New research shows that equatorial waves — pulses of warm ocean water that play a role in regulating Earth’s climate — are driven by the same dynamics as the exotic materials known as topological insulators. (more…)
Many people have heard of Pangaea, the supercontinent that included all continents on Earth and began to break up about 175 million years ago. But before Pangaea, Earth’s landmasses ripped apart and smashed back together to form supercontinents repeatedly. This cycle has been going on for at least the last 3.0 billion years of Earth’s history, regulating our planet’s geography, climate, and carbon cycles. (more…)
Freiburger Forscher entschlüsseln erstmalig den Atlas der Genregulatoren in menschlichen Herzzellen
Die Information für den Aufbau von Körperzellen wird im Erbgut – in der DNA – gespeichert. Hier findet man alle Baupläne für die mehr als 20.000 verschiedenen Proteine des menschlichen Körpers. Jede einzelne Zelle alleine benötigt mehrere Tausend verschiedene Proteine für ihre Funktion. Fasst man alle Protein-Baupläne zusammen, passt diese Information auf weniger als zwei Prozent der gesamten DNA. Wofür sind die übrigen 98 Prozent des Erbguts nötig? Hier liegen die Schalter, die alle Gene in ihrer Aktivität kontrollieren. (more…)
Throughout our lives, personal experiences lead to our individual fears — the clown Pennywise made that very clear in this year’s film reboot of the Stephen King novel “It.” (more…)
A UA-led team has found that a protein from a new gene can fold like more ancient proteins, contrary to what had been believed.
A yeast protein that evolved from scratch can fold into a three-dimensional shape — contrary to the general understanding of young proteins — according to new research led by the University of Arizona. (more…)
UD study looks to clean up subsurface phosphorus risk assessment
When it comes to advancing nutrient management planning for croplands across the United States, it is important to evaluate phosphorus indices to ensure accurate phosphorus loss risk assessment. (more…)
Sexuelle Fortpflanzung ist die dominante Reproduktionsform im Tier- und Pflanzenreich. Trotzdem gibt es Arten, die sich teilweise oder ausschließlich asexuell vermehren. Überraschenderweise sind diese asexuellen Arten oft weiter verbreitet als ihre nächsten sexuellen Verwandten. (more…)
Harris scholar Alex Fouirnaies examines high value on access to agenda setters
Every year companies spend hundreds of millions of dollars on elections in the United States. Yet studies of roll-call votes have shown that donations to specific office holders do not regularly yield the votes donors want. So why do industries continue to pour billions into the coffers of legislators? (more…)
