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
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
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
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
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
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
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
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
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
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
In this study,we take a machine learning-based approach to measure institutional investor attention to corporate social responsibility(CSR)issues when communicating with firms during site visits.We find that instituti...In this study,we take a machine learning-based approach to measure institutional investor attention to corporate social responsibility(CSR)issues when communicating with firms during site visits.We find that institutional investors can effectively enhance CSR performance through CSR-related communication.This effect remains robust to various checks and is more pronounced for non-state-owned enterprises and firms with lower levels of institutional ownership and in periods following the issuance of Green Investment Guidelines.We also identify information asymmetry and financing constraints as the two mechanisms underlying this effect.Overall,our findings highlight the importance of private interactions between management and institutional investors in promoting CSR.展开更多
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
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
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
文摘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.
文摘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.
文摘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.
文摘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.
文摘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.
基金This paper is supported by the National Natural Science Foundation of China under contract No.71774084,72274096the National Social Science Fund of China under contract No.16ZDA224,17ZDA291.
文摘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.
基金supported by the National Social Science Foundation of China(Grant No.17BJY019).
文摘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.
文摘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.
文摘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.
文摘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.
基金supported by the Major Program of National Fund of Philosophy and Social Science of China(No.19ZDA105).
文摘In this study,we take a machine learning-based approach to measure institutional investor attention to corporate social responsibility(CSR)issues when communicating with firms during site visits.We find that institutional investors can effectively enhance CSR performance through CSR-related communication.This effect remains robust to various checks and is more pronounced for non-state-owned enterprises and firms with lower levels of institutional ownership and in periods following the issuance of Green Investment Guidelines.We also identify information asymmetry and financing constraints as the two mechanisms underlying this effect.Overall,our findings highlight the importance of private interactions between management and institutional investors in promoting CSR.
文摘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.
文摘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.
文摘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.