Analysis of the strong vertices of ΣcND∗\Sigma_cND^{*} and ΣbNB∗\Sigma_bNB^{*} in QCD sum rules

The strong coupling constant is an important parameter which can help us to understand the strong decay behaviors of baryons. In our previous work, we have analyzed strong vertices $\Sigma_{c}^{*}ND$, $\Sigma_{b}^{*}NB$, $\Sigma_{c}ND$, $\Sigma_{b}NB$ in QCD sum rules. Following these work, we further analyze the strong vertices $\Sigma_{c}ND^{*}$ and $\Sigma_{b}NB^{*}$ using the three-point QCD sum rules under Dirac structures $q\!\!\!/p\!\!\!/\gamma_{\alpha}$ and $q\!\!\!/p\!\!\!/p_{\alpha}$. In this work, we first calculate strong form factors considering contributions of the perturbative part and the condensate terms $\langle\overline{q}q\rangle$, $\langle\frac{\alpha_{s}}{\pi}GG\rangle$ and $\langle\overline{q}g_{s}\sigma Gq\rangle$. Then, these form factors are used to fit into analytical functions. According to these functions, we finally determine the values of the strong coupling constants for these two vertices $\Sigma_{c}ND^{*}$ and $\Sigma_{b}NB^{*}$.Comment: arXiv admin note: text overlap with arXiv:1705.0322

临床压疮管理简易方法探究

To guarantee the fulfilling of nursing for pressure sores patients efficiently and normatively, we established "The quality evaluation standard of pressure score management", in which the content were comprehensive and the standard were definite.It is widely applied for clinical supervision, unified examination method, to guide clinical work, narrow the difference of evaluation, popularize the knowledge of pressure scores, improve the ability of would disposal, reported compliance rates of high risk of pressure scores increased as well as the rate of cure and nursing care of patients with pressure scores. Nursing care of patients with pressure sore was from passive to active, measures are effectively implemented, the management level of the skin was improved so that it turns out to be a simple and effective method. 为保证压疮护理各项措施的有效、规范落实，制定了《压疮管理质量评价标准》，其涵盖内容全面，工作标准明确。并依此进行临床督导，统一检查方法，指引临床工作，缩小评估差异，普及压疮知识，提高了创面处置能力，高危压疮上报符合率及压疮治愈好转率提高，压疮护理由被动变主动，措施得到有效落实，提高了皮肤管理水平，方法简单有效

EASYFLOW: Keep Ethereum Away From Overflow

While Ethereum smart contracts enabled a wide range of blockchain applications, they are extremely vulnerable to different forms of security attacks. Due to the fact that transactions to smart contracts commonly involve cryptocurrency transfer, any successful attacks can lead to money loss or even financial disorder. In this paper, we focus on the overflow attacks in Ethereum , mainly because they widely rooted in many smart contracts and comparatively easy to exploit. We have developed EASYFLOW , an overflow detector at Ethereum Virtual Machine level. The key insight behind EASYFLOW is a taint analysis based tracking technique to analyze the propagation of involved taints. Specifically, EASYFLOW can not only divide smart contracts into safe contracts, manifested overflows, well-protected overflows and potential overflows, but also automatically generate transactions to trigger potential overflows. In our preliminary evaluation, EASYFLOW managed to find potentially vulnerable Ethereum contracts with little runtime overhead.Comment: Proceedings of the 41st International Conference on Software Engineering: Companion Proceedings. IEEE Press, 201