Resumen: We concentrate on the analysis of the busy period and the waiting time distribution of a multi-server retrial queue in which primary arrivals occur according to a Markovian arrival process (MAP). Since the study of a model with an infinite retrial group seems intractable, we deal with a system having a finite buffer for the retrial group. The system is
analyzed in steady state by deriving expressions for (a) the Laplace–Stieltjes transforms of the busy period and the waiting time; (b) the probabiliy generating functions for the number of customers served during a busy period and the number of retrials made by a customer; and (c) various moments of quantites of interest. Some illustrative numerical examples are discussed.
Resumen: La percepción palinológica de la actividad antrópica se basa en la utilización de los llamados
indicadores polínicos de antropización (Iversen, 1949; Turner, 1964; Van Zeist, 1966; Berglund,
1969; Behre, 1981, 1986,
1988; Jalut, 1991; Richard, 1983, 1985, 1994a, 1994b, 1995, 1997); este
es el caso de las asociaciones de los palinomorfos nitrófilos de carácter antropozoógeno y antrópico,
asociados a los palinomorfos no polínicos de afinidad coprófila, que permiten la identificación
del uso del territorio.
En las secuencias polínicas de las turberas de la Tolla Collado de El Berrueco (El Berrueco, CAM)
y de la Tolla de Los Grifos (Rascafría, CAM), los indicadores polínicos de antropización han puesto
de manifiesto que el paisaje vegetal reconstruido, eminentemente herbáceo, está dominado por zonas
de pastizal dedicadas a la ganadería, unas veces trashumante y otras, más sedentario. Por otro lado, la
presencia de microfósiles no polínicos como Pseudoschizaea circula y Glomus cf. fasciculatum (Tipo
207), estarían relacionados posiblemente con el desarrollo de procesos erosivos in situ favorecidos
por el sobrepastoreo.
[ABSTRACT]
[Pollen and no-pollen record to detecte human activity during Late Holocene environments in
Guadarrama mountain range, Madrid (El Berrueco and Rascafría peats]. We present the results of a
palynologycal analyses (pollen and non-Pollen Palynomorphs) carried out in two cores obtained of
a deposit located in Guadarrama Range (Madrid. Spain). The principal aim is to obtain an association
of pollen and non-Pollen Palynomorphs (Iversen, 1949; Turner, 1964; Van Zeist, 1966; Berglund,
1969; Behre, 1981, 1986, 1988; Jalut, 1991; Richard, 1983,1985, 1994a, 1994b, 1995, 1997) in order
to define the human activity in the study area. Palynological data shows a landscape dominated by
herbaceous plants, where we distinguish two groups with diferents affinities; one group is formed by the anthropogenic which determine human uses, the other group is dominate by anthropozoogenic
taxa associated with animals. Coprophilous non-Pollen Palynomorphs that helped us to the interpretation
are represented for the Types 55A, 113, 165 y 368. The fluctuations between both groups establish
the different uses of the landscape. Pseudoschizaea circula and Glomus cf. fasciculatum (Tipo
207) presences, shows somme erosives phases due human activity.
Palabras clave: Sistema Central Español, Taxones antropozoógenos, Palinología, Holoceno creciente, Actividades humanas, Palinomorfos no polínicos, Central Mountain Range Spain, Anthropozoogenic taxa, Palynology, Late Holocene,
Human activities, Non pollen palynomorphs
Resumen: El propósito de este artículo es examinar algunas implicaciones de la obra de Franz Neumann, teórico de la Escuela de Frankfurt y autor de Behemoth. The Structure and Practice of National Socialism (1942). Frente a la comprensión del nacionalsocialismo como modelo de «capitalismo de Estado» (F. Pollock, M. Horkheimer), Neumann piensa el nazismo en los términos de un «capitalismo monopolista
totalitario», que mantiene la primacía de las relaciones económicas y erosiona elementos cruciales de la noción moderna de Estado. El análisis de Neumann tiene importantes consecuencias para la comprensión de las actuales conexiones entre poder, derecho y soberanía. [ABSTRACT]The aim of this paper is to review some implications of the work of the Frankfurt School theorist Franz Neumann, the author of Behemoth. The Structure and Practice of National Socialism (1942). Against the conception of National Socialism as a form of «state capitalism» (F. Pollock, M. Horkheimer), Neumann argues that German fascism should be read as a form of «totalitarian monopoly capitalism», that preserves the primacy of economic relations and threatens essential components of the modern idea of State. Neumann’s study provides important insights into the current relationship between power, law and sovereignty.
Palabras clave: Neumann, Pollock, capitalismo de Estado, Estado de derecho, Behemoth, Neumann, Pollock, State capitalism, Rule of law, Behemoth
Resumen: The deposit of Bou Ouzzal’s barite is located in the eastern extreme of the Moroccan Hercynian Massif-
Central, to approximately 7 km to the south of Khénifra. The mineralization occurs in the paleozoic schists
and late Visean limestones. The barite appears in the shape of veins and karst associated with oxides and
iron hydroxides. This
deposit is distinguished by his great heterogeneity and the variability of his composition.
In spite of the fact that the region has been an object of numbers mining works from 1922, date in which
the deposit was discovered, the analytical studies are scarce and half-close to the mineralization. The aim
of the present note is concentrated on the detailed description of the different generations of barite, his
distribution and relation with the iron’s minerals. The samples have been studied by polarizing microscopy,
SEM, XRD, XRF and EPMA.
This work is the preliminary result of the collaboration established between the University Mohammed VAgdal
and the University Complutense of Madrid within the framework of the Spanish-Moroccan Intervarsity
Cooperation’s program of the Spanish Agency for International Cooperation «AECI».
Palabras clave: Barite, XRD and XRF analysis, SEM, Bou Ouzzal, Morroco
Resumen: Aproximación al estudio, edición crítica y traducción del Memoriale uirtutum de Alfonso de Cartagena.
En cuanto al Memoriale uirtutum, una de las obras en las que mejor se aprecia el pensamiento de Cartagena, especialmente en lo relativo a la educación para la clase nobiliaria y el papel que la cultura y la ética deben jugar en ellas, se puede decir que ha permanecido ciertamente olvidada por los estudiosos del humanismo castellano.
Sólo la versión castellana ha sido editada y traducida por M. Campos Souto (2004), pero el texto latino permanece aún a la espera de una edición crítica, que es lo que se propone en este trabajo.
Palabras clave: Memoriale uirtutum; Alfonso de Cartegena; Filología latina;
