73,364 research outputs found
Essays on applied econometrics
Full text linkThis dissertation consists of three independent essays on applied econometrics. The first chapter extends the model averaging estimator (Hansen, 2007) to the time series scenario. To this end, I propose a Mallows model averaging autocorrelation corrected (MAC) estimator, in which the tapered estimator (McMurry and Politis, 2010) is employed as the working covariance matrix. The optimality of the proposed criterion for MAC is proved under mild regularity conditions. Furthermore, the estimator works for a general family of covariance matrix estimators. Monte Carlo simulations demonstrate the effectiveness of MAC in comparison with the existing counterparts. A significantly improved paper based on this chapter (Cheng, Ing, Yu, 2015) has been accepted for publication, where model averaging weights residing in a discrete set are extended to continuous ones. Additionally, the published paper proposes the use of a modified Cholesky decomposition method, instead of the tapered estimator, for the inverse autocovariance matrix.
The second chapter examines the causality between the odds of winning an election and vote-buying. In Taiwan in 2010, eight cities and counties accounting for 60% of the entire population were merged and upgraded to five special municipalities. Along with the merger event, the number of district seats was changed, exogenously shifting the winning chances of candidates in the 2010 municipal elections. This policy intervention allows us to investigate whether a candidate is incentivized to buy votes when winning odds deteriorate. For every additional seat cut in a district, the difference-in-differences estimate suggests that approximately 4% additional incumbents seeking reelection decided to buy votes.
The third chapter estimates determinants of adolescent romantic matching using a maximum score estimator. Sorting patterns are suggested from the results. Findings are consistent with the literature, but more detailed results are revealed. In line with the literature, I find evidence of positive assortative matching along physical traits and grade. In addition, race is suggested to be the most important determinant of match value in the context of teen romantic relationships. Finally, adolescent matching seems pleasure-driven, in that past sexual experience plays an active role.Submission published under a 24 month embargo labeled 'Closed Access', the embargo will last until 2017-08-01The student, Tzu-Chang Cheng, accepted the attached license on 2015-07-13 at 14:16.The student, Tzu-Chang Cheng, submitted this Dissertation for approval on 2015-07-13 at 14:17.This Dissertation was approved for publication on 2015-07-16 at 14:40.DSpace SAF Submission Ingestion Package generated from Vireo submission #8429 on 2015-09-29 at 15:06:08Made available in DSpace on 2015-09-29T21:03:16Z (GMT). No. of bitstreams: 2
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Previous issue date: 2015-07-16Embargo set by: Seth Robbins for item 89562
Lift date: 2017-09-29T21:03:28Z
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Parholaspulus ventricosus Yin, Cheng & Chang 1964
No full text152. Parholaspulus ventricosus Yin, Cheng & Chang, 1964 Parholaspulus ventricosus Yin, Cheng & Chang, 1964: 321. Type locality and habitat: China, Kirin Province, Hui-Nan, on rodent, Myospalax psilurus. Type depository: Not stated.Published as part of Quintero-Gutiérrez, Edwin Javier & Halliday, Bruce, 2021, Review of the mite family Parholaspididae Evans, 1956 (Acari: Mesostigmata), pp. 401-459 in Zootaxa 5005 (4) on page 436, DOI: 10.11646/zootaxa.5005.4.1, http://zenodo.org/record/514192
Novel Dialogue 3.1: On Being Unmoored: Chang-rae Lee Charts Fiction with Anne Anlin Cheng (SW)
No full textSeason three of Novel Dialogue launches in partnership with Public Books and introduces some fresh new voices into the mix. John and Aarthi welcome Chris Holmes, Emily Hyde, Tara Menon, and Sarah Wasserman into the ND pod as guest hosts. And have they brought a series of scintillating conversations with them! In our series premiere, Sarah sits down with acclaimed novelist Chang-rae Lee and Anne Anlin Cheng, renowned scholar of American literature and visual culture at Princeton. The conversation goes small and goes big: from the shortest short story to the totalizing effects of capitalism. Chang-rae is no stranger to such shifting scales: his novels sweep through large stretches of time and space, but their attention to detail and meticulous prose makes for an intimate reading experience. Chang-rae's latest novel, My Year Abroad, fuels a discussion about how we can form meaningful bonds in current conditions (hint: it's often around a table) and about the specters of other, better worlds that haunt Chang-rae's fictions. He discusses his relationship to his own work and the benefits of taking an "orbital view" on his writing. Chang-rae also offers a tantalizing glimpse into his current project, a semi-autobiographical novel about Korean-American immigrants in 1970s New York. In response to a brand new signature question for the podcast this season, Chang-rae reveals the talent he wishes he could suddenly have--one that Anne already possesses
Zhongguo neng cheng wei shi jie gong chang ma?
