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Improving the nutritional values of yellow mealworm Tenebrio molitor(Coleoptera: Tenebrionidae) larvae as an animal feed ingredient: a review 被引量:1
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作者 Linggawastu Syahrulawal Magnhild Oust Torske +2 位作者 Rumakanta Sapkota Geir Næss Prabhat Khanal 《Journal of Animal Science and Biotechnology》 SCIE CAS CSCD 2024年第1期35-52,共18页
Yellow mealworm larvae(YML;Tenebrio molitor) are considered as a valuable insect species for animal feed due to their high nutritional values and ability to grow under different substrates and rearing conditions. Adva... Yellow mealworm larvae(YML;Tenebrio molitor) are considered as a valuable insect species for animal feed due to their high nutritional values and ability to grow under different substrates and rearing conditions. Advances in the understanding of entomophagy and animal nutrition over the past decades have propelled research areas toward testing multiple aspects of YML to exploit them better as animal feed sources. This review aims to summarize various approaches that could be exploited to maximize the nutritional values of YML as an animal feed ingredient. In addition, YML has the potential to be used as an antimicrobial or bioactive agent to improve animal health and immune function in production animals. The dynamics of the nutritional profile of YML can be influenced by multiple factors and should be taken into account when attempting to optimize the nutrient contents of YML as an animal feed ingredient. Specifically, the use of novel land-based and aquatic feeding resources, probiotics, and the exploitation of larval gut microbiomes as novel strategies can assist to maximize the nutritional potential of YML. Selection of relevant feed supplies, optimization of ambient conditions, the introduction of novel genetic selection procedures, and implementation of effective post-harvest processing may be required in the future to commercialize mealworm production. Furthermore, the use of appropriate agricultural practices and technological improvements within the mealworm production sector should be aimed at achieving both economic and environmental sustainability. The issues highlighted in this review could pave the way for future approaches to improve the nutritional value of YML. 展开更多
关键词 Alternative protein source Feed application Nutritional value Yellow mealworm
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A Cognitive Study on Politeness Intention Processing and Its Association with Pragmatic Failure in Cross-Cultural Communication
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作者 Rong YAN Tengfei FENG Samad ZARE 《Chinese Journal of Applied Linguistics》 2024年第3期481-497,525,共18页
Although a large number of studies have focused on various aspects of politeness,very little is known about how politeness intention is activated cognitively during verbal communication.The present study aims to explo... Although a large number of studies have focused on various aspects of politeness,very little is known about how politeness intention is activated cognitively during verbal communication.The present study aims to explore the cognitive mechanism of politeness intention processing,and how it is related to pragmatic failure during cross-cultural communication.Using 30 Chinese EFL university students who were instructed to finish a probe word judgment task with 96 virtual scenarios,the results indicate that within both mono-and cross-cultural contexts,the response time in the experimental scenarios was significantly slower than that of the filler scenarios.This suggests that politeness intention was activated while