Caratterizzazione idrologica della Stazione Dosso di santa Croce

Lo studio di caratterizzazione idrologica è stato condotto nella zona del Dosso di Santa Croce (Golfo di trieste) dove sono presenti strutture artificilai sommerse, utilizzate per l'analisi del popolamento macrofitobentonico. in questa zona la profondità del fondale è di 12 m. I dati relativi alle caratteristiche chimico fisiche dell'acqua sno stati acquisiti tramite una sonda multiparametrica (CTD Idronaut - Ocean seven 316 Probe), uno spettrofotometro, radiometri selettivi, radiometri PAR. La strumentazione ha permesso di rilevare dati di: temperatura, conducibilità (salinità), ossigeno disciolto, pH, torbidità, clorofilla, coefficiente di attenuazione lungo la colonna d'acqua, irradianza discendente, radianza ascendente, irradianza sferica. I dati sono stati acquisiti con cadenza mensile (seconda decade del mese) a partire dal dicembre 2004. L'analisi dei dati ha mostrato un'elevata variabilità dei parametri che sembra essere influenzata in maniera preponderante dalle condizioni di irraggiamento esterno. Nella zona del Dosso, vista la ridotta profondità del fondale, al fondo è sempre rilevabile un'elevata quantità di energia, disponibile per l'attecchimento e la crescita della componente vegetale

Phytobenthonic Population

Con il presente studio si vuole fornire un'analisi della composizione della componente vegetale sui substrati artificilai (piramidi di cemento) presenti sul fondale della zona del Dosso di Santa Croce (Golfo di Trieste – Alto Adriatico). Le osservazioni sono state condotte durante immersioni in ARA a partire da luglio 2004, con cadenza stagionale. I campioni sono stati acquisiti tramite erborizzazioni e grattaggi di aree significative su tutte le piramidi. Sono state analizzate la diversità biologica e la composizione dello strato di alghe calcaree. L'importanza dell'analisi vegetale non riguarda solo la caratterizzazione biologica dell'ambiente in esame, ma fornisce preziose indicazioni sullo stato di alterazione\equilibrio ambientale. Le alghe sono organismi sessili e pertanto in grado di "registrare" e riflettere, attraverso lo sviluppo e la composizione dei popolamenti, le caratteristiche ecologiche dell'area. Nel caso delle alghe calcaree incrostanti, appartenenti in particolare all'ordine delle Corallinales, il lungo ciclo di vita e la struttura del tallo ne fanno dei preziosi sensori-indicatori biologici. L'analisi ha permesso di rilevare 72 taxa algali di cui una componente preponderante costituita da Rhodophyceae (75% - 54 taxa), seguita da quella delle Phaeophyceae (14% - 10 taxa) e infine quella delle Chlorophyceae (11% - 8 taxa). I tre gruppi mostrano fluttuazioni stagionali che si riflettono in particolare in un picco per le Rhodophyceae nel mese di novembre, un incremento delle Phaeophyceae da febbraio a maggio e un picco in febbraio registrato per le Chlorophyceae. E' stata elaborata la lista floristica delle specie in cui vengono riportati anche l'elemento fitogeografico di appartenenza e l'ecologia della specie

Tratamiento de la problemática de aguas en Santa Fe

Cuando el Estado percibe los problemas vinculados al agua y al ambiente, ya está generando ámbitos para atenderlos desde su estructura como tal. Las normas emanadas de él, son el resultado en primer lugar, de la formulación del problema y la posterior ejecución de las políticas hídricas a través de su aplicación. El tema ambiental se incorpora a la Constitución Nacional con la reforma del año 1994, que en su artículo 41 consagra la denominada “cláusula ambiental”, distribuyendo las competencias legislativas en la materia (entiéndase las regulaciones provinciales y municipales específicas),las que en definitiva, se ajustarán a los presupuestos mínimos emanados de la Carta Magna. Provincias como San Luis, Salta, Córdoba, Jujuy, Formosa, Tierra del Fuego, Santa Cruz, Catamarca, San Juan, Mendoza, Chubut, han incluido en sus Constituciones el tema hídrico.Facultad de Ciencias Jurídicas y Sociale

Review of the Commission Decision 2010/477/EU concerning MSFD criteria for assessing Good Environmental Status, Descriptor 7

This report represents the result of the scientific and technical review of Commission Decision 2010/477/EU in relation to Descriptor 7. The review has been carried out by the EC JRC together with experts nominated by EU Member States, and has considered contributions from the GES Working Group in accordance with the roadmap set out in the MSFD implementation strategy (agreed on at the 11th CIS MSCG meeting). The report is one of a series of reports (review manuals) including Descriptor 1, 2, 5, 7, 8, 9, 10 that conclude phase 1 of the review process and, as agreed within the MSFD Common Implementation Strategy, are the basis for review phase 2, towards an eventual revision of the Commission Decision 2010/477/EU. The report presents the state of the technical discussions as of 30 April 2015 (document version 7.0: ComDecRev_D7_V7.0_FINAL.docx), as some discussions are ongoing, it does not contain agreed conclusions on all issues. The document does not represent an official, formal position of any of the Member States and the views expressed in the document are not to be taken as representing the views of the European Commission.JRC.H.1-Water Resource

