Search results for "STING"

Schistosomiasis reaches Europe

2015

International audience; An outbreak of urogenital schistosomiasis has been detected in Europe, with patients affected in France,1,2 Germany,1,2 and Italy. The infection originated in Corsica, in a river north of Porto-Vecchio, a popular tourist destination (figure). The introduction of schistosomiasis is believed to be associated with infected people arriving from a region endemic for the exclusively African parasite, Schistosoma haematobium and disseminating parasite eggs through their urine into snail breeding sites along the river.

Infection of brown trout with Diphyllobothrium dendriticum procercoids.

1997

The aims of this experimental study were to develop a practical method of controlling the number of Diphyllobothrium dendriticum procercoids delivered to a fish host; to examine the effect of different procercoid doses (3, 7 and 15) on the plerocercoid level in fish; and to examine the potential mortality caused by plerocercoids. The experiment was terminated after 2 months. The prevalence of infection at the lowest dose level, 17.2%, was statistically significantly lower than at medium and high levels, 63.3% and 56.7%, respectively. The mean intensity increased slightly along with the dosage. The contribution of D. dendriticum to the death of a few fish could not be proved. It is concluded…

Bovine paramphistomosis in Galicia (Spain): Prevalence, intensity, aetiology and geospatial distribution of the infection

2013

12 páginas, 5 figuras, 4 tablas.

Prevalency of Nematode in Bali Cattle at Manokwari Regency

2015

This study was conducted from August to October 2006, a disease caused by worms digestive tract is one of the causes of the decline in beef production . The purpose of this study was to assess the number of infected cattle nematode, the nematode types and amount of each type of nematodes in Bali cattle in Manokwari. Based onobservations on the worm eggs, total of 23 individuals (44.23 %) of Bali cattle ( puppies and adults ) infected with nematodes. Most of the infected cow is a cow that as many as 16 puppies cattle (69.56 %), while the remaining 7 animals (30.44 %) is the mother cow. Types of nematodes that infect cattle puppies and adult cattle are Cooperiasp., Bunostomum sp., Mecistocirr…

Is Green Harvesting a Useful Instrument to solve Market Problems in the Wine Sector? Some Lessons from Sicily

2016

The green harvesting (GH) policy measure has been introduced in Italy starting from the 2009/2010 wine season, with the goal of preventing market crises by reducing the yield of a given parcel to zero. In the 2010-2012 period, almost 85% of the national expenditure and about 81% of European Union (EU) expenditure for this measure have been showered on Sicily. This paper, after examining the application of GH in this Region, explores the motivations of 300 vine growers of Western Sicily for taking part, or refusing to do so, in the GH measure. The survey shows the contrasting nature of the opinions that the implementation of GH has caused among the interviewed sample. In fact, on the one han…

Slow Crystallization Kinetics of Poly(vinyl alcohol) in Confined Environment during Cryotropic Gelation of Aqueous Solutions

2006

The gelation kinetics of aqueous solutions of poly(vinyl alcohol) (PVA) during freezing at −13 °C has been investigated with time-resolved small angle neutron scattering. Crystallization of PVA takes place inside an unfrozen liquid microphase that forms in the matrix of ice crystals and follows a first-order kinetics during the early stages and becomes very slow in the later stages with an apparent Avrami exponent lower than 1. Crystallization of PVA at low temperatures is responsible of formation of strong physical gels upon defrosting, provided that the concentration of PVA is higher than a critical value.

Mesoscopic and Microscopic Investigation on Poly(vinyl alcohol) Hydrogels in the Presence of Sodium Decylsulfate

2007

The structure of poly(vinyl alcohol) (PVA) hydrogels formed as a result of freeze/thaw treatments of aqueous solutions of the polymer (11 wt % PVA) in the freshly prepared state is analyzed through the combined use of small (SANS) and ultrasmall (USANS) angle neutron scattering techniques. The structure of these hydrogels may be described in terms of polymer rich regions, with dimensions of the order of 1-2 microm, dispersed in a water rich phase, forming two bicontinuous phases. The PVA chains in the polymer rich phase form a network where the cross-linking points are mainly crystalline aggregates of PVA having average dimensions of approximately 45 A. The structural organization of freeze…

Who can go back to work when the COVID-19 pandemic remits?

2020

AbstractThis paper seeks to determine which workers affected by lockdown measures can return to work when a government decides to apply lockdown exit strategies. This system, which we call Sequential Selective Multidimensional Decision (SSMD), involves deciding sequentially, by geographical areas, sectors of activity, age groups and immunity, which workers can return to work at a given time according to the epidemiological criteria of the country as well as that of a group of reference countries, used as a benchmark, that have suffered a lower level of lockdown de-escalation strategies. We apply SSMD to Spain, based on affiliation to the Social Security system prior to the COVID-19 pandemic…

Approccio computazionale per la certificazione di strutture aeronautiche in materiale composito

Il processo di certificazione di strutture in materiale composito utilizzate per componenti aero-strutturali è principalmente analitico supportato dall’evidenza dei test a livello di coupon, elementi, sub-componenti, componenti e full-scale. Il processo di certificazione stabilisce che specifiche metodologie di test e particolari controlli dei processi vengano applicati per la qualifica del materiale e dei vari componenti, per verificare la conformità del progetto ai requisiti richiesti. Le procedure (basate su tecniche statistiche) per la caratterizzazione di materiali compositi, comportano l’impegno di una quantità molto grande di risorse ad ogni livello: il criterio di base infatti vuole…

Virtual Reality and Other Realities

2017

Abstract In this chapter, we describe virtual reality and other mixed reality technological tools, highlighting the role they can play in the Clinical and Health Psychology fields: as stimulating, safe and controlled therapeutic contexts for applying psychological treatments; as ecological settings for conducting psychological assessment; and as a realistic laboratory for psychopathology to test research questions that would be very difficult or impossible to address in a traditional laboratory setting. The existing meta-analyses and systematic reviews of their efficacy are presented. The majority of studies have used virtual realities (VRs) as exposure techniques. This is not surprising, c…