understanding the surface meaning of the conversation;however,the EFL learners could not completely avoid the negative transfer of their native politeness conventions when they were comprehending the conversational intention of the target language.Furthermore,no significant differences in response time were found between the groups with high and low English pragmatic competence,illustrating that transferring the pragmatic rules and principles into cross-cultural communication skills was more cognitively demanding.Overall,this study adds to the literature on politeness research and provides some implications for foreign language pragmatic instructions. 展开更多
关键词 politeness intention cognitive processing pragmatic failure cross-cultural pragmatics cross-cultural communication
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Yield and Nutritive Values of Semi- and Non-Fall Dormant Alfalfa Cultivars under Late-Cutting Schedule in California’s Central Valley
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作者 Sultan Begna Dan Putnam +2 位作者 Dong Wang Khaled Bali Longxi Yu 《American Journal of Plant Sciences》 CAS 2024年第10期858-876,共19页
California is one of the major alfalfa (Medicago sativa L) forage-producing states in the U.S, but its production area has decreased significantly in the last couple of decades. Selection of cultivars with high yield ... California is one of the major alfalfa (Medicago sativa L) forage-producing states in the U.S, but its production area has decreased significantly in the last couple of decades. Selection of cultivars with high yield and nutritive value under late-cutting schedule strategy may help identify cultivars that growers can use to maximize yield while maintaining area for sustainable alfalfa production, but there is little information on this strategy. A field study was conducted to determine cumulative dry matter (DM) and nutritive values of 20 semi- and non-fall dormant (FD) ratings (FD 7 and FD 8 - 10, respectively) cultivars under 35-day cut in California’s Central Valley in 2020-2022. Seasonal cumulative DM yields ranged from 6.8 in 2020 to 37.0 Mg·ha−1 in 2021. Four FD 8 - 9 cultivars were the highest yielding with 3-yrs avg. DM greater than the lowest yielding lines by 46%. FD 7 cultivar “715RR” produced the highest crude protein (CP: 240 g·Kg−1) while FD 8 cultivar “HVX840RR” resulted in the highest neutral detergent fiber digestibility (NDFD: 484 g·Kg−1, 7% greater than the top yielding cultivars) but with DM yield intermediate. Yields and NDFD correlated positively but weakly indicating some semi- and non-FD cultivars performing similarly. These results suggest that selecting high yielding cultivars under 35-day cutting schedule strategy can be used as a tool to help growers to maximize yield while achieving good quality forages for sustainable alfalfa production in California’s Central Valley. 展开更多
关键词 ALFALFA Maximizing Yield Nutritive Value CULTIVAR Cutting Schedule Production Area California
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A Comparative Study of the L2 Pragmatic Competence of University Students in Hong Kong and the Chinese Mainland:The Contributions of Sociocultural Context and Linguistic Proficiency
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作者 Scott AUBREY Rod ELLIS 《Chinese Journal of Applied Linguistics》 2024年第3期371-392,524,共23页
