ABSTRACT Mapping resistant populations makes it possible to identify the evolution and dispersal of resistance cases, providing important information for control-related decision making. This study aimed to identify and map herbicide-resistant sourgrass (Digitaria insularis) populations in Brazilian regions. The results showed no glufosinate resistance, with 485 samples (96.6%) classified as putative resistant to glyphosate, while nine (1.8%) and five (1%) were considered putative resistant to haloxyfop and clethodim, respectively. Two samples were deemed putative resistant to three herbicides (glyphosate, haloxyfop, and clethodim). One of the samples characterized as a control failure for all three herbicides was used on the dose-response curve. This biotype was identified as glyphosate-resistant, with low-level resistance to clethodim and haloxyfop. Based on C50, resistance factors of 10.96, 3.26, and 3.15 were identified for glyphosate, clethodim, and haloxyfop, respectively. Mapping sourgrass resistance is vital to understand and ensure the early identification and quantification of the frequency of these plants. cases controlrelated related making herbicideresistant herbicide Digitaria insularis regions 48 96.6% 966 96 6 (96.6% glyphosate 1.8% 18 1 8 (1.8% 1% (1% respectively (glyphosate clethodim. . clethodim) doseresponse dose response curve glyphosateresistant, glyphosateresistant resistant, glyphosate-resistant lowlevel low level C50 C 1096 10 10.96 326 3 26 3.26 315 15 3.1 plants 4 96.6 9 (96.6 1.8 (1.8 (1 C5 109 10.9 32 2 3.2 31 3. 96. (96. 1. (1. ( 10. (96 (9

ABSTRACT Objective: To describe cases of acute kidney injury (AKI) in children diagnosed with COVID-19, associated risk factors, clinical aspects and outcome of cases. Methods: Retrospective study, carried out in a pediatric hospital between March 2020 and September 2021, with patients with COVID-19 who were diagnosed with AKI, studying information present in medical records such as comorbidities, age, gender and use of nephrotoxic medications. Results: We studied 40 cases, and male individuals were significantly more affected (62.5%; p=0.025). AKI was a severe complication of COVID-19 infection, with 100% of the sample requiring admission to the Intensive Care Unit and 22.5% dying. The most prevalent comorbidities analyzed in this study were epilepsy, cerebral palsy and heart disease. Most patients were classified according to Kidney Disease: Improving Global Outcomes (KDIGO) criteria as KDIGO 1 (42.5%), and required orotracheal intubation (67.5%). The frequency of use of nephrotoxic medications and need for dialysis was low, with percentages of 35 and 17.5%, respectively. Among the children who died, 70.4% had some comorbidity and 88.8% received invasive ventilation. Conclusions: AKI in children with COVID-19 infection is associated with severe conditions. Despite the severity, most patients were discharged alive from the hospital. Objective (AKI COVID19, COVID19 COVID 19, 19 factors Methods 202 2021 COVID-1 age Results 4 62.5% 625 62 5 (62.5% p=0.025. p0025 p p=0.025 . 0 025 p=0.025) 100 225 22 22.5 dying epilepsy disease Disease (KDIGO 42.5%, 425 42.5% , 42 (42.5%) 67.5%. 675 67.5% 67 (67.5%) low 3 175 17 17.5% respectively died 704 70 70.4 888 88 8 88.8 ventilation Conclusions conditions severity COVID1 20 COVID- 62.5 6 (62.5 p002 p=0.02 02 10 2 22. 42.5 (42.5% 67.5 (67.5% 17.5 7 70. 88. 62. (62. p00 p=0.0 42. (42.5 67. (67.5 17. (62 p0 p=0. (42. (67. (6 p=0 (42 (67 ( p= (4

