Search results for "Pion"

Koulukuri osana oppikoulunopettajan kasvatustyötä : oppilaiden rankaiseminen Kuopion tyttölyseossa 1963-1973

2015

1960-luvulla suomalainen koulujärjestelmä oli muutosten kourissa. Kansakoulun ja oppikoulun muodostama rinnakkaiskoulujärjestelmä korvautui 1970-luvun kuluessa vaiheittain yleisellä ja yhtäläisellä peruskoululla. Peruskoulumuutokseen johtaneet kehityskulut muuttivat myös oppikoulunopettajien asemaa ja työnkuvaa. Etenkin keskikouluasteen massoittuessa aikaisemmin valikoidun oppilasaineksen kanssa työskennelleet oppikoulunopettajat kohtasivat vaihtelevan tasoisia oppilaita erilaisista taustoista. Uuden, oppilaan yksilöllistä kehitystä sekä sosiaalista ja demokraattista kasvatusta ajavan pedagogiikan vaatimukset kohdistuivat myös oppikoulunopettajiin. Yhteiskunnassa nousseet ja erityisesti opi…

Pianificazione degli investimenti nelle reti idriche per il miglioramento dei livelli di servizio

2009

Two- and three-pion quantum statistics correlations in Pb-Pb collisions at root S-NN=2.76 TeV at the CERN Large Hadron Collider

2014

[Introduction] Correlations induced by quantum statistics are sensitive to the spatiotemporal extent as well as dynamics of particle-emitting sources in heavy-ion collisions. In addition, such correlations can be used to search for the presence of a coherent component of pion production. Two- and three-pion correlations of same and mixed charge are measured at low relative momentum to estimate the coherent fraction of charged pions in Pb-Pb collisions at √ s N N = 2 . 76 TeV at the CERN Large Hadron Collider with ALICE. The genuine three-pion quantum statistics correlation is found to be suppressed relative to the two-pion correlation based on the assumption of fully chaotic pion emission. …

Pion photo- and electroproduction on nucleons in relativistic chiral perturbation theory

2022

En esta tesis, hemos estudiado la producción de piones mediante pruebas electromagnéticas en nucleones. Para cada uno de los estudios realizados aquí, nos enfocamos en la Teoría Quiral de Perturbaciones (ChPT) relativista para hadrones ligeros: nucleones, piones y los grados de libertad explícitos Delta. Para preservar la covariancia de la teoría, se implementó el método de renormalización en el esquema Extended On Mass Shell (EOMS). En este caso, las divergencias y los términos que violan el conteo de potencias se absorben en las constantes de baja energía (LECs) del Lagrangiano efectivo. El presente trabajo se desarrolló dentro de tres estudios principales relacionados con la producción d…

Pionowa koordynacja transakcji między grupami producentów rolnych a ich pierwszymi odbiorcami. Przykład rynku ziemniaków

2016

Celem artykułu jest identyfikacja form pionowej koordynacji transakcji między grupami producentów rolnych działających na rynku ziemniaka a ich pierwszymi odbiorcami. Przedmiotem badań były kontrakty podpisane przez grupy w 2014 roku. Dla realizacji wyznaczonego celu zastosowano metodę studium przypadku. Wykorzystanym narzędziem był wspomagany komputerowo wywiad telefoniczny, którego podstawę stanowił kwestionariusz ankiety. Badanie przeprowadzono w okresie od marca do maja 2015 roku. W badaniu wzięło udział 8 grup producentów (około 35% zbiorowości całkowitej). W 2014 roku całość sprzedaży była realizowana w ramach kontraktów, a głównym odbiorcą były zakłady przetwórcze.

Realization of polyaspartamide-based nanoparticles and in vivo lung biodistribution evaluation of a loaded gucocorticoid after aerosolization in mice

2016

Abstract In this study, novel polymeric nanoparticles (NPs) were developed and their potential as carriers for beclomethasone dipropionate (BDP) into the lung after aerosolization was demonstrated by in vivo studies in mice. In particular, these NPs were obtained starting from two polyaspartamide-based copolymers which were synthesized by chemical reaction of α,β-poly(N-2-hydroxyethyl)- dl -aspartamide (PHEA) and its pegylated derivative (PHEA-PEG2000) with poly(lactic acid) (PLA). To obtain nanosized particles, the high pressure homogenization (HPH)—solvent evaporation method was followed by using an organic phase containing both PHEA-PLA and PHEA-PEG2000-PLA (at a weight ratio equal to 1:…

Riflessioni ulteriori sulla pornografia

2019

Il testo analizza il tema della pornografia attraverso la prospettiva sociologica dei copioni sessuali.

Ricerca di residui di prodotti fitosanitari in campioni biologici umani, impatto sulla salute e prospettive diagnostiche.

2012

Centrality dependence of the nuclear modification factor of charged pions, kaons, and protons in Pb-Pb collisions at √sNN = 2.76 TeV

2016

Transverse momentum (pT) spectra of pions, kaons, and protons up to pT = 20 GeV/c have been measured in Pb-Pb collisions at √sNN = 2.76 TeV using the ALICE detector for six different centrality classes covering 0%–80%. The proton-to-pion and the kaon-to-pion ratios both show a distinct peak at pT ≈ 3 GeV/c in central Pb-Pb collisions that decreases for more peripheral collisions. For pT > 10 GeV/c, the nuclear modification factor is found to be the same for all three particle species in each centrality interval within systematic uncertainties of 10%–20%. This suggests there is no direct interplay between the energy loss in the medium and the particle species composition in the hard core of …

Insight into particle production mechanisms via angular correlations of identified particles in pp collisions at √s = 7 TeV

2017

Two-particle angular correlations were measured in pp collisions at s√=7 TeV for pions, kaons, protons, and lambdas, for all particle/anti-particle combinations in the pair. Data for mesons exhibit an expected peak dominated by effects associated with mini-jets and are well reproduced by general purpose Monte Carlo generators. However, for baryon–baryon and anti-baryon–anti-baryon pairs, where both particles have the same baryon number, a near-side anti-correlation structure is observed instead of a peak. This effect is interpreted in the context of baryon production mechanisms in the fragmentation process. It currently presents a challenge to Monte Carlo models and its origin remains an op…