335,376 research outputs found
Stenocyphon neozealandicus Ruta, Thorpe & Yoshitomi 2011
No full text<i>Stenocyphon neozealandicus</i> Ruta, Thorpe & Yoshitomi, 2011 <p>(Fig. 17C)</p> <p> <i>Stenocyphon neozealandicus</i> Ruta, Thorpe & Yoshitomi 2011: 404.</p> <p> <b>Type locality.</b> Warawara Forest.</p> <p> <b>Broun number: -</b></p> <p> <b>Type material examined.</b> 2 exx. <i>Holotype</i> (AMNZ): “ NEW ZEALAND ND \ Warawara F. P. \ south of camp \ 7 Dec 2008 \ D. S. Seldon” [white label, printed], “beating at night” [white label, printed], “ <i>Stenocyphon</i> \ n. sp. \ det. S. E. Thorpe, 2011” [white label, printed], “ AMNZ 85074 \ AUCKLAND \ MUSEUM \ NEW ZEALAND ” [blue label, printed]; “ HOLOTYPE \ Stenocyphon \ neozealandicus sp. nov. \ des. Ruta, Thorpe & \ Yoshitomi 2011” [red label, printed]. <i>Paratype</i> (AMNZ): same data as the holotype, with the exception of museum label: “ AMNZ 85094 \ AUCKLAND \ MUSEUM \ NEW ZEALAND ” [blue label, printed]; “ PARATYPE \ Stenocyphon \ neozealandicus sp. nov. \ des. Ruta, Thorpe & \ Yoshitomi 2011” [red label, printed].</p>Published as part of <i>Kiałka, Agata & Ruta, Rafał, 2017, An illustrated catalogue of the New Zealand marsh beetles (Coleoptera: Scirtidae), pp. 1-76 in Zootaxa 4366 (1)</i> on page 74, DOI: 10.11646/zootaxa.4366.1.1, <a href="http://zenodo.org/record/1125265">http://zenodo.org/record/1125265</a>
On the Origins of Hamilton’s Principle(s)
No full textThis entry first provides an overview of the historical, cultural and epistemological background that is key for Hamilton’s positions on mechanics. We consider the investigations on geometrical optics in the 17th and 18th centuries, Euler’s and Lagrange’s foundations of variational calculus in the 18th century to find extrema of physical quantities expressed as infinite sums of infinitesimals (today, we would say ‘definite integrals’), and Lagrange’s introduction of a revolutionary analytical mechanics, all of which are all fertile grounds for Hamilton’s steps—first, in what we could call analytical optics, then in an advanced form of analytical mechanics. Having provided such an overview, we run through some of Hamilton’s original papers to highlight how he posed his principle(s) in the wake of his forerunners and how his principles are linked with the search for a unitary view of physics
Scirtes confinis Ruta, 2008, sp. nov.
No full textScirtes confinis sp. nov. (Figs. 38–43) Type material (7 males). Holotype, male. Mounted on card bearing number 42 [nr. Morne Blanc, c. 1000ft., 13.xi. 1908]; “ Mahe, 1908 - 9. / Seychelles Exp.” (printed label); “ex syntypes series of Scirtes seychellensis Champion, 1924 ” (printed label); “ HOLOTYPUS / Scirtes confinis sp. n. / des. Rafał Ruta 2008 ” (red label, printed). Deposited in CUMZ. Paratypes. 1 male: Mounted on card bearing number 104 [Mahe, Cascade Estate, c. 800ft. and over]; “ Mahe, 1908 - 9. / Seychelles Exp.” (printed label); “ex syntypes series of Scirtes seychellensis Champion, 1924 ” (printed label); “ PARATYPUS / Scirtes confinis sp. n. / des. Rafał Ruta 2008 ” (red label, printed). Deposited in CUMZ. 1 male: Mounted on card bearing number 85 [Mare aux Cochons District, 1000-2000ft., 26.i. 1909]; “ Mahe, 1908 - 9. / Seychelles Exp.” (printed label); “ex syntypes series of Scirtes seychellensis Champion, 1924 ” (printed label); “ PARATYPUS / Scirtes confinis sp. n. / des. Rafał Ruta 2008 ” (red label, printed). Deposited in CUMZ. 1 male: