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Papers by francisco soto

Research paper thumbnail of Construcciones arrecifales del Devónico de la Cordillera Cantábrica (NO de España)

Spanish Journal of Palaeontology

En la región astur-leonesa de la Cordillera Cantábrica existió un desarrollo arrecifal importante... more En la región astur-leonesa de la Cordillera Cantábrica existió un desarrollo arrecifal importante durante el Devónico. Las construcciones arrecifales más ampliamente representadas se originaron a fines del Devónico Inferior (Emsiense Superior) y durante el Devónico Medio (Givetiense), coincidiendo con el depósito de las formaciones carbonatadas Moniello-Santa Lucía y Candás-Portilla, respectivamente. Episodios arrecifales de menor importancia se produjeron, además, en niveles estratigráficos más bajos (Grupo Rañeces-La Vid, Emsiense Superior) y más altos (Formación Piñeres-Nocedo, Frasniense). Las bioconstrucciones más frecuentes corresponden a biostromos, aunque existe también un desarrollo de biohermos. En líneas generales, en la Formación Moniello-Santa Lucía, los estromatopóridos son los principales responsables de las estructuras arrecifales, mientras que en las restantes formaciones, las bioconstrucciones más comunes están edificadas por corales rugosos y tabulados. La integra...

Research paper thumbnail of Importancia y evolución del concepto de conciencia del tiempo en la fenomenología de Edmund Husserl

Contrastes. Revista Internacional de Filosofía, 2009

ResumenEste estudio ofrece una presentación del trabajo de investigación desarrollado en una tesi... more ResumenEste estudio ofrece una presentación del trabajo de investigación desarrollado en una tesis doctoral sobre el problema de la conciencia del tiempo en la fenomenología de Husserl defendida en la Universidad de Barcelona en abril del 2007. Tras justificar la importancia que el tema tiene para el pensamiento de Husserl son presentados los diferentes acercamientos a esta cuestión en cada una de las épocas de su pensamiento, distinguiendo fundamentalmente tres periodos: las lecciones sobre la conciencia interna del tiempo (1904/05), los manuscritos de Bernau (1917/18) y los manuscritos C (1929/34).Palabras claveFenomenología, tiempo, conciencia, Husserl.This paper offers a general overview of a research developed and defended as a PhD at the University of Barcelona in April 2007 concerning the problem of time- consciousness in Husserl’s phenomenology. After justifying the relevance of the subject to Husserl, we present the different approaches to the problem of time-consciousness ...

Research paper thumbnail of El límite Eifeliense/Givetiense (Devónico Medio) en la Cordillera Cantábrica (N de España)

Spanish Journal of Palaeontology, 2022

El límite Eifeliense/Givetiense (Devónico Medio) resulta difícil de establecer bioestratigráficam... more El límite Eifeliense/Givetiense (Devónico Medio) resulta difícil de establecer bioestratigráficamente a escala global, sobre todo en el ámbito de facies marinas someras. En la Península Ibérica, además, diversas circunstancias paleogeográficas y tectónicas impidieron el desarrollo de sucesiones continuas en el intervalo correspondiente salvo, quizás, en la Cordillera Cantábrica (N de España). Se analiza la posibilidad de identificar el límite Eifeliense/Givetiense en dicha región, mediante el estudio de las señales del evento global Kacak-otomari en una localidad muy bien expuesta de la Formación Huergas, en Aleje (León), donde hay faunas fósiles relativamente abundantes, pero poco características, constituidas, sobre todo, por braquiópodos y corales.

Research paper thumbnail of Tabulate Corals and Stratigraphy of Lower Devonian and Mississippian Rocks Near Barcelona (Catalonian Coastal Ranges, Northeast Spain)

�n this paper the content of tabulate corals of the Olorda �Lower Devonian� and �l Papiol �Missis... more �n this paper the content of tabulate corals of the Olorda �Lower Devonian� and �l Papiol �Mississipian� Formations near Barcelona (Catalonian Coastal Ranges, NE Spain) are described for the first time. The Olorda Formation was studied in the Bruguers section, where two new tabulate coral species, Petridictyum casanovai n. sp. and Procteria �Granulidictyum�? gavaensis n. sp., have been collected. The �l Papiol Formation was studied in the �l Papiol and Cánoves sections, and four tabulate coral taxa, Sutherlandia? sp., Smythina humilis �Hinde, 1896�, Palaeacis sp. and Cladochonus sp., have been recognised. �n addition, the succession of the Olorda Formation in Bruguers is described. Lochkovian-lowermost Pragian age is established for the B Member of this formation in Bruguers and this section is correlated with the t��pe section of the formation in Santa Creu d’Olorda. Finall��, it is deduced that the sedimentation of the upper part �B Member� of the Olorda Formation, in Bruguers, an...

Research paper thumbnail of Rhizaphyllum Lindstrom, 1866 (Rugosa) del Devónico Inferior (Lochkoviense) en el SE de las Montañas de Tian-Shan (NO de China)

Spanish Journal of Palaeontology, 2022

En el presente trabajo se describen varias especies del genero Rhizaphyllum Lindstrom, procedente... more En el presente trabajo se describen varias especies del genero Rhizaphyllum Lindstrom, procedentes de la Formación Arpishmebulaq (Lochkoviense), en el SE de las Montañas de Tian-Shan (provincia de Xinjiang, NO de China). Las descripciones realizadas comprenden cinco especies, de !as cuales Rhizophyllum extensum se propone como nueva, R. sp. A y R. sp. B son también, probablemente, nuevas, pero la falta de material más abundante y mejor conservado hace que ias mantengamos, por el momento, en nomenclatura abierta. R. hedini (Regnell) era conocida solo por su morfología externa y ahora se describen por primera vez sus estructuras internas. Finalmente, R. cf. enorme (Etheridge) no habia sido citada nunca en China y su presencia en el area de Arpishmebulaq confirma relaciones biogeograficas durante el Lochkoviense con los Montes Urales, Salair, Asia Central (Altai) y Este de Australia.

