ABSTRACT There is great interest in varieties with greater competitive ability against weeds. This can be facilitated by path analysis, which involves the statistical evaluation and interpretation of the relationship between yield and its components. In this analysis, the occurrence of multicollinearity results in inconsistent estimates of the coefficients, and overestimates of the direct effects of the explanatory variables on the response variable. The aim of this study was to identify the characteristics with the greatest direct effect on pod yield and green and dry bean yields in traditional cowpea varieties, evaluated in competition with weeds in two experiments. In addition, the presence of multicollinearity was investigated in the analyses. In Experiment-1, twelve varieties with the highest bean yields in a preliminary evaluation were assessed in a randomized block design with five replications. In Experiment-2, six varieties, selected in the preliminary evaluation, were assessed using two methods of weed management: three of the most productive and three of the least productive. Randomized blocks and split plots were used, with five replications. Multicollinearity, indicated by the number of conditions and the variance inflation values, was greater in Experiment-2. In the six cases under study (three yields x two experiments), the number of pods per plant had the greatest direct effect on yield. analysis components coefficients variable experiments addition analyses Experiment1, Experiment1 Experiment 1, 1 Experiment-1 replications Experiment2, Experiment2 2, 2 Experiment-2 management used Multicollinearity values Experiment2. 2. experiments, , experiments) Experiment-

ABSTRACT Due to the importance of grain production, and the need to work the soil under limited moisture, the aim of this study was to develop computer software to predict the tractive capacity of wheeled tractors for two types of tyre, the effect of different inflation pressures and levels of soil moisture. A mathematical model was developed to predict the tractive capacity of a 4 x 2 AFT tractor. Software was developed and tested by comparing the computational data with those from tests of a working tractor in the field. The parameters under evaluation were drawbar force and front and rear drive wheel slip. At both moisture levels, the bias tyres had the lowest front to rear slip ratio at the lower pressure; the ratios were similar when equipped with radial tyres. The bias tyres show maximum force at a slip ratio of 1.09 at the higher pressure and 1.03 at the lower, while for the radial tyres the ratio was 1.05 at the higher pressure and 1.07 at the lower. Software was developed to process data from the model, with the results used for estimating the tractive force of the tractor. The tractive force was overestimated by the model, which needs further adjustment for direct application in the field. production tyre field 109 1 09 1.0 103 03 105 05 107 07 10 0 1.

Novel nanocomposites synthesized with pollen grain, as a precursor, were tested for CO2 adsorption performance. The pollen-derived carbons were obtained by direct calcination (PC), calcination followed by KOH-chemical activation (PCKOH), and MgO incorporation using high-energy ball-milling (PC-MgO and PCKOH-MgO). All the as-prepared materials were texturally, morphologically and structurally characterized by N2 physisorption, scanning electron microscopy (SEM-EDS) and X-ray diffraction (XRD); CO2 adsorption/desorption was measured by thermogravimetry. The four materials were able to adsorb CO2 at 30 ºC and 1 bar, but PCKOH-MgO, with the high surface area (12.4 m2 g-1), total pore volume of (0.13 cm3 g-1) and microporosity, was the best (2.06 mmol g-1 and percentage of adsorption (Qad) = 9.06%, at 1 bar). This result is due to the synergic effect of both synthesis methods. Neither temperature (from 30 to 100 ºC), nor pressure (from 1 to 15 bar), improved the adsorption process of PCKOH-MgO. CO2 desorption times at 300 ºC were 47 min for PCKOH-MgO and 30 min for the other adsorbents, showing the possibility of cycling. Based on the obtained results, the PCKOH-MgO activated carbon nanocomposite stands as a promising adsorbent to be potentially used for industrial CO2 capture applications and to contribute to long-term solutions to avoid dangerous climate-change and reduce CO2 emissions. grain precursor CO performance pollenderived derived PC, PC , (PC) KOHchemical KOH chemical PCKOH, PCKOH (PCKOH) highenergy energy ballmilling ball milling PCMgO PCKOHMgO. PCKOHMgO . PCKOH-MgO) asprepared prepared texturally N physisorption SEMEDS SEM EDS (SEM-EDS Xray X ray XRD (XRD) adsorptiondesorption thermogravimetry 3 bar PCKOHMgO, MgO, 12.4 124 12 4 (12. m g1, g1 g 0.13 013 0 13 (0.1 cm microporosity 2.06 206 2 06 (2.0 g- Qad (Qad 906 9 9.06% bar. bar) methods from 10 ºC, ºC) MgO. adsorbents cycling results longterm long term climatechange climate change emissions (PC (PCKOH (XRD 12. (12 0.1 01 (0. 2.0 20 (2. 90 9.06 (1 0. (0 2. (2 9.0 ( 9.

