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The transition to the use of paper in public elementary schools in Mexico was not easy. At the end of the nineteenth century, the use of slates had been questioned due to the health risk they represented since students often erased their writing with saliva and the material with which the slates were made did not always meet the necessary specifications. On the other hand, paper, from a hygienic, pedagogical and aesthetic point of view, was considered a superior material compared to the hardness of the slate, the shine of the surface and the lack of precision obtained in the tracing of the letters. Derived from this approach, the possibility of changing materials in official schools was seriously envisioned. However, the paper represented a very high cost. Only two paper mills could supply the schools and it was necessary to lower the price, and guarantee the supply by enhancing the distribution system. This article analyses the beginning of the conversion process of a technology for learning to write such as the slate for paper. I analyse the expense that it meant for the authorities and families, how the change was the result of a multiplicity of social, cultural, economic and political relations that intersected to give a new configuration of time, noise and established values in the classroom.

This paper presents a comprehensive review of the literature on electronic reading (e-reading) versus paper reading. The main objective was to assess the current state of research comparing digital and paper reading outcomes among students aged 6–18 years old, as well as assessing the impact of various factors (gender, socioeconomic status, and school location) in explaining the differences between the two modes. Inclusion criteria included the following: participants (6–18 years), research focus (comparing digital reading and paper reading), study type (quantitative or mixed methods), publication (peer reviewed between 2015 and 2022), and language (English). A systematic search in four databases (WOS, Scopus, ERIC, and JSTOR) in August 2022 was conducted by three reviewers. The search revealed 23 studies matching the inclusion criteria. The findings from the reviewed studies are diverse, with some reporting no significant differences in reading comprehension between the two modes, while others suggest screen inferiority, thereby favoring paper reading. Individual-level predictors, such as prior comprehension skills and reading habits, play a crucial role in determining reading performance across modes. Family-level factors, such as the number of books at home, and school-level factors, like the usage of ICT resources, influence both paper and digital reading comprehension. Moreover, gender differences in attitudes and performance towards different reading modes are apparent. SES is positively associated with reading achievement in both modes, with a larger effect shown for paper reading. Overall, the comparison between electronic and paper reading modes reveals a complex interplay of individual and contextual factors influencing reading comprehension and attitudes.

Durante las décadas de los años ochenta y noventa del siglo XX se produjo en España una eclosión de revistas de arte y cultura contemporáneas de formatos, intenciones y misiones muy diferentes. Este artículo se sitúa en el momento sociopolítico que propició una proliferación de proyectos editoriales vinculados al arte contemporáneo en el Estado español. Siguiendo este contexto nos ubicaremos en la fractura entre los principios de la modernidad en el periodo llamado Transición, teñidos de un sentimiento de euforia y una necesidad de desmemoria, y la crisis de los valores modernos que implicó la entrada de la posmodernidad, momento que asociamos con la insatisfacción de las generaciones jóvenes que habían accedido a la universidad y el resurgimiento de los valores neoconservadores que, en las mismas décadas, se extendían por la sociedad y la cultura occidentales (Europa y Estados Unidos). Mediante un ejercicio de síntesis de corte histórico, en virtud de la importante cantidad de proyectos editoriales de arte y cultura contemporánea que surgieron, nos centraremos en recuperar el planteamiento y evolución del proyecto editorial Papers d’Art, revista publicada en Cataluña. Esta propuesta estuvo vinculada a una iniciativa privada, la Fundación Espais de Girona, primero Espais. Centro de Arte Contemporáneo; un ejemplo singular de acuerdo con su compromiso desde un marco periférico y su vinculación sesgada con la globalización, fenómeno ligado al contexto geopolítico de la posmodernidad, con el que Papers d’Art evolucionó, creció y finalizó su actividad.

This applied research developed within the framework of a Portuguese Higher Education Institution. Its purpose is to assess academic practice in the context of a curricular unit in a graphic design degree course. This practice has been developed within three complementary perspectives: (a) the pedagogical concept and the proposed design exercise; (b) the selection of paper processes and materials used; (c) the design and structural definition of the graphic product. The purpose of this research is to describe the activity criteria from each perspective, exposing realization guidelines presented to students in designing a specific graphic product, from ideation, design process, and estimation of a feasible production. All this from the analysis of the proposed activity and evaluation of the prototype that represents Paper-pop-up design.

