Resumen: Esta investigación analiza un modelo de ecuaciones estructurales que relaciona las herramientas de manufactura esbelta asociadas a la gestión de Recursos Humanos con los beneficios obtenidos en la industria maquiladora de Ciudad Juárez (México). Se diseña y aplica un cuestionario a la industria regional para obtener información acerca de los niveles de implementación respecto de la solución de problemas A3: descentralización y grupos de trabajo multifuncionales y su relación con la sustentabilidad social. Las variables se relacionan a través de seis hipótesis validadas con información empírica de 411 respuestas al cuestionario, otorgando validación estadística. Tras cuantificar las relaciones, los resultados indican que la relación entre los grupos de trabajo multifuncionales y la resolución de problemas A3 es la más fuerte del modelo. Se concluye que existe suficiente evidencia estadística para afirmar que estas herramientas influyen en la sustentabilidad social en las industrias maquiladoras mexicanas, por lo que se recomienda a la dirección enfocar sus esfuerzos en la gestión de Recursos Humanos para garantizar la sustentabilidad social, facilitando la toma de decisiones en lo productivo, reduciendo los riesgos laborales e incrementando el bienestar.

Abstract: This research reports a structural equation model relating Lean Manufacturing Tools associated with Human Resource Management to the benefits obtained in the maquiladora industry of Ciudad Juarez (México). A questionnaire is designed and applied to the regional industry to obtain information about the implementation levels regarding the A3 problem-solving: Decentralization and Multifunctional Working Groups and their relationship with Social Sustainability. The variables are related through six hypotheses validated with empirical information from 411 responses to the questionnaire, giving statistical validation. After quantifying the relationships, findings indicate that the relationship between Multifunctional Working Groups and A3 problem-solving is the strongest of the model. It is concluded that there is enough statistical evidence to state that these tools influence the Social Sustainability in Mexican maquiladora industries, so it is recommended that the Top Management focus its efforts on Human Resource Management to guarantee it, facilitating decision-making in the productive, reducing labor risks and increasing well-being.

Biodiversity conservation is a complex and transdisciplinary problem that requires engagement and cooperation among scientific, societal, economic, and political institutions. However, historical approaches have often failed to bring together and address the needs of all relevant stakeholders in decision‐making processes. The Tropical Andes, a biodiversity hotspot where conservation efforts often conflict with socioeconomic issues and policies that prioritize economic development, provides an ideal model to develop and implement more effective approaches. In this study, we present a co‐design approach that mainstreams and improves the flow of biodiversity information in the Tropical Andes, while creating tailored outputs that meet the needs of economic and societal stakeholders. We employed a consultative process that brought together biodiversity information users and producers at the local, national, and regional levels through a combination of surveys and workshops. This approach identified priority needs and limitations of the flow of biodiversity information in the region, which led to the co‐design of user‐relevant biodiversity indicators. By leveraging the existing capacities of biodiversity information users and producers, we were able to co‐design multiple biodiversity indicators and prioritize two for full implementation ensuring that the data was findable, accessible, interoperable, and reusable based on the FAIR principles. This approach helped address limitations that were identified in the stakeholder engagement process, including gaps in data availability and the need for more accessible biodiversity information. Additionally, capacity‐building workshops were incorporated for all producers of biodiversity information involved, which aimed to not only improve the current flow of biodiversity information in the region but also facilitate its future sustainability. Our approach can serve as a valuable blueprint for mainstreaming biodiversity information and making it more inclusive in the future, especially considering the diverse worldviews, values, and knowledge systems between science, policy, and practice.

La conservación de la biodiversidad es un problema complejo y transdisciplinario que requiere el compromiso y la cooperación entre instituciones científicas, sociales, económicas y políticas. Sin embargo, los enfoques tradicionales/convencionales  a menudo no logran  reunir y abordar las necesidades de todos los actores relevantes en los procesos de toma de decisiones. Los Andes tropicales, un área clave  de biodiversidad donde los esfuerzos de conservación a menudo entran en conflicto con cuestiones socioeconómicas y políticas que priorizan el desarrollo económico, proporcionan un modelo ideal para desarrollar e implementar enfoques más efectivos. En este estudio, presentamos un enfoque co-diseño que integra y mejora el flujo de información sobre biodiversidad en los Andes tropicales, creando resultados personalizados que satisfacen las necesidades, tanto económicas como sociales, de las partes interesadas. Empleamos un proceso de consulta que reunió a usuarios y productores de información sobre biodiversidad a nivel local, nacional y regional, a través de encuestas y talleres. Este enfoque ha permitido identificar necesidades prioritarias y limitaciones del flujo de información sobre biodiversidad en la región; lo cual llevó al codiseño de indicadores de biodiversidad relevantes para los usuarios. Aprovechando las capacidades existentes de los usuarios y productores de información sobre biodiversidad, pudimos co-diseñar múltiples indicadores de biodiversidad y priorizar dos de estos para su implementación completa, asegurando que los datos sean localizables, accesibles, interoperables y reutilizables, según los principios FAIR. Este enfoque ayudó a abordar las limitaciones que se identificaron en el proceso de participación de las partes interesadas; incluidas las brechas en la disponibilidad de datos y la necesidad de información sobre biodiversidad más accesible. Además, se incorporaron talleres de desarrollo de capacidades para todos los productores de información sobre biodiversidad involucrados, los cuales apuntaron no sólo a mejorar el flujo actual de información sobre biodiversidad en la región, sino también facilitar su sostenibilidad futura. Nuestro enfoque puede servir como un modelo valioso para incorporar la información sobre biodiversidad y hacerla más inclusiva en el futuro; especialmente si consideramos las diversas perspectivas globales, valores y sistemas de conocimiento implicados en las interacciones entre  la ciencia, la política y su aplicación práctica.

