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Science Magazine August 22 2008
22 August 2008 | $10
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CONTENTS
Volume 321, Issue 5892
COVER
Using sunlight to rearrange the chemical
bonds of water into hydrogen and oxygen, as
in photosynthesis, would constitute a practical
way to store solar energy as a fuel. Such an
energy source will depend on new catalysts
that promote this fuel-forming reaction
cheaply and efficiently. See page 1072.
Photo illustration: Paul Montie
(images: iStockphoto.com; Getty Images)
DEPARTMENTS
1015
1016
1020
1022
1023
1025
1103
1104
EDITORIAL
1019
by Donald Kennedy
1026
LETTERS
An Editor’s Checklist R. W. Guillery
1039
1028
1028
1040
1029
1030
1042
S. Greenhalgh, reviewed by E. A. Mueggler
1031
1043
Population M. Connelly, reviewed by J. C. Caldwell
1032
1042
1044
1035
R. J. Scholes et al.
1036
PERSPECTIVES
1046
T. D. Wilson and Y. Bar-Anan
>> Report p. 1100
1047
P. J. Armitage
>> Report p. 1060
1048
1050
C. A. Dyker and G. Bertrand
>> Report p. 1069
1051
B. E. Lyon, A. S. Chaine, D. W. Winkler
1052
C. J. Arntzen
CONTENTS
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SCIENCE
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CONTENTS
SCIENCE EXPRESS
PHYSICS
Quantum Communication with Zero-Capacity Channels
G. Smith and J. Yard
Two quantum communication channels, each of which is so noisy that it has
zero-capacity to independently transmit information, can do so when used together.
DEVELOPMENTAL BIOLOGY
Chemokine Signaling Controls Endodermal Migration During Zebrafish
Gastrulation
S. Nair and T. F. Schilling
During zebrafish gastrulation, chemokines are required for integrin-dependent
adhesion of endodermal cells to mesoderm, a role distinct from their action as
chemoattractants.
CELL BIOLOGY
High-Quality Binary Protein Interaction Map of the Yeast Interactome
Network
H. Yu et al.
Comparison of existing methods for mapping protein-protein interactions in yeast
cells shows that the high-throughput approaches are complementary to one another.
PHYSICS
Coupled Superconducting and Magnetic Order in CeCoIn 5
M. Kenzelmann et al.
Unlike other superconductors, magnetic ordering coexists with and is stabilized by
superconductivity in the exotic superconductor CeCoIn.
BREVIA
ATMOSPHERIC SCIENCE
1059
J. M. Roberts et al.
Laboratory studies affirm that the oxidation of chloride ions in
aerosols by N 2 O 5 is a significant source of chlorine in the troposphere,
a major reactant that helps form ozone.
1060
I. A. Bonnell and W. K. M. Rice
Simulations show that the disruption of a molecular cloud by a
black hole can lead to the formation of nearby stars with eccentric
orbits, explaining observations in our Galaxy.
>> Perspectiv e p. 1047
PHYSICS
1054
L. H. Royden, B. C. Burchfiel, R. D. van der Hilst
>> News story p. 1028
1062
J. G. Danzl et al.
A coherent Raman pumping scheme cools cesium molecules
to a state with minimal rotational energy, needed for producing
cold molecular Bose-Einstein condensates.
MATERIALS SCIENCE
1066
K.-C. Chen, W.-W. Wu, C.-N. Liao, L.-J. Chen, K. N. Tu
The presence of twinned grains at grain boundaries reduces
current-induced diffusion of atoms in small copper wires,
which can produce voids or even breaks.
CONTENTS
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SCIENCE
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TECHNICAL COMMENT ABSTRACTS
PALEONTOLOGY
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CONTENTS
REPORTS CONTINUED...
CHEMISTRY
1069
1088
Y. Wang et al.
Carbene ligands stabilize diatomic silicon without oxidizing it,
an unusual motif for a light element.
>> Perspective p. 1050
CHEMISTRY
1072
K. Ishii et al.
When the centromere is removed from a yeast chromosome, a new
one forms near the end of the chromosome, over a cluster of poorly
expressed genes.
