78,034 research outputs found
In Memoriam: Tang Chung Chang (C. C. Tang), 1905-1993
Get PDFObituary of Tang Chung Chang (C. C. Tang), 1905-1993
Lycopus cha Tang & Li 2010, sp. nov.
No full textLycopus cha sp. nov. Figs 13–15 Type material. Holotype: ♂, CHINA: Yunnan: Xishuangbanna, Mengla County, Menglun Town, Menglun Nature Reserve, G213 Roadside, Anogeissus acuminate Plantation (N21º53.992', E101º16.948', alt. 596 m), 2 December 2009, G. Tang and Z. Y. Yao (Tang-Yao_No.38). Paratypes: 2 ♀, same data as holotype. Etymology. The specific name is from Chinese word for fork (chā), refers to the distal of RTA fork-shaped, noun in apposition. Diagnosis. This new species is similar to L. primus Tang and Li, 2009, but can be separated by: the large, distally bifurcated ramus of RTA (palm-shaped, not bifurcated in L. primus) and the slender copulatory ducts (short in L. primus). Description. Male (holotype measured): Total length 3.80. Prosoma length 1.40, width 1.45; opisthosoma length 2.60, width 1.20. Prosoma yellow with setae sparsely. Eye tubercles grayish black. Eye measurements: AME 0.06; ALE 0.11; PME 0.06; PLE 0.09; AME–AME 0.14; AME–ALE 0.12; PME–PME 0.11; PME–PLE 0.29. MOA length 0.34 with front width 0.24 and back width 0.22. Chelicerae, gnathocoxae, labium and sternum yellow. Legs yellow, femora and tibiae of I, II red distally. Leg measurements: I: 8.40 (2.50, 3.00, 1.90, 1.00); II: 8.45 (2.50, 2.95, 2.00, 1.00); III: 3.65 (1.20, 1.25, 0.70, 0.50); IV: 4.20 (1.40, 1.40, 0.80, 0.60). Leg formula: 2143. Opisthosoma dorsally yellow with slivery white spots. Palp (Figs 13 B–D, 15 A–B). VTA strongly sclerotized; RTA large, with a small ramus digitiform, the large ramus bifurcated distally; tegulum swollen without apophysis; embolus slender. Female (one of the paratypes measured): Total length 4.40. Prosoma 1.80 long, 1.50 wide; opisthosoma 2.80 long, 1.40 wide. Dorsal shield of prosoma yellowish green, head area with sparse setae. Eye measurements: AME 0.06; ALE 0.10; PME 0.05; PLE 0.09; AME–AME 0.18; AME–ALE 0.18; PME–PME 0.26; PME–PLE 0.38. MOA length 0.28 with front width 0.28 and back width 0.36. Chelicerae, gnathocoxae, labium and sternum yellow. Legs yellow with spines. Leg measurements: I: 6.10 (1.80, 2.20, 1.40, 0.70); II: 6.20 (1.90, 2.20, 1.40, 0.70); III: 3.30 (1.00, 1.20, 0.60, 0.50); IV: 3.80 (1.30, 1.30, 0.70, 0.50), leg formula: 2143. Opisthosoma dorsally yellowish with slivery spots. Epigynum (Figs 14 B–C, 15 C–D). Epigynum light yellow, with an anteriorly situated hood and a pair of lateral grooves; copulatory openings posteriorly situated; copulatory ducts slender, twisted, translucent anteriorly; spermathecae small, globular. Variation. Total length: ♀ 4.40–4.50 (n=2). Distribution. China (Yunnan).Published as part of Tang, Guo & Li, Shuqiang, 2010, Crab spiders from Xishuangbanna, Yunnan Province, China (Araneae, Thomisidae) 2703, pp. 1-105 in Zootaxa 2703 on page 2
An untargeted metabolomics investigation of milk from dairy cows with clinical mastitis by 1H-NMR
Get PDFMastitis is one of the diseases with the highest incidence in dairy cows, causing huge economic losses to the dairy industry all over the world. The aim of the study was to characterize mastitic milk metabolome through untargeted nuclear magnetic resonance spectroscopy (1H-NMR). Taking advantage of the high reproducibility of 1H-NMR, we had the opportunity to provide quantitative information for all the metabolites identified. Fifty-four molecules were characterized, sorted mainly into the chemical groups, namely amino acids, peptides and analogues, carbohydrates and derivates, organic acids and derivates, nucleosides, nucleotides and analogues. Combined with serum metabolomic investigations, several pathways were addressed to explain the mechanisms of milk metabolome variation affected by clinical mastitis, such as tricarboxylic acid cycle (TCA cycle) and phenylalanine, tyrosine and tryptophan biosynthesis. These results provide a further understanding of milk metabolome altered by clinical mastitis, which can be used as a reference for the further milk metabolome investigations
Nuclear Proteins of the Bovine Esophageal Epithelium:II. the NuMA Gene Gives Rise to Multiple mRNAs and Gene Products Reactive with Monoclonal Antibody W1
No full textGabosines L, N and O: New carba-sugars from Streptomyces with DNA-binding properties
