Pulsating B and Be stars in the Small Magellanic Cloud

Context. Stellar pulsations in main-sequence B-type stars are driven by the κ-mechanism due to the Fe-group opacity bump. The current models do not predict the presence of instability strips in the B spectral domain at very low metallicities. As the metallicity of the SMC is lower than Z = 0.005, it constitutes a very suitable object to test these predictions. Aims. The main objective is to investigate the existence of B-type pulsators at low metallicities, searching for short-term periodic variability in absorption-line B and Be stars in the SMC. The analysis has been performed in a sample of 313 B and Be stars with fundamental astrophysical parameters accurately determined from high-resolution spectroscopy. Methods. Photometric light curves of the MACHO project have been analyzed using standard Fourier techniques and linear and non- linear least squares fitting methods. The position of the pulsating stars in the HR diagram has been used to ascertain their nature and to map the instability regions in the SMC. Results. We have detected 9 absorption-line B stars showing short-period variability, two among them being multiperiodic. One star is most likely a β Cephei variable and the remaining 8 are SPB stars. The SPB instability strip in the SMC is shifted towards higher temperatures than the Galaxy. In the Be star sample, 32 stars are short-period variables, 20 among them multiperiodic. 4.9% of B stars and 25.3% of Be stars are pulsating stars. Conclusions. β Cephei and SPB stars do exist at the SMC metallicity. The fractions of SPB stars and pulsating Be stars in the SMC are lower than in the Galaxy. The fraction of pulsating Be stars in the SMC is much higher than the fraction of pulsating absorption-line B stars, as in the [email protected]; [email protected]; [email protected]

Un pedestal de estatua con inscripción de Pajaritos (Huelva)

Un pedestal con la dedicación de un aedilis y IIvir, de la tribu Quirina, confirma el estatus jurídico privilegiado de Onoba Aestuaria y descarta la condición jurídica de colonia para Onoba. Este pedestal apareció en la finca Pajaritos, cerca del cruce (Cuatro Caminos) de las vías Ab Ostio Fluminis Anae- Italica y Onoba-Pax Iulia.______________________________________A pedestal set up by an aedile and IIvir enrolled in the Roman voting tribe Quirina confirms Onoba Aestuaria’s privileged juridical status and calls into question the commonly held view that Onoba had the juridical status of a colony. This pedestal appeared in Pajaritos site, near crossing place (Cuatro Caminos) of the roman roads Ab Ostio Fluminis Anae-Italica and Onoba -Pax Iulia

Diet digestibility in growing rabbits: effect of origin and oxidation level of dietary fat and vitamin e supplementation

[EN] The effects of the dietary inclusion of fats with different origin (lard or vegetal oil), fatty acid profile (linseed or sunflower), oxidation level (fresh, peroxidised: 11 d at 55ºC or oxidised: 31 h at 140ºC) and vitamin E supplementation (0 or 100 ppm) on the rabbit diet apparent digestibility were studied. Digestibility coefficients of dry matter, organic matter, crude protein, ether extract and gross energy were determined in eight diets using 58 rabbits aged 49 d. Contrast analysis between groups of diets showed that lard, characterised by a greater saturated fatty acid content, compared with vegetal oils, rich in unsaturated fatty acid, reduced the apparent digestibility of ether extract (62.3 vs. 68.4%; P=0.0329). However, there were no significant differences in the nutrient digestibility when linseed or sunflower oils (rich in [omega]-3 or in [omega]-6 polyunsaturated fatty acids, respectively) were compared. The oxidation degree of the sunflower oil and the supplementation with 100 ppm of vitamin E to the diets did not modify the apparent digestibility values of any dietary fraction.This work was financed by the Ministry of Science and Technology (AGL2003-06559-C02-02)Casado, C.; Moya, V.; Fernández, C.; Pascual Amorós, JJ.; Blas, E.; Cervera, C. (2010). Diet digestibility in growing rabbits: effect of origin and oxidation level of dietary fat and vitamin e supplementation. World Rabbit Science. 18(2). https://doi.org/10.4995/wrs.2010.18.0818

