86,220 research outputs found
Pediobius susinellae Yang & Cao 2015
No full text22. Pediobius susinellae Yang & Cao, 2015 Pediobius susinellae Yang & Cao, in Yang et al. 2015: 122 –123; ♀. Holotype ♀, CAFB, examined. Diagnosis. Scutellum with a very narrow smooth median band, and striate beside this smooth median band. Dorsellum short, and with apex protruding medially. Callus with 6 setae. Material examined. Holotype ♀, CHINA, Shaanxi, Yangling, 10.VIII.1997, coll. Meng-Lou Li & Xin-Rong Guo (CAFB), ex. Leucoptera susinella Herrich-Schäffer. Paratype 1♀, same data as the holotype. Biology. Pediobius susinellae is an endoparasitoid. All type specimens were reared from the pupae of Leucoptera susinella Herrich-Schäffer (Lepidoptera: Lyonetiidae). Distribution in China. Shaanxi. Remarks. Based on observations of the type specimens of P. susinellae, it is very similar to P. pyrgo, as aslo noted by Yang et al. (2015). Both species run to the same couplet in the present key. It is treated as a separate species before we get additional evidence. However, it requires additional freshly reared materials from Leucoptera susinella to test the validation of P. susinellae and its relationships with P. pyrgo and other members in the pyrgo - group.Published as part of Cao, Huan-Xi, Salle, John La & Zhu, Chao-Dong, 2017, Chinese species of Pediobius Walker (Hymenoptera: Eulophidae), pp. 1-71 in Zootaxa 4240 (1) on page 46, DOI: 10.5281/zenodo.37575
Hopf bifurcation analysis in a modified R&D model with delay
No full textfirst_pageDownload PDFsettingsOrder Article Reprints Open AccessArticle Hopf Bifurcation Analysis in a Modified R&D Model with Delay by Yang Cao 1,Ferrara Massimiliano 2,3,4,*ORCID,Gangemi Mariangela 2,4ORCID andGuerrini Luca 4,5ORCID 1 School of Cyber Science and Engineering, Southeast University, Nanjing 210096, China 2 Department of Law, Economics and Human Sciences, “Mediterranea” University of Reggio Calabria, Via dell’Università, 25, 89124 Reggio Calabria, Italy 3 ICRIOS—The Invernizzi Centre for Research in Innovation, Organization, Strategy and Entrepreneurship, Department of Management and Technology, Bocconi University, Via Sarfatti, 25, 20100 Milano, Italy 4 Decision Lab, “Mediterranea” University of Reggio Calabria, Via dell’Università, 25, 89124 Reggio Calabria, Italy 5 Department of Management, Polytechnic University of Marche, Piazzale Martelli 8, 60121 Ancona, Italy * Author to whom correspondence should be addressed. Axioms 2022, 11(4), 148; https://doi.org/10.3390/axioms11040148 Submission received: 28 November 2021 / Revised: 20 March 2022 / Accepted: 21 March 2022 / Published: 24 March 2022 (This article belongs to the Special Issue Dynamical Systems: Advances in Theory and Applications) Downloadkeyboard_arrow_down Browse Figures Versions Notes Abstract We consider a duopoly game model of R&D (research and development) rivalry between two high-tech firms with time delay, in which a monopoly sector with R&D spillover is studied using a mixture of game theory and nonlinear dynamics theory. The local asymptotic stability of the equilibrium point is studied by analyzing the corresponding characteristic equation. It is found that the delay can lead the system dynamic behavior to exhibit stability switches and Hopf bifurcations appear
Anufrievia adaucta Cao & Yang & Lin & Zhang 2018, sp. nov.
