• The Science & Technology
• /
• v.31 no.4 s.347
• /
• pp.84-87
• /
• 1998

해마다 3월만 되면 영국은 대규모 과학주간 행사로 전국이 떠들썩하다.5회째 개최되는 올해의 행사에는 3월13일부터 9일동안 전국서 5천여종의 행사가 차례로 펼쳐지며 1백50여만명의 국민이 참여했다. 명실상부한 범국민 과학대중화운동으로 공동사회의 모든 일원이 과학을 만나고 이해하는 좋은 기회가 되고 있다.

• The monthly packaging world
• /
• s.8
• /
• pp.42-46
• /
• 1993

올해 포장산업을 결산하기는 다소 이르지만 몇 가지 흐름을 짚어 보았다. 가장 두드러진 경향은 역시 환경대응의 노력인 것으로 보인다. 그밖에 고기능의 고부가가치 제품 생산, 물류혁신, 산업디자인 발전의 기반 조성, 여러 포장산업관련 단체의 출현 등도 눈에 띄인다. 기계기기, 종이 및 골판지(상자), 제관 및 유리산업과 관련해서는 다음에 언급할 기회가 있을 것으로 생각한다.

• Korean Journal of Environment and Ecology
• /
• v.28 no.1
• /
• pp.10-23
• /
• 2014

This study was carried out to examine seaweed community structure and distribution of crustose coralline algae at the intertidal and subtidal zones of Gallam, Samchuk, eastern coast of Korea. Total 112 species including 14 of green algae, 33 of brown algae, and 65 of red algae were collected and identified. Among these species, 29 species were found throughout the year. The dominant species which contributed significantly to the total biomass were Ulva pertusa, Colpomenia spp., Sargassum fulvellum, Sargassum fusiforme, Sargassum muticum, Sargassum thunbergii, Corallina pilulifera, and Gelidium elegans. Annual seaweed biomass in dry weight was 66.7 $gm^{-2}$ and maximum biomass was recorded seasonally in summer (107.5 $gm^{-2}$), while minimum was recorded in autumn (36.2 $gm^{-2}$). In seaweed functional group analyses, coarsely branched form was the most dominant functional group constituting from 40.0 to 48.6% of the total flora. Ecological state group ESG II, as an opportunistic species, including sheet form, filamentous form, and coarsely branched form, consisted of 46~61 species, constituting 76.7~82.4%. Crustose coralline algae was observed throughout all seasons. Species of the crustose coralline algae were largely classified into Lithothamnion lemoineae, Lithophyllum okamurai, Lithophyllum yessoense, and Hydrolithon gardineri. The coverage of crustose coralline algae seems to be lower than that of other studies from 36.8% to 11% on average.

• The Sea:JOURNAL OF THE KOREAN SOCIETY OF OCEANOGRAPHY
• /
• v.5 no.2
• /
• pp.169-176
• /
• 2000

This study was carried out to clarify the spatial and temporal patterns of macrobenthic assemblages on the subtidal area around Mokpo, southwest of Korea. A total of 238 species and 663 ind./$m^{2}$ were collected. Polychaetes were the most abundant faunal group that comprised 88 species and had a mean density of 389 ind./$m^{2}$. In the semi-enclosed Youngsan River estuarine bay and neighbouring Mokpo Port area were composed of fine sediments with high organic content, and revealed large seasonal variations in the salinity of surface water and bottom dissolved oxygen in contrast to little seasonal changes in those parameters in the outer area. The study area was classified into four station groups by the cluster analysis; the harbor area, the offshore area, and the inner and outer estuarine bay. Two estuarine bay areas showed different species composition; the dominant species of inner bay were Tharyx sp., Poecilochaetus johnsoni, Heteromastus filiformis and other opportunistic species whereas those in the outer bay were Ruditapes philippinarum, Corophium sinense. From the environmental data and species composition of benthic community, the inner bay was characterized to have unstable benthic faunal assemblages, especially under the seasonal disturbance and receiving large amount of organic matter input and intermittant discharge of fresh water. The coastal developments around Mokpo city also seem to have stressed the subtidal communities spatio-temporally.

• Korean Journal of Fisheries and Aquatic Sciences
• /
• v.35 no.1
• /
• pp.35-45
• /
• 2002

Seasonal quantitative van Veen grab sampling was conducted to characterize the composition and structure of the benthic polychaete community inhabiting the shellfish farming ground of a coastal bay system of Jiniu Bay (Korea). A total of 132 polychaete species were identified and the polychaetes accounted for about $80\%$ of overall abundance of benthic animals. There was little significant seasonal difference in densities (abundances) of polychaetes, Maximum biomass was obseued in summer (August) and minimum value was recorded in winter (February) and spring (May). Conversely, diversity and richness were lowest in summer, indicating a seasonal variability in the polychaetous community structure, The cluster analysis indicated that such a seasonal variability resulted mainly from the appearance of a few small, r-selected opportunists in spring and the tubiculous species of the family Maldanidae in summer. On the other hand, several indicator species for the organically enriched environments such as Capitelia capitata, Notoniashs Jatericeus and hmbrineris sp. showed high densities during all the study period. Density and biomass of univariate measures of community structure were significantly lower in the arkshell-farming ground of the southern area than in the non-farming sites of the bay, A similar general tendency was also found in the spatial distributions of species diversity and richness. Principal component analysis revealed the existence of different groups of benthic assemblages between the arkshell-farming ground and non-farming sites, The lack of colonization of r-selected opportunists and/or tubiculous species in the former ground seemed to contribute to the spatial differences in the composition and structure of the polychaetous communities. Although finer granulometric composition and high sulfide concentration in sediments of the arkshell-farming ground and low salinity in the northern area were likely to account for parts of the differences, other environmental variables observed were unlikely. The spatial distribution of polychaetes in Jiniu Bay may be rather closely related to the sedimentary disturbance by selection of shells for harvesting in spring.

