1,732,311 research outputs found
Review of: Lin Zhang, The Labor of Reinvention: Entrepreneurship in the New Chinese Digital Economy. New York: Columbia University Press 2023. 312 P. ISBN: 9780231195317
Full text linkBook review of: Lin Zhang, The Labor of Reinvention: Entrepreneurship in the New Chinese Digital Economy. New York: Columbia University Press 2023. 312 P. ISBN: 978023119531
Salka lamellipenia Lin & Zhang 2023, sp. nov.
No full text3. Salka lamellipenia Lin & Zhang sp. nov. (Figs 1i–l, 5) Description. Crown milky with a relatively small black round patch, extended from base to apex, coronal suture developed, exceeding 1/2 length of crown. Eyes gray. Face slightly flat in profile. Other features as in generic description (Figs 1i, j, k, l). Male 2S abdominal apodemes extending to posterior part of sternite III (Fig. 5b). Anal tube without appendage (Fig. 5a). Pygofer dorsal appendage bifurcated medially, lower branch much shorter than upper branch; ventral appendage absent (Figs 5a, c). Pygofer side with several rigid setae of different sizes scattered on distal part and group of medium sized setae gathering at cephalo-ventral angle (Fig. 5a). Pygofer ventral appendage with apex exceeding posterior margin of pygofer lobe (Fig. 5a). Subgenital plate expanded subbasally and contracted medially, with 4 macrosetae medially, row of microsetae along outer margin from subbase to apex, subbasal microsetae larger and forming a group (Fig. 5a). Style apex foot-like with short acute heel and quite short toe (Figs 5e, f). Aedeagus with dorsal apodeme rudimentary, preatrium developed, aedeagal shaft inverted S-shaped and extremely compressed, without process, gonopore subapical on ventral surface (Figs 5g, h). Measurement. Male 3.13–3.15mm, female 3.18–3.20mm. Material examined. Holotype: ♁, CHINA, Hunan Prov., Chenzhou, 2020.VII, coll. Deliang Xu; Paratypes: 2♀, same data as holotype. Remarks. This new species is similar to S. fujiwara, but has the aedeagal dorsal apodeme rudimentary, the aedeagal shaft inverted S-shaped and the connective with central lobe developed. Etymology. This specific epithet combines the Latin “lamella” and “penis”, referring to the extremely compressed aedeagal shaft.Published as part of Lin, Shuanghu, Zou, Hongfen, Huang, Min & Zhang, Yalin, 2023, Taxonomic study of the leafhopper genus Salka Dworakowska (Hemiptera: Cicadellidae: Typhlocybinae: Erythroneurini) from China, with descriptions of seven new species, pp. 394-410 in Zootaxa 5228 (4) on pages 400-401, DOI: 10.11646/zootaxa.5228.4.2, http://zenodo.org/record/753988
Mitjaevia bisecta Lin & Zhang 2022, sp. nov.
No full text3. Mitjaevia bisecta Lin & Zhang sp. nov. (Figs 1i–l, 4) Description. Crown with color from milky to yellow, pair of large black spots in the middle. Eyes with basal part brownish, apical part blackish. Other characters as in generic description (Figs 1i, j, k, l). Abdominal apodemes short and broad, extending to the middle of sternite III (Fig. 4b). Anal tube moderately long with poorly developed appendage (Fig. 4a). Pygofer lobe with several microsetae scattered on ventral and caudal parts (Fig. 4a), dorsal appendage narrowing from middle to apex, apex pointed (Figs 4a, c). Subgenital plate with row of microsetae along outer margin, basal setae longer and forming a group, 3 macrosetae of different lengths near middle (Fig. 4a). Connective Y-shaped, with manubrium slim, central lobe developed (Fig. 4d). Style with apex slim and foot-like (Figs 4e, f). Aedeagus with dorsatrium rudimentary and preatrium developed, aedeagal shaft slightly compressed, gonopore in middle on ventral surface, aedeagal shaft connected with basal process by membranous structure, process bifurcated near middle or subapically, brunches of process continue close to each other (Figs 4g, h). Measurement. Male 2.80mm. Material examined. Holotype: ♂, CHINA, Sichuan Prov., Mianyang, 2018.