A conservação da biodiversidade é um problema complexo e transdisciplinar que requer compromisso e cooperação entre instituições científicas, sociais, económicas e políticas. No entanto, as abordagens tradicionais/convencionais muitas vezes não conseguem reunir e responder às necessidades de todos os intervenientes relevantes nos processos de tomada de decisão. Os Andes tropicais, uma área chave para a biodiversidade onde os esforços de conservação entram frequentemente em conflito com questões socioeconómicas e políticas que dão prioridade ao desenvolvimento económico, fornecem um modelo ideal para desenvolver e implementar abordagens mais eficazes. Neste estudo, apresentamos uma abordagem de co-design que integra e melhora o fluxo de informações sobre biodiversidade nos Andes tropicais, criando resultados personalizados que atendem às necessidades, tanto econômicas quanto sociais, das partes interessadas. Empregamos um processo de consulta que reuniu usuários e produtores de informações sobre biodiversidade nos níveis local, nacional e regional, por meio de pesquisas e workshops. Esta abordagem permitiu identificar necessidades prioritárias e limitações do fluxo de informação sobre a biodiversidade na região; o que levou à concepção conjunta de indicadores de biodiversidade relevantes para os utilizadores. Aproveitando as capacidades existentes dos utilizadores e produtores de informação sobre biodiversidade, fomos capazes de conceber em conjunto vários indicadores de biodiversidade e priorizar dois deles para implementação total, garantindo que os dados sejam localizáveis, acessíveis, interoperáveis ​​e reutilizáveis, de acordo com os princípios FAIR. Esta abordagem ajudou a resolver as limitações identificadas no processo de envolvimento das partes interessadas; incluindo lacunas na disponibilidade de dados e a necessidade de informações mais acessíveis sobre biodiversidade. Além disso, foram incorporados workshops de capacitação para todos os produtores de informação sobre biodiversidade envolvidos, que visaram não só melhorar o fluxo actual de informação sobre biodiversidade na região, mas também facilitar a sua sustentabilidade futura. A nossa abordagem pode servir como um modelo valioso para incorporar informações sobre biodiversidade e torná-las mais inclusivas no futuro; especialmente se considerarmos as diversas perspectivas globais, valores e sistemas de conhecimento envolvidos nas interações entre ciência, política e sua aplicação prática.

ABSTRACT Introduction: There is a lack of information about cardiac surgery training and professional practice in Latin American (LATAM) countries. This study is the first comparative analysis of cardiac surgical training and professional practice across LATAM and provides the fundamentals for future academic projects of the Latin American Association of Cardiac and Endovascular Surgery (LACES). Methods: International survey-based comparative analysis of the training and professional practice of cardiac surgeons across LATAM. Trainees (residents/fellows) and staf (graduated) surgeons from LATAM countries were included. Results: A total of 289 respondents (staf surgeons N=221 [76.5%]; residents/fellows N=68 [23.5%]) from 18 different countries participated in the survey. Most surgeons (N=92 [45.3%]) reported being unsatisfied with their salaries. Most respondents (N=181 [62.6%]) stated that it was difficult to obtain a leadership position, and 149 (73.8%) stated that it was difficult to find a job after completing training. Only half of the trainee respondents (N=32 [47.1%]) reported that their program had all resident spots occupied. Only 22.1% (N=15) of residents/fellows were satisfied with their training programs. The majority (N=205 [70.9%]) of respondents would choose cardiac surgery as their specialty again. Most surgeons (N=129 [63.9%]) and residents/fellows (N=52 [76.5%]) indicated that the establishment of a LATAM cardiac surgery board examination would be beneficial. Conclusion: Modernization and standardization of training, as well as greater access to opportunities, may be required in LATAM to increase professional satisfaction of cardiac surgeons and to reduce disparities in the specialty. Such changes may enhance the regional response to the dynamic challenges in the feld.

