scientific american - 1999 02 - a fractual walk down wall street
scientific american - 1999 02 - a fractual walk down wall street
... undeniable.
Pervez Hoodbhoy, a physicist at
Quaid-E-Azam University in Islamabad,
Pakistan, argues that because early-
warning systems are untenable, India or
Pakistan can protect their command-
and-control ... Di-
pankar Bhattacharya of the Raman Research Institute in
Supersoft X-ray Stars and Supernovae Scientific American February 1999 49
COMPACT STARS have colossal escape velociti...
A random walk down wall street
... particularly
appropriate that I emphasize the usual caveat that the above-named individuals are blameless for any
errors of fact or judgment in these pages. Many have warned me patiently and ...
was provided by Barbara Johnson, Barbara Mains, Kay Kerr, Pia Ellen, Claire Cabelus, and especially
Phyllis Durepos. Donald Lamm, Robert Kehoe, and Deborah Makay continued to make my association ....
scientific american - 2003 02 - starquake on a magnetar
... claims
can be partly overcome by aggregating harm
done over a large span of space and time, con-
tends David Grossman, a recent graduate of
Yale Law School and now a law clerk in An-
chorage. In a paper ... This and other statistical properties are a
hallmark of self-organized criticality, whereby a composite sys-
tem attains a critical state in which a small perturbation can...
scientific american - 1993 02 - beating resistance in superconductors
... industrialized nation. In Ethiopia, water is already so
scarce that some women walk miles to Þnd it and lug it home (bottom).
AVAILABLE WATER
1990 2025
NIGERIA
PERU
SAUDI ARABIA
SOMALIA
SOUTH AFRICA
TANZANIA
TUNISIA
ALGERIA
CYPRUS
EGYPT
ETHIOPIA
HAITI
IRAN
ISRAEL
JORDAN
KENYA
LEBANON
LIBYA
MOROCCO
WATER ... population growth will cut in
half the amount of cropland available
per capita by 2...
scientific american - 1994 02 - do aerosols slow climatic warming
... newest
aircraft types: the F-117 Stealth Þght-
ers, F-15s and F-16sÑAmericaÕs top-of-
the-line ÞghtersÑand the sturdy A- 10
ground-attack airplane. Marine and navy
aviation units will augment ... cyclosporine is a natural product
that blocks an intracellular signaling
pathway, as is the experimental immu-
nosuppressant FK506. Ariad Pharma-
ceuticals in Cambridge, Mass., a com-
pany speci...
scientific american - 1995 02 - bubbles turn sound into light
... The AKF has a data-
base that combines on-site surveys and
satellite data into a Koala Habitat Atlas.
It has begun to provide both a census
and an assessment of how much koala
living space has ... there
involves at least a year and a half of
SCIENTIFIC AMERICAN February 1995 41
PARTHA S. DASGUPTA, who was educated in Varanasi, Delhi and Cambridge, is Frank
Ramsey Professor of Ec...
scientific american - 1995 08 - a new theory of aids latency
... coastal areas, ancient
and modern data suggest we may be in
a madhouse again. ÑChristina Stock
R
arely has a medical journal pub-
lished so dramatic an erratum.
A recent issue of Pediatrics de-
scribed ... on.
SCIENTIFIC AMERICAN August 1995 45
PHILIP MORRISON at Los Alamos Labo-
ratory in 1945.
LOS ALAMOS NATIONAL LABORATORY (INSET)UPI/BETTMANN
ATOMIC SCIENTISTS gather at a base...
scientific american - 1996 02 - saving malnourished minds
... New Zealanders
soon noticed RCDÕs potential as an anti-
rabbit agent, and the Australia and
New Zealand Rabbit Calicivirus Dis-
ease Program was born. Funded by
the Commonwealth Science and
Industry ... Scien-
tiÞc American, 415 Madison Avenue, New
York, NY 1001 7-1 111, fax (212) 98 0-8 175
or call (800) 77 7-0 444.
ScientiÞc American- branded products
available. For free catalogue,...
scientific american - 1997 02 - found - 1,000 galaxies
... care
about Tanzania,” she states emphatical-
ly. “I care about Tanzania, I care about
Tanzanians. But I am not a Tanzanian.
I won’t stay there forever. And it needs
to be in the hands of the nationals.”
So ... suggests
the Tanzanians have an unflappable ally.
The daughter of academics, Moehl-
man grew up first on a farm in Iowa and
then in the countryside near Austin, Tex.,
and was always o...
scientific american - 1998 02 - wrapping up the universe
... interest a major appliance manufac-
turer, which has a license to incorporate
the resonator as a compressor in house-
hold refrigerators.
—Philip Yam
News and Analysis26 Scientific American February ... genes that
play a role in neurofibromatosis and
Huntington’s disease as well as the rar-
er ataxia telangiectasia and multiple en-
docrine neoplasia type 1. In 1993, after
turning...