295 research outputs found
Radiocarbon (14C) age data of sediment core GeoB5546-2
No full textSee also Kuhlmann et al. (2004) dataset: doi:10.1594/PANGAEA.20815
Patellapis (Chaetalictus) timpageleri Timmermann & Kuhlmann 2009, sp. n.
No full text<i>Patellapis (Chaetalictus) timpageleri</i> sp. n. Timmermann <p>(Figs. 108a–g; 109a–h)</p> <p> <b>Diagnosis.</b> The male differs from those of <i>P. sakagamii</i> and <i>P. pulchrinitens</i> in having the clypeus and supraclypeal area densely punctate, whereas <i>P. sakagamii</i> and <i>P. pulchrinitens</i> have a highly polished face with well separated fine punctures on clypeus and supraclypeal area. The male of <i>P. renosterveldi</i> differs from <i>P. timpageleri</i> in the scutal surface, which is completely reticulate in <i>P. renosterveldi</i> and at most partly reticulate anteriorly in <i>P. timpageleri</i>. The male of <i>P. minima</i> is clearly separated from all other species of this species-group in having no hairs on the dorso-lateral projection of the gonostylus. The male of <i>P. spinulosa</i> can be distinguished from that of <i>P. timpageleri</i> by having the scutal surface more sparsely punctate (i= 2,0d) than in <i>P. timpageleri</i> (i= 1,5d). The female of <i>P. timpageleri</i> is similar to that of <i>P. spinulosa</i>. Both can be distinguished by the punctation of the scutum, which is more densely punctate in <i>P. timpageleri</i> (i= 1,5d) than in <i>P. spinulosa</i> (i= 2,0d). Females of all other species belonging to this species-group differ from <i>P. timpageleri</i> in having the scutum completely reticulate.</p> <p> <b>Description</b></p> <p> <b>Female</b>. Bl = 4,4–4,8mm. General habitus (Fig. 108e). <b>Head</b>. L = 1,3–1,4mm; W = 1,5–1,6mm. Head slightly wider than long (Fig. 108a). Integument black except mandibles sometimes partly reddish-brown. Face shiny and with loose, greyish, erect hairs. Mandibles bidentate. Clypeus and supraclypeal area convex in profile. Clypeus strongly and sparsely punctate; surface shiny. Clypeoantennal distance 0,3mm. Supraclypeal area with well separated minute punctures; surface sometimes finely chagreened. Paraocular area moderately strongly and densely punctate; surface partly sculptured. Antennae brownish-black. <b>Mesosoma</b>. L = 0,9–1,0mm; W (ITS) = 1,1–1,2mm. Integument black. Scutum shiny; surface often finely chagreened anteriorly; disc strongly and moderately densely punctate (i = 1,5d) (Fig. 108b). Scutellum as illustrated in Fig. 108c. Scutum, scutellum, metanotum, mesepisternum and propodeum with long, greyish to pallid yellowish, erect hairs. Basal area of propodeum as illustrated in Fig. 108c; propodeum slightly dull, with well separated minute punctures; surface completely sculptured. Marginal region of posterior truncation slightly dull; variable structure of surface, but often reticulate. <b>Wings</b>. Hyaline. <b>Legs</b>. Integument brownish-black. Vestiture greyish to yellowish. Ts finely serrate (Fig. 108f). Bp slender; angulated apically (Fig. 108g).</p> <p> <b>Metasoma</b>. L = 2,6–2,7mm; W = 1,6–1,7mm. Integument black except the margins of T pallid brownish and pallid yellowish (usually T1–T3); margins partly translucent. Apical hair bands on metasomal terga absent (sometimes they are weakly present on T3–T4). Prepygidial fimbria mostly yellowish-brown. Metasomal terga as illustrated in Fig. 108d.