Science - USA (2020-05-22)
power (P≡ P s|fs| (^2) ) are conserved. Nonlin- earity in the off-diagonal coupling term is negligible. Consider a periodically ...
peaked on a single site, it is possible to probe them in experiments by means of single-site excitation (i.e., by coupling light ...
In a second set of experiments, we used a similar photonic lattice with maximum prop- agation distancezmax=1.5z 0 instead of 2z ...
CORONAVIRUS Projecting the transmission dynamics of SARS-CoV-2 through the postpandemic period Stephen M. Kissler^1 , Christine ...
( 27 – 30 ). Treatments that reduce the proportion of infections that lead to severe illness could have a similar effect of redu ...
clear correlation with incidence in prior sea- sons, consistent with experimental results showing substantial waning of immunity ...
be possible if SARS-CoV-2 induced 70% cross- immunity against them, which is the same estimated level of cross-immunity that HCo ...
R 0 was reduced by up to 60% for a fixed du- ration of time (up to 20 weeks) or indefinitely starting 2 weeks after pandemic est ...
in the late autumn and winter. None of the one-time interventions was effective at main- taining the prevalence of critical case ...
theR 0 atthetimeofpandemicestablishment: If establishment occurs in the autumn when theReis rising, which could occur in countri ...
maydifferbyage,wedidnothavesuffi- cient data to parameterize an age-structured model. We also did not directly model any effect ...
The authors are aware that prolonged dis- tancing, even if intermittent, is likely to have profoundly negative economic, social, ...
TROPICAL FOREST Long-term thermal sensitivity of Earth’s tropical forests Martin J. P. Sullivan1,2*, Simon L. Lewis1,3, Kofi Aff ...
and photosynthesis can acclimate under sustained temperature increases ( 15 – 17 ), trop- ical trees exhibit physiological plast ...
were modified by an interaction between them [change in Akaike information criterion (DAIC) = 15.4 comparing the full linear mod ...
the thermal threshold—amaximumtem- perature of 32.2°C—where larger long-term reductions in biomass are expected (fig. S14). Of c ...
such as logging and fire can increase the vul- nerability of forest carbon stocks to high tem- peratures. Although many tropical ...
SUPPLEMENTARY MATERIALS science.sciencemag.org/content/368/6493/869/suppl/DC1 Extended Acknowledgments Materials and Methods Fig ...
DEVICE TECHNOLOGY Precise pitch-scaling of carbon nanotube arrays within three-dimensional DNA nanotrenches Wei Sun1,2†, Jie She ...
xandzdirections yielded DNA templates with parallel nanotrenches. The micrometer-scale DNA templates were folded through a multi ...
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