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Zur Methodik der Energiebilanzierung von Biokraftstoffen

REA Auditado

Crop production is a conversion process of sun energy into biomass. Both the cultiva-tion area and the insolation stroking this area limit the energy output of the globe. Thus, food and energy crop production compete for insolation and area. LCA (ISO 14040) was developed for industrial products. Use of LCA in the field of organic farm-ing neglects usually input of sun energy, cultivation area and other basic inputs like precipitation, wind, the geochemical cycle, genetic information and propagation.

Tema: general: 

• Ciencias›Agricultura y Zoología

Public policies and food security and family farming networks: contributions to the construction of effectiveness indicators.

REA Auditado

This work presents a methodology for investigating the performance of public politics regarding food security networks formed in Brazilian municipalities aimed at increasing income and employment in familiar farming. These programs need to further develop the methodologies used for studying their efficiency so that they can reach a new stage in the improvement and use of management tools thereby achieving beteer results of social inclusion and/or food security. This paper constitutes a first effort to bring together indicators for the evaluation of the efficiency of public politicies.

Tema: general: 

• Ciencias›Agricultura y Zoología

Clay minerals as provenance indicators in continental lacustrine sequences: the Leza Formation, early Cretaceous, Cameros Basin, northern Spain

REA Auditado

Variations in clay mineral assemblages, changes in KuÈbler index (KI), and the
chemical composition of chlorites are used to identify source areas in the lacustrine materials in the
Lower Cretaceous Leza Limestone Formation of the Cameros Basin, northern Spain. This formation
has fairly homogeneous lithological characteristics and facies associations which do not allow for
identification and characterization of local source areas. The Arnedillo lithosome of the Leza
Limestone Formation contains a clay mineral association (Mg-chlorite, illite and smectite) indicative
of its provenance.

Tema: general: 

• Ciencias›Geología

Caracterización del índice de CO en 2.3 μm y su aplicación al estudio de poblaciones estelares en galaxias de primeros tipos

REA Auditado

Esta tesis doctoral se centra en el estudio de las poblaciones estelares de galaxias de primeros tipos analizando índices de intensidad de líneas definidos en la banda K. Por ello, presentamos una nueva biblioteca estelar en este intervalo espectral que contiene estrellas con un buen recubrimiento en los parámetros atmosféricos cuyos espectros están calibrados en flujo relativo, y definimos el índice Dco para medir la absorción del CO en 2.3 micras.

Tema: general: 

• Ciencias›Física

Evidence for surface uplift of the Atlas Mountains and the surrounding peripheral plateaux: Combining apatite fission-track results and geomorphic indicators in the Western Moroccan Meseta (coastal Variscan Paleozoic basement)

REA Auditado

This work represents an initial attempt to link the evolution of the topography in relation to the general
tectonic framework of western Morocco. For this purpose, in a section of the Western Moroccan Meseta
different tools are combined in order to attain the general objective. Apatite fission-track (AFT) data of
granitic rocks of the Rabat–Khenifra area give ages around 200 Ma with track length distributions which are
compatible with the thermal models already established for the area.

Tema: general: 

• Ciencias›Geología

Local fixed point indices of iterations of planar maps

REA Auditado

Let f : U →R2 be a continuous map, where U is an open
subset of R2. We consider a fixed point p of f which is neither a sink nor
a source and such that p is an isolated invariant set. Under these assumption
we prove, using Conley index methods and Nielsen theory, that the sequence of fixed point indices of iterations ind(fn, p) n=1 is periodic,bounded by 1, and has infinitely many non-positive terms, which is a generalization of Le Calvez and Yoccoz theorem [Annals of Math., 146 (1997), 241-293] onto the class of non-injective maps.

Tema: general: 

• Ciencias›Matemáticas

Sharks and rays (chondrichthyes) from the Upper Cretaceous red beds of the south-central Pyrenees (Lleida, Spain): indices of an India-Eurasia connection

REA Auditado

Six chondrichthyan taxa are recorded in Late Cretaceous (Maastrichtian) red beds of the south-central Pyrenees (Tremp Formation, Lleida, Spain), indicating marine influence in the palaeoenvironment. Two ray species found in Spain have been previously described in India. One ray species conforms to the Gondwanan genus 19dabatis and the endernic Indian species 19dabatis indicus Prasad and Cappetta, 1993 [Prasad, G.V.R., Cappetta, H., 1993. Late Cretaceous selachian from India and the age of the Deccan traps.

Tema: general: 

• Ciencias›Geología

Agri-environmental indicators in the management of farms: the Spanish case

REA Auditado

The current reform of the EC Agricultural Policy decouples subsidies from production and introduces the new concept of “eco-conditionality” which makes the receipt of
subsidies contingent on compliance with a number of environmental standards. This reform, put in place by the Commission, involves a high risk that the cultivation of
some Mediterranean products will be abandoned. Their producers will have to meet the challenge of competitiveness and avail themselves of appropriate mechanisms such as codes of good agricultural practices and the application of efficient management systems.

Tema: general: 

• Ciencias›Zoología (incluyendo Medicina Veterinaria)

Tsunami deposits as paleoseismic indicators: examples from the Spanish coast

REA Auditado

Tsunamis are usually associated with submarine tectonic activity. Tsunamis transform the shore owing to their erosive and sedimentary capacity. Evidence of tsunamis can be preserved in the geological record for millions of years. The tsunami sedimentary record is a useful tool for obtaining paleoseismic information since it is the only record available that allows us to detect and to analyze ancient offshore seismicity. Three examples of tsunami deposits which contribute to the knowledge of the paleoseismicity in the Gulf of Cádiz are presented.

Tema: general: 

• Ciencias›Geología

Assessment of food safety in organic farming

REA Auditado

Public concern about food safety in Europe has grown in response to the BSE scandal and problems with Salmonella and Campylobacter, etc. Such health and safety considerations are among the most important incentives for buying organic food, and have helped to promote rapid growth in the organic sector. Against this background the present article reviews food safety from an organic perspective. To our knowledge this has not been done previously. A novel definition is introduced which incorporates safety aspects of both the product and the agri-food-system.

Tema: general: 

• Ciencias›Agricultura y Zoología