Sub-wavelength Coherent Imaging of a Pure-Phase Object with Thermal Light

We report, for the first time, the observation of sub-wavelength coherent image of a pure phase object with thermal light,which represents an accurate Fourier transform. We demonstrate that ghost-imaging scheme (GI) retrieves amplitude transmittance knowledge of objects rather than the transmitted intensities as the HBT-type imaging scheme does.Comment: 5 pages, 4 figures; Any comments pls. contact: [email protected]

(E)-2-(2-Chloro-3,3,3-trifluoro­prop-1-en­yl)-N-(2,4-dimethyl­phen­yl)-3,3-dimethyl­cyclo­propane-1-carboxamide

The title compound, C17H19ClF3NO, crystallizes with three mol­ecules in the asymmetric unit. The aromatic ring makes dihedral angles of 38.69 (13), 46.68 (12) and 50.52 (11)° with the plane of the cyclo­propane ring in the three mol­ecules. The crystal packing is stabilized by inter­molecular N—H⋯O hydrogen bonds

Effects of Wenxiao II Decoction on the expression of MCP-1 and VCAM-1 in atherosclerotic rabbits

AbstractObjectiveTo observe the effects of different doses of Wenxiao II Decoction on the expression of monocyte chemoattractant protein-1 (MCP-1) and vascular cell adhesion molecule-1 (VCAM-1) in an experimental model of atherosclerosis in rabbits and to explore the mechanism by which it alleviates atherosclerosis.MethodsSixty 3–4 month-old New Zealand rabbits of both sexes were randomly divided into six groups: simvastain; model; blank; and high-dose, mid-dose, and low-dose Wenxiao II Decoction groups. Except for those in the blank group, all rabbits were fed a high-cholesterol diet. Carotid atherosclerosis was established by balloon-induced injury to the endothelium of the carotid artery in conjunction with consumption of a high-cholesterol diet. After 8 weeks, all rabbits were killed to evaluate the expression of MCP-1 and VCAM-1 by immunohistochemical staining.ResultsExpressions of MCP-1 and VCAM-1 were significantly decreased in all groups except the blank group compared with the model group (P< 0.05). When compared with the simvastain group only variation of MCP-1 expression in low-dose group was not appreciable, and the differences were indistinct (P<0.05). When comparing among Wenxiao II Decoction groups, MCP-1 expression in the mid- and high-dose groups was significantly lower than that seen in the low-dose group (P< 0.01), but there were no differences among three dosage groups with respect to VCAM-1 expression (P>0.05).ConclusionThese data suggested that high, mid, and low doses of Wenxiao II Decoction can inhibit the expression of MCP-1 and VCAM-1, which may prevent the formation of or stabilize atherosclerotic plaques. There may be a direct relationship between the dosage of Wenxiao II Decoction and its therapeutic efficacy

Possible S±S_\pm-wave superconductivity in La3_3Ni2_2O7_7

Recently, the bulk nickelate La$_3$Ni$_2$O$_7$ is reported to show signature of high-temperature superconductivity under high pressure above $14$GPa (H. Sun {\it et al.}, arXiv:2305.09586). We analyze the pairing mechanism and pairing symmetry in a bi-layer Hubbard model with two orbitals in the $E_g$ multiplet. In the weak to moderate interaction regime, our functional renormalization group calculations yield $S_\pm$-wave Cooper pairing with dominant $d_{3z^2-r^2}$-orbital content, triggered by spin fluctuations at wave vectors near $(0.84, 0)\pi$ and $(0.75, 0.75)\pi$, up to $C_{4v}$ symmetry. The gap function changes sign across the Fermi pockets. In the strong coupling limit, we develop a low-energy effective theory in terms of atomic one- and two-electron states in the $E_g$ multiplet. The effective theory predicts naturally local pairing (with anti-phase between the two orbitals due to the repulsive inter-orbital pair hopping) and strong singlet pairing on vertical inter-layer bond, where the super-exchange between $d_{3z^2-r^2}$-orbital is the strongest. The real-space structure is consistent with that from functional renormalization group, suggesting the robustness of such a pairing function. We also discuss a possible scenario for the weak insulating behavior under low pressures in terms of the tendency toward the formation of charge order in the strong coupling limit.Comment: 5 pages, 4 figure