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Happy 50th birthday to the UPC barcode – no one expected you would revolutionize global commerce

  • Written by Jordan Frith, Pearce Professor of Professional Communication, Clemson University

The first modern barcode was scanned 50 years ago this summer – on a 10-pack of chewing gum in a grocery store in Troy, Ohio.

Fifty is ancient for most technologies, but barcodes are still going strong. More than 10 billion barcodes are scanned every day around the world. And newer types of barcode symbols, such as QR codes, have created...

Read more: Happy 50th birthday to the UPC barcode – no one expected you would revolutionize global commerce

Chronic pain: emerging treatment options for patients after the opiod crisis – podcast

  • Written by Gemma Ware, Head of Audio
imageNew pain management techniques could help the hundreds of millions of people suffering with chronic pain.GettyImages

Chronic pain affects hundreds of millions of people around the world. But the opioid crisis in North America led many health care providers to realize they relied too heavily on drugs to help patients manage their pain.

In this...

Read more: Chronic pain: emerging treatment options for patients after the opiod crisis – podcast

Paris Olympics promote sustainability for good reason: Climate change is putting athletes and their sports at risk

  • Written by Brian P. McCullough, Associate Professor of Sport Management, University of Michigan
imageThe 2024 Summer Olympics go for green as organizers try to slash their carbon footprint.AP Photo/Michel Euler

Europe is in the midst of a heat wave, and while Olympic athletes in Paris for the 2024 Summer Games might be spared the worst of it, the weather will still be hot.

As global temperatures have risen, major sporting events like the Olympics...

Read more: Paris Olympics promote sustainability for good reason: Climate change is putting athletes and...

Revisiting Middletown, Ohio – the Midwestern town at the heart of JD Vance’s ‘Hillbilly Elegy’

  • Written by Matthew Smith, Visiting Assistant Professor of History, Miami University
imageA mural in downtown Middletown, Ohio, home to around 51,000 residents – and JD Vance's hometown.Scott Olson/Getty Images

With Sen. JD Vance named Donald Trump’s running mate, commentators are dusting off Vance’s 2016 memoir, “Hillbilly Elegy,” to explain America’s political moment.

Eight years ago, Vance was a...

Read more: Revisiting Middletown, Ohio – the Midwestern town at the heart of JD Vance’s ‘Hillbilly Elegy’

Xylazine wounds are a growing crisis among drug users in Philly − a nurse explains potential causes and proper treatment

  • Written by Rachel McFadden, Bloomberg Fellow, Penn Medicine Center for Addiction Medicine and Policy, University of Pennsylvania
imageA volunteer registered nurse treats a xylazine-associated wound at a clinic in the Kensington neighborhood of Philadelphia.Matt Rourke/AP

Warning: This article contains graphic images.

Xylazine or “tranq” wounds – characterized by deep pockets of dead tissue – have become increasingly visible in Philadelphia among people who...

Read more: Xylazine wounds are a growing crisis among drug users in Philly − a nurse explains potential...

Good feedback is an art – here’s how I teach it

  • Written by Patrick Barry, Clinical Assistant Professor of Law and Director of Digital Academic Initiatives, University of Michigan
imageGetting people involved in the feedback process can take away the sting of criticism. Luis Alvarez/DigitalVision via Getty Imagesimage

Uncommon Courses is an occasional series from The Conversation U.S. highlighting unconventional approaches to teaching.

Title of Course:

“Feedback Loops: How to Give and Receive High-Quality Feedback”

What...

Read more: Good feedback is an art – here’s how I teach it

What do genes have to do with psychology? They likely influence your behavior more than you realize

  • Written by Jessica D. Ayers, Assistant Professor of Psychological Science, Boise State University
imageWhether genes are able to compromise between their competing interests can have consequences for development.pressureUA/iStock via Getty Images Plus

As a species, humans like to think that we are fully in control of our decisions and behavior. But just below the surface, forces beyond our conscious control influence how we think and behave: our...

Read more: What do genes have to do with psychology? They likely influence your behavior more than you realize

Cheesemaking is a complex science – a food chemist explains the process from milk to mozzarella

  • Written by John A. Lucey, Professor of Food Science, University of Wisconsin-Madison
imageStoring cheese wheels to let them age intensifies the flavor. AP Photo/Antonio Calanni

Cheese is a relatively simple food. It’s made with milk, enzymes – these are proteins that can chop up other proteins – bacterial cultures and salt. Lots of complex chemistry goes into the cheesemaking process, which can determine whether the...

Read more: Cheesemaking is a complex science – a food chemist explains the process from milk to mozzarella

Arrest student protesters, wait or negotiate? Colleges can use ‘ladder of harm’ to determine appropriate response to Gaza protests on campus

  • Written by Archon Fung, Professor of Citizenship and Self-Government, Harvard Kennedy School

Summer’s arrival ended for now the anti-war protests that rocked college campuses across the U.S. during the spring 2024 semester. Israel’s assault on Gaza, however, grinds on, and student protests may erupt again in the fall, especially as the presidential election heightens political tensions.

Once again, university presidents across...

Read more: Arrest student protesters, wait or negotiate? Colleges can use ‘ladder of harm’ to determine...

Biden dropped out − is the news media to blame?

