• Childhood Kidney Diseases
• /
• v.3 no.2
• /
• pp.161-169
• /
• 1999

Purpose : The urinary mass screening program for the detection of proteinuria in school aged population has been performed in Seoul since 1981. Systematic evaluation in corporation with the Seoul School Health Center for students with proteinuria identified in the mass screening has been performed from 1987. The results of urinary mass screening up to 1994 was reported. I report here the results of urinary mass screening from 1995 to 1997 and compare them with previous results and attempt to reveal the significance of urinary mass screening. Objects and Methods : In the 3-year period between 1995 and 1997, annually about 460,000 students comprising 3 different age groups; 5th grade of elementary school, 2nd grade of middle school and 2nd grade of high school were chosen, corresponding to the approximate ages of 11, 14, and 17 years, respectively. These subjects accounted for 26% of total school aged children in Seoul. The screening program was carried out in 3 steps. The 1st test was performed with dipstick at school and the 2nd at the Seoul School Health Center. Those students who showed proteinuria in the 1st and 2nd tests were referred to the hospital. Laboratory examinations including renal biopsies were performed to those students with pathologic proteinuria to clarify the incipient renal diseases. Results : 1) The prevalence of asymptomatic proteinuria was 0.28% in the 1st test. It peaked at the group of 14 years old as 0.34%, compared with 0.26% at the group of 11 years old and 0.24% at the group of 17 years old. It reached to 0.26% in male and 0.30% in female. 2) 25 percent of those having proteinuria at the first test were positive at the second test. 3) The proportion of patients with proteinuria by 3rd test were as follows; 25% of transient proteinuria, 55% of orthostatic proteinuria, 6% of constant proteinuria, 12% of proteinuria with hematuria, and 2% of transient proteinuria with isolated hematuria. Pathologic proteinuria were totaled as 20%. The prevalence of renal diseases among the age group of 7-18 years old was estimated to be 1.4 per 10,000. 4) Renal biopsy performed on 38 children with proteinuria at the third test revealed IgA nephropathy in 17(44%), focal segmental glomerusclerosis in 5(13%), minimal change disease in 4(11%), membranoproliferative glomeronephritis in 3(8%), $Henoch-Sch\"{o}nlein$ purpura nephritis in 3(8%), and others in 6(16%). Therefore, the prevalence of IgA nephropathy among the age group of 7-18 years old was estimated to be 0.64 per 10,000. 5) The prevalence of chronic renal failure was estimated to be 5.7 per 1 million of 7 to 18 years age group. Conclusions : 1) The prevalence of proteinuria in the first screening test was 0.28% and finally only 5% of them showed the pathologic proteinuria at the third test. 2) The prevalence of IgA nephropathy and chronic renal failure were 0.63 per 10,000 and 5.7 per 1 million, respectively among school-aged children in Seoul.

• Cement
• /
• s.197
• /
• pp.13-18
• /
• 2013

대한건설협회가 시멘트 레미콘 철강재 골재 등 주요 건설자재의 2013년도 수급전망을 발표하였다. 2013년도 건설경기는 정부의 SOC 예산 증가 등으로 토목수주가 다소 증가하겠으나, 지방의 주택수주 및 비주거용 건축수주의 감소가 예상된다. 이에 건설수주는 전체적으로 부진할 것으로 보여 건설자재 수요도 안정세를 유지할 것으로 전망된다. 이에 따라 레미콘 수요량은 1억 979만$m^3$으로 전년도에 비해 4.9%하락하고, 시멘트 수요량도 4,430만톤으로 지난해에 비해 0.5%로 소폭 상승에 그치는 등 전반적으로 안정세를 나타낼 것으로 전망된다.

