119,168 research outputs found
Validity of the Novel Taiwan Lymphoscintigraphy Staging and Correlation of Cheng Lymphedema Grading for Unilateral Extremity Lymphedema
No full textOBJECTIVE: The aim was to validate the new Taiwan Lymphoscintigraphy Staging, correlate it with Cheng Lymphedema Grading (CLG) and evaluate the treatment outcomes of unilateral extremity lymphedema. BACKGROUND: No consensus has been reached for diagnosis and staging for patients with lymphedema among medical specialties. METHODS: We included 285 patients with unilateral extremity lymphedema using lymphoscintigraphy. Lymphoscintigraphy was correlated to clinical symptoms and signs, and classified into normal lymphatic drainage, partial obstruction, and total obstruction. Inter- and intraobserver reliability of Taiwan Lymphoscintigraphy Staging, correlation between Taiwan Lymphoscintigraphy Staging and clinical findings were conducted. Patients were categorized in "surgical" (n = 154) or "nonsurgical" (n = 131) groups for outcome evaluation. RESULTS: Lymphoscintigraphy found 11 patients (3.9%) with normal lymphatic drainage, 128 (44.9%) with partial obstruction, and 146 (51.2%) with total obstruction. Taiwan Lymphoscintigraphy Staging showed high interobserver agreement [intraclass correlation coefficient: 0.89 (95% confidence interval, 0.82-0.94)], and significantly correlated to computed tomography volumetric difference (r = 0.66, P < 0.001) and CLG [intraclass correlation coefficient: 0.79 (95% confidence interval 0.72-0.84)]. At a mean follow-up of 31.2 ± 2.9 months, significant improvement in the circumferential difference (from 23.9% ± 17.6% to 14.6% ± 11.1%; P = 0.03) with a mean circumferential reduction rate of 40.4% ± 4.5% was found in surgical group. At a mean follow-up of 26.6 ± 8.7 months, the nonsurgical group had increase of mean circumferential difference from 24.0% ± 17.2% to 25.3% ± 19.0% (P = 0.09), with a mean circumferential reduction rate was -1.9% ± 13.0%. CONCLUSIONS: The Taiwan Lymphoscintigraphy Staging is a reliable diagnostic tool, correlated with clinical findings and CLG, aiding in the selection of the appropriate treatment to achieve favorable long-term outcomes in unilateral extremity lymphedema
Acer sinopurpurascens W. C. Cheng
No full textAcer sinopurpurascens W.C.Cheng in Chien & Cheng (1931: 62). Type:— CHINA. Zhejiang [Chekiang]: Western Tian Mu Shan [Tienmu-shan], elev. 1200–1300 m, 23 April 1931, W. C. Cheng 2424 (PE00023445, lectotype designated by Lin et al. 2009; isolectotypes A00245405, CQNM0015724, IBSC0002074, K000640863, NAS00071819, PE00023443, PE00023446, PE00023448). Remaining syntypes: CHINA. Zhejiang: Western Tianmushan, elev. ca. 845, 16 August 1929, S. S. Chien 845 (A00050488, CQNM0015723, NAS00071817, NAS00071818, NY00337718, PE00023444, K000640862); elev. 1200–1300 m, 23 April 1931, W. C. Cheng 2429 (A00245404, IBSC0002073, K000640864, LBG00076624, PE00023447). Note: —In the protologue, Chien & Cheng (1931) designated three gatherings as types of flowering, staminate and pistillate, respectively. Lin et al. (2009) chose a duplicate of staminate at PE (00023445) as the lectotype. The isolectotypes and remaining syntypes are listed above.Published as part of Chen, Feng & He, Hai, 2022, The historical relics in Chongqing Natural History Museum: An annotated checklist of original materials for 37 names of Chinese seed plants, pp. 38-52 in Phytotaxa 530 (1) on page 46, DOI: 10.11646/phytotaxa.530.1.3, http://zenodo.org/record/582393
Litsea auriculata S. S. Chien & W. C. Cheng 1931
