Healthcare Critical Knowledge Monitor System Model : healthcare critical knowledge ontology component

“Proceedings of Safety, Health and Environment World Congress, ISSN 2317-3173. Vol. 13, nr. 1 (2013)”Healthcare organizations manage with personal information concerning to patients from many sources that, typically, are supported by computer-based systems therefore, demands cautious when there are ethical and legal aspects involved. Since not all clinical knowledge managed by healthcare organizations could be considered critical (or much critical) we need to define the value of clinical knowledge for further handle in risk management. With the key aspects of InfoSec: Confidentiality, Integrity, Availability and Privacy we intent to achieve the core critical knowledge that will be the source of the healthcare critical knowledge ontology. Critical knowledge ontology should be tailored to the healthcare organization in focus to comply with multiple factors, such as: organizational culture, terminology used, health department specifications, among others. With topic model approach we intent to automatically driven document topics and match with critical healthcare knowledge from ontology, thus, give value to the documents concerning its critical knowledge.This work is financed by FEDER funds through the Competitive Factors Operational Program – COMPETE and Portuguese national funds through FCT – Fundação para a ciência e tecnologia in project FCOMP-01-0124-FEDER- 022674

Critical Knowledge Monitor System Model: healthcare context

In order to provide a better service, sharing knowledge with partners and communities is becoming part of the healthcare organizations culture. Data, information and clinic knowledge require specific cautious, because it involves ethical and legal issues. The constant evolution of Information and Communication Technologies brings new opportunities with multiple forms of communication (web 2.0), therefore, new ways of sharing knowledge. Further, there is a wide knowledge sources: patient’s feedback; knowledge from Internet sources; knowledge from decision support systems; and inference knowledge (e.g. Knowledge from Data Mining techniques) justifying the use of knowledge management systems to get its benefits. The Critical Knowledge Monitor System Model, proposed here, allows knowledge sharing in a controlled ambient and could be a part of the answer to this paradigm that healthcare organizations face. To implement the Critical Knowledge Monitor System model we’ll need to apply knowledge engineering techniques such as ontology construction, text mining, techniques, Information retrieval, among others. Since not all knowledge manage by healthcare organizations could be considered critical (or much critical), it’s necessary to define constructs to classify clinic knowledge. To achieve this, we’ll implement a focus group approach with the use of risk management techniques to classify knowledge as critical and its critical level to driven ontology with the class and terms used by the healthcare organization under study. Essentially, these are the motives of this research.This work is financed by FEDER funds through the Competitive Factors Operational Program – COMPETE and Portuguese national funds through FCT – Fundação para a ciência e tecnologia in project FCOMP-01-0124-FEDER-022674

An ontology based approach to data surveillance

Nowadays the terrorist threat took proportions that concern governments and the national security organizations, all over the world. A successful terrorist incident usually brings catastrophic results. However if a terrorist attack can be predicted and characterized, it may be possible to organize a proper intervention in order to avoid it or to reduce its impact. The management of information is becoming an important issue in the domain of security information systems. The information access and association, analysis and assessment, and finally exploitation have become the focus for all security information services and governments. Current surveillance approaches are not very efficient leading innocent citizen to the confrontation of law enforcement services. One reason for this, result from the difficulties of the current system to extract knowledge or concepts abstracted from massive databases of information. Knowledge based methods, such as ontologies can integrate data surveillance, and enable a proper data analyse improving the performance of the security information services. This paper intends to present a perspective about the use of ontologies in the context of data surveillance, and present its importance in the current security services domain.(undefined

Feasibility study of a multimodal biometric authentication solution based on pointer dynamics and skin conductivity

Due to the constant need to improve authentication systems, since they are constantly emerging new forms of intrusion, based on the current state of knowledge, we intend to study the acceptance of a recognition system based on the combination of two non-physical methods of biometric authentication: pointer dynamics and skin conductivity. With this combination, firstly, it is improved what each can offer individually and, secondly, the problem of replicability present in physical biometric is minimized. We conducted a survey with a representative sample of the Portuguese population, whose construction method and obtained results are presented in this article. We also present an introductory explanation of the involved technologies

Block-windowed burst OFDM: A high-efficiency multicarrier technique

A block-windowed burst orthogonal frequency division multiplexing (OFDM) technique which is a multicarrier technique with power spectral density similar to the filtered OFDM approach, since it also employs smoother, non-rectangular windows, is presented. However, it does not need a cyclic prefix, which means the overall power and spectral efficiencies are higher. An appropriate receiver for typical time-dispersive channels, allowing 2 dB of gain relatively conventional OFDM schemes is also presented

La composition en acides aminés, dans le régime alimentaire des larves de daurade royale, affecte-t-elle leur performance ?