RESUMO Objetivo: Descrever casos de lesão renal aguda (LRA) em crianças diagnosticadas com COVID-19, associando fatores de risco, aspectos clínicos e evolução dos casos. Métodos: Estudo retrospectivo, realizado em hospital pediátrico entre março de 2020 e setembro de 2021, com pacientes com COVID-19 diagnosticados com LRA, que examinou informações presentes em prontuários como comorbidades, idade, sexo e uso de medicações nefrotóxicas. Resultados: Foram estudados 40 casos, sendo o sexo masculino significativamente mais acometido (62,5%; p=0,025). A LRA foi uma complicação grave da infecção por COVID-19, com 100% da amostra necessitando de internação na Unidade de Terapia Intensiva e 22,5% indo a óbito. As comorbidades mais prevalentes analisadas neste estudo foram epilepsia, paralisia cerebral e cardiopatia. A maioria dos pacientes foi classificada pelos critérios Kidney Disease: Improving Global Outcomes (KDIGO) como KDIGO 1 (42,5%) e necessitou de intubação orotraqueal (67,5%). A frequência de uso de medicamentos nefrotóxicos e necessidade de diálise foi baixa, com percentuais de 35 e 17,5%, respectivamente. Entre as crianças que faleceram, 70,4% apresentavam alguma comorbidade e 88,8% receberam ventilação invasiva. Conclusões: A LRA em crianças com infecção por COVID-19 está associada a quadros graves, apesar de a maior parte dos pacientes ter recebido alta hospitalar. Objetivo (LRA COVID19, COVID19 COVID 19, 19 risco Métodos retrospectivo 202 2021 COVID-1 idade nefrotóxicas Resultados 4 62,5% 625 62 5 (62,5% p=0,025. p0025 p p=0,025 . 0 025 p=0,025) 100 225 22 22,5 óbito epilepsia cardiopatia Disease (KDIGO 42,5% 425 42 (42,5% 67,5%. 675 67,5% 67 (67,5%) baixa 3 175 17 17,5% respectivamente faleceram 704 70 70,4 888 88 8 88,8 invasiva Conclusões graves hospitalar COVID1 20 COVID- 62,5 6 (62,5 p002 p=0,02 02 10 2 22, 42,5 (42,5 67,5 (67,5% 17,5 7 70, 88, 62, (62, p00 p=0,0 42, (42, 67, (67,5 17, (62 p0 p=0, (42 (67, (6 p=0 (4 (67 ( p=

ABSTRACT Objective: To evaluate the predictive validity and cut-off point of heart rate and blood pressure on heart rate variability (HRV) changes in children with and without obesity. Methods: This study included 125 children, of whom 41 were normal weight and 84 were obese. Anthropometry, blood pressure, heart rate, and HRV were measured using an electronic scale and stadiometer, a sphygmomanometer, and HRV monitor. In addition, the receiver operating characteristic (ROC) curve was obtained by statistical analysis of the data. Results: Heart rate proved to be a good predictor for changes in the square root of the mean of the square of the differences between consecutive NN intervals (RMSSD) parameter in students of both sexes for the normal-weight group (ROC 0.89; 95%CI 0.77–1.00) and obesity (ROC 0.90; 95%CI 0.83–0.97). In addition, the heart rate cut-off point for alterations in the RMSSD parameter for normal-weight boys was 93 bpm (sensitivity 100.00% and specificity 87.50%) and for boys with obesity, the established cut-off point was 91 bpm (sensitivity 94.74% and specificity 63.64%). Heart rate also proved to be a good predictor considering low-frequency/high-frequency ratio (LF/HF) and standard deviation of long-term continuous NN intervals /standard deviation of the instantaneous variability of continuous NN intervals in the Poincaré graph ratio (SD2/SD1). Systolic and diastolic blood pressures were good predictors in more specific stratifications and, therefore, can be used in some cases. Conclusions: The predictive validity of heart rate was shown to be at a good level, with high sensitivity and acceptable specificity for the cut-off points according to the different analyses stratified by gender and nutritional status. In this sense, health professionals will be able to use heart rate to estimate cardiovascular risk in children of different sexes and nutritional status. Objective cutoff cut off (HRV Methods 12 4 8 obese Anthropometry stadiometer sphygmomanometer monitor addition ROC data Results (RMSSD normalweight 0.89 089 0 89 95CI CI 95 0.77–1.00 077100 77 1 00 0.90 090 90 0.83–0.97. 083097 0.83–0.97 . 83 97 0.83–0.97) 9 10000 100 100.00 87.50% 8750 87 50 9474 94 74 94.74 63.64%. 6364 63.64% 63 64 63.64%) lowfrequency/highfrequency lowfrequencyhighfrequency low frequency/high frequency LF/HF LFHF LF HF (LF/HF longterm long term SD2/SD1. SD2SD1 SDSD SD2/SD1 SD2 SD1 SD (SD2/SD1) therefore cases Conclusions level status sense 0.8 08 0.77–1.0 07710 7 0.9 09 08309 0.83–0.9 1000 10 100.0 87.50 875 5 947 94.7 636 63.64 6 lowfrequency highfrequency frequencyhigh SD2SD SD2/SD (SD2/SD1 0. 0.77–1. 0771 0830 0.83–0. 100. 87.5 94. 63.6 (SD2/SD 0.77–1 077 083 0.83–0 87. 63. 0.77– 07 0.83– 0.77 0.83 0.7

