The replaceability of the subject in the pandemic postmodernity of the 21st century / La reemplazabilidad del sujeto en la posmodernidad pandémica del siglo xxi

resumen está disponible en el texto completo

ABSTRACT Objective: This research article addresses the understanding of the resignification of the concept of love from the transformations generated by the pandemic and the confinement by Covid-19 in Medellín (Colombia) between 2020 and2023, making a brief account of the heuristic memory used for the design, collection and analysis of research information, specifying methodological elements on which the process was based and the ways by which it was possible to come up with new findings; Subsequently, some semantic networks generated in the atlas.ti software are presented with their respective analyzesfrom which a session ofresults and conclusions is projected. Materials and methods: Regarding the investigative structure, four moments were developed. In the first one, the ontoepistemological foundation was developed, for which printed and digital scientific bibliographic sources were used, analyzing more than 250 articles in English and Spanish. The second moment was the development and application of semi-structured interviews to key informants. The third moment was the realization of the panel of experts with the adaptation of the Delphi methodology. The fourth, and last moment, was the analysis of the information collected for the consolidation of the products and results of the research through analysis matrices and the atlas.ti software for qualitative data processing. The research was developed in the city of Medellín from January 2021 to May 2023. The key informants were selected through the intentional sampling model, which responded to the criteria that guided the investigative process. Thus, the main inclusion criteria, for the general population, were being of legal age and having been part of an emotional or family relationship during the period of confinement by Covid-19 in the city of Medellín. The key informants were chosen among consultants of the psychology service, in total, 30 interviews were carried out with the general population. On the other hand, four professionals in psychology were selected whose professional work was related to the attention to the previously described population before, during and after the period of confinement. Finally, four experts were selected to carry out the panel, trained in clinical psychology, social work, sociology and sexology. Results: The data collected was processed through the Atlas.ti software, in which 38files corresponding to the transcripts of interviews with the population, interviews with professionals and panel of experts were collected. Likewise, in the processing of information, six main categories were identified in which 32 emerging codes were grouped, supported by 918 citations of the analyzed instruments. As a result of this research, it has been shown that pandemic postmodernity generated changes regarding the meaning of the concept of love, while exacerbating the characteristic elements of postmodernity, such as the relativization of ties. Added to this is a reality that had a direct impact on such ties, such as the confinement caused by the Covid-19 pandemic, which not only affected people's health, but also caused profound transformations in the social fabric, from in particular, in relational dynamics, as it fostered the permanent use of digital and virtual networks given the mandatory nature of social distancing. In this same logic, the research sought a deep reflection on those new scenarios that were arranged by confinement in the context of postmodernity, particularly analyzing the way in which couples and families began to live new relational experiences in affective matters. . In this way, it is understood that love is a dynamic concept that changes according to the social and contextual particularities that, in this case, generated the pandemic. Among the most significant findings of this research, it is found that, in effect, great and profound transformations have been perceived around the meaning of the concept of love, given that the pandemic and confinement were activators of affective conflicts that had not been processed. in other scenarios. The interviewees state that love has been evolving and that a generational gap is beginning to become evident in the way other generations understood and lived love. In this way, family and couple love have taken on new meanings, which go hand in hand with new structural relational models in emotional and affective contacts. In accordance with the above, a large majority of key informants refer that the rise of the media and, particularly, of social networks, have generated profound effects on the concept of love from the perspective of the couple and the family, basing such changes in the amount of time invested in the use of devices and in the relational logics that are established through the different social networks, in which the possibility of meeting hundreds of people is established, having hundreds of close contacts, but, most of the time, without the possibility of generating deep ties. Conclusions: It is concluded that the Covid-19 pandemic exacerbated the use of digital platforms and, consequently, new relational scenarios were consolidated that continue to feed relativism and the link fragility of postmodernity. When carrying out the analysis of the information obtained during the field work, it is possible to recognize some common discourses among the people who participated in the investigation. In this logic, one could speak of interpretations and conceptualizations that have simply begun to be part of the social construct, perhaps as a kind of imaginary in which ideas that become commonplace are simply accepted, which are influenced, or in some cases cases even defined by the massive consumption of content on social networks. Addressing the theme of love was, as anticipated in the onto-epistemological foundation of the research, dealing with a topic in which all people have something to contribute and about which there is always something to say. Added to this approach is the issue of the pandemic, another reality about which all human beings of the present time have something to say, as it is a recent event that affected the lives of all people. Both realities, love and the pandemic, run the risk of falling into subjectivity, taking into account that they end up being personal experiences that may be far from constructions based on an epistemological reflection and of which it can be said that emotions, sensations andfeelings prevail feelings when trying to talk about them.

Accessibility in video games for the visually impaired population in Colombia / Accesibilidad en los videojuegos para población con discapacidad visual en colombia

resumen está disponible en el texto completo

ABSTRACT In recent years, the change in the design of video games has become evident, one of them is accessibility for people with different disabilities, despite the laws, which are very limited, there are no standards that require companies, industries and producers from different sectors implement this resource in their projects. From this research, the objective is to investigate the importance that these inclusion games comply with the response to stimuli provided by the industry, in this field, and that the support that the country is giving to this need to be felt is also felt. this visually impaired population. Based on the mixed research methodology, different sources are investigated in order to demonstrate how necessary it is that there are models of inclusion in video games, both entertainment and educational (serious), thus reaching an identity model that. The lack of laws and resources that promote this industry is evidenced. The project made it possible to describe the main strategies and resources that have been proposed and/or implemented in terms of accessibility for people with visual disabilities in Colombia, investigating and comparing the information obtained from the state of the art, and in this way conclude with the impact of these development methods, in the visually impaired population. An important impact has been the technological evolution that other countries have managed to develop for this type of population. As a conclusion, a disparity was found in the development of this project, which is precisely the little accessibility that people with visual disabilities have to video games in Colombia, because beyond the interaction that exists with some, much more access is required. And above all more investment and enactment of laws that support this resource. Using the mixed research methodology, different sources are investigated in order to demonstrate how necessary it is that there are models of inclusion in video games, both entertainment and educational (serious), thus reaching an identity pattern that gives as shows the lack of laws and resources that promote this industry. From this type of research, it was concluded that the lack of resources has been a legible mark that passes through these industries that have the panorama quite compromised by the demands of the market, but that due to this lack of economic resources they cannot reach the levels of implementation. to its mission and vision. Observing what was said above, it becomes complex to be able to carry out a research that clearly defines the inclusion processes for this type of people with said disability in Colombia. Each model of each industry is defined in a different way, since not all of them have this offer in their services. Common to this type of population. What, then, allowed us to conclude this research, finding social differences in each production of a video game? The project allowed us to describe the main strategies that have been proposed and/or implemented in terms of accessibility for people with visual disabilities in Colombia, investigating and comparing the information obtained from the state of the art, as mentioned above. Thus, then, different responses were found to this inclusion, not only in entertainment games but also in educational ones, which in the end are also very important in the classroom, because not only should one think about the distraction game, but also about the playful nature of teaching, thus helping teachers in the development of their classes. In this way, we conclude with the impact of these development methods on the visually impaired population. Another important point that could be evidenced is the evolution of technology, which has brought haptic systems, immersive and dynamic audio, as well as braille itself in digital systems, this, of course, has allowed progress towards much more logical and dynamic resources, but they continue to be limited precisely because they cannot be implemented correctly, due to their high purchasing value. We must think not of people who suffer from visual disabilities, but rather we must think of all social strata with this type of disability who can, with their resources, access this type of technology. Each part of the intervention exercise with state and private companies led to results that concluded in the population with visual disabilities that does not have the possibility of accessing this exercise of inclusion, and beyond the common interest in popularizing these video games, the limitation of certain sectors is seen that do not find in this undertaking a great industry, since the majority assures that it is more lucrative to invest in video games for people without no limitation or disability than investing in this other type of video game In conclusion, the disabled population in Colombia is 3,134,037; this number is very high if we also consider the rural populations that live without any type of resource or technological reach; Due to their socioeconomic condition and location, they are people who have a deterioration in services, then what is the extent of the disabled population in these areas that do not have the support and resources to improve their quality of life? It is almost null, there is no possibility that in the most vulnerable places and far from the reach of the government, inclusion exercises will be carried out with the visually disabled population, because simply in the last population census that was carried out in Colombia in 2018, more than 50% of the population They do not access the Internet, this added to governments that waste state money, it could be said that the level exceeds that percentage. If so, it is very possible that the reach of this population to these technological resources is very bad. A lot of economic investment is required on the part of the state, and for the designers of these technologies to expand to cover their creative enterprises, to the entire population, without the right to exclusion. For this reason, in this project a disparity is evident, which is precisely the little accessibility that people with visual disabilities have to video games in Colombia, not only from entertainment, but from their spaces in the classroom, which is what many demands. academics for their models and resources to work with this population, because beyond the interaction that exists with some (very few), much more access is still required and above all more investment and enactment of laws that support said resource.

