🤖 Computer Science

Cryptography Tricks Make a Hard Problem a Little Easier

How do we tackle challenging problems effectively? Computational complexity theory investigates this question, exploring various approaches. Recent discoveries have unveiled new algorithms for compression problems, providing faster alternatives to exhaustive trial-and-error methods.

Multiclass classification of diseased grape leaf identification using deep convolutional neural network(DCNN) classifier

This study addresses the challenges facing grape cultivation, particularly pest and disease threats, which can significantly reduce productivity and economic returns. To mitigate these issues, the study employs Convolutional Neural Network (CNN) and VGG16-based DCNN Classifier models to accurately and promptly identify grape leaf diseases.

To build a better AI helper, start by modeling the irrational behavior of humans

Creating AI systems capable of collaborating effectively with humans requires an accurate model of human behavior. However, humans often make suboptimal decisions due to computational constraints. Researchers devised a method to model the behavior of agents, human or machine, considering the unknown computational limitations that may affect problem-solving abilities.

➕ Math

Mathematicians Explain Why Some Lengths Can’t Be Measured

Can you assign a size to every object? The surprising answer is no.

⚛️ Physics and Chemistry

Scientists grow human mini-lungs as animal alternative for nanomaterial safety testing

Human mini-lungs grown by University of Manchester scientists can mimic the response of animals when exposed to certain nanomaterials. The study is published in Nano Today.

Meet ‘goldene’: this gilded cousin of graphene is also one atom thick

It is the world’s thinnest gold leaf: a gossamer sheet of gold just one atom thick. Researchers have synthesized  the long-sought material, known as goldene, which is expected to capture light in ways that could be useful in applications such as sensing and catalysis.

New $132 million chemistry building opens at University of Maryland

The University of Maryland in College Park, US, has launched a cutting-edge chemistry building to anchor research in quantum chemistry, molecular nanoscience, and sustainability. The $132 million facility will support various studies, including antibody-based therapeutics, HIV vaccine development, energy conversion technologies, and quantum-state controlled chemical reactions.

🧬 Biology & Medicine

'Vampire' bacteria thirst for human blood — and cause deadly infections as they feed

Scientists have discovered several bacteria that can cause deadly bloodstream infections in humans are attracted to an amino acid in our blood.

Scientists discover forests that may resist climate change

A University of Vermont (UVM) study in Ecology and Evolution challenges conventional forest climate patterns by examining "cold-air pooling," where cold air drains into valleys, reversing typical temperature trends. Lead author Melissa Pastore notes vegetation inversions, with cold-adapted species found at lower elevations instead of higher.

Can DNA Tests Promote Colorectal Cancer Screening?

Colorectal cancer (CRC) is a significant public health concern in France, with over 43,000 new cases and nearly 17,700 deaths annually. Early detection through screening improves survival rates by allowing for curative treatment before the disease progresses to advanced stages, where survival rates are lower.

🔭 Space & Astronomy

SpaceX and Northrop are working on a constellation of spy satellites

SpaceX is reportedly working with at least one major US defense contractor, Northrop Grumman, on a constellation of spy satellites for the National Reconnaissance Office.

SpaceX launches Starlink satellites on company's 40th mission of 2024

SpaceX launched its 40th mission of the year. A Falcon 9 rocket carrying 23 of the company's Starlink internet satellites lifted off from Cape Canaveral Space Force Station in Florida at 6:40 p.m. EDT April 18th.

🌐 Others

Water extraction and weight of buildings see half of China's cities sink

Nearly half of China's major cities are sinking because of water extraction and the increasing weight of their rapid expansion, researchers say.

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