Results 51 to 60 of about 37,902 (285)

Altered expression of DNMT3A gene in B-cell acute lymphoblastic leukemia by mercaptopurine

open access: yesفصلنامه دانشگاه علوم پزشکی جهرم, 2021
Introduction: Current medications used for acute lymphoblastic leukemia (ALL) such as mercaptopurine target molecular factors involved in its onset and progression including DNA methyltransferases (DNMTs) because these enzymes are implicated in ...
Seyedhossein Hekmatimoghaddam   +4 more
doaj  

Epigenetic regulation of Parkinson’s disease risk variant GPNMB cg17274742 methylation by sex and exercise from Taiwan Biobank

open access: yesFrontiers in Aging Neuroscience, 2023
BackgroundParkinson’s disease (PD) is a complex neurodegenerative disease with an elusive etiology that involves the interaction between genetic, behavioral, and environmental factors.
Yen-Chung Chen   +10 more
doaj   +1 more source

Piaget e as teorias da evolução orgânica Piaget and the theories of organic evolution

open access: yesPsicologia: Reflexão e Crítica, 2008
As teorias da evolução orgânica, principalmente a de Darwin, tiveram enorme impacto nas ciências humanas, notadamente na psicologia. Piaget importou da biologia diversas formulações teóricas que fundamentaram as suas teorias sobre o desenvolvimento ...
Argus Vasconcelos de Almeida   +1 more
doaj   +1 more source

Factors and mechanisms of productive secondary reservoirs formation in deep-lying oil and gas complexes. Article 2. Carbonate minerals – lithogenetic and tectonophysical indicators of the secondary reservoirs conditions formation at large depths

open access: yesМінеральні ресурси України
Authigenic carbonate minerals, together with clayey matter, play a leading role in the cementation of terrigenous phaneromorphic (granular) rocks. Studying the regularities of carbonate authigenesis is of primary importance for oil and gas geology.
O. Yu. Lukin, I. P. Gafych, Ya. V. Lukin
doaj   +1 more source

Cell-free fetal DNA in maternal plasma and noninvasive prenatal diagnosis DNA fetal libre en el plasma materno y diagnóstico prenatal no invasivo DNA livre fetal em plasma materno e diagnóstico pré-natal não invasivo

open access: yesRevista Latino-Americana de Enfermagem, 2006
The noninvasive nature of the detection of fetal DNA in the maternal circulation represents the greatest advantage over the conventional methods of prenatal diagnosis.
Ester Silveira Ramos
doaj   +1 more source

Biological Information, Causality and Specificity - an Intimate Relationship [PDF]

open access: yes, 2017
In this chapter we examine the relationship between biological information, the key biological concept of specificity, and recent philosophical work on causation.
Griffiths, Paul E., Stotz, Karola
core   +2 more sources

The Asymptotic Number of Attractors in the Random Map Model [PDF]

open access: yes, 2002
The random map model is a deterministic dynamical system in a finite phase space with n points. The map that establishes the dynamics of the system is constructed by randomly choosing, for every point, another one as being its image.
Abramowitz M   +21 more
core   +2 more sources

Aristotle on Epigenesis [PDF]

open access: yes, 2018
It has become somewhat of a platitude to call Aristotle the first epigenesist insofar as he thought form and structure emerged gradually from an unorganized, amorphous embryo. But modern biology now recognizes two senses of “epigenesis”.
Henry, Devin
core  

Stephane Leduc and the vital exception in the Life Sciences

open access: yes, 2016
Embryogenesis, the process by which an organism forms and develops, has long been and still is a major field of investigation in the natural sciences.
Clement, Raphael
core   +2 more sources

Differential expression of conserved germ line markers and delayed segregation of male and female primordial germ cells in a hermaphrodite, the leech helobdella. [PDF]

open access: yes, 2013
In sexually reproducing animals, primordial germ cells (PGCs) are often set aside early in embryogenesis, a strategy that minimizes the risk of genomic damage associated with replication and mitosis during the cell cycle.
Cho, Sung-Jin   +2 more
core   +2 more sources

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