• The Journal of the Korean bone and joint tumor society
• /
• v.20 no.2
• /
• pp.109-112
• /
• 2014

We experienced a case of 63 years old male patient who had synchronous rectus abdominis intramuscular schwannoma and chest wall lipoma. Schwannoma is rare benign tumor which derived from nerve sheath and mainly peripheral nerve of flexor part. The authors report rare synchronous schwannoma and lipoma development.

• Korean Journal of Agricultural Science
• /
• v.9 no.1
• /
• pp.223-230
• /
• 1982

To obtain the information on the germination and initial growth of the sesame, the seed of 6 sesame cultivars obtained from upper and lower position of plants were seeded and the results on the germination and initial growth were summarized as follows; 1. When the seeding time was delayed, the days to flower of all sesame cultivars were significantly decreased. And the shortening rate of days to flower by delaying seeding time showed significant differences among the sesame cultivars. 2. At all cultivars excluding IS 103, the germination percentage of the seeds obtained from lower position of sesame plant was significantly higher than those from upper position. 3. Germination percentage of IS 103 seeds from lower position of sesame plant was 20.0% at petri dish experiment and 75.0% at pot experiment and those from upper position of the stem was 17.0% at petri dish experiment and 72.5% at pot experiment, respectively. 4. The germination speed of all cultivars showed a same tendency as germination percentage, but the germination speed of cultivars at pot experiment was higher than those at petri dish experiment. 5. The sesame seedlings from lower position seed were increased in stem length, root length, leaf length and fresh weight than those from upper position seed. The germination percentage and the initial growth showed significant differences by the seed weight in same cultivar, however did not show any varietal differences.

• 건강소식
• /
• v.38 no.12
• /
• pp.8-11
• /
• 2014

'침묵의 장기'라 불리는 간은 특별한 증상을 보이지 않다가 질병이 많이 진행되었을 때 비로소 이상 신호를 보낸다. 꾸준한 관심과 생활 속 건강관리만이 건강한 간을 지킬 수 있는 지름길이다.

• The Safety technology
• /
• no.182
• /
• pp.8-12
• /
• 2013

다사다난했던 2012년. 지난해에는 유난히 사회적인 이슈가 된 사고가 많았던 한 해로 평가된다. 이로 인해 최근 2년간 이어졌던 재해감소세가 다시금 증가추세로 접어들 수 있다는 우려의 목소리도 나오고 있는 상황이다. 그렇다면 지난해 산업안전보건 분야에서 화두가 됐던 사고들은 어떤 것이 있을까.

• Journal of Korean Society of Forest Science
• /
• v.34 no.1
• /
• pp.21-30
• /
• 1977

Japanese larch (Larix leptolepis) is one of main timber species in Korea that could find much plantation and growing stands on all over the country. It is thought to be in meaningful that a guiding diagram for density control of Japanese larch stands is made to estimate easily the density conditions in the quantitaive, ecological and economic viewpoint. Sample plots for this study are selected from the stands that have not been thinned in recent years, and mean height, mean diameter, dominant height, tree numbers per hectare and stem volume of mean tree are calculated from the each sample plots among total 165 plots In this study, especially, the theory of slenderness of mean tree are applied, that have been identified through the results of the spacing trial. Relative growth characteristics of this species are calculated from the general logistic curve and its formula is $Y=ax^b$. Relatwion between the measured items are found out as follows: 1. Relation between the mean height and tree numbers per hectare by slender class is showing the high correlation as table 1 and fig. 2, and between mean diameter and tree numbers per hectare is also high correlation as table 1 and fig 3. 2. The stem volume can be correctly estimated from height in case that slender class may be known, as showing in table 3 and fig. 4. 3. The stem volume can be more correctly estimated from the relation with $D^2H$ as formula, $Log_e\;V=0.9569\;Log_eD^2H-9.8431$, and relation between stem volume of single tree or volume per hectare and tree numbers per hectare are as following formulas: $Log_e$ stem volume=9.5026-1.6800 $Log_e$ tree numbers per hectare $Log_e$ stem volume per hectare=9.4911-0.6784 $Log_e$ tree numbers per hectare. Stem volume of mean tree, tree numbers per hectare and stem volume per hectare correspond to the mean tree height are calculated to slender class as table 5, 6, 7. Through the above steps, the diagram for density control of Japanese larch are produced as fig. 9. It is thought that this diagram could be applied to control the density of Japanese larch stands.

