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Quasiconformal extensions of starlike harmonic mappings in the unit disc
Hidetaka Hamada,손광호,Tatsuhiro Honda 대한수학회 2013 대한수학회보 Vol.50 No.4
Let f be a harmonic mapping on the unit disc Δ in C. We give some condition for f to be a quasiconformal homeomorphism on Δ and to have a quasiconformal extension to the whole plane C. We also obtain quasiconformal extension results for starlike harmonic mappings of order α∈2 (0, 1).
QUASICONFORMAL EXTENSIONS OF STARLIKE HARMONIC MAPPINGS IN THE UNIT DISC
Hamada, Hidetaka,Honda, Tatsuhiro,Shon, Kwang Ho Korean Mathematical Society 2013 대한수학회보 Vol.50 No.4
Let $f$ be a harmonic mapping on the unit disc ${\Delta}$ in $\mathbb{C}$. We give some condition for $f$ to be a quasiconformal homeomorphism on ${\Delta}$ and to have a quasiconformal extension to the whole plane $\bar{\mathbb{C}}$. We also obtain quasiconformal extension results for starlike harmonic mappings of order ${\alpha}{\in}(0,1)$.
Inorganic Microballon Production from Shinju - Gan Using an Entrained Bed Reactor
Yoshimitsu Uemura,Sumio Nezu,Hidetaka Honda,Yoshihiro Ohzuno,Ijichi , Kazuya,Hatate, Yasuo 한국화학공학회 1999 Korean Journal of Chemical Engineering Vol.16 No.6
Hollow inorganic microparticles were produced continuously from a volcanic glass (shinju-gan or perlite) using an entrained bed reactor. The microparticles are called expanded perlite. The raw material was a sieved fraction (104㎛ in volume average diameter) of crushed perlite, which is from China. The effects of temperature and residence time on expanded perlite yield were investigated.
( Junko Tsuboki ),( Kiyomi Takaishi ),( Fumiko Ito ),( Ritsuo Honda ),( Hironori Tashiro ),( Hidetaka Katabuchi ) 대한산부인과학회 2016 대한산부인과학회 학술대회 Vol.102 No.-
Objective: In epithelial ovarian cancer (EOC), M2-polarized macrophage (Mø), a component of the cancer microenvironment in ascitic fluid as well as primary tumor, is thought to play an important role in cell- proliferation via paracrine activation of the STAT3 pathway. Onionin A (ONA), a natural compound purified from onions, biologically inhibits M2 polarization, and molecularly inactivates STAT3 signaling of Mø and tumor cells. Here we elucidated the indirect and direct anti-cancer effects of ONA via the STAT3 pathway. Methods: The indirect effects of ONA on EOC cells were analyzed under the co-culture system with human monocyte- derived Mø using BrdU ELISA assay. The direct effects of ONA alone and combinations with anti-cancer drugs (PTX, CBDCA, or CDDP) on proliferation and STAT3 activation of the human EOC cell lines (SKOV3, RMG1, or ES2) were evaluated using WST assay and western blot analysis. Results: M2Mø in the co-culture system enhanced proliferation of EOC cells, whereas ONA significantly reduced the enhancement of the cell-proliferation by inhibition of M2-polarization. In addition, ONA directly inhibited STAT3-activation and proliferation of EOC cells (P value < 0.01-0.05). Moreover, the suppressive effects against EOC cell proliferation were significantly increased by the combination of ONA with anti-cancer drugs (P value < 0.01-0.05). Conclusions: ONA exhibited direct anti-cancer effects in EOC as well as indirect effects by suppression of M2-polarization in co-culture system. It was suggested that the combination of ONA and anti-cancer drugs presents a new therapeutic strategy for treatment of EOC.