265,612 research outputs found
Dispelling the Myths Behind First-author Citation Counts
Full text linkWe conducted a full-scale evaluative citation analysis study of scholars in the XML research field to explore just how different from each other author rankings resulting from different citation counting methods actually are, and to demonstrate the capability of emerging data and tools on the Web in supporting more realistic citation counting methods. Our results contest some common arguments for the continued
use of first-author citation counts in the evaluation of scholars, such as high correlations between author rankings by first-author citation counts and other citation
counting methods, and high costs of using more realistic citation counting methods that are not well-supported by the ISI databases. It is argued that increasingly available digital full text research papers make it possible for citation analysis studies to go beyond what the ISI databases have directly supported and to employ more
sophisticated methods
Sanyuania Zhao & Han 1980
No full textSanyuania Zhao & Han, 1980 Type species: Sanyuania psaronius Zhao & Han, 1980 (marine fossil species) Sanyuania segersi Savatenalinton & Martens, 2009: OLPublished as part of Meisch, Claude, Smith, Robin J. & Martens, Koen, 2019, A subjective global checklist of the extant non-marine Ostracoda (Crustacea), pp. 1-135 in European Journal of Taxonomy 492 on page 98, DOI: 10.5852/ejt.2019.492, http://zenodo.org/record/327109
[Report to Chief J. E. Curry, by an unknown author #1]
No full textReport to Chief J. E. Curry, by an unknown author. The report contains a list of officers who gave depositions to the United States Attorney
[Report to Chief J. E. Curry, by an unknown author #2]
No full textReport to Chief J. E. Curry, by an unknown author. The report contains a list of officers who gave depositions to the United States Attorney
Chao Yuen Ren (1892–1982)
No full textY. R. Chao is easily the most famous linguist to have come out of China. Born before the end of the last dynasty in China, he received a traditional Confucian education, but was also one of the first Chinese people to be sent to the West for training in modern Western science (under the Boxer Indemnity Fund). The remarkable breadth and scope of his studies included physics, mathematics, linguistics, musical and literary composition, and translation, and he was a pioneer in many of these fields
Helvella guttata Q. Zhao & J. R. Lu 2023, sp. nov
No full textHelvella guttata Q. Zhao & J.R. Lu sp. nov Fig. 1, 2 Index Fungorum number: IF 900384; Faces of Fungi number: FoF 14372. Etymology: Guttata refers to its guttata hymenium surface. Holotype: CHINA, Yunnan Province, Lushui County, Luzhuang, alt. 900 m, 26 Aug. 2009, Qing Cai 274 (HKAS 67836). Diagnosis: Similar to Helvella macropus but differs in its constantly mottled hymenium, and larger subellipsoid to subfusiform ascospores. Sexual morph: Pileus shallowly cupulate to discoid, 0.3–1 cm high, 1–2.5 cm broad, hymenium even, brown to dark brown, constantly mottled with patches of paler pigmentation when fresh, brownish when dried, receptacle surface villose to densely pubescent, greyish, light brown to dark brown when fresh, becoming greyish brown to dark brown when dried. Stipe 1–6 cm long, 0.2–0.5 cm diam, terete, internally solid, villose to densely pubescent, concolorous with the receptacle surface. Medullary excipulum 200–350 μm broad, of textura intricata, hyaline, composed of 3–7 μm diam hyphae, walls thickened, J-. Ectal excipulum 90–180 μm broad, of textura angularis, brown, terminal cells 18–40 × 7–13 μm, blue in cotton blue, J-. Stipitipellis 140–250 μm, of textura angularis, hyaline, terminal cells 18–28 × 7–15 μm, blue in cotton blue, J-. Asci arising from croziers, 8-spored, subcylindrical to clavate, with apex rounded, 200–300 × 14–22 μm, J- in Melzer’s reagent, blue in cotton blue. Paraphyses filiform, 3–4 μm dia., slightly exceeding the asci, apex