No full textLitsea auriculata S.S.Chien & W.C.Cheng (1931: 59). Type:— CHINA. Zhejiang [Chekiang]: Western Tian Mu Shan [W. Tien-mushan], elev. ca. 1100 m, 8 August 1929, S. S. Chien 601 (PE00028512, lectotype designated by Lin et al. 2016; isolectotypes A00041694, CQNM0015781, K000793089, NF2000700, NAS00070861, PE00028938, PE00434507). Remaining syntypes: CHINA. Zhejiang: Western Tian Mu Shan, elev. 800–1200 m, 17 April 1931, W. C. Cheng 2348 (A00041692, CQNM0015783, IBSC000227, K000793088, NF2000695, NY00355220, PE00028503, PE00028504, PE00028505, PE00028506) and W. C. Cheng 2349 (A00041693, CQNM0015784, IBSC0000229, K000793087, LBG00072037, NAS00070859, NAS00070860, NF2000694, NY00355221, PE00028508, PE00028509, PE00028510, PE00028511). Note:— In the protologue, Chien & Cheng (1931) designated S.S. Chien 601 (fruiting), W.C. Cheng 2348 (pistillate) and W.C. Cheng 2349 (staminate) deposited at the herbarium of Biological Laboratory of the Science Society of China as the type, and all of them are syntypes according to Art.9.6 (Turland et al. 2018). Lin et al. (2016) designated PE00028512 as the lectotype. The available isolectotypes and remaining syntypes are traced at the above listed herbaria.Published as part of Chen, Feng & He, Hai, 2022, The historical relics in Chongqing Natural History Museum: An annotated checklist of original materials for 37 names of Chinese seed plants, pp. 38-52 in Phytotaxa 530 (1) on page 42, DOI: 10.11646/phytotaxa.530.1.3, http://zenodo.org/record/582393
Fagus chienii W. C. Cheng 1935
No full text<p> <i>Fagus chienii</i> W.C.Cheng (1935: 70).</p> <p> Type:— CHINA. Sichuan [Szechuan]: W. Pingwu Xian [Pingwu hsien], elev. ca. 1300 m, 17 August 1931, <i>W. C. Cheng 2903</i> (lectotype designated here, NAS00070338; isolectotypes A00033870, CQNM0017387, E00098603, IBSC0001170, K000832761, MICH1109337, NAS00070339, NY00248568, PE00022177, PE00022178, PE00022179, PE00022180, PE00022181, PE00022182, PE00022180, SYS00054972, US 00409518).</p> <p> <b>Note</b>:—In the protologue, Cheng indicated <i>W.C. Cheng 2903</i> as the type, but he did not specify the herbarium where the type is deposited. In searching in various herbaria, 18 duplicates were traced and all of them are syntypes since no holotype was designated under Art. 9.6 (Turland <i>et al</i>. 2018). Most duplicates bear cupules and the identification annotation of W. C. Cheng and are well preserved. NAS00070338 is designated here as the lectotype for the reason Cheng used to work in NAS. In the protologue, Cheng (1935) stated the locality of the type at a place near “Yao-erpa” in West of Pingwu Xian; however, none of the duplicates with a label bearing this locality, and it is also uncertain whether “Pingwuhsien” means the present Pingwu Town. For efforts to trace this type locality has not been successful, the identity of this tree species is still uncertain (e.g. Huang <i>et al</i>. 1999).</p>Published as part of <i>Chen, Feng & He, Hai, 2022, The historical relics in Chongqing Natural History Museum: An annotated checklist of original materials for 37 names of Chinese seed plants, pp. 38-52 in Phytotaxa 530 (1)</i> on page 40, DOI: 10.11646/phytotaxa.530.1.3, <a href="http://zenodo.org/record/5823939">http://zenodo.org/record/5823939</a>
Source Characterization Of Microearthquakes Induced By Hydraulic Fracturing With Empirical Green's Function
Full text linkIn this paper, we retrieved relative source time functions (RSTF) and estimated the
source parameters for microearthquakes (M= -1.9 to -2.6) induced by hydraulic injection
at Fenton Hill, New Mexico, using an empirical Green's function (EGF) method.
