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In war, it’s not the size or sophistication of the technology, but how it’s used – especially in combinations. Elena Tita/Global Images Ukraine via Getty Images

Lesson from a year at war: In contrast to the Russians, Ukrainians master a mix of high- and low-end technology on the battlefield

A year ago, the Ukrainian military was largely equipped with Soviet-era weapons. It has since seen an influx of high-tech weapons. But it’s less what than how that’s made a difference.
Educational software has a long history, but chatbots could help students excel like never before. Fabio Principe / EyeEm via Getty Images

ChatGPT could be an effective and affordable tutor

ChatGPT could lead to substantial learning gains if it’s used as a tutor, an online learning specialist says.
Russian President Putin thought he would overrun Ukraine in a few days. These military volunteers and fellow Ukrainians ‘had other ideas,’ writes the author. Mykhaylo Palinchak/SOPA Images/LightRocket via Getty Images

I am a Ukrainian American political scientist, and this is what the past year of war has taught me about Ukraine, Russia and defiance

For a scholar who studies how different generations reacted to the end of the Soviet empire, the war in Ukraine is a collision of the professional and the personal.
If female athletes have to answer menstruation-related questions in order to play team sports, that could be a form of sex-based discrimination. AAron Ontiveroz/MediaNews Group/The Denver Post via Getty Images

Florida will no longer ask high school athletes about their menstrual cycles, but many states still do – here are 3 reasons why that’s problematic

When schools ask student-athletes about their menstrual cycles, they may be infringing on anti-discrimination and privacy laws.
Red-breasted geese breed mainly on Russia’s Taymyr Peninsula and migrate to areas adjacent to the Black Sea in Ukraine, Romania and Bulgaria. Daniel Mitev

Russia’s aggression threatens efforts to protect nature beyond Ukraine

Russia has vast natural resources and is involved in many conservation efforts. Its diplomatic isolation as a result of the war in Ukraine is making it harder to protect many wild species and places.
It wouldn’t take much to turn this remotely operated mobile machine gun into an autonomous killer robot. Pfc. Rhita Daniel, U.S. Marine Corps

War in Ukraine accelerates global drive toward killer robots

The technology exists to build autonomous weapons. How well they would work and whether they could be adequately controlled are unknown. The Ukraine war has only turned up the pressure.
Epigenetics is but one of many factors that influence aging, health and disease. bestdesigns/iStock via Getty Images

Epigenetic and social factors both predict aging and health – but new research suggests one might be stronger

People don’t all age at the same rate. Untangling the factors that influence health and disease – such as epigenetics, demographics and behavior – could lead to better care for those who need it most.
White teens and teens of color do not have identical online experiences. JGI/Jamie Grill/Tetra images via Getty Images

Research on teen social media use has a racial bias – studies of white kids are widely taken to be universal

Black, Latino, Asian and Indigenous teens have different online experiences – both positive and negative – than their white peers. These differences are overlooked when research focuses on white kids.
A statue of Abraham Lincoln, the 16th president of the United States, sits in the Lincoln Memorial in Washington. Historians consistently have given Lincoln, the Great Emancipator, their highest rating because of his leadership during the Civil War. Jakub Porzycki/NurPhoto via Getty Images

Presidential greatness is rarely fixed in stone – changing attitudes on racial injustice and leadership qualities lead to dramatic shifts

Historians change their views of presidents over time, often because of the country’s changing views on race and moral leadership.