1,096 research outputs found
Language Modeling by Clustering with Word Embeddings for Text Readability Assessment
We present a clustering-based language model using word embeddings for text
readability prediction. Presumably, an Euclidean semantic space hypothesis
holds true for word embeddings whose training is done by observing word
co-occurrences. We argue that clustering with word embeddings in the metric
space should yield feature representations in a higher semantic space
appropriate for text regression. Also, by representing features in terms of
histograms, our approach can naturally address documents of varying lengths. An
empirical evaluation using the Common Core Standards corpus reveals that the
features formed on our clustering-based language model significantly improve
the previously known results for the same corpus in readability prediction. We
also evaluate the task of sentence matching based on semantic relatedness using
the Wiki-SimpleWiki corpus and find that our features lead to superior matching
performance
Superior Facial Expression, But Not Identity Recognition, in Mirror-Touch Synesthesia
Simulation models of expression recognition contend that to understand another's facial expressions, individuals map the perceived expression onto the same sensorimotor representations that are active during the experience of the perceived emotion. To investigate this view, the present study examines facial expression and identity recognition abilities in a rare group of participants who show facilitated sensorimotor simulation (mirror-touch synesthetes). Mirror-touch synesthetes experience touch on their own body when observing touch to another person. These experiences have been linked to heightened sensorimotor simulation in the shared-touch network (brain regions active during the passive observation and experience of touch). Mirror-touch synesthetes outperformed nonsynesthetic participants on measures of facial expression recognition, but not on control measures of face memory or facial identity perception. These findings imply a role for sensorimotor simulation processes in the recognition of facial affect, but not facial identity
El cine como recurso pedagógico en el aprendizaje significativo en los estudiantes de la Universidad Científica del Sur, 2017 - 2
La presente investigación es acerca de la posibilidad de utilizar el cine como un recurso pedagógico con miras a lograr un entorno de aprendizaje significativo, en los estudiantes del curso de Marketing Global de la Facultad de Gestión Empresarial de la Universidad Científica del Sur, 2017-2. Corresponde a una investigación con enfoque cuantitativo de alcance descriptivo y diseño preexperimental, con una muestra no probabilística, intencional. Las técnicas aplicadas fueron la observación y el análisis documental, empleando como instrumentos la lista de cotejo con escala de Likert. Los resultados obtenidos permitieron explicar los hechos o fenómenos que influyeron en el desarrollo del proceso de aprendizaje significativo en base a un currículo por competencias. Se concluyó comprobando que la aplicación del cine como recurso pedagógico incide de forma altamente positiva en el aprendizaje significativo de los estudiantes del curso de Marketing Global de la Universidad Científica del Sur, 2017-2.Trabajo de investigaciónCampus Lima Centr
MOZ-mediated repression of p16(INK) (4) (a) is critical for the self-renewal of neural and hematopoietic stem cells
Although inhibition of p16(INK4a) expression is critical to preserve the proliferative capacity of stem cells, the molecular mechanisms responsible for silencing p16(INK4a) expression remain poorly characterized. Here, we show that the histone acetyltransferase (HAT) monocytic leukemia zinc finger protein (MOZ) controls the proliferation of both hematopoietic and neural stem cells by modulating the transcriptional repression of p16(INK4a) . In the absence of the HAT activity of MOZ, expression of p16(INK4a) is upregulated in progenitor and stem cells, inducing an early entrance into replicative senescence. Genetic deletion of p16(INK4a) reverses the proliferative defect in both Moz(HAT) (-) (/) (-) hematopoietic and neural progenitors. Our results suggest a critical requirement for MOZ HAT activity to silence p16(INK4a) expression and to protect stem cells from early entrance into replicative senescence
Expression of the MOZ-TIF2 oncoprotein in mice represses senescence
The MOZ-TIF2 translocation, which fuses monocytic leukemia zinc finger protein (MOZ) histone acetyltransferase (HAT) with the nuclear co-activator TIF2, is associated with the development of acute myeloid leukemia. We recently found that in the absence of MOZ HAT activity, p16INK4a transcriptional levels are significantly increased, triggering an early entrance into replicative senescence. Because oncogenic fusion proteins must bypass cellular safeguard mechanisms, such as senescence and apoptosis, to induce leukemia, we hypothesized that this repressive activity of MOZ over p16INK4a transcription could be preserved, or even reinforced, in MOZ leukemogenic fusion proteins, such as MOZ-TIF2. We describe here that, indeed, MOZ-TIF2 silences expression of the CDKN2A locus (p16INK4a and p19ARF), inhibits the triggering of senescence and enhances proliferation, providing conditions favorable to the development of leukemia. Furthermore, we describe that abolishing the MOZ HAT activity of the fusion protein leads to a significant increase in expression of the CDKN2A locus and the number of hematopoietic progenitors undergoing senescence. Finally, we report that inhibition of senescence by MOZ-TIF2 is associated with increased apoptosis, suggesting a role for the fusion protein in p53 apoptosis-versus-senescence balance. Our results underscore the importance of the HAT activity of MOZ, preserved in the fusion protein, for repression of the CDKN2A locus transcription and the subsequent block of senescence, a necessary step for the survival of leukemic cells.Work in our laboratory is supported by the Leukemia and Lymphoma
