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Search Results: 1 - 10 of 3181 matches for " Monica Monachini "
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Unifying Lexicons in view of a Phonological and Morphological Lexical DB
Federico Calzolari,Michele Mammini,Monica Monachini
Computer Science , 2006,
Abstract: The present work falls in the line of activities promoted by the European Languguage Resource Association (ELRA) Production Committee (PCom) and raises issues in methods, procedures and tools for the reusability, creation, and management of Language Resources. A two-fold purpose lies behind this experiment. The first aim is to investigate the feasibility, define methods and procedures for combining two Italian lexical resources that have incompatible formats and complementary information into a Unified Lexicon (UL). The adopted strategy and the procedures appointed are described together with the driving criterion of the merging task, where a balance between human and computational efforts is pursued. The coverage of the UL has been maximized, by making use of simple and fast matching procedures. The second aim is to exploit this newly obtained resource for implementing the phonological and morphological layers of the CLIPS lexical database. Implementing these new layers and linking them with the already exisitng syntactic and semantic layers is not a trivial task. The constraints imposed by the model, the impact at the architectural level and the solution adopted in order to make the whole database `speak' efficiently are presented. Advantages vs. disadvantages are discussed.
Qual o valor do Dímero D no diagnóstico do tromboembolismo pulmonar?
Revista da Associa??o Médica Brasileira , 2002,
Next Generation Language Resources using GRID
Federico Calzolari,Eva Sassolini,Manuela Sassi,Sebastiana Cucurullo,Eugenio Picchi,Francesca Bertagna,Alessandro Enea,Monica Monachini,Claudia Soria,Nicoletta Calzolari
Computer Science , 2006,
Abstract: This paper presents a case study concerning the challenges and requirements posed by next generation language resources, realized as an overall model of open, distributed and collaborative language infrastructure. If a sort of "new paradigm" is required, we think that the emerging and still evolving technology connected to Grid computing is a very interesting and suitable one for a concrete realization of this vision. Given the current limitations of Grid computing, it is very important to test the new environment on basic language analysis tools, in order to get the feeling of what are the potentialities and possible limitations connected to its use in NLP. For this reason, we have done some experiments on a module of Linguistic Miner, i.e. the extraction of linguistic patterns from restricted domain corpora.
The BioLexicon: a large-scale terminological resource for biomedical text mining
Paul Thompson, John McNaught, Simonetta Montemagni, Nicoletta Calzolari, Riccardo del Gratta, Vivian Lee, Simone Marchi, Monica Monachini, Piotr Pezik, Valeria Quochi, CJ Rupp, Yutaka Sasaki, Giulia Venturi, Dietrich Rebholz-Schuhmann, Sophia Ananiadou
BMC Bioinformatics , 2011, DOI: 10.1186/1471-2105-12-397
Abstract: This article provides an overview of the design, construction and evaluation of a large-scale lexical and conceptual resource for the biomedical domain, the BioLexicon. The resource can be exploited by text mining tools at several levels, e.g., part-of-speech tagging, recognition of biomedical entities, and the extraction of events in which they are involved. As such, the BioLexicon must account for real usage of words in biomedical texts. In particular, the BioLexicon gathers together different types of terms from several existing data resources into a single, unified repository, and augments them with new term variants automatically extracted from biomedical literature. Extraction of events is facilitated through the inclusion of biologically pertinent verbs (around which events are typically organized) together with information about typical patterns of grammatical and semantic behaviour, which are acquired from domain-specific texts. In order to foster interoperability, the BioLexicon is modelled using the Lexical Markup Framework, an ISO standard.The BioLexicon contains over 2.2 M lexical entries and over 1.8 M terminological variants, as well as over 3.3 M semantic relations, including over 2 M synonymy relations. Its exploitation can benefit both application developers and users. We demonstrate some such benefits by describing integration of the resource into a number of different tools, and evaluating improvements in performance that this can bring.Automatic literature analysis and text mining has developed into a discipline of bioinformatics research. As the need for biomedical text mining systems grows [1-3], the requirement for domain-specific lexical resources [4] that can aid systems in accurately identifying and extracting knowledge embedded within texts is becoming stronger.The identification of knowledge includes, but is not limited to, the recognition of concepts. Rather, knowledge consists of relationships that hold between these concepts. Such rel
Correspondence Analysis on a Space-Time Data Set for Multiple Environmental Variables  [PDF]
Palma Monica
International Journal of Geosciences (IJG) , 2015, DOI: 10.4236/ijg.2015.610090
Abstract: Applications of the multivariate technique called correspondence analysis for environmental studies are relatively new and are limited to spatial multivariate data set. In this paper, a procedure of applying correspondence analysis to a large space-time data set for multiple environmental variables is shown. In particular, nitrogen dioxide and carbon monoxide hourly concentrations measured during January 1999 at several monitored stations in a district of Northern Italy are analyzed. The procedure consists in transforming the continuous variables into categorical ones by the means of appropriate indicator variables, generating special contingency tables and applying correspondence analysis. The use of this classical multivariate technique allows the identification of important relationships among pollution levels and monitoring stations and/or relationships among pollution levels and observation times.