ABSTRACT The development of aquaculture through the cultivation of what are considered unconventional species is an option with the potential to solve the problem of food scarcity. The aim of the present study was to evaluate the zootechnical performance of juvenile Pomacea haustrum fed different commercial diets, and subjected to different levels of salinity. After seven P. haustrum spawn had hatched in the laboratory, the juveniles were randomly selected and transferred to the rearing containers. Two different commercial diets were offered: rabbit feed with a high proportion of ingredients rich in crude vegetable protein (VP), and dog food containing balanced levels of ingredients rich in crude vegetable and animal protein (MP). The selected juveniles were randomly stocked at different salinities (0, 2 and 4 parts per thousand - ppt). The experiment lasted 65 days. Twenty-one hours after the start of the experiment, 100% of the individuals reared at a salinity of 4 ppt had died. There was a significant difference (p ≤ 0.05) between the results for zootechnical performance (average final weight, weight gain, average final growth, specific growth rate, protein efficiency and apparent feed conversion) for animals reared in fresh water or at a salinity of 2 ppt, regardless of the type of diet. The origin of the protein in the diet had no significant effect on the zootechnical performance of the individuals; however, the salinity of the water impaired development of the animals in direct proportion to its concentration. scarcity P laboratory containers offered VP, VP , (VP) MP. MP . (MP) 0, 0 (0 ppt. ppt) 6 days Twentyone Twenty one 100 died p 0.05 005 05 gain rate conversion however concentration (VP (MP ( 10 0.0 00 1 0.

ABSTRACT BACKGROUND: Studies have shown an association between the clinical severity of coronavirus disease (COVID-19) and sociodemographic and clinical variables in older adults. However, few studies have described the explanatory factors of the relationship between these variables and the clinical severity of COVID-19 using structural equation modeling. OBJECTIVE: To analyze the factors directly and indirectly associated with the clinical severity of coronavirus disease (COVID-19) among older adults in Minas Gerais, Brazil. DESIGN AND SETTING: Retrospective epidemiological study. METHODS: This study included 51,141 elderly adults with COVID-19 living in Minas Gerais, Brazil. Data were collected through the Individual Registration Form – Hospitalized Cases of Severe Acute Respiratory Syndrome from January 28, 2020, to January 27, 2022. RESULTS: Older age (P < 0.001), male sex (P < 0.001), dyspnea (P < 0.001), change in chest X-ray examination findings (P < 0.001), greater number of risk factors/comorbidities (P < 0.001), and longer hospitalization time (P < 0.001) were directly associated with the clinical severity of COVID-19. Female sex, mediated by the greater number of risk/comorbidity factors (β = -0.02, P < 0.001), and younger age, mediated by longer hospitalization time (β = -0.01; P < 0.001), were indirectly associated with the clinical severity of COVID-19. CONCLUSION: Demographic and clinical variables were directly associated with increased disease severity. In addition to the direct effect, a greater number of risk/comorbidity factors and longer hospitalization time mediated the association between demographic variables and outcomes. BACKGROUND COVID19 COVID 19 (COVID-19 However COVID-1 modeling OBJECTIVE Gerais Brazil SETTING METHODS 51141 51 141 51,14 28 2020 27 2022 RESULTS 0.001, 0001 0.001 , 0 001 Xray X ray factorscomorbidities comorbidities COVID19. 19. riskcomorbidity comorbidity β 0.02, 002 02 -0.02 0.01 01 -0.01 CONCLUSION effect outcomes COVID1 1 (COVID-1 COVID- 5114 5 14 51,1 2 202 000 0.00 00 0.02 -0.0 0.0 (COVID- 511 51, 20 -0. 0. (COVID -0 -

Abstract: The present study aimed to investigate the moderating effect of perceived punishment on the relationship between the Dark Triad personality traits and corruption in Brazil (N = 118) and the United Kingdom (N = 130). Participants answered the Dark Triad Dirty Dozen Scale, as well as measures of corruption and perceived punishment. It was found that punishment predicts corruption in both countries. Regarding the Dark Triad traits, a relationship between Machiavellianism and corruption was identified in Brazil and the United Kingdom, although an interaction with punishment was identified only in Brazil. Moreover, psychopathy had no relationship with corruption or punishment in either country. A direct relationship was found only in Brazil on narcissism, although the interaction term was significant in both countries. In general, it was identified that perceived punishment and the dark triad traits contribute to the understanding of corruption, despite some differences in the results between Brazil and the United Kingdom.

