3,911 research outputs found
Heteroporus Cameron 1939
No full text<i>Heteroporus</i> Cameron <p> <i>Heteroporus</i> Cameron, 1939d: 25. Type species: <i>Heteroporus ferrugineus</i> Cameron, by monotypy <i>ferrugineus</i> Cameron, 1939d: 25 (<i>Heteroporus</i>, TL: G. Tangkoeban Prahoe, 4000-5000 feet) Distribution: Indonesia (Java)</p>Published as part of <i>Hlaváč, Peter, Newton, Alfred F. & Maruyama, Munetoshi, 2011, World catalogue of the species of the tribe Lomechusini (Staphylinidae: Aleocharinae) 3075, pp. 1-151 in Zootaxa 3075</i> on page 4
Pseudothamiaraea Cameron 1923
No full text<i>Pseudothamiaraea</i> Cameron <p> <i>Pseudothamiaraea</i> Cameron, 1923: 363. Type species: <i>Pseudothamiaraea brunnea</i> Cameron, by original designation <i>brunnea</i> Cameron, 1923: 364 (<i>Pseudothamiaraea,</i> TL: Haiti) Distribution: Haiti</p>Published as part of <i>Hlaváč, Peter, Newton, Alfred F. & Maruyama, Munetoshi, 2011, World catalogue of the species of the tribe Lomechusini (Staphylinidae: Aleocharinae) 3075, pp. 1-151 in Zootaxa 3075</i> on page 7
UV repopulation of TL traps in LiF
No full textThe observance of simultaneous electrical glow and TL glow peaks in crystals of a pure LiF is reported. TL glow peaks at about 80/sup 0/C and about 120/sup 0/C are accompanied by peaks in the electrical conductivity of the crystal. Bleaching in the F band of a crystal of LiF, which was initially exposed to 3 MegR and annealed at 150/sup 0/C for five minutes, reproduces both the TL and electrical glow peaks
Rhyncocheilus rugulipennis Cameron 1932
No full textRhyncocheilus rugulipennis Cameron, 1932 (Figs 1, 2, 13–15, 30–33) Rhyncochilus [sic!] rugulipennis Cameron, 1932: 226; Schillhammer, 2012: 198. Material examined. China: Guangdong: 4³³ 1♀, Ruyuan County, Nanling N. R., alt. 1500–1800 m, 17.VIII.2008, Qi & Yin leg. (SHNU); Fujian: 1³, Wuyishan, Guadun, alt. 1200 m, 30.VIII.2009, Huang Hao leg. (SHNU); Yunnan: 1³ 1♀, Lincang, Shuibatou Village, 24°38′16′′N, 100°27′17′′E, 1281 m, 20. VI.2019, Zi-Chun Xiong leg. (SHNU). Measurements. Male: BL: 18.5–21.2 mm, FL: 10.8–11.4 mm. HL: 2.34–2.50 mm, HW: 3.17–3.22 mm, EYL: 1.06–1.11 mm, TL: 0.89–1.00 mm, PL: 2.50–2.72 mm, PW: 2.89–3.06 mm, EL: 4.78–5.06 mm, EW: 4.84–5.34 mm. HW/HL: 1.29–1.36, TL/EYL: 0.84–0.95, PL/PW: 0.84–0.91, EL/EW: 0.95–0.99. Female: BL: 18.6 mm, FL: 11.7 mm. HL: 2.67 mm, HW: 3.39 mm, EYL: 1.11 mm, TL: 1.11 mm, PL: 2.78 mm, PW: 3.17 mm, EL: 5.17 mm, EW: 5.67 mm. HW/HL: 1.27, TL/EYL: 1.00, PL/PW: 0.88, EL/EW: 0.91. Distribution. China (Fujian, Guangdong, Yunnan), Myanmar. New to China. Remarks. The apex of the aedeagal paramere (Fig. 33) in the Chinese populations is more pointed than that of the types, but this is considered as variability within the species.Published as part of Tang, Liang, Schillhammer, Harald & Zhao, Xin, 2021, Notes on the genus Rhyncocheilus in China (Coleoptera, Staphylinidae Staphylininae) with descriptions of three new species, pp. 99-112 in Zootaxa 4948 (1) on pages 100-101, DOI: 10.11646/zootaxa.4948.1.5, http://zenodo.org/record/461617
Rhacalysia Cameron 1910