Mounted on card bearing number 94 [Cascade Estate, c. 1000ft., ii-iii. 1909]; “ Mahe, 1908 - 9. / Seychelles Exp.” (printed label); “ex syntypes series of Scirtes seychellensis Champion, 1924 ” (printed label); “ PARATYPUS / Scirtes confinis sp. n. / des. Rafał Ruta 2008 ” (red label, printed). Deposited in CUMZ. 1 male: Mounted on card bearing number 42 [nr. Morne Blanc, c. 1000ft., 13.xi. 1908]; “ Mahe, 1908 - 9. / Seychelles Exp.” (printed label); “ex syntypes series of Scirtes seychellensis Champion, 1924 ” (printed label); “ PARATYPUS / Scirtes confinis sp. n. / des. Rafał Ruta 2008 ” (red label, printed). Deposited in CUMZ. 1 male: Mounted on card bearing number 47 [nr. Morne Blanc, xi. 1908]; “ Mahe, 1908 - 9. / Seychelles Exp.” (printed label); “ex syntypes series of Scirtes seychellensis Champion, 1924 ” (printed label); “ PARATYPUS / Scirtes confinis sp. n. / des. Rafał Ruta 2008 ” (red label, printed). Deposited in CUMZ. 1 male: Mounted on card bearing number 17 [Mare aux Cochons, plateau and jungle, viii. 1908]; “Silhouette, 1908. / Seychelles Exp.” (printed label); “ex syntypes series of Scirtes seychellensis Champion, 1924 ” (printed label); “ PARATYPUS / Scirtes confinis sp. n. / des. Rafał Ruta 2008 ” (red label, printed). Deposited in CUMZ. Diagnosis. Externally identical to S. seychellensis. Distinguishable from similar species on the basis of the morphology of male genitalia (penis symmetrical, with long parameroids, tegmen symmetrical, tergite 8 long, apices tapered and devoid of setation). Description. Holotype, male. Measurements: TL 2.05, EW 1.33, EL 1.7, PW 0.98, PL 0.43, HW 0.68, HL 0.32, interocular space 0.49, greatest depth of body 0.73. Body oblong oval, flattened, and covered with yellowish hairs. Elytra, scutellum, head and ventrum brown, pronotum lighter, yellowish-brown. Legs light brown, antennae with first 3 antennomeres yellow, remaining yellowish-brown. Body 1.2 times as long as broad. Head 2.13 times as broad as long, 1.39 times wider than interocular space, with subtle granulate punctation, eyes moderately protuberant. Antennae filiform, reaching base of elytra, antennomere 1 subcylindrical, 2 subglobular, antennomere 3 shortest; length ratios of antennomeres 2.0: 1.5: 1.0: 2.0: 1.75: 1.75: 1.75: 1.75: 1.75: 1.75: 2.0; length/width ratios of antennomeres 1.6, 1.5, 2.0, 2.67, 2.33, 2.33, 2.33, 2.33, 2.33, 2.33, 2.67. Clypeus semirectangular, with slightly emarginate anterior margin, lateral edges explanate. Labrum reduced, hidden under clypeus. Mandibles subtriangular, small, reduced. Pronotum small, almost semicircular, anterior angles rounded, 2.3 times as broad as long, widest at posterior angles. Pronotum with subtle punctation. Posterior margin of pronotum bisinuate. Scutellum subtriangular, with subtle punctation. Base of elytra only slightly wider than base of pronotum. Elytra elongate oval, without longitudinal ridges, 1.28 times as long as broad and 4 times as long as pronotum. Sides rounded, regularly converging to apex. Humeri slightly protruding. Punctation relatively dense and deep, punctures fusing into transverse lines, distance between punctures = 0.5 diameter. Epipleura gradually narrowing, reduced in apical part. Hind wings fully developed. Prosternal process elongate, laminar, forming a sharp ridge, apex tapered. Mesocoxae separated by a very long (ca. 4 times as long as wide) process with subparallel sides slightly dilating in apical portion, metaventral