Ⅴ.16, Yuru Yang; Paratypes: 1♂, same data as holotype. Diagnosis. This new species is similar to M. protuberanta, but has the pygofer dorsal appendage almost straight, the aedeagal shaft without processes subapically, and the pygofer side without a ventral process. M. protuberanta has the pygofer dorsal appendage curved, the aedeagal shaft with pair of tooth-like processes subapically, and the pygofer side with ventral process. Etymology. This specific epithet is derived from the Latin word “bisectus”, referring to the bisected ventral aedeagal process.Published as part of Lin, Shuanghu, Zou, Hongfen, Huang, Min & Zhang, Yalin, 2022, Taxonomic study of the leafhopper genus Mitjaevia Dworakowska (Hemiptera: Cicadellidae: Typhlocybinae: Erythroneurini) from China, with descriptions of five new species, pp. 403-415 in Zootaxa 5194 (3) on page 409, DOI: 10.11646/zootaxa.5194.3.4, http://zenodo.org/record/715459
Hypoxanthine Modified Polyethylene Glycol Diglycidyl Ether Gel for Ciprofloxacin Adsorption
No full textA hypoxanthine modified polyethylene glycol diglycidyl ether gel was prepared by the ring opening polymerization of polyethylene glycol diglycidyl ether with hypoxanthine in a simple sol-gel method. The structure and composition were characterized by SEM, FT-IR, BET and XRD. The adsorption experiments of ciprofloxacin at different pH, temperature, contact time and initial concentration were studied. The results show that the gel is porous with the average pore size of 5.2 nm, the optimum adsorption pH is 5 and the saturated adsorption time is 240 minutes. The maximum equilibrium adsorption capacity of ciprofloxacin is 56.1 mg/g at 308 K according to the Langmuir model. The repeated adsorption experiments show that the gel could still adsorb 80% of the first adsorbed ciprofloxacin after 5 times of elution. These results indicate that the gel can be used as a practical adsorbent for ciprofloxacin in aqueous solution
Seriana paraequata Lin & Zhang 2023, sp. nov.
No full textSeriana paraequata Lin & Zhang sp. nov. (Figs 1i–l, 5) Description. Crown pale gray, anterior margin rounded, with small black spot at apex. Eyes blackish. Other external characters as in generic description (Figs 1i, j, k, l). Abdominal apodemes short and slim, only present in sternite III (Fig. 5b). Anal tube long with poorly sclerotized structure (Fig. 5a). Pygofer lobe angled, distal part narrow (Fig. 5a). Dorsal appendage slightly S-shaped curved, tapered towards apex, apex pointed (Figs 5a, c). Characteristics of subgenital plate and style as in generic description (Figs 5a, e, f). Aedeagal shaft tubular, with pair of slim processes arising from middle of shaft, aedeagal shaft narrowing in distal half and suddenly bent near apex in lateral view; gonopore apical; dorsatrium nearly rounded, preatrium curved cephalad (Figs 5g, h). Measurement. Male 2.72mm. Material examined. Holotype: ♁, CHINA, Yunnan Prov., Wenshan, 1770m, 2018.VI.18, coll. Kewei Lv. Remarks. This new species is similar to Seriana equata (Singh), but has the pygofer lobe narrow, the dorsal appendage slightly S-shaped with apex not surpassing the hind margin of the pygofer side, and the aedeagal shaft tapered towards the apex in ventral view, suddenly bent near the gonopore in lateral view. Seriana equata (Singh) has the pygofer lobe broad, the dorsal appendage curved dorsad with apex surpassing the hind margin of the pygofer side, and the aedeagal shaft slightly expanded medially in ventral view, curved ventrad subapically in lateral view. Etymology. This specific epithet is derived from the Latin prefix “ para -” and the species name “ equata ”, referring to similarity with Seriana equata (Singh).Published as part of Lin, Shuanghu, Zou, Hongfen, Huang, Min & Zhang, Yalin, 2023, Five new species and two new records of Erythroneurini from China (Hemiptera, Cicadellidae, Typhlocybinae), pp. 568-582 in Zootaxa 5227 (5) on page 573, DOI: 10.11646/zootaxa.5227.5.4, http://zenodo.org/record/752329
Mitjaevia flexuosa Lin & Zhang 2022, sp. nov.
