Results 61 to 70 of about 4,560 (111)

[Impact of aspirin use on pregnancy outcomes in patients with systemic lupus erythematosus]. [PDF]

Beijing Da Xue Xue Bao Yi Xue Ban
Li X, Zhao J, Mu R.
europepmc   +1 more source

亚热带森林碳储量与固碳量的构成及影响因素——以武宁县为例

Shuitu Baochi Xuebao
目的准确评估区域森林碳储量和固碳量的数值、分布特点、构成和影响因素，是科学制定森林管理及相应调控政策的重要依据。方法选择隶属于亚热带典型森林区域的生态型县域作为研究对象，选取97个不同树种及不同龄组的样地开展地上、地下碳储量和固碳量的实测，分析碳储量的构成及其与立地因子的相互关系，并将实测固碳量值与CASA模型计算值比较，以期为亚热带森林碳储量和固碳量评估提供参考。结果1）2020年研究区森林平均碳密度、总碳储量、植被层总固碳量分别为158.05 t/hm²、4.07×107 t、28.41×105 t/
朱锦奇, 熊媛巧, 易扬, 王玉杰, 刘敏, 张桂莲, 徐淑蕾, 张娜, 郑博福   +8 more
doaj   +2 more sources

[Bacterial Infection Spectrum and Antimicrobial Resistance in 2850 Cases of Community-Acquired Pneumonia in Children]. [PDF]

Sichuan Da Xue Xue Bao Yi Xue Ban
Zhong M, Xie J, Wang H, Fan J, Li M, Zou F, Li L.   +6 more
europepmc   +1 more source

[Combined assessment of gastric mucosal damage associated with <i>Helicobacter pylori</i> infection in children by virulence factors and pepsinogen]. [PDF]

Zhongguo Dang Dai Er Ke Za Zhi
Huang CL, Lin Q.
europepmc   +1 more source

[Application of an interpretable neural network framework based on the LASSO-proj algorithm for warfarin dose prediction]. [PDF]

Sheng Wu Yi Xue Gong Cheng Xue Za Zhi
Zhong C, Zhu Y, Gu X.
europepmc   +1 more source

大兴安岭重度火烧迹地不同林龄落叶松人工林土壤团聚体养分特征

Shuitu Baochi Xuebao
[目的] 为探寻大兴安岭重度火烧迹地植被恢复后不同林龄落叶松人工林下土壤团聚体养分含量与分布的变化。[方法] 以大兴安岭1987年发生特大森林火灾形成的重度火烧迹地上分别在1989年、2000年、2010年种植的落叶松人工林(11,21,32年)作为研究对象,通过测定土壤团聚体各粒级有机碳、全氮、全磷、碱解氮、速效磷和速效钾的含量,开展土壤团聚体养分分布特征研究。[结果] (1)在重度火烧迹地上不同林龄的落叶松人工林中,土壤各粒级团聚体有机碳、全氮、全磷、碱解氮和速效钾的含量均随着粒径的减小逐渐上升 ...
韦自强, 郑磊, 贺怀宇, 王振国, 伊怀虎, 任鹏, 辛颖   +6 more
doaj  

[Prognostic analysis of anticoagulation therapy in elderly patients with cardioembolic stroke]. [PDF]

Beijing Da Xue Xue Bao Yi Xue Ban
Meng Q, Fan M, Guo H, Zhang H, Wang M, Wang S, Peng H, Wang X, Hou T, Qin X, Chen D, Li J, Wu Y, Wu T, Chen H, Hu Y.   +15 more
europepmc   +1 more source

[Development and validation of an interpretable machine learning model for predicting reguirement of early invasive mechanical ventilation in patients with acute pancreatitis]. [PDF]

Nan Fang Yi Ke Da Xue Xue Bao
Wu X, Sha T, Hu H, Sun M, Wu J, Chen Z.
europepmc   +1 more source

[Application of biological age for cardiovascular risk prediction in a community-based Chinese cohort]. [PDF]

Beijing Da Xue Xue Bao Yi Xue Ban
Lu M, Wang B, Kang J, Liu Q, Zhou Y, Sun Y, Shen P, Lin H, Tang X, Gao P.   +9 more
europepmc   +1 more source

[A prospective cohort study of gut microbiota changes in very preterm infants with bronchopulmonary dysplasia]. [PDF]

Zhongguo Dang Dai Er Ke Za Zhi
Huang J, Lai JD, Lin XZ, Zheng Z, Wang YS.   +4 more
europepmc   +1 more source