- Las lagartijas de turbera juegan a ‘piedra papel o tijera’ en su estrategia evolutiva.
Investigadores del Museo Nacional de Ciencias Naturales (MNCN-CSIC) han
demostrado experimentalmente por primera vez la teoría de la selección
sexual basada en el juego piedra papel o tijera. La dinámica ‘piedra
papel o tijera' (PPT) es un modelo que ofrece una explicación a cómo los
diferentes morfotipos [expresión visible de las variaciones del ADN] de
una población se mantienen sin que ninguno de ellos acabe
desapareciendo por completo. No existían evidencias científicas que
confirmaran este modelo, aunque es una teoría aceptada para especies en
las que diferentes generaciones no comparten espacio.
- Animal procedures show small rise.
The number of experimental procedures involving animals in Britain
showed a small rise last year, despite a pledge by the government to
reduce them.
- HIV re-emerges in 'cured' Mississippi girl.
A baby girl in the US born with HIV and believed cured after very early treatment has now been found to still harbour the virus.
- UK admits that air quality targets will be missed by 20 years.
The air quality in some of the UK's biggest cities is unlikely to meet EU standards before 2030, according to the government.
- Flexible nano-pixel screen patented.
Scientists have patented a new way to make ultra high-res displays that can bend and are thousandths of a mm thick.
- New in Science: A FREE section on strategies
against HIV, the relationship between income and spending, and linking
the magnetotail to the ionosphere.
- An isolated tribe in the Amazon region has
just taken a momentous and potentially tragic step.
Emerging from dense
rainforest, the group willingly approached a team of government
scientists on 29 June and made peaceful contact with the outside world.
It is not yet clear what prompted the tribe to end its long seclusion.
More information:
- Nature Outlook Epilepsy.
Although discussed and feared for millennia,
progress towards understanding epilepsy has been slow — even with help
from modern genetic and neurological analysis. Stigmatization of people
with epilepsy continues in certain parts
of the world and though lack of funding limits epilepsy research, new
ways to treat and manage seizures are on the horizon.
- Policy and Genomics.
See Burke et al. in Genetics in Medicine for
“The Translational Potential of Research on the Ethical, Legal and
Social Implications of Genomics" .
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