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Science News for June 22, 1999


Jet contrails to be significant climate factor by 2050

A new study predicts that jet contrails will become a significant climate factor by 2050, causing a warming of the Earth's atmosphere. Contrails are expected to increase in coverage over Europe and Asia, with potential temperature increases reaching up to 0.7 watts per square meter.

SourceAmerican Geophysical Union·JournalGeophysical Research Letters·DateJun 22, 1999

Rats operate robotic arm via brain activity

Researchers developed a method to record brain signals onto electrode arrays in rats, enabling them to control a robotic arm without muscle movement. This achievement demonstrates the likelihood of implanting electrodes into human brains to control prosthetic devices.

SourceDuke University·JournalNature Neuroscience·DateJun 22, 1999

Protein essential for making steroids turns out to be a "molten globule"

The StAR protein plays a key role in the steroid-making system by partially unfolding to form a 'molten globule' conformation that enables it to work inside cells. This flexible state lowers energy required for channel opening in mitochondrial membrane, acting as an on/off switch for cholesterol transport.

SourceUniversity of California - San Francisco·JournalProceedings of the National Academy of Sciences·DateJun 22, 1999
Sky-Watcher EQ6-R Pro Equatorial Mount

Sky-Watcher EQ6-R Pro Equatorial Mount provides precise tracking capacity for deep-sky imaging rigs during long astrophotography sessions.

Brain region used in face recognition is active in new object recognition

Researchers found that the brain region critical for face perception is also active when humans become expert in recognizing novel objects, contradicting the idea of separate brain mechanisms. The study used functional magnetic resonance imaging to test adults on identifying greebles, a class of complex three-dimensional objects.

SourceBrown University·JournalNature Neuroscience·DateJun 22, 1999

Gladstone/UCSF team discovers interaction of two brain proteins may be key factor in development of Alzheimer's disease

A team of scientists has found a critical interaction between two brain proteins that could help explain the death of nerve cells in Alzheimer's disease. The discovery reveals that normal APP provides a protective function against cell death, while mutant forms do not.

SourceUniversity of California - San Francisco·JournalProceedings of the National Academy of Sciences·DateJun 22, 1999
Apple AirPods Pro (2nd Generation, USB-C)

Apple AirPods Pro (2nd Generation, USB-C) provide clear calls and strong noise reduction for interviews, conferences, and noisy field environments.

New mechanism for regulating gene expression discovered

Researchers have identified a new mechanism for regulating gene expression that could help scientists understand developmental birth defects and other medical conditions. The TRA-1 protein plays a critical role in binding to DNA and controlling mRNA movement, which affects protein production during embryo development.

SourceNorthwestern University·JournalNature·DateJun 22, 1999