Este volume surge como consequência direta do Simpósio internacional PAPER TRAILS: post-industrial histories, technical memories and art practices in Tomar que teve lugar em Tomar (Portugal) entre 25 e 27 de maio de 2022. Por sua vez, o simpósio insere-se num projeto homónimo concebido, em parceria com colaboradoras da École de Design et Haute École d’Art du Valais (EDHEA), no Centro de Tecnologia, Restauro e Valorização das Artes (TECHN&ART), uma unidade de Investigação e Desenvolvimento financiada pela Fundação para a Ciência e a Tecnologia (FCT) com a referência UID/05488/2020 e pertencente ao Instituto Politécnico de Tomar (IPT).

Advances in writing technologies have fostered the gradual move from Paper-Based (PB) to Computer-Based (CB) writing assessment in foreign language (FL) education. The trend was further boosted by the outburst of the Covid-19 pandemic, which led to drastic changes in teaching and assessment practices. In higher education (HE) contexts, writing assessment in English as a foreign language (EFL) is more and more often managed by means of online learning platforms, where students create and submit written assignments on the computer. This paper examines a sample of 100 EFL exam essays completed by 100 Italian university students. Half of the essays were computer-typed on Moodle from home during the Covid-19 lockdown, whereas the other half were handwritten on paper during a face-to-face exam session after the Covid-19 emergency. The study presented herein compares the amount and types of formal errors in the CB and PB written assignments respectively. The results of the comparison may be useful to suggest hypotheses on the impact that both writing modality and environment can have on the quality of EFL writing in assessment contexts.

This research seeks to gain insight into the reading preferences of adolescents as they begin secondary education. The study examined a sample of 664 students in the first year of compulsory secondary education (ESO) in Cádiz to determine any similarities with small samples in other national and international contexts (Spain, Chile, Poland, and Portugal). The methodology employs reading format as a dependent variable and explores its relationship with the independent variables “sex” and “love of reading.” The statistics were processed with univariate and bivariate analyses to explore preferences for reading formats, and a CHAID analysis to establish reading profiles. The results show that traditional reading formats are preferred by the most avid readers, while more infrequent readers prefer to read digitally. This information offers opportunities to devise teaching strategies that promote reading in virtual environments.

In recent years, technological development in analytical instrumentation has progressed vigorously, which has allowed the evolution of analytical techniques that play an indispensable role within society, highlighting mass spectrometry. Parallel to the technological advance of this technique, the development of new ionization methods that are simpler, faster, and allow direct analysis without the need for prior treatment or sample processing is underway. The methods of ambient ionization derived from paper spray have been developing rapidly in current days, mainly in the forensic field, due to the chemical modifications made in the paper substrate and the introduction of new types of organic materials that function as a probe/substrate to collect, store, and ionize the sample, then enabling more efficient and selective analyzes. This review highlights direct analyzes by applying paper spray ionization in the forensic field and some variations of this technique, including Thread Spray Ionization (TSI) when a fabric thread is used; Touch Spray Ionization (TSI), which uses materials such as metallic needles, medical swabs, and wooden sticks; Fiber Spray Ionization (FSI), which applies polymeric fibers as substrates.

This work adheres to the recommendations for publication in three steps (Marin-Garcia, 2021). We propose a protocol to develop research the objective of which is to analyze the needs and challenges, as perceived by university lecturers, related to teaching, learning, or assessing competencies related to the innovative capacity of students in an array of digital remote teaching contexts. In this sense, we want to consider situations where teachers watch their students interact with each other. The interaction between students can occur face-to-face or remotely and, in the latter case, either synchronous or asynchronous. In addition, teacher observation can be done synchronously (face-to-face or remotely) or by watching a previously recorded video.