Management model of the COVID-19 pandemic in socially vulnerable communities

Introduction Several public policies were proposed to reduce the negative impact of COVID-19 pandemic. This work aimed to determine how a management model is capable of strengthening the community network, providing support, healthcare and channelling public government's aid during COVID-19 pandemic situation. Methods It is an intervention study that tested the effectiveness of a management model for both healthcare and essential goods access in a socially vulnerable neighbourhood called 'Puente de Fierro' in La Plata the capital of Buenos Aires State, Argentina, during the COVID-19 pandemic. Altos de San Lorenzo suburb area was considered as control group. Variables studied were: level of contagion and death due to the SARS-CoV-2 virus; access to food, medicine and other goods; strengthening of community networks; performance of government programmes in territory. Results A new management paradigm was tested by moving essential goods towards the people, instead of making the people move to obtain those benefits. Accessibility to 'Food Bag' and 'Food Bank' were significantly increased, a reduction of contagion level and mortality rate for COVID-19 was achieved (2.3/100 000 vs 3.6/100 000 inhabitants in control area; and 'fatality rate' was 2.8% vs 3.6%, respectively). Support was also provided to installed in local stores virtual payment devices for food cards acceptance. Conclusion The management model based in healthcare and goods and service supplies during COVID-19 pandemic reduced the negative impact of disease and its measures of isolation in socially vulnerable neighbourhoods.Fil: Marin, Gustavo Horacio. Universidad Nacional de La Plata; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas; ArgentinaFil: Fonseca, Jenny. Universidad Nacional de La Plata; ArgentinaFil: Etchegoyen, Graciela Susana. Universidad Nacional de La Plata; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas; ArgentinaFil: Marin, Lupe. Universidad Nacional de La Plata; ArgentinaFil: Kain Aramburu, Itziar. Universidad Nacional de La Plata; ArgentinaFil: Rodriguez, Rocio. Universidad Nacional de La Plata; ArgentinaFil: Vetere, Pablo. Universidad Nacional de La Plata; ArgentinaFil: Mateo, Graciela. Universidad Nacional de Quilmes; ArgentinaFil: Bourgeois, Marcelo Javier. Universidad Nacional de La Plata; ArgentinaFil: Campuzano Castro, Federico. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - La Plata. Instituto de Astrofísica La Plata. Universidad Nacional de La Plata. Facultad de Ciencias Astronómicas y Geofísicas. Instituto de Astrofísica La Plata; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas. Oficina de Coordinación Administrativa Parque Centenario. Instituto de Tecnología en Detección y Astropartículas. Comisión Nacional de Energía Atómica. Instituto de Tecnología en Detección y Astropartículas. Universidad Nacional de San Martín. Instituto de Tecnología en Detección y Astropartículas; ArgentinaFil: Babbini, Ignacio. Universidad Nacional de La Plata; ArgentinaFil: Marin, Gina. Universidad Nacional de La Plata; ArgentinaFil: Canevari, Tomás. Universidad Nacional de La Plata; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas; ArgentinaFil: Bozzano, Horacio Rodolfo. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina. Universidad Nacional de La Plata; Argentin

Thermal sensitivity of the crab Neosarmatium africanum in tropical and temperate mangroves on the east coast of Africa

Mangrove forests are amongst the tropical marine ecosystems most severely affected by rapid environmental change, and the activities of key associated macrobenthic species contribute to their ecological resilience. Along the east coast of Africa, the amphibious sesarmid crab Neosarmatium africanum (=meinerti) plays a pivotal role in mangrove ecosystem functioning through carbon cycling and sediment bioturbation. In the face of rapid climate change, identifying the sensitivity and vulnerability to global warming of this species is of increasing importance. Based on a latitudinal comparison, we measured the thermal sensitivity of a tropical and a temperate population of N. africanum, testing specimens at the centre and southern limit of its distribution, respectively. We measured metabolic oxygen consumption and haemolymph dissolved oxygen content during air and water breathing within a temperature range that matched the natural environmental conditions. The results indicate different thermal sensitivities in the physiological responses of N. africanum from tropical and temperate populations, especially during air breathing. The differences observed in the thermal physiology between the two populations suggest that the effect of global warming on this important mangrove species may be different under different climate regimes

Fortalecimiento de Redes de Autocuidado mediante Investigación-Acción-Participativa en Barrios Populares Argentinos durante la Pandemia por COVID-19

