Quantcast

Latest University of Lausanne in Switzerland Stories

Image 1 - Developmental Differences Controlled By Rapidly Evolving Genes
2011-09-19 10:15:28

  Genes essential to producing the developmental differences displayed by social insects evolve more rapidly than genes governing other aspects of organismal function, a new study has found. All species of life are able to develop in different ways by varying the genes they express, ultimately becoming different shapes, sizes, colors and sexes. This plasticity permits organisms to operate successfully in their environments. A new study of the genomes of social insects provides...

9f39db1c250d8b36acd7d5cb6d65fefc
2011-02-11 08:25:00

By Michael C. Purdy, Washington University in St. Louis A parasite and a virus may be teaming up in a way that increases the parasite's ability to harm humans, scientists at the University of Lausanne in Switzerland and Washington University School of Medicine in St. Louis report this week in Science. When the parasite Leishmania infects a human, immune system cells known as macrophages respond. However, some Leishmania strains are infected with a virus that can trigger a severe response in...

0ded5143e0972f8f2a85398d5e0d156d1
2011-01-19 05:35:00

A new study finds that too much, or too little, Internet use may be linked to depression among teens.  The research showed that teens who spent no time online, as well as those who were heavy Internet users, were at increased risk of depression symptoms. Dr. Pierre-Andre Michaud and colleagues at the University of Lausanne in Switzerland surveyed 7,200 participants aged 16 to 20 years old about the frequency of their Internet use. Those who said they were online more than two hours per...


Word of the Day
humgruffin
  • A terrible or repulsive person.
Regarding the etymology of 'humgruffin,' the OED says (rather unhelpfully) that it's a 'made-up word.' We might guess that 'hum' comes from 'humbug' or possibly 'hum' meaning 'a disagreeable smell,' while 'gruffin' could be a combination of 'gruff' and 'griffin.'