Resumo: O presente estudo tem como objetivo investigar o papel moderador da percepção de punição na relação entre Tríade Sombria da personalidade e corrupção no Brasil (N = 118) e no Reino Unido (N = 130). Participantes responderam à Escala Dark Triad Dirty Dozen, bem como a medidas de corrupção e percepção de punição. Foi encontrado que a punição prediz a corrupção em ambos os países. Em relação à Tríade Sombria, o relacionamento entre maquiavelismo e corrupção foi identificado no Brasil e no Reino Unido, embora a interação com a punição tenha sido identificada apenas no Brasil. Adicionalmente, a psicopatia não teve relação com a corrupção ou com a punição em nenhum dos países. Um efeito direto do narcisismo foi encontrado apenas no Brasil, apesar do termo de interação ter sido significativo em ambos os países. De forma geral, foi identificado que a percepção de punição e a tríade sombria contribuíram com a compreensão da corrupção, apesar de algumas diferenças nos resultados entre Brasil e Reino Unido.

Resumen: El presente estudio tuvo como objetivo investigar el efecto moderador del castigo percibido sobre la relación entre los rasgos de personalidad de la tríada oscura y la corrupción en Brasil (N = 118) y en el Reino Unido (N = 130). Los participantes respondieron a la Escala de la Docena Sucia de la Triada Oscura, así como a medidas de corrupción y castigo percibido. Se encontró que el castigo predice la corrupción en ambos países. En cuanto a los rasgos de la tríada oscura, se identificó una relación entre el maquiavelismo y la corrupción en Brasil y en el Reino Unido, aunque se identificó una interacción con el castigo solo en Brasil. Además, la psicopatía no tuvo relación con la corrupción o el castigo en ninguno de los dos países. Se encontró una relación directa solo en Brasil con el narcisismo, aunque la interacción fue significativa en ambos países. En general, se identificó que el castigo percibido y los rasgos de la tríada oscura contribuyen a la comprensión de la corrupción, a pesar de algunas diferencias en los resultados entre Brasil y el Reino Unido.

Resumen: La meditación es una herramienta eficaz para promover el bienestar psicológico y manejar el estrés y los trastornos psicológicos asociados con situaciones académicas, clínicas y asistenciales altamente demandantes en contextos académicos sanitarios. Este artículo evalúa el impacto de intervenciones basadas en la meditación, en el bienestar psicológico de estudiantes de ciencias de la salud. Se buscaron ensayos clínicos controlados en la Biblioteca virtual de Salud (BVS), Biblioteca Cochrane, Trip Database, Sage Pub, Springer Link, Wiley Online Library, Medline (vía PubMed), Europe PMC, ScienceDirect, APA PsycInfo y ERIC. Se identificaron 651 estudios. Se incluyeron 13 estudios que cumplieron con los criterios de elegibilidad. Se encontró que la práctica de meditación no clínica, predominantemente mediante intervenciones basadas en la atención plena (mindfulness), realizadas en contextos académicos tiene un efecto positivo en el bienestar psicológico y en la competencia socioemocional del estudiantado. Los beneficios a largo plazo dependen de que los estudiantes practiquen la meditación regularmente. Estos hallazgos tienen implicaciones para la educación sanitaria. Sugieren integrar la meditación como un enfoque preventivo para mejorar el bienestar psicológico del estudiantado.

Resumo: A meditação é uma ferramenta eficaz para promover o bem-estar psicológico, administrar o estresse e os transtornos psicológicos associados a situações acadêmicas, clínicas e assistenciais altamente demandantes em contextos acadêmicos sanitários. Este artigo avalia o impacto de intervenções baseadas na meditação para o bem-estar psicológico de estudantes de Ciências da Saúde. Foram buscados ensaios clínicos controlados na Biblioteca Virtual de Saúde (BVS), Biblioteca Cochrane, Trip Database, Sage Pub, Springer Link, Wiley Online Library, Medline (via PubMed), Europe PMC, Science Direct, APA PsycInfo e ERIC. Foram identificados 651 estudos. Foram incluídos 13 estudos que cumpriram os critérios de elegibilidade. Foi encontrado que a prática da meditação não clínica, predominantemente por meio de intervenções baseadas na atenção plena (mindfulness), realizadas em contextos acadêmicos, tem um efeito positivo no bem-estar psicológico e na competência socioemocional dos estudantes. Os benefícios a longo prazo dependem de que os estudantes pratiquem a meditação regularmente. Essas descobertas têm implicações para a educação sanitária. Sugerimos integrar a meditação como uma abordagem preventiva para melhorar o bem-estar psicológico dos estudantes.