ABSTRACT Introduction: The interest in spinal endoscopy is rising, particularly among younger spine surgeons. Formalized postgraduate training programs for endoscopic spinal surgery techniques are lacking behind. Methods: The authors performed a retrospective survey study amongst participants of the 2022 AMCICO endoscopic surgery symposium. Descriptive and correlative statistics were done on the surgeon’s responses recorded in multiple-choice questions. In addition, surgeons were asked about their clinical experience and preferences with spinal endoscopy, training background, the types of lumbar endoscopic decompression they perform by approach, and future training requirements. SPSS (version 27) statistical software package was used for data analysis. Descriptive statistic measures were used to count responses and calculate the mean, range, standard deviation, and percentages. In addition, chi-square statistics were used to determine the strength of the association between factors. Results: The online survey was accessed by 321 surgeons, of which 92 completed it (53.4%). Demographic data showed the majority of responding surgeons being orthopedic surgeons (73.6%) and under the age of 50 (69.2%), with over half (51.1%) having less than three months of formalized training in endoscopic spinal surgery techniques. Most surgeons practiced uni-portal (58.9%) versus bi-portal (3.4%) spinal endoscopy. The transforaminal approach (65.5%) was preferred over the interlaminar method (34.4%). The bi-portal technique was indicated almost exclusively for the lumbar spine (94.8%). For endoscopically assisted spinal fusions, a uni-portal approach was preferred by 72% of surgeons over a bi-portal procedure (24.5%). 84.1% of respondents were interested in navigation, of which 30.7% preferred optical over electromagnetic technology (18.2%). Robotics was of interest to 51.1% of survey participants. Respondents’ bias was estimated with course attendance assessments, with 37% of surgeons having attended all three days, 27.2% two days, and 16.3% one day. One-fifth of responding spine surgeons did not participate in any curriculum activities but completed the survey. The academic impact of the AMCICO endoscopy symposium was high, with 68.1% of respondents indicating interest in continued training and 61.1% of trainees ready to apply their newly acquired knowledge base to clinical practice. Conclusion: The interest in spinal endoscopy surgery techniques and protocols is high among AMCICO members. Many surgeons are interested in learning advanced endoscopic surgical techniques to integrate the technology into their surgical procedure portfolio to address common painful conditions of the degenerative spine beyond herniated discs and foraminal stenosis. The authors concluded that its academic impact was high based on the responses given by the participating surgeons. Level of evidence III; Retrospective study.

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Resumo: Introdução: O interesse em cirurgia endoscópica da coluna tem aumentado especialmente entre os jovens cirurgiões, contudo, são poucos os centros que atualmente oferecem programas de treinamento nesta disciplina. Métodos: Foi realizada uma pesquisa retrospectiva entre os participantes do simpósio de “Cirurgia Minimamente Invasiva e Endoscópica da Coluna Vertebral” realizado durante o Congresso AMCICO 2022. Estatísticas descritivas e testes de correlação foram aplicados às respostas das perguntas de múltipla escolha. Os cirurgiões foram questionados sobre experiência clínica e preferências pela endoscopia espinhal, histórico de treinamento, tipos de descompressão lombar endoscópica que realizaram e requisitos futuros para um treinamento adicional. O software estatístico SPSS (versão 27) foi utilizado para a análise de dados. As medidas estatísticas descritivas foram utilizadas para quantificar as respostas e calcular a mediana, a média, o desvio padrão e as porcentagens. O qui-quadrado foi empregado para determinar a associação entre os fatores estudados. Resultados: A pesquisa on-line foi visualizada por 321 cirurgiões, dos quais 92 a completaram (53,4%). As informações demográficas mostraram que a maioria dos participantes são cirurgiões ortopédicos (73,6%) e menores de 50 anos (69,2%), com mais da metade deles (51,1%) possuindo menos de 3 meses de treinamento formal em técnicas endoscópicas. A maioria dos cirurgiões pratica abordagens uniportais (58,9%, contra 3,4% bi-portais). A abordagem transforaminal (65,5%) foi preferida em relação à abordagem interlaminar (34,4%). A abordagem biportal foi selecionada como a abordagem indicada para a região lombar (94,8%). Para a fusão endoscopia-assistida, a abordagem unilateral foi preferida por 72% dos participantes contra a abordagem biportal (24,5%). Os sistemas de navegação foram de interesse para 84,1% dos participantes, dos quais 30,7% responderam que preferiam a óptica em vez da eletromagnética (18,2%). O uso da robótica foi de interesse para 51,1% dos participantes. O viés dos participantes foi calculado com base no percentual de participação, onde 37% participaram de todos os 3 dias de conferências, 27,2% participaram de 2 dias e 16,3% participaram de apenas um dia. Um quinto dos cirurgiões não participaram das atividades do simpósio e ainda assim responderam à pesquisa. O impacto acadêmico do simpósio de “Cirurgia Minimamente Invasiva e Endoscópica da Coluna Vertebral” foi alto, com 68,1% dos participantes respondendo que têm interesse em treinamento adicional nestas técnicas e 61,1% respondendo que estão prontos para aplicar novos conhecimentos em sua prática médica. Conclusão: O interesse em técnicas cirúrgicas endoscópicas da coluna vertebral é alto entre os membros da AMCICO. Um grande número de cirurgiões está interessado em aprender técnicas cirúrgicas endoscópicas avançadas da coluna vertebral e integrar esta tecnologia como parte de suas ferramentas cirúrgicas para resolver problemas comuns que afetam a coluna com doença degenerativa, além de hérnias de disco e estenoses foraminais. Baseados nas respostas fornecidas pelos cirurgiões participantes, os autores concluem que o impacto acadêmico foi elevado. Nível de evidência III; Estudo retrospectivo.

