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New Publisher
Rodney A. Erickson, Dean of the Graduate School, was named Vice President
for Research (and publisher of Research/Penn State) in March 1997. As professor
of geography and business administration at Penn State, Erickson teaches
courses in urban geography and metropolitan analysis, dealing with labor
and housing markets, transportation, and the location of public facilities.
His current research explores the structural and spatial influences on an
industry's export behavior. See the profile, "Regional Outlook,"
in the December 1995 R/PS.
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New Math
The key to improving American students' math scores seems to
lie in changing the way mathematics is taught. With a four-year,
$1 million-plus grant from the National Science Foundation, Martin A. Simon
and Ron Tzur of the College of Education are both effecting and studying
that change: Their Mathematics Teacher Development program offers teachers-in-training
at Penn State and elementary and middle school teachers in the State College
Area School District a series of five mathematics education courses to help
them make the transition away from "conventional notions" of mathematics.
Simon and Tzur will study the teachers' progress as a group and through
individual case studies.
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Color Photos
The first photographs were a disappointment. People could not understand
how a medium that rendered shapes and textures in exquisite detail could
fail to render them in realistic color. So photographers turned to older
arts, coloring their images with water colors, oils, chalk, even crayons.
The Painted Photograph, 1839-1914 captures the history of this blend of
arts. Published in 1996 by Penn State Press, the book by Heinz
K. Henisch and Bridget A. Henisch features 131 illustrations and discussions
of such exotica as overpainted death portraits (most commonly of children)
and the origin of the picture postcard.
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Smallest of All?
The smallest bird, a hummingbird, is 64 millimeters long. The smallest mammal,
a shrew, is 35 mm long. Both are large compared to the smallest lizard (a
West Indian gecko) and salamander (a Mexican plethodontid), which measure 17mm,
according to biologists Alberto Estrada (from the Cuban Instituto Investigaciones
Forestales) and Blair Hedges of Penn State. But the smallest tetrapod of
all is a frog. Found by Estrada in the leaf litter on the humid slopes of
Monte Iberia in Cuba (while he was searching for the rare ivory-billed woodpecker),
and determined by Estrada and Hedges to be a new species, Eleutherodactylus
iberia stretches all of 10 mm from snout to vent. Its only rival for the
smallest crown is a similarly diminutive frog from Brazil.
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Heartbeat
Penn State's Hershey Medical Center was awarded $7.7 million from the National
Institutes of Health to test the long-term reli-ability of its new completely
implantable total electric artifical heart. The system consists of a compact
electric motor-driven artificial heart, an implanted electronic control
system, a device for transmitting power across intact skin, and a shoulder-bag
battery pack. Each battery can power the heart for roughly four hours; patients
can also plug the heart's battery pack into an outside power source, for
instance before going to sleep. "This contract allows a very experienced
team that has been in place since 1970 to do all the preclinical studies
to bring the electro-mechanical artificial heart to the point where we can
apply to the Food and Drug Administration in the year 2000 for permission
to test the device in humans," said William S. Pierce, director of
surgical research at Hershey. The device is designed for five-year reliability
and is expected to allow a human patient to lead a relatively normal lifestyle.
Five calves have now lived more than 100 days with the device; one lived
for 160 days.
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Take the Bus
You pay the phone bill, the electric bill, the water bill, the garbage bill
why not the bus bill? An undergraduate honors thesis by Jennifer
Huey, now a graduate student in marketing, suggests that a monthly payment
system (with a discount for high users) might make more people take the
bus. "People feel they immediately receive most of the benefits of
car travel," Huey found, while bus riders "feel they immediately
receive most of the disadvantages. You have to wait outside even in nasty
weather, have exact change, and maybe stand up the whole ride
in crowded conditions. So the fact that using the bus reduces pollution
and congestion just doesn't overcome the potential inconveniences for most
people." Huey worked with Peter Everett in the Smeal College of Business
Administration.
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Sensing Failure
"Smart" sensors can and ought to be used to prevent sudden cardiac
death or broken bones due to osteoporosis, according to Robert J. Hansen
of the Applied Research Lab (ARL). "We recognize that people are not
machines and that this is not an easy problem." Yet he believes that
many of the sensors, signal processors, automated reasoning systems, and
data fusion methods in modern weapons and surveillance systems could be
used to combat human disease. Hansen chairs one of eight Predictive Diagnostic
Teams studying the possibility; the teams were assembled in 1996 by Sandia
National Laboratory under the sponsorship of the Koop Foundation and DARPA.
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Elephants as Dinosaurs
Elephants aren't extinct, but as the last of the Proboscideans their decline
looks a lot like that of the dinosaurs, according to undergraduate Joey
Eichelberger and paleontologist Roger Cuffey. During the late Miocene, some
30 types of mammoths, mastodons, stegodons, and elephants roamed the earth;
five million years later there are two species left. "Interestingly,
at their height dinosaurs also have a diversity of about 30 species,"
Cuffey says. "If we look at the last five million years before extinction
for both dinosaurs and proboscideans, we find a surprisingly similar pattern
of extinction." Comparing them, "we can learn something about
the decline of the dinosaurs from the more recent decline of the elephants."
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La Nausée
Nausea means different things to different people. What one might call queasiness,
another identifies as butterflies. Feeling upset, lightheaded, ill
it's all lumped under nauseous. In a multi-year study of 1,695 students,
graduate student Eric Muth and his colleagues identified 17 descriptors
to medically define nausea. These clustered into three groups: somatic or
body distress (lightheadedness is one kind), gastrointestinal distress (queasiness),
and emotional distress (upset). Being able to separate the various components
of nausea "will allow researchers and clinicians to differentiate what
was previously assumed to be a homogeneous state or condition and to focus
on appropriate treatments," write Muth and his coauthors, gastroenterologist
Kenneth Koch and psychologist Robert Stern.
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Bored is Bad
Freed from homework and given time to pursue their own interests, many teens
show creativity and promise. Others just get bored. And then what do they
do? In a survey of 2,756 high school students, Linda Caldwell and Edward
Smith of the College of Health and Human Development found that "41
percent of the females and 59 percent of the males in the bored' group
also said they spent their free time on anti-social pursuits." Only
8 to 9 percent of the students overall were bored. Twice as many said they
used their free time to actively reject adult authority. But it was the
crossover that the researchers found troubling and not only for social
peace. "These two factors in tandem were also associated with higher
rates of smoking, alcohol abuse, and attempting suicide."
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