Higher-order generalized uncertainty principle applied to gravitational baryogenesis

The gravitational baryogenesis plays an important role in the study of the baryon asymmetry. However, the original mechanism of gravitational baryogenesis in the radiation dominated era leads to the asymmetry factor $\eta$ is equal to zero, which indicates this mechanism may not generate a sufficient baryon asymmetry for the standard cosmological model. In this manuscript, we investigate the gravitational baryogenesis for the generation of baryon asymmetry in the early Universe by using an new higher-order generalized uncertainty principle (GUP). It is demonstrated that the entropy and Friedman equation of the Universe deviate from the original cases due to the effect of the higher-order GUP. Those modifications break the thermal equilibrium of the Universe and in turn produces a non-zero asymmetry factor $\eta$. In particular, our results satisfy all three Sakharov conditions, which indicates that the scheme of explaining baryon asymmetry in the framework of higher-order GUP is feasible. In addition, confronting our theoretical results with the observational results, we constraint the GUP parameter $\beta_0$, whose bound between $8.4 \times {10^{10}} \sim 1.1 \times {10^{13}}$.Comment: 8 pages, 1 figur

The generalized uncertainty principle impact onto the black hole thermodynamic phase transition

In this work, we conduct a study regarding the local thermodynamic quantities and the phase transition of a black hole subject to the generalized uncertainty principle. The results demonstrate that both the positive and negative generalized uncertainty principle parameters $\beta_0$ can significantly affect the thermodynamic evolution, stability, critical behavior, and phase transition of the black hole. For $\beta_0>0$, the black hole forms a thermodynamic remnant with finite temperature and finite mass but zero local heat capacity in the last stages of evolution. Meanwhile, it has one second-order phase transitions and two Hawking-Page-type phase transitions. The Gross-Perry-Yaffe phase transition occurs for both large black hole state and small black hole state. For $\beta_0<0$, the Gross-Perry-Yaffe phase transition occurs only for large black hole state, and the temperature and heat capacity of black hole remnant is finite, whereas its mass is zero. This indicates the remnant is metastable and would be in the Hawking-Page-type phase transition forever. In addition, according to the viewpoint of corpuscular gravity, the remnant can be interpreted as an additional TBH configuration, which never appears in the original case and the positive correction case.Comment: 7 Pages, 3 figure

医护联合查房在心内科ICU中的临床实践

Objective: To establish a good communicational bridge among patients, doctors and nurses, and promote quality of holistic nursing through collaborative ward rounds, as well as hoping to further develop the collaborative ward rounds of doctors, nurses, dietitians, rehabilitation and oral care division after putting forward high quality care. Method：The patients in ICU of cardiology between October 2011 and October 2013 were separately selected as control group and experimental group according to the admission before and after 1 year. The control group accepted separately traditional rounds of doctors and nurses from October 2011 to October 2012 and experimental group implemented the collaborative ward rounds by doctors and nurses twice a day from October 2012 to October 2013. Compared the quality of care of between two groups. Result：In experimental group, the satisfactions of hospitalized patients and doctors to nurses’ work, the average length of stay of patients and the turnover rate of ward beds were all better than those of control group, which were statistically significant (P&lt;0.05). Conclusion: Collaborative ward rounds by doctors and nurses can promote quality of care and improve the working efficiency of ward. 目的  在优质护理服务提出前提下，通过医护联合查房，为患者、医生、护士三方提供良好沟通的桥梁，全面提高护理质量，希望之后进一步发展为医生、护士、营养师、康复师与口腔护理师共同联合查房。方法  选择2011年10月—2013年10月入住心内科ICU患者，选择前后各1年为对照阶段和实验阶段，比较两阶段的护理服务质量、对照组（2011年10月—2012年10月）实行传统医生、护士分开查房；实验组（2012年10月—2013年10月）实施每天两次医生、护士联合查房；结果  实验组患者的住院满意度、医生对护士工作满意度、患者平均住院日及病区床位周转率均比对照组提高，差异有统计学意义（P&lt;0.05)。 结论  医护联合查房，可以提高护理质量、病区工作效率

Analysis of Stress State of Bolts under Different Anchorage Qualities

A series of pull-out tests were conducted in order to study the stress states of bolts under different anchorage qualities and to simulate the influence of quality defects in empty-slurry and low-strength mortar anchorage in actual engineering. The tests mainly investigated strain characteristics at different positions of the bolts and the effects of strains at the same positions under different anchorage conditions. The research led to the following conclusions: (1) under ultimate bearing capacity, the strain values decayed the fastest along the length of the bolt in the full-length anchorage, the strain values decayed the slowest in the empty-slurry and low-strength mortar anchorage, and the decaying speed of strains in the empty-slurry mortar anchorage was between that of the above two kinds of anchorages; (2) at almost 50% of the ultimate bearing capacity, the strain values were slightly different between the empty-slurry and low-strength mortar anchorage and the empty-slurry anchorage. Obvious differences in strain values occurred when the bolts were continued to be loaded. The strain values of the full-length anchorage bolts were different from those of the other two kinds of anchorages; (3) from the analysis of stress variation characteristics, the safety reserve was the highest for the full-length anchorage under the condition of ultimate bearing capacity, followed by the empty-slurry mortar anchorage, while the safety reserve was the lowest for the empty-slurry and low-strength mortar anchorage. However, in terms of uniformity of force and utilization of the material, the result was reverse