156,120 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
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
Anomala linwenhsini Zhao & Zorn 2022
No full textThe Anomala linwenhsini -species group Four of the new species from Taiwan described in the present paper, i.e. A. linwenhsini Zhao & Zorn, new species, A. wutaiensis Zhao & Zorn, new species, A. kanshireiensis Zorn & Zhao, new species and A. inclinata Zhao & Zorn, new species comprise a homologous group. They are characterized by the combination of the following characters: body moderately convex, anterior margin of clypeus distinctly reflexed, elytral intervals strongly convex, strial punctures dense and large, lateral carina indistinct, epipleura with a row of long setae, protibia distinctly tridentate in both sexes, metatibia rather slender and not fusiform, parameres fully separated and more or less asymmetric, scutellar surface and disc of pronotum before scutellum with few short to long erect setae. The latter setae have so far not be found in all examined specimens, and the authors are uncertain at this point whether they are worn off in these cases or not present in all specimens. Anomala inconcinna Bates, 1888, also only known from Taiwan, is superficially very similar to the species of the linwenhsini -group. However, in A. inconcinna the protibia is clearly bidentate, it does not have singular long setae on pronotum or scutellum, the epipleural setae are slightly shorter, and the aedeagus is more or less symmetric. Therefore, the authors currently do not include A. inconcinna in the linwenhsini -group.Published as part of Zhao, Ming-Zhi & Zorn, Carsten, 2022, Contribution to the genus Anomala Samouelle, 1819 (Coleoptera: Scarabaeidae Rutelinae) of China and adjacent regions. Part II: six new species from Taiwan and Hainan, pp. 175-195 in Zootaxa 5168 (2) on page 180, DOI: 10.11646/zootaxa.5168.2.5, http://zenodo.org/record/687726
Milema Zhao & Li 2022, gen. nov.
No full textMilema Zhao & Li, gen. nov. Type species. Milema nuichua Zhao & Li, sp. nov. Diagnosis. This genus can be distinguished from Telema by the following characters: the ratio of the length of embolus/carapace 0.25–0.30 (vs. 0.50–0.65), the presence of a prolateral cymbial apophysis (vs. absence), belt-shaped tibial glands (vs. plate-shaped), the ratio of the length of embolus/bulb 0.38–1.10 (vs. smaller than 0.32); spermatheca sac-like or globular (vs. cane shaped). Description. Total length 0.90–1.15 in male, 0.95–1.20 in female. Carapace 0.40–0.51 long, Carapace pear shaped, pale or dark brown. Six eyes encircled by black or absent. Tibia I 0.52–0.94. Leg formula 1243, leg glands belt shaped. Abdomen blue or for males, bulb small relative to carapace, the length ratio of bulb/carapace 0.25–0.30. Length of cymbium> femur> tibia> patella; cymbial apophysis present prolaterally. Distribution. Southern Vietnam and Southern Thailand. Etymology. The generic name is a combination of the first two letters of millet (referring to the small size) and the latter four letters of Telema (type genus of the family); feminine in gender. Species included. Milema lorkor Zhao & Li, sp. nov., Milema nuichua Zhao & Li, sp. nov. and Milema sai Zhao & Li, sp. nov. Biology. Habitats of this genus are diverse. The type species, M. nuichua Zhao & Li, sp. nov. inhabits leaf litter; M. sai Zhao & Li, sp. nov. is found at cave entrances; and M. lorkor Zhao & Li, sp. nov. is found deep in caves. These spiders have particular morphological characters adapting to their diverse habitats.Published as part of Lin, Yejie, Zhao, Huifeng, Koh, Joseph K H & Li, Shuqiang, 2022, Taxonomy notes on twenty-eight spider species (Arachnida: Araneae) from Asia, pp. 198-270 in Zoological Systematics 47 (3) on page 245, DOI: 10.11865/zs.2022303, http://zenodo.org/record/717585
Measurement of rotational magnetic properties of nanocrystalline alloys by a modified B-H sensor
No full textNanocrystalline alloys are now widely used in high frequency electromagnetic applications such as high frequency transformers and chokes, while it’s two-dimensional properties are seldom investigated. The nanocrystalline sample can be extremely brittle after annealed and crystallized which is very difficult to measure the properties by traditional method in 2D cases. The magnetic properties of nanocrystalline alloys under rotating field are measured and discussed in this paper. By combining the needle probe technique and the H-coil method, the magnetic flux density B and the magnetic field strength H in the sample can be measured. Finally, the modified B-H sensor is calibrated by the Helmholtz coils and the sensitivity of measuring B and H can achieve 4.3 mV/T and 30 μV/A/m respectively
Burmalema Zhao & Li 2022, gen. nov.
