Science - 31 January 2020
catalyst system in the late 1960s. The combi- nation of relatively high pressures and tem- peratures needed, along with the assu ...
NEUROSCIENCE Local D2- to D1-neuron transmodulation updates goal-directed learning in the striatum Miriam Matamales^1 , Alice E. ...
Extinction groups (fig. S3, C and D, and table S2). However, density-based cluster analysis showed that taD2- and taD1-SPNs foll ...
compounds known to induce robust and wide- spread intracellular signaling in each system ( 8 ). Systemic injection of raclopride ...
and J). The combination of both drugs, how- ever, resulted in a high density of taD2-SPNs and a low density of taD1-SPNs through ...
of double-labeled SPNs (Fig. 4, H and I, and table S4). The percentages of double- and single- labeled neurons indrd1a-Cre mice ...
to evaluate the role of D2-SPNs in flexible learning that should not overtly depend on a negative reward prediction error. We in ...
conceived the study and designed the experiments. M.M. and J.B.-G. performed behavioral experiments. J.B.-G. performed surgeries ...
REPORT ◥ THERMAL CONDUCTIVITY Ultrahigh thermal conductivity in isotope-enriched cubic boron nitride Ke Chen^1 , Bai Song^1 †‡, ...
spectroscopy to identify the isotope composi- tions (Fig. 1D). As the average mass of boron increases from c^10 BN to c^11 BN, t ...
in order to compare with cBN ( 22 ). We found reasonable agreement within uncertainty be- tween our measured, calculatedkand ref ...
This ultrahigh thermal conductivity was achieved by removing the strong phonon- isotope scattering that occurs in natural cBN. A ...
S. Liet al.,Science 361 , 579–581 (2018). F. Tianet al.,Science 361 , 582–585 (2018). T. Feng, L. Lindsay, X. Ruan,Phys. Rev. B ...
ORGANIC CHEMISTRY Catalyst-controlled doubly enantioconvergent coupling of racemic alkyl nucleophiles and electrophiles Haohua H ...
electrophiles (Fig. 1A, ii) ( 13 , 14 ). In contrast, the present method is effective for nucleophilic substitutions by a family ...
Huoet al.,Science 367 , 559–564 (2020) 31 January 2020 3of5 Fig. 2. Enantioconvergent substitution reactions of racemic nucleoph ...
Huoet al.,Science 367 , 559–564 (2020) 31 January 2020 4of5 Fig. 3. Doubly enantioconvergent substitution reactions of racemic e ...
The products of these enantioconvergent couplings were readily converted into other useful families of enantioenriched compounds ...
CRYSTALLOGRAPHY Crystal symmetry determination in electron diffraction using machine learning Kevin Kaufmann^1 , Chaoyi Zhu^2 , ...
we sequentially stacked aseries of alternating convolutional and pooling layers. We organized the feature maps with the units in ...
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