318,880 research outputs found
The Extended Atkinson Family and Changes in the Expenditure Distribution: Spain 1973/74-2003
No full textThis paper emphasizes the properties of a family of inequality measures which extends the Atkinson indices and is axiomatically characterized by a multiplicative decomposition property where the withingroup component is a generalized weighted mean with weights summing exactly to 1. This family contains canonical forms of all aggregative inequality measures, each bounded above by 1, has a useful and intuitive geometric interpretation and provides an alternative dominance criterion for ordering distributions in terms of inequality. Taking the Spanish Household Budget Surveys (HBS) for 1973/74, 1980/81, and 1990/91 and the more recent Continuous HBS for 2003, we show the advantages and possibilities of this extended family in regard to completing and detailing information in studies of inequality focussing on the tails of the distribution and on the changes in the distribution when the population is partitioned into population subgroups.inequality measurement, Atkinson indices
Algebraic theory of atkinson operators
No full textNotations: In this paper E denotes a linear space, δ(E) the set of all endomorphisms of E , L(E) the set of all continuous endomorphisms of E if E is equipped with a vector space topology. If T ∈δ (E), then N(T) ={x: Tx= 0}B(T) = {Tx: x ∈ E }∝ (T) = dim N (T)β (T) = codim B(T)Based on the wo rk of Fredholm, F. Riesz and Noether, Atkinson defined the abstract concept of a Fredholm operador on a Banach space E : T
Bounded Sequential Dominance Criteria
No full textIn the spirit of Fleurbaey et al. (2001), it is tempting to introduce more reasonable lower and upper bounds in Atkinson and Bourguigon’s (1987) sequential generalized Lorenz dominance procedure. Unfortunately, our proposal leads, at best, to an average household income criterion, which is unsuited to make heterogeneous welfare comparisons. We therefore restrict attention to imposing either lower or upper bounds, resulting in two new sequential dominance criteria.
Dependencias de la Facultad de Arquitectura , Casona Atkinson.
No full textDependencias de la Facultad de Arquitectura , Casona Atkinson.Dependencias de la Facultad de Arquitectura , Casona Atkinson
L'Espurgatoire seint Patriz of Marie de France. Published with an introduction and a study of the language of the author by Thomas Atkinson Jenkins, 1894
No full textP. G. L'Espurgatoire seint Patriz of Marie de France. Published with an introduction and a study of the language of the author by Thomas Atkinson Jenkins, 1894. In: Romania, tome 24 n°94, 1895. pp. 290-295
Cactopinus rhettbutleri Atkinson, sp. n.
No full textCactopinus rhettbutleri Atkinson, sp. n. Male: ( Figs. 1–2). Color black, length 1.87 mm (1.8–2.05), width 0.85 mm (0.8–1.0), length/width 2.19 (1.9–2.4) (n=11). Head: Dense fringe of downwards projecting, fimbriate setae along entire width of epistomal margin, covering base of mandibles; similar, smaller brushes at base of mandibles at genal margin. Epistoma raised for its entire width, with a single, small tubercle at each end, rising gradually in middle to base of horns. Horns joined at base, parallel throughout their length along interior margins, broadened distally; anterior surface shining, deeply, coarsely punctured, with yellowish setae arising from punctures; apex of horns digitate, impunctate; punctures on external margins of horns with raised lateral elevations; the most distal of these with a prominent lateral process, giving the horn a forked appearance; a large brush of yellow setae arising from this cleft, length of setae exceeding the apex, similar in size and color to those of epistomal brush. Frons concave in profile, shallowly concave in medial area between eyes, margins of concavity gradual, not acute; frontal surface above horns coarsely punctured, largely without setae; surface shining. Antennal club approximately twice as long as wide; basal half corneous, 2 straight sutures evident on distal half, lined with yellow setae. Pronotum: Asperities concentrated behind middle; summit acute, slightly projected posteriorly beyond base; asperities on anterior slope sparse, separated, tooth-like. Postero-lateral portions of pronotum smooth, shining, with widely spaced, deep