This study investigates the differences in pragmatic competence between Hong Kong and Chinese mainland university students.Participants included 19 native speakers of English,115 Chinese mainland students,divided into... This study investigates the differences in pragmatic competence between Hong Kong and Chinese mainland university students.Participants included 19 native speakers of English,115 Chinese mainland students,divided into those who had spent time abroad in an English-speaking country(CM A)and those who had not(CM NA),and 97 Hong Kong students,divided into those from an English-medium secondary school(Hong Kong EMI)and those from a Chinese-medium school(Hong Kong CMI).Linguistic proficiency was measured by a C-test,and pragmatic competence by a Metapragmatic Knowledge Test,an Irony Test and a Monologic Role Play.Group scores were compared using ANCOVAs to control for differences in proficiency.The results point to a continuum of pragmatic competence—EMI>CMI>CM A>CM NA—reflecting the groups’access to English in real-life contexts.The differences between the Hong Kong groups and the Chinese mainland groups were clearest in those tests measuring processing capacity(i.e.,Irony Response Time and the Monologic Role Play).CM A,but not CM NA,performed as well as the Hong Kong groups on measures of metapragmatic awareness.The results are discussed in terms of Bialystok’s(1993)distinction between analyzed representation and control of processing. 展开更多
关键词 pragmatic competence social context Hong Kong the Chinese mainland metapragmatic knowledge processing capacity
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Effect of FeSi additive in dual-chamber sample cup on thermal analysis characteristic values and vermiculating rate of compacted graphite iron
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作者 De-quan Shi Ze-yu Liu +1 位作者 Gui-li Gao Yi-cheng Feng 《China Foundry》 SCIE EI CAS CSCD 2024年第1期91-100,共10页
Thermal analysis plays a key role in the online inspection of molten iron quality.Different solidification process of molten iron can be reflected by thermal analysis curves,and silicon is one of important elements af... Thermal analysis plays a key role in the online inspection of molten iron quality.Different solidification process of molten iron can be reflected by thermal analysis curves,and silicon is one of important elements affecting the solidification of molten iron.In this study,FeSi75 was added in one chamber of the dual-chamber sample cup,and the influences of FeSi75 additive on the characteristic values of thermal analysis curves and vermiculating rate were investigated.The results show that with the increase of FeSi75,the start temperature of austenite formation TALfirstly decreases and then increases,but the start temperature of eutectic growth TSEF,the lowest eutectic temperature TEU,temperature at maximum eutectic reaction rate TEM,and highest eutectic temperature TERkeep always an increase.The temperature at final solidification point TEShas little change.The FeSi75 additive has different influences on the vermiculating rate of molten iron with different vermiculation,and the vermiculating rate increases for lower vermiculation molten iron while decreases for higher one.According to the thermal analysis curves obtained by a dual-chamber sample cup with 0.30wt.%FeSi75 additive in one chamber,the vermiculating rate of molten iron can be evaluated by comparing the characteristic values of these curves.The time differenceΔtERcorresponding to the highest eutectic temperature TERhas a closer relationship with the vermiculating rate,and a parabolic regression curve between the time differenceΔtERand vermiculating rateηhas been obtained within the range of 65%to 95%,which is suitable for the qualified melt. 展开更多
关键词 FeSi75 additive characteristic value vermiculating rate thermal analysis compacted graphite iron
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English Translation of Public Signs in Chinese from a Pragmatic Perspective