• Journal of the Korean BIBLIA Society for library and Information Science
• /
• v.28 no.1
• /
• pp.209-228
• /
• 2017

Previous studies have noted mothers' roles as active health information seekers, health managers, and caregivers for their family members. However, little is known about health information needs and seeking behaviors among Korean mothers of young children living in the United States. Using paper-based surveys, this study found that vaccination, child dental health, parenting, nutrition and diets, and physical exercise were ranked as the five most important health topics by the Korean mothers of young children aged 0 to 10 years old in this sample. Furthermore, this study revealed that mothers of boys evaluated the importance of two topics significantly higher than those of girls: circumcision (t=3.16, p < .01) and breastfeeding (t=2.47, p < .05). Also, age of child was an important factor influencing mothers' information needs in three health topics: child dental health (F=5.292, p < .01), physical exercise (F=7.107, p < .01), and child skin care (F=5.640, p < .01). Implications for developing health information services are also discussed.

• Digital Contents
• /
• no.5 s.132
• /
• pp.96-99
• /
• 2004

2분기 DB산업 기업경기가 완만한 회복세를 보일 것으로 전망됐다. 한국데이터베이스진흥센터(KDPC)가 최근 발표한 2분기 DB산 업 기업경기(BSI) 조사결과에 따르면 DB BSI 실적은 지난해 3분기를 최저점으로 확연히 상승세(2003년 3분기 39 → 2003년 4 분기 46 → 2004년 1분기 80)로 돌아섰으며, 2분기 전망 또한 1분기에 이어 평년수준(100)를 넘어설(119) 것으로 전망했다.

• Journal of Korea Fair Competition Federation
• /
• no.105
• /
• pp.2-24
• /
• 2004

미국 독점금지법상 수직적 거래가격 또는 비가격제한만큼 확립된 원칙에 대한 여러 번의 재검토가 행해지고 법원 판례와 학설간에 견해가 불일치 하는 분야도 없다. 다른 분야의 관행들과 마찬가지로 수직적 제한에 대해서도 그 위법성 판단에 있어서 당연위법, 합리성의 원칙 분석 또는 당연적법성 등의 세 가지 가능한 법원칙에 의하여 규율될 수 있는데, 한 두 가지 원칙의 적용여부가 문제되는 다른 대부분의 관행들과 다리 수직적 제한 분야에서는 이 세 가지 원칙 모두에 대하여 각각 채택을 주장하는 견해가 나왔다.

• Communications of Mathematical Education
• /
• v.13 no.2
• /
• pp.693-700
• /
• 2002

대학수학(미분적분학의 이해, 생활과 수학)수업에서, 공간좌표 단원과 도형편을 지도할 때, 구체적인 모델을 들고 또, 구체적인 예- 쌍곡기하에서는, i)삼각형의 세 내각의 크기의 합은 180도 보다 작다 ii) 피타고라스 정리가 성립하지 않는다. iii) 세 내각의 크기가 90도이고 한 내각의 크기가 90도 보다 작은 사각형이 존재한다. 는 예를 들어 유클리드 기하와 쌍곡기하에 대해 비교 설명하며 수업에 흥미를 불러 일으키고, 새로운 세계에 대한 생각을 할 수 있는 기회를 제공한다.

• The Science & Technology
• /
• v.31 no.5 s.348
• /
• pp.65-67
• /
• 1998

노화는 질병이 아니라 모든 생물이 본래 갖고 있는 하나의 과정이라고 산다. 노화연구는 우리를 자멸의 길로 끌어가는 「내부시게」론과 유전적인 실수와 공격으로 마침내 몸을 수리할 수 없을 정도가지 파괴한다는 주장 등 두개의 그룹으로 나눈다. 노화는 유전자 ,호르몬 ,분자 ,면역 조직반응 ,환경의 공격 그리고 일상적인 잘못을 포함하여 수십가지의 얼키고 설킨 과정이다. 이러한 노화를 막고 사람의 수명을 연장할 수는 없는가 실제로 인류는 지난 한세기동안 깨끗한 물과 백신과 같은 개량된 공중보건 덕택에 평균수명이 47세에서 79세로 2배나 늘어났다.