109,763 research outputs found
Hedonismus als zentrales Motiv zur Stimmungsregulierung durch Medien? Eine Reflexion der Mood-Management-Theorie Zillmanns
No full textFormulas for the h-mass on 1-currents with coefficients in
No full textAbstract We consider the minimization of the h -mass over normal 1-currents in R n with coefficients in R m and prescribed boundary. This optimization is known as multi-material transport problem and used in the context of logistics of multiple commodities, but also as a relaxation of nonconvex optimal transport tasks such as so-called branched transport problems. The h -mass with norm h can be defined in different ways, resulting in three functionals M h , | · | H , and M h , whose equality is the main result of this article: M h is a functional on 1-currents in the spirit of Federer and Fleming, norm | · | H denotes the total variation of a Radon measure with respect to H induced by h , and M h is a mass on flat 1-chains in the sense of Whitney. On top we introduce a new and improved notion of calibrations for the multi-material transport problem: we identify calibrations with (weak) Jacobians of optimizers of the associated convex dual problem, which yields their existence and natural regularity.Deutsche Forschungsgemeinschaft http://dx.doi.org/10.13039/501100001659Japan Society for the Promotion of Science http://dx.doi.org/10.13039/50110000169
Beitraege zur Theorie der Abbildungen durch reciproke radii vectores
No full textvon Professor H. Wirth[1907. Progr. Nr. 194
Dasyhelea luteogrisea Wirth & Williams
No full textDasyhelea luteogrisea Wirth & Williams Dasyhelea luteogrisea Wirth & Williams, 1957: 10 (Bermuda; Bahamas; Florida & Texas); Davies & Giglioli 1979: 592 (Grand Cayman); Wilkening et al. 1985: 518 (Florida records); Borkent & Spinelli 2000: 25 (in New World catalog south of the USA; distribution); Borkent & Spinelli 2007: 60 (in Neotropical catalog; distribution). Diagnosis. Males and females are nearly morphologically identical to males and females of D. grisea but differ from that species in being yellowish overall, but, males have a dark brown gonostylus. Discussion. Wirth & Williams (1957) described this yellowish relative of D. grisea from Bermudae (type locality), the Bahamas, and coastal sites in Florida, Louisiana and Texas. Wirth & Williams noted that “ This species is evidently a salt marsh relative of Dasyhelea grisea (Coquillett), with which it occasionally occurs, but without showing evidence of interbreeding.” Wilkening et al. (1985) listed Florida records from Miami-Dade, Levy, Monroe and Palm Beach counties. We compared a male and female from Guadeloupe that apparently belong to this species with Florida specimens from Levy and Monroe counties and 3 male and 3 female paratypes from Bermuda borrowed from the USNM. Material examined. Guadeloupe, Basse Terre, Traces de Cretes (D-14), 22-V-2012, R. H. Turnbow, BL trap, 1 male, 1 female. New Guadeloupe record.Published as part of Grogan, Willliam L., Díaz, Florentina, Spinelli, Gustavo R. & Ronderos, Maria M., 2016, The biting and predaceous midges of Guadeloupe (Diptera: Ceratopogonidae). II. Species of the subfamily Dasyheleinae, pp. 201-254 in Zootaxa 4184 (2) on page 210, DOI: 10.11646/zootaxa.4184.2.1, http://zenodo.org/record/16471
Unterhaltungserleben in virtuellen Medien. Die Rolle von Mediengemeinschaften und Personenmerkmalen beim Entstehen von Spital Presence
No full textNetzwerk
No full textHolzer B. Netzwerk. In: Wirth JV, Kleve H, eds. Lexikon des systemischen Arbeitens. Grundbegriffe der systemischen Praxis, Methodik und Theorie. Heidelberg: Carl‐Auer‐Systeme Verlag; 2012: 280-283
Culicoides owyheensis Jones and Wirth
No full textCulicoides owyheensis Jones and Wirth Culicoides owyheensis Jones and Wirth, 1978: 57 (misspelled as owyheenis; key; female; Idaho). Wirth et al. 1985: 36 (numerical characters; fig. female wing). Diagnosis. (Tables 14, 15, 17, 18) Brown with some yellow; wing without pattern of pale spots (as in Fig. 3 C. stonei); two sclerotized ovoid spermathecae and fingerlike vestigial third (as in Fig. 45 C. stonei); posterior portion of female sternite 8 cleft, with blunt submedian posterior projections (as in Fig. 45 C. stonei); ventroposterior membrane of male sternite 9 spiculate; aedeagus Y-shaped, median process stout, short, blunt, half as long as basal arms; parameres separate, simple, apex curved hooklike (as in Fig. 41 C. mortivallis). To distinguish from C. mortivallis, ratios to length of flagellomere 9:>1.50 for flagellomeres 7+8,>3.95 for