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University of Pennsylvania Chemist and Mathematician Awarded Sloan Research Fellowships
PHILADELPHIA -– Tobias Baumgart, assistant professor of chemistry at the University of Pennsylvania, and Joachim Krieger, assistant professor of mathematics at Penn, have been named Alfred P. Sloan Research Fellows for 2008.
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Penn Engineering Receives $7.5 Million to Develop Cooperation Principles for Robot Teams
PHILADELPHIA –- The University of Pennsylvania School of Engineering and Applied Science has received a five-year, $7.5 million grant to draw inspiration from biological organisms, including humans, in order to create principles of cooperation to control teams of next-generation, unmanned, robotic vehicles.
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Penn Researchers Identify First Sex Chromosome Gene Involved in Meiosis and Male Infertility
PHILADELPHIA -– A team of scientists led by University of Pennsylvania veterinary researchers have identified a gene, TEX11, located on the X chromosome, which when disrupted in mice renders the males sterile and reduces female fecundity. This is the first study of the genetic causes of infertility that links a particular sex chromosome meiosis-specific gene to sterility.
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Policing Cells Demand ID to Tell Friend From Foe, Say University of Pennsylvania Cell Engineers
PHILADELPHIA – University of Pennsylvania scientists studying macrophages, the biological cells that spring from white blood cells to eat and destroy foreign or dying cells, have discovered how these “policemen” differentiate between friend and foe. The paper appears as the cover article in the March 10 edition of the Journal of Cell Biology.
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Surface Dislocation Nucleation: Strength Is But Skin Deep at the Nanoscale, Penn Engineers Discover
PHILADELPHIA –- For centuries, engineers have bent and torn metals to test their strength and ductility. Now, materials scientists at the University of Pennsylvania School of Engineering and Applied Science are studying the same metals but at nanoscale sizes in the form of wires a thousand times thinner than a human hair. This work has enable Penn engineers to construct a theoretical model to predict the strength of metals at the nanoscale.
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Viruses Evolve To Play By Host Rules, According to University of Pennsylvania Researchers
PHILADELPHIA -- Biologists at the University of Pennsylvania and Harvard University have examined the complete genomes of viruses that infect the bacteria E. coli, P. aeruginosa and L. lactis and have found that many of these viral genomes exhibit codon bias, the tendency to preferentially encode a protein with a particular spelling.Researchers analyzed patterns of codon usage across 74 bacteriophages using the concept of a "genome landscape," a method of visualizing long-range patterns in a genome sequence.
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Penn Scientists Find a Protein That Inhibits Ebola From Reaching Out to Infect Neighboring Cells
PHILADELPHIA -– Scientists at the University of Pennsylvania School of Veterinary Medicine have identified a protein, ISG15, that inhibits the Ebola virus from budding, the process by which viruses escape from cells and spread to infect neighboring cells. This study shows for the first time how ISG15 slows the spread of Ebola virus budding, an observation that could help explain how ISG15 successfully inhibits other viruses, including HIV-1 and herpes simplex virus type I.
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Heightened Weighing Discomfort Among Women May Increase Their Health Risks, Penn Study Indicates
PHILADELPHIA -– A new study from the University of Pennsylvania points to increased health risks for women owing to their higher level of discomfort about being weighed in public. The study showed that college-age females, more than their male counterparts, experience high degrees of discomfort at the prospect of being weighed in the presence of others. The study’s authors believe that some women may avoid necessary tests and treatments when a doctor visit includes a step on a public scale.
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University of Pennsylvania Selects Weiss/Manfredi, M+W Zander to Design Singh Nanotechnology Center
PHILADELPHIA -- The University of Pennsylvania has selected the architectural design firm Weiss/Manfredi along with M+W Zander, an engineering and construction firm that specializes in projects with a scientific focus, to design the Krishna P. Singh Center for Nanotechnology.
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Sarah Tishkoff Named Penn's Newest PIK Professor
PHILADELPHIA -– Sarah Tishkoff, a leading global expert in human genetics, has been named the sixth Penn Integrates Knowledge University Professor at the University of Pennsylvania.The announcement was made today by Penn President Amy Gutmann and Provost Ronald Daniels.