9,536 research outputs found
Islamic Practices, Traditions and Beliefs in Egypt and the Eastern Mediterranean in the Early 16th Century: Georgius Gemnicensis’ Ephemeris
No full textThis article reports several excerpts of Georgius Gemnicensis’ Ephemeris, a travel journal in which the author recounted his experiences in Mamluk Egypt and the Eastern Mediterranean, and provided a number of details about customs, beliefs and Islamic practices in such territories at the beginning of the 16th century
Ultra high energy cosmic ray horizons
No full textSF2A-2008: Proceedings of the Annual meeting of the French Society of Astronomy and Astrophysics Eds.: C. Charbonnel, F. Combes and R. Samadi. Available online at http://proc.sf2a.asso.frInternational audienceWe calculate the horizons of ultra high energy cosmic rays assuming different nuclei primaries ranging from proton to iron at ultra high energies (>6\cdot10^{19}). We show that sources of ultra high energy protons and heavy nuclei can originate from distances up to ˜ 180 Mpc, while low and intermediate mass nuclei can only originate in the local universe (< 50 Mpc.
Pierre auger data, photons, and top-down cosmic ray models
No full textInternational audienceWe consider the ultrahigh energy cosmic ray (UHECR) spectrum as measured by the Pierre Auger Observatory. Top-down models for the origin of UHECRs predict an increasing photon component at energies above about 1019.7eV. Here we present a simple prescription to compare the Auger data with a prediction assuming a pure proton component or a prediction assuming a changing primary component appropriate for a top-down model. We find that the UHECR spectrum predicted in top-down models is a good fit to the Auger data. Eventually, Auger will measure a composition-independent spectrum and will be capable of either confirming or excluding the quantity of photons predicted in top-down models
Extended clustering analyses to constrain the deflection angular scale and source density of the ultra-high-energy cosmic rays
No full textThe search of a clustering signal in the arrival directions of ultra-high-energy cosmic rays (UHECRs) is a standard method to assess the level of anisotropy of the data sets under investigation. Here, we first show how to quantify the sensitivity of a UHECR detector to the detection of anisotropy, and then propose a new method that advances the study of the two-point auto-correlation function, enabling one to put astrophysically meaningful constraints on both the effective UHECR source density and the angular deflections that these charged particles suffer while they propagate through the galactic and intergalactic magnetic fields. We apply the method to simulated data sets obtained under various astrophysical conditions, and show how the input model parameters can be estimated through our analysis, introducing the notion of "clustering similarity" (between data sets), to which we give a precise statistical meaning. We also study how the constraining power of the method is influenced by the size of the data set under investigation, the minimum energy of the UHECRs to which it is applied, and a prior assumption about the underlying source distribution. We also show that this method is particularly adapted to data sets consisting of a few tens to a few hundreds of events, which corresponds to the current and near-future observational situation in the field of UHECRs
Ficción autográfica y autografía ficcional: La busca del jardín y Ce que la nuit raconte au jour de Héctor Bianciotti
No full textThis article compares two autobiographical works of the French-Argentinian writer, Héctor Bianciotti: La busca del jardín (1977), written in Spanish, and Ce que la nuit raconte au jour (1992), published in French. Narratological methods are used in order to analyze the relationship between the author, the narrator and the character and the spatio-temporal structure of the texts. The Spanish story is written in third person in the form of a dictionary and tends to metaphorization. The French work is told in first person with a more important temporal and spatial coherence. Their comparison demonstrates that the change of language between the writing of the two books could provoke different autofigurations and mean in a certain way for Bianciotti finding himself in the language of adoption.Cet article compare deux œuvres d’inspiration autobiographique de l’écrivain franco-argentin, Héctor Bianciotti: La busca del jardín (1977), écrite en espagnol, et Ce que la nuit raconte au jour (1992), publiée en français. Les méthodes narratologiques y sont utilisées pour analyser la relation de l’auteur, du narrateur et du personnage et la structure spatio-temporelle des textes. Le récit espagnol est écrit à la troisième personne sous forme de dictionnaire et tend à la métaphorisation. L’œuvre française est narrée à la première personne avec une cohérence temporelle et spatiale plus importante. Leur comparaison démontre que le changement de langue entre l’écriture des deux livres pouvait provoquer chez Bianciotti des autofigurations différentes et d’une certaine manière la rencontre avec soi-même dans la langue d’adoption
Author attribution using profile classifiers
No full textA atribuição autoral (AA) busca identificar um autor de texto a partir de um conjunto de autores conhecidos. Autores deixam rastros em seus textos e é possível identificar características sociolinguísticas baseadas no estilos de escrita refletidos no texto destes autores. A atribuição autoral está cada vez mais demonstrando importância para diversas atividades sociais, em especial para a análise forense. Os trabalhos envolvendo AA demonstram resultados modestos e motivam a exploração de diferentes técnicas para melhorar a acurácia dos modelos atuais. A partir desses pontos, o presente trabalho apresenta uma proposta de pesquisa em nível de mestrado no campo de processamento de língua natural (PLN), com ênfase em AA, com o objetivo geral de melhorar o desempenho de classificadores de atribuição autoral utilizando técnicas de caracterização autoral (CA)Author attribution (AA) seeks to identify a text author from a set of known authors. Authors leave traces in their texts and it is possible to identify sociolinguistic characteristics based on the writing styles reflected in the text of these authors. Author attribution is increasingly showing importance for various social activities, especially forensic analysis. Studies involving AA show modest results and motivate the exploration of different techniques to improve the accuracy of current models. From these perspective, this project presents a master\'s level research proposal in the field of natural language processing (NLP), with an emphasis in AA, with the general objective of improving the performance of AA classifiers using author profiling technique
Em busca da ética da escrita contemporânea
No full textEm sua famosa conferência “O que é um autor?” (1969), Foucault desenvolve o conceito de função-autor diferenciando-o daquilo que ele chama de “princípio ético de escrita” de seu tempo, que era marcada por uma indiferença quanto à voz autoral. Hoje, quase cinquenta anos depois, podemos dizer que a ética de escrita mudou radicalmente, se levarmos em conta o complexo fenômeno que se convencionou chamar “o retorno do autor”. Sendo assim, cumpre perguntar: qual é a ética de escrita contemporânea? Para respondê-lo, analisamos o romance Soldados de Salamina (2001), de Javier Cercas, bem como a contribuição teórica recente de Giorgio Agamben (2007) e Daniel Link (2010). Por fim, arriscamos afirmar que a ética de escrita contemporânea consiste, justamente, na busca por uma ética de escrita, num movimento no qual o que importa é a procura e não a conclusão, o processo e não o acabamento. In his famous conference “What is an author” (1969), Foucault develops the author-function concept making a differentiation between it and the “ethical principle of writing” of his times, which was marked by an indifference to the authorial voice. Today, almost fifty years later, we could affirm the ethic of writing has changed radically if we take the complex phenomenon known as “the author return” into consideration. Thus, we ask: what is the contemporary ethic of writing? To answer that question, we analyze the Javier Cercas’ novel Soldiers of Salamina (2001), as well as the theoretical contribution of Giorgio Agamben (2007) and Daniel Link (2010). Finally, we venture to affirm that the contemporary ethic of writing consists precisely in the search for an ethic of writing, in a movement in which what matters is the search and not the conclusion, the process and not the finish
Guias de Aplicação de um Protocolo de Mapeamento Sistemático para Busca de Aplicativos de Saúde em Repositórios Não-acadêmicos (v2.1)
No full textGuias de aplicação de um protocolo de mapeamento sistemático para busca de aplicativos de saúde em repositórios não-acadêmicos.
