Results 21 to 30 of about 357,502 (242)
Aryl and Alkyl Radiotrifluoromethylation via Metallaphotoredox‐Mediated Radical Cross‐Coupling
Angewandte Chemie, EarlyView.The metallaphotoredox‐mediated radiotrifluoromethylation of arenes and alkanes is described. The operationally simple protocols make use of substrates bearing thianthrenium salts (TT) or N‐hydroxyphthalimide (NHPI) esters and CF218FI. The reaction proceeds through a Ru‐mediated radical formation followed by a Cu‐mediated radical cross‐coupling step and
Lukas Veth +2 more
wiley +2 more sources
Registro de ingreso de madera de pino en Argentina, a partir de construcciones históricas
Boletín de la Sociedad Argentina de Botánica, 2014 Es objetivo del trabajo analizar, a partir de construcciones históricas, en qué periodo fueintroducida la madera de pino en Argentina. El trabajo se basa en caracterizar y determinar piezasde madera de construcciones históricas. Se estudiaron muestras de
A. M Giménez +3 more
doaj +1 more source
Aporte de Nutrientes por Caída de Hojarasca en Ecosistemas Forestales
Terra LatinoamericanaEn los ecosistemas forestales, la hojarasca desempeña un papel fundamental en la transferencia de nutrientes entre el sistema suelo-planta. El objetivo de este estudio fue analizar la caída de la hojarasca, el depósito y uso eficiente de macronutrientes ...
César Gerardo Ramos-Hernández +5 more
doaj +1 more source
Polarimetric Properties of Blazars Caught by the WEBT
Galaxies, 2021 Active galactic nuclei come in many varieties. A minority of them are radio-loud, and exhibit two opposite prominent plasma jets extending from the proximity of the supermassive black hole up to megaparsec distances.
Claudia M. Raiteri, Massimo Villata
doaj +1 more source
Sistemi di tariffe di cubatura per le fustaie di pino d’aleppo, pino laricio e pino domestico della Sicilia [PDF]
, 2009 The aim of this study is to set up one-way volume table series to predict stem volume of the main conifers in Sicily, namely Italian stone pine, Aleppo pine and Corsican pine.
Chiriacò, Maria Vincenza +3 more
core +2 more sources
On the classification of prolongations up to Engel homotopy
, 2017 In [CPPP] it was shown that Engel structures satisfy an existence $h$-principle, and the question of whether a full $h$-principle holds was left open.
del Pino, Álvaro
core +1 more source
Ancient shrinking spherical interfaces in the Allen-Cahn flow [PDF]
, 2017 We consider the parabolic Allen-Cahn equation in $\mathbb{R}^n$, $n\ge 2$, $$u_t= \Delta u + (1-u^2)u \quad \hbox{ in } \mathbb{R}^n \times (-\infty, 0].$$ We construct an ancient radially symmetric solution $u(x,t)$ with any given number $k$ of ...
del Pino, Manuel +1 more
core +2 more sources
Atención Primaria, 2014 Objetivo: Evaluar el efecto de una intervención educativa específica sobre el control del asma y la calidad de vida. Diseño: Ensayo clínico con asignación aleatoria de pacientes asmáticos, a un grupo de intervención educativa (GI) y otro de control (GC).
Gloria Cano Fuentes +5 more
doaj +1 more source
New sharp Gagliardo-Nirenberg-Sobolev inequalities and an improved Borell-Brascamp-Lieb inequality [PDF]
, 2017 We propose a new Borell-Brascamp-Lieb inequality which leads to novel sharp Euclidean inequalities such as Gagliardo-Nirenberg-Sobolev inequalities in R^n and in the half-space R^n\_+.
Bolley, François +4 more
core +2 more sources
Electrically Readable Lateral Flow Assay Using Organic Transistors for Diagnostic Applications
Advanced Materials, EarlyView.Electrolyte‐gated organic field‐effect transistors (EGOFETs) are integrated with lateral flow (LF) paper fluidics to create a reusable, portable, and low‐cost point‐of‐care (PoC) diagnostic test. The devices are validated for Human Immunoglobulin G detection, achieving high sensitivity (0.1 fm), selectivity, and reproducibility with rapid results in 20–
María Jesús Ortiz‐Aguayo +4 more
wiley +1 more source