SCIENCE sciencemag.org 15 FEBRUARY 2019 • VOL 363 ISSUE 6428 667
CONTENTS
682
CREDITS: (FROM TOP) X. XU
ET AL
.; ANITA KUNZ
15 FEBRUARY 2019 • VOLUME 363 • ISSUE 6428
694 & 723
Ultralight insulation
INSIGHTS
POLICY FORUM
686 LONG DELAYS IN BANNING TRADE
IN THREATENED SPECIES
Scientific knowledge should be applied
with more urgency
By E. G. Frank and D. S. Wilcove
PERSPECTIVES
689 REVEALING A MICROBIAL
CARCINOGEN
An E. coli–derived colibactin-DNA
adduct is detected in intestinal tissues
By R. M. Bleich and J. C. Arthur
▶ RESEARCH ARTICLE P. 709
690 PATHOLOGY-LINKED PROTEASE
CAUGHT IN ACTION
Structural snapshots of g-secretase
yield insight for drug development
By S. F. Lichtenthaler and G. Güner
▶ RESEARCH ARTICLE P. 708
692 USING NEUROSCIENCE TO DEVELOP
ARTIFICIAL INTELLIGENCE
Combining deep learning with
brain-like innate structures may guide
network models toward human-like
learning By S. Ullman
694 HYPERBOLIC 3D ARCHITECTURES
WITH 2D CERAMICS
A hexagonal boron nitride aerogel
has high resistance to thermal and
mechanical shock
By M. Chhowalla and D. Jariwala
▶ R E P O R T P. 7 2 3
695 MOVING THROUGH THE CROWD
Atoms or molecules can diffuse rapidly
on surfaces covered by other adsorbants
By O. M. Magnussen
▶ R E P O R T P. 7 1 5
696 EARTH’S RUGGED LOWER MANTLE
Seismic data reveal kilometer-scale
topography of the lower-mantle
boundary By C. Houser
▶ R E P O R T P. 7 3 6
NEWS
IN BRIEF
672 News at a glance
IN DEPTH
675 DOE TO LIMIT FOREIGN RESEARCH
COLLABORATIONS
Recent memos describe crackdown
on grantees and on lab scientists with
foreign ties By J. Mervis
676 CONTROVERSIAL FLU STUDIES CAN
RESUME, U.S. PANEL SAYS
Critics complain of lack of transparency
in decision that allows efforts to create
potentially risky virus strains
By J. Kaiser
677 MEASLES EPIDEMIC IN UKRAINE
DROVE TROUBLING EUROPEAN YEAR
War and distrust of vaccines seeded
ongoing outbreak By M. Wadman
678 HOW RABBITS ESCAPED A DEADLY
VIRUS—AT LEAST FOR NOW
Same genetic changes found in rabbits
on two continents By E. Pennisi
▶ RESEARCH ARTICLE BY J. M. ALVES ET AL.
10.1126/science.aau
679 IN INDIA, HINDU PRIDE BOOSTS
PSEUDOSCIENCE
Claims of great technological
achievements in ancient
times trigger ridicule and concern
By S. Kumar
680 AIDS PUSH GETS MIXED REVIEWS
Trump’s initiative to “end AIDS”
promises money, focus By J. Cohen
681 METRIC PREFIXES SOUGHT FOR
EXTREME NUMBERS
“Ronna” and “quecca” would help
computer scientists keep pace with
big data By D. Adam
F E AT U R ES
682 THE TWITTER WARRIOR
#MeToo provocateur BethAnn
McLaughlin battles on behalf
of women in STEM—but her own
job is in peril By M. Wadman
Published by AAAS
on February 18, 2019^
http://science.sciencemag.org/
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