目的探讨van der Linden评分和营养风险筛查2002(NRS 2002)评分与脊柱转移瘤患者预后的关系。方法回顾性分析2010年1月—2020年12月宜宾市第一人民医院骨科收治的脊柱转移瘤住院患者127例的临床资料,随访时间截至2022年6月30日。采用Kap...目的探讨van der Linden评分和营养风险筛查2002(NRS 2002)评分与脊柱转移瘤患者预后的关系。方法回顾性分析2010年1月—2020年12月宜宾市第一人民医院骨科收治的脊柱转移瘤住院患者127例的临床资料,随访时间截至2022年6月30日。采用Kaplan-Meier法绘制生存曲线,Log-rankχ2检验和Cox回归分析探讨van der Linden评分和NRS 2002评分与患者预后的关系。结果平均随访时间11.7个月,中位生存时间为10个月,随访期内病死率76.38%,6个月和12个月生存率分别为69.29%和27.56%。van der Linden评分0~3分、4~5分和6分的患者生存时间分别为(7.50±2.86)、(15.45±4.49)和(19.00±6.40)个月,12个月生存率分别为3.75%、65.00%和85.71%;NRS 2002评分<3分和≥3分的患者12个月生存率分别为34.21%和17.65%。Cox回归分析显示,van der Linden评分和NRS 2002评分是脊柱转移瘤预后的影响因素。以van der Linden评分为6分的HR(95%CI)为参照,van der Linden评分0~3分和4~5分的HR(95%CI)分别为6.915(2.048~23.363)和1.715(1.068~2.757);以NRS 2002评分<3分的HR(95%CI)为参照,NRS 2002评分≥3分的HR(95%CI)为1.838(1.186~2.850)。结论脊柱转移瘤患者整体预后差,van der Linden评分和NRS 2002评分与患者预后有一定相关性。展开更多
Competition is the common ecological phenomenon that exists in a stand after canopy closure. The effect of competition on DBH, height, crown diameter and crown area of individual amur linden trees was examined. We use...Competition is the common ecological phenomenon that exists in a stand after canopy closure. The effect of competition on DBH, height, crown diameter and crown area of individual amur linden trees was examined. We used two plots data, from amur linden (Tilia amurensis) plantation, 14 years old, in Liaoning province, to analyze the correlations among DBH, total height, crown diameer and crown area, and used the size-ratio of competiting tree DBHs to subject tree DBH to calculate distance-dependent competition index. The results show that DBH has the largest variation comparing with standard deviations and coeficeints. DBH and crown factors have higher correlations. Competition index is an important factor in tree growth. The best fitting models are exponent, for Cl vs height and Cl vs crown factors, and power, for Cl vs DBH. The more closed correlation model is Cl vs DBH (R2=0.7028), which performed 16.32%–18.86% better than other models. These reflect that DBH is an important indicator to display stand competition for amur linden.展开更多
从东北特产椴树蜜中分离1株酵母菌,将初筛得到的酵母菌经过向发酵液中加入不同克数的葡萄糖发酵试验性能测定的比较,筛选出1株适合用于蜂蜜酿造的具有耐受80 g/100 m L葡萄糖的高糖特性的酵母菌YMI-37,采用透射电子显微镜(transmission ...从东北特产椴树蜜中分离1株酵母菌,将初筛得到的酵母菌经过向发酵液中加入不同克数的葡萄糖发酵试验性能测定的比较,筛选出1株适合用于蜂蜜酿造的具有耐受80 g/100 m L葡萄糖的高糖特性的酵母菌YMI-37,采用透射电子显微镜(transmission electron microscope,TEM)观察酵母菌YMI-37在不同葡萄糖浓度下细胞内部结构变化,并对YMI-37进行生理生化特性和分子生物学的鉴定,根据生理生化和26S r DNA基因测序综合分析,初步鉴定为酵母菌属的酿酒酵母(Saccharomyces cerevisiae)。展开更多
文摘目的探讨van der Linden评分和营养风险筛查2002(NRS 2002)评分与脊柱转移瘤患者预后的关系。方法回顾性分析2010年1月—2020年12月宜宾市第一人民医院骨科收治的脊柱转移瘤住院患者127例的临床资料,随访时间截至2022年6月30日。采用Kaplan-Meier法绘制生存曲线,Log-rankχ2检验和Cox回归分析探讨van der Linden评分和NRS 2002评分与患者预后的关系。结果平均随访时间11.7个月,中位生存时间为10个月,随访期内病死率76.38%,6个月和12个月生存率分别为69.29%和27.56%。van der Linden评分0~3分、4~5分和6分的患者生存时间分别为(7.50±2.86)、(15.45±4.49)和(19.00±6.40)个月,12个月生存率分别为3.75%、65.00%和85.71%;NRS 2002评分<3分和≥3分的患者12个月生存率分别为34.21%和17.65%。Cox回归分析显示,van der Linden评分和NRS 2002评分是脊柱转移瘤预后的影响因素。以van der Linden评分为6分的HR(95%CI)为参照,van der Linden评分0~3分和4~5分的HR(95%CI)分别为6.915(2.048~23.363)和1.715(1.068~2.757);以NRS 2002评分<3分的HR(95%CI)为参照,NRS 2002评分≥3分的HR(95%CI)为1.838(1.186~2.850)。结论脊柱转移瘤患者整体预后差,van der Linden评分和NRS 2002评分与患者预后有一定相关性。
文摘Competition is the common ecological phenomenon that exists in a stand after canopy closure. The effect of competition on DBH, height, crown diameter and crown area of individual amur linden trees was examined. We used two plots data, from amur linden (Tilia amurensis) plantation, 14 years old, in Liaoning province, to analyze the correlations among DBH, total height, crown diameer and crown area, and used the size-ratio of competiting tree DBHs to subject tree DBH to calculate distance-dependent competition index. The results show that DBH has the largest variation comparing with standard deviations and coeficeints. DBH and crown factors have higher correlations. Competition index is an important factor in tree growth. The best fitting models are exponent, for Cl vs height and Cl vs crown factors, and power, for Cl vs DBH. The more closed correlation model is Cl vs DBH (R2=0.7028), which performed 16.32%–18.86% better than other models. These reflect that DBH is an important indicator to display stand competition for amur linden.
文摘从东北特产椴树蜜中分离1株酵母菌,将初筛得到的酵母菌经过向发酵液中加入不同克数的葡萄糖发酵试验性能测定的比较,筛选出1株适合用于蜂蜜酿造的具有耐受80 g/100 m L葡萄糖的高糖特性的酵母菌YMI-37,采用透射电子显微镜(transmission electron microscope,TEM)观察酵母菌YMI-37在不同葡萄糖浓度下细胞内部结构变化,并对YMI-37进行生理生化特性和分子生物学的鉴定,根据生理生化和26S r DNA基因测序综合分析,初步鉴定为酵母菌属的酿酒酵母(Saccharomyces cerevisiae)。