Seismic waveform of a small event in seismic doublets or multiplets (Gelle and Meuller,
1980), defined as co-located events with similar focal mechanisms, within a hydraulic
fracture zone, is treated as the EGF and is deconvolved from that of a larger event in the doublets or multiplets to retrieve the relative source time function. Time domain analysis of the RSTFs reveals the source complexity of the induced microearthquakes. The
azimuthal variation of the RSTF indicates that the rupture propagates to the northwest,
which is consistent with the growth direction of the hydraulic fracture zone determined
by Li and Cheng (1995) with a seismicity temporal-spatial distribution pattern. The
source duration of the induced events ranges from 2 to 8 ms and the source radii are
estimated to be 4 to 12 meters. Values of stress drops are from 1 to 19 bars. Significant
variation of the stress drops may reflect the heterogeneity of the stress field in the
hydraulic fracture zone and its vicinity and indicate that the stress field heterogeneity
extends down to a few meters.Massachusetts Institute of Technology. Borehole Acoustics and Logging ConsortiumUnited States. Dept. of Energy (Contract DE-FG02-86ER13636
Effects of word concreteness and presentation rate on forward and backward paired-associate recall.
No full textCheilosia distincta Barkalov & Cheng 1998
No full textCheilosia distincta Barkalov & Cheng, 1998 Figs 15–16 Cheilosia (Montanocheila) distincta Barkalov & Cheng, 1998: 313. Type locality: China: Sichuan: Xiangcheng (holotype, ♂, ZICAS). Cheilosia (Montanocheila) distincta – Barkalov & Cheng 2004: 297. Differential diagnosis Cheilosia (M.) distincta is among the Nepalese species closest to C. (M.) erratica. Cheilosia erratica differs by having tergite III entirely yellowish pilose, while C. distincta has tergite III black pilose. Material examined NEPAL • 1 ♂; Solukhumbu, Shibuche; 27°34′ N, 86°46′ E; 2700– 2300 m a.s.l.; 18 May 1997; M. Hauser leg. [524]; CSCA • 1 ♀; Ramechap Mohabir Khola E of Shivalaya; 2500–2600 m a.s.l.; 27°35′ N, 86°19′ E; 6–7 May 97; Hauser leg.; CSCA • 1 ♀; Westnepal, Distr. Humla, Simikot, 12 km S of Raya; 29°52′29″ N, 81°51′57″ E; 2400 m a.s.l.; 8 Jul. 2001; F. Creutzburg leg.; IBSJW / NME • 3 ♀♀; Kathmandu S, Phulchoki; 27°35′09″ N, 85°22′50″ E; ca 1800 m a.s.l.; 18 Jul. 2001; F. Creutzburg leg.; IBSJW / NME • 1 ♀; Prov. Karnali, Gothigaon, Flussufer; 29°14.55′ N, 82°18.48′ E; 2600 m a.s.l.; 14 Jun. 1997; J. Weipert leg.; IBSJW / NME. Taxonomic remark The description of Cheilosia (M.) distincta Barkalov & Cheng, 1998 agrees with the description of Cheilosia hirticincta Brunetti, 1915 in almost all described characteristics. The studied specimens from Nepal, one male and six females, have basoflagellomere reddish-brown with light greyish dusting and blackish dorsal margin (described as black with greyish dusting in Cheilosia distincta and C. hirticincta). The NHM (London) has six male specimens identified as Cheilosia hirticincta Brunetti. The structure of the male genitalia of