7 páginas, 2 figuras, 4 tablas.[EN] Live preys commonly used in fish larval rearing seem to be imbalanced in terms of amino acids. Manipulation of their amino acid composition is difficult, but the use of microencapsulated diets allows this manipulation. This study analysed the effect of amino acid supplementation, in order to compensate for dietary amino acid imbalances, on growth and survival of gilthead seabream (Sparus aurata) larvae. Larvae were reared until 32 days after hatching, in a closed recirculating water system (19 °C), using only live food (rotifers and Artemia). Thereafter, larvae were fed Artemia or one of the experimental microencapsulated diets: supplemented with indispensable amino acids (IAAsup diet), or supplemented with dispensable amino acids (DAAsup diet). Experiment lasted for 10 days. Dietary supplementation with indispensable amino acids resulted in A/E ratios [(each indispensable amino acid) × (total indispensable amino acids)−1 × 1000] more similar to the ones of larval seabream and in higher IAA:DAA ratios than in the DAAsup diet. Survival was similar in larvae fed the IAAsup diet (75%) or Artemia (87%), but was significantly lower in larvae fed the DAAsup diet (52%). Larvae from all treatments more than doubled their average dry weight during the experimental period. Final dry weight was similar in larvae fed both microcapsules, but these were lighter than larvae fed with Artemia. Relative growth rate (RGR) and total biomass production tended to be higher in larvae fed the IAAsup (RGR = 9% day−1) than the DAAsup diet (RGR = 7.5% day−1) and only in this last treatment these parameters were significantly lower than in larvae fed with Artemia. Therefore, dietary supplementation with indispensable amino acids resulted in a more balanced dietary amino acid profile, which significantly increased survival. Further studies introducing microdiets earlier in the development seem necessary in order to optimise growth.[FR] Les proies vivantes utilisées dans les élevages larvaires semblent déséquilibrées en terme d'acides aminés. Manipuler la composition en acides aminés est difficile mais l'usage d'aliments encapsulés le permet. Cette étude analyse l'effet d'une supplémentation en acides aminés sur la croissance et la survie des larves de daurade royale (Sparus aurata) afin de compenser un déséquilibre. Les larves sont élevées jusqu'à 32 jours après éclosion en circuit fermé (eau à 19 °C), en utilisant des aliments vivants uniquement (rotifères et Artemia). Les larves sont ensuite nourries avec des Artemia ou bien avec des aliments microencapsulés expérimentaux, supplémentés en acides aminés soit indispensables (régime IAAsup) soit non-indispensables (régime DAAsup). La durée de l'expérience est de 10 jours. La supplémentation en acides aminés indispensables conduit à des ratios A/E [(chaque AA indispensable) × (total en AA indispensables)−1 × 1000] plus proches de ceux de la larve de dorade et des ratios IAA/DHA plus élevés que ne le fait la supplémentation en acides aminés non-indispensables. Le taux de survie est similaire chez les larves nourries avec le régime IAAsup (75 %) ou Artemia (87 %) mais inférieur significativement chez les larves soumises au régime DAAsup (52 %). Le poids sec moyen de ces larves, quel que soit leur régime alimentaire, a doublé durant la période expérimentale. Le poids sec est similaire chez les larves nourries de microcapsules mais moins élévé chez celles nourries d'Artemia. Le taux de croissance relative (RGR) et la production de biomasse totale tendent à être plus élevés chez les larves nourries en IAAsup (RGR = 9 % jour−1) que celles nourries en DAAsup (RGR = 7,5 % jour−1). C'est seulement dans ce dernier traitement que les paramètres sont plus faibles significativement que chez les larves nourries d'Artemia. Ainsi, les supplémentations alimentaires en acides aminés indispensables peuvent augmenter la survie. D'autres études, introduisant des micro-aliments de façon plus précoce dans le développement, semblent nécessaires afin d'optimiser la croissance.The authors acknowledge funding by project AGL2004-06669-C02-01 (MCYT, Spain) and grant SFRH/BPD/14835/2003 (FCT, Portugal).Peer reviewe