RESUMO Objetivo: Avaliar a validade preditiva e o ponto de corte da frequência cardíaca e da pressão arterial nas alterações da variabilidade da frequência cardíaca (VFC) em crianças com e sem obesidade. Métodos: Foram incluídas 125 crianças neste estudo, sendo 41 com peso normal e 84 com obesidade. Antropometria, pressão arterial, frequência cardíaca e VFC foram medidas por meio de balança eletrônica e estadiômetro, esfigmomanômetro e monitor de VFC. Além disso, a curva característica de operação do receptor (ROC) foi obtida pela análise estatística dos dados. Resultados: A frequência cardíaca mostrou-se um bom preditor de alterações no parâmetro de raiz quadrada da média do quadrado das diferenças entre os intervalos NN consecutivos (RMSSD) em escolares de ambos os sexos para o grupo de peso normal (ROC 0,89; IC95% 0,77–1,00) e obesidade (ROC 0,90; IC95% 0,83–0,97). Além disso, o ponto de corte da frequência cardíaca para alterações no parâmetro RMSSD para meninos com peso normal foi de 93 bpm (sensibilidade 100,00% e especificidade 87,50%), e para meninos com obesidade, o ponto de corte estabelecido foi de 91 bpm (sensibilidade 94,74% e especificidade 63,64%). A frequência cardíaca também se mostrou um bom preditor considerando os índices da relação baixa frequência/alta frequência (LF/HF) e razão desvio padrão de intervalos NN contínuos de longo prazo/desvio padrão da variabilidade instantânea de intervalos NN contínuos na relação gráfica de Poincaré (SD2/SD1). As pressões arteriais sistólicas e diastólicas foram bons preditores em estratificações mais específicas e, portanto, podem ser utilizadas em alguns casos. Conclusões: A validade preditiva da frequência cardíaca mostrou-se em bom nível, com alta sensibilidade e especificidade aceitável para os pontos de corte, conforme as diferentes análises estratificadas por sexo e estado nutricional. Desta forma, os profissionais de saúde poderão utilizar a frequência cardíaca para estimar o risco cardiovascular em crianças de diferentes sexos e estado nutricional. Objetivo (VFC Métodos 12 estudo 4 8 Antropometria estadiômetro disso ROC dados Resultados mostrouse (RMSSD 0,89 089 0 89 IC95 IC 0,77–1,00 077100 77 1 00 0,90 090 90 0,83–0,97. 083097 0,83–0,97 . 83 97 0,83–0,97) 9 10000 100 100,00 87,50%, 8750 87,50% , 87 50 87,50%) 9474 94 74 94,74 63,64%. 6364 63,64% 63 64 63,64%) frequênciaalta LF/HF LFHF LF HF (LF/HF prazodesvio prazo SD2/SD1. SD2SD1 SDSD SD2/SD1 SD2 SD1 SD (SD2/SD1) portanto casos Conclusões nível nutricional forma 0,8 08 IC9 0,77–1,0 07710 7 0,9 09 08309 0,83–0,9 1000 10 100,0 875 87,50 5 947 94,7 636 63,64 6 SD2SD SD2/SD (SD2/SD1 0, 0,77–1, 0771 0830 0,83–0, 100, 87,5 94, 63,6 (SD2/SD 0,77–1 077 083 0,83–0 87, 63, 0,77– 07 0,83– 0,77 0,83 0,7

ABSTRACT Introduction: the postgraduate educational climate (CE) in the hospital environment can determine the way in which resident physicians (MRs) adapt to their new stage, during which professional burnout syndrome (PAS) is highly likely to occur at some point. Objective: to determine the relationship between the educational climate and professional burnout in physicians in the medical residency programs of the National Hospital 2023-2024. Methodology: cross-sectional observational study of a sample of MR convenience of both sexes from all medical specialties of the National Hospital between November 2023 and January 2024, MR with external rotation and/or vacations were excluded. Sample calculation; 136 MR. An online form from Google was sent to the MR email requesting voluntary participation. The SAP was measured with the standard Maslach Burnout Inventory (MBI) method with subscales; emotional exhaustion (EA), depersonalization (DESP), personal fulfillment (PR), with PAS with high scores of AE, DESP and low RP. The EC was assessed with the measure of the hospital postgraduate educational environment (PHEEM) with subscales; perception of role autonomy (PAR), perception of teaching (PE), perception of social support (PSS), the higher the score, the better the EC. Demographic and academic variables, MBI and PHEEM scores were collected, and the SAP was considered dependent, as the main result was the predictive relationship of the PHEEM on the SAP. Data were compared with χ², t-test or Mann-Whitney U, ANOVA and linear regression (p-significant value =<0.05). Results: of 233 participants, the mean age was 28.75 (±2.20), 63.94 % (149) women, the general prevalence of PAS; 70.38 % (164/233), PAS in men 75 % (63/84) and women 67.78 % (101/149) p=0.0014, the first 2 years with the highest frequency of PAS; 65 (85.52 %), 59 (86.76 %) respectively p=0.0009, 63 (90 %) p=0.0071 surgical specialties. The subscales of the MBI, the AE; 79.82 % (186) with an average of 35.39 (± 11.61) points. The CE of MRs with SAP; 107.9 (19.6) dots and without PAS; 136.3 (12.1) dots 95 % CI 18.1-25.0 p= 0.0001. The PHEEM predicted the AE with R2=0.619, B= -0.18 (±0.009) p=0.001, and the DESP; R2= 0.385, B= -0.001(0.004) p=0.009, PSS being a significant predictor with inverse correlation in both. Conclusion: there is an inverse relationship between the educational climate and burnout syndrome in the population studied, with a high prevalence of burnout in male residents of surgical specialties, with the social support of the hospital educational environment being a significant predictor for the development of burnout syndrome.

