88,003 research outputs found
Perepsilonema Lorenzen 1973
No full textGenus Perepsilonema Lorenzen, 1973 Type species: Perepsilonema papulosum Lorenzen, 1973 [Clasing, 1984] Other species: Perepsilonema bahiae (Gerlach, 1957) Lorenzen, 1973 syn. Bathepsilonema bahiae Gerlach, 1957 P. c r a s s u m Lorenzen, 1973 P. trauci Lorenzen, 1973 P. c o n i f e r Lorenzen, 1973 syn. P. conifer lissum (Lorenzen, 1973) op. Gourbault & Decraemer 1988 P. corsicum Vanreusel & Vincx, 1986 P. mediterraneum Vanreusel & Vincx, 1986 P. longispiculosum Vanreusel & Vincx, 1986 P. coomansi Vanreusel & Vincx, 1986 P. tubuligerum Gourbault & Decraemer 1988 P. kellyae Gourbault & Decraemer, 1988 [Verschelde & Vincx 1994] P. m o i n e a u i Gourbault & Decraemer, 1992 P. r i t a e Verschelde & Vincx, 1994 P. benguelae sp. nov. General remarks. A revised taxonomic key to males of the species of the genus is provided: modified from Gourbault and Decraemer (1988). 1 Six subcephalic setae.................................................................................................................................................... 2 Eight subcephalic setae................................................................................................................................................. 3 2 Two fields of poorly developed copulatory thorn-like structures, one in ventral fold, second at level of testis; a few small spines in cloacal region; spicule 68–77 μm long ........................................................................... P. tubuligerum Two fields of well-developed copulatory thorn-like structures, one at level of testis, second as precloacal thorns; spicule 31–32 μm long ..................................................................................................................................... P. conifer 3 Six subcephalic setae on cephalic capsule anterior to amphid; two setae at base of amphid inserted on first annulus....................................................................................................................................................................................... 4 Eight subcephalic setae anterior to amphid.................................................................................................................. 7 4 Copulatory thorns absent.............................................................................................................................................. 5 Copulatory thorns present at level of testis or in cloacal region................................................................................... 6 5 Annulations with numerous small vacuoles ............................................................................................. P. papulosum Annulations with minute vacuoles and additional dorso-longitudinal striations ......................................... P. moineaui 6 Annulations plain; one pair of large copulatory thorn-like structures plus 4 pairs small copulatory thorns in midbody region ...................................................................................................................................................... P. kellyae Annulations with regular vacuoles; three pairs of copulatory thorn-like structures in precloacal region...................... ...................................................................................................................................................... P. benguelae sp. nov. 7 No copulatory thorn-like structures at the enlargement of the median body ................................................... P. bahiae Copulatory thorn-like structures at the enlargement of the median body..................................................................... 8 8 Two rows of small thorns subdorsally on caudal annulations...................................................................................... 9 Two fields of small spines subdorsally on caudal annulations................................................................................... 11 9 Body annulations ornamented with tiny, barely visible vacuoles .................................................................. P. crassum Body annulations with a single row of large vacuoles............................................................................................... 10 10 Two fields of subventral copulatory thorn-like structures: 5 pairs at level of testis, and 3 pairs in precloacal region... .......................................................................................................................................................................... P. trauci Ventral field of tiny spines in region between dorsal and ventral body curvature; two pairs large copulatory thorns at level of testis ........................................................................................................................................................ P. ritae 11 Single field of three pairs of subventral copulatory thorn-like structures at level of testis; no precloacal thornlike structures..................................................................................................................................................................... 12 Two fields of copulatory thorn-like structures at level of testis and in precloacal region.......................................... 13 12 Copulatory thorn-like structures well developed; spicule 64 μm long ............................................. P. longispiculosum Copulatory thorn-like structures poorly developed; spicule 39 μm long .................................................... P. corsicum 13 Six to seven pairs of subventral copulatory thorn-like structures in testis region; two pairs copulatory thorns in precloacal region; cephalic capsule as wide as long ................................................................................ P. mediterraneum Three pairs of subventral copulatory thorn-like structures in the testis region, followed by subventral pair and a single thorn in ventral region anterior to vas deferens, another two pairs subventrally in precloacal region; cephalic capsule longer than wide ................................................................................................................................... P. coomansiPublished as part of Hendricks, Martin G. J. & Gibbons, Mark J., 2010, Two new nematode species from Saldanha Bay, South Africa: Perepsilonema benguelae sp. nov. and Leptepsilonema saldanhae sp. nov. (Desmodorida, Epsilonematidae), pp. 20-30 in Zootaxa 2504 on pages 24-25, DOI: 10.5281/zenodo.19588
Some properties of Lorenzen ideal systems
