2,811 research outputs found
Crecimiento postraumático en padres de niños y adolescentes con cáncer.
El cáncer puede provocar reacciones psicológicas
negativas. No obstante, la lucha al abordar los problemas
oncológicos también puede dar lugar a cambios
psicológicos positivos que demuestran la fortaleza del
ser humano, siendo una de ellas el crecimiento postraumático
(CPT). El objetivo de esta revisión narrativa fue
revisar y analizar los artículos, publicados durante los
años 2000 a 2018 y disponibles en distintas bases de
datos, sobre el CPT en padres y madres de niños y adolescentes
con cáncer en el ámbito pediátrico.
Se identificaron 20 estudios que incluían 2.422 sujetos,
mayoritariamente madres (n=1.788), y que analizaban
el CPT en función del parentesco, evolución y tipo
de enfermedad del hijo, así como factores predictores
del mismo. Tanto padres como madres, son capaces de
desarrollar CPT como consecuencia de la experiencia
del cáncer de sus hijos, siendo ellas quienes experimentan
mayores niveles. En comparación con otras muestras
como progenitores de niños con diabetes tipo I o
de niños sanos, o pacientes adultos con osteosarcoma,
los padres y madres de niños con cáncer refieren mayor
CPT. Asimismo, se observan factores que influyen en el
desarrollo del CPT, como el contexto cultural, el procesamiento
cognitivo, el ajuste a la enfermedad y ciertos
rasgos de personalidad.
La evidencia científica publicada avala la existencia
de CPT en madres y padres de hijos con cáncer. No
obstante, sería necesario realizar estudios objetivos,
longitudinales, con muestras homogéneas de mayor
tamaño, para diseñar intervenciones dirigidas a promocionar
ese CPT y no centrarse solo en los aspectos
negativos de la enfermedad.post-print213 K
Mitigación de impacto antrópico mediante estrategias de diseño: El caso del sistema lagunar interdunario asociado a la costa
The lack of knowledge of the complexity from the natural systems within the city generates
an irregular urban development because the cities grow without a coherent planning; those
issues develop problems like the ecological fragmentation, the social and cultural
decomposition, because these problems are being analyzed as an isolated element, without
noticing the relation between them.
Architecture needs to rethinks the role it plays in the environment in order to find a way to
equilibrate the natural stage with the artificial environment, making people a crucial player in
this process. The main objective of this research is to develop architectural design strategies
that promotes understanding of the complexity of the interdunal lagoon system associated
with the coast, as an starting point to mitigate the anthropic impact that the fragmentation
press in this and other natural systems, so we can make a way to generate habitability and a
community responsibility.
The main components of the Interdunal lagoon system are wetlands, these are surrounded
by sand dunes, those are connected with the coastal zone, this system is involved with many
biological cycles, and they are important to give natural services and resources to
populations, humanity is one of them, to make life affordable in the Sotavento zone, in the
state of Veracruz, México.
In the city of Veracruz, where the ecosystems have been pressing because of the anthropic
impact, we propose the development of a case study in a place where the urban area is
pressing an uncatalogued ecological patch, from the landscaping design perspective. In this
case and other ones that are being developing, we propose design elements to establish
strategies that will serve as an starting point to mitigate the damage that this absence of
knowledge of our environment has made, offering alternatives that allow the development of
infrastructure without risking the life of the ecosystems and the community.El desconocimiento de la complejidad de los sistemas naturales inmersos en la ciudad
genera que el crecimiento asentamientos humanos, urbanizaciones y desarrollos
inmobiliarios sea de forma irregular, sin planificación coherente con el entorno; lo que detona
la fragmentación ecológica y descomposición social y cultural, debido a que estas
situaciones son vistas como elementos aislados, sin tomar en cuenta la relación que estos
tienen entre sí.
El papel que juega la arquitectura debe replantearse para buscar equilibrio entre entornos
naturales y artificiales, haciendo participe a la población en el proceso. El objetivo principal
de esta investigación es desarrollar estrategias de diseño arquitectónico que promuevan el
entendimiento de la complejidad de los sistemas lagunares interdunarios asociados a la
costa, como punto de partida para la mitigación gradual del impacto antrópico en el proceso
de fragmentación que ejerce sobre éste y otros sistemas naturales, de tal manera que
mejore el equilibrio natural y que se pueda generar habitabilidad y una corresponsabilidad
en la comunidad.
