"Our World" theme
week on "Our World" ... A new study says anti-smoking programs save
money, not just lives ... The complex ecology of New York's Hudson River ... and reconstructing life in ancient Egypt
DEPAUW: "And then the Roman envoy just drew a
circle in the sand around him and said, 'you get as much time as you want, but
then when you leave the circle I want your answer.'"
scraps of papyrus tell all ... the psychology of traffic engineering, and more.
I'm Art Chimes. Welcome to VOA's science and technology magazine, "Our
Control Programs Reduce Health-Care Costs
smoking reduces your risk of heart attack, cancer and other tobacco-related
diseases, and it also has a benefit for your community — lower health care
costs. Faith Lapidus reports.
LAPIDUS: Stan Glantz directs the Center for Tobacco
Control Research and Education at the University of California, San Francisco.
In 1988, voters in the state approved spending tax dollars from an increased
cigarette tax on an anti-smoking effort. Glantz says California's Tobacco
Control Program was innovative for its time.
GLANTZ: "Rather than simply telling people not
to smoke because it was bad, it had very, very aggressive media, to create an
environment to discourage smoking and help smokers quit. It had a strong
emphasis on second-hand smoke and creating smoke-free environments, and was
also supplemented with a 'quit line.'"
LAPIDUS: Glantz and his colleagues used statistical
analysis to assess the program's performance during its first 15 years.
GLANTZ: "And what you find is if you had not
had the California Tobacco Control Program, a lot more cigarettes would have
been smoked and health care costs would have been higher. So, at the end of 15
years, we could compare what we estimate the health care costs would have been
had the program not been there, and compare them to what they actually
LAPIDUS: Glantz says the effect is gigantic. A
program that cost less than $2 billion over 15 years saved $86 billion in
health care expenditures. And those costs began to drop in the program's first
notes that similar tobacco control programs will soon become more common around
GLANTZ: "There's something called the Framework
Convention on Tobacco Control, which is the first global public health treaty.
It's sort of like the Kyoto Accords for tobacco. And 157 countries have
ratified it, not including the United States, and one of articles in there
commits the ratifying countries to develop and implement large-scale tobacco
LAPIDUS: He says California's experience has shown
that you can lower health care costs by reducing tobacco-induced disease, and
that successful health care reform requires a large-scale tobacco control
paper is published in the August issue of PLoS Medicine, an open-access
Traffic Signs May Make for Safer Driving
recent article in The Atlantic Monthly magazine caught my eye. It was about
traffic safety, something that's an issue pretty much anywhere people drive.
author, who is a psychology professor, not a traffic engineer, argues that
efforts to make our roads safer have actually made them more dangerous.
Staddon, who wrote the article, joins us now from the campus of Duke University
in North Carolina, where he is James B. Duke professor in psychology. Welcome
to Our World, Prof. Staddon.
STADDON: "Glad to be here."
Q: If you don't mind, I want to start with the
question of, what business does a psychologist have in the world of traffic
STADDON: "Well, probably as much business as
anybody else. Because it really is a psychological problem in the sense that
most of what affects how people drive is psychological. The engineering turns
out to be incidental. And in fact, in my article, I refer to something called
Smeed's Law, named after an English boffin of the 1940s, who found that the
traffic accident rates in different countries depended only on the numbers of
people and the numbers of cars. In other words, the details of the traffic
conditions were almost irrelevant."
Q: Well, you begin the article in The
Atlantic with a description of North Glebe Road in Arlington, Virginia,
which is just across the river from Washington. Actually, very close to where I
live. What is notable about that road as it approaches a bridge over the
STADDON: "Well, the first thing you can say
about the road as you approach this bridge is, it's very safe. But as you come
around a gentle curve, all you see is a relatively small sign, saying that the
speed limit is now 25 miles an hour [40 kph].
noticed this when I was driving with a local resident, who suddenly braked in
the middle of a clear road. And as we went around the curve — there is a curve
there, and it might make some sense to have a sign saying so, but as you go
'round the curve what you see is a policeman with a radar gun, just clipping
people as they come around, going too fast. Well of course, they're not really
going too fast. They're going too fast for a 25-mile-an-hour limit, and it's
become a nice source of revenue for the Arlington County council."
Q: So, what would be a better approach then?
STADDON: The way this problem is solved in England,
for example, and many European countries, is just to have a big warning sign.
