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Новости за 08.01.2025

«SFGate» (sfgate.com) 

More Americans jailed in Venezuela pose a test of Trump's deal-making foreign policy

As many as 10 Americans are behind bars in Venezuela as President Nicolas Maduro prepares to be sworn in for a third term. The arrests are another complication to the Venezuela challenges that await Donald Trump when he returns to the White House in less than two weeks. For senior foreign policy roles in his new administration, Trump has picked several architects of the “maximum pressure” campaign he pursued during his first term when he tried to oust Maduro. It's not clear whether Trump will pursue the same approach this time. Читать дальше...

Sciencedaily.com 

Herbivore or carnivore? A toolbox for the study of extinct reptiles

Evolution has resulted in the development of both herbivores and carnivores -- but how? What type of food did extinct vertebrates eat? And how can we gain insight into the diets of these creatures? In living animals, we can simply observe what they feed on today. In the case of extinct species, however, researchers rely on morphological or chemical information supplied by fossils. A team has now compiled a reference framework of isotope compositions indicating the type of diet for extant reptiles... Читать дальше...

Sciencedaily.com 

How electrical synapses fine-tune sensory information for better decisions

Scientists have taken a major step in understanding how animal brains make decisions, revealing a crucial role for electrical synapses in 'filtering' sensory information. The new research demonstrates how a specific configuration of electrical synapses enables animals to make context-appropriate choices, even when faced with similar sensory inputs.

Sciencedaily.com 

Potential new therapeutic targets for Huntington's disease

A research team has discovered intricate molecular mechanisms driving the RNA processing defects that lead to Huntington's disease and link HD with other neurodegenerative disorders such as amyotrophic lateral sclerosis, frontotemporal lobar dementia and Alzheimer's disease.

Sciencedaily.com 

Overcoming spasticity to help paraplegics walk again

Thanks to new high-frequency electrical stimulation that blocks spasticity, two paralyzed patients suffering from muscle stiffness after spinal cord injury benefit from rehabilitation protocols for walking again.

Sciencedaily.com 

Tiny microbe colonies communicate to coordinate their behavior

A new study reveals evidence of electrical signaling and coordinated behavior in choanoflagellates, the closest living relatives of animals. This elaborate example of cell communication offers key insights into the early evolution of animal multicellularity and nervous systems.