Výsledky vyhledávání - "R. E. Catalán"

Effect of the initiator acetyl perchlorate upon the morphology, kinetics and mechanisms of crystal growth of poly(oxymethylene)

Autor: M. Rodríguez-Baeza, R. E. Catalán Saravia

Publikováno v: Frontiers in Polymer Science ISBN: 9783798506916

The kinetics of the cationic polymerization of trioxane initiated by different concentrations of acetyl perchlorate in dichlormethane solution is analyzed. Hexagonal single crystals of poly(oxymethylene) (POM), are obtained after an induction period.

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::eaab866e356531ecba717f0109e121d2
https://doi.org/10.1007/bfb0114014

Zobrazit plný text záznamu

STUDY OF GRAFT COPOLYMERIZATION ON SECONDARY CELLULOSIC FIBER WITH ACRYLONITRILE

Autor: A. Neira, Bernabé L. Rivas, R. E. Catalán

Publikováno v: Boletín de la Sociedad Chilena de Química, Volume: 47, Issue: 1, Pages: 39-47, Published: MAR 2002
Boletín de la Sociedad Chilena de Química v.47 n.1 2002
SciELO Chile
CONICYT Chile
instacron:CONICYT

Se sintetizaron copolímeros por injerto de acrilonitrilo en fibra celulósica secundaria, usando como iniciador el sistema redox: ion ferroso-peróxido de hidrógeno, en medio acuoso. También, se prepararon copolímeros vía xantación de celulosa.

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::142ffca7690f4df542c7c8e8150fb297
https://doi.org/10.4067/s0366-16442002000100008

Zobrazit plný text záznamu

Sphingolipid derivatives modulate intracellular Ca2+ in rat synaptosomes

Autor: B G, Miguel, M C, Calcerrada, R E, Catalán, A M, Martínez

Publikováno v: Acta neurobiologiae experimentalis. 61(2)

Sphingosylphosphorylcholine (SPC) induces a rapid increase of intracellular Ca2+ concentration in isolated synaptosomes. This effect is dose-dependent and is also dependent on extracellular Ca2+. Sphingosine (SPH) has a smaller effect and treatment w

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=pmid________::2e852706d6a9dfbddb74e9216b14049a
https://pubmed.ncbi.nlm.nih.gov/11512408

Zobrazit plný text záznamu

Synergistic effect of endothelin-1 and serotonin in rabbit platelets: effect on tyrosine phosphorylation

Autor: A, Liras, R E, Catalán, A M, Martínez

Publikováno v: Thrombosis research. 100(4)

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=pmid________::6da8995350318f800106c6d6542784a6
https://pubmed.ncbi.nlm.nih.gov/11113276

Zobrazit plný text záznamu

Phosphatidylinositol pathways

Autor: R. E. Catalán

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::18b6aedd3ef00aecd5a05d2bf75fb95f
https://doi.org/10.1017/cbo9780511570216.036

Zobrazit plný text záznamu

PAF and thrombin actions in platelets are selectively affected by a new 1,4-dihydropyridine derivative

Autor: R E, Catalán, A M, Martínez, M D, Aragonés, E, Garde, M, Lombardía, P, Ortega

Publikováno v: Journal of biochemistry. 113(4)

In the present study we described the effects of a new 1,4-dihydropyridine derivative with antithrombotic activity on phosphoinositide turnover in washed platelets stimulated by either platelet-activating factor or thrombin. In 32P-labeled rabbit pla

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=pmid________::2547f8f84b3c15384a23c0eb229263ee
https://pubmed.ncbi.nlm.nih.gov/8390447

Zobrazit plný text záznamu

Sphingosylphosphorylcholine-induced release of intracellular calcium in rat brain synaptosomes

Autor: A.M. Martínez, B.G. Miguel, R. E. Catalán, M.C. Calcerrada, L Martı́n

Publikováno v: Biochemical Society Transactions. 28:A278-A278

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::2098783ecb747476a40ec6cdc020051f
https://doi.org/10.1042/bst028a278b

Zobrazit plný text záznamu

Branched and linear polyethyleneimine supports for resins with retention properties for copper and uranium. VII

Autor: R. E. Catalán, H. A. Maturana, B. L. Rivas, I. M. Perich

Publikováno v: Journal of Applied Polymer Science. 38:801-807

Weak and strong basic resins were synthesized by crosslinking with 1,7-dibromoheptane and 1,12-dibromododecane and subsequent N-methylation reaction of branched and linear polyethyleneimine. All the resins are insoluble in water. It was found that th

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::551e146219394f594b70e5e4a63e9da7
https://doi.org/10.1002/app.1989.070380503

Zobrazit plný text záznamu

Preparation and properties of resins with adsorption properties for heavy metal ions. Part 5

Autor: B. L. Rivas, I. M. Perich, R. E. Catalán, U. Angne, H. A. Maturana

Publikováno v: European Polymer Journal. 24:967-970

Strong and weak resins were prepared by crosslinking branched polyethyleneimine with three dihalo-aliphatic derivatives and subsequent N -methylation. All the resins were insoluble in water and common organic solvents. It was found that the N -methyl

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::594fa8650f344f94d84fd6745c195961
https://doi.org/10.1016/0014-3057(88)90178-4

Zobrazit plný text záznamu

Effect of ethyl-p-chlorophenoxyisobutyrate (CPIB) on growth and fecundity of the insect Ceratitis capitata

Autor: R. E. Catalán, M. P. Castillón, J.G. Priego

Publikováno v: Comparative Biochemistry and Physiology Part C: Comparative Pharmacology. 73:335-337

1. The hypolipidemic agent ethyl-p-chlorophenoxyisobutyrate (CPIB) produces a retarded growth of the diptera Ceratitis capitata at larval dietary levels of 0.5–4%. Lethal effect and weight diminution after CPIB treatment during larval stage were al

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::0c2a51f2d95686caa381e98df8d1fc5a
https://doi.org/10.1016/0306-4492(82)90131-9

Zobrazit plný text záznamu

Vyhledávací nástroje:

Upřesnit hledání