Results 221 to 230 of about 561,321 (391)
Revisión de los criterios de confiabilidad del código de diseño estructural como alternativa para la competitividad [PDF]
, 2001 Juan Pablo Espinosa Céspedes +1 more
openalex +1 more source
ChemistryEurope, EarlyView.Enantiomerically enriched borylalkylidenecycloalkanes can transfer axial chirality to spirocyclic compounds with central chirality, without erosion of enantiomeric ratio. The method involves cyclopropanation, borylcyclopropanation, epoxidation, and aziridination reactions, that proceed in astereodivergent manner giving access to spirocycles with ...
Nerea Iragorri +4 more
wiley +1 more source
ChemistryEurope, EarlyView.Structural diversity can be generated from α,β‐unsaturated carbonyls via N‐tosylhydrazones through a one‐pot‐three‐component photochemically promoted carboborylation/allylic Suzuki sequence. The wide availability and scope regarding each of three reaction partners: carbonyls, alkylboronic acids, and aryl halides, and the functionalities available in ...
Álvaro Valdés‐Maqueda +2 more
wiley +1 more source
Factores de competitividad en el sector de las artes gráficas en España
, 1999 Ana Redondo Cano
openalex +2 more sources
Competitividade empresarial : impulsionador da competitividade em Portugal?
, 2011 Mestrado em ...
openaire +1 more source
Total Synthesis and Analysis of Phenolic Phytoprostanes, Oxidized Derivatives of Lipophenols
Chemistry – A European Journal, EarlyView.The total synthesis of four hydroxytyrosol‐phytoprostanes (PhytoPs‐HT) was achieved in 20 steps, enabling their first identification as HT‐α‐linolenate oxidation products. This work revealed new oxidized derivatives of lipophenols via UHPLC‐MS/MS analysis, offering a strategy to trace HT‐derived compounds in complex matrices, aiding food and biomedical
M. Jordan Lehoux +6 more
wiley +1 more source
Regulación del medio ambiente y competitividad
, 1999 Theodore Panayotou, Jeffrey R. Vincent
openalex +2 more sources
ChemPhotoChem, EarlyView.Photoprotection is a current and relevant topic; therefore, the development of new sunscreens is necessary. To this end, nature is examined for molecules such as mycosporine‐like amino acids and gadusol. Through rational design, this study has successfully synthesized new UV filters and evaluated their photoprotective and antioxidant properties ...
Leonardo López‐Cóndor +5 more
wiley +1 more source
Individual differences in arithmetic fluency [PDF]
, 2016 Este estudio contrasta la hipótesis de que las dificultades que tienen algunos sujetos en el dominio de las tablas de multiplicar se deban a su incapacidad para afrontar la interferencia. Los resultados no muestran diferencias en medidas de interferencia
Calleja-Reina, Marina +4 more
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