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Jul 21, 2023

Software system can find, track moving objects as small as a pixel

Posted by in categories: computing, drones, satellites, security, surveillance

Remember what it’s like to twirl a sparkler on a summer night? Hold it still and the fire crackles and sparks but twirl it around and the light blurs into a line tracing each whirl and jag you make.

A new patented software system developed at Sandia National Laboratories can find the curves of motion in streaming video and images from satellites, drones and far-range security cameras and turn them into signals to find and track moving objects as small as one . The developers say this system can enhance the performance of any remote sensing application.

“Being able to track each pixel from a distance matters, and it is an ongoing and challenging problem,” said Tian Ma, a computer scientist and co-developer of the system. “For physical security surveillance systems, for example, the farther out you can detect a possible threat, the more time you have to prepare and respond. Often the biggest challenge is the simple fact that when objects are located far away from the sensors, their size naturally appears to be much smaller. Sensor sensitivity diminishes as the distance from the target increases.”

Jul 21, 2023

New device turns sunlight into hydrogen with record efficiency

Posted by in categories: solar power, sustainability

As we strive towards a more sustainable future, it’s becoming increasingly important to find innovative ways to decarbonize industry and facilitate clean energy storage.

One promising approach is the manufacture of valuable products and fuels using available, low-cost feedstocks like water, carbon dioxide, nitrogen, and solar energy. By harnessing the power of these abundant resources, we can reduce our reliance on fossil fuels and move towards a cleaner, more sustainable energy future.

In a similar effort, Rice University engineers have developed a device that can turn sunlight into hydrogen with record-breaking efficiency – a significant step forward for clean energy. The device combines next-generation halide perovskite semiconductors with electrocatalysts in a single, durable, cost-effective, and scalable device.

Jul 21, 2023

ChatGPT update allows it to remember who you are and what you like

Posted by in category: robotics/AI

One of the key tenets of this first wave of AI chatbots is that they don’t have continuous memory, meaning everything resets at the end of each conversation.

Jul 21, 2023

Fueled by new chemistry, algorithm mines fungi for useful molecules

Posted by in categories: biotech/medical, chemistry, computing, food, genetics, information science

A newly described type of chemistry in fungi is both surprisingly common and likely to involve highly reactive enzymes, two traits that make the genes involved useful signposts pointing to a potential treasure trove of biological compounds with medical and chemical applications.

It was also nearly invisible to scientists until now.

In the last 15 years, the hunt for molecules from living organisms—many with promise as drugs, antimicrobial agents, chemical catalysts and even food additives—has relied on trained to search the DNA of bacteria, fungi and plants for genes that produce enzymes known to drive that result in interesting compounds.

Jul 21, 2023

Chemical mapping reveals the Milky Way’s spiral arms

Posted by in categories: chemistry, mapping, space

Identifying regions of the Milky Way’s spiral arms that have previously gone undetected.

Jul 21, 2023

Amazon to launch pay-by-palm technology at all Whole Foods stores by year-end

Posted by in category: food

Amazon One lets users enter and pay for items in stores by swiping their hand over a kiosk.

Jul 21, 2023

Apple stock pops on report it’s developing its own equivalent of ChatGPT

Posted by in category: futurism

The move signals Apple is taking recent advances in the technology seriously and is considering integrating them into future products.

Jul 21, 2023

SoundStorm: Google Unveils Terrifying AI Tool Capable of Real-Time Voice Replication

Posted by in category: robotics/AI

Google has introduced SoundStorm, a cutting-edge model for efficient and non-autoregressive audio generation.

It employs bidirectional attention and confidence-based parallel decoding to generate high-quality audio while significantly reducing generation time.

It also has the ability to synthesize natural dialogues.

Jul 21, 2023

Hardship Is Reflected in the Gut Microbiome Across Generations

Posted by in category: biotech/medical

Adversity experienced by mothers during their childhood or pregnancy is reflected in their children’s gut microbiomes, a recent study found.

Jul 21, 2023

Scientists get a new view of digestion

Posted by in categories: bioengineering, biotech/medical, neuroscience

Our gut microorganisms, collectively known as the gut microbiota, affect far more than digestion. Bacteria in our intestinal tracts influence brain activity — and even the likelihood of developing mental disorders. Decades of research have shown that a bacterially imbalanced gut can disrupt many systems in the human body, contributing to obesity, malnutrition and even cancer. In a study published May 10 in Nature, Stanford Medicine researchers and collaborators used an ingestible device to capture the diversity of microorganisms, viruses, proteins and bile in the small intestine.

The proof-of-concept results provide early evidence that there are more comprehensive ways to measure microbiota in the digestive system than current sampling methods — which mostly focus on stool — and shed new light on how resident gut microbes might contribute to human physiology and disease.

“This paper demonstrates a big leap forward in microbial detection and captures the living gut microbiota in a nutshell,” said co-senior author KC Huang, PhD, a professor of bioengineering and of microbiology and immunology, co-senior author with David Relman, MD, a professor of medicine and of microbiology and immunology. “Samples from current tools don’t fully represent what’s going on inside of us. But it’s all we’ve had — until now.”