RESUMEN Introducción: el clima educacional (CE) de posgrado en el ambiente hospitalario puede determinar la manera en como los médicos residentes (MR) se adaptan a su nueva etapa, durante el cual el sindrome agotamiento profesional (SAP) es altamente probable de producirse en algún momento. Objetivo: determinar la relación entre el clima educacional y el agotamiento profesional en médicos de los programas de residencias médicas del Hospital Nacional 2023-2024. Metodología: estudio observacional transversal de una muestra por conveniencia de MR de ambos sexos de todas las especialidades médicas del Hospital Nacional entre noviembre 2023 y enero 2024, se excluyeron MR con rotación externa y/o vacaciones. Calculo muestral; 136 MR. Se envío un formulario en línea de Google al correo electrónico del MR solicitando la participación voluntaria. El SAP fue medido con el método estándar Maslach Burnout Inventory (MBI) con subescalas; agotamiento emocional (AE), despersonalización (DESP), realización personal (RP), existiendo SAP con puntuaciones altas de AE, DESP y bajas de RP. El CE fue valorado con la medida del entorno educativo de posgrado hospitalario (PHEEM) con subescalas; percepción autonomía de roles (PAR), percepción enseñanza (PE), percepción soporte social (PSS), a mayor puntaje mejor CE. Se recopiló variables demográficos, académicos, puntajes del MBI y PHEEM, el SAP fue considerado dependiente, como resultado principal la relación predictiva del PHEEM sobre el SAP. Se compararon datos con χ², prueba t o U de Mann-Whitney, ANOVA y regresión lineal (p-valor significativo =<0,05). Resultados: de 233 participantes, la edad media fue de 28,75 (± 2,20), el 63,94 % (149) mujeres, la prevalencia general del SAP; 70,38 % (164/233), SAP en hombres 75 % (63/84) y mujeres 67,78 % (101/149) p=0,0014, los 2 primeros años con mayor frecuencia de SAP; 65 (85,52 %), 59 (86,76 %) repectivamente p=0,0009, de especialidades quirúrgicas 63 (90 %) p=0,0071. Las subescalas del MBI el AE;79,82 % (186) con un promedio de 35,39 (± 11,61) puntos. El PHEEM de los MR con SAP; 107,9(( 19,6) puntos y sin SAP; 136,3(( 12,1) puntos IC 95 % 18,1-25,0 p= 0,0001. El PHEEM predijo el AE con R2=0,619, PPS; B= -0,18 (±0,009) p=0,001, y la DESP; R2= 0,385, PPS; B= -0,001 (±0,004) p=0,009 siendo PSS predictor significativo con correlación inversa en ambas. Conclusión: existe relación inversa entre el clima educativo y el sindrome de agotamiento profesional en la población estudiada, con alta prevalencia de este en residentes hombres de especialidades quirúrgicas, siendo el soporte social del ambiente educativo hospitalario un predictor significativo para el desarrollo del sindrome de agotamiento profesional.

Resumen Objetivo: caracterizar sociodemográficamente pacientes que padecen trastornos del estado de ánimo en Institución Prestadora de Servicios (IPS) de salud mental en Montería, departamento de Córdoba - Colombia, correlacionando este diagnóstico con variables de interés. Materiales y métodos: estudio descriptivo, retrospectivo-longitudinal, que correlacionó variables sociodemográficas con trastornos del estado de ánimo en 729 pacientes hospitalizados en una IPS, procedentes de municipios del departamento de Córdoba, en el período 2012- 2021-I. Resultados: hombres con edad promedio de 23 años presentaron mayor frecuencia de trastornos del estado de ánimo n=689 que mujeres n= 40; en su mayoría procedentes de municipios como Montería, Puerto Libertador, Valencia, Tierralta y Canalete; siendo Montería el municipio con mayor población y menor prevalencia; factores como lugar de procedencia, falta de apoyo familiar y estrés fueron quienes incidieron en recaídas, registrándose disminución en hospitalización de estos pacientes durante la pandemia COVID-19. Conclusión: existe correlación entre variables sociodemográficas como lugar de procedencia del departamento de Córdoba, falta de apoyo familiar y estrés como determinantes para la ocurrencia del diagnóstico de trastornos del estado de ánimo, en pacientes que proceden de municipios caracterizados por niveles de violencia alto y medio, baja cobertura educativa y pobreza multifuncional en población vulnerable.