En la ciudad de Veracruz, donde la presión antrópica sobre el ecosistema ha tenido un gran
impacto, se plantea el desarrollo de un caso de estudio desde la óptica del diseño de
paisaje, en una zona urbana que ejerce presión sobre un parche ecológico no catalogado.
En este y otros casos que se están desarrollando, se proponen elementos de diseño para
establecer estrategias que servirán como punto de partida para mitigar gradualmente el
daño que el desconocimiento de nuestro entorno ha provocado, ofreciendo alternativas que
permitan desarrollar infraestructura sin poner en riesgo los ecosistemas y a la población
Organic semiconductors: The effect of small modifications on device performance
Invited oral presentationIn the search on new high-mobiliity semiconductors with ambipolar performances, good processability and excellent environmental stability, diverse synthetic strategies have been approached. One of the most widely used consists in the alternation of donor and acceptor moieties in the conjugated skeleton, which allows fine tuning of the frontier molecular orbitals. For OTFT applications,low-lying HOMOs are essential to resist air oxidation and thus increase device stability. However, if the HOMO energy is too low, the resulting barrier to hole injection may compromise the transistor performance. Thus, a delicate balance between these two effects is needed. Furthermore, high performance solution-processable materials require the correct selection and positioning of the specific solubilizing substituents in order to achieve proper HOMO and LUMO energy levels, planar molecular conformations, close intermolecular pi-pi stacking, and proper thin film crystallinity. In this communication, several examples of molecular and polymeric materials where modifications on their conjugated skeletons, donor/acceptor subunits ratio and/or the selection of proper alkyl solubilizing chains induce noticeable changes in their electronic performances.Universidad de Málaga, Campus de Excelencia Internacional Andalucía Tec
Motion Detection by Microcontroller for Panning Cameras
Motion detection is the first essential process in the extraction of information regarding moving objects. The approaches based on background difference are the most used with fixed cameras to perform motion detection, because of the high quality of the achieved segmentation.
However, real time requirements and high costs prevent most of the algorithms proposed in literature to exploit the background difference
with panning cameras in real world applications. This paper presents a new algorithm to detect moving objects within a scene acquired by panning
cameras. The algorithm for motion detection is implemented on a Raspberry Pi microcontroller, which enables the design and implementation
of a low-cost monitoring system.Universidad de Málaga. Campus de Excelencia Internacional Andalucía Tech
Magnetic relaxation and magnetization field dependence measurements in La0.5Ca0.5MnO3
We reported a systematic change in the average magnetic relaxation rate,
after the application and removal of a 5 T magnetic field, in a polycrystalline
sample of La0.5Ca0.5MnO3. Magnetic relaxation measurements and magnetization
versus field curves were taken from 10 K to 160 K. The long time behavior of
the relaxation curves was approximately logarithmic in all cases. Keywords:
Charge Ordering, Relaxation, Magnetic measurementsComment: 2 figures, accepted to be presented in the International Conference
on Magnetism 2000 in Recife, also submitted to Journal of Magnetism and
Magnetic Material
Deep learning-based anomalous object detection system powered by microcontroller for PTZ cameras
Automatic video surveillance systems are usually designed to detect anomalous objects being present in a scene or behaving dangerously. In order to perform adequately, they must incorporate models able to achieve accurate pattern recognition
in an image, and deep learning neural networks excel at this task. However, exhaustive scan of the full image results in multiple image blocks or windows to analyze, which could make the time performance of the system very poor when implemented on low cost devices. This paper presents a system which attempts to
detect abnormal moving objects within an area covered by a PTZ camera while it is panning. The decision about the block of the image to analyze is based on a mixture distribution composed of two components: a uniform probability distribution, which
represents a blind random selection, and a mixture of Gaussian probability distributions. Gaussian distributions represent windows in the image where anomalous objects were detected previously and contribute to generate the next window to analyze close to those windows of interest. The system is implemented on
a Raspberry Pi microcontroller-based board, which enables the design and implementation of a low-cost monitoring system that is able to perform image processing.Universidad de Málaga. Campus de Excelencia Internacional Andalucía Tech
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