514 research outputs found
Aprendizaje de la programación guiado por los errores de compilación
Los errores de programación y en concreto los de
tiempo de compilación siempre han sido un área de
interés en el campo de la enseñanza de la
programación. Esto lo demuestran los distintos
artículos que aparecen periódicamente en congresos
de docencia de la informática, tanto nacionales como
internacionales. Estos estudios se basan en la relación
entre errores de programación y carencias
conceptuales o malas prácticas de programación, y
orientar a los docentes en las áreas y conceptos de
programación que se tendrían que reforzar en la
enseñanza de la programación. Sin embargo, estos
estudios se realizan siempre fuera del proceso de
aprendizaje de los estudiantes, con lo cual sólo se
extraen conclusiones generales para posteriores
cursos y sin poder proporcionar una realimentación
real e individualizada a los alumnos.
Hemos creado un sistema, denominado COLMENA
que se integra con el entorno de desarrollo integrado
para recopilar información sobre el análisis estático,
errores de compilación y warnings, que los
estudiantes generan durante un ejercicio de
programación. Además, esta información sobre
errores se visualiza a los usuarios clasificada por
familias de errores, sesiones de prácticas y alumnos.
Permitiendo al profesor realizar un seguimiento
completamente personalizado, para un grupo o un
alumno concreto. Por otra parte, facilita la
documentación de los distintos errores, estableciendo
una relación de estos con los conceptos de
programación y buenas prácticas relacionadas.
Además, permite a los alumnos darse cuenta de los
errores que cometen con más frecuencia y reforzar el
conocimiento de estos.
A través de esta herramienta, por tanto, se consigue
un flujo de intercambio de información que puede
ayudar a profesores y alumnos en la mejora del
proceso enseñanza-aprendizaje, y así perfeccionar
explícitamente detalles sobre pautas de programación
o conceptos relativos a la misma que antes no se
apreciaban o conocer la evolución de los errores de
un grupo a lo largo de una asignatura.SUMMARY -- Studies on errors in programming activities have
always been considered relevant among scientific
communities. Thus, different approaches are explored
every year in national and international conferences
about programming teaching and learning. All of
these studies deal with the relationship between
programming errors and bad habits in programming,
in order to generate guidance for teachers in concepts
where their students fail. However, these kinds of
studies are conducted outside the students' natural
programming process, which prevents teachers from
receiving a feedback report in real-time.
We have created an eclipse plug-in, called COLMENA,
whose purpose is to recover compilation
errors and warnings generated by the students during
programming lessons. Moreover, this information is
displayed in a specific portal where students can
retrieve information about the errors, their solutions
and different reports about individual and collective
information, such as specific groups or sessions
inside a subject. Students have the possibility to learn
about the solution to their most common errors in the
system or their top-10 error list.
Through COLMENA, we aim to assist teachers and
students with programming tips and ideas that generate
less errors and improve the teacher-learning
process. This kind of information, previously discarded,
allows us to gain a new perspective about the
problems that users have in a specific practical lesson
or in a whole subject
La imagen y la narrativa como herramientas para el abordaje psicosocial en escenarios de violencia. Departamento de Norte de Santander, Santander y Cesar
No aplicaPara determinar la violencia en Colombia se debe tener en cuenta el dolor, el sufrimiento y el daño que han tenido una cantidad considerable de personas. De esta manera, son las acciones desde lo psicosocial en los escenarios de violencia un instrumento que permitió desarrollar un trabajo social, desde la determinación la restauración y la paz en los diferentes territorios donde se vive la violencia y que ha dejado una huella marcada. Cada uno de los estudiantes realizo un análisis a partir de un abordaje psicosocial desde los diferentes casos, con base en la narrativa e imágenes donde se permite examinar las situaciones y emergentes psicosociales que la violencia ha causado. Por ende, las herramientas utilizadas permiten generar un importante acompañamiento en las personas que han sido víctimas que han sufrido conflicto armado, desplazamiento forzado, llevar así al fortalecimiento y la resiliencia individual y de su núcleo familiar, que permite y ayuda a mejorar la calidad y bienestar de vida. Entre los temas abordados está el de Shimaia y la masacre en El Salado, donde se pueden analizar los diferentes sucesos de violencia y expectativa desde una historia de vida, y como desde cada evento traumático existe una forma de resarcirse. Para lograr