Litterfall and nutrient transfer dynamics in a successional gradient of tropical dry forest in Colombia / Dinámica de la hojarasca y transferencia de nutrientes en un gradiente sucesional de bosque seco tropical en Colombia

Introduction: The litterfall production, foliar nutrient dynamics and decomposition are essential to maintain nutrient cycling, soil fertility, and carbon regulation in terrestrial ecosystems. With several studies addressing the variation of these processes, their dynamics in tropical dry forests (TDFs) remain unclear, due to its complex interaction of biotic and abiotic factors. Objective: To evaluate litterfall, nutrient potential return and use efficiency, and decomposition variation in a TDF successional gradient in Tolima, Colombia. Methods: We quantified litterfall from November 2017 to October 2019 in 12 plots distributed in four successional stages: initial, early, intermediate, and late forests. We identified key tree species in foliar litter production and characterized the foliar decomposition of these species. At the community level, we quantified the C, N and P potential return, the N and P use efficiency, and the C:N and N:P ratio. Subsequently, we analyze relationships between vegetation characteristics and some soil chemical properties with these ecological processes. Results: We found that total litterfall in late forests (8.46 Mg ha-1 y-1) was double that found in initial forests (4.45 Mg ha-1 y-1). Decomposition was higher in initial (k = 1.28) compared to intermediate (k = 0.97) and late forests (k = 0.87). The nutrient potential return didn't change along succession, but it did show differences between study sites. The structural development and species richness favored litterfall, while soil chemical conditions influenced nutrient returns and decomposition. Conclusions: TDFs could recover key ecosystem function related to litterfall and nutrient dynamics after disturbances cessation; however, the soil quality is fundamental in return and release of nutrients.

Introducción: La producción de hojarasca, la dinámica de nutrientes foliares y la descomposición son esenciales para mantener el ciclo de nutrientes, la fertilidad del suelo y la regulación del carbono en ecosistemas terrestres. Con diversos estudios que abordan estos procesos, su variación en los bosques secos tropicales (BSTs) permanece incierta, por su compleja interacción de factores bióticos y abióticos. Objetivo: Evaluar la caída de hojarasca, el retorno potencial de nutrientes y eficiencia de uso, y la variación en descomposición en un gradiente sucesional de un BST en Tolima, Colombia. Métodos: Cuantificamos la caída de hojarasca entre noviembre 2017 y octubre 2019 en 12 parcelas distribuidas en cuatro estados sucesionales: bosque inicial, temprano, intermedio y tardío. Identificamos las especies arbóreas clave en la producción de hojarasca y caracterizamos la descomposición foliar de estas especies. A nivel comunitario, cuantificamos el retorno potencial de C, N y P, la eficiencia de uso de N y P y la relación C:N y N:P. Posteriormente, analizamos las relaciones entre las características de la vegetación y algunas propiedades químicas del suelo con estos procesos ecológicos. Resultados: Encontramos que la caída total de hojarasca en los bosques tardíos (8.46 Mg ha-1 año-1) fue el doble de la hallada en bosques iniciales (4.45 Mg ha-1 año-1). La descomposición fue mayor en bosques iniciales (k = 1.28) en comparación con bosques intermedios (k = 0.97) y tardíos (k = 0.87). El retorno potencial de nutrientes no cambió con el avance de la sucesión vegetal, pero exhibió diferencias entre los sitios de estudio. El desarrollo estructural y la riqueza de especies favorecieron la caída de hojarasca, mientras que las condiciones químicas del suelo influyeron en el retorno de nutrientes y descomposición. Conclusiones: Los BSTs tienen la capacidad de recuperar la función ecosistémica de aporte de hojarasca fina, retorno y liberación de nutrientes después del cese de alteraciones antrópicas; sin embargo, la calidad del suelo es fundamental en el retorno y liberación de nutrientes.

[The track of the clinical researcher]. / El camino del investigador clínico.

In this issue, the students of the Maestría en Ciencias de la Salud Program, who are generally doctors, publish their work in the format of architectural design. The architectural design, allows to demonstrate in a schematic way, the objective, basal state, maneuver and outcome of their investigations. In this issue of the Revista Médica del IMSS, architectural design is used explicitly for the first time in a scientific publication. This innovation was achieved thanks to the collaboration of the editors and students of the Maestría en Ciencias de la Salud Program.

En este número los estudiantes de la Maestría en Ciencias de la Salud, los cuales, en general, son médicos y publican sus trabajos con el formato del diseño arquitectónico. El diseño arquitectónico permite mostrar de forma esquemática, el objetivo, estado basal, maniobra y desenlace de sus investigaciones. En este número de la Revista Médica del IMSS se usa por primera vez de forma explícita el diseño arquitectónico en una publicación científica. Esta innovación se logró gracias a la colaboración de los editores y estudiantes de la Maestría de Ciencias de la Salud.