• Proceedings of the KSMRM Conference
• /
• 2003.10a
• /
• pp.60-63
• /
• 2003

확산 텐서 영상은 기존의 x, y, z 세 방향으로 가해지는 화산 경사자장 외에 추가 자장을 걸어준 뒤 계산을 통하여 얻어지는데 기존의 세 방향 경사 자장을 이용한 확산 강조 영상만으로는 스핀의 방향성을 표현하는데 한계가 있고 이를 극복하기 위해 도입된 개념이다 (1-3). 최근 그 임상적 응용이 증가되고 있으며 그 분야는 허혈성 뇌질환에서부터 퇴행성 질환 및 선천성 이상에 이르기까지 광범위하게 적용되고 있으나 그 임상적 의미는 아직 불분명하며 활발한 연구가 이루어지고 있는 단계이다.

• Vending industry
• /
• v.3 no.2 s.10
• /
• pp.80-81
• /
• 2004

소프트아이스크림기 내수시장은 그간 해외제품이 $80\%$ 이상을 점유했다. 타품목보다 국산제품을 통한 수입 대체효과가 지극히 느렸던 이유는 바로 제품 품질문제에 있었다. 소프트아이스크림기가 워낙 고성능, 고품질이어야 하다 보니 국내 제품이 해외제품의 기술력을 따라가기 힘들었던 게 그간의 현실이었다. 특히 미국 TAYLOR사의 제품은 이 시장에 절대강자의 위치를 점하고 있어 난공불락의 아성을 공고히 했다. 그런데 최근 TAYLOR 제품에 견줄만한 고품질의 국산 제품이 등장했다. 냉동기기 전문업체 세아이엔씨는 TAYLOR 제품을 타킷으로 해 심혈을 기울여 개발한 ICES 소프트아이스크림기를 선보였다. 뛰어난 성능과 경쟁력 있는 가격으로 TAYLOR의 아성에 일대 도전장을 던진 ICES 소프트아이스크림기를 집중취재했다.

• Journal of Korean Ophthalmic Optics Society
• /
• v.3 no.1
• /
• pp.87-92
• /
• 1998

Unaided visual acuity was tested by ACP-7 TOPCON chart projector on 376 kindergarteners and objective refraction error was measured by NIDEK ARK-700A auto-refractokeratometer on 554 eyes aged 3 to 5. The results were as follows ; The average unaided visual acuity of children aged 3 was 0.82, aged 4 was 0.90 and aged 5 was 0.92 respectively theerfore children s visual acuity has been gradually developed with their age. The kind of refractive error was 1% for hyperopia, 14% for hyperopic astigmatism, 3% for myopia, 50% for myopic astigmatism, 18% for mixed astigmatism and 14% for emmetropia respectively.

• Journal of dental hygiene science
• /
• v.14 no.3
• /
• pp.371-378
• /
• 2014

This study aims to evaluate the influence of vitamin and mineral supplement intake, and degree of calcium and phosphorus intake on occurrence of dental caries in primary teeth. Research data was derived from the Fourth Korean National Health and Nutrition Examination Survey (KNHANES) and 1,139 Korean children of 3 to 6 years were selected as subject for this study. The dft index, nutrition factor including vitamin or mineral supplement intake and degree of intake for calcium (Ca) and phosphorus (P) were identified. Chi-square test was performed to assess the difference in socioeconomic status, oral health behavior and nutrition factor, including vitamin or mineral supplement intake and degree of intake for Ca and P. Linear regression analysis was performed to identify the relationship between the dft index and the related variables. As a result, the dft index was increased with the age. Significant differences in Ca intake was examined according to the sex, and P intake was different according to the sex in 3-year-old group. Among the 4-year-old children, the vitamin and mineral supplement takers had 1.206 less dft index than the non-takers. In conclusion, intake of Ca, P and vitamin/mineral supplement was not a pivotal factor to influence the incidence of primary teeth caries. However, significantly low dft index was observed from 4-year-old group who intake vitamin or mineral.

