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Träfflista för sökning "WFRF:(Peralta Julia) ;lar1:(su)"

Sökning: WFRF:(Peralta Julia) > Stockholms universitet

  • Resultat 1-3 av 3
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1.
  • Anrup, Roland, et al. (författare)
  • Centrala universitetsvärden hotas av bolagiseringsidén
  • 2013
  • Ingår i: Dagens nyheter. - 1101-2447.
  • Tidskriftsartikel (populärvet., debatt m.m.)abstract
    • Högskolestiftelser. Förslaget att driva svenska universitet i stiftelseform ­öppnar för bolagisering. Men det är ingen riktig utredning, utan en politisk pamflett utan ­eftertanke. Privatisering av universitet hotar både oberoendet, forskningskvaliteten och samhällsnyttan, skriver 36 forskare vid svenska högskolor och universitet.
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2.
  • Obeso, Juan L., et al. (författare)
  • Lewis Acid-Catalyzed Ring-Opening Alcoholysis of Cyclohexene Oxide : The Role of Open Metal Sites in the Bi(III)-based Metal-Organic Framework SU-101
  • 2023
  • Ingår i: ChemCatChem. - 1867-3880 .- 1867-3899. ; 15:13
  • Tidskriftsartikel (refereegranskat)abstract
    • SU-101 was screened for the acid-catalyzed ring-opening alcoholysis of cyclohexene oxide. Results indicated access to open metal sites within SU-101, a fundamental requirement (Lewis acid Bi+3 sites) for this reaction. In addition, SU-101 exhibited high chemical stability, demonstrated by retaining its crystalline structure after the reaction. The cyclohexene conversion was estimated to be 99.8, 96.8, and 14.3 % at 40 °C for methanol, ethanol, and propanol, respectively. Also, SU-101 demonstrated an outstanding catalytic cyclability performance for five cycles without losing catalytic activity. 
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3.
  • Peralta-Maraver, Ignacio, et al. (författare)
  • Environmental filtering and community delineation in the streambed ecotone
  • 2018
  • Ingår i: Scientific Reports. - : Springer Science and Business Media LLC. - 2045-2322. ; 8
  • Tidskriftsartikel (refereegranskat)abstract
    • A current controversy in ecology is whether biological communities are discrete biological entities or simply study units created for convenience; a debate that becomes even more heated when delimiting communities along ecotones. Here, we report an interdisciplinary study designed to address the interplay between environmental drivers and community ecology in a typical ecotone ecosystem: the streambed. Environmental filtering at a micro-scale determined how diversity, productivity and composition of the whole streambed assemblage varied with depth and with the direction of vertical water exchange. Biomass and production decreased with increasing depth, and were lower under upwelling than downwelling conditions. However, the rate at which biomass and production decreased with increasing depth differed significantly for different taxonomic groups. Using quantitative biocenosis analysis, we also showed that benthic and hyporheic zone assemblages (assemblages in close juxtaposition) could be clearly distinguished as discrete communities with individual integrity. Vertical hydrodynamic conditions also influenced the demarcation between both communities; the benthic community reached greater depths in downwelling than in upwelling zones.
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  • Resultat 1-3 av 3

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