punctures; this area with a clear demarcation from densely placed, confused asperities on summit. Acute setae associated with punctures throughout; those in antero-lateral areas and along lateral margins of raised summit twice as long as others, as long as antennal scape. Elytra: Striae deeply punctured but not impressed, punctures separated by less than their diameter. Interstriae twice as wide as striae with clearly marked, uniseriate punctures that are smaller than those of the striae; surface smooth and shining; vestiture of erect golden interstrial setae, their length less than that of the interstrial width. Declivity steep; striae 1 impressed with sutural interstria elevated, interstria 2 slightly widened with a small number of widely spaced granules; interstria 3 elevated, highest in middle, but not higher than the sutural interstria; all declivital interstriae (reduced in 2) with small uniseriate granules associated with interstrial punctures; strial punctures not granulate. Female: (Fig. 3). Length 1.90 mm (1.8–2.05), width 0.86 mm (0.9–0.95), length/width 2.13 (2.1–2.3) (n=11). Frons weakly concave between eyes; surface densely pubescent with setae uniform in length throughout, about 2/3 length of antennal scape, becoming shorter at vertex; brush of marginal setae along epistoma similar to that of male; epistoma without any trace of lateral elevation. Pronotum and elytra similar to that of male. Type material. Holotype: male. Oaxaca, 7 km S Totolapan, road to Santa María Zoquitlán (16.6231 N; 96.3261 W), 982 m, 24-VII-2014, Polaskia sp., T.H. Atkinson & A. Burgos S., THA-1064 (Deposited in the Coleccion Nacional de Insectos (CNIN), Instituto de Biología, Universidad Nacional Autónoma de México). Allotype: female: same data (CNIN). Paratypes: Oaxaca: 7 km S Totolapan, road to Santa María Zoquitlán (16.6231 N; 96.3261 W), 982 m, 24-VII- 2014, Polaskia sp., T.H. Atkinson & A. Burgos S., THA-1064 (UTIC, 6); 2 km N Totolapan (16.68644 N; 96.32061 W), 1,004 m, 1-VII-2009, Escontria chiotilla, T.H. Atkinson, THA-893 (TAMU, 2; UTIC, 3); 5 km S Totolapan, road to Santa María Zoquitlán (16.6515 N; 96.3156 W), 700 m, 24-VII-2014, Polaskia sp., T.H. Atkinson & A. Burgos S., THA-1060 (TAMU, 2); Santiago Dominguillo (17.6337 N; 96.9141 W), 870 m, 2-VII- 2009, Escontria chiotilla, T.H. Atkinson, THA-896 (UTIC, 3); Nejapa (16.6096 N; 96.0134 W), 659 m, 23-VIII- 2014, T.H. Atkinson & A. Burgos S., THA-1058 (CEAM, 5). Puebla: Coxcatlán (18.2446 N; 97.156 W), 1070 m; 19-I-2012, Escontria chiotilla; T.H. Atkinson, THA-979 (CNIN, 2; CEAM, 2; TAMU, 7; UTIC, 6). Notes. As previously discussed (Atkinson, 2010) the male epistomal horns are not segmented. In most species, especially those with the longest horns, there are deep punctures along most of the length of the horn that appear to confer some flexibility by allowing it to bend. In C. rhettbutleri the margins of the subapical punctures are raised into projections. This may be seen in several punctures but is always most prominent in those closest to the apex of the horns. In some males from the Coxcatlán population the epistomal horns are much reduced in size (Fig. 2 B,C,D). In intermediate cases the distal digitate extension is absent or much reduced but the margins of the subapical punctures are still expanded laterally and the more distal punctures on the lateral margins still have a lateral process arising from them and show the bifid, or forked apex. In other species of Cactopinus for which large numbers of specimens from multiple collections are available, there appears to be considerable variation in the length of male horns. This needs to be studied and possibly descriptions and keys will have to be modified. Biology. This species has been collected in the dried ribs of its hosts, multiply branched arborescent cacti. As is the case with most other cactus-breeding Cactopinus species, successful breeding occurs in portions of stems that have dried out to a hard, leathery consistency without the black discoloration associated with decay. Under these conditions the dried tissue is dark yellowish brown and tacky to the touch. This situation most commonly occurs in erect, dead stems still attached to the host. Galleries are initiated at the areoles (clumps of spines that are found along the ridges of the ribs). Species