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La presente investigación tuvo por objetivo analizar la violencia política contra las mujeres en las elecciones 2021. Se utilizó el enfoque cualitativo con el cual se estudiaron dos programas radiales de la ciudad de Santo Domingo que cuentan con mayor audiencia. Para la recolección de datos se aplicaron entrevistas a expertas en temas de género y a candidatas que participaron en el proceso electoral. De igual manera, se observó la información publicada en redes sociales por ambos medios en el 2020 a partir de la pre-campaña electoral. Se utilizó el software Metricool para categorizar, codificar y tabular las entrevistas; y el estudio de casos para interpretar la información. Como principales hallazgos se identificaron formas de violencia al momento de abordar las entrevistas con las candidatas por parte de los entrevistadores, tales como: el uso del lenguaje, la confrontación, el número de entrevistadas y el reducido tiempo de entrevista. También se observó la presión permanente que ejercen los periodistas al momento de abordar los temas con las candidatas, los cuales carecen de relevancia política y social al no responder a las propuestas de campaña sino a acciones de sus vidas privadas

Objetivo: Estimar la prevalencia y el nivel de riesgo de adición a teléfonos inteligentes en una muestra de adolescentes. Métodos: Estudio de tipo observacional, prospectivo y transversal, realizado en la ciudad de Ica, Perú. Participaron 120 adolescentes mujeres de 13 a 17 años de una Institución Educativa pública. Se recolectaron características generales y se administró la Escala de adicción a teléfonos inteligentes de 10 preguntas. Se describieron las variables del estudio y se aplicó Chi-cuadrado para evaluar diferencias. Resultados: De las participantes el 13,9% tienen adicción a los teléfonos celulares inteligentes y el 54,1% se encuentran en riesgo alto de dependencia. Presentan mayor riesgo de adicción a estos dispositivos, quienes tuvieron COVID-19, no tuvieron familiar fallecido por COVID-19, ni miedo a la COVID-19, tienen conflictos familiares en el hogar, sentimiento de tristeza, ansiedad o depresión, sentimientos de vergüenza, ha sufrido alguna vez de bullying, no se siente rechazada por la sociedad, no prefiere estar en aislamiento obligatorio por la pandemia por COVID-19, no prefiere las clases virtuales y de 16 a 17 años; sin embargo, las diferencias no resultaron significativas. Conclusiones: La prevalencia y el riesgo de adicción a los teléfonos móviles inteligentes es alta; existen variables generales potencialmente modificables que podrían disminuir el riesgo de dependencia al Smartphone.

Objetivo: Verificar que la estructura factorial de los datos observados estén en correspondencia con la estructura factorial teórica de la empatía. Estimar y comparar los niveles de empatía en las especialidades médicas evaluadas. Materiales y métodos: Estudio realizado en el cantón de Cuenca (Ecuador) en 2019. Diseño descriptivo y transversal. La muestra estuvo constituida por 223 médicos que trabajaban en el sector público, quienes respondieron voluntariamente la Escala de Empatía Médica de Jefferson. Variables dependientes: niveles de empatía y sus dimensiones. Independientes: género, nivel de atención y especialidad. Se estimó la normalidad y homocedasticidad, Análisis Factorial Confirmatorio, Invarianza entre grupos, análisis de varianza trifactorial y de un factor, t-Student y d de Cohen. El nivel de significación fue α≤ .05. Resultados: Se observa una adecuada consistencia interna, se confirma el modelo de tres dimensiones del instrumento original. No existen diferencias entre los géneros (p> .05), pero sí entre los tipos de atención y entre las especialidades (p< .05). Los datos observados tienen la estructura factorial teórica asociada al instrumento empleado en la medición de la empatía. Conclusión: El análisis multigrupo permite asumir invarianza factorial de la empatía entre los géneros, sin que se logre especificar un modelo según tipos de atención al paciente. Los niveles de empatía global fueron mayores en la atención primaria en relación con la hospitalaria y mayor en las especialidades de Pediatría y Medicina Familiar (unidas).

Objective: To explore the distribution of general and particular levels of empathy among the different family functioning styles of medical students of the University of Azuay in the city of Cuenca, Ecuador. Materials and methods: Exploratory and cross-sectional study. Student empathy levels were measured through the Jefferson Medical Empathy Scale, S-version in Spanish and family functioning through the Family Functioning Scale Faces-20 in a sample of 278 medical students. The comparison of data was carried out by means of analysis of bifactorial variance model III. The level of significance used was ?? 0.05 and 1- ? ? 0.20. Results: The analysis of the general empathy variance was significant (p 0.05). On the other hand, it was found that extreme family functioning styles have empathy values ??greater than the intermediate style, with significant differences between them (p

This article summarises the activities of the Bacterial Viruses Subcommittee of the International Committee on Taxonomy of Viruses for the period of March 2021−March 2022. We provide an overview of the new taxa proposed in 2021, approved by the Executive Committee, and ratified by vote in 2022. Significant changes to the taxonomy of bacterial viruses were introduced: the paraphyletic morphological families Podoviridae, Siphoviridae, and Myoviridae as well as the order Caudovirales were abolished, and a binomial system of nomenclature for species was established. In addition, one order, 22 families, 30 subfamilies, 321 genera, and 862 species were newly created, promoted, or moved.

