165,402 research outputs found
Replication Data and Code for: Cross-Border Technology Investments in Recession
No full textThe data and programs replicate tables from "Cross-Border Technology Investments in Recession" by Juliana Yu Sun and Huanhuan Zheng. Please see the ReadMe file for additional details
WeChat and the Chinese diaspora
No full textChinese. diaspora. Introduction. Wanning Sun & Haiqing Yu DOI: 10.4324/ 9781003154754-1 Preamble 1 A few months prior to his departure from the White House, in early August 2020, President Trump, citing national security concerns, ..
Perspectives on Identity, Migration, and Displacement
No full textPerspectives on Identity, Migration, and Displacement -- edited by Steven Tötösy de Zepetnek, I-Chun Wang, and Hsiao-Yu Sun (Kaohsiung: National Sun Yat-sen University Press, 2010. ISBN 9789860235418 209 pages, bibliography, index) is a collection of articles about sociological and literary aspects of identity formation as a consequence of (im)migration. (Im)migration results in the problematics of assimilation and hybridity and in postcolonial scholarship, in particular, attention is paid to the concept of migration termed Creolization on the ground that cultural contact, cultural transmission, and cultural transformation result in the creation of new cultures. Copyright release by National Sun Yat-sen University to the authors 2013
Can negative interest rates really affect option pricing? Empirical evidence from an explicitly solvable stochastic volatility model
No full textRECCHIONI, Maria Cristina; SUN, Yu; TEDESCHI, Gabriele. Can negative interest rates really affect option pricing? Empirical evidence from an explicitly solvable stochastic volatility model. Working Papers from Economics Department, Universitat Jaume I, núm. 2016/23The profound financial crisis generated by the collapse of Lehman Brothers and
the European sovereign debt crisis in 2011 have caused negative values of
government bond yields both in the U.S.A. and in the EURO area. This paper
investigates whether the use of models which allow for negative interest rates can
improve option pricing and implied volatility forecasting. This is done with
special attention to foreign exchange and index options. To this end, we carried
out an empirical analysis on the prices of call and put options on the U.S. S&P
500 index and Eurodollar futures using a generalization of the Heston model in
the stochastic interest rate framework. Specifically, the dynamics of the option’s
underlying asset is described by two factors: a stochastic variance and a stochastic
interest rate. The volatility is not allowed to be negative but the interest rate is.
Explicit formulas for the transition probability density function and moments are
derived. These formulas are used to estimate the model parameters efficiently.
Three empirical analyses are illustrated. The first two show that the use of models
which allow for negative interest rates can efficiently reproduce implied volatility
and forecast option prices (i.e., S&P index and foreign exchange options). The last
studies how the U.S. three-month government bond yield affects the U.S. S&P
500 index
Pristidia ramosa Yu, Sun & Zhang 2012
No full textPristidia ramosa Yu, Sun & Zhang, 2012 Figs 9–17 Pristidia ramosa Yu, Sun & Zhang, 2012: 45, f. 1–16. (male holotype; 6 male and 2 female paratypes from China, Jiangxi Province, Mt. Jinggang) Clubiona expansa Huang & Chen, 2012: 55, f. 15A–G. (male holotype; 1 male and 1 female paratypes from China, Taiwan Province, New Taipei City). Syn. N. Material examined. CHINA: Taiwan, New Taipei City, District Pinglin (24o55’55.78"N, 121°42′41.10"E, 210m), 19 July 2013, F. Liu and W.Gan leg., 1 male (HUBU-TW- 130177) and 1 female (HUBU-TW- 130178); Guizhou, Mt. Fanjing, Taiping village (24o55’55.78"N, 121o42’41.10"E, 634m), 24 May 2015, M. Yan and J.Li leg., 1 female (HUBU-GZ- 150249). Diagnosis. Pristidia ramosa can be easily distinguished from P. cervicornuta sp. nov. by the embolus distinctly longer, the presence of basal teeth on the RTA, RTA expanded, with a blunt tip, and by the absence of TA (Figs 13, 14). Yu, Sun & Zhang (2012: 45) highlighted the differences of this species from P. prima. Description. See Yu, Sun & Zhang (2012). Intraspecific variation. There is almost no difference between the male from Taiwan (HUBU-TW- 130177, Figs 10, 12–14) and the holotype from Jiangxi (Yu, Sun & Zhang 2012: figs 1–7, 12–14). However, some intraspecific variation is exhibited by females from different localities, mostly related to different degrees of sclerotization. The female from Taiwan (HUBU-TW- 130178, Fig. 11) is distinctly larger in size and darker in color than the paratype from Jiangxi (Yu, Sun & Zhang, 2012: fig. 8). Furthermore, in HUBU-TW- 130178, the epigynal ventral plate is more sclerotized (Fig. 15) than in the paratype (Yu, Sun & Zhang 2012: fig. 9); both spermathecae and bursae are totally transparent in HUBU-TW- 130178 (Fig. 16), while more sclerotized in the paratype (Yu, Sun & Zhang 2012: figs 10, 16). Natural history. The spiders inhabit forests in low mountain areas (210–800 m). This is in accordance with data of the type locality provided by Yu, Sun & Zhang (2012) and Huang & Chen (2012). Distribution. Mt. Jinggang in Jiangxi, Mt. Fanjing in Guizhou and New Taipei City in