No full text4. Mitjaevia flexuosa Lin & Zhang sp. nov. (Figs 1m –p, 5) Description. Crown milky to pale yellow, with pair of brown round spots in the middle. Eyes gray marked with brownish. Face milky to yellow. Other features as in generic description (Figs 1m, n, o, p). Abdominal apodemes short and broad, extending to middle of sternite III (Fig. 5b). Anal tube short, without appendage (Fig. 5a). Pygofer lobe with few microsetae scattered on caudal part, hind margin rounded (Fig. 5a), dorsal appendage sinuate (Figs 5a, c). Subgenital plate expanded in the middle, several microsetae on subbasal convex part, 3 macrosetae in the middle (Fig. 5a). Connective Y-shaped, with manubrium long, central lobe developed (Fig. 5d). Style with apex relatively short and slim (Figs 5e, f). Aedeagus with both preatrium and dorsatrium developed, gonopore apical, aedeagal shaft with pair of basal processes on ventral side long and slim (Figs 5g, h). Measurement. Male 1.90–1.95mm. Material examined. Holotype: ♂, CHINA, Guangxi Prov., Guilin, 2018.VII.16, coll. Shuanghu Lin; Paratypes: 1♂, same data as holotype. Diagnosis. This new species is similar to M. elegantula, but has the pygofer lobe posterior margin rounded, the aedeagal shaft basal processes much thinner than the shaft, and the angle between aedeagal shaft and preatrium acute. M. elegantula has the pygofer lobe posterior margin angled, the aedeagal shaft basal processes almost the same width as the shaft, and the angle between aedeagal shaft and preatrium obtuse. Etymology. This specific epithet is derived from Latin word “flexuosus”, referring to the sinuate pygofer dorsal appendage.Published as part of Lin, Shuanghu, Zou, Hongfen, Huang, Min & Zhang, Yalin, 2022, Taxonomic study of the leafhopper genus Mitjaevia Dworakowska (Hemiptera: Cicadellidae: Typhlocybinae: Erythroneurini) from China, with descriptions of five new species, pp. 403-415 in Zootaxa 5194 (3) on page 409, DOI: 10.11646/zootaxa.5194.3.4, http://zenodo.org/record/715459
Shibinga grossiprocessa Lin & Zhang 2023, sp. nov.
No full textShibinga grossiprocessa Lin & Zhang sp. nov. (Figs 1q–t, 7) Description. Crown dark brown, anterior margin rounded, with small pale yellow spots at vertex. Eyes blackish or dark brown. Other external characteristics as in the generic description (Figs 1q, r, s, t). Abdominal apodemes resembles Shibinga gracilprocessa (Fig. 7b). Anal tube with poorly sclerotized structure (Fig. 7a). Pygofer lobe with posterior margin rounded, with several microsetae at cephalo-ventral angle and numerous microtrichia scattered on caudal half (Fig. 7a). Characteristics of dorsal appendage, style and connective characters as in generic description (Figs 7a, c, d, e, f). Subgenital plate short and slim, with about 3 macrosetae in the middle (Fig. 7a). Aedeagal shaft tubular, slightly curved dorsad, with pair of basal appendages extremely long and similar in width to shaft (Figs 7g, h). Measurement. Male 2.45mm, female 2.40–2.50mm. Material examined. Holotype: ♁, CHINA, Zhejiang Prov., Lishui, 2017.Ⅴ.20, coll. Shuanghu Lin; Paratypes: 5♁ 5♀, same data as holotype. Remarks. This new species is similar to Shibinga gracilprocessa, but has the subgenital plate slim and the aedeagal shaft tubular and wider than the basal appendages in lateral view. Shibinga graciliprocessa has the subgenital plate more robust and the aedeagal shaft compressed with basal appendages as wide as the shaft. Etymology. The specific epithet is derived from Latin words “ grossus ” and “ processus ” referring to the robust aedeagal shaft basal appendages.Published as part of Lin, Shuanghu, Zou, Hongfen, Huang, Min & Zhang, Yalin, 2023, Five new species and two new records of Erythroneurini from China (Hemiptera, Cicadellidae, Typhlocybinae), pp. 568-582 in Zootaxa 5227 (5) on pages 576-579, DOI: 10.11646/zootaxa.5227.5.4, http://zenodo.org/record/752329
Motaga rokfaoides Lin & Zhang 2023, sp. nov.
No full textMotaga rokfaoides Lin & Zhang sp. nov. (Figs 1e–h, 4) Description. The body shape and color pattern resemble Motaga rokfa Dworakowska, but crown vertex without dark spot (Figs 1e, f, g, h). Pygofer lobe with few microsetae on distal half (Fig. 4a). Dorsal appendage short and broad, apex pointed and slightly curved ventrad (Figs 4a, c). Subgenital plate with about 4 macrosetae (Fig. 4a). Style and connective resemble those of M. rokfa Dworakowska (Figs 4d, e, f). Aedeagal shaft slightly compressed, bifurcated at apex, with pair of basal appendages reaching gonopore, gonopore located in the upper 1/3 length of shaft on ventral surface (Figs 4g, h). Measurement. Male 2.40mm, female 2.40mm. Material examined. Holotype: ♁, CHINA, Yunnan Prov., Jinghong, 2017.IV.6, coll. Shuanghu Lin; Paratypes: 6♁ 4♀, same data as holotype. Remarks. This new species is similar to Motaga rokfa Dworakowska, but has the crown apex without a dark spot, the apex of the dorsal pygofer appendage not exceeding the hind margin of pygofer side, the hind margin of the pygofer side rounded, the gonopore located in the upper 1/3 of the aedeagal shaft on the ventral surface, and the aedeagal shaft almost straight in lateral view. Motaga rokfa Dworakowska has the crown with a dark spot, the pygofer dorsal appendage exceeding the posterior margin, the hind margin of the pygofer side angled, the gonopore near the middle of the ventral surface of the aedeagal shaft and the shaft curved dorsad in lateral view. Etymology. The specific epithet is derived from the species name “ rokfa ” and Greek suffix “- oides ”, referring to the similarity of this species to Motaga rokfa Dworakowska.Published as part of Lin, Shuanghu, Zou, Hongfen, Huang, Min & Zhang, Yalin, 2023, Five new species and two new records of Erythroneurini from China (Hemiptera, Cicadellidae, Typhlocybinae), pp. 568-582 in Zootaxa 5227 (5) on pages 571-573, DOI: 10.11646/zootaxa.5227.5.4, http://zenodo.org/record/752329
Shibinga graciliprocessa Lin & Zhang 2023, sp. nov.
