Results 71 to 80 of about 43,295 (211)
La revolución química : entre la historia y la memoria [PDF]
, 2006 KIM, Mi Gyung. Affinity, that elusive dream : a genealogy of the chemical revolution. MILLER, David P. Discovering water : James Watt, Henry Cavendish and the nineteenth-century «water controversy». BERETTA, Marco (ed.). Lavoisier in perspective.
Bertomeu Sánchez, José Ramón
core
Organophotoredox/Cobalt‐Catalyzed Retro‐Hydroformylation of Aldehydes
ChemistryEurope, Volume 4, Issue 4, April 2026.A new photoredox/cobalt retro‐hydroformylation is developed. This one‐pot two‐step process involves the in situ formation of the corresponding 1,4‐dihydropyridine as key intermediate. Under mild reaction conditions, alkenes are efficiently produced from a wide range of aliphatic α‐monosubstituted aldehydes, with high functional‐group tolerance.
Augustin Nouaille +3 more
wiley +1 more source
Advanced Sensor ResearchA high‐performance capacitive sensor is presented for the determination of hydroquinone (HQ) based on n‐type indium phosphide (n‐InP) electrodes with an electrochemically deposited polyphosphazene (PPP) coating. The integration of PPP with InP electrodes
Siwar Jebril +5 more
doaj +1 more source
Flogisto versus oxígeno: una nueva reconstrucción y su fundamentación histórica
Crítica, 2018 En este trabajo desarrollamos reconstrucciones estructuralistas de las teorías del flogisto, de Priestley, y del oxígeno, de Lavoisier. Nuestra propuesta es una alternativa a la de Caamaño (2009 y 2011) en una pretensión de ajustarnos más a las ...
José L. Falguera +1 more
doaj +1 more source
Stem Cell Research & Therapy, 2021 Background Endothelial progenitor cells (EPCs) are promising candidates for the cellular therapy of peripheral arterial and cardiovascular diseases. However, hitherto there is no specific marker(s) defining precisely EPCs.
Mohamed Essameldin Abdelgawad +3 more
doaj +1 more source
Challenges in evaluating surgical innovation [PDF]
, 2009 Research on surgical interventions is associated with several methodological and practical challenges of which few, if any, apply only to surgery. However, surgical evaluation is especially demanding because many of these challenges coincide.
Blazeby, Jane M +6 more
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SYNTHESIS AND CHARACTERISATIONS OF SIX NEW BIS-THIOSEMICARBAZONE LIGANDS
Studia Universitatis Moldaviae: Stiinte reale si ale naturii, 2021 Six new bis-thiosemicarbazones ligands were synthesized with rigid or flexible organic chemical links between the two thiosemicarbazones moieties. Such ligands have been designed for the synthesis of polymetallic coordination complexes.
Diana CEBOTARI +3 more
doaj
On the formal structure of logarithmic vector fields
, 2006 In this article, we prove that a free divisor in a three dimensional complex manifold must be Euler homogeneous in a strong sense if the cohomology of its complement is the hypercohomology of its logarithmic differential forms. F.J. Calderon-Moreno et al.
Granger, Michel, Schulze, Mathias
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Very nilpotent basis and n-tuples in Borel subalgebras [PDF]
, 2010 A (vector space) basis B of a Lie algebra is said to be very nilpotent if all the iterated brackets of elements of B are nilpotent. In this note, we prove a refinement of Engel's Theorem.
Michael, Bulois
core +5 more sources
A Review on Cu‐Based Catalysts for Dehydrogenation of Chemical Hydrides
Rare Metals, Volume 45, Issue 4, April 2026.ABSTRACT Hydrogen (H2) plays a crucial part in the building of clean and sustainable energy systems due to its advantages of being renewable, clean, and pollution‐free. Nevertheless, the secure and effective production‐storage‐transportation of H2 presents critical challenges.
Yixing Luo +6 more
wiley +1 more source