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Today โ€” 21 May 2024Phys.org - latest science and technology news stories

Genes provide hope for the survival of Arabia's last big cat

The authors of a major study on the critically endangered Arabian leopard say that the release of captive bred animals carefully selected for their genes can make a significant contribution to the successful recovery of the dwindling wild population and avert the prospect of extinction.

Yesterday โ€” 20 May 2024Phys.org - latest science and technology news stories

Biologists travel with their mobile laboratory to study a wide range of mitochondrial functions in avian migration

For Wendy Hood and Geoffrey Hill in Biological Sciences, Andreas Kavazis in Kinesiology, and their team, Emma Rhodes, Paulo Mesquita, and Jeff Yap, traveling the country to unlock the mystery of mitochondria in migrating aviary species has allowed them to make a significant contribution to research in an area that has not been investigated before.

Increasing drought puts the resilience of the Amazon rainforest to the test

Since 2015, the Amazon has been slower to recover from increasing drought events, but, overall, the rainforest still shows a remarkable resilience. New international research led by KU Leuven Earth and environmental scientists shows that forest degradation due to drought has been most pronounced in the southern Amazon, where human impact is greatest.

Appropriate exercise is an important part of crew health during space missions

Future missions to the moon and Mars must address many challenges, including preventing loss of bone and muscle tissue in astronauts. Research on the International Space Station is helping to address this challenge.

Legacy of Indigenous stewardship of camas dates back more than 3,500 years, study finds

An Oregon State University study has found evidence that Indigenous groups in the Pacific Northwest were intentionally harvesting edible camas bulbs at optimal stages of the plant's maturation as far back as 3,500 years ago.

New 3D models reveal how warming climate affects underwater ocean tides

Few things in nature are as predictable as ocean tides. Driven by the moon's and sun's gravitational pull, these persistent, short-period, and large-magnitude phenomena are apparent in nearly all types of oceanographic and satellite observations. They also directly impact the rhythm of life for millions of people and countless ecosystems.

Researchers identify the principle behind 'soft mechanoluminescent complex'

A research team collaborated to identify the principle of an eco-friendly energy-based soft mechanoluminescent complex that emits light without batteries. It is expected to be applied in various fields, such as optical sensors, artificial skin, and displays. The team includes Dr. Jeong Soon-moon, Dr. Lim Sung-jun (Division of Nanotechnology) and Prof. Kim Young-hoon (Department of Applied Chemistry, Kookmin University).

From 'yellow peril' to COVID-19: New book takes unflinching look at anti-Asian racism

More than 150 years ago, some 15,000 Chinese workers arrived in the U.S. to help construct the country's first transcontinental railroad, which connected the West Coast with the East Coast's rail network.

Study shows alkyl-aromatic hybrid micelles can form from emergent umbrella-shaped molecules

Micelles assemble in water from amphiphilic molecules, composed of hydrophilic and hydrophobic frameworks. They can be found all around us, for example in soaps, detergents, and shampoos. Their main application is the water-solubilization of insoluble molecules through encapsulation into hydrophobic cavities.

Decarbonization dynamics: New analysis unveils shifting trends in the voluntary carbon offset market

As humanity grapples with the fight against climate change, reducing greenhouse gas emissions is urgently necessary. One way to achieve this is through the carbon offset market, where organizations or individuals can buy credits from emissions-reducing projects.

Researchers investigate mercury concentrations in fish and wildlife on a global scale

A paper, titled "Global Mercury Concentrations in Biota: Their Use as a Basis for a Global Biomonitoring Framework" and published in the journal Ecotoxicology, describes for the first time currently available mercury data for fish and wildlife on a global scale. Data from the peer-reviewed literature, compiled in the Global Biotic Mercury Synthesis (GBMS) database of the Biodiversity Research Institute (BRI), will help inform worldwide efforts to reduce the impact of mercury pollution on people and the environment.

Comparison of four methods on drying efficiency and physicochemical properties of chicken meat

Chicken breast jerky (CBJ) is a popular pet food due to its high crude protein content and long shelf life. In the production of CBJ, the drying process is a crucial step. However, the physicochemical and functional properties of CBJ depend on the drying method used.

Combating air pollution in China: Why secondary pollutants are now a primary concern

Like most countries, China has had its problems with air pollution. However, over the last decade, a series of successful measures implemented by the Chinese government have resulted in an impressive improvement in air quality.

Melon flavor decoded: The genetic keys to aromatic diversity

Melon aroma greatly influences consumer preference and fruit quality. Climacteric melons produce more esters, while non-climacteric melons have more aldehydes. Understanding these genetic differences is crucial for breeding better melons. Although genes involved in volatile organic compound (VOC) biosynthesis have been identified, a comprehensive genetic map is still missing. In-depth research is needed to uncover the genetic basis of melon aroma and ripening behavior.

The genetic interplay in Impatiens downy mildew: A transcriptome-based approach to enhancing disease resistance

A research team has meticulously analyzed the transcriptional response of Impatiens walleriana to Plasmopara obducens infection, revealing between 3,000 and 4,500 differentially expressed transcripts at various stages of the disease.

Plastic-greenhouse agriculture: A novel soil profile design for global sustainability and enhanced crop production

A research team has developed a novel conceptual framework for designing plastic-greenhouse soil profiles that cater to the needs of smallholder farmers. The soil profile includes four functional layers: a soil mulch layer for preventing evaporation, a root-carbon layer for nutrient, CO2, and heat generation, a soil-carbon mix layer for buffering and nutrient supply, and a water conservation layer to store water and nutrients.

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