Search results for "FOUNDATION"
showing 10 items of 256 documents
Effects of structural complexity on epifaunal assemblages associated with two intertidal Mediterranean seaweeds
2023
Brown foundation seaweeds are key elements increasing substrate heterogeneity and shaping the biodiversity in rocky coastal ecosystems. They are, however, vulnerable species that are declining due to multiple anthropogenic and climate change stressors, leading to a shift to less structural complex habitats. We investigate the role of structural attributes of two intertidal macroalgae, Ericaria amentacea and Laurencia obtusa, in shaping the abundance and diversity of their associated epifaunal assemblages. For this aim, we measured seaweeds’ biomass, thallus volume and length (used here as proxy of substrate complexity), and explored which seaweeds’ substrate attribute explained better varia…
Simplified Formulation of Solution for Beams on Winkler Foundation allowing Discontinuities due to Loads and Constraints
2009
The paper discusses material for a course in Structural Mechanics addressed to second-Year Civil Engineering students. The response of beams on a Winkler foundation characterized by discontinuities in both the displacements (deflections and/or slopes) and forces (internal forces and/or loads) is studied. In particular, a simplified formulation for the solution of the discontinuous differential equation governing this problem is given. In some cases, the formulation is able to give the exact solution in a closed form. This is made possible through the use of the generalized functions, such as the well-known Unit Step Function and the Dirac delta function. The cases of discontinuities due to …
ANALISI DEL COMPORTAMENTO AD INDENTAZIONE IN TRAVI SANDWICH IN COMPOSITO CON ANIMA IN SCHIUMA POLIMERICA
2010
Nel presente lavoro si propone una estensione dei modelli basati sulla teoria delle travi vincolate su una fondazione cedevole di tipo Winkler per lo studio del comportamento ad indentazione di travi sandwich in schiuma polimerica sollecitate da carichi concentrati. L’approccio proposto è in grado di considerare schiume polimeriche aventi comportamento a compressione di tipo non lineare. Sono derivate soluzioni analitiche in forma chiusa della curva di indentazione per anime in schiuma polimerica il cui comportamento a compressione è approssimabile con un andamento bi-lineare. In tal modo è possibile considerare comportamenti di softening o hardening della schiuma nel tratto post-elastico. …
ALGUNAS REFLEXIONES SOBRE LA ARQUITECTURA DE LOS DERECHOS. ¿SON LOS LÍMITES INTERNOS DIFERENTES DE LOS EXTERNOS?
2022
Por lo general, cada derecho tiene como objetivo la protección de un interés (o un conjunto de intereses agrupados) de un solo sujeto. Sin embargo, es posible imaginar un derecho que se reconoce para proteger, al mismo tiempo, dos o más intereses distintos de dos o más sujetos distintos. Este capítulo se enfoca en los límites internos de los derechos que pueden derivar del conflicto que pueda suscitarse entre los dos o más intereses protegidos para de un derecho. Analizando tres derechos –los derechos parentales, el derecho a un medioambiente saludable y la libertad de expresión– el capítulo se pregunta si tales límites internos son una fachada cuyo comportamiento es equivalente al de los l…
L'Islam di fronte e attraverso
2020
Il volume raccogliei testi delle lezioni introduttive di Cultura islamica tenutesi a Mazara del Vallo nel 2019 con l'intento di proporre al lettore degli argomenti di livello scientifico ma di carattere divulgativo. La cornice è quella di un contesto che desidera far conoscere e tenere vivo un antico legame con gli abitanti giunti da una sponda che non si vuole definire "opposta", ma piuttosto transfrontaliera e che quotidianamente ci attraversa e con noi si interseca. The volume collects the texts of the introductory lessons of Islamic culture held in Mazara del Vallo in 2019 with the aim of proposing to the reader topics of a scientific level but informative. The frame is that of a contex…
Sulle origini del priorato cluniacense di Santa Maria delle Giummare di Sciacca (XII secolo)
2019
Il priorato di Santa Maria delle Giummare di Sciacca fu fondato, secondo la tradizione, da Giuditta, figlia di Ruggero I e si attestò come unico esemplare cluniacense in Sicilia tra i numerosi priorati creati tra la seconda metà dell’XI secolo e gli inizi del XII in Italia. Nonostante la particolarità, il monastero è stato poco studiato e diversi interrogativi attendono ancora una soluzione. Il saggio analizza le questioni aperte legate alle origini del monastero e, quindi, alla data e al documento di fondazione, alla fondatrice e alla scelta dell’ordine cluniacense, restringendo l’arco cronologico in cui poté realizzarsi la fondazione e ipotizzandone le ragioni. The priory of Santa Maria d…
Understanding the Microfoundations of Entrepreneurial Ecosystems: Toward a Value-Based Method and Theory
2023
Despite the progress made by scholars, empirically investigating entrepreneurial ecosystems (EEs) remains problematic because of the inherent complexities and nonlinearities of interactions among EE actors. The research to date has shown a tendency to focus on macrolevel ecosystem dynamics while neglecting the microfoundations of EEs. We contend that this negligence is due to a lack of appropriate methodologies that can capture EE microfoundations through a systemic value-based perspective. To fill this gap, in this article, we propose a novel methodological approach, the value system method, which enables framing EEs through critical causal interdependences between key actors’ business mod…
Inside-out Internal and External Limits to Rights: Does it matter?
2019
Literature is rich on whether and how rights are limited by external considerations, such as other rights or particularly important general interests. This article concentrates on what could be a different type of limit of rights: internal limits stemming from the very foundations of a right. Its aim is to understand whether these hypothetically different internal limits actually collapse on the idea of internal limits of coherence theories; or whether they are equivalent, in terms of effects, to external limits to rights. In order to show the origin of the troubling with internal limits, the article begins with a brief introduction of biocultural rights of indigenous peoples and local com…
The Challenges and Opportunities of Human Technology
2005
Technology is for human use. It is designed to satisfy some human needs and to aid people in reaching their goals. Technology, therefore, is a part of human activities and, for this reason alone, it should always be considered within the context of human life, the human experience. This basic credo forms the foundation for the concept of human technology. Instead of seeing technology as a construction following the laws of nature, the challenge of human technology is to explore and understand how humanist and social research can contribute to the conceptualization and implementation of technology.
The Role of Nature in the Secularization of Criminal Law in Europe (17th–19th Centuries)
2020
Some authors have argued that enlightenment authors endorsed a social contract that was not compatible with the existence of laws of nature or a moral foundation for criminal law, while nineteenth-century liberal criminal lawyers founded criminal law upon a natural law theory, based on divine commands. This chapter demonstrates on the contrary that enlightenment authors did not necessarily make a sharp distinction between morality and criminal law, nor did 19th-century criminal lawyers adopted a conception of criminal law that was too heavily dependent on morality, as it was defended by medieval and early-modern-age scholars. The traditional dichotomy between enlightened thinkers and tradit…