596 research outputs found
Del poder de la magia, a la magia del poder: Textos y figures de execración en el Antiguo Egipto
No full textTreballs Finals de Grau d'Història de l'Art, Facultat de Geografia i Història, Universitat de Barcelona, Curs: 2024-2025, Tutor: Núria Torras BenezetEste trabajo explora los ritos de execración en el Antiguo Egipto como un conjunto de prácticas mágico-religiosas empleadas para neutralizar de manera simbólica a los enemigos del Estado y preservar el orden cósmico. La investigación aborda su origen en el Reino Antiguo, así como su desarrollo y estandarización en el Reino Medio. A través del estudio de fuentes arqueológicas, como el depósito de Mirgissa, se examina cómo la práctica ritual combinaba elementos como la escritura, la iconografía y la violencia ritual sobre distintos soportes, con el objetivo de reforzar su función apotropaica y contribuir a la preservación del poder faraónico. Asimismo, se exploran las dimensiones simbólicas de los objetos empleados, sus componentes y la estrecha relación entre magia y religión
Santuari de Núria
No full textBoInformació extreta de l'àlbum de l'EMC: Apel·latiu: Anuri. Facilitada per: Vídua d'en Cèsar August Torras i Ferreri. Facilitada en: 12-192
Santuari de Núria
No full textBoInformació extreta de l'àlbum de l'EMC: Situació: Festa de Sant Gil. Facilitada per: Josep Danés i Torras
La creu de'n Riba
No full textBoInformació extreta de l'àlbum de l'EMC: Situació: Prop del santuari de Núria. Facilitada per: Josep Danés i Torras. Facilitada en: 192
Bioprinted gut-on-a-chip to mimic the small intestinal mucosa
No full textTreballs Finals de Grau d'Enginyeria Biomèdica. Facultat de Medicina i Ciències de la Salut. Universitat de Barcelona. Curs: 2020-2021. Directores: María García Díaz & Núria Torras Andrés. Tutora: Elena Martínez FraizOrgan-on-a-chip (OoC) is an emerging technology which combines microfluidics with cell culture
to create platforms that replicate human organs. These predictive models are used to understand
human physiology and to predict responses to medical treatments. Being the small intestine the
largest interface between the environment and the human organism and one of the most important
organs involved in drug metabolism, there is an increasing interest from researchers and the
pharmaceutical industry for reliable in vitro intestine models. However, currently available gut-ona-
chip devices that replicate the complex microenvironment found in the in vivo tissue are scarce,
limiting their translational capabilities to clinical outcomes. Therefore, in this work we aim to develop
a reproducible gut-on-a-chip device that mimics the 3D architecture and cell heterogeneity of the
small intestinal mucosa. SLA 3D bioprinting will be used to fabricate cell-encapsulating GelMAPEGDA
hydrogels that support the formation of an epithelial monolayer on top, to replicate the two
compartments of the intestinal mucosa; the lamina propria and the intestinal epithelial barrier. The
hydrogels contain fibroblasts and immune cells, which play a key role in maintaining the intestinal
mucosa integrity and homeostasis. These scaffolds will be then incorporated into PDMS
microfluidic chips to create the final biomimetic system. Although further improvements are needed,
this gut-on-a-chip, obtained using precise and fast fabrication techniques, might be a useful tool for
drug development and human physiology studies
Design of a hydrogel-based microfluidic chip for Organ-on-Chip applications
No full textTreballs Finals de Grau d'Enginyeria Biomèdica. Facultat de Medicina i Ciències de la Salut. Universitat de Barcelona. Curs: 2021-2022. Directores / Tutores: María García Díaz i Núria Torras Andrés.Organ-on-chip is an emerging technology that combines microfluidic devices with 3D cell cultures
to provide in vitro models that resemble the in vivo physiology of organs and tissues. These
platforms can be used to understand the dysfunctions and pathogenesis of the body and to perform
drug development and toxicology assays. Since in colorectal cancer the survival rate is very low
when metastasis has occurred, the development of technologies that can be used to test new drugs
and improve the prognosis of the disease is essential. Organ-on-chip can be used to model the
tumor vascular microenvironment and provide a platform to understand the metastatic process by
means of a vessel-on-chip, which would simulate the blood-vessel environment. However, current
