Evidence for the decays of Λc+→Σ+η\Lambda^+_{c}\to\Sigma^+\eta and Σ+η′\Sigma^+\eta^\prime

We study the hadronic decays of $\Lambda_{c}^{+}$ to the final states $\Sigma^{+}\eta$ and $\Sigma^+\eta^\prime$, using an $e^{+}e^{-}$ annihilation data sample of 567 pb$^{-1}$ taken at a center-of-mass energy of 4.6 GeV with the BESIII detector at the BEPCII collider. We find evidence for the decays $\Lambda_{c}^{+}\rightarrow\Sigma^{+}\eta$ and $\Sigma^+\eta^\prime$ with statistical significance of $2.5\sigma$ and $3.2\sigma$, respectively. Normalizing to the reference decays $\Lambda_c^+\to\Sigma^+\pi^0$ and $\Sigma^+\omega$, we obtain the ratios of the branching fractions $\frac{{\mathcal B}(\Lambda_c^+\to\Sigma^+\eta)}{{\mathcal B}(\Lambda_c^+\to\Sigma^+\pi^0)}$ and $\frac{{\mathcal B}(\Lambda_c^+\to\Sigma^+\eta^\prime)}{{\mathcal B}(\Lambda_c^+\to\Sigma^+\omega)}$ to be $0.35 \pm 0.16 \pm 0.03$ and $0.86 \pm 0.34 \pm 0.07$, respectively. The upper limits at the 90\% confidence level are set to be $\frac{{\mathcal B}(\Lambda_c^+\to\Sigma^+\eta)}{{\mathcal B}(\Lambda_c^+\to\Sigma^+\pi^0)}<0.58$ and $\frac{{\mathcal B}(\Lambda_c^+\to\Sigma^+\eta^\prime)}{{\mathcal B}(\Lambda_c^+\to\Sigma^+\omega)}<1.2$. Using BESIII measurements of the branching fractions of the reference decays, we determine $\mathcal B({\Lambda_{c}^{+}\rightarrow\Sigma^{+}\eta})=(0.41\pm0.19\pm0.05)\%$ ($<0.68\%$) and $\mathcal B({\Lambda_{c}^{+}\rightarrow\Sigma^{+}\eta'})=(1.34\pm0.53\pm0.21)\%$ ($<1.9\%$). Here, the first uncertainties are statistical and the second systematic. The obtained branching fraction of $\Lambda_c^+\to\Sigma^+\eta$ is consistent with the previous measurement, and the branching fraction of $\Lambda_{c}^{+}\rightarrow\Sigma^{+}\eta^{\prime}$ is measured for the first time.Comment: Accepted by Chin. Phys. C : Chin. Phys. C 43, 083002, (2019

科技史新书目·2013年中国大陆(1)

本专栏专门刊登国内外新近出版的科学技术史书目信息,以飨读者。欢迎出版社或编著者提供新书信息及惠赠样书,以便存目;欢迎海内外学界同仁撰写书评书介。本刊特约国内收藏科技史文献最丰富的专业图书馆——中国科学院自然科学史研究所图书馆提供中国大陆地区出版书目信息

Directory of English/Chinese Names of Scholars in Chinese Studies - 海外中国研究学者名录（英中对照）

The Directory of English/Chinese Names of Scholars in Chinese Studies was a by-product of the "Chinese Studies in North America - Research and Resources" project. It provides both the English and the Chinese names of scholars involved in Chinese Studies mainly in North America. The Chinese names for western scholars resulted from an extensive in the relevant literature and on the internet at appropriate sites to find and authenticate the Chinese names used by these scholars. Where we could not find the Chinese name adopted by a scholar, we have transliterated their name into Chinese characters using the standard reference book 英语姓名译名手册. It is hoped that this directory will be useful for people needing to search for the Chinese names used by western scholars, or for the standard transliterations of their names into Chinese characters. Corrections of inaccurate information and addition of new names of Chinese Studies scholars worldwide are welcome. For corrections, comments and updates, please send emails to Haihui Zhang (Librarian for Chinese studies at East Asian Library, University Library System at University of Pittsburgh) at [email protected]

疏肝法对肝郁型多囊卵巢综合征疗效系统性分析

目的:运用Meta分析总结中医疏肝法对肝郁型多囊卵巢综合征(Polycysticovarysyndrome,PCOS)治疗的临床效果。方法:检索中文中国知网、维普、万方以及英文Pubmed、CochraneLibrary等数据库自建刊以来至今相关的文献,用Revman5.3软件进行分析。结果:共检索文献2030篇,最终纳入RCT文献14篇,共计1057例患者,其中治疗组529例、对照组528例。结果:与对照组西药相比,疏肝法治疗组在临床总有效率、排卵率、周期排卵率及妊娠率等方面差异具有统计学意义,且无明显偏倚。结论:运用疏肝法对肝郁型多囊卵巢综合征治疗后临床总有效率以及排卵率、周期排卵率、妊娠率均有显著提高,且效果优于西药对照组,说明运用中医辨证治疗PCOS患者尤其要重视肝郁症,对临床治疗多囊卵巢综合征具有指导意义。国家自然科学基金面上项目(No:81673661

応力誘起変態制御によるインバー合金の開発と工業材料への展開

平成17年度-平成18年度科学研究費補助金(基盤研究(S))研究成果報告書,課題番号:1758009

Domesticate：new things and the Chinese-Style Poerty

This paper first is set to illustrate the cultural significance of western new things represented especially by the Expo since the 19th century, which epitomizes its cultural and ideological framework. Second, compared with the Chinese traditional system of objects and its frame of thinking, shows the differences between western countries and China. Finally, to explain the role played by Japan in the naturalization progress from western things to Chinese traditional poetry, as an intermediary agent in the negotiation between Chineseand western cultures.東アジアの言語と表