• Journal of the korean academy of Pediatric Dentistry
• /
• v.48 no.2
• /
• pp.151-159
• /
• 2021

Since January 2019, insurance coverage for caries treatment of permanent teeth using composite resin in children aged 12 and under has started in South Korea. The purpose of this study was to compare the pattern of permanent molar composite resin restoration aged 12 and under before and after the insurance coverage from January 2009 to March 2020 in the Department of Pediatric Dentistry at Kyung Hee University Dental Hospital at Gangdong. Since the insurance coverage was started in 2019, the frequency of permanent molar composite resin restoration aged 12 and under has increased more than twice. There was a significant change in frequency of resin restoration by shape of cavity comparing before and after the insurance coverage, whereas there was no significant difference in changes by patient age, gender and position of tooth. As accessibility to the permanent tooth composite resin restoration is increased by the insurance coverage, which shows a fair survival rate, it is expected that it could be able to secure oral health in the early permanent dentition aged 12 and under.

• Korean journal of aerospace and environmental medicine
• /
• v.29 no.3
• /
• pp.96-100
• /
• 2019

The present study analyzed all of exotic malaria (EM) cases reported in the Republic of Korea (Korea) and Japan from 2015 to 2017 to assess the trends of incidence overtime to review the risk factors for travelers visiting malaria-endemic countries. We investigated 162 cases of EM in Korea with a cumulative incidence rate (CIR) of 0.105 per 100,000 populations nationwide and the CIR of the oversea travelers was 0.238 per 100,000 travelers, respectively. During the same period in Japan, 152 cases of EM in nationwide with a CIR of 0.041 and in the oversea travelers with a CIR of 0.297 were observed. When compared, the CIR of EM in nationwide was much higher than that in Japan (P<0.01), but a CIR of imported by travelers in Korea was lower than that in Japan (P<0.01).

• The Journal of the Convergence on Culture Technology
• /
• v.10 no.2
• /
• pp.133-139
• /
• 2024

The purpose of this study was to investigate the effects of robot play linked to environmental picture books on the Environmentally Friendly attitudes of 5-year-old children. For this purpose, 24 5-year-old children from Seoul Y Kindergarten and 20 5-year-old children from E Kindergarten were selected as comparison subjects. In order to examine the differences between the groups, the experimental group performed 'Robot Play Linked to Environmental Picture Books' and the comparative group performed 'Free Play After Appreciating Environmental Picture Books'. The collected data were analyzed through independent sample t-test, which compares the average between the two groups using SPSS 29.0 statistical program. As a result of the study, there was a significant difference in all sub-areas of children's environment-friendly attitude(nature-friendly attitude, environmental preservation attitude), and these findings are meaningful as a basis for the direction of new environmental education of play-centered early childhood environmental education based on the value of new play media support called robot.

• Journal of Korean Orthopaedic Sports Medicine
• /
• v.1 no.2
• /
• pp.115-117
• /
• 2002

목적: 척추에통증을유발하는주된원인인근육질(Muscle Quality)의저하를향상시키는데있어서비교적안정적인방법(약물혹은수술이아닌요법)을시행하여치료중조직손상과부작용을최소화하면서신속한치료가이루어지는치료방법을찾는데주안점을두었다. 대상및방법: 임상실험기간은6주이었으며대상은평균연령34세(17 $\~$ 42세), 남녀30명,발병된지1년이상지난만성요통환자로서, 치료방법은근육마사지요법과운동요법을선택하였다.1군은근육마사지요법만을시행하였고, 2군은운동요법만을시행하였으며, 3군은근육마사지요법과운동요법을동시에병행하였다. 결과: 유연성측정결과와InBody 3.0에서의체성분결과를토대로분석한결과근육마사지요법만을시행한1군은즉각적인호전현상은보였으나시간경과후6일안으로다시이전의증상이원상복귀되어증상이개선되었다고보기는어려워보였다.한편운동요법만을시행한2군은연령에따른개인차는있었고6주안에만족할만한개선결과를보이지는않았지만증상개선이서서히이루어지고있었다. 그러나근육마사지요법과운동요법을병행한3군은1군과2군의실험결과와2단계이상의통증지수향상이관찰되었다. 결론: 요통의주된원인이되는근육질(Muscle Quality)의향상은근육질에긍정적인영향을주는모든요법중어느한가지를사용하는것보다는보다다각적인치료방법을개발하여적용시킬필요성이있다고사료된다.