La professionalització dels intèrprets en l’àmbit jurídic està guanyant importància a Espanya a causa de les directives de la Unió Europea sobre els drets processals de persones sospitoses o acusades d’algun delicte. A això s’hi ha d’afegir la prolongada crisi humanitària, que ha sensibilitzat l’opinió pública sobre la qualitat de la interpretació proporcionada per diverses ONG i altres organismes que s’ocupen dels sol·licitants d’asil. Actualment, els proveïdors de serveis privats contracten els intèrprets en funció de les llengües que necessitin o que estiguin disponibles, sense exigir-los una formació específica. En aquest article, analitzem la qualitat percebuda dels serveis d’interpretació i el paper de l’intèrpret des de diverses perspectives, incloses les dels agents de les ONG (assessors jurídics, treballadors socials i psicòlegs) i els advocats que participen en aquesta mena de processos, seguint mètodes d’investigació descriptiva. A continuació, tractarem les diferents percepcions sobre la figura de l’intèrpret que tenen els diferents professionals que intervenen en el procediment de sol·licitud d’asil, amb l’objectiu d’obtenir una imatge vàlida, basada en dades, de la interpretació en el context de la sol·licitud d’asil a Espanya. S’espera que aquesta informació serveixi per omplir el buit que existeix en el desenvolupament professional dels intèrprets com a part essencial dels processos d’asil i, el que és més important, com a garantia dels drets humans. També contribuirà a sensibilitzar els professionals que desenvolupen la seva feina amb l’ajuda d’intèrprets.

Academic writing is essential for scientific knowledge dissemination and the professional development of those working in various disciplines.Yet, however important this complex skill is, it is not usually taught systematically, a fact that can act as a barrier for researchers to communicate the results of their work. In this first part, we synthesize the main tips provided by experts in the field, adding some of our personal experiences that they consider relevant to facilitate the process of academic writing and develop this skill in a collaborative context. In a second article, we will go deeper into the problem of writing the different sections of a scientific article and offer advice on ways to optimize it and make it as effective as possible.

INTRODUCTION. The twentieth century saw a strong process of medicalization and thetechnification of care. In recent years, we are experiencing a change in the health care model and the concept of humanized childbirth is emerging. A tool to encourage this and avoid obstetric violence is the birth plan. The midwife hasa fundamental role in it.OBJECTIVES. Describe the concept of humanized childbirth care, know the role of the midwife in it and delve into the vindication of women, while identifying the historical evolution on this subject. METHODOLOGY. Bibliographic review through the PubMed, CINAHL, Scopus, and CercaBib databases. 15 articles were selected and a bibliometric analysis has been carried out using the tool VosViewer. RESULTS. Humanized care is focused on empowering and dignifying women, so they have an active and decisive role and can live the birth process as a positive experience. The birth plan is an instrument that positively influences this process and maternal-fetal outcomes, so its use is encouraged. In addition, midwives are essential in the implementation of humanized care that allows to avoid situations of obstetric violence. CONCLUSION. It is important that health professionals adopt ethical sensitivity that contributes to this respect for women’s autonomy and avoid situations of obstetric violence. It is necessary to change the obstetric model in the training of health professionals so that they become aware and adopt training models that tend to improve the quality of care.

Abstract: In this article, we will attempt a broad exploration of new literary forms in order to gain an overview of how literary work has taken hold of new digital technologies. We will then attempt to identify the problematic relationship between electronic and digital literature and examine the definitional issues that arise. Finally, we present an overview of the different types of digital poetry, highlighting the relationship of continuity or rupture between traditional and digital literary forms. Keywords: Literature, Digital, Electronics, Hypertextuality, Interactivity

(Series Information) European Papers - A Journal on Law and Integration, 2023 8(1), 349-352 | What Should Have Said | (Abstract) This preface to the new series What ... Should Have Said: Rewriting Landmark Judgments of the European Court of Justice introduces the project and its rationale. Legal scholars typically critically analyse court judgments so as to provide a ‘soft power based’ check on judicial reasoning and provide doctrinal and normative guidance for courts in future cases. Notwithstanding the merits of legal scholarship, especially scholarly critiques of case law invites the question of how these scholars concretely would have decided the respective cases. What ... Should Have Said provides a new way of ‘doing EU law’ by asking both junior and senior EU legal scholars to literally rewrite landmark judgments of the European Court of Justice.