proboscis,>1.90 for palpal segment 3. Distribution. Idaho (Owyhee County), Utah (Grand County). Adult behavior. R. H. Jones and H. W. Potter Jr. collected females from the ear of a sheep prostrate with bluetongue in Idaho (Jones and Wirth 1978). However, I think that C. owyheensis may be a junior synonym of C. mortivallis, and the record may be for that species. Remarks. Using the measurement ratios from Wirth and Jones (1978: 57), 2 of 17 specimens recognized as either C. owyheensis or C. mortivallis based on SCo pattern were identified as C. owyheensis (Table 18). See also Stonei group discussion.Published as part of Phillips, Robert A., 2022, Culicoides Latreille and Leptoconops Skuse biting midges of the southwestern United States with emphasis on the Canyonlands of southeastern Utah (Diptera: Ceratopogonidae), pp. 1-214 in Insecta Mundi 2022 (907) on page 114, DOI: 10.5281/zenodo.639168
Culicoides (Culicoides) neopulicaris Wirth 1955
No full textCulicoides (Culicoides) neopulicaris Wirth Culicoides neopulicaris Wirth, 1955a: 355 (Texas, USA). Culicoides (Culicoides) neopulicaris: Vargas 1960: 39 (in list of New World species in subgenus Culicoides). Discussion. The type locality of this species is Kerrville, Kerr County, Texas, but in his original description, Wirth (1955a) also identified four females from San Luis Potosí, Mexico that he did not designate as paratypes. Subsequently, Wirth and Blanton (1969) revised the pulicaris group in North America and identified additional specimens of C. neopulicaris from Chiapas, Morelos and Veracruz, Mexico and other material from Costa Rica and El Salvador. In their Nearctic wing atlas, Wirth et al. (1985) also listed this species from Louisiana, USA. We provide the first records from the states of Hidalgo, México and Yucatán, and additional records from Chiapas, Morelos and Veracruz. New records. Chiapas, Punta Macuilapa, 22 May 1964, 1 female (FSCA). Hidalgo, Tlanchinol, Carretera Tlanchinol-Apantlazol, 4 km, 11 March 1997, S. B. Salceda, J. Blackaller and G. A. Pérez, Malaise trap, 1 male (FSCA). México, Otumba, Coyotepec, 24 August-14 September 2007, Z. D. Hdez., Malaise trap, 1 female. Morelos, El Salto Falls, 17 June 1969, W. & D. Hasse, light trap, 44 females (FSCA). San Luis Potosí, El Salto Falls, 9 May 1964, 2 females; same data except April 1965, H. V. Weems, 1 female; same data except 21 April 1965, 1 female (FSCA). Veracruz, Actopan, Soyacuautla, 15 May 2008, Entomological brigade JS IV, CDC UV trap, 2 females; Emiliano Zapata, Chavarrillo, 14 May 2008, CDC UV trap, 3 females; same data except 3 September 2008, Entomological brigade JS IV, 2 females; Juchique de Ferrer, Los Arroyos, 5 February 2009, CDC trap, 1 female; same data except 18 February 2010, Entomological brigade JS IV, Malaise trap, 1 female; Atzalan, Plan de Arroyos, 19 May 2009, Entomological brigade JS IV, CDC trap, 2 females; Vega de Alatorre, Emilio Carranza, 8 September 2009, Entomological brigade JS IV, CDC trap, 1 female; Misantla, Paso Blanco, 23 February 2010, Entomological brigade JS IV, Malaise trap, 1 female. Yucatán, Celestun, near Ecoparaíso, 22-25 Jul 1998, H. Huerta & R. C. Pérez, Malaise trap, 1 male; Reserva Ría Lagartos, 8 July 1997, H. Huerta, S. P. Manrique & R. R. Paz, Malaise trap, 1 male.Published as part of Huerta, Rodríguez, Ana M., William L. Grogan, Jr. & Ibáñez-Bernal, Sergio, 2012, New records of biting midges of the genus Culicoides Latreille from Mexico (Diptera: Ceratopogonidae), pp. 1-20 in Insecta Mundi 2012 (211) on page 7, DOI: 10.5281/zenodo.517416
Bezzia (Bezzia) mallochi Wirth
No full textBezzia (Bezzia) mallochi Wirth Bezzia (Pseudobezzia) mallochi Wirth, 1951: 323 (Virginia); Dow and Turner 1976: 51 (revision of Nearctic Bezzia; distribution). Bezzia (Bezzia) mallochi: Borkent and Grogan 2009: 26 (in Nearctic catalog; distribution). Discussion. The following specimens from Liberty and Santa Rosa counties are apparently the first records of this species from Florida (Borkent and Grogan 2009). New records. Liberty Co., Torreya St. Park, 20-V-1966, H. V. Weems, 1 male (USNM). Santa Rosa Co., Jay, May 1962, T. W. Boyd, lt. trap, 1 female (USNM). New Florida state record.Published as part of William L. Grogan, Jr., Hribar, Lawrence J., Murphree, C. Steven & Cilek, James E., 2010, New records of biting and predaceous midges from Florida, including species new to the fauna of the United States (Diptera: Ceratopogonidae), pp. 1-59 in Insecta Mundi 2010 (147) on page 48, DOI: 10.5281/zenodo.535290
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