</p> <p> <b>Male</b>. Bl = 4,4–4,9mm. General habitus (Fig. 109f). <b>Head</b>. L = 1,3–1,5mm; W = 1,3–1,4mm. Head about as wide as long (Fig. 109a). Integument black except mandibles sometimes partly reddish-brown. Clypeus, supraclypeal area, paraocular area and vertex covered with erect, greyish hairs; paraocular area, supraclypeal area and clypeus also covered with appressed, whitish hairs. Mandibles simple. Antennae brownish-black. Flagellomeres of normal structure, not knotty. A4 about as long as A3. <b>Mesosoma</b>. L = 0,8–0,9mm; W (ITS) = 1,0– 1,1mm. Integument black. Scutum shiny; strongly and moderately densely punctate (i = 1,5d); surface slightly chagreened anteriorly (Fig. 109b). Scutellum as illustrated in Fig. 109c. Scutum, scutellum,metanotum, mesepisternum and propodeum with long, greyish, erect hairs. Basal area of propodeum as illustrated in Fig. 109c; propodeum slightly dull, strongly and densely punctate; surface coarsely sculptured. Marginal region of posterior truncation slightly dull; variable in structure, but often coarsely sculptured. <b>Wings</b>. Hyaline. <b>Legs</b>. Integument brownish-black. Vestiture greyish. <b>Metasoma</b>. L = 2,4–2,6mm; W = 1,5–1,6mm. Integument black except the margins of T pallid brownish; margins partly translucent. Metasomal terga as illustrated in Fig. 109d. Apical plate broad; rounded apically. Posterior margin of S4 simple, without erect bristles. Metasomal sterna S5–S6 without dense hair patches (Fig. 109e). S7 and S8 as illustrated in Fig. 109h. <b>Genitalia</b>. Genitalia as illustrated in Fig. 109g; gonocoxa dull; gonostylus with dorso-lateral, hyaline projection; projection with pennate hairs ventrally (usually 6–8 small, erect hairs).</p> <p> <b>Type material</b> (223 specimens). Holotype, male, South Africa, Northern Cape, Nieuwoudtville Flower Reserve, dolerite flats, S31°22'10,8" / E19°08'50,2" 750m, nesting site, 16.viii.2007, leg. K. Timmermann, SANC.</p> <p>Paratypes: 90♀, 132♂. South Africa. Northern Cape: 2♀, 2♂, Nieuwoudtville Flower Reserve, 26.viii.2006, leg. K. Timmermann, KTPC; 3♀, Nieuwoudtville, Flower Reserve, Rondell, Car Park East, 16.x.2006, leg. M. Kuhlmann, KTPC; 2♀, idem., 19.x.2006, KTPC; 2♂, idem., 20.viii.2007, leg. K. Timmermann, KTPC; 10♂, Nieuwoudtville, Flower Reserve, dolerite flats, 16.viii.2007, leg. K. Timmermann, KTPC; 5♀, 22♂, idem., 17.viii.2007, KTPC; 1♀, 1♂, idem., 20.viii.2007, KTPC; 1♂, Nieuwoudtville, Flower Reserve, dolerite hills, 17.viii.2007, leg. K. Timmermann, KTPC; 15♀, 1♂, Nieuwoudtville, pad to Farm Glenlyon (road to R27), 17.ix.2007, leg. K. Timmermann, KTPC; 5♀, idem., 20.ix.2007, KTPC; 2♀, 4♂, Nieuwoudtville, pad to Farm Glenlyon (road to R27), slope, 18.viii.2007, leg. K. Timmermann, KTPC; 4♀, 27♂, idem., 19.viii.2007, KTPC; 50♀, 62♂, idem., 02.ix.2007, KTPC; 1♀, 1♂, idem., 03.ix.2007, KTPC.</p> <p> <b>Etymology.</b> This species is dedicated to Tim Pageler, Friedeburg (* 01.ii.1978).</p> <p> <b>Distribution</b> (Fig. 110). Records only exist from Nieuwoudtville and its surrounding area (Northern Cape).</p> <p> <b>Floral visitation.</b> <i>Senecio spec.</i> (Asteraceae).</p> <p> <b>Seasonal activity</b> (first–last observations). viii–x.</p> <p> <b>Remarks.</b> This species is treated as <i>Chaetalictus</i> new species 2 in Timmermann and Kuhlmann (2008b).</p>Published as part of <i>Timmermann, Kim & Kuhlmann, Michael, 2009, Variable Selection and Inference for Multi-period Forecasting Problems, pp. 1-188 in Zootaxa 2099</i> on pages 153-156, DOI: 10.17863/cam.5647, <a href="http://zenodo.org/record/5311462">http://zenodo.org/record/5311462</a>
Hardy type derivations on fields of exponential logarithmic series
No full textAbstractWe consider the valued field K:=R((Γ)) of formal series (with real coefficients and monomials in a totally ordered multiplicative group Γ). We investigate how to endow K with a logarithm l, which satisfies some natural properties such as commuting with infinite products of monomials. We studied derivations on K (Kuhlmann and Matusinski, in press [KM10]). Here, we investigate compatibility conditions between the logarithm and the derivation, i.e. when the logarithmic derivative is the derivative of the logarithm. We analyze sufficient conditions on a given derivation to construct a compatible logarithm via integration of logarithmic derivatives. In Kuhlmann (2000) [Kuh00], the first author described the exponential closure KEL of (K,l). Here we show how to extend such a log-compatible derivation on K to KEL