No full textGenus <i>Rhacalysia</i> Cameron, 1910 <p> <i>Rhacalysia</i> Cameron, 1910, Wien. Entomol. Z., 29: 9; Viereck, 1914, Bull. U.S. Natl. Mus., 83: 127; Ramakrishna Ayyar, 1923, Rep. Proc. Entomol. Meet. Pusa, 5 th: 362; Shenefelt, 1974, Hym. Cat. Pars 11: 993 (as synonym of <i>Idiasta</i>); Bhat, 1979a, Orient. Insects, 12(4): 473; Marsh, 1979, Cat. Hym. Am. N. Mex. Wash., 1: 223 (as synonym of <i>Idiasta</i>); Wharton, 1980, Univ. Calif. Publs Entomol., 88: 49; Fischer, 1994a, Linzer biol. Beitr., 26(2): 787, 1999, Linzer biol. Beitr., 31(1): 6; de Oliveira & Penteado-Dias, 2020, ZooKeys, 976: 114 (TS: <i>Rhacalysia rufobalteata</i> Cameron, 1919).</p> <p> <i>Rhacalysia profundinigra</i> Fischer, 1999</p> <p> <i>Rhacalysia profundinigra</i> Fishcher, 1999, Linzer biol. Beitr., 31(1): 7.</p> <p> <b>TL</b>: Badrinath-Govind Ghat, Uttarakhand; <b>TD</b>: OLML.</p> <p> <b>Distribution*</b>: India: Uttarakhand (Badrinath-Govind Ghat); West Himalaya.</p> <p> <i>Rhacalysia rufobalteata</i> Cameron, 1910</p> <p> <i>Rhacalysia rufobalteata</i> Cameron, 1910, Wien. Entomol. Z., 29: 10.</p> <p> <i>Idiasta rufobalteata</i>: Fischer, 1967, Ann. Nathist. Mus. Wien, 70: 114, 1999, Linzer biol. Beitr., 31(1): 6; Shenefelt, 1974, Hym. Cat., pars 11: 995; Bhat, 1979a, Orient. Insects, 12(4): 474.</p> <p> <b>TL</b>: Darjeeling, West Bengal; <b>TD</b>: ZMB.</p> <p> <b>Distribution</b>: India *: Meghalaya (Botanical Garden, Shillong); West Bengal (Botanical Garden, Darjeeling, Algarah, Ghoom, Kalimpong, Kurseong, Singamari); Central Himalaya; North-East Hills (Bhat, 1979a).</p>Published as part of <i>Singh, Longjam Roni Kumar, Chandra, Kailash & Gupta, Devanshu, 2021, Catalogue of Indian Alysiinae (Hymenoptera: Braconidae), pp. 81-100 in Zootaxa 5020 (1)</i> on page 91, DOI: 10.11646/zootaxa.5020.1.4, <a href="http://zenodo.org/record/5223010">http://zenodo.org/record/5223010</a>
Tangle-bearing neurons survive despite disruption of membrane integrity in a mouse model of tauopathy
No full textNeurofibrillary tangles (NFTs) are associated with neuronal loss and correlate with cognitive impairment in Alzheimer disease, but how NFTs relate to neuronal death is not clear. We studied cell death in Tg4510 mice that reversibly express P301L mutant human tau and accumulate NFTs using in vivo multiphoton imaging of neurofibrillary pathology, propidium iodide (PI) incorporation into cells, caspase activation, and DNA labeling. We first observed that in live mice, a minority of neurons were labeled with the caspase probe or with PI fluorescence. These markers of cell stress were localized in the same cells and appeared specifically within NFT-bearing neurons. Contrary to expectations, the PI-stained neurons did not die during a day of observation; the presence of Hoechst-positive nuclei in them on the subsequent day indicated that the NFT-associated membrane disruption, as suggested by PI staining, and caspase activation do not lead to immediate death of neurons in this tauopathy model. This unique combination of in vivo multiphoton imaging with markers of cell death and pathological alteration is a powerful tool for investigating neuronal damage associated with neurofibrillary pathology
Lesteva kargilensis Cameron 1934
No full textLesteva (s.str.) kargilensis Cameron, 1934 Lesteva kargilensis Cameron, 1934: 17 Lesteva kargilensis: Lohse, 1982: 201, 204; Coiffait, 1982: 42 Type material examined: INDIA: Holotype of Lesteva kargilensis Cameron, 1934, ♀ [The specimen without antennomeres 10-11 of left antenna, antennomeres 6-11 of right antenna, right middle and hind legs]: ‘HOLO- | TYPE’ , ‘Y.N.I.E. | K83 Kargil | 24 May 1932. Wet | mossy stones by | spring’ , ‘N. India: KASHMIR [handwritten]’ , ‘ Lesteva | kargilensis | TYPE Cam.’ , ‘Holotype [handwritten in black] | P.M. Hammond | det. 1973’ , ‘ Lesteva (s.str.) | kargilensis | Cameron, 1934 | Shavrin A.V. det. 2016’ (BMNH). Redescription. Measurements of the holotype: HL: 0.60; HW: 0.82; OL: 0.25; LT: 0.12; LP: 0.82; PWMax 0.97; PWMin 0.70; ElL: 1.50; EW 1.60; AW(IV): 1.55; TL: 3.82. In general appearance similar with L. (s.str.) fluviata Champion, 1920 (for details see Shavrin 2012). Body, antennomeres and tibiae dark brown; femora, middle and apical portions of elytra reddish brown; apical parts of femora dark brown; apical margin of abdominal tergite VII, tergite VIII and apical abdominal segment yellow brown; tarsi, base of antennomeres 1¯4, ocelli and mouthparts yellow. Head with regular and deep punctation; punctation of pronotum as that on head, distance between punctures on disc as diameter of 1¯2 nearest punctures; elytra with large and deep punctation; abdomen with small regular punctures. Body glossy, without microsculpture, except abdomen with well visible isodiametric microsculpture. Head 1.3 times wider than long; eyes convex, twice as long as temples; distance between ocelli slightly shorter than distance between ocellus and posterior margin of eye. Measurements of antennomeres (length/width): 1: 0.19 × 0.09; 2¯3: 0.17 × 0.05; 4¯6: 0.15 × 0.06; 7¯9: 0.15 × 0.07. Pronotum cordate, convex, widest near anterior third, slightly wider than length, 1.6 times wider than head, with distinctly rectangular hind angles. Elytra 1.8 times longer than pronotum, widely expanded posteriad, with rounded hind margins. Tarsomere 1 of metatarsus visibly longer than tarsomeres 2¯3, as long as apical tarsomere. Male unknown. Comparative notes. Based on the body size, coloration and punctation, L. kargilensis is similar to L. fluviata, from which it differs by the narrower head and pronotum, more elongated antennomeres, and by the slightly wider and shorter elytra. Remarks. The species was described based on one specimen (see above) from India (Kashmir) by Cameron (1934). The aedeagus, which has been illustrated by Coiffait (1982: 156, Figs. 260¯261), apparently refers to L. (s.str.) championi Lohse, 1982.Published as part of Shavrin, Alexey V., 2016, New taxonomic and faunistic data on the Himalayan Lesteva Latreille, 1797 (Coleoptera: Staphylinidae: Omaliinae), pp. 143-150 in Zootaxa 4205 (2) on pages 146-147, DOI: 10.11646/zootaxa.4205.2.3, http://zenodo.org/record/19290
The charge transfer and ion formation in liquid Li-Tl alloys
No full textThe 7Li NMR Knight shift, K, and the spin-lattice relaxation time, T1, were measured for liquid Li–Tl alloys. The K decreases rapidly with the addition of Tl up to 20 at.% Tl. In the concentration from 20 to 50 at.% Tl, the K decreases only slightly and the K of 50 at.% Tl is 60% of K for the pure liquid Li. Such a decrease of K is considered as an indication for the strong charge transfer from Li to Tl. These tendencies are similar to those from previous studies for liquid Li–Ga and Li–In alloys. However, beyond 50 at.% Tl, the K increases and reaches to an almost constant value (70% of K for the pure liquid Li). Such a back donation of charge is absent for liquid Li–Ga and Li–In alloys. It is considered that the tendency of the formation of ionic structural unit for liquid Li–Tl alloys is slightly weaker compared with the cases of liquid Li–Ga and Li–In alloys. The T1 is also discussed with the relation to the Knight shift and the electronic properties
THE VISIBLE EMISSION SPECTRA OF Zn , Cd , Zn Tl, AND Cd Tl MOLECULES
