• 제목/요약/키워드: 전남대학교

검색결과 2,704건 처리시간 0.026초

젊은 여성의 경계성 엽상종양에서 생긴 침윤성 유관암: 증례 보고 (Invasive Ductal Carcinoma Originating from a Borderline Phyllodes Tumor in a Young Female: A Case Report)

  • 박혜미;임효순;기소연;이효재;이지신;박민호
    • 대한영상의학회지
    • /
    • 제82권4호
    • /
    • pp.971-976
    • /
    • 2021
  • 유방 엽상종양은 전체 유방 종양의 1% 미만을 차지하는 드문 섬유상피종양이다. 엽상종양은 유관주위 버팀질 세포에서 기원하여 상피 성분과 버팀질 성분을 모두 포함하는 특징을 가지며, 조직학적으로 양성, 경계성, 악성으로 구분된다. 엽상종양의 상피 성분에서 암이 발생하는 것은 매우 드물기 때문에 이에 대한 영상의학적 소견은 명확히 정립된 바가 없다. 이에 저자들은 21세 젊은 여성에서 경계성 엽상종양 내에서 생긴 침윤성 유관암을 경험하였기에 자기공명영상을 포함한 영상의학적 소견과 조직병리학적 소견을 보고하고자 한다.

국내에 수입되는 어류의 코드 부여를 위한 목록 재정립 (Reestablishment of the List for Code Assignment for Fish Imported into Korea)

  • 한경호;강충배;김진구;이성훈;문찬웅;차상훈;이진;우진주;한승조;최원준;김희진;유태식
    • 한국수산과학회지
    • /
    • 제55권3호
    • /
    • pp.353-373
    • /
    • 2022
  • Many fish species are imported into Korea from various countries. However, in the case of some fish species, there are many that do not have Korean names. Species similar in morphology to domestically produced aquatic products are often disguised as being domestically produced and distributed. Therefore, this study presents a species list for 1,032 fish imported into Korea. Fish species that have not been given Korean names have been given a Korean name using a scientific method to prevent confusion during seafood distribution. Standards for naming stingrays, skates, and mackerel, which are often confused when a country name is being assigned are presented.

Synthesis and Characterization of Schiff Base-Cu(II) Complexes Derived from 2-Hydroxy-1-Naphthaldehyde and Aliphatic Diamines

  • 정병구;임채령;채희남;조기형;남계춘;최용국
    • Bulletin of the Korean Chemical Society
    • /
    • 제17권8호
    • /
    • pp.688-693
    • /
    • 1996
  • Tetradentate Schiff base ligands derived from 2-hydroxy-1-naphthaldehyde and aliphatic diamine have been synthesized. Cu(Ⅱ) complexes of Schiff base ligands have been synthesized from the free ligands and copper acetate. The mole ratio of ligand to copper was identified to be 1:1 by the result of elemental analysis and Cu(Ⅱ) complexes were in a four-coordinated configuration. The electrochemical redox process of Cu(Ⅱ) complexes in a DMF solution has been investigated by cyclic voltammetry, chronoamperometry, differential pulse voltammetry, and controlled potential coulometry. The redox process of Cu(Ⅱ) complexes is one electron transfer process in quasi-reversible and diffusion-controlled reaction. The electrochemical redox potentials and the kinetic parameters of Cu(Ⅱ) complexes are affected by the chelate ring of Schiff base ligands.

Photopolymerization of Methyl Methacrylate with Primarty Aryl- and Alkylsilanes

  • 우희권;홍란영;양수연;박선희;송선정;함희석
    • Bulletin of the Korean Chemical Society
    • /
    • 제16권11호
    • /
    • pp.1056-1059
    • /
    • 1995
  • The bulk photopolymerization of methyl methacrylate (MMA) with primary arylsilane (e.g., phenylsilane) and various primary alkylsilanes (e.g., benzylsilane, 3-phenoxyphenyl-1-silabutane, 3-naphthyl-1-silabutane, and 3-chlorophenyl-1-silabutane) was performed to produce poly(MMA)s containing the corresponding silyl moiety as an end group. It was found for the phenylsilane that while the polymerization yields increased and then decreased with a turning point at the molar ratio of MMA:silane=10:1 as the relative silane concentration increases, the polymer molecular weights decreased, and the TGA residue yields and the relative intensities of SiH IR stretching bands increased with increment of molar ratio of silane over MMA. The photopolymerization yield of MMA with the arylsilane was found to be higher than those with the alkylsilanes and without the silanes. Thus, the silanes seemed to significantly influence on the photopolymerization as both chain initiation and chain transfer agents.