69 research outputs found
Impacto de las estrategias didácticas implementadas en lengua castellana a estudiantes de grado primero en tiempos de COVID-19
Ante el cierre preventivo de instituciones escolares producto de la emergencia por COVID-19, cientos de países definieron un plan para que la educación no se detenga. Sin embargo, asegurar la continuidad en el proceso educativo no es simple y lleva implícito grandes desafíos para docentes, padres de familia, cuidadores y estudiantes; aunque existen recomendaciones el tema se reconoce como “abierto” y lejos aún de evidencias concluyentes que puedan orientar las acciones pedagógicas, (Pimentel, 2020) el panorama de las políticas educativas se describe como emergente y fluido, la evidencia y documentación es poca generalmente carece de detalles, lo que hace difícil determinar que funciona y que no en esta etapa (Jyones Gibbs, Sims, Rodnet y 2020).
En este contexto la investigación recogió información sobre el impacto de las estrategias didácticas implementadas por los docentes de la Institución Educativa Cedid Ciudad Bolívar Sede C Jornada Tarde a los estudiantes de grado 102 durante el confinamiento por COVID-19 en el II y III periodo académico 2020. De los resultados surgió una descripción de las herramientas utilizadas para la enseñanza y el aprendizaje orientadas a dar continuidad a la educación para ello los docentes combinaron estrategias tradicionales y digitales de segunda y tercera generación.
De otro lado se encontró que las principales problemáticas a las que se enfrentaron son logísticas, tecnológicas y socioafectivas. En cuanto al uso de la tecnología para la comunicación utilizaron WhatsApp, para su trabajo académico Google Classroom, Wixsite y la plataforma institucional, para trabajo sincrónico las plataformas Zoom, Teams y Meet. La mayoría de los docentes refieren requerir apoyo tecnológico y asesoría didáctica para continuar los procesos académicos. (apartes del texto)Facing the preventive closure of school institutions as a result of the COVID-19 emergency, hundreds of countries defined a plan so that education does not stop. However, ensuring continuity in the educational process is not that simple and it implies great challenges for teachers, parents, caregivers and students. Although there are some recommendations, the subject is recognized as "open" and still far from conclusive evidence that can guide pedagogical actions, the panorama of educational policies is described as emerging and fluid, the evidence and documentation is scarce, generally lacks details, which makes hard to determine what works and what doesn't at this point.
Having this in mind, this research collected information on the impact of the didactic strategies implemented by the teachers of the “Institución Educativa Cedid Ciudad Bolívar Sede C Jornada Tarde” to the students of grade 102 during the confinement by COVID-19 in the II and III academic period of2020. As a result, a description of the tools used for teaching and learning surged and this aimed at providing continuity to education, this is why the teachers combined traditional and digital second and third generation strategies.
On the other hand, it was found that the main problems the teachers faced are logistical, technological and socio-affective. Regarding the use of technology for communication, they used WhatsApp, for their academic work Google Classroom, Wixsite and the institutional platform, for synchronous work the Zoom, Teams and Meet platforms. Most of the teachers report requiring technological support and didactic advice to continue the academic processes.Fundación Universitaria Los Libertadore
Jóvenes, pandemia y amor
Treball Final de Grau en Periodisme. Codi: PE0932. Curs acadèmic: 2020/2021Our report "Youth, pandemic and love" talks about love in times of pandemic.
Throughout all this time, we have seen how data on deaths, the economic impact or
the management of public health in this health crisis, have been the negative
collateral damage that has monopolized all the news. However, many other negative
consequences that this pandemic has caused have not been as important as they
deserve. One of them is, in the most social aspect, love. On our topic, love in times
of pandemic, we have seen a lack of information about it. For this reason, we wanted
to investigate the subject, emphasizing what has happened to love as a couple and
how we relate to each other now. As young people we feel harmed by the lack of
information about what has happened to love during confinement, how all those
people who have not had a partner in that period of time have experienced it, or in
what way it has harmed or not couples who have spent confinement both in the
same house and separately. But, above all, we find a lack of information on what is
going to happen with love from now on, how we relate to so many restrictions and
how we are going to meet new people without risk of contagion. It should be noted
that we focus on a young target audience, of people between 15 and 30 years old.
