Science - USA (2019-02-15)

with the U2 and U6 snRNAs forming a triple helix that binds two catalytic Mg2+ions (fig. S7). In the human P complex, the newly ...

of the 3′SS onto the 5′SS is stabilized by the Prp8 alpha-finger and beta-finger—another feature similar to that of yeast (Fig. ...

b-sandwich domain interact with the Prp8 RNase H domain (Fig. 4, D and E), allowing Cactin to project a series of charged residu ...

stabilizes the branch helix in the yeast P complex (fig. S10B) but which dissociates during the C to C transition in humans (Fig ...

REPORT ◥ SURFACE SCIENCE Density fluctuations as door-opener for diffusion on crowded surfaces Ann-Kathrin Henß^1 , Sung Sakong^ ...

fluctuations of the CO layer open paths on which the O atom can move with surprisingly low activation energy. Three consecutive ...

range investigated, theinfinite sums could be terminated atn 1 =100andn 2 = 10. An analog equation has previously been derived f ...

cage originally occupied by the O atom. The net effect is a complete O/CO site exchange. However, the barrier of the first step ...

DEVICE TECHNOLOGY Printed subthreshold organic transistors operating at high gain and ultralow power Chen Jiang1,2, Hyung Woo Ch ...

as the semiconductor (Fig. 1A), which exhibits fast growth (<1 min) of large crystals (>50mm) and has a lower HOMO level t ...

boosts the switching speed in logic circuits, it does not benefit the low-power, low-frequency operation of analog sensor interf ...

exhibited more efficientV-Isignal amplification than the other reported devices (Fig. 2E). Theusabilityofinkjet-printedOTFTsisco ...

REFERENCES AND NOTES R. A. Street,Adv. Mater. 21 , 2007–2022 (2009). A. Nathanet al.,Proc. IEEE 100 , 1486–1517 (2012). K. Nomu ...

CERAMICS Double-negative-index ceramic aerogels for thermal superinsulation Xiang Xu1,2, Qiangqiang Zhang^3 , Menglong Hao4,5*, ...

chemical vapor deposition (CVD) process (Fig. 1B and figs. S2 to S4). For simplicity, we focus our discussion on hBNAGs. The res ...

thickness (Fig. 3D and fig. S19) and macroscale morphology to optimize the mechanical robustness of hBNAGs. The resilienceof the ...

walls in the frameworks. Meanwhile, the highly porous frameworks provide sufficient deforma- tion space for these thermally exci ...

pristine value. Moreover, the interfaces con- necting adjacent pores (Fig. 4E) create additional thermal resistance. For graphen ...

QUANTUM OPTICS Photoelectrical imaging and coherent spin-state readout of single nitrogen-vacancy centers in diamond Petr Siyush ...

vapor–deposited(CVD)diamondwithanitrogen concentration below 0.15 parts per billion and which contained only native NV centers. ...