124,870 research outputs found
Arctocypris Petkovski, Scharf & Keyser, 2016, n. gen.
No full textGenus Arctocypris n. gen. Diagnosis (Figs 2–5). Relatively small (0.8 to 1.2 mm) species. Carapace in lateral view subtriangular, greatest height in front of the middle, slightly more than half of the total length. Anterior margin broad, posterior margin narrower, but rounded. Ventral margin slightly concave with a rounded expansion in the mouth area, and slightly enlarged frontally. In dorsal view carapace oval, anterior end pointed, posterior bluntly rounded. Lateral sides only slightly arched. LV overlaps RV along entire free margin. Two conspicuous inner lists running parallel on the inner calcified lamella, more pronounced in the anterior part. Maxillary palp with cylindrical terminal palp segment, about twice as long as broad. Two teeth setae of the third maxillary endite serrate. Maxilliped (T 1) with c-seta. Walking leg (T 2) with only one seta (d 1) at the basal segment. Included species: Type species: Arctocypris fuhrmanni n. gen., n. sp. Other species: A. arctica (Olofsson, 1918) comb. nov; A. foveata (Delorme, 1968) comb. nov.; A. dulcifons (Diebel & Pietrzeniuk, 1969) comb. nov.Published as part of Petkovski, Trajan K., Scharf, Burkhard & Keyser, Dietmar, 2016, Arctocypris fuhrmanni, n. gen., n. sp. (Crustacea, Ostracoda, Eucypridinae) from Spitsbergen (Norway), pp. 152-160 in Zootaxa 4066 (2) on page 154, DOI: 10.11646/zootaxa.4066.2.3, http://zenodo.org/record/25894
FIGURE 2. Arctocypris fuhrmanni n. gen., n in Arctocypris fuhrmanni, n. gen., n. sp. (Crustacea, Ostracoda, Eucypridinae) from Spitsbergen (Norway)
No full textFIGURE 2. Arctocypris fuhrmanni n. gen., n. sp. A ─left valve; B ─right valve.Published as part of Petkovski, Trajan K., Scharf, Burkhard & Keyser, Dietmar, 2016, Arctocypris fuhrmanni, n. gen., n. sp. (Crustacea, Ostracoda, Eucypridinae) from Spitsbergen (Norway), pp. 152-160 in Zootaxa 4066 (2) on page 154, DOI: 10.11646/zootaxa.4066.2.3, http://zenodo.org/record/25894
Arctocypris fuhrmanni, n. gen., n. sp. (Crustacea, Ostracoda, Eucypridinae) from Spitsbergen (Norway)
No full textPetkovski, Trajan K., Scharf, Burkhard, Keyser, Dietmar (2016): Arctocypris fuhrmanni, n. gen., n. sp. (Crustacea, Ostracoda, Eucypridinae) from Spitsbergen (Norway). Zootaxa 4066 (2): 152-160, DOI: http://dx.doi.org/10.11646/zootaxa.4066.2.
L'industrie du diamand à Cuba
No full textScharf Theo. L'industrie du diamand à Cuba. In: Annales de Géographie, t. 58, n°309, 1949. pp. 62-64
Arctocypris fuhrmanni Petkovski, Scharf & Keyser, 2016, n. gen.
No full textArctocypris fuhrmanni n. gen., n. sp. (Figs 2–5) Etymology. The species is named in honour of the ostracod researcher Roland Fuhrmann, Leipzig, Germany. Holotype. 1 female Nr. ZMH K- 42963 Paratypes. 40 females Nr. ZMH K- 42964 Type locality. ‘Thorshühnchen-Teich’, a pond on the island Måkeøyane in the Liefdefjord (Northern Spitsbergen, Svalbard, Norway). Collected by H.-J. Spitzenberger in August 1990 and August 1991. Material examined. 41 adult females, mostly decalcified and slightly or strongly macerated. Associated fauna: In the sample of August 13, 1991 from ‘Thorshühnchen-Teich’ 2 females of Tonnacypris glacialis (Sars, 1890) and 1 female of Fabaeformiscandona sp. Description (Figs 2–5): Carapace. LV (Figs 2 A, 5): In lateral view dorsal margin blunt at point of greatest height, slightly bulged antero-dorsally. Anterior margin broadly rounded. Dorsal margin also slightly bulging postero-dorsally and with small indentation. Posterior margin narrower than anterior. Ventral margin slightly indented and bulging around mouth region. Surface covered with distinct, rounded depressions, frontally with small wart-like pores. Whole carapace with simple open pores. Calcified inner lamella broader anteriorly than posteriorly. Inner list more elevated in the anterior than in the posterior. Selvage peripheral, fused zone anteriorly broader than posteriorly. RV (Figs 2 B and 5): In lateral view nearly triangular. Greatest height frontal from the middle, higher than half of the length. Dorsal margin bluntly angled at point of greatest height, slightly sloping towards frontal end, then gently indented and extending into the broadly rounded frontal margin. Dorsal margin more inclined towards posterior than towards anterior end, postero-dorsally with small indentation. Posterior end narrow. The ventral margin slightly concave and enlarged around mouth. Surface ornamentation as on LV. An outer list exists and is running parallel to the flange. Two parallel inner lists present more pronounced on the anterior calcified inner lamella than on the posterior one. Calcified inner lamella wider anteriorly than posteriorly. Fused zone broader anteriorly than posteriorly. Selvage peripheral. Dimension. Length: 1.04–1.09 mm, height: 0.57–0.59 mm, width: 0.53 mm. Antennula (A 1) (Fig. 3 A): 7 -jointed, distal segments 5, 6, 7 with very long distal setae. The length of the distal setae is about twice the length of the distal 6 segments. Rome