ABSTRACT Objective : To sociodemographically characterize patients with Mood Disorders in a Mental Health Institution in Montería, Córdoba - Colombia, and correlate this diagnosis with variables of interest. Materials and Methods: This descriptive, retrospective-longitudinal study correlated sociodemographic variables with Mood Disorders in 729 hospitalized patients in an Institution of Mental Health, originating from municipalities in the department of Córdoba, during the period 2012-2021. Results: Men with an average age of 23 years presented a higher frequency of Mood Disorders (n=689) compared to women (n=40). The majority of patients originated from municipalities such as Montería, Puerto Libertador, Valencia, Tierralta, and Canalete. Montería, being the municipality with the largest population, showed a lower prevalence. Factors such as place of origin, lack of family support, and stress influenced relapses, with a decrease in hospitalizations of these patients during the COVID-19 pandemic. Conclusion: There is a correlation between sociodemographic variables such as the place of origin in the department of Córdoba, lack of family support, and stress as determinants for the occurrence of Mood Disorders diagnosis in patients from municipalities characterized by high and medium levels of violence, low educational coverage, and multifunctional poverty in vulnerable populations.

Abstract: The aim of this work is to put forward a methodology to evaluate the oscillatory stability of a power electric system (PES) analyzing the low-frequency oscillatory modes (LFOM) through the processing of synchrophasor measurements Phasor Measurement Units (PMU) of ambient data. The proposed methodology, based on spectral and pseudo-energy analyses and on parametric methods of Canonical Correlation Analysis and Yule-Walker, estimates the LFOM, whose frequency and damping characteristics provide critical information to PES operators to carry out preventive or emergency control actions. The proposed methodology was applied to synthetic measurements for its tuning and to characterize its range and accuracy, and to PMU records of the Ecuadorian power transmission system, successfully identifying the 0.4 Hz inter-area mode of the Ecuador-Colombia interconnection. The contributions of this work are aimed at evaluating the oscillatory stability of the PES through automatic computational tool that processes PMU signals of ambient type data.

Resumen: El objetivo de este trabajo es presentar una metodología para evaluar la estabilidad oscilatoria de un sistema eléctrico de potencia (SEP) mediante el análisis de los modos oscilatorios de baja frecuencia (MOBF) a través del procesamiento de mediciones sincrofasoriales (Phasor Measurement Units PMU) de datos tipo ambiente. La metodología propuesta, basada en los análisis espectral y de pseudoenergía y en los métodos paramétricos de Análisis de Correlación Canónica y de Yule - Walker, estima los MOBF, cuyas características de frecuencia y amortiguamiento brindan información crítica a los operadores del SEP para adoptar acciones de control preventivo o de emergencia. La metodología propuesta fue aplicada a mediciones sintéticas para su sintonización y caracterizar su alcance y precisión, y a registros PMU del sistema de transmisión de energía de Ecuador logrando identificar satisfactoriamente el modo interárea de 0,4 Hz propio de la interconexión Ecuador-Colombia. Las contribuciones de este trabajo están encaminadas a evaluar la estabilidad oscilatoria de los SEP a través de una herramienta computacional automática que procese señales PMU de datos tipo ambiente.

Abstract Background: Ethnobotanical work makes it possible to recognize and take advantage of plants that are potentially important to communities. In the Central region of Guerrero, Mexican plum is a highly appreciated fruit tree due to its versatility as a crop and its commercial potential; However, economic ethnobotanical studies on this species are scarce in the state. Questions: Which morphotype of Mexican plums exist in the study area and which are the most important for its inhabitants? What are the uses and agronomic management of Mexican plum? What are the cultivation and economics characteristics of Mexican plum in the region? Studied species / data description /Mathematical model: Spondias purpurea L. Study site and dates: 3 localities of Juan R. Escudero, Guerrero, México; 2022 and 2023. Methods: Information was collected through 40 semi-structured interviews. The analysis of the information was carried out using descriptive statistics and ethnobotanical indices. Results: Nine morphotypes of Mexican plums were registered, two of them ('Roja Dulce' and 'Roja Grande'), stood out for being the most preferred, the most cultivated and commercialized. The Mexican plum is cultivated preferentially in relation to other fruit crops due to its low water needs, the low economic investment and the short time required to produce fruits. Conclusions: The main use of the Mexican plum is as a foodstuff, there is a very marked preference for two of the nine morphotypes that are grown in the region, their commercialization allows producers to obtain important economic income.

