Notícias · Recifes

Why taking a sick day depends on more than being sick

As winter illness spreads and households face cost-of-living pressure, many Australians cannot treat a sick day as a simple health decision. They may be too sick to work—but their job is too insecure to stay home. New research led by UTS shows the decision to take sick leave is h

Admin Recifes 15/07/2026 1

Harsh UVB bursts leave tadpoles with more DNA damage than longer exposure

Sunburn is a serious problem in the Southern Hemisphere, where depleted ozone provides less protection from UVB. Tadpoles are at particular risk because they are growing rapidly, making them vulnerable to UVB DNA damage. Niclas Lundsgaard of The University of Queensland (UQ), Aus

Admin Recifes 15/07/2026 1

A WRAP for biology's greasiest problem

Embedded in the boundary between the inside and outside of each cell are membrane proteins. They act as first responders by sensing signals, regulating which molecules enter and leave the cell, and enabling cells to quickly adapt to changes in their environment.

Admin Recifes 15/07/2026 1

Brown leaves before fall could signal lasting heat damage, researchers warn

Due to increasing heat and drought, forests are turning brown more often before autumn, when leaf senescence normally occurs. It is often unclear whether the trees are actively shedding foliage to avoid a breakdown in water transport or whether browning leaves are a consequence o

Admin Recifes 15/07/2026 1

If we force online platforms to control harmful content, where does that leave sex ed?

Most of us have attended sex ed classes in school. If we're lucky, we'll learn about consent and how to roll a condom onto a banana. But the classroom rarely goes into the specifics of sexual health and well-being—including what to do when a condom breaks.

Admin Recifes 15/07/2026 1

Country diary: I thought I was poking a hedgehog’s nest. I was wrong | Claire Stares

Langstone, Hampshire: Tree bumblebees are generally placid, but they’re not keen on someone prodding their home with the end of a bamboo caneLast summer, one by one, all our visiting hedgehogs fell victim to the road. For the first time in years, the hedgehog house beneath a purp

Admin Recifes 15/07/2026 1

Why the human body has so many design flaws

Many of the body's biggest flaws are the result of evolution building on old designs instead of starting over. Our spine, eyes, teeth, pelvis, and even certain nerves all reveal compromises that worked well enough for survival but still leave us prone to pain, injury, and disease

Admin Recifes 15/07/2026 1

Days of salted codfish and cabbage leaves are over: how climate crisis is shaping Tour de

Heatwaves have long been part of the Tour but temperatures now are pushing the riders to limit of human enduranceThe Tour de France and the heat of the midday sun are old bedfellows, going back long before an era when the biggest catastrophe of the Tour’s opening week was a major

Admin Recifes 15/07/2026 1

Climate change leaves northern tree swallows more vulnerable those in the southern US

Tree swallows in the northern U.S. and Canada face the greatest risk from climate change despite responding to temperature the same way as tree swallows in the southern U.S., according to a new study led by Cornell researchers that analyzed nearly 95,000 nests across five decades

Admin Recifes 15/07/2026 1

Evolutionary history shapes plant carbon storage strategies worldwide

Two types of carbohydrates are important to plants—structural carbohydrates (which form cell walls) and nonstructural carbohydrates (NSCs). The latter group represents plants' stored energy reserves, which can be used to survive cold or drought; regrow after damage; recover from

Admin Recifes 15/07/2026 1

Are we missing the universe's 'noosignatures?'

Astrobiology has long been split into two camps: a search for "biosignatures" and a search for "intelligence." These look for very different things, but they also leave a huge gap in between. It took 3.5 billion years for us to go from the first microbe to a civilization that sen

Admin Recifes 15/07/2026 1

Lawsuit claims Meta's layoff decisions were made by AI, not humans

Meta denies using AI to terminate workers with disabilities and medical problems. O recorte ajuda a contextualizar a pauta dentro de Tech.

Admin Recifes 15/07/2026 1

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