Research paper thumbnail of Corales rugosos (Tryplasmatidae, Mucophyllidae y Cystiphyllidae) de la Formación Arpishmebulaq (Lochkoviense) en el SE de las montakas ke Tian-Shan (NO de China)

Spanish Journal of Palaeontology, 2021

En el presente trabajo se describen siete especies de corales rugosos pertenecientes a los género... more En el presente trabajo se describen siete especies de corales rugosos pertenecientes a los géneros Tryplasma Lonsdale, 1845, Pseudotryplasma Ivaniya, 1958 y Mesophyllum Schlüter, l889 [subgénero Mesophyllum (Cystiphylloides) Chapman, 1893, sensu Birenheide, 1974] procedentes de la Formación Arpishmebulaq (Lochkoviense), en la sección estratigráfica de Arpishmebulaq (provincia de Xinjiang, SE de las Montañas de Tian-Shan, NO de China). Con la excepción de las especies Mesophyllum (Cystiphylloides) corniculum (Regnell, 1941) y M. (C.) cf. laticystis (Regnell, 1941) que eran conocidas ya en las Montañas de Tian-Shan (NO de China), las demás especies/subespecies incluidas en el trabajo, Tryplasma aequabile Lonsdale, 1845, Typlasma hercynica (Peetz, 1901), T. cf. tomtchumyshensis Zheltonogova, 1961, Pseudotryplasma sp. A y Mesophyllum (Cystiphylloides) macrocystis cf. macrocystis (Schlüter, 1889) han sido citadas en determinadas localidades, especialmente de la Federación Rusa. Las distr...

Research paper thumbnail of Corales tabulados estratigrafía del Devónico Inferior del Misisípico en las inmediaciones de Barcelona Cordilleras Costeras Catalanas, nordeste de España)

Revista Espanola De Paleontologia, Apr 1, 2011

�n this paper the content of tabulate corals of the Olorda �Lower Devonian� and �l Papiol �Missis... more �n this paper the content of tabulate corals of the Olorda �Lower Devonian� and �l Papiol �Mississipian� Formations near Barcelona (Catalonian Coastal Ranges, NE Spain) are described for the first time. The Olorda Formation was studied in the Bruguers section, where two new tabulate coral species, Petridictyum casanovai n. sp. and Procteria �Granulidictyum�? gavaensis n. sp., have been collected. The �l Papiol Formation was studied in the �l Papiol and Cánoves sections, and four tabulate coral taxa, Sutherlandia? sp., Smythina humilis �Hinde, 1896�, Palaeacis sp. and Cladochonus sp., have been recognised. �n addition, the succession of the Olorda Formation in Bruguers is described. Lochkovian-lowermost Pragian age is established for the B Member of this formation in Bruguers and this section is correlated with the t��pe section of the formation in Santa Creu d'Olorda. Finall��, it is deduced that the sedimentation of the upper part �B Member� of the Olorda Formation, in Bruguers, and the �l Papiol Formation, in the �l Papiol, took place on a mudd�� and soft bottom, t��pical of still waters, with scarce terrigenous supplies.

Research paper thumbnail of Tres etapas en el estudio del concepto de teleología en Edmund Husserl: la evidencia y sistemeticidad en la teoría del conocimiento, la renovación ética y la razón en la historia

Pensamiento Revista De Investigacion E Informacion Filosofica, 2013

Husserl’s phenomenology can be apprehended on the whole as a teleology of reason which consists o... more Husserl’s phenomenology can be apprehended on the whole as a teleology of reason which consists of the aspiration to the greatest possible rationality in the cognitive, practical-individual and practical-communitarian or historic field. Following this tripartite division this paper analyzes the appearances of this concept in several texts of Husserl’s thinking: Logical Investigations (1900-1901), Renewal of human being and of culture (1932-1937), some manuscripts of the 30’s about teleology, the Crisis (1936) and the complementary text to the Crisis number 32 «Teleology in the history of philosophy»(1936). Finally the paper deals with an introduction to a possible analysis of the divine from the concept of teleology and a discussion about how far the concept of teleology can be tackled by phenomenology or would have to be studied exclusively by theology. (1932-1937), some manuscripts of the 30’s about teleology, the

Research paper thumbnail of Evaluation of a MPB70-ELISA to differentiate Mycobacterium bovis from M. avium-sensitized swine

Pesquisa Veterinária Brasileira, 2014

Swine are susceptible to different mycobacteria species, being Mycobacterium bovis an agent of tu... more Swine are susceptible to different mycobacteria species, being Mycobacterium bovis an agent of tuberculosis, with most significant zoonotic risks, while M. avium determines a granulomatous lymphadenitis with low zoonotic risk. Currently performed intradermal tests present some important limitations, such as the lack of ability to detect anergic animals or to differentiate among mycobacterial species. In order to improve the TB diagnosis, serological assays have been developed, with encouraging results. The purpose of this study was to evaluate the performance of a MPB70-ELISA in 82 piglets divided into four groups: sensitized by inactivated M. bovis, M. avium, inoculated with oil adjuvant, or with saline solution. The test was able to discriminate between an animal sensitized by M. bovis and animals of the three other groups, including M. avium-sensitized animals; for this reason, we suggest that MPB70-ELISA could be used as a complementary tool for discriminating the agent of the m...