Demographic characteristics of the population undergoing cine coronary angiography at the Instituto do Cora o of the Medical School of USP from 1986 to 1995
Caramelli Bruno,Fornari Luciana Savoy,Monachini Maristela,Ballas Dália
Arquivos Brasileiros de Cardiologia , 2003,
Abstract: OBJECTIVE: To obtain information about the profile and behavior of a population with ischemic heart disease undergoing cine coronary angiography and to determine disease severity. METHODS: Retrospective study assessing patients hospitalized at InCor from 1986 to 1995, in which the variables age, sex, and number of major coronary arteries with obstruction degree > 40% were analyzed. RESULTS: We studied 18,221 patients and observed a significant increase in the number of females (22.8% to 25.2%, P=0.001) and an increase in age (57.1±29.3 to 60.4±10.7 years, P=0.0001). A significant increase in the incidence of multivessel disease was observed, which was more frequent among males (69.2% and 64.5%) and among the older patients (59.8±9.8 and 56.8±10.7 years, P=0.0001). A reduction in the incidence of single-vessel disease was also observed (66.2% vs 69.2% and 33.8% vs 30.5%, respectively, P<0.0001). CONCLUSION: A change in the profile of the population studied was observed as follows: patients undergoing cine coronary angiography at InCor were older, had a greater number of impaired major coronary arteries, and the number of females affected increased, leading to indices suggestive of a poorer prognosis.
Altera es eletrocardiográficas e sua rela o com os fatores de risco para doen a isquêmica do cora o em popula o da área metropolitana de S o Paulo
Revista da Associa??o Médica Brasileira , 2002,
Abstract: OBJETIVO: A doen a isquêmica do cora o apresenta altas taxas de mortalidade e é a mais prevalente entre as doen as cardiovasculares. é uma doen a multifatorial, cuja preven o depende do controle dos fatores de risco. O eletrocardiograma de repouso pode ser utilizado para detectar manifesta es da doen a isquêmica do cora o quando o indivíduo ainda é assintomático. O objetivo do estudo foi o de analisar a rela o entre as anormalidades eletrocardiográficas e os fatores de risco para doen a isquêmica do cora o em uma popula o adulta residente na área metropolitana de S o Paulo. MéTODOS: Realizou-se um estudo transversal com popula o do município de Cotia (SP). A amostra constou de 1067 indivíduos com idade acima de 20 anos, de ambos os sexos. Os dados foram obtidos por meio de entrevista com utiliza o de um questionário padronizado. As variáveis estudadas foram: sexo, idade, tabagismo, atividade física, índice de massa corpórea, rela o cintura/quadril, press o arterial, diabetes melito, dislipidemia (colesterol total, LDL-colesterol, HDL-colesterol e triglicérides) e altera es eletrocardiográficas. As altera es eletrocardiográficas foram agrupadas em três categorias: altera es de repolariza o ventricular (ARV), sobrecarga do ventrículo esquerdo (SVE) e altera es n o relacionadas à isquemia miocárdia ou sem altera es (NRI). RESULTADOS: A popula o de estudo era predominantemente jovem, sendo 79% abaixo de 50 anos, com idade de 39,8 anos ± 13,2 anos. Cerca de 59,3% dos indivíduos eram do sexo feminino. O eletrocardiograma mostrou que 9,5% da popula o apresentava ARV e 3,3% apresentava SVE. O sexo feminino, a idade de risco (acima de 65 anos para mulheres e acima de 55 anos para homens), a presen a de diabetes, hipertens o arterial, colesterol total 3 a 200 mg/dl, LDL-colesterol 3 a 130 mg/dl, triglicérides acima de 200 mg/dl, índice de massa corpórea indicativo de sobrepeso ou obesidade (325 Kg/m2),rela o cintura/quadril alterada correlacionaram-se positivamente com ARV. O sexo masculino, diabetes, hipertens o arterial e o tabagismo foram correlacionados positivamente com SVE. Na presen a de ARV no ECG encontramos uma raz o de chance de 3,54 para a ocorrência do diagnóstico de hipertens o sistólica e de 1,83 para colesterol total 3 a 200 mg/dl. Na presen a de SVE no ECG, a raz o de chance para a ocorrência do diagnóstico de hipertens o sistólica observada foi de 5,92. Dos três fatores de risco correlacionados às altera es eletrocardiográficas associadas à isquemia miocárdia, dois s o controláveis e ligados a condi es nutricionais (hiperten
Secular trends in a population with ischemic heart disease admitted to the Instituto do Cora o in S o Paulo
Caramelli Bruno,Fornari Luciana Savoy,Monachini Maristela,Ballas Dália
Arquivos Brasileiros de Cardiologia , 2003,
