415 research outputs found
As melodias de Kyrie nos manuscritos portugueses de cantochão entre 1400 e 1650
UIDB/00693/2020
UIDP/00693/2020Kyrie eleison é o primeiro de cinco cantos que são comuns a todas as celebrações eucarísticas e que por isso pertencem ao Ordinário da Missa, assim como o Glória, o Credo (nas maiores solenidades), o Sanctus e o Agnus Dei. Apesar do texto se manter, estes cantos podem assumir várias melodias consoante a festividade a celebrar, melodias de popularidade variável e que poderão estar também associadas a costumes locais ou de circulação limitada. A recolha deste canto nos manuscritos portugueses de cantochão, datados entre 1400 e 1650, permitiu reunir cerca de quarenta e cinco fontes manuscritas. O estudo realizado teve como objectivo identificar e analisar as melodias com a finalidade de perceber a forma como este canto foi adoptado em Portugal. Kyrie eleison is the first of five chants that are common to all eucharistic celebrations, belonging to the Mass Ordinary, as well as the Gloria, Credo (at major solemnities), Sanctus and Agnus Dei. Although the text remains the same, these chants can assume different melodies depending on the festivity, melodies of variable popularity and which may also linked to local practices or enjoy limited circulation. A survey of this chant from Portuguese chant manuscripts, dating from between circa 1400 and 1650, enabled the bringing together of forty-five manuscript sources. The objective of this study was the identification and analysis of these melodies with the purpose of understanding the way in which this chant was adopted in Portugal.publishersversionpublishe
Comparative Analysis of Bio-Vanillin Recovery from Bioconversion Media Using Pervaporation and Vacuum Distillation
Publisher Copyright:
© 2022 by the authors.The increasing demand for natural products has led to biotechnological vanillin production, which requires the recovery of vanillin (and vanillyl alcohol at trace concentrations, as in botanical vanillin) from the bioconversion broth, free from potential contaminants: the substrate and metabolites of bioconversion. This work discusses the recovery and fractionation of bio-vanillin, from a bioconversion broth, by pervaporation and by vacuum distillation, coupled with fractionated condensation. The objective was to recover vanillin free of potential contaminants, with maximised fluxes and selectivity for vanillin against water and minimised energy consumption per mass of vanillin recovered. In vacuum distillation fractionated condensation, adding several consecutive water pulses to the feed increased the percentage of recovered vanillin. In pervaporation-fractionated condensation and vacuum distillation-fractionated condensation processes, it was possible to recover vanillin and traces of vanillyl alcohol without the presence of potential contaminants. Vacuum distillation–experiments presented higher vanillin fluxes than pervaporation fractionated condensation experiments, 2.7 ± 0.1 g·m−2 h−1 and 1.19 ± 0.01 g·m−2 h−1, respectively. However, pervaporation fractionated condensation assures a selectivity of vanillin against water of 4.5 on the pervaporation step (acting as a preconcentration step) and vacuum distillation fractionated condensation requires a higher energy consumption per mass of vanillin recovered when compared with pervaporation– fractionated condensation, 2727 KWh kgVAN−1 at 85 °C and 1361 KWh kgVAN−1 at 75 °C, respectively.publishersversionpublishe
La flâneuse del siglo XXI: La relación entre el género, el poder y la ocupación del espacio púbico
[ES] La ocupación del espacio público desempeña un papel fundamental en la configuración de
cualquier sociedad. A lo largo de la historia, ha existido una marcada disparidad en el acceso y
control de estos espacios por parte de hombres y mujeres, que se ha materializado en la
desigualdad dentro de estructuras de poder y en las construcciones culturales. La ocupación del
espacio público no solo abarca la presencia física en plazas, calles y edificios, sino también el
ejercicio de la voz, la visibilidad y la influencia en las decisiones que afectan a la comunidad.