Aplicabilidade da Teoria dos Sintomas Desagradáveis para a população de homens idosos com COVID-19 no Brasil / Aplicabilidad de la teoría de los sintomas desagradables a la población de hombres ancianos con COVID-19 en Brasil / Applicability of the Theory of Unpleasant Symptoms to the population of older men with COVID-19 in Brazil

Resumo Objetivo analisar os clusters de sintomas desagradáveis em homens idosos na pandemia/sindemia da COVID-19. Método estudo qualitativo, multicêntrico, realizado entre março de 2021 e abril de 2022, no qual participaram 94 homens idosos, os quais responderam a um formulário on-line. Os dados foram processados e codificados com apoio do software NVIVO, analisados por meio da técnica de Discurso do Sujeito Coletivo, e interpretados com base na Teoria dos Sintomas Desagradáveis. Resultados participaram homens entre 60 e 88 anos, de maioria autodeclarada heterossexuais e brancos. Durante os primeiros dois anos da pandemia da COVID-19, emergiram clusters de sintomas desagradáveis biopsicossociais na saúde de homens idosos como: picos de pressão alta, depressão, ansiedade e sedentarismo. O cenário pandêmico e o isolamento social foram considerados fatores influenciáveis situacionais para as diferentes dimensões dos sintomas. Como desempenho para a experiência de vivenciar os sintomas, foram considerados as consultas médicas remotas pela Telemedicina, interações afetivas virtuais e consumo de pornografia em sites eróticos. Conclusões e implicações para a prática a exposição sindêmica à COVID-19 deflagrou clusters de sintomas desagradáveis, de caráter biopsicossocial, na saúde de homens idosos brasileiros, o que requer gerenciamento pela Enfermagem.

Resumen Objetivo analizar los clusters de síntomas desagradables en hombres ancianos en la pandemia/sindemia por COVID-19. Método estudio cualitativo, multicéntrico, llevado a cabo entre marzo de 2021 y abril de 2022, han participado 94 hombres ancianos, que respondieron un formulario en línea. Los datos han sido procesados y codificados con el apoyo del software NVIVO, analizados por la técnica del Discurso del Sujeto Colectivo y la interpretación de los resultado embasada bajo la Teoría de los Síntomas Desagradables. Resultados han participado hombres entre 60 y 88 años, en su mayoría autodeclarados heterosexuales y blancos. Durante los dos primeros años de la pandemia de COVID-19, surgieron clusters de síntomas biopsicosociales desagradables en la salud de los hombres mayores, a ejemplo de: picos en la presión arterial alta; depresión; ansiedad y sedentarismo. El escenario de la pandemia y el aislamiento social fueron considerados influenciadores situacionales para las diferentes dimensiones de los síntomas y, como performance para la experiencia de vivenciar los sintomas se consideraron las consultas médicas remotas por la Telemedicina, interacciones afectivas virtuales y consumo de pornografía en sitios web eróticos. Conclusiones e implicaciones para la práctica la exposición sindémica a la COVID-19 desencadenó conglomerados de síntomas desagradables, de naturaleza biopsicosocial, en la salud de ancianos brasileños, que requieren manejo por parte de la Enfermería.

Abstract Objective To analyze clusters of unpleasant symptoms in older men with the COVID-19 pandemic/syndemic. Method A qualitative, multicenter study was carried out between March 2021 and April 2022, in which 94 older men who answered an online form participated. The data were processed and coded with the support of the NVIVO software, analyzed by the Collective Subject Discourse technique, and applied the Theory of Unpleasant Symptoms to interpret results. Results Men between 60 and 88 participated; most self-declared heterosexual and white. The pandemic scenario and social isolation were considered situational influencing factors for different dimensions of symptoms and, as a performance for the experience of living the symptoms, remote medical consultations by Telemedicine, virtual affective interactions, and consumption of pornography on erotic websites. Conclusions and implications for practice Syndemic exposure to COVID-19 triggered clusters of unpleasant symptoms, of a biopsychosocial nature, in the health of elderly Brazilian men, which requires management by Nursing.

Bioactive properties of Persea lingue Ness (Lauraceae) fruit and leaf extracts

Abstract Persea lingue Ness is a tree species that lives mainly in temperate forests of south-central Chile. Its leaves are used in ethnomedicine, the fruit is a drupe similar to that of the avocado and has not been studied. The aim of this study was to determine the cytotoxicity in leukemia cell and antibacterial activity, along with some chemical content characteristics of P. lingue fruit and leaf extracts. The antibacterial activity was determined by the inhibition of bacterial growth in liquid medium assay against Gram-positive and Gram-negative bacteria. The leukemia cell lines Kasumi-1 and Jurkat were used to evaluate the cytotoxic activity by using propidium iodide and AlamarBlue assays. Total phenolic, flavonoid, condensed tannin, alkaloid and lipid contents were evaluated in the fruit and in the leaf extracts. The antioxidant activity of both extracts were also elavaluated. Leaf extract presented the highest content of total phenols, condensed tannins and flavonoids, and also the highest antioxidant activity. While the fruit extract has a higher amount of lipids and alkaloids and the high antibacterial activity against Escherichia coli, Pseudomonas aeruginosa, Staphylococcus aureus, Bacillus megaterium and Micrococcus luteus. The leaf extract only showed activity against M. luteus. Concerning the cytotoxic activity, only the fruit extract showed cytotoxicity against the cell lines Jurkat and Kasumi-1. P. lingue fruit extract is a potential source of biologically active molecules for the development of new drugs to be used in some types of leukemia, as well as antibacterial agent.

Resumo Persea lingue Ness é uma árvore que vive principalmente na floresta temperada do centro-sul do Chile. As folhas são usadas na etnomedicina. O fruto é uma drupa similar ao abacate e que nunca foi pesquisada anteriormente. O objetivo deste estudo foi o de avaliar a citotoxicidade em células leucêmicas e as atividades antibacterianas, assim como algumas características químicas do extrato de fruto e da folha do P. lingue. As atividades antibacterianas foram determinadas pelo método da inibição do crescimento bacteriano em meio líquido empregando-se bactérias Gram-positivas e Gram-negativas. As linhagens celulares leucêmicas, Kasumi-1 e Jurkat foram usadas para avaliar a atividade citotóxica em ensaios empregando-se iodeto de propídio e AlamarBlue. Foram avaliados os teores totais de fenóis, flavonóides, taninos condensados, alcalóides e lipídeos presentes nos extratos das folhas e dos frutos. As atividades antioxidantes de ambos os extratos também foram avaliadas. O extrato das folhas foi o que apresentou o maior conteúdo de fenóis, taninos condensados e flavonóides totais e a maior atividade antioxidante. Já o extrato de fruto apresentou a maior quantidade de lipídios e alcaloides e a melhor atividade antibacteriana contra Escherichia coli, Pseudomonas aeruginosa, Staphylococcus aureus, Bacillus megaterium e Micrococcus luteus. Já o extrato das folhas apresentou apenas atividade contra M. luteus. Em relação à atividade citotóxica, apenas o extrato do fruto apresentou citotoxicidade contra as linhagens celulares Jurkat e Kasumi-1. Em resumo, o extrato do fruto de P. lingue é uma potencial fonte de moléculas com atividade biológica para o desenvolvimento de novos fármacos a serem utilizados em alguns tipos de leucemia, bem como agente antibacteriano.