No full textBen shu shou ru lun wen 41 pian, nei rong wei rao " zhong guo neng fou cheng wei shi jie gong chang " zhe ge zhu ti. bian zhe ren wei : mu qian zhong guo hai bu shi " shi jie gong chang " huo " shi jie zhi zao ye ji di " ; zhong guo zhi shi zai lao dong li mi ji xing chan ye yi ji lao dong mi ji xing yu ji shu mi ji xing xiang jie he de zu zhuang jia gong ye ling yu, ke yi shuo yi cheng wei shi jie de gong chan
A Review of Cloud Business Models and Sustainability
Full text linkThis paper reviews current cloud computing business models and presents proposals on how organisations can achieve sustainability by adopting appropriate models. Using the Jericho Forum’s Cloud Cube Model (CCM), we classify cloud computing business models into eight types: (1) Service Provider and Service Orientation; (2) Support and Services Contracts; (3) In-House Private Clouds; (4) All-In-One Enterprise Cloud; (5) One-Stop Resources and Services; (6) Government Funding; (7) Venture Capitals; and (8) Entertainment and Social Networking. We newly propose the Hexagon Model that includes six key elements for sustainability based on Sun Tzu’s Art of War and literature review, and the sixth factor is rated based on case studies and peer reviews. Areas occupied in the Hexagon can represent strengths and weaknesses of a cloud business, and several cases are presented with rationale explained. Apart from the qualitative approach, the quantitative approach we use is the Capital Asset Pricing Model and Modern Portfolio Theory, both of which aim computing organisational sustainability and predict how well an organisation can perform. The OMII-UK data is used to demonstrate sustainability and study the impact on cloud businesses, and is presented by statistical computation, 3D visualisation and the Hexagon Model. We believe that adopting an appropriate cloud computing business model will help organisations investing in this technology to stand firm at all times
sj-docx-1-onc-10.1177_11795549221113244 – Supplemental material for Roundabout Guidance Receptor 1 Is an Emerging Prognostic Biomarker for Nasopharyngeal Carcinoma
No full textSupplemental material, sj-docx-1-onc-10.1177_11795549221113244 for Roundabout Guidance Receptor 1 Is an Emerging Prognostic Biomarker for Nasopharyngeal Carcinoma by Sung-Wei Lee, Ching-Chieh Yang, Hong-Yue Lai, Hsin-Hwa Tsai, Cheng-Fa Yeh, Yu-Hsuan Kuo, Nai-Wen Kang, Tzu-Ju Chen and Shih-Lun Chang in Clinical Medicine Insights: Oncology</p
sj-docx-2-onc-10.1177_11795549221113244 – Supplemental material for Roundabout Guidance Receptor 1 Is an Emerging Prognostic Biomarker for Nasopharyngeal Carcinoma
No full textSupplemental material, sj-docx-2-onc-10.1177_11795549221113244 for Roundabout Guidance Receptor 1 Is an Emerging Prognostic Biomarker for Nasopharyngeal Carcinoma by Sung-Wei Lee, Ching-Chieh Yang, Hong-Yue Lai, Hsin-Hwa Tsai, Cheng-Fa Yeh, Yu-Hsuan Kuo, Nai-Wen Kang, Tzu-Ju Chen and Shih-Lun Chang in Clinical Medicine Insights: Oncology</p
sj-pdf-1-imr-10.1177_03000605221110697 - Supplemental material for Irinotecan dose reduction in metastatic colorectal cancer patients with homozygous <i>UGT1A1*28</i> polymorphism: a single-center case series
No full textSupplemental material, sj-pdf-1-imr-10.1177_03000605221110697 for Irinotecan dose reduction in metastatic colorectal cancer patients with homozygous UGT1A1*28 polymorphism: a single-center case series by Hsiang-Lin Tsai, Po-Jung Chen, Yen-Cheng Chen, Ching-Chun Li, Tsung-Kun Chang, Wei-Chih Su, Tzu-Chieh Yin, Ching-Wen Huang and Jaw-Yuan Wang in Journal of International Medical Research</p
