103 research outputs found

    Systematics of African Amphicyonidae, with descriptions of new material from Napak (Uganda) and Grillental (Namibia)

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    [EN] The Early Miocene Napak XV locality (ca 20.5 Ma), Uganda, has yielded an interesting assemblage of fossils, including the very well represented amphicyonid Hecubides euryodon. The remarkable find of a nearly complete mandible, unfortunately with poorly preserved dentition, together with new dental remains allow us to obtain a better idea about the morphology and variability of this species. Additionally, we describe a newly discovered mandible of Hecubides euryodon from the Grillental-VI locality (Sperrgebiet, Namibia), which is the most complete and diagnostic Amphicyonidae material found in this area. Comparisons with Cynelos lemanensis from Saint-Gérand-le-Puy (France), the type locality, and with an updated sample of the species of amphicyonids described in Africa leads us to validate the genus Hecubides. Hecubides would be phylogenetically related to the medium and large size species of Amphicyonidae from Africa, most of them now grouped into the genera Afrocyon and Myacyon, both endemic to this continent.[ES] La localidad del Mioceno inferior de Napak XV (ca 20,5 Ma) ha suministrado un interesante conjunto de fósiles, entre los que el anficiónido Hecubides euryodon está bien representado. Es importante el hallazgo de una mandíbula bastante completa, aunque con dentición bastante deteriorada y nuevos materiales dentarios que nos permiten un mejor conocimiento de la morfología y variabilidad de esta especie. Adicionalmente, se describe una nueva mandíbula, también de Hecubides euryodon, procedente del yacimiento de Grillental-VI (Sperrgebiet, Namibia), que viene a ser el material más completo y diagnóstico de esta especie en este área. Comparaciones con Cynelos lemanensis de Saint-Gérand-le-Puy (Francia), localidad tipo de esta especie, y con los amphicyonidos descritos hasta el presente en Africa, nos conducen a validar el género Hecubides. Este género estaría relacionado filogenéticamente con las especies de talla media y grande de Amphicyonidae de África, la mayoría de ellas ahora agrupadas en los géneros Afrocyon y Myacyon, ambos endémicos de este continente.Project CGL2015-68333, MINECO (Spanish Government) and The Research Group BSCH-UCM 910607. A.V. is Research student in the CSIC program JAE-PRE_CP2011 (CSIC program “Junta para la Ampliación de Estudios”), cofunded by the European Social FundPeer reviewe

    Revelaciones. Dos ensayos sobre fotografía

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    Ficha técnica: Joan Fontcuberta y Xavier Antich Editorial Gustavo Gili Barcelona, 2020 144 pp. ISBN: 978-84-25232-96-

    Langebaanweg's sabertooth guild reveals an African Pliocene evolutionary hotspot for sabertooths (Carnivora; Felidae)

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    Here, we describe and revise craniodental material from Langebaanweg 'E' Quarry (South Africa, early Pliocene, ∼5.2 Ma), which represents one of the largest and best-preserved collections of sabertooth felids from Mio-Pliocene deposits of Africa. Four taxa, including two new species, are recognized: Lokotunjailurus chinsamyae sp. nov., Adeilosmilus aff. kabir, Yoshi obscura, and Dinofelis werdelini sp. nov. The felid guild composition analyzed herein suggests the presence of a mosaic environment with open components in the region, and shows a potential relationship with that of Yuanmou, suggesting a similar environment and/or dispersal route/event. The reassessment of the rich early Pliocene felids from Langebaanweg is a step toward understanding the transition and evolution of the felids in the southern hemisphere during the late Miocene to early Pliocene

    A New Thaumastocyoninae (Amphicyonidae, Carnivora) from the Early Miocene of Tuchořice, the Czech Republic