Research paper thumbnail of Earliest Pragian (Early Devonian) corals and stromatoporoids from reefal settings in the Cantabrian Zone (N Spain)

Research paper thumbnail of Utilidad de ePEAT en determinar candidatura para implante coclear en pacientes pediátricos con malformaciones de oído interno: Comunicación preliminar

Revista de otorrinolaringología y cirugía de cabeza y cuello, 2012

En candidatos a implante coclear con malformaciones del oído interno donde se encuentra un nervio... more En candidatos a implante coclear con malformaciones del oído interno donde se encuentra un nervio coclear anormal, los estudios tradicionales y las imágenes muchas veces no pueden dar respuesta definitiva acerca de la funcionalidad y presencia del nervio coclear. Para esto ayudarían los estudios de electrofisiología. Se presentan tres casos clínicos de pacientes con malformaciones del oído interno que fueron evaluados con ePEAT para ayudar a determinar su candidatura a implante coclear. Los estudios electrofisiológicos no reemplazan a los estudios tradicionales de evaluación auditiva ni a los estudios por imágenes, sino que los complementan. Los casos presentados, demuestran que en casos de malformaciones de oído interno o CAI muy estrecho, en que se cuestiona seriamente la existencia de un nervio coclear funcional, y en casos de neuropatía auditiva, se hace necesario evaluar la función de la cóclea separadamente de la del nervio auditivo y la función del tronco. Para esto se utilizamos los ePEAT. Los ePEAT entregan información valiosísima ya que nos permite conocer las reales capacidades de los pacientes para transmitir un estímulo auditivo hacia el sistema nervioso central, definiendo mejor las expectativas con el uso implante, asistiéndonos en nuestra toma de decisiones.

Research paper thumbnail of Phagodeterrence by Quassia amara (Simaroubaceae) wood extract fractions on Hypsipyla grandella (Lepidoptera: Pyralidae) larvae

Revista de Biología Tropical, 2010

In Latin America and the Caribbean, precious wood species like mahoganies (Swietenia spp.) and ce... more In Latin America and the Caribbean, precious wood species like mahoganies (Swietenia spp.) and cedars (Cedrela spp.) are seriously injured by the mahogany shootborer, Hypsipyla grandella (Zeller) (Lepidoptera: Pyralidae) larva, which bores into the main shoot of trees. In previous experiments focused on searching for a preventive method for managing this pest, a wood extract of bitterwood, Quassia amara L. ex Blom (Simaroubaceae) had been shown to cause phagodeterrence to larvae. Therefore, three fractions (water, methanol and diethyl ether) of a wood extract were tested for their phagodeterrence to larvae, by means of laboratory and greenhouse trials. Phagodeterrence was assessed by determining their effect on foliage consumption, mortality and signs of damage (number of orifices, sawdust piles, fallen shoots, number of tunnels and tunnel length) caused by larvae on Spanish cedar (C. odorata). Both the methanol and diethyl ether fractions caused phagodeterrence, by strongly reducing foliage consumption and signs of damage, while not causing larval mortality. The lowest concentration at which phagodeterrence was detected for the methanol fraction corresponded to 0.0625%, which is equivalent to a 1.0% of the bitterwood crude extract. However, results with the diethyl ether fraction were unsatisfactory, as none of the treatments differed from the solvent, possibly because of an adverse effect of the solvent on foliar tissues. Phagodeterrent principles from Q. amara derivatives may play an important role in dealing with H. grandella if they are complemented with other integrated pest management preventative tactics.

Research paper thumbnail of Padronização do teste imunoalérgico aplicado ao diagnóstico da tuberculose e micobacterioses em suínos (Sus scrofa) experimentalmente sensibilizados com suspensões oleosas de Mycobacterium bovis ou M. avium inativados

Pesquisa Veterinária Brasileira, 2014

Foi investigado o valor diagnóstico da resposta alérgica cutânea em leitões experimentalmente sen... more Foi investigado o valor diagnóstico da resposta alérgica cutânea em leitões experimentalmente sensibilizados, pela via intramuscular, com suspensões oleosas de Mycobacterium bovis ou M. avium inativados pelo calor.Foram utilizados 91 animais, divididos em quatro grupos: grupos A e B, cada um com 25 indivíduos, grupos C e D com 21 e 20 indivíduos respectivamente, balanceando-se as características de raça, linhagem, faixa etária e sexo. Aos 30 dias de idade, todos os animais foram submetidos a uma triagem com a aplicação de tuberculina PPD bovina, pela via intradérmica na base da orelha e não houve qualquer tipo de reação. Decorridos 60 dias do teste tuberculínico de triagem, o grupo A recebeu injeção intramuscular de 0,5 mL de uma suspensão oleosa de M. avium estirpe D4; o grupo B recebeu 0,5 mL de uma suspensão oleosa de M. bovis estirpe AN5; o grupo C (controle I), recebeu 0,5 mL do adjuvante oleoso; e o grupo D (controle II), recebeu 0,5 mL de solução fisiológica. Após 30 dias da ...

Research paper thumbnail of La arqueología en la escuela taller Parque Guadalteba. De la formación al empleo y del olvido al desarrollo del patrimonio arqueológico de la comarca del …

Mainake, 2010

Resumen: Se exponen los trabajos que ha desarrollado el módulo de Arqueología de la 10 Escuela Ta... more Resumen: Se exponen los trabajos que ha desarrollado el módulo de Arqueología de la 10 Escuela Taller Parque Guadalteba, promovida por el Consorcio Guadalteba, y que ha posibilitado el conocimiento, la valorización y el desarrollo del patrimonio arqueológico ...

