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Electric fields steered nanoparticles through a liquid-filled maze – this new method could improve drug delivery and purification systems

  • Written by Daniel K. Schwartz, Professor of Chemical and Biological Engineering, University of Colorado Boulder
imageNanoparticles move through materials like tiny cars through a maze. OsakaWayne Studios/Moment via Getty Images

In the home, the lab and the factory, electric fields control technologies such as Kindle displays, medical diagnostic tests and devices that purify cancer drugs. In an electric field, anything with an electrical charge – from an...

Read more: Electric fields steered nanoparticles through a liquid-filled maze – this new method could improve...

Blame the shutdown on citizens who prefer politicians to vanquish their opponents rather than to work for the common good

  • Written by Robert B. Talisse, W. Alton Jones Professor of Philosophy, Vanderbilt University
imageWho is really responsible for the longest government shutdown in history?iStock/Getty Images Plus

The United States was founded on the idea that government exists to serve its people. To do this, government must deliver services that promote the common good. When the government shuts down, it fails to meet its fundamental purpose.

While government...

Read more: Blame the shutdown on citizens who prefer politicians to vanquish their opponents rather than to...

A bold new investment fund aims to channel billions into tropical forest protection – one key change can make it better

  • Written by Jason Gray, Environmental Attorney, Emmett Institute on Climate Change and the Environment, University of California, Los Angeles
imageCattle, the No. 1 cause of tropical deforestation, roam on tropical forest land that was stripped bare in Acre, Brazil.AP Photo/Eraldo Peres

The world is losing vast swaths of forests to agriculture, logging, mining and fires every year — more than 20 million acres in 2024 alone, roughly the size of South Carolina.

That’s bad news...

Read more: A bold new investment fund aims to channel billions into tropical forest protection – one key...

Canada loses its official ‘measles-free’ status – and the US will follow soon, as vaccination rates fall

  • Written by Kathryn H. Jacobsen, William E. Cooper Distinguished University Chair, Professor of Health Studies, University of Richmond
imageCanada eliminated measles in 1998 but had a major outbreak in 2025.jure/iStock via Getty Images Plus

In the wake of a measles outbreak in Canada that has infected thousands of people over the past year, an international health agency revoked the country’s measles-free status on Nov. 10, 2025.

The Pan American Health Organization, which serves...

Read more: Canada loses its official ‘measles-free’ status – and the US will follow soon, as vaccination...

What America’s divided and tumultuous politics of the late-19th century can teach us

  • Written by Robert A. Strong, Senior Fellow, Miller Center, University of Virginia
imageCan today's divided America learn something from the divisions of the past?zimmytws, iStock/Getty Images Plus

People trying to understand politics in the United States today often turn to history for precedents and perspective. Are our current divisions like the ones that preceded the American Revolution or the Civil War? Did the dramatic events of...

Read more: What America’s divided and tumultuous politics of the late-19th century can teach us

The ‘supercenter’ effect: How massive, one-stop retailers fuel overconsumption − and waste

  • Written by Suvrat Dhanorkar, Associate Professor, Georgia Institute of Technology
image'Big-box' supercenters can contribute to overpurchasing by shoppersFrederic J. Brown/AFP via Getty Images

Imagine walking out of a Walmart, Target or Costco. As you push your large shopping cart to your car, you ask yourself: Did I really need all that stuff?

The answer is you probably didn’t.

In a recent study, my co-authors Lina Wang, Sungho...

Read more: The ‘supercenter’ effect: How massive, one-stop retailers fuel overconsumption − and waste

What does ‘pro-life’ mean? There’s no one answer – even for advocacy groups that oppose abortion

  • Written by Anne Whitesell, Associate Professor of Political Science, Miami University
imagePope Leo XIV arrives for his weekly general audience in St. Peter's Square, at the Vatican, on Oct. 22, 2025.AP Photo/Andrew Medichini

As the first American pope, Leo XIV has largely avoided speaking out about domestic politics in the United States.

He waded into controversy, however, by commenting on the Archdiocese of Chicago’s plan to honor...

Read more: What does ‘pro-life’ mean? There’s no one answer – even for advocacy groups that oppose abortion

Why do people have baby teeth and adult teeth?

  • Written by Christina Nicholas, Associate Professor of Orthodontics and of Anthropology, University of Illinois Chicago

Curious Kids is a series for children of all ages. If you have a question you’d like an expert to answer, send it to curiouskidsus@theconversation.com.

Why do people have two sets of teeth? – Ivy D., age 11, Hyde Park, New York

Teeth help animals bite and chew food. Meat-eating carnivores tend to have sharp teeth to sink into their prey,...

Read more: Why do people have baby teeth and adult teeth?

Turning motion into medicine: How AI, motion capture and wearables can improve your health

  • Written by Azarang Asadi, Data Scientist, Oklahoma State University
imageThe use of motion data is expanding from fitness and rehabilitation to general health.Todor Tsvetkov/E+ via Getty Images

People often take walking for granted. We just move, one step after another, without ever thinking about what it takes to make that happen. Yet every single step is an extraordinary act of coordination, driven by precise timing...

