However, only a small proportion has been replicated across studies, and the prevalence of positive selection as a mechanism
of adaptive change in humans remains controversial.
The continuing health of a family organism depends, to a considerable degree, on whether it can make the
necessary adaptive changes as it moves from stage to stage.
We are now able to look into the brain of an animal and see how nerve cell connections are made or broken, and how that relates to learning or
other adaptive changes.
Effective professional learning integrates research about individual, organization, technical, and
adaptive change through supporting and sustaining implementation for long - term change.
Joshua Starr's chapter, «Organizing Adult Learning
for Adaptive Change Management: A Systems Approach,» suggests that professional learning communities (PLCs) can be effective forums for collaboration, given they include the content and structures necessary to build teachers» collective knowledge and skills.
The effects of these deleterious mutations in humans and chimpanzees are probably either inconsequential or else they are compensated
by adaptive changes elsewhere in the genome, Keightley says.
«The absence of EBB1 during dormancy allows the tree to progress through the physiological, developmental and
adaptive changes leading to dormancy,» said Busov, «while the expression of EBB1 in specific cell layers prior to bud - break enables reactivation of growth in the cells that develop into shoots and leaves, and re-entry into the active growth phase of the tree.»
Adapted from «Organizing adult learning for
adaptive change management: A systems approach» in Teaching in Context: The Social Side of Education Reform, edited by Esther Quintero (Harvard Education Press, 2017).
It was hypothesized that higher levels of T1 marital adjustment and lower levels of T1 family conflict would be associated with adaptive parenting at T1, as well
as adaptive changes in parenting during the adolescent transition.
Macroevolution posed a problem to Darwin because his principle of descent with modification predicts gradual transitions between small -
scale adaptive changes in populations and these larger - scale phenomena, yet there is little evidence for such transitions in nature.
They identified a cluster of
adaptive changes unique to the TRIM5 proteins of a subset of African monkeys — the Cercopithecinae, which include macaques, mangabeys, and baboons — that suggests that ancestral lentiviruses closely related to modern SIVs began colonizing primates in Africa as far back as 11 - 16 million years ago.
If anything the evidence indicates that the great cognitive achievement in human evolution was cortical plasticity, which allows for
rapidly adaptive changes to the environment, both across evolutionary time and [across] individual lifetimes.
«Now that evidence has been provided, predictions about the future ocean definitely have to take
such adaptive changes into account.»
«We found that smooth muscle cells in the arteries of the diaphragm do
undergo adaptive changes in response to exercise training,» Laughlin said.
«This is a pioneering contribution that not only documents structural brain changes linked to pregnancy but also compellingly offers evidence that suggests these
represent adaptive changes,» he wrote in an e-mail.
This mutation in the Indian Ocean lineage occurred through a
single adaptive change in the virus» genetic code that alters one protein in the envelope surrounding the virus.
His Ph.D. research at Stanford focused on computer simulations of how mechanical stresses affect bone growth and
adaptive changes around implants.
They estimated «the proportion of
adaptive changes between human and chimpanzee to be 10.4 to 12.8 percent,» similar to previous estimates using entirely different approaches.
On islands off the coast of Florida, scientists uncover
swift adaptive changes among Carolina anole populations, whose habitats were disturbed by the introduction of another lizard species.
Slow -
onset adaptive changes that arise from sustained antidepressant treatment, such as enhanced adult hippocampal neurogenesis and increased trophic factor expression, play a key role in the
Some 20 upper Paleolithic sites (ranging from 42 to 30 kya) in southern Siberia, below 55 ° latitude,
demonstrate adaptive changes in hominid technology (Goebel 1999:213).
«Addiction occurs
when adaptive changes in the brain cause symptoms of tolerance, sensitisation, dependence and withdrawal,» (Leuenberger, 2006).
Dulloo AG, Girardier
L. Adaptive changes in energy expenditure during refeeding following low - calorie intake: evidence for a specific metabolic component favoring fat storage.
Whereas animal studies have shown that pregnancy is associated with apparently long - lasting anatomical brain changes — accompanied
by adaptive changes, such as rodent mothers becoming better at foraging for food — virtually no studies have drilled down on anatomical changes in the human brain during pregnancy.
Adaptive changes in adipocyte gene expression differ in AKR / J and SWR / J mice during diet induced obesity.
He led a journey of «
adaptive change,» to use Heifetz's term — a journey that involves loss and risk, change of hearts and minds, loss of known worlds and ways, and an introduction to the unknown.
On a molecular level, this can happen due to random mutation unrelated to
adaptive changes; see long branch attraction.
«MCT2 expression was significantly lower in the hippocampus of type 2 diabetic rats,» Soya says, «dysregulated MCT2 - mediated neuronal uptake of lactate is a possible aetiology of memory dysfunction in type 2 diabetes, and that elevated hippocampal glycogen may be
an adaptive change to compensate for the decreased lactate utilization.»
It is becoming increasingly clear that sleep plays an important role in
these adaptive changes.
«In addition, we believe that the enlarged ovipositor was a secondary acquisition — comparable to
the adaptive change in the morphology of the teeth in mammals, which was also initiated in response to an alteration in diet.»
Kingsley's research has shown that
these adaptive changes are often driven by changes in the regulatory regions that surround and control gene expression, rather than within the coding regions of the genes themselves.
Thus, these data were insufficient to describe
the adaptive changes in autophagy - linked molecules within sarcopenic muscle.
But he cautioned against overinterpreting changes in the brain as signs of injury or damage, when they could instead be indicators of healing or
adaptive changes.
The concept of natural selection has remarkable power for explaining directional and
adaptive changes.
If
their adaptive changes are significant enough, those survivors may also constitute a new species.
Adaptive changes in adipocyte gene expression differ in AKR / J and SWR / J mice during diet - induced obesity.
The mutant microbes have not remained idle since
their adaptive changes.
In the Aug. 1 Science, scientists describe the string of
adaptive changes and shrinkages that led to birds.