Floristic characteristics of vascular plants and first distributional report of Pseudostellaria baekdusanensis M. Kim in Yongneup wetland protected area

Young-Chul Kim,Hyun-Hee Chae,Sang-Heock Oh,Seung-Ho Choi2,Moon-Pyo Hong3,Gi-Heum Nam,Jae-Yoon Choi,Hyun-Sook Choi,Kyu-Song Lee 한국환경생태학회 2015 한국환경생태학회지 Vol.29 No.2

Yongneup wetland protected area, the only high moor in Korea, is a core area to conserve biodiversity. Even though the Yongneup wetland protected area is relatively small, various plant species are distributed in the Yongneup wetland protected area because it includes various habitats showing different environmental gradients. Vascular plants distributed in the Yongneup wetland protected area were identified as a total of 376 taxa that is composed of 73 families, 217 genera, 322 species, 3 subspecies, 44 varieties and 7 forms. For endangered plants designated by the Ministry of Environment, 5 species including Trientalis europaea var. arctica, Lilium dauricum, Halenia corniculata, Lychnis wilfordii and Menyanthes trifoliata were found and 34 taxa were confirmed to be distributed only in the mountainous wetland habitats. Regarding naturalized plants, a total of 11 taxa were distributed, but most of them were distributed in the areas where artificial interference has occurred. And in areas inside the wetlands that are relatively well preserved, 2 species of Bidens frondosa and Erigeron annuus were observed. In this study, the occurrence and distribution of Pseudostellaria baekdusanensis M. Kim, which was recently found in Mt. Baekdu and reported as a new species, were identified in the Yongneup wetland protected area. A wetland is a very vulnerable area to drastic environmental changes and damages to its ecosystem could cause the extinction of rare plant species which are distributed only in the wetlands. Therefore, it is mandatory that current status of the Yongneup wetland protected area is evaluated and actions to prevent rapid environmental changes are taken. Fourteen separate investigations were conducted in 2013 and another four in 2014, to evaluate current status of the Yongneup wetland protected area. These investigations have provided us the basic information for future actions of conservation and restoration.

2007년 대한감염학회 권장 성인 예방접종 권장안

강진한,김홍빈,손장욱,이상오,정문현,정희진,최영화,최정현,최준용,최희정 대한감염학회 2008 감염과 화학요법 Vol.40 No.1

In 2007, the Korean Society of Infectious Diseases recommended an immunization schedule for adults residing in Korea. This recommendation includes four categories: standard immunization for healthy persons, supplementary immunization for persons with underlying illnesses, recommendations for health-care personnel and for international travelers. The Standard Immunization Schedule consists of universal vaccination (tetanus-diphtheria/tetanus-diphtheria-pertussis (Td/Tdap); hepatitis A vaccine for persons aged 20s; human papilloma virus vaccine for women under 26 years old; meningococcal vaccine for military recruits and college students in dormitories; influenza vaccination for persons aged 50 years or more and pregnant women; and pneumococcal vaccination for persons aged 65 years or more) and catch-up vaccination (hepatitis A vaccine for persons aged 30s; hepatitis B vaccine, varicella and MMR vaccines for persons who have uncertain specific immunities). The Supplementary Immunization Schedule recommends 4 vaccines, i.e., pneumococcal, influenza, meningococcal, and Haemophilus influenzae type b, appropriate to the underlying illnesses, and confirmation of the presence of antibodies to hepatitis A and hepatitis B. The Recommendation for Health-Care Personnel includes universal vaccination (influenza and pertussis) and catch-up vaccination (hepatitis B, measles-mumps-rubella and varicella for seronegative health-care personnel). The Recommended Immunization for International Travelers focuses reinforcement of vaccinations for healthy persons and includes certain immunizations necessary for international travel (yellow fever, meningococcal, plaque, tick-borne encephalitis, and cholera). These guidelines can be seen at www.ksid.or.kr.