generar fortalecimiento en las diferentes situaciones como lo fue la masacre en El Salado, se desarrollaron estrategias desde la perspectiva de acción psicosocial, que permiten ayudar en las víctimas y sobrevivientes afrontar situaciones difíciles y poder resistir el trauma a nivel psicológico ocasionado por el conflicto.To determine violence in Colombia, the pain, suffering and damage that a considerable number of people have had must be taken into account. In this way, psychosocial actions in scenarios of violence are an instrument that allowed the development of social work, from determination, restoration and peace in the different territories where violence is experienced and that has left a marked mark. Each of the students carried out an analysis based on a psychosocial approach from the different cases, based on the narrative and images where it is possible to examine the psychosocial situations and emergencies that violence has caused. Therefore, the tools used make it possible to generate important support for people who have been victims who have suffered armed conflict, forced displacement, thus leading to the strengthening and resilience of the individual and their family, which allows and helps to improve the quality and well-being of life. Among the topics addressed is that of Shimaia and the massacre in El Salado, where the different events of violence and expectations can be analyzed from a life story, and how from each traumatic event there is a way to compensate. In order to generate strengthening in different situations such as the massacre in El Salado, strategies were developed from the perspective of psychosocial action, which allow victims and survivors to face difficult situations and be able to resist the psychological trauma caused by the conflict
PRACTICE FREQUENCY AND REASONS FOR PARTICIPATION IN PHYSICAL ACTIVITIES IN GENDER AND AGE FUNCTION OF 13-14 YEARS OLD SCHOOLCHILDREN FROM MELILLA
El presente artículo expone los resultados de un estudio dirigido a conocer la influencia del género y el curso en la frecuencia semanal y diaria de práctica de actividad física (AF), así como en los motivos de práctica de AF que manifiestan escolares de 13-14 años de Melilla. Los participantes han sido 548 escolares (267 chicos y 281 chicas) de los cursos, 1º y 2º (13 - 14 años) de cuatro centros de Educación Secundaria Obligatoria de Melilla. Los datos se han recogido a través del cuestionario de “Hábitos de participación en Actividades Físicas”. Los resultados muestran la existencia de diferencias significativas en función del género tanto en los niveles de participación como en la importancia que conceden a los motivos que le llevan a participar en AF y en virtud de la variable curso, siendo los alumnos de 2º los que presentan niveles más bajos de participación y menor valoración de los motivos principales para la participación en AF, resultados similares a los hallados en estudios anteriores en otros contextos nacionales e internacionales.This paper presents the results of a study to determine the influence of gender and grade on weekly and daily physical activity, as well as the reasons for physical activity to show students 13-14 years of Melilla. Participants were 548 students (267 boys and 281 girls) in grade 1st and 2nd (13 - 14 years) from four secondary schools in Melilla. Data were collected through the questionnaire of "Habits of participation in Physical Activity." The results show the significant differences by gender in both participation levels and the importance of the reasons that made you take part in physical and sports activities. Also found significant differences under variable grade, with the 2nd grade students who have lower levels of participation and lower valuation of the main reasons for participation in physical activities, results similar to those found in previous studies other national and international contexts
EZH2 endorses cell plasticity to non-small cell lung cancer cells facilitating mesenchymal to epithelial transition and tumour colonization
CGL was funded by the Consejería de Salud y Familias, Junta de Andalucía (RH-0139-2020) and SG-P is funded by Instituto de Salud Carlos III (CP19/00029, PI15/00336, PI19/01533). JAM is supported by RTI2018.101309B-C22 funded by MCIN/AEI/10.13039/501100011033/FEDER “Una manera de hacer Europa” and by the Chair “Doctors Galera-Requena in cancer stem cell research”. PCS is funded by Ministerio de Ciencia e Innovación (grant PID2020-119032RB-I00) and FEDER/Junta de Andalucía-Consejería de Transformación Económica, Industria, Conocimiento y Universidades (grants P20_00335 and B‐CTS‐40‐UGR20). The Landeira lab is supported by the Spanish ministry of science and innovation (PID2019-108108-100, EUR2021-122005), the Andalusian regional government (PC-0246-2017, PIER-0211-2019, PY20_00681) and the University of Granada (A-BIO-6-UGR20) grants.Reversible transition between the epithelial and mesenchymal states are key aspects of carcinoma cell dissemination