discrimen indistinct. Metacoxae touching one another. Ratios of ventrites’ lengths: 1.0: 2.1: 2.0: 2.0: 1.9. Last ventrite not emarginate. Ventrite 2 with few larger punctures on mesal portion of anterior margin. Metafemora enlarged, ca. 5 times broader than metatibia. Metatibial spurs present, longer almost straight, as long as 2 / 3 length of 1 st tarsomere, with small tooth on margin. Shorter spur as long as 0.4 of the length of the longer spur. Male genitalia. Penis (L 0.18, W 0.06) with very narrow parameroids and reduced centema; tegmen (L 0.32, W 0.08) bifid in apical half; sternite 9 (L 0.2, W 0.11) small, with hooked apices and few setae on apical margin; tergite 8 (L 0.5, W 0.18) relatively large, consisting of two rod-like hemitergites, tempered in the apical portions and devoid of setation; tergite 9 (L 0.43, W 0.8) with row of setae on apical margin. Variability. Total length 1.88–2.25 (mean 2.1, n = 7). Coloration almost invariate, pronotum always distinctly lighter than head and elytra, yellowish. Elytra and head brown. Female unknown. Name derivation. Referring to external similarity to Scirtes sechellensis.Published as part of Ruta, Rafal, 2008, Contribution to the knowledge of Seychellois Scirtidae (Coleoptera: Scirtoidea), pp. 49-68 in Zootaxa 1913 on pages 59-61, DOI: 10.5281/zenodo.18455
La sequenza stratigrafica, Catalogo (con A. Ruta Serafini), Note conclusive (con A. Ruta Serafini)
No full textVengono presentati i risultati di un intervento di archeologia di emergenza effettuato nella necropoli orientale di Padova, che ha portato al recupero di 26 sepolture di VI sec. a. C
Chilarboreus acuticollis Ruta 2011
No full textChilarboreus (s. str.) acuticollis Ruta, 2011 (Figs 1A, 2, 3A, 3D, 3F, 4) Material examined. 2 females (EUM): “ CHILI, Prov. Valdivia, \ Cerro Oncol, 6. II. \ 1999 T. Cekalovic leg. \ TC- 576 PO-5”. Description. Female. Body elongate, widest in posterior 2/3 length of elytra, convex, sparsely clothed with procumbent setae (Figs 1A, 2A). Coloration light brown, without contrasting dorsal pattern. Head as long as wide, 1.2× wider than interocular space, convex, with small depression in posterior portion, covered with subtly granulate punctures; eyes small, subtly protuberant. Supraantennal ridge oblique (Fig. 2E), forming obtuse angle with anterior margin of clypeus; clypeus subtrapezoidal, with rectangular emargination in anterior portion. Antennae moderately long, extending to basal 1/4 of elytra; antennomere 1 globular, wide, antennomere 2 cylindrical, much narrower than antennomere 1, antennomere 3 long, ca. 1.4× longer than antennomere 2, antennomeres 4–10 gradually shortening, apical antennomere wide, suboval, as long as antennomere 3. Pronotum (Fig. 2B) rectangular, strongly transverse, sides subparallel, a bit wider at posterior angles, lateral carinae crenulate, antero- and posterolateral angles right-angled, not produced; disc convex, with deep longitudinal groove along the midline, deep fossae in anterolateral angles, and deep impunctate groove along basal margin ending in deep pits. Anterior portion of basal groove with two transverse, elevated, tubercle-like excitators, each with numerous minute punctures visible at high magnification (Fig. 2C). Punctation of pronotum granulate on disc, coarsely granulate on sides. Elytral punctation irregular, dense in anterior portion (punctures large, separated by ca. 0.5–0.7 diameter) and sparse in posterior portion (punctures small, separated by ca. 4.0 diameters). Each elytron with adsutural stria in anterior portion and with three distinct longitudinal carinae, humeral portion rounded. Anterolateral portions of elytra explanate and slightly produced anteriorly. Hind wings absent. Mesoventral process truncate at apex. Metaventrite with large, coarse punctures in anterior portion and almost smooth in posterior portion, with deep transverse groove along posterior margin (Fig. 2D). Abdomen with paired setal tufts on ventrite 4 (Figs. 3A, D, F). Sternite VIII elongate (L 0.64 mm), with a pair of subparallel apodemes fused basally; tergite VIII very long (L 1.30 mm), apical portion subtrapezoidal; ovipositor long (L 1.45 mm), branchlets absent, coxites membranous, triangularly elongate, not covered with setae, styli missing in the studied specimen (Fig. 4A, B). Bursal sclerite (Fig. 4C) small (L 0.45 mm), subconical, densely covered with spines. Measurements and ratios. N=2: TL 2.01–2.33 (2.17), PL 0.50–0.53 (0.52), PW 0.77–0.80 (0.79), EL 1.67– 1.77 (1.72), EW 1.10–1.17 (1.14), TL/EW 1.8–2.0 (1.9), PW/PL 1.5, EL/EW 1.5, EL/PL 3.3.Published as part of Ruta, Rafał & Yoshitomi, Hiroyuki, 2018, Description of females of Chilarboreus Ruta, 2011 (Coleoptera: Scirtidae: Scirtinae), pp. 265-274 in Zootaxa 4388 (2) on pages 266-268, DOI: 10.11646/zootaxa.4388.2.8, http://zenodo.org/record/118798
Chilarboreus acuticollis Ruta 2011
No full textChilarboreus (s. str.) acuticollis Ruta, 2011 (Figs 1A, 2, 3A, 3D, 3F, 4) Material examined. 2 females (EUM): “ CHILI, Prov. Valdivia, \ Cerro Oncol, 6. II. \ 1999 T. Cekalovic leg. \ TC- 576 PO-5”. Description. Female. Body elongate, widest in posterior 2/3 length of elytra, convex, sparsely clothed with procumbent setae (Figs 1A, 2A). Coloration light brown, without contrasting dorsal pattern. Head as long as wide, 1.2× wider than interocular space, convex, with small depression in posterior portion, covered with subtly granulate punctures; eyes small, subtly protuberant. Supraantennal ridge oblique (Fig. 2E), forming obtuse angle with anterior margin of clypeus; clypeus subtrapezoidal, with rectangular emargination in anterior portion. Antennae moderately long, extending to basal 1/4 of elytra; antennomere 1 globular, wide, antennomere 2 cylindrical, much narrower than antennomere 1, antennomere 3 long, ca. 1.4× longer than antennomere 2, antennomeres 4–10 gradually shortening, apical antennomere wide, suboval, as long as antennomere 3. Pronotum (Fig. 2B) rectangular, strongly transverse, sides subparallel, a bit wider at posterior angles, lateral carinae crenulate, antero- and posterolateral angles right-angled, not produced; disc convex, with deep longitudinal groove along the midline, deep fossae in anterolateral angles, and deep impunctate groove along basal margin ending in deep pits. Anterior portion of basal groove with two transverse, elevated, tubercle-like excitators, each with numerous minute punctures visible at high magnification (Fig. 2C). Punctation of pronotum granulate on disc, coarsely granulate on sides. Elytral punctation irregular, dense in anterior portion (punctures large, separated by ca. 0.5–0.7 diameter) and sparse in posterior portion (punctures small, separated by ca. 4.0 diameters). Each elytron with adsutural stria in anterior portion and with three distinct longitudinal carinae, humeral portion rounded. Anterolateral portions of elytra explanate and slightly produced