Read more: Turning motion into medicine: How AI, motion capture and wearables can improve your health

Allen Iverson’s 2001 Sixers embodied Philly’s brash, gritty soul − and changed basketball culture forever

  • Written by Jared Bahir Browsh, Assistant Teaching Professor of Critical Sports Studies, University of Colorado Boulder

It’s unusual for a professional sports franchise to plan a yearlong celebration for a team that didn’t win a championship.

But it is also rare that a group of players represents the vibe and culture of a city so accurately as the Philadelphia 76ers did back in 2001.

Throughout the 2025-2026 NBA season, the Sixers will honor the 25th...

Read more: Allen Iverson’s 2001 Sixers embodied Philly’s brash, gritty soul − and changed basketball culture...

More Articles ...

  1. What AI earbuds can’t replace: The value of learning another language
  2. Trump was already cutting low-income energy assistance – the shutdown is making things worse as cold weather arrives
  3. James Watson exemplified the best and worst of science – from monumental discoveries to sexism and cutthroat competition
  4. What to know as hundreds of flights are grounded across the US – an air travel expert explains
  5. National 211 hotline calls for food assistance quadrupled in a matter of days, a magnitude typically seen during disasters
  6. Seashells from centuries ago show that seagrass meadows on Florida’s Nature Coast are thriving
  7. Pennsylvania counties face tough choices on spending $2B opioid settlement funds
  8. FDA recall of blood pressure pills due to cancer-causing contaminant may point to higher safety risks in older generic drugs
  9. Always watching: How ICE’s plan to monitor social media 24/7 threatens privacy and civic participation
  10. House speaker’s refusal to seat Arizona representative is supported by history and law
  11. Overwhelm the public with muzzle-velocity headlines: A strategy rooted in racism and authoritarianism
  12. Who gets SNAP benefits to buy groceries and what the government pays for the program – in 5 charts
  13. AI could worsen inequalities in schools – teachers are key to whether it will
  14. Anxiety over school admissions isn’t limited to college – parents of young children are also feeling pressure, some more acutely than others
  15. Supreme Court soon to hear a religious freedom case that’s united both sides of the church-state divide
  16. Chatbots don’t judge! Customers prefer robots over humans when it comes to those ’um, you know’ purchases
  17. Brewery waste can be repurposed to make nanoparticles that can fight bacteria
  18. The unraveling of workplace protections for delivery drivers: A tale of 2 workplace models
  19. Why does your doctor seem so rushed and dismissive? That bedside manner may be the result of the health care system
  20. How to keep dementia from robbing your loved ones of their sense of personhood – tips for caregivers
  21. Trump’s White House renovations fulfill Obama’s prediction, kind of
  22. A brief history of congressional oversight, from Revolutionary War financing to Pam Bondi
  23. How the US cut climate-changing emissions while its economy more than doubled
  24. Why people don’t demand data privacy – even as governments and corporations collect more personal information
  25. HIV knows no borders, and the Trump administration’s new strategy leave Americans vulnerable – an HIV-prevention expert explains
  26. Customers can become more loyal if their banks solve fraud cases, researchers find
  27. The beauty backfire effect: Being too attractive can hurt fitness influencers, new research shows
  28. Bad Bunny and Puerto Rican Muslims: How both remix what it means to be Boricua
  29. The White Stripes join the Rock Roll Hall of Fame − their primal sound reflects Detroit’s industrial roots
  30. China’s new 5-year plan: A high-stakes bet on self-reliance that won’t fix an unbalanced economy
  31. Zohran Mamdani’s transformative child care plan builds on a history of NYC social innovations
  32. Dick Cheney’s expansive vision of presidential power lives on in Trump’s agenda
  33. Declining union membership could be making working-class Americans less happy and more susceptible to drug overdoses
  34. Singles’ Day is a $150B holiday in China. Here’s why I think ‘11/11’ will catch on in the US
  35. Diane Keaton’s $5M pet trust would be over the top if reports prove true – here’s how to ensure your beloved pet is safe after you are gone
  36. Oklahoma tried out a test to ‘woke-proof’ the classroom. It was short-lived, but could still leave a mark
  37. America’s teachers are being priced out of their communities − these cities are building subsidized housing to lure them back
  38. SETI’s ‘Noah’s Ark’ – a space historian explores how the advent of radio astronomy led to the USSR’s search for extraterrestrial life
  39. 2 ways you can conserve the water used to make your food
  40. Congress has been dodging responsibility for tariffs for decades – now the Supreme Court will decide how far presidents can go alone
  41. Signatures meant more in Mesopotamia than they do now − what cylinder seals say about ancient and modern life
  42. Trump is changing student loan forgiveness rules – barring some public workers from getting relief, but resuming it for others
  43. Strict school vaccine mandates work, and parents don’t game the system − new research
  44. Amateur hour in Congress: How political newcomers fuel gridlock and government shutdowns
  45. The military’s diversity rises out of recruitment targets, not any ‘woke’ goals
  46. Why can’t every country get along with each other? It comes down to resources, inequality and perception
  47. Private equity firms are snapping up mobile home parks − and driving out the residents who can least afford to lose them
  48. Investors prefer ‘I’ over ‘we’ when CEOs apologize
  49. Bangladesh’s accession to the UN Water Convention has a ripple effect that could cause problems with India
  50. All government shutdowns disrupt science − in 2025, the consequences extend far beyond a lapse in funding