No full textIn addition to the known gabosines A (4), B (5) and C (6), three new gabosines L (1), N (2) and O (3) were detected by chemical screening as secondary metabolites of Strep- tomyces (strains GT 041230, GT 051024 and S 1096). The constitutions of 1, 2 and 3 were established by spectroscopic techniques and derivatization reactions. The absolute stereochemistry of 1 and 2 was determined by Helmchen's method and has been verified in the case of gabosine N (2) by X-ray analysis. The DNA-binding properties of the gabosines were investigated and analyzed by binding studies using a recently developed thin-layer chromatography technique (bimolecular-chemical screening)
Gabosines L, N and O: New carba-sugars from Streptomyces with DNA-binding properties
No full textIn addition to the known gabosines A (4), B (5) and C (6), three new gabosines L (1), N (2) and O (3) were detected by chemical screening as secondary metabolites of Strep- tomyces (strains GT 041230, GT 051024 and S 1096). The constitutions of 1, 2 and 3 were established by spectroscopic techniques and derivatization reactions. The absolute stereochemistry of 1 and 2 was determined by Helmchen's method and has been verified in the case of gabosine N (2) by X-ray analysis. The DNA-binding properties of the gabosines were investigated and analyzed by binding studies using a recently developed thin-layer chromatography technique (bimolecular-chemical screening)
Lp(.),lambda(.) regularity for fully nonlinear elliptic equations
No full textWe establish the variable exponent Morrey spaces L-p(.),L-lambda(.) estimate to the Dirichlet problem for fully nonlinear elliptic equations on a C-1,C-1 bounded domain for variable exponents p(.) and lambda(.). (C) 2016 Elsevier Ltd. All rights reserved.NNSF of China [11271024, 11571289]SCI(E)ARTICLE117-12914
Rejoinder for “Hsu C, et al. survival-weighted health profile for long-term survivors of acute myelogenous leukemia”.
No full textInstitutions, innovation and performance in Guangdong firms: The role of entrepreneurial orientation and environmental turbulence
No full textThis study combines the institution-based perspective and the innovation systems literature to examine the role of public policies in the entrepreneurship-innovation-performance relationships. It does so by presupposing a key mediating role for entrepreneurial orientation and by introducing environmental turbulence as a moderator. Data from a sample of 166 Guangdong Province manufacturing firms are used to test hypotheses, which distinguish between institutional pressures and incentives. Findings reveal the lesser relevance of institutional pressures whereas a more virtuous relationship between institutional incentives, entrepreneurial orientation and both innovation and overall performance emerges, especially when environmental turbulence increases. This is particularly clear with reference to firms' overall performance. These findings are of theoretical and practical relevance for the study of the effects of public policies as regards their nature and the policy design mix
Vacrothele palpator Tang & Wu & Zhao & Yang 2022, comb. nov.
No full textVacrothele palpator (Pocock, 1901), comb. nov. Figs 11–12, 16B, 17D, 18D, 19 Macrothele palpator Pocock, 1901: 213, pl. 21, fig. 4; Hu & Li, 1986: 11 (1), figs 8–11; Feng, 1990: 27 (2), figs 1–5; Song, Zhu & Chen, 1999: 39, figs 17 D–F; Yin et al., 2012: 142, fig. Type material. Holotype, male, 60 miles uphill from Ningbo, China. Coll. by P. W. Bassett-Smith, Esq, Surgeon R. N. Paratypes: male, female, from Hongkong, coll. by J. C. Bowring; Da Lan San, 60 miles uphill from Ningbo, coll. by P. W. Bassett-Smith, Esq, Surgeon R. N. Description: See Yin et al (2012). Examined material. 1♀, Longkangtou, Bataishan scenic spot, Meitan City, Guizhou Province, 16 August, 2020, coll. by Y. N. Tang Y. M. You & L. J. Ding. 4♂, 11♀, Pu County, Meitan City, Guizhou Province, N27º54′1″, E107º38′22″, 760m, 14 October 2021, coll. by Z. Z. Yang & Y. Y. Wu. 1♂, 1♀, Shawen browse Road, Yuanzhou District, Yichun City, Jiangxi Province, 28 February 2020, coll. by Y. N. Tang. 1♀, Yuanshan Park, Yichun City, Jiangxi Province, 1 January 2020, coll. by Y. N. Tang. 1♂, Tumenguan, Sangxi town, Yang County, Shanxi Province, China, E107º55′31.4″, N33º17′6.65′′, 20 October 2020, coll. by L. Y. Wang. 1♀, Muyu Town, Shennongjia, Hebei Province, E110º28′43.05″, N31º23′46.45″, 25 October 2020, coll. by L. Y. Wang. All materials of examined species are deposited in DUIER. Distribution: China: (Hong Kong, Zhejiang, Guizhou, Hubei, Jiangxi).Published as part of Tang, Ya-Ni, Wu, Ya-Ying, Zhao, Yu & Yang, Zi-Zhong, 2022, Description of a new genus and two new species of the funnel-web mygalomorph (Araneae: Mygalomorphae: Macrothelidae) from China with notes on taxonomic amendments, pp. 513-535 in Zootaxa 5125 (5) on pages 518-519, DOI: 10.11646/zootaxa.5125.5.3, http://zenodo.org/record/645731
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