anteriorly. Hind wings absent. Mesoventral process truncate at apex. Metaventrite with large, coarse punctures in anterior portion and almost smooth in posterior portion, with deep transverse groove along posterior margin (Fig. 2D). Abdomen with paired setal tufts on ventrite 4 (Figs. 3A, D, F). Sternite VIII elongate (L 0.64 mm), with a pair of subparallel apodemes fused basally; tergite VIII very long (L 1.30 mm), apical portion subtrapezoidal; ovipositor long (L 1.45 mm), branchlets absent, coxites membranous, triangularly elongate, not covered with setae, styli missing in the studied specimen (Fig. 4A, B). Bursal sclerite (Fig. 4C) small (L 0.45 mm), subconical, densely covered with spines. Measurements and ratios. N=2: TL 2.01–2.33 (2.17), PL 0.50–0.53 (0.52), PW 0.77–0.80 (0.79), EL 1.67– 1.77 (1.72), EW 1.10–1.17 (1.14), TL/EW 1.8–2.0 (1.9), PW/PL 1.5, EL/EW 1.5, EL/PL 3.3.Published as part of Ruta, Rafał & Yoshitomi, Hiroyuki, 2018, Description of females of Chilarboreus Ruta, 2011 (Coleoptera: Scirtidae: Scirtinae), pp. 265-274 in Zootaxa 4388 (2) on pages 266-268, DOI: 10.11646/zootaxa.4388.2.8, http://zenodo.org/record/118798
Meatopida testacea Kiałka & Ruta 2018, new combination
No full textMeatopida testacea (Broun, 1880), new combination (Figs 1C–D, 2A–B, 3, 4A, 4C, 6, 7A, 11–13) Atopida testacea Broun 1880: 314 Type material. Lectotype (present designation), male (NHM): “ New Zealand \ Broun Coll. \ Brit. Mus. \ 1922– 482.”, “565”, “var.”, “SYN- \ TYPE ”, “ LECTOTYPE \ Atopida testacea \ Broun, 1880 \ des. Kiałka & Ruta ‘17” [red label, printed]; paralectotype (present designation), male (NHM): “ Atopida \ testacea.”, “ New Zealand \ Broun Coll. \ Brit. Mus. \ 1922–482.”, “Parua”, “565”, “SYN- \ TYPE ”, “ PARALECTOTYPE \ Atopida testacea \ Broun, 1880 \ des. Kiałka & Ruta ‘17” [red label, printed]. Other material examined. 2 males (NHM): Waitakerei, Broun Coll., 1922–482, [with note: “Lab. palpi \ furcate.”]; female (NHM): BP, Mt. Te Aroha, forest litter, 930–950m., 12– 13.11.1983, B. M. 1984–80, P. M. Hammond; 2 males (CMNC): North Is., Huia, 17–27.XI.1981, H & A Howden; 1 male (NHM): ND (CL 85), Waipoua SF, Waipoua Riv, beating Melicytus ramiflora, 31.x.1985, C & J Lyal, BM 1986–274; 4 males (NHM): ND (CL 58), Waipoua SF, Tanemahuta Stream, beating Blechnum capense at night, 29.10.1985, C & J Lyal BM 1986–274; 1 ex. (NHM): ND (CL 55), Omapere, general beating, 30.10.1985, C & J Lyal, BM 1986–274; 1 ex. (NHM): ND (CL 77), Waipoua SF, Waipoua Riv, Ricker Track, beating Metrosideros albiflora, 31.10.1985, C & J Lyal, BM 1986–274; 3 males (DBET): ND 31, Trounson Kauri Park, -35.7221°, 173.6470°, 240 m, beating, 8.12.2016, leg. A. Kiałka, R. Leschen & R. Ruta; 10 exx. (DBET): ND 24, Waipoua Forest, Yakas Track, 7.12. 2016, 300 m, beating, leg. A. Kiałka, R. Leschen & R. Ruta; 1 male (DBET): ND 23, Waipoua Forest, Tane Mahuta, -35.6005°, 173.5271°, 320 m, 7.12.2016, leg. A. Kiałka, R. Leschen & R. Ruta; 3 females, 2 males (DBET): ND 25, Waipoua Forest, Yakas Track, 300 m, litter sample, 7.12.2016, leg. A. Kiałka, R. Leschen & R. Ruta; 1 ex. (NZAC): Opononi Manuka, 1, 2.12.1944, B. Given.; 3 exx. (NZAC): Bay of Islands, Waikere, leaf litter, 12.10.1967, R. A. Cumber; 1 ex. (NZAC): ND, Waipoua Forest, 25.11.1994, Ex. John Nunn Coll.; 4 exx. (NZAC): Waipoua Forest, 1270’, 24.12.1968, R. Petty; 1 ex. (NZAC): AK, Piha, beaten ex Podocarpus ferrugineus, 6.11.1979, C. F. Butcher; 1 ex. (NZAC): ND, Waipoua SF, Toronui Track, sifted wood and litter, 30.10.1980, G. Kuschel, 80/95; 1 ex. (NZAC): ND, Waipoua SF, Lookout, 29.10.1980, G. Kuschel; 2 exx. (NZAC): ND, Waipoua Forest, in leaf litter, 24.11.1994, Ex. John Nunn Coll.; 1 ex. (NZAC): Waipoua S. F., Tane Mahuta, beating shrubs at night, 12.10.1967, J. C. Watt; 1 ex. (NZAC): Waimatenui, N. AK., 10. 