Ökonomische Potenziale in der Sportentwicklung
No full textBreuer C, Pawlowski T, Wicker P. Ökonomische Potenziale in der Sportentwicklung. In: Balz E, Kuhlmann D, eds. Sportentwicklung - Grundlagen und Facetten. Sportentwicklung in Deutschland. Vol 21. Aachen: Meyer & Meyer; 2009: 89-106
Reconstitution of SNARE proteins into solid-supported lipid bilayer stacks and X-ray structure analysis.
No full textSNAREs are known as an important family of proteins mediating vesicle fusion. For various biophysical studies, they have been reconstituted into supported single bilayers via proteoliposome adsorption and rupture. In this study we extended this method to the reconstitution of SNAREs into supported multilamellar lipid membranes, i.e. oriented multibilayer stacks, as an ideal model system for X-ray structure analysis (X-ray reflectivity and diffraction). The reconstitution was implemented through a pathway of proteomicelle, proteoliposome and multibilayer. To monitor the structural evolution in each step, we used small-angle X-ray scattering for the proteomicelles and proteoliposomes, followed by X-ray reflectivity and grazing-incidence small-angle scattering for the multibilayers. Results show that SNAREs can be successfully reconstituted into supported multibilayers, with high enough orientational alignment for the application of surface sensitive X-ray characterizations. Based on this protocol, we then investigated the effect of SNAREs on the structure and phase diagram of the lipid membranes. Beyond this application, this reconstitution protocol could also be useful for X-ray analysis of many further membrane proteins
Radiocarbon ages and calibrated ages of sediment core GeoB5546-2
No full textRadiocarbon ages and calibrated ages of sediment core GeoB5546-
Radiocarbon ages and calibrated ages of sediment core GeoB6007-2
No full textmixed planktic foraminifera containing surface species: G. bulloides, G. sacculifer, G. calida, G. ruber, G. falconensis, G. rubescens, T. quinqueloba, O. univer
Potassium measured with X-ray fluorescence core scanner on sediment core GeoB5546-2
No full textTo obtain statistically significant data of K a 30 s count time was used and an X-ray current of 0.087 mA. The acquired XRF spectrum for each measurement was processed by the KEVEXTM software Toolbox
On generalized series fields and exponential-logarithmic series fields with derivations
No full textWe survey some important properties of fields of generalized series and of exponential-logarithmic series, with particular emphasis on their possible differential structure, based on a joint work of the author with S. Kuhlmann [KM12b,KM11]
The tree of performance knowledge:Eugenio Barba
No full textLedger and Kuhlmann take as their point of departure Odin Teatret’s Clear Enigma, performed once only at the group’s fiftieth anniversary (2014), to suggest the roots of an original historiographic approach, or shape, to a discussion of Barba’s work. Embracing Barba’s occasionally paradoxical approaches, the authors’ non-chronological, rhizomatic-like account unfolds from a central concern with Barba’s production The Tree (2016), providing a point of connection to the various ‘branches’ of his work since 1964. Barba’s understanding of dramaturgy as a keyword for theatre making is set against the ‘Country of Speed’ and a landscape metaphor for the exilic condition of ‘Third Theatre’ organisations. Barba’s intercultural practices are assessed, and the chapter considers Barba’s status as a researcher and author, published in multiple languages. The authors incorporate notions of the ‘living archive’ and legacy, but Barba’s theme of death, a paradoxical condition of theatrical life, concludes the chapter
- …