NEUROSCIENCE
1092
M. W. Kanan and D. G. Nocera
A catalyst that precipitates in situ when cobalt ions are reduced
in a phosphate buffer efficiently forms oxygen from water needed
for electrochemical applications.
ATMOSPHERIC SCIENCE
J. Brechbühl, M. Klaey, M.-C. Broillet
A mysterious ganglion at the tip of the nose is an olfactory subsystem
that senses alarm pheromones in mice.
CELL BIOLOGY
1095
1075
L. Sang, H. A. Coller, J. M. Roberts
For quiescent cells to periodically divide and then rest, a member
of the Notch signaling pathway HES1 must be present; this protein
is also activated in some tumors.
PSYCHOLOGY
O. Pauluis, A. Czaja, R. Korty
An analysis of global atmospheric circulation from 1970 to 2004
shows that more mid-latitude air rose into the upper troposphere
than current models would suggest.
MICROBIOLOGY
1100
1078
S. Galdi, L. Arcuri, B. Gawronski
Unexpectedly, consciously expressed voting choices predict later
unconscious preferences, showing that unconscious and conscious
cognition is a two-way street.
>> Perspective p. 1046; Science Podcast
D. A. Rasko et al.
A small, nontoxic antibiotic candidate interferes with bacterial
detection of the host and inhibits infection, in a therapeutic
approach that may avoid development of resistance.
>> Science Podcast
IMMUNOLOGY
1081
O. Feinerman et al.
Variations in component levels of the antigen-induced signaling
pathway affect the final response of activated immune cells,
conferring flexibility on the system.
VIROLOGY
1084
1086
R. Ferrari et al.
Upon infection, an adenovirus protein causes global epigenetic
changes in the host that repress antiviral responses and
differentiation and activate cell-cycle genes.
SCIENCE (ISSN 0036-8075) is published weekly on Friday, except the last week in December, by the American Association
for the Advancement of Science, 1200 New York Avenue, NW, Washington, DC 20005. Periodicals Mail postage (publication No.
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CONTENTS
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SCIENCE
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ONLINE
Head-turner.
NOW
HIGHLIGHTS FROM OUR DAILY NEWS COVERAGE
Oh, Brad, You’re So . . . Symmetrical
Balanced bodies are more attractive, study shows.
Ancient Beavers Take Silver in Log-Chomping Olympics
Fossilized logs peg today’s beavers as the true lumberjacks.
Sniffing for Mr. Right
Birth control could change a woman’s sense of the perfect man.
A better retirement for scientists.
CAREERS
FREE CAREER RESOURCES FOR SCIENTISTS
Measuring responses to mechanical force .
Tooling Up: Defying Gravity
D. Jensen
To succeed in science—especially in industry—intellectual
brilliance may be necessary, but it’s not sufficient.
A Comfortable Retirement
G. Sinha
European countries are working to improve pensions for mobile
scientists.
Science Careers Poll Results: A Realistic Readership
J. Austin
Grad students and postdocs are guardedly optimistic about their
career prospects.
From the Archives: Choosing a Thesis Lab
S. Brass
For M.D./Ph.D. students, the thesis-lab choice poses special
challenges.
SIGNALING
THE SIGNAL TRANSDUCTION KNOWLEDGE ENVIRONMENT
PROTOCOL: Application of Fluorescence Resonance Energy
Transfer and Magnetic Twisting Cytometry to Quantify
Mechano-Chemical Signaling Activities in a Living Cell
S. Na and N. Wang
Get detailed instructions for delivering biologically relevant
mechanical stress to individual cells and observing the intracellular
signaling activities that ensue.
PRESENTATION: Defining Drug Targets in Yeast
Haploinsufficiency Screens—Application to Human
Translational Pharmacology
M. Roberge
Identifying targets of drugs in yeast using genome-wide
drug-induced haploinsufficiency is a viable approach to predicting
drug targets in humans.
PODCAST
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Podcast to hear about a new
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conscious decisions, updating
a U.S. climate change model,
and more.
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VOL 321 22 AUGUST 2008
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