Taiwan, China. The present data showed the extension of the known range of this species of about 560 km to the northwest (Mt. Fanjing) and of 750 km to the southeast (Taiwan) from the type locality (Fig. 17). Remark. Although we have not examined the type specimens of C. expansa, the long filiform embolus, the expanded RTV with a subapical flange, the bell-shaped atrium, and the course of vulvar duct system shown in the original illustrations (Huang & Chen 2012, fig. 15A–G), leave no doubts on this synonymy. Huang & Chen (2012) was published in May, 2012 (day of publication not specified), while Yu, Sun & Zhang (2012) was published in May, 3, 2012. According to the article 21.3 of the International Code of Zoological Nomenclature, the publication date of Huang & Chen (2012) must be specified as May, 31, 2012. Consequently, C. expansa is here considered as a junior synonym of P. ramosa.Published as part of Yu, Hao, Zhang, Jianshuang & Chen, Jian, 2017, Taxonomy of the genus Pristidia Deeleman-Reinhold, 2001 (Araneae: Clubionidae) in China, pp. 411-418 in Zootaxa 4306 (3) on pages 413-416, DOI: 10.11646/zootaxa.4306.3.7, http://zenodo.org/record/84452
FIGURES 20–21 in New Oligaphorura species (Collembola: Onychiuridae) from the forests of East Asia
No full textFIGURES 20–21. Oligaphorura kedroviensis sp. nov.: 20, dorsal chaetotaxy; 21, ventral chaetotaxy of abdomen. Scale 0.1 mm.Published as part of Sun, Xin, Shveenkova, Yu. B., Xie, Zhijing & Babenko, A. B., 2019, New Oligaphorura species (Collembola: Onychiuridae) from the forests of East Asia, pp. 256-270 in Zootaxa 4661 (2) on page 268, DOI: 10.11646/zootaxa.4661.2.2, http://zenodo.org/record/337944
Chao cai liao yong yu ya bo chang ju jiao: ge xiang yi xing hao sun cai liao yu ti du guang xue na mi bo dao guan
No full textKwok, Hui Kin = 超材料用於亞波長聚焦 : 各向異性耗損材料與梯度光學納米波導管 / 郭栩健.Thesis M.Phil. Chinese University of Hong Kong 2015.Includes bibliographical references (leaves 67-69).Abstracts also in Chinese.Title from PDF title page (viewed on 26, September, 2016).Kwok, Hui Kin = Chao cai liao yong yu ya bo chang ju jiao : ge xiang yi xing hao sun cai liao yu ti du guang xue na mi bo dao guan / Guo Xujian
Source code and demo of MAGUS (Machine Learning and Graph Theory Assisted Universal Structure Searcher) v2.0.0
No full textThis is the source code and demo for MAGUS (Machine Learning and Graph Theory Assisted Universal Structure Searcher) v2.0.0. Future updates can be accessed from gitlab (https://gitlab.com/bigd4/magus) after registration (https://www.wjx.top/vm/m5eWS0X.aspx).MAGUS is a Python package designed to predict crystal structures, which is free for non-commercial academic use, subject to registration and approval at https://www.wjx.top/vm/m5eWS0X.aspx .
1) This Code or its derivative work will not be used for any purpose other than non-commercial research.
2) This Code or its derivative code will not be published or otherwise distributed.
3) The use of this Code should be acknowledged by citing the tutorial paper describing the use of this code:
[1] Junjie Wang, Hao Gao, Yu Han, Chi Ding, Shuning Pan, Yong Wang, Qiuhan Jia, Hui-Tian Wang, Dingyu Xing, and Jian Sun, "MAGUS: machine learning and graph theory assisted universal structure searcher", National Science Review 10 (7), nwad128 (2023).
[2] Kang Xia, Hao Gao, Cong Liu, Jianan Yuan, Jian Sun, Hui-Tian Wang, Dingyu Xing, "A novel superhard tungsten nitride predicted by machine-learning accelerated crystal structure search", Sci. Bull. 63, 817 (2018).Additional references that may be cited (at the discretion of the user) are:
Graph theory:
[3] Hao Gao, Junjie Wang, Yu Han, Jian Sun, "Enhancing Crystal Structure Prediction by Decomposition and Evolution Schemes Based on Graph Theory", Fundamental Research 1, 466 (2021).
[4] Hao Gao, Junjie Wang, Zhaopeng Guo, Jian Sun, "Determining dimensionalities and multiplicities of crystal nets" npj Comput. Mater. 6, 143 (2020).
Surface reconstruction:
[5] Y. Han, J. Wang, C. Ding, H. Gao, S. Pan, Q. Jia, and J. Sun, "Prediction of surface reconstructions using MAGUS", The Journal of Chemical Physics 158 (17), 174109 (2023).
Structure searching in confined space:
[6] Chi Ding, Junjie Wang, Yu Han, Jianan Yuan, Hao Gao, and Jian Sun, "High Energy Density Polymeric Nitrogen Nanotubes inside Carbon Nanotubes", Chin. Phys. Lett. 39, 036101 (2022). (Express Letter)Peer reviewe
“CAN'T HELP MYSELF”: BODY, SOUL, MACHINE. The art by Sun Yuan and Peng Yu as a form of obsessive-compulsive disorder.
No full textreservedAnalisi dell'opera “Can't Help Myself”, realizzata nel 2016 dalla coppia di artisti cinesi Sun Yuan e Peng Yu. Partendo da una panoramica sulla carriera dei due artisti, con qualche riferimento allo sviluppo dell'arte contemporanea cinese, viene descritta la storia dietro la costruzione dell'opera insieme alle dichiarazioni della coppia. In seguito, un approfondimento sul contesto intorno all'opera vede un confronto tra le due mostre a cui è stata esposta (Tales Of Our Time a New York nel 2016 e la Biennale d'arte di Venezia del 2019). In conclusione, uno sguardo alla ricezione e alla critica, analizzando le molteplici interpretazioni sul significato, il fenomeno mediatico che ha fatto diventare quest'opera virale online e collegamenti con temi di attualità
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