Abstract The aim of the present study was to investigate validity evidence based on internal structure and the relationship with other variables of the Brazilian version of the Hewitt and Flett Multidimensional Perfectionism Scale (H&F-MPS). To this end, a sample comprising 368 participants with a mean age of 31.17 years (SD=11,34), 74% female, answered the H&F-MPS perfectionism scale and instruments that measure personality and psychological inflexibility. Findings indicated a factor structure of three dimensions, like the original scale, good discriminative item parameters, highly satisfactory reliability indexes, and significant correlations of the hypothesized directions with Openness to Experiences, Neuroticism, and Conscientiousness factors from the personality measure, as well as with the psychological flexibility measure.

Resumo O objetivo do presente estudo foi levantar evidências de validade da estrutura interna e da relação com outras variáveis para a versão brasileira da Escala Multidimensional de Perfeccionismo de Hewitt e Flett (H&F-MPS). Para isso, uma amostra composta por 368 participantes com média de idade de 31,17 anos (DP = 11,34), sendo 74% do sexo feminino, respondeu à escala de perfeccionismo H&F-MPS e a instrumentos que mensuram a personalidade e a inflexibilidade psicológica. Os resultados apontaram uma estrutura fatorial com três dimensões semelhante à escala original, bons parâmetros de discriminação dos itens, índices muito satisfatórios de confiabilidade e correlações significativas na direção esperada com os fatores abertura à experiência, neuroticismo e conscienciosidade da medida de personalidade e com o instrumento de inflexibilidade psicológica.

Abstract Potential variables for the reproductive success of beef cows were evaluated. Included in the model were the age of the cow at calving; the interval between the Julian calving date and the end of the breeding season; the body weight and conditions at calving, at 75 days post-partum and at the end of the breeding season; and the mean daily variation in weight between these dates. Logistic regression was used in the analysis, with the parameters evaluated using the odds ratio statistic, estimating the chance of pregnancy. The mean rate of pregnancy was 84% and 55% for early and late-weaned cows, respectively. For early weaned cows, the regression variables were the Julian calving date, age of the cow, weight gain from calving to 75 days post-partum, and from 75 days post-partum to the end of the reproductive period. For late-weaned cows, there were only two regression variables, weight at calving and weight gain from calving to the end of the reproductive period. For every year above the average age of the herd, early weaned cows have an 80.9% greater chance of pregnancy, while a reduction of one year reduces the chance of pregnancy by 44.7%. In early weaned cows, every seven days after the mean Julian calving date reduces the chances of pregnancy by 22.6%, whereas every seven days before the mean calving date increases pregnancy by 29.2%. Greater gains in cow body weight, from calving to the end of the reproductive period, determine a greater probability of pregnancy.

