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Better Ways to Hire, Announce a New CEO

By Guest PostSeptember 21, 2011Economybetter decisions, business professor, corporate jet, firm, information, management, new ceos, self image, steven boivie, strategic noise, university of arizona

*Two studies by a UA business professor examine the hiring of CEOs, finding that new CEOs make better decisions when their self image is tied to the firm and that “strategic noise” can soften market response to a new hire.*

Two new papers co-authored by assistant professor of management Steven Boivie at the University of Arizona uncover novel facets of CEO and firm performance.

The first of the papers, out now in the Academy of Management Journal, finds a new remedy to the CEO agency problem. Instead of trying to design incentives and controls to keep corporate leaders acting in the best interest of the company, Boivie and his co-authors demonstrate that boards should try to hire leaders who strongly identify with the company itself. (more…)

This Beetle Uses Eggs as Shields Against Wasps

By Guest PostSeptember 19, 2011Sciencebeetle larva, beetles, charismatic organisms, cocoon, eggs, joseph deas, m amicus, martha hunter, mesquite and acacia trees, mimosestes amicus, national science foundation, novel discovery, palo verde, parasitic wasps, parasitoids, red eyes, seed beetles, southwestern us, trees of tucson, university of arizona, uscana semifumipennis, wasp

*New UA research has discovered that seed beetles from the desert Southwest shelter their broods from attacking parasitic wasps under a stack of dummy eggs.*

They lead modest lives among the palo verde, mesquite and acacia trees throughout the Southwestern U.S., laying their eggs on seed pods and defending the survival of their offspring against the parasitic wasp species that attacks their eggs before their young can develop.

They are the seed beetles Mimosestes amicus, living all around us in the trees of Tucson, and yet remaining all but invisible to our eyes – or nearly so. (more…)

UA Study: Financial Education Creates Positive ‘Snowball Effect’

By Guest PostSeptember 4, 2011Educationaplus, arizona pathways for life success in university students, citi foundation, cumulative education, financial education, financial management, hannah gomez, joyce serido, pamela flaherty, positive financial attitudes and behaviors, positive financial behaviors, snowball effect, soyeon shim, university of arizona, value of parental communication

*According to a UA study, cumulative education leads to more financial knowledge and more positive financial behaviors.*

New research from the University of Arizona shows that high school and college students who are exposed to cumulative financial education show an increase in financial knowledge, which in turn drives increasingly responsible financial behavior as they become young adults.

In fact, researchers at the UA Norton School of Family and Consumer Sciences documented a “snowball effect” that these early efforts exponentially increase the likelihood that students will pursue more financial education as time goes on, including informal learning through books, magazines and seminars. (more…)

Mission Possible or Impossible? UA Space Systems Engineer Has the Answer

By Guest PostSeptember 2, 2011Sciencecarl hergenrother, complex factor, daniel wibben, delta v, extraterrestrial body, extraterrestrial exploration, gene giacomelli, hirise camera, interplanetary exploration, lunar greenhouse project, mdtop, mike cupples, mission design trajectory optimization program, moon express, murat kacira, NASA, osiris rex mission, red planet, roberto furfaro, space missions, space systems engineering laboratory, ssel, university of arizona

*Scientists have endless ideas for extraterrestrial exploration. Some are feasible, some not. In a two-part series, we look at how UA engineer Roberto Furfaro gives the red or green light to space missions. First, searching for Delta-V, the complex factor that makes a space mission viable.*

Our solar system is becoming a familiar backyard, thanks to the University of Arizona’s Lunar and Planetary Laboratory, or LPL, a world leader in interplanetary exploration.

LPL’s Phoenix Mission to Mars scooped up the first evidence of water-ice on the Red Planet, and its HiRISE camera continues to beam stunning images of the Martian landscape back to Earth. (more…)

Organic Photovoltaics: Solar Cells of the Future?