In the criminal sphere, it is extremely important to identify perpetrators of crimes based on latent fingerprints (invisible to the naked eye) revealed at crime scenes and their corresponding objects. The present work aimed to evaluate four synthetic analogues of curcumin as possible IDL developers, and to compare their results with those of carbon black developer, as well as to reach the most adequate parameters in the use of the LTQ and FT-ICR mass spectrometers with the paper spray ionization (PS) source to study the chemical composition of the endogenous substances contained in the IDL. For this, a 24-1 factorial design was developed, where it was verified that the distance and voltage factors were the most influential for the increase in the response of signals, in the analysis of latent fingerprints by PS. Among the detected substances we can mention around 20 fatty acids, and squalene. Finally, four potential developers, synthetic analogues of curcumin, were compared with carbon black developer. The revelation of latent fingerprints occurred efficiently, allowing the visualization of minutiae, such as bifurcation and end of line, making it possible to classify them, according to the Vucetich Fingerprint Classification System.

As práticas pedagógicas centradas em videojogos têm vindo a tornar-se cada vez mais populares, dado oferecerem vantagens empiricamente validadas no que diz respeito ao envolvimento dos alunos, à sua motivação e sentido de agência. Estes construtos afetivos são agora reconhecidos como componentes-chave de uma aprendizagem eficaz e significativa, favorecendo o desenvolvimento de competências cognitivas de nível superior. Contudo, enquanto se atesta um número elevado de estudos sobre o uso de videojogos educativos nas áreas das Ciências, Tecnologia, Engenharia e Matemática (STEM), é necessário ainda explorar as potencialidades desses recursos nas disciplinas de Humanidades. Analogamente, devem ser empreendidos mais esforços no sentido da investigação e implementação de atividades que atribuam aos alunos, especialmente àqueles de níveis inferiores ao do Ensino Superior, o papel de designers de videojogos, aliado ao de jogadores. Desta feita, criam-se as condições para que os alunos construam material didático autêntico, sob a forma de experiências digitais imersivas, que apresentam tanto um valor educacional como de entretenimento. Assim, este artigo funciona como um Position Paper sobre a Aprendizagem Baseada em Jogos Digitais ou Digital Game-based learning (DGBL), descrevendo as vantagens afetivas de se jogar e criar videojogos educativos na sala de aula de Humanidades, enquanto reflete criticamente sobre possíveis obstáculos ao sucesso desta prática. O nosso objetivo é estudar como a tecnologia educativa e imersiva pode satisfazer as necessidades de aprendizagem da Geração Z, tendo em consideração os diferentes fatores contextuais que definem o seu perfil.

Género, Literatura Infantil y Juvenil y Formación de Identidades. Consol Aguilar Ródenas (2023). Colección Sendes Universitat Jaume I. 306 páginas. Identificadores: ISBN 978-84-19647-51-1 (paper)| ISBN 978-84-19647-52-8 (pdf) | ISBN 978-84-19647-53-5 (ePub).

Aquest article destaca el paper dels serveis socials locals en l’aplicació de les polítiques d’habitatge, concretament a Catalunya. És per això, que es presenta una revisió de tres instruments normatius: La Llei 18/2007, del dret a l’habitatge, la Llei 24/2015, de mesures urgents per a afrontar l’emergència en l’àmbit de l’habitatge i la pobresa energètica i la Llei 4/2016, de mesures de protecció del dret a l’habitatge de les persones en risc d’exclusió residencial. S’identifiquen els processos o polítiques públiques que ―per a la seva concreció― requereixen de la participació de les professionals dels serveis socials, destacant els reptes que es presenten i la necessària articulació entre les diferents administracions públiques per a garantir l’exercici efectiu del dret a l’habitatge de les persones que resideixen a Catalunya.