Lawsuits due to patient perception of inappropriate medical actions are a growing reality in medical practice, which entails widespread concern in the medical community. Lawsuits often entail additional circumstances beyond the primary concern of preventing or sanctioning acts of medical negligence. CETREMI proposes various recommendations aimed at legal and medical professionals to improve this circumstance and avoid harming the doctor-patient relationship.Las demandas judiciales por la percepción del paciente de una actuación médica inadecuada son una realidad creciente en la práctica médica, la cual entraña una preocupación extendida en el gremio médico. Las demandas judiciales frecuentemente conllevan circunstancias adicionales a la primaria preocupación de prevenir o sancionar actos de negligencia médica. CETREMI emite algunas recomendaciones a los profesionales jurídicos y médicos para mejorar esta situación y evitar daños en la relación médico-paciente.

BACKGROUND: Persistent impairment of pulmonary function and exercise capacity has been known to last for months or even years in the survivors who recovered from other coronavirus pneumonia. Some reports showed that subjects with coronavirus disease 2019 pneumonia after being discharged could have several sequelae, but there are few studies on gas exchange and exercise capacity complications in these subjects. AIMS: To describe residual gas exchange abnormalities during recovery from coronavirus disease 2019 pneumonia. METHODS: In an observational study, ∼90 d after onset of disease, we scheduled almost 200 subjects for an out-patient visit with pulmonary function testing and computed tomography of the lungs. Lung mechanics by using body plethysmography, gas exchange with diffusing lung capacity for carbon monoxide determined by the single-breath technique (DLCOsb) and diffusing lung capacity for nitric oxide determined by the single-breath technique (DLNOsb), and exercise ability by using the 6-min walk test (6MWT) were measured in the subjects. The results were compared between those who required invasive mechanical ventilation and those who did not. RESULTS: A total of 171 subjects were included, the majority (96%) had signs of residual pneumonia (such as an excess of high attenuation areas) on computed tomography of the lungs. The DLCOSB results were below the lower limit of the normal range in 29.2% of the subjects; during the 6MWT, 67% experienced oxygen desaturation ( S pO 2 ) > 4%; and, in 81 (47%), the dropped below 88%. Subjects who required invasive mechanical ventilation (49.7%) were more likely to have lower lung volumes, more gas exchange abnormality, less exercise capacity and more radiologic abnormality. CONCLUSIONS: Subjects who recovered from severe COVID-19 pneumonia continued to have abnormal lung function and abnormal radiologic findings.

Introduction: Empathy is a quality that allows dentists to build an intersubjective relationship with their patients, which, among other benefits, contributes to the effectiveness of the treatment. Objective: To determine whether there is variability in empathy levels between two populations of dental students and to describe theoretically the general implications of this variability for intervention strategies. Materials and methods: Exploratory cross-sectional study. The study population consisted of 1st-5th year dental students from the Universidad Santiago de Cali, Colombia (n=610; N=647) and the Universidad San Sebastián, Chile (n=535; N=800). In both groups, empathy was measured using the Jefferson Scale of Empathy (S-Version) Scale. Descriptive statistics (mean and standard deviation) were used for data analysis. Internal consistency of data was estimated using Cronbach's alpha and the intraclass correlation coefficient. A factorial analysis of variance was performed, and three factors were studied: University (U), Course (C), and Sex (S). The statistical significance level used was α≤ 0.05 and β ≤0.20. Results: Differences in empathy level and in some of its three dimensions were observed between students from both universities and among courses (lst-5th year). No differences were found between sexes. Conclusions: There is variability in empathy levels among dental students from both universities. Thus, the implementation of specific empathy intervention strategies in each dental medicine program offered in Latin America is required to increase empathy levels in this population. Resumen Introducción. La empatía es un atributo que permite a los odontólogos establecer una relación intersubjetiva con sus pacientes, lo que contribuye a un tratamiento exitoso, entre otros beneficios. Objetivo. Determinar si hay variabilidad en los niveles de empatía entre dos poblaciones de estudiantes de odontología y describir teóricamente las implicaciones generales de esta variabilidad en estrategias de intervención. Materiales y métodos. Estudio exploratorio transversal. La población de estudio consistió de estudiantes de odontología de 1er a 5to año de la Universidad Santiago de Cali, Colombia (n=610; N=647) y la Universidad San Sebastián, Chile (n=535; N=800). En ambos grupos, la empatía se midió con la Escala de Empatía Médica de Jefferson (Versión S). Para el análisis de los datos se utilizó estadística descriptiva (media y desviación estándar). La consistencia interna de los datos se estimó mediante el coeficiente alfa de Cronbach y el coeficiente de correlación intraclase. Se realizó un análisis de varianza factorial: tres factores estudiados: Universidad (U), Curso (C) y Sexo (S). El nivel de significancia estadística utilizado fue de α≤0.05 y β≤0.20. Resultados. Se observaron diferencias en el nivel de empatía y algunas de sus tres dimensiones entre los estudiantes de ambas universidades y entre los cursos (1er-5to año). No se observaron diferencias entre sexos. Conclusiones. Existe variabilidad en los niveles de empatía entre los estudiantes de ambas universidades. Para aumentar los niveles de empatía en esta población en Latinoamérica se requiere implementar estrategias específicas de intervención empática en cada programa de odontología ofrecido en la región.