Influência da sobrecarga, estresse e sintomas depressivos na saúde de idosos cuidadores: estudo longitudinal / Influencia de la carga, el estrés y los síntomas depresivos en la salud de los cuidadores de personas mayores: un estudio longitudinal / Influence of burden, stress and depressive symptoms on the health of older adult caregivers: a longitudinal study

Resumo Objetivo analisar o efeito da sobrecarga, do estresse e dos sintomas depressivos sobre as características de saúde de idosos cuidadores de idosos. Métodos estudo quantitativo e longitudinal com 127 idosos cuidadores. As variáveis utilizadas foram caracterização de saúde; sobrecarga; sintomas depressivos e estresse. Realizou-se modelo de regressão linear, teste de Poisson, com nível de significância de 5%. Resultados observou-se que um ponto a mais no escore na escala de sobrecarga aumenta em 0,030 o número de doenças (p=0,020) e risco de dor crônica (p=0,005); um ponto a mais no escore na escala de estresse aumenta em 0,058 o número de doenças (p=0,001) e risco para avaliação de saúde regular/ruim (p=<0,001) e dor crônica (p=<0,001); o aumento no escore na escala de sintomas depressivos aumenta o número de doenças (p=<0,001), risco de quedas (p=0,009), avaliação de saúde regular/ruim (p=<0,001) e dor crônica (p=<0,001). Conclusões e implicações para a prática estimativa de piora nos escores das variáveis psicológicas acarreta um risco para o agravamento de características de saúde física dos cuidadores. Com os resultados encontrados, observar-se a necessidade da criação de políticas públicas para os idosos cuidadores, a fim de propiciar uma melhor qualidade de vida.

Resumen Objetivo analizar el efecto de la sobrecarga, el estrés y los síntomas depresivos sobre las características de salud de los cuidadores de ancianos. Métodos estudio cuantitativo y longitudinal con 127 cuidadores de ancianos. Las variables utilizadas fueron caracterización de la salud; sobrecarga; Síntomas depresivos y estrés. Se realizó un modelo de regresión lineal, prueba de Poisson, con un nivel de significancia del 5%. Resultados se observó que un punto más en la puntuación de la escala de sobrecarga aumenta en 0,030 el número de enfermedades (p=0,020) y el riesgo de dolor crónico (p=0,005); un punto más en la puntuación de la escala de estrés aumenta en 0,058 el número de enfermedades (p=0,001) y el riesgo de evaluar regular/mala salud (p=<0,001) y dolor crónico (p=<0,001); el aumento de la puntuación en la escala de síntomas depresivos aumenta el número de enfermedades (p=<0,001), riesgo de caídas (p=0,009), valoración regular/mala de la salud (p=<0,001) y dolor crónico (p=<0,001). Conclusiones e implicaciones para la práctica la estimación del empeoramiento de las puntuaciones de las variables psicológicas conlleva un riesgo de empeoramiento de las características de salud física de los cuidadores. Con los resultados encontrados, se evidencia la necesidad de crear políticas públicas para los cuidadores de adultos mayores, con el fin de brindarles una mejor calidad de vida.

Abstract Objective to analyze the effect of burden, stress, and depressive symptoms on the health characteristics of older adult caregivers of older adults. Method A quantitative and longitudinal study was conducted with 127 older adult caregivers to analyze the effect of burden, stress, and depressive symptoms on their health characteristics. The variables assessed included health characterization, burden, depressive symptoms, and stress. A linear regression model and Poisson test were employed, with a significance level set at 5%. Results The findings revealed that an increase of one point in the burden scale score was associated with a 0.030 increase in the number of diseases (p=0.020) and an increased risk of chronic pain (p=0.005). Similarly, a one-point increase in the stress scale score was associated with a 0.058 increase in the number of diseases (p=0.001), as well as an increased risk of a poor subjective health assessment (p=<0.001) and chronic pain (p=<0.001). Furthermore, an increase in the score on the depressive symptoms scale was associated with an increase in the number of diseases (p=<0.001), risk of falls (p=0.009), poor subjective health assessment (p=<0.001), and chronic pain (p=<0.001). Conclusions and implications for practice The worsening estimate in the scores of psychological variables poses a risk to the deterioration of caregivers' physical health characteristics. The findings underscore the need for the development of public policies aimed at improving the quality of life for older adult caregivers.

Bioactive properties of Persea lingue Ness (Lauraceae) fruit and leaf extracts / Propriedades bioativas de extratos de folhas e frutos de Persea lingue Ness (Lauraceae)

Abstract Persea lingue Ness is a tree species that lives mainly in temperate forests of south-central Chile. Its leaves are used in ethnomedicine, the fruit is a drupe similar to that of the avocado and has not been studied. The aim of this study was to determine the cytotoxicity in leukemia cell and antibacterial activity, along with some chemical content characteristics of P. lingue fruit and leaf extracts. The antibacterial activity was determined by the inhibition of bacterial growth in liquid medium assay against Gram-positive and Gram-negative bacteria. The leukemia cell lines Kasumi-1 and Jurkat were used to evaluate the cytotoxic activity by using propidium iodide and AlamarBlue assays. Total phenolic, flavonoid, condensed tannin, alkaloid and lipid contents were evaluated in the fruit and in the leaf extracts. The antioxidant activity of both extracts were also elavaluated. Leaf extract presented the highest content of total phenols, condensed tannins and flavonoids, and also the highest antioxidant activity. While the fruit extract has a higher amount of lipids and alkaloids and the high antibacterial activity against Escherichia coli, Pseudomonas aeruginosa, Staphylococcus aureus, Bacillus megaterium and Micrococcus luteus. The leaf extract only showed activity against M. luteus. Concerning the cytotoxic activity, only the fruit extract showed cytotoxicity against the cell lines Jurkat and Kasumi-1. P. lingue fruit extract is a potential source of biologically active molecules for the development of new drugs to be used in some types of leukemia, as well as antibacterial agent.

Resumo Persea lingue Ness é uma árvore que vive principalmente na floresta temperada do centro-sul do Chile. As folhas são usadas na etnomedicina. O fruto é uma drupa similar ao abacate e que nunca foi pesquisada anteriormente. O objetivo deste estudo foi o de avaliar a citotoxicidade em células leucêmicas e as atividades antibacterianas, assim como algumas características químicas do extrato de fruto e da folha do P. lingue. As atividades antibacterianas foram determinadas pelo método da inibição do crescimento bacteriano em meio líquido empregando-se bactérias Gram-positivas e Gram-negativas. As linhagens celulares leucêmicas, Kasumi-1 e Jurkat foram usadas para avaliar a atividade citotóxica em ensaios empregando-se iodeto de propídio e AlamarBlue. Foram avaliados os teores totais de fenóis, flavonóides, taninos condensados, alcalóides e lipídeos presentes nos extratos das folhas e dos frutos. As atividades antioxidantes de ambos os extratos também foram avaliadas. O extrato das folhas foi o que apresentou o maior conteúdo de fenóis, taninos condensados e flavonóides totais e a maior atividade antioxidante. Já o extrato de fruto apresentou a maior quantidade de lipídios e alcaloides e a melhor atividade antibacteriana contra Escherichia coli, Pseudomonas aeruginosa, Staphylococcus aureus, Bacillus megaterium e Micrococcus luteus. Já o extrato das folhas apresentou apenas atividade contra M. luteus. Em relação à atividade citotóxica, apenas o extrato do fruto apresentou citotoxicidade contra as linhagens celulares Jurkat e Kasumi-1. Em resumo, o extrato do fruto de P. lingue é uma potencial fonte de moléculas com atividade biológica para o desenvolvimento de novos fármacos a serem utilizados em alguns tipos de leucemia, bem como agente antibacteriano.

