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Fossil seed-bearing structures preserved in a newly discovered Early Cretaceous silicified peat in Inner Mongolia, China, provide a partial answer to the origin of flowering plants, according to a study led by Prof. SHI Gongle from the Nanjing Institute of Geology and Paleontology of the Chinese Academy of Sciences (NIGPAS).

A group of researchers from the Shanghai Institute of Optics and Fine Mechanics (SIOM) of the Chinese Academy of Sciences recently came up with a new theory on the source of residual infrared absorption in Ti:sapphire laser crystals.

Chinese Academy of Sciences Recently, a research group from Shanghai Institute of Optics and Fine Mechanics (SIOM) of the Chinese Academy of Sciences proposed a new theory on the origin of residual infrared absorption in Ti:sapphire laser crystals. The related research results have been published in Photonics Research on May 4, 2021. Ti:sapphire (also called Ti-doped α-Al 2O 3) is one of the three basic laser crystal materials. Due to its excellent physical and chemical, spectral, and laser pr...

Study Assesses Impact of Climate Change on Silicate Carbon Weathering Sink Written by AZoCleantechMay 17 2021 The global carbon cycle has been influenced by silicate carbon weathering sink (SCS)—the net carbon sink—for a period of more than millions of years. But the spatial pattern, magnitude, and evolution properties of global SCS are still not clear. Spatial distribution (a) and latitudinal variation (b) of average annual silicate rock weathering carbon sink flux during 1996-2017. Image ...

Credit: KOU Wei Researchers have recently extracted the proton mass radius from the experimental data. A research group at the Institute of Modern Physics (IMP) of the Chinese Academy of Sciences (CAS) presented an analysis of the proton mass radius in Physical Review D on May 11. The proton mass radius is determined to be 0.67 ± 0.03 femtometers, which is obviously smaller than the charge radius of the proton. In the Standard Model, the proton is a composite particle made of quarks and gluon...

Date Time Share Chinese Academy of Sciences Recently, researchers from the Shanghai Institute of Optics and Fine Mechanics (SIOM) of the Chinese Academy of Sciences (CAS) have revealed the competitive behavior of bound electrons and free electrons in Epsilon-Near-Zero (ENZ) materials irradiated by ultrafast laser pulses. They proposed the principle and method of synchronously tailoring the saturated absorption (SA) and reverse saturated absorption (RSA) of ENZ materials, which greatly broadene...

 E-Mail IMAGE: Illustration of a tree representing the legume family tree with branches representing the six subfamilies. On each branch are flowers or pods of species belonging to the subfamilies. The lines... view more  Credit: Yiyong Zhao, Chien-Hsun Huang, and Hong Ma The most comprehensive study of the family tree for legumes, the plant family that includes beans, soybeans, peanuts, and many other economically important crop plants, reveals a history of whole-genome duplications....

Home > Press > Polarization-sensitive photodetection using 2D/3D perovskite heterostructure crystal (a) Schematic structure of polarized light detector. (b) Photoconductivity parallel and perpendicular to the interface. (c) Photoconductivity anisotropy versus excitation power. (d) Angle-resolved photocurrent as a function of polarization angle measured at 405 nm under zero bias. (e) Experimental polarization ratios of some reported polarized light detectors. (f) Angle-dependent photocurrent of ...

 E-Mail IMAGE: (a) Schematic structure of polarized light detector. (b) Photoconductivity parallel and perpendicular to the interface. (c) Photoconductivity anisotropy versus excitation power. (d) Angle-resolved photocurrent as a function of polarization angle... view more  Credit: @Science China Press Polarization-sensitive photodetectors, based on anisotropic semiconductors, have exhibited wide advantages in specialized applications, such as astronomy, remote sensing, and polarizati...

Cd86), were down-regulated in Mettl3-deficient cells (Fig. 1G), suggesting that METTL3 has a critical function in controlling the innate immune response of Raw 264.7 macrophages. To further confirm the biological role of the m 6A modification in macrophages, Mettl3 conditional KO (CKO) mice were generated by crossing Mettl3 flox/flox mice with mice expressing Cre recombinase under the control of lysozyme 2 promoter ( Lyzm-Cre). We have documented the loss of both the METTL3 protein and the o...