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Family without Borders? Asian Women in Migration and the Transformation of Family Life
OISHI, Nana 이화여자대학교 아시아여성학센터 2008 Asian Journal of Women's Studies(AJWS) Vol.14 No.4
This paper will examine the impact of international female migration on families in Asia. Growing migration of women has been transforming family life in their countries of origin. Drawn from research in North America and Asia, this article will reveal how legal, geographical, and psychological “borders” have been emerging between migrant women and their families, and transforming their lives. It will also note why the struggles of migrant women and their families will not end, even after they acquire permanent resident status or citizenship in the destination countries. By arguing that even popular policies such as family reunification schemes will not be a panacea for many transnational families, this research will highlight some of the efforts that both sending and receiving states could make to alleviate the plight of these families.
Deep Brain Photoreceptors and Photoperiodism in Vertebrates
Oishi, Tadashi,Haida, Yuka,Okano, Keiko,Yoshikawa, Tomoko,Kawano, Emi,Nagai, Kiyoko,Fukada, Yoshitaka,Tsutsui, Kazuyoshi,Tamotsu, Satoshi Korean Society of Photoscience 2002 Journal of Photosciences Vol.9 No.2
Photoperiodism is an important adaptive phenomenon in various physiological parameters including reproduction to cope with seasonal changes. Involvement of extraretinal photoreceptors in the photoperiodism in non-mammalian vertebrates has been well established. In addition, circadian clock system is known to be involved in the photoperiodic time measurement. The pathway consists of light-input system, time measurement system (circadian clock), gonadotropin releasing hormone (GnRH) production in the hypothalamus, luteinizing hormone (LH) and follicle stimulating hormone (FSH) production in the pituitary, and final gonadal development. Recently, several laboratories reported photopigments newly cloned in the pineal, eyes and deep brain in addition to already known visual pigments in the retina. These are pinopsin, parapinopsin, VA-opsin, melanopsin, etc. All these photopigments belong to the opsin family having retinal as the chromophore. However, the function of these photopigments remains unknown. I reviewed the studies on the location of the photopigments by immunocytochemistry. I also discussed the results on the action spectra for induction of gonadal development in relation with the location of the photoreceptors. Various physiologically active substances distribute in the vertebrate brain. Such substances are GnRH, GnIH, neuropeptide Y, vasoactive intestinal peptide, c-Fos, galanin, neurosteroids, etc. I summarized the immunhistochemical studies on the distribution and the photoperiodic changes of these substances and discussed the route from the deep brain photoreceptor to GnRH cells.
Oishi, Naoki,Kumar, Mia R.,Roessler, Stephanie,Ji, Junfang,Forgues, Marshonna,Budhu, Anuradha,Zhao, Xuelian,Andersen, Jesper B.,Ye, Qing‐,Hai,Jia, Hu‐,Liang,Qin, Lun‐,Xiu,Yamashita, Wiley Subscription Services, Inc., A Wiley Company 2012 Hepatology Vol.56 No.5
<P><B>Abstract</B></P><P>Intrahepatic cholangiocellular carcinoma (ICC) is the second most common type of primary liver cancer. However, its tumor heterogeneity and molecular characteristics are largely unknown. In this study, we conducted transcriptomic profiling of 23 ICC and combined hepatocellular cholangiocarcinoma tumor specimens from Asian patients using Affymetrix messenger RNA (mRNA) and NanoString microRNA microarrays to search for unique gene signatures linked to tumor subtypes and patient prognosis. We validated the signatures in an additional 68 ICC cases derived from Caucasian patients. We found that both mRNA and microRNA expression profiles could independently classify Asian ICC cases into two main subgroups, one of which shared gene expression signatures with previously identified hepatocellular carcinoma (HCC) with stem cell gene expression traits. ICC‐specific gene signatures could predict survival in Asian HCC cases and independently in Caucasian ICC cases. Integrative analyses of the ICC‐specific mRNA and microRNA expression profiles revealed that a common signaling pathway linking miR‐200c signaling to epithelial‐mesenchymal transition (EMT) was preferentially activated in ICC with stem cell gene expression traits. Inactivation of miR‐200c resulted in an induction of EMT, whereas activation of miR‐200c led to a reduction of EMT including a reduced cell migration and invasion in ICC cells. We also found that miR‐200c and neural cell adhesion molecule 1 (NCAM1) expression were negatively correlated and their expression levels were predictive of survival in ICC samples. NCAM1, a known hepatic stem/progenitor cell marker, was experimentally demonstrated to be a direct target of miR‐200c. Conclusion: Our results indicate that ICC and HCC share common stem‐like molecular characteristics and poor prognosis. We suggest that the specific components of EMT may be exploited as critical biomarkers and clinically relevant therapeutic targets for an aggressive form of stem cell‐like ICC. (H<SMALL>EPATOLOGY</SMALL> 2012;56:1792–1803)</P>
Stability Analysis of Aperiodic Sampled-Data Control Systems
Yasuaki Oishi,Hisaya Fujioka 제어로봇시스템학회 2009 제어로봇시스템학회 국제학술대회 논문집 Vol.2009 No.8
Stability analysis of an aperiodic sampled-data control system is discussed for application to network and embedded control. The stability condition is described in alinear matrix in equality to be satisfied for all possible sampling intervals. Although this condition is numerically intractable, atractable sufficient condition can be constructed with the mean value theorem. Specialc are is paid on tightness of the sufficient condition for less conservative stability analysis. Aregion-dividing technique for reduction of conservatism and generalization to stabilization are also discussed. Examples show the efficacy of the approach.
Tetsutarou Oishi,Shigeru Morita,Chunfeng Dong,Motoshi Goto,Erhui Wang,Xianli Huang 한국물리학회 2014 THE JOURNAL OF THE KOREAN PHYSICAL SOCIETY Vol.64 No.6
Space-resolved vacuum ultraviolet (VUV) spectroscopy using a 3-m normal incidence spectrometeris utilized to measure the impurity emission profile in the edge and divertor plasmas of theLarge Helical Device (LHD). It measures the vertical profile of VUV lines emitted in the wavelengthrange of 300 − 3200 °A. CII, CIII, CIV, and CV lines emitted from carbon ions are successfully measured,and their ion temperatures are derived from the Doppler broadening. Vertical profiles ofthe emission intensity and the ion temperature are measured simultaneously for the CIV line. Theemission intensity profile, which has several peak structures, is reasonably explained by consideringthe relation between the C3+ ion distribution and the geometry used for the observations.