Tag: Faculty of Arts and Sciences
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Science & Tech
A pancake, not a doughnut, shapes distant galactic center
Astronomer Lincoln Greenhill (Harvard-Smithsonian Center for Astrophysics) and colleagues have found direct evidence for a “pancake” of gas and dust at the center of Circinus — a thin, warped disk…
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Science & Tech
Australian shale tells tale of layered seas
Harvard researchers have found important clues about the Earth’s environment 1.5 billion years ago. Their results present quite a different picture from present times, in which oceans have oxygen-rich waters…
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Science & Tech
State-of-the-art solar model tracks eruption
The Sun may appear to be a bright, steadily shining orb, but it is actually a seething cauldron of hot gases prone to violent eruptions. The most dramatic eruptions are…
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Science & Tech
Do we live in a “stop and go” universe?
At the 202nd meeting of the American Astronomical Society, Robert Kirshner (Harvard-Smithsonian Center for Astrophysics), on behalf of the international High-z Supernova Search Team led by Brian Schmidt (Mount Stromlo…
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Health
New ways found to fight anthrax
John Collier, Presley Professor of Microbiology and Molecular Genetics at Harvard Medical School, began tinkering with anthrax molecules in 1989. He looked into a powerful electron microscope and, for the…
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Science & Tech
Astronomers link gamma-ray bursts, supernovae
Gamma-ray bursts are incredibly bright flashes of high-energy radiation that likely signal the birth of black holes. Bursts occur at random locations scattered across the sky, and few last more…
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Science & Tech
Looking for the meaning of life at the bottom of the sea
Charles Langmuir, Harvard professor of geochemistry, loves going to sea. “It’s tremendously stimulating, wonderful, exciting, and eye-opening,” he says enthusiastically. “Every time I’ve gone since 1984, I’ve seen things I’ve…
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Science & Tech
Area universities enhance regional economy
Harvard and seven other Greater Boston research universities took center stage in their role as the area’s special economic advantage: magnets for talent and investment that infuse more than $7…
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Science & Tech
Professor honored for ongoing environmental research
Harvard Professor Jack Spengler and MIT professor Mario Molina shared the $250,000 Heinz award, which recognized the independent bodies of work by Spengler and Molina, although coincidentally the researchers are…
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Science & Tech
Spotlight on the Dark Ages
“Medievalists are just beginning to be aware of the implications of the revolutions now occurring in the life sciences for the knowledge of the past,” says Michael McCormick, the Francis…
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Science & Tech
Keys to the highway
Even though they have a massive effect on the natural world, roads have been pretty much ignored by ecologists, who prefer to focus on open areas – the territory between…
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Science & Tech
First Milky Ways found at edge of universe
One key question that has puzzled astronomers for decades is: When did the first stars and galaxies form after the Big Bang occurred? The answer — very quickly! Astronomers Rennan…
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Health
Wide variation in physician career satisfaction seen across local markets
Physician career satisfaction levels are relatively consistent from year to year, and a clear majority of physicians nationally are satisfied with their careers. However, a survey showed significant variation in…
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Science & Tech
New moons found around Neptune
Astronomers have discovered three new moons of Neptune, boosting the number of known satellites of the gas giant to 11. These moons are the first to be discovered orbiting Neptune…
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Health
Medical texts and other fictions
In the 19th century, hysteria was considered one of the most common disorders afflicting women. Doctors advised parents to keep their daughters from riding horseback, eating vanilla, or reading novels,…
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Health
Scientists identify hundreds of worm genes that regulate fat storage
Findings by Harvard researchers, published in the Jan. 16, 2003 issue of Nature, represent the first survey of an entire genome for all genes that regulate fat storage. The research…
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Health
Study finds frequent consumption of alcohol linked to lower risk of heart attack in men
Men who drank moderate amounts of alcoholic beverages three or more times a week had a risk of myocardial infarction 30 to 35 percent lower than nondrinkers. The observational study,…
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Science & Tech
Young star cluster found aglow with mysterious X-ray cloud
Known as RCW 38, a star cluster covers a region about 5 light years across. It contains thousands of stars formed less than a million years ago and appears to…
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Science & Tech
Matthew Shair imitates, improves on nature
Matthew Shair and his students work in “protein trafficking.” Genes in living cells carry instructions for making proteins essential to life. These proteins have to get from place to place…
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Campus & Community
Building circuits measured in molecules
Yu Huang, a doctoral student in Professor Charles Lieber’s lab, has used fluid flows to arrange tiny bits of wires that are just billionths of a meter wide into millimeter-long…
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Science & Tech
Researchers regenerate zebrafish heart muscle
A research team led by Mark T. Keating showed that zebrafish can regenerate heart muscle within two months after a severe injury. The team, from the Howard Hughes Medical Institute…
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Health
Nuts lower diabetes risk
Women in a study who reported eating nuts at least five times per week reduced their risk of type 2 diabetes by almost 30 percent compared to those who rarely…
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Health
Strict enforcement of lead abatement policies saves communities money
Exposure to lead is determined by blood tests, and measured in micrograms of lead per deciliter of blood. The Centers for Disease Control and Prevention has set a “level of…
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Science & Tech
Scientists look inside antimatter
“We have obtained the first glimpse inside an antihydrogen atom, and this is a significant step on the way to precision measurements that will allow matter/antimatter comparisons to be made,”…
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Science & Tech
McElroy says it’s time to stop seeing global warming as political issue
Michael B. McElroy, Gilbert Butler Professor of Environmental Studies and director of Harvard’s Center for the Environment, is among the scientists who since the 1970s have been using paleoclimatic data…
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Health
Long-term memory not fixed until after age one
When does long-term memory develop? This was a natural question for Conor Liston, a Harvard senior, and his mentor Jerome Kagan, Starch Research Professor of Psychology. Liston conducted experiments under…
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Science & Tech
Missy Holbrook investigates the world of plants
Every day an oak tree moves hundreds of gallons of water up from the soil and out, in evaporated form, through its leaves. “Mechanically, it’s a pretty substantial feat,” says…
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Health
Starship memories
Psychologists are at odds over the idea that people can forget traumatic events then “recover” intact memories of the trauma years later. On one side are clinicians, who observe that painful memories can be repressed, banished from a trauma survivor’s consciousness until they’re “recovered” with the help of certain psychotherapeutic techniques in adulthood. Memory researchers,…
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Science & Tech
Beetle mania
Grain weevils alone cost the global economy about $35 billion, or a third of the world’s grain crop, every year. Various other beetle species damage dozens of crops including bamboo,…