Respiratory syncytial virus (RSV) is a major cause of respiratory tract infections in adults, particularly older adults and those with underlying medical conditions. Vaccination has emerged as a potential key strategy to prevent RSV-related morbidity and mortality. This Neumoexperts Prevention (NEP) Group scientific paper aims to provide an evidence-based positioning and RSV vaccination recommendations for adult patients. We review the current literature on RSV burden and vaccine development and availability, emphasising the importance of vaccination in the adult population. According to our interpretation of the data, RSV vaccines should be part of the adult immunisation programme, and an age-based strategy should be preferred over targeting high-risk groups. The effectiveness and efficiency of this practice will depend on the duration of protection and the need for annual or more spaced doses. Our recommendations should help healthcare professionals formulate guidelines and implement effective vaccination programmes for adult patients at risk of RSV infection now that specific vaccines are available., (Copyright © 2024 The Authors. Published by Elsevier España, S.L.U. All rights reserved.)

In this paper, we estimated the methane emissions by the disposal of sanitary and domestic-use paper consumed throughout Brazil from 1901 to 2016. The apparent consumption of this type of paper from 1961 to 2016, calculated from the data of the FAOSTAT system, was used to estimate the amount of waste disposed of annually in three site categories: sanitary landfill, controlled dump, and open-air, uncontrolled dump. The 2006 IPCC Guide methodology was used to calculate CH4emissions and long-term carbon storage. Nine scenarios based upon the law that establishes the National Solid Waste Policy (NSWP) were examined, considering 100% waste disposal and treatment in landfills or incineration from 2014. The total emission was estimated at 1.967 MtCH4, corresponding to 55.080 MtCO2eq by GWP-AR5, and the stored carbon at 3.724 Mt, corresponding to 13.655 MtCO2eq. CH4emission increased beyond the population growth rate due to an increase in the per capita paper consumption in the country, from 0.02 kgCH4.year-1 in 1961 to 0.30 kg CH4.year-1 in 2016. The NSWP has not yet been accomplished, and the scenarios outlined indicate that, from the point of view of CH4 emissions, it would be more advantageous to carry out incineration instead of applying other waste treatment technologies.

Having the South American Amazon as our spatial cut, this paper aims to discuss it as a space of physical, environmental and socioeconomic relevance to regional rearticulation, highlighting the issue of transport infrastructure and the importance of Brazil to boost this process in contemporary times. With the end of the Union of South American Nations (Unasur) in 2019, several of its councils were paralyzed and discontinued, such as the Infrastructure and Planning Council (Cosiplan), reflecting the abandonment of efforts built since the beginning of the 21st century. In addition, relations between national preferences and the indispensable search for development, and mechanisms of cooperation and regional integration, which are fundamental instruments to meet such demands, were stressed. In turn, a scenario of discredited institutions made room for greater action by multiple public and private, internal and increasingly international and multinational actors who, in a way disconnected from regional arrangements, directed infrastructure investments focusing on their own interests, resulting in expiation of the the socio-environmental vulnerability in the Amazonian territories. We argue that it is necessary to integrate to preserve and develop. Regional governance and institutionality are central pillars for the resumption of a more resilient South American integration process, aimed at protecting and developing the Amazon, in which Brazil has an important driving role to be exercised and a directive leadership to retrieve.

ABSTRACT Coronary artery calcification is probably the main determinant of the poor outcome of percutaneous coronary interventions and is associated with higher rates of adverse events. There are currently different balloon or specific device-based plaque modification techniques available. Knowing their characteristics and proper use is key for the optimal treatment of calcified lesions. This position paper—promoted by the Interventional Cardiology Association of the Spanish Society of Cardiology (ACI-SEC)—describes existing plaque modification techniques currently available and proposes an algorithm for the management of calcified lesions.

