Probing the XYZXYZ states through radiative decays

In this work, we have adopted the spin rearrangement scheme in the heavy quark limit and extensively investigated three classes of the radiative decays: $\mathfrak{M}\to (b\bar{b})+\gamma$, $(b\bar{b})\to \mathfrak{M}+\gamma$, $\mathfrak{M} \to \mathfrak{M}^\prime+\gamma$, corresponding to the electromagnetic transitions between one molecular state and bottomonium, one bottomonium and molecular state, and two molecular states respectively. We also extend the same formalism to study the radiative decays of the molecular states with hidden charm. We have derived some model independent ratios when the initial or final states belong to the same spin flavor multiplet. Future experimental measurement of these ratios will test the molecular picture and explore the underlying structures of the $XYZ$ states.Comment: 21 pages, 10 tables Accepted by Phys.Rev.

Complete Controllability of Fractional Neutral Differential Systems in Abstract Space

By using fractional power of operators and Sadovskii fixed point theorem, we study the complete controllability of fractional neutral differential systems in abstract space without involving the compactness of characteristic solution operators introduced by us

Semi-supervised Semantic Segmentation with Prototype-based Consistency Regularization

Semi-supervised semantic segmentation requires the model to effectively propagate the label information from limited annotated images to unlabeled ones. A challenge for such a per-pixel prediction task is the large intra-class variation, i.e., regions belonging to the same class may exhibit a very different appearance even in the same picture. This diversity will make the label propagation hard from pixels to pixels. To address this problem, we propose a novel approach to regularize the distribution of within-class features to ease label propagation difficulty. Specifically, our approach encourages the consistency between the prediction from a linear predictor and the output from a prototype-based predictor, which implicitly encourages features from the same pseudo-class to be close to at least one within-class prototype while staying far from the other between-class prototypes. By further incorporating CutMix operations and a carefully-designed prototype maintenance strategy, we create a semi-supervised semantic segmentation algorithm that demonstrates superior performance over the state-of-the-art methods from extensive experimental evaluation on both Pascal VOC and Cityscapes benchmarks.Comment: Accepted to NeurIPS 202

Effects of two myricetin on renal fibrosis in diabetic nephropathy rats

Objective: To investigate the protective effect of two - myricetin (DMY) on diabetic nephropathy (DN) and its effect on renal fibrosis. Methods: the DN model was established by intraperitoneal injection of high-dose (55 mg · kg-1) streptozotocin (STZ). The model was successfully established with blood glucose > 16.7 mmol · L-1. The rats were randomly divided into normal group, model group and low, medium and high dose DMY group (125, 250 and 500 mg · kg-1). DMY group was administered by gavage, and the model group was administered by normal saline for 12 weeks. The contents of 24h urinary protein (24h-Pro), blood urea nitrogen (BUN) and blood creatinine (SCR) were detected by biochemistry. He staining was used to observe the morphological changes of kidney in each group, PAS staining was used to observe the changes of basement membrane thickness of renal tissue in each group, and Masson staining was used to observe the degree of glomerulosclerosis and renal interstitial fibrosis in each group. TGF in renal tissue of rats in each group was detected by Western blot- β1. Expression level of Smad2 and Smad7. Results: compared with the normal group, the contents of 24h pro, bun and SCR in DN model group were significantly increased (P < 0.01). Compared with the model group, the contents of 24h pro, bun and SCR in each dose of DMY group decreased (P < 0.01). The pathological results showed that the renal tissue of the model group showed increased glomerular volume and glue mor

Fermion Resonances on a Thick Brane with a Piecewise Warp Factor

In this paper, we mainly investigate the problems of resonances of massive KK fermions on a single scalar constructed thick brane with a piecewise warp factor matching smoothly. The distance between two boundaries and the other parameters are determined by one free parameter through three junction conditions. For the generalized Yukawa coupling $\eta\bar{\Psi}\phi^{k}\Psi$ with odd $k=1,3,5,...$, the mass eigenvalue $m$, width $\Gamma$, lifetime $\tau$, and maximal probability $P_{max}$ of fermion resonances are obtained. Our numerical calculations show that the brane without internal structure also favors the appearance of resonant states for both left- and right-handed fermions. The scalar-fermion coupling and the thickness of the brane influence the resonant behaviors of the massive KK fermions.Comment: V3: 15 pages, 7 figures, published versio