of Polaskia are restricted to the states of Oaxaca and Puebla, roughly within the area where this species was collected. Escontria chiotilla has a broader distribution which includes the Balsas depression of the states of Guerrero and Michoacán. The majority of the species of Cactopinus that breed in columnar or arborescent cacti use hosts in the subtribe Stenocereinae (Gibson et al. 1986). Other reported hosts in this subtribe include Stenocereus and Myrtillocactus. The Escontria and Polaskia also belong to this group and are most closely related to Myrtillocactus. Etymology. This species is named in honor of Rhett Butler for his work in conservation and environmental education. Diagnosis. This species is most readily distinguished by the unique, laterally expanded epistomal horns in the male that appear to be apically forked. The wide variation in horn length documented here for C. rhettbutleri means that some specimens can not be reliably identified at this point. The subapical branching that is typical of this species is visible even in males with reduced horns (Fig. 2 B,C) but not in extreme cases (Fig. 2 D). Examination of long series of other species has also shown wide intraspecific variation in male horn length (unpublished) that effectively means that single male specimens of other species may also present problems in identification. At this point females cannot be reliably identified although this could be accomplished with further study. Based on the abundance of characters present in the known species it should be possible to write new keys that will accommodate both females and males with reduced horns. This is beyond the scope of the current paper. Cactopinus rhettbutleri will key out to couplet 11 in the latest generic key (Atkinson, 2010). Modified couplets are shown below. 11(8) Frons curved in lateral profile, but flat longitudinally; pronotal asperities blunt, weakly developed; declivity with relatively few, small granules on interstriae. 1.2–1.4 mm. Puebla......................................... cactophthorus Wood - Frons weakly to prominently concave in central area between eyes; pronotal asperities sharply elevated, chisel shaped declivity with prominent granules on interstriae 2 and higher.......................................................... 12 12(11) Horns reaching or exceeding upper level of frons, apical portions digitate; interstria 1 on declivity not impressed, interstriae 3 not prominently elevated............................................................................... 13 - Horns not reaching upper level of frons, apical portion not digitate, interstria 1 on declivity strongly impressed, interstriae 3 prominently elevated................................................................................. 13a 13(12) Male horns not expanded distally, digitate apical portions of horns divaricate; 1.5–1.6 mm. In Neobuxbaumia. Morelos, Puebla.......................................................................................... burjosi Wood - Male horns expanded distally, prominent lateral process below digitate apex giving forked appearance. In Escontria, Polaskia. Oaxaca, Puebla....................................................................... rhettbutleri Atkinson 13(13a)Frons with prominent concavity in middle of frons; outer sides of horns parallel, inner sides angled making obvious “V” shape; antennal sutures straight. 1.6–1.9 mm. In Stenocereus. Oaxaca, Querétaro................................ niger Wood - Frons shallowly concave, concavity not well defined; inner sides of horns not strongly angled; antennal sutures bisinuate. 1.4– 1.7 mm. In Stenocereus spp. Jalisco............................................................. setosus WoodPublished as part of Atkinson, Thomas H., 2016, A new species of Cactopinus Schwarz from central Mexico (Coleoptera: Curculionidae: Scolytinae), pp. 196-200 in Zootaxa 4189 (1) on pages 196-200, DOI: 10.11646/zootaxa.4189.1.13, http://zenodo.org/record/16573
In Memoriam: Anthony B. Atkinson (1944-2017)
