Results 51 to 60 of about 58,506 (216)

Magnesium and Calcium Bisguanidinates: Catalytic Activity in the Hydroboration of Unsaturated Molecules

open access: yesAdvanced Synthesis &Catalysis, Volume 367, Issue 1, January 7, 2025.
Abstract The role of ligands in catalytically active metal complexes can be crucial. Herein, we present a study on the synthesis and catalytic behavior of alkaline earth bisguanidinato complexes. The reactivity of trisubstituted guanidines, specifically (iPrHN)2CNR (R=Ph, 2‐Ph2PC6H4, 2‐MeSC6H4), towards magnesium and calcium alkyls or amides was ...
Carlos Ginés   +6 more
wiley   +1 more source

Prevalencia de lesiones incipientes de caries dental en niños escolares Prevalence of incipient lesions of dental caries in school children

open access: yesRevista Cubana de Estomatología, 2008
OBJETIVOS: determinar la prevalencia de lesiones incipientes de caries dental en los niños de 6-11 años de la escuela primaria "José A Echeverría," municipio Plaza de la Revolución en el período de enero a diciembre del 2006, identificar en el grupo ...
Nayda Nasco Hidalgo   +3 more
doaj  

Resúmenes de tesis. Área Temática: Manejo Integrado de Plagas (MIP)

open access: yesCiencia y Tecnología Agropecuaria, 1998
Evaluación de la actividad insecticida de Metarhizium sp. para el control de la Langosta de los Llanos Orientales Rafael María Zamora y Alba Marina Cotes Durante los últimos años se ha observado un crecimiento alarmante de las poblaciones de langosta ...
Revista Corpoica
doaj   +1 more source

Ruthenium Catalysed Transfer Deuteration of Heteroaromatics in D2O

open access: yesAsian Journal of Organic Chemistry, Volume 14, Issue 1, January 2025.
The partial reduction of heterocycles with selective deuterium incorporation using formic acid/sodium formate, D2O and a ruthenium catalyst was achieved. A biphasic medium (toluene/D2O) allowed excellent catalyst recycling. The ruthenium center allowed an inversion of polarity of D+ that was transformed into deuteride.
Carlos Gonzalo‐Navarro   +5 more
wiley   +1 more source

Pest categorisation of Lepidosaphes pistaciae

open access: yesEFSA Journal, Volume 23, Issue 1, January 2025.
Abstract Following the commodity risk assessment of Prunus persica and P. dulcis plants for planting from Türkiye, in which Lepidosaphes pistaciae (Hemiptera: Diaspididae), the pistachio oyster scale or yellow pistachio scale, was identified as a pest of possible concern, the EFSA Panel on Plant Health performed a pest categorisation for the territory ...
EFSA Panel on Plant Health (PLH)   +26 more
wiley   +1 more source

Factores de riesgo asociados a lesiones incipientes de caries dental en niños

open access: yesRevista Cubana de Estomatología, 2013
Introducción: las lesiones de caries pueden ser detenidas en cualquier etapa de su desarrollo, con mayor éxito cuando aún es una lesión incipiente o mancha blanca; para lograrlo es imprescindible conocer bien los factores y las condiciones del ...
Nayda Nasco Hidalgo   +4 more
doaj  

BRIVA‐ONE study: 12‐month outcomes of brivaracetam monotherapy in clinical practice

open access: yesEpilepsia Open, Volume 9, Issue 6, Page 2429-2442, December 2024.
Abstract Objective This study investigated the effectiveness and tolerability of brivaracetam (BRV) monotherapy in a large series of patients with epilepsy. Method This was a multicenter, retrospective, observational, non‐interventional study in 24 hospitals across Spain.
Vicente Villanueva   +30 more
wiley   +1 more source

Evolución del espacio natural de la cabecera de las Lagunas de Ruidera siglos XVIII y XIX) a partir de la cartografía (Albacete, España) [PDF]

open access: yes, 2016
En este trabajo se aborda el análisis de las variaciones experimentadas tanto en los vasos lacustres, como en las vertientes y orillas del tramo superior del sistema fluvio-lacustre de Ruidera a lo largo de los siglos XVIII y XIX. Este paraje, conforma
Aragón, J. R.   +4 more
core   +1 more source

Markers for meat provenance and authenticity with an account of its defining factors and quality characteristics – a review

open access: yesJournal of the Science of Food and Agriculture, Volume 104, Issue 12, Page 7027-7084, September 2024.
Abstract Provenance is becoming increasingly important in meat supply chains as it lends products higher perceived quality. However, its precise definition and interpretation along with its associated characteristics factors have remained somewhat elusive.
Sara Wilhelmina Erasmus   +4 more
wiley   +1 more source

La mancha bacteriana del champiñón y otras setas cultivadas [PDF]

open access: yes, 2011
El cultivo de champiñón y otras setas cultivadas se ve afectado por enfermedades de origen bacteriano que pueden causar pérdidas de producción importantes.
González, A.J. (Ana)
core  

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