SCIENCE sciencemag.org 15 FEBRUARY 2019 • VOL 363 ISSUE 6428 667CONTENTS
682
CREDITS: (FROM TOP) X. XU
ET AL
.; ANITA KUNZ
15 FEBRUARY 2019 • VOLUME 363 • ISSUE 6428694 & 723
Ultralight insulationINSIGHTS
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. WilcovePERSPECTIVES
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. 709690 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. 708692 USING NEUROSCIENCE TO DEVELOP
ARTIFICIAL INTELLIGENCE
Combining deep learning with
brain-like innate structures may guide
network models toward human-like
learning By S. Ullman694 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 3695 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 5696 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 6NEWS
IN BRIEF
672 News at a glanceIN DEPTH
675 DOE TO LIMIT FOREIGN RESEARCH
COLLABORATIONS
Recent memos describe crackdown
on grantees and on lab scientists with
foreign ties By J. Mervis676 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. Kaiser677 MEASLES EPIDEMIC IN UKRAINE
DROVE TROUBLING EUROPEAN YEAR
War and distrust of vaccines seeded
ongoing outbreak By M. Wadman678 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.aau679 IN INDIA, HINDU PRIDE BOOSTS
PSEUDOSCIENCE
Claims of great technological
achievements in ancient
times trigger ridicule and concern
By S. Kumar680 AIDS PUSH GETS MIXED REVIEWS
Trump’s initiative to “end AIDS”
promises money, focus By J. Cohen681 METRIC PREFIXES SOUGHT FOR
EXTREME NUMBERS
“Ronna” and “quecca” would help
computer scientists keep pace with
big data By D. AdamF 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. WadmanPublished by AAASon February 18, 2019^http://science.sciencemag.org/Downloaded from