Natural Science

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Media Contact:Jordan Reese | jreese@upenn.edu | 215-573-6604January 20, 2010

Penn Biologists Explain How Organisms Can Tolerate Mutations, Yet Adapt and Survive Environmental Change

PHILADELPHIA –- Biologists at the University of Pennsylvania studying the processes of evolution appear to have resolved a longstanding conundrum: How can organisms be robust against the effects of mutations yet simultaneously adaptable when the environment changes?

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Media Contact:Jordan Reese | jreese@upenn.edu | 215-573-6604January 5, 2010

Penn Awarded Funding for Critical Zone Observatory Project


PHILADELPHIA –- Environmentalists from the University of Pennsylvania have been awarded a $4.35 million, five-year grant from the National Science Foundation to establish a Critical Zone Observatory in Puerto Rico.

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Media Contact:Jordan Reese | jreese@upenn.edu | 215-573-6604January 5, 2010

Penn Study Shows Antidepressants Work Best for Severe Depression, Provide Little to No Benefit Otherwise

PHILADELPHIA –- A study of 30 years of antidepressant-drug treatment data published today in the Journal of the American Medical Association shows that the benefit of antidepressant medication compared with placebo may be minimal or nonexistent in patients with mild or moderate symptoms. University of Pennsylvania researchers say, however, the benefit of medications is substantial for patients with very severe depression.

Study: Sea-Level Rise Quickening Along East Coast

December 29, 2009
Benjamin Horton of the School of Arts and Sciences and his sea-level research are featured, and he is pictured with SAS postdoctoral students Andrew Kemp and Simon Engelhart.
Article Source: Philadelphia Inquirer

A Risk in Treatments Based on Race

December 28, 2009
Sarah Tishkoff of the School of Medicine and the School of Arts and Sciences discusses her genetics research in Africa.
Article Source: Philadelphia Inquirer
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Media Contact:Jordan Reese | jreese@upenn.edu | 215-573-6604December 21, 2009

Genetic Study Led by University of Pennsylvania and Cornell Clarifies African and African-American Ancestry

PHILADELPHIA –- People who identify as African-American may be as little as 1 percent West African or as much as 99 percent, just one finding of a large-scale, genome-wide study of African and African-American ancestry released today.

Radio: Reaction to the Climate Change Talks in Copenhagen

December 21, 2009
Daniel Janzen of the School of Arts and Sciences discusses the Copenhagen Climate Summit.
Article Source: WHYY Radio (Philadelphia)
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Media Contact:Jordan Reese | jreese@upenn.edu | 215-573-6604December 14, 2009

Antidepressants May Change Personality, Leading to Reduced Depression, Says Penn Collaboration

PHILADELPHIA –- Examining data obtained from a University of Pennsylvania and Vanderbilt University psychology study, researchers at these universities and Northwestern University have reported the first placebo-controlled evidence that antidepressant medications—particularly selective serotonin reuptake inhibitors, or SSRIs—can substantially change patients’ personalities. The personality changes also appeared to be linked to long-term improvements in mood.

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Media Contact:Jordan Reese | jreese@upenn.edu | 215-573-6604December 14, 2009

Penn Researchers Find Reproductive Germ Cells Survive and Thrive In Transplants, Even Among Species

PHILADELPHIA –- Reproductive researchers from the University of Pennsylvania and The Children’s Hospital of Philadelphia have succeeded in isolating and transplanting pure populations of the immature cells that enable male reproduction in two species—human spermatogonia and mouse gonocytes. These germline stem cells, taken from testis biopsies, demonstrated viability following transplantation to mouse testes within a controlled laboratory setting.

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Media Contact:Jeanne Leong | jleong@upenn.edu | 215-573-8151December 11, 2009

Researchers Say Cooperation Is Key to Reducing Greenhouse Gases

 

PHILADELPHIA — A study by researchers at the University of Pennsylvania and University of Delaware shows that cooperation between local and regional governments and organizations is crucial to achieve carbon-reduction goals being negotiated in the Copenhagen Conference of the Parties, or COP15, summit.

The findings are presented in a new position paper presented at the summit, “An Urban Agenda for the New Climate,” from Penn’s T.C. Chan Center for Building Simulation and Energy Studies and the University of Delaware Center for Energy and Environmental Policy, or CEEP.