197,310 research outputs found

    Coastal wetlands: A Synthesis

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    This book and this synthesis address the pressing need for better management of coastal wetlands worldwide because these wetlands are disappearing at an alarming rate; in some countries the loss is 70%–80% in the last 50 years. Managing requires understanding. Although our understanding of the functioning of coastal wetland ecosystems has grown rapidly over the past decade, still much remains to be learned and understood. We have gained insight into the roles of geomorphic processes, hydrologic dynamics, biotic feedback, and disturbance agents in creating and molding a variety of coastal wetland ecosystems across climatic gradients. The variety is expressed not so much in the more obvious differences in vegetation cover, but rather how physical processes both facilitate and constrain a diversity of plant and animal communities. At one level, coastal wetlands are the product of tidal forces and freshwater inputs at the margin of continents. At another level, the plants control the water currents in the tidal creeks draining the wetlands by generating a tidal current asymmetry that controls sediment transport and results in a deep tidal creek surrounded by shallow vegetated wetlands. The vegetation also influences the physics of water and sediment through several other processes including biofilms, bioturbation of sediments, the buffeting of currents and waves, organic enrichment of sediments, and the closing of nutrient cycles. Few ecosystems provide us with so many clear examples of such feedback controls. What we do understand about the structure and functioning of coastal wetlands should provide the theoretical underpinnings for effective management in protecting them for their many contributions to ecosystem goods and services. What we do not understand should compel us to focus our attention and energies toward seeking optimal solutions to some of the most perplexing and urgent problems facing natural resource management.Fil: Hopkinson, Charles S.. University of Georgia; Estados UnidosFil: Wolanski, Eric. James Cook University; Australia. Australian Institute of Marine Science; AustraliaFil: Cahoon, Donald R.. Patuxent Wildlife Research Center; Estados UnidosFil: Perillo, Gerardo Miguel E.. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Bahía Blanca. Instituto Argentino de Oceanografía. Universidad Nacional del Sur. Instituto Argentino de Oceanografía; ArgentinaFil: Brinson, Mark M.. No especifíca;Fil: Hopkinson, Charles S.. University of Georgia; Estados Unido

    M. Cappelletti, J.H. Merryman et J.M. Perillo, The Italian Legal System, An Introduction

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    M. Cappelletti, J.H. Merryman et J.M. Perillo, The Italian Legal System, An Introduction. In: Revue internationale de droit comparé. Vol. 19 N°3, Juillet-septembre 1967. p. 723

    M. Cappelletti, J.H. Merryman et J.M. Perillo, The Italian Legal System, An Introduction

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    M. Cappelletti, J.H. Merryman et J.M. Perillo, The Italian Legal System, An Introduction. In: Revue internationale de droit comparé. Vol. 19 N°3, Juillet-septembre 1967. p. 723

    In Search of Protection: Unaccompanied Minors in Italy

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    This paper examines the issue of unaccompanied minors arriving in Italy and how Italy has responded to their need for protection. It contains ¡ve complementary sections. Section 1, authored by Pietro Demurtas, provides a statistical overview of unaccompanied minors in Italy between 2014 and 2017. In particular, it discusses unaccompanied minors who request political asylum, those in government reception facilities who do not, and those who have left reception centers without seeking asylum and have become "untraceable." The second section by Mattia Vitiello addresses why unaccompanied minors leave their countries of origin and how they transit to Italy and elsewhere. This section highlights the role of families in the decision to migrate and the migration process. It distinguishes unaccompanied minors who largely seek to "escape from" particular conditions from other migrants who are in search of a better life for themselves and their families. The third section by Marco Accorinti covers Italian reception policies and policymaking challenges, with a particular focus on implementation of Italy's System for the Protection of Asylum Seekers and Refugees. The section argues for reception procedures and interventions that are tailored to the particular vulnerabilities and needs of unaccompanied minors. Section 4, authored by Aldo Skoda, c.s., offers a psychosocial analysis of the phenomenon of unaccompanied child migration. It describes strategies to build the competencies, sense of agency, and resilience of unaccompanied minors. The final section, authored by Carola Perillo, details the demands and requirements of acting in the "best interests" of unaccompanied minors. It ends by setting forth minimum principles of protection for unaccompanied minors, which should inform both the Global Compact on Migration and the Global Compact on Refugees

    Coastal Wetlands: A Synthesis

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    What are coastal wetland ecosystems, what are their limits of distribution, and where dothey exist in the overall coastal landscape? There are several general definitions for wetlands,but the Ramsar definition is likely the most broadly encompassing (http://www.ramsar.org/), whereas others are more focused definitions tailored to country-specific protectionand management policies (Mitsch and Gosselink, 2006). We offer a very general approachrather than a precise definition: coastal wetlands are ecosystems that are found within anelevation gradient that ranges between subtidal depths where light penetrates to supportphotosynthesis of benthic plants to the landward edge where the sea passes its hydrologicinfluence to groundwater and atmospheric processes. At the seaward margin, biofilms,benthic algae, and seagrasses are representative biotic components. At the landward margin,vegetation boundaries range from those located on groundwater seeps or fens in humidclimates to relatively barren salt flats in arid climates.Fil: Hopkinson, Charles S.. University of Georgia; Estados UnidosFil: Wolanski, Eric. James Cook University; Australia. Australian Institute of Marine Science; AustraliaFil: Brinson, Mark M.. Brinson East Carolina University; Estados UnidosFil: Cahoon, Donald R.. United States Geological Survey; Estados UnidosFil: Perillo, Gerardo Miguel E.. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Bahía Blanca. Instituto Argentino de Oceanografía. Universidad Nacional del Sur. Instituto Argentino de Oceanografía; Argentina. Universidad Nacional del Sur. Departamento de Geología; Argentin

