Science - USA (2020-06-05)

1122 Immunology

PIRs mediate innate myeloid cell

memory to nonself MHC molecules

H. Dai et al.

PERSPECTIVE p. 1052

1127 Cancer

MTOR signaling orchestrates stress-induced

mutagenesis, facilitating adaptive evolution

in cancer A. Cipponi et al.

1132 Reproductive biology

NELL2-mediated lumicrine signaling

through OVCH2 is required for male fertility

D. Kiyozumi et al.

PERSPECTIVE p. 1053

1135 Molecular biology

Barcoded microbial system for

high-resolution object provenance

J. Qian et al.

PERSPECTIVE p. 1058; PODCAST

1140 Plastic pollution

Seafloor microplastic hotspots

controlled by deep-sea circulation

I. A. Kane et al.

PERSPECTIVE p. 1055

PHOTO: 1441147448/SHUTTERSTOCK

SCIENCE sciencemag.org 5 JUNE 2020 • VOL 368 ISSUE 6495 1033

RESEARCH ARTICLES

1080 Plasmid evolution

Unexpected conservation and global

transmission of agrobacterial virulence

plasmids A. J. Weisberg et al.

RESEARCH ARTICLE SUMMARY; FOR FULL TEXT:

DX.DOI.ORG/10.1126/SCIENCE.ABA

1081 Structural biology

The structure of human CST reveals a

decameric assembly bound to telomeric DNA

C. J. Lim et al.

1086 Chemical physics

Photoelectron spectra of alkali metal–

ammonia microjets: From blue electrolyte

to bronze metal T. Buttersack et al.

PERSPECTIVE p. 1056

1091 Wearable devices

Giant thermopower of ionic gelatin near

room temperature C.-G. Han et al.

REPORTS

1098 Organic chemistry

Iridium-catalyzed acid-assisted asymmetric

hydrogenation of oximes to hydroxylamines

J. Mas-Roselló et al.

1103 Analytical chemistry

Nontargeted mass-spectral detection of

chloroperfluoropolyether carboxylates in

New Jersey soils J. W. Washington et al.

POLICY FORUM p. 1066

1108 Neuroscience

Restoring light sensitivity using tunable

near-infrared sensors D. Nelidova et al.

PERSPECTIVE p. 1057

1114 Topological optics

A fractional corner anomaly reveals

higher-order topology C. W. Peterson et al.

1118 Paleoecology

Thresholds of mangrove survival under rapid

sea level rise N. Saintilan et al.

PERSPECTIVE p. 1050

ON THE COVER

Artistic abstraction of

how ammonia solutions

change with increasing

excess electron con-

centration. Microjets of

liquid ammonia can be

used to track how an

electrically insulating

liquid becomes a metal,

with an accompanying color change from

transparent blue through deeper blue to

bronze. Mapping energy levels spectroscop-

ically and theoretically reveals a gradual

transition from electrolyte to liquid metal.

See pages 1056 and 1086.

Illustration: C. Bickel/Science

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CONTENTS

DEPARTMENTS

1035 Editorial

Patents, economics, and pandemics

By Will Zerhouni et al.

1150 Working Life

No place like home By Guilherme Santos

Science Staff ............................................

New Products ............................................

Science Careers ........................................ 1147

RESEARCH

IN BRIEF

1076 From Science and other journals

REVIEW

1079 Computer science

There’s plenty of room at the Top: What will

drive computer performance after Moore’s

law? C. E. Leiserson et al.

REVIEW SUMMARY; FOR FULL TEXT:

DX.DOI.ORG/10.1126/SCIENCE.AAM

1066 Filling gaps in science exposes

gaps in chemical regulation

Examination of U.S. and EU regulatory

systems raises more questions than answers

By S. C. Gold and W. E. Wagner

REPORT p. 1103

BOOKS ET AL.

1071 Colonialism and its consequences

A ravaged Arctic ecosystem serves as a

warning of the perils of human advancement

By M. E. Hannibal

1072 Where logic meets emotion

A computer scientist gets candid

about her quest to bring empathy

to artificial intelligence By V. Venkatraman

LETTERS

1074 Recovery hopes for the world’s

rarest primate

By H. Liu et al.

1074 Cetaceans under threat

in South China Sea

By S. Li et al.

1075 Tenure and promotion after

the pandemic

By M. Htun

1075 Technical Comment abstracts

1071

Published by AAAS