The main reason that leads us to narrow our target audience at this age is that, as
young people, we feel harmed by this problem, and we believe it is necessary to
carry out a report showing all the consequences that the pandemic has caused in
love. Thus, with this report focused on young people, we intend to provide a new
vision from the point of view of young people, in a closer and more direct way. In
addition, this age group is when love is most experienced. Meeting people in discos,
touching each other, seeing each other freely, have been many of the things that
have been prohibited during the year and a half of the pandemic. And we do not
know if we will be able to carry them out again or in how long. Therefore, it is a time
lost in the experimentation of love and that has had its repercussion especially in
young people.
Regarding the news of this report, it should be noted that it is a contemporary issue
that, to this day, we still continue to suffer. The importance of this report is undoubted
since we are going through an unknown situation for our society. As future
professionals in the field of information and communication, we believe that it is
Autoras: Raquel Jerez y Alba María Lluesma Tutor: Abel Campos
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Jóvenes, pandemia y amor
essential to speak about all possible issues that concern the population and give
voice to problems that affect society. As young people, we consider that it is also
convenient not to forget our generation, which, although it is one of the most
prepared and informed, is one of those that also raises the most doubts and who
most demands answers and solutions.
If we talk about love we always think about banal things, but nothing is further from
reality, love is a fundamental piece in our lives. We are increasingly discovering what
love is, that there are many different and valid types of love, as well as the
importance of love in our personal lives and as a society. So, with our report we
wanted to focus on love, focusing on love as a couple in youth.
Within the theme of love in times of pandemic, first of all, we wanted to limit our work
on how love is lived in a target audience of young people between 15 and 30 years
old. Secondly, we have focused our work on love as a couple, involving young
people who have gone through confinement with their partner, separated from her,
as well as people who have gone through confinement without a partner.
The assembly phase has been carried out entirely with the Adobe Premiere Pro,
version 14 editing program. The first technique we have used is to set the video
sequence to a Sony XDCAM HD422 1080 PAL editing mode.
In order to give it more movement and variety, we have used techniques such as
time lapse, stop motion and multiscreen. With this we use three different ways of
editing and that differ from the rest of the effects and elements of the montage that
we have used during the edition. The objective of using these effects is to give more
speed and dynamism to the video, as well as a greater agility to the shots.
In general, we have used a direct cut as a step between sequences and scenes,
since it does not seem necessary to reload our report with transitions. The use of the
"multiscreen" we have used as a resource plan before presenting the protagonists of
the report, both couples and single people, and also the random people we have
asked on the street. To correct the blurring of an image we have decided to use the
"unsharp mask" video effect with quantity values of 50% and radius values of 50%.
Autoras: Raquel Jerez y Alba María Lluesma Tutor: Abel Campos
45
Jóvenes, pandemia y amor
Thus, to solve the cuts in the interviews we have applied the video transition
«dissolve» → «transformation cut».
With regard to color, it must be said that in the recording phase we always took into
account the same values in the camera so as not to have too many mismatches
later. Of course, each scenario was different so many times the values had to be
adapted and we did so. Even so, in this post-production phase we have had to
perform some color correction task, to correct any imperfection. To do this, we have
used automatic basic color correction in the lumetri color adjustments. From there,
we have also made manual adjustments, to give more warmth to the images and to
retouch the light left by the spotlights, as well as some burnt backgrounds.
As for the sound, we have made use of a sound overlap. That is to say, when the
word was heard, the base of the song used progressively lowered and when there
was no word the song was raised gradually as well. We have also made use of the
"repair" effect from the window option, in the essential sound section. From there we
have removed all the ambient sound that could sneak in, such as the air, the birds,
the murmur of the people, etc.
Our target audience is young people, specifically those in the 15 to 30 age range.
According to the Youth Report carried out in 2020 by the Ministry of Social Law and
the 2030 Agenda, today's young people are digital natives, “which implies that they
have developed great familiarity with online environments, which they use to inform
themselves, study, interact, buy and entertain themselves ”, so our report would be
broadcast on digital platforms.
The two options for digital platforms belong to RTVE. We want to bet on this public
channel, since we think that they are not subject to political ideals. We also want to
make use of this public tool, since it also belongs to us. The first option would be
Playz, RTVE's online content platform. It is aimed especially at a young audience
and hence the reason for its name 'Playz', since it refers to generation Z, those
people born between 1995 and 2015 approximately. A second option would be Lab
RTVE, the audiovisual innovation laboratory of Radio Televisión Española. We
believe that our report could fit into this format, as similar products are disseminated
Autoras: Raquel Jerez y Alba María Lluesma Tutor: Abel Campos
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Jóvenes, pandemia y amor
and the possibilities offered by the Internet are explored. We also opted for the
broadcast of the report on our Valencian public television, À Punt Mèdia.