Research paper thumbnail of Viaje a La Habana de Reinaldo Arenas

Revista Iberoamericana, 1991

Research paper thumbnail of Voluntad de vivir manifestándose de Reinaldo Arenas

Revista Iberoamericana, 1990

6xodo de animales hacia las tierras calidas del Sur. En un capitulo final, que Ileva por titulo <... more 6xodo de animales hacia las tierras calidas del Sur. En un capitulo final, que Ileva por titulo <, Juan se imagina a los animales pasando por la puerta liberadora. Sin embargo, al terminar, comenta: «Todos menos yo, el portero, que desde afuera los vere alejarse definitivamente>> (p. 173). Juan, o sea, el hombre, se queda fuera, solo, anorando o imaginando c6mo serfa vivir en un mundo sin miedo, sin enfermedades, sin sufrimientos ni frustraciones. El portero se desarrolla en el ano 1992. La intenci6n par6dica de socavar el quinto centenario del «descubrimiento>> de America es evidente. ,Qu6 salvaci6n puede esperar Latinoamerica, la cual se encuentra plagada cada vez mas por la desigualdad, dictadores de derecha e izquierda, incesantes intervenciones extranjeras, etc., despu6s de quinientos anios de supuesta <«civilizaci6n europea y norteamericana? Al hablar de El portero, Arenas ha comentado: <>. La dclave de la visi6n novelistica areniana reside precisamente en ofrecer, y defender a la vez vehementemente, el desenfrenado recorrido de la imaginaci6n y la fantasia como nico escape a la asombrosa y s6rdida realidad humana. Recordemos a las figuras de Celestino (Celestino antes del alba), Fray Servando (El mundo alucinante), Fortunato (El palacio de las blanquisimas mofetas), H6ctor (Otra vez el mar), Arturo (Arturo, la estrella mds brillante), etc. El portero es una fhbula moderna que habla del fracaso humano y de la deplorable espantosa <«civilizaci6n humana. En un momento de la novela, un mono, frente a la asamblea de animales en el s6tano del edificio, revela la lamentable situaci6n del hombre, no digna de imitarse, al decir: <<Pero en el hombre (al que ustedes desgraciadamente imitan en vez de

Research paper thumbnail of El portero de Reinaldo Arenas

Revista Iberoamericana, 1990

Research paper thumbnail of Design and validation of a wireless sensor network architecture for precision horticulture applications

Precision Agriculture, 2010

This paper proposes a general wireless sensor network architecture for monitoring horticultural c... more This paper proposes a general wireless sensor network architecture for monitoring horticultural crops that are distributed among small plots scattered at distances of up to 10 km from one another. The technology used for the real implementation of the architecture is based on the B-MAC (Berkeley Medium Access Control) medium access protocol to assure a high degree of sensor node power autonomy. To resolve this issue, a series of specialized sensor nodes (Soil-Mote, Environmental-Mote and Water-Mote) have been developed along with a gateway to interconnect them with the farm central offices. Before starting device development, simulations were conducted to ensure that acceptable performance would be achieved with the selected technology in terms of node autonomy, achieved throughput and delays. To that end, it was necessary to implement the selected B-MAC protocol in the ns-2 (Network Simulator-2) simulation framework. The final system was deployed on a real crop to check and validate the simulation results against experimental results.

Research paper thumbnail of Effects of the utilization of homeopathic elements in commercial diluent on swine sperm viability

In Vitro Cellular & Developmental Biology - Animal, 2011

It has been speculated that the homeopathic treatment of sperm cells in order to improve semen qu... more It has been speculated that the homeopathic treatment of sperm cells in order to improve semen quality could be promising. However, few data is available and its use in spermatozoa requires investigation. It is well established that mitochondrial membrane potential is an important viability parameter of spermatozoa and it is intimately related to reproductive efficiency. In this manner, new technologies in order to improve the activity of sperm cells and, finally, the fecundity of swine herds are of extremely importance. Due to the lack of knowledge of homeopathic treatment effect on spermatozoa, the aim of the present study was to verify the effect of three different homeopathic treatments on viability of boar sperm cells. Three homeopathic treatments composed by Pulsatila CH6, Pulsatila and Avena CH6, Avena CH6 and one control treatment (sucrose) were added to diluted boar semen, which were cooled for 24 or 48 h. Interestingly, no positive effect of homeopathic treatments was observed over semen viability. However, it was demonstrated that the 24 h of cooling storage provided more viable sperm cells when compared to the 48-h period. This effect of storage period on sperm viability was assessed by intact plasmatic membrane, intact acrosome and mitochondrial membrane potential evaluation. Keywords Homeopathy. Swine semen. Sperm viability Homeopathy is used in the treatment and prevention of many diseases in humans and animals, and studies have already confirmed its efficiency, it is object of various

Research paper thumbnail of Reefal and mud mound facies development in the Lower Devonian La Vid Group at the Colle outcrops (León province, Cantabrian Zone, NW Spain)

Facies, 2006

In the locality of Colle (Cantabrian Zone, NW Spain), the upper part of the Valporquero Shale For... more In the locality of Colle (Cantabrian Zone, NW Spain), the upper part of the Valporquero Shale Formation (Emsian, La Vid Group) contains an interval of shales and marlstones (barren, greenish-grey shales and fossiliferous, greenish-grey or reddish shales/marlstones) with beds and packages of homogeneous and cross-bedded skeletal limestones. Metre-scale mud mounds and coral biostromes occur encased in the fossiliferous reddish and greenish-grey shale/marlstones, respectively, with the coral biostromes overlying conspicuous skeletal limestone bodies. These rocks were deposited on a carbonate ramp, ranging from above storm wave base for the cross-bedded skeletal limestones to below the storm wave base for the remaining deposits, organic buildups included. The vertical stacking of these facies and the occurrence of the two types of buildups are interpreted to reflect the interplay among several (possibly 4th and 5th) orders of relative sea-level variations, during a 3rd-order highstand. Coral biostromes occur in early 5th-order transgressive system tracts developed within late 4th-order highstand, and are interpreted to have thrived on a stable granular substrate (skeletal limestones) in non-turbid waters, being later aborted by the

