• 제목/요약/키워드: Household contacts

검색결과 21건 처리시간 0.024초

Development of a Sunscreen Stick Formulation which is Water Resistant but Easily Washable

  • Choi, Minsung;Song, Seungjin;Kang, Nae-Gyu
    • Korea Journal of Cosmetic Science
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    • 제2권1호
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    • pp.21-31
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    • 2020
  • The aim of this study is to develop a sunscreen stick formulation technology with excellent water resistance and washability. Consumers' needs for sunscreen products are diversifying. Water resistance and ease of washing are both important factors in sunscreen products. However, it is difficult to develop a sunscreen formulation that satisfies these two factors at the same time, because these two elements are in conflict. Fatty acid has a hydrophobic property against the water with low or neutral pH, but when it contacts with soapy water which has high pH, saponification occurs and the fatty acids become surfactants and can be dispersed in the water. Using the reaction characteristics of fatty acids, we can make sunscreen that is highly resistant to water or sweat, but is only selectively removed from soapy water. We found that the sunscreen stick containing fatty acids had better water resistance and washability than the sunscreen sticks without fatty acid. The sunscreen stick containing fatty acids showed a tendency to improve water resistance by scattering ultraviolet rays of long wavelength area by forming insoluble precipitation with divalent ions in tap water after immersion. In addition, an increase in the fatty acid content tended to also increase the ease of cleaning the sunscreen stick. Solid fatty acid was advantageous in improving water resistance than liquid fatty acid, but there was no difference between solid fatty acids and liquid fatty acid in washability. When it comes to stability, the sunscreen stick using liquid fatty acids maintained a high hardness and melting point, and showed no sweating. Based on this study, it is possible to develop an easy washable sunscreen stick formulation technology that has excellent water resistance but is selectively removed only in soapy water.

아파트 단지내에서 생활시설과 공간에 대한 주민요구고아 설치계획연구 (Resident's Requirement and Facilities Planning on the Shared Facilities and Space in the Multi-family Housing)

  • 손세욱
    • 한국주거학회논문집
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    • 제12권2호
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    • pp.25-34
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    • 2001
  • In this study, the shared facilities and space in the multi-family housing which residents could maintain contacts with their neighbors were investigated and analyzed. It could find the shared facilities and space so that residents could maintain to contact with their neighbors after surveying the dwellers requirements. Also it could specify the importance of the neighborhood common spaces and the conditions for the planning of the shared facilities. Analyzing residents requirement of set-up location, this study lead to the following suggestions concerning the facilities design: In the first neighborhood-circle, it require to be related the household affairs of housewives on the adjacent space to a dwelling-unit. In the second neighborhood-circle, it require especially the facilities for children play, study, reading, hobby etc. These facilities need establish each 4-5 floor in high-rise building estates. The roof & underground floors has been recognized in important & essential place for living facilities. Therefore, it is needed to improve to get ready to receive the various facilities.

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사물 인터넷 기반의 1인 가구를 위한 스마트 콘센트 시스템 (Smart Outlet System for Single-person Household based on IoT (Internet of Things))

  • 김희숙;박병주;조영주
    • 디지털콘텐츠학회 논문지
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    • 제18권5호
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    • pp.895-904
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    • 2017
  • 본 논문에서는 1인 가구를 대상으로 전기 안전, 전기 에너지 소비 관리 그리고 비상시 네트워크를 연결하여 예약된 연락처에 메시지를 전송하는 사물인터넷 기반의 스마트 콘센트 시스템 구축 방식을 제안한다. 제안된 스마트 콘센트 시스템은 서버와 모듈, 어플리케이션, WiFi AP 수신기 사이에 패킷 데이터와 프로토콜을 파싱하여 구현된다. 통신을 위해 구축된 WiFi AP는 콘센트 뿐 만 아니라 가스 차단, 도어락 등에 연결하여 사용하는 것이 가능하다. 또한 제안된 방식은 AC 전류센서(SCT-013)를 통해 받아온 해당 콘센트의 전력량을 실시간으로 수신하여 원격 모니터링 기능을 제공할 수 있다. 스마트 콘센트 시스템은 대기전력 차단 기능과 더불어 전력 사용 자동 분석을 통해 비상시 전력 자동 차단 기능까지 할 수 있을 것으로 기대한다.

