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Diagnostic efficacy of virtual organ computer-assisted analysis in measuring the volume ratio of subchorionic hematoma with serum progesterone
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作者 Lin-Ling Shen Jing Shi +2 位作者 Chang-Wei Ding Gao-Le Dai Qi Ma 《World Journal of Clinical Cases》 SCIE 2024年第17期3053-3060,共8页
BACKGROUND Subchorionic hematoma(SCH)is a common complication in early pregnancy characterized by the accumulation of blood between the uterine wall and the chorionic membrane.SCH can lead to adverse pregnancy outcome... BACKGROUND Subchorionic hematoma(SCH)is a common complication in early pregnancy characterized by the accumulation of blood between the uterine wall and the chorionic membrane.SCH can lead to adverse pregnancy outcomes such as miscarriage,preterm birth,and other complications.Early detection and accurate assessment of SCH are crucial for appropriate management and improved pregnancy outcomes.AIM To evaluate the diagnostic efficacy of virtual organ computer-assisted analysis(VOCAL)in measuring the volume ratio of SCH to gestational sac(GS)combined with serum progesterone on early pregnancy outcomes in patients with SCH.METHODS A total of 153 patients with SCH in their first-trimester pregnancies between 6 and 11 wk were enrolled.All patients were followed up until a gestational age of 20 wk.The parameters of transvaginal two-dimensional ultrasound,including the circumference of SCH(Cs),surface area of SCH(Ss),circumference of GS(Cg),and surface area of GS(Sg),and the parameters of VOCAL with transvaginal three-dimensional ultrasound,including the three-dimensional volume of SCH(3DVs)and GS(3DVg),were recorded.The size of the SCH and its ratio to the GS size(Cs/Cg,Ss/Sg,3DVs/3DVg)were recorded and compared.RESULTS Compared with those in the normal pregnancy group,the adverse pregnancy group had higher Cs/Cg,Ss/Sg,and 3DVs/3DVg ratios(P<0.05).When 3DVs/3DVg was 0.220,the highest predictive performance predicted adverse pregnancy outcomes,resulting in an AUC of 0.767,and the sensitivity,specificity were 70.2%,75%respectively.VOCAL measuring 3DVs/3DVg combined with serum progesterone gave a diagnostic AUC of 0.824 for early pregnancy outcome in SCH patients,with a high sensitivity of 82.1%and a specificity of 72.1%,which showed a significant difference between AUC.CONCLUSION VOCAL-measured 3DVs/3DVg effectively quantifies the severity of SCH,while combined serum progesterone better predicts adverse pregnancy outcomes. 展开更多
关键词 Subchorionic hematoma Virtual organ computer-assisted analysis Gestational sac Serum progesterone Ultrasound parameters Adverse pregnancy outcomes
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Privacy Protection in COVID Data Tracking: Textual Analysis of the Literature
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作者 Antonella Massari Viviana D’Addosio +1 位作者 Vittoria Claudia De Nicolò Samuela L’Abbate 《Applied Mathematics》 2024年第3期235-255,共21页
The literary review presented in the following paper aims to analyze the tracking tools used in different countries during the period of the COVID-19 pandemic. Tracking apps that have been adopted in many countries to... The literary review presented in the following paper aims to analyze the tracking tools used in different countries during the period of the COVID-19 pandemic. Tracking apps that have been adopted in many countries to collect data in a homogeneous and immediate way have made up for the difficulty of collecting data and standardizing evaluation criteria. However, the regulation on the protection of personal data in the health sector and the adoption of the new General Data Protection Regulation in European countries has placed a strong limitation on their use. This has not been the case in non-European countries, where monitoring methodologies have become widespread. The textual analysis presented is based on co-occurrence and multiple correspondence analysis to show the contact tracing methods adopted in different countries in the pandemic period by relating them to the issue of privacy. It also analyzed the possibility of applying Blockchain technology in applications for tracking contagions from COVID-19 and managing health data to provide a high level of security and transparency, including through anonymization, thus increasing user trust in using the apps. 展开更多
