Buscar
Mostrando ítems 11-20 de 14224
Pheromone chirality of african palm weevil, Rhynchophorus phoenicis (F.) and palmetto weevil, Rhynthophorus crueniatus (F.) (Coleoptera: Curculionidae)
(1994-09)
There are four stereoisomers of both 3-methyl-octan-4-ol, the aggregation pheromone of the African palm weevil,Rhynchophorus phoenicis (F.) and 5-methyl-octan-4-ol, the aggregation pheromone of the palmetto weevil,Rhynchophorus ...
MethylMix 2.0: An R package for identifying DNA methylation genes
(Oxford University Press, 2018-09)
Summary: DNA methylation is an important mechanism regulating gene transcription, and its role in carcinogenesis has been extensively studied. Hyper and hypomethylation of genes is a major mechanism of gene expression ...
3-Hydroxy-4-methyl-4-pentenonitrile and 4-methyl-3-oxo-4-pentenonitrile: Study of the tautomerics equilibria in gas phase and in solution
(Pergamon-Elsevier Science Ltd, 2010-10-01)
In the present work the tautomerics equilibria in 3-hydroxy-4-methyl-4- pentenonitrile and 4-methyl-3-oxo-4-pentenonitrile have been studied. The first compound presents two possible theoretical tautomers, nitrile and ...
Cytosine methylation of sperm DNA in horse semen after cryopreservation
(2016-09-15)
Semen processing may contribute to epigenetic changes in spermatozoa. We have therefore addressed changes in sperm DNA cytosine methylation induced by cryopreservation of stallion semen. The relative amount of 5-methylcytosine ...
Determination of mercury methylation potential in the presence of peat organic matter
(2013-08-01)
Methylmercury (MeHg) is a neurotoxin pollutant that accumulates in organisms and biomagnifies along the trophic chain. It is formed by the transfer of a methyl group to inorganic mercury (Hg). This transformation, termed ...
DNA methylation analysis of tumor suppressor genes in monoclonal gammopathy of undetermined significance
(Springer, 2010-02)
Aberrant DNA methylation is considered an important epigenetic mechanism for gene inactivation. Monoclonal gammopathy of undetermined significance (MGUS) is believed to be a precursor of multiple myeloma (MM). We have ...
Surface tension and density of the binary mixtures toluene + methyl propanoate, toluene + methyl pentanoate, toluene + methyl heptanoate and toluene + methyl octanoate at atmospheric pressure and 288.15, 298.15 and 308.15 K
(Elsevier, 2017)
Surface tension and density were measured for the binary mixtures toluene + methyl propanoate, toluene + methyl pentanoate, toluene + methyl heptanoate and toluene + methyl octanoate at atmospheric pressure and ...
Direct short-wave photolysis of chlorpyrifos-methyl and chlorpyrifos-methyl oxon in the presence of cyclodextrins
(Springer, 2021-04)
Direct short-wave photolysis of chlorpyrifos-methyl (1) and chlorpyrifos-methyl oxon (2) was studied in the presence of native cyclodextrins (α–, β– and γ–CD) and randomly methylated β–CD (RAMEB). We used for irradiation ...
DNA and histone methylation in gastric carcinogenesis
(Baishideng Publishing Group Inc, 2013-02-28)
Epigenetic alterations contribute significantly to the development and progression of gastric cancer, one of the leading causes of cancer death worldwide. Epigenetics refers to the number of modifications of the chromatin ...