(English below)Esta investigación estudia las características de los comentarios que logran más impacto en un entorno digital. Se emplea una metodología cualitativa que analiza los 50 mensajes con más likes del foro de una noticia, publicada en Marca.com, en la que el jugador del Real Madrid Vinicius Junior denuncia los episodios racistas sufridos en los estadios de fútbol españoles. Se tienen en cuenta las emociones expresadas por los autores, así como las estrategias retóricas y argumentales utilizadas en los comentarios. Se concluye que los mensajes escritos con empatía, aunque estén en contra de la opinión mayoritaria, pueden tener cierto impacto si formulan un argumento dual que reconoce las opiniones contrarias como valiosas en algún punto, incluso sin validarlas. En el análisis de la eficacia de los mensajes se observa que lo distinto se premia, como aportar un dato inesperado de forma inteligente (ironía) o presentar una opinión contraria a lo que se espera por pertenecer a un determinado grupo (afiliación):en este último caso el comentario resulta más auténtico y, por lo tanto, es más impactante. Se demuestra también que la percepción de los mensajes es compleja y que algunos elementos o rasgos que habitualmente se consideran eficaces pueden no serlo. Así sucede con los comentarios breves, que no siempre tienen trascendencia y pueden aparecer como inconsistentes si no incluyen una argumentación. Tampoco la diversidad o la acumulación de argumentos es positiva en cualquier circunstancia: compensa más usar los argumentos por separado para no distraer del objetivo persuasivo. This research examines the characteristics of comments that achieve the greatest impact in a digital environment. A qualitative methodology is used to analyse the 50 most liked messages in the forum discussion prompted by a news article published on the Spanish sports newspaper Marca.com. The article focuses on Real Madrid player Vinicius Junior’s denunciation of racist incidents in Spanish football stadiums. This study considers the emotions expressed by the authors, as well as the rhetorical and argumentative strategies employed in the comments. The findings suggest that messages written with empathy, even when opposing the opinion of the majority, can have a significant impact if they present a dual argument that acknowledges opposing views as valuable in some respects, even without validating them. The analysis reveals that originality is rewarded, such as introducing an unexpected fact in an intelligent manner (e.g., irony) or expressing an opinion contrary to expectations based on group belonging (affiliation). In the latter case, the comment appears more authentic and, therefore, more impactful. The study also demonstrates that the perception of messages is complex, and some elements traditionally considered effective may not always be so. For example, brief comments do not always carry weight and can come across as inconsistent if they lack sufficient argumentation. Similarly, the diversity or accumulation of arguments is not universally positive; it is often more effective to present arguments separately to avoid distracting from the persuasive objective.
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Purpose: This is a position paper describing the elements of an international framework for assistive techhnology provision that could guide the development of policies, systems and service delivery procedures across the world. It describes general requirements, quality criteria and possible approaches that may help to enhance the accessibility of affordable and high quality assistive technology solutions. Materials and methods: The paper is based on the experience of the authors, an analysis of the existing literature and the inputs from many colleagues in the field of assistive technology provision. It includes the results of discussions of an earlier version of the paper during an international conference on the topic in August 2017. Results and conclusion: The paper ends with the recommendation to develop an international standard for assistive technology provision. Such a standard can have a major impact on the accessibility of AT for people with disabilities. The paper outlines some the key elements to be included in a standard.
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Background: Profiling the plant root architecture is vital for selecting resilient crops that can efficiently take up water and nutrients. The high-performance imaging tools available to study root-growth dynamics with the optimal resolution are costly and stationary. In addition, performing nondestructive high-throughput phenotyping to extract the structural and morphological features of roots remains challenging. Results: We developed the MultipleXLab: a modular, mobile, and cost-effective setup to tackle these limitations. The system can continuously monitor thousands of seeds from germination to root development based on a conventional camera attached to a motorized multiaxis-rotational stage and custom-built 3D-printed plate holder with integrated light-emitting diode lighting. We also developed an image segmentation model based on deep learning that allows the users to analyze the data automatically. We tested the MultipleXLab to monitor seed germination and root growth of Arabidopsis developmental, cell cycle, and auxin transport mutants non-invasively at high-throughput and showed that the system provides robust data and allows precise evaluation of germination index and hourly growth rate between mutants. Conclusion: MultipleXLab provides a flexible and user-friendly root phenotyping platform that is an attractive mobile alternative to high-end imaging platforms and stationary growth chambers. It can be used in numerous applications by plant biologists, the seed industry, crop scientists, and breeding companies.
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