Month: April 2025

Eine strukturierte Einführung in Keycloak zeigt, wie sich Single Sign-on, Multi-Faktor-Authentifizierung und Nutzerverwaltung zentral realisieren lassen - inklusive Anbindung an bestehende Infrastrukturen. (Golem Karrierewelt, Server-Applikationen)

Tesla hat in der Gigafactory in Grünheide schon eine halbe Million Autos gebaut. Doch die Gewinne werden nicht in Deutschland versteuert. (Gigafactory Berlin, Elektroauto)

Der designierte Bundeskanzler Friedrich Merz hat seine Haltung zur Lieferung von Taurus-Marschflugkörpern an die Ukraine bekräftigt. (Militär, Politik)

Computed tomography scans have become vital, even lifesaving, medical imaging for diagnosing and monitoring health conditions. But they do expose patients to ionizing radiation at levels linked to higher risks of cancer. In a new study in JAMA Internal Medicine, researchers tried to estimate what those higher risks are exactly—and although the estimates come with uncertainty, they may seem startling.

Based on data from 93 million CT scans performed on 62 million people in 2023, the researchers estimated that the CT scans would lead to 103,000 future cancers. To put that in context, those 103,000 cancers would account for about 5 percent of cancers diagnosed each year, based on the current cancer rates and the current usage of CT scans. And the estimate puts CT scans on par with alcohol consumption and obesity in terms of risk factors for developing cancer.

The most common types of cancers estimated to be a result of CT scans were lung cancer and colon cancer—two cancers that are becoming more common in younger people for reasons experts do not fully understand. The types of CT scans linked to the greatest number of cancers were abdomen and pelvis CT scans.

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The Trump administration has been using federal research funding as a cudgel. The government has blocked billions of dollars in research funds and threatened to put a hold on even more in order to compel universities to adopt what it presents as essential reforms. In the case of Columbia University, that includes changes in the leadership of individual academic departments.

On Friday, the government sent a list of demands that it presented as necessary to "maintain Harvard’s financial relationship with the federal government." On Monday, Harvard responded that accepting these demands would "allow itself to be taken over by the federal government." The university also changed its home page into an extensive tribute to the research that would be eliminated if the funds were withheld.

The reprisals against Harvard began almost immediately. By the end of Monday, the Trump administration put $2.2 billion of Harvard's research funding on hold. And on Tuesday, Trump himself made threats against the university's tax exempt status.

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Mars is back on the agenda.

During his address to a joint session of Congress in March, President Donald Trump said the United States "will pursue our Manifest Destiny into the stars, launching American astronauts to plant the Stars and Stripes on the planet Mars."

What does this mean? Manifest destiny is the belief, which was particularly widespread in 1800s America, that US settlers were destined to expand westward across North America. Similarly, then, the Trump administration believes it is the manifest destiny of Americans to settle Mars. And he wants his administration to take steps toward accomplishing that goal.

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On Monday, OpenAI announced the GPT-4.1 model family, its newest series of AI language models that brings a 1 million token context window to OpenAI for the first time and continues a long tradition of very confusing AI model names. Three confusing new names, in fact: GPT‑4.1, GPT‑4.1 mini, and GPT‑4.1 nano.

According to OpenAI, these models outperform GPT-4o in several key areas. But in an unusual move, GPT-4.1 will only be available through the developer API, not in the consumer ChatGPT interface where most people interact with OpenAI's technology.

The 1 million token context window—essentially the amount of text the AI can process at once—allows these models to ingest roughly 3,000 pages of text in a single conversation. This puts OpenAI's context windows on par with Google's Gemini models, which have offered similar extended context capabilities for some time.

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The Bigme B13 is a portable monitor with a 13.3 inch, 3200 x 2400 pixel display featuring a 30 Hz refresh rate. There’s nothing unusual about that, but what makes this little screen stand out is the type of display technology it uses. Rather than LCD or OLED, the Bigme B13 has an E Ink color […]

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In one way or another, the Lunar Gateway has lingered around the periphery of NASA's human exploration program since the Obama administration.

Back then, the elements that eventually coalesced into the Gateway were geared toward a nebulous initiative to capture a small asteroid and reposition it closer to Earth. Under direction from the first Trump administration, NASA ditched the asteroid idea and repackaged the concept to become a mini-space station in orbit around the Moon.

NASA officials justified the Lunar Gateway program by highlighting its utility as a staging point or safe haven for astronauts traveling to and from the surface of the Moon. Crews could launch from Earth and travel to the Moon's vicinity inside NASA's Orion spacecraft, connect with the Gateway, and then float into their lunar lander already docked with the outpost.

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The StarPro64 is a single-board computer with a quad-core RISC-V processor, hardware-accelerated graphics and support for 8K video playback, and an NPU that delivers nearly 20 TOPS of AI performance. First unveiled last fall, Pine64 now says StarPro64 should be available for purchase before the end of April. The board measures 133 x 80 x 19mm […]

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