Featured series 
Tag: Science
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Health
Study questions ‘cancer stem cell’ hypothesis in breast cancer growth
A Dana-Farber Cancer Institute study challenges the hypothesis that “cancer stem cells” — a small number of self-renewing cells within a tumor — are responsible for breast cancer progression and recurrence, and that wiping out these cells alone could cure the disease.
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Nation & World
Can science, religion coexist in peace?
Almost 14 billion years after the big bang, and 3.5 billion years since the first bacteria appeared on Earth, humans occupy just one branch of the tree of life. We share an evolutionary limb with other eukaryotes, creatures whose membrane-bound cells carry genetic material. Our biological neighbors developed over time just as we did, by…
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Health
Indonesia’s strategies to fight bird flu run afoul of reality
If Indonesia is able to execute a comprehensive bird flu plan written by the government, it will take great strides toward controlling the outbreak in the sprawling island nation, a visiting professor who has studied the region said Friday (March 9). Unfortunately, there’s little chance of that happening.
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Health
Sleep found to repair and reorganize the brain
Most of us do it every night but we don’t know why. If you miss too many nights, it might kill you. We know why we eat, drink, breathe, and move around, but no one can explain why we need to sleep. What does seven or eight hours of snoozing really do for us? Van…
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Campus & Community
Fryer awarded Sloan Award
Assistant Professor of Economics Roland Fryer Jr. recently received the prestigious Sloan Award in the field of economics.
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Health
HSPH study suggests taking wraps off drug safety data
For years, pharmaceutical companies have sought to restrict public access to drug safety data collected in clinical trials on the basis that it is proprietary information, arguing that competitors could use that information in the development of their own products. However, a number of recent cases of drugs found to have dangerous side effects after…
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Health
Despite their heft, many dinosaurs had surprisingly tiny genomes
They might be giants, but many dinosaurs apparently had genomes no larger than those of a modern hummingbird. So say scientists who’ve linked bone cell and genome size among living species and then used that new understanding to gauge the genome sizes of 31 species of extinct dinosaurs and birds, whose bone cells can be…
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Health
I know just how you feel
When people talk with psychotherapists, the best results occur if both feel similar emotions, when both “like” each other. But do most therapists really connect with patients this way? No one has ever tried to directly measure the biology of empathy between the two.
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Health
At Radcliffe, microbiologist explains ‘biocomplexity’
The scientist who revolutionized the study of cholera paid a visit to Harvard this week. On March 6, microbiologist and oceanographer Rita R. Colwell, a Johns Hopkins University public health researcher, delivered the last in a series of science talks in the 2006-2007 Dean’s Lecture series at the Radcliffe Institute for Advanced Study.
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Health
Obesity runs in families – and friends, too
Having overweight family and friends increases the likelihood someone will become overweight, according to a Harvard researcher who examined obesity and social network data from the long-running Framingham Heart Study.
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Health
Seeing the forest, from the trees
Alain Houle thinks higher-status chimpanzees likely feed on more, higher-quality fruit — found higher up in the tree — than lower-status chimpanzees, which leads to the chimps being in better physical shape and greater breeding success. “I thought I’d be killed,” Houle said later. “They climbed up, looked at me, barked at me, and then…
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Science & Tech
Undergrads to compete at Programming Contest
A group of Harvard undergraduates will travel to Tokyo to compete in the Association for Computing Machinery’s 31st annual International Collegiate Programming Contest (ACM-ICPC) on March 12-16. More than 6,000 teams, representing 1,756 universities from around the globe, participated in the regional competitions last fall. The top 88 teams earned coveted spots on the 2007…
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Health
Common prostate cancer therapy may carry risks
Androgen deprivation therapy – one of the most common treatments for prostate cancer – may increase the risk of death from heart disease in patients over age 65, according to a new study by researchers at Dana-Farber Cancer Institute, Brigham and Women’s Hospital, and other institutions.
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Nation & World
Young scholars show findings at HGSE Student Research Conference
In a basement classroom in Larsen Hall on Friday (Feb. 23), there was everything young learners need: chalkboards, a screen, bright lights, sturdy chairs – and good teachers. In this case, four good teachers – all of them Ed.M. students at the Harvard Graduate School of Education (HGSE). The four were among 230 young scholars…
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Health
Over-the-counter pain relievers increase the risk of high blood pressure in men
Researchers from Brigham and Women’s Hospital (BWH) have found that the three most commonly used drugs in the United States, acetaminophen, ibuprofen, and aspirin, increase the risk of developing high blood pressure in middle-aged men. These findings are published in the Feb. 26 issue of the Archives of Internal Medicine.