敎育定策決定過程에 관한 分析的 硏究

崔熙善,文仁元,鄭馹煥 仁川敎育大學校 1988 論文集 Vol.22 No.1

새로운 매체현실과 문화변화

최문규,김회봉,조경식,서규환 한국독일어문학회 2000 독일어문학 Vol.11 No.-

Der Begriff "Medienrealita¨t" ist heute aktuell geworden. Obwohl die Medien zur Vemittlung der Kommunikation auch in der Vergangenheit sehr verallgemeinert worden sind, gelten sie heute nicht mehr als bloβes Mittel. Die Entwicklung der elektronischen bzw. technologischen Medien vera¨ndert sowohl die Realita¨t unserer Welt als auch das Sein schlechthin. Der Begriff "Medienrealitat" ist synonym mit den anderen Begriffen wie "digitaler Schein" bzw. "virtuelle Realita¨t". "Informationsgesellschaft", die den tradierten Gegensatz zwischen Sein und Schein. dem Wahren und dem Falschen auflo¨st und zu einer neuen "Form der Realita¨t" avanciert werden. Um die Medienrealita¨t zu analysieren. werden im zweiten Kapitel die verschiedenen Elemente illuminiert, durch die neue Medienrealita¨t und Kultur konstituiert werden: ganz neue "immaterielle Basis der Information. Macht der Bilder, Geschwindigkeit, neue computerielle Wahrnehmung. "Medienwerk". Diese Elemente beherrschen sowohl die Realita¨t als auch die Kultur. Abschlieβend wird die Mo¨glichkeit reflektiert. wie die Kunst (besonders die Literatur) die Medienrealita¨t u¨berwinden und ihre alternativen Wege ero¨ffnen kann. Im dritten Kapitel wird der Begriff "virtuelle Realita¨t" philosopisch uberpruft, wobei er die Gemeinsamkeiten mit den tradierten philosophischen Begriffen wie "dynamis, "potentia, "virtualite"~possibi1ite usw. teilt. Auch kann der Widerspruch der "virtuellen Realita¨t" besta¨tigt werden, die vor allem auf der radikalen Vera¨nderung von Technik. Information und Kapital basiert. Das heiβt: es ist ein Widerspruch oder die Verhu¨llung der ontologischen Implikation, daβ die virtuelle Realita¨t durch die allma¨hliche Negierung ihrer Virtualita¨t zur Realita¨t erhoben wird. Im vierten Kapitel wird das Verha¨ltnis der Gesellschaft zu Umwelt. Information und Medien aus der Sicht der Luhmannschen Systemtheorie betrachtet. Daraus ergibt sich. dass die Gesellschaft als Sozialsystem bei ihrer Selbstreproduktion mit der Leitdifferenz von System/Umwelt operiert und damit die elbstreproduktion der Gesellschaft von der Vera¨nderung ihrer Umwelt (Technik, Bewuβtsein, Organismus usw.) abha¨ngig ist. Dabei ist deutlich, dass Medien (Schrift. Buchdruck. Elektronik usw.). die zur Verbreitung der Informationen dienen, bei der Evolution der Gesellschaft eine entscheidende Rolle gespielt haben. Schlieβlich handelt es sich um die unterschiedlichen soziologischen Theorien u¨ber das Verhaltnis von Medien und Gesellschaft. In den Vordergrund treten dabei die Theorien von D. Bell und M. Poster. Bells Theorie der postindustriellen Gesellschaft behandelt die Entwicklung der Technologie. die heute die Kultur und die Gesellschaftsstruktur stark vera¨ndert. Gegen Bell postuliert Poster eine Wende von der Produktionsweise zur Informationsweise, indem er die erwandtschaft mit der postmodernen Theorie teilt. Seiner Perspektive zufolge gilt heute nicht das Kapital. sondern die Information als Hauptmovens der Gesellschaft. Die Medien ko¨nnen weder das Absolute noch die Utopie sein. Was der Euphorie der sog. "idealen Entwicklung der Medien" kritisch gegenu¨berstehen kann. ist nichts anderes als die kritische Reflexion der Kunst.