경찰서비스를 경험한 시민의 만족도가 경찰신뢰에 미치는 영향: 북한이탈주민을 중심으로 (The Effect of Police Satisfaction on Trust in the Police: Focusing on the North Korean Refugees)

  • 홍문기;박종선
    • 디지털융복합연구
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    • 제18권9호
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    • pp.63-70
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    • 2020
  • 본 연구는 범죄 피해신고 과정에서 접촉했던 경찰관의 조치에 대한 만족이 경찰 신뢰에 미치는 영향을 조사하였다. 만 20세 이상의 대한민국에 거주하는 북한이탈주민을 연구대상으로 자기기입식 설문조사방법을 이용했다(N = 214). 다중회귀분석 분석에 의하면, 자신의 피해 신고에 대한 경찰관의 조치에 대하여 불만족을 느꼈던 탈북자들은 남한경찰 활동에 대해 낮은 신뢰를 보였다. 또한 주변 사람들에 대한 높은 신뢰를 보이는 탈북자들은 남한 경찰활동에 대해서도 높은 신뢰를 보였으며, 범죄피해를 경찰에 신고한 경험이 있는 탈북자들은 남한 경찰활동에 대해서도 높은 신뢰를 나타냈다. 주거지역의 범죄 발생이 증가한다고 인식한 탈북자, 여성탈북자, 남·북한 학교의 재학, 자동차 소유 등은 경찰 활동에 대해 낮은 신뢰를 보였다. 본 연구에서는 주민응대 교육프로그램과 법률 교육 개발 및 강화 등을 정책적 대안으로 제시하고 있다.

농촌의 전력및 전기기기의 이용특성분석 (Analysis of the Utilization Characteristics of Electrical Power and Equipments on the Farms)

  • 박승우;류한열
    • 한국농공학회지
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    • 제17권4호
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    • pp.3943-3955
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    • 1975
  • The purposes of this study are to evaluate the utilization characteristics of electrical power consumption, to grasp the present trends in the use of electrical equipments, to estimate the demand factor and load factor being held, and to evaluate the efficiency of electical uses for the recently electrified farms cultivating paddy rice. For the purposes, 109 sample farms located in eleven villiages electrified in six different years from 1968 to 1973, were chosen at random and investigated on 35 items concerning to electrical uses and wiring systems. The survey was carried out in 1975, in the vinicity of Suweon city. The results are summarized as follows: i) The average annual power consumption on sample farms is considered to be low, being 242.9 Kwh. in 1974, and varied according to the different electrified year and size of cultivated land, respectively. It has significant positive correlation to the area of farm, too. ii) Between the number of year of electrical uses and the power consumption, there is very significant positive correlation, which could be expressed as Y=43.041+16.108 X, where X represents the number of years of electrical uses. The annual increment of power consumption is much greater at the beginning of the electrification than that at the later years, its average being approximately 20 percent. However, it is recommended that any estimation of long-term increments should be carefully investigated. iii) The monthly power consumption varies considerably throughout a year, in which the heaviest farm load occurs in November. Observing the seasonal variation of consumption, the winter-time is the heaviest season while the summer is the lowest. The result implies house lighting is chief contribution to the present electrical consumption on the farms. Comparing the variation of monthly consumption ratios between the sample farms and industries, the electrical uses on the farms are independant of the industrial uses, and further, the agricultural uses are of inverse pattern to the farms from the results that there is negative correlationship between them, iv) The number of electrical equipments used on the farms are occupied chiefly by lighting sources. Next to the lighting sources, household appliances of small quantity and some motors are used. The mean electrical quantity is about 1, 127.4 watt, which corresponds to about 37.6 per cent to the contracted quantity. The composition of quantity is chiefly occupied by the electrical motor of about 1.5 hp., single-phased. The number of the annual utilization hours of each equipment is tabulated in Table IV-5. In contradiction to the high utilization of lighting sources and small household appliances, the motor is poorly used for approximately 22 hours in a year. v) More than 55 per cent of farms want to purchase new electrical equipments such as small household appliances and electrical motors in their number. The impulse of purchasing such items is stimulated by the contacts to the mass media and their knowledge on such equipments. Consequently, the increase of electrical uses could be prompted by such trials as education and demonstration. vi) The demand and load factors on the farms vary considerably according to the greater variation of the power consumption, daily or monthly. The daily demand factor is 22.4 per cent and load factor 18.6 per cent, while the annual demand factor is 1.3 per cent and load factor 70 per cent approximately. Therefore, the low efficiency of construction cost requires re-evaluation of the present contracted quantity of 3 Kw. or increase of electrical uses. vii) The electrical energy on the farms devoted chiefly to lighten the farm residences does not contribute to the farm incomes. Consequently, the cost of electrical consumption presses considerably upon the farm economy. Therefore, there is great need to build up the electrical uses on the farms through the development of new works and techinques to utilize any electrical equipments on the production of farm products. Further more, such the development should be related to increase the actual income of the farm consumers.

