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 E-Mail IMAGE: Dalian Coherent Light Source revealing three-body photodissociation of water as an important prebiotic-O2 source view more  Credit: DICP The provenance of oxygen on Earth and other solar planetary bodies is a fundamental issue. It is widely accepted that the prebiotic pathway of oxygen production in the Earth primitive atmosphere was via vacuum ultraviolet (VUV) photodissociation of CO 2 and subsequent recombination of two O atoms. In contrast, the photodissociation of H2O, one of the dominant oxygen carriers, has long been assumed to proceed mainly to produce hydroxy...

 E-Mail IMAGE: Geostrophic currents retrieved from multi-decadal hydrological observational data based on WOA18 ((a), (b), (d), (e), cm s?1) and the mean horizontal absolute velocity |u| in the upper 200 m simulated... view more  Credit: ©Science China Press Under the background of global warming, the energy budget of the earth is out of balance with more than 90% of additional heat entering the ocean. The tropical Pacific Ocean has an important influence on the global tropical climate and the climate of China, and the tropical Pacific Western Boundary Currents (WBCs) that flow th...

 E-Mail IMAGE: A. The regulation of SLAC1 control of stomatal aperture; B. The cryo-EM structure of plant SLAC1; C. The electrophysiological characterization of key phosphorylation residues in SLAC1. view more  Credit: IGDB Stomata, formed by a pair of kidney-shaped guard cells, are tiny pores in leaves. They act like mouths that plants use to "eat" and "breathe." When they open, carbon dioxide (CO 2) enters the plant for photosynthesis and oxygen (O 2) is released into the atmosphere. At the same time as gases pass in and out, a great deal of water also evaporates through the same ...

 E-Mail Credit: IOCAS Earthquakes and volcanoes in subduction zones may cause great human catastrophe. Previous studies on subduction zone structure and causal mechanisms of giant megathrust earthquakes (M ≥ 9.0) have mainly focused on aspects like subducting plates and plate interfaces. In contrast, the oceanic asthenosphere structure beneath the subducting slab (at depths of 100-250 km) and its influence on the nucleation of giant megathrust earthquakes have not been well studied. Recently, Dr. FAN Jianke from the Institute of Oceanology of the Chinese Academy of Sciences (IOCAS) and Pro...

Credit: IGDB A mechanistic understanding of brain development requires a systematic survey of neural progenitor cell types, their lineage specification and maturation of postmitotic neurons. Cumulative evidences based on single-cell transcriptomic analysis have revealed the heterogeneity of cortical neural progenitors, their temporal patterning and the developmental trajectories of excitatory and inhibitory neurons in the developing neocortex. Nevertheless, the developmental hierarchy of the hypothalamus, which contains an astounding diversity of neurons that regulate endocrine, autonomic and...