Zobrazeno 1 - 10
of 121
pro vyhledávání: '"CARLOS Y VALENZUELA"'
Publikováno v:
Biological Research, Vol 47, Iss 0, Pp 1-5 (2014)
BACKGROUND: The body site location of primary Malignant Melanoma (MM) has been correlated with prognosis and survival. Ethnic, genetics, sun exposure factors are related to the anatomical distribution of MM. Low and high socioeconomic strata in Chile
Externí odkaz:
https://doaj.org/article/da44c599818d40ee8298b43fd4285803
Autor:
Carlos Y Valenzuela
Publikováno v:
Biological Research, Vol 47, Iss 0, Pp 1-12 (2014)
BACKGROUND: We found a strong selective 3-sites periodicity of deviations from randomness of the dinucleotide (DN) distribution, where both bases of DN were separated by 1, 2, K sites in prokaryotes and mtDNA. Three main aspects are studied. I) the s
Externí odkaz:
https://doaj.org/article/6be2da97acf44e688c12e717d6ec1c1d
Autor:
Carlos Y Valenzuela
Publikováno v:
Biological Research, Vol 46, Iss 1, Pp 21-26 (2013)
The hypothesis that the vacation-study-expectancy scholar regime produces most of the monthly rhythm of the age at menarche (AaM) was tested. Studies on monthly menarche incidence (MI) refuted climatic factors as a main factor in this rhythm, and ind
Externí odkaz:
https://doaj.org/article/bfb62a592a294adaa725b6fdb3a3064c
Autor:
Carlos Y Valenzuela
Publikováno v:
Biological Research, Vol 46, Iss 2, Pp 101-119 (2013)
The Neutral Theory of Evolution (NTE) proposes mutation and random genetic drift as the most important evolutionary factors. The most conspicuous feature of evolution is the genomic stability during paleontological eras and lack of variation among ta
Externí odkaz:
https://doaj.org/article/c5e65bd44ba7435eadfdfebde5688c66
Publikováno v:
Biological Research, Vol 45, Iss 2, Pp 177-182 (2012)
We analyzed the in vitro effects of the anti-tumoral drugs doxorubicin, cytosine arabinoside and hydroxyurea on the G2-prophase checkpoint in lymphocytes from healthy individuals. At biologically equivalent concentrations, the induced DNA damage acti
Externí odkaz:
https://doaj.org/article/fc31eab1890c444985edce3c578998d4
Autor:
Carlos Y Valenzuela
Publikováno v:
Biological Research, Vol 44, Iss 4, Pp 393-404 (2011)
In three cities of Chile (Santiago, Valparaiso, Valdivia) the A allele and phenotype (ABO blood group) are more frequent in the higher socioeconomic strata (SES) and the O allele and phenotype are in the lower ones. This constitutes a structured soci
Externí odkaz:
https://doaj.org/article/080d8f7a8c7d4abeb02f36996fd6729b
Autor:
Carlos Y Valenzuela
Publikováno v:
Biological Research, Vol 44, Iss 3, Pp 283-293 (2011)
We found a consistent 3-site periodicity of the X²9 values for the heterogeneity of the distribution of the second base in relation to the first base of dinucleotides separated by 0 (contiguous), 1, 2, 3 ... 17 (K) nucleotide sites in Drosophila mtD
Externí odkaz:
https://doaj.org/article/369e6cc3bfb3469283cf522089f94611
Autor:
CARLOS Y VALENZUELA
Publikováno v:
Revista Chilena de Historia Natural, Vol 83, Iss 4, Pp 497-500 (2010)
Until now, there are three evolutionary models: I) The Synthetic Theory of Evolution (STE) also named as the Neo-Darwinian model; II) The Neutral Theory of Evolution (NTE) with its daughter the Nearly-Neutral Theory of Evolution (NNTE); III) The Theo
Externí odkaz:
https://doaj.org/article/47ca4fc2e1fd43d5b8ef007721c6de28
Autor:
Carlos Y Valenzuela
Publikováno v:
Biological Research, Vol 43, Iss 3, Pp 347-356 (2010)
Fraternal birth order (FBO) appears as a prenatal cause of 15% of homosexual males (gays) through mnemonic maternal anti-male factors. Non-right-handed men seem to be protected from homosexuality. Four hypotheses are proposed: (1) androgenic factors
Externí odkaz:
https://doaj.org/article/132d2c0ff65f443b9e49fa9c38d0e852
Autor:
Carlos Y Valenzuela
Publikováno v:
Biological Research, Vol 43, Iss 4, Pp 481-486 (2010)
Analysis for the homogeneity of the distribution of the second base of dinucleotides in relation to the first, whose bases are separated by 0, 1, 2,... 21 nucleotide sites, was performed with the VIH-1 genome (cDNA), the Drosophila mtDNA, the Drosoph
Externí odkaz:
https://doaj.org/article/961b10fb88eb4a1e9649c92c81a492e0