Resumen Antecedentes: Los trabajos etnobotánicos permiten reconocer y aprovechar plantas potencialmente importantes para las comunidades. En la región Centro de Guerrero, la ciruela mexicana es un frutal apreciado debido a su versatilidad como cultivo y a su potencial comercial. Sin embargo, los estudios de etnobotánica económica sobre esta especie son escasos en la entidad. Preguntas: ¿Cuáles morfotipos de ciruela mexicana existen en la zona de estudio y cuáles son los más importantes para sus habitantes? ¿Cuáles son los usos y el manejo agronómico que se da a la ciruela mexicana? ¿Cuáles son las características del cultivo y económicas de la ciruela mexicana en la región? Especies de estudio: Spondias purpurea L. Sitio y años de estudio: Tres localidades del municipio de Juan R. Escudero, Guerrero, México; 2022 y 2023. Métodos: La información se recabó mediante 40 entrevistas semiestructuradas. El análisis de la información se realizó utilizando estadística descriptiva e índices etnobotánicos. Resultados: Se registraron nueve morfotipos de ciruela mexicana, dos de ellos (‘Roja Dulce’ y ‘Roja Grande’), destacaron por ser los de mayor preferencia, más cultivados y comercializados. La ciruela mexicana se cultiva preferentemente con relación a otros frutales debido a sus bajas necesidades hídricas, a la poca inversión económica y al corto tiempo que requiere para producir frutos. Conclusiones: El uso principal de la ciruela mexicana es el alimenticio, existe una preferencia muy marcada por dos de los nueve morfotipos que se cultivan en la región, su comercialización permite a los productores obtener importantes ingresos económicos.

RESUMO Atualmente, é de grande importância orientar estudos sobre tratamentos pré-germinativos para acelerar o processo de germinação de sementes florestais. A espécie Vismia baciifera é muito importante em programas de reflorestamento, porém apresenta baixa capacidade germinativa. O objetivo deste trabalho foi avaliar o efeito do tratamento pré-germinativo com ultrassom na germinação de sementes da espécie V. baccifera. Foi realizado um planejamento composto central com a metodologia de superfície de resposta, utilizando o software Design Expert versão 12.0. Para a condição experimental foram utilizadas 30 sementes com três repetições, com uso de ultrassom com frequência de 40 KHz. As variáveis consideradas foram: tempo de banho ultrassônico (1-10 min), temperatura da água do banho (30-60 ºC) e porcentagem de germinação. Os resultados demonstraram que o tratamento pré-germinativo com ultrassom exerceu efeito positivo na germinação de sementes de V. baccifera, com aumento na germinação de 7,7 % para 67,8 % nas condições experimentais de 60 ºC e 5,9 min. Isso indica a utilização do ultrassom como tratamento pré-germinativo para aumentar a germinação de V. baccifera, o que proporciona novas alternativas de incursão para espécies florestais com baixo potencial germinativo.

ABSTRACT Currently, guiding studies on pregerminative treatments to accelerate the germination process of forest seeds is of great importance. The species Vismia baciifera is very important in reforestation programs, however, it has low germination capacity. The objective of this work was to evaluate the effect of pregerminative treatment with ultrasound on the germination of seeds of the species V. baccifera. A central composite design was carried out with the response surface methodology, using Design Expert version 12.0 software. 30 seeds with three replicates were used for the experimental condition, with the use of ultrasound with a frequency of 40 KHz. The variables considered were: ultrasonic bath time (1-10 min), water temperature in the bath (30-60 ºC) and germination percentage. The results demonstrated that the pregerminative treatment with ultrasound exerted a positive effect on the germination of V. baccifera seeds, with an increase in germination from 7.7 % to 67.8 % under the experimental conditions of 60 ºC and 5.9 min. This indicates the use of ultrasound as a pregerminative treatment to increase the germination of V. baccifera, which provides new incursion alternatives for forest species with low germination potential.

RESUMEN En la actualidad orientar estudios sobre tratamientos pregerminativos para acelerar el proceso de germinación de semillas forestales es de gran importancia. La especie Vismia baciifera es muy importante en los programas de reforestación, sin embargo, posee baja capacidad germinativa. El objetivo de este trabajo fue evaluar el efecto del tratamiento pregerminativo con ultrasonido sobre la germinación de semillas de la especie V. baccifera. Se realizó un diseño central compuesto con la metodología de superficie respuesta, mediante el software Design Expert versión 12.0. Se utilizaron 30 semillas con tres réplicas para condición experimental, con el uso de ultrasonido de frecuencia 40 KHz. Las variables consideradas fueron: tiempo del baño ultrasónico (1-10 min), temperatura del agua en el baño (30-60 ºC) y porcentaje de germinación. Los resultados demostraron que el tratamiento pregerminativo con ultrasonido ejerció un efecto positivo en la germinación de semillas de V. baccifera, con un incremento en la germinación de 7.7 % a 67.8 % bajo las condiciones experimentales de 60 ºC y 5.9 min. Esto indica el uso del ultrasonido como tratamiento pregerminativo para el incremento de la germinación de V. baccifera, lo que brinda nuevas alternativas de incursión para especies forestales con bajo potencial germinativo.