Guias disponíveis para os seguintes perfis de usuário:
- profissional de saúde
- desenvolvedor de software
Referências para citação dos guias:
@inproceedings{de2021protocolo,
title={Protocolo de mapeamento sistem{\'a}tico para busca de aplicativos de sa{\'u}de em reposit{\'o}rios n{\~a}o-acad{\^e}micos},
author={de Lima, Luis F and Peres, Leticia M},
booktitle={Anais do I Workshop de Pr{\'a}ticas de Ci{\^e}ncia Aberta para Engenharia de Software},
pages={7--12},
year={2021},
organization={SBC}
}
@article{de2022protocol,
title={A Protocol Based on Systematic Mapping Studies for Searching Health Applications in Non-Academic Repositories},
author={de Lima, Luis Felipe and Peres, Leticia Mara},
journal={SBC Reviews on Computer Science},
volume={2},
number={1},
year={2022}
COMPORTAMENTO DE BUSCA DE INFORMAÇÕES DE PACIENTES COM CÂNCER EM CUIDADOS PALIATIVOS NO NORTE DA NIGÉRIA
No full textThis study assessed information seek behaviour of cancer patients in palliative care in Northern Nigeria. The study was guided with two hypotheses. Survey research design was used for this study. The population for this study comprise all patients in palliative care attending Usman Danfudio Teaching Hospital, Sokoto; Ahmadu Bello University Teaching Hospital, Zaria and National Hospital, Abuja the three (3) hospital were purposively selected because they are the only University Teaching Hospital that offer radiotherapy in Northern Nigeria and a total of five hundred and eighty four (584) (University Teaching Hospital). Availability sampling procedure was used for the study. Split half reliability method was employed to test the reliability of the instrument and the reliability index of 0.85 was obtained. Analysis of data was done using descriptive statistics of mean, standard deviation, frequency counts and percentage. t-test and chi-squre was used to test hypotheses at 0.05 alpha level of significance. The results indicated that there is significant difference in information seeking behaviour of cancer patients in palliative care in Northern Nigeria (P < 0.05) and there is no significant difference between male and female on information seeking behaviour of cancer patients in palliative care in Northern Nigeria (P>0.05). it was recommended that Government and health workers should organise programs for cancer patients in palliative care in Northern Nigeria so as to spread awareness that will make cancer patients acquire correct information on management of cancer.Este estudo avaliou informações em busca de comportamento de pacientes com câncer em cuidados paliativos no norte da Nigéria. O estudo foi orientado com duas hipóteses. O desenho da pesquisa foi utilizado para este estudo. A população para este estudo compreende todos os pacientes em cuidados paliativos que frequentam o Usman Danfudio Teaching Hospital, Sokoto; Ahmadu Bello University Teaching Hospital, Zaria e National Hospital, Abuja os três (3) hospitais foram selecionados propositalmente porque são o único hospital universitário que oferece radioterapia no norte da Nigéria e um total de quinhentos e oitenta e quatro (584) (University Teaching Hospital). O procedimento de amostragem de disponibilidade foi utilizado para o estudo. Para testar a confiabilidade do instrumento, foi empregado o método da metade da confiabilidade e o índice de confiabilidade de 0,85 foi obtido. A análise dos dados foi feita usando estatísticas descritivas de média, desvio padrão, contagens de frequência e porcentagem. O teste t e o qui-quadrado foram usados para testar hipóteses em nível 0,05 alfa de significância. Os resultados indicaram que há diferença significativa na busca de informações sobre o comportamento de pacientes com câncer nos cuidados paliativos no norte da Nigéria (P < 0,05) e não há diferença significativa entre homens e mulheres na busca de informações sobre o comportamento de pacientes com câncer nos cuidados paliativos no norte da Nigéria (P>0,05). foi recomendado que o governo e os profissionais de saúde organizassem programas para pacientes com câncer nos cuidados paliativos no norte da Nigéria, a fim de difundir a conscientização que fará com que os pacientes com câncer adquiram informações corretas sobre o manejo do câncer
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