55,775 research outputs found
Chung H. Lee, Senior Recital, April 18, 1974
No full textConcert program for Chung H. Lee, Senior Recital, April 18,
197
Tzu-chung (Tzu-chou)
No full textTZU-CHUNG (TZU-CHOU)
China Proper SW (-)
Tzu-chung (Tzu-chou) (Sheet H-48-O) ( -
Sedum triangulisepalum T. S. Liu & N. J. Chung ex T. C. Hsu & S. W. Chung 2022, sp. nov.
No full text<p> <i>Sedum triangulisepalum</i> T.S. Liu & N.J. Chung ex T.C. Hsu & S.W. Chung, <i>sp. nov.</i></p> <p> [“ <i>Sedum triangulisepalum</i> T.S. Liu & N.J. Chung (1977: 21, as <i>triangulosepalum</i>)”, <i>nom. inval.</i>; “ <i>Sedum triangulisepalum</i> T.S. Liu & N.J. Chung ex H.W. Lin (1999: 102, as <i>triangulosepalum</i>)”, <i>nom. inval.</i>; “ <i>Sedum triangulisepalum</i> T.S. Liu & N.J. Chung ex S.W. Chung ” in Chen <i>et al.</i> (2017: 329, as <i>triangulosepalum</i>), <i>nom. inval.</i>].</p> <p> <b>Type:</b> — TAIWAN. Hualien County: Hsiulin Township, Lo-ma-wan Shan, 1800 m elev., 15 June 1973, <i>N.J. Chung 280</i> (holotype: NTUF!, barcode: F00008307; isotypes: NTUF!, eight sheets, barcodes: F00008308–F00008315).</p> <p> <b>Diagnosis:</b> — <i>Sedum triangulisepalum</i> is similar to <i>S. truncatistigmum</i> T.S. Liu & N.J. Chung (1977: 23) in sharing epiphytic life-form, alternate and ±flattened leaves and fused calyx, while the former is readily distinguished in having longer calyx (1.5–2.0 vs. 0.8–1.0 mm) that are only fused at the base (vs. nearly entirely fused).</p> <p> <b>Morphological descriptions and illustrations:</b> —This species has been described by Liu & Chung (1977: 21) and illustrated by Tang & Huang (1989: 27, pl. 15, as <i>Sedum microsepalum</i>), Chen <i>et al.</i> (2017: 329) and Ito <i>et al.</i> (2017: 11, fig. 1D).</p> <p> <b>Distribution and ecology:</b> — <i>Sedum triangulisepalum</i> is endemic in Taiwan, where it occurs in the northern and eastern portions of the main island and usually grows on tree trunks in montane cloud forests at 500–2000 m elev. (Liu & Chung 1977; Chen <i>et al.</i> 2017; Ito <i>et al.</i> 2017).</p> <p> <b>Etymology:</b> —The specific epithet is composed of two Latin elements: <i>triangulus</i>, triangular, and <i>sepalum</i>, sepal, referring to its triangular calyx lobes. It should be spelt as “ <i>triangulisepalum</i> ” instead of “ <i>triangulosepalum</i> ” as originally published by Liu & Chung (1977) according to Art. 60.10 of the ICN.</p> <p> <b>Note:</b> —Two gatherings, “ <i>Suzuki s.n.</i> ” collected from Wulai and “ <i>Chuang 280</i> ” collected from Lomawanshan, were cited under <i>Sedum triangulisepalum</i> by Liu & Chung (1977), and “ <i>Chuang 280</i> ” is presumably a typo of “ <i>Chung 280</i> ” since the “ <i>N.J. Chung 280</i> ” gathering, collected by the second original author and currently preserved in NTUF, matches well with the data given in the original publication (Liu & Chung 1977). There are nine duplicates of <i>Chung 280</i>, including one (barcode: F00008307) labelled as “ holotype ” and the others (barcodes: F00008308–F00008315) as “isotype”. Although these labels could not be archived as the legitimate designation of types as they are not effectively published (see Art. 7.10 of the ICN), they supposedly reflect the original author’s intention and are thus adopted here. Images of all type materials are available in the “Plants of Taiwan ” database [http://tai2.ntu.edu.tw].</p>Published as part of <i>Hsu, Tian-Chuan & Chung, Shih-Wen, 2022, Validation of the name Sedum triangulosepalum (Crassulaceae), pp. 215-216 in Phytotaxa 547 (2)</i> on page 215, DOI: 10.11646/phytotaxa.547.2.10, <a href="http://zenodo.org/record/6571375">http://zenodo.org/record/6571375</a>
On a Conjecture by J. H. Chung
No full textThe present paper is a sequel to that of J. H. Chung (2) and contains a proof of a conjecture made by him, namely, that the number of ordinary (modular) irreducible representations contained in a given p-block of Sn is independent of the p-core. A summary of the results contained herein appeared in the Proceedings of the National Academy of Sciences (9).</jats:p
Concentration in Knowledge Output: A case of Economics Journals
No full textThis paper assesses the degree of author concentration in seven economics journals, which were published in India during 1990-2002. To measure the degree of author concentration, Lotka's Law was used. Moreover, we also make an exploratory analysis of the geographic, economics subfield and institutional concentration in 704 economics journals. An important finding of this paper is that specialized journals in the sample report the highest degree of author concentration. This result is quite similar to the findings by Cox and Chung (1991). Furthermore, there are several instances showing that the journals lean towards certain norms; this may affect the flow of innovative ideas into economics. We conclude that a knowledge activity, involving the high degree of concentration and a biased publication process, may affect the flow of new ideas into the discipline.Concentration, Lotka's Law
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