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도시-농촌 노인의 주관적 건강수준에 영향을 미치는 요인에 대한 비교 (The Comparision of the Influencing Factors on the Subjective Health Status of the Urban-Rural Elderly)

  • 이정훈;이희연
    • 한국지역지리학회지
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    • 제22권3호
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    • pp.553-565
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    • 2016
  • 고령화가 급속히 진전되면서 노인 건강에 대한 사회적 관심이 증가하고 있다. 본 연구는 도시와 농촌 노인을 대상으로 하여 노인의 개인적 특성과 사회적 관계망, 근린 여가활동에 따른 건강 수준 차이와 노인의 주관적 건강수준에 영향을 주는 요인들을 비교하는 데 목적을 두었다. 본 연구에서는 2011년 노인실태조사 자료를 바탕으로 5 등급으로 구분된 노인의 주관적 건강 수준을 토대로 순서형 로짓모형을 구축하였다. 모형의 추정 결과 개인의 인구 사회 경제적 특성뿐만 아니라 사회적 접촉과 근린 여가활동들도 도시와 농촌 노인의 건강 수준에 미치는 영향력이 상이하게 나타났다. 건강 수준에 가장 지대한 영향을 주는 요인은 노인의 경제적 수준(교육수준과 가구 소득)으로 나타났다. 또한 서울 노인의 경우 복지관을 이용하는 노인이 그렇지 않은 노인에 비해 건강 등급 1등급을 높일 오즈비가 1.82배로 나타났다. 본 연구 결과는 도시 노인과 농촌 노인의 건강 증진을 위한 정책을 수립하는데 필요한 정보를 제공하였다는 데 의의를 들 수 있다.

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울주군에서 발생한 장출혈성대장균 감염증의 발생 원인 (Cause of Enterohemorrhagic Escherichia coli Infection in Ulju County, Korea)

  • 이상원;양병국;이복권;박재구;황병훈;임현술;배근량
    • Journal of Preventive Medicine and Public Health
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    • 제36권1호
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    • pp.77-84
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    • 2003
  • Objectives : Two related cases of Hemolytic-Uremic Syndrome (HUS) were reported to the Korea National Institute of Health in May, 2001. Shiga toxin 2 genes were detected in both stool samples. We suspected an enterohemorrhagic Escherichia coli (EHEC) infection as the cause of the HUS, and conducted an investigation to find the source of the infection and its route of transmission. Methods : We peformed case investigations on these two related HUS cases, and obtained interviews and rectal swabs form the family members and other close contacts. Additionally, we peformed rectal swabs on the cattle raised by the household of the index patient. Results : We found a 20 month old index patient and a 6 year-old cousin had developed HUS, where there had been a 2 day history of contact with the index, and bacteriological examinations for these two patients revealed, indistinguishably, the same E. coli O171. The grandmother of the index patient was found to be asymptomatic, but E. coli O26 was isolated. We also found a probable case in the mother of the cousin. She reported a history of contact with the index, and developed bloody diarrhea of 3 days duration. The test results for the cattle revealed E. coli O26 in one cow, and E. coli O26 and O55 in another. E. coli O26, which was isolated in both cows and the grandmother of the index, were indistinguishably the same. Conclusions : We found that the E. coli O26 in the grandmother had originated from the cows, and that the E. coli O171 found in the index patient had been transmitted to the cousin through person-to-person contact.

