Heavy Hadrons in Dense Matter

We study the behavior of dynamically-generated baryon resonances with heavy-quark content within a unitarized coupled-channel theory in matter that fulfills heavy-quark spin symmetry constraints. We analyze the implications for the formation of charmed mesic nuclei and the propagation of heavy mesons in heavy-ion collisions from RHIC to FAIR.Comment: 4 pages, 1 table, 2 figures, contribution to the proceedings of Strangeness in Quark Matter (SQM2015), Dubna, 6-11 July 201

A new Iranian species of uroleucon mordvilko, 1914 (Hemiptera, Aphididae) from specimens in the Natural History Museum collection

P. 1-6Uroleucon (Uromelan) helichrysi sp. n. (Hemiptera, Aphididae, Aphidinae: Macrosiphini) is established from Iranian apterous and alate viviparous females caught on Helichrysum sp. (Asteraceae) and preserved in the collection of the Natural History Museum (BMNH) in London. The number of setae on the first tarsal segments (5), the number of caudal setae (20 to 28), the presence of abdominal marginal tubercles on abdominal segments 2 to 4, and the size of the cells of the siphuncular reticulation (relatively small) allow the new species to be distinguished from other Palaeartic species of the subgenus Uromelan. Blackman and Eastop’s key to apterae on Helichrysum is modified to include the new speciesS

Two new palaearctic species of uroleucon (Hemiptera: Aphididae) from the collection of the Muséum National d’Histoire Naturelle de Paris

P. 31-47Two new Palaearctic species of Uroleucon Mordvilko (Hemiptera: Aphididae: Aphidinae Macrosiphini) are described. Uroleucon (Uroleucon) teheranense n. sp. is described from apterous viviparous females caught on Lapsana sp. near Tehran (Iran) and Uroleucon (Uromelan) ariegense n. sp. is described from both apterous and alate viviparae caught on Campanula sp. in southern France. U. teheranense is compared with the few species belonging to subgenus Uroleucon that present 3 setae on first segment of tarsi, and with the species included in the key to apterae on Lapsana by BLACKMAN & EASTOP (2006), which is modified. U. ariegense is compared with the species of Uroleucon living on Campanulaceae species, mainly with the species included in BLACKMAN & EASTOP’s key to apterae on Campanula, which is modifiedS

Transport under advective trapping

Advective trapping occurs when solute enters low velocity zones in heterogeneous porous media. Classical local modelling approaches combine the impact of slow advection and diffusion into a hydrodynamic dispersion coefficient and many temporally non-local approaches lump these mechanisms into a single memory function. This joint treatment makes parameterization difficult and thus prediction of large-scale transport a challenge. Here, we investigate the mechanisms of advective trapping and their impact on transport in media composed of a high conductivity background and isolated low permeability inclusions. Breakthrough curves show that effective transport changes from a streamtube-like behaviour to genuine random trapping as the degree of disorder of the inclusion arrangement increases. We upscale this behaviour using a Lagrangian view point, in which idealized solute particles transition over a fixed distance at random advection times combined with Poissonian advective trapping events. We discuss the mathematical formulation of the upscaled model in the continuous time random walk and mobile-immobile mass transfer frameworks, and derive a model for large-scale solute non-Fickian dispersion. These findings give new insight into transport in highly heterogeneous media. © 2020 BMJ Publishing Group. All rights reserved

Nueva especie iraní de Uroleucon Mordvilko, 1914 (Hemiptera, Aphididae) descrita a partir de ejemplares de la colección del Natural History Museum

Uroleucon (Uromelan) helichrysi sp. n. (Hemiptera, Aphididae, Aphidinae: Macrosiphini) is established from Iranian apterous and alate viviparous females caught on Helichrysum sp. (Asteraceae) and preserved in the collection of the Natural History Museum (BMNH) in London. The number of setae on the first tarsal segments (5), the number of caudal setae (20 to 28), the presence of abdominal marginal tubercles on abdominal segments 2 to 4, and the size of the cells of the siphuncular reticulation (relatively small) allow the new species to be distinguished from other Palaeartic species of the subgenus Uromelan. Blackman and Eastop’s key to apterae on Helichrysum is modified to include the new species. urn:lsid:zoobank.org:pub:E2B89D59-05FD-4A9E-AD78-B3C302219A10Se establece la especie Uroleucon helichrysi n. sp. (Hemiptera: Aphididae: Aphidinae: Macrosiphini) con la descripción de sus hembras vivíparas ápteras y aladas recogidas en Irán sobre Helichrysum sp. (Asteraceae), conservadas en la colección del Natural History Museum de Londres. La nueva especie se diferencia de otras especies paleárticas del subgénero Uromelan por la cantidad de setas en el primer segmento tarsal (5), la cantidad de setas caudales (20 a 28), por el tamaño de las celdillas de la reticulación cornicular (que son relativamente pequeñas) y por la presencia de papilas marginales (presentes en los segmentos abdominales 2 a 4) Se incluye una modificación a la clave de Blackman and Eastop para las ápteras que viven sobre Helichrysum. urn:lsid:zoobank.org:pub:E2B89D59-05FD-4A9E-AD78-B3C302219A1