Description of two new species of Bujurquina (Teleostei: Cichlidae) from the Bolivian Amazon

Two new species of Bujurquina are described from the Bolivian Amazon basin. The first new species inhabits the Beni River drainage and is distinguished from its congeners in the combination of the following characters: longer snout, deeper head, body and caudal peduncle, shorter pectoral fin, more scales in the E1 series, discontinuous longitudinal band, bars 5 and 6 not fused, preopercular spot and coloration pattern on flank scales absent. The second new species inhabits the Mamoré and Iténez river drainages, and differs from its congeners in the combination of the following characteristics: longer and deeper head, longer snout and pectoral fin, deeper caudal peduncle, fewer scales in the E1 series and lower lateral line, preopercular spot absent, bars 6 and 7 separated from longitudinal band and discontinuous longitudinal band. An identification key for species reported from Bolivia and complementary morphological data for B. oenolaemus and B. vittata are presented.

Se describen dos especies nuevas de Bujurquina para la cuenca Amazónica de Bolivia. La primera nueva especie habita la cuenca del Río Beni y se distingue de sus congéneres en la combinación de los siguientes caracteres: hocico más largo, cabeza, cuerpo y pedúnculo caudal más bajos, aleta pectoral más corta, mayor número de escamas en la serie E1, banda longitudinal discontinua, barras 5 y 6 no fusionadas, mancha preopercular y patrón de coloración en las escamas de los flancos ausentes. La segunda nueva especie habita las cuencas de los ríos Mamoré e Iténez, y se diferencia de sus congéneres en la combinación de las siguientes características: cabeza más larga y alta, hocico y aleta pectoral más largos, pedúnculo caudal más alto, menor número de escamas de la serie E1 y de la línea lateral inferior, ausencia de la mancha preopercular, barras 6 y 7 separadas de la banda longitudinal y banda longitudinal discontinua. Se presenta una clave de identificación de las especies de Bolivia y datos morfológicos complementarios de B. oenolaemus y B. vittata.

Diagnóstico del proceso de formación técnica en la lucha olímpica / Diagnóstico do processo de treinamento técnico na luta livre olímpica / Diagnosis of the technical training process in Olympic wrestling

RESUMEN Introducción: Los organismos internacionales y nacionales exigen un proceso de formación que facilite el acceso a los conocimientos técnicos, desde los métodos modernos de enseñanza, que sea inclusivo, equitativo y de calidad. Objetivo: En atención a ello, la investigación se orientó a diagnosticar el estado actual del proceso de formación técnica de las luchas olímpicas. Materiales y métodos: Con este propósito, se realizó un estudio longitudinal desde el año 2012 hasta 2021, seleccionándose como muestra a 18 directivos, 59 luchadores y 24 entrenadores. Se utilizaron dos teléfonos móviles para grabar y obtener las imágenes de los combates, desde donde se realizaron las observaciones de la técnica. Los métodos utilizados fueron el dialéctico-materialista, así como los de orden teórico y empíricos, se destacan la revisión de documentos, la entrevista, la encuesta y la observación, mientras como herramienta de constatación la triangulación metodológica, fundamental en el proceso de descripción del objeto de estudio. Resultados: Los procedimientos aplicados determinaron la existencia de dificultades en la dirección pedagógico-deportiva, el sistema de contenidos científico-técnicos y el análisis de factores claves de la técnica, en especial, con manejo del modelo acción (librería de video), el video-análisis (parámetros de ejecución), el factor común (selección de casos exitosos y no exitosos) y los documentos de trabajo (fichas técnicas y listado cotejo). Conclusiones: Finalmente, se declaran las pautas de un modelo didáctico para la formación de la técnica, con base en una elaboración sistémica de los contenidos científico técnicos y el análisis de factores claves, considerando las tecnologías de la información y las comunicaciones (Tic).

SÍNTESE Introdução: Organismos internacionais e nacionais exigem um processo de treinamento que facilite o acesso ao conhecimento técnico, a partir de métodos modernos de ensino, que seja inclusivo, equitativo e de qualidade. Objetivo: Em vista disto, a pesquisa teve como objetivo diagnosticar o estado atual do processo de treinamento técnico na luta livre olímpica. Materiais e métodos: Para este fim, foi realizado um estudo longitudinal de 2012 a 2021, selecionando 18 gerentes, 59 lutadores e 24 treinadores como amostra. Dois telefones celulares foram usados para gravar e obter as imagens dos surtos, de onde foram feitas as observações da técnica. Os métodos utilizados foram dialético-materialista, bem como métodos teóricos e empíricos, incluindo revisão de documentos, entrevista, levantamento e observação, enquanto que a triangulação metodológica foi utilizada como ferramenta de verificação, fundamental no processo de descrição do objeto de estudo. Resultados: Os procedimentos aplicados determinaram a existência de dificuldades na direção pedagógico-desportiva, o sistema de conteúdo técnico-científico e a análise de fatores-chave da técnica, em particular, com o manuseio do modelo de ação (videoteca), a vídeo-análise (parâmetros de execução), o fator comum (seleção de casos de sucesso e insucesso) e os documentos de trabalho (fichas técnicas e lista de verificação). Conclusões: Finalmente, são apresentadas as diretrizes de um modelo didático de treinamento técnico, baseado em uma elaboração sistêmica dos conteúdos técnico-científicos e na análise de fatores-chave, considerando as tecnologias de informação e comunicação (TIC).

ABSTRACT Introduction: International and national organizations demand a training process that facilitates access to technical knowledge, from modern teaching methods, that is inclusive, equitable and of quality. Objective: In response to this, the research was aimed at diagnosing the current state of the technical training process of Olympic wrestling. Materials and methods: For this purpose, a longitudinal study was carried out from 2012 to 2021, selecting 18 managers, 59 wrestlers and 24 coaches as a sample. Two mobile phones were used to record and obtain the images of the combats, from where the observations of the technique were made. The methods used were the dialectical-materialist, as well as those of a theoretical and empirical nature, highlighting the review of documents, the interview, the survey and the observation, while as a verification tool the methodological triangulation, fundamental in the process of describing the object of study. Results: The applied procedures determined the existence of difficulties in the pedagogical-sports direction, the scientific-technical content system and the analysis of key factors of the technique, especially, with handling of the action model (video library), the video -analysis (execution parameters), the common factor (selection of successful and unsuccessful cases) and working documents (technical sheets and comparison list). Conclusions: Finally, the guidelines of a didactic model for the trainig of the technique are declared, based on a systemic elaboration of the scientific-technical contents and the analysis of key factors, considering the information and communication technologies (ICT).