Abstract Coronary artery disease (CAD) and ischemic heart disease (IHD) are often indistinctly used terms. Both combined have generated, over the past years, concerns about sex disparities in their presentation. From an epidemiological perspective, females have several disadvantages regarding the prevention, diagnosis, and treatment of CAD. Most of the general cardiovascular risk factors affect women more frequently, or with a higher morbidity and mortality association. Besides, atypical manifestations of the disease and uncommon forms of CAD represent a diagnostic challenge for clinicians. Even if current treatments for CAD have no apparent sex bias, women representation in clinical trials and treatment patterns analyzed in clinical practice refuse this statement. Several disparities are caused by inevitable sex-particularities, but many of them are more social, cultural, and dogmatic beliefs that have to be addressed and overhaul. (CAD IHD (IHD terms generated years presentation perspective prevention diagnosis frequently association Besides clinicians bias statement sexparticularities, sexparticularities particularities, particularities sex-particularities social cultural overhaul

Resumen La Ciudad de México (CDMX) enfrenta vulnerabilidad sociohidrológica (VSH) por su creciente escasez de agua. Este estudio evalúa la VSH de la Alcaldía Cuajimalpa de la CDMX. Se consideran condiciones materiales, ambientales y sociales para determinar la VSH a través de dos parámetros: estrés hídrico y capacidad adaptativa. Estos se determinaron mediante una metodología interdisciplinaria mixta, que incluye: el Método del Proceso de Jerarquía Analítica, la aplicación de una encuesta de opción múltiple y la georreferenciación de los resultados. Se identifica una VSH moderada en la Alcaldía, junto con condiciones adversas que pueden producir mayor vulnerabilidad en los próximos años.

Abstract Mexico City (CDMX) is facing socio-hydrological vulnerability (SHV) due to its increasing water scarcity. This study assesses the SHV of CDMX’s Cuajimalpa municipality, through space dynamics and territorial particularities. Material, environmental and social conditions are included in the evaluation of SHV through two parameters:, water stress and adaptive capacity. These parameters were determined through a mixed interdisciplinary methodology, which included: the Analytic Hierarchy Process Method, application of a multiple-choice survey, and georeferencing the results. In this work, we identify a moderate SHV in the municipality, along with adverse conditions that may produce greater vulnerability in coming years.

ABSTRACT Introduction. SARS-CoV-2, is causal agent of COVID-19. This virus causes infections that range from asymptomatic to symptomatic infection, with variable grade of severity. Cytokine storm, characterized for uncontrolled releasing of inflammatory mediators, has effect in the immunopathology of COVID-19. The aim was to evaluate if viral titers and unbalance of early immune response determined the clinical presentation of SARS-CoV-2 infection. Methods. Real time PCR was used to identify the level of SARS-CoV-2 replication in nasopharyngeal swabs (NPS). Expression of pro- inflammatory mediators with antiviral (IFN-γ) and chemokine (RANTES) functions were evaluated. TGFβ-1 anti-inflammatory cytokine was also determined. In cells collected from NPS. It was studied SARS-CoV-2 asymptomatic and symptomatic individuals; with 10 days or less of onset symptoms or contact with source of infection. A control group negative to virus was used to compare the results. Results. Level of viral replication was similar in individuals independently of their symptoms. It was identified a high expression of IFN-γ in SARS-CoV-2 infected subjects, which was significantly increased in symptomatic patients in comparison to controls (p = 0,0393). TGF-β1 and RANTES expression were lower in SARS-CoV-2 positive cases. It was observed a positive and significant correlation between IFN-γ and TGF-β1 in asymptomatic cases (r = +0,61, p = 0,0014). As a conclusion, the findings suggest an unbalance between pro-and anti-inflammatory mediators determinates the clinical presentation of SARS-CoV-2 infection.

RESUMEN Introducción. El SARS-CoV-2, es el agente causal de la COVID-19. Este virus produce infecciones que oscilan desde formas asintomáticas a sintomáticas, con grados de severidad variable. La tormenta de citoquinas, caracterizada por la liberación descontrolada de mediadores inflamatorios influye en la inmunopatología de la COVID-19. El objetivo fue evaluar si el título viral y el desbalance de la respuesta inmune temprana influían en la presentación clínica de la infección por SARS-CoV-2. Métodos. Se empleó el PCR en tiempo real, para determinar el nivel de replicación del SARS-CoV-2 en muestras de exudados nasofaríngeos (ENF). La expresión de mediadores pro-inflamatorios con función antiviral (IFN-γ), quimioquina (RANTES) y antiinflamatorio (TGFβ-1) fueron evaluados en células colectadas de los ENF. Se estudiaron individuos sintomáticos y sintomáticos infectados por SARS-CoV-2, en los primeros 10 días de diagnóstico o contacto con la fuente de contagio. Estos se compararon con un grupo control individuos negativos al virus. Resultados. El nivel de replicación viral fue similar en los individuos infectados por SARS-CoV-2, independientemente de la presencia de síntomas. Se identificó una expresión elevada de IFN-γ en los casos positivos al SARS-CoV-2, que fue significativamente mayor en los pacientes sintomáticos al compararla con los controles (p = 0,0393). La expresión de TGF-β1 y RANTES fue baja en los individuos infectados por SARS-CoV-2. Se observó una correlación positiva y significativa entre el IFN-γ y TGF-β1 en los individuos asintomáticos (r = + 0,61; p = 0,0014). Como conclusiones, los hallazgos sugieren que el desbalance entre los mediadores pro- y antiinflamatorios influyen en la presentación clínica de la infección por SARS-CoV-2.

