Diet composition of fish species from the southern continental shelf of Colombia

The diet composition of 30 fish species belonging to 16 families from the Pacific Coast of Colombia is described. Benthic crustaceans (37.5%) and bony fishes (23.7%, chiefly demersal) were the most important food items for the fish species analyzed. Data on diet composition of the fish species are presented for the first time which can be a source of information for trophic modeling

Frequently hypercyclic translation semigroups

Frequent hypercyclicity for translation $C_0$-semigroups on weighted spaces of continuous functions is investigated. The results are achieved by establishing an analogy between frequent hypercyclicity for the translation semigroup and for weighted pseudo-shifts and by characterizing frequent hypercyclic weighted pseudo-shifts in spaces of vanishing sequences. Frequent hypercylic translation semigroups in weighted $L^p$-spaces are also characterized

Propuesta de Diseño de Rutas Turístico-Culturales mediante el Empleo de SIG: Un Caso Aplicado

Cultural tourism routes and itineraries are tourism promotion tools that have under-gone a remarkable development in recent years, thanks to their ability to enhance the value of cultural heritage. In this sense, national and international organizations as well as private initiatives have designed tourist routes that cover a wide range of topics, while cultural itineraries have been recognized at the institutional level by organizations such as ICOMOS or the Council of Europe. The main objective of this article is to offer a proposal for the design of cultural tourist routes through the use of a geographic information system. To achieve this goal, we start from a brief theoretical framework in which the tourist use of geographic information systems and the conceptualization of tourist routes and their differences with itineraries are analyzed. Subsequently, the methodology used consists of two distinct phases. Initially, a quantitative study is carried out in which data on the late medieval heritage are collected and subsequently, through the use of a GIS, an index of tourist potentiality is carried out and the creation of a tourist route in the province of Cadiz (Spain). In this way the results obtained justify the route designed and the choice of municipalities, based on their greater availability of tourism resources (accessibility, hospitality etc.) and cultural (historical assets

Evaluación de la producción de pintura a partir de los residuos de Poliestireno expandido utilizando un solvente amigable con el ambiente

Con la evaluación de la producción de pintura a partir de los residuos de poliestireno expandido (EPS) utilizando un solvente amigable con el ambiente, se pretende dar uso post industrial a los desechos de poliestireno expandido que cada vez se acumulan más en los rellenos sanitarios, lo que genera un descontento debido a su volumen -- Además de darle un trato más amigable a la fabricación de pintura buscando un solvente que no resulte tan tóxico para el trato humano y para el ambiente -- El desarrollo del proyecto se lleva a cabo planteando una metodología de investigación que sugiere inicialmente pruebas de caracterización al residuo de poliestireno expandido, que permiten saber características propias del material -- Luego de esto, se realiza un diseño de experimentos multifactorial con dos factores y tres niveles, donde se analiza el efecto de la temperatura en la fase de mezclado y la relación que tiene la concentración de poliestireno expandido como vehículo en la elaboración de pintura -- En el diseño se evalúan cuatro variables de respuesta: adhesión, viscosidad, tiempo de secado y poder de cubrimiento, comparando luego estas mismas propiedades con las realizadas en una pintura comercial -- El estudio muestra un alto grado de influencia de la concentración de poliestireno expandido sobre las propiedades de la pintura obtenida, mejorando cada una de ellas a medida que se aumenta la cantidad de poliestireno expandido -- Se observó también que la temperatura influyó en el tiempo de secado, es decir a mayor temperatura en la fase de mezclado mayor fue el tiempo que se demoró la pintura en secar -- Por último, al comparar el producto obtenido con uno comercial, se encuentra que el producto obtenido tiene menor tiempo de secado, una adhesión similar, posee mayor poder de cobertura y una viscosidad más alta, además de ser una pintura no toxica y amigable con el ambient

Searches and the Misunderstood History of Suspicion and Probable Cause: Part One

This article, the first of a two-part series, argues that during the Framers’ era many if not most judges believed they could issue search warrants without independently assessing the adequacy of probable cause, and that this view persisted even after the Fourth Amendment became effective. This argument challenges the leading originalist account of the Fourth Amendment, which Professor Thomas Davies published in the Michigan Law Review in 1999. The focus in this first article is upon an analysis of the common law and how it reflected the Fourth Amendment’s restrictions. Learned treatises in particular, and to a lesser extent a few case decisions, had articulated a judicial duty to monitor probable cause. But it is a mistake to presume that the law was necessarily implemented in accordance with this elite guidance. This is because justices of the peace, the non-elite judges who actually issued search warrants, had reason to believe that judicial sentryship of probable cause was often optional. Evidence supporting this conclusion can be found in treatises, as well as manuals for justices of the peace, legal forms, civil search statutes, and case law, as well as the extended development of probable cause sentryship jurisprudence, which continued well past 1950. American justice of the peace manuals and legal forms play a particularly important role in this story, as it is likely they had a profound influence on search warrant procedure given the laxity in legal education and judicial training, as well as the limitations on legal research, during the Framers’ era. This article challenges our current understanding of the Fourth Amendment, including the relationship between its Reasonableness and Warrant clauses, raises questions about originalism, and contributes to our understanding of the sources and methods used by judges during the Framers’ era, as well as by historians today. These topics will continue to be explored in the second part of this series, which will focus upon statutory law from the Framers’ era

Searches & the Misunderstood History of Suspicion & Probable Cause: Part One

This article, the first of a two-part series, argues that during the Framers’ era many if not most judges believed they could issue search warrants without independently assessing the adequacy of probable cause, and that this view persisted even after the Fourth Amendment became effective. This argument challenges the leading originalist account of the Fourth Amendment, which Professor Thomas Davies published in the Michigan Law Review in 1999. The focus in this first article is upon an analysis of the common law and how it reflected the Fourth Amendment’s restrictions. Learned treatises in particular, and to a lesser extent a few case decisions, had articulated a judicial duty to monitor probable cause. But it is a mistake to presume that the law was necessarily implemented in accordance with this elite guidance. This is because justices of the peace, the non-elite judges who actually issued search warrants, had reason to believe that judicial sentryship of probable cause was often optional. Evidence supporting this conclusion can be found in treatises, as well as manuals for justices of the peace, legal forms, civil search statutes, and case law, as well as the extended development of probable cause sentryship jurisprudence, which continued well past 1950. American justice of the peace manuals and legal forms play a particularly important role in this story, as it is likely they had a profound influence on search warrant procedure given the laxity in legal education and judicial training, as well as the limitations on legal research, during the Framers’ era. This article challenges our current understanding of the Fourth Amendment, including the relationship between its Reasonableness and Warrant clauses, raises questions about originalism, and contributes to our understanding of the sources and methods used by judges during the Framers’ era, as well as by historians today. These topics will continue to be explored in the second part of this series, which will focus upon statutory law from the Framers’ era