No full textBritish economist Anthony B. Atkinson (1944-2017) died on 1 January 2017. This text recalls his figure and his contributions to the economy of inequality. In response to market failures, Atkinson advocated compensating public sector activity through the Welfare State as an economic policy proposal to combat inequality.El 1 de enero de 2017 fallecía el economista británico Anthony B. Atkinson (1944-2017). El presente texto recuerda su figura y sus aportaciones a la economía de la desigualdad. Frente a los fallos del mercado, Atkinson defendía una actividad compensadora del sector público a través del Estado de Bienestar como propuesta de política económica de lucha contra la desigualdad
Recommendations for author signatures on scientific output at the Universitat Oberta de de Catalunya
No full textAquest document ha estat actualitzat per "Author signature recommendations for scientific output at the Universitat Oberta de Catalunya", aprovat el 20 de març de 2018. Disponible a: http://hdl.handle.net/10609/76965Este documento ha sido actualitzado por "Author signature recommendations for scientific output at the Universitat Oberta de Catalunya", aprovado el 20 de marzo de 2018. Disponible a: http://hdl.handle.net/10609/76965El 9 d'octubre de 2014 la Comissió de Recerca i Doctorat de la Universitat va aprovar les Recomanacions per a la signatura dels autors en la producció científica de la Universitat Oberta de Catalunya. Aquest document és un recull de recomanacions per al personal de la UOC pel que fa a la seva signatura en qualsevol publicació científica en què participi. Aquestes recomanacions volen el següent: fomentar l'ús d'una signatura única; fomentar l'ús correcte de la filiació institucional dels autors de la UOC; millorar i assegurar una correcta visibilitat dels autors en les bases de dades de publicacions, repositoris, cercadors a la xarxa, etc.; facilitar el seguiment de la producció científica de la UOC; fomentar l'ús d'una signatura de correu electrònic consistent i que doti de solidesa la marca UOC.El 9 de octubre de 2014 la Comisión de Investigación y Doctorado de la Universidad aprobó las Recomendaciones para la firma de los autores en la producción científica
de la Universitat Oberta de Catalunya. Este documento es una compilación de recomendaciones para el personal de la UOC en lo referente a su firma en cualquier publicación científica en la que participe. Estas recomendaciones buscan: fomentar el uso de una firma única; fomentar el uso correcto de la filiación institucional de los autores de la UOC; mejorar y asegurar una correcta visibilidad de los autores en las bases de datos de publicaciones,
repositorios, buscadores en la red, etc.; facilitar el seguimiento de la producción científica de la UOC; fomentar el uso de una firma de correo electrónico consistente y que dote de solidez a la marca UOC.On 9 October 2014, the Research and Doctorate Scientific Committee approved the Recommendations for author signatures on scientific output at the Universitat Oberta de de Catalunya. This document presents a series of recommendations for UOC staff on signing scientific publications to which they have contributed. These recommendations are intended to: encourage authors to use a unique signature; promote the correct identification of UOC authors' affiliations;
ensure satisfactory visibility of UOC authors in publication databases, repositories, web searches, etc.; facilitate the monitoring of the UOC's scientific output; promote the use of a standardised email signature that strengthens the UOC's brand image
De la “Facilitación 2.0” a la “política comercial 3.0”: oportunidades para expandir y extender las reglas del comercio mundial
No full textArticle by Craig Atkinson, Published in the ICTSD journal Puentes, “Facilitación del comercio: ¿cuál es el cuello de botella en Latinoamérica?
Cultura serrana mestiza. Una práctica de campo dirigida en la Sierra Madre Occidental. 100 (2008) octubre. Diario de Campo. Boletín interno de los investigadores del área de Antropología
No full textHAMMERSLEY, Martyn y Paul Atkinson, Etnografía. Métodos de investigación, Paidós, Barcelona, 2005.LÉVl -STRAUSS, Claude, La vía de las máscaras, Siglo XXI, México, D.F., 1997 [1979).OSEGUERA, Andrés " Rituales y evocaciones entre los pimas de la sierra Madre Occidental", Dimensión Antropológica, Instituto Nacional de Antropología e Historia, 2008, en prensa.RIVERS, W. H. R., Kinship and Social Organization, London School of Economics, Monographs on Social Anthropology, Nº 34 ([1914) 1968)
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