enlarged, 7–10 μm dia., brown, blue in cotton blue, J-. Ascospores [80/4/2, in H 2 O] (20–)21–27.5(–28) × (11–)11.5–15(–16) μm [Q = 1.56–2.16, Q m = 1.78 ± 0.18)], subellipsoid to subfusoid, smooth-walled under the light microscope, uniguttulate, with large central globose to broadly ellipsoidal oil droplet. Asexual morph: Undetermined. Habitat: Scattered or gregarious on the ground, under Quercus spp. forest. Distribution: Currently only known in southwestern China. Material examined: CHINA, Yunnan Province, Lushui County, under Quercus sp. forest, alt. 1000 m, 26 Aug. 2009, Ting Guo 56 (HKAS 69046), same location, 6 Aug. 2010, Ting Guo 150 (HKAS 69546); Lijiang City, under Quercus sp. forest, alt. 2600 m, 20 Aug. 2010, Qi Zhao 1012 (HKAS 69733); Tibet, Bomi County, under Quercus sp. forest, alt. 2700 m, 30 Jun. 2014, Qi Zhao 2079 (HKAS 87759). Notes: Morphologically, H. guttata and H. macropus both share cupulate pileus, villose receptacle, and stipe surface, and subfusiform ascospores. However, the latter species never possess mottled apothecia, and the hymenium or receptacle surface is usually light to medium brown or greyish brown. In microstructure, H. macropus has slenderer ascospores than H. guttata. In phylogeny, H. guttata is the sister of H. macropus, which has relatively high statistical support (Fig. 1). The comparison of H. guttata with its phylogenetic relatives (H. ephippioides, H. fibrosa, and H. macropus) in fibrosa–macropus lineage is shown in Table 2.Published as part of Lu, Jin-Rong, Yu, Feng-Ming, Lei, Lei, Zhang, Ying & Zhao, Qi, 2023, A new species of Helvella (Helvellaceae, Pezizomycetes) within the H. macropus group from China, pp. 212-222 in Phytotaxa 601 (3) on pages 216-217, DOI: 10.11646/phytotaxa.601.3.2, http://zenodo.org/record/814175
Skyrmion-skyrmion and skyrmion-edge repulsions in skyrmion-based racetrack memory
No full textMagnetic skyrmions are promising for building next-generation magnetic memories and spintronic devices due to their stability, small size and the extremely low currents needed to move them. In particular, skyrmion-based racetrack memory is attractive for information technology, where skyrmions are used to store information as data bits instead of traditional domain walls. Here we numerically demonstrate the impacts of skyrmion-skyrmion and skyrmion-edge repulsions on the feasibility of skyrmion-based racetrack memory. The reliable and practicable spacing between consecutive skyrmionic bits on the racetrack as well as the ability to adjust it are investigated. Clogging of skyrmionic bits is found at the end of the racetrack, leading to the reduction of skyrmion size. Further, we demonstrate an effective and simple method to avoid the clogging of skyrmionic bits, which ensures the elimination of skyrmionic bits beyond the reading element. Our results give guidance for the design and development of future skyrmion-based racetrack memory
Helvella cystidiata R. J. Xu, Q. Zhao & K. D. Hyde 2022, sp. nov.
No full textHelvella cystidiata R.J. Xu, Q. Zhao & K.D. Hyde, sp. nov. FIGURE 3 Index Fungorum number: IF559702, Facesoffungi number: FoF 11345 Etymology. Cystidiata, named after the inflated ectal excipulum cells. Holotype: HKAS 78941 Pileus loosely saddle-shaped to irregularly lobed, 1–3 cm high, 1–4 cm broad, margin reflexed and fused with stipe, hymenium slightly wrinkled to rugose, greyish to greyish brown when fresh, becoming brown to blackish when dry, receptacle surface even, grey to greyish brown when fresh, becoming brownish when dry. Stipe 3–5 cm long, 0.5–1 cm broad, lacunose, with rounded-ribs, glabrous, greyish to greyish brown when fresh, becoming brownish when dry, with white mycelium at the base. Medullary excipulum 90–210 μm broad, of textura intricata, hyaline, composed of 3–4 μm broad hyphae, walls thickened, J- in Melzer’s reagent. Ectal excipulum 60–110 μm broad, of textura angularis, composed of 20–50 × 20–30 μm, subglobose to ellipsoid, inflated