La importancia de la ocupación del espacio urbano para cualquier colectivo social reside en
que permite la autodefinición, la narración de la experiencia propia desde dentro. La presencia
de todo tipo de identidades en un espacio común, no sólo visibiliza las realidades minoritarias,
sino que las normaliza e integra dentro de otras realidades diseñadas para señalarlas. La
construcción de una comunidad inclusiva permite que la gente que comparte ciertos rasgos en
su experiencia encuentre apoyo y comprensión. Estos espacios seguros son además vitales para
personas que puedan estar viviendo violencia o discriminación. Tener voz y ser escuchadas,
desde el propio núcleo social, permite que las personas que por una razón u otra se salen de los
estrechos límites de la normatividad puedan opinar y exigir unas normas adaptadas a todo tipo
de experiencias. Sin embargo, a lo largo de la historia siempre se ha tendido a excluir a todas
estas identidades que no encajan con la etiqueta del “hombre blanco” siendo esta censura en el
espacio público una de sus armas más fuertes.
Al no existir una presencia equilibrada de realidades conviviendo, se incentiva el odio, el
miedo a lo desconocido, los prejuicios, clichés…
En este proyecto, recurriremos a la figura literaria del Flaneur o más bien la de su homónima
femenina la Flâneuse como argumento para demostrar tanto el proceso como el resultado de la
exclusión pública de las mujeres. Abordaremos mediante esta figura dualidades como la
diferencia entre “el hombre de calle” y “la mujer de calle” o la construcción narrativa en torno
a las prostitutas.
[ENG] The occupation of public space plays a fundamental role in shaping any society. Throughout
history, there has been a marked disparity in men's and women's access and control over
these spaces, which has translated into inequalities in power structures and cultural
constructions. Occupation of public space involves not only physical presence in squares,
streets and buildings, but also the exercise of voice, visibility and influence in decisions that
affect the community.
The importance of the occupation of urban space for any social collective lies in the fact that
it allows self-definition, the narration of one's own experience from within. The presence of
all kinds of identities in a common space not only makes minority realities visible, but also
normalizes and integrates them within other realities that are designed to highlight them.
Building an inclusive community allows people who share certain features of their
experience to find support and understanding. These safe spaces are also necessary for people
who may be experiencing violence or discrimination. Having a voice and being heard from
the centre of society allows people who, for one reason or another, fall outside the narrow confines of normativity to speak and to demand rules that are adapted to all kinds of
experiences. However, throughout history there has been a tendency to exclude all those
identities that do not fit the "white man" label, and this censorship in the public sphere has
been one of its most powerful weapons.
In the absence of a balanced presence of co-existing realities, hatred, fear of the unknown,
prejudice, clichés... are encouraged.
In this project, we will use the literary figure of the flaneur, or rather that of its female
namesake, the flâneuse, as an argument to demonstrate both the process and the result of the
public exclusion of women. Through this figure, we will address dualities such as the
difference between "the man in the street" and "the woman in the street", or the narrative
construction around prostitutes
Implicación de FGF8 en el correcto desarrollo de las proyecciones aferentes y eferentes del hipotálamo
Fgf8 juega un papel importante en el desarrollo del sistema nervioso central
(SNC) en distintos estadíos embrionarios regulando la expresión de otros genes y modificando el
destino celular dependiendo del territorio dentro del tubo neural. En concreto, como organizador
segundario con una expresión centrada en el istmo cerebral, en la cresta neural anterior y en la
zona limitans principalmente. En este TFG se utilizan mutantes hipomorfos para Fgf8, que
presentan una expresión reducida para este gen, para estudiar las posibles alteraciones de las
proyecciones hacia y desde el hipotálamo (en particular de la región mamilar) que hayan podido
ocurrir. Los resultados muestran que aunque no hay una implicación directa de Fgf8 en el
desarrollo de estos tractos y proyecciones, sí determina para la formación del cuerpo calloso y de
la línea media dorsal prosencefálica e indirectamente estos tractos y proyecciones se ven
anatómicamente afectados
Avaliação da qualidade de vida em crianças e adolescentes com asma: Validação semântica e estudo piloto do DISABKIDS – Módulo para a Asma