Evaluación del consumo de macronutrientes y micronutrientes por individuos prediabéticos / Evaluation of consumption of macronutrients and micronutrients by pre-diabetic individuals

Resumen Introducción La alimentación es una importante estrategia para el control de la glucemia, así como para reducir/eliminar el riesgo del desarrollo de la diabetes. Objetivo Este artículo evaluó el consumo de macronutrientes y micronutrientes de individuos prediabéticos de Santa Cruz do Sul, RS, Brasil. Método El consumo de nutrientes se ha determinado en el programa DietWin® y la prevalencia de adecuación de los macronutrientes fue clasificada según la Sociedad Brasileña de Diabetes y la ingesta inadecuada de micronutrientes por la Dietary Reference Intake. Resultados Los prediabéticos presentaron consumo excesivo de proteínas y grasas totales (28,1% y 31,6%, respectivamente), así como de ácidos grasos saturados y colesterol (91,2% y 35,1%, respectivamente). La ingesta de fibras se presentó insuficiente en 93%. Considerando el consumo de micronutrientes, la vitamina D, el calcio y el selenio se presentaron con una insuficiencia de más del 80%. Conclusión La dieta habitual de individuos prediabéticos demuestra ser excesiva en proteínas y en grasas totales que, relacionado al consumo excesivo de ácidos grasos saturados y colesterol, puede aumentar el riesgo cardiovascular. Esto, junto a la ingestión pobre en fibras e inadecuada en algunos micronutrientes, tales como vitamina D, calcio y selenio pueden afectar el control de la glucemia de estos individuos.

Abstract: Background The diet is an important strategy for glycemic control as well as reducing/eliminating the risk of developing diabetes. Objective This article evaluated the consumption of macronutrients and micronutrients of pre-diabetic individuals from Santa Cruz do Sul, in the state of Rio Grande do Sul (RS), Brazil. Method The nutrients intake was determined in the DietWin® program and the evaluation of the prevalence of adequacy macronutrients was classified according to Guidelines of the Brazilian Society of Diabetes and the evaluation of inadequacy of the micronutrients intake by Dietary Reference Intake were used. Results The pre-diabetic individuals had excessive protein and total fat intake (28.1% and 31.6%, respectively), as well as saturated fatty acids and cholesterol (91.2% and 35.1%, respectively). The fibers intake in this population showed an inadequacy of 93.0%. Considering the micronutrients intakes, vitamin D, calcium and selenium presented an insufficiency greater than 80.0%. Conclusion The usual diet of pre-diabetic individuals showed to be excessive for proteins and total fats, which associated with excessive consumption of saturated fatty acids and cholesterol, can increase cardiovascular risk. This, coupled with inadequate consumption of some micronutrients such as vitamin D, calcium and selenium and low fiber can affect the control of glycemia in these individuals.

Red Flags of Dating Violence Among College Students: From the Perspective of Campus Service Providers in Costa Rica Señales de alerta de la violencia en el noviazgo entre estudiantes universitarios: Desde la perspectiva de los proveedores de servicios estudiantiles en Costa Rica.

Dating violence has negative consequences on the well-being of college students. Thus, it is imperative that providers of student-oriented services can detect and respond to dating violence. Although many universities worldwide have implemented dating violence screenings protocols, they are not yet common practice in Costa Rica. As a result, there is inadequate recognition of this problem, so it remains unaddressed. Therefore, this qualitative descriptive study explored the perceptions of professionals working in student-oriented services in Costa Rica about dating violence warning signs exhibited by college students. 29 providers from four public universities were interviewed, and three main areas were identified from a content analysis: the process that providers follow to identify dating violence, the visible signs that victims display, and the self-protective strategies that victims employ to hide their abuse. These findings are important for researchers and practitioners wanting to improve dating violence screening instruments for the Central American context. Resumen La violencia en el noviazgo tiene consecuencias negativas en el bienestar de los estudiantes universitarios. Por lo tanto, es determinante que los proveedores de servicios orientados a los estudiantes universitarios puedan detectar y responder a la violencia en el noviazgo. Aunque muchas universidades en todo el mundo han implementado protocolos de detección de violencia en el noviazgo, aunque aún no es una práctica común en Costa Rica. Como resultado, el reconocimiento de este problema es insuficiente y sigue sin abordarse. Por lo tanto, este estudio descriptivo cualitativo exploró las percepciones de los profesionales que trabajan en servicios orientados a los estudiantes universitarios en Costa Rica sobre las señales de alerta de violencia en el noviazgo manifestadas exhibidas por los estudiantes universitarios. Se entrevistó a 29 proveedores de cuatro universidades públicas. A partir de un análisis de contenido se identificaron tres temas principales: el proceso que los proveedores siguen para identificar la violencia en el noviazgo, los signos visibles que muestran las víctimas y las estrategias de autoprotección que las víctimas emplean para ocultar su abuso. Estos hallazgos son importantes para los investigadores y profesionales que desean mejorar los mecanismos de detección temprana de la violencia en el noviazgo para el contexto universitario.

Assessment and associations between quality of life and risk of suicide / Avaliações e associações entre qualidade de vida e risco de suicídio / Evaluaciones y asociaciones entre calidad de vida y riesgo de suicidio

This study aimed to verify the extent to which the levels of quality of life are related to and influence suicide risk indices. A descriptive, correlational, quantitative research was performed. A non-probabilistic sample was used which was composed of 11,863 Brazilian participants all over 18 years old, who responded to the Risk Assessment Suicide Scale (RASS) and the World Health Organization Quality of Life BREF Instrument (WHOQOL-BREF), and whose data were analyzed by using descriptive statistics, the Spearman correlation and multiple linear regression using the Statistical Package for Social Sciences (SPSS). The results identify negative, moderate and significant correlations between the constructs, and that the domains of quality of life influence 47.8% of the variations in the suicide risk indices, confirming that the psychological domain is the most relevant within the explanatory model created. The conclusion is that there is a the need for public policies to improve the quality of life and prevent suicide (AU).

Este estudo objetivou verificar em que medida os níveis de qualidade de vida se relacionam e influenciam os índices de risco de suicídio. Realizou-se uma pesquisa descritiva, correlacional, de abordagem quantitativa. Contou-se com uma amostra não probabilística composta por 11.863 participantes - brasileiros e maiores de 18 anos, que responderam à Risk Assessment Suicide Scale (RASS) e ao Word Health Organization Quality of Life Instrument Bref(WHOQOL-bref), cujos dados foram analisados por meio de estatística descritiva, correlação de Spearman e regressão linear multivariada pormeio do Statistical Package for Social Science (SPSS). Os resultados identificam correlações negativas, moderadas e significativas entre os construtos; e que os domínios de qualidade de vida influenciam em 47,8% as variações nos índices de risco de suicídio, constatando que o domínio psicológico é o mais relevante dentro do modelo explicativo criado. Conclui-se a necessidade de políticas públicas para melhoria da qualidade de vida e prevenção de suicídio (AU).

