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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 Zhang. But even after nearly a century of analyzing α-decay, researchers are still unable to perfec...

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 be regarded not only as two protons plus two neutrons, but also as two proton-neutron pairs. Although...

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 nucleosynthesis in massive stars. The results were published in Physical Review Letters on April 12. Radio...

 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 have been successfully applied in animals and plants, but their off-target effects, which can be a maj...

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-induced carbon loss may be less than previously assumed because of Q INTRODUCTION Terrestrial ecosys...