  • Written by Jacob L. Nelson, Associate Professor of Communication, University of Utah
imageSome have claimed the news media forced President Joe Biden to abandon his race for reelection.Kevin Dietsch/Getty Images

For weeks in July 2024, a mix of journalists and academics lamented the news media’s relentless coverage of President Joe Biden’s age since his disastrous debate performance on June 27.

“The New York Times et...

Read more: Biden dropped out − is the news media to blame?

More Articles ...

  1. Cancer costs for Americans with private health insurance rose after the ACA rollout and fell for those with Medicaid
  2. As Hamas war drags on, Israeli democracy weakens further
  3. Supreme Court ruling may put presidents above the law – but even kings never were
  4. Can a brush with death change politicians? It did for notorious Alabama segregationist George Wallace
  5. Court battle to keep Annunciation House open underscores how faith groups strive to welcome strangers in the face of anti-immigrant sentiment
  6. Lincoln called for divided Americans to heed their ‘better angels,’ and politicians have invoked him ever since in crises − but for Abe, it was more than words
  7. Sure, 2024 has had lots of news – but compared with 1940, 1968 or 1973, it’s nothing exceptional
  8. Retaining flavor while removing caffeine − a chemist explains the chemistry behind decaf coffee
  9. Seafloor sediment reveals previously unknown volcanic eruption 520,000 years ago in south Aegean Sea
  10. Worried about the health effects of the sugar in your breakfast cereal? Little has changed since the days of ‘Unfrosted,’ the Pop-Tarts movie
  11. Counter-drug strategies in Central America are worsening deforestation, threatening many species of birds
  12. Athletes looking for a competitive edge may find it within their gut microbiome
  13. Unequal access to quantum information education may limit progress in this emerging field − now is the time to improve
  14. COVID-19 devastated teacher morale − and it hasn’t recovered
  15. GOP attacks against Kamala Harris were already bad – they are about to get worse
  16. US says it wants Palestinians to have a country of their own – but its actions say otherwise
  17. Amid humanitarian crisis and ongoing fighting, Africa’s war-scarred Sahel region faces new threat: Ethno-mercenaries
  18. How do 9 states get by with no income tax? A tax expert explains the trade-offs they choose
  19. Bob Newhart was more than an actor or comedian – he was a literary master
  20. Bugs thrive in urban Los Angeles – volunteers’ traps reveal biodiversity hot spots for city insects and spiders
  21. Diabetes and obesity can damage the liver to the point of failure – but few people know their risk of developing liver disease
  22. The Yezidi genocide devastated Iraq’s community 10 years ago − but the roots of the prejudice that fueled it were much deeper
  23. Buses weren’t the only civil rights battleground in Montgomery – the city’s parks still reflect a history of segregation
  24. Until 1968, presidential candidates were picked by party conventions – a process revived by Biden’s withdrawal from race
  25. Massive IT outage spotlights major vulnerabilities in the global information ecosystem
  26. What is Catholic Integralism?
  27. Online rumors sparked by the Trump assassination attempt spread rapidly, on both ends of the political spectrum
  28. Biden’s and Trump’s ages would prevent them running many top companies – and for good reason
  29. How the Ukrainians – with no navy – defeated Russia’s Black Sea Fleet
  30. Affordable housing in God’s backyard: Some religious congregations find a new use for their space
  31. Age would prevent Trump and Biden from running many top companies − and for good reason
  32. Why I turned the ‘Red Dead Redemption II’ video game into a history class on America’s violent past
  33. Sports in extreme heat: How high school athletes can safely prepare for the start of practice, and the warning signs of heat illness
  34. Fewer bees and other pollinating insects lead to shrinking crops
  35. Cutting marketing spending often backfires on businesses – new research could help investors distinguish shortsighted cuts from smart ones
  36. Sports in extreme heat: Warning signs of heat illness and how high school athletes can safely prepare for the start of team practices
  37. Long COVID puzzle pieces are falling into place – the picture is unsettling
  38. Voting rights at risk after Supreme Court makes it harder to challenge racial gerrymandering
  39. After more than 40 years, the federal right to free education for immigrant students finds itself in the crosshairs of conservatives
  40. Heritage Foundation’s ‘Project 2025’ is just the latest action plan from a group with an over 50-year history of steering GOP lawmaking
  41. Late bedtimes and not enough sleep can harm developing brains – and poorer kids are more at risk
  42. Republicans wary of Republicans – how politics became a clue about infection risk during the pandemic
  43. Pennsylvania continues tradition as ‘keystone state’ in presidential elections
  44. What the Catholic Church says about political violence and the need to forgive – even would-be assassins
  45. ‘MAGA BLACK’ hats, clear swag bags, the first Trump/Vance signs: Highlights of what the Smithsonian is archiving from the Republican convention
  46. Baby bull sharks are thriving in Texas and Alabama bays as the Gulf of Mexico warms
  47. How Trump’s appeal to nostalgia deliberately evokes America’s more-racist, more-sexist past
  48. AI mass surveillance at Paris Olympics – a legal scholar on the security boon and privacy nightmare
  49. Supreme Court’s blow to federal agencies’ power will likely weaken abortion rights – 3 issues to watch
  50. The Black fugitive who inspired ‘Uncle Tom’s Cabin’ and the end of US slavery