Results 21 to 30 of about 39,492 (224)
Oman Medical Journal, 2020 Objectives: Chronic lymphocytic leukemia (CLL) is characterized by the accumulation of apparently mature B-type lymphocytes in the lymphohematopoietic organs.
Morteza Hashemi +3 more
doaj +1 more source
The Number of Different Binary Functions Generated by NK-Kauffman Networks and the Emergence of Genetic Robustness [PDF]
, 2000 We determine the average number $ \vartheta (N, K) $, of \textit{NK}-Kauffman networks that give rise to the same binary function. We show that, for $ N \gg 1 $, there exists a connectivity critical value $ K_c $ such that $ \vartheta(N,K) \approx e ...
David Romero +2 more
core +3 more sources
Piaget e as teorias da evolução orgânica Piaget and the theories of organic evolution
Psicologia: 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
Stephane Leduc and the vital exception in the Life Sciences
, 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
Revista 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
Differential expression of conserved germ line markers and delayed segregation of male and female primordial germ cells in a hermaphrodite, the leech helobdella. [PDF]
, 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
Crossovers between epigenesis and epigenetics. A multicenter approach to the history of epigenetics (1901-1975) [PDF]
, 2014 The origin of epigenetics has been traditionally traced back to Conrad Hal Waddington's foundational work in 1940s. The aim of the present paper is to reveal a hidden history of epigenetics, by means of a multicenter approach.
Costa, R., Frezza, G.
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Flap Anatomies and Victorian Veils: Penetrating the Female Reproductive Interior
Gender &History, EarlyView.ABSTRACT This article examines the reappearance in the early nineteenth century of anatomical flapbooks in the context of obstetrical education in Britain, America and France. It asks why liftable paper flaps were reintroduced at this time after their disappearance from medical atlases in the eighteenth century.
Margaret Carlyle, Marcia D. Nichols
wiley +1 more source
Frontiers 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
Developmental Systems Theory as a Process Theory [PDF]
, 2018 Griffiths and Russell D. Gray (1994, 1997, 2001) have argued that the fundamental unit of analysis in developmental systems theory should be a process – the life cycle – and not a set of developmental resources and interactions between those resources ...
Griffiths, Paul Edmund, Stotz, Karola
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