Results 111 to 120 of about 41,814,406 (368)

Protonophore activity of short‐chain fatty acids induces their intracellular accumulation and acidification

open access: yesFEBS Letters, EarlyView.
The protonated form of butyrate, as well as other short‐chain fatty acids (SCFAs), is membrane permeable. In acidic extracellular environments, this can lead to intracellular accumulation of SCFAs and cytosolic acidification. This phenomenon will be particularly relevant in acidic environments such as the large intestine or tumor microenvironments ...
Muwei Jiang   +2 more
wiley   +1 more source

Strong twin events in mixed-state entanglement [PDF]

open access: yesarXiv, 2001
Continuing the study of mixed-state entanglement in terms of opposite-subsystem observables the measurement of one of which amounts to the same as that of the other (so-called twins), begun in a recent article, so-called strong twin events, which imply biorthogonal mixing of states, are defined and studied.
arxiv  

A stepwise emergence of evolution in the RNA world

open access: yesFEBS Letters, EarlyView.
How did biological evolution emerge from chemical reactions? This perspective proposes a gradual scenario of self‐organization among RNA molecules, where catalytic feedback on random mixtures plays the central role. Short oligomers cross‐ligate, and self‐assembly enables heritable variations. An event of template‐externalization marks the transition to
Philippe Nghe
wiley   +1 more source

Delayed Twin Observables Are They a Fundamental Concept in Quantum Mechanics? [PDF]

open access: yesarXiv, 2013
Opposite-subsystem twin events and twin observables, studied previously in the context of distant correlations, are first generalized to pure states of not-necessarily-composite systems, and afterwards they are further generalized to delayed twins that are due to unitary evolution of the quantum system. The versatile aspects of delayed twin observables
arxiv  

Twin Paternity; Twin Study Summaries; Why Twins Fascinate [PDF]

open access: yesTwin Research, 2004
An unusual case of uncertain twin paternity is presented. New research on inbred strains of mice may hold important clues for paternity testing of twins in the future. Next, four recent twin studies examining selected topics in autism, colour perception, language development and high-order pregnancy risk are reviewed.
openaire   +2 more sources

Associations between sleep-wake consolidation and language development in early childhood: a longitudinal twin study.

open access: yesSleep, 2011
STUDY OBJECTIVES The objectives were (1) to assess associations between sleep consolidation at 6, 18 and 30 months and language skills at 18, 30, and 60 months; and (2) to investigate the genetic/environmental etiology of these associations.
G. Dionne   +6 more
semanticscholar   +1 more source

Modifications in FLAP's second cytosolic loop influence 5‐LOX interaction, inhibitor binding, and leukotriene formation

open access: yesFEBS Letters, EarlyView.
The enzyme 5‐lipoxygenase (5‐LOX) catalyzes the first step in the biosynthesis of leukotrienes (LTs) involved in inflammatory pathophysiology. After cellular stimulation, 5‐LOX translocates to the nucleus, interacting with the 5‐LOX‐activating protein (FLAP) to form LTA4 from arachidonic acid (AA).
Erik Romp   +5 more
wiley   +1 more source

Quantitative variability of 342 plasma proteins in a human twin population

open access: yesMolecular Systems Biology, 2015
The degree and the origins of quantitative variability of most human plasma proteins are largely unknown. Because the twin study design provides a natural opportunity to estimate the relative contribution of heritability and environment to different ...
Yansheng Liu   +11 more
doaj   +1 more source

On the importance of prismatic/basal interfaces in the growth of (-1012) twins in hexagonal close-packed crystals [PDF]

open access: yesarXiv, 2013
The growth process of of (-1012) twins is studied in Magnesium using atomistic simulations. Two twin seeds are considered and both cases, a specific interface, which places face-to-face prismatic and basal planes, plays an important role. This interface has a low energy corresponding to a cusp in the orientation-dependent interface energy of a twinned ...
arxiv  

Twin Studies of ADHD

open access: yesPediatric Neurology Briefs, 1997
Genetic and environmental contributions to the inattention and impulsivity-hyperactivity associated with ADHD in 576 twin boys, aged 11 and 12 years, participants in the Minnesota Twin Family Study, were estimated by teacher ratings and maternal interviews in a report from the Department of Psychology and the Institute of Human Genetics, University of ...
openaire   +3 more sources

Home - About - Disclaimer - Privacy