Research paper thumbnail of Construcciones arrecifales del Devónico de la Cordillera Cantábrica (NO de España)

Spanish Journal of Palaeontology

En la región astur-leonesa de la Cordillera Cantábrica existió un desarrollo arrecifal importante... more En la región astur-leonesa de la Cordillera Cantábrica existió un desarrollo arrecifal importante durante el Devónico. Las construcciones arrecifales más ampliamente representadas se originaron a fines del Devónico Inferior (Emsiense Superior) y durante el Devónico Medio (Givetiense), coincidiendo con el depósito de las formaciones carbonatadas Moniello-Santa Lucía y Candás-Portilla, respectivamente. Episodios arrecifales de menor importancia se produjeron, además, en niveles estratigráficos más bajos (Grupo Rañeces-La Vid, Emsiense Superior) y más altos (Formación Piñeres-Nocedo, Frasniense). Las bioconstrucciones más frecuentes corresponden a biostromos, aunque existe también un desarrollo de biohermos. En líneas generales, en la Formación Moniello-Santa Lucía, los estromatopóridos son los principales responsables de las estructuras arrecifales, mientras que en las restantes formaciones, las bioconstrucciones más comunes están edificadas por corales rugosos y tabulados. La integra...

Research paper thumbnail of Importancia y evolución del concepto de conciencia del tiempo en la fenomenología de Edmund Husserl

Contrastes. Revista Internacional de Filosofía, 2009

ResumenEste estudio ofrece una presentación del trabajo de investigación desarrollado en una tesi... more ResumenEste estudio ofrece una presentación del trabajo de investigación desarrollado en una tesis doctoral sobre el problema de la conciencia del tiempo en la fenomenología de Husserl defendida en la Universidad de Barcelona en abril del 2007. Tras justificar la importancia que el tema tiene para el pensamiento de Husserl son presentados los diferentes acercamientos a esta cuestión en cada una de las épocas de su pensamiento, distinguiendo fundamentalmente tres periodos: las lecciones sobre la conciencia interna del tiempo (1904/05), los manuscritos de Bernau (1917/18) y los manuscritos C (1929/34).Palabras claveFenomenología, tiempo, conciencia, Husserl.This paper offers a general overview of a research developed and defended as a PhD at the University of Barcelona in April 2007 concerning the problem of time- consciousness in Husserl’s phenomenology. After justifying the relevance of the subject to Husserl, we present the different approaches to the problem of time-consciousness ...

Research paper thumbnail of El límite Eifeliense/Givetiense (Devónico Medio) en la Cordillera Cantábrica (N de España)

Spanish Journal of Palaeontology, 2022

El límite Eifeliense/Givetiense (Devónico Medio) resulta difícil de establecer bioestratigráficam... more El límite Eifeliense/Givetiense (Devónico Medio) resulta difícil de establecer bioestratigráficamente a escala global, sobre todo en el ámbito de facies marinas someras. En la Península Ibérica, además, diversas circunstancias paleogeográficas y tectónicas impidieron el desarrollo de sucesiones continuas en el intervalo correspondiente salvo, quizás, en la Cordillera Cantábrica (N de España). Se analiza la posibilidad de identificar el límite Eifeliense/Givetiense en dicha región, mediante el estudio de las señales del evento global Kacak-otomari en una localidad muy bien expuesta de la Formación Huergas, en Aleje (León), donde hay faunas fósiles relativamente abundantes, pero poco características, constituidas, sobre todo, por braquiópodos y corales.

Research paper thumbnail of Tabulate Corals and Stratigraphy of Lower Devonian and Mississippian Rocks Near Barcelona (Catalonian Coastal Ranges, Northeast Spain)

�n this paper the content of tabulate corals of the Olorda �Lower Devonian� and �l Papiol �Missis... more �n this paper the content of tabulate corals of the Olorda �Lower Devonian� and �l Papiol �Mississipian� Formations near Barcelona (Catalonian Coastal Ranges, NE Spain) are described for the first time. The Olorda Formation was studied in the Bruguers section, where two new tabulate coral species, Petridictyum casanovai n. sp. and Procteria �Granulidictyum�? gavaensis n. sp., have been collected. The �l Papiol Formation was studied in the �l Papiol and Cánoves sections, and four tabulate coral taxa, Sutherlandia? sp., Smythina humilis �Hinde, 1896�, Palaeacis sp. and Cladochonus sp., have been recognised. �n addition, the succession of the Olorda Formation in Bruguers is described. Lochkovian-lowermost Pragian age is established for the B Member of this formation in Bruguers and this section is correlated with the t��pe section of the formation in Santa Creu d’Olorda. Finall��, it is deduced that the sedimentation of the upper part �B Member� of the Olorda Formation, in Bruguers, an...

Research paper thumbnail of Rhizaphyllum Lindstrom, 1866 (Rugosa) del Devónico Inferior (Lochkoviense) en el SE de las Montañas de Tian-Shan (NO de China)

Spanish Journal of Palaeontology, 2022

En el presente trabajo se describen varias especies del genero Rhizaphyllum Lindstrom, procedente... more En el presente trabajo se describen varias especies del genero Rhizaphyllum Lindstrom, procedentes de la Formación Arpishmebulaq (Lochkoviense), en el SE de las Montañas de Tian-Shan (provincia de Xinjiang, NO de China). Las descripciones realizadas comprenden cinco especies, de !as cuales Rhizophyllum extensum se propone como nueva, R. sp. A y R. sp. B son también, probablemente, nuevas, pero la falta de material más abundante y mejor conservado hace que ias mantengamos, por el momento, en nomenclatura abierta. R. hedini (Regnell) era conocida solo por su morfología externa y ahora se describen por primera vez sus estructuras internas. Finalmente, R. cf. enorme (Etheridge) no habia sido citada nunca en China y su presencia en el area de Arpishmebulaq confirma relaciones biogeograficas durante el Lochkoviense con los Montes Urales, Salair, Asia Central (Altai) y Este de Australia.