Late reproductive senescence in a rabbit line hyper selected for reproductive longevity, and its association with body reserves

The aim of the present study was to investigate differences in reproductive and body traits during successive parities between two genetic lines. The LP line was constituted by means of selection of animals having an extremely high number of parities (at least 25) and an average reproductive performance compared to the V line selected for litter size at weaning during 31 generations. The two lines were found to have an equal reproductive performance in the first three parities, but the LP line had higher reproductive performance from the fourth parturition onwards. The low reproductive performance after the third parity in the V line was suggested to be caused by constrained environmental conditions in the test station. A line by parity interaction was also observed for body weight, since body weight declined going from the third to the fourth parity in the LP line but not the V line. Thus, it was concluded that hyper selection for reproductive longevity and average prolificacy successfully delayed reproductive senescence, and that this newly founded line showed less environmental sensitivity, which might have been mediated by a higher body reserve

The New Era of Business Intelligence Applications: Buildingfrom a Collaborative Point of View

Collaborative business intelligence (BI) iswidely embraced by enterprises as a way of making themost of their business processes. However, decision mak-ers usually work in isolation without the knowledge or thetime needed to obtain and analyze all the available infor-mation for making decisions. Unfortunately, collaborativeBI is currently based on exchanging e-mails and documentsbetween participants. As a result, information may be lost,participants may become disoriented, and the decision-making task may not yield the needed results. The authorspropose a modeling language aimed at modeling andeliciting the goals and information needs of participants ofcollaborative BI systems. This approach is based on inno-vative methods to elicit and model collaborative systemsand BI requirements. A controlled experiment was per-formed to validate this language, assessing its under-standability, scalability, efficiency, and user satisfaction byanalyzing two collaborative BI systems. By using theframework proposed in this work, clear guideless can beprovided regarding: (1) collaborative tasks, (2) their par-ticipants, and (3) the information to be shared among them.By using the approach to design collaborative BI systems,practitioners may easily trace every element needed in thedecision processes, avoiding the loss of information andfacilitating the collaboration of the stakeholders of suchprocesses

Quantifying slumness with remote sensing data

The presence of slums in a city is an indicator of poverty and its proper delimitation is a matter of interest for researchers and policy makers. Socio-economic data from surveys and censuses are the primary source of information to identify and quantify slumness within a city or a town. One problem of using survey data for quantifying slumness is that this type of data is usually collected every ten years and is an expensive and time consuming process. Based on the premise that the physical appearance of an urban settlement is a reflection of the society that created it and on the assumption that people living in urban areas with similar physical housing conditions will have similar social and demographic characteristics (Jain, 2008; Taubenb¨ock et al., 2009b); this paper uses data from Medellin City, Colombia, to estimate slum index using solely remote sensing data from an orthorectified, pan-sharpened, natural color Quickbird scene. For Medellin city, the percentage of clay roofs cover and the mean swimming pool density at the analytical region level can explain up to 59% of the variability in the slum index. Structure and texture measures are useful to characterize the differences in the homogeneity of the spatial pattern of the urban layout and they improve the explanatory power of the statistical models when taken into account. When no other information is used, they can explain up to 30% of the variability of the slum index. The results of this research are encouraging and many researchers, urban planners and policy makers could benefit from this rapid and low cost approach to characterize the intra-urban variations of slumness in cities with sparse data or no data at all

Catalytic Asymmetric Synthesis of Bicycloprolines by a 1,3-Dipolar Cycloaddition/Intramolecular Alkylation Strategy