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作者 YANG Chen-min GAO Wen-cheng 《Journal of Literature and Art Studies》 2024年第10期854-860,共7页
This paper applies Newmark’s communicative translation and semantic translation theory to analyzing the English translation of Chinese public signs and its pragmatic functions. It finds that communicative translation... This paper applies Newmark’s communicative translation and semantic translation theory to analyzing the English translation of Chinese public signs and its pragmatic functions. It finds that communicative translation is typically used to fulfill the communicative function of public signs. Both communicative and semantic translation are employed to adapt to different situational contexts, in order to preserve the pragmatic functions of the Chinese public signs. The differences between Chinese and English lead to pragmatic errors in translation, making the translator’s bilingual proficiency and familiarity with English culture necessary. The fundamental principle of public sign translation is to be concise and clear, which often requires modifying some complex rhetorical devices from Chinese in translation. 展开更多
关键词 public sign Chinese-English translation pragmatic analysis
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How Sense of Ritual in Tourism Impacts Tourists’Co-Creation of Tourism Experience Values:A Study Based on the Theory of Value Co-Creation
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作者 Yi Min Zhang Guangyu Sun Genjin 《Contemporary Social Sciences》 2024年第2期67-84,共18页
Establishing a sense of ritual within tourism consumption scenarios offers tourists the opportunity for interactive engagement.Drawing upon the value co-creation theory,this study constructed an influence mechanism mo... Establishing a sense of ritual within tourism consumption scenarios offers tourists the opportunity for interactive engagement.Drawing upon the value co-creation theory,this study constructed an influence mechanism model to examine tourists'active engagement in the process of co-creating tourism experience values.It employed Partial Least Squares Structural Equation Modeling(PLS-SEM)to empirically test the proposed hypotheses.The findings demonstrate that the model constructed in the present study exhibits robust reliability,validity,and explanatory power.The perception of the sense of ritual in tourism exerts a significant positive influence on tourists’co-creation of tourism experience values,thereby significantly enhancing both the communitas and flow experienced by tourists during their travels.Moreover,such communitas and flow can mediate the influence of the sense of ritual in tourism on tourists’co-creation of tourism experience values.This study contributes to advancing the current research on tourists’co-creation of tourism experience values and the sense of ritual in tourism,thereby providing theoretical foundations for cultivating a sense of ritual within tourism consumption scenarios. 展开更多
关键词 sense of ritual in tourism tourists’co-creation of tourism experience values theory of value co-creation theory of Interaction Ritual Chains
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A Study on the Explainability of Thyroid Cancer Prediction:SHAP Values and Association-Rule Based Feature Integration Framework
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作者 Sujithra Sankar S.Sathyalakshmi 《Computers, Materials & Continua》 SCIE EI 2024年第5期3111-3138,共28页