Abstract: Meditation is an effective tool to promote psychological well-being and manage stress and psychological distress associated with highly demanding academic, clinical and healthcare situations in academic health contexts. This paper evaluates the impact of meditation-based interventions on the psychological well-being of health occupations students. Controlled clinical trials were searched in the Biblioteca virtual de Salud (BVS), Cochrane Library, Trip Database, Sage Pub, Springer Link, Wiley Online Library, Medline (via PubMed), Europe PMC, ScienceDirect, APA PsycInfo, and ERIC. 651 studies were identified. Thirteen studies that met the inclusion criteria were included. It was found that non-clinical meditation practice, mainly through mindfulness-based interventions, carried out in academic contexts has a positive effect on the psychological well-being and socio-emotional competence of the student body. Long-term benefits depend on students practicing meditation regularly. These findings have implications for health education. They suggest integrating meditation as a preventive approach to improve the psychological well-being of students.

Resumen Introducción: Las experiencias de discriminación étnico-raciales son estresores sociales que afectan la salud mental de quienes las sufren. A pesar de que se trata de un fenómeno vigente, los trabajos que han examinado los efectos de la discriminación en la salud mental en Perú y Latinoamérica son escasos. Por ello, el objetivo principal de este estudio es explorar el rol mediador del neuroticismo y la ira en la relación entre las experiencias de discriminación y los rasgos de personalidad oscuros en población peruana. Método: Se contó con la participación de 632 personas con edades de entre 18 y 63 años (M = 25.03; DE = 8.03). Se utilizaron la Escala de Experiencias de Discriminación (EOD), los ítems que miden neuroticismo del Big Five Inventory - 10 (BFI-10), la Escala de Propensión a la Ira (APS - G) y la Dirty Dozen Dark Triad (DDDT). Mediante regresión estructural se creó un modelo explicativo. Resultados: El ajuste del modelo fue excelente (CFI = .975, TLI = .970, RMSEA = .043 y SRMR = .051) y mostró que las experiencias de discriminación tienen un efecto directo sobre el neuroticismo, el cual predice de manera robusta la propensión a la ira, y esta, a su vez, es predictora, en mayor medida, del maquiavelismo, el narcisismo y la psicopatía, respectivamente. Conclusión: El neuroticismo y la ira son mediadores seriados en la relación entre las experiencias de discriminación y los rasgos oscuros de personalidad.

Abstract Introduction: Experiences of racial-ethnic discrimination are social stressors that affect the mental health of those who suffer it. Although it is a current phenomenon, few studies have examined the effects of discrimination on mental health in Peru and Latin America. Therefore, the aim of this study was to explore the mediating role of neuroticism and anger in the relationship between experiences of discrimination and dark personality traits in a Peruvian population. Method: A total of 632 participants between 18 and 63 years of age participated (M = 25.03; SD = 8.03). The Experiences of Discrimination Scale (EOD), the items measuring neuroticism from the Big Five Inventory - 10 (BFI-10), the Anger Propensity Scale (APS - G) and the Dirty Dozen Dark Triad (DDDT) were used. An explanatory model was created using structural regression. Results: The model fit was excellent (CFI = .975, TLI = .970, RMSEA = .043 y SRMR = .051), showing that discrimination experiences have a direct effect on neuroticism, which robustly predicts anger proneness and this, in turn, is more predictive of Machiavellianism, narcissism and psychopathy, respectively. Conclusion: Neuroticism and anger are serial mediators in the relationship between discrimination experiences and dark personality traits.

Abstract Introduction: There is a close relationship between mental health and eating styles. Mental health indicators such as anxious and depressive symptomatology have reported direct effects on eating styles that promote excess malnutrition such as emotional or restrictive eating. The aim was to analyze the effect of anxious and depressive symptomatology on eating styles in women and men from northern and central Chile. Method: Nine hundred and ten adults living in northern and central Chile participated in the study. The Dutch Eating Behavior Questionnaire (DEBQ), the Beck Anxiety Inventory (BAI) and the Beck Depression Inventory-II (BDI-II) were administered. The analysis of the global model of the relationship between variables was carried out using structural equation modeling. Results: The structural model presented adequate goodness-of-fit indicators, anxious symptomatology had a direct and significant effect on emotional eating, external eating and restrictive eating. On the other hand, depressive symptomatology, did not present significant effects on any eating style. Conclusions: As anxiety levels increase, levels of all eating styles increase. Depression, could interact mediating the relationship by the emotional context that generates the depressive symptomatology.

Resumen Antecedentes: existe una estrecha relación entre salud mental y estilos de alimentación. Indicadores de salud mental como sintomatología ansiosa y depresiva han reportado efectos directos sobre estilos de alimentación que promueven la malnutrición por exceso como la alimentación emocional o restrictiva. Se analizó el efecto de la sintomatología ansiosa y depresiva sobre los estilos de alimentación en mujeres y hombres del norte y centro de Chile. Método: participaron 910 adultos residentes en el norte y centro de Chile; se aplicó el Cuestionario Holandés de Conducta Alimentaria (DEBQ), así como el Inventario de Ansiedad de Beck (BAI) y el Inventario de Depresión de Beck-II (BDI-II). El análisis del modelo global de la relación entre variables se realizó mediante modelos de ecuaciones estructurales. Resultados: el modelo global presentó adecuados indicadores de bondad de ajuste; la sintomatología ansiosa tuvo un efecto directo y significativo sobre la alimentación emocional, alimentación externa y alimentación restrictiva. Por su parte, la sintomatología depresiva no presentó efectos significativos sobre ningún estilo de alimentación. Conclusiones: a medida que aumentan los niveles de ansiedad, aumentan los niveles de todos los estilos de alimentación. La depresión podría interactuar mediando la relación por el contexto emocional que genera la sintomatología depresiva.