No full text1. Anufrievia adaucta Cao & Zhang sp. nov. (Figs 1, 25a) Vertex, face and anterior margin of pronotum testaceous, central and hind part of pronotum and mesonotum brown, eyes and basal triangles of mesonotum black. Vertex with pair of dark patches at transition to face, region between patches and midline of face light orange. Fore wing light brown, brochosome field and veins brown. Male genitalia: Pygofer with about 2 macrosetae at cephalo-ventral angle of lobe (Fig. 1b), dorsal appendage with small tooth subapically and subbasally (Figs 1c, d). Style with apical tooth almost as long as subapical tooth (Fig. 1g). Aedeagus enlarged, shaft narrow and long, almost straight, apical processes equal in length; preatrial process rudimentary, papilliform; gonopore subapical (Figs 1i –k). Measurement: Male 2.95–3.05mm. Material examined: Holotype: ♂ [NWAFU], CHINA: Fujian Prov., Mt. Wuyi, Tongmu, 03.viii.2009, coll. Cao Yanghui. Paratype: 1♂ [NWAFU], same data as holotype. Remarks: Distinguished from all other species of Anufrievia by extremely enlarged aedeagus and rudimentary preatrial process. Etymology: The specific epithet is derived from the Latin word “ adauctus ”, referring to the enlarged aedeagus.Published as part of Cao, Yanghui, Yang, Meixia, Lin, Shuanghu & Zhang, Yalin, 2018, Review of the leafhopper genus Anufrievia Dworakowska (Hemiptera: Cicadellidae: Typhlocybinae: Erythroneurini), pp. 203-232 in Zootaxa 4446 (2) on page 205, DOI: 10.11646/zootaxa.4446.2.2, http://zenodo.org/record/144409
Residential self-selection in the relationship between the built environment and travel behavior: A literature review and research agenda
No full textThis chapter gives an overview of the current debates on residential self-selection and presents a related research agenda. Here, we define residential self-selection as “the tendency of people to choose residential locations based on their travel abilities, needs and preferences.” Debates relate to theory/causalities (including the role of attitudes), research methods, empirical findings (including the magnitude of the importance of residential self-selection for the influence of the built environment on travel behavior and the dominance of OECD (Organization for Economic Co-operation and Development) countries), and the implications for planning. The main contribution is in translating the current debates into a research agenda. Challenging avenues for future research are partly inspired by these debates, and include changing attitudes, qualitative research, multiple causal structures, extending the scope to other areas than residential areas, the existence of threshold values for the strength of preferences to be important for residential self-selection, the role of perceived accessibility, non-OECD countries, and planning implications.Green Open Access added to TU Delft Institutional Repository ‘You share, we take care!’ – Taverne project https://www.openaccess.nl/en/you-share-we-take-care Otherwise as indicated in the copyright section: the publisher is the copyright holder of this work and the author uses the Dutch legislation to make this work public.Transport and Logistic
Kapsa (Rigida) Cao & Zhang
No full textKey to males of Kapsa (Rigida) Cao & Zhang sgen. n. 1. Anal tube appendage rudimentary, small, not hooked at apex...................... K. apicispina Yang & Zhang sp. nov. - Anal tube appendage well developed, hooked apically (Figs 5 b, 6 b, 8 b, 9 b, 10 e, 11 c, 12 c, 13 c)........................ 2 2. Anal tube appendage curved cephalad in larteral view................................ K. maculata Sohi & Mann, 1992 - Anal tube appendage curved caudad in lateral view (Figs 5 b, 6 b, 8 b, 9 b, 10 e, 11 c, 12 c, 13 c)........................... 3 3. Aedeagus without ventral process near base of shaft (Figs 5 h, 6g, 11 i, 13g)........................................ 4 - Aedeagus with unpaired ventral process near base of shaft (Figs 8 h, 9g, 10 j, 12 i)................................... 7 4. Aedeagal shaft with ventral process near apex (Figs 6 g, 13g)................................................... 5 - Aedeagal shaft without process (Figs 5 h, 11 i)............................................................... 6 5. Paramere forked apically, with apical and basal branch, aedeagal shaft with small thornlike process ventro-apically (Fig. 6 e, g)...................................................................... K. aculeiformis Cao & Zhang sp. nov. - Paramere bifurcated apically, with dorsal and ventral branch, aedeagal shaft with large serrated protrusion ventro-medially (Fig. 13 e, g)................................................................ K. serrata Cao & Zhang sp. nov. 6. Apex of paramere straight, aedeagal shaft expanded in lateral view (Fig. 11 f, i)......... K. imminuta Yang & Zhang sp. nov. - Apex of paramere sinuate, aedeagal shaft not expanded in lateral view (Figs 5 e, f, h).......... K. alba Dworakowska, 1981 7. Ventral process not extended to midlength of aedeagal shaft (Figs 8 h, 9g)......................................... 8 - Ventral process surpassing midlength of aedeagal shaft (Figs 10 j, 12 i)........................................... 10 8. Paramere footlike apically, heel expanded, ventral processes of aedeagus rounded in lateral view (Fig. 9 e, g)...................................................................................... K. explanata Cao & Zhang sp. nov. - Paramere with second extension apically, ventral processes of aedeagus pointed in lateral view (Fig. 8 h, i)............... 9 9. Aedeagal shaft expanded in lateral view, almost straight............................... K. minuta Dworakowska, 1994 - Aedeagal shaft not expanded in lateral view, obviously curved ventrad (Fig. 8 h)........... K. brevis Cao & Zhang sp. nov. 10. Ventral process of aedeagus with broadened and concave apex in caudal view....... K. borealis Dworakowska & Sohi, 1978 - Ventral process of aedeagus pointed apically in caudal view (Figs 10 k, 12 j)....................................... 11 11. Paramere forked apically (Fig. 10 h).............................................. K. furcata Cao & Zhang sp. nov. - Paramere not forked apically (Fig. 12 g)................................................................... 12 12. Aedeagus with base of ventral process broader than that of shaft in lateral view (Fig. 12 i).................................................................................................. K. megaprocessa Cao & Zhang sp. nov. - Aedeagus with base of ventral process slightly narrower than that of shaft in lateral view......................................................................................... K. simlensis Dworakowska, Nagaich & Singh, 1978Published as part of Yang, Meixia, Cao, Yanghui & Zhang, Yalin, 2013, Taxonomic study of the genus Kapsa Dworakowska with a new subgenus, and new combinations and records for Tautoneura Anufriev (Hemiptera: Cicadellidae: Typhlocybinae: Erythroneurini), pp. 117-142 in Zootaxa 3630 (1) on page 128, DOI: 10.11646/zootaxa.3630.1.4, http://zenodo.org/record/22287
Alnetoidia (Alnetoidia) gracilis Cao, Yang & Zhang, 2016, sp. nov.
No full textAlnetoidia (Alnetoidia) gracilis sp. nov. (Fig. 4) Description. Body yellowish, without markings. Abdominal apodemes (Fig. 4 a) extended to hind margin of 4th sternite. Pygofer side (Fig. 4 b) with several rigid setae on posterior margin; dorsal appendage sinuated; ventral appendage slim, extended from ventral margin of pygofer side. Subgenital plate (Fig. 4 e) with group rigid setae near base, row of marginal microsetae from near base to apex, shorter than the basal ones, with 3 macrosetae subbasally along outer margin. Style (Figs 4 f, g) with apical part footlike. Connective (Fig. 4 h) broad, lateral arms short and broad. Aedeagal shaft (Figs 4 i–l) tubular, curved dorsad, paired basal processes slim and long, the length and thickness slightly varies among individuals, some specimens bearing a small spinelike process on lateral margin; dorsal apodeme large in lateral view, preatrium short; gonopore apical on ventral side. Measurement. Male 3.42mm, female 3.45mm. Material examined. Holotype: ♂, CHINA, Sichuan Prov., Mt. Emei, 950m, 30 x 1999, coll. I. Dworakowska; paratypes: 1♂, 1 xi 1999, other data same as holotype; 1♀, 29 x 1999, other data as holotype; 18♂♂, Sichuan Prov., Ya’an, Hongta Botanic Garden, Pterocarya stenoptera, 12 vii 2010, coll. Cao Yanghui. Host. Pterocarya stenoptera. Remarks. The new species is similar to A. (Alnetoidia) dujuanensis Song & Li, but differs in having the pygofer dorsal appendage shorter, the aedeagal shaft distinctly curved dorsad and the paired basal processes shorter and extended from the dorso-lateral margins of the shaft. Etymology. The specific epithet is derived from the Latin word “ gracilis ”, referring to the slender lateral processes of the aedeagal shaft.Published as part of Cao, Yanghui, Yang, Meixia & Zhang, Yalin, 2016, Review of the leafhopper genus Alnetoidia Dlabola (Hemiptera: Cicadellidae: Typhlocybinae: Erythroneurini) from China, with descriptions of two new species, pp. 573-587 in Zootaxa 4193 (3) on page 579, DOI: 10.11646/zootaxa.4193.3.7, http://zenodo.org/record/16724
Tibetxya Cao & Yang & Shen & Yin 2021, gen. nov.