No full textShibinga graciliprocessa Lin & Zhang sp. nov. (Figs 1m –p, 6) Description. Crown pale yellow, with blackish brown patterns. Eyes gray. Face pale yellow. Other external characters as in generic description (Figs 1m, n, o, p). Abdominal apodemes extend to posterior margin of sternite III (Fig. 6b). Anal tube short (Fig. 6a). Pygofer lobe with posterior margin rounded, with few microsetae and several microtrichia scattered on dorsal and ventral parts in caudal half (Fig. 6a). Characteristics of dorsal appendage, style and connective as in generic description (Figs 6a, c, d, e, f). Subgenital plate short and robust, with about 4 macrosetae in the middle (Fig. 6a). Aedeagal shaft slightly curved dorsad, with pair of basal appendages extremely long and narrower than shaft (Figs 6g, h). Measurement. Male 2.40mm, female 2.45mm. Material examined. Holotype: ♁, CHINA, Hunan Prov., Chenzhou, Mount Mang, 2020.VII, coll. Deliang Xu; Paratypes: 1♁ 1♀, same data as holotype. Remarks. This new species is similar to Shibinga nigra Song, Yuan & Jiang, but has the pygofer lobe with posterior margin rounded, and the aedeagal shaft of uniform width and bent dorsad from the middle in lateral view. Shibinga nigra Song, Yuan & Jiang has the pygofer lobe with the posterior margin indented, and the aedeagal shaft triangular and slightly curved dorsad in lateral view. Etymology. The specific epithet is derived from Latin words “ gracilis ” and “ processus ” referring to the slim aedeagal shaft basal appendages.Published as part of Lin, Shuanghu, Zou, Hongfen, Huang, Min & Zhang, Yalin, 2023, Five new species and two new records of Erythroneurini from China (Hemiptera, Cicadellidae, Typhlocybinae), pp. 568-582 in Zootaxa 5227 (5) on page 576, DOI: 10.11646/zootaxa.5227.5.4, http://zenodo.org/record/752329
Anufrievia drepanoides Lin & Zhang 2021, sp. nov.
No full text2. Anufrievia drepanoides Lin & Zhang sp. nov. (Figs 1e–h, 3) Description. Crown, face except anteclypeus and anterior margin of pronotum yellow-whitish. Central and hind part of pronotum, scutellum and anteclypeus brown. Scutum light yellowish. Paired blurred spots at transition from vertex to face brown. Eyes grey, and basal triangles blackish. Fore wing and hind wing light brown, transparent. Abdominal apodemes narrow and short (Fig. 3b). Pygofer side with 8 macrosetae at cephalo-ventral angle. Central part of subgenital plate with about 4 macrosetae in irregular row near lateral margin (Fig. 3a). Apex of dorsal appendage not bifurcated, base broad, tapering to apex, moderately curved, resembling horn in lateral view (Fig. 3d). Area between style apical and subapical teeth convex, resembling a sickle in lateral view, with apical tooth much longer than subapical tooth (Fig. 3e). Aedeagal shaft with no apical or subapical processes, gonopore subapical, pre-atrial process surpassing aedeagal shaft and almost straight (Figs 3g, h). Measurement. Length of male 2.7–2.9mm (including wing). Material examined. Holotype: ♂, CHINA, Yunnan Prov., Jinghong, 15 July 2017, coll. Weijian Huang. Remarks. This new species can be distinguished from other species in this genus by the style apex resembling a sickle in lateral view, the pre-atrial process surpassing the aedeagal shaft and the absence of processes on aedeagal shaft. Etymology. The specific epithet is derived from the Latin “drepanoides”, referring to the style apex resembling a sickle or hook in lateral view.Published as part of Lin, Shuanghu & Zhang, Yalin, 2021, Taxonomic study of the leafhopper genus Anufrievia Dworakowska (Hemiptera: Cicadellidae: Typhlocybinae: Erythroneurini) from China, with descriptions of two new species, pp. 438-444 in Zootaxa 5027 (3) on page 441, DOI: 10.11646/zootaxa.5027.3.9, http://zenodo.org/record/544984
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