By Guest PostAugust 17, 2011Sciencebyron cocilovo, chemical encapsulation layers, chemical engineering and mathematics, college of optical sciences, effective polymer combinations, electronics, energy, optical sciences, opvs, organic photovoltaics, safatul islam, solar cells, undergraduate researcher, university of arizona

*Undergraduate researcher Safatul Islam is a member of a team in the College of Optical Sciences investigating organic photovoltaics, which can lead to improved electronics.*

As the summer dwindles down, many people eagerly welcome the decline of long sunny days. But for others, this period of shorter days signals the end of the sun’s longest duration of generously giving energy to this region of the world.

Safatul Islam, a University of Arizona sophomore studying chemical engineering and mathematics, is working with researchers to develop better ways to harness the sun’s power for human use. (more…)

NASA Spacecraft Data Suggest Water Flowing on Mars

By Guest PostAugust 5, 2011Sciencealfred mcewen, charles bolden, compact reconnaissance imaging spectrometer for mars, crism, frozen water, high resolution imaging science experiment, hirise, human exploration, mars reconnaissance orbiter, mars southern hemisphere, martian slopes, NASA, red planet, richard zurek, salt deposits, saltiness, shallow subsurface flows, tucson, university of arizona, warm season

PASADENA, Calif. –– Observations from NASA’s Mars Reconnaissance Orbiter have revealed possible flowing water during the warmest months on Mars.

“NASA’s Mars Exploration Program keeps bringing us closer to determining whether the Red Planet could harbor life in some form,” NASA Administrator Charles Bolden said, “and it reaffirms Mars as an important future destination for human exploration.” (more…)

New Technologies (and Tires) Reconstruct Ancient Bison Hunts

By Guest PostAugust 2, 2011Scienceamerican indian, american indian tribes, ancient hunters, benjamin curry, bison kill sites in montana, blackfeet tribe, christopher roos, cliff edge, climate change, dale fenner, humans, jeff jones, jesse ballenger, kacy hollenback, kutoyis archaeological project, kutoyis project, landscape, maria nieves zedeño, matt pailes, meriwether lewis, montana, northern great plains, old tires, prehistoric bison hunting societies, school of anthropology, traditional bison hunt, two medicine valley, university of arizona, william clark

*UA researchers are looking for, among other things, how fire changed the landscape of the Northern Great Plains as ancient hunters went after big game.*

Researchers from the School of Anthropology at the University of Arizona are investigating the complex relationship between climate change and modifications that humans have made to the landscape. And among the tools they are using in the pursuit of this knowledge are a bunch of old tires.

Led by Maria Nieves Zedeño from the UA Bureau of Applied Research in Anthropology, the Kutoyis Archaeological Project is a four-year collaboration focused on prehistoric bison hunting societies in the Northern Great Plains. The project is funded by the National Park Service and the National Science Foundation. (more…)

Sea Squirt Cells Shed Light on Cancer Development

By Guest PostJuly 28, 2011Scienceblood vessels, bradley davidson, cancer cells, cancer therapy, cancerous mutations, cell types, ciona embryo, control mechanisms, elimination processes, embryos, epithelial barriers, growth factors, heart cells, heart progenitor cell, invadopodia, laser microscope, model organism, natural barriers, periods of time, sea squirt, sea squirt ciona intestinalis, tissues, tumors, university of arizona, vertebrates

*Specialized structures used by cancer cells to invade tissues could also help them escape protection mechanisms aimed at eliminating them, a UA-led research team has discovered.*

Delicate, threadlike protrusions used by cancer cells when they invade other tissues in the body could also help them escape control mechanisms supposed to eliminate them, a research group led by led by Bradley Davidson in the University of Arizona’s department of molecular and cellular biology reports in Nature Cell Biology.

Studying embryos of the sea squirt Ciona intestinalis, the researchers discovered that even non-invasive cells make the delicate, highly transient structures known as invadopodia. The group found that future heart cells in the Ciona embryo use invadopodia to pick up chemical signals from their surroundings. These so-called growth factors provide the cells with clues as to where they are in the developing embryo and what type of cell they are supposed to turn into. (more…)

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