Search results for "Risa"
showing 10 items of 788 documents
L'INRA prépare activement l'agriculture de demain
2018
National audience
Measurement of top-quark polarisation observables and a search for dark matter in single-top-quark production with the ATLAS detector at the LHC
2022
Esta tesis presenta dos análisis diferentes basados en los datos resultantes de colisiones protón-protón a una energía en el centro de masas de 13 TeV recolectados con el detector ATLAS del LHC, correspondientes a una luminosidad integrada de 139 fb$^{-1}$. El primer análisis presenta una medida de secciones eficaces diferenciales normalizadas del canal de producción de quarks top en solitario $t$-channel, donde el quark top se desintegra leptónicamente, como función de los tres ángulos de polarización del leptón para eventos con quarks top y quarks antitop tanto separadamente como de forma inclusiva. Estos observables son particularmente sensibles a efectos de nueva física en el vértice $t…
α,β-Dehydroamino acids in naturally occurring peptides
2014
α,β-Dehydroamino acids are naturally occurring non-coded amino acids, found primarily in peptides. The review focuses on the type of α,β-dehydroamino acids, the structure of dehydropeptides, the source of their origin and bioactivity. Dehydropeptides are isolated primarily from bacteria and less often from fungi, marine invertebrates or even higher plants. They reveal mainly antibiotic, antifungal, antitumour, and phytotoxic activity. More than 60 different structures were classified, which often cover broad families of peptides. 37 different structural units containing the α,β-dehydroamino acid residues were shown including various side chains, Z and E isomers, and main modifications: meth…
Rompiendo el silencio. Infancias amenazadas
2018
Annales des travaux des auditeurs de l'IHEDN 2008 : "Remilitarisation et dangerosité du monde"
2008
CD rom; International audience
Adolf von Beckerin identtiset Ateljeessa-maalaukset – aitoja, kopioita vai väärennöksiä?
2021
Artikkelissa esittelemme kahden Adolf von Beckerin nimiin signeeratun Ateljeessa-teoksen tutkimusta taidehistorian, maalaustekniikan ja materiaalitutkimuksen näkökulmista. Samalla pyrimme tuomaan esiin mitä uutta moniammatillinen yhteistyö ja luonnontieteessä käytetyt menetelmät on tuoneet taideteosten tutkimukseen. Tutkimuksessa voitiin osoittaa, että toinen teoksista on alkuperäinen ja toinen on kopio siitä. Kopion maalaajaksi osoittautui Hilda Granstedt. Tutkimusmenetelminä käytettiin perinteisen arkistotutkimuksen lisäksi erilaisia sähkömagneettista säteilyä tallentavia kuvantamismenetelmiä, kuten röntgen-, ultravioletti- ja infrapunareflektiokuvausta, sekä materiaalianalyyttisiin menet…
Thermal kinetics for the energy valorisation of polylactide/sisal biocomposites
2018
[EN] The thermal stability and decomposition kinetics of PLA/sisal biocomposites was discussed to evaluate the suitability of their use in energy recovery processes such as pyrolysis and combustion. The influence of the addition of sisal up to 30%wt, the presence of coupling agent, and the atmosphere of operation, i.e. inert or oxidative was discussed by means of multi-rate linear non-isothermal thermogravimetric experiments. All biocomposites showed a mean high heating value of 15 MJ/kg indicating their suitability for energy recovery processes. The thermal requirements of PLA/sisal decomposition were assessed in terms of onset decomposition temperature and apparent activation energy. A mi…
Tieteen sensurointiyritykset ja tutkijoiden itsesensuuri uhkaavat akateemista vapautta
2023
Tunnen tukijoita, jotka ovat hylänneet herkullisen tutkimusaiheen, koska heitä on pelottanut, että he joutuisivat kiistanalaisen aiheen tutkimisen takia vihamielisten tahojen tikun nokkaan. Heitäkin enemmän tunnen tutkijoita, jotka eivät suostu haastateltaviksi mediassa tai jotka eivät puhu julkisissa tilaisuuksissa tutkimuksensa tuloksista heihin kohdistuvien hyökkäysten pelossa. nonPeerReviewed
Compensatio lucri cum damno e tipicità dei danni punitivi: una prospettiva critica
2019
Il recente revirement giurisprudenziale sembra adottare un metodo casistico che solleva dubbi di compatibilità coi principi di tipicità e prevedibilità dei danni punitivi. L’approccio “funzionale” è rimesso all’opinione del giudice nel caso concreto, con un giudizio di bilanciamento degli interessi che riecheggia quello di cui all’art. 2043 cod. civ. Il criterio della surroga nei rapporti trilaterali, invece, darebbe luogo ad una tipicità alla rovescia, per la quale le fattispecie di danni punitivi sarebbero atipiche ed imprevedibili, mentre le fattispecie rette dal principio di indifferenza sarebbero tipiche. The recent jurisprudence seems to take a case by case approach that raise concern…
Structures optiques dissipatives en cavité laser à fibre
2011
This thesis presents a study of the nonlinear dissipative dynamics of localized of self organized structures in passively mode-locked fiber laser through nonlinear polarization evolution. We reveal the existence of a gradual transition from the quasi-cw to mode locked dynamics in the multi-pulsing regime. We emphasize on the intermediate state, where various new dynamics are observed. We study collective behaviors of dissipative solitons in the presence of a continuous background. One of the complex and attractive dynamics presented is the "soliton rain", which composed of three field components : continuous modes of background, drifting of solitons and condensed phase solitons. This dynami…