So in front of you would be a big set of arrows pointing to the right,
indicating that there's a curve there. That would be much, much better. In the
first place it would be in front of the driver, where he or she is looking. And
second of all, it wouldn't lead the local government into the temptation of using
it as a revenue source."
Q: So you generalize in the article about sort
of a British and American approach to traffic signage and generally the way the
roads are organized. Can you describe the differences?
STADDON: "Well, the differences are really huge.
For example, there are almost no stop signs in England. I mean, you really have
to look around to find a stop sign. So what do they have instead?
what they have instead are little dashed lines on the road. So when you come
to, let's say, a T-junction, if the road you're coming to has the right of way,
there'll be just these two dashed lines in the road to indicate, watch out! The
road you're about to enter has right of way. So, no stop signs. The signs tend
to be right on the road so that if, for example, there's a non-standard speed
limit, the sign will be right on the road in front of you. It'll be a great,
big '40' —
Actually painted on the road?
STADDON: "Painted right on the road, so you
don't have to look for the signs."
Q: That's the British system. What about in the
United States. It's quite a bit different here.
STADDON: "Well, in the United States there will
be stop signs everyplace. And the result is that people no longer totally
believe a stop sign. I mean it obviously doesn't bear much relationship to
safety anymore. It's a method of what the Europeans call traffic calming."
Q: As a psychologist, what's actually happening
STADDON: The problem with traffic signage in this
country is there are severe consequences for not attending to it. If you roll
through a stop sign, no matter how safe it may be, you get punished for it. So
people are systematically trained not to pay attention to road conditions, I
think that's the fundamental flaw in the whole system. If you keep telling
people, yeah, you can see there's no traffic; doesn't matter, you were supposed
to stop, they become stupid. And I think that's what's happening here."
You know, we've been talking mostly about the United States and Britain, but
most of our listeners are in developing countries. In the traveling I've done
there tells me that traffic, particularly in cities, is really a mess. So I
wonder about whether your observations about human behavior and traffic would
apply in places like Lagos or Cairo or Bangkok.
STADDON: "And Calcutta, yeah. Those places, they
have no signs, or if they do have signs, people take them merely as hints. I
mean, I've driven in Mexico City and it's really quite funny. In the daytime,
nobody stops at stop signs. But they do stop at night because after all
somebody could be coming, and they could be killed. So it's a very contingent
kind of situation. What I can say to developing countries is, for goodness sake
coordinate your policy. Don't do what the U.S. has done and allow every little
locality to put up whatever sign it wants because the result would be an
increase — less safety, not more safety."
Dr. John Staddon, psychology professor at Duke University, thanks very much for
STADDON: "Oh, it's my pleasure."
of the Week features JohnMcCain.com
again for our Website of the Week, when we showcase interesting and innovative
two major U.S. political parties are holding their presidential nominating
conventions, and to help you get to know the candidates, we're featuring their
websites here on Our World.
week we introduced you to Barack Obama's site.
as Republicans gather in St. Paul, Minnesota, for their convention, we take a
look at JohnMcCain.com
candidates' websites are a great way to learn about the men who want to be
president. At John McCain's website you can read about his experience as a
prisoner of war and his years of service in the U.S. Senate. And it's where the
candidate lays out his views on issues from the economy to immigration to
McCAIN: "One of the reasons why I feel so
strongly about America's image in the world is because I think we'll win this
struggle the same way we won the Cold War, and that's to prove our superiority,
our values, our ideals, and our goals are far greater than this threat of
radical Islamic extremism that challenges us."
is also a great place to get a sense of how Americans experience a political
campaign. You can watch the same TV ads that we get to see — some are negative
ads, and others focus on John McCain's strengths.
McCAIN: "McCain puts the country first.
He's a straight shooter. A conservative who has worked across the aisle. Broad
appeal to the middle of the electorate. Steadiness. Consistency."
["Michigan Endorsed," January 2008]
like to line up endorsements, and so on JohnMcCain.com you'll hear what former
secretary of state Henry Kissinger has to say.
KISSINGER: "I think I was one of the early people
who urged him to run for president. And I believed then, and I believe now that
he's the best candidate to serve our nation in an extremely difficult and
site also serves as a gathering place for various categories of supporters,
from Asian Americans and small business owners, to fans of NASCAR auto racing.
about one of the two men hoping to be the next U.S. president at
JohnMcCain.com, or get the link to this and more than 200 other Websites of the
Week from our site, voanews.com/ourworld.