In the era of advanced machine learning techniques,the development of accurate predictive models for complex medical conditions,such as thyroid cancer,has shown remarkable progress.Accurate predictivemodels for thyroi... In the era of advanced machine learning techniques,the development of accurate predictive models for complex medical conditions,such as thyroid cancer,has shown remarkable progress.Accurate predictivemodels for thyroid cancer enhance early detection,improve resource allocation,and reduce overtreatment.However,the widespread adoption of these models in clinical practice demands predictive performance along with interpretability and transparency.This paper proposes a novel association-rule based feature-integratedmachine learning model which shows better classification and prediction accuracy than present state-of-the-artmodels.Our study also focuses on the application of SHapley Additive exPlanations(SHAP)values as a powerful tool for explaining thyroid cancer prediction models.In the proposed method,the association-rule based feature integration framework identifies frequently occurring attribute combinations in the dataset.The original dataset is used in trainingmachine learning models,and further used in generating SHAP values fromthesemodels.In the next phase,the dataset is integrated with the dominant feature sets identified through association-rule based analysis.This new integrated dataset is used in re-training the machine learning models.The new SHAP values generated from these models help in validating the contributions of feature sets in predicting malignancy.The conventional machine learning models lack interpretability,which can hinder their integration into clinical decision-making systems.In this study,the SHAP values are introduced along with association-rule based feature integration as a comprehensive framework for understanding the contributions of feature sets inmodelling the predictions.The study discusses the importance of reliable predictive models for early diagnosis of thyroid cancer,and a validation framework of explainability.The proposed model shows an accuracy of 93.48%.Performance metrics such as precision,recall,F1-score,and the area under the receiver operating characteristic(AUROC)are also higher than the baseline models.The results of the proposed model help us identify the dominant feature sets that impact thyroid cancer classification and prediction.The features{calcification}and{shape}consistently emerged as the top-ranked features associated with thyroid malignancy,in both association-rule based interestingnessmetric values and SHAPmethods.The paper highlights the potential of the rule-based integrated models with SHAP in bridging the gap between the machine learning predictions and the interpretability of this prediction which is required for real-world medical applications. 展开更多
关键词 Explainable AI machine learning clinical decision support systems thyroid cancer association-rule based framework SHAP values classification and prediction
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A Study on the Values and Strategies of English Picture Book Reading for Improving Pupils’ English Reading Literacy
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作者 MAI Yuxuan 《Sino-US English Teaching》 2024年第3期120-126,共7页
Reading is one of the core skills in English learning.It is indispensable for EFL learners to develop good English reading literacy in primary schools.English picture books are consistent with pupils’cognitive and th... Reading is one of the core skills in English learning.It is indispensable for EFL learners to develop good English reading literacy in primary schools.English picture books are consistent with pupils’cognitive and thinking modes,which is valuable to improve their English reading literacy.However,at present,most Chinese pupils have some problems in English reading.The paper aims at analyzing the current problems in Chinese pupils’English reading and digging out the values and strategies of English picture book reading,so as to stimulate their reading interests,cultivate their intercultural awareness,and improve their English reading literacy. 展开更多