Cheilosia (M.) distincta and C. hirticincta is very similar. However, we have not been able to locate and study the type material of C. hirticincta to evaluate a possible synonymy of C. distincta. Distribution China, Nepal.Published as part of Barkalov, Anatolij V. & Ståhls, Gunilla, 2022, Cheilosia (Diptera, Syrphidae: Rhingiini) of Nepal with descriptions of 29 new species, pp. 1-127 in European Journal of Taxonomy 829 (1) on pages 34-37, DOI: 10.5852/ejt.2022.829.1863, http://zenodo.org/record/683993
Lesteva concava Cheng & Li & Peng 2019, new species
No full textLesteva (s. str.) concava, Cheng, Li & Peng, new species (Figs 2B, 3 G–H, 5D–F, 24) Type material (64 exs). Holotype: CHINA: ♂: ‘ China: Zhejiang Prov., Lin’an City (临安市), Mt. Qingliang (清 凉峰), 1050–1080 m, 8–10.v.2005, Zhu & Li leg. ’ / HOLOTYPE (red), L. concava sp. nov., det. Cheng, Li & Peng, 2019, SNUC. Paratypes: CHINA: 17 ♂♂, 34 ♀♀: same label data as holotype / PARATYPE (yellow), L. concava sp. nov., det. Cheng, Li & Peng, 2019, SNUC; 1 ♀: ‘ China: Anhui Prov., Anqing City (安庆市), Qianshan County (潜山县), Mt. Tainzhu (天柱山), 1150–1250 m, 25.iv.2005, Hu & Tang leg. ’ / PARATYPE (yellow), L. concava sp. nov., det. Cheng, Li & Peng, 2019, SNUC; 1 ♀: ‘ China: Anhui Prov., Chizhou City (池州市), Shitai County (石台县), Guniujiang N. R. (牯牛降自然保护区), alt. 300 m, 27.iv.2005, Hu & Tang leg. ’ / PARATYPE (yellow), L. concava sp. nov., det. Cheng, Li & Peng, 2019, SNUC; 1 ♀: ‘ China: Zhejiang Prov., Hangzhou City (杭州 市), Anji County (安吉 县), Mt. Longwang (龙王 山), 300–500 m, 24.iv.2004, Jing-Wen Zhu leg. ’ / PARATYPE (yellow), L. concava sp. nov., det. Cheng, Li & Peng, 2019, SNUC; 2 ♀♀: ‘ China: Zhejiang Prov., Hangzhou City (杭州市), Anji County (安吉县), Mt. Longwang (龙王山), 250–550 m, 24.iv.2006, Jin-Wen Li leg. ’ / PARATYPE (yellow), L. concava sp. nov., det. Cheng, Li & Peng, 2019, SNUC; 2 ♀♀: ‘ China: Zhejiang Prov., Hangzhou City (杭州市), Anji County (安吉县), Mt. Longwang (龙王山), 1050–1200 m, 15.v.2013, Chen & Pan leg. ’ / PARATYPE (yellow), L. concava sp. nov., det. Cheng, Li & Peng, 2019, SNUC; 1 ♀: ‘ China: Zhejiang Prov., Lin’an City (临安市), Mt. Tianmu (天目山), 800–1150 m, 2.v.2001, Jiao-Yao Hu leg. ’ / PARATYPE (yellow), L. concava sp. nov., det. Cheng, Li & Peng, 2019, SNUC; 1 ♀: ‘ China: Zhejiang Prov., Lin’an City (临安市), Mt. Tianmu, (天目山), 800–1150 m, 31.v.2006, Hu & Tang leg. ’ / PARATYPE (yellow), L. concava sp. nov., det. Cheng, Li & Peng, 2019, SNUC; 1 ♂: ‘ China: Zhejiang Prov., Lin’an City (临安市), Mt. Tianmu, (天目山), 830–900 m, 31.v.2010, Wang, Xu & Zhu leg. ’ / PARATYPE (yellow), L. concava sp. nov., det. Cheng, Li & Peng, 2019, SNUC; 1 ♂, 1 ♀: ‘ China: Zhejiang Prov., Quzhou City (衢州市), Jingning County (景宁 县), Baiyunlinqu (白云林区), 1100–1270 m, 07.v.2012, Jian-Qing Zhu leg. ’ / PARATYPE (yellow), L. concava sp. nov., det. Cheng, Li & Peng, 2019, SNUC. Description. Measurements (in mm) and ratios: BL 3.04–3.29; FL 2.36–2.48; HL 0.47–0.50; HW 0.59–0.62; PL 0.56–0.59; PW 0.65–0.68; EL 1.27–1.33; EW 1.18–1.21; HL/HW 0.75–0.79; PL/PW 0.86–0.90; EL/EW 1.07–1.11; HW/PW 