단백 methylase 억제제 5´-Isobutyl-5´-deoxyadenosine과 sinefungin에 의한 BALB/c mouse 비장세포의 증식과 분화의 억제

최의규,홍정희,한유정,백문기 大韓免疫學會 1995 大韓免疫學會誌 Vol.17 No.3

Whether or not protein methylation can be correlated with cell proliferation and differentiation in BALB/c mouse splenocyte cultures has been investigated by using methylase inhibitors, 5'-Isobutyl-5'- deoxyadenosine(SIBA) and sinefungin. 1) Protein methylase I and III activities were found to be elevated in LPS stimulated splenocytes, and the peak of protein methylase I was correlated with that of S phase fraction while changes in protein methylase III activity followed the changes in S phase fraction. 2) SIBA and sinefungin were proved to be potent competitive inhibitors of the protein methylase 'I and III in vitro with apparent Ki for sinefungin of both enzymes being lower than that for SIBA. 3) The protein methylase III were activated by 2-mercaptoethanol and dithiotreitol, and strongly inhibited by Cue+ in vitro; and the inhibition was almost completely released by dithiotreitol and diethyldithiocarbamate. 4) The extent of polyclonal antibody formation, S phase fraction and protein synthesis after induction by LPS were significantly inhibited in a dose response manner by SIBA and sinefungin with higher potency for the former. 5) Inhibition of cell cycle was also observed in the presence of cyloleucine, an inhibitor in SAM synthesis. 6) Of several enzymes investigated, namely protein methylase III, LDH, yglutamyltranspeptidase, and adenosine deaminase, the- protein methylase III was most markedly increased by LPS and decreased by SIBA and sinefungin than other enzymes. From the above results, it is suggested that SIBA and sinefungin suppress the cell proliferation and differentiation through the inhibition of protein methylation.

Fecal sterol을 이용한 울산만과 주변해역 퇴적물내 하수기인 유기물 평가

최민규,최희구,김상수,문효방 한국환경과학회 2005 한국환경과학회지 Vol.14 No.1

Surface sediments (0~4 cm) were sampled at 40 stations from Ulsan Bay and its adjacent areas of Korea, to evaluate the contamination by sewage-derived organic matters using fecal sterols. Some sterols were quantified by gas chromatography coupled to mass spectrometry (GC/MS). Total concentrations of eight sterols (coprostanol, cholesterol. cholestanol, epicholestanol, epicoprostanol, (3-sitosterol, brassicasterol, and stigmasterol) in the sediments from Ulsan Bay and its vicinity varied from 929 to 23.444 ng/g dry weight. The most predominant sterols were cholesterol and coprostanol, accounting for 33~72% of total sterols. The concentration of coprostanol known as the indicator of human feces ranged from 141 to 8,257 ng/g dry weight. In particular, the coprostanol concentrations in the sediments from Jansaengpo Harbor and Taehwa River exceeded the value of 1,000 ng/g dry weight. suggesting that these areas could be considered as the hot-spot zones by municipal sewage contamination. Some molecular indices and multivariate data analysis were used to assess the origin of these sterols in the sediments. Results showed that the major routes of sewage contamination in Ulsan Bay and its vicinity were the input through Jansaengpo Harbor and Taehwa River.