Este estudio objetivó comprobar hasta qué medida los niveles de calidad de vida se relacionan e influyen en las tasas de riesgo de suicidio. Se realizó una investigación descriptiva, correlacional y cuantitativa. Hubo una muestra no probabilística compuesta por 11.863 participantes brasileños mayores de 18 años, que respondieron a la Risk Assessment Suicide Scale (RASS) y al Word Health Organization Quality of Life Instrument Bref(WHOQOL-bref), cuyos datos fueron analizados mediante estadística descriptiva, correlación de Spearman y regresión lineal multivariante en Statistical Package for Social Science (SPSS). Los resultados identifican correlaciones negativas, moderadas y significativas entre los constructos; y que los dominios de calidad de vida influyen en un 47,8% en las variaciones de los índices de riesgo de suicidio, encontrando que el dominio psicológico es el más relevante dentro del modelo explicativo creado. Estos hallazgos revelan la necesidad de políticas públicas para mejorar la calidad de vida y prevenir el suicidio (AU).

Dificultades de los tutores con deficiencia en la atención médica veterinaria de sus animales / Difficulties of guardians with deficiency in the veterinary medical care of their animals / Dificuldades de tutores com deficiência no atendimento médico veterinário de seus animais

A presente articulação versa sobre as dificuldades enfrentadas por pessoas com deficiência (PcD), no atendimento médico veterinário. PcD representam 15% da população mundial, e enfrentam inúmeros desafios em sua rotina. A Constituição dá direitos iguais a todos os cidadãos brasileiros inclusive a PcD, entretanto na prática seus direitos de ir e vir são lesados, pois encontram dificuldades de acessibilidade, comunicação e inclusão. O presente trabalho tem como objetivo apresentar, os desafios ergonômicos encontrados por tutores de animais domésticos que são PcD no município de Mineiros/GO, para acesso ao atendimento médico veterinário, bem como analisar os pontos principais que dificultam esse atendimento. Essa pesquisa contou com a realização de duas etapas distintas, sendo a primeira etapa referente a análise de acessibilidade aos estabelecimentos veterinários do município de Mineiros, e posteriormente a aplicação de questionário semiestruturado, online, voltado para as dificuldades enfrentadas por tutores com deficiência ao atendimento médico veterinário, sendo composto de oito alternativas, disponibilizado através de link em rede social de colaboradores do projeto. Por meio desse estudo, foi possível identificar dificuldades específicas em questão de transitabilidade e comunicabilidade enfrentadas por PcD, em atendimento médico veterinário e outros serviços veterinários, no

Aspectos envolvidos na contratação e manutenção do personal trainer: capitais em jogo / Aspects involved in hiring and maintaining a personal trainer: capitals at stake / Aspectos involucrados en la contratación y mantenimiento de un entrenador personal: capitales en juego

RESUMO Objetivou-se analisar os aspectos que influenciam na contratação e na manutenção do personal trainer, no ponto de vista dos clientes. Para a composição da pesquisa, usuários do serviço responderam questionários e entrevistas. Detectou-se que vários capitais estão em jogo, mas os clientes enfatizaram aspectos simbólicos relativos ao conhecimento, segurança e confiança no seu trabalho como diferenciais. Ao invés de valorizar o capital corporal, como apontado em outros estudos, a investigação observou a emergência do capital perfil como elemento de distinção.

ABSTRACT The objective was to analyze the aspects that influence the hiring and maintenance of the personal trainer, from the clients' point of view. For the composition of the survey, service users answered questionnaires and interviews. It was detected that several capitals are at stake, but clients emphasized symbolic aspects related to knowledge, security and confidence in their work as differentials. Instead of valuing body capital, as pointed out in other studies, the investigation observed the emergence of profile capital as an element of distinction.

RESUMEN El objetivo fue analizar los aspectos que influyen en la contratación y mantenimiento del entrenador personal, desde el punto de vista de los clientes. Para la composición de la encuesta, los usuarios del servicio respondieron cuestionarios y entrevistas. Se detectó que varios capitales están en juego, pero los clientes enfatizaron aspectos simbólicos relacionados con el conocimiento, la seguridad y la confianza en su trabajo como diferenciales. En lugar de valorar el capital corporal, como se señaló en otros estudios, la investigación observó el surgimiento del capital de perfil como elemento de distinción.

Intervención educativa sobre cuidado espiritual para estudiantes de licenciatura en enfermería y obstetricia / Spiritual care educational intervention for undergraduate nursing and midwifery students

Para los estudiantes de enfermería es indispensable la formación en el cuidado espiritual para identificar y satisfacer las propias necesidades espirituales y las de las personas que cuidarán, la dimensión espiritual es inherente al ser humano, para abordarla se requieren conocimientos que lleven a la reflexión e interés en la atención desde una perspectiva integral.

For nursing students, training in spiritual care is essential to identify and satisfy their own spiritual needs and those of the people they will care for; the spiritual dimension is inherent to the human being, and to address it requires knowledge that leads to reflection and interest in care from an integral perspective.

Análisis temporal del covid-19 en Colombia: indicadores asociados y modelización / Temporal analysis of covid-19 in Colombia: associated indicators and modeling

AbstractIntroduction. This study shows statistical information regarding COVID-19 in Colombia up to this date (March 1-2022). Specifically, the daily, monthly and cumulative evolution of infections and deaths, correlated with the distribution of the population according to age and gender. Objective. Show statistical information about COVID-19 that allows help to plan and design, in future Pandemics, public health policy strategies in Colombia. Methods. Daily information since the official declaration of Pandemic in Colombia (March 16 ­ 2020) was obtained by the National Health Institute (INS) and was organized in a database in order to conduct respective analysis. This information was compared to similar studies obtained based on the bibliographical review. Results and Conclusions. Results and conclusions are similar to those found in the reference literature: most part of those dead by COVID-19 are of senior age and male gender. Regarding Case Fatality Rate (CFR), it notoriously increases with age. The most vulnerable population displays an average age of ≥ 52.8 years. The less vulnerable population are young persons under 30 years of age, but specifically, those within the age range of 10 and 20 years. Gompertz and Logistic models can mathematically simulate the evolution of deaths and the evolution of CFR according to age

ResumenIntroducción. Este estudio muestra información estadística sobre el COVID-19 en Colombia a la fecha (1 de marzo de 2022). Específicamente, la evolución diaria, mensual y acumulada de contagios y defunciones, correlacionada con la distribución de la población según edad y sexo. Objetivo. Mostrar información estadística sobre COVID-19 que permita ayudar a planificar y diseñar, en futuras Pandemias, estrategias de política de salud pública en Colombia. Metodología. La información diaria desde la declaratoria oficial de Pandemia en Colombia (16 de marzo de 2020) fue obtenida del Instituto Nacional de Salud (INS) y fue organizada en una base de datos para realizar los análisis respectivos. Esta información se comparó con estudios similares obtenidos a partir de revisión bibliográfica. Resultados y conclusiones. Los resultados y conclusiones son similares a los encontrados en la literatura de referencia: la mayor parte de los fallecidos por COVID-19 son de edad avanzada y sexo masculino. En cuanto a la tasa de letalidad (CFR), ésta aumenta notoriamente con la edad. La población más vulnerable presenta una edad promedio ≥ 52.8 años. La población menos vulnerable son los jóvenes menores de 30 años, pero específicamente, los que se encuentran en el rango de edad de 10 y 20 años. Los modelos Gompertz y Logistic pueden simular matemáticamente la evolución de las muertes y la evolución de la CFR según la edad.

