DNA

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Feb 26 2025CRIME

The Mystery of the Lingering Kiss

Imagine this: A crime scene. A kiss, a bite, a lick. A trace of saliva left behind. This is not a love story. It's a forensic puzzle. DNA from saliva can stick around, even after the act. This is not new news. But, what if we could use it better? What if we could find more clues from it? DNA is lik

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Feb 19 2025ENVIRONMENT

Spotlight on Lead: A Sneaky Metal and How to Catch It

Lead, a notorious heavy metal, is a major troublemaker. It can wreak havoc on both our environment and our health. So, how do we catch this sneaky metal? Scientists have come up with a clever way to detect lead ions (Pb2+) using something called a DNA aptamer and a dye called crystal violet

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Feb 19 2025SCIENCE

DIY DNA Extraction: Cheap, Quick, and Green!

Imagine doing something as complex as DNA extraction without needing a lab full of expensive equipment. That's what some researchers have managed to do. They've found a way to extract DNA using simple household items, making the process faster, cheaper, and more environmentally friendly.

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Feb 19 2025SCIENCE

Teeth: The Unyielding DNA Vault

Teeth are tough. They can stand up to a lot, including strong acids. This is important for forensic scientists. They often need to identify people from remains. Teeth are great for this because they hold onto DNA well. Even when exposed to harsh chemicals, teeth can still give up their DNA secrets.

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Feb 17 2025CRIME

Unlocking Fingerprints: The Science Behind Getting DNA from Fingerprints

Forensic science has long relied on two key methods: analyzing fingerprints and extracting DNA. Both are crucial in solving crimes. However, getting clear fingerprints and extracting DNA from the same sample can be tough. This is especially true when the fingerprints are not clear enough. In such ca

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Feb 16 2025CRIME

Unsung Heroes: The Nighttime Search for Captives

Imagine this: A woman, not a detective, but a regular person, hunched over a laptop, eyes scanning through countless photos. She's not looking for fun; she's on a mission. This woman, Pari Ibrahim, is part of a unique group. They're not professionals, but they're doing something incredible. They're

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Feb 14 2025CRIME

Unlocking Secrets: DNA in Dried Blood and Blood-Tinged Saliva

Forensic science relies heavily on DNA to identify individuals. This is especially true in cases involving crimes, traumas, and natural disasters. Blood has long been a go-to source for DNA analysis due to its abundance of genetic material. However, collecting blood can be invasive and challenging.

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Feb 12 2025HEALTH

Unraveling Vulvar Cancer Risk: The Role of DNA Changes

Vulvar squamous cell carcinoma (VSCC) often begins as a precancerous condition known as high-grade vulvar intraepithelial lesion (HSIL). This condition, linked to human papillomavirus (HPV), poses a significant risk, with 8% of cases progressing to cancer. This is why it's so important to understand

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Feb 11 2025CRIME

The Long Island Case Solved by Technology

On a chilly December day in 2003, a disturbing discovery was made on Long Island. Neighbors found the door of Edna Schubert's home in North Bay Shore, N. Y. , wide open. Inside, they saw a shattered window and papers flying in the wind. But the worst was yet to be seen. Edna Schubert, a 88-year-old

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Feb 08 2025SCIENCE

Paper Artwork's Hidden Worlds

Have you ever wondered what secrets artworks might hold beyond their visible beauty? Researchers delved into this mystery by examining biological material found on artworks. The main goal? To create a guideline for curating, preserving, and restoring these pieces without causing damage. The key to t

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