Abstract: Illegitimate tasks are defined as tasks that employees perceive as unfair and unnecessary, which can cause work stress and affect work identity. These, in turn, increase burnout, especially in complex organizations. The present study suggests that work identity plays a mediating role in the association between illegitimate tasks and burnout, whereby the higher the perception of illegitimate tasks, the lower the employee's work identity and the higher the level of burnout. To assess this relationship, a group of 135 employees from a Chilean educational institution completed a series of questionnaires to assess each of the variables, including the BERN Illegitimate Tasks Scale, the Maslach Burnout Inventory, and the Workplace Identity Scale. The study used a longitudinal design, with data collected at two-time points (T1 and T2), with a six-week interval between them. Initially, analyses were conducted using data from T1 alone, and subsequently, analyses were performed using data from both time points (T1 and T2). Results indicate that illegitimate tasks have a greater direct effect on burnout than the effect mediated by work identity and that illegitimate tasks have a significant direct effect on burnout but not on reported burnout six weeks later. Illegitimate tasks have a direct effect on burnout, and work identity acts as a mediator in this relationship. The relevance of these variables must be recognized in organizational settings. Optimizing working conditions and strengthening work identity will benefit not only employees but also the organization.

Resumo: As tarefas ilegítimas são definidas como atribuições que os empregados consideram injustas e desnecessárias, as quais podem causar estresse laboral e afetar a identidade laboral, aumentando, por sua vez, os níveis de burnout, especialmente em organizações complexas. O presente estudo propõe que a identidade laboral desempenha um papel mediador na relação entre as tarefas ilegítimas e o burnout; portanto, quanto maior a percepção de tarefas ilegítimas, o empregado reportará menores níveis de identidade laboral e maiores níveis de burnout. Para avaliar essa relação, um grupo de 135 trabalhadores de uma instituição educacional chilena respondeu a um questionário sociodemográfico e aos instrumentos Bern Illegitimate Tasks Scale BITS), Maslach Burnout Inventory (MBI-GS), e Workplace Identity Scale (WIS). O estudo empregou um design longitudinal, com coletas de dados realizadas em dois momentos (T1 e T2), com um intervalo de seis semanas entre eles. Em primeiro lugar, foram realizadas análises considerando apenas os dados de T1 e, posteriormente, análises que incluíram ambos os períodos de medição (T1 e T2). Os resultados revelaram que as tarefas ilegítimas têm um efeito direto sobre o burnout maior do que o efeito mediado pela identidade laboral e que as tarefas ilegítimas teriam um efeito significativo direto sobre o burnout, mas não sobre o burnout reportado seis semanas depois. As tarefas ilegítimas têm um impacto direto no esgotamento laboral e a identidade laboral atua como um fator mediador nesta relação. É essencial que, dentro do âmbito organizacional, se reconheça a relevância destas variáveis. Otimizar as condições de trabalho e reforçar a identidade laboral não só beneficia aos empregados, mas também as organizações

Resumen: Las tareas ilegítimas se definen como las asignaciones que los empleados consideran injustas e innecesarias, las cuales pueden causar estrés laboral y afectar la identidad laboral, lo que aumenta los niveles de burnout, especialmente en organizaciones complejas. El presente estudio plantea que la identidad laboral ejerce un rol mediador en la relación entre las tareas ilegítimas y el burnout, por lo que, a mayor percepción de tareas ilegítimas, el empleado reportará menores niveles de identidad laboral y mayores niveles de burnout. Para evaluar esta relación, un grupo de 135 trabajadores de una institución educativa chilena contestó un cuestionario sociodemográfico y los instrumentos Bern Illegitimate Tasks Scale (BITS), Maslach Burnout Inventory (MBI-GS) y Workplace Identity Scale (WIS). El estudio tiene un diseño longitudinal y los datos se obtuvieron en dos momentos (T1 y T2), separados entre sí por seis semanas. En primer lugar, se realizaron análisis considerando solo T1 y posteriormente se realizaron análisis considerando ambos tiempos de medición (T1 y T2). Los resultados revelaron que las tareas ilegítimas tienen un efecto directo sobre el burnout, mayor que el efecto mediado por la identidad laboral, y que las tareas ilegítimas tendrían un efecto significativo directo sobre el burnout, pero no sobre el burnout reportado seis semanas después. Las tareas ilegítimas tienen un impacto directo en el agotamiento laboral y la identidad laboral actúa como un factor mediador en esta relación. Es esencial que, dentro del ámbito organizacional, se reconozca la relevancia de estas variables. Optimizar las condiciones de trabajo y reforzar la identidad laboral no solo beneficia a los empleados, sino que también a las organizaciones.

