[Association between HLA-DRB1 gene polymorphisms and genetic susceptibility of early-onset severe preeclampsia]. [PDF]
Lai CC +4 more
europepmc +1 more source
Study on the diagnostic value of macrophage migration inhibitory factor in neurosyphilis [PDF]
目的: 神经梅毒诊断依赖于实验室检查结果,脑脊液(cerebrospinalfluidrapid,CSF)快速血浆反应素环状卡片试验(rapidplasmareagintest,RPR)常作为神经梅毒的确诊指标,但脑脊液RPR的灵敏度低,易造成漏诊;即使结合脑脊液的其他参数(蛋白和白细胞等),也可能造成神经梅毒的漏诊。巨噬细胞移动抑制因子(macrophagemigrationinhibitoryfactor,MIF)作为一种炎症因子已广泛应用于神经系统疾病的诊断 ...
张亚锋
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Using customs data to understand overlooked trade in non‐CITES birds between Africa and Asia
Abstract The international trade in live birds poses risks to animals, people, and biodiversity. To effectively mitigate these risks, decision‐makers require information on the volume, dynamics, and direction of trade. Despite Africa once being the largest exporter of birds by region, very little data exist on recent trade in live birds not listed on ...
Alisa Davies +4 more
wiley +1 more source
休眠卵是轮虫在恶劣生态条件下形成的滞育结构。本研究用光学显微镜和扫描电子显微镜对东湖14种轮虫休眠卵形态进行了观察,其中关于尾突臂尾轮虫(Brachionuscaudatus,Barrois&Daday)、方形臂尾轮虫(Bquadridentatus,hermann)、中型晶囊轮虫(Asplanchnaintermedia,Hudson)、顶生三肢轮虫(Filiniaterminalis,Plate)的休眠卵的形态特征尚未见过报道。这些休眠卵一般卵壳较厚,颜色较深,壳表面有纹饰。不同种轮虫的休眠卵形态、
林里,周洁,黄祥飞
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Attainment Pairing Effects on Cognitive Conflict in Technology‐enhanced EFL Cooperative Tasks
ABSTRACT This study examines how attainment pairing (high‐high versus high‐low versus low‐low attainment) impacts English as a Foreign Language (EFL) learner engagement during technology‐enhanced cooperative writing tasks. Seventy‐eight Chinese university learners formed 39 dyads (13 pairs per group) via Tencent Meeting.
Ying Liu, Allen Thurston
wiley +1 more source
[Association of gene polymorphisms of MyD88 and TICAM1 and their interactions with community-acquired pneumonia in children]. [PDF]
Yang Y, Yang SY, Chen ZB, Liu L.
europepmc +1 more source
Study on Ensemble Algorithm for Multi-class Gene Microarray Datasets [PDF]
集成学习是当前机器学习领域的一个研究热点,具体到多分类问题,旨在通过一组差异的分类器共同解决起初的多分类问题,然后经过大多数投票等策略将各个分类器的输出结果进行融合。集成多分类算法相比于单个的优秀分类器往往性能上更准确、更稳定,同时还具有更强的泛化能力。在解决多分类问题时,基于纠错输出编码算法(ECOC)。这是解决多分类问题的一种灵活、高效的算法框架,关键要点是将多分类转变为多个二分类问题。此外,遗传规划算法可用于解决二分类问题,通过进化计算得到准确的分类规则。本文在已有的研究基础上 ...
曾志浩
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Learner‐Focused Strategy Instruction From the Teachers’ and the Learners’ Perspective
ABSTRACT Numerous large‐scale quantitative studies have been conducted to yield a macro‐level picture of the effectiveness of strategy instruction. However, little is understood about learners' actual processing of strategy instruction and interaction with the teachers delivering it.
Isobel Kai‐Hui Wang, Andrew D. Cohen
wiley +1 more source
目的探讨FⅫ基因exon146C/T基因多态性与血栓形成的关联性。方法采用PCR-RFLP法鉴定了92例血栓性脑梗塞患者和87例静脉血栓患者及129例健康人的FⅫ基因exon146C/T基因型及C、T等位基因分布频率,采用多元Logistic非条件回归分析方法,进行多因素分析,解析FⅫ基因46C/T多态性与血栓性脑梗塞、静脉血栓形成的关联性。结果血栓性脑梗塞组和静脉血栓组的C等位基因分布频率均高于对照组,血栓性脑梗塞组的C/C基因型在血栓形成中的危险性是T/T基因型的14.533倍,具有统计学意义 ...
张玲 +5 more
doaj
Karyotype analysis of diploid oat germplasm introduced from Canada [PDF]
The chromosome karyotype of three diploid oat species was studied with squash method. The results showed that the karyotype formula of Avena strigosa was 2 n =2 x = 14 = 10 m + 4 sm(2SAT),with metacentric and submetacentric chromosomes,1 pair of ...
Liu, W., Wu, B., Zhang, Z.
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