Study of Charmonium(-like) Spectroscopy and Decay at BESIII

The recent results about Charmonium and Charmonium-like states at BESIII are reviewed, including the observation of $\rm Z_{cs}(3985)$, the study of the new decay modes of $\psi_2(3823)$, observation of resonance structure in $\rm e^+e^- \to \pi^+\pi^-\psi_2(3823)$, the study of the $\rm e^+e^- \to K^+K^-J/\psi$, cross section measurement of $\rm e^+e^- \to \omega\pi^0$ and $\omega\eta$, branching fraction measurement of $\psi(3686)\to\bar{\Sigma}^0\Lambda + c.c.$. Decay channels for $\chi_{cJ} \to \Lambda\bar{\Lambda}$, $\chi_{cJ} \to \Lambda\bar{\Lambda}\eta$, $\psi(3686) \to \Lambda\bar{\Lambda}\omega$ and $\eta_c(2S)\to3(\pi^+\pi^-)$ are also mentioned. The property of the spin singlet P wave Charmonium state, $\rm h_c$ is also studied

A multicomponent assembly approach for the design of deep desulfurization heterogeneous catalysts

Deep desulfurization is a challenging task and global efforts are focused on the development of new approaches for the reduction of sulfur-containing compounds in fuel oils. In this work, we have proposed a new design strategy for the development of deep desulfurization heterogeneous catalysts. Based on the adopted design strategy, a novel composite material of polyoxometalate (POM)-based ionic liquid-grafted layered double hydroxides (LDHs) was synthesized by an exfoliation/grafting/assembly process. The structural properties of the as-prepared catalyst were characterized using FT-IR, XRD, TG, NMR, XPS, BET, SEM and HRTEM. The heterogeneous catalyst exhibited high activity in deep desulfurization of DBT (dibenzothiophene), 4,6-DMDBT (4,6-dimethyldibenzothiophene) and BT (benzothiophene) at 70 °C in 25, 30 and 40 minutes, respectively. The catalyst can be easily recovered and reused at least ten times without obvious decrease of its catalytic activity. Such excellent sulfur removal ability as well as the cost efficiency of the novel heterogeneous catalyst can be attributed to the rational design, where the spatial proximity of the substrate and the active sites, the immobilization of ionic liquid onto the LDHs via covalent bonding and the recyclability of the catalyst are carefully considered

Efficacy and prognostic factors of concurrent chemoradiotherapy in patients with stage Ib3 and IIa2 cervical cancer

Objectives: We investigated the efficacy, side effects, and prognostic factors of concurrent chemoradiotherapy for patientswith stage Ib3-IIa2 cervical cancer.Material and methods: We conducted a retrospective analysis of clinicopathologic data from 73 patients with stageIb3-IIa2 cervical cancer who received concurrent chemoradiotherapy from January 2008 to December 2013 in our hospital.Overall response and disease control rates were used to evaluate short-term outcomes; the 3-year and 5-year disease-freesurvival and overall survival were used to evaluate long-term efficacy. Toxicity reactions and prognostic factors were recorded.Results: With concurrent chemoradiotherapy, overall response and disease control rates were 91.78% and 97.26%, respectively.The 3-year disease-free and overall survival were 80.82% and 83.56%; the 5-year disease-free and overall survival were 75.34%and 79.45%, respectively. All side effects were tolerated and potentially alleviated by symptomatic treatment. Tumor pathologicaltype, differentiated degree, primary tumor size and squamous cell carcinoma antigen levels before and after treatment wereclosely related to survival (univariate analysis; p < 0.05). Pathological type, primary tumor size and squamous cell carcinomaantigen levels one month after treatment were independent prognostic factors for long-term outcome (multivariate analysis).Conclusions: Short- and long-term efficacy of concurrent chemoradiotherapy for stage Ib3-IIa2 cervical cancer is well-determinedand tolerable. Patients with adenocarcinomas, tumor diameter ≥ 5 cm and squamous cell carcinoma antigenlevels ≥ 1.5 ng/mL (one month after treatment) had poor prognosis and should be assessed further

Rationale-Enhanced Language Models are Better Continual Relation Learners

Continual relation extraction (CRE) aims to solve the problem of catastrophic forgetting when learning a sequence of newly emerging relations. Recent CRE studies have found that catastrophic forgetting arises from the model's lack of robustness against future analogous relations. To address the issue, we introduce rationale, i.e., the explanations of relation classification results generated by large language models (LLM), into CRE task. Specifically, we design the multi-task rationale tuning strategy to help the model learn current relations robustly. We also conduct contrastive rationale replay to further distinguish analogous relations. Experimental results on two standard benchmarks demonstrate that our method outperforms the state-of-the-art CRE models.Comment: Accepted at EMNLP 202

Update of hadronic decays of J/ψJ/\psi and ψ(2S)\psi(2S) though virtual photons

The hadronic decay branching ratios of $J/\psi$ and $\psi(2S)$ through virtual photons, $B(J/\psi, \psi(2S) \rightarrow \gamma^*\rightarrow \text{hadrons})$, are updated by using the latest published measurements of the $R$ value and the branching ratios of $J/\psi, \psi(2S) \rightarrow l^+l^-$. Their respective precision increases by about 4 and 3 times.Comment: 3 pages, 1 figur

Preliminary study to explore gene-PM2.5 interactive effects on respiratory system in traffic policemen

Objectives: Traffic-related particulate matter (PM) is one of the major sources of air pollution in metropolitan areas. This study is to observe the interactive effects of gene and fine particles (particles smaller than 2.5 μm – PM2.5) on the respiratory system and explore the mechanisms linking PM2.5 and pulmonary injury. Material and Methods: The participants include 110 traffic policemen and 101 common populations in Shanghai, China. Continuous 24 h individual-level PM2.5 is detected and the pulmonary function, high-sensitivity C-reactive protein (hs-CRP), Clara cell protein 16 (CC16) and the polymorphism in CXCL3, NME7 and C5 genes are determined. The multiple linear regression method is used to analyze the association between PM2.5 and health effects. Meanwhile, the interactive effects of gene and PM2.5 on lung function are analyzed. Results: The individual PM2.5 exposure for traffic policemen was higher than that in the common population whereas the forced expiratory volume in 1 s (FEV1), the ratio of FEV1 to forced vital capacity (FEV1/FVC) and lymphocytes are lower. In contrast, the hs-CRP level is higher. In the adjusted analysis, PM2.5 exposure was associated with the decrease in lymphocytes and the increase in hs-CRP. The allele frequencies for NME7 and C5 have significant differences between FEV1/FVC ≤ 70% and FEV1/FVC > 70% participants. The results didn’t find the interaction effects of gene and PM2.5 on FEV1/FVC in all the 3 genes. Conclusions: The results indicated that traffic exposure to high levels of PM2.5 was associated with systemic inflammatory response and respiratory injury. Traffic policemen represent a high risk group suffering from the respiratory injury