Electron-positron angular correlations were measured for the isovector magnetic dipole 17.6 MeV (J^{π}=1^{+}, T=1) state→ground state (J^{π}=0^{+}, T=0) and the isoscalar magnetic dipole 18.15 MeV (J^{π}=1^{+}, T=0) state→ground state transitions in ^{8}Be. Significant enhancement relative to the internal pair creation was observed at large angles in the angular correlation for the isoscalar transition with a confidence level of >5σ. This observation could possibly be due to nuclear reaction interference effects or might indicate that, in an intermediate step, a neutral isoscalar particle with a mass of 16.70±0.35(stat)±0.5(syst) MeV/c^{2} and J^{π}=1^{+} was created.
Download full-text PDF |
Source |
|---|---|
| http://dx.doi.org/10.1103/PhysRevLett.116.042501 | DOI Listing |
Publication Analysis
Top Keywords
Similar Publications
Exhaled Breath Analysis Using a Novel Electronic Nose for Different Respiratory Disease Entities.
Lung
January 2025
Department of Internal Medicine, National Taiwan University Hospital, No.7, Chung Shan S. Rd., Zhongzheng District, Taipei City, 100225, Taiwan.
Purpose: Electronic noses (eNose) and gas chromatography mass spectrometry (GC-MS) are two important breath analysis approaches for differentiating between respiratory diseases. We evaluated the performance of a novel electronic nose for different respiratory diseases, and exhaled breath samples from patients were analyzed by GC-MS.
Materials And Methods: Patients with lung cancer, pneumonia, structural lung diseases, and healthy controls were recruited (May 2019-July 2022).
Promoter analysis reveals conserved 30-base-pair core sequences controlling the nonhair-cell preferential expression of WEREWOLF in Arabidopsis.
Biochem Biophys Res Commun
January 2025
Department of Systems Biology, Yonsei University, Seoul, 03722, Republic of Korea. Electronic address:
The root epidermis of Arabidopsis (Arabidopsis thaliana) consists of two distinct cell types: hair (H) cells and non-hair (N) cells, whose patterning is regulated by a network of genes. Among these, the WEREWOLF (WER) gene, encoding an R2R3 MYB transcription factor, acts as a master regulator by promoting the expression of key downstream genes, such as GLABRA2 and CAPRICE. However, the mechanisms controlling WER expression have remained largely unexplored.
View Article and Find Full Text PDFUntrimmed ITS2 metabarcode sequences cause artificially reduced abundances of specific fungal taxa.
Appl Environ Microbiol
December 2024
Department of Molecular and Cell Biology, University of Connecticut, Storrs, Connecticut, USA.
Unlabelled: Advances in DNA metabarcoding have greatly expanded our knowledge of microbial communities in recent years. Pipelines and parameters have been tested extensively for bacterial metabarcoding using the 16S rRNA gene and best practices are largely established. For fungal metabarcoding using the internal transcribed spacer (ITS) gene, however, only a few studies have considered how such pipelines and parameters can affect community prediction.
View Article and Find Full Text PDFThe potential of Generative Pre-trained Transformer 4 (GPT-4) to analyse medical notes in three different languages: a retrospective model-evaluation study.
Lancet Digit Health
January 2025
Department of Biomedical Informatics, Medical School, Harvard University, Boston, MA, USA. Electronic address:
Background: Patient notes contain substantial information but are difficult for computers to analyse due to their unstructured format. Large-language models (LLMs), such as Generative Pre-trained Transformer 4 (GPT-4), have changed our ability to process text, but we do not know how effectively they handle medical notes. We aimed to assess the ability of GPT-4 to answer predefined questions after reading medical notes in three different languages.
View Article and Find Full Text PDFThe Utility of Long-Read Sequencing in Diagnosing Early Onset Parkinson's Disease.
Ann Neurol
December 2024
Department of Neurology, Faculty of Medicine, Juntendo University, Tokyo, Japan.
Objective: Variants in PRKN and PINK1 are the leading cause of early-onset autosomal recessive Parkinson's disease, yet many cases remain genetically unresolved. We previously identified a 7 megabases complex structural variant in a pair of monozygotic twins using Oxford Nanopore Technologies (ONT) long-read sequencing. This study aims to determine if ONT long-read sequencing can detect a second variant in other unresolved early-onset Parkinson's disease (EOPD) cases with 1 heterozygous PRKN or PINK1 variant.
View Article and Find Full Text PDFWant AI Summaries of new PubMed Abstracts delivered to your In-box?
Enter search terms and have AI summaries delivered each week - change queries or unsubscribe any time!