A new genus and species of nodosaurid dinosaur： Zhejiangosaurus lishuiensis gen. et sp. nov. is erected herein. It is characterized by the sacrum consisting of at least three true sacral vertebrae, 5 caudal dorsal ve...A new genus and species of nodosaurid dinosaur： Zhejiangosaurus lishuiensis gen. et sp. nov. is erected herein. It is characterized by the sacrum consisting of at least three true sacral vertebrae, 5 caudal dorsal vertebrae fused to form the presacral rod, wide divergence of long slender preacetabular process of the ilium from the middle line of the body, and the fourth trochanter located at the femoral mid-length.展开更多
钠离子电池(sodium-ion batteries,SIBs)具有成本低的潜在优势,有望成为替代锂离子电池(lithium ion batteries,LIBs)的储能设备。为提升钠离子电池的性能,开发出适应钠离子脱嵌的负极材料尤为重要。硫化锑(Sb_(2)S_(3))因其理论比容量...钠离子电池(sodium-ion batteries,SIBs)具有成本低的潜在优势,有望成为替代锂离子电池(lithium ion batteries,LIBs)的储能设备。为提升钠离子电池的性能,开发出适应钠离子脱嵌的负极材料尤为重要。硫化锑(Sb_(2)S_(3))因其理论比容量高被认为是较好的钠离子电池负极材料。本文使用简单水热法将Sb_(2)S_(3)与石墨烯复合,制备Sb_(2)S_(3)/石墨烯复合材料(Sb_(2)S_(3)/Gr)。结果表明:Sb_(2)S_(3)/Gr作为钠离子电池负极时,不仅表现出良好的电导率(3.5×10~(-3)S/cm)和钠离子扩散速率(4.853×10~(-13)cm~2/s),而且在0.5 A/g的电流密度下,首圈库伦效率为76.27%,经150次循环后的比容量稳定在488 m A·h/g,表现出较高的比容量。Sb_(2)S_(3)/Gr复合材料表现出了极大的应用潜力,为高性能钠离子电池负极材料的研发提供了一定的参考价值。展开更多
目的构建肺癌术后患者恐动症风险的列线图模型。方法选取2022年10月至2023年5月厦门市某三级甲等综合医院胸外科164例肺癌术后患者为研究对象。采用Logistic回归分析肺癌术后患者发生恐动症的影响因素。应用R软件构建肺癌术后患者恐动...目的构建肺癌术后患者恐动症风险的列线图模型。方法选取2022年10月至2023年5月厦门市某三级甲等综合医院胸外科164例肺癌术后患者为研究对象。采用Logistic回归分析肺癌术后患者发生恐动症的影响因素。应用R软件构建肺癌术后患者恐动症的列线图模型,采用受试者操作特征(receiver operating characteristic,ROC)曲线下面积(area under curve,AUC)检验模型预测效果。结果肺癌术后患者恐动症的发生率为44.51%。Logistic回归分析结果显示,疼痛和疲劳是肺癌术后患者恐动症发生的危险因素(P<0.05);自我效能是恐动症发生的保护性因素(P<0.05)。ROC曲线显示该模型预测肺癌术后患者恐动症的AUC为0.888(95%CI:0.836~0.940);校准曲线为斜率接近于1的直线,Hosmer-Lemeshow拟合优度检验(χ^(2)=1.931,P=0.983),均显示该模型能够较准确地预测肺癌术后患者恐动症的风险。结论患者自我效能、疼痛、疲劳是肺癌术后患者恐动症发生的影响因素,此列线图预测模型具有良好的准确度和区分度,有助于医护人员预测肺癌术后恐动症的发生,采取合适措施降低恐动症的发生。展开更多
According to the freely linear Rossby wave theory, global 1°×1°climatology of Rossby deformation radius and phase speed are studied under the fiat bottom fluid approximation. Geographical variations in ...According to the freely linear Rossby wave theory, global 1°×1°climatology of Rossby deformation radius and phase speed are studied under the fiat bottom fluid approximation. Geographical variations in the contours of the phase speed are very similar to those of the Rossby radius of formation, which are mainly affected by stratification, rotation, water depth, topography, etc. The basin-crossing time of the first baroclinic Rossby wave is obtained and analyzed in the global ocean basins. The results are useful to learn the importance of Rosaby wave and the adiabatic adjustment of large-scale ocean circulation.展开更多
文摘A new genus and species of nodosaurid dinosaur： Zhejiangosaurus lishuiensis gen. et sp. nov. is erected herein. It is characterized by the sacrum consisting of at least three true sacral vertebrae, 5 caudal dorsal vertebrae fused to form the presacral rod, wide divergence of long slender preacetabular process of the ilium from the middle line of the body, and the fourth trochanter located at the femoral mid-length.