No full textsummary:Let be a partially ordered abelian group (-group). The construction of the Lorenzen ideal -system in is investigated and the functorial properties of this construction with respect to the semigroup of all -ideal systems defined on are derived, where for and a lower bounded subset , . It is proved that Lorenzen construction is the natural transformation between two functors from the category of -groups with special morphisms into the category of abelian ordered semigroups
A general sampling-based SMPC approach to spacecraft proximity operations
No full textThis paper considers the problem of designing a control strategy for proximity operations of space systems. The considered setup is realistic, and is based on a model derived and validated on an experimental test-bed. Parametric uncertainties due to the mass variations during operations, linearization errors, and disturbances due to external space environment are simultaneously considered. The proposed control strategy is based on a novel framework for stochastic model predictive control (SMPC), extending the results based on offline sampling strategies previously developed
Variations on the Author
No full text“Variations on the Author” discusses two of Eduardo Coutinho’s recent films (Um Dia na Vida, from 2010, and Últimas Conversas, posthumously released in 2015) and their contribution to the general question of documentary authorship. The director’s filmography is characterized by a consistent yet self-effacing form of authorial self-inscription: Coutinho often features as an interviewer that rather than express opinions propels discourses; an interviewer that is good at listening. This mode of self-inscription characterizes him as an author who is not expressive but who is nonetheless markedly present on the screen. In Um Dia na Vida, however, Coutinho is completely absent form the image, while Últimas Conversas, on the contrary, includes a confessional prologue that moves the director from the margins to the center of his films. This article examines the ways in which these works stand out in the filmography of a director who offers new insights into the notion of cinematic authorship
"Wir bedürfen weder überseeischen Taback noch indischen Zucker ..." Vertriebsaktivitäten und handelspolitisches Engagement badisch-pfälzischer Gewerbepflanzenbauern in der ersten Hälfte des 19. Jahrhunderts
No full textGrüne N. "Wir bedürfen weder überseeischen Taback noch indischen Zucker .." Vertriebsaktivitäten und handelspolitisches Engagement badisch-pfälzischer Gewerbepflanzenbauern in der ersten Hälfte des 19. Jahrhunderts. In: Konersmann F, Lorenzen-Schmidt K-J, eds. Bauern als Händler. Ökonomische Diversivizierung und soziale Differenzierung bäuerlicher Agrarproduzenten im Zuge der Marktintegration (15.-19. Jahrhundert). Stuttgart: Lucius & Lucius; 2011: 135-162
[Newspaper Clipping: Author Claims Evidence of Second JFK Assassin #1]
No full textNewspaper article titled "Author Claims Evidence of Second JFK Assassin." The article states that author Richard J. Whalen concluded "that there is circumstantial evidence to support the theory of a second assassin in the shooting of President John F. Kennedy.
Computationally efficient stochastic MPC: A probabilistic scaling approach
No full textIn recent years, the increasing interest in stochastic model predictive control (SMPC) schemes has highlighted the limitation arising from their inherent computational demand, which has restricted their applicability to slow-dynamics and high-performing systems. To reduce the computational burden, in this paper we extend the probabilistic scaling approach to obtain a low-complexity inner approximation of chance-constrained sets. This approach provides probabilistic guarantees at a lower computational cost than other schemes for which the sample complexity depends on the design space dimension. To design candidate simple approximating sets, which approximate the shape of the probabilistic set, we introduce two possibilities: i) fixed-complexity polytopes, and ii) ell_{p-norm based sets. Once the candidate approximating set is obtained, it is scaled around its center so to enforce the expected probabilistic guarantees. The resulting scaled set is then exploited to enforce constraints in the classical SMPC framework. The computational gain obtained with respect to the scenario approach is demonstrated via simulations, where the objective is the control of a fixed-wing UAV performing a crop-monitoring mission over a sloped vineyard
Also By The Same Author: AKTiveAuthor, a Citation Graph Approach to Name Disambiguation
No full textThe desire for definitive data and the semantic web drive for inference over heterogeneous data sources requires co-reference resolution to be performed on those data. In particular, name disambiguation is required to allow accurate publication lists, citation counts and impact measures to be determined. This paper describes a graph-based approach to author disambiguation on large-scale citation networks. Using self-citation, co-authorship and document source analyses, AKTiveAuthor clusters papers, achieving precision of 0.997 and recall of 0.818 over a test group of eight surname clusters
John F. Kennedy telegram to Roosevelt
No full textJersey Homesteads (later the Borough of Roosevelt) was established in the 1930s as an agro-industrial cooperative community. It was established specifically for urban Jewish garment workers, many of whom had emigrated from Europe. President John F. Kennedy sent a telegram to the citizens of Roosevelt, New Jersey, apologizing for not being able to attend the memorial dedication in honor of former President Franklin Delano Roosevelt. (Jersey Homesteads became Roosevelt in 1945 in honor of the president.) President Kennedy expressed his gratitude to the people of Roosevelt for constructing the memorial, and commented that it will serve as a constant reminder of Roosevelt's good works
Information Cost, Learning, and Trust Lessons from Co-operation and Higher-order Capabilities Amongst Geographically Proximate Firms
No full textIn this short paper, I put forward an argument about trust based upon an information cost perspective. I argue that, in different contexts, different origins of trust come to dominate. This is so, because different possible origins of trust have a different information cost, and different contexts have different information availability. Agents learn about this, and place their trust accordingly. I provide an empirical example, and list some traits of information availability between geographically proximate firms. The information cost argument explains why a particular way of trusting is prevalent in some proximate ‘communities’ of agents.Trust; governance; information cost; organisational learning; industrial districts
- …