and the metastatic disease, and thus, characterizing the molecular basis of the epithelial to mesenchymal transition (EMT) is crucial to find druggable targets and more effective therapeutic approaches in cancer. Emerging studies suggest that epigenetic regulators might endorse cancer cells with the cell plasticity required to conduct dynamic changes in cell state during EMT. However, epigenetic mechanisms involved remain mostly unknown. Polycomb Repressive Complexes (PRCs) proteins are well-established epigenetic regulators of development and stem cell differentiation, but their role in different cancer systems is inconsistent and sometimes paradoxical. In this study, we have analysed the role of the PRC2 protein EZH2 in lung carcinoma cells. We found that besides its described role in CDKN2A-dependent cell proliferation, EZH2 upholds the epithelial state of cancer cells by repressing the transcription of hundreds of mesenchymal genes. Chemical inhibition or genetic removal of EZH2 promotes the residence of cancer cells in the mesenchymal state during reversible epithelial–mesenchymal transition. In fitting, analysis of human patient samples and tumour xenograft models indicate that EZH2 is required to efficiently repress mesenchymal genes and facilitate tumour colonization in vivo. Overall, this study discloses a novel role of PRC2 as a master regulator of EMT in carcinoma cells. This finding has important implications for the design of therapies based on EZH2 inhibitors in human cancer patients.Junta de Andalucía (RH-0139-2020)Instituto de Salud Carlos III (CP19/00029, PI15/00336, PI19/01533)MCIN/AEI/10.13039/501100011033/FEDER “Una manera de hacer Europa” RTI2018.101309B-C22Chair “Doctors Galera-Requena in cancer stem cell research”Ministerio de Ciencia e Innovación (grant PID2020-119032RB-I00)FEDER/Junta de Andalucía-Consejería de Transformación Económica, Industria, Conocimiento y Universidades (grants P20_00335 and B‐CTS‐40‐UGR20)Spanish ministry of science and innovation (PID2019-108108-100, EUR2021-122005)Andalusian regional government (PC-0246-2017, PIER-0211-2019, PY20_00681)University of Granada (A-BIO-6-UGR20
Mental health data available in representative surveys conducted in Latin America and the Caribbean countries: a scoping review
Background:
Mental health data from Latin America and the Caribbean countries (LACC) national and international surveys are essential for public health surveillance. This review aimed to identify and describe available mental health survey data in LACC, providing access details for researchers.
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Methods:
Our study was a scoping review. The search for available mental health survey data was conducted in PubMed and through grey literature searches, and the search dates were between 26 August 2021 and 15 October 2021. Included survey data were/had (1) nationally representative, (2) the latest version available from 2012 onward, (3) collected in at least one LACC and (4) at least one mental health variable or related factor. We accepted all written languages, including Spanish and English.
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Results:
A total of 56 national and 13 international surveys were included, with data available on 95 mental health variables classified into 10 categories. Most national surveys were performed in upper-middle-income countries. Variables categorised as ‘Substance use’ and ‘Violence’ were the most frequent. Mexico and Colombia had the highest production in both the national and international surveys. The main target population was the adult population. However, there are several mental health topics and LACC yet unsurveyed.
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Conclusion:
We identified a total of 69 representative surveys from LACCs since 2012. We categorised the available data on mental health variables into 10 categories, and provided technical details to facilitate the future selection and use of these surveys
Measurement of the cosmic ray spectrum above eV using inclined events detected with the Pierre Auger Observatory
A measurement of the cosmic-ray spectrum for energies exceeding
eV is presented, which is based on the analysis of showers
with zenith angles greater than detected with the Pierre Auger
Observatory between 1 January 2004 and 31 December 2013. The measured spectrum
confirms a flux suppression at the highest energies. Above
eV, the "ankle", the flux can be described by a power law with
index followed by
a smooth suppression region. For the energy () at which the
spectral flux has fallen to one-half of its extrapolated value in the absence
of suppression, we find
eV.Comment: Replaced with published version. Added journal reference and DO
Energy Estimation of Cosmic Rays with the Engineering Radio Array of the Pierre Auger Observatory
The Auger Engineering Radio Array (AERA) is part of the Pierre Auger
Observatory and is used to detect the radio emission of cosmic-ray air showers.
