Page 7 - Strategic Priority Research Program News Today

 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 ...

 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 clim...

 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...

 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...

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 hy...

Study Shows Abnormal Enhancement of a-Particle Clustering in Uranium Isotopes Written by AZoMApr 19 2021 In nuclear physics research, the discovery of new isotopes with extreme proton/neutron numbers is always fascinating. The α-decay in the heavy nuclei region is one of the ubiquitous decay modes and has a crucial role in the search for new isotopes. The illustration of the enhanced α-particle preformation in 214, 216U deduced by the strong proton-neutron interaction. Image Credit: Zhiyuan ...

Chinese Academy of Sciences It is always exciting to find new isotopes with extreme neutron/proton numbers in nuclear physics research. In the region of heavy nuclei, α-decay is one of the pervasive decay modes and plays an essential role in searching for new isotopes. However, even after about a century of studying α-decay, scientists still cannot perfectly describe how the α-particle is formed at the surface of the nucleus before its emission. In the α-decay process, the α-particle can b...

IMAGE:  60Fe yield in 18 solar mass star. Blue lines (LMP) are calculations based on previous decay rate, red lines (present work) are those based on the new measurement.... view more  Credit: Physical Review Letters Researchers from the Institute of Modern Physics (IMP) of the Chinese Academy of Sciences and their collaborators have recently made great progress in the study of the stellar beta-decay rate of 59Fe, which constitutes an important step towards understanding 60Fe nucleos...

 E-Mail IMAGE: a, PE rates at endogenous on-target and off-target sites. b, Experimental design and work flow of whole-genome sequencing. c, d, Numbers of SNVs (c) and Indels (d) identified by WGS... view more  Credit: IGDB Prime editing (PE), a "search-and-replace" CRISPR-based genome editing technique, has great potential for gene therapy and agriculture. It can introduce desired base conversions, deletions, insertions, and combination edits into target genomic sites. Prime editors ha...

Q Q 10 values derived from multiyear observations at 74 FLUXNET sites spanning diverse climates and biomes. We found warming-induced decline in Q 10 is stronger at colder regions than other locations, which is consistent with a meta-analysis of 54 field warming experiments across the globe. We predict future warming will shrink the global variability of Q 10 values to an average of 1.44 across the globe under a high emission trajectory (RCP 8.5) by the end of the century. Therefore, warming-i...