Science

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Scientists Observe Sperm Defying a Fundamental Law of Physics

Biology, Cell Biology /

According to a recent study, human sperm use their slender tails to navigate through thick fluids, appearing to defy Newton’s third law of motion. This research also examines the movement patterns of these sex cells alongside single-celled algae. Exploring Non-Reciprocal Interactions in Microscopic Swimmers Kenta Ishimoto, a mathematical scientist at Kyoto University, and his team […]

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Design Sem Nome 2024 11 05T143129.424

Feeling Sleepy? Research Identifies the Best Dosage and Timing for Melatonin

Healthcare, Medicine /

Melatonin is a well-known supplement for individuals who have difficulty achieving restful sleep. However, determining the right dosage and the ideal time to take it has often involved trial and error. A recent study addresses this uncertainty. The Role of Melatonin in Sleep Regulation and the Impact of Digital Devices When melatonin levels increase in

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Large Study Reveals Unexpected Origins of Gout

Healthcare, Medicine /

Gout is often linked to poor diet and drinking habits, but new research reveals genetics as a stronger factor in developing the condition than previously believed. In a major study, researchers analyzed genetic data from 2.6 million individuals, including 120,295 with this disease, identifying 377 DNA regions associated with the condition—149 of which were new.

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Scientists Finally Uncover What Really Happens When an Atom Splits

Experimental Physics, Physics /

The term “atom,” derived from Latin for “indivisible,” can be misleading. A recent simulation by U.S. theoretical physicists has provided a detailed microscopic view of how an atom splits in two, shedding light on an energetic event that has significantly impacted science and technology. In 1938, physicists Otto Hahn, Lise Meitner, and Fritz Strassmann demonstrated

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Design Sem Nome 2024 11 05T112218.267

Dark Oxygen Discovered in the Ocean: What Does It Mean?

Earth Science, Environmental Science /

Plants, whether in the ocean or on land, largely produce the oxygen essential for intelligent life as we know it through photosynthesis of carbon dioxide. However, new research suggests that depths with no light might generate oxygen without relying on living organisms. The authors of the study, published in Nature Geoscience, collected samples of marine

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How it works: The Harmonic Drive gear, Precise, High-torque, With a Wobbling Motion

Robotics, Science /

The Harmonic Drive The Harmonic Drive is a fundamental component in countless robotic applications. Although simple and intriguing to watch in action, this gear system combines exceptional precision with an impressive torque-to-weight ratio, even with its characteristic wobbling motion. But how exactly does it work? This seemingly unusual mechanism operates ingeniously: its flexible-ellipse-within-a-circle configuration creates

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Design Sem Nome 2024 11 05T103038.726

A Significant Number of Doctors are Already Integrating AI Into Medical Care

Healthcare, Medicine /

A recent survey of approximately 1,000 UK general practitioners found that one in five doctors use generative AI tools—such as OpenAI’s ChatGPT or Google’s Gemini—to support clinical practice. Doctors reported using generative AI for tasks like creating documentation after appointments, assisting in clinical decision-making, and delivering patient information—such as easy-to-understand discharge summaries and treatment plans.

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Physicists Create Sound Waves That Move Exclusively in One Direction

Physics /

Imagine three people arranged in a circle, where each can only hear one other directly. Scientists have created a device that directs sound waves in just this way, allowing them to travel in a single direction only. Developed by researchers at ETH Zurich and the Swiss Federal Institute of Technology Lausanne, the device consists of

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TikTok Claims Cough Medicine Could Aid in Pregnancy—Here’s the Science

Healthcare, Medicine /

The desire for biological children (conception) is deeply ingrained in many people, especially those facing infertility, which makes the allure of simple solutions hard to resist. This may explain why “the Mucinex method” has gained traction on social media. On TikTok, many women credit their successful conceptions to Mucinex, a common cough and cold medicine,

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Nanoplastics May Weaken the Effectiveness of Antibiotics

Healthcare, Medicine, Science /

Nanoplastics’ Impact on Antibiotic Absorption and Resistance A recent study reveals that nanoplastics—tiny plastic particles smaller than 0.001 millimeters—can interfere with the body’s ability to absorb antibiotics and may even encourage the development of antibiotic-resistant bacteria. Researchers from the University of Vienna, University of Bonn, and University of Debrecen used molecular models to examine the

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