3D echoendoscopy and miniprobes for rectal cancer staging

Background: rectal cancer staging using rigid probes or echoendoscopes has some limitations. The aim of the study was to compare rectal cancer preoperative staging using conventional endoluminal ultrasonography with three-dimensional endoscopic ultrasonography and miniprobes. Materials and methods: sixty patients were included and evaluated with: a) a conventional echoendoscope (7.5 and 12 MHz); b) miniprobes (12 MHz); and c) the Easy 3D Freescan software for three-dimensional endoscopic ultrasonography. The reference or gold standard was conventional endoluminal ultrasonography in all cases and pathological assessment for those without preoperative therapy. The differences in T and N staging accuracy in both longitudinal and circumferential extension were evaluated. Results: with regard to T staging, conventional endoluminal ultrasonography had an accuracy of 85% (compared to pathological analysis), and the agreement between miniprobes vs conventional endoluminal ultrasonography (kappa = 0.81) and three-dimensional endoscopic ultrasonography vs conventional endoluminal ultrasonography (k = 0.87) was significant. In addition, miniprobes had an accuracy of 82% and three-dimensional endoscopic ultrasonography had a higher accuracy (96%). With regard to N staging, conventional endoluminal ultrasonography had an accuracy of 91% with a sensitivity of 78%. However, the agreement between miniprobes and conventional endoluminal ultrasonography and three-dimensional endoscopic ultrasonography and conventional endoluminal ultrasonography (k = 0.70) was lower. Interestingly, miniprobes had a lower accuracy of 81% whereas three-dimensional endoscopic ultrasonography had an accuracy of 100% without any false negative. No false positives were observed in any of the techniques. Accuracy for T and N staging was not influenced by longitudinal or circumferential extensions of the tumor in all types of endoscopic ultrasonography analyzed. Conclusions: miniprobes and especially three-dimensional endoscopic ultrasonography may be relevant during rectal cancer staging.info:eu-repo/semantics/publishedVersio

Streaming contents and RSS feed in a pedagogical environment

A group of university teachers have been developing several contents using streaming technology, since it promotes the support of pedagogical activity as a dynamic resource and due to the fact that is oriented to a model of shared learning contents. Now, a new challenge can be stated: the share and the reutilization of these learning contents. Apart from being an enhanced experience only concerning the sharing of knowledge, it promotes a desired partnership inter/intra-department. In this context the RSS technology introduces a new dimension in the access to streaming media contents. The RSS is a format to syndicate contents enabling users to be aware of new contents that are periodically published. The RSS technology, through the use of RSS Aggregators or RSS Readers, help the user to keep up to date all their favourite information sources that provide their contents as RSS feeds. In the scope of the streaming media contents the definition of RSS feeds enable the students to be up to date of new educational resources that are provided by the teacher. Therefore the students instead of checking the updates that are published in several educational information resources can locally see the new resources that are described and provided in the RSS feed. Some preliminaries results are presented and discussed

MILIARY TUBERCULOSIS IN THE XXI CENTURY – A CASE REPORT

Introdução: Atualmente, a tuberculose ainda representa um sério problema de saúde pública. A idade precoce e a infeção VIH constituem importantes fatores de risco para doença grave ou disseminada. Caso clínico: Apresentamos o caso de uma menina de três anos de idade observada por febre prolongada sem foco infecioso evidente ao exame físico. O estudo analítico inicial foi sugestivo de infeção urinária, pelo que iniciou antibioticoterapia empírica. A urocultura confirmou esse diagnóstico, mas a febre persistiu. Na investigação complementar, a radiografia torácica revelou um infiltrado pulmonar com padrão miliar. O Mycobacterium tuberculosis foi isolado no aspirado gástrico, líquor e urina. Iniciou tratamento com antituberculosos e corticóide, com melhoria clínica significativa. Conclusões: Nesta era de tecnologia médica avançada, a tuberculose ainda é um desafio diagnóstico, especialmente quando a apresentação clínica é atípica e extrapulmonar. Um elevado índice de suspeição clínica é fundamental, pois a instituição precoce do tratamento é decisiva para o prognóstico

Parametric study by means of 3D CFD to improve the airflow pattern and temperature distribution in data center rooms

The processing efficacy and energy efficiency of data centers (DC) is directly related with the cooling performance of the air-conditioning systems. The cooling effectiveness depends on airflow pattern and temperature distribution. This paper presents the parametric study of three-dimensional (3D) computational fluid dynamics (CFD) models to improve these technical characteristics. In this case study the most suitable thermal load, as deemed by the organization, of the heat flow boundary condition is simulated and studied for maximum and minimum airflow. The analysis of the numerical results provides a prediction of the thermal performance, i.e., the lower values and spatial gradients (hot spots) of air temperature and velocity while maintaining the computational processing requirements. These results allow the development of an optimized CFD model for setting up the operational parameters of CRAC systems for DC rooms.info:eu-repo/semantics/publishedVersio