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Now showing items 1031-1040 of 1056
Microchimerism does not correlate with survival of murine cardiac allografts
(Elsevier B.V., 2004-05-01)
The development of microchimerism was evaluated at different time points after infusion of a mixed population of bone marrow and spleen cells from (BALB/c x C57B1/6)F1 mice in the presence or absence of a cardiac transplant. ...
Minor sesquiterpenes from the volatile oil from leaves of Guarea guidonia Sleumer (Meliaceae)
(Taylor & Francis Ltd, 2009-01-01)
The essential oil from leaves of Guarea guidonia was subjected to chromatographic separation procedures to afford nine sesquiterpenes; two of them are new eudesmane derivatives. the chemical structures of the obtained ...
PREPARATION OF alpha-ACETYLOXY-N-CYCLOHEXYLAMIDES VIA PASSERINI REACTION USING DIMETHYLCARBONATE AS ECO-FRIENDLY SOLVENT
(Soc Brasileira Quimica, 2018)
A series of alpha-acetyloxy-N-cyclohexylamides was efficiently obtained via Passerini reaction of cyclohexyl isocyanide, acetic acid, and different aromatic and aliphatic aldehydes using refluxing dichloromethane or ...
Determination of inorganic nutrients in wheat flour by laser-induced breakdown spectroscopy and energy dispersive X-ray fluorescence spectrometry
(Elsevier B.V., 2014-10-01)
Laser-induced breakdown spectroscopy (LIBS) and energy dispersive X-ray fluorescence spectrometry (EDXRF) were evaluated for the determination of P, K, Ca, Mg, S, Fe, Cu, Mn and Zn in pressed pellets of wheat flours. EDXRF ...
SECM Studies on the Electrocatalytic Oxidation of Glycerol at Copper Electrodes in Alkaline Medium
(Wiley-Blackwell, 2012-08-01)
This study aims at analyzing the reaction mechanism of the electrooxidation of glycerol at copper surfaces in NaOH solutions using Scanning Electrochemical Microscopy (SECM) in the substrate generation/tip collection (SG/TC) ...
MyD88 Signaling Is Directly Involved in the Development of Murine Placental Malaria
(Amer Soc Microbiology, 2014-02-01)
Malaria is a widespread infectious disease caused by the parasite Plasmodium. During pregnancy, malaria infection leads to a range of complications that can affect both the mother and fetus, including stillbirth, infant ...
Topical application of retinyl palmitate-loaded nanotechnology-based drug delivery systems for the treatment of skin aging
(Hindawi Publishing Corporation, 2014-01-01)
The objective of this study was to perform a structural characterization and evaluate the in vitro safety profile and in vitro antioxidant activity of liquid crystalline systems (LCS) with and without retinyl palmitate ...
Chromosomal Evolution in the Brazilian Geckos of the Genus Gymnodactylus (Squamata, Phyllodactylidae) from the Biomes of Cerrado, Caatinga and Atlantic Rain Forest: Evidence of Robertsonian Fusion Events and Supernumerary Chromosomes
(Karger, 2009-01-01)
Chromosomes of the South American geckos Gymnodactylus amarali and G. geckoides from open and dry areas of the Cerrado and Caatinga biomes in Brazil, respectively, were studied for the first time, after conventional and ...
Crosstalk between B16 melanoma cells and B-1 lymphocytes induces global changes in tumor cell gene expression
(Elsevier B.V., 2013-10-01)
The analysis of gene expression patterns in cancers has improved the understanding of the mechanisms underlying the process of metastatic progression. However, the acquisition of invasive behavior in melanoma is poorly ...
Evolutionary history of Scinax treefrogs on land-bridge islands in south-eastern Brazil
(Wiley-Blackwell, 2012-09-01)
Aim We investigated how Pleistocene refugia and recent (c. 12,000 years ago) sea level incursions shaped genetic differentiation in mainland and island populations of the Scinax perpusillus treefrog group. Location Brazilian ...