Research paper thumbnail of Corales rugosos (Tryplasmatidae, Mucophyllidae y Cystiphyllidae) de la Formación Arpishmebulaq (Lochkoviense) en el SE de las montakas ke Tian-Shan (NO de China)

Spanish Journal of Palaeontology, 2021

En el presente trabajo se describen siete especies de corales rugosos pertenecientes a los género... more En el presente trabajo se describen siete especies de corales rugosos pertenecientes a los géneros Tryplasma Lonsdale, 1845, Pseudotryplasma Ivaniya, 1958 y Mesophyllum Schlüter, l889 [subgénero Mesophyllum (Cystiphylloides) Chapman, 1893, sensu Birenheide, 1974] procedentes de la Formación Arpishmebulaq (Lochkoviense), en la sección estratigráfica de Arpishmebulaq (provincia de Xinjiang, SE de las Montañas de Tian-Shan, NO de China). Con la excepción de las especies Mesophyllum (Cystiphylloides) corniculum (Regnell, 1941) y M. (C.) cf. laticystis (Regnell, 1941) que eran conocidas ya en las Montañas de Tian-Shan (NO de China), las demás especies/subespecies incluidas en el trabajo, Tryplasma aequabile Lonsdale, 1845, Typlasma hercynica (Peetz, 1901), T. cf. tomtchumyshensis Zheltonogova, 1961, Pseudotryplasma sp. A y Mesophyllum (Cystiphylloides) macrocystis cf. macrocystis (Schlüter, 1889) han sido citadas en determinadas localidades, especialmente de la Federación Rusa. Las distr...

Research paper thumbnail of Corales tabulados estratigrafía del Devónico Inferior del Misisípico en las inmediaciones de Barcelona Cordilleras Costeras Catalanas, nordeste de España)

Revista Espanola De Paleontologia, Apr 1, 2011

�n this paper the content of tabulate corals of the Olorda �Lower Devonian� and �l Papiol �Missis... more �n this paper the content of tabulate corals of the Olorda �Lower Devonian� and �l Papiol �Mississipian� Formations near Barcelona (Catalonian Coastal Ranges, NE Spain) are described for the first time. The Olorda Formation was studied in the Bruguers section, where two new tabulate coral species, Petridictyum casanovai n. sp. and Procteria �Granulidictyum�? gavaensis n. sp., have been collected. The �l Papiol Formation was studied in the �l Papiol and Cánoves sections, and four tabulate coral taxa, Sutherlandia? sp., Smythina humilis �Hinde, 1896�, Palaeacis sp. and Cladochonus sp., have been recognised. �n addition, the succession of the Olorda Formation in Bruguers is described. Lochkovian-lowermost Pragian age is established for the B Member of this formation in Bruguers and this section is correlated with the t��pe section of the formation in Santa Creu d'Olorda. Finall��, it is deduced that the sedimentation of the upper part �B Member� of the Olorda Formation, in Bruguers, and the �l Papiol Formation, in the �l Papiol, took place on a mudd�� and soft bottom, t��pical of still waters, with scarce terrigenous supplies.

Research paper thumbnail of Tres etapas en el estudio del concepto de teleología en Edmund Husserl: la evidencia y sistemeticidad en la teoría del conocimiento, la renovación ética y la razón en la historia

Pensamiento Revista De Investigacion E Informacion Filosofica, 2013

Husserl’s phenomenology can be apprehended on the whole as a teleology of reason which consists o... more Husserl’s phenomenology can be apprehended on the whole as a teleology of reason which consists of the aspiration to the greatest possible rationality in the cognitive, practical-individual and practical-communitarian or historic field. Following this tripartite division this paper analyzes the appearances of this concept in several texts of Husserl’s thinking: Logical Investigations (1900-1901), Renewal of human being and of culture (1932-1937), some manuscripts of the 30’s about teleology, the Crisis (1936) and the complementary text to the Crisis number 32 «Teleology in the history of philosophy»(1936). Finally the paper deals with an introduction to a possible analysis of the divine from the concept of teleology and a discussion about how far the concept of teleology can be tackled by phenomenology or would have to be studied exclusively by theology. (1932-1937), some manuscripts of the 30’s about teleology, the

Research paper thumbnail of Evaluation of a MPB70-ELISA to differentiate Mycobacterium bovis from M. avium-sensitized swine

Pesquisa Veterinária Brasileira, 2014

Swine are susceptible to different mycobacteria species, being Mycobacterium bovis an agent of tu... more Swine are susceptible to different mycobacteria species, being Mycobacterium bovis an agent of tuberculosis, with most significant zoonotic risks, while M. avium determines a granulomatous lymphadenitis with low zoonotic risk. Currently performed intradermal tests present some important limitations, such as the lack of ability to detect anergic animals or to differentiate among mycobacterial species. In order to improve the TB diagnosis, serological assays have been developed, with encouraging results. The purpose of this study was to evaluate the performance of a MPB70-ELISA in 82 piglets divided into four groups: sensitized by inactivated M. bovis, M. avium, inoculated with oil adjuvant, or with saline solution. The test was able to discriminate between an animal sensitized by M. bovis and animals of the three other groups, including M. avium-sensitized animals; for this reason, we suggest that MPB70-ELISA could be used as a complementary tool for discriminating the agent of the m...