A qualidade de vida tem surgido na literatura como um importante indicador de saúde. A elevada prevalência da asma na população pediátrica portuguesa torna particularmente relevante a avaliação da qualidade de vida relacionada com a saúde nesta condição. Objectivos. (1) Descrever o processo de desenvolvimento das versões Portuguesas do DISABKIDS- Módulo para a Asma; (2) avaliar a importância e compreensibilidade dos seus itens e adequação da escala de resposta (validação semântica); e (3) examinar as suas propriedades psicométricas (estudo-piloto). Metodologia. A amostra, recolhida nos HUC, Hospital Pediátrico (Coimbra) e HSA (Leiria), foi constituída por 36 crianças (8-12 anos) e adolescentes (13-18 anos) com asma, e seus pais/ cuidadores familiares. O protocolo incluiu as versões Portuguesas (auto e hetero-relato) do DISABKIDS- Módulo para a Asma e questionários DISABKIDS de validação semântica. A gravidade da asma foi avaliada pelos médicos responsáveis. Resultados. A validação semântica do DISABKIDS- Módulo para a Asma certificou a compreensibilidade, importância e adequação dos itens. O estudo exploratório indicou boa consistência interna [.88 (auto-relato)/ .85 (hetero-relato)]. Os domínios do questionário apresentaram correlações fortes entre si e com a pontuação global (rs entre .79 e .97). O questionário apresentou ainda poder discriminante entre níveis de gravidade da asma, grupos etários e sexo das crianças/ adolescentes. O acordo entre auto e hetero-relatos foi fraco a moderado (ICCs entre .20 e .50). Conclusões. A disponibilização deste questionário para a população Portuguesa terá implicações para a investigação, clínica e políticas de saúde, possibilitando a melhoria da QdVrS das crianças/ adolescentes com asma
Parental positive meaning-making when caregiving for children with asthma
Providing informal care to children/adolescents with chronic conditions has been associated with high levels of caregiving burden and impaired quality of life (QoL); however, parents can also experience uplifts which, by facilitating the attribution of positive meanings to caregiving, may contribute to better adaptation outcomes. The present study aimed at examining the direct and indirect links, via positive reframing as a coping strategy, between caregiving uplifts and quality of life (QoL) of parents who have a child/adolescent with asthma, as well as the invariance of the mediation model across children’s age groups and asthma severity levels. A total of 180 parents of children/adolescents aged 8-18 reported their experience of caregiving uplifts (Revised Burden Measure), the use of positive reframing coping (Brief Cope) and their QoL (WHOQOL-Bref). Structural equation modeling showed a good fit for the mediation model (χ2/df=1.74, CFI=.95, RMSEA=.06), which explained 14% of the variability of parents’ QoL. The caregiving uplifts were positively associated with positive reframing coping (β=.19, p=.02), which in turn was positively associated with QoL (β=.36, p<.01). No direct effect of uplifts on parents’ QoL was found, but the indirect effect via positive reframing coping was statistically significant (β=.07, BC95%CI=.01/.14). Multi-group analyses demonstrated the strong structural invariance of the model across age groups (Δχ2=.89, p=.35) and asthma severity levels (Δχ2=1.91, p=.17). These results suggest that psychological interventions focused on recognizing and valuing caregiving uplifts and on positive reappraisal of the stressful situation may support more adaptive coping processes and improve parents’ QoL
Quality of Life and Adjustment in Youths with Asthma: The Contributions of Family Rituals and the Family Environment
This cross-sectional study explored the relationships among family ritual meaning, cohesion, conflict, and health-related quality of life (both specific to chronic health condi- tions and in general), and the emotional and behavioral problems reported by youths with asthma. Participants included 149 Portuguese children and adolescents between the ages of 8 and 18 who had been diagnosed with asthma and attended outpatient services at three public hospitals. The results showed that stronger family ritual meaning predicted a more positive family environment (i.e., higher cohesion levels and lower conflict levels), better health-related quality of life, and fewer emotional and behavior problems in youths. Fur- thermore, family cohesion and conflict mediated the links between family ritual meaning and health-related quality of life, and emotional and behavioral problems. These results did not change after controlling for participant age, gender, and asthma severity. The find- ings of this study suggest that family ritual meaning contributes to the adaptation of youths with asthma via its positive association with the family environment. The implica- tions for multicontextual interventions with families are briefly discussed with regard to the positive role of family rituals and of their potential as a modifiable factor in families with increased health challenges
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