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Medical Xpress / Opioid overdose survivors face higher risk of death than previously thought, study finds

After an emergency department visit for an opioid overdose, 9% of individuals died and 21% experienced a repeat opioid overdose in the following year, according to a new study from ICES and the Center for Addiction and Mental ...

1 hour ago
Phys.org / Urban trees cool the world's cities more than we thought—but we can't rely on them alone

Cities and towns are usually 1–3°C hotter than the surrounding countryside, because asphalt, concrete and brick absorb heat from the sun and radiate it slowly. Some cities can be as much as 7°C hotter. This effect is known ...

1 hour ago
Phys.org / Sexual arousal can lead to tunnel vision, blinding people to rejection cues

Sexual arousal can lead to "tunnel vision" that makes it more difficult to recognize when someone is just not that into you, according to new research in Personality and Social Psychology Bulletin.

3 hours ago
Phys.org / Deforestation lessens Amazon rainfall—and climate change hastens that process, study finds

Climate change makes the southern Amazon's rain increasingly sensitive to deforestation, a new study finds. Clearing large areas of forest can trigger severe and lasting reductions in rainfall regardless of climate, but as ...

3 hours ago
Phys.org / Archaeologists unearth evidence of dogs being traded within Mayan societies

A University of Calgary archaeologist has found evidence that the Classic Period Maya were trading live dogs over long distances between the northern Yucatan peninsula and central Chiapas regions.

2 hours ago
Medical Xpress / Turning up the volume on macrophage-driven immune responses

As part of the body's first line of defense against foreign invaders, macrophages play an integral role in the innate immune system. However, the ability of macrophages to interpret and respond to diverse danger signals remains ...

2 hours ago
Phys.org / Transcribing speech is never neutral—it shapes power and bias

Earlier this year I gave a talk about my research at Oxford's All Souls College, and worked with a chef to design an accompanying menu.

1 hour ago
Phys.org / Chilean wasp named in honor of Sir David Attenborough's 100th birthday

Scientists from the Natural History Museum, London have described a new genus and species of parasitic wasp found within the Museum's collections, and named it as a birthday present for Sir David Attenborough.

5 hours ago
Tech Xplore / Your conversations with AI may not be as private as you think

A study conducted by researchers at IMDEA Networks Institute has revealed that ChatGPT (OpenAI), Claude (Anthropic), Grok, and Perplexity AI use different types of trackers from Meta, Google, TikTok and other companies, potentially ...

2 hours ago
Medical Xpress / What is hantavirus? Symptoms, transmission and treatment explained

As an Atlantic cruise ship remains isolated off the South African coast due to a deadly hantavirus outbreak, the world watches with anticipation to learn more about this uncommon but dangerous infectious disease.

3 hours ago
Phys.org / Tree communities shape hidden energy flows under European forests

Mixing tree species can lead to better growth in the forest—at least above ground. A new study published in Nature shows that mixed forests had lower activity in the complex belowground ecosystems than previously thought. ...

2 hours ago
Medical Xpress / What to know about hantavirus, the illness linked to a cruise ship outbreak

An outbreak aboard a cruise ship of a rare rodent-borne illness called hantavirus has left three passengers dead and sickened others, but global health officials say the risk to the general public remains low because the ...

1 hour ago