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    Altres ajuts: CERCA Programme/Generalitat de CatalunyaNew Amphicyonidae fossil remains from the early Miocene site of Tuchořice (the Czech Republic) confirm the presence of a new Thaumastocyoninae taxon: Peignecyon felinoides n. gen. et n. sp. It is characterized by a peculiar combination of plesiomorphic and derived morphological traits. The new genus can be defined by a long and sharp mandible diastema, loss of mesial premolars (p2-p3), p4 with an inclined distally high main cuspid, moderate sectorial carnassial teeth, m1 with relict metaconid, and talonid and trigonid of similar width, and reduced M2 and m2. In the phylogenetic analysis the Thaumastocyoninae form a monophyletic group characterized by the start of the m2/M2 reduction, still moderate in Crassidia intermedia (von Meyer, 1849), but remarkable in the other species of the clade. Peignecyon felinoides already shows the advanced features defining the Thaumastocyoninae, and constitutes the sister group of the most specialized genera Tomocyon Viret, 1929b and Thaumastocyon Sthelin et Helbing, 1925. Consequently, it can be considered an excellent link between this group and the more primitive members of the tribe Ysengrini (Ysengrinia Ginsburg, 1966 and Crassidia Heizmannn et Kordikova, 2000). Peignecyon felinoides shows that the trend towards hypercarnivory had already emerged in the European early Miocene fauna, thus helping to understand the complex evolution of the Amphicyonidae during the Miocene

    Professional Perspectives on the Influence of Instagram on Fashion Photography

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    [Resumen] Fenómenos como la aparición de Instagram y el avance de la tecnología han favorecido una democratización de la fotografía, en un mundo cada vez más visual. En este entorno, el papel de los fotógrafos profesionales requiere constante actualización, pues se impregna de tendencias que se exploran en las redes sociales hasta ser mayoritariamente aceptadas y demandadas por los usuarios. Instagram es, además, un foro en el que la industria de la moda, por su naturaleza visual, tiene un peso muy relevante. En este trabajo se indaga sobre las percepciones de los profesionales de la fotografía de moda acerca de la influencia de Instagram en su trabajo. Para ello, se recurre a una metodología cualitativa, la entrevista semiestructurada, a diez expertos con trayectoria contrastada en la profesión. Los resultados apuntan hacia algunos estilos muy marcados, como el predominio de los colores cálidos y la escenografía exterior, además de la hegemonía del formato vertical. Sin embargo, en líneas generales, los profesionales conservan sus propios cánones y estilo, sacando partido a la red, principalmente, para difundir su trabajo.[Abstract] The emergence of Instagram and advances in technology have democratised photography in what is an increasingly visual world. In this new environment, the role of professional photographers is constantly changing and evolving in response to trends on social media that have become accepted and expected by most users. Owing to its visual nature, the fashion industry has a very large presence on Instagram. This article explores the perceptions of professional fashion photographers regarding the influence of Instagram on their work. The study uses a qualitative methodology involving semi-structured interviews with ten experts with a proved track record in the sector. The results reveal a number of marked styles, such as the predominance of warm colours, external locations and vertical formats. In general terms, however, the professionals surveyed follow their own styles and canons, and use Instagram mainly to disseminate their work

    Las revistas científico-técnicas españolas de ciencias de la actividad física y el deporte: adecuación a las normas ISO y grado de normalización

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    The objective of this paper is to know the normalization grade and adjustment of Spanish scientific and technical journals of Physical Activity and Sport Sciences to various key epigraphs of the ISO 8-1977 and ISO 215-1986 norms. Also two indexes are made to calculate the General Normalization Grade (GGN) and the Fundamental Normalization Grade (GFN) of the journals. Results show that journals adjustment to ISO 8-1977 is equivalent to the journals of other Spanish fields as Economy and Technology, while it is less adjusted in relation to ISO 215- 1986. Most of the journals show an inferior GFN respective to its GGN. A considerable range of improvement in the journals studied, especially in the fundamental aspects of the ISO 215-1986 norm and some of the ISO 8-1977 norm, is the main conclusion of the study
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