This document is the Accepted Manuscript version of a Published Work that appeared in final form inJournal of Organic Chemistry, copyright © American Chemical Society after peer review and technical editing by the publisher. To access the final edited and published work see http://dx.doi.org/10.1021/acs.joc.6b01100 to Published Work, see http://pubs.acs.org/page/policy/articlesonrequest/index.htmlThe diastereoselective one-pot synthesis of hexahydrocyclopenta [b] pyrrole derivatives (bicycloprolines) has been achieved by base-mediated reactions of (E)-tert-butyl 6-bromo-2-hexenoate with α-imino esters. The catalytic asymmetric version of this process has been efficiently achieved using the CuI/(R)-DTBM-Segphos complex as a catalyst following a two-step 1,3-dipolar cycloaddition/intramolecular alkylation sequence.Financial support of this work by the Ministerio de Economía y Competitividad and Fondo Europeo de Desarrollo Regional (MINECO CTQ2012-35790 and MINECO/FEDER CTQ2015-66954-P) are gratefully acknowledged. M.G.-E. and A.P.-E. thank the MICINN for predoctoral fellowship

Autolesión no suicida en adultos jóvenes con y sin trastorno límite de la personalidad: el papel de la desregulación emocional y la urgencia negativa

Non-suicidal self-injury (NSSI) is defined as self-inflicted pain, and it is used as a mechanism to alleviate psychological distress. Although NSSI is prevalent in Borderline Personality Disorder (BPD), it is also an increasing concern among college student populations. While emotion dysregulation and negative urgency are associated with NSSI, little is known about which dimensions specifically predict the motivations (NSSI-functions) and frequency of self-harm. The current study explored the relationship between emotion dysregulation, negative urgency, and NSSI in 86 young adults, divided into three groups: college students with NSSI, BPD patients with NSSI, and a healthy control group without NSSI. We conducted multiple regression analyses to predicted NSSI-functions and NSSI-frequency. Non-acceptance of emotions, a specific dimension of emotion dysregulation, uniquely predicted intrapersonal NSSI-functions (e.g., regulating distressing emotions), but not interpersonal NSSI-functions (e.g., communicating distress). Lastly, poor emotion regulation strategies predicted NSSI-frequency only in individuals with high negative urgency, that is, individuals who tend to act impulsively when experiencing negative emotions, but not in those with low negative urgency. Findings shed light on the underlying motivations for engaging in self-injury, and they reveal facets of emotion dysregulation relevant for NSSI treatment.La Autolesión No Suicida (ANS) se define como un dolor auto-infligido que se utiliza como un mecanismo para aliviar la angustia psicológica. Aunque ANS es común en el trastorno límite de la personalidad (TLP), también es un problema creciente en estudiantes universitarios. Si bien la desregulación emocional y la urgencia negativa están asociadas con ANS, poco se sabe sobre las dimensiones específicas que predicen la motivación (funciones) y la frecuencia de las autolesiones. Se exploró la relación entre la desregulación emocional, la urgencia negativa, y ANS en 86 adultos jóvenes, divididos en tres grupos: estudiantes universitarios con ANS, pacientes TLP con ANS y un grupo de control sano sin ANS. Realizamos análisis de regresión múltiple para predecir las funciones y frecuencia de ANS. La no aceptación de las emociones, una dimensión especifica de la desregulación emocional, predijo de manera única las funciones intrapersonales de ANS, pero no las funciones interpersonales. Por último, la falta de estrategias de regulación emocional predijo la frecuencia de ANS solo en individuos con una alta urgencia negativa, es decir, individuos que tienden a actuar impulsivamente cuando experimentan emociones negativas, pero no en aquellos con una baja urgencia negativa. Los hallazgos resaltan las motivaciones subyacentes a la autolesión y revelan facetas de la desregulación emocional relevantes para el tratamiento de ANS

Genetic selection of maternal lines and digestive efficiency in rabbits: long term selection for litter size at weaning versus hyper selection for reproductive longevity