关键词 TRACKING PRIVACY Blockchain textual analysis
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A comparison of conventional and computer-assisted semen analysis.(CRISMAS software) using samples from 166 young Danish men 被引量:3
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作者 Anne Vested Cecilia H Ramlau-Hansen +3 位作者 Jens P Bonde Ane M Thulstrup Susanne L Kristensen Gunnar Toft 《Asian Journal of Andrology》 SCIE CAS CSCD 2011年第3期453-458,513,共7页
The aim of the present study was to compare assessments of sperm concentration and sperm motility analysed by conventional semen analysis with those obtained by computer-assisted semen analysis (CASA) (Copenhagen R... The aim of the present study was to compare assessments of sperm concentration and sperm motility analysed by conventional semen analysis with those obtained by computer-assisted semen analysis (CASA) (Copenhagen Rigshospitalet Image House Sperm Motility Analysis System (CRISMAS) 4.6 software) using semen samples from 166 young Danish men. The CRISMAS software identifies sperm concentration and classifies spermatozoa into three motility categories. To enable comparison of the two methods, the four motility stages obtained by conventional semen analysis were, based on their velocity classifications, divided into three stages, comparable to the three CRISMAS motility categories: rapidly progressive (A), slowly progressive (B) and non-progressive (C+ D). Differences between the two methods were large for all investigated parameters (P〈0.001). CRISMAS overestimated sperm concentration and the proportion of rapidly progressive spermatozoa and, consequently, underestimated the percentages of slowly progressive and non-progressive spermatozoa, compared to the conventional method. To investigate whether results drifted according to time of semen analysis, results were pooled into quarters according to date of semen analysis. CRISMAS motility results appeared more stable over time compared to the conventional analysis; however, neither method showed any trends. Apparently, CRISMAS CASA results and results from the conventional method were not comparable with respect to sperm concentration and motility analysis. This needs to be accounted for in clinics using this software and in studies of determinants of these semen characteristics. 展开更多
关键词 computer-assisted semen analysis REPRODUCTION semen analysis sperm concentration sperm motility
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A Computer-Assisted Corpus Analysis (CACA) of Professional Discourse
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作者 K. Manvender H-Z Yasmin Sarimah Shamsudin 《Sino-US English Teaching》 2012年第6期1236-1245,共10页
This paper presents CACA (computer-assisted corpus analysis) conducted by using a compiled representative corpus. As a descriptive study, it explores the written communicative events produced by engineers in the pet... This paper presents CACA (computer-assisted corpus analysis) conducted by using a compiled representative corpus. As a descriptive study, it explores the written communicative events produced by engineers in the petroleum industry in Malaysia. Language use is commonly analyzed for competence and performance. Competence is best described as the internalized linguistic knowledge as acquired by the learners while the notion of"performance" is best defined as the external evidence of language competence. Therefore, the core of this paper is reflecting actual language use of the language learners in Malaysia. The data are drawn from a sample corpus compiled from the written communicative events in three companies of the petroleum industry in Malaysia. The methodology applied is fundamental as it tends to investigate the linguistic constitutions in the genre-specific corpus of the professional discourse produced. Computer-based syntactical studies are limited as they require hard work and long hours in order to key-in the data and then there is the complex analytic method of describing the findings. In contrast, this paper will demonstrate an uncomplicated method of analysis and also encourage the use of existing POS (part-of speech) tagging software available online. 