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Search Results: 1 - 10 of 82948 matches for " WU Wen Sheng "
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4-tert-Butyl-2-(4-tert-butylpyridin-2-yl)pyridinium nitrate
Wen-Sheng Wu
Acta Crystallographica Section E , 2011, DOI: 10.1107/s1600536811028030
Abstract: In the title compound, C18H25N2+·NO3 , the dihedral angle between the pyridine rings is 19.06 (10)°. In the crystal, the ions are linked into a three-dimensional network by N—H...O and C—H...O hydrogen-bonding interactions.
2,3-Diphenylquinoxalin-1-ium chloride
Wen-Sheng Wu
Acta Crystallographica Section E , 2010, DOI: 10.1107/s1600536810023883
Abstract: The title compound, C20H15N2+·Cl , was prepared by the reaction of benzil with o-phenylenediamine in refluxing ethanol and then crystallized in 5% hydrochloric acid. The two phenyl rings are oriented at dihedral angles of 50.93 (8) and 50.28 (8)° with respect to the quinoxalin-1-ium ring system. The dihedral angle between the two phenyl rings is 56.71 (10)°. In the crystal, the cations and anions are linked by N—H...Cl and C—H...Cl interactions, forming chains along the b axis.
Evaluation of a Mobile Station Electronic Health Record on Documentation Compliance and Nurses’ Attitudes  [PDF]
Mei-Wen Wu, Ting-Ting Lee, Tzu-Chuan Tsai, Chin-Yi Huang, Francis Fu-Sheng Wu, Mary Etta Mills
Open Journal of Nursing (OJN) , 2015, DOI: 10.4236/ojn.2015.57071
Abstract: Electronic Health Record (EHR) Systems have been adopted by healthcare organizations for documentation of patient care. Often these information systems are embedded in mobile nurse stations. As part of assessing the impact of this technology it is important to determine the effect it has on charting compliance and user acceptance. Data were collected at a medical center in Taiwan in two stages. The first stage involved use of a 28-item medical review tool to measure charting compliance in 99 charts before and after implementation of the EHR system. In stage two, a survey was conducted with 709 nurse users to determine their level of mobile EHR acceptance 3 months after this documentation technology was initiated. Results demonstrated that EHR significantly improved documentation compliance in standardized data entry format (name, date, time), abbreviation, content correction/revision, patient care needs, and care goals. Analysis of data from the five categories of a user acceptance survey revealed the following results (based on a 4-point Likert scale): patient care (2.92), nursing efficiency (2.78), education and training (2.98), usability (2.61), and usage benefits (2.87). The study concluded that use of mobile nurse stations with EHR can improve documentation compliance and that although frequent system downtime needs improvement, nurses generally have positive attitudes toward this technology application.
A Holographic Model of Two-Band Superconductor
Wen-Yu Wen,Mu-Sheng Wu,Shang-Yu Wu
Physics , 2013, DOI: 10.1103/PhysRevD.89.066005
Abstract: We construct a holographic two-band superconductor model with interband Josephson coupling. We investigate the effects the Josephson coupling has on the superconducting condensates and the critical temperature for their formation numerically, as well as analytically where possible. We calculate the AC conductivity and find it qualitatively similar to the single band superconductor. We investigate the nodal structure of our holographic two-band superconductor from the low temperature behavior of the thermal conductivity and find it nodeless.
Systematic identification of yeast cell cycle transcription factors using multiple data sources
Wei-Sheng Wu, Wen-Hsiung Li
BMC Bioinformatics , 2008, DOI: 10.1186/1471-2105-9-522
Abstract: We developed a method to identify cell cycle TFs in yeast by integrating current ChIP-chip, mutant, transcription factor binding site (TFBS), and cell cycle gene expression data. We identified 17 cell cycle TFs, 12 of which are known cell cycle TFs, while the remaining five (Ash1, Rlm1, Ste12, Stp1, Tec1) are putative novel cell cycle TFs. For each cell cycle TF, we assigned specific cell cycle phases in which the TF functions and identified the time lag for the TF to exert regulatory effects on its target genes. We also identified 178 novel cell cycle-regulated genes, among which 59 have unknown functions, but they may now be annotated as cell cycle-regulated genes. Most of our predictions are supported by previous experimental or computational studies. Furthermore, a high confidence TF-gene regulatory matrix is derived as a byproduct of our method. Each TF-gene regulatory relationship in this matrix is supported by at least three data sources: gene expression, TFBS, and ChIP-chip or/and mutant data. We show that our method performs better than four existing methods for identifying yeast cell cycle TFs. Finally, an application of our method to different cell cycle gene expression datasets suggests that our method is robust.Our method is effective for identifying yeast cell cycle TFs and cell cycle-regulated genes. Many of our predictions are validated by the literature. Our study shows that integrating multiple data sources is a powerful approach to studying complex biological systems.Eukaryotic cell cycle is a complex process and is precisely regulated at many levels. One important aspect of this regulation is at the transcriptional level. That is, many genes specific to the cell cycle are transcribed just before they are needed [1]. To have a good understanding of the cell cycle, it is essential to identify the cell cycle-regulated genes and their transcriptional regulators. DNA microarray analysis has revealed that the expression levels of ~800 genes vary in a p
Identifying gene regulatory modules of heat shock response in yeast
Wei-Sheng Wu, Wen-Hsiung Li
BMC Genomics , 2008, DOI: 10.1186/1471-2164-9-439