Este artigo visa apresentar como os veículos de mídia brasileiros apareceram na cobertura dos principais jornais e agências de notícias internacionais que trabalharam no país durante os anos do Regime Militar (1964-1985). Com este trabalho historiográfico, a pesquisa apresentada permite que se ampliem estudos sobre: as distinções entre os métodos de censura aplicados a veículos nacionais e internacionais; o decorrer das mudanças nas políticas externas brasileiras e estadunidenses ao longo dos 21 anos de ditadura, refletidas no jornalismo transnacional; a evolução midiática nacional e sua influência política, considerando as alterações no modelo jornalístico, outorgadas pela realidade da Guerra Fria. Este artigo ambiciona uma proposta interdisciplinar e transnacional para o objeto oferecido.

Published in 2021 by Presa Universitară Clujeană, ”A Lifetime Dedicated to Norwegian Language and Literature” is a celebratory scholarly work compiled and edited by the members of the Department of Scandinavian Languages and Literature at the Faculty of Letters in Cluj-Napoca, Romania, in honour of Professor Sanda Tomescu Baciu, founder of The Norwegian Language and Literature BA program (1991), of the Department of Scandinavian Languages and Literature (2001) and disseminator of Norwegian culture, language and li-terature for over thirty years. Throughout her entire career, Professor Sanda Tomescu Baciu has never ceased to raise interest in Norwegian studies, and strive to offer her students the best academic resources, a warm and welcoming learning environment and also countless scholarship opportunities. Her contribution to the popularization and the increasing fascination with the North is immeasurably valuable to the academic community, not only in Romania, but also internationally. Her colleagues and editors of this volume have carefully selected and arranged a collection of congratulatory messages and academic essays from various fields encompassed in the Scandinavian studies.

In the face of the premonitions that pointed to its obsolescence and lethal decline due to the hegemonic digital paradigm, the (hyper)contemporary novel has demonstrated a strong capacity for reinvention and rejuvenation, exploring, for example, the materiality and visuality of the printed page. This occurs in the multimodal novel, the narrative subgenre that we intend to characterize. We highlight its strong archival propensity and adduce the reasons that drive the multimodal narrator to integrate and semantically explore resources other than just words (e.g., images, documents, objects, etc.). Starting from this theoretical section, our main objective is to analyze the portuguese novel A Coleção Privada de Acácio Nobre (2016), by Patrícia Portela. This multimodal work presents the "spolio" of Acácio Nobre, an important artist (1869-1974), but shrouded in an aura of silence and, therefore, practically unknown to all. In order to demonstrate his real existence, various types of documentary evidence (photographs, manuscripts, drawings, works of art, and others) are inserted. It is our intention to analyze the various strategies of veridiction and fictionalization deployed by the narrator in the construction of the Acacian figure. In addition, we also consider the possibility of Acácio Nobre (along with Bernardo Soares, his friend) being a semi-heteronym.

Prenent en consideració el paper actual i futur de la intel·ligència artificial en la licitació pública, el present article es centra, des de l’òptica de les directrius de la Llei 15/2022, integral per a la igualtat de tracte i la no-discriminació, en la potencialitat que pot correspondre a la intel·ligència artificial davant la detecció i l’actuació contra les col·lusions en la contractació pública. Dins d’aquest nou dret computacional de la competència o “antitrust 3.0” es detallarà el paper capdavanter que ha assumit l’Autoritat Catalana de la Competència (ACCO) pel que fa a la posada en marxa, en fase experimental, de l’eina informàtica ERICCA, i, en paral·lel, la seva participació activa dins del projecte Computational Antitrust del Stanford Center for Legal Informatics (CodeX).