No full textTibetxya gen. nov. Type species: Tibetxya motuoensis sp. nov. (Fig.1 A–E, Fig. 2 A–H). Diagnosis: The new genus lacking swimming plates at metatibia and metatarsus degenerated is allied to Paraxya Cao, Chen & Yin, 2019, but differs from latter by length of head and pronotum longer than tegmen, tegmen with Sc vein and R vein, length of metatibia 2.3 times length of apical spurs and 8 th segment of antennae not narrow in base. The new genus is also allied to Xya Latreille, 1809, but differs from latter by the metatibia lacking swimming plates. Etymology: The new genus is name Tibet, Tibetxya showing the new genus from Tibet, China.Published as part of Cao, Cheng-Quan, Yang, Kai-Yan, Shen, Zi-Hao & Yin, Zhan, 2021, A new genus and a new species of pygmy mole cricket from China (Orthoptera: Tridactylidae), pp. 91-94 in Zootaxa 5005 (1) on page 91, DOI: 10.11646/zootaxa.5005.1.8, http://zenodo.org/record/514124
Anufrievia triangulata Cao & Yang & Lin & Zhang 2018, sp. nov.
No full text23. Anufrievia triangulata Cao & Zhang sp. nov. (Figs 21, 25u) Ground color testaceous, eyes grey, basal triangles of mesonotum black. Abdominal apodemes broad, extended to middle part of 4th sternite (Fig. 21a). Male genitalia: Pygofer side without macrosetae at cephalo-ventral angle (Fig. 21b); dorsal appendage knifelike, curved ventrad apically, with a small protrusion medially on ventral margin (Fig. 21c). Style triangular apically, apical part curved dorsad (Fig. 21f). Aedeagal shaft slightly curved dorsad, pair of apical processes long, slightly expanded subapically; preatrial process short, not reaching gonopore, apical margin slightly concave in ventral view; gonopore central (Figs. 21h, i). Measurement: Male 2.90mm. Material examined: Holotype: ♂ [QSBG], THAILAND: Kanchanaburi, Khuean Srinagarindra NP, Huai Mae Kamint / Tourist center, 14°38.123'N, 98°59.657'E, Malaise trap, 9–16.x.2008, coll. Somboon & Daorueng. Remarks: Distinguished from all the other species by triangular apical part of style, shortened aedeagal shaft and preatrial process. Etymology: The specific epithet is derived from the Latin word “ triangulus ”, referring to the shape of style apex.Published as part of Cao, Yanghui, Yang, Meixia, Lin, Shuanghu & Zhang, Yalin, 2018, Review of the leafhopper genus Anufrievia Dworakowska (Hemiptera: Cicadellidae: Typhlocybinae: Erythroneurini), pp. 203-232 in Zootaxa 4446 (2) on pages 227-228, DOI: 10.11646/zootaxa.4446.2.2, http://zenodo.org/record/144409
Anufrievia jinghongensis Cao & Yang & Lin & Zhang 2018, sp. nov.
No full text11. Anufrievia jinghongensis Cao & Zhang sp. nov. (Figs 10, 25i) Vertex, face and pronotum sordid yellow-whitish, mesonotum light brown. Forewing light brown, transparent, brochosome field darker. Abdominal apodemes narrow, extending to 4th sternite (Fig. 10a). Male genitalia: Pygofer with single macroseta at cephalo-ventral angle of lobe (Fig. 10b); dorsal appendage short, triangular (Fig. 10c). Style with subapical tooth much longer than apical tooth (Fig. 10f). Aedeagal shaft with dorsal margin slightly serrated, constricted subbasally, with pair of apical processes moderately long; preatrial process slightly exceeding gonopore, base broad and narrowing to apex in ventral view; gonopore central (Figs 10h, i). Measurement: Male 3.35mm. Material examined: Holotype: ♂ [NWAFU], CHINA: Yunnan Prov., Jinghong, Yaoqu, light trap, 05.ix.2010, coll. Zhang Meng. Remarks: Similar to A. parisakazu sp. nov. but pygofer dorsal appendage not bifurcated, aedeagal shaft shorter and broader basally, with paired processes arising from apex. Etymology: This new species is named after its type locality “Jinghong”.Published as part of Cao, Yanghui, Yang, Meixia, Lin, Shuanghu & Zhang, Yalin, 2018, Review of the leafhopper genus Anufrievia Dworakowska (Hemiptera: Cicadellidae: Typhlocybinae: Erythroneurini), pp. 203-232 in Zootaxa 4446 (2) on pages 214-216, DOI: 10.11646/zootaxa.4446.2.2, http://zenodo.org/record/144409
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