181 research outputs found
Data-Driven Energy Levels Calculation of Neutral Ytterbium ( = 70)
In view of the difficulty in calculating the atomic structure parameters of
high- elements, the HFR (Hartree-Fock with relativistic corrections) theory
in combination with the ridge regression (RR) algorithm rather than the Cowan
code's least squares fitting (LSF) method is proposed and applied. By analyzing
the energy level structure parameters of the HFR theory and using the fitting
experimental energy level extrapolation method, some excited state energy
levels of the {Yb~I} () atom including the open shell are
calculated. The advantages of the ridge regression algorithm are demonstrated
by comparing it with Cowan's least squares results. In addition, the results
obtained by the new method are compared with the experimental results and other
theoretical results to demonstrate the reliability and accuracy of our
approach
GRASS: Unified Generation Model for Speech Semantic Understanding
This paper explores the instruction fine-tuning technique for speech semantic
understanding by introducing a unified end-to-end (E2E) framework that
generates semantic labels conditioned on a task-related prompt for audio data.
We pre-train the model using large and diverse data, where instruction-speech
pairs are constructed via a text-to-speech (TTS) system. Extensive experiments
demonstrate that our proposed model significantly outperforms state-of-the-art
(SOTA) models after fine-tuning downstream tasks. Furthermore, the proposed
model achieves competitive performance in zero-shot and few-shot scenarios. To
facilitate future work on instruction fine-tuning for speech-to-semantic tasks,
we release our instruction dataset and code
Association Between VDR FokI Polymorphism and Intervertebral Disk Degeneration
AbstractIntervertebral disk degeneration (IDD) is strongly associated with genetic predisposition and environmental susceptibility. Several studies been conducted to investigate the potential association between IDD and FokI polymorphism located in the gene encoding the vitamin D receptor (VDR), and inconsistent conclusions had been reached among different ethnic populations. In order to assess the association between the FokI polymorphism and the risk of IDD, we performed a comprehensive and systematic meta-analysis. Candidate articles were retrieved from PubMed, EMBASE, China National Knowledge Infrastructure (CNKI), and China Biology Medical (CBM) with strict inclusion criteria in January 2015. Among the 54 articles that were retrieved, only eight studies met the inclusion criteria. The pooled data analysis based on allele contrast, homozygote, heterozygote, dominant, and recessive models revealed no significant correlation between the FokI polymorphism and the risk of IDD. However, when stratified by ethnicity, significant associations were detected for Hispanics based on allele contrast (OR=1.395, 95% CI=1.059–1.836, P=0.018), homozygote (OR=1.849, 95% CI=1.001–3.416, P=0.049), heterozygote (OR=1.254, 95% CI=1.049–1.498, P=0.013), and dominant (OR=1.742, 95% CI=1.174–2.583, P=0.006) models, and for Asians using the dominant model (OR=1.293, 95% CI=1.025–1.632, P=0.030), whereas there is no significant association detected for Caucasians. In conclusion, FokI polymorphism is not generally associated with IDD, but there is increased risk for IDD in Hispanics and Asians carrying FokI allele T
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