12.1957,.eg. Brooks, A. E. Brooks Coll.; 2 exx. (NZAC): ND, Waipoua S. F., Te Matua Ngahere, beating, 14.10.1967, J. S. Dugdale; 4 exx. (NZAC): Mangamuka Sdle, 1250, litter, 5.11.1967, J. I. T. & J. McB.; 19 exx. (NZAC): ND, Warawara St Forest, Hauturu Stm, -35.4008°, 173.3138°, FIT 3, 8– 13.12.2008, R. Leschen, T. Buckley, D. Seldon, RL1442; 3 exx. (AMNZ): ND, Trounson Kauri Park, kauri forest remnant, swept, 240 m, 0 1.11.2000, J. W. Early, R. F. Gilbert, L8943; 1 ex. (AMNZ): North Island, Mangonui Co., Forest N. side, Mangamuka hills, 300m., 19.11.1966, K. A. J. Wise; 1 ex. (AMNZ): North Island, Waitakere, Waitemata Co. Diagnosis. Body TL 2.4–2.7 mm, covered with adherent or suberect setae, elytra subtly darkened along suture. Apical portion of female elytra without excitators. Trigonium distinctly longer than parameroids. Prehensor with a Y-shaped lighter coloured area. Redescription. Male. Body elongated (Fig. 1C), small, moderately convex. Body yellowish brown, elytra with subtly darkened, brownish suture, legs slightly lighter. Punctation on head and pronotum granulate, strong and dense, distance between punctures 0.5 diameter at most, punctation on elytra simple, distance between punctures 0.7–1.0 diameter. Body covered with rather short yellowish, strongly adherent setae. Penis (Fig. 11A): trigonium bifurcate, very narrow, longer than parameroids; pala oval, base semicircular, emarginate, slightly longer than parameroids; parameroids curved inwards, narrow, apices acute (L 0.65 mm, W 0.23 mm). Tegmen (Fig. 11B) oval with narrow, pointed parameres with serrated outer edges and slightly hooked projections in middle and cuticular ring at base (L 0.49 mm, W 0.39 mm). Tergite VIII (Fig. 11C) rectangular with rather distinct apodemes, numerous short setae in apical part (L 0.41 mm, W 0.37 mm); tergite IX (Fig. 11D) rectangular with membranous apical part, almost devoid of setae, with long apodemes (L 0.41 mm, W 0.33 mm). Sternite VIII (Fig. 11E) transversely rectangular, U-shaped with very few setae and punctures concentrated on apical margin, distinctly wider than long (L 0.21 mm, W 0.41 mm); sternite IX (Fig. 11F) triangular, 2× wider than long, weakly sclerotized, apical part covered with medium length setae, apodemes not visible (L 0.19 mm, W 0.39 mm). Female (Fig. 1D). Eyes small, tempora much longer than diameter of eye. Elytra without depressions in apical portion, covered with suberect setae. Hind wings with shortened apical field (Fig. 5). Tergite VIII long (L 0.97 mm), with paired apodemes, few setae and punctures in apical part; sternite VIII shorter (L 0.63 mm), with paired apodemes which are connected at base, setae and few punctures in apical part, basal part delicately emarginated; ovipositor (Fig. 12A) long (L 1.40 mm); prehensor (Fig. 12C) dorsoventrally flattened, elongate oval (L 0.67 mm, W 0.42 mm), massive, strongly sclerotized, covered densely with numerous setae, dorsal portion with Y-shaped, lighter coloured median area, sides with strong spine-like setae, ventral portion more membranous, with V-shaped sclerotization, posterior area