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Tech Xplore / GPT‑5.2: OpenAI beefs up GPT models in AI race with Google

OpenAI released its latest artificial intelligence models on Thursday, shrugging off worries about how it will cash in on massive spending in its technology race with Google.

Dec 12, 2025 in Machine learning & AI
Phys.org / A new traveling-wave Josephson amplifier with built-in reverse isolation

Traveling-wave parametric amplifiers (TWPAs) are electronic devices that boost weak microwave signals (i.e., electromagnetic waves with frequencies typically ranging between 1 and 100 GHz). Recently, many engineers have been ...

Dec 9, 2025 in Physics
Phys.org / Hidden patterns of isolation and segregation found in all American cities

A comprehensive analysis of 383 U.S. cities reveals a striking pattern: most have rings of isolation in suburban areas and segregated pockets near the urban core, that are shaped by race, wealth, and proximity to downtown, ...

Dec 12, 2025 in Other Sciences
Phys.org / Inequalities exist in even the most egalitarian societies, anthropologists find

There is no such thing as a society where everyone is equal. That is the key message of new research that challenges the romantic ideal of a perfectly egalitarian human society.

Dec 8, 2025 in Other Sciences
Phys.org / Polar bears may be adapting to survive warmer climates, says study

New research reveals a link between rising temperatures and changes in polar bear DNA, which may be helping them adapt and survive in increasingly challenging environments.

Dec 11, 2025 in Biology
Medical Xpress / Early childhood adversity can disrupt brain networks and result in lifelong health burden

Scientists have known for some time that people who experience early childhood adversity are more prone to developing health and behavioral issues in adulthood, but the brain mechanisms behind these disparities are not well ...

Dec 11, 2025 in Health
Phys.org / Global measures consistently underestimate food insecurity: 1 in 5 who suffer from hunger may go uncounted

International humanitarian aid organizations rely on analyses from the Integrated Food Security Phase Classification (IPC) system, a global partnership that monitors and classifies the severity of food insecurity to help ...

Dec 12, 2025 in Earth
Medical Xpress / 'Sloth fever' unlikely to spread via mosquitoes in southeastern US, say researchers

In 2024, "sloth fever" hit the news cycle as a new public health threat: The virus was found in people who'd recently traveled to Cuba, and the serious health risks associated with the disease prompted concern about whether ...

Medical Xpress / New immunotherapy targets for glioblastoma identified by mapping cell interactions

Glioblastoma is the most common form of brain cancer in adults, and its consequences are usually quick and fatal. After receiving standard-of-care treatment (surgery followed by radiation and chemotherapy), fewer than half ...

Dec 12, 2025 in Oncology & Cancer
Phys.org / Record-breaking cosmic explosion challenges astronomers' understanding of gamma-ray bursts

Astronomers at the University of North Carolina at Chapel Hill have helped uncover new clues about the longest-lasting cosmic explosion ever observed, a gamma-ray burst that lasted nearly seven hours. The event, known as ...

Dec 8, 2025 in Astronomy & Space
Medical Xpress / South Carolina places 254 in quarantine as measles cases surge

South Carolina health officials say a measles outbreak is growing amid holiday travel and low vaccination rates, and they warn the spread could continue for weeks.

Phys.org / Why SpaceX IPO plan is generating so much buzz

More than 20 years after founding SpaceX, the record-breaking company that transformed the global space industry, Elon Musk is planning to take the enterprise public.

Dec 13, 2025 in Astronomy & Space