Search results for "HECK"
showing 10 items of 682 documents
Prevalence and factors associated with circadian blood pressure patterns in hypertensive patients.
2009
Comment in Timing of antihypertensive therapy and circadian blood pressure pattern. [Hypertension. 2009] Timing of antihypertensive therapy and circadian blood pressure pattern. Almirall J, Martínez-Ocaña JC, Comas L. Hypertension. 2009 Jun; 53(6):e41; author reply e42. Epub 2009 May 4. Dipping comes of age: the importance of nocturnal blood pressure. [Hypertension. 2009]. Dipping comes of age: the importance of nocturnal blood pressure. O'Brien E. Hypertension. 2009 Mar; 53(3):446-7. Epub 2009 Jan 26.Nondipping in patients with hypertension. [Hypertension. 2009] Ambulatory blood pressure (BP) monitoring has become useful in the diagnosis and management of hypertensive individuals. In addit…
Predominio de las cheapfakes en redes sociales. Complejidad técnica y funciones textuales de la desinformación desmentida en Argentina durante 2020
2022
Research on disinformation concentrates a growing interest in the design of deepfakes and the possible political, economic and social implications of their viral dissemination on social networks. However, as much or more worrying are the cheapfakes: the hoaxes created by the users themselves through the native features of their mobile devices, the rude manipulation of pre-existing files or the simple addition of text that alters the original meaning of the shared messages. The objective of this research is to analyze the degree of technological complexity of the disinformation that circulated in Argentina during 2020 throughout social networks, as well as the role that the text played in it…
Implementation of the inclusive CICO Plus intervention for pupils at risk of severe behaviour problems in SWPBS schools
2020
Check in–check out (CICO) is a widely used and studied behavioural intervention. Although CICO is an effective way to support pupils’ behaviour in a school context, not all pupils benefit from basic CICO. A single-case experimental study was designed to evaluate the effects of CICO Plus support (CICO Plus) for participants whose behaviour was determined to be non-responsive to basic CICO. CICO Plus was planned and implemented with four pupils identified by school CICO teams as needing additional behavioural support. Individual CICO Plus support was planned by multiprofessional teams working on each pupil’s case. The CICO Plus support was based on teaching social skills and behaviour at leas…
The check-list of fungi in Sicily (southern Italy): current survey status
2011
A number of checklists are currently available in several continents, European and extra European countries (Holland, Switzerland, France, United Kingdom, North America, Argentina, Brazil, Uruguay, Venezuela, Bulgaria, Greece, Italy, Norway, Poland, Portugal, Spain, Romania, Russia, Africa, Iran, Oman, Turkey, Asia). The checklists are modern tools for evaluation of fungal biodiversity and precious documents to obtain ecological data and information for management and exploitation of protected areas, agro- and forest ecosystems. A checklist of Sicilian fungi was edited by Venturella (1991), followed, in 2009, by a new report (Gargano et al., 2009). At that time the number of macrofungi from…
Nueva función de la ruta de la proteína quinasa C en el mantenimiento de la integridad genómica
2012
La principal función de la ruta de la Proteína Quinasa C (PKC) en Saccharomyces cerevisiae es asegurar la integridad de la pared celular. En este trabajo se ha descrito que proteínas de la ruta PKC como la MAP quinasa Slt2 y la quinasa Pkc1 son importantes en la respuesta celular a daño en el DNA y además se han extendido los estudios a las PKCs de mamíferos. Respecto al papel de Slt2 en el metabolismo del DNA se ha visto que el mutante slt2 presenta hipersensibilidad a gran variedad de agentes genotóxicos como la hidroxiurea (HU), el metilmetanosulfonato (MMS), fleomicina (Phleo) o radiación ultravioleta (UV). Además, Slt2 es activado por todos estos tratamientos, lo cual sugiere que Slt2 …
Anaerobic Palladium-Catalyzed Chemoselective Oxidation of Allylic and Benzylic Alcohols with α-Bromo Sulfoxide as a Co-Oxidant.
2007
A chemoselective palladium-catalyzed anaerobic oxidation of allylic and benzylic alcohols using an α-bromo sulfoxide as a co-oxidant is described for the first time. The catalyst system is simple and has a long life because of the allowance of phosphane ligands under the non-aerobic conditions. The advantages of the described method include no overoxidation of primary alcohols to carboxylic acids because of the mild conditions applied, the tolerance of oxygen-sensitive functionalities such as a carbon-carbon double bond, an organothio group, or a diorganoamino group and the effective preparation of α,β-unsaturated aldehydes and ketones, resulting from the oxidation of primary and secondary …
Rhodium and palladium complexes from 1,1′ and 1,2 ferrocenylphosphine as bidentate ligands. Versatile coordination
2000
Abstract The complexation of the mixed bidentate ligands 1-diphenylphosphino-1′-diphenylthiophosphinoferrocenyl and 1,2-bis(diphenylphosphino)ferrocenyl with rhodium(I) and palladium(II) species yield a range of mono- and dirhodium or palladium complexes. Their interest as possible catalysts for alkene hydroformylation and alkoxycarbonylation and Heck coupling reactions has been assessed. Fe[C5Me4P(S)Ph2][C5Me4PPh2]PdCl2 and Fe[C5H2-1,2-(PPh2)2-4-tBu][C5H5]PdCl2 have been characterized by single-crystal X-ray diffraction studies.
Practical Synthesis of Vinyl-Substitutedp-Phenylenevinylene Oligomers and Their Triethoxysilyl Derivatives
2001
Luminescent semiconducting organic compounds are widely used as active layers in electro-optical devices. Apart from conjugated polymers, monodisperse oligomers also represent attractive materials. The synthesis of stilbenoid oligomers with polymerizable end groups is presented. Oligo(phenylenevinylene)s with terminal vinyl groups 17–19 are prepared in good yields by Horner–Emmons olefinations or by the Heck reaction of the iodo-substituted oligomers 15, 16 with compressed ethene. Triethoxysilyl groups can be linked via rigid 1,2-vinylene units to the chromophores 26–30, either in the direct reaction of 14, 24 with silanes 21, 22 or by cross-metathesis of 17–19 with the vinylsilanes 21, 22 …
Optically active amphiphilic hyperbranched polyglycerols as templates for palladium nanoparticles
2006
Abstract We report a systematic study on the encapsulation of palladium nanoparticles in optically active amphiphilic hyperbranched polyglycerols with different optical signs and different degrees of polymerization, namely (−)-P(G 40 C16 0.5 ) 1 and (+)-P(G 73 C16 0.5 ) 2 . Several issues have been addressed here: (a) relatively wide size distributions (1–5 nm) of palladium nanoparticles have been achieved, (b) a remarkable template effect ( 1 , DP n = 40, 1.2 ± 0.1 nm; 2 , DP n = 73, 2.3 ± 0.1 nm average particle size) has been observed using TEM technique, as shown by the particle size dependent on the degree of polymerization of the polymers, (c) NaBH 4 is found to be a convenient redu…
ChemInform Abstract: Sustainable Carbon-Carbon Bond Formation Catalyzed by New Oxamate-Containing Palladium(II) Complexes in Ionic Liquids.
2014
New and versatile bis(oxamato)palladate(II) complexes (I) are synthesized and investigated for both Suzuki and Heck coupling reactions in molten tetra-n-butylammonium bromide as ionic liquid.