The $e^+e^-\to\gamma\chi_{cJ}$ ($J=0,1,2$) processes are studied at center-of-mass energies ranging from 3.773 to 4.600 GeV, using a total integrated luminosity of 19.3 fb$^{-1}$ $e^+e^-$ annihilation data accumulated with the BESIII detector BEPCII. We observe for first time $e^+e^-\to\gamma \chi_{c1,c2}$ signals $\sqrt{s}=$ 4.180 GeV statistical significances 7.6$\sigma$ and 6.0$\sigma$, resp...

We present refined coordinates and proper-motion data for the high proper-motion (HPM) stars in the Luyten Half-Second (LHS) catalog. The positional uncertainty in the original Luyten catalog is typically greater than 1000 and is often greater than 3000. We have used the digital scans of the POSS I and POSS II plates to derive more accurate positions and proper motions of the objects. Out of th...

The DsD ∗ s , D ∗D∗, and D∗ sD ∗ s P -wave channels in the energy region of the Y (4260) charmonium structure are studied in a coupled-channel model applied to J = 1−− cc̄ resonances. The three channels exhibit enhancements that peak at 4.27 GeV, 4.26 GeV, and 4.33 GeV, respectively, having widths ranging from 80 to 200 MeV. However, no S-matrix poles are found, other than those associated with ...

BACKGROUND This study investigates the relationships between life events and chronic physical conditions among left behind farmers, a newly emerged weak group in vast rural China. METHODS The study collected information about life events, chronic physical conditions, blood pressure and fasting blood glucose from 4681 famers living in 18 randomly selected villages (Lu'an, Anhui, China) from ea...

Most common cameras use a CCD sensor device measuring a single color per pixel. Demosaicking is the interpolation process by which one can infer a full color image from such a matrix of values, thus interpolating the two missing components per pixel. Most demosaicking methods take advantage of inter-channel correlation locally selecting the best interpolation direction. The obtained results loo...

Species range maps based on extents of occurrence (EOO maps) have become the basis for many analyses in broad-scale ecology and conservation. Nevertheless, EOO maps are usually highly interpolated and overestimate small-scale occurrence, which may bias research outcomes. We evaluated geographical range overestimation and its potential ecological causes for 1158 bird species by quantifying EOO m...

The heats of reaction of trypsin with soybean (Kunitz), ovomucoid, and lima bean inhibitors have been measured at pH 5.0 and 10’ and 25”. All the reactions were endothermic, with AH ranging from 8.6 Cal per mole for the lima bean inhibitor to 15.3 Cal per mole for the soybean inhibitor. Equilibrium constants for the association were calculated from the dependence of residual tryptic activity up...