8,721 research outputs found
Nuevas técnicas de investigación basadas en la observación de la respuesta emocional de los consumidores. Análisis del servicio de despacho a domicilio de alimento de mascotas
Debido a la dudas respecto de posibles diferencias entre lo que declaran consumidores que participan en estudios de mercado y lo que realmente sienten, se realizó un estudio para evaluar el uso de nuevas técnicas de investigación de conducta de los consumidores, aplicada a la percepción de los participantes respecto de un estímulo de marketing, consistente en el logotipo de una empresa de servicios de despacho a domicilio de alimento para mascotas. La técnica evaluada consistió en la observación no obstructiva de la respuesta emocional de consumidores durante la evaluación dicho logotipo, medida en términos de la emoción predominante y la valencia de dicha emoción. El estudio se organizó en tres etapas, en la primera se realizaron cuatro sesiones de Grupo Focales con un total de 32 participantes, organizados en categorías de acuerdo a su edad y Grupo Socioeconómico. Las etapas dos y tres consistieron en una serie de entrevistas individuales, a un grupo de cinco y seis mujeres respectivamente. Los resultados del trabajo sugieren que el uso de la medición y análisis de la respuesta emocional de las personas, provee de información de utilidad, complementaria a la generada por técnicas tradicionales de investigación, contribuyendo de ese modo con información que permite generar estímulos de marketing más coherentes para los consumidores
The vertical flux of rare earth elements in the northwestern Mediterranean
Rare earth element (REE) composition of sinking particles was examined in time-series sediment trap samples collected from four depths (200, 500, 1000, 2000 m) in the Gulf of Lions. Vertical flux profiles showed the occurrence of a sedimentation pulse which resulted in the rapid sinking of phytoplankton aggregates to 2000 m depth. These particles were characterized by REE patterns similar to those in the upper 200 m indicating that little, if any, additional REE scavenging occurred during the sedimentation event. In contrast, after the sedimentation pulse, particles from deep waters showed an enrichment of light-REE (LREE) relative to heavy-REE (HREE) and a positive Ce anomaly. Comparing REE patterns in particles from the upper water column (200 m) with those from depth (1000, 2000 m) during and following the
sedimentation pulse indicates that time is a key factor in determining REE scavenging by sinking particles. This is particularly evident for the preferential scavenging of Ce (IV) which is most pronounced in the finer, slowly sinking, and presumably older particles. These findings are consistent with REE patterns in sea water from the northwestern Mediterranean which show a strong negative Ce anomaly and gradual enrichment of REE with increasing atomic number. The enrichment of LREE relative to HREE in particles from deep waters results either preferential scavenging of LREE on particles, analogous to the enrichment of Ce, or selective dissolution of HREE in association with particle remineralization processes, or both; this aspect of REE behaviour merits further study
Characterization of EASIROC as Front-End for the readout of the SiPM at the focal plane of the Cherenkov telescope ASTRI
The Extended Analogue Silicon Photo-multiplier Integrated Read Out Chip,
EASIROC, is a chip proposed as front-end of the camera at the focal plane of
the imaging Cherenkov ASTRI SST-2M telescope prototype. This paper presents the
results of the measurements performed to characterize EASIROC in order to
evaluate its compliance with the ASTRI SST-2M focal plane requirements. In
particular, we investigated the trigger time walk and the jitter effects as a
function of the pulse amplitude. The EASIROC output signal is found to vary
linearly as a function of the input pulse amplitude with very low level of
electronic noise and cross-talk (<1%). Our results show that it is suitable as
front-end chip for the camera prototype, although, specific modifications are
necessary to adopt the device in the final version of the telescope.Comment: 21 pages, 14 figure
Origem dos filmes negros sobre património construído: diversos olhares
