Search results for "CEC"
showing 10 items of 347 documents
The Pros and Cons of Beyond Standard Model Interpretations of ANITA Events
2019
The Antarctic Impulsive Transient Antenna (ANITA) experiment has observed two air shower events with energy $\sim 500~{\rm PeV}$ emerging from the Earth with exit angles $\sim 30^\circ$ above the horizon. As was immediately noted by the ANITA Collaboration, these events (in principle) could originate in the atmospheric decay of an upgoing $\tau$-lepton produced through a charged current interaction of a $\nu_\tau$ inside the Earth. However, the relatively steep arrival angles of these perplexing events create tension with the standard model (SM) neutrino-nucleon interaction cross section. Deepening the conundrum, the IceCube neutrino telescope and the Pierre Auger Observatory with substanti…
Melodieen zu dem Oppelner Katholischen Gesangbuche Bernharda Kothego (1821–1897). Dzieje i repertuar
2021
Muzyka kościelna na przełomie XVIII i XIX wieku przeżywała kryzys. Pozycja organisty w społeczeństwie uległa dewaluacji, a za kontuarem zasiedli przypadkowi ludzie. Niezwykle potrzebne w tym momencie okazały się wszelkie materiały przybliżające rolę muzyki w kościele, ale także takie, dzięki którym znający nuty kandydat mógł od razu rozpocząć posługę organisty. Pragnienie zapełnienia tej luki towarzyszyło Bernhardowi Kothemu, dyrektorowi muzycznemu kościoła św. Krzyża w Opolu, w 1865 roku, podczas komponowania zbioru towarzyszeń organowych Melodieen zu dem Oppelner katholischen Gesangbuche. Niniejszy artykuł dzieli się na trzy części. W pierwszej przybliżona zostanie postać Bernharda Kotheg…
Production of cecropin A in transgenic rice plants has an impact on host gene expression.
2008
Summary Expression of the cecropin A gene in rice confers resistance to the rice blast fungus Magnaporthe oryzae. In this study, a polymerase chain reaction-based suppression subtractive hybridization approach was used to generate a cDNA macroarray from the elite japonica rice (Oryza sativa L.) cultivar ‘Senia’. Gene expression studies revealed that the expression of components of the protein secretory and vesicular transport machinery is co-ordinately activated at the pre-invasive stage of infection of rice by the blast fungus. Comparisons of gene expression between wild-type and cecropin A plants revealed the over-expression of genes involved in protection against oxidative stress in tran…
Search for cosmic sources in neutrino telescopes and time calibration in the ANTARES neutrino telescope
2018
Aunque la astronomía de neutrinos es una disciplina muy reciente, está resultando ser muy en un estado estimulante. Los diversos resultados publicados por la colaboración IceCube han mostrado la existencia de un flujo de neutrinos cósmicos de altas energías, del cual se desconoce su origen, y del que no se ha observado una dirección privilegiada. El telescopio de neutrinos ANTARES ha sido capaz de excluir la posibilidad de que algunos de los eventos observados por IceCube se hayan producido por una fuente puntual en la región del centro galáctico. Además, el último análisis de flujos difusos de ANTARES muestra un resultado compatible con el flujo observado por IceCube. Actualmente, existen …
Time-integrated Neutrino Source Searches with 10 years of IceCube Data
2020
Physical review letters 124(5), 051103 (1-9) (2020). doi:10.1103/PhysRevLett.124.051103
Neutrinos below 100 TeV from the southern sky employing refined veto techniques to IceCube data
2020
Many Galactic sources of gamma rays, such as supernova remnants, are expected to produce neutrinos with a typical energy cutoff well below 100 TeV. For the IceCube Neutrino Observatory located at the South Pole, the southern sky, containing the inner part of the Galactic plane and the Galactic Center, is a particularly challenging region at these energies, because of the large background of atmospheric muons. In this paper, we present recent advancements in data selection strategies for track-like muon neutrino events with energies below 100 TeV from the southern sky. The strategies utilize the outer detector regions as veto and features of the signal pattern to reduce the background of atm…
New records of Cynipidae (Hymenoptera) from Italy
2015
New records of Cynipid gall wasps and inquilines for the Italian peninsula and Sicily and their new host plants for the Palaearctic Region are listed and commented on. Among them we find: Cerroneuroterus cerrifloralis (Mullner 1901) as new for Italy and new for the Palaearctic region as host on Quercus suber; Andricus multiplicatus Giraud 1859 on Q. suber, as new host for the Palaearctic region; Aylax papaveris (Perris 1839), reported in Italy over a century ago, but later overlooked; Cerroneuroterus minutulus (Giraud 1859), also reported more than a century ago from Sicily, but later overlooked. Among the inquilines are here listed: Synergus variabilis Mayr 1872, emerged from Janetia cerri…
MORPHOLOGICAL AND ANATOMICAL STRUCTURE OF GALLS IN GENISTA FLORIDA L. SUBSP. POLYGALIPHYLLA (BROT.) COUTHINO (LEGUMINOSAE)
1999
This paper describes the morphology and anatomy of a structure which appears in the floral racemes of Genista florida L. subsp. polygaliphylla (Brot.) Couthino. In this subspecies the floral racemes have a small number of flowers. This structure develops quite frequently in this taxon, which is found in the northwest of the Iberian Peninsula, but never in Genista florida subsp. florida. Its morphology is simple: bottle-shaped, wide at the base and elongated to a narrow peak at the upper extreme. Anatomical examination shows that these structures have a close similarity to flowers. Since they develop by the oviposition of one insect of the Cecidomyiidae family in the floral buds, they can be…
Polyurethane and Polyisocyanurate Foams in External Tank Cryogenic Insulation
2013
External tanks of the spacecrafts need not only efficient, but also safe cryogenic insulation materials and the issues of their development are still urgent. At present, polyurethane (PUR) or polyisocyanurate (PIR) foams’ cryogenic insulation is widely applied in the partially reusable launch systems. Factors influencing the cryogenic resistance of external thermal insulation performed of spray-on PUR or PIR foams are characterised based on a wide literature search. They include chemical structure and macromolecules’ architecture of polymeric matrix, physical and mechanical properties of foams, thermal stability and combustibility, cellular structure of foams etc. Experimental data on physi…
Pacientu aprūpe pēc mikrodiskektomijas operācijas agrīnajā periodā
2016
Bakalaura darba tēma – pacienta aprūpe pēc mikrodiskektomijas operācijas agrīnajā periodā. Tēmas aktualitāti nosaka tas, ka muguras sāpes ir viena no izplatītākajām sūdzībām medicīnā. Sāpēm var būt dažādi iemesli, piemēram, saspringti muskuļi, starp skriemeļu diska bojājums, artrīts, bet viens no izplatītākajiem ir diska trūce. Darba mērķis ir noskaidrot X slimnīcas Y nodaļas strādājošo māsu viedokli par aprūpi pēc mikrodisektomijas operācijas agrīnajā periodā. Mērķa sasniegšanai tika izvirzīti vairāki uzdevumi. Izvirzītais pētniecības jautājums: kāda ir aprūpe pēc mikrodisektomijas operācijas agrīnajā periodā X slimnīcas Y nodaļā? Darbā izmantota kvalitatīvā pētniecības metode un pētniecīb…