1,721,509 research outputs found
NERD: A Framework for Unifying Named Entity Recognition and Disambiguation Extraction Tools
No full textNamed Entity Extraction is a mature task in the NLP field that has yielded numerous services gaining popularity in the Semantic Web community for extracting knowledge from web documents. These services
are generally organized as pipelines, using dedicated APIs and different taxonomy for extracting, classifying and disambiguating named entities. Integrating one of these services in a particular application requires
to implement an appropriate driver. Furthermore, the results of these services are not comparable due to different formats. This prevents the comparison of the performance of these services as well as their pos-
sible combination. We address this problem by proposing NERD, a framework which unifies 10 popular named entity extractors available on the web, and the NERD ontology which provides a rich set of axioms aligning the taxonomies of these tools
Four Dimensional Fetal Echocardiography [video]
No full textThe examination of the fetal heart is part of the comprehensive fetal scan, but this examination is still considered a challenge even for experienced sonographers. Over the years, the number of ultrasound techniques used in fetal cardiology impressively increased and no other fetal organ is examined with as many modalities as the fetal heart including high resolution two dimensional (2D) imaging, M-mode examination, spectral, color, power, high-definition digital Doppler, B flow as well as tissue Doppler. It is, however, common knowledge that despite the availability of all these technologies, screening programs, especially when limited to the study of the “four chamber view”, have shown disappointing low detection rates for congenital heart disease (CHD). Although the identification of CHD can be improved by routinely visualizing the outflow tracts, their diagnosis is greatly affected by the skill of the operator as well as his ability to interpret the findings.
Very recently, three- and four- dimensional (3D and 4D) technologies have been introduced in fetal cardiology and have revolutionized the way in which it is possible to study the heart. 4D ultrasonography may reduce the operator dependency of CHD diagnosis and adds the possibility to obtain offline virtual planes in cardiac examinations, views of the fetal heart difficult or impossible to obtain with conventional 2D ultrasound.
This new fetal cardiology ebook, we believe, will be of great value for all practicing clinicians wanting to start the study of the fetal heart with 4D ultrasonography. We have chosen a panel of contributors that are both leaders in this field and can represent the differences in practice between Europe and United States. This is a comprehensive guide intended for anyone interested in fetal heart scanning performing both routine screening ultrasonographic examinations and targeted heart scans. It aims to assist the reader with the following questions: how can I use this technology to acquire cardiac volumes?; how do I handle cardiac volume data sets after acquisition?; how can I improve diagnosis and definition of CHD? It is our hope that this book will provide a bridge between scientists using and testing new technologies for research purposes and clinicians wishing to improve their daily practice
Le traiettorie plurali del corso di vita dei calciatori: note di campo da un’indagine qualitativa su giovani atleti
Full text linkBeing professionally involved in sport could shape on individual’s habits, character, disposition, other than on projects, opportunities and visions. Starting from this, our research focused on how individuals face this pressure, which mostly engage them during the early adolescence. We selected four emblematic cases that could gave us testimony of being involved professionally in football. The research was conducted with a qualitative approach. The empirical material was constructed through direct observation and interviews. As results, we obtained: extensive confirmations of the difficulties experienced by the professionals; the relevance of emotional and socialization aspects and needs; forms of expectations for the future, across efforts of professional conversion, and related obstacles
Intrauterine growth restriction: diagnosis and management. A review
No full textIntrauterine growth restriction (IUGR) is the failure to achieve the genetically predetermined growth potential and may be caused by maternal, fetal, placental, and external factors. IUGR is associated not only with a marked increased risk in perinatal mortality and morbidity but also with long-term outcome risks. IUGR is clinically suspected when ultrasonographic estimates of fetal size, simmetry or weight result abnormal. Exclusion of structural and/or chromosomal anomalies and Doppler studies of maternal and fetal circulations is the most effective method to differentiate IUGR fetuses secondary to placental dysfunction from those secondary to aneuploidy, genetic syndromes, and intrauterine infections. This review summarizes the current knowledge about fetal hemodynamics in IUGR pregnancies and its relationship with the severity of the disease. A better understanding of fetal hemodynamic changes occurring in IUGR will likely lead to targeted monitoring intervals in such fetuses leading to an appropriate timing of delivery only when fetal risks exceed neonatal risks
NERD: A framework for unifying named entity recognition and disambiguation web extraction tools
No full text
- …