RESUMEN La materia prima del fitomejoramiento es la variabilidad genética, que se presenta baja, en especies en proceso de domesticación, que no han sido sometidas a selección, como en Solanum betaceum. Una de las tecnologías para incrementar la variabilidad genética es la inducción de mutagénesis. El objetivo del estudio fue evaluar, a través de marcadores RAMs, las variaciones moleculares presentes en plántulas de S. betaceum, provenientes de semillas sometidas a diferentes concentraciones del agente mutante dietil sulfato (DES). Los loci polimórficos oscilaron entre 87,5 y 100 % y el número de alelos efectivos (Ne), entre 1,0 y 1,99. Los loci más polimórficos se observaron en TG, AG, ACA y CGA, que mostraron una heterosis media insesgada entre 0,34 y 0,51, que permite establecer que estos marcadores sean útiles para obtener mayor discriminación entre mutantes en S. betaceum. Las distancias genéticas oscilaron entre 0,30 y 1,0. El 81,28 % de estos registros se dieron entre 0,60 y 0,90; esto revela bajo nivel de cambios, debido al DES. Estos pequeños cambios contribuyeron a enriquecer la variabilidad genética de la muestra tratada con DES. Los marcadores RAMs fueron útiles para detectar cambios entre plantas provenientes de semillas tratadas con DES y plantas normales. La variabilidad genética entre tratamientos con DES fueron más altos que tratamientos sin DES. Las similitudes genéticas fueron bajas entre plantas tratadas y no tratadas y fueron altas, entre no tratadas. Los cambios producidos por DES fueron de baja magnitud; sin embargo, produjeron cambios en los niveles de variabilidad genética.

ABSTRACT The raw material for plant breeding is genetic variability, which is low in species in the process of domestication that have not been subjected to selection, as is the case with Solanum betaceum. One of the technologies to increase genetic variability is mutagenesis induction. The objective was to evaluate, through RAMs markers, the molecular variations present in S. betaceum seedlings from seeds previously subjected to different concentrations of the mutant agent diethyl sulfate (DES). The polymorphic loci ranged from 87.5 to 100%, number of effective alleles (Ne) between 1.0 and 1.99. The most polymorphic loci were observed in TG, AG, ACA, and CGA, which showed a mean unbiased heterosis between 0.34 and 0.51 with an average of 0.44, which allows establishing that these markers are useful to obtain greater discrimination between mutants in S. betaceum. Genetic distances ranged from 0.30 to 1.0. The 81.28% of these records were between 0.60 and 0.90. This reveals a low level of changes due to DES. These small changes contribute to enriching the genetic variability of the DES-treated sample. The RAMs markers were useful for detecting changes between plants from DES treated seeds and normal plants. Genetic variability between DES treatments was higher than non-DES treatments. Genetic similarities were low between treated and untreated plants and were high among untreated plants. The changes produced by DES were of low magnitude, however, they produced changes in the levels of genetic variability.

Abstract: The present study aims to examine the dimensions of corporate sustainability as resources that support green organizational cultural development. A positivist paradigm methodology, explanatory and correlational in scope, is applied by using a survey as the primary information collection tool along with a questionnaire with a Likert scale. The sample (n = 34) is composed by hotel sector managerial staff of small and medium-sized enterprises (SMEs) from Barranquilla (Colombia). The results show the insertion of a group of thoughts, feelings, and perceptions on environmental management that give origin to the criterion of green organizational culture. It is concluded that corporate sustainability is one of the most important elements for the evolution of enterprises towards adaptation to current dynamics of sustainable development.

Resumen: El presente estudio tiene como propósito examinar las dimensiones de sostenibilidad corporativa como recursos que argumentan el desarrollo cultural organizacional verde. Se aplica una metodología de paradigma positivista, con alcance correlacional explicativo, utilizándose la encuesta como técnica de recolección de información primaria y un cuestionario con escala Likert. La muestra (n = 36) está compuesta por personal directivo de pequeñas y medianas empresas (PYMEs) del sector hotelero de Barranquilla (Colombia). Los datos recopilados son procesados por medio de estadísticos descriptivos e inferenciales como la regresión lineal múltiple. Los resultados evidencian la inserción de un grupo de pensamientos, sentimientos y percepciones con relación a la administración ambiental que ofrecen origen al criterio de cultura organizacional verde. Se concluye que la sostenibilidad dentro del marco corporativo es uno de los elementos más importantes para la evolución de las organizaciones hacia su adaptación a las dinámicas actuales del desarrollo sostenible.