MUSIC: John Rich — "Raisin' McCain"
listening to VOA's science and technology magazine, Our World. I'm Art Chimes
and Protecting the Ecology of New York's Hudson River
Hudson River Valley, north of New York City, is one of the most complex and
diverse river ecosystems in America. Striking the proper balance between
protection of this unique natural resource and its use by the public is a major
challenge. That is the focus of Hudsonia, a non-profit organization that
promotes scientific research, policy analysis, and better public understanding
of the Hudson River environment. VOA's Adam Phillips reports.
PHILLIPS: It is nearing sunset, at the end of a golden
summer day. Erik Kiviat peers through his binoculars at the riot of animal and
plant life on Tivoli South Bay. The 100-hectare bay is a small inlet off the
Hudson River, the great eastern New York State waterway that flows over 500
kilometers south out of the Adirondack Mountains, through the state capital at
Albany, on to New York City's harbor and out to the Atlantic Ocean.
a biologist, is co-founder and director of Hudsonia. From his place within the
reeds, he sees a complex natural ecosystem: great egret birds, small killifish,
dragonflies, beetles, frogs, wild rice, bulrushes, yellow iris, and scores of
other animal and plant species. He also sees train tracks, river barges, and
other signs of the Hudson River's important role over the past three centuries
as a major commercial artery. Kiviat points to the water chestnut leaves
covering most of the bay's surface as an example of how human activities have
changed the river's ecology.
KIVIAT: "And this water chestnut is an
introduced plant from Eurasia. It's been in North America for maybe 150 years.
And it does very well in these shallow, sunny, nutrient-rich, alkaline bodies
of water that are so common around human habitations. And that's a process that's
been accelerating because we now have so much globalization of commerce and
other human activities that plants and animals and fungi and other things get
carried back and forth from one part of the world to another."
PHILLIPS: Kiviat's organization is dedicated to two
separate yet allied purposes: solid environmental research of the Hudson
watershed, and the enlightened use of the region's environmental resources. The
two often appear to conflict. For example, Kiviat acknowledges that people are
often upset by any visual change to a landscape they are familiar with. On the
other hand, change is a given in any natural environment. Sometimes that change
is slow. Sometimes it is abrupt.
responses to change can vary widely. For instance, those who love the aesthetic
quality of open water may dislike the blanket of water chestnuts that has
covered most of Tivoli South Bay over the past half century. Recreational
fishers, on the other hand, know that the underwater stems of the water
chestnut are a favored habitat for snails, insects, and other invertebrates,
which help to attract fish.
KIVIAT: "But at the same time, there isn't much
dissolved oxygen under that dense mat of water chestnut in the summer. So the
fish can't get in there very effectively to eat all that good stuff that's in
there waiting for them."
PHILLIPS: Kiviat says that just as human actions over
the years have disturbed the Hudson ecology, they can also help now to bring it
into better balance:
KIVIAT: "If we could break that 90-hectare bed
of water chestnut up into smaller patches of water chestnut, interspersed with
shallow open water that doesn't have water chestnut, we would, in theory, be
able to get some more dissolved oxygen into the water, make some space for
fish, let the fish get into all that good food that's in the water chestnut,
and then let people who fish — the fishers — get to the fish."
PHILLIPS: Kiviat says Hudsonia scientists conduct
extensive field research up and down the river. That field work forms the basis
of the group's recommendations for more sustainable and responsible management
of the Hudson:
KIVIAT: "We're not an advocacy program in the
sense that we don't take sides in land use planning controversies. We don't
say, 'this is a project that should or shouldn't be built on this particular
site.' We try to take good scientific data about our environment and about
people. And then we use that information to help people do a better job of
doing the things that their community values."
PHILLIPS: Still, challenges such as climate change,
invasive species and human-caused contamination continue to threaten the
ecology of the Hudson Valley region. While good science and timely planning may
help mitigate the worst dangers, prospects for the overall health of the Hudson
Valley are uncertain. Near Red Hook New York, this is Adam Phillips reporting
for Our World.
Clues to Ancient Egyptian Life in Papyrus Scraps
if somebody in the distant future, say the year 4008, finds your daily
paperwork — letters, receipts, shopping lists — and tries to figure out what
your life was like. That's just what's happened to some Egyptians born more
than 2000 years ago. Researchers at Stanford University in California are
finding that scraps of writing used as packing material are helping shed light
on some ancient lives. Lonny Shavelson reports.