文摘钠离子电池(sodium-ion batteries,SIBs)具有成本低的潜在优势,有望成为替代锂离子电池(lithium ion batteries,LIBs)的储能设备。为提升钠离子电池的性能,开发出适应钠离子脱嵌的负极材料尤为重要。硫化锑(Sb_(2)S_(3))因其理论比容量高被认为是较好的钠离子电池负极材料。本文使用简单水热法将Sb_(2)S_(3)与石墨烯复合,制备Sb_(2)S_(3)/石墨烯复合材料(Sb_(2)S_(3)/Gr)。结果表明:Sb_(2)S_(3)/Gr作为钠离子电池负极时,不仅表现出良好的电导率(3.5×10~(-3)S/cm)和钠离子扩散速率(4.853×10~(-13)cm~2/s),而且在0.5 A/g的电流密度下,首圈库伦效率为76.27%,经150次循环后的比容量稳定在488 m A·h/g,表现出较高的比容量。Sb_(2)S_(3)/Gr复合材料表现出了极大的应用潜力,为高性能钠离子电池负极材料的研发提供了一定的参考价值。
文摘目的构建肺癌术后患者恐动症风险的列线图模型。方法选取2022年10月至2023年5月厦门市某三级甲等综合医院胸外科164例肺癌术后患者为研究对象。采用Logistic回归分析肺癌术后患者发生恐动症的影响因素。应用R软件构建肺癌术后患者恐动症的列线图模型,采用受试者操作特征(receiver operating characteristic,ROC)曲线下面积(area under curve,AUC)检验模型预测效果。结果肺癌术后患者恐动症的发生率为44.51%。Logistic回归分析结果显示,疼痛和疲劳是肺癌术后患者恐动症发生的危险因素(P<0.05);自我效能是恐动症发生的保护性因素(P<0.05)。ROC曲线显示该模型预测肺癌术后患者恐动症的AUC为0.888(95%CI:0.836~0.940);校准曲线为斜率接近于1的直线,Hosmer-Lemeshow拟合优度检验(χ^(2)=1.931,P=0.983),均显示该模型能够较准确地预测肺癌术后患者恐动症的风险。结论患者自我效能、疼痛、疲劳是肺癌术后患者恐动症发生的影响因素,此列线图预测模型具有良好的准确度和区分度,有助于医护人员预测肺癌术后恐动症的发生,采取合适措施降低恐动症的发生。
基金This study was supported by the National Natural Science Foundation of China under contract No.40576020the Youth Innovative Foundation Project of Polar Reasearch Institute of China under contract No.J0D 200601.
文摘According to the freely linear Rossby wave theory, global 1°×1°climatology of Rossby deformation radius and phase speed are studied under the fiat bottom fluid approximation. Geographical variations in the contours of the phase speed are very similar to those of the Rossby radius of formation, which are mainly affected by stratification, rotation, water depth, topography, etc. The basin-crossing time of the first baroclinic Rossby wave is obtained and analyzed in the global ocean basins. The results are useful to learn the importance of Rosaby wave and the adiabatic adjustment of large-scale ocean circulation.