Bacteriophages are considered the most abundant biological entities on earth, and they are able to modulate the populations of their bacterial hosts. Although the potential of bacteriophages has been accepted as an alternative strategy to combat multidrug-resistant pathogenic bacteria, there still exists a considerable knowledge gap regarding their genetic diversity, which hinders their use as antimicrobial agents. In this study, we undertook a genomic and phylogenetic characterization of the phage Ab11510-phi, which was isolated from a multidrug-resistant Acinetobacter baumannii strain (Ab11510). We found that Ab11510-phi has a narrow host range and belongs to a small group of transposable phages of the genus Vieuvirus that have only been reported to infect Acinetobacter bacteria. Finally, we showed that Ab11510-phi (as well as other vieuvirus phages) has a high level of mosaicism. On a broader level, we demonstrate that comparative genomics and phylogenetic analysis are necessary tools for the proper characterization of phage diversity.

La cistitis enfisematosa es una complicación de las infecciones del tracto urinario de baja incidencia, así como una rara causa de perforación vesical. Generalmente se presenta en pacientes diabéticos y se caracteriza por la presencia de gas en el lumen o pared de la vejiga; puede ser asintomática o llegar a causar un estado crítico de choque séptico. Se debe tener presente este diagnóstico diferencial en pacientes inmunosuprimidos con antecedentes de infecciones en las vías urinarias, para así poder solicitar los exámenes complementarios necesarios y realizar un adecuado diagnóstico. Se presenta a un paciente femenino de 59 años, diabética no controlada, con cistitis enfisematosa complicada con perforación vesical con imágenes típicas por tomografía, y su manejo quirúrgico.

Due to sanitary restrictions secondary to the COVID-19 pandemic, various interactions between the pharmaceutical industry and physicians have changed. One of them has been the method for promoting medicinal products through academic meetings around diseases of financial interest. A recent modality has been unilateral promotion by the pharmaceutical industry through academic events with the invitation of so-called "experts" for the promotion of a specific drug. These meetings are often biased not towards optimal care of a disease, but rather towards commercial promotion of a specific drug, which may or may not be the best option, without considering associated therapeutic alternatives. The Committee of Ethics and Transparency in the Physician-Industry Relationship, of the National Academy of Medicine, analyzes this new circumstance and proposes some considerations to the medical community.Debido a las restricciones sanitarias secundarias a la pandemia de COVID-19, diversas interacciones entre la industria farmacéutica y los médicos cambiaron. Una de ellas ha sido el método promocional de medicamentos a través de reuniones académicas en torno a padecimientos de interés financiero. Una modalidad reciente ha sido la promoción unilateral de un fármaco determinado por parte de la industria farmacéutica por medio de eventos académicos con la invitación de aparentes “expertos”. Estas reuniones frecuentemente están sesgadas no hacia la atención óptima de un padecimiento, sino a la promoción comercial de un medicamento específico que pudiera o no ser la mejor opción o sin la consideración de alternativas terapéuticas asociadas. El Comité de Ética y Transparencia en la Relación Médico-Industria, de la Academia Nacional de Medicina de México, analiza esta nueva circunstancia y propone algunas consideraciones a la comunidad médica.

Higher Education Institutions implement study programs with the aim of training competitive professionals that adjust to the needs of the labor market, but seeking as far as possible to guarantee a successful graduation. It is necessary to identify the characteristics of graduation of a program education that allows institutional managers to propose strategies that improve graduation levels in them and thereby improve the quality conditions offered to students enrolled in these study programs. In order to carry out this process, the failure rate, the conditions of the school environment, the results of the bachelor's exit exams and the accreditations of the educational program are analyzed from the beginning. This is done in order to identify key factors in the dropout process and where to work for the improvement of the Electronic Engineering educational program of the Faculty of Chemical Sciences and Engineering of the Autonomous University of Baja California.