주민(住民)의 전통의술(傳統醫術) 이용도(利用度) 조사연구(調査硏究) - 민속요법(民俗療法) 이용(利用)을 중심(中心) 으로 - (A Study on the Utilization Level of Traditional Medicine by Residents - On the basis of Use of Folk Medical Techniques -)

  • 김진순
    • 농촌의학ㆍ지역보건
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    • 제13권1호
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    • pp.3-18
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    • 1988
  • The general objective of this research is to study behavioral pattern of health care utilization and to measure the level of utilization of the traditional medicine. The specific objective is to study utilization pattern and content of folk medicine which is the indegenous medical technology recognized part of traditional medicine. This research was under taken to generate valid information that will provide basis data for formulating general direction for health education activities and for designing service package for general population. A social survey method was employed to obtain required information for the research activities, The survey field team consisted of 20 surveyors who all participated is an intensive 2 day training course. A total of 3091 households were visited and interviewed by the field team during the period 7 September to 6 October 1987. The major findings obtained from the information collected by the field survey are as follows ; 1) General characteristics of the study households 2562 households out of 3091 households visited were selected for final data process, 80.2 of the selected households were nuclear families ; 17.4%, extended families ; others 2.4%. Only 4.3 percent of the study population in the urban households indicated "no schooling" whereas 14.2% of the rural household members falls within this category. Study population in the urban areas are more protected against diseases by the national medical insurance system than those in rural areas. In their self appraisal of living standard, those who responded with low group are 39.6% and 50.3% respectively by urban and rural households. 2) Morbidity status Period prevalence rate for all diseases during the preceding 15 days before the date of the household interview v as 243,0 per 1,000 study population. For cases with the illness duration of within 15 days, the initial points of medical entry were diversied ; 56.9%, drug stores ; 30.9%, clinics and hospitals ; 4.6% folk medicine ; 1.7% clinics of Korean oriental medicine. Among the chronic case; with illness duration of over 90 days, 34.6% of these people utilized clinics and hospitals of modern medicine ; 31.6%, drug stores ; 18.6% clinics of Korean oriental medicine ; 6.8% folk medical techniques. Noticeable is the almost ten fold increase from the mere 0.9% in the utilization of Korean oriental medicine, whereas in the utilization of folk medicine, it is short of two-fold increase. 3) Folk medicine and its utilization Households that use folk medicine for relief and care of signs and symptoms commonly encountered in daily life, number 1969 households, which accounts for 76.9% of all the study households. This rather high level use of folk medicine is not different from rural to urban areas. The order of frequency of utilizing folk medicine among the study people are : the highest 14.3% for the relief of indigestion ; 8.6% for burns ; 5.1% for common cold ; 4.7% for hiccough ; and 4.2% for hordeolum. A present various procedures of folk medicine is being used to relieve all kinds of symptoms. 192 symptoms are identified at present. The most frequently used procedures of folk medicine appear to be based either on principles of the Korean oriental medicine or of scientific knowledge. Based on these survey findings, proposals for utilizing folk medicine are as follows First, this survey's findings will be feed back to both on the job training and on the spot guidance of community health practitioners, public health nurses and other peripheral work force in the health field, who are in daily contacts with community. This feed back will assure that the health personnel carry out their health education and information activities that are based on the utilization pattern of folk medicine as found in the survey result. Second, studies will be soon implemented that are designed to measure the efficiency and potency of these procedures and to improve these procedures of folk medicine were most frequently used by the community. Third, studies will continue to systematize medicinal plants and skills of Korean oriental medicine that are easily available at minimal cost in daily life for the prevention of diseases and management of emergency cases.

