“We found that mating was always ended by a catapulting, which is so fast that common cameras could not record the details clearly,” says Shichang Zhang of Hubei University in Wuhan, China. The reason the males catapult themselves is simple: to avoid being eaten by the female in an act of sexual cannibalism. The …
The study, led by Dr Euripides Kantzas, a senior research associate in the Leverhulme Centre for Climate Change Mitigation at the University, provides the first detailed analysis of the potential and costs of greenhouse gas removal by enhanced weathering in the UK over the next 50 years. The authors show this technique could make a …
In bees, males are produced from unfertilized eggs. Female bees, on the other hand, are created produced through the mating of males and females. The research team wanted to find out what factors might be contributing to the decline in the bee population. It focused on early stages of the insects’ reproduction. Horned mason bees …
Car air purifier works against indoor air pollution. For ordinary people, 80% of their life is spent indoors. The harm caused by indoor air pollution to the human body is far greater than that caused by outdoor air pollution, especially for the elderly, children, pregnant women, patients with weakened immune systems. Their resistance is weak. …
In a study published today they quantified regional fossil fuel CO2 emissions reductions during the Covid-19 lockdowns of 2020-2021, using atmospheric measurements of CO2 and oxygen (O2) from the Weybourne Atmospheric Observatory, on the north Norfolk coast in the UK. The estimate uses a new method for separating CO2 signals from land plants and …
Car air purifier removes PM2.5. The main pollutants we studied were PM2.5, PM10 and sulfur dioxide. The main source of PM2.5 production is the residues discharged from combustion in the process of daily power generation, industrial production, and vehicle exhaust emissions, and most of them contain toxic substances such as heavy metals. Fine particles …
Wherever people are living, hormones used in e.g. contraceptives or agriculture enter the wastewater. Steroid hormones, such as sex hormones and corticosteroids, may accumulate in the environment. Inspired by Solar Cell Technology For years, Schäfer has studied water processing by nanofiltration. For this purpose, she uses polymer membranes with nanometer-sized pores. However, nanofiltration requires …
Ozone is a gas composed of three oxygen atoms. Many studies have described ozone in the stratosphere, and its role in shielding people from the sun’s harmful ultraviolet radiation. Closer to ground level, in the troposphere, ozone is harmful to humans. New research led by UC Riverside scientists reveals this lower level ozone is …
Traditional solar cells are made of silicon, which has high power conversion efficiency and good stability. But they are relatively expensive and are reaching their practical and economic photovoltaic efficiency limits. Perovskites are regarded as the leading contender to replace silicon as the material of choice for solar panels. Perovskite solar cells are expected to …
It’s been several decades since ecologists realized that graphing the diet-size relationship of terrestrial mammals yields a U-shaped curve when aligning those mammals on a plant-to-protein gradient. As illustrated by that curve, the plant-eating herbivores on the far left and meat-eating carnivores on the far right tend to reach sizes much larger than those of …
