139 articles from TUESDAY 2.8.2022

Tarsiers push virtuoso singing to their physiological limits

Opera arias are typically rich in coloratura, for example fast, high notes that stretch over a wide frequency range. Coloratura aren't just beautiful to listen to: they are also designed to allow the best singers to show off their virtuosity. Now, researchers from Sam Ratulangi University in Indonesia and Cornell University in the US show that pairs of Gursky's spectral tarsier sing duets that...

How do Dangerous Blood Clots Form in Space? New Insights from a Valve Model May Provide Information to Protect Astronauts

PROJECT Thrombosis in Microgravity (Understanding how blood clots form in space) SNAPSHOT Determining how blood-flow patterns near valves in the veins affect the movement of red blood cells may identify ways to prevent blood clots in astronauts. Z-na Sanchez (L) and Vignesha Vijayananda (R) observing blood flow patterns in Dr. Anand Ramasubramanian’s Lab at San Jose State University....

Study tracks plant pathogens in leafhoppers from natural areas

Phytoplasmas are bacteria that can invade the vascular tissues of plants, causing many different crop diseases. While most studies of phytoplasmas begin by examining plants showing disease symptoms, a new analysis focuses on the tiny insects that carry the infectious bacteria from plant to plant. By extracting and testing DNA from archival leafhopper specimens collected in natural areas, the study...

Manipulating chromosomes in living cells reveals that they are fluid

For the first time, scientists from CNRS, Institut Curie and Sorbonne Université have been able to act physically on chromosomes in living cells. By subjecting the chromosomes to different forces using magnets, they discovered that chromosomes are in fact very fluid—almost liquid—outside cell division phases. This study was published in Science on July 29, 2022.

Researchers design the cheapest and most efficient squid aquaculture system to date

A squid is a type of cephalopod that has an elongated body, eight arms and two tentacles. Globally, there are at least 300 species of squid distributed across the world's oceans. They're also a healthy food source as they're packed with protein, thus contributing to high-quality meals. But all the species of squid in Japan's waters have been declining since the 1980s and their estimated population...

Light as a tool for the synthesis of complex molecules

Chemists at the University of Münster have developed a novel and straightforward way to produce complex organic molecules. Mild reaction conditions, simple operation, scalability and the use of an inexpensive and commercially available photosensitizer make the method interesting for industrial applications. The results of the study published August 1 in Nature Chemistry.

Consumers are likely to be susceptible to slick graphic design of trading platforms

In today's digital society, online investment trading tools have become commonplace. So are user design elements like flashing graphs, zero commission trading, and notifications on mobile devices. But preliminary findings from a new study out of the Lally School of Management at Rensselaer Polytechnic Institute indicate that new investors may be falling prey to these sophisticated elements of web...

New research reveals that wildfires can influence El Niño

Wildfire is a phenomenon that has affected pretty much every vegetated environment on Earth for millions of years. However, during the past few decades, the planet has been experiencing extraordinary wildfire activity, with widespread devastation in diverse places such as the Mediterranean, North and South America, Southeast Asia, Australia and even Siberia. The current year has already shown...

Rotary motor reveals how microbial metabolites modulate bacterial energetics

Dr. Pushkar Lele and a team of researchers from Texas A&M University conducted a study to see how indole—an organic compound and a significant component of the bacterial exometabolome—impacts the energy levels and protein function in bacteria. Indole can promote antibiotic resistance, so understanding the metabolite's diverse effects on bacterial physiology is critical.

Webb Captures Stellar Gymnastics in The Cartwheel Galaxy

Portal origin URL: Webb Captures Stellar Gymnastics in The Cartwheel GalaxyPortal origin nid: 481615Published: Tuesday, August 2, 2022 - 10:00Featured (stick to top of list): noPortal text teaser: NASA’s James Webb Space Telescope has peered into the chaos of the Cartwheel Galaxy, revealing new details about star formation and the galaxy’s central black hole. Webb’s...