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2004년도 경기도 보건소 결핵환자로 부터 분리된 결핵균 DNA 지문분석 (Analysis of DNA fingerprints of Mycobacterium Tuberculosis Isolates from Patients Registered at Health Center in Gyeonggi Province in 2004)

  • 박영길;강희윤;임장근;하종식;조정옥;최향순;이계철;최영화;신승수;전기홍;배길한
    • Tuberculosis and Respiratory Diseases
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    • 제60권3호
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    • pp.290-296
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    • 2006
  • 배 경: 결핵균 DNA 지문분석은 전염경로를 파악하는데 있어 매우 유용하다. 본 연구는 결핵균 DNA 지문 조사를 통하여 우리나라에서 처음으로 일개 지역(도 단위)에서 분리된 결핵균에 대하여 역학적 상황을 파악하고자 하였다. 방 법 : 2004년 5월부터 12월 까지 경기도내 보건소에 등록되는 모든 결핵환자의 검체로부터 분리된 681개 결핵균주에 대해서 DNA 지문 검사를 실시하였다. Cluster로 나타난 환자들에 대해서는 전파경로의 파악에 도움을 얻기 위하여 설문지를 통한 역학조사를 실시하였다. 결 과 : 681균주 중에서 IS6110의 copy 수는 0개에서 21개로 다양하였고, 그 중 10개가 120균주(17.6%)로 가장 많이 분포하였다. K 균주는 33 균주(4.8%)이었고, K family에 속한 균주는 128주(18.8%)였다. 또한 681균주 중에서 180명(26.4%)의 환자들이 포함된 50 종류의 cluster를 발견하였고, 50 종류의 cluster 중에서 같은 가족 내 감염이 2건이었고, 180명 중 근접지역 감염이 43명(23.9%)이었다. 연령대별 cluster 비율은 남녀 모두 60대 이후와 20대에서 높게 나타났다. 결 론 : 본 연구를 통하여 최초로 일개 지역(도 단위)을 중심으로 한 cluster의 분포율, 근접지역의 cluster 비율, 연령대별 cluster 비율 등을 알 수 있었다. 향후 지속적이며 더 확대된 대상으로 철저한 역학조사와 더불어 수행한다면, 결핵전염관리 대책을 세우는데 매우 유용한 기초 자료를 얻을 수 있을 것으로 판단된다.

국내 코로나바이러스감염증-19 유행 제3-4기 소아청소년 환자의 임상적 특성: 단일기관 후향적 연구 (Clinical Characteristics of Pediatric Patients With the Coronavirus Disease 2019 During the Third and Fourth Waves of the Epidemic in Korea: A Single Center Retrospective Study)

  • 문가원 ;신동현;최수한
    • Pediatric Infection and Vaccine
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    • 제29권3호
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    • pp.131-140
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    • 2022
  • 목적: 코로나바이러스감염증-19 (coronavirus disease 2019, 코로나19) 대유행이 시작된 이후 새로운 변이 바이러스들이 지속적 출현으로 반복되는 코로나19 유행이 장기간 지속되고 있다. 본 연구는 국내 코로나19 유행 제3기와 제4기 중반까지 소아 청소년 환자의 임상적, 역학적 특성을 파악하고자 하였다. 방법: 코로나19 확진으로 입원한 18세 이하 환자의 의무기록을 후향적으로 분석하였다. 연구기간은 제3기 유행(2020년 11월 13일-2021년 7월 6일)과 제4기 유행(2021년 7월 7일-10월 31일)로 구분하였다. 결과: 총 93명이 분석에 포함되었다(제3기 33명, 제4기 60명). 제3기에 비해 제4기 환자군의 중간 연령이 유의하게 높았다(6.7세 vs. 2.8세, P=0.014). 가정 내 전파가 전체 환자의 60.2%에서 보고되었고 두 시기에서 유사하였다(69.7% vs. 55.0%, P=0.190). 전체 환자 중 87.1% (81명)가 유증상 확인자였다. 이중 12.3%는 호흡기 증상이 없었다. 후각/미각 소실은 제4기 유행 환자군에 더 많이 관찰되었다(10.7% vs. 34.0%, P=0.032). 대부분의 호흡기 감염은 상기도 감염(94.4%, 67/71)이었고 4명 환자에서 폐렴이 동반되었다. 두 유행기 동안 진단 시 바이러스 수치의 유의한 차이는 없었다. 결론: 단일기관 후향적 연구의 제한점이 있으나 국내 코로나19 유행 제3기와 제4기 중반 동안 소아청소년 환자는 대체로 경증이었고 두 시기에서 임상적 특성 차이가 관찰되었다.