Regarding the strengths of our report, it should be noted that, without any doubt, it is
a current and innovative topic. To this day we are still immersed in the last throes of
a pandemic that has made us rethink many things, including love. Our report also
stands out for its closeness to young and spontaneous sources who shamelessly
expose what worries them and ask themselves the same questions as so many
other young people.
Regarding the weak points of our report, mainly, we can say that since it is a topic
that has not been covered in depth, we had little such concrete expert information.
We also find it difficult to focus on the subject since, being such a broad subject with
so many aspects and that it could be approached from different and different
perspectives, many times the subject could go to another problem. That is, love is
very diverse, there is love as a couple, love for your family, friends, self-love, etc. For
love as a couple we have the expert sources explained above but we could have
also spoken with philosophers, writers, sex educators, to give you another point of
view. Within love as a couple, other interesting topics arose to deal with, such as
separations in confinement, violence in the couple, etc. Therefore, many times the
information that we obtained and found could make us change the focus of our
report almost without realizing it
Explainable clinical coding with in-domain adapted transformers
Background and Objective: Automatic clinical coding is a crucial task in the process of extracting relevant in-formation from unstructured medical documents contained in Electronic Health Records (EHR). However, most of the existing computer-based methods for clinical coding act as “black boxes”, without giving a detailed description of the reasons for the clinical-coding assignments, which greatly limits their applicability to real-world medical scenarios. The objective of this study is to use transformer-based models to effectively tackle explainable clinical-coding. In this way, we require the models to perform the assignments of clinical codes to medical cases, but also to provide the reference in the text that justifies each coding assignment. Methods: We examine the performance of 3 transformer-based architectures on 3 different explainable clinical-coding tasks. For each transformer, we compare the performance of the original general-domain version with an in-domain version of the model adapted to the specificities of the medical domain. We address the explainable clinical-coding problem as a dual medical named entity recognition (MER) and medical named entity normal-ization (MEN) task. For this purpose, we have developed two different approaches, namely a multi-task and a hierarchical-task strategy. Results: For each analyzed transformer, the clinical-domain version significantly outperforms the corresponding general domain model across the 3 explainable clinical-coding tasks analyzed in this study. Furthermore, the hierarchical-task approach yields a significantly superior performance than the multi-task strategy. Specifically, the combination of the hierarchical-task strategy with an ensemble approach leveraging the predictive capa-bilities of the 3 distinct clinical-domain transformersFunding for open access charge: Universidad de Málaga / CBUA. The authors thankfully acknowledge the computer resources, technical expertise and assistance provided by the SCBI (Supercomputing and Bioinformatics) center of the University of Málaga
Clinical text classification in Cancer Real-World Data in Spanish
Healthcare systems currently store a large amount of clinical data, mostly unstructured textual information, such as electronic health records (EHRs). Manually extracting valuable information from these documents is costly for healthcare professionals. For example, when a patient first arrives at an oncology clinical analysis unit, clinical staff must extract information about the type of neoplasm in order to assign the appropriate clinical specialist. Automating this task is equivalent to text classification in natural language processing (NLP). In this study, we have attempted to extract the neoplasm type by processing Spanish clinical documents. A private corpus of 23, 704 real clinical cases has been processed to extract the three most common types of neoplasms in the Spanish territory: breast, lung and colorectal neoplasms. We have developed methodologies based on state-of-the-art text classification task, strategies based on machine learning and bag-of-words, based on embedding models in a supervised task, and based on bidirectional recurrent neural networks with convolutional layers (C-BiRNN). The results obtained show that the application of NLP methods is extremely helpful in performing the task of neoplasm type extraction. In particular, the 2-BiGRU model with convolutional layer and pre-trained fastText embedding obtained the best performance, with a macro-average, more representative than the micro-average due to the unbalanced data, of 0.981 for precision, 0.984 for recall and 0.982 for F1-score.The authors acknowledge the support from the Ministerio de Ciencia e Innovación (MICINN) under project PID2020-116898RB-I00, from Universidad de Málaga and Junta de Andalucía through grants UMA20-FEDERJA-045 and PYC20-046-UMA (all including FEDER funds), and from the Malaga-Pfizer consortium for AI research in Cancer - MAPIC. Universidad de Málaga. Campus de Excelencia Internacional Andalucía Tech