These observations are compared to the data of the surface detector stations of
the Observatory, which provide well-calibrated information on the cosmic-ray
energies and arrival directions. The response of the radio stations in the 30
to 80 MHz regime has been thoroughly calibrated to enable the reconstruction of
the incoming electric field. For the latter, the energy deposit per area is
determined from the radio pulses at each observer position and is interpolated
using a two-dimensional function that takes into account signal asymmetries due
to interference between the geomagnetic and charge-excess emission components.
The spatial integral over the signal distribution gives a direct measurement of
the energy transferred from the primary cosmic ray into radio emission in the
AERA frequency range. We measure 15.8 MeV of radiation energy for a 1 EeV air
shower arriving perpendicularly to the geomagnetic field. This radiation energy
-- corrected for geometrical effects -- is used as a cosmic-ray energy
estimator. Performing an absolute energy calibration against the
surface-detector information, we observe that this radio-energy estimator
scales quadratically with the cosmic-ray energy as expected for coherent
emission. We find an energy resolution of the radio reconstruction of 22% for
the data set and 17% for a high-quality subset containing only events with at
least five radio stations with signal.Comment: Replaced with published version. Added journal reference and DO
Measurement of the Radiation Energy in the Radio Signal of Extensive Air Showers as a Universal Estimator of Cosmic-Ray Energy
We measure the energy emitted by extensive air showers in the form of radio
emission in the frequency range from 30 to 80 MHz. Exploiting the accurate
energy scale of the Pierre Auger Observatory, we obtain a radiation energy of
15.8 \pm 0.7 (stat) \pm 6.7 (sys) MeV for cosmic rays with an energy of 1 EeV
arriving perpendicularly to a geomagnetic field of 0.24 G, scaling
quadratically with the cosmic-ray energy. A comparison with predictions from
state-of-the-art first-principle calculations shows agreement with our
measurement. The radiation energy provides direct access to the calorimetric
energy in the electromagnetic cascade of extensive air showers. Comparison with
our result thus allows the direct calibration of any cosmic-ray radio detector
against the well-established energy scale of the Pierre Auger Observatory.Comment: Replaced with published version. Added journal reference and DOI.
Supplemental material in the ancillary file
Obstetric outcomes of sars-cov-2 infection in asymptomatic pregnant women
Altres ajuts: Fondo Europeo de Desarrollo Regional (FEDER)Around two percent of asymptomatic women in labor test positive for severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) in Spain. Families and care providers face childbirth with uncertainty. We determined if SARS-CoV-2 infection at delivery among asymptomatic mothers had different obstetric outcomes compared to negative patients. This was a multicenter prospective study based on universal antenatal screening for SARS-CoV-2 infection. A total of 42 hospitals tested women admitted for delivery using polymerase chain reaction, from March to May 2020. We included positive mothers and a sample of negative mothers asymptomatic throughout the antenatal period, with 6-week postpartum follow-up. Association between SARS-CoV-2 and obstetric outcomes was evaluated by multivariate logistic regression analyses. In total, 174 asymptomatic SARS-CoV-2 positive pregnancies were compared with 430 asymptomatic negative pregnancies. No differences were observed between both groups in key maternal and neonatal outcomes at delivery and follow-up, with the exception of prelabor rupture of membranes at term (adjusted odds ratio 1.88, 95% confidence interval 1.13-3.11; p = 0.015). Asymptomatic SARS-CoV-2 positive mothers have higher odds of prelabor rupture of membranes at term, without an increase in perinatal complications, compared to negative mothers. Pregnant women testing positive for SARS-CoV-2 at admission for delivery should be reassured by their healthcare workers in the absence of symptoms
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