Clave I de la oclusión según los criterios de Andrews y los trastornos temporomandibulares / Key I of occlusion according to the Andrews criteria and temporomandibular disorders / Chave I da oclusão de acordo com os critérios de Andrews e distúrbios temporomandibulares

RESUMEN Introducción: El estudio de la oclusión y su papel en la etiología de los trastornos temporomandibulares ha sido un tema controvertido y de interés en el campo estomatológico. Objetivo: Determinar la relación entre la oclusión, según clave I de los criterios de Andrews y los trastornos temporomandibulares. Método: Se realizó un estudio observacional, descriptivo, de corte transversal a estudiantes de la carrera de Estomatología en la Clínica Estomatológica Docente Provincial de la ciudad de Sancti-Spíritus, en el periodo comprendido de septiembre de 2018 a septiembre de 2019. El universo fue de 42, la muestra aleatoria simple fue conformada por 40 estudiantes, los que respondían a los criterios de inclusión. Las variables de estudio fueron: presencia de trastorno temporomandibular, relación de molares, de caninos y coincidencia de las líneas media. Se utilizaron métodos del nivel teórico, empírico, estadísticos y matemáticos. Resultados: El 52,5 % de los pacientes presentó trastornos temporomandibulares, de los cuales, la relación de molares era bilateral en el 80 %. Con respecto a la relación de caninos, todos los afectados presentaron relación de mesio, disto o combinación de ellas. La mayoría de los no afectados (89,5 %) tenía coincidencia de las líneas media. Conclusiones: Se constata que cualquier alteración en la oclusión dentaria según los criterios de Andrews tendrán consecuencias en el sistema estomatognático y, por tanto, en la aparición de los trastornos temporomandibulares.

ABSTRACT Introduction: The study of occlusion and its role in the etiology of temporomandibular disorders has been a controversial topic of interest in the stomatological field. Objective: To determine the relationship between occlusion, according to key I of the Andrews criteria, and temporomandibular disorders. Method: An observational, descriptive, cross-sectional study was carried out on students of dentistry at the Clínica Estomatológica Docente Provincial of the city of Sancti-Spíritus, in the period from September 2018 to September 2019. The population was of 42 students, the simple random sample consisted of 40 of them, those who responded to the inclusion criteria. The study variables were: presence of temporomandibular disorder, canines and molars ratio and coincidence of dental midlines. Methods of the theoretical, empirical, statistical and mathematical levels were used. Results: 52.5% of the patients presented temporomandibular disorders, of which the molar relationship was bilateral in 80%. Regarding the relationship of canines, all those affected presented a relationship of mesio, disto or a combination of them. Most of the unaffected (89.5%) had midline coincidence. Conclusions: It is found that any alteration in dental occlusion according to the Andrews criteria will have consequences on the stomatognathic system and, therefore, on the appearance of temporomandibular disorders.

RESUMO Introdução: O estudo da oclusão e seu papel na etiologia dos distúrbios temporomandibulares tem sido um tema controverso e de interesse no campo estomatológico. Objetivo: Determinar a relação entre oclusão, de acordo com a chave I dos critérios de Andrews, e distúrbios temporomandibulares. Método: Foi realizado um estudo observacional, descritivo e transversal com alunos da carreira de Estomatologia da Clínica Estomatológica Docente Provincial da cidade de Sancti Spíritus, no período de setembro de 2018 a setembro de 2019. O universo foi de 42, a amostra aleatória simples foi composta por 40 alunos, aqueles que responderam aos critérios de inclusão. As variáveis de estudo foram: presença de disfunção temporomandibular, relação de molares, caninos e coincidência das linhas médias. Foram utilizados métodos dos níveis teórico, empírico, estatístico e matemático. Resultados: 52,5% dos pacientes apresentavam disfunção temporomandibular, sendo a relação molar bilateral em 80%. Sobre a relação dos caninos, todos os afetados apresentaram relação de mesio, disto ou uma combinação dos dois. A maioria dos não afetados (89,5%) teve uma coincidência das linhas médias. Conclusões: Verifica-se que qualquer alteração da oclusão dentária de acordo com os critérios de Andrews terá consequências no sistema estomatognático e, portanto, no aparecimento dos distúrbios temporomandibulares.

Taxonomy of family Benthopectinidae (Echinodermata: Asteroidea) in the Mexican waters of the Gulf of Mexico

Introduction: The family Benthopectinidae is composed of deep-sea sea stars distributed in eight genera and approximately 70 valid species. So far, only five species of this family have been reported for the Mexican waters of the Gulf of Mexico. Objective: To provide an updated local taxonomy of this family. Methods: A total of 566 specimens deposited in the Echinoderm National Collection, Instituto de Ciencias del Mar y Limnología, Universidad Nacional Autónoma de México, and the National Museum of Natural History, Smithsonian Institution, collected from 1952 to 2015, were taxonomically examined. Results: We present descriptions, photographs, and an illustrated dichotomous key for Benthopecten simplex simplex, Cheiraster (Barbadosaster) echinulatus, Cheiraster (Cheiraster) planus, Cheiraster (Christopheraster) blakei, and Cheiraster (Christopheraster) mirabilis in the region. Conclusions: The five studied species represent 6 % of the world biodiversity of the family and can now be identified with the illustrated key.

Introducción: La familia Benthopectinidae está compuesta por estrellas de mar de profundidad distribuidas en ocho géneros y 70 especies válidas aproximadamente. Hasta el momento, se han reportado cinco especies de esta familia para las aguas mexicanas del Golfo de México. Objetivo: Realizar una actualización local de la taxonomía de esta familia. Métodos: Se examinaron un total de 566 especímenes depositados en la Colección Nacional de Equinodermos, Instituto de Ciencias del Mar y Limnología, Universidad Nacional Autónoma de México y el Museo Nacional de Historia Natural, Smithsonian Institution, recolectados de 1952 a 2015. Resultados: Presentamos descripciones, fotografías y una clave dicotómica ilustrada para Benthopecten simplex simplex, Cheiraster (Barbadosaster) echinulatus, Cheiraster (Cheiraster) planus, Cheiraster (Christopheraster) blakei, y Cheiraster (Christopheraster) mirabilis en la región. Conclusiones: Las cinco especies estudiadas representan el 6 % de la diversidad mundial de la familia y ahora pueden ser identificadas con la clave ilustrada proporcionada.