    A new langmuir-schaefer-based method developed for catalytic studies of acetylcholinesterase in planar fiolms of erythrocyte membranes

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    Fil: Felsztyna, I. Consejo Nacional de Investigaciones Científicas y Técnicas. Instituto de Investigaciones Biológicas y Tecnológicas; Argentina.Fil: Felsztyna, I. Universidad Nacional de Córdoba. Facultad de Ciencias Exactas, Físicas y Naturales. Departamento de Química. Cátedra de Química Biológica; Argentina.Fil: Perillo, M. A. Consejo Nacional de Investigaciones Científicas y Técnicas. Instituto de Investigaciones Biológicas y Tecnológicas; Argentina.Fil: Perillo, M. A. Universidad Nacional de Córdoba. Facultad de Ciencias Exactas, Físicas y Naturales. Departamento de Química. Cátedra de Química Biológica; Argentina.Fil: Clop, E. M. Consejo Nacional de Investigaciones Científicas y Técnicas. Instituto de Investigaciones Biológicas y Tecnológicas; Argentina.Fil: Clop, E. M. Universidad Nacional de Córdoba. Facultad de Ciencias Exactas, Físicas y Naturales. Departamento de Química. Cátedra de Química Biológica; Argentina.Previously we reported that the catalytic activity of bovine erythrocyte acetylcholinesterase (BEA) located in Langmuir-Blodgett films (LB) of bovine erythrocyte membranes (BEM), LBBEA, depended on the curvature and packing of the molecular environment. Moreover, the specific activity of LBBEA was much lower than that of BEA in suspensions of BEM vesicles (SBEA). So, the present work was aimed at maximizing the specific activity of BEA recovered from the transfer of a Langmuir film (LF) from the air-aqueous interface to alkylated solid surfaces and improving the precision of the enzymatic assays.Fil: Felsztyna, I. Consejo Nacional de Investigaciones Científicas y Técnicas. Instituto de Investigaciones Biológicas y Tecnológicas; Argentina.Fil: Felsztyna, I. Universidad Nacional de Córdoba. Facultad de Ciencias Exactas, Físicas y Naturales. Departamento de Química. Cátedra de Química Biológica; Argentina.Fil: Perillo, M. A. Consejo Nacional de Investigaciones Científicas y Técnicas. Instituto de Investigaciones Biológicas y Tecnológicas; Argentina.Fil: Perillo, M. A. Universidad Nacional de Córdoba. Facultad de Ciencias Exactas, Físicas y Naturales. Departamento de Química. Cátedra de Química Biológica; Argentina.Fil: Clop, E. M. Consejo Nacional de Investigaciones Científicas y Técnicas. Instituto de Investigaciones Biológicas y Tecnológicas; Argentina.Fil: Clop, E. M. Universidad Nacional de Córdoba. Facultad de Ciencias Exactas, Físicas y Naturales. Departamento de Química. Cátedra de Química Biológica; Argentina.Biofísic

    The potential economic sustainability and social impact offered by biosimilar drugs in the light of a managerial Systems and Service view

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    This work moves from evidence of a pharmacoeconomic exploratory study of the case experienced at the Potenza Local Health Authority in Italy about a strategy for pharmaceutical expenditure containment based on the ‘switch’ from the so-called ‘originators’ drugs to biosimilar ones adopted in recent years (Saviano et al., 2022) 3 . The study of the case highlights that, despite the various scientific evidence of the equal effectiveness and safety of biosimilar drugs compared to the originators, and the rigorous rules for the switch, there is still resistance to biosimilars by both doctors and patients that needs to be understood and addressed (Claus et al., 2017; Ho, 2021; Gasteiger & Petrie, 2022). The Authority adopted a governance strategy of stakeholder engagement based on a multi-actor sharing of choices and promotion programs that resulted decisive to get the expected consensus by doctors. This approach based on sharing information and decisions, however, would not be equally effective in getting the consent of the patients; there is, in fact, an irreducible information asymmetry that does not allow patients to access and understand the same kind of information. Hence, the acceptance of biosimilars by patients would only rely on a trusted relationship with the prescriber doctors. A different engagement strategy, indeed, should be adopted to overcome the possible resistance by patients to share the overall commitment to the sustainability of pharmaceutical care. This is where a managerial and marketing perspective can be effectively integrated into pharmacoeconomic analyses. This short premise, in fact, is aimed to highlight the importance of integrating interpretative contributions from different theoretical perspectives and research streams under the common general view of business administration studies. Hence, it is highly agreed on the need for a dialogue and an interdependent, transversal, and circular vision between the various disciplinary streams of business administration knowledge which, despite their specificities, receive inspiration from the unitary and still current matrix from which Italian scholars draw a common origin (https://aidea2023.it/)
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