No full textAuthor Institution: Department of Physics, Indian Institute of Technology; Department of Physics, State University of New York at BuffaloNew Spectra have been obtained for Zn-Tl and Cd-Tl mixtures excited by a high frequency oscillator and studied under a dispersion of 5\AA/mm. Both the mixtures show one system in the red, one in the blue and continuous bands attached to the Tl lines 3775 and 5350 \AA. The red system of Zn-Tl mixture exhibits an isotope effect, which shows Zn as the emitter. The emitter for the red system of Cd-Tl mixture is Cd . The blue systems and continuous bands are due to diatomic ZnTl and CdTl molecules. A vibrational analysis of all these systems, wherever possible has been carried out and the constants determined
Geodromicus curvipes Cameron 1924
No full textGeodromicus (s.str.) curvipes Cameron, 1924 (Figs. 70, 74, 80–81) Geodromicus curvipes Cameron, 1924: 173; Cameron 1930: 164 Type material examined. Lectotype (here designated) of Geodromicus curvipes Cameron, 1924, ♂ (Fig. 74): ‘Type | H.T.’ , ‘Gahan 7000`| Simla Hills. | Dr. Cameron | IX. 1921.’ , ‘ Geodromicus | curvipes | Cam’ , ‘M.Cameron. | Bequest. | B.M. 1955-147.’ , ‘ LECTOTYPE | Geodromicus | curvipes Cameron, 1924 | Shavrin A.V. des. 2022’ , ‘ Geodromicus (s.str.) | curvipes Cameron, 1924 | Shavrin A. det. 2022’ (BMNH). Paralectotype, ♂ (dissected): ‘Gahan 7000`| Simla Hills’ , ‘Dr. Cameron | IX. 1921.’ , ‘ Geodromicus | curvipes | Cam’ , ‘M.Cameron. | Bequest. | B.M. 1955-147.’ , ‘ Geodromicus (s.str.) | curvipes Cameron, 1924 | Shavrin A. det. 2022’ (BMNH). Redescription. Measurements (n=2): HW: 0.90–0.95; HL: 0.62; OL: 0.25; TL: 0.17–0.19; AL (lectotype): 2.50; PL: 1.11–1.12; PWmax: 1.12; PWmin: 0.78–0.85; ESL: 1.36–1.42; EW: 1.49–1.54; MTbL (lectotype): 0.90; MTrL (lectotype): 0.57 (MTrL 1–4: 0.30; MTrL 5: 0.27); AW: 1.48–1.55; AedL: 0.87; BL: 4.80–4.95 (lectotype). Habitus as in Fig. 74. Body, mouthparts, antennae and legs dark-brown; tarsi yellow-brown. Head with fine microsculpture: transverse in clypeus and isodiametric in middle portion; neck with very dense isodiametric meshes; pronotum with very fine isodiametric microreticulation, indistinct in mediobasal portion; scutellum with fine transverse microsculpture; abdomen with dense and transverse meshes. Pubescence of forebody very fine, semierect, moderately short and sparse, longer in apical portion of head; abdomen with moderately dense and very fine, decumbent pubescence. Head 1.4–1.5 times as broad as long, with distinctly convex supra-antennal elevations, middle portion between anterior margin of eyes and infraorbital portions; anterio-median depression subrectangular, wide and moderately deep; temples very convex, 1.3–1.4 times as long as longitudinal length of eyes; interocellar depression narrow, subtriangular and moderately deep, with narrow and deep anteocellar foveae, reaching level of apical third of eyes. Eyes large, strongly protruded laterad. Ocelli large, distance between ocelli slightly shorter than distance between ocellus and posterior margin of eye. Punctation moderately large and deep, sparser and finer in middle portion. Maxillary palpomere 3 slightly broadened apically; apical palpomere slightly shorter than 3, from middle gradually rounded toward rounded apex. Antenna reaching middle of elytra when reclined; antennomere 2 about 1.3 times as long as basal antennomere, 3 distinctly longer than 2, 4 shorter than 3, 5–8 slightly longer and broader than 4, 9–10 slightly broader than 8, apical antennomere 1.3 times as long as 10. Pronotum convex, about as broad as long, from widest middle strongly narrowed anteriad toward rounded apical angles and gradually narrowed toward base; narrowest basal part of pronotum slightly elongate, indistinctly concave laterally and with slightly divergent lateral subacute hind angles; middle portion with long and moderately wide longitudinal depression (lectotype with depression reaching middle length of pronotum; longitudinal depression of paralectotype reaching mediobasal portion of pronotum); mediobasal depression transverse and moderately deep; apical portion of pronotum slightly protruded apicad, with anterior margin widely concave, about as broad as slightly concave basal margin, with bordered and slightly reflexed edges, larger in latero-apical portions; lateral margins of pronotum narrowly bordered. Punctation about as that in middle portion of head, but slightly denser, significantly sparser and finer in mediobasal portion in front of mediobasal depression Elytra convex, depressed in middle, slightly broader than long and slightly broadened posteriad, 1.2 times as long as pronotum; hind margins widely rounded. Punctation denser, coarser, larger and deeper than that on pronotum, with distance between punctures in middle as long as diameters of one–two nearest punctures, finer along suture (paralectotype) and/or apical portions. Metatibia about 1.5 times as long as metatarsus. Abdomen about as broad as elytra, with two large and transverse tomentose spots in middle of abdominal tergite IV and moderately wide palisade fringe on apical margin of abdominal tergite VII. Male. Profemuri very wide; inner margins of protibia widely curved; protarsomeres 1–4 moderately wide. Apical margin of abdominal tergite VIII truncate or slightly concave. Apical margin of abdominal sternite VIII widely concave. Aedeagus with wide basal part, significantly narrowed toward median lobe; median lobe with elongate and moderately wide apical portion, from apical third gradually narrowed toward rounded apex; parameres narrow and short, not reaching apex of median lobe, with three moderately short apical and two subapical setae; internal sac with moderately short and wide field of small thorns, with elongate, sclerotized, apical structures and very long, narrow flagellum (Fig. 80). Lateral aspect of the aedeagus as in Fig. 81. Female unknown. Comparative notes. Based on the general shape and the coloration of the body with similar shape of the pronotum, the presence of microsculpture and longitudinal depression on the pronotum, the similar shape of the protibia in males and the general shape of the aedeagus, G. (s.str.) curvipes is similar to the Himalayan G. (s.str.) subsimilis (see below). From this species it can be distinguished by the smaller body, slightly narrower pronotum, finer microsculpture on the pronotum, broader apical portion of the median lobe and different internal morphology of the aedeagus, with the presence of the long flagellum (missing in G. (s.str.) subsimilis). Distribution. The species is known from the type localitiy in Himachal Pradesh, India (Fig. 70). Bionomics. Specimens were collected from 2100 m a.s.l. The detailed bionomical data are unknown. Remarks. Geodromicus curvipes was originally described based on unspecified number of specimens from “Simla Hills; Gahan, 7000 feet above the sea”. The male in better condition and with additional label ‘Type H.T.’ is designated as the lectotype in order to fix the identity of the name.Published as part of Shavrin, Alexey V., 2022, The bodemeyeri and the convexicollis species groups of the genus Geodromicus Redtenbacher, 1857, and additional taxonomic and faunistic data for some species of the Eastern Palaearctic Region (Coleoptera: Staphylinidae: Omaliinae), pp. 451-496 in Zootaxa 5213 (5) on pages 489-490, DOI: 10.11646/zootaxa.5213.5.1, http://zenodo.org/record/738160
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