Search results for "dams"

Derecho y conciencia en Antígona: Una respuesta atemporal a los conflictos de familia

2018

El presente artículo aborda la importancia de la familia en Antígona, de Sófocles. Ante el Decreto de Creonte, por el que se prohibía, bajo pena de muerte, enterrar y llorar a Polinices, su hermana ?Antígona ? no duda en afirmar que por encima de las leyes del Estado está la ley de los dioses y la ley que dicta su conciencia, la que le exige anteponer los lazos familiares al orden público. Un acto de desobediencia civil que le conducirá a muerte.

Relapse Rate in Survivors of Acute Autoimmune Thrombotic Thrombocytopenic Purpura Treated with or without Rituximab.

2018

Background Autoimmune thrombotic thrombocytopenic purpura (iTTP) is caused by autoantibody-mediated severe a disintegrin and metalloprotease with thrombospondin type 1 repeats, member 13 (ADAMTS13) deficiency leading to micro-angiopathic haemolytic anaemia (MAHA) and thrombocytopenia with organ damage. Patients survive with plasma exchange (PEX), fresh frozen plasma replacement and corticosteroid treatment. Anti-CD20 monoclonal antibody rituximab is increasingly used in patients resistant to conventional PEX or relapsing after an acute bout. Objective This retrospective observational study focused on the relapse rate and possible influencing factors including treatment with rituximab first…

Recensione di GALLIANI C., SCHERINI R. & PIGLIA A., 2017. Dragonflies and damselflies of Europe. A scientific approach to the identification of Europ…

2018

Recensione di GAUCI C., 2018. Dragonflies and damselflies of the Maltese islands. Birdlife Malta, Malta: 1-150. € 20

2018

Influence of alternative mating tactics on predation risk in the damselfly Calopteryx virgo

2009

Alternative mating tactics are a widespread feature in insects. A typical form of alternative mating behaviour is being a sneaker in the vicinity of a territorial male. Such nonterritorial males have lower mating success, but they may benefit from lower energetic costs and decreased predation risk. In this study, we examined whether nonterritorial male damselflies Calopteryx virgo (L., 1758) are subject to lower predation risk than territorial males. To distinguish predation from other sources of mortality, we used models. The experiment consisted of dried male damselflies settled into the typical perching positions of territorial and nonterritorial males. Also the spatiotemporal patterns …

Looking for Feminist Pragmatist Roots of Degrowth Ideas: Jane Addams, Charlotte Perkins Gilman, Caroline Bartlett Crane

2022

The aim of the paper is a search of feminist pragmatist roots of degrowth ideas. The starting point is the question of whether in views of the members of the Progressive Movement the idea of progress has always implied the economic (and industrial) growth. Searching for counter-examples leads me to ideas of ecofeminism and feminist critics of capitalism in the previous turn of the centuries. The ideas of ecofeminism were developed by women associated with the Department of Sociology at the University of Chicago and the social settlement Hull House. They observed a link between the exploitation of subordinate members of a society and the degradation of nature in Western cultural values. The …

The emergence of Vibrio pathogens in Europe : ecology, evolution, and pathogenesis (Paris, 11-12th March 2015)

2015

Global change has caused a worldwide increase in reports of Vibrio-associated diseases with ecosystem-wide impacts on humans and marine animals. In Europe, higher prevalence of human infections followed regional climatic trends with outbreaks occurring during episodes of unusually warm weather. Similar patterns were also observed in Vibrio-associated diseases affecting marine organisms such as fish, bivalves and corals. Basic knowledge is still lacking on the ecology and evolutionary biology of these bacteria as well as on their virulence mechanisms. Current limitations in experimental systems to study infection and the lack of diagnostic tools still prevent a better understanding of Vibrio…

High maternal species density mediates unidirectional heterospecific matings inCalopteryxdamselflies

2012

Hybridization is a well-known phenomenon, but there are still relatively few studies addressing the question of reproductive isolation between related sympatric animal species with largely overlapping ranges. Population density, relative abundance, and operational sex ratio (OSR) are among the factors known to have an influence on the frequency of heterospecific matings in sympatric populations. Here we had two aims. First, we used microsatellite markers and field observations to study the frequency of hybrids, and backcrosses, and the rate of heterospecific matings between two sympatric damselfly species Calopteryx splendens (Harris, 1780) and Calopteryx virgo (Linne, 1758). Second, we inv…

Recreational fish feeding affects coastal fish behavior and increases frequency of predation on damselfish (Chromis chromis) nests

2006

Wildlife feeding has become an integral part of the range of activities offered to protected area visitors. In marine protected areas (MPAs), fish feeding may cause changes in the behavior, and thus the density and distribution, of coastal fish species. We evaluated spatial variability in human-positive fish behavior around the Ustica Island MPA (Italy) and the potential indirect effects of behavioral change on other species. Two mensurative experiments demonstrated that ca. 1/3 of the species present in fish-feeding areas exhibited human-positive behavior, losing instinctive fear in the presence of humans and encircling people in the water even when food was not provided. A manipulative ex…

Co-evolution between ectoparasites and their insect hosts: a simulation study of a damselfly-water mite interaction

2001

Summary 1. A simulation model investigating the co-evolution of water mites infesting their aquatic insect hosts during emergence is presented. The model is based on field and experimental studies of the ectoparasitic water mite Arrenurus cuspidator and the damselfly Coenagrion puella. 2. Three scenarios were studied: (1) Only the host was allowed to evolve timing of emergence, while the timing of the parasites' infestation opportunity was held constant. (2) Both host and parasite were allowed to evolve. (3) Only the parasite's timing was allowed to evolve, while the host was constrained completely. 3. In the first two scenarios, parasite abundances decreased in the course of evolution and …