a mole positive body image (r=.2751, r=.2481, p<.05). However it was found that, 1) Boy's have a more positive body image than girls (Mean=〔37.81, 141.09〕,〔37.00, 126.54〕), 2) The child who has been hospitalized has a more negative body image than the child who has never been hospitalized (Mean=〔33.25, 122.45〕,〔35.68, 129.93〕). 3) The younger the child when the disease is discovered and diagnosed, the more negative the body image (Onset of illness: Mean=〔31.44, 117.33〕,〔34.00, 103.50〕, 〔35.75, 140.38〕,〔36.33, 130.00〕, Time of Diagnosis: Mean=〔29.00, 117.33〕,〔33.89, 115.00〕,〔33.36, 124.93〕,〔37.10, 139. 20〕). In conclusion the chronically ill(.Asthma) child has a more negative body image than the normal healthy child, and the more negative the body image the lower the self concept. Therefore the concept of body image is useful in understanding the influences of chronic disease on body' image and self concept.

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Damage Measurement for Molybdenum Thin Film Using Reflection-Type Digital Holography (반사형 디지털 홀로그래피를 이용한 Molybdenum 박막의 손상 측정)

  • Kim, Kyeong-Suk;Jung, Hyun-Il;Shin, Ju-Yeop;Ma, Hye-Joon;Kwon, Ik-Hwan;Yang, Seung-Pill;Hong, Chung-Ki;Jung, Hyun-Chul
    • Journal of the Korean Society for Nondestructive Testing
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    • v.35 no.2
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    • pp.141-149
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    • 2015
  • In the fabrication of electronic circuits used in electronic products, molybdenum thin films are deposited on semiconductors to prevent oxidation. During the deposition, the presence of a particle or dust at the interface between the thin film and substrate causes the decrease of adhesion, performance, and life cycle. In this study, a damage measurement targeting two kinds of glass substrate, with and without particles, was performed in order to measure the change in the molybdenum thin film deposition area in the presence of a particle. Clean and dirty molybdenum thin film specimens were fabricated and directly deposited on a substrate using the sputtering method, and a reflection-type digital holographic interferometer was configured for measuring the damage. Reflection-type digital holography has several advantages; e.g., the configuration of the interferometer is simple, the measurement range can be varied depending on the magnification of a microscopic lens, and the measuring time is short. The results confirm that reflection-type digital holography is useful for the measurement of the damage and defects of thin films.

A Comparative Study on the Housing Viewpoint between Korean and Chinese University Students (한.중 대학생의 주거관에 대한 비교 연구)

  • An, Ok-Hee;Jo, Oung-Mi;Hao, Jia
    • Journal of the Korean housing association
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    • v.20 no.4
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    • pp.121-129
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    • 2009
  • Today, we are living while interchanging with various countries in multilateral measures and residential culture have been changed while interchanging in the same manner. In order to become an internationally recognized residential environment designer in this environment, we must understand the housing viewpoint of residents in that country first. Therefore, this study is intended to obtain the useful materials for residential environment design of Korea and China by comparing the housing viewpoint between Chinese students studying in Korea and Korean students. A survey using questionnaire was conducted on 205 Korean students and 193 Chinese students (Chinese race) from Y University on a random sampling basis. The result of survey is as follows. First, as both Korean and Chinese university students have a similar tendency on previous house type, current house type, and desired house type, it can be understood that they are similar each other in the experience and preference of house type. Second, Korean and Chinese university students consider and as the most important functions of residence, but Chinese university students consider more functions of residence than Korean students. And, both Korean and Chinese students consider a living room as the most important space among housing spaces, but Chinese consider a private room more importantly than Korean. Third, Chinese university students have stronger desire to possess houses, and desire to purchase houses with larger and more rooms at earlier time than Korean university students. Fourth, when selecting the house, Chinese university students give a higher consideration in terms such as , , , , and than Korean university students. Fifth, satisfaction level of Korean students on current houses was average as a whole, and most Chinese students were generally satisfied with their houses. Sixth, as both of Korean and Chinese university students have higher level of consideration in the items such as safety>, , , , , , , , , , and compared to the level of satisfaction, thoughtful consideration should be given to those items in housing planning.