Abstract Introduction: Patients with end-stage renal disease often face a challenging routine of hemodialysis, dietary restrictions, and multiple medications, which can affect their hemodynamic function. Home-based, safe, and nonpharmacological approaches such as transcranial direct current stimulation (tDCS) should be combined with conventional treatment. Objective: To assess the safety and feasibility of tDCS on blood pressure and heart rate in patients with end-stage renal disease undergoing hemodialysis. Method: This is a parallel, randomized, sham-controlled trial. Patients undergoing hemodialysis for more than three months were included. The patients received ten non-consecutive 2mA tDCS sessions on the primary motor cortex . Each session lasted 20 minutes. At baseline and after each of the ten sessions, blood pressure and heart rate of the patients were measured hourly for four hours. Results: Thirty patients were randomized to the active or sham group. The mean difference between the groups was calculated as the mean value of the sham group minus the mean value of the active group. Despite there were no statistical changes for all outcomes considering all 10 sessions, we found differences between groups for systolic –10.93 (–29.1;7.2), diastolic –3.63 (–12.4; 5.1), and mean blood pressure –6.0 (–16.3; 4.2) and hear rate 2.26 (–2.5; 7.1). No serious adverse events were found. The active group showed higher blood pressure values at all points, while heart rate was lower in the active group. Conclusion: tDCS is safe and feasible for patients with end-stage renal disease undergoing hemodialysis. Future studies should investigate whether tDCS could potentially induce a hypotensive protective effect during hemodialysis. Introduction endstage end stage restrictions medications function Homebased, Homebased Home based, based Home-based (tDCS treatment Objective Method parallel shamcontrolled controlled trial included nonconsecutive non consecutive mA 2 minutes hours Results 1 1093 93 –10.9 –29.17.2, 29172 –29.1 7.2 , 29 7 (–29.1;7.2) 363 3 63 –3.6 –12.4 124 12 4 (–12.4 5.1, 51 5.1 5 5.1) 60 6 0 –6. –16.3 163 16 (–16.3 4.2 42 226 26 2.2 –2.5 25 (–2.5 7.1. 71 7.1 7.1) points Conclusion 109 9 –10. 17 –29.17.2 2917 291 –29. 72 7. (–29.1;7.2 36 –3. –12. (–12. 5. –6 –16. (–16. 4. 22 2. –2. (–2. –10 –29.17. –29 (–29.1;7. –3 –12 (–12 – –16 (–16 –2 (–2 –1 –29.17 (–29.1;7 (–1 (– (–29.1; ( (–29.1 (–29. (–29

Resumo Introdução: Pacientes com doença renal em estágio terminal (DRET) geralmente enfrentam uma rotina desafiadora de hemodiálise, restrições alimentares e diversos medicamentos, podendo afetar sua função hemodinâmica. Abordagens domiciliares, seguras e não farmacológicas, como a estimulação transcraniana por corrente contínua (ETCC), devem ser combinadas com tratamento convencional. Objetivo: Avaliar segurança e viabilidade da ETCC na pressão arterial e frequência cardíaca em pacientes com DRET em hemodiálise. Método: Estudo paralelo, randomizado, controlado por placebo. Foram incluídos pacientes em hemodiálise por mais de três meses. Os pacientes receberam dez sessões não consecutivas de ETCC de 2mA no córtex motor primário. Cada sessão durou 20 minutos. No início do estudo e após cada uma das dez sessões, a pressão arterial e frequência cardíaca dos pacientes foram medidas a cada hora durante quatro horas. Resultados: Trinta pacientes foram randomizados para grupo ativo ou sham. A diferença média entre grupos foi calculada como valor médio do grupo sham menos valor médio do grupo ativo. Apesar de não haver alterações estatísticas para todos os desfechos considerando as 10 sessões, encontramos diferenças entre os grupos para pressão arterial sistólica –10,93 (–29,1; 7,2), diastólica –3,63 (–12,4; 5,1) e média –6,0 (–16,3; 4,2) e frequência cardíaca 2,26 (–2,5; 7,1). Não encontramos eventos adversos graves. O grupo ativo apresentou valores maiores de pressão arterial em todos os pontos, enquanto a frequência cardíaca foi menor no grupo ativo. Conclusão: ETCC é segura e viável para pacientes com DRET submetidos à hemodiálise. Estudos futuros devem investigar se a ETCC pode potencialmente induzir um efeito hipotensor protetor durante a hemodiálise. Introdução (DRET medicamentos hemodinâmica domiciliares farmacológicas ETCC, , (ETCC) convencional Objetivo Método paralelo randomizado placebo meses mA primário 2 minutos horas Resultados 1 1093 93 –10,9 –29,1 291 29 (–29,1 7,2, 72 7,2 7 7,2) 363 3 63 –3,6 –12,4 124 12 4 (–12,4 5,1 51 5 60 6 0 –6, –16,3 163 16 (–16,3 4,2 42 226 26 2,2 –2,5 25 (–2,5 7,1. 71 7,1 . 7,1) graves pontos Conclusão (ETCC 109 9 –10, –29, (–29, 7, 36 –3, –12, (–12, 5, –6 –16, (–16, 4, 22 2, –2, (–2, –10 –29 (–29 –3 –12 (–12 – –16 (–16 –2 (–2 –1 (–1 (– (

