K0(K0ˉ)K^0(\bar{K^0}) Production in Two-Photon Processes at TRISTAN

We have carried out an inclusive measurement of $K^0(\bar{K^0})$ production in two-photon processes at TRISTAN. The mean $\sqrt{s}$ was 58 GeV and the integrated luminosity was 199 pb$^{-1}$. High-statistics $K_s$ samples were obtained under such conditions as no-, anti-electron, and remnant-jet tags. The remnant-jet tag, in particular, allowed us, for the first time, to measure the cross sections separately for the resolved-photon and direct processes.Comment: 20 pages, Latex format, 4 figures and KEK-mark included. Table 1 revised. To be published in Phys. Lett.

Measurement of the forward-backward asymmetries for charm- and bottom-quark pair productions at <s><\sqrt{s}>=58GeV with electron tagging

We have measured, with electron tagging, the forward-backward asymmetries of charm- and bottom-quark pair productions at $$=58.01GeV, based on 23,783 hadronic events selected from a data sample of 197pb$^{-1}$ taken with the TOPAZ detector at TRISTAN. The measured forward-backward asymmetries are $A_{FB}^c = -0.49 \pm 0.20(stat.) \pm 0.08 (sys.)$ and $A_{FB}^b = -0.64 \pm 0.35(stat.) \pm 0.13 (sys.)$, which are consistent with the standard model predictions.Comment: 19 pages, Latex format (article), 5 figures included. to be published in Phys. Lett.

A Measurement of the D∗±D^{*\pm} Cross Section in Two-Photon Processes

We have measured the inclusive $D^{*\pm}$ production cross section in a two-photon collision at the TRISTAN $e^+e^-$ collider. The mean $\sqrt{s}$ of the collider was 57.16 GeV and the integrated luminosity was 150 $pb^{-1}$. The differential cross section ($d\sigma(D^{*\pm})/dP_T$) was obtained in the $P_T$ range between 1.6 and 6.6 GeV and compared with theoretical predictions, such as those involving direct and resolved photon processes.Comment: 8 pages, Latex format (article), figures corrected, published in Phys. Rev. D 50 (1994) 187

Measurement of the cross-section and forward-backward charge asymmetry for the b and c-quark in e+e- annihilation with inclusive muons at sqrt(s) = 58 GeV

We have studied inclusive muon events using all the data collected by the TOPAZ detector at sqrt(s)=58 GeV with an integrated luminosity of 273pb-1. From 1328 inclusive muon events, we measured the ratio R_qq of the cross section for qq-bar production to the total hadronic cross section and forward-backward asymmetry A^q_FB for b and c quarks. The obtained results are R_bb = 0.13+-0.02(stat)+-0.01(syst), R_cc = 0.36+-0.05(stat)+-0.05(syst), A^b_FB = -0.20+-0.16(stat)+-0.01(syst) and A^c_FB = -0.17+-0.14(stat)+-0.02(syst), in fair agreement with a prediction of the standard model.Comment: To be published in EPJ C. 24 pages, 12 figure

Measurement of inclusive electron cross section in γγ\gamma \gamma collisions at TRISTAN

We have studied open charm production in $\gamma \gamma$ collisions with the TOPAZ detector at the TRISTAN $e^{+}e^{-}$ collider. In this study, charm quarks were identified by electrons (and positrons) from semi-leptonic decays of charmed hadrons. The data corresponded to an integrated luminosity of 95.3 pb$^{-1}$ at a center-of-mass energy of 58 GeV. The results are presented as the cross sections of inclusive electron production in $\gamma \gamma$ collisions with an anti-tag condition, as well as the subprocess cross sections, which correspond to resolved-photon processes. The latter were measured by using a sub-sample with remnant jets. A comparison with various theoretical predictions based on direct and resolved-photon processes showed that our data prefer that with relatively large gluon contents in a photon at small $x (x \le 0.1)$, with the next-to-leading order correction, and with a charm-quark mass of 1.3 GeV.Comment: 26 pages, Latex format (article), 5 figures included, to be published in Phys. Lett.