Detection of Superior Markers for Polymerase Chain Reaction Diagnosis of Breast Cancer Micrometastasis in Sentinel Lymph Nodes

  • Shargh, Shohreh Alizadeh;Movafagh, Abolfazl;Zarghami, Nosratolah;Sayad, Arezou;Mansouri, Neda;Taheri, Mohammad;Pour, Atefeh Heidary;Iranpour, Mostafa;Ghaedi, Hamid;Montazeri, Vahid;Massoudi, Nilofar;Hashemi, Mehrdad;Mortazavi-Tabatabaei, SA
    • Asian Pacific Journal of Cancer Prevention
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    • v.17 no.sup3
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    • pp.179-183
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    • 2016
  • Breast cancer is the most prevalent type of cancer among women around the world, and mortality is primarily caused by micro-metastatic disease. The complex mechanisms of breast cancer invasion and metastasis are intrinsically related to the malignant cell type so that early detection of micro-metastases can help prolongation of survival for patient. The aim of the present research work was evaluation of the expression status of mammoglobin protein as a candidate molecular marker in the negative sentinel lymph node (SLN). Fifty tumor specimens, and 50 normal adjacent breast tissue samples from the same patients were selected on the basis of having more than 10% tumor content for RNA extraction from SLNs. Tumor samples and normal adjacent breast tissue were archived in the form of frozen fresh tissue in liquid nitrogen. Real-time PCR was performed on a Bioner life express gradient thermal cycler system. Mammoglobin gene overexpression in breast cancer metastasis was investigated. Single marker results were mammaglobin 66.7% and CK19 50.0%, with 58.3% for the two in combination. Due to improved outcome with at least 3 genes (83.3%), it seems, triple marker evaluation will be most likely useful for detecting micro-metastases instead of studying separate genes.

CLINICAL STUDY ON THE ETIOLOGY, DIFFERENTIAL DIAGNOSIS AND TREATMENT OF TRISMUS (개구장애 환자의 병인, 감별진단 및 치료방식에 대한 임상연구)

  • Kang, Hee-Jea;Hwang, Dae-Seok;Kim, Yong-Deok;Shin, Sang-Hun;Kim, Uk-Kyu;Kim, Jong-Ryoul;Chung, In-Kyo
    • Journal of the Korean Association of Oral and Maxillofacial Surgeons
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    • v.32 no.6
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    • pp.544-558
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    • 2006
  • Trismus is a common problem to most people experiencing at once in his or her life and to most dental practitioners experiencing frequently. It has a number of potential causes which are single factor or complex factors. Its treatment will depend on the cause. The purpose of this study was to discuss the causes of trismus condition and the various treatments available. This study was made by reviewing of collected data from 86 patients complained of trismus among patients who were diagnosed by TMD, tumor, infection including tetanus, soft tissue anomalies, bony fracture and ankylosis from Jan 2002 to Dec 2004 on department of oral and maxillofacial surgery at Pusan National University Hospital, South Korea. The clinical reviews regarding chief complaints, clinical characteristics, diagnostic examination, treatments and the results on the patients were given as follows. 1. The etiology of trismus commonly were derived from temporomandibular joint(TMJ) disorder, TMJ ankylosis, TMJ tumor, odontogenic maxillofacial infection, mandibular condylar fracture, tetanus. 2. The chief complaints of trismus patients were progressive mouth opening limitation, TMJ pain, malocclusion, facial asymmetry, retrognathic state. 3. Especially, for the differential diagnosis between the fibrous ankylosis and true bony ankylosis, computed tomogram (CT) was useful. Surgical gap arthroplasty on bony ankylosis patients was applied and the gain of mouth opening after operation was average 35.8 mm during 19 months. 4. The tetanus, rarely, also induced the trismus with the range of mouth opening less than 10 mm. The average serum level of tetanus anti-toxin was 0.02-0.04 IU/mL. The limitation of mouth opening was improved into average 38 mm on 4 weeks after injection of 10,000 units of tetanus immune globulin. 5. In the treatment of osteochondroma, TMD, odontogenic infection and fracture, and the others inducing trismus, to obtian the maximum result and decreased inadequate time and effort, it is important to finding the causes from the exact clinical examination and diagnosis.

An Analysis of Satisfaction with School Forest Using Triangular Fuzzy Number (삼각퍼지수를 활용한 학교숲 만족도 분석)

  • Lee, Seul-Gi;Jang, Jung-Sun;Jung, Sung-Gwan;You, Ju-Han
    • Journal of the Korean Institute of Landscape Architecture
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    • v.37 no.3
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    • pp.1-10
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    • 2009
  • Wooded areas that are a part of school campuses are one type of urban forest. Most schools located in an urban environment make an excellent setting for a forest in terms of location and area. These kinds of wooded spaces also make the city greener and healthier. As a place where students spend a great deal of time, schools can also be a venue for environmental education. The creation of wooded areas in schools currently has focused on the end result only; by ignoring student needs and participation, these areas have not had a significant influence on student environmental education. Previous studies based on questionnaire survey are significant in that they have quantified subjective qualitative data via Likert Scale. There has been, however, a problem in quantifying the more ambiguous subjective data. Therefore, this paper has attempted to investigate those factors that have an influence on student satisfaction with the wooded areas of their school campus using Fuzzy Theory with elementary school students in Gyeongsangbuk-do. A change was observed in terms of the ranking of arithmetic mean values of 'school peculiarity' and 'emotion evolution' and center of gravity, which has adopted Fuzzy Theory, proving that Fuzzy Theory could rationally objectify qualitative data such as human thoughts. In terms of the influential factors on the satisfaction with school forests(regression coefficient), 'school uniqueness(0.159)' was the highest, followed by 'many trees(0.142),' 'importance of nature(0.136)' and 'emotion evolution(0.130).' This paper may therefore be useful as basic data for objective questionnaire surveys and the development of school forests.

