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A study was conducted to characterize the Spherical Rings Arithmetic Progression angular quadrature scheme for three-dimensional radiative heat transfer that supports various structures of directions that other level symmetric sets. The construction of the set is determined on an octant of unit sphere while the whole hemispherical surface is organized into spherical rings. Results showed that the quadrature set effectively complements double moments.

Electrides are unique materials with the anionic electrons confined to the interstitial sites, expecting important applications in various areas. In this work, the electronic structure and detailed physical properties of topological electride Ca3Pb are studied theoretically. By comparing the crystal structures and band structures of Ca3Pb and Ca3PbO, we find that after removing O2– ions from Ca3PbO, the remaining electrons are confined in the vacancies of the Ca6 octahedra centers, playing the role as anions and forming an additional energy band compared with that of Ca3Pb. These interstitial electrons partially result in the low work function of Ca3Pb. Moreover, the calculated mechanic properties imply that Ca3Pb has a strong brittleness. In addition, the dielectric functions and optical properties of Ca3Pb are also analyzed. [ABSTRACT FROM AUTHOR]

This article discusses the role of Daoists in Qing-period City God temples in the Jiangnan area. While other types of religious specialists and social groups were involved in the religious life of these temples, Daoists brought in their bureaucratic vision of religion in the way the cult was organized. They played a key role in operating the temple like a yamen, administering justice, and levying symbolical taxes on local families. Moreover, they did so by referring to their hierarchical superior, namely the Heavenly Master. The core of the article is devoted to the various ways in which the Daoists in the City God temples interacted with the administration of Heavenly Master (through canonizations, exchange of clerics, and judicial rituals). In conclusion, the author suggests that through the City God temples and their bureaucratic organization, the elite Daoists in Jiangnan participated to the construction of the imperial state. [ABSTRACT FROM AUTHOR]

Protein synthesis in response to neuronal activity, known as activity-dependent translation, is critical for synaptic plasticity and memory formation. However, the signaling cascades that couple neuronal activity to the translational events remain elusive. In this study, we identified the role of calmodulin (CaM), a conserved Ca 2+ -binding protein, in ribosomal RNA (rRNA) biogenesis in neurons. We found the CaM-regulated rRNA synthesis is Ca 2+ -dependent and necessary for nascent protein synthesis and axon growth in hippocampal neurons. Mechanistically, CaM interacts with nucleolar DEAD (Asp-Glu-Ala-Asp) box RNA helicase (DDX21) in a Ca 2+ -dependent manner to regulate nascent rRNA transcription within nucleoli. We further found CaM alters the conformation of DDX21 to liberate the DDX21-sequestered RPA194, the catalytic subunit of RNA polymerase I, to facilitate transcription of ribosomal DNA. Using high-throughput screening, we identified the small molecules batefenterol and indacaterol that attenuate the CaM-DDX21 interaction and suppress nascent rRNA synthesis and axon growth in hippocampal neurons. These results unveiled the previously unrecognized role of CaM as a messenger to link the activity-induced Ca 2+ influx to the nucleolar events essential for protein synthesis. We thus identified the ability of CaM to transmit information to the nucleoli of neurons in response to stimulation., Competing Interests: The authors declare no competing financial interests., (Copyright © 2024 the authors.)

The aim of this study was to sort the CD34(+)/CD123(+) cells from the bone marrow cells of patients with acute myeloid leukemia (AML) by Midi MACS method. Firstly, the bone marrow mononuclear cells (BMMNC) were isolated from the patients with AML with Ficoll Paque, CD34(+) cells were then isolated by Midi MACS method followed by the isolation of CD34(+)/CD123(+) cells from the fraction of CD34(+) cells. The enrichment and recovery of CD34(+) and CD34(+)/CD123(+) cells were assayed by FACS technique. The results showed that the enrichment of CD34(+) cells was up to 98.73%, its average enrichment was 95.6%, and the recovery of CD34(+) was 84.6%, its average recovery was 51% after the first round sorting, by the second round sorting, the enrichment of CD34(+)/CD123(+) cells was up to 99.23%, its average enrichment was 83%. With regard to BMMNCs before sorting, the recovery of CD34(+)/CD123(+) was 34%. But, on the CD34(+) cells obtained by the first round sorting, its recovery was 56%. In conclusion, these results confirmed that the method of Midi MACS sorting can be applied to sort CD34(+)/CD123(+) cells from the bone marrow cells of AML patients, which give rise to the similar enrichment and recovery of the sorted cells with that of literature reported by the method of FACS.

The paper is about the emission of fluorine from an experimental boiler of 0.25 MW when burning black liquor coal-water slurry (CWS). The result is compared with CWS. And the analysis of effect factors is also carried out. Experimental research show that, the content of fluorine in CWS, which was less than 30 mg/kg, was relatively low. The emission ratio and concentration of fluorine were 70% - 90% and 2.0 - 2.6 mg/m3 respectively when burning common CWS; while the data of those when combusting black liquor CWS were 45% - 80% and 1.7 - 3.0 mg/m3 respectively. The hearth temperature and the element of CWS were two factors of emission fluorine when burning CWS.

In the paper, the reaction of CaO-HF and fluorine removal mechanics at high temperature by blending calcium-based sorbents with coal during coal combustion were discussed, and test results about fluorine retention during coal combustion in fluidized bed and chain-grate furnace were reported. The results identified that lime and calcium-based sorbets developed can restratin the emission of fluorine during coal combustion. The efficiency of fluorine removal can reach 66.7%-70.0% at Ca/F 60-70 by blending lime with coal in fluidized bed combustion, and the efficiency of fluorine removal are between 57.32% and 75.19% by blending calcium-based sorbets with coal in chain-grate furnace combustion. Blending CaO or lime with coal during coal combustion can remove SO2 and HF simultaneously.