0.90–0.95; PL/EL 0.44–0.46; AnL 1.39–1.42; AeL 0.46–0.50. Habitus as in Fig. 2B. Reddish brown, head usually darker, blackish brown; mouthparts fuscous brown; antennae yellowish brown; elytra with small subtriangular yellow maculae near middle; legs reddish brown, except of paler apex of tibiae and tarsi. Pubescence of body pale, evident and recumbent. Head subtriangular, coarsely and sparsely punctate, widest across eyes; eyes prominent, 1.86 times longer than temples; ocelli distinct, distance between ocelli 1.75 times as long as distance between ocellus and posterior margin of eye. Antennae elongate, relative lengths of the antennomeres I–XI: 1.54: 1: 1: 1: 1: 1: 1.15: 1.15: 1.15: 1.15: 1.77. Pronotum subcordate, moderately convex, widest near anterior third; lateral margins arcuate at anterior twothirds and nearly straight at posterior third; punctation and pubescence as that on head; disc with shallow U-shaped depression. Scutellum subtriangular, surface with fine punctation and pubescence. Elytra subtrapezoidal, gradually dilated posteriorly, posterior angles broadly rounded; punctation and pubescence distinctly finer and sparser than those on pronotum. Abdomen broad, widest at segment IV (first visible abdominal segment), then distinctly narrowed posteriorly. Tergites with dense, fine punctation and decumbent pubescence, devoid of microsculpture; middle of the tergites IV and V with one pair of tomentose patches, but patches on tergite V smaller and less transverse. Male. Apical margin of the tergite VIII (Fig. 3G) broadly concave; sternite VIII (Fig. 3H) transverse, apical margin weakly concave; median lobe of the aedeagus (Figs 5 D–F) slightly longer than parameres; parameres somewhat asymmetrical, each slightly narrowed in anterior half, with three long apical setae; internal sac without sclerotized spines and without distinct dark membranous structures. Female. Abdominal sternite VIII without concavity apically. In other morphological characters similar with males. Comparative notes. Lesteva concava is closest to L. cooteri Rougemont in sharing similar body size, and punctation and pubescence of the head and pronotum. These two species can be readily separated by the different coloration of the body, and especially the narrower aedeagus with longer median lobe and narrower and longer parameres in L. concava. For illustrations of L. cooteri see Figs 6A, 8 A–B, 9A–C and Rougemont (2000: figs 1, 13). Distribution and nature history. China: Anhui, Zhejiang (Fig. 24). Some specimens were sifted from leaf litter near a stream in mixed deciduous forests at Mt. Tianzhu, Anhui. Etymology. The new specific epithet refers to the broadly concave apical margin of the male tergite VIII.Published as part of Cheng, Zhi-Fei, Li, Li-Zhen & Peng, Zhong, 2019, New species and new records of Lesteva Latreille, 1797 (Coleoptera Staphylinidae: Omaliinae) from China, pp. 1-39 in Zootaxa 4560 (1) on pages 5-9, DOI: 10.11646/zootaxa.4560.1.1, http://zenodo.org/record/262725
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