Through
11/26
Science & Technology
Researchers at Penn Uncover Mechanism Behind Blood Stem Cells’ Longevity
The blood stem cells that live in bone marrow are at the top of a complex family tree. Such stem cells split and divide down various pathways that ultimately produce red cells, white cells and platelets.
Five Penn Faculty Earn Distinction as AAAS Fellows
Five faculty members from the University of Pennsylvania have been named fellows of the American Association for the Advancement of Science.
Penn Dental Medicine Team Identifies Molecule Critical to Healing Wounds
Skin provides a first line of defense against viruses, bacteria and parasites that might otherwise make people ill. When an injury breaks that barrier, a systematic chain of molecular signaling launches to close the wound and re-establish the skin’s layer of protection.
Four Penn Students Named Emerging Leaders in Science and Society Fellows
Four University of Pennsylvania graduate students have been named to the inaugural class of Emerging Leaders in Science and Society Fellows. ELISS is sponsored by the American Association for the Advancement of Science.
Vagelos Gift Ensures Penn's Leadership in Energy Research
With a gift of $15 million, University of Pennsylvania trustee emeritus P. Roy Vagelos, C’50, Hon’99, and his wife, Diana, parents ’90, are continuing to ensure Penn’s leadership in energy research by endowing two professorships dedicated to this critically important field.
Penn Produces Graphene Nanoribbons With Nanopores for Fast DNA Sequencing
The instructions for building all of the body’s proteins are contained in a person’s DNA, a string of chemicals that, if unwound and strung end to end, would form a sentence 3 billion letters long.
Evolution Can Select for Evolvability, Penn Biologists Find
Evolution does not operate with a goal in mind; it does not have foresight. But organisms that have a greater capacity to evolve may fare better in rapidly changing environments. This raises the question: does evolution favor characteristics that increase a species’ ability to evolve?
A Tale of Two Genes: Penn Team Elucidates Evolution of Bitter Taste Sensitivity
It’s no coincidence that the expression “to leave a bitter taste in one’s mouth” has a double meaning; people often have strong negative reactions to bitter substances, which, though found in healthful foods like vegetables, can also signify toxicity. For this reason, the ability to sense bitterness likely played an important role in human evolution.
Penn and Drexel Team Demonstrates New Paradigm for Solar Cell Construction
For solar panels, wringing every drop of energy from as many photons as possible is imperative. This goal has sent chemistry, materials science and electronic engineering researchers on a quest to boost the energy-absorption efficiency of photovoltaic devices, but existing techniques are now running up against limits set by the laws of physics.
Researchers at Penn Add Another Tool in Their Directed Assembly Toolkit
An interdisciplinary team of University of Pennsylvania researchers has already developed a technique for controlling liquid crystals by means of physical templates and elastic energy, rather than the electromagnetic fields that manipulate them in televisions and computer monitors. They envision using this technique to direct the assembly of other materials, such as nanoparticles.
In the News
Scientific American
Grumpy voters want better stories. Not statistics
In a Q&A, PIK Professor Duncan Watts says that U.S. voters ignored Democratic policy in favor of Republican storytelling.
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WHYY (Philadelphia)
Climate policy under a second Trump presidency
Michael Mann of the School of Arts & Sciences discusses how much a president can do or undo when it comes to environmental policy.
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Interesting Engineering
Superhuman vision lets robots see through walls, smoke with new LiDAR-like eyes
Mingmin Zhao of the School of Engineering and Applied Science and colleagues are using radio signals to allow robots to “see” beyond traditional sensor limits.
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Technical.ly Philly
A sneak peek inside Penn Engineering’s new $137.5M mass timber building
Amy Gutmann Hall aims to be Philadelphia’s next big hub for AI and innovation while setting a new standard for architectural sustainability.
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Salon.com
Exxon CEO wants Trump to stay in Paris climate accord
Michael Mann of the School of Arts & Sciences voices his concern about the possibility that the U.S. could become a petrostate.
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Associated Press
Amid Earth’s heat records, scientists report another bump upward in annual carbon emissions
Michael Mann of the School of Arts & Sciences says that total carbon emissions including fossil fuel pollution and land use changes such as deforestation are basically flat because land emissions are declining.
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The Wall Street Journal
How can we remove carbon from the air? Here are a few ideas
Jennifer Wilcox of the School of Engineering and Applied Science and Kleinman Center for Energy Policy at the Weitzman School of Design says that the carbon-removal potential of forestation can’t always be reliably measured in terms of how much removal and for how long.
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Associated Press
California air regulators approve changes to climate program that could raise gas prices
Danny Cullenward of the Kleinman Center for Energy Policy at the Weitzman School of Design says that many things being credited in California’s new climate program don’t help the climate.
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Times of India
Self shocks turn crystal to glass at ultralow power density: Study
A collaborative study by researchers from the School of Engineering and Applied Science has shed new light on amorphization, the transition from a crystalline to a glassy state at the nanoscale.
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Interesting Engineering
U.S. achieves billion-fold power-saving semiconductor tech; could challenge China
A collaborative effort by Ritesh Agarwal of the School of Engineering and Applied Science and colleagues has made phase-change memory more energy efficient and could unlock a future revolution in data storage.
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