vessel-on-chip devices lack the translational capability to clinical outcomes. Therefore, in this
project we aim to design, fabricate and validate a hydrogel-based microfluidic chip for in vitro
modelling a blood vessel by embedding fibroblasts in the gel to recreate the surrounding
extracellular matrix and support the later endothelial cell seeding in its walls. On the one hand, hot
embossing technique was used to fabricate PMMA substrates of the chips. Screws and nuts were
used to seal the devices to avoid the mixture of fluids in the outlets of the different channels and
leakage. On the other hand, SLA 3D bioprinting approach was used to fabricate GelMA-PEGDA
hydrogels that sustained the encapsulated fibroblasts. Different chip geometries were designed
and validated including cell-laden hydrogels under flow conditions. Live/DeadTM assay was
performed to assess cell viability of the encapsulated fibroblasts at different time points. Results
shown that over 50% of the cells were alive after 7 days in culture in the chips, proving its feasibility,
yet attributed to the lack of medium flow in the channels due to leakage. Even though further
improvements are needed, this microfluidic device can be obtained using precise, low-cost and fast
fabrication techniques and has offered promising results in terms of cell viability
Goigs a Sant Carles Borromeu, Apòstol de la Caritat / Goigs a la Mare de Déu de Núria
No full textImpremta El Vaixell.
Aquests goigs son publicats en agraïment i homenatge al matrimoni Carles Babot i Boixeda i Núria Nel·lo i Ventosa, per la seva assídua aportació a l'arxiu i patrimoni de la nostra entitat
Bioprinted gut-on-a-chip to mimic the intestinal mucosa
No full textTreballs Finals de Grau d'Enginyeria Biomèdica. Facultat de Medicina i Ciències de la Salut. Universitat de Barcelona. Curs: 2020-2021. Director: Núria Torras. Co-Director: María García. Tutor: Elena MartínezThe search and development of technologies with the ability to replicate the complex characteristics of the human body has increased greatly in recent years. Organ-on-a-chip systems are clear examples, since they allow for the replication of a chosen organ including a representative population of cells and a controlled microenvironment with applied flow conditions, resulting in robust in vitro models that better recapitulate the in vivo tissue conditions, compared to standard 2D or 3D culture methods. The main aim of this final degree project is to develop a bioprinted gut-on-a-chip model to mimic the intestinal mucosa.
Firstly, the intestinal mucosa is composed of physical and immune elements and has protective functions. In vitro models that grown monolayers of epithelial cell lines provide a limited representation of the intestinal mucosa. The in vitro model reviewed will mimic the in vivo characteristics of the native tissue including its specific 3D topography, the main cellular components and flow conditions, allowing for a better understanding of its performance. In order to incorporate the intestinal mucosa in our model, a microenvironment must be created in which the cell can live and perform their functions. Hydrogel co-networks based on GelMA and PEGDA have been postulated as the best candidate. The incorporation of microstructured hydrogels, that mimic the three-dimensional structure of the intestine, and the cell environment on the present gut-on-a-chip model, better resemble the physiological conditions thus, having a strong impact on mucosal-related disease modelling and drug testing. The method used to carry out the structuring of the hydrogel has been bioprinting. Specifically, the most commonly used bioprinting methods for the generation of lab-on-chip systems have been analysed and compared, to evidence, the main advantages of the Digital light processing projector-based stereo-lithography printing method, reported in this project..
Reseña de: Pinch, Geraldine, La magia en el Antiguo Egipto
No full textBook review: Pinch, Geraldine, La magia en el Antiguo Egipto. Traducción de Cristina García González; edición de Raúl López López; prólogo de Núria Torras Benezet. Córdoba, 2025. Ediciones Almuzara, colección Erasmus-Nun. 294 págs. ISBN 9788410199484.Reseña de: Pinch, Geraldine, La magia en el Antiguo Egipto. Traducción de Cristina García González; edición de Raúl López López; prólogo de Núria Torras Benezet. Córdoba, 2025. Ediciones Almuzara, colección Erasmus-Nun. 294 págs. ISBN 9788410199484
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