展开更多
关键词 profesional discourse written communicative events move analysis CACA computer-assisted corpusanalysis petroleum industry
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Netnews Discourse Analysis:A Textual Perspective
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作者 黄斌 毛梅娜 《海外英语》 2014年第20期246-247,共2页
With the advent of Internet age,the audience can enjoy more"autonomy"from the internet than from other media.In consequence,it is said that people can keep"clear-minded"before Netnews,and ideology ... With the advent of Internet age,the audience can enjoy more"autonomy"from the internet than from other media.In consequence,it is said that people can keep"clear-minded"before Netnews,and ideology has been weakened and will even disappear in Netnews. However,from a textual perspective,ideology has been strengthened rather than weakened in Netnews. 展开更多
关键词 CRITICAL DISCOURSE analysis IDEOLOGY Netnews textu
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Multimodal sentiment analysis for social media contents during public emergencies
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作者 Tao Fan Hao Wang +2 位作者 Peng Wu Chen Ling Milad Taleby Ahvanooey 《Journal of Data and Information Science》 CSCD 2023年第3期61-87,共27页
Purpose:Nowadays,public opinions during public emergencies involve not only textual contents but also contain images.However,the existing works mainly focus on textual contents and they do not provide a satisfactory a... Purpose:Nowadays,public opinions during public emergencies involve not only textual contents but also contain images.However,the existing works mainly focus on textual contents and they do not provide a satisfactory accuracy of sentiment analysis,lacking the combination of multimodal contents.In this paper,we propose to combine texts and images generated in the social media to perform sentiment analysis.Design/methodology/approach:We propose a Deep Multimodal Fusion Model(DMFM),which combines textual and visual sentiment analysis.We first train word2vec model on a large-scale public emergency corpus to obtain semantic-rich word vectors as the input of textual sentiment analysis.BiLSTM is employed to generate encoded textual embeddings.To fully excavate visual information from images,a modified pretrained VGG16-based sentiment analysis network is used with the best-performed fine-tuning strategy.A multimodal fusion method is implemented to fuse textual and visual embeddings completely,producing predicted labels.Findings:We performed extensive experiments on Weibo and Twitter public emergency datasets,to evaluate the performance of our proposed model.Experimental results demonstrate that the DMFM provides higher accuracy compared with baseline models.The introduction of images can boost the performance of sentiment analysis during public emergencies.Research limitations:In the future,we will test our model in a wider dataset.We will also consider a better way to learn the multimodal fusion information.Practical implications:We build an efficient multimodal sentiment analysis model for the social media contents during public emergencies.Originality/value:We consider the images posted by online users during public emergencies on social platforms.The proposed method can present a novel scope for sentiment analysis during public emergencies and provide the decision support for the government when formulating policies in public emergencies. 展开更多