Research paper thumbnail of Earliest Pragian (Early Devonian) corals and stromatoporoids from reefal settings in the Cantabrian Zone (N Spain)

Research paper thumbnail of Utilidad de ePEAT en determinar candidatura para implante coclear en pacientes pediátricos con malformaciones de oído interno: Comunicación preliminar

Revista de otorrinolaringología y cirugía de cabeza y cuello, 2012

En candidatos a implante coclear con malformaciones del oído interno donde se encuentra un nervio... more En candidatos a implante coclear con malformaciones del oído interno donde se encuentra un nervio coclear anormal, los estudios tradicionales y las imágenes muchas veces no pueden dar respuesta definitiva acerca de la funcionalidad y presencia del nervio coclear. Para esto ayudarían los estudios de electrofisiología. Se presentan tres casos clínicos de pacientes con malformaciones del oído interno que fueron evaluados con ePEAT para ayudar a determinar su candidatura a implante coclear. Los estudios electrofisiológicos no reemplazan a los estudios tradicionales de evaluación auditiva ni a los estudios por imágenes, sino que los complementan. Los casos presentados, demuestran que en casos de malformaciones de oído interno o CAI muy estrecho, en que se cuestiona seriamente la existencia de un nervio coclear funcional, y en casos de neuropatía auditiva, se hace necesario evaluar la función de la cóclea separadamente de la del nervio auditivo y la función del tronco. Para esto se utilizamos los ePEAT. Los ePEAT entregan información valiosísima ya que nos permite conocer las reales capacidades de los pacientes para transmitir un estímulo auditivo hacia el sistema nervioso central, definiendo mejor las expectativas con el uso implante, asistiéndonos en nuestra toma de decisiones.

Research paper thumbnail of Phagodeterrence by Quassia amara (Simaroubaceae) wood extract fractions on Hypsipyla grandella (Lepidoptera: Pyralidae) larvae

Revista de Biología Tropical, 2010

In Latin America and the Caribbean, precious wood species like mahoganies (Swietenia spp.) and ce... more In Latin America and the Caribbean, precious wood species like mahoganies (Swietenia spp.) and cedars (Cedrela spp.) are seriously injured by the mahogany shootborer, Hypsipyla grandella (Zeller) (Lepidoptera: Pyralidae) larva, which bores into the main shoot of trees. In previous experiments focused on searching for a preventive method for managing this pest, a wood extract of bitterwood, Quassia amara L. ex Blom (Simaroubaceae) had been shown to cause phagodeterrence to larvae. Therefore, three fractions (water, methanol and diethyl ether) of a wood extract were tested for their phagodeterrence to larvae, by means of laboratory and greenhouse trials. Phagodeterrence was assessed by determining their effect on foliage consumption, mortality and signs of damage (number of orifices, sawdust piles, fallen shoots, number of tunnels and tunnel length) caused by larvae on Spanish cedar (C. odorata). Both the methanol and diethyl ether fractions caused phagodeterrence, by strongly reducing foliage consumption and signs of damage, while not causing larval mortality. The lowest concentration at which phagodeterrence was detected for the methanol fraction corresponded to 0.0625%, which is equivalent to a 1.0% of the bitterwood crude extract. However, results with the diethyl ether fraction were unsatisfactory, as none of the treatments differed from the solvent, possibly because of an adverse effect of the solvent on foliar tissues. Phagodeterrent principles from Q. amara derivatives may play an important role in dealing with H. grandella if they are complemented with other integrated pest management preventative tactics.

Research paper thumbnail of Padronização do teste imunoalérgico aplicado ao diagnóstico da tuberculose e micobacterioses em suínos (Sus scrofa) experimentalmente sensibilizados com suspensões oleosas de Mycobacterium bovis ou M. avium inativados

Pesquisa Veterinária Brasileira, 2014

Foi investigado o valor diagnóstico da resposta alérgica cutânea em leitões experimentalmente sen... more Foi investigado o valor diagnóstico da resposta alérgica cutânea em leitões experimentalmente sensibilizados, pela via intramuscular, com suspensões oleosas de Mycobacterium bovis ou M. avium inativados pelo calor.Foram utilizados 91 animais, divididos em quatro grupos: grupos A e B, cada um com 25 indivíduos, grupos C e D com 21 e 20 indivíduos respectivamente, balanceando-se as características de raça, linhagem, faixa etária e sexo. Aos 30 dias de idade, todos os animais foram submetidos a uma triagem com a aplicação de tuberculina PPD bovina, pela via intradérmica na base da orelha e não houve qualquer tipo de reação. Decorridos 60 dias do teste tuberculínico de triagem, o grupo A recebeu injeção intramuscular de 0,5 mL de uma suspensão oleosa de M. avium estirpe D4; o grupo B recebeu 0,5 mL de uma suspensão oleosa de M. bovis estirpe AN5; o grupo C (controle I), recebeu 0,5 mL do adjuvante oleoso; e o grupo D (controle II), recebeu 0,5 mL de solução fisiológica. Após 30 dias da ...

Research paper thumbnail of La arqueología en la escuela taller Parque Guadalteba. De la formación al empleo y del olvido al desarrollo del patrimonio arqueológico de la comarca del …

Mainake, 2010

Resumen: Se exponen los trabajos que ha desarrollado el módulo de Arqueología de la 10 Escuela Ta... more Resumen: Se exponen los trabajos que ha desarrollado el módulo de Arqueología de la 10 Escuela Taller Parque Guadalteba, promovida por el Consorcio Guadalteba, y que ha posibilitado el conocimiento, la valorización y el desarrollo del patrimonio arqueológico ...