This paper contextualizes the economic environment of the productive sectors that depend on the intensive use of water resources in the Colombian Amazon basin (it is composed of the departments of Amazonas, Caquetá, Guainía, Guaviare, Putumayo, Vaupes, La Bota Caucana and southern Nariño) through the collection and organization of information from official entities and consultations in the region carried out by the Amazon Scientific Research Institute (ASRI). Macroeconomic indicators of the Amazonian departments in each of the different sectors were analyzed considering the added value exposed in the annual average of the Gross Domestic Product (2000–2012 in constant values) and contrasted with the sectoral demand for water and the growth projection, both of the human population and the growth trends of the economic activities. As a relevant result, it was found that the departments with a mining-energy tradition base their economic growth on the intensive use of water (greater pressure on the resource in m3/year). An average annual value of $374.42 million dollars is reported in water use (economic cost for the department of Putumayo alone) for oil extraction, which will increase in the future. This value has not been offset by the department, let alone taken into account in the economic growth indicators. It is concluded that the policy guidelines for water resource management in Colombia should be differentiated by sectors and by departments, considering the economic dynamics in the demand for water use and the heterogeneity of the populations.

Writing a prescription or indicating a treatment is usually the last part of medical consultation. This crucial process can be undermined by multiple factors such as limited prescriptive ability, overwork, and lack of reflection or time. Insufficient information about the patient or the treatment affects the prescriptive process and leads to errors that can be serious for patient health. The National Academy of Medicine, in line with the World Health Organization, emphasizes the relevance of making the prescriptive process a reflective exercise. Extender una receta o indicar un tratamiento suele ser la ultima parte de la consulta medica. Este proceso crucial puede desvirtuarse debido a multiples factores como capacidad prescriptiva limitada, exceso de trabajo y falta de reflexion o tiempo. La informacion insuficiente acerca del paciente o del tratamiento afecta el proceso prescriptivo y propicia errores que pueden ser graves para la salud del enfermo. La Academia Nacional de Medicina, en consonancia con la Organizacion Mundial de la Salud, hace enfasis en hacer del proceso prescriptivo un ejercicio de reflexion.

The implementation of an essential medicines list in health institutions allows acquiring and administering a long list of drugs that offers treatment alternatives to physicians, as well as a collegiate academic description of indications, doses, side effects, interactions and cost-benefit analyses, thus facilitating medical prescription and administration of health products. The Committee of Ethics and Transparency in the Physician-Industry Relationship issues several recommendations for optimizing the benefits generated by essential medicines lists. La implementacion en instituciones de salud de un cuadro basico permite adquirir y administrar una larga lista de medicamentos que presenta a los medicos las alternativas de tratamiento, asi como la descripcion academica colegiada de indicaciones, dosis, efectos secundarios, interacciones y analisis de costo-beneficio, con lo que se facilita la prescripcion medica y la administracion de insumos para la salud. El Comite de Etica y Transparencia en la Relacion Medico-Industria emite diversas recomendaciones para la optimizacion de los beneficios generados por los cuadros basico de medicamentos.

Self-medication and self-prescription are actions undertaken by patients; the former, as an element of self-care that involves over-the-counter drugs, and the latter, as a violation of the Statute of Health, since it includes drugs that can only be dispensed with a medical prescription. All the drawbacks that have been attributed to self-medication are actually associated with self-prescription. La automedicacion y la autoprescripcion son acciones de los pacientes; la primera como elemento del autocuidado que involucra medicamentos de venta libre y la segunda como una violacion a la ley de salud, pues comprende medicamentos que solo pueden expenderse con receta. Todos los inconvenientes que se han atribuido a la automedicacion en realidad lo son de la autoprescripcion.