A new aphid species (Hemiptera, Aphididae) living on centaurea from Iran

P. 17-20Macrosiphoniella (Papillomyzus) iranica sp. n. (Aphididae Macrosiphini) is described from Iranian apterous viviparous females caught on Centaurea sp. and conserved in the Natural History Museum in London and in the Muséum national d’Histoire naturelle in Paris. The features of the new species are compared with those of the other 6 species of the subgenus Papillomyzus which are hosted on Centaurea and on other Cardueae, Cynareae or Anthemideae (Asteraceae) species and are distributed along a Mediterrean-Pontian-Turanian-East Palaeartic bandS

Primera cita de Geoica setulosa (Passerini, 1860) en la Península Ibérica (Hemiptera, Aphididae, Eriosomatinae, Fordini)

El género Geoica Hart, agrupa 25 especies (Remaudière & Remaudière, 1997; Qiao & Zhang, 2001; Remaudière et al., 2004), incluyendo en ellas ocho especies próximas a G. utricularia, que están mal definidas y son más o menos dudosas (grupo "utricularia" según Remaudière & Remaudière, 1997). Es un género de origen y distribución paleártica, pero que debido a la capacidad que tienen sus especies para desarrollar poblaciones anholocíclicas en sus hospedadores secundarios (básicamente gramíneas), puede estar presente en otras zonas del mundo, incluso en lugares en los que no crece su hospedador primario (Pistacia spp.) (Blackman & Eastop, 1994; Nieto Nafría et al., 2004). En Europa se conocen únicamente cuatro especies: G. lucífuga (Zehntner), G. setulosa (Passerini), G. utricularia (Passerini) y G. wertheimae Brown & Blackman, y sólo una, G. utricularia, se conocía hasta la fecha en la península Ibérica (Pérez Hidalgo & Nieto Nafría, 2003; Nieto Nafría et al., 2004)

Field Activity of Reticulitermes grassei (Isoptera: Rhinotermitidae) in Oak Forests of the Southern Iberian Peninsula

This paper presents preliminary data on the field activity of Reticulitermes grassei Clément in oak forests of the southern Iberian Peninsula. Recent research has provided information on the nature and intensity of termite damage to cork oaks (Quercus suber, L.) in northern Andalusia (Spain). Taking that information into account, the present study sought to determine annual field activity pattern in R. grassei, with a view to identifying more precisely the best time for applying control techniques. Data were obtained from field monitoring experiments conducted over a complete one-year cycle using termite-specific baited traps. Results for relative termite numbers at different periods indicated that forest activity was most intense in mid-summer, whilst the surface foraging area was greatest from late summer to early fall, peaking after the first autumnal rains. The findings of this study may help to enhance the efficacy of termite bait treatments in natural environments, since baits decay and lose effectiveness over time, and are also dispersed by the termites themselves. Accurate information on peak termite activity periods would enable products to be applied in most favorable timing, thus optimizing the results of treatment

Redescripción de Uromenus (Steropleurus) recticarinatus Llorente, 1980. (Orthoptera, Tettigoniidae, Ephippigerinae)

Se redescribe Uromenus (Steropleurus) recticarinatus Llorente, 1980 a partir de nuevo material capturado en el Parque Nacional de Doñana, poniéndose de manifiesto que la forma del pronoto es la estructura más característica de la especie. Se describen los caracteres del adulto para ambos sexos, se discute su relación con otras especies afines y se establecen las diferencias con S. flavovittatus (Bolívar, 1878), S. andalusius (Rambur, 1838), S. pseudolus (Bolívar, 1878) y S. perezii (Bolívar, 1877).Uromenus (Steropleurus) recticarinatus Llorente, 1980 is redescribed from new material sampled in Doñana National Park (Spain). The study of the specimens shows that the pronotal shape is the most representative feature. The adults of both sexes are described and the differences with respect to the related species S. flavovittatus (Bolívar, 1878), S. andalusius (Rambur, 1838), S. pseudolus (Bolívar, 1878) and S. perezii (Bolívar, 1877) are discussed