关键词 English reading literacy English picture book reading values STRATEGIES
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An In-depth Interpretation of the Universal Declaration of Human Rights With the Common Values of Humanity As the Research Paradigm
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作者 ZHANG Wenxian 《The Journal of Human Rights》 2024年第3期495-508,共14页
Interpreting the Universal Declaration of Human Rights from political,juridical and philosophical perspectives is es-sential for promoting the guiding principles of the Declaration,build-ing consensus on human rights,... Interpreting the Universal Declaration of Human Rights from political,juridical and philosophical perspectives is es-sential for promoting the guiding principles of the Declaration,build-ing consensus on human rights,and advancing human rights practice in the new historical context.To conduct an academic,systematic in-terpretation of the Declaration that conforms to the trends of the times and answers the fundamental questions of the world,it is necessary to find a new research paradigm.The common values of humanity,namely peace,development,equity,justice,democracy and freedom,put forward by Xi Jinping,general secretary of the Communist Party of China(CPC)Central Committee,provide the most explanatory and penetrating scientific paradigm for reaching the issue.This paper an-alyzes and reflects on the views,value foundation and principled(con-tractual)consensus of human rights in the Declaration,and narrates and foresees the far-reaching significance of the three global initia-tives(namely,the Global Development Initiative,the Global Security Initiative,and the Global Civilization Initiative)with the common val-ues of humanity as the soul in advancing the modernization of global human rights governance and building a new form of human rights civilization. 展开更多
关键词 common values of humanity paradigm based on the common values of humanity Universal Declaration of Human Rights views of human rights three global initiatives
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A Literature Review on the Identification of Socialist Core Values
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作者 Yangyang Fan 《Journal of Contemporary Educational Research》 2024年第9期158-165,共8页
Socialist core values are the concentrated expression and highly condensed values of the state,society,and individuals.They are also the embodiment of the values and spiritual consensus and pursuit in the life of the ... Socialist core values are the concentrated expression and highly condensed values of the state,society,and individuals.They are also the embodiment of the values and spiritual consensus and pursuit in the life of the state and society.This article analyzes and summarizes the research results on the identification of socialist core values in China in recent years,mainly sorting out aspects such as the significance of identification,the dialectical relationship between identification and practice,differences in identification levels among different groups,and paths to enhance identification.Finally,suggestions for further deepening future research are proposed. 展开更多
关键词 Socialist core values IDENTIFICATION PRACTICE
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Exploration of Curriculum Ideology and Politics Integrating Medical Humanities Cultivation Model to Enhance Medical Core Values
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作者 Wenjuan Ni Ranhao Li +1 位作者 Yaqing Guo Wei Wang 《Journal of Contemporary Educational Research》 2024年第5期1-7,共7页