Poultry production is an industry that generates 90,000 metric tons of chicken meat worldwide. Thus, optimizing chicken growth and sustainable production is of great importance. A central factor determining not only production parameters, but also stability of the immune system and chicken health, is the diversity and variability of the microbiota present throughout the gastrointestinal tract. To date, several studies have investigated the relationship between bacterial communities and the gut microbiome, with limited data to compare. This study aims to create a bacterial meta-analysis based on studies using amplicon sequencing with Illumina sequencing technologies in order to build a baseline for comparison in future analyses of the cecal bacterial composition in chicken. A systematic literature review was performed (SYRF ID: e84f0468-e418-4eec-9da4-b517f1b4809d. Full project URL: https://app.syrf.org.uk/projects/e84f0468-e418-4eec-9da4-b517f1b4809d/detail). From all the available and analyzed manuscripts only nine contained full raw-sequence data available and the corresponding metadata. A total of 324 samples, comprising three different regions within the 16S rRNA gene, were analyzed. Due to the heterogeneity of the data, each region was analyzed independently and an effort for a joint analysis was performed as well. Taxonomic profiling revealed 11 phyla, with Firmicutes as the most prevalent phylum, followed by Bacteroidetes and Proteobacteria. At genus level, 109 genera were found. Shannon metric for alpha diversity showed that factors like type of chickens (Commercial or experimental) and 16S rRNA gene subregion have negligible effect on diversity. Despite the large number of parameters that were taken into account, the identification of common bacteria showed five genera to be common for all sets in at least 50% of the samples. These genera are highly associated to cellulose degradation and short chain fatty acids synthesis. In general, it was possible to identify some commonalities in the bacterial cecal microbial community despite the extensive variability and factors differing from one study to another.

Mycosis fungoides (MF) is the most common primary skin T-cell lymphoma, which is characterized for a heterogeneous clinical expressivity.To report clinical variants and sociodemographic characteristics in patients with MF under the care of a dermatological hospital.290 patients with MF clinical and histopathological diagnosis attended to over the course of 11 years were included. Sociodemographic description of patients was made, who were classified according to clinical and histopathological variants.MF was recorded in 57.9 % of women and 42 % of men. The most common clinical variant was the classic type in 46.2 %; dyschromic variants accounted for 35.2 %, out of which hypopigmented MF was the most representative (17.6 %); poikilodermatous MF accounted for 4.1 %, and folliculotropic, for 3.1%. The papular variant occurred in six patients (2.1 %), the single-plaque variety in three (1%), and the ichthyosiform, syringotropic and granulomatous slack skin varieties occurred in one patient each. The granulomatous variant was found in 0.7 %, and 1.4 % had erythroderma.The most common MF clinical variant was classic plaque stage, followed by dyschromic variants. Other clinical variants accounted for 18.6 %.La micosis fungoide es el linfoma primario de células T en piel más frecuente, con expresividad clínica heterogénea.Reportar las variedades clínicas y las características sociodemográficas en pacientes con micosis fungoide tratados en un hospital dermatológico.Se incluyeron 290 pacientes con diagnóstico clínico e histopatológico de micosis fungoide atendidos en el transcurso de 11 años. Se realizó descripción sociodemográfica de los pacientes, quienes se clasificaron conforme las variantes clínicas e histopatológicas.La micosis fungoide se presentó en 57.9 % mujeres y 42 % hombres. La variedad clínica más común fue la clásica en 46.2 %; la discrómica representó 35.2 %, del cual la hipopigmentada fue la más representativa (7.6 %); la poiquilodérmica constituyó 4.1 % y la foliculotrópica, 3.1 %. La variedad papular se presentó en seis pacientes (2.1 %), la de placa única en tres (1 %) y la ictiosiforme, siringotrópica y la piel laxa granulomatosa, en un paciente cada una. La variedad granulomatosa se encontró en 0.7 % y 1.4 % presentó eritrodermia.La variedad clínica más frecuente de micosis fungoide fue la clásica en fase de placa, seguida de las variedades discrómicas. Otras variedades clínicas representaron 18.6 %.

A novel chapter in current medical settings is the promotion and attention of esthetic aspects rather than health issues by health professionals. The human aspiration related to the search for personal beauty has generated new scenarios in medical practice. The Committee on Ethics and Transparency in the Physician-Industry Relationship (CETREMI) of the National Academy of Medicine of Mexico has analyzed this phenomenon and has issued recommendations directed both to medical professionals and to producers and potential consumers of esthetic procedures.Un capítulo novedoso es la atención y promoción por parte de médicos especialistas de aspectos relacionados con procedimientos estéticos, más que con la salud. La aspiración humana de la búsqueda de la belleza personal ha generado nuevos escenarios en la labor médica. El Comité de Ética y Transparencia en la Relación Médico Industria (CETREMI) de la Academia Nacional de México ha revisado esta circunstancia y emite recomendaciones tanto a los médicos como a los productores y potenciales consumidores de procedimientos estéticos.

espanolUn capitulo novedoso es la atencion y promocion por parte de medicos especialistas de aspectos relacionados con procedimientos esteticos, mas que con la salud. La aspiracion humana de la busqueda de la belleza personal ha generado nuevos escenarios en la labor medica. El Comite de Etica y Transparencia en la Relacion Medico Industria (CETREMI) de la Academia Nacional de Mexico ha revisado esta circunstancia y emite recomendaciones tanto a los medicos como a los productores y potenciales consumidores de procedimientos esteticos. EnglishA novel chapter in current medical settings is the promotion and attention of esthetic aspects rather than health issues by health professionals. The human aspiration related to the search for personal beauty has generated new scenarios in medical practice. The Committee on Ethics and Transparency in the Physician-Industry Relationship (CETREMI) of the National Academy of Medicine of Mexico has analyzed this phenomenon and has issued recommendations directed both to medical professionals and to producers and potential consumers of esthetic procedures.