ABSTRACT The interaction between bean (Phaseolus vulgaris L.) genotypes and N-fixing microorganisms has the potential to be utilized in sustainable agricultural production. Thus, the aim of this study was to verify the effects of the interaction for growth, production and nodulation characteristics between the bacteria Rhizobium tropici and Azospirillum brasilense among different bean genotypes. The experiments were conducted in the Selvíria, Mato Grosso do Sul, Brazil, in 2018 and 2019, in randomized block design with three replicates in a 20 × 3 factorial scheme; 20 common bean genotypes were tested under three forms of inoculation (no inoculation, inoculation with R. tropici, co-inoculation of R. tropici + A. brasilense). The number of grains per pod and nodule mass had the most significant direct positive effect on grain yield. For nodulation, a positive correlation of strong magnitude was observed between mass of the aerial part and number of pods per plant (0.68), stem diameter and mass of nodules (0.92) and first pod insertion height and number of nodules (0.64). In the path analysis, the number of grains per pod had the most significant direct effect (0.57) on the grain productivity variable. Regarding nodulation characteristics, selection for nodule mass was preferred due to its direct effect on grain yield as opposed to the number of nodules, which has a negative effect. This suggests an advantage of larger nodules with greater individual mass than a large number of small nodules for both improved yield and N fixing by common bean plants.

Abstract: The objective of this pilot study is to describe the effects of different types of written corrective feedback on the acquisition of the simple past tense in English, in a higher education context. A quasi-experimental design is applied, with intact classes, with a pre- and post-test, and a control group. The sample consists of 62 university students who are Spanish native speakers L1 with an intermediate English level (B1). In general, the findings indicate that the experimental groups obtained better results than the control group in the post-test. However, due to certain limitations of the pilot study, the results must be viewed with caution. The results and analysis suggest that corrective feedback positively affects the acquisition of the simple past tense of English and that of all types of feedback, direct corrective feedback is the most effective.

Resumen: Este estudio piloto se propone como objetivo describir los efectos de los distintos tipos de retroalimentación correctiva escrita en la adquisición del pasado simple del inglés, en un contexto de educación superior. Se aplica un diseño cuasi-experimental, de clases intactas, con pre y post - test y grupo control. La muestra del estudio está constituida por 62 estudiantes universitarios, hablantes de español como L1, con nivel pre intermedio en inglés (B1). En general, los hallazgos indican que los grupos experimentales obtuvieron mejores resultados que el grupo control en el post-test. Sin embargo, debido a ciertas limitaciones del estudio piloto, los resultados hay que visualizarlos con cautela. A partir de los hallazgos y del análisis se concluye que la retroalimentación correctiva escrita sí tiene un efecto positivo en la adquisición del pasado simple del inglés y que, de todos los tipos, la directa es la más eficaz.

Resumen: El objetivo de este estudio es evaluar el efecto de la atmósfera, definida como el diseño consciente del ambiente de la tienda para crear ciertas respuestas en los compradores, en los valores de compra, la actitud hacia la compra y las emociones sobre la intención de recompra en una tienda online, basado en el modelo Estímulo-Organismo-Respuesta (S-O-R, por sus siglas en inglés). Aunque estos elementos han sido estudiados ampliamente en el contexto de tiendas físicas, artículos recientes que analizan la influencia de estos elementos en el ambiente online muestran la relevancia de estudios como este en investigaciones académicas actuales de mercadeo. Los resultados de una encuesta realizada a 306 usuarios de una tienda farmacéutica online, residentes de Venezuela y otros países de América Latina, se analizaron usando ecuaciones estructurales. Los hallazgos permiten concluir que el uso del modelo S-O-R es apropiado en la predicción del comportamiento de compra online, y confirman que el valor de compra hedónico tiene un impacto directo significativo tanto en la actitud hacia las compras como en la compra emocional. Por otra parte, el valor de compra utilitario afecta negativamente la compra emocional y el factor informático favorece la actitud hacia las compras. Por último, la actitud hacia las compras y la compra emocional predicen la intención de recompra. Se discuten las implicaciones para los especialistas en marketing.