Purpose:To explore the application effect of the cultivation mode of Curriculum Ideology and Political Integration of Medical Humanities to enhance the core values of medicine in the clinical internship stage of medic... Purpose:To explore the application effect of the cultivation mode of Curriculum Ideology and Political Integration of Medical Humanities to enhance the core values of medicine in the clinical internship stage of medical students.Methods:Students in the clinical internship stage of the First Affiliated Hospital of Baotou Medical College were selected,and a total of 156 students in one random class in each grade were taken as the observation group and received the integration cultivation mode;148 students were taken as the control group and employed the traditional mode.The teaching effect of interns in the two groups was analyzed.Results:The teaching performance of students in both groups after clinical internship teaching was improved compared with that before admission;the teaching performance,teaching effect,teaching evaluation,and teaching satisfaction of the observation group were higher than that of the control group.Conclusion:The integration of the medical humanities training model with curriculum ideology and politics in the clinical internship of medical students is conducive to the improvement of teaching performance,teaching evaluation,teaching satisfaction of teachers and students,and the development and improvement of core values of medical students,which is of good value for teaching application. 展开更多
关键词 Curriculum ideology and politics Medical humanities Medical students Core values Clinical internship
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本质与价值:数字时代广告本体的再认识
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作者 姚曦 任文姣 《武汉大学学报(哲学社会科学版)》 北大核心 2025年第1期125-132,共8页
用传播的方式促进从生产到消费转换的行为皆为存在意义上的广告,广告的本体是本质与价值的统一。本体的坚守要建立开放的认识观,在不变的广告本质中解释变化着的广告形态,而非用未触及本体的不确定认识窄化新的广告事实。彰显广告价值... 用传播的方式促进从生产到消费转换的行为皆为存在意义上的广告,广告的本体是本质与价值的统一。本体的坚守要建立开放的认识观,在不变的广告本质中解释变化着的广告形态,而非用未触及本体的不确定认识窄化新的广告事实。彰显广告价值需深耕数字广告实践,用创意提升广告的社会吸引力,建构多主体参与的沟通网络。彰显广告价值还需要在理论层面,以本体观为支点,立足于本土广告实践,重新组织数字广告研究范畴,使用大数据技术与混合研究法探究新问题,为广告学知识体系的建构提供框架与方向。 展开更多
关键词 广告 广告本质 广告价值 广告本体
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乡村振兴背景下成都乡村饮食文化资源开发研究:基于旅游体验价值
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作者 赵豫西 冉杰 +1 位作者 李倩 周媛媛 《江苏商论》 2025年第1期3-6,10,共5页
党的十九大提出实施乡村振兴战略,发展旅游业是乡村振兴的重要途径,而饮食文化资源是乡村旅游发展的核心资源之一,为促进乡村旅游的高质量发展提供了强大的动力。基于此,本文通过分析成都乡村饮食文化资源开发的现状,在此基础上提出乡... 党的十九大提出实施乡村振兴战略,发展旅游业是乡村振兴的重要途径,而饮食文化资源是乡村旅游发展的核心资源之一,为促进乡村旅游的高质量发展提供了强大的动力。基于此,本文通过分析成都乡村饮食文化资源开发的现状,在此基础上提出乡村振兴背景下乡村饮食文化资源开发对策。 展开更多
关键词 乡村振兴 饮食文化资源 体验价值
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肾病综合征病人血清lncRNA ANRIL和BDNF水平变化与血栓栓塞的相关性分析
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作者 顾玉 梁晓艳 +2 位作者 马胜辉 佟娜 阎泽君 《安徽医药》 CAS 2025年第1期141-146,共6页
目的探究肾病综合征(NS)病人血清长链非编码RNA(lncRNA)细胞周期激酶抑制因子4基因座中反义非编码RNA(ANRIL)和脑源性神经营养因子(BDNF)水平变化与血栓栓塞(TE)的相关性。方法选取2019年3月至2021年12月在承德市中心医院住院治疗的220... 目的探究肾病综合征(NS)病人血清长链非编码RNA(lncRNA)细胞周期激酶抑制因子4基因座中反义非编码RNA(ANRIL)和脑源性神经营养因子(BDNF)水平变化与血栓栓塞(TE)的相关性。方法选取2019年3月至2021年12月在承德市中心医院住院治疗的220例NS病人为研究对象,根据随访结果将其分为NS组118例和TE组102例,另外选取同期体检健康者100例为对照组。采用实时荧光定量PCR(qRT-PCR)测定研究对象血清lncRNA ANRIL水平;采用酶联免疫吸附测定(ELISA)检测研究对象血清BDNF水平;使用全自动生化分析仪检测相关生化指标;采用Pearson相关性分析血清lncRNA ANRIL、BDNF水平与生化指标相关性;采用多因素logistic回归分析NS病人发生TE的影响因素;采用受试者操作特征曲线(ROC曲线)分析血清lncRNA ANRIL、BDNF在预测NS病人发生TE中的价值。结果与对照组相比较,NS组、TE组血清lncRNA ANRIL水平显著升高(2.54±0.43比5.82±1.34、8.35±2.17),BDNF水平显著降低[(32.77±8.25)μg/L比(24.49±4.58)μg/L、(18.63±3.62)μg/L](P<0.05);与NS组相比较,TE组血清lncRNA ANRIL水平显著升高,BDNF水平显著降低(P<0.05);对照组、NS组、TE组三组的尿酸、血肌酐、乳酸脱氢酶、血尿素氮、尿蛋白水平呈逐渐升高趋势,血清白蛋白、血红蛋白水平呈逐渐降低趋势(P<0.05)。Pearson相关性分析显示,NS合并TE病人血清lncRNA ANRIL水平与尿酸、血肌酐、乳酸脱氢酶、血尿素氮、尿蛋白水平呈正相关,与血清白蛋白、血红蛋白水平呈负相关(P<0.05);NS合并TE病人血清BDNF水平与尿酸、血肌酐、乳酸脱氢酶、血尿素氮、尿蛋白水平呈负相关,与血清白蛋白、血红蛋白水平呈正相关(P<0.05)。多因素logistic回归分析显示,lncRNA ANRIL、尿蛋白和BDNF是NS病人发生TE的影响因素(P<0.05);ROC曲线结果显示,血清lncRNA ANRIL、BDNF预测NS病人发生TE的曲线下面积(AUC)分别为0.84、0.85,两者联合预测的AUC为0.92,高于lncRNA ANRIL、BDNF单独检测,特异度为83.05%,灵敏度为88.24%。结论NS伴TE病人中血清lncRNA ANRIL水平升高,BDNF水平降低,二者对NS病人发生TE具有一定的预测价值。 展开更多