OBJECTIVE The objective of this study was to determine the psychometric properties of the 3-dimensional latent model of empathy on the Jefferson Scale of Physician Empathy instrument (version S), and to verify the existence of cutoff points capable of differentiating empathy measures classified as: "high," "medium," and "low" using data collected from observations of students from 11 dental faculties of 5 Central American and Caribbean countries (n = 3082) between 2015 and 2019. METHODS This is an exploratory, "a posteriori," and non-experimental study. Factor structure and factor invariance by country and gender were analyzed. Hierarchical cluster analysis and bifactorial analysis were applied, and the data were normalized by cluster and by percentiles within them. RESULTS Confirmatory factor analysis showed that the original model was replicable and fit the data, while multigroup analysis allowed assuming an invariant factor structure by country and by gender. There is reliability in the measurement made by the scale and its dimensions. CONCLUSIONS The instrument has adequate psychometric properties, and cutoff values obtained allow people with lower or higher levels of empathy and its components to be classified. Therefore, these results solve the problem of comparing the scores and observed levels of empathy between dental schools within and between countries and between genders. Such comparisons were only possible since the original data of each study were made available for traditional statistical methods.

Conflicts of interest are situations in which judgment and integrity of medical decisions or actions are influenced by a secondary interest, often of an economic nature. The Committee of Ethics and Transparency in the Physician-Industry Relationship of the National Academy of Medicine of Mexico recognizes that these conflicts occur in health professionals' daily life, but also in public and private institutions that provide health services, as well as in the academy and in research activities. Therefore, it is necessary to identify conflicting situations and always act in accordance with the patient's interest.

La calidad de la imagen en cine y televisión se acerca cada vez más a la realidad que percibe el ojo humano. El gerente de producto de Sony Latinoamérica, Alejandro Reyes, explica los alcances de la tecnología 4k, su aplicación en el Mundial Rusia 2018 y las proyecciones futuras con la experimentación de 8k para las Olimpiadas 2020. 4k cuadriplica la resolución (de HD) para ofrecer encuadres más nítidos, con más contrastes, resolución y espacio de color más amplio. Ahora los procesos de transmisión son más sencillos para las empresas por los diferentes medios usados como internet, etc.

We evaluated and characterized the biodegradation of the herbicide diuron in its commercial form above its saturation concentration by Lysinibacillus fusiformis acclimatized by sequential batch culturing. Acclimatization was carried out in eight cycles in liquid culture, improving the capacity of L. fusiformis to remove diuron from 55.13 ± 1.3% in the first batch to 87.2 ± 0.11% in the eighth batch. Diuron biosorption was characterized with Langmuir and Freundlich isotherms, obtaining a maximum biosorption (qmax) of 0.00885 mg mg−1. In diuron biodegradation assays, a consumption substrate biomass yield (YSD/X) of 6.266 mg mg−1 was obtained, showing that biodegradation was the main mechanism in diuron removal. Diuron biodegradation by L. fusiformis was characterized by the Monod model, with a maximum specific growth rate (μmax) of 0.0245 h−1 and an affinity constant (KSD) of 344.09 mg L−1. A low accumulation of 3,4-dichloroaniline with the production of chloride ions indicated dechlorination when diuron was present at high concentrations. A phytotoxic assay conducted with Lactuca sativa showed that the toxicity of an effluent with diuron at 250 mg L−1 decreased when it was pretreated with acclimatized L. fusiformis. Acclimatization by sequential batch culturing improved the ability of L. fusiformis to biodegrade diuron at high concentrations, showing potential in the bioremediation of diuron-contaminated sites.