membranous, with a few small sclerites. Variation. In some specimens elytral suture is not darkened. Broun (1880) noted a remarkable variability of the morphology of the labrum within the series of four specimens from Parua: two had a prominent labrum, and in two the labrum was little exposed. No significant differences in the proportions of labrum were noted in specimens studied by the authors of the present paper. Measurements and ratios. Males (n = 6) TL 2.40–2.67 mm (2.56 mm), PL 0.43–0.50 mm (0.48 mm), PW 0.73–0.83 mm (0.79 mm), EL 2.07–2.17 mm (2.10 mm), EW 1.13–1.27 mm (1.19 mm), TL/EW 2.06–2.29 (2.18), PW/PL 1.60–1.71 (1.65), EL/EW 1.71–1.88 (1.78), EL/PL 4.20–4.62 (4.35). Female (n = 1) TL 2.60 mm, PL 0.50 mm, PW 0.82 mm, EL 2.10 mm, EW 1.13 mm, TL/EW 2.29, PW/PL 1.63, EL/EW 1.85, EL/PL 4.20. Biology. Data on the biology of M. testacea is restricted to collecting circumstances. Most specimens were collected in forests, and were especially common in mixed angiosperm-conifer forest with kauri (Agathis australis) (Fig. 14). Females were often collected by sifting leaf litter. Distribution. New Zealand, North Island: Northland (Parua, Waipoua), Auckland (Huia, Waitakere), Waikato (Mt. Te Aroha) (Fig. 15).Published as part of Kiałka, Agata & Ruta, Rafał, 2018, Meatopida gen. nov., a new genus to accommodate two species originally described in Atopida White, 1846 (Coleoptera: Scirtoidea: Scirtidae), pp. 242-260 in Zootaxa 4382 (2) on pages 250-256, DOI: 10.11646/zootaxa.4382.2.2, http://zenodo.org/record/118201
Beamlike models for the analyses of curved, twisted and tapered horizontal-axis wind turbine (HAWT) blades undergoing large displacements
No full textContinuous ongoing efforts to better predict the mechanical behaviour of complex beamlike structures, such as wind turbine blades, are motivated by the need to improve their performance and reduce the costs. However, new design approaches and the increasing flexibility of such structures make their aeroelastic modelling ever more challenging. For the structural part of this modelling, the best compromise between computational efficiency and accuracy can be obtained via schematizations based on suitable beamlike elements. This paper addresses the modelling of the mechanical behaviour of beamlike structures which are curved, twisted and tapered in their unstressed state and undergo large displacements, in- and out-of-plane cross-sectional warping, and small strains. A suitable model for the problem at hand is proposed. Analytical and numerical results obtained by its application are presented and compared with results from 3D FEM analyses
Una nuova lamina figurata da Padova: un unicum?
No full textSi analizza una lamina, rinvenuta a Padova nel 1991, con raffigurazione di una teoria processionale 16 personaggi, nove uomini e sette donne in abbigliamento cerimoniale. La lamina contribuisce a ridimensionare il vuoto documentario di manifestazioni di arte delle situle a Padova. La esegesi della figurazione consente alcune considerazioni in merito alla religiosità patavina, da sempre considerata diversa da quella atestina e forse meno appariscente nella sua fenomenologia, ma non per questo meno ricca ed articolata. L’analisi stilistica e dei dettagli antiquari consente un inquadramento cronologico al III sec. a.C. e un possibile riferimento a celebrazioni cerimoniali pubbliche, forse a carattere iniziatico
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