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University Of Helsinki

All articles tagged with #university of helsinki

science1 year ago

Unveiling Solar Storm Secrets: Tree Rings and the 1859 Carrington Event

Researchers from the University of Helsinki, in collaboration with other institutions, have studied the 1859 Carrington Event by analyzing radiocarbon concentrations in tree rings in Lapland, providing new insights into solar activity and its effects on Earth. This discovery could help in preparing for dangerous solar storms, as it offers a potential new way of investigating the frequency of Carrington-sized storms and understanding atmospheric dynamics and the carbon cycle. The study also sheds light on the impact of solar activity on radiocarbon production and transport, contributing to the development of increasingly detailed carbon cycle models.

environment1 year ago

"Siberian Surprises: Uncovering Unexpected Aerosol Particle Formation"

University of Helsinki researchers have discovered extensive aerosol particle formation in the West Siberian taiga, challenging previous assumptions and linking it to heatwave conditions and a warming climate. This finding emphasizes the need for more research in boreal forests to inform climate modeling and policy decisions, as aerosol particles play a significant role in the Earth's cooling process and can impact climate through cloud formation and sunlight absorption.

science2 years ago

Unraveling the Mystery: How Genes Emerge from Nothing

Scientists from the University of Helsinki have discovered a mechanism for the formation of new genes from nothing. By studying regulatory genes known as microRNA, the researchers used computer modeling to show that whole palindromes can arise from a single mutation event. This mechanism can explain approximately one-quarter of new genes and is believed to be universal. The findings provide insight into the origins of DNA and shed light on the evolution of RNA genes.