Cyclin-Dependent Kinase 2 (CDK2) and Vascular Endothelial Growth Factor Receptor (VEGFR2) have largely been considered as attractive targets for developing anticancer agents. However, there is no dual inhibitor commercially available in the market that interacts simultaneously with the allosteric back pocket of these enzymes. We applied a combined computational strategy that started with the generation of two overlapping pharmacophore models of both kinases at 'inactive' conformation. Next, several virtual libraries of natural products, including the databases TCM (Traditional Chinese Medicine), UEFS (Universidade Estadual de Feira de Santana), NuBBE (Nuclei of Bioassays, Biosynthesis, and Ecophysiology of Natural Products) and AfroDb (African Medicinal Plants Database) were deconstructed using a non-extensive version of the approach RECAP (retrosynthetic combinatorial analysis procedure). These natural-product-derived fragments (NPDFs) were screened and merged into drug-sized compounds, which were filtered by Lipinski's Rule-of-five (Ro5) and docking. As a result, two pharmacophore models, namely Hypo1 and Hypo2, were developed with an accuracy of 0.94 and 0.84, respectively. Deconstruction of natural products produced a set of 16655 unique non-extensive NPDFs that were screened against both pharmacophore models. Finally, after merging, Ro5-filtering and docking, we obtained a set of 20 hit compounds predicted to be diverse, developable, synthesizable and potent. The computational strategy proved successful to find virtual candidates of kinase inhibitors and therefore contributes to the identification of innovative multi-target compounds with potential anticancer activity. Communicated by Ramaswamy H. Sarma.

Conflicts of interest are situations in which judgment and integrity of medical decisions or actions are influenced by a secondary interest, often of an economic nature. The Committee of Ethics and Transparency in the Physician-Industry Relationship of the National Academy of Medicine of Mexico recognizes that these conflicts occur in health professionals' daily life, but also in public and private institutions that provide health services, as well as in the academy and in research activities. Therefore, it is necessary to identify conflicting situations and always act in accordance with the patient's interest.Los conflictos de interés son situaciones en las que el juicio y la integridad de las decisiones o acciones médicas son influidas por un interés secundario, frecuentemente de tipo económico. El Comité de Ética y Transparencia en la Relación Médico-­Industria de la Academia Nacional de Medicina de México reconoce que estos conflictos ocurren en la vida diaria de los profesionales de la salud, pero también en las instituciones de servicios de salud públicas y privadas, así como en la academia y en la investigación. Por ello, es necesario identificar situaciones de conflicto y actuar siempre de acuerdo con el interés del paciente.

Clinical research is the most important tool for the identification of diagnostic and therapeutic strategies that derive in higher efficacy and safety. Despite its significance, successful implementation of clinical research faces numerous difficulties, with one the most relevant being limited availability of resources for the performance of independent clinical trials. Generally, the pharmaceutical industry absorbs the costs associated with most clinical trials; however, this can generate dissociation between subjects of interest and health priorities when economic interest is the main driver of these protocols. In addition to the relevant role played by the pharmaceutical industry, it is important that government agencies favor adequate conditions, both in economic and regulatory aspects, for the implementation of independent clinical research that addresses subjects of medical and therapeutic interest, even if it does not generate corporate economic benefits.La investigación clínica es la herramienta de mayor importancia para la identificación de estrategias diagnósticas y terapéuticas que deriven en mayor eficacia y seguridad. A pesar de su trascendencia, la implementación exitosa de la investigación clínica presenta numerosas dificultades; entre las más relevantes se encuentra la poca disponibilidad de recursos para realizar ensayos clínicos independientes. Por lo general, la industria farmacéutica absorbe los costos asociados con la mayoría de los ensayos clínicos, sin embargo, esto puede generar una disociación entre los temas de interés y las prioridades en salud, al existir interés económico como principal motivación de estos protocolos. Además del papel relevante de la industria farmacéutica, es importante que las instancias gubernamentales favorezcan las condiciones, tanto económicas como regulatorias, para la implementación de investigación clínica independiente, que aborde temas de interés médico y terapéutico, aunque no genere beneficios económicos empresariales.

Chronic obstructive pulmonary disease (COPD) is a major cause of chronic morbidity and mortality worldwide. While the cut-off point to define airflow obstruction has been controversial, it is widely accepted that the spirometry test is vital, as well as performing it after using a bronchodilator. The 6-second spirometry and the forced expiratory volume in 1 second/forced expiratory volume in 6 seconds (FEV1/FEV6) have demonstrated validity for defining obstruction, and it would be advisable to incorporate them in the definitions of obstruction. Another relevant issue is that spirometry with borderline obstruction can vary over time, changing to above or below the cut-off point. Thus, surveillance should be considered over time, repeating the spirometry to have a greater certainty in the diagnosis. The objective of this article was to conduct an in-depth review of the controversies in the diagnosis of COPD. During the past years, COPD definition has been updated in different times; however, it is now considered more as a complex syndrome with systemic participation, requiring a multidimensional assessment, and not only a spirometry.