Abstract Introduction: Semaprochilodus laticeps is a freshwater fish species native to the Orinoco Basin that is exploited in Colombia at two different stages of its life cycle: fry (for the ornamental trade) and adults (for the consumer market). This double exploitation of juveniles and adults raises concerns about the population stability of the species. Objective: To evaluate the sustainability of the exploitation of the species in these two life stages. Methods: 1 277 specimens of S. laticeps were sampled between June and December 2017. Population parameters were estimated from length-frequency data using ELEFAN 1 routine of the FISAT II package. Length at first maturity (Lm) and length at maximum yield (Lopt) were determined using the Froese and Binohlan equations. Virtual population analysis was performed based on Jones length cohort analysis. Results: Population parameters were as follows: K = 0.75, L∞ = 53.1 cm LE, Z = 2.92 yr-1, M = 1.24 yr-1 and F = 1.68. Lm was estimated to be 29.6 cm SL and Lopt at 33.4 cm SL. Of note, 96.3 % of the fish caught in the consumer fishery exceeded Lm and 80 % exceeded Lopt. The results of the virtual population analysis suggested that a very low proportion (0.85 %) of the population was caught as fry, possibly due to natural mortality. Conclusions: Based on the results, as no indicators of overexploitation were identified, it is recommended to continue with the dual use of S. laticeps. It is recommended to maintain the existing conservation measures, such as the closed season during the reproductive period, to ensure sustainable fishery exploitation. The results obtained can serve as a reference to analyze the situation of other species currently fished for both the ornamental (fry) and food (adult) markets.

Resumen Introducción: Semaprochilodus laticeps es una especie de pez de agua dulce originaria de la cuenca del Orinoco, explotada en Colombia en dos etapas distintas de su ciclo de vida: alevín (para el comercio ornamental) y adulto (para el mercado de consumo). Esta doble explotación de alevines y adultos genera preocupación sobre la estabilidad poblacional de la especie. Objetivo: Evaluar la sostenibilidad de la explotación de la especie en estas dos etapas de vida. Método: Entre junio y diciembre de 2017 se muestrearon 1 277 ejemplares de S. laticeps. Los parámetros poblacionales se estimaron utilizando datos de frecuencia de tallas con la rutina ELEFAN 1 del paquete FISAT II. La longitud de primera madurez (Lm) y la de máximo rendimiento (Lopt) se determinaron mediante ecuaciones de Froese y Binohlan. El análisis de la población virtual se realizó basándose en el análisis de cohorte de longitud de Jones. Resultados: Los parámetros poblacionales fueron los siguientes: K = 0.75, L∞ = 53.1 cm LE, Z = 2.92 año-1, M = 1.24 año-1 y F = 1.68. Lm se estimó en 29.6 cm SL y Lopt en 33.4 cm SL. En particular, el 96.3 % del pescado capturado en la pesquería de consumo superó Lm y el 80 % superó Lopt. El análisis de la población virtual sugirió que una fracción muy baja (0.85 %) de la población fue capturada como alevines, posiblemente atribuible a la mortalidad natural. Conclusiones: Con base en los hallazgos, al no identificarse indicadores de sobreexplotación, se recomienda continuar con el doble uso de S. laticeps. Se recomienda mantener las medidas de protección existentes, así como una veda durante el período reproductivo, para garantizar una explotación pesquera sostenible. Los resultados obtenidos pueden servir como referencia para analizar la situación de otras especies actualmente capturadas para el mercado tanto ornamental como de consumo.

SUMMARY OBJECTIVE: Coronary artery disease is the leading cause of death worldwide. Vascular endothelial growth factor is known to induce endothelial cell migration and proliferation, increase vascular permeability, and modulate thrombogenicity. The aim of this study is to investigate the relationship between the VEGF insertion/deletion (I/D) variant (rs35569394) and coronary artery disease susceptibility in the Turkish population. METHODS: A total of 206 subjects, including 106 coronary artery disease patients and 100 controls, were included in this study. The VEGF I/D variant was genotyped using the polymerase chain reaction method. RESULTS: The frequency of the I/I, I/D, and D/D genotypes was 35.84 versus 37%, 33.97 versus 36%, and 30.19 versus 27% in patients and the control group, respectively. VEGF I/D genotype and allele distribution were not statistically significant between coronary artery disease patients and controls (p>0.05). There was no significant difference between VEGF I/D genotype distribution and patient characteristics including age, gender, disease duration, high-density lipoprotein cholesterol, low-density lipoprotein cholesterol, triglyceride, history of hypertension, history of diabetes mellitus, and smoking (p>0.05). CONCLUSION: This study suggests that the VEGF I/D variant is not a predisposing factor to coronary artery disease disease in a Turkish sample. OBJECTIVE worldwide proliferation permeability thrombogenicity insertiondeletion insertion deletion ID I D (I/D rs35569394 rs (rs35569394 population METHODS 20 subjects 10 method RESULTS II I/I DD 3584 35 84 35.8 37 37% 3397 33 97 33.9 36 36% 3019 30 19 30.1 27 group respectively p>0.05. p005 p p>0.05 . 0 05 (p>0.05) age gender duration highdensity high density cholesterol lowdensity low triglyceride hypertension mellitus CONCLUSION sample rs3556939 (rs3556939 2 1 358 3 8 35. 339 9 33. 301 30. p00 p>0.0 (p>0.05 rs355693 (rs355693 p0 p>0. (p>0.0 rs35569 (rs35569 p>0 (p>0. rs3556 (rs3556 p> (p>0 rs355 (rs355 (p> rs35 (rs35 (p rs3 (rs3 (rs