Research Foundation (LLR), Cancer Research UK
(CRUK), and the Biotechnology and Biological Sciences
Research Council (BBSRC)
Developing an e-infrastructure for social science
We outline the aims and progress to date of the National Centre for e-Social
Science e-Infrastructure project. We examine the challenges faced by the project, namely in
ensuring outputs are appropriate to social scientists, managing the transition from research
projects to service and embedding software and data within a wider infrastructural
framework. We also provide pointers to related work where issues which have ramifications
for this and similar initiatives are being addressed
Posicionamiento de marca del hospedaje Canchis en el distrito Pomacanchi en la provincia de Acomayo, Cusco 2022
De acuerdo al trabajo de investigación cuyo título es “Posicionamiento de marca del
hospedaje Canchis en el distrito Pomacanchi en la provincia de Acomayo, Cusco 2022” que se
identificó y desarrollo el objetivo general describir el posicionamiento de marca del hospedaje
Canchis en el distrito Pomacanchi en la provincia de Acomayo, Cusco 2022; es así que
metodológicamente la investigación fue de tipo básica, con enfoque cuantitativo, de diseño no
experimental, con alcance descriptivo-transversal. Con una población de 1920 huéspedes del
distrito de Pomacanchi obtenida dicha cantidad según el registro de huéspedes en el 2021, y
como tipo de muestreo fue de tipo probabilístico teniendo un resultado de acuerdo a la fórmula
para muestras finitas de 321 huéspedes. Procesada y analizada la información recogida de la
muestra a través de la encuesta se concluyó que en relación a la variable posicionamiento de
marca el 41.5% se considera como inadecuado, el 27.6% regular y el 30.9% siendo adecuado,
considerando que el posicionamiento de marca del hospedaje no logra tener un impacto en la
mente de la población y como recomendación para poder solucionar este problema es
desarrollar un plan de marca, estableciendo estrategias como el uso de la tecnología para que
el hospedaje pueda hacerse conocido en la Canchis y posteriormente en la región del Cusco.According to the research work whose title is "Brand positioning of the Canchis lodging
in the Pomacanchi district in the province of Acomayo, Cusco 2022" that the general objective
was identified and developed to describe the brand positioning of the Canchis lodging in the
Pomacanchi district in the province of Acomayo, Cusco 2022; Thus, methodologically, the
research was of a basic type, with a quantitative approach, of a non-experimental design, with
a descriptive-transversal scope. With a population of 1920 guests from the Pomacanchi district,
said amount was obtained according to the guest registry in 2021, and as a type of sampling it
was probabilistic, having a result according to the formula for finite samples of 321 guests.
After processing and analyzing the information collected from the sample through the survey,
it was concluded that in relation to the brand positioning variable, 41.5% are considered
inadequate, 27.6% regular, and 30.9% being adequate, considering that brand positioning of
the lodging does not manage to have an impact on the minds of the population and as a
recommendation to be able to solve this problem is to develop a brand plan, establishing
strategies such as the use of technology so that the lodging can become known in the Canchis
and later in the Cusco region.Mercadotecni
Patterns in Deep Time
In this paper, we explore how textile pattern-making can be a useful activity
for live coders used to manipulating software. We ran an algorithmic patterns
workshop in July 2022 -- with a node at "on the fly" festival in Barcelona, a
node in Sheffield and the workshop leader in Penryn -- where we created an
activity recreating ancient patterns by weaving on tablet looms that we
constructed from card and yarn, and sent to the participants for this remote,
multi location workshop. One of the aims of the Algorithmic Pattern project is
to highlight the relationship people have had with patterns over history, and
how we can use this to uncover certain misconceptions we have about algorithmic
patterns in contemporary society. We collected responses from those who
participated in the workshop and collated the responses. We found that tablet
weaving allows us to connect the physical patterns with their algorithmic
descriptions. Also, errors relate with the trade-off among expectations and
surprise and exploring new unexpected possibilities. Finally, sharing the
experiences among the participants allows us to observe how we interpret
patterns when comparing it with other experiences
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