The methods of heavy ion nuclear reaction spectroscopy are discussed. When combined with large gamma ray arrays and charged particle selection methods, vast amounts of nuclear data are collected and complex nuclear level schemes approaching the extremes of angular momentum result. Often, bands of levels associated with particular nuclei cannot be specifically tied down in the nucleus. Examples of these floating bands are given for (135)Pm and (152)Dy. A correlation of the level schemes of (219)Ra, observed in (223)Th alpha decay and the nuclear reaction (208)Pb((14)C,3n), suggests that the ground state of (219)Ra has not been observed in the nuclear reaction study. The resultant levels in (219)Ra are then interpreted in terms of a reflection asymmetric nuclear model.
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http://dx.doi.org/10.1021/ic981196v | DOI Listing |
J Chem Theory Comput
January 2025
Preferred Networks, Inc., Tokyo 100-0004, Japan.
Mapping the chemical reaction pathways and their corresponding activation barriers is a significant challenge in molecular simulation. Given the inherent complexities of 3D atomic geometries, even generating an initial guess of these paths can be difficult for humans. This paper presents an innovative approach that utilizes neural networks to generate initial guesses for reaction pathways based on the initial state and learning from a database of low-energy transition paths.
View Article and Find Full Text PDFCancer Cell Int
January 2025
School of Clinical Medicine, Guizhou Medical University, Guiyang, Guizhou, China.
Recently, there has been growing interest in the role of circular RNAs (circRNAs) in the progression of human cancers. Cellular senescence, a known anti-tumour mechanism, has been observed in several types of cancer. However, the regulatory interplay of circRNAs with cellular senescence in pancreatic cancer (PC) is still unknown.
View Article and Find Full Text PDFComp Biochem Physiol B Biochem Mol Biol
January 2025
Department of Gastroenterology, Zhongnan Hospital of Wuhan University, Wuhan 430071, China. Electronic address:
Yersinia ruckeri is known to cause enteric red mouth disease (ERM) in channel catfish (Ictalurus punctatus). This study first established a model of Y. ruckeri-induced intestinal inflammation in channel catfish.
View Article and Find Full Text PDFJ Oral Biosci
January 2025
Dental Science Research Institute, School of Dentistry, Chonnam National University, Gwangju, Korea. Electronic address:
Objectives: We investigated the involvement of FOXO3a in lipopolysaccharide (LPS)-induced inflammation in primary human dental pulp cells (HDPCs).
Methods: HDPCs that were isolated from donors undergoing tooth extraction for orthodontic purposes were cultured with or without 1 μg/mL LPS at various intervals. The FOXO3a localization in the HDPCs was verified using immunofluorescence.
Mar Pollut Bull
January 2025
Coastal Zone Ecological Environment Monitoring Technology and Equipment Shandong Engineering Research Center, CAS Key Laboratory of Coastal Zone Environmental Processes and Ecological Remediation, Yantai Institute of Coastal Zone Research, Chinese Academy of Sciences, Yantai, Shandong 264003, China; University of Chinese Academy of Sciences, Beijing 100049, China; Center for Ocean Mega-Science, Chinese Academy of Sciences, Qingdao, Shandong 266071, China; Shandong Key Laboratory of Coastal Environmental Processes, Yantai, Shandong 264003, China. Electronic address:
By integrating ultraviolet (UV) photocatalytic oxidation digestion with segmented continuous flow analysis technology, an online measurement method and analysis system for the alkaline chemical oxygen demand (COD) in seawater, based on the color-change reaction of potassium permanganate, has been established. This represents the first application of UV photocatalytic oxidation technology in the measurement of COD in seawater. The system effectively overcomes the limitations of high-temperature and high-pressure digestion methods employed in traditional COD analysis.
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