Search results for "RLU"
showing 10 items of 91 documents
Congruence in genetic markers used to describe Mediterranean and Atlantic populations of European hake (Merluccius merluccius L. 1758)
2004
Summary Eight samples of the hake, Merluccius merluccius L., from the Mediterranean basin (370 fishes total) and one from the Atlantic ocean (50 fishes) were analysed in order to assess genetic variability and describe genetic population structure. Five polymorphic protein coding loci were scored (ADH*, PGI-1*, PGI-2*, PGM* and SOD-1*) in eight samples, together with a haplotype variation of four samples, obtained from polymerase chain reaction/restriction fragment length polymorphism (PCR–RFLP) analysis on the mitochondrial DNA control region. The average value for observed heterozygosity was typically higher than expected (showing an excess of heterozygotes among the samples) whereas the …
Allozymic variation in Mediterranean hake, Merluccius merluccius (Gadidae)
1998
Abstract Four hundred and twenty individual hake from 10 sample sites in the Mediterranean Sea were analysed in order to study genetic variability and identify genetic stock structure. Twenty loci were identified, four of which were polymorphic at the 95% level: ADH*, PGI‐1*, PGI‐2* and SOD‐1*. Average observed and expected heterozygosity were 0.084 and 0.090, respectively. PG1–1* deviated from Hardy‐Weinberg expectations due to an excess of heterozygotes and F‐statistic analysis showed also a significant excess of heterozygosity at SOD‐1*. FST was not significant for each locus except for PGI‐2*, where a single sample from the Channel of Sicily (C5) showed a different pattern in allelic fr…
Exploring Changes in Fishery Emissions and Organic Carbon Impacts Associated With a Recovering Stock
2022
International objectives for sustainable development and biodiversity conservation require restoring fish populations to healthy levels and reducing fishing impacts on marine ecosystems. At the same time, governments, retailers, and consumers are increasingly motivated to reduce the carbon footprint of food. These concerns are reflected in measures of the EU Common Fisheries Policy (CFP) and the CFP Reform Regulation, which highlighted a need to move from traditional single-stock management toward an ecosystem approach to fisheries management (EAF). Using publicly available landings and effort data combined with estimates of adult population biomass, we develop methods to explore the potent…
Kinetic power of quasars and statistical excess of MOJAVE superluminal motions
2012
The MOJAVE survey contains 101 quasars with a total of 354 observed radio components that are different from the radio cores, among which 95% move with apparent projected superluminal velocities with respect to the core, and 45% have projected velocities larger than 10c (with a maximum velocity 60c). Doppler boosting effects are analyzed to determine the statistics of the superluminal motions. We integrate over all possible values of the Lorentz factor the values of the kinetic energy corresponding to each component. The calculation of the mass in the ejection is carried out by assuming the minimum energy state. This kinetic energy is multiplied by the frequency at which the portions of the…
A sensitive study of the peculiar jet structure HST-1 in M87
2013
To obtain a better understanding of the location and mechanisms for the production of the gamma-ray emission in jets of AGN we present a detailed study of the HST-1 structure, 0.8 arcsec downstream the jet of M87, previously identified as a possible candidate for TeV emission. HST-1 shows a very peculiar structure with superluminal as well as possible stationary sub-components, and appears to be located in the transition from a parabolic to a conical jet shape, presumably leading to the formation of a recollimation shock. This scenario is supported by our new RHD simulations in which the interaction of a moving component with a recollimation shock leads to the appearance of a new superlumin…
Apparent superluminal core expansion and limb brightening in the candidate neutrino blazar TXS 0506+056
2019
IceCube has reported a very-high-energy neutrino (IceCube-170922A) in a region containing the blazar TXS 0506+056. Correlated {\gamma}-ray activity has led to the first high-probability association of a high-energy neutrino with an extragalactic source. This blazar has been found to be in a radio outburst during the neutrino event. We have performed target-of-opportunity VLBI imaging observations at 43 GHz frequency with the VLBA two and eight months, respectively, after the neutrino event. We produced two images of TXS 0506+056 with angular resolutions of (0.2x1.1) mas and (0.2x0.5) mas, respectively. The source shows a compact, high brightness temperature core (albeit not approaching the …
webRTC tehnoloģija un tās pielietojums mūsdienu pārlūkprogrammās
2015
Mūsdienās tīmekļa vietnes piedāvā pakalpojumus, kuri ļauj tās lietotājiem veikt savstarpēju informācijas apmaiņu un saziņu. Pastāv problēma sniegt plaši pieejamu, lētu reāla laika komunikāciju starp tīmekļa pārlūka lietotājiem.Šo problēmas cenšas risināt atvērtā pirmkoda projekts ar nosaukumu WebRTC, kas uz tīmekļa pārlūkprogrammu bāzes ļautu veikt tiešus vienādranga savienojumus. Bakalaura darba teorētiskajā daļa ir apzinātas WebRTC tehnoloģijas metodikas, izstrādes veidi un to to pielietojumi, ar kādiem iespējams saskarties WebRTC lietojumprogrammu izstrādē. Darba ietvaros veiktajā praktiskajā daļa izveidota Chrome lietojumprogramma, kura…
Anisakid Nematodes and Potential Risk of Human Anisakiasis through the Consumption of Hake, Merluccius spp., Sold Fresh in Spanish Supermarkets
2022
Nematode parasite species belonging to the Anisakis simplex complex are the most important cause of human anisakiasis through the consumption of (mainly) undercooked, previously not frozen, or conveniently treated fish. In Spain, the consumption of hake has been recognized as an important source of this parasitosis. With the aim of shedding light on the risk factors that can influence the potential risk of human anisakiasis in Spain through the consumption of fresh hake sold by nationwide supermarket chains, a total of 536 small hake specimens belonging to the species Merluccius bilinearis caught off the Northeast American coasts and Merluccius merluccius caught in the Northeast Atlantic an…
Gibellina, la città che visse due volte : terremoto e ricostruzione nella Valle del Belice
2019
Il passato di Gibellina Nuova non è Gibellina Vecchia. Le storie delle due città sono profondamente diverse: il terremoto del 1968, che colpì con un’intensità del IX grado della scala Mercalli la Valle del Belice, è stato additato come causa della loro soluzione di continuità, ma i veri fattori che hanno determinato una frattura nella continuità storica vanno ricercati nelle politiche di intervento e nelle utopie urbanistiche che hanno orientato la ricostruzione. Il dopo-terremoto del Belice è stato il banco di prova della Prima Repubblica di fronte alle calamità naturali; dal fallimento delle sperimentazioni urbanistiche operate in vivo nel tessuto sociale, dalla dicotomia tra ricostruzion…
Spectral evolution of superluminal components in parsec-scale jets
2008
27 pages, 18 figures, 1 table, 1 appendix.-- Pre-print archive.