cells, hyaline, terminal cells 10–35 × 8–20 μm, blue in cotton blue, J-. Stipitipellis 45–70 μm, of textura angularis, hyaline, terminal cells 8–44 × 5–20 μm, blue in cotton blue, J-. Asci arising from croziers, 8-spored, subcylindrical to clavate, with apex rounded, 200–330 × 13–19 μm, J- in Melzer’s reagent, blue in cotton blue. Paraphyses filiform, 3–5 μm broad, slightly exceeding the asci, apex enlarged, 4–8 μm broad, hyaline, blue in cotton blue, J-. Ascospores [80/2/2, in H 2 O] 15–18.5 × 9–12 (–12.5) μm [Q = (1.33–1.83), Qm = (1.62 ± 0.86)], ellipsoid, smooth-walled under the light microscope, uniguttulate, with large central globose to broadly ellipsoidal oil droplet. Asexual morph: Undetermined. Habitat: Scattered or gregarious on the ground, under Pinus yunnanensis forests. Distribution: Currently only known in southwestern China. Specimen examined: CHINA, Yunnan Province, Gucheng County, on the ground, under Pinus yunnanensis Franch, alt. 2500 m, 16 Sep. 2012, Qi Zhao 1683 (HKAS 78941, holotype). CHINA, Yunnan Province, Lanping County, on the ground, alt. 2300 m, 16 Aug. 2011, Qi Zhao 1363 (HKAS 74316). Notes: Helvella cystidiata is characterized by its loosely saddle-shaped pileus with a margin reflexed and fused with stipe, a slightly wrinkled to rugose, greyish to grey-brown hymenium, an even, grey to greyish receptacle surface, a lacunose stipe with rounded-ribs, ectal excipulum comprised of ellipsoid to subglobose inflated cells and all tissues J- in Melzer’s reagent. Morphologically, Helvella cystidiata is similar to H. lacunosa, both sharing a margin flexed and fused with stipe of pileus and lacunose stipe, but the latter differs from the former as pubescent, yellowish brown to brownish when fresh. Ectal excipulum cells catenuliform in long fasciculate tufts (Afzelius 1783). Phylogenetically, Helvella cystidiata is allied with H. pseudolacunosa with strong statistical support (99% ML, 1.00 BYPP, FIGURE 1) and (97% ML, 1.00 BYPP, FIGURE 2). However, the latter species has a pinched hymenium, a creamy receptacle surface, and a lacunose stipe with an enlarged base (Ariyawansa et al. 2015).Published as part of Xu, Rong-Ju, Li, Lu & Zhao, Qi, 2022, Helvella cystidiata sp. nov. (Helvellaceae, Ascomycota) from Tibetan Plateau, China, pp. 82-92 in Phytotaxa 560 (1) on page 85, DOI: 10.11646/phytotaxa.560.1.6, http://zenodo.org/record/703127
Hoploseius chinensis Bai, Yan & Zhao 2013
No full textHoploseius chinensis Bai , Yan & Zhao, 2013 Hoploseius chinensis Bai, Yan & Zhao, 2013: 811. TYPE DEPOSITORY: Collection of the Medical Entomology, of Institute of Microbiology and Epidemiology, Academy of Military Medical Science, Beijing, China. TYPE LOCALITY AND HABITAT: Yinchuan, 38.5o N, 106.3o E, Ningxia Hui Autonomus Region, China, on Polyporus sp. (Fungi: Polyporaceae) on Salix sp. (Plantae: Salicaceae).Published as part of De Moraes, Gilberto J., Britto, Erika P. J., Mineiro, Jefferson L. De C. & Halliday, Bruce, 2016, Catalogue of the mite families Ascidae Voigts & Oudemans, Blattisociidae Garman and Melicharidae Hirschmann (Acari: Mesostigmata), pp. 1-299 in Zootaxa 4112 (1) on page 157, DOI: 10.11646/zootaxa.4112.1.1, http://zenodo.org/record/39947
Crater counting and mare basalt unit data for Zhao et al. 2023 Icarus-PIV
No full textShapefiles of Zhao et al. (2023) mare age units and crater count areas.Citation:Chen, J., Ling, Z., Liu, J., et al., (2022), Digital and global lithologic mapping of the Moon at a 1:2,500,000 scale. Science Bulletin, 67(20): 2050-2054.Lu, X., Cao, H., Ling, Z., Fu, X., Qiao, L., Chen, J. Geomorphology, Mineralogy, and Geochronology of Mare Basalts and Non-Mare Materials around the Lunar Crisium Basin. Remote Sensing, 2021, 13: 4828.Zhao, Z., Chen, J., Ling, Z., et al., (2023), Chronology, composition, and mineralogy of mare basalts in the junction of Oceanus Procellarum, Mare Imbrium, Mare Insularum, and Mare Vaporum. Icarus, 397, 115531.</p
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