• Korean journal of applied entomology
• /
• v.20 no.1 s.46
• /
• pp.43-50
• /
• 1981

In Korea, only one species of genus Promalactis has been reported to date. This study was carried out to revise Korean species of tile genus Promalactis. From the result of it, four species are reported for the first time. The species are Promalactis jezonica, P. suzukiella, P. enopisema, P. autoclina.

• The Bimonthly Magazine for Agrochemicals and Plant Protection
• /
• v.3 no.6
• /
• pp.34-44
• /
• 1982

1970년대 초부터 본격적으로 도입되기 시작하여 1974년 이래 급속한 사용증가를 기록한 우리나라의 벼농사용 제초제는 1980년을 최고로 95$\%$ 이상의 농가에 의해 매년 사용되고 있다. 1982년 5월 현재 정부에 의해 논잡초약으로 고시된 제초제의 종류는 14종 17게 품목이고 이들중 8종 10개 품목은 일년생 잡초약 그리고 6종 7개품목은 소위 다년생 잡초약으로 분류되고 있다. 그동안 벼의 소출에 직접 영향을 주는 살충제나 살균제의 중요성에 비추어 제초제는 상대적으로 그 중요성이 비교적 경시(輕視)되어 온 것이 사실이다. 그러나 1980년 이후 일반농가는 물론 정부의 제초제에 대한 관심이 두드러지게 높아져서 여러 가지 논의가 되고 다각도에서 심각한 검토가 이루어지고 있는 것이 현실이다. 이 기회에 필자가 평소에 생각해온 문제의 핵심과 그 대책을 기술함으로써 효과적인 잡초방제에 일조(一助)가 되기를 바란다.

• 보건세계
• /
• v.47 no.1 s.521
• /
• pp.12-15
• /
• 2000

HIV 감염자가 병원에 입원하며 의사가 가장 먼저 생각하는 일은 어떤 기회감염으로 이런 증상을 갖게 되었을까 하는 것이다. 생각할 수 있는 병도 많고 생각해야 할 병도 많지만 그 중에서도 가장 먼저 떠올리게 되는 것이 결핵이 아닌가 한다. 우선 빈도면에서 비교적 흔하고, 임상증상도 정상인과 같지 않은 점이 많아서 혼돈을 일으키는 경우가 많다. 림프종을 생각할 만큼 크고 빠르게 자란 목의 덩어리도 조직검사를 하면 결핵성 림프절염인 경우가 있고 복강내 림프절이 커지거나 뇌막염을 일으키기도 한다. 결핵약으로 치료를 하는 경우에도 해열되는데 기간이 많이 필요하고 치료 도중에 약화되는 경험을 하기도 하였다. 우리나라에서 발표된 보고에서도 서울대학교에서 발표한 173명의 환자들에서 가장 흔한 기회감염은 결핵이었다. 25$\%$의 환자에서 결핵이 발생하였으며, 환자 100명당 1년 동안의 결핵 발생률은 9.6이었다. 면역부전이 진행할수록 이 빈도는 증가한다고 보고한 바 있다. 따라서 HIV감염자를 관리, 치료하는 경우에는 결핵에 대한 충분한 이해가 필요한데 얼마전 New England Journal of Medicine에 HIV감염자에서의 결핵이라는 제목으로 발표된 자료가 있어 이를 정리하였다. 여러모로 도움이 되는 내용이지만 우리나라에서 사용할 수 있는 약제에 한계가 있고 BCG예방접종을 하기 때문에 피부반응 검사로 결핵발생을 예측하기도 어렵다는 점을 고려하면 모든 내용이 우리나라의 현실에 적용되는 것은 아니다.

• Journal of the Korean Society for Marine Environment & Energy
• /
• v.5 no.1
• /
• pp.68-75
• /
• 2002

This study were observed to the conditions of organic pollution applying to tile environmental assessments based on macrobenthos around the raft culture ground which became an issue by organic matter input in Jinhae Bay. Three stations, mussel farm, oyster farm and the control station on which rarely culture activities were fixed and have analyzed to the sediment characteristics and macrobenthic communities. Muddy substrates between 6.0 and 6.60 on mean grain size have prevailed to the bottom layer in all stations. The highest organic matter content of 2.8% was observed to the mussel farm while the lowest one of 1.5% was recorded on the control area. As a total, 79 species from seven phyla were identified. Comparing to shell farms, the control station have composed to more diversified community structure. In the mussel and the oyster farm, opportunistic species, living in high organic contents area, Lumbrineris longifolia, Heteromastus. filiformis in polychaetes and Corophium sinense in amphipod were dominated. As results on environmental assessment, in spite of changing to the species composition and densities seasonally, the mussel farm have recorded only to moderately polluted condition.

• Journal of Chest Surgery
• /
• v.39 no.1 s.258
• /
• pp.85-89
• /
• 2006

Good's syndrome (thymoma with immunodeficiency) is a rare cause of combined B and T cell immunodeficiency in adults. The clinical characteristics are increased susceptibility to bacterial infection and opportunistic viral and fungal infections. The most consistent immunological abnormalities are hypogammaglobulinemia and reduced or absent B cells. This syndrome should be treated by resecting the thymoma and replacing the immunoglobulin to maintain adequate IgG values. The author experienced one case of Good's Syndrome. The patient was a 64-year-old female who had a history of frequent sinopulmonary infection. Chest CT showed Pneumonia and anterior mediastinal mass and PCNB was taken and biopsy result was thymoma. She received thymectomy and replacement of immunoglobulin to control hypogammaglobulinemia.