Systemic treatments in MDM2 positive intimal sarcoma: A multicentre experience with anthracycline, gemcitabine, and pazopanib within the World Sarcoma Network

Peer Reviewedhttps://deepblue.lib.umich.edu/bitstream/2027.42/152621/1/cncr32508_am.pdfhttps://deepblue.lib.umich.edu/bitstream/2027.42/152621/2/cncr32508.pd

Low HER2 expression is a predictor of poor prognosis in stage I triple-negative breast cancer

IntroductionTriple-negative breast cancer (TNBC) is negative for hormone receptors and human epidermal growth factor receptor 2 (HER2). In stage I TNBC, adjuvant therapy or follow-up are performed according to risk factors, but clinical trial data is scarce. In recent years, it has been reported that HER2-low cases (1+/2+ and in situ hybridization negative) have different prognoses than HER2-0 cases. However, the risk of recurrence and risk factors in this HER2-low population for stage I TNBC have not yet been investigated.MethodsHerein, out of 174 patients with TNBC who underwent surgery from June 2004 to December 2009 at the National Cancer Center Hospital (Tokyo), we retrospectively examined 42 cases diagnosed as T1N0M0 TNBC after excluding those treated with preoperative chemotherapy.ResultsAll patients were female, the median age was 60.5 years, and 11 cases were HER2-low and 31 cases were HER2-0. The median follow-up period was 121 months. Postoperative adjuvant therapy was administered in 30 patients and recurrence occurred in 8 patients. HER2-low cases showed a significantly shorter disease-free survival (HR: 7.0; 95% CI: 1.2– 40.2; P=0.0016) and a trend towards shorter overall survival (hazard ratio [HR]: 4.2, 95% confidence interval [CI]: 0.58–31.4) compared with that of HER2-0 cases. HER2 was also identified as a factor for poor prognosis from the point- estimated values in univariate and multivariate analyses after confirming that there was no correlation between the other factors.ConclusionFor patients with stage I TNBC, the HER2-low population had a significantly worse prognosis than the HER2-0 population

Observation of Highly Virtual Photon-Photon Collisions to Hadrons at TRISTAN

We have observed highly virtual ($Q^2>1.05 GeV^2$) photon-photon collisions to hadronic final states at $\sqrt{s_{e^+e^-}}=58 GeV$. The integrated luminosity of the data sample was 241pb$^{-1}$. Both scattered beam-electrons and scattered beam-positrons were detected using low-angle calorimeters (i.e., both photons were highly virtual, "double-tag"); we obtained 115 hadronic events with an estimated background of $10.2\pm1.1$. The cross section obtained was $4.11\pm0.66$pb in the $2<W_{\gamma \gamma}<25$ GeV and $Q^2_{\gamma, min}>2$ GeV region, while the lowest order quark-parton model predicted 3.00pb.Comment: 14 pages, latex (revtex), 2 figures, available at http://topsun1.kek.jp/~enomoto/dtag.p

「学科間プロジェクト」のカリキュラム開発に関する実践的研究/「有馬温泉ゆけむり大学」を事例として

本研究では、「有馬温泉ゆけむり大学」を実践的なデザイン教育の場として研究を行った。すなわち、「学科間プロジェクト」の教育的効果を再考するために、本イベントの「Tシャツ」、「チラシ」デザイン、及び有志学生による「神戸芸工大雑貨屋さん」、「浴衣DEファッションショー」を開催した。その他イベントとして、「有馬温泉クリスマスツリープロジェクト」のワークショップ、「有馬節分会」の「チラシ」デザインを行った。また、武蔵野美術大学・群馬県立女子大学・立命館アジア太平洋大学に出向き、聞き取り調査を行った。研究の結果、「有馬温泉ゆけむり大学」に参加した学生は、他の学科及び学年を超えた交流の機会ができた。また、特に大阪音楽大学・近畿大学・武庫川女子大学の学生たち及び有馬温泉のスタッフとも交流ができたことは、大変貴重な経験となり、様々な教育効果が期待できる。したがって、「学科間プロジェクト」のカリキュラム開発のための基礎資料を得ることができた。In this studies, we studied that the "Arima Onsen Yukemuri University" was for design practical education. That is, in order to rethink the educational effect of "Interdepartmental Project", of this event "T-shirt", "Flyer" design, and by volunteer students "Kobe Design University Zakkaya san", "Yukata DE Fashion show" were held. As other events, workshop of "Arima Onsen Christmas tree project" , "Flyer" design for "Arima Setsubun E".In addition, visited to Musashino Art University, Gunma Prefectural Women\u27s University, Ritsumeikan Asia Pacific University, which were investigated.Results of the studies, students who participated in the "Arima Onsen Yukemuri University" was able opportunity of exchange beyond the school year and other departments. In addition, it becomes a very valuable experience, that the staff of Arima Onsen and students of Osaka College of Music, Kinki University, Mukogawa Women\u27s University also could exchange in particular can be expected to be teaching a variety of effects. Therefore, it was possible to obtain the basic data for curriculum development "Interdepartmental Project"