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Category: food

Sunlight-driven nanoparticles enable cleaner ammonia synthesis at room temperature

Ammonia (NH3) is a colorless chemical compound comprised of nitrogen and hydrogen that is widely used in agriculture and in industrial settings. Among other things, it is used to produce fertilizers, as well as cleaning products and explosives.

Currently, ammonia is primarily produced via the so-called Haber-Bosch process, an industrial technique that entails prompting a reaction between nitrogen and hydrogen at very high temperatures and pressure. Despite its widespread use, this process is known to be highly energy-intensive and is estimated to be responsible for approximately 3% of global greenhouse gas emissions.

Researchers at Stanford University School of Engineering, Boston College and other institutes have identified new promising catalysts (i.e., materials that speed up chemical reactions) that could enable the sunlight-driven synthesis of ammonia at room temperature and under normal atmospheric pressure.

Antarctica’s only native insect is already eating microplastics

A global research team led by researchers from the University of Kentucky Martin-Gatton College of Agriculture, Food and Environment has found that Antarctica’s only native insect is already ingesting microplastics, even in one of the planet’s most remote regions.

The study, published in the journal Science of the Total Environment, is the first to examine how microplastics affect an Antarctic insect and to document plastic pieces inside wild-caught midges.

Jack Devlin, who led the work back in 2020 as part of his Ph.D. before moving to Scotland to work as a marine ornithologist, said the project started after a documentary on plastic pollution left him stunned.

Year-round edamame: Hydroponic LED plant factories redefine sustainable cultivation

Artificial light-type plant factories are an emerging agricultural innovation that enables crops to be grown year-round in precisely controlled environments. By adjusting factors such as light, temperature, humidity, carbon dioxide concentration, and nutrient delivery, these facilities can produce stable yields independent of climate conditions. They offer a promising way to reduce pesticide use and minimize the impacts of climate change.

However, legumes like edamame have long been considered difficult to cultivate in such settings because of their long growth periods, short storage periods, complex flowering, and pod-setting processes.

Against this backdrop, the research group, led by Professor Toshio Sano from the Faculty of Bioscience and Applied Chemistry, Hosei University, Japan, and Associate Professor Wataru Yamori of the Graduate School of Agricultural and Life Sciences, The University of Tokyo, Japan, had previously gained attention for successfully cultivating tomatoes under LED lighting in a plant factory.

Calculating the spreading of fluids in porous materials to understand saltwater in soil

A solution to a tricky groundwater riddle from Australia: Researchers at TU Wien have developed numerical models to simulate the movement of fluids in porous materials.

Things are complicated along the Murray–Darling River in southern Australia. Agricultural irrigation washes salt out of the upper soil layers, and this salt eventually ends up in the river. To prevent the river’s salt concentration from rising too much, part of the is diverted into special basins.

Some of these basins are designed to let the salty water evaporate, others to slowly release it in a controlled manner in the underground. That keeps salt temporarily out of the river and allows better management of the river’s water—but it increases the salinity in the ground. How can we calculate how this saltwater spreads underground and what its will be?

Muscle dysmorphia in adolescents and young adults

Body image concerns among adolescent boys and young men are increasingly recognised as societal ideals shift towards a lean, muscular physique. In severe cases, these pressures can lead to muscle dysmorphia, a specifier of body dysmorphic disorder marked by preoccupation with being too small or insufficiently muscular. Adolescents and young adults are developmentally vulnerable and might be at higher risk for a variety of eating-related and body image-related concerns, including muscle dysmorphia.

AI, Autonomy, and Scale: Why Elon Musk’s Timeline Will Break Society

Questions to inspire discussion.

🎯 Q: How should retail investors approach AI and robotics opportunities? A: Focus on technology leaders like Palantir, Tesla, and Nvidia that demonstrate innovation through speed of introducing revolutionary, scalable products rather than attempting venture capital strategies requiring $1M bets across 100 companies.

💼 Q: What venture capital strategy do elite firms use for AI investments? A: Elite VCs like A16Z (founded by Marc Andreessen) invest $1M each in 100 companies, expecting 1–10 to become trillion-dollar successes that make all other bets profitable.

🛡️ Q: Which defense sector companies are disrupting established contractors? A: Companies like Anduril are disrupting the five prime contractors by introducing innovative technologies like drones, which have become dominant in recent conflicts due to lack of innovation in the sector.

⚖️ Q: What mindset should investors maintain when evaluating AI opportunities? A: Be a judicious skeptic, balancing optimism with skepticism to avoid getting carried away by hype and marketing, which is undervalued but crucial for informed investment decisions.

Tesla’s Competitive Advantages.

Continue reading “AI, Autonomy, and Scale: Why Elon Musk’s Timeline Will Break Society” | >

Bright light suppresses eating and weight gain in mice

Past research has found that exposure to bright lights and high levels of noise can alter both physiological processes and human behavior. For instance, an elevated or limited exposure to bright lights and noise has been found to influence people’s sleeping patterns, circadian rhythm, mood, metabolism, stress levels and mental performance.

Researchers at Jinan University and other institutes in China recently carried out a new study involving mice, exploring the possibility that the exposure to bright lights also influences eating behavior and body weight. Their findings, published in Nature Neuroscience, suggest that bright light exposure suppresses food consumption in mice and can lead to weight loss, while also identifying neural processes that could support these light-induced changes in feeding behavior.

“Environmental light regulates nonimage-forming functions like feeding, and bright light therapy shows anti-obesity potential, yet its neural basis remains unclear,” wrote Wen Li, Xiaodan Huang and their colleagues in their paper. “We show that bright light treatment effectively reduces food intake and mitigates weight gain in mice through a visual circuit involving the lateral hypothalamic area (LHA).”

A stress-related chemical could initiate symptoms of depression

Depression, one of the most prevalent mental health disorders worldwide, is characterized by persistent feelings of sadness, impaired daily functioning and a loss of interest in daily activities, often along with altered sleeping and eating patterns. Past research findings suggest that stress can play a key role in the emergence of depressive symptoms, yet the biological processes via which it might increase the risk of depression remain poorly understood.

Researchers at Wenzhou Medical University, Capital Medical University and other institutes in China recently carried out a study investigating the biological processes that could link stress to the onset of depression. Their results, published in Molecular Psychiatry, suggest that stress influences the levels of a chemical known as formaldehyde (FA) in specific parts of the brain, which could in turn disrupt their normal functioning, contributing to the emergence of depression.

This Fungus Turns Bark Beetles’ Defenses Against Them

Spruce bark beetles hijack their host tree’s chemical defenses, transforming them into potent weapons against fungal threats. But a fungus has evolved a way to deactivate those defenses, tipping the balance back in the tree’s favor.

Spruce trees are packed with phenolic compounds, natural chemicals that help protect them from harmful fungi. Scientists at the Max Planck Institute for Chemical Ecology in Jena set out to understand how these defenses move through the forest food web. Their focus was the spruce bark beetle (Ips typographus), an insect that consumes these compounds while feeding on tree tissue. The researchers asked an intriguing question: could the beetles reuse the tree’s own chemical defenses to protect themselves from fungal infections?

Bark beetles strengthen tree defenses for their own use.

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