ABSTRACT BACKGROUND: The intensity of the thromboprophylaxis needed as a potential factor for preventing inpatient mortality due to coronavirus disease-19 (COVID-19) remains unclear. OBJECTIVE: To explore the association between anticoagulation intensity and COVID-19 survival. DESIGN AND SETTING: Retrospective observational study in a tertiary-level hospital in Spain. METHODS: Low-molecular-weight heparin (LMWH) status was ascertained based on prescription at admission. To control for immortal time bias, anticoagulant use was analyzed as a time-dependent variable. RESULTS: 690 patients were included (median age, 72 years). LMWH was administered to 615 patients, starting from hospital admission (89.1%). 410 (66.7%) received prophylactic-dose LMWH; 120 (19.5%), therapeutic-dose LMWH; and another 85 (13.8%) who presented respiratory failure, high D-dimer levels (> 3 mg/l) and non-worsening of inflammation markers received prophylaxis of intermediate-dose LMWH. The overall inpatient-mortality rate was 38.5%. The anticoagulant nonuser group presented higher mortality risk than each of the following groups: any LMWH users (HR 2.1; 95% CI: 1.40-3.15); the prophylactic-dose heparin group (HR 2.39; 95% CI, 1.57-3.64); and the users of heparin dose according to biomarkers (HR 6.52; 95% CI, 2.95-14.41). 3.4% of the patients experienced major hemorrhage. 2.8% of the patients developed an episode of thromboembolism. CONCLUSIONS: This observational study showed that LMWH administered at the time of admission was associated with lower mortality among unselected adult COVID-19 inpatients. The magnitude of the benefit may have been greatest for the intermediate-dose subgroup. Randomized controlled trials to assess the benefit of heparin within different therapeutic regimes for COVID-19 patients are required.

RESUMO Objetivo. Avaliar as características, o uso autorrelatado de tabaco, o conhecimento e as percepções sobre o abandono do tabagismo entre os profissionais da área de oncologia (PAO), bem como as barreiras percebidas, a fim de guiar intervenções que possam melhorar as taxas de abandono e o prognóstico de pacientes com câncer na América Latina. Métodos. Realizou-se um estudo transversal com 996 PAO em seis instituições de oncologia localizadas na Argentina, no Brasil, na Colômbia, no México e no Peru. Administrou-se uma pesquisa on-line com 28 perguntas fechadas, adaptadas do levantamento realizado em 2012 pela Associação Internacional para o Estudo do Câncer de Pulmão e do Global Adult Tobacco Survey (Levantamento Global do Tabagismo em Adultos). Resultados. A maioria dos PAO, variando de 86,1% (no México) a 95,9% (no Brasil), concordou parcial ou totalmente com a necessidade de integrar o abandono do tabagismo ao tratamento do câncer. Entretanto, o treinamento inadequado sobre o abandono do tabagismo foi relatado por 66,9% no México, 69,4% na Colômbia (Floridablanca), 70,4% na Argentina, 72,9% no Peru, 85,8% no Brasil e 86,4% na Colômbia (Medellín), e essa diferença foi estatisticamente significante (p < 0,001). Além disso, a prevalência atual de consumo de cigarro entre os PAO foi de 2,5% no Brasil, 4,6% no Peru, 6,3% na Colômbia (Floridablanca), 10,4% na Colômbia (Medellín), 11,5% no México, e 15,1% na Argentina, mostrando uma diferença estatisticamente significante (p < 0,001). Conclusões. Os esforços na América Latina devem ser direcionados para o auxílio aos PAO em seus esforços de abandonar o tabagismo e para o treinamento sobre métodos para abandono do tabagismo, com o objetivo de melhorar o prognóstico e a qualidade de vida dos pacientes com câncer.