关键词 Public emergency Multimodal sentiment analysis Social platform textual sentiment analysis Visual sentiment analysis
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Tone of language,financial disclosure,and earnings management:a textual analysis of form 20-F 被引量:1
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作者 Shuangyan Li Guangrui Wang Yongli Luo 《Financial Innovation》 2022年第1期1360-1383,共24页
This study investigates the relationship between the tone of financial disclosures and managers’earnings management behavior using Form 20-F filings of Chinese firms listed in the U.S.during 2002–2014.The results sh... This study investigates the relationship between the tone of financial disclosures and managers’earnings management behavior using Form 20-F filings of Chinese firms listed in the U.S.during 2002–2014.The results show that the proportion of positive,uncertain,or modal words used in financial disclosures is positively related to corporate earnings management,implying that managers attempt to conceal earnings management behavior by manipulating the tone of their financial reports.In addition,robustness tests are conducted using an alternative proxy for earnings management that considers the effects of the financial crisis and separately examines the information and non-information technology industries.The results suggest that the tone used in financial disclosures has informative value,and textual analysis can be an effective tool for identifying earnings management. 展开更多
关键词 TONE Earnings management textual analysis Financial statement
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Gettysburg Address: Textual Analysis and Teaching Design
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作者 周开元 许欣 《海外英语》 2013年第12X期113-114,119,共3页
Grammar instruction takes an important role in language teaching in EFL context, and contextualized analysis of authentic texts can help learners better understand Larsen-Freeman's (2003) three dimensions—form, m... Grammar instruction takes an important role in language teaching in EFL context, and contextualized analysis of authentic texts can help learners better understand Larsen-Freeman's (2003) three dimensions—form, meaning and use of related grammatical features. This article will analyze Abraham Lincoln's Gettysburg Address (hereafter GA for short) in terms of tense/aspect, modality and cohesion, and briefly discuss how it could be used in teaching. 展开更多
关键词 textual analysis TEACHING CONTEXT
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Beyond Sorrow,Being Eternal——The Textual Analysis of Yeats' When You Are Old
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作者 宋冬梅 《海外英语》 2018年第19期201-202,共2页
When You Are Old is a famous poem written by Yeats to his infatuation Maud Gonne. The paper analyzes the poem in the following aspects: the conflicting elements, rhythm, the opposition and unity of form and content in... When You Are Old is a famous poem written by Yeats to his infatuation Maud Gonne. The paper analyzes the poem in the following aspects: the conflicting elements, rhythm, the opposition and unity of form and content in the text to reveal the theme thoroughly: to be beyond sorrow, then to be eternal in love and life. 展开更多
关键词 Yeats and Maud Gonne WHEN YOU ARE OLD the textual analysis
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A Discourse Analysis from the Perspective of Textual Metafuction in Functional Linguistics
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作者 艾鑫 《海外英语》 2015年第2期83-84,共2页
This essay excerpts an academic lecture on psychology from the listening part of TOEFL. Through respective analyses on the facets of thematic progression patterns and lexical sense relation, some main findings can be ... This essay excerpts an academic lecture on psychology from the listening part of TOEFL. Through respective analyses on the facets of thematic progression patterns and lexical sense relation, some main findings can be drawn. First, his text follows a typical Situation-Problem-Solution-Evaluation pattern. Also, this text applies various lexical sense relations and thematic progression patterns. Eventually, all make each paragraph and the whole text coherent. 展开更多
