Carex modesti (Cyperaceae), a new species from southern Tanzania

A new species of Carex (Cyperaceae), Carex modesti, is described from southern Tanzania. It grows on stream sides and peat bogs at about 2750 m in the Kitulo Plateau. It is morphologically distinct from the similar species C. vallis-rosetto by its creeping rhizomes, coriaceous leaves and solitary spikes arising in each node. Carex modesti is included in Carex sect. Spirostachyae subsect. Elatae together with other Carex species from the tropical African mountain

Coltrane líder evolutivo desde 1959 a 1964

The following document is an example of Coltrane’s evolution in a five year time span (1959-1964), which left enormous and varied musical contributions. Giant Steps, Impressions and A Love Supreme will be the three records in discussion that underline his most important achievements. A parallelism between Coltrane’s music and his spiritual life, his influences and own musical formulas will be made evident. John Coltrane is one of the most evolved jazz musicians.El siguiente documento ejemplifica la evolución de Coltrane dentro de un período de cinco años (1959-1964), época en la que deja grandes y variados aportes musicales. Giant Steps, Impressions y A Love Supreme serán los tres discos a discutirse, resaltarán los aportes musicales más importantes del artista. Se podrá evidenciar un paralelismo entre la música de Coltrane y su vida espiritual, como también sus influencias y fórmulas creadas. John Coltrane es uno de los músicos de mayor evolución en el jazz

Carex modesti (Cyperaceae), a new species from southern Tanzania

A new species of Carex (Cyperaceae), Carex modesti, is described from southern Tanzania. It grows on stream sides and peat bogs at about 2750 m in the Kitulo Plateau. It is morphologically distinct from the similar species C. vallis-rosetto by its creeping rhizomes, coriaceous leaves and solitary spikes arising in each node. Carex modesti is included in Carex sect. Spirostachyae subsect. Elatae together with other Carex species from the tropical African mountain

The Dynamics of the Water-Electricity Nexus:How water availability affects electricity generation and its water consumption

Water is needed for electricity generation, for example, for hydropower plants or cooling water for thermal power plants. Freshwater is a scarce resource that will become increasingly scarce in the future as competition intensifies. It is, therefore, essential to map water-electricity relationships. This thesis first analyzes the existing literature on the water-electricity nexus and, subsequently, the temporal and spatial dynamics of electricity supply in Ecuador, which is a model for the global electricity supply. Only a few publications dominate the literature, especially publications from the last century for the U.S. so that new publications receive insufficient attention. The dissertation further shows that even in a wet country like Ecuador, fluctuations in water availability limit the production of hydropower plants, so that less electricity is produced for a few months. In the event of water shortages in the Pacific basin, hydropower plants in the Amazon take over. In the event of production loss in the Amazon basin, thermal power plants are used. These changes in electricity generation cause temporal and spatial changes in the water footprint (WF). When water availability is limited, water-efficient technologies are applied, decreasing the WF. Hydropower plants with a large water storage capacity also have variation in their WF due to the relationship of water availability, climate, and power planning. The assessment of the dynamics of the water-electricity system is essential for determining the best electricity mix with the lowest water consumption. This insight is also crucial for other countries

Digital Implementation of SISC Fuzzy Controllers

A classification of inference systems based on approximate reasoning techniques is proposed. An alternative realization method is described for the particular SISC case, which enables reducing the silicon area and increasing the operation speed, making it especially appropriate for real time control applications

La expresión de la finalidad en la Edad Media

This article tries to investigate the different ways of expressing finality and its evolution in medieval texts (from 13th, 14th and 15th centuries). All those syntactica forms that answer to the ‘human’ finality in the strict sense are compiled: that finality which starts from a human subject’s intention. Moreover, it is observed which contents can be conveyed with the formal models that are used for the intentional finality.Este artículo pretende determinar los distintos modos de expresar la finalidad y su evolución en textos medievales (de los siglos XIII, XIV y XV). Se recopilan todas aquellas formas sintácticas que responden a la finalidad propiamente ‘humana’: aquella que parte de la intención de un ‘sujeto humano’. Además, se observan qué contenidos se pueden recubrir con los modelos formales que se emplean para la finalidad intencional