The objective of the present paper is to evaluate how long-term selection for litter size at weaning or short-term hyper selection for reproductive longevity, affect the digestive utilisation of growing and lactating rabbits. A digestibility trial was carried out during the 3rd week of lactation with a total of 27 multiparous does: 14 females came from a line selected for litter size at weaning over 32 generations (V), and 13 from a recently constituted, long lived-productive line (LP). Another digestibility trial was performed during the growing period with a total of 48 growing rabbits (24 from each line). After a 7 d adaptation period, faeces were collected individually for 4 d (from 13 to 16 d of lactation or from 49 to 53 d of age, respectively). Daily feed intake and weight gain recorded during the experimental growing period were similar for both lines (137 g of dry matter (DM)/d and 48 g/d, respectively). Growing rabbits from the V-line showed greater values for the digestibility of the DM and OM (+1 percentage point; P<0.10) and signifi cantly higher values for the acid detergent fi bre (+3 percentage points; P=0.03) than animals from the LP line. No signifi cant differences for the apparent digestibility coeffi cients of crude protein, neutral detergent fi bre, crude fi bre and gross energy were observed between lines, these being on average 65.7, 23.0, 10.7 and 52.6%, respectively. Females from the LP line were initially heavier (+258 g of live weight; P=0.06), and presented a signifi cantly greater daily feed intake (+22 g DM/d; P=0.04) and milk yield (+37 g/d; P=0.01) during the pre-experimental and faeces collection phases (from 6 to 16 d of lactation). V-line lactating does displayed greater values for digestibility for all those nutrients evaluated (from +0.9 and +3.7 percentage points for the crude protein and acid detergent fi bre) compared to the LP line females, although these were only signifi cant for the DM, organic matter and gross energy (+2.3, +2.5, +2.1 percentage points; P<0.05). In conclusion, rabbits selected for litter size at weaning seem to have greater effi ciency for digestive utilisation than those hyper selected for reproductive longevity.This study has been supported by the Spanish CICYT project AGL 2004-02710/GAN.Pascual Amorós, JJ.; Ródenas, L.; Martínez, E.; Cervera, C.; Blas, E.; Baselga, M. (2008). Genetic selection of maternal lines and digestive efficiency in rabbits: long term selection for litter size at weaning versus hyper selection for reproductive longevity. World Rabbit Science. 16(3). doi:10.4995/wrs.2008.62516

Mesozoic palaeogeographic evolution of the External Zones of the Betic Cordillera

14 páginas, 8 figuras.The main events characterizing the Mesozoic palaeogeographic evolution of the External Zones of the Betic Cordillera are outlined. The Triassic sediments show a 'germanic' type lacies over the entire region, ending with Late Triassic evaporites and variegated clays of Keuper facies. At the beginning of the Jurassic a transgression takes place, and a broad shallow-marine carbonate-platform environment appears. During the Carixian (180 Ma) the carbonate platform breaks down leading to the differentiation of two large palaeogeographic units: the Prebetic Zone where shallow-water environments prevailed throughout the Mesozoic, and the Subbetic Zone where the sediments are clearly pelagic. Within the Prebetic Zone, two palaeogeographic realms are differentiated: the External Prebetic ,showing important stratigraphic gaps in the Jurassic and Early Cretaceous sequence, and the Internal Prebetic with a thicker and more continuous stratigraphic sequence. Between the Prebetic and Subbetic Zones, a palaeogeographic realm is distinguished (Intermediate units) where turbiditic and pelagic materials were deposited. This zone corresponds approximately to a slope environment during most of Mesozoic times. In the Subbetic Zone a marked differential subsidence occurs during the Jurassic, leading to trough (Median Subbetic) and swells (External and Internal Subbetic). In the Median Subbetic, the deposits consist mainly of marls, pelagic limestones, radiolarites and calcareous turbidites, with mafic volcanic hand subvolcanic rocks. During the Cretaceous pelagic marls and marty limestones were laid down. Mesozoic sedimentation took place along the southern margin of the European plate, in an Atlantic-type continental margin underlain by continental crust. Three-dimensional schemes, explaining the main palaeogcographic events are included.Peer reviewe