Detection of tumor morphology mentions in clinical reports in spanish using transformers
The aim of this study is to systematically examine the performance of transformer-based models for the detection of tumor morphology mentions in clinical documents in Spanish. For this purpose, we analyzed 3 transformer models supporting the Spanish language, namely multilingual BERT, BETO and XLM-RoBERTa. By means of a transfer- learning-based approach, the models were first pretrained on a collection of real-world oncology clinical cases with the goal of adapting trans- formers to the distinctive features of the Spanish oncology domain. The resulting models were further fine-tuned on the Cantemist-NER task, addressing the detection of tumor morphology mentions as a multi-class sequence-labeling problem. To evaluate the effectiveness of the proposed approach, we compared the obtained results by the domain-specific ver- sion of the examined transformers with the performance achieved by the general-domain version of the models. The results obtained in this pa- per empirically demonstrated that, for every analyzed transformer, the clinical version outperformed the corresponding general-domain model on the detection of tumor morphology mentions in clinical case reports in Spanish. Additionally, the combination of the transfer-learning-based approach with an ensemble strategy exploiting the predictive capabilities of the distinct transformer architectures yielded the best obtained results, achieving a precision value of 0.893, a recall of 0.887 and an F1-score of 0.89, which remarkably surpassed the prior state-of-the-art performance for the Cantemist-NER task
Classical BSE dismissed as the cause of CWD in Norwegian red deer despite strain similarities between both prion agents
The first case of CWD in a Norwegian red deer was detected by a routine ELISA test and confirmed by western blotting and immunohistochemistry in the brain stem of the animal. Two different western blotting tests were conducted independently in two different laboratories, showing that the red deer glycoprofile was different from the Norwegian CWD reindeer and CWD moose and from North American CWD. The isolate showed nevertheless features similar to the classical BSE (BSE-C) strain. Furthermore, BSE-C could not be excluded based on the PrPSc immunohistochemistry staining in the brainstem and the absence of detectable PrPSc in the lymphoid tissues. Because of the known ability of BSE-C to cross species barriers as well as its zoonotic potential, the CWD red deer isolate was submitted to the EURL Strain Typing Expert Group (STEG) as a BSE-C suspect for further investigation. In addition, different strain typing in vivo and in vitro strategies aiming at identifying the BSE-C strain in the red deer isolate were performed independently in three research groups and BSE-C was not found in it. These results suggest that the Norwegian CWD red deer case was infected with a previously unknown CWD type and further investigation is needed to determine the characteristics of this potential new CWD strain
Genome-wide structural variant analysis identifies risk loci for non-Alzheimer's dementias
We characterized the role of structural variants, a largely unexplored type of genetic variation, in two non-Alzheimer's dementias, namely Lewy body dementia (LBD) and frontotemporal dementia (FTD)/amyotrophic lateral sclerosis (ALS). To do this, we applied an advanced structural variant calling pipeline (GATK-SV) to short-read whole-genome sequence data from 5,213 European-ancestry cases and 4,132 controls. We discovered, replicated, and validated a deletion in TPCN1 as a novel risk locus for LBD and detected the known structural variants at the C9orf72 and MAPT loci as associated with FTD/ALS. We also identified rare pathogenic structural variants in both LBD and FTD/ALS. Finally, we assembled a catalog of structural variants that can be mined for new insights into the pathogenesis of these understudied forms of dementia
Overview of recent TJ-II stellarator results
The main results obtained in the TJ-II stellarator in the last two years are reported. The most important topics investigated have been modelling and validation of impurity transport, validation of gyrokinetic simulations, turbulence characterisation, effect of magnetic configuration on transport, fuelling with pellet injection, fast particles and liquid metal plasma facing components. As regards impurity transport research, a number of working lines exploring several recently discovered effects have been developed: the effect of tangential drifts on stellarator neoclassical transport, the impurity flux driven by electric fields tangent to magnetic surfaces and attempts of experimental validation with Doppler reflectometry of the variation of the radial electric field on the flux surface. Concerning gyrokinetic simulations, two validation activities have been performed, the comparison with measurements of zonal flow relaxation in pellet-induced fast transients and the comparison with experimental poloidal variation of fluctuations amplitude. The impact of radial electric fields on turbulence spreading in the edge and scrape-off layer has been also experimentally characterized using a 2D Langmuir probe array. Another remarkable piece of work has been the investigation of the radial propagation of small temperature perturbations using transfer entropy. Research on the physics and modelling of plasma core fuelling with pellet and tracer-encapsulated solid-pellet injection has produced also relevant results. Neutral beam injection driven Alfvénic activity and its possible control by electron cyclotron current drive has been examined as well in TJ-II. Finally, recent results on alternative plasma facing components based on liquid metals are also presented. ISSN:0029-5515 ISSN:1741-432