SUMMARY OBJECTIVE: The aim of this study was to demonstrate the effect of coronavirus disease 2019 on the cardiovascular autonomic system using heart rate variability in young individuals. METHODS: The study was designed retrospectively by scanning the 24-h Holter electrocardiography records of patients who applied to the Ankara Abdurrahman Yurtaslan Oncology Education and Research Hospital Cardiology outpatient clinic. The study group consisted of 492 patients under the age of 40 years, who did not have additional comorbidities or medication use and had prolonged symptoms after coronavirus disease 2019 during the pandemic. The control group, including 401 patients, was determined during the pre-pandemic period (before December 2019). Heart rate variability parameters were evaluated by scanning the 24-h Holter electrocardiography records of the patients and compared with the non-coronavirus disease 2019 group. RESULTS: The median age of participants was 30 years. Standard deviation of normal RR intervals (SDNN) ≤100 ms was more prevalent in the study group (27 (6.7%) vs 73 (14.8%), p<0.001). In univariate logistic regression analysis, the presence of coronavirus disease 2019 [(OR 2.41, 95%CI 1.52–3.83), p<0.001] and age [(OR 1.04, 95%CI 1.01–1.07), p=0.016] had a significant effect on the probability of SDNN≤100. In multivariate logistic regression analysis, the presence of coronavirus disease 2019 [(OR 2.42, 95%CI 1.52–3.85), p<0.001] and age [(OR 2.42, 95%CI 1.52–3.85), p=0.016] had a significant effect on the probability of SDNN≤100. Frequency domain measures such as, high-frequency values were significantly higher in the study group (p=0.029). The study group’s low-frequency/high frequency ratio was significantly lower (p=0.019). The low-frequency/high-frequency ratio’s cut-off value was ≤2.77. for determining the differentiation between coronavirus disease 2019 positive and negative cases in the receiver operating characteristic analysis. The sensitivity rate was 80.7%. The area under the curve value is 0.546 (p=0.019). CONCLUSION: This study showed that coronavirus disease 2019 causes reduced heart rate variability and increased parasympathetic activity in young patients. This may explain the prolonged symptoms after coronavirus disease 2019 infection. OBJECTIVE 201 individuals METHODS 24h h 24 clinic 49 4 years pandemic prepandemic pre before 2019. . 2019) noncoronavirus non RESULTS 3 SDNN (SDNN 100 ≤10 27 (2 6.7% 67 6 7 (6.7% 14.8%, 148 14.8% , 14 8 (14.8%) p<0.001. p0001 p p<0.001 0 001 p<0.001) analysis OR 241 2 41 2.41 95CI CI 95 1.52–3.83, 152383 1.52–3.83 1 52 83 1.52–3.83) 104 04 1.04 1.01–1.07, 101107 1.01–1.07 01 07 1.01–1.07) p=0.016 p0016 016 SDNN100 SDNN≤100 242 42 2.42 1.52–3.85, 152385 1.52–3.85 85 1.52–3.85) as highfrequency high p=0.029. p0029 p=0.029 029 (p=0.029) groups s lowfrequency/high lowfrequencyhigh low frequency/high p=0.019. p0019 p=0.019 019 (p=0.019) lowfrequency/highfrequency lowfrequencyhighfrequency ratios cutoff cut off 277 77 ≤2.77 807 80 80.7% 0546 546 0.54 CONCLUSION infection 20 10 ≤1 ( 6.7 (6.7 14.8 (14.8% p000 p<0.00 00 2.4 9 15238 1.52–3.8 5 1.0 10110 1.01–1.0 p=0.01 p001 SDNN10 SDNN≤10 p002 p=0.02 02 (p=0.029 lowfrequency frequencyhigh (p=0.019 ≤2.7 80.7 054 54 0.5 ≤ 6. (6. 14. (14.8 p00 p<0.0 2. 1523 1.52–3. 1. 1011 1.01–1. p=0.0 SDNN1 SDNN≤1 (p=0.