关键词 functional LINGUISTICS textual metafucion THEMATIC progression patterns LEXICAL sense relation TOEFL listening dis-course analysis
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Reading Notes on Discourse Analysis
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作者 吴洁 《科技视界》 2015年第2期212-213,共2页
语篇分析研究的是使用中的语言。其理论的重要前提是语言只能在语境中才有意义,话语的理解必须依赖语言及言语之外的提示。语篇分析的研究内容主要是文章及话语中的语意连贯。语义连贯是个十分复杂的问题,有时语篇的连贯取决于说话的前... 语篇分析研究的是使用中的语言。其理论的重要前提是语言只能在语境中才有意义,话语的理解必须依赖语言及言语之外的提示。语篇分析的研究内容主要是文章及话语中的语意连贯。语义连贯是个十分复杂的问题,有时语篇的连贯取决于说话的前提和发话者与受话者双方的共有知识。前者亦被称为"语境"。语篇与语境相互依存、相辅相成。语篇产生于语境,也是语境组成的部分。语境是成功阅读的关键,也是英语教学的难重点。作者通过对《语篇分析》一书的阅读,对上述元素和问题进行了总结和探究,以期将利用相关成果应用于英语阅读教学。 展开更多
关键词 语篇分析 形连 意连 指向性
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A Discourse Analysis on Problem-Solution Pattern of Cosmetic Advertisements
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作者 苏晓俐 《海外英语》 2015年第4期111-112,127,共3页
Based on Winter's and Hoey's theories on discourse analysis, the Problem-Solution Pattern in cosmetic advertising from the perspective of text patterns and lexical signaling is discussed by analyzing thirty pi... Based on Winter's and Hoey's theories on discourse analysis, the Problem-Solution Pattern in cosmetic advertising from the perspective of text patterns and lexical signaling is discussed by analyzing thirty pieces of advertisements on cosmetic products. Findings suggest text patterns of cosmetic advertisements display in various forms and the components of Problem-Solution Pattern are signaled by lexical items as emotive vocabulary with positive or negative meanings and repetition of the brand names. Possible implications are offered for cosmetic advertising industry in writing effective advertisements both in English and Chinese. 展开更多
关键词 problem-Solution PATTERN discourse analysis COSMETIC ADVERTISEMENT textual PATTERN lexical signaling
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Transitivity System and Power Relationship-Analysis of William Faulkner' s A Rose for Emily
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作者 刘梦迪 《海外英语》 2018年第1期224-226,234,共4页
This paper explores how transitivity system functions in the novel A Rose for Emily, especially how it builds up and reflects the suppression on Emily by Emily's father, who represents the patriarchal value system... This paper explores how transitivity system functions in the novel A Rose for Emily, especially how it builds up and reflects the suppression on Emily by Emily's father, who represents the patriarchal value system and by the citizens who represents the southern traditional value system. This paper also elaborates how Emily appeared to be powerless and was dominated by the two groups of power, and how her humanity and emotions were suppressed in the conflict of the two categories of power. 展开更多
关键词 transitivity system power relationship textual analysis
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Stylistic Analysis of the Advertisement of Apple Watch Series 4
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作者 Yu Yifei 《新东方英语(中英文版)》 2019年第6期102-103,共2页
Advertising is widely recognized as a powerful communication force and an important marketing tool that helps sell goods and services.This paper gives an overall analysis of the advertising language on the level of gr... Advertising is widely recognized as a powerful communication force and an important marketing tool that helps sell goods and services.This paper gives an overall analysis of the advertising language on the level of graphology,lexis and syntax in the case of an online advertisement of Apple Watch Series 4. 展开更多
关键词 STYLISTICS English ADVERTISING textual analysis
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绿色信贷指引对重污染企业环境信息披露的影响