Abstract: OBJECTIVE: To assess the clinical and demographic characteristics of a population with ischemic heart disease admitted in the final decades of the 20th century. METHODS: This study retrospectively assessed patients hospitalized with ischemic heart disease divided into the following 2 groups: acute group - 11.181 patients with acute myocardial infarction admitted from 1/1/82 to 12/31/94; and chronic group - 4.166 patients undergoing coronary artery bypass graft surgery from 1/1/84 to 12/31/94. RESULTS: In the acute group, an increase in the percentage of females (from 22.7% to 27.7%, P<0.001) and diabetic individuals (from 12.4% to 17.5%, P<0.001) was observed, as was an increase in age (from 57.4±11.5 to 59.9±12.1 years, P<0.05). In-hospital mortality was greater among females (27.8% and 15.7%, P=0.001), among diabetic individuals (24.2% and 17.8%, P=0.001), and among the elderly (60.9±15.2 and 57.7±11.8 years, P=0.0001). In the chronic group, an increase in the percentage of females (from 17.5% to 27.2%, P=0.001) was observed, as was an increase in age (from 56.3±8.6 to 60.5±9.6 years, P=0.0001). In-hospital mortality was greater among females (8.3% and 5.8%, P<0.05) and among the elderly (58.1±9.1 and 62.1±7.9 years, P=0.0001). CONCLUSION: The characteristics of the population studied with ischemic heart disease point towards a worse prognosis, due to the greater percentages of females, older patients, and diabetic patients, groups known to have greater in-hospital mortality.
Effect of Pixellization on Efficiency and Stability of MEH-PPV Based Polymer Light-Emitting Diodes  [PDF]
Ranbir Singh, Monica Katiyar
Journal of Encapsulation and Adsorption Sciences (JEAS) , 2012, DOI: 10.4236/jeas.2012.21002
Abstract: Organic light-emitting diodes are generally depicted as sequential deposition of active layers and electrodes onto a substrate, but commercial devices are fabricated using pixellization technique, where an insulator layer is introduced between the indium tin oxide and organic layer to define the area of the active device. Here, we have inserted a layer of photoresist (thickness ~ 200 nm) at the edge of patterned anode (indium tin oxide) and between the anode and hole transport layer (Poly 3, 4-ethylenedioxythiophene poly styrenesulfonate) to examine its effect on the leakage current of organic light-emitting diode and on the electron-hole recombination ratio in the emission area, as a result increasing the luminance efficiency. Current leakage causes the loss of charges, which adversely affects the recombination of electrons and holes in the emitting zone and results in poorer luminance efficiency. In this paper, we report the effect of pixellization on current density-voltage, luminescence-voltage and degradation behavior of single layer Poly[2-methoxy-5-(2’-ethylhexyloxy)-1, phenylene vinylene] based organic light-emitting diodes. Devices with isolation layer have 30% higher external electroluminescence quantum efficiency and reduced device degradation in comparison to without isolation layer.
Critical Factors in Managing Relationally Demanding Jobs, in Care for Very Ill and/or Dying Patients: A Phenomenological Study among Public Hospital Nurses  [PDF]
Asgerdur Bjarnadottir, Monica Lillefjell
Open Journal of Nursing (OJN) , 2015, DOI: 10.4236/ojn.2015.51007
Abstract: Background: Workload, interpersonal relationships, professional conflict and the emotional cost of providing care are potential sources of stress and burnout among nurses. Based on experiences of hospital nurses, this paper aims to identify critical factors for nurses in managing relationally demanding situations in care for very ill and/or dying patients. Methods: In-depth interviews were carried out with six nurses, working in a medium-sized hospital in Norway. The interviews were analysed using an interpretative phenomenological analysis. Results: The lack of identification with the core aspect of the job, relational contact with patients and relatives, and external motivation were found as potential barriers for managing relationally demanding jobs. The results also indicate that the nurses’ experiences of symptoms of burnout can be a result of demands that exceeded the nurses’ resources. A match between personal capacity and demands, mutual support among colleagues and leadership support, and contextual factors are critical to prevent the negative process of burnout. Conclusion: The results underscore the importance of an early response to employees who are beginning to struggle at work and the relevance of a true match between personal capacity and job demands. Moreover support among colleagues and leadership seems critical to prevent a negative process of burnout and help to manage relationally demanding jobs.
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