SHAVELSON: Egyptian mummies were preserved in loops of
white linen. But that's not all they were wrapped in. Like a delicate wine
glass packed for shipping today, a mummy was often cushioned inside and out
with crinkled up paper. Back then, it was crinkled up papyrus. And not new
papyrus, but recycled — papyrus people had written on.
DOBBIN: "Well, here I have a papyrus, it's
written in demotic, which is the final phase of the Egyptian language."
SHAVELSON: Tasha Dobbin, an Egyptology doctoral student
at Yale, is one of 18 international students at Stanford's Papyrological
Institute this summer. She's holding an Egyptian papyrus — 2,200 years old,
from before the reign of Cleopatra — in her hands.
DOBBIN: "It's actually really exciting. You
sort of dream to get an opportunity like this."
SHAVELSON: The papyrus was removed from a mummy. These
ragged, brown, insect-chewed scraps with faded ink scrawlings, were donated to
Stanford around 1920 by an alumnus who found them in an antiquities store in
MANNING: "And one of the documents said he
purchased the text from what he calls a Chinaman."
SHAVELSON: Joseph Manning, a papyrologist at Stanford,
says that from 1920 until just a few years ago, the papyri were forgotten,
waiting to be rediscovered.
MANNING: "These things have been sitting in
folders, on a shelf, for the last 60 years. Before the conservation process, it
looks like a piece of paper with mud on it."
SHAVELSON: Manning had no idea what the papyri
contained. So he played out a hunch, and brought a specialist in papyrus
cleaning to Stanford, and after they were cleaned…
MANNING: "They were spectacular. The ink was as
if it were written yesterday. Very bright, black against this beautiful papyrus
color, light brown."
SHAVELSON: Spectacular in appearance, but Professor
Manning still didn't know what they said.
MANNING: "The languages are difficult, very
difficult handwriting sometimes. You can't just sit down and read a text in an
hour. You sometimes have to spend a year, maybe reading a word or two, putting
it away for a while, coming back to it."
SHAVELSON: And that's where the students came in.
Stanford happened to be hosting this year's summer institute in papyrology.
Manning put the participants to work reading the papyri.
RICHTER: "My name is Barbara Richter, I'm a
Ph.D. candidate in Egyptology at UC Berkeley. Well this is a marriage contract,
actually a record of the woman's dowry that she's bringing to her husband. But
in the case of a divorce, she gets that entire dowry returned to her. Very
similar to a prenup."
SHAVELSON: The papyri were mostly mundane — farming
receipts, land agreements. But one tiny scrap held a stunning revelation about
the Greek general, Antiochus, who conquered nearly all of Egypt in 170 BC.
DEPAUW: "I'm now taking one of the papyri out
of the box. Yeah, it's here. This is actually the one which is so
SHAVELSON: Papyrology professor Mark Depauw, visiting
Stanford from the Netherlands, explains that historians said that when
Antiochus took over Egypt, he didn't have the audacity to dethrone the Egyptian
king or pharaoh, but kept the pharaoh in place. Or so it's been thought. Depauw
now holds in his hands a minute papyrus fragment — with text referring to
Antiochus as the Pharaoh.
DEPAUW: "This is one of two documents which
actually proves that he went so far and made himself Pharaoh."
SHAVELSON: Why is this seemingly minor point of major
significance? Because, says Depauw, the Greeks and Romans were competing for
Egypt. And the Greek Antiochus, by declaring himself Pharaoh, so irritated the
Romans that a Roman general confronted him and demanded he withdraw from Egypt.
Antiochus said he'd think about it.
DEPAUW: "…and then the Roman envoy just drew a
circle in the sand around him and said 'you get as much time as you want but
then when you leave the circle I want your answer.'"
SHAVELSON: That was the birth of the expression
"drawing a line in the sand," and of line-in-the sand diplomacy. So
now we know more about what led up to that historical moment. All thanks to a
faded scrap of papyrus removed from an Egyptian mummy, taken to London by a man
from China, and deciphered by a Dutch papyrologist in California for the
summer. For Our World, I'm Lonny Shavelson, Stanford, California.
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Voice of America
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Lapidus edited the show. Eva Nenicka is the technical director.
this is Art Chimes, inviting you to join us online at voanews.com/ourworld or
on your radio next Saturday and Sunday as we check out the latest in science
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