Introducción. El concepto de empatía se ha integrado como uno de los elementos centrales para el logro final del proceso de enseñanza-aprendizaje en estudiantes de ciencias de la salud. Objetivo. Estimar y comparar los niveles de empatía entre estudiantes y profesores de pregrado de odontología de la Universidad Central del Este (República Dominicana). Materiales y métodos. Estudio transversal. La población de estudio (n=264) se dividió en dos grupos: el primero, compuesto por estudiantes de primero a quinto año de la carrera de odontología (N=223; n=215) distribuidos en dos áreas (básica-preclínica y clínica), y el segundo, por los docentes de ambas áreas en la Escuela de Odontología de la universidad (N=53; n=49). Se utilizó la Escala de Empatía Médica de Jefferson (Version-S). El análisis descriptivo de los datos incluyó la estimación de medias, desviaciones estándar y porcentajes, y la confiabilidad de los datos se estimó mediante α de Cronbach; además se realizó un ANOVA bifactorial, calculándose el tamaño del efecto y la potencia de la prueba, y en los casos en que la prueba de Fisher fue significativa para algún factor, se utilizó la prueba de Tukey para estimar las diferencias entre las medias. Se estableció un nivel de significancia: α≤0.05 y β≤0.20 Resultados. Los valores globales de empatía y en la dimensión cuidado con compasión en los profesores no difirieron significativamente con los obtenidos por los estudiantes (área básica -preclínica y clínica), pero sí hubo diferencias entre los estudiantes de ambas áreas (p < 0.05). En las dimensiones Adopción de perspectiva y Ponerse en los zapatos del otro no existieron diferencias entre los tres subgrupos (p=0.428 y p=0.866). Conclusión. Los niveles de empatía y de la dimensión cuidado compasivo de los profesores no difieren de los de los estudiantes en general (ambas áreas).

Introduction: Empathy is an important trait in the training of medical students, as it has been shown that it improves the doctor-patient relationship. Objective: To evaluate the decline of empathy levels and possible sex differences in undergraduate medical students from the Universidad Central del Este, Dominican Republic. Materials and methods: Exploratory cross-sectional study. A Spanish version of the Jefferson Scale of Empathy for Medical Students (S-version) Scale was administered in September 2018 to 1 144 1st-year to 5th-year medical students (887 women and 257 men). Data reliability was verified using the Cronbach's alpha and the intraclass correlation coefficient (ICC). A generalized linear equation model (Type III) was applied to analyze data and the Wald chi-squared test was used to determine differences in overall empathy levels and the mean scores obtained in each of its three components based on the year of medical training and sex. Results: Cronbach's alpha was satisfactory (0.839), and the ICC was 0.834 (F=5.68; p=0.005). The variability of the estimated curves in relation to empathic behavior by course (year of medical training) and sex was observed using linear and non-linear regression equations: Wald x2=115.6, p=0.0001 between courses; and Wald x2 =12.85, p=0.001 between men and women. Conclusions: Sex differences were observed regarding empathy levels in the study population. Moreover, a decline in empathy levels (overall empathy and Compassionate Care component in men and Walking in the Patient's Shoes component in men and women) was also observed as students progressed in their medical training. The behavior of these data raises questions regarding the need to determine the factors causing these differences and the decline in empathy levels. Resumen Introducción. La empatia es un rasgo importante en los estudiantes de medicina, ya que se ha demostrado que mejora la relación médico-paciente. Objetivo. Evaluar la declinación empática y las posibles diferencias según el sexo en los niveles de empatia en estudiantes de pregrado de Medicina en la Universidad Central del Este, República Dominicana. Materiales y métodos. Estudio exploratorio transversal. La versión en español de la Escala de Empatia de Jefferson adaptada para estudiantes de medicina (versión S) fue aplicada a 1 144 estudiantes de medicina de 1° a 5° año (887 mujeres y 257 hombres). La confiabilidad de los datos se verificó mediante el alfa de Cronbach y el coeficiente de correlación intraclase (CCI). Los datos se analizaron utilizando un modelo de ecuación lineal generalizada (Tipo III) y se utilizó la prueba x2 de Wald para determinar las diferencias en los niveles globales de empatia y los puntajes promedio de sus tres componentes según el año de formación y el sexo. Resultados. El alfa de Cronbach fue satisfactorio (0.839) y el CCI fue de 0.834 (F=5.68; p=0.005). Mediante ecuaciones de regresión lineal y no lineal se observó variabilidad de las curvas estimadas en relación con el comportamiento empático según el curso (año de formación médica) y el sexo: entre cursos: x2 de Wald= 115.6; p=0.000i, y entre hombres y mujeres: x2 de Wald= 12.85; p=0.001). Conclusiones. Se observaron diferencias en los niveles de empatia según el sexo; también se evidenció una declinación en los niveles de empatia (empatia global y componente Cuidado con compasión en los hombres, y en el componente Ponerse en los zapatos del otro en hombres y mujeres) a medida que los estudiantes avanzaban en su formación. El comportamiento de estos datos genera interrogantes relacionados con la necesidad de determinar los factores que causan estas diferencias y dicha declinación empática.