关键词 肾病综合征 非编码RNA ANRIL 脑源性神经营养因子 血栓栓塞 预测价值
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从育人价值的本位出发构建西医院校中医学课程思政的探索
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作者 金涛 王华楠 +2 位作者 李宁 夏庆 邓力珲 《中国中医药现代远程教育》 2025年第2期4-7,共4页
此文围绕以育人为本位的价值理念,对西医院校中医课程思政的构建进行了探索。文章分析了目前西医院校中医课程以及中医课程思政的现状和背景,中医课程思政建设符合国家建设高水平大学、培养高质量人才的要求和维护人类健康的需求,其必... 此文围绕以育人为本位的价值理念,对西医院校中医课程思政的构建进行了探索。文章分析了目前西医院校中医课程以及中医课程思政的现状和背景,中医课程思政建设符合国家建设高水平大学、培养高质量人才的要求和维护人类健康的需求,其必要性不言而喻,并具有可行性。从教学目标和计划、教学内容的挖掘与整合、教学形式的改革与创新、教师队伍培训和教学效果评价措施五个方面具体展开,探讨了课程思政构建的内容,为实现以育人为本位的医学人才培养目标提供了思路。 展开更多
关键词 育人价值 西医院校 中医学 课程思政
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数学教育中数学实验的研究现状与展望
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作者 唐恒钧 吴冠男 《浙江师范大学学报(自然科学版)》 CAS 2025年第1期103-110,共8页
随着数学课程改革的不断深入,数学实验的价值受到了广泛重视.如何在现有研究基础上进一步推进数学教育中的数学实验研究,使之在数学教育实践中更充分地发挥教育价值,需要进行更深入的研究.为了解这一领域的研究现状,为未来研究提供线索... 随着数学课程改革的不断深入,数学实验的价值受到了广泛重视.如何在现有研究基础上进一步推进数学教育中的数学实验研究,使之在数学教育实践中更充分地发挥教育价值,需要进行更深入的研究.为了解这一领域的研究现状,为未来研究提供线索,以“中国知网”为数据库对现有研究进行梳理,厘清数学教育中数学实验的内涵和价值定位,梳理现有教学实施思路与策略.未来还需要进一步强化探究型数学实验研究,完善数学实验教学策略体系,并优化数学实验环境. 展开更多
关键词 数学实验 内涵 教育价值 教学环节 教学策略
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汉语作为方法:从早期文字记录看汉语诗学的当代价值
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作者 张晶 刘璇 《河北学刊》 北大核心 2025年第1期67-73,共7页
汉语兼具“文”与“言”的双重属性,与以“言”为主的印欧语相区别。语法与逻辑的同根同源使印欧语在理论表述中陷入了概念与经验的争执,而汉语贯通形而上与形而下的特质使汉语表述本身即构成一种方法。作为“道”之文的载体,中国早期... 汉语兼具“文”与“言”的双重属性,与以“言”为主的印欧语相区别。语法与逻辑的同根同源使印欧语在理论表述中陷入了概念与经验的争执,而汉语贯通形而上与形而下的特质使汉语表述本身即构成一种方法。作为“道”之文的载体,中国早期记录及其文法结构提供了关键信息,甲骨卜辞的体例制式为“易”类文献的结构提供了可追溯的原型,也为探索“论出于易”对汉语诗学功能的塑造提供了重要线索。其中,干支配伍的宇宙纪日为“以时系事”的话语表述提供了超线性时空结构;“正反对贞”以对言的形式表现语义的动态平衡与赋形必变的道理;“主题+阐释”的体例结构以逐层累积的文本层次为断言的疑难提供了积极的方案。汉语文法能够在表述判断的同时保持对“变”的关切,这为建构既能规范描述艺术经验又能直面人类自身处境的理论话语提供了时代价值。 展开更多
关键词 汉语 早期文字记录 文法结构 汉语诗学 当代价值
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云南地区GNSS应变率场异常识别方法及地震预测效能评估
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作者 王伶俐 洪敏 +3 位作者 牛甜 李芹 杨薪俊 喻世贤 《地震研究》 北大核心 2025年第1期49-60,共12页
利用1999-2020年云南及邻区近300个GNSS测站的观测数据解算获取的速度场为约束,采用克里金插值方法分时段估计了1999-2007年,2009-2014年,2015-2020年三期区域应变率场;通过回溯各个观测时段之后3年内M_(S)≥5.0地震事件,分析区域地壳... 利用1999-2020年云南及邻区近300个GNSS测站的观测数据解算获取的速度场为约束,采用克里金插值方法分时段估计了1999-2007年,2009-2014年,2015-2020年三期区域应变率场;通过回溯各个观测时段之后3年内M_(S)≥5.0地震事件,分析区域地壳形变特征与地震事件发生地点之间的相关性,结果表明,绝大部分地震都发生在面应变高梯度带的张压转换区和最大剪应变率沿断层方向的高值区或其边缘。基于上述应变率场异常特征,提出格网地震危险因子算法,建立地震危险区识别模型,通过估计格网最大剪应变率和面应变率风险区划因子,定量提取异常区地震危险指标,结果显示采用数值模型识别出的异常区与地震事件具有较好地对应关系;进一步采用R值评分的方式对应变率场异常区模型识别方法进行地震预测效能量化评估与分析,结果显示3期应变率场预测结果均通过R值评分检测。 展开更多
关键词 GNSS 应变率场 地震预测 R值评分 异常指标 云南地区
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从自主到自觉:高等教育研究的知识价值转向
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作者 李海龙 《高校教育管理》 北大核心 2025年第1期23-35,共13页
人文社会科学的研究旨在形成价值观念并塑造认知框架。作为国家创新实力的关键组成部分,构建自主的社会科学知识体系对于把握社会发展趋势,形成针对本土社会问题的独特解释方式至关重要。近年来我国提出要构建社会科学自主知识体系,原... 人文社会科学的研究旨在形成价值观念并塑造认知框架。作为国家创新实力的关键组成部分,构建自主的社会科学知识体系对于把握社会发展趋势,形成针对本土社会问题的独特解释方式至关重要。近年来我国提出要构建社会科学自主知识体系,原因是对知识价值的控制来自人类的掌控本能;发达国家的社会科学理论在解释我国的社会现象时可能不再适用。因此,针对我国高等教育发展的独特性,我们需要建立专门的分析框架,并形成有效的理论解释体系。自主知识体系的建立需要基于我国高等教育现代化的学理性与实践性叙事展开,所要达到的最终境界是实现理论自觉,即形成我国高等教育发展理论的自主意识。我们需要通过反思性实践,重新设定高等教育研究的问题来源。推动学术研究集中于本土问题并走向“自觉性”应该成为构建中国特色高等教育自主知识体系的价值起点。 展开更多
关键词 高等教育研究 学科 自主知识体系 价值转向 理论自觉
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