Overview of recent TJ-II stellarator results
The main results obtained in the TJ-II stellarator in the last two years are reported. The most important topics investigated have been modelling and validation of impurity transport, validation of gyrokinetic simulations, turbulence characterisation, effect of magnetic configuration on transport, fuelling with pellet injection, fast particles and liquid metal plasma facing components. As regards impurity transport research, a number of working lines exploring several recently discovered effects have been developed: the effect of tangential drifts on stellarator neoclassical transport, the impurity flux driven by electric fields tangent to magnetic surfaces and attempts of experimental validation with Doppler reflectometry of the variation of the radial electric field on the flux surface. Concerning gyrokinetic simulations, two validation activities have been performed, the comparison with measurements of zonal flow relaxation in pellet-induced fast transients and the comparison with experimental poloidal variation of fluctuations amplitude. The impact of radial electric fields on turbulence spreading in the edge and scrape-off layer has been also experimentally characterized using a 2D Langmuir probe array. Another remarkable piece of work has been the investigation of the radial propagation of small temperature perturbations using transfer entropy. Research on the physics and modelling of plasma core fuelling with pellet and tracer-encapsulated solid-pellet injection has produced also relevant results. Neutral beam injection driven Alfvénic activity and its possible control by electron cyclotron current drive has been examined as well in TJ-II. Finally, recent results on alternative plasma facing components based on liquid metals are also presentedThis work has been carried out within the framework of the EUROfusion Consortium and has received funding from the Euratom research and training programme 2014–2018 under Grant Agreement No. 633053. It has been partially funded by the Ministerio de Ciencia, Inovación y Universidades of Spain under projects ENE2013-48109-P, ENE2015-70142-P and FIS2017-88892-P. It has also received funds from the Spanish Government via mobility grant PRX17/00425. The authors thankfully acknowledge the computer resources at MareNostrum and the technical support provided by the Barcelona S.C. It has been supported as well by The Science and Technology Center in Ukraine (STCU), Project P-507F
Association between convalescent plasma treatment and mortality in COVID-19: a collaborative systematic review and meta-analysis of randomized clinical trials.
Funder: laura and john arnold foundationBACKGROUND: Convalescent plasma has been widely used to treat COVID-19 and is under investigation in numerous randomized clinical trials, but results are publicly available only for a small number of trials. The objective of this study was to assess the benefits of convalescent plasma treatment compared to placebo or no treatment and all-cause mortality in patients with COVID-19, using data from all available randomized clinical trials, including unpublished and ongoing trials (Open Science Framework, https://doi.org/10.17605/OSF.IO/GEHFX ). METHODS: In this collaborative systematic review and meta-analysis, clinical trial registries (ClinicalTrials.gov, WHO International Clinical Trials Registry Platform), the Cochrane COVID-19 register, the LOVE database, and PubMed were searched until April 8, 2021. Investigators of trials registered by March 1, 2021, without published results were contacted via email. Eligible were ongoing, discontinued and completed randomized clinical trials that compared convalescent plasma with placebo or no treatment in COVID-19 patients, regardless of setting or treatment schedule. Aggregated mortality data were extracted from publications or provided by investigators of unpublished trials and combined using the Hartung-Knapp-Sidik-Jonkman random effects model. We investigated the contribution of unpublished trials to the overall evidence. RESULTS: A total of 16,477 patients were included in 33 trials (20 unpublished with 3190 patients, 13 published with 13,287 patients). 32 trials enrolled only hospitalized patients (including 3 with only intensive care unit patients). Risk of bias was low for 29/33 trials. Of 8495 patients who received convalescent plasma, 1997 died (23%), and of 7982 control patients, 1952 died (24%). The combined risk ratio for all-cause mortality was 0.97 (95% confidence interval: 0.92; 1.02) with between-study heterogeneity not beyond chance (I2 = 0%). The RECOVERY trial had 69.8% and the unpublished evidence 25.3% of the weight in the meta-analysis. CONCLUSIONS: Convalescent plasma treatment of patients with COVID-19 did not reduce all-cause mortality. These results provide strong evidence that convalescent plasma treatment for patients with COVID-19 should not be used outside of randomized trials. Evidence synthesis from collaborations among trial investigators can inform both evidence generation and evidence application in patient care
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