RBAC-based health care service platform for individual recommended health information service (RBAC에 기반한 개인 맞춤형 건강 정보 제공 헬스케어 서비스 플랫폼)

  • Song, Je-Min;Kim, Myung-Sic;Jeong, Kyeong-Ja;Shin, Moon-Sun
    • Journal of the Korea Academia-Industrial cooperation Society
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    • v.15 no.3
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    • pp.1740-1748
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    • 2014
  • In this paper, we propose an RBAC based personalized health care service platform in order to provide smart management of personal health record using smart devices. It helps to guide healthful service and provide useful information according to one's individual health record. Personalized health care services platform supports a healthy lifestyle by measuring personal health information in a hospital clinical, imaging, and drug data, as well as that can be obtained from smart devices. Everyone can enter his health related data in everyday life such as food, sleeping time, mood, movement and exercise so that one can manage his personal health information of modern smart features. In addition, if necessary, personal health information can be provided to the hospital information system and staff with the consent of the individual. It can be contributed to simplify the complex process for remote medical. The proposed platform, which applies role based access control model to protect security and privacy, supports a smart health care services for users by providing personalized health care services through the smart applications.

Crop Loss Survey by Wildlife in National Parks of Korea (한국 국립공원 내 야생동물과 농작물 피해)

  • Yoon, Seong-Il
    • Korean Journal of Environmental Biology
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    • v.25 no.3
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    • pp.223-227
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    • 2007
  • Crop loss and damage by wildlife are becoming more serious to residents inside and around National Parks of Korea annually. It could be caused by small size of Parks, which is couples of ten $km^2$ only, and more than a third of total parks' areas are belonging to privates. Wild boar (Sus scrofa) is one of the most harmful pests in nationwide. Treading down crop field using as bedding or resting site are major damaged types and foraging behavior is following. Besides of boars, Korean water deer (Hydropotes inermis), racoon dog (Nyctereutes procyonoides), and badger (Meles meles) are another serious pests. Mainly, farm products planted in upland, such as corns, sweet potatoes, cabbages, etc. are harmed easily, a rate reaches up to 76.9% of whole losses. 92.4% (n=187) of interviewees, who are mostly seniors, cultivate small crop fields smaller than 1 ha. Crop damage would be started from June to late November, time differences are happened due to latitude, climate condition, and crop differences of National Parks. Dusting animal repellents are easier and widespread methods to prevent animal foraging to crop fields and installing noisy makers using gun powder and setting up scarecrows are traditional methods for repelling animals. Nevertheless, effects of these self-defence are turned out to be useful soon after labors done only. Since legal compensation for crop damages by wildlife are not prepared systematically so far, crop loss are rarely reported to local government by most farmers. Systematic and objective methods for quantifying of crop loss by wildlife and population managements system should be offered urgently to well-managed animals habitat and residents' living inside National Parks.

Anti-diabetic Effects of Isaria tenuipes in OLETF Rats as an Animal Model of Diabetes Mellitus Type II (제 2형 당뇨모델 OLETF 랫드에서 동충하초의 항당뇨 효과)

  • Seo, Dong-Seok;Kang, Jong-Koo;Jeong, Mi-Hye;Kwon, Min;Park, Cheol-Beom
    • Journal of Food Hygiene and Safety
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    • v.28 no.2
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    • pp.152-157
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    • 2013
  • We evaluated the anti-diabetic effects of Isaria tenuipes in diabetes mellitus type 2. For the experiments, the diabetic animal model OLETF rats were divided to 4 groups: Isaria tenuipes was administered mixed with the high fat diet 45% at dose levels of 0.0%, 0.1%, 1.0%, and 5.0% for 4 weeks. All animals have free access to water and high fat diet 45%. The diabetic clinical markers, including clinical signs, body weight and food intake, organ weights, blood glucose level, insulin level and HOMA-IR index, oral glucose tolerance test, GLUT4 mRNA and protein were measured at a time. After administration for 4 weeks, the blood glucose levels, insulin levels and HOMA-IR index of test groups were decreased compared with control group in dose-dependent manner. The body weight and diet consumptions were reduced in control group at 4 weeks. The treatments of Isaria tenuipes also showed high expression of GLUT4 mRNA and protein in the muscle of OLETF rats. The results suggest that Isaria tenuipes has anti-hyperglycemic effect attenuating blood glucose in the animal model of type 2 diabetes and might be useful as a functional diet for human diabetic diseases.