Abstract: The objective of this study was to evaluate the effect of the online store atmosphere, shopping values, attitude toward online shopping and emotions on the repurchase intention in an online store, based on the Stimulus-Organism-Response model (S-O-R). Although these elements have been studied in the context of brick-and-mortar stores, recent articles that analyze the influence of these elements in the online environment demonstrate the relevance of this study in current marketing research. The results of an online survey conducted with 306 users of an online pharmaceutical store, which included residents of Venezuela and of other Latin American countries, were analyzed using structural equations, evaluating both the measurement model and the relationship model. The findings allow us to conclude that the use of the S-O-R model is appropriate in predicting online purchase behavior, having achieved an adequate fit, and confirm that the hedonic purchase value has a significant direct impact on both the attitude toward online shopping and the emotional purchase. On the other hand, the utilitarian purchase value negatively affects the emotional purchase and the computer factor favors the attitude toward online purchase. Finally, the attitude toward online shopping and the emotional purchase predicts the repurchase intention. Implications for marketers are discussed.

Abstract Grape ripening is a complex process conditioned by climatic factors, which influence the evolution of solutes and define its composition. The objective of the study was to evaluate the behavior of the red Tannat variety in contracting climatic situations, considering the dynamics of berry growth, the rate of accumulation and reduction of solutes during ripening, and their composition at harvest. The trial was installed in two regions, warm and temperate climate, in rainfed commercial vineyards, during 2018 and 2019. Primary berry composition at ripening and secondary composition at harvest were determined. Multivariate analysis and comparison of means (Fisher’s LSD test) were performed. The climatic type (region) conditions the evolution of solutes at ripening, but their interaction with annual conditions determines berry composition. The annual variability is explained by rainfall, with a direct influence on the duration of the cycle and the ripening, size, and composition of the berry. In warm climates, there is greater sensitivity to the ripening year effect, with a strong influence on the rapid phase. In temperate climates, the greater stability between years results from a thermal condition more favorable to ripening processes.

Resumen La maduración de la uva es un proceso complejo condicionado por factores climáticos, que influyen en la evolución de solutos y definen su composición. El objetivo del estudio fue evaluar el comportamiento de la variedad tinta Tannat en situaciones climáticas contrastantes, considerando la dinámica de crecimiento de la baya, la tasa de acumulación y reducción de solutos durante maduración y su composición en cosecha. El ensayo se instaló en dos regiones, clima cálido y templado-cálido, en viñedos comerciales de secano, durante 2018 y 2019. Se determinó la composición primaria de la baya en maduración, y secundaria en cosecha. Se realizó análisis multivariado y comparación de medias (test LSD de Fisher). El tipo climático (región) condiciona la evolución de solutos en maduración, pero su interacción con las condiciones anuales determina la composición de la baya. La variabilidad anual se explica por las precipitaciones, con directa influencia sobre la duración del ciclo y la maduración, tamaño y composición de la baya. En clima cálido, se registra mayor sensibilidad al efecto año en maduración, con fuerte incidencia en su fase rápida. En clima templado-cálido, la mayor estabilidad entre años resulta por una condición térmica e hídrica más favorable a los procesos de la maduración.

Resumo A maduração da uva é um processo complexo condicionado por fatores climáticos, que influem na evolução de solutos e definem su composição. O objetivo do estudo foi avaliar o comportamento da variedad tinta Tannat em situações climáticas contrastantes, considerando a dinâmica de crescimento da baga, a taxa de acumulação e redução de solutos durante maduração e sua composição na colheita. O ensaio instalou-se em duas regiões, clima cálido e temperado-cálido, em vinhedos comerciais de secano, durante 2018 e 2019. Determinou-se a composição primária da baga em maduração, e secundária em colheita. Realizou-se um análise multivariado e comparação de médias (test LSD de Fisher). O tipo climático (região) condiciona a evolução de solutos em maduração, mas sua interação com as condições anuais determina a composição da baga. A variabilidade anual explica-se pelas precipitações, com direta influência sobre a duração do ciclo e a maduração, tamanho e composição da baga. Em clima cálido, registra-se maior sensibilidade ao efeito ano em maduração, com forte incidência em sua fase rápida. Em clima temperado-cálido, a maior estabilidade entre anos resulta por uma condição térmica e hídrica mais favorável aos processos da maduração.