No full textBurmalema Zhao & Li, gen. nov. Type species. Burmalema shan Zhao & Li, sp. nov. Diagnosis. The new genus resembles Telema Simon, 1882 by lacking a cymbial apophysis, but it can be distinguished by the following: belt-shaped tibial glands (vs. plate-shaped); ratio of embolus/bulb lengths ca. 0.80 (vs. less than 0.42), and twisted embolus (vs. triangular or nearly needle-shaped); females can be distinguished by the L-shaped endogyne with long and sclerotized tubes (vs. cane shaped, with membranous tubes). The new genus can be distinguished from all the other genera of Telemidae by the absence of a cymbial apophysis (vs. presence). Description. Total length 1.25–1.53, carapace 0.52–0.90 long. Eyes vestigial. Carapace, sternum, endites, labium and legs light brown. Endites longer than wide; labium wider than long. Tibia I 0.90–1.00. Leg formula 1243. In male, length of cymbium> femur> tibia> patella; prolateral cymbial apophysis absent; embolus spiraled and long relative to bulb. Endogyne simple, with tube inside, expended distally. Distribution. Myanmar. Etymology. The generic name is derived from “ Burma ”, referring the name of type locality, Myanmar, and “-lema” is a convention from Telema, the type genus of the family; feminine in gender. Species included. Burmalema shan sp. nov.Published as part of Lin, Yejie, Zhao, Huifeng, Koh, Joseph K H & Li, Shuqiang, 2022, Taxonomy notes on twenty-eight spider species (Arachnida: Araneae) from Asia, pp. 198-270 in Zoological Systematics 47 (3) on page 238, DOI: 10.11865/zs.2022303, http://zenodo.org/record/717585
Rhachicephala Truong, Zhao & Cai
No full text3. Rhachicephala Truong, Zhao & Cai, gen. nov. (Figs. 25–39) Type species. Rhachicephala dilatibia Truong, Zhao & Cai, sp. nov. Diagnostic characters. Head oval, distinctly deflected downwards in front of eyes and narrowed behind eyes, with two erect long spines behind bases of antenniferous tubercles (Figs. 25, 26); first antennal segment much longer than head, second segment longest, third and fourth segments thin and short; first rostral segment subequal in length to second segment; eyes large and protruded laterally. Pronotum transversely constricted before middle; lateral pronotal angles spinously produced; prosternum anteriorly armed with two strong spines; apex of scutellum spinously produced, postscutellum with a short spine (Fig. 26). Legs moderately long; fore femur much longer than fore tibia; basal two-fifths of fore tibia dilated outwards and compressed (Figs. 25, 27– 29); mid and hind femora beneath with a short spine subapically; posterior angle of each connexival segment spinously produced. Etymology. The new generic name, Rhachicephala, alludes to two erect long spines behind the bases of the antenniferous tubercles. The words rhachi and cephala mean spine and head, respectively, in Greek. Feminine. Remarks. The new genus is similar to Petalocheirus in the anterior angles of prosternum, the collar and posterior pronotal lateral angles spinously produced, fore tibia shorter than fore femur and the head deflected in front of eyes; but in the new genus the two long spines are inserted behind the bases of the antenniferous tubercles, the basal two-fifths of the fore tibia is dilated outwards (vs. head without spine behind base of antennal tubercle and fore tibia dilated its entire length in Petalocheirus). The general body plan of the new genus resembles that of Valentia Stål, but in the new genus the postscutellum has a short spine (vs. the postscutellum without spines, and the head without spine behind base of antennal tubercle also in genus Va l e n t i a). The new genus can be distinguished from the other Vietnamese genera of the reduviid subfamily Salyavatinae with the above key.Published as part of Truong, Xuan Lam, Zhao, Ping & Cai, Wan Zhi, 2007, Notes on the subfamily Salyavatinae (Hemiptera: Reduviidae) from Vietnam, with the description of a new genus, pp. 1-20 in Zootaxa 1615 on page 9, DOI: 10.5281/zenodo.17907
Liangcoris Zhao, Cai & Ren