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Science & Tech
Medieval Islamic architecture presages 20th century mathematics
Intricate decorative tilework found in medieval architecture across the Islamic world appears to exhibit advanced decagonal quasicrystal geometry – a concept discovered by Western mathematicians and physicists only in the 1970s and 1980s. If so, medieval Islamic application of this geometry would predate Western mastery by at least half a millennium.
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Health
Harvard athletes grow bigger, better hearts
Strenuous exercise can cause a heart to grow as much as 10 percent and its chambers to enlarge, Harvard researchers have discovered after testing the University’s athletes. What they are learning from these studies could someday be applied to advising nonathletes about caring for their hearts.
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Science & Tech
Jackson raps abundance of ‘experts’
In 1973, Shirley Ann Jackson became the first black woman to receive a Ph.D. in physics from the Massachusetts Institute of Technology. Decades – and 38 honorary degrees – later, Jackson is the president of Rensselaer Polytechnic Institute in upstate New York. Her resume includes time as a university researcher (in theoretical elementary particle physics);…
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Campus & Community
Howard Wilson Emmons
Howard Wilson Emmons, Gordon McKay Professor of Mechanical Engineering, Emeritus, and Abbott and James Lawrence Professor of Engineering, Emeritus, the father of and a leading contributor to modern home fire research, died in his 86th year on November 20, 1998.At a Meeting of the Faculty of Arts and Sciences on May 16, 2006, the Minute…
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Health
Adjusting to death of a loved one
“Is my grief normal?” That is one of the most common questions posed by people who have lost a loved one. A new study by Dana-Farber Cancer Institute researchers has helped answer that question by affirming the commonly accepted stages of grief – disbelief, yearning, anger, depression, and acceptance – and the sequence in which…
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Health
Stem cell research sheds light on organ regeneration
The rules governing mammalian organ repair and regeneration are so widely varied as to suggest at first glance that there are no rules: Blood has such an enormous regenerative capacity that you can literally give it away by the pint and be none the worse for wear; rip a hole in your skin and new…
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Health
Practical way to target cancer cell mutations demonstrated
A study led by researchers at Dana-Farber Cancer Institute and Broad Institute of the Massachusetts Institute of Technology and Harvard University provides the first demonstration of a practical method of screening tumors for cancer-related gene abnormalities that might be treated with “targeted” drugs.
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Health
Study: Heed spiritual needs of cancer patients
People with advanced cancer felt they received little or no spiritual support from religious communities and the medical system, according to a new survey. However, those who did receive such support reported a better quality of life.
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Health
Study shows importance of sleep for optimal memory functioning
Harvard researchers have tracked fatigue’s footsteps on the human brain, showing that sleeplessness impairs the ability to learn new information and that abnormal brain function, not reduced alertness, is the cause.
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Health
Sleeping your way to heart health
A new Harvard School of Public Health study indicates that there’s more than just olive oil and red wine keeping heart disease rates down in Mediterranean countries. There’s the naps, too.
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Health
Web quiz helps predict women’s health
Using data collected from more than 24,000 initially healthy American women, researchers from Brigham and Women’s Hospital (BWH) have devised a new Web-based formula called the Reynolds Risk Score that for the first time more accurately predicts risk of heart attack or stroke among women. In addition to usual risk factors like cholesterol, blood pressure,…
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Health
Genome-wide map will help fight diabetes
The Broad Institute of MIT and Harvard, Lund University, and Novartis have announced the completion of a genome-wide map of genetic differences in humans and their relationship to type 2 diabetes and other metabolic disorders. The announcement was made Monday (Feb. 12). All results of the analysis are being made accessible, free of charge, on…
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Health
New findings may increase longevity of stem cells
Identifying the mechanisms that control cell life span is one of the more important questions facing stem cell researchers, indeed, all researchers attempting to understand normal and abnormal cell and organ development. So the recent discovery by a Harvard Stem Cell Institute team that a family of well-known transcription factors plays a major role in…
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Health
Spray-dry vaccine for TB developed
Bioengineers and public health researchers have developed a novel spray-drying method for preserving and delivering the most common tuberculosis (TB) vaccine. The low-cost and scalable technique offers several potential advantages over conventional freezing procedures, such as greater stability at room temperature and use in needle-free delivery. The spray-drying process could one day provide a better…
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Health
Wilson urges alliance to save species
Edward O. Wilson sees a future in which science and religion join forces to save the natural world. Without such an alliance, said the legendary Harvard biologist and author, an alternative future is in store for the human race: one of accelerating environmental cataclysm fueled by overpopulation, deforestation, declining fisheries, and climate change.