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作者 徐维东 刘波 黄文萱 《华南理工大学学报(社会科学版)》 2024年第1期42-62,共21页
在可持续发展战略背景下,国家和民众对环保问题的关注程度日益提高。国家从多方面出台环保政策规制企业行为,绿色信贷便是从银行金融业出发,通过限制金融机构对企业的放贷行为,促使企业经营更低碳环保。基于我国A股上市公司数据,使用双... 在可持续发展战略背景下,国家和民众对环保问题的关注程度日益提高。国家从多方面出台环保政策规制企业行为,绿色信贷便是从银行金融业出发,通过限制金融机构对企业的放贷行为,促使企业经营更低碳环保。基于我国A股上市公司数据,使用双重差分法探究2012年颁布的《绿色信贷指引》对重污染企业环境信息披露的影响,使用词典法和文本分析法对企业年报中“管理层讨论与分析”模块环境信息叙述性披露进行了分析。研究结果显示,绿色信贷政策的颁布确实对重污染企业的环境信息披露有积极影响。具体表现在企业年报的“管理层讨论与分析”模块中有关环保的叙述性披露更多,更具体且更具有可读性;这一结论经过内生性检验、安慰剂检验后依然成立。还探究了该影响的中介效应,发现绿色信贷政策既能直接影响重污染企业环境信息披露,也能通过提高企业融资约束以及环境代理成本使企业加强环境信息披露。此外,企业的所有权性质会对该过程起到调节作用,国有重污染企业会披露更多、更具体的环境信息;股权集中度高的公司倾向披露更少的环境信息,但披露的可读性更高。最后基于以上结论,提出相应的对策建议。 展开更多
关键词 绿色信贷政策 环境信息披露 管理层讨论与分析 文本分析 重污染企业
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基于文本分析法的城乡融合政策变迁研究——以重庆市为例
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作者 王作军 孙永琪 《西南大学学报(社会科学版)》 北大核心 2024年第4期155-169,共15页
城乡融合发展是打破城乡二元体制、缩小城乡发展差距的必由之路,探究城乡融合政策变迁对于识别城乡融合发展趋势具有重要意义。在厘定城乡融合发展阶段基础上,建立“政策阶段—政策目标—政策工具”三维框架,以重庆市为例,对其2002—202... 城乡融合发展是打破城乡二元体制、缩小城乡发展差距的必由之路,探究城乡融合政策变迁对于识别城乡融合发展趋势具有重要意义。在厘定城乡融合发展阶段基础上,建立“政策阶段—政策目标—政策工具”三维框架,以重庆市为例,对其2002—2022年的163份城乡融合政策进行文本编码和量化分析,从政策目标、政策工具两方面探究政策变迁趋势。研究发现:作为实现城乡融合发展的必要支撑,城乡融合政策根据政策环境变化而动态演进、创新发展,其变迁趋势为要素互补高级化、参与主体多元化、产业形式多样化、改革创新精准化。据此,从提升城乡要素互补水平、营造社会参与良好环境、推进农村产业融合发展、加大改革创新力度四个方面提出管理启示,以期为城乡融合发展提供参考与借鉴。 展开更多
关键词 城乡融合 城乡关系 政策变迁 文本分析 政策工具 政策目标 乡村振兴 要素互补
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儒家文化词典的构建及运用——基于家族企业的实证检验
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作者 陈家田 刘燕璜 《山东工商学院学报》 2024年第3期103-115,共13页
通过科学的构建体现儒家文化的词典及指标,进一步研究儒家文化这只无形的手对家族企业行为的影响。基于此,尝试通过自然语言处理技术,构建能够测量企业儒家文化的词典及指标,并提出儒家文化三环模型。研究发现:(1)儒家文化内涵以伦理观... 通过科学的构建体现儒家文化的词典及指标,进一步研究儒家文化这只无形的手对家族企业行为的影响。基于此,尝试通过自然语言处理技术,构建能够测量企业儒家文化的词典及指标,并提出儒家文化三环模型。研究发现:(1)儒家文化内涵以伦理观为核心,随着个体关系的延伸而动态发展,边界模糊且呈差序格局,大致分为三个维度。(2)儒家文化影响家族企业的慈善捐赠行为,即受儒家文化影响程度越深,其慈善捐赠越多。(3)高管海外背景对儒家文化与慈善捐赠的关系起正向调节作用。在进一步分析中发现,企业规模越大的家族企业,儒家文化对慈善捐赠的积极影响越明显。 展开更多
关键词 文本分析 儒家文化 家族企业 慈善捐赠 高管海外背景
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初中数学教科书非文本元素特点及功能研究——以浙教版为例 被引量:2
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作者 李玲珠 陈秋雨 《数学教育学报》 北大核心 2024年第1期8-15,43,共9页
非文本元素是数学教科书不可或缺的组成部分.但有研究者发现,部分NTEs存在偏装饰、功能单一、与数学联系不紧密的现象.以浙教版初中数学教材为例,通过比较NTEs的类别与功能分析其合理性.研究发现,浙教版八年级的NTEs数量最多,九年级平... 非文本元素是数学教科书不可或缺的组成部分.但有研究者发现,部分NTEs存在偏装饰、功能单一、与数学联系不紧密的现象.以浙教版初中数学教材为例,通过比较NTEs的类别与功能分析其合理性.研究发现,浙教版八年级的NTEs数量最多,九年级平均密度最大.类别与功能上,NTEs在数学类的数量最多,以解释性功能为主.此外,生活类的NTEs以装饰性功能为主,数学史类NTEs以装饰性和解释性功能为主.未来,NTEs可在与数学内容的实质性联系以及功能的丰富性上作进一步考虑. 展开更多
关键词 浙教版 非文本元素 类别 功能 教材分析
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国家中医药综合改革示范区“十四五”中医药发展规划政策文本分析
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作者 谭浩 王军永 +2 位作者 张嘉颖 杨荣 王力 《中国医疗管理科学》 2024年第1期13-19,20,共8页
目的剖析我国7个国家中医药综合改革示范区的“十四五”中医药发展规划政策的特征及政策工具使用情况,探讨政策缺陷,并提出优化策略,为推进国家中医药综合改革示范区建设提供参考。方法基于7省份“十四五”中医药发展规划,构建“政策工... 目的剖析我国7个国家中医药综合改革示范区的“十四五”中医药发展规划政策的特征及政策工具使用情况,探讨政策缺陷,并提出优化策略,为推进国家中医药综合改革示范区建设提供参考。方法基于7省份“十四五”中医药发展规划,构建“政策工具—政策要素—政策清晰度”三维分析框架,进行多维度量化分析。结果7份中医药政策共提取564条编码,政策工具中命令规制型、激励型、能力建设型、系统变革型、象征劝诫型工具分别占比13.3%、7.1%、53.0%、22.9%、3.7%,政策要素中服务体系提及频率最高,占比33.9%,政策清晰度等级为“清晰”的编码条目占比9.4%。结论中医药政策激励机制不够完善,宣传力度不足,政策要素内部缺乏联动,政策工具与政策要素契合度不高,政策清晰度有待提升。建议丰富激励型与象征劝诫型政策工具的使用,建立中医药发展要素联动机制,优化政策工具内部结构,提升政策发展目标清晰度。 展开更多
关键词 中医药 政策工具 政策要素 政策清晰度 文本分析
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产品相似性、目标公司选择与并购创新绩效
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作者 王倩 任曙明 张勤勤 《北京理工大学学报(社会科学版)》 北大核心 2024年第1期208-222,共15页
通过并购整合外部资源、提升创新绩效是企业获取竞争优势的重要手段。揭示了产品相似性在并购决策、整合阶段的作用,指出产品相似性一方面缓解了主并双方的信息不对称问题,有利于主并公司挑选合适的目标公司,另一方面促进了并购后的深... 通过并购整合外部资源、提升创新绩效是企业获取竞争优势的重要手段。揭示了产品相似性在并购决策、整合阶段的作用,指出产品相似性一方面缓解了主并双方的信息不对称问题,有利于主并公司挑选合适的目标公司,另一方面促进了并购后的深度整合,进而提升了主并公司的创新绩效。使用2009—2019年中国A股制造业上市公司样本,根据文本分析方法测算出主并双方的产品相似性数值,采用条件Logit模型和负二项回归模型进行了实证分析。回归结果显示:(1)与主并公司存在产品相似性关系的企业成为目标公司的可能性更大;(2)并购后,产品相似性会提高主并方的创新绩效;(3)产品相似性主要通过“知识吸收效应”“融资约束平滑效应”和“市场压力对冲效应”三个渠道提高了主并方的创新绩效。 展开更多
关键词 产品相似性 目标公司选择 并购 创新绩效 文本分析
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