Research paper thumbnail of Viaje a La Habana de Reinaldo Arenas

Revista Iberoamericana, 1991

Research paper thumbnail of Voluntad de vivir manifestándose de Reinaldo Arenas

Revista Iberoamericana, 1990

6xodo de animales hacia las tierras calidas del Sur. En un capitulo final, que Ileva por titulo <... more 6xodo de animales hacia las tierras calidas del Sur. En un capitulo final, que Ileva por titulo <, Juan se imagina a los animales pasando por la puerta liberadora. Sin embargo, al terminar, comenta: «Todos menos yo, el portero, que desde afuera los vere alejarse definitivamente>> (p. 173). Juan, o sea, el hombre, se queda fuera, solo, anorando o imaginando c6mo serfa vivir en un mundo sin miedo, sin enfermedades, sin sufrimientos ni frustraciones. El portero se desarrolla en el ano 1992. La intenci6n par6dica de socavar el quinto centenario del «descubrimiento>> de America es evidente. ,Qu6 salvaci6n puede esperar Latinoamerica, la cual se encuentra plagada cada vez mas por la desigualdad, dictadores de derecha e izquierda, incesantes intervenciones extranjeras, etc., despu6s de quinientos anios de supuesta <«civilizaci6n europea y norteamericana? Al hablar de El portero, Arenas ha comentado: <>. La dclave de la visi6n novelistica areniana reside precisamente en ofrecer, y defender a la vez vehementemente, el desenfrenado recorrido de la imaginaci6n y la fantasia como nico escape a la asombrosa y s6rdida realidad humana. Recordemos a las figuras de Celestino (Celestino antes del alba), Fray Servando (El mundo alucinante), Fortunato (El palacio de las blanquisimas mofetas), H6ctor (Otra vez el mar), Arturo (Arturo, la estrella mds brillante), etc. El portero es una fhbula moderna que habla del fracaso humano y de la deplorable espantosa <«civilizaci6n humana. En un momento de la novela, un mono, frente a la asamblea de animales en el s6tano del edificio, revela la lamentable situaci6n del hombre, no digna de imitarse, al decir: <<Pero en el hombre (al que ustedes desgraciadamente imitan en vez de

Research paper thumbnail of El portero de Reinaldo Arenas

Revista Iberoamericana, 1990

Research paper thumbnail of Design and validation of a wireless sensor network architecture for precision horticulture applications

Precision Agriculture, 2010

This paper proposes a general wireless sensor network architecture for monitoring horticultural c... more This paper proposes a general wireless sensor network architecture for monitoring horticultural crops that are distributed among small plots scattered at distances of up to 10 km from one another. The technology used for the real implementation of the architecture is based on the B-MAC (Berkeley Medium Access Control) medium access protocol to assure a high degree of sensor node power autonomy. To resolve this issue, a series of specialized sensor nodes (Soil-Mote, Environmental-Mote and Water-Mote) have been developed along with a gateway to interconnect them with the farm central offices. Before starting device development, simulations were conducted to ensure that acceptable performance would be achieved with the selected technology in terms of node autonomy, achieved throughput and delays. To that end, it was necessary to implement the selected B-MAC protocol in the ns-2 (Network Simulator-2) simulation framework. The final system was deployed on a real crop to check and validate the simulation results against experimental results.

Research paper thumbnail of Effects of the utilization of homeopathic elements in commercial diluent on swine sperm viability

In Vitro Cellular & Developmental Biology - Animal, 2011

It has been speculated that the homeopathic treatment of sperm cells in order to improve semen qu... more It has been speculated that the homeopathic treatment of sperm cells in order to improve semen quality could be promising. However, few data is available and its use in spermatozoa requires investigation. It is well established that mitochondrial membrane potential is an important viability parameter of spermatozoa and it is intimately related to reproductive efficiency. In this manner, new technologies in order to improve the activity of sperm cells and, finally, the fecundity of swine herds are of extremely importance. Due to the lack of knowledge of homeopathic treatment effect on spermatozoa, the aim of the present study was to verify the effect of three different homeopathic treatments on viability of boar sperm cells. Three homeopathic treatments composed by Pulsatila CH6, Pulsatila and Avena CH6, Avena CH6 and one control treatment (sucrose) were added to diluted boar semen, which were cooled for 24 or 48 h. Interestingly, no positive effect of homeopathic treatments was observed over semen viability. However, it was demonstrated that the 24 h of cooling storage provided more viable sperm cells when compared to the 48-h period. This effect of storage period on sperm viability was assessed by intact plasmatic membrane, intact acrosome and mitochondrial membrane potential evaluation. Keywords Homeopathy. Swine semen. Sperm viability Homeopathy is used in the treatment and prevention of many diseases in humans and animals, and studies have already confirmed its efficiency, it is object of various

Research paper thumbnail of Reefal and mud mound facies development in the Lower Devonian La Vid Group at the Colle outcrops (León province, Cantabrian Zone, NW Spain)

Facies, 2006

In the locality of Colle (Cantabrian Zone, NW Spain), the upper part of the Valporquero Shale For... more In the locality of Colle (Cantabrian Zone, NW Spain), the upper part of the Valporquero Shale Formation (Emsian, La Vid Group) contains an interval of shales and marlstones (barren, greenish-grey shales and fossiliferous, greenish-grey or reddish shales/marlstones) with beds and packages of homogeneous and cross-bedded skeletal limestones. Metre-scale mud mounds and coral biostromes occur encased in the fossiliferous reddish and greenish-grey shale/marlstones, respectively, with the coral biostromes overlying conspicuous skeletal limestone bodies. These rocks were deposited on a carbonate ramp, ranging from above storm wave base for the cross-bedded skeletal limestones to below the storm wave base for the remaining deposits, organic buildups included. The vertical stacking of these facies and the occurrence of the two types of buildups are interpreted to reflect the interplay among several (possibly 4th and 5th) orders of relative sea-level variations, during a 3rd-order highstand. Coral biostromes occur in early 5th-order transgressive system tracts developed within late 4th-order highstand, and are interpreted to have thrived on a stable granular substrate (skeletal limestones) in non-turbid waters, being later aborted by the