organ present. Ya present; Wouter’s organ or a seta at that place not visible. Antenna (A 2) (Figs 3 B,C): Distal claws rather strong. G 1 slightly longer than G 2 and G 3 and 120 % of length of penultimate segment. GM about three times as long as ultimate segment. Gm and g about twice as long as ultimate segment, y 3 about half the length of Gm and g. Z 1-3 setae of similar length, about four times the length of the ultimate segment, y 2 not observed. T 1-4 with different lengths. The longest about as long as penultimate segment, y 1 not found. Five natatory setae reaching slightly beyond the tips of the distal claws, the six th is short, reaching only to the middle of the next segment. The aesthetasc Y rather short, reaching just 30 % of the length of first endopodial segment. Exopodit with two short seta and one long seta reaching 114 % of length of first endopodial segment. Maxillula (Mx 1) (Fig. 3 E): Final segment of the palpus twice as long as broad, cylindrical. The distal segment of the palp with four setae. The two teeth setae on the third masticatory process serrate. Maxilliped (T 1) (Figs. 3 F,G): Maxilliped with two a-setae and one b, c and d-seta. Vibratory plate with 6 rays. Palp with 3 setae, the longest about 120 % of the length of the palp. Walking leg (T 2) (Fig. 4 A): Basipodit with only one seta (d 1). Endopodit with 4 segments in proportions of 3.6: 2.1: 1.7: 0.7. Distal claw strong with two rows of serrate structures distally and with a length of 75 % of endopodit. Cleaning leg (T 3) (Fig. 4 B): 4 -jointed (penultimate segment undivided), with 3 setae at the basal segment and a long (h 3) and a small hook-like seta (h 2) at the distal segment. The length of h 3 is similar to the length of the penultimate segment. Uropod (U) (Fig. 4 C): Rod-shaped with two strong claws and two small setae. Longest claw not quite as long as half of the length of the rami. Uropodal attachment simply forked without “Triebel loop. At the base without triangular structures.Published as part of Petkovski, Trajan K., Scharf, Burkhard & Keyser, Dietmar, 2016, Arctocypris fuhrmanni, n. gen., n. sp. (Crustacea, Ostracoda, Eucypridinae) from Spitsbergen (Norway), pp. 152-160 in Zootaxa 4066 (2) on pages 154-157, DOI: 10.11646/zootaxa.4066.2.3, http://zenodo.org/record/25894
Adaptive detection of a signal known only to lie on a line in a known subspace, when primary and secondary data are partially homogeneous
No full textThis paper deals with the problem of detecting a signal, known only to lie on a line in a subspace, in the presence
of unknown noise, using multiple snapshots in the primary data. To account for uncertainties about a signal's signature, we assume that the steering vector belongs to a known linear subspace. Furthermore, we consider the partially homogeneous case, for which the covariance matrix of the primary and the secondary data have the same structure but possibly different levels. This provides an extension to the framework considered by Bose and Steinhardt. The natural invariances of the detection problem are studied, which leads to the derivation of the maximal invariant. Then, a detector is proposed that proceeds in two steps. First, assuming that the noise covariance matrix is known, the generalized-likelihood ratio test (GLRT) is formulated. Then, the noise covariance matrix is replaced by its sample estimate based on the secondary data to yield the final detector. The latter is compared with a similar detector that assumes the steering vector to be known
Récupération après adaptation induite de sonie
No full textScharf B., Botte M.-C., Canévet G. Récupération après adaptation induite de sonie. In: L'année psychologique. 1983 vol. 83, n°1. pp. 9-24
Katharina II, Russland und Europa zur internationalen Forschung. Éd. par Claus scharf, 2001
No full textMichaud Claude. Katharina II, Russland und Europa zur internationalen Forschung. Éd. par Claus scharf, 2001. In: Dix-huitième Siècle, n°34, 2002. Christianisme et Lumières, sous la direction de Sylviane Albertan-Coppola et Antony McKenna. pp. 646-647
A Multi-Language Comparison of Influences on Author Verification using Character N-Grams
No full textWe create a new multi-language corpus for author verification based on Wikipedia talkpages, and evaluate the influence that differences in topic and time have on character n-gram author profiles. Topic alignment between two texts is found to increase author verification precision, and an authors writing style is found to change over time, but not more significantly after 3 years than after 1 year.Information ArchitectureWISElectrical Engineering, Mathematics and Computer Scienc
Claus Scharf : Katharina II, Deutschland und die Deutschen, (Coll. «Universalgeschichte ») 1995
No full textBourel Dominique. Claus Scharf : Katharina II, Deutschland und die Deutschen, (Coll. «Universalgeschichte ») 1995. In: Dix-huitième Siècle, n°29, 1997. Le vin, sous la direction de Jean Bart et Élisabeth Wahl. pp. 647-648
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