No full textLiangcoris Zhao, Cai & Ren, gen. nov. Type species. Liangcoris yangae Zhao, Cai & Ren, sp. nov. Diagnosis. Medium sized, oblong, smooth, shiny. Head (including neck) distinctly shorter than pronotum (Fig. 1); eyes large, protruding laterally; ocelli widely separated; anteocular portion slightly shorter than postocular portion (including neck); first antennal segment nearly as long as head (Fig. 1); rostrum robust and recurved, second segment nearly as long as first, apical segment shortest. Pronotum with anterior lobe longer than half of posterior; anterior pronotal lobe developed, longitudinal median depression short, neither reaching collar anteriorly nor transverse constriction of pronotum posteriorly (Fig. 1); posterior pronotal lobe with disk distinctly depressed, longitudinal depression, which not reaching posterior margin of pronotum (Fig. 1); lateral pronotal angles rounded, posterior margin of pronotum slightly convex, posterior angles rounded; mesopleuron without a tubercular process near border of anterior margin; scutellum nearly triangular and unarmed; femora incrassate and subapical portion constricted, fore femora thickest. Abdomen slightly dilated laterally. Distribution. China. Etymology. The new generic name refers to the shiny surface of the new species. “Liang” in Chinese means bright and shiny, and “coris” in Greek means bug. Masculine. Remarks. The body of the new genus is smooth and shiny, which is distinctly different from that of all morphologically similar genera. The general body plan and the middle longitudinal sulcus on the anterior pronotal lobe resemble those of the genus Rhynocoris, but in the new genus the first antennal segment is subequal to the head and the femora are moderately thickened (vs. in Rhynocoris, where the first antennal segment is longer than head, mid and hind femora are not distinctly incrassate). The new genus is allied to Coranus in first antennal segment subequal in length to head, but mesopleuron lacks a tubercle near border of anterior margin, the scutellum is unarmed, and legs are unnodulose in new genus (vs. the mesopleuron has a tubercle near border of anterior margin, the scutellum is armed, and legs are nodulose in Coranus). The new genus is similar to Stalireduvius: the first antennal segment is subequal in length to the head and the mesopleuron lacks a tubercle near border of anterior margin; but the new genus can be separated from the latter in legs are unnodulose (vs. the legs nodulose in Stalireduvius). These four genera can be distinguished with the following key.Published as part of Zhao, Ping, Cai, Wanzhi & Ren, Dong, 2007, Liangcoris, a new genus of Harpactorinae (Hemiptera: Reduviidae) from China, pp. 63-68 in Zootaxa 1405 on pages 63-64, DOI: 10.5281/zenodo.17548
Styloperla starki Zhao, Huo & Du 2019
No full text<i>Styloperla starki</i> Zhao, Huo & Du, 2019 <p> <i>Styloperla starki</i>: Zhao <i>et al.</i>, 2019: 555.</p> <p> <b>Materials examined:</b> The specimens re-studied from Zhejiang and Jiangsu were recorded by Huo (2019), Zhao (2019), and Zhao <i>et al.</i> (2019).</p> <p> <b>Distribution:</b> Jiangsu and Zhejiang.</p> <p> <b>Remarks:</b> The number of ventral and subapical spines along the long process of the basal cercal segment varies between four and five (Figs. 7A–B); the apical spines are usually arranged side by side but may also be tandemed vertically (Figs. 7C–D); one apical and two of the subapical spines are occasionally aligned along the same plane (Fig. 8A–D).</p>Published as part of <i>Huo, Qing-Bo, Zhao, Meng-Yuan, Du, Yu-Zhou, Murányi, Dávid, Zhu, Bin-Qing & Yu, Lei, 2023, The intraspecific morphological variability of Styloperla Wu, 1935 (Plecoptera: Styloperlidae), pp. 125-137 in Zootaxa 5249 (1)</i> on page 129, DOI: 10.11646/zootaxa.5249.1.7, <a href="http://zenodo.org/record/7685409">http://zenodo.org/record/7685409</a>
Portfolio Construction by Mitigating Error Amplification: The Bounded-Noise Portfolio
No full text10.1287/opre.2019.1858OPERATIONS RESEARCH674965-98
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