Science - USA (2021-11-05)

laboratories has enabled interlaboratory com- parisons to improve the accuracy of^14 C mea- surements ( 25 , 26 ). Extending the ...

These realizations allow access to covariance information on^14 C levels in adjacent years for use in subsequent modeling studie ...

harm to telecommunications, navigation systems, air and space travel, and electrical power grids. Systematic solar activity meas ...

activity changes into the last ice age. This longer-term perspective might be crucial be- cause memory effects due to the carbon ...

a prominent^10 Be peak in marine sediment records ( 73 , 74 ). Although comparisons of^14 C,^10 Be, and^36 Cl with paleomagnetic ...

interhemispheric^14 C gradient can be studied by comparing^14 C in subfossil trees collected in both hemispheres. Further, plank ...

Improving our^14 C estimates Annual-resolution NH^14 C measurements are currently available on less than 20% of the time scale b ...

of the^14 C record. This would potentially permit detection of short-term geomagnetic events and the resolution of hypothesized ...

J. Geophys. Res. 121 , 8125–8136 (2016). doi:10.1002/ 2016JD025034 E. Bard, B. Hamelin, R. G. Fairbanks, A. Zindler, Calibratio ...

ACKNOWLEDGMENTS We thank E. Rhodes and S. Quegan for insightful comments that improved our proposal; F. Adolphi for discussion o ...

Yes, I would like more informationaboutjoiningthe AAAS 1848 Society. PLEASECONTACT MEAT: Name: Address: City: State: Zip code: C ...

REVIEW SUMMARY ◥ MEMBRANES Subatomic species transport through atomically thin membranes: Present and future applications Piran ...

REVIEW ◥ MEMBRANES Subatomic species transport through atomically thin membranes: Present and future applications Piran R. Kidam ...

( 39 ). In this context, emerging electronics ap- plications such as the use of graphene and h-BN as tunnel barriers for spintro ...

experimental conditions ( 10 ). The measured increase in proton conductivity with temper- ature (Arrhenius dependence) indicated ...

micrometer-scale mechanically exfoliated graphene (~3 mS cm−^2 )andh-BN(~100mScm−^2 ) separating liquid electrolytes (0.1 M HCl, ...

will require scalability over much larger areas and will need higher levels of homogeneity in terms of layer numbers, film cover ...

second approach, a single nucleus of the 2D material is grown larger in size without the nucleation of additional domains by car ...

feasibility analysis. Studies are also needed to evaluate long-term durability and chem- ical stability of 2D materials under re ...

Isotope separation and nuclear technologies Isotopes of hydrogen (hydrogen H, deuterium D, and tritium T) are widely used for nu ...