Os filmes negros desenvolvem-se sobre substrato granítico com morfologia idêntica ao mesmo. A sua eliminação requer métodos abrasivos e/ou químicos por forma a superar a impermeabilidade e dureza característica. A génese de formação dos filmes negros é o elemento fundamental para contribuir para a preservação e sustentabilidade do património construído granítico na perspectiva de minimizar o seu desenvolvimento. A composição dos filmes foi estudada mineralógica, química e biologicamente através da aplicação de técnicas analíticas como MEV-EDE, DRX e técnicas tradicionais de microbiologia. Finalmente, os resultados da pirólise analítica (Py-GC/MS) confirmaram os dados obtidos anteriormente.FC
Sturge-Weber syndrome: a report of 14 cases
Sturge-Weber-Krabe syndrome (SWS), also
known as encephalotrigeminalangiomatosis
and named the forthfacomatosis, recall the
names of the authors who first describedit in
its basic clinical, radiological andanatomopathological
aspects. We report here 14
cases of Sturge-Weber disease. In 6 of these,
despite what had been previously described in
literature, an extension of the angioma has
been noted in other parts of the body. The
study of these subjects stresses not only the
need for a pharmacological/neuropsychomotor
intervention, but alsothe need of a psychotherapeutic
approach, for the emotional and affective
implications thatcould derive from this
syndrome. The reported cases are similar to
those presented in literature for their main
features. In particular, two elements are interesting:
i) the exceptional diffusion of the red
nevousto the whole hemicorpo; and ii) the
evaluation of the way the patients live the disease,
which has not beenpreviously considered
in literature. We can conclude that SWS is a
multisystem disorder that requires the neurologist
to be aware of the possible endocrine,
psychiatric, ophthalmological, and other medical
issues that can arise and impact on the
neurological status of the patients.
and neuropsychomotor therapies,
but also a psychotherapeutic support to
patients. It should be noted that the literature
does not take psychotherapeutic support into
consideration
Fire impact and assessment of post-fire actions of a typical Mediterranean forest from SW Spain
Poster presentado en lal EGU General Assembly 2015, held 12-17 April, 2015 in Vienna, Austria. id.2248Wildfires may cause significant changes in soil physical and chemical properties. In addition, soil organic matter (SOM) content and chemical properties are usually affected by fire. Fire impacts may negatively affect soil health and quality, and induce or enhance runoff generation and, thereby, soil erosion risk and cause damages to the habitat of species. This fact is especially dramatic in Mediterranean ecosystems, where forest fires are a frequent phenomenon and restoration strategies are a key issue. The goals of this study are to determine: i) the immediate effects of fire on soil properties, including changes occurred in the quantity and quality of SOM and ii) the effect of post-fire actions on soil properties. In August 2012, a wildfire affected a forest area of approx. 90 ha in Montellano (Seville, SW Spain; longitude 37.00 º, latitude -5.56 º). This area is dominated by pines (Pinus pinaster and Pinus halepensis), and eucalypts (Eucaliptus globulus) with a Mediterranean climate. Dominant soil types are Rendzic Leptosols and Calcaric Haplic Regosols. It is a poorly limestone-developed soil (usually swallower than 25 cm). Four soil subsamples were collected 1 month and 25 months after fire within an area of approximately 200 m2. Subsamples were mixed together, homogenized, air-dried, crushed and sieved (2 mm). One control sample was collected in an adjacent area. The litter layer was removed by hand and studied separately. Branches, stems, bushes and plant residues on the fire-affected area were removed 16 months after the fire using heavy machinery as part of the post-fire management. The present research focuses on the study of the elemental composition (C, H and N) and physical properties (pH,
water holding capacity, electrical conductivity) of bulk soil samples, and on the spectroscopic analysis (FT-IR, 13C NMR) and analytical pyrolysis data obtained from bulk the oils and from the humic acid fraction. immediate effects of fire, including the charring of vegetation and litter, as the input of charred residues may contribute to increase the total amount of soil organic matter. The post-fire removal of vegetation probably contributed to an additional loss of soil material due to an increase of the erosion risk. In addition, preliminary results point out that the burnt soil is not being recovered to the pre-fire conditions at a molecular level neither in the elemental composition. Results of this study will constitute a valuable tool for stake holders and decision makers to avoid additional alterations caused by post fire management of fire affected forests.Peer Reviewe
- …
