2,643 research outputs found
Conditional entropy of glueball states
The conditional entropy of glueball states is calculated using a holographic
description. Glueball states are represented by a supergravity dual picture,
consisting of a 5-dimensional graviton-dilaton action of a dynamical
holographic AdS/QCD model. The conditional entropy is studied as a function of
the glueball spin and of the mass, providing information about the stability of
the glueball states.Comment: 6 pages, 4 figure
Rua 5 de Outubro (Crato): uma intervenção do Instituto Português de Arqueologia
Here we present the results of the archaeological works that token place at
the IPA-Crato Extension, during construction beneficiation of the building. The diggings
reveal archaeological levels from modern and contemporary periods
E depois do adeus… Uma breve retrospectiva sobre a Extensão do Crato do Instituto Português de Arqueologia (1998-2006)
A Extensão do Crato, do Instituto Português de Arqueologia (IPA), inaugurada no dia 28
de Março de 1998, encontra-se instalada na antiga casa do prelado da capela do séc. XVII, situada em frente da actual Biblioteca Municipal do Crato (antiga cadeia). Foi a primeira Extensão a abrir tendo, na altura, contado com a presença do ministro da Cultura em exercício, Prof. Doutor Manuel Maria Carrilho.
A criação da Extensão do IPA Crato está intimamente ligada à criação do Instituto Português de Arqueologia. De facto, no n.º 3 do artº 10 do Decreto-Lei n.º 117/97, de 14 de Maio, é criado o Instituto Português de Arqueologia e respectivas Extensões Territoriais, definindo-se
as atribuições e competências do IPA e as áreas de actuação das Extensões então criadas (posteriormente
foram criadas mais três Extensões: Silves, Pombal e Lisboa)
Reproducibilidad de mediciones de apófisis estiloides y prevalencia de apófisis estiloides elongadas.
Tesis (Magíster en Odontología con
Especialización en Radiología Dental y Máxilofacial)Las apófisis estiloides elongadas pueden ser detectadas con un examen cuidadoso y una técnica radiográfica correcta. No obstante, la mayoría de las veces esta condición es asintomática y la presencia de las apófisis estiloides elongadas pueden generar serias consecuencias al paciente. Aproximadamente sólo un 4% de los pacientes con apófisis elongadas presentan síntomas. Los más comunes son: Dolor en la región amigdalina irradiado a veces a la zona carotídea y laríngea, cefalea, otalgia, tinitus, sensación de sordera, sialorrea, disfonía, disfagia, limitación en los movimientos del cuello, ruido a nivel de la articulación temporomandibular, sensación de cuerpo extraño en las fauces, vértigo y síncope transitorio. El tamaño promedio de las apófisis estiloides en trabajos publicados en la literatura es de 25mm y cuando es mayor de 30mm pasa a ser considerado elongado. El término “apófisis estiloide elongada” fue utilizado en nuestro trabajo indistintamente si se trataba de un caso verdadero de apófisis estiloides elongada o un caso de calcificación, mineralización u osificación de la apófisis y/o del ligamento estilohioideo. Apófisis con más de 30mm de extensión fueron consideradas elongadas. El objetivo general de nuestra investigación fue determinar la reproducibilidad de mediciones de apófisis estiloides en radiografías panorámicas. Para esto utilizamos el Coeficiente de correlación intraclase como indicador estadístico. Los objetivos específicos del estudio fueron determinar la prevalencia de apófisis estiloides elongadas en la muestra de la población analizada, así como su prevalencia en cuanto al sexo, lado y rango de edad utilizando radiografías panorámicas. Para esto utilizamos tablas con valores absolutos y porcentuales de la prevalencia de apófisis estiloides elongadas.
En conclusión, la reproducibilidad de las mediciones presentó un nivel de concordancia bueno a muy bueno. La prevalencia de apófisis estiloides elongadas fue de 30,63% y similar en cuanto al sexo. La forma unilateral fue más prevalente que la bilateral. Hubo mayor prevalencia del lado izquierdo que el derecho y la mayor prevalencia se presentó en el grupo de pacientes con rango de edad entre 50 y 59 años
A big data approach to explore medical imaging repositories based on DICOM
Medical imaging repositories based on the DICOM format such as Picture Archiving and Communication Systems have a huge potential from a big data perspective. The study reported by this paper aimed to verify on how the big data lifecycle processes, from production to consumption might be implemented to take advantage of the DICOM standard and respective data sources. After identifying the different processes (i.e., data collection, integration, filtering, anonymization and enrichment, and knowledge extraction) the study demonstrate their implementation using an open-source application able to access the DICOM metadata independently of the medical imaging modalities and equipment manufacturers.publishe
Comparing the content of instruments assessing environmental factors using the International Classification of Functioning, Disability and Health
Purpose: To describe and compare the content of instruments
that assess environmental factors using the International
Classification of Functioning, Disability and Health (ICF).
Methods: A systematic search of PubMed, CINAHL and
PEDro databases was conducted using a pre-determined
search strategy. The identified instruments were screened independently
by two investigators, and meaningful concepts
were linked to the most precise ICF category according to
published linking rules.
Results: Six instruments were included, containing 526
meaningful concepts. Instruments had between 20% and
98% of items linked to categories in Chapter 1. The highest
percentage of items from one instrument linked to categories
in Chapters 2–5 varied between 9% and 50%. The presence
or absence of environmental factors in a specific context is
assessed in 3 instruments, while the other 3 assess the intensity
of the impact of environmental factors.
Discussion: Instruments differ in their content, type of assessment,
and have several items linked to the same ICF
category. Most instruments primarily assess products and
technology (Chapter 1), highlighting the need to deepen the
discussion on the theory that supports the measurement of
environmental factors. This discussion should be thorough
and lead to the development of methodologies and new tools
that capture the underlying concepts of the ICF
Crowdsourcing technologies to promote citizens’ participation in smart cities, a scoping review
The scoping review reported by this article aimed to identify (i) the purposes of the studies using crowdsourcing technologies in the context of the smart cities’ implementations, (ii) the characteristics of the crowdsourcing technologies being used, and (iii) the maturity level of the solutions being proposed. An electronic search was conducted, and 29 studies were included in the review after the selection process. The results show a current interest in crowdsourcing campaigns using participatory reporting and participatory sensing to (i) support urban infrastructures’ maintenance, (ii) facilitate urban mobility, (iii) monitor the environment, (iv) manage crowds, (v) aggregate geographical information, and (vi) collect citizens’ perspectives about the cities. However, the results also show low maturity level of the proposed solutions and lack of consolidated evidence about their effectiveness, which difficulties their dissemination.publishe
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