نتایج جستجو برای: epigenesis
تعداد نتایج: 174 فیلتر نتایج به سال:
The term sociotype has been introduced to describe the dynamic relationship of an individual with his/her social environment throughout life. The sociotype is a conceptual framework to highlight, in addition to bio-medical pathways, the psycho-social and environmental factors necessary to understand responses to life stresses and patient self-management for chronic illness. The sociotype intera...
This article addresses the ability of Parallel Distributed Processing (PDP) networks to generate stagewise cognitive development in accordance with Piaget’s theory of cognitive epigenesis. We carried out a replication study of the simulation experiments by McClelland (1989) and McClelland and Jenkins (1991) in which a PDP network learns to solve balance scale problems. In objective tests motiva...
The modern educational process reform considers a competence approach as way to achieve the expected learning outcomes. Following in 2017 Ministry of Education and Science Ukraine updated curricula for general secondary education institutions. main change is follows: focus was shifted from content point outcomes part widely discussed environment. At same time, issue achieving while studying spe...
meanings for different people. Epigenetics is an extreme case, because it has several meanings with independent roots. To Conrad Waddington, it was the study of epigenesis: that is, how genotypes give rise to phenotypes during development. By contrast, Arthur Riggs and colleagues defined epigenetics as “the study of mitotically and/or meiotically heritable changes in gene function that cannot b...
DAVIDA RUBIN (comp.), Sir Kenelm Digby F.R.S. (1603-1665): a bibliography based on the collection of K. Garth Huston, Sr., M.D., San Francisco, Jeremy Norman, 1991, pp. xvi, 130, illus., $95.00 (0-930405-29-3). Having forgiven his significant contribution to quackery-the promotion of an infamous "powder of sympathy" that healed without coming into contact with the wound-historians in this centu...
Bio-inspired electronic circuits have the potential to address some of the shortcomings of conventional electronic circuits, such as lack of applicability to ill-defined problems, of robustness, or of adaptivity to unexpectedly changing environments. Bio-inspired circuits are designed by taking inspiration from principles observed in biology. The evolution of biological organisms, their develop...
Whether the mechanisms proposed by Darwin and others suffice to explain all details of the achievements of biological evolution remains open. Variation in heritable features can occur spontaneously, and Darwinian natural selection can explain why some new variants survive longer than others. But that does not satisfy Darwin’s critics and also worries supporters who understand combinatorial sear...
The aim of the Royaumont Symposium was to review various dynamic aspects of adaptive changes in functional connectivity, expressed in cortical networks during development, learning, and possibly during recognition and cognitive processing. The link between the various experimental and theoretical models was the comparison of cellular and molecular mechanisms that could be involved in the up- an...
Embryonic inheritance of the chromatin organisation of the imprinted H19 domain in mouse spermatozoa
Insulin-like growth factor 2 (Igf 2) and H19 genes are oppositely imprinted and as such have been most extensively studied imprinted genes both genetically and at the molecular level. Imprints of the H19 gene, being established during spermatogenesis, are epigenetically transmitted to the somatic cells of the embryo. Current hypotheses attempting to explain the allele-specific silence of the H1...
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