• Title/Summary/Keyword: p67

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Expression of Ki67 and CD105 as Proliferation and Angiogenesis Markers in Salivary Gland Tumors

  • Tadbir, Azadeh Andisheh;Pardis, Soheil;Ashkavandi, Zohreh Jafari;Najvani, Ali Dehghani;Ashraf, Mohammad Javad;Taheri, Ali;Zadeh, Maryam Asad;Sardari, Yasaman
    • Asian Pacific Journal of Cancer Prevention
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    • v.13 no.10
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    • pp.5155-5159
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    • 2012
  • Objective: To investigate the association between CD105 and tumor cell proliferation in salivary gland tumors. Methods: In this study, 59 samples of salivary tumors from Khalili Hospital archive, including 20 cases of pleomorphic adenoma (PA), 20 cases of mucoepidermoid carcinoma (MEC) and 19 cases of adenoid cystic carcinoma, as well as 10 cases of normal salivary gland tissue, were reviewed by immunohistochemistry (IHC) for CD105 and Ki67 staining. Results: CD105 positive vessels were absent in normal salivary gland tissue in the vicinity of tumors (51.6% of all tumors were positive). There was a statistically significant difference in frequency of CD105 staining between PA and malignant tumors and between four groups of different lesions (p<0.000) being highest in MEC. Intratumoral microvessel density was also elevated in malignant neoplasms ($2.61{\pm}3.1$) as compared to PA ($0.46{\pm}0.6$). Normal salivary glands did not express Ki67. There was a statistically significant difference in frequency and percentage of Ki67 immunoreactivity in malignant neoplasms (86.5% and $10.7{\pm}10.8$ respectively) compared to PA (50% and $0.78{\pm}0.2$) and among the four groups values were highest in MEC (p<0.000). Conclusion: n this study, it was observed a higher rate of angiogenesis and cellular proliferation was noted in malignant tumors compared to benign tumors, but no correlation was observed between these two markers.

Lp error estimates and superconvergence for finite element approximations for nonlinear parabolic problems

  • LI, QIAN;DU, HONGWEI
    • Journal of the Korean Society for Industrial and Applied Mathematics
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    • v.4 no.1
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    • pp.67-77
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    • 2000
  • In this paper we consider finite element mathods for nonlinear parabolic problems defined in ${\Omega}{\subset}R^d$ ($d{\leq}4$). A new initial approximation is taken. Optimal order error estimates in $L_p$ for $2{\leq}p{\leq}{\infty}$ are established for arbitrary order finite element. One order superconvergence in $W^{1,p}$ for $2{\leq}q{\leq}{\infty}$ are demonstrated as well.

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급속모래여과에서 초기 유출수 수질의 향상

  • 김우항;전지훈
    • Proceedings of the Korean Environmental Sciences Society Conference
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    • 2004.11a
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    • pp.67-70
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    • 2004
  • 역세척 후 응집제를 여과사에 주입한 수 여과를 실시한 결과 초기에 높게 나타났던 탁도의 거의 제거되는 것을 알 수 있었으며 pH의 변화에 따른 초기의 탁도 변화는 pH5와 pH7에서 보다 낮은 탁도의 수질을 얻을 수 있었다. pH5부근에서 알루미늄의 존재형태가 $Al(OH)^{2+},\;Al(OH)_2^+$로 많이 존재하며, pH7에서는 $Al(OH)_3$으로 존재하여 모래 표현의 (-) 전하를 감소시킬 수 있는 결과로 판단되었다.

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The Larval Development of Petrolisthes japonicus (De Haan,1849) (Decapoda, Porcellanidae) in Laboratorv Culture (갯가게붙이(Petrolisthes japonicus)의 유생발생)

  • 이화자
    • The Korean Journal of Zoology
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    • v.36 no.1
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    • pp.67-76
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    • 1993
  • The lanral characters of Petrolisthes japonicus (De Haan, 1849), Porcellanidae, were described and illustrated. The lanral development of P. juponicus includes the two zoeal and one megalopal stases. The first and second zoeal stases lasted about 4 and 10 days, respectively. It took about 14 days to attain megalopa from hatching-The larval characteristics of P. japonicus were compared with those of other knouts species of Petrolisthes. Consequently, the lanrae of P. japonicus are more closely related to P elongatus and P ornutus than other Petrolisthes species, but the present species can be distinguished from these Petrolisthes species by morphological characteristics.

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증기발생기의 용수처리 개선

  • 한국원자력산업회의
    • Nuclear industry
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    • v.8 no.9 s.67
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    • pp.67-71
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    • 1988
  • 원자력발전소 증기발생기의 부식을 줄이기 위한 노력의 일환으로 2차계통 pH조절을 위해서 암모니아 대신 몰포린으로 대체하는 가압경수로가 늘고 있다.

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