Sr·페라이트 플라스틱자석의 제조에 관한 연구

문현욱,최희태,서강수,신용진 明知大學校 産業技術硏究所 1995 産業技術硏究所論文集 Vol.14 No.-

In this paper, we mention he fabrication of Sr ferrite plastic magnet. In order to compose Sr ferrite, first, a little CaO, SiO₂, Na₂SiO₃, and Al₂O₃ are added to SrO5.9Fe₂O₃. Then, the composition is calcinated at 1225℃ under N₂ enviroment for 1 hourwith addition of PVA 5wt% solution. The carbon coating method increase grinding effect on powder fabrication. To fabricate anisotropic Sr ferrite plastic magnet, 80-89wt% of Sr ferrite and polyamide6 are kneaded and then 0-12kOe of magnetic field is applied. On magnet fabrication, an optimal condition of injection mold is obtained under the injection temperature 270℃, the injection pressure 120㎏/㎠, the magnetic field 8kOe and magnetic field applied time 8sec. As the result of experiments, we obtain (BH)max = 2.09MGOe property on anisotropic plastic magnet which is fabricated by using injection mold method in magnetic field.

백서의 원위부 피편에 동맥유입의 중요성에 관한 실험적 연구

최규남,최희윤,강희문,김한중 大韓成形外科學會 1983 Archives of Plastic Surgery Vol.10 No.2

Microsurgery and myocutaneous flap have been developed recently for wide employment in plastic and reconstructive surgery. Therefore, the delay procedure has been declined in its use recently, because it has many difficult problems. If the flap is longer and larger, it should be delayed for complete survival, but delay requires considerable time. Therefore, as a substitute for delay, vascular anastomosis in the distal part of a flap will theoretically give the same effect. In this study, we investigated the importance of arterial inflow in the distal side of a flap in rats. The experiment was done in 3 different groups according to the design of flaps and in each group 3 subgroups were made. In A flap, the superficial epigastric artery was preserved or anastomosis. In V flap. the superficial epigastric vein was preserved or anastomosis. In C flap, as a control flap, both artery and vein were severed. In result, A flaps in all 3 groups were completely survived. Both V and C flaps in all 3 groups were showed distal necrosis. But C flaps were showed more necrosis than V flaps. In conclusion, we suggest the possibility that a large flap may be transposed in one stage with vascular anastomosis in the distal part-preferably artery and vein, or artery only.

환경친화성 계면활성제를 이용한 어병균의 살균효과

최상원,정관용,오남희,김은영,방정환,김정우,여문환 한국환경과학회 2000 한국환경과학회지 Vol.9 No.5

The antibacterial effect amino acid-copper(Ⅱ) surfactant on fish pathogens was studied. Fish pathogens of Edwardsiella tarda, Vibrio anguillarum, Aeromonas hydrophila and Streptococcus sp. were selected, cultured in nutrient agar and adjusted at 2 × 10 exp (5)∼10 exp (6) CFU/㎖ in phosphate buffer saline before the addtion of amino acid-copper(Ⅱ) surfactant with different concentrations. All tested pathogens died within 1 hour with 1 ppm of amino acid-copper(Ⅱ) surfactant. In comparison with formalin and ET, amino acid-copper(Ⅱ) surfactnat was more effective in antibacterial capacity.

4극 이방성 Sr페라이트·플라스틱자석의 제조에 관한 연구

최희태,문현욱,신용진,진성빈 明知大學校 産業技術硏究所 1995 産業技術硏究所論文集 Vol.14 No.-

This thesis deals with the fabrication of 4 poles anisotropic Sr ferrite plastic magnets. After Polyamide6 and polyamide12 are kneaded respectively with Sr ferrite powder, silane coupling and calcium stearate of lwt% are added for coating and pelleting. The pelleted specimen injection-moulded under magnetic field using 4 poles mould. In the case of using polyamide6 as a binder, for 4 poles anisotropic Sr ferrite plastic magnets the surface magnetic flux density distribution is +943.8∼-943.8kG and the deviation is 5.2%, polyamide12, the distribution is +1040.9∼-1040.9KG and the deviation is 5.4%.The magnet distribution shows stability. As the results of experiments, we find 4 poles anistropic Sr ferrite plastic magnets have properties as the materials appropriate for manufacturing magnet type synchronous motors.