RESUMEN Objetivo. Evaluar entre los prestadores de atención a pacientes con cáncer las características, el consumo de tabaco referido por la misma persona, sus conocimientos y sus impresiones acerca de dejar de fumar, así como los obstáculos percibidos, para sustentar las intervenciones que puedan mejorar las tasas de abandono del consumo y el pronóstico de los pacientes con cáncer en América Latina. Métodos. Se realizó un estudio transversal con 996 prestadores de atención oncológica en seis instituciones oncológicas ubicadas en Argentina, Brasil, Colombia, México y Perú. Se realizó una encuesta en línea con 28 preguntas cerradas adaptadas de la encuesta de la Asociación Internacional para el Estudio del Cáncer de Pulmón del 2012 y la Encuesta Mundial de Tabaquismo en Adultos. Resultados. La mayoría de los prestadores de atención oncológica, del 86,1% en México al 95,9% en Brasil, estuvieron de acuerdo o muy de acuerdo con que el abandono del tabaco debería integrarse en el tratamiento del cáncer. Sin embargo, 66,9%, 69,4%, 70,4%, 72,9%, 85,8% y 86,4% en México, Colombia (Floridablanca), Argentina, Perú, Brasil y Colombia (Medellín), respectivamente, dieron parte de una formación inadecuada en cuanto al abandono del tabaco, y esta diferencia fue estadísticamente significativa (p < 0,001). Además, la prevalencia actual del consumo de tabaco entre los proveedores de atención oncológica fue de 2,5% en Brasil, 4,6% en Perú, 6,3% en Colombia (Floridablanca), 10,4 % en Colombia (Medellín), 11,5% en México y 15,1% en Argentina, y mostró una diferencia estadísticamente significativa (p < 0,001). Conclusiones. En América Latina, deben canalizarse los esfuerzos para ayudar a los prestadores de atención oncológica a abandonar el consumo de tabaco y apoyarlos en la capacitación acerca de las prácticas de abandono del tabaco dirigidas a lograr un pronóstico más favorable y mejorar la calidad de vida de los pacientes con cáncer.

ABSTRACT Objective. To assess the characteristics, self-reported tobacco use, knowledge, and perceptions about smoking cessation among cancer care providers (CCPs), as well as perceived barriers to inform interventions that can potentially improve quitting rates and the prognosis of cancer patients in Latin America. Methods. A cross-sectional study was conducted among 996 CCPs in six cancer institutions located in Argentina, Brazil, Colombia, Mexico, and Peru. An online survey consisting of 28 close-ended questions adapted from the 2012 International Association for the Study of Lung Cancer survey and the Global Adult Tobacco Survey was administered. Results. The majority of CCPs, ranging from 86.1% in Mexico to 95.9% in Brazil, agreed or strongly agreed that smoking cessation should be integrated into cancer treatment. However, inadequate training on smoking cessation was reported by 66.9%, 69.4%, 70.4%, 72.9%, 85.8%, and 86.4% in Mexico, Colombia (Floridablanca), Argentina, Peru, Brazil, and Colombia (Medellín), respectively, and this difference was statistically significant (p < 0.001). Moreover, current cigarette smoking prevalence among CCPs was 2.5% in Brazil, 4.6% in Peru, 6.3% in Colombia (Floridablanca), 10.4% in Colombia (Medellín), 11.5% in Mexico, and 15.1% in Argentina, showing a statistically significant difference (p < 0.001). Conclusions. Efforts in Latin America should be geared toward assisting CCPs with their quitting efforts and training in smoking cessation practices aimed at achieving a better prognosis and improving cancer patients’ quality of life.

Abstract Objective: Identify associated factors for recurrent wheezing (RW) in male and female infants. Methods: Cross-sectional multicentric study using the standardized questionnaire from the Estudio Internacional sobre Sibilancias en Lactantes (EISL). The questionnaire was applied to parents of 9345 infants aged 12-15 months at the time of immunization/routine visits. Results: One thousand two hundred and sixty-one (13.5%) males and nine hundred sixty-three (10.3%) females have had RW (≥3 episodes), respectively (p10 colds episodes (OR = 3.46; IC 95% 2.35-5.07), air pollution (OR = 1.33; IC 95% 1.12-1.59), molds at home (OR = 1.23; IC 95% 1.03-1.47), Afro-descendants (OR = 1.42; IC 95% 1.20-1.69), bronchopneumonia (OR = 1.41; IC; 1.11-1.78), severe episodes of wheezing in the first year (OR = 1.56; IC 95% 1.29-1.89), treatment with bronchodilators (OR = 1.60; IC 95% 1.22-2,1) and treatment with oral corticosteroids (OR = 1,23; IC 95% 0.99-1,52). Associated factors for RW for females were passive smoking (OR = 1.24; IC 95% 1.01-1,51), parents diagnosed with asthma (OR = 1.32; IC 95% 1,08-1,62), parents with allergic rhinitis (OR = 1.26; IC 95% 1.04-1.53), daycare attendance (OR = 1.48; IC 95% 1.17-1,88), colds in the first 6 months of life (OR = 2.19; IC 95% 1.69-2.82), personal diagnosis of asthma (OR = 1.84; IC 95% 1.39-2.44), emergency room visits (OR = 1.78; IC 95% 1.44-2.21), nighttime symptoms (OR = 2.89; IC 95% 2.34-3.53) and updated immunization (OR = 0.62; IC 95% 0.41-0.96). Conclusion: There are differences in associated factors for RW between genders. Identification of these differences could be useful to the approach and management of RW between boys and girls.