The IP-763 Project “Actions, protocols and devices in Popular Neighborhoods of Argentina: Prevention, control and monitoring of COVID-19. Puente de Fierro neighborhood case (La Plata, Buenos Aires)” aims to strengthen a self-care network through the application of methods and techniques typical of Participatory-Action-Research processes (hereinafter IAP) together with the inhabitants of Puente de Fierro. In this way, it aims to generate useful contributions for the support in the conception and execution of inclusive public policies that reduce vulnerabilities at the cognitive, social, environmental, economic and political levels; run an epidemiological surveillance model; and develop communication strategies that allow in practice a dialogue between project actions and the scientific perspective adopted. Five years of uninterrupted work from UNLP and CONICET based on a Participatory Scientific Agenda with a Consolidated Permanent Work Table in the Puente de Fierro neighborhood, allowed in the short term to obtain the first advances and results that are exposed in this article.El Proyecto IP-763 “Acciones, protocolos y dispositivos en Barrios Populares de Argentina: Prevención, control y monitoreo del COVID-19. Caso barrio Puente de Fierro (La Plata, Buenos Aires)” se propone fortalecer una red de autocuidado mediante la aplicación de métodos y técnicas propias de procesos de Investigación-Acción-Participativa (en adelante IAP) junto a los habitantes de Puente de Fierro. De este modo, apunta a generar aportes útiles para el acompañamiento en la concepción y ejecución de políticas públicas inclusivas que reduzcan vulnerabilidades en los planos cognitivo, social, ambiental, económico y político; ejecutar un modelo de vigilancia epidemiológica; y desarrollar estrategias de comunicación que permitan en la práctica un diálogo entre acciones del proyecto y la perspectiva científica adoptada. Cinco años de trabajo ininterrumpido desde la UNLP y el CONICET en base a una Agenda Científica Participativa con una Mesa de Trabajo Permanente consolidada en el barrio Puente de Fierro permitieron en el corto plazo obtener los primeros avances y resultados que se exponen en el presente artículo

Imepitoin Shows Benzodiazepine-Like Effects in Models of Anxiety

Imepitoin is a low affinity partial agonist for the benzodiazepine binding site of γ-aminobutyric acid (GABAA) receptors, and is currently used as an antiepileptic in dogs. Here we tested imepitoin for anxiolytic properties. In an in vitro model, imepitoin was capable of preventing the effect of corticotrophin releasing factor (CRF) on locus coeruleus neurons without suppressing the basal activity of these cells, an activity which is suggestive for an anti-stress effect of imepitoin. In addition, we applied a battery of standard rodent preclinical tests for anxiety behavior including elevated plus mazes in mice and rats, light-dark-box in mice and rats, social interaction test in rats, or the Vogel conflict test in rats. In all models, the observed profile of imepitoin appeared similar to benzodiazepines and typical for anxiolytic drugs. We also observed anxiolytic activity in dogs in a provoked open field sound-induced fear model, where reactions to noises were elicited by a sound recording of thunderstorms. Imepitoin caused an increase in locomotion measured in distance traveled and an ameliorating effect on cortisol levels in response to thunderstorm noises. For comparison, dexmedetomidine caused a decrease in locomotion and had no effect on cortisol. In all animal models the doses needed for an anxiolytic effect were not associated with sedation. In rodents, there was at least a factor of 10 between anxiolytic doses and doses with mild signs of sedation. In summary, imepitoin showed similar anxiolytic activities as benzodiazepines but without producing the known adverse reactions of benzodiazepines such as sedation

European Red List of Habitats Part 1. Marine habitats

The European Red List of Habitats provides an overview of the risk of collapse (degree of endangerment) of marine, terrestrial and freshwater habitats in the European Union (EU28) and adjacent regions (EU28+), based on a consistent set of categories and criteria, and detailed data and expert knowledge from involved countries1. A total of 257 benthic marine habitat types were assessed. In total, 19% (EU28) and 18% (EU28+) of the evaluated habitats were assessed as threatened in categories Critically Endangered, Endangered and Vulnerable. An additional 12% were Near Threatened in the EU28 and 11% in the EU28+. These figures are approximately doubled if Data Deficient habitats are excluded. The percentage of threatened habitat types differs across the regional seas. The highest proportion of threatened habitats in the EU28 was found in the Mediterranean Sea (32%), followed by the North-East Atlantic (23%), the Black Sea (13%) and then the Baltic Sea (8%). There was a similar pattern in the EU28+. The most frequently cited pressures and threats were similar across the four regional seas: pollution (eutrophication), biological resource use other than agriculture or forestry (mainly fishing but also aquaculture), natural system modifications (e.g. dredging and sea defence works), urbanisation and climate change. Even for habitats where the assessment outcome was Data Deficient, the Red List assessment process has resulted in the compilation of a substantial body of useful information to support the conservation of marine habitats