Abstract: Integrating transcription factor binding site (TFBS), mutant, ChIP-chip, and heat shock time series gene expression data, we develop a method, called Heat-Inducible Module Identification Algorithm (HIMIA), for reconstructing GRMs of yeast heat shock response. Unlike previous module inference tools which are static statistics-based methods, HIMIA is a dynamic system model-based method that utilizes the dynamic nature of time series gene expression data. HIMIA identifies 29 GRMs, which in total contain 182 heat-inducible genes regulated by 12 heat-responsive TFs. Using various types of published data, we validate the biological relevance of the identified GRMs. Our analysis suggests that different combinations of a fairly small number of heat-responsive TFs regulate a large number of genes involved in heat shock response and that there may exist crosstalk between heat shock response and other cellular processes. Using HIMIA, we identify 68 uncharacterized genes that may be involved in heat shock response and we also identify their plausible heat-responsive regulators. Furthermore, HIMIA is capable of assigning the regulatory roles of the TFs that regulate GRMs and Cst6, Hsf1, Msn2, Msn4, and Yap1 are found to be activators of several GRMs. In addition, HIMIA refines two clusters of genes involved in heat shock response and provides a better understanding of how the complex expression program of heat shock response is regulated. Finally, we show that HIMIA outperforms four current module inference tools (GRAM, MOFA, ReMoDisvovery, and SAMBA), and we conduct two randomization tests to show that the output of HIMIA is statistically meaningful.HIMIA is effective for reconstructing GRMs of yeast heat shock response. Indeed, many of the reconstructed GRMs are in agreement with previous studies. Further, HIMIA predicts several interesting new modules and novel TF combinations. Our study shows that integrating multiple types of data is a powerful approach to studying complex
Min-Ping Wu,Sheng-Wen Hsieh
International Journal of Instruction , 2008,
Abstract: This study focused on the English language teaching methodologies used by a small number of the ELD teachers in Fullerton school district in the United States and EFL teachers in ABC school in Taiwan. The instruments, interview, observation and field notes, were used to gather the evidences of useful oral language teaching methodologies. Results indicate that most of the methodologies utilized in the ELD and EFL programs are consistent with each other. However, the ELD teachers were more capable to provide valuable resolution of the obstacles of teaching oral language as well as the instances of delivering oral language methodologies. The researcher made an action plan targeted to findings of the following questions. 1. What materials are used to deliver oral language instruction in both countries? 2 What methodologies are the most useful and well-liked by students? 3. How are students motivated to acquire English oral language skills in both countries?
Scattering theory without large-distance asymptotics: scattering boundary condition
Wen-Du Li,Wu-Sheng Dai
Physics , 2015,
Abstract: By large-distance asymptotics, in conventional scattering theory, at the cost of losing the information of the distance between target and observer, one arrives at an explicit expression for scattering wave functions represented by a scattering phase shift. In the present paper, together with a preceding paper (T. Liu,W.-D. Li, and W.-S. Dai, JHEP06(2014)087), we establish a rigorous scattering theory without imposing large-distance asymptotics. We show that even without large-distance asymptotics, one can also obtain an explicit scattering wave function represented also by a scattering phase shift, in which, of course, the information of the distance is preserved. Nevertheless, the scattering amplitude obtained in the preceding paper depends not only on the scattering angle but also on the distance between target and observer. In this paper, by constructing a scattering boundary condition without large-distance asymptotics, we introduce a scattering amplitude, like that in conventional scattering theory, depending only on the scattering angle and being independent of the distance. Such a scattering amplitude, when taking large-distance asymptotics, will recover the scattering amplitude in conventional scattering theory. The present paper, with the preceding paper, provides a complete scattering theory without large-distance asymptotics.
Scattering theory without large-distance asymptotics
Tong Liu,Wen-Du Li,Wu-Sheng Dai
Physics , 2014, DOI: 10.1007/JHEP06(2014)087
Abstract: In conventional scattering theory, to obtain an explicit result, one imposes a precondition that the distance between target and observer is infinite. With the help of this precondition, one can asymptotically replace the Hankel function and the Bessel function with the sine functions so that one can achieve an explicit result. Nevertheless, after such a treatment, the information of the distance between target and observer is inevitably lost. In this paper, we show that such a precondition is not necessary: without losing any information of distance, one can still obtain an explicit result of a scattering rigorously. In other words, we give an rigorous explicit scattering result which contains the information of distance between target and observer. We show that at a finite distance, a modification factor --- the Bessel polynomial --- appears in the scattering amplitude, and, consequently, the cross section depends on the distance, the outgoing wave-front surface is no longer a sphere, and, besides the phase shift, there is an additional phase (the argument of the Bessel polynomial) appears in the scattering wave function.
Scattering theory without large-distance asymptotics in arbitrary dimensions
Wen-Du Li,Wu-Sheng Dai
Physics , 2015,
Abstract: In conventional scattering theory, by large-distance asymptotics, at the cost of losing the information of the distance between target and observer, one imposes a large-distance asymptotics to achieve a scattering wave function which can be represented explicitly by a scattering phase shift. In this paper, without large-distance asymptotics, we establish an arbitrary-dimensional scattering theory. Arbitrary-dimensional scattering wave functions, scattering boundary conditions, cross sections, and phase shifts are given without large-distance asymptotics. The importance of an arbitrary-dimensional scattering theory is that the dimensional renormalization procedure in quantum field theory needs an arbitrary-dimensional result. Moreover, we give a discussion of one- and two-dimensional scatterings.
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