Eventos con fines sociales : Estudio de caso, Fundación Helping by Doing

El presente Trabajo Fin de Grado, pretende investigar los eventos con fines sociales, su evolución, presencia hoy en día y beneficios que puede reportar a la sociedad. Estos eventos incluyen un impacto y una transcendencia en el mundo social, por ello creemos que es importante estudiar a fondo estos actos que son empleados por las empresas para hacer frente a la necesidad de enfocar su actividad en el bien común y devolver a la sociedad lo que, como empresas u organizaciones, toman prestado del espacio común para su lucro privado. Para aproximarnos lo más posible a nuestro objeto de estudio, realizaremos un estudio de caso explorando la filosofía y actividades de la Fundación Helping by Doing, que complementaremos una entrevista a su fundador, quien dedica su tiempo a realizar eventos que contengan un fin social y estén realizados desde la responsabilidad social estratégica, no filantrópica. En esta organización se trabaja desde una igualdad de planos entre el mundo empresarial y social para así tratar de reportar mayores beneficios para ambosThe following project aims to investigate events with social purposes, as well as their evolution, their presence nowadays and the benefits that they provide society with. The study of these events is justified by their impact and transcendence in the social world, as a way to understanding the need that companies have to focus their activity on the common good and to return to society what is borrowed from the common space by organizations for their private profit. In order to get a closer approach to the object of the study, a case will be conducted around the Helping by Doing Foundation, supported by an interview with its founder, who devotes his time to holding events that have a social purpose and that are developed from a strategic social responsibility, not philanthropic, something essential due to the fact that the equality between the business and social work is expected in order to report greater benefits in both fields.Departamento de Historia Moderna, Contemporánea y de América, Periodismo y Comunicación Audiovisual y PublicidadGrado en Publicidad y Relaciones Pública

Technologies for participatory medicine and health promotion in the elderly population

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Random lasing in an organic light-emitting crystal and its interplay with vertical cavity feedback

The simultaneous vertical-cavity and random lasing emission properties of a blue-emitting molecular crystal are investigated. The 1,1,4,4-tetraphenyl-1,3-butadiene samples, grown by physical vapour transport, feature room-temperature stimulated emission peaked at about 430 nm. Fabry-P\'erot and random resonances are primed by the interfaces of the crystal with external media and by defect scatterers, respectively. The analysis of the resulting lasing spectra evidences the existence of narrow peaks due to both the built-in vertical Fabry-P\'erot cavity and random lasing in a novel, surface-emitting configuration and threshold around 500 microJ cm^-2. The anti-correlation between different modes is also highlighted, due to competition for gain. Molecular crystals with optical gain candidate as promising photonic media inherently supporting multiple lasing mechanisms.Comment: 15 pages, 4 figure

Absolute luminescence efficiency and photonic band-gap effect of conjugated polymers with top-deposited distributed Bragg reflectors

We study the effects of the deposition of a photonic crystal (PhC) structure, namely a distributed Bragg reflector, on a light-emitting conjugated polymer. The hybrid organic/PhC system is realised by a novel low-temperature reactive electron beam deposition, suitable for the direct fabrication of high-reflective mirrors onto organic soft matter. We investigated the photoluminescence absolute quantum efficiency of the system, finding a yield of 30% after the mirror deposition. We found evidence for the modulation of the output spectra by the photonic band-gap of the coupled PhC, and for the polarisation splitting (as large as 140 meV) of the emitted light

Polarization splitting in organic-based microcavities working in the strong coupling regime

Abstract The emission features and the polarization splitting are investigated in organic microcavities operating in the strong coupling regime. The microcavity relies on a J -aggregate of cyanine dyes as active layer, and on high reflectivity distributed Bragg reflectors, fabricated by low-temperature reactive electron-beam evaporation. The operation of the microcavities in the strong coupling regime is demonstrated both by reflectivity and photoluminescence characterization. A vacuum Rabi splitting in the range 30–100 meV is reported. Important, both polariton branches exhibit a TM–TE polarization splitting depending on the incident angle, θ , and exhibiting a maximum of 35 meV. The angular behaviour of the splitting in the strong coupling regime is investigated and described by the sin 2 θ dependence predicted by the polarization splitting model

Low-threshold blue-emitting monolithic polymer vertical cavity surface-emitting lasers

The authors report on a monolithic vertical microcavity blue laser with a carbazole/fluorenyl derivative copolymer active film. The laser is realized by electron-beam deposition of the two dielectric mirrors on the bottom and on the top of the polymeric active layer. The devices exhibit a threshold fluence as low as 1.2 mu J/cm(2), with a divergence of the emission beam of 2.8 degrees. The measured lasing threshold and operational lifetimes (> 1.5x10(4) pulses at an excitation density 500 times larger than threshold) are among the best so far reported for blue-emitting polymer lasers, thus making these devices promising candidates for future electrical excitation. (c) 2006 American Institute of Physics

The evolution of dam-litter microbial flora from birth to 60 days of age

BACKGROUND: Early bacterial colonization in puppies is still a poorly understood phenomenon. Although the topic is of considerable interest, a big gap in knowledge still exists on the understanding of timing and features of neonatal gut colonization. Thence, the purpose of this study was to evaluate the relationship between dam and litter microbial flora, in vaginally delivered puppies, from birth to two months of age. Bacteria were identified using MALDI-TOF, an accurate and sensitive method, and cluster analysis of data provided a new insight on the investigated topic. METHODS: Six dam-litter units of two medium size breeds were enrolled in the study. Vaginal and colostrum/milk samples were collected from dams after delivery and 48h post-partum, while rectal samples were taken from dams and puppies after delivery and at day 2, 30 and 60 (T2, T30 and T60, respectively) post-partum. Bacterial isolation and identification were performed following standard techniques, then the data were analyzed using a new approach based on bacterial genus population composition obtained using a wide MALDI-TOF screening and cluster analysis. RESULTS: Forty-eight bacteriological samples were collected from the dams and 145 from their 42 puppies. Colostrum/milk samples (n = 12) showed a bacterial growth mainly limited to few colonies. Staphylococci, Enterococci, E. coli, Proteus spp. were most frequently isolated. All vaginal swabs (n = 12) resulted in bacteria isolation (medium to high growth). Streptococci, Enterococci, E. coli were the most frequently detected. E. coli, Proteus mirabilis, Enterococcus spp., Streptococcus spp. were often obtained from dams’ and puppies’ rectal swabs. Clostridia, not isolated in any other sampling site, were rarely found (n = 3) in meconium while they were more frequently isolated at later times (T2: n = 30; T30: n = 17; T60: n = 27). Analysis of the bacterial genus pattern over time showed a statistically significant reduction (P < 0.01) in the heterogeneity of microbial composition in all time points if compared to birth for each dam-litter unit. These results were confirmed with cluster analysis and two-dimensional scaling. CONCLUSION: This novel data analysis suggests a fundamental role of the individual dam in seeding and shaping the microbiome of the litter. Thus, modulating the dam’s microbiota may positively impact the puppy microbiota and benefit their health. SUPPLEMENTARY INFORMATION: The online version contains supplementary material available at 10.1186/s12917-022-03199-3