Results 11 to 20 of about 256,876 (152)
肝纤维化评价指标预测肝癌患者肝切除术后肝功能衰竭 [PDF]
目的天冬氨酸转氨酶-血小板比率指数 (APRI)与肝脏纤维化-4指数 (FIB-4)等指标已被证实可用于无创性评估肝纤维化、肝硬化程度,对肝细胞癌 (HCC)患者肝切除术预后评估有较高的准确性。本研究旨在探讨APRI与FIB-4对HCC患者肝切除术后发生肝功能衰竭(PHLF)的预测能力。方法回顾性分析426例在我院接受肝切除术的HCC患者的临床资料。收集患者肝切除术前2周内的实验室数据,计算APRI、FIB-4、Child-Pugh评分。采用受试者工作特征(ROC)曲线确定APRI、FIB-4 ...
林水荣 +7 more
core +1 more source
传统变压器状态评估方法,多关注设备当前状态分析,缺少全方位预测其潜在健康状态方法,也无法确定变压器将来的故障发生概率。本文提出了一种基于自适应概率神经网络的变压器健康状态评估方法。该方法,首先从变压器内部本体特征和外部实时监测环境两方面,确定变压器健康状态指标因子,并进行数据预处理得到不相关的指标因子;然后,根据指标因子和样本标签,引入自适应参数训练,训练出用于预测的概率神经网络模型;最后,利用模型参数,通过将指标分为静态基础指标和动态可变指标,前者直接输入到网络中 ...
张寒, 刘卫东, 潘志敏, 栗娟
doaj
Objective To investigate the effect of Traditional Chinese Medicine (TCM) health preservation exercise in the rehabilitation treatment of patients with late stage of lumbar disc herniation (LDH).
ZHAO Xiangli (赵祥丽) +1 more
doaj +1 more source
随着互联网技术的发展,网络舆情热点信息能在短时间内迅速传播。预测舆情热点的发展趋势,有助于高校对学生思想健康状况进行分析管理,也是当下网络舆情信息研究领域的重要课题。针对微博中的舆情信息文本,构建基于时间编码长短期记忆网络(LSTM)的高校舆情热点趋势预测模型,并与支持向量机、循环神经网络两种模型的预测效果进行对比,验证了基于时间编码的LSTM算法在舆情趋势预测上的准确率。最后,利用微博中的高校实时舆情事件对构建的模型预测效果进行评估,并动态调整评估参数,实现了对评估性能的优化,预测效果得到了显著提升。
易杰 +4 more
doaj +1 more source
Abstract Qualitative approaches are increasingly applied in conservation social science, yet methodological reflection remains limited. Member checking, a process of returning findings to participants for feedback, is widely recognized outside conservation as a means to enhance rigor and reciprocity, but it is rarely reported in conservation research ...
Judith J. Rakowski +6 more
wiley +1 more source
ABSTRACT Although the use of AI technologies (e.g., chatbots and automated writing evaluations (AWE)) has gained considerable attention in language learning fields in recent years, how AI technologies have been designed and implemented in language learning education, as well as their effectiveness, is understudied.
Shen Qiao +2 more
wiley +1 more source
ABSTRACT Collaborative writing has attracted increasing attention in English as a Foreign Language (EFL) instruction due to its potential to enhance learners’ writing competence. However, few studies have examined the comparative effects of collaborative versus independent writing on EFL learners’ individual performance, especially in higher‐order ...
Ting Huang, Chenze Wu, Wenkang Zhang
wiley +1 more source
Psychometric framework for coexistence with large carnivores
Abstract Human–carnivore coexistence is essential for biodiversity conservation, yet measuring the attitudes and behaviors that support it remains methodologically challenging. We developed psychometric scales to assess willingness to coexist with carnivores and the underlying beliefs of this coexistence through an iterative expert elicitation process ...
Benjamin Ghasemi +14 more
wiley +1 more source
通过深入研究建立了大尺度洪灾损失与影响评估指标体系,构建了大尺度洪灾损失与影响预估的方法体系,即通过数值模拟确定大尺度洪水的淹没特征.根据土地利用类型与承灾体类型在空间上的对应分布特点实现了社会经济统计数据的空间化,通过GIS软件的空间分析功能完成大尺度洪灾社会影响和经济财产损失的空间化评估.黄河下游存在发生大尺度洪灾的可能,其洪水管理需要洪灾损失与影响的预评估,但黄河下游目前尚没有比较合适的洪灾预评估方法.经过对黄河下游北岸原阳在1958年型洪水下的模拟决溢洪水所造成的灾害损失与社会影响预估表明 ...
戴尔阜 +7 more
core