sj-docx-3-onc-10.1177_11795549221113244 – Supplemental material for Roundabout Guidance Receptor 1 Is an Emerging Prognostic Biomarker for Nasopharyngeal Carcinoma
No full textSupplemental material, sj-docx-3-onc-10.1177_11795549221113244 for Roundabout Guidance Receptor 1 Is an Emerging Prognostic Biomarker for Nasopharyngeal Carcinoma by Sung-Wei Lee, Ching-Chieh Yang, Hong-Yue Lai, Hsin-Hwa Tsai, Cheng-Fa Yeh, Yu-Hsuan Kuo, Nai-Wen Kang, Tzu-Ju Chen and Shih-Lun Chang in Clinical Medicine Insights: Oncology</p
Formation of Co-Si-N nanocrystal for nonvolatile memory application
No full textCurrent requirement of nonvolatile memory (NVM) are high density cell, low-power wastage, high speed operation, and good reliability for the scaling down device. In a conventional nonvolatile memory, once the tunnel oxide develops a leaky path under repeated write/erase operation, all the stored charge will be lost. Therefore, the tunnel oxide thickness is incapable to scale down in terms of charge retention and endurance characteristics. Therefore conventional floating gate (FG) nonvolatile memories (NVMs) present critical issues on device scalability beyond the sub-50nm node. The nonvolatile nanocrystal memories are one of promising candidates to substitute for the conventional floating gate (FG) memories, because the nanocrystal memories storage charge by separated node. So it is not major influence of charge lost from partial oxide layer. The thickness of tunnel oxide can be reduce also can maintain good retention, therefore it is key to lowering operating voltages and increasing operating speeds. Also reduce device to increasing the density of device.
The advantages of metal nano-dot compared with other material counterparts include stronger coupling with the conduction channel, a wide range of available work functions, and higher density of states around the Fermi level. Because these advantages. It is possibility of metal nanocrystals nonvolatile memory fabricated in industry in practice.
In this thesis, an ease and low temperature fabrication technique of Co-Si-N nanocrystals was demonstrated for the application of nonvolatile memory. The nonvolatile memory structure of Co-Si-N nanocrystals embedded in the SiOx layer was fabricated by sputtering a co-mix target (CoSi2) in an Ar/N2 environment at room temperature. It can be considered that the nitrogen plays a critical role during sputter process for the formation of nanocrystal. In addition, the high density (~1012 cm-2) nanocrystal can be simple and uniform to be fabricated in our study. We also proposed a formation of Co-Si-N nanocrystals by sputtering a co-mix target (CoSi2) in the Ar/NH3 environment at room temperature. It was also found that high density Ni-Si-N nanocrystals embedded in the silicon nitride (SiNx) and larger memory effect.
A rapid thermal annealing (RTA) with process temperature at 700\uc2\ub0C\ue3800\uc2\ub0C and short duration (60sec) was used to form nanocrystals. The charge storage layer of nanorystals embedded in SiNx shows larger memory window and better reliability over nanocrystals embedded in SiOx, due to different distributions of electronic field
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