327 research outputs found
Metformin suppresses esophageal cancer progression through the radiation‑induced cellular senescence of cancer‑associated fibroblasts
No full text金沢大学博士(医学)博士論文 要旨Abstract/本文Full 以下に掲載：Oncology Reports 52(4) pp.129-140 2024. Spandidos Publications. 共著者：Yuya Sugimoto, Koichi Okamoto, Hiroto Saito, Takahisa Yamaguchi, Jun Kinoshita, Keishi Nakamura, Takahisa Takino, Yoshio Endo, Itasu Ninomiya, Tetsuo Ohta, Noriyuki Inakidoctoral thesi
The Sakai-Sugimoto soliton
No full textThe Sakai-Sugimoto model is the preeminent example of a string theory description of holographic QCD, in which baryons correspond to topological solitons in the bulk. Here we investigate the validity of various approximations of the Sakai-Sugimoto soliton that are used widely to study the properties of holographic baryons. These approximations include the flat space self-dual instanton, a linear expansion in terms of eigenfunctions in the holographic direction and an asymptotic power series at large radius. These different approaches have produced contradictory results in the literature regarding properties of the baryon, such as relations for the electromagnetic form factors. Here we determine the regions of validity of these various approximations and show how to relate different approximations in contiguous regions of applicability. This analysis clarifies the source of the contradictory results in the literature and resolves some outstanding issues, including the use of the flat space self-dual instanton, the detailed properties of the asymptotic soliton tail, and the role of the UV cutoff introduced in previous investigations. A consequence of our analysis is the discovery of a new large scale, that grows logarithmically with the 't Hooft coupling, at which the soliton fields enter a nonlinear regime. Finally, we provide the first numerical computation of the Sakai-Sugimoto soliton and demonstrate that the numerical results support our analysis. © 2014 The Author(s)
Study on Design of High Strength Bolted Flush End Plate Connections for Bridge Structures
No full textAuthor-level coefficients and standard error of citation impact by repeat authorship for economics journals.
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A MOS current-mode boost DC-DC converter with the duty-ratio-independent frequency characteristics
No full textAuthor-level coefficients and standard error of citation Impact by repeat authorship for <i>Nature</i>/<i>Science</i>/<i>PNAS</i>.
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The relationship between corresponding authorship and author position
No full textAuthorship is a marker of scientific capital and prestige, and corresponding authorship is associated with higher scientific status. Several studies have examined the relationship between corresponding author and author order; however, these studies often focus on small datasets, covering a limited number of research fields or time period. This study presented an empirical analysis of corresponding authorship as indexed in two major bibliometric databases (WoS and Scopus).
We found that although the number of documents with reprint author has increased steadily over time, WoS indexed more papers with reprint author metadata than Scopus, while the number of documents with more than one reprint author is larger in Scopus than in WoS. Besides, there are significant differences in documents where only one database identifies a reprint author or the reprint author is not the same. Therefore, there is an important need of future research to further understand these differences in indexing strategies between these two databases.
In our analysis of corresponding author in WoS, we found that WoS started registering consistently reprint author metadata from 2005 onwards and more than one reprint author in 2016, including author email data. We also found that first authorship is the most common position of the corresponding author, although this is declining in favour of middle and last author as corresponding authors, especially in MED and NSE fields. The average of percentage of papers with no corresponding author remain steady over time (around 20%).
There are also some country differences. Although first authorship is more likely to serve as corresponding author in most countries, there are exceptions such as South Korea, China or Taiwan, suggesting that different scientific cultures may also play a role in the choice of the corresponding author. Moreover, the percentages of articles with more than one corresponding author or “equal first authors” has risen over time. This might also point that funding incentives have implications on the raise of more than one corresponding author in publications, which open new research questions to be further investigated.
Given the value of bibliometric metadata for science policy, it is important to assess their strengths and weaknesses in order to guarantee the bibliometric relevance of the sources. This is particularly relevant nowadays, with more bibliometric databases being developed (e.g. Dimensions.ai or OpenAlex). How these databases operationalize specific metadata elements may differ substantially among them, and sometimes important metadata elements like the corresponding authors may even be overlooked (e.g. the current version of OpenAlex does not include corresponding author identification). It is therefore important to continue studying these differences among data sources and provide better evidence for researchers to choose those which better represent their ultimate goals
<Articles>An Inquiry into the Name of Champa in Indo-China
No full textインドシナにおけるインドの一植民地であったチャムパに、初期に移住したインド人が、インドのどの地方から来たものであったか。チャムパの名そのものから、それを探ってみたいというのが、この小篇の目的である。そのため考えられることは、移住民は、たださえ故郷を忘じがたい上に、その移住先に、これを偲ばしめるものがあるばあい、故郷名を附けがちであると思われる限り、この点から、解決の鍵が見出されないであろうか。The author of the present study aims, by examining the name of Champa, at revealing that since it had the city and kingdom of the said name on the Ganges North India is, in all probability, the mother-land of the early Indian immigrants in Champa, . According to his researches, it seems to the author that the colonists who came from North India to Champa, finding there several topographical similarities, and so perhaps longing for their home now and then, may have given the native appellation to their new colony, as was often the case in other places. This result will not conflict with the conclusion obtained by the same author from another study entitled "An Historical Problem of the Indian Culture in Indo-China" from the viewpoint of the calendar system of Champa in comparion with those of North and South India
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