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Oozing Through Texas Soil, a Team of Amoebas Billions Strong
By CAROL KAESUK YOON, The New York Times, March 24, 2009
After producing superlatives like the world’s biggest statue of a jackrabbit and the nation’s most unpopular modern-day president, Texas can now boast what may be its most bizarre and undoubtedly its slimiest topper yet: the world’s largest known colony of clonal amoebas.
Scientists found the vast and sticky empire stretching 40 feet across, consisting of billions of genetically identical single-celled individuals, oozing along in the muck of a cow pasture outside Houston.
“It was very unexpected,” said Owen M. Gilbert, a graduate student at Rice University and lead author of the report in the March issue of Molecular Ecology. “It was like nothing we’d ever seen before.”
Scientists say the discovery is much more than a mere curiosity, because the colony consists of what are known as social amoebas. Only an apparent oxymoron, social amoebas are able to gather in organized groups and behave cooperatively, some even committing suicide to help fellow amoebas reproduce. The discovery of such a huge colony of genetically identical amoebas provides insight into how such cooperation and sociality might have evolved and may help to explain why microbes are being found to show social behaviors more often than was expected.
( Read More )
The Doctor's World: A Quandary in Sweden: Criminals in Med School
By LAWRENCE K. ALTMAN, M.D., The New York Times, March 24, 2009
A year ago, Sweden’s most prestigious medical school found itself in an international uproar after it unknowingly admitted a student who was a Nazi sympathizer and a convicted murderer, then scrambled to find a way to expel him.
It is hard to imagine how the case could get any more bizarre. But it has.
The 33-year-old student, Karl Helge Hampus Svensson, having been banished from the medical school of the Karolinska Institute in Stockholm on the ground that he falsified his high school records, has now been admitted to a second well-known medical school — Uppsala, Sweden’s oldest university.
New twists in his and another case highlight the difficulties that three of the country’s six medical schools have had in admitting and dismissing students with serious criminal offenses in just the past two years. The cases resonate far beyond Sweden, raising fundamental questions about who is fit to become a doctor.
( Read More )
Findings: Oversaving, a Burden for Our Times
By JOHN TIERNEY, The New York Times, March 24, 2009
We interrupt this recession to bring you news of another crisis that is much more pleasant to deal with. Now that shoppers have sworn off credit cards, we’re risking an epidemic of a hitherto neglected affliction: saver’s remorse.
The victims won’t evoke much sympathy — don’t expect any telethons — but their condition is real enough to merit a new label. Consumer psychologists call it hyperopia, the medical term for farsightedness and the opposite of myopia, nearsightedness, because it’s the result of people looking too far ahead. They’re so obsessed with preparing for the future that they can’t enjoy the present, and they end up looking back sadly on all their lost opportunities for fun.
( Read More )
By CAROL KAESUK YOON, The New York Times, March 24, 2009
After producing superlatives like the world’s biggest statue of a jackrabbit and the nation’s most unpopular modern-day president, Texas can now boast what may be its most bizarre and undoubtedly its slimiest topper yet: the world’s largest known colony of clonal amoebas.
Scientists found the vast and sticky empire stretching 40 feet across, consisting of billions of genetically identical single-celled individuals, oozing along in the muck of a cow pasture outside Houston.
“It was very unexpected,” said Owen M. Gilbert, a graduate student at Rice University and lead author of the report in the March issue of Molecular Ecology. “It was like nothing we’d ever seen before.”
Scientists say the discovery is much more than a mere curiosity, because the colony consists of what are known as social amoebas. Only an apparent oxymoron, social amoebas are able to gather in organized groups and behave cooperatively, some even committing suicide to help fellow amoebas reproduce. The discovery of such a huge colony of genetically identical amoebas provides insight into how such cooperation and sociality might have evolved and may help to explain why microbes are being found to show social behaviors more often than was expected.
( Read More )
The Doctor's World: A Quandary in Sweden: Criminals in Med School
By LAWRENCE K. ALTMAN, M.D., The New York Times, March 24, 2009
A year ago, Sweden’s most prestigious medical school found itself in an international uproar after it unknowingly admitted a student who was a Nazi sympathizer and a convicted murderer, then scrambled to find a way to expel him.
It is hard to imagine how the case could get any more bizarre. But it has.
The 33-year-old student, Karl Helge Hampus Svensson, having been banished from the medical school of the Karolinska Institute in Stockholm on the ground that he falsified his high school records, has now been admitted to a second well-known medical school — Uppsala, Sweden’s oldest university.
New twists in his and another case highlight the difficulties that three of the country’s six medical schools have had in admitting and dismissing students with serious criminal offenses in just the past two years. The cases resonate far beyond Sweden, raising fundamental questions about who is fit to become a doctor.
( Read More )
Findings: Oversaving, a Burden for Our Times
By JOHN TIERNEY, The New York Times, March 24, 2009
We interrupt this recession to bring you news of another crisis that is much more pleasant to deal with. Now that shoppers have sworn off credit cards, we’re risking an epidemic of a hitherto neglected affliction: saver’s remorse.
The victims won’t evoke much sympathy — don’t expect any telethons — but their condition is real enough to merit a new label. Consumer psychologists call it hyperopia, the medical term for farsightedness and the opposite of myopia, nearsightedness, because it’s the result of people looking too far ahead. They’re so obsessed with preparing for the future that they can’t enjoy the present, and they end up looking back sadly on all their lost opportunities for fun.
( Read More )