It is estimated that more than 500 species of insects have been introduced to the Galápagos Islands via human activities. One of these insect invaders is the yellow paper wasp, Polistes versicolor (Olivier) (Hymenoptera: Vespidae), a social wasp native to continental South America. In Galápagos, these wasps are voracious predators of insect larvae, compete with native species for insect prey or for floral resources and are a human nuisance. Wasp suppression methods currently in use are inefficient and attract non-target species, calling for the development of species-specific attractants that can be used in baits to lure and kill wasps. To evaluate the potential for using wasp semiochemicals in baits, we determined the biochemical composition of the head, thorax, Dufour’s and venom glands of P. versicolor foragers via gas chromatography/mass spectrometry (GC/MS). Male and female wasps were tested for behavioral responses to body segment extracts from both sexes. Female body extracts consistently elicited more behavioral responses in both male and female wasps than male extracts. Females reacted to female head, thorax and abdomen (the Dufour’s and venom glands are located in the abdomen) extracts, whereas males reacted significantly to female head and thorax extracts. One male body extract, the head, elicited two significant behaviors: female wasps groomed more often, and males touched the filter paper more often compared to the blank control. Head extracts consistently changed the behavior of female and male wasps and, together with female thorax extracts, have potential as species-specific lures for yellow paper wasps. Heads were mainly composed of hydrocarbon lipids and oleamide, a ligand for odorant-binding proteins. The thorax consisted of fatty aldehydes, long-chain alkanes and fatty amide lipids. Field trials of blends of these compounds in high wasp density areas of Galápagos are the next step to confirm if any of these compounds are attractive to P. versicolor.

Objective: The need to generate evidence related to COVID-19, the acceleration of publication and peer-review process and the competition between journals may have influenced the quality of COVID-19 papers. Our objective was to compare the characteristics of COVID-19 papers against those of non-COVID-19 papers and identify the variables in which they differ. Method: We conducted a journal-matched case-control study. Cases were COVID-19 papers and controls were non-COVID-19 papers published between March 2020 and January 2021. Journals belonging to five different Journal Citations Reports categories were selected. Within each selected journal, a COVID-19 paper (where there was one) and another non-COVID-19 paper were selected. Conditional logistic regression models were fitted. Results: We included 81 COVID-19 and 143 non-COVID-19 papers. Descriptive observational studies and analytical observational studies had, respectively, a 55-fold (odds ratio [OR]: 55.12; 95% confidence interval [95%CI]: 7.41-409.84) and 19-fold (OR: 19.28; 95%CI: 3.09-120.31) higher likelihood of being COVID-19 papers, respectively, and also a higher probability of having a smaller sample size (OR: 7.15; 95%CI: 2.33-21.94). COVID-19 papers had a higher probability of being cited since their publication (OR: 4.97; 95%CI: 1.63-15.10). Conclusions: The characteristics of COVID-19 papers differed from those of non-COVID-19 papers published in the first months of the pandemic. In order to ensure the publication of good scientific evidence the quality of COVID-19-papers should be preserved. Resumen: Objetivo: La necesidad de generar evidencia relacionada con la COVID-19, la aceleración del proceso de revisión por pares y publicación, y la competencia entre revistas, pueden haber influido en la calidad de los artículos sobre la COVID-19. El objetivo fue comparar las características de los artículos sobre la COVID-19 con las de los artículos no COVID-19 e identificar las variables en las que difieren. Método: Se realizó un estudio de casos y controles emparejados por revista. Los casos eran artículos COVID-19 y los controles eran artículos no COVID-19 publicados en el mismo periodo. Se seleccionaron revistas pertenecientes a cinco categorías diferentes del Journal Citations Reports. Dentro de cada revista seleccionada, se escogió un artículo COVID-19 (cuando había uno) y otro artículo no COVID-19. Se ajustaron modelos de regresión logística condicional. Resultados: Se incluyeron 81 artículos COVID-19 y 143 artículos no COVID-19. Los estudios observacionales descriptivos y los estudios observacionales analíticos tenían, respectivamente, una probabilidad 55 veces mayor (odds ratio [OR]: 55,12; intervalo de confianza del 95% [IC95%]: 7,41-409,84) y 19 veces mayor (OR: 19,28; IC95%: 3,09-120,31) de ser artículos COVID-19 y de tener un tamaño de muestra menor (OR: 7,15; IC95%: 2,33-21,94). Los artículos más citados desde su publicación tenían 5 veces más probabilidades de ser artículos COVID-19 (OR: 4,97; IC95%: 1,63-15,10). Conclusiones: Los artículos COVID-19 parecen tener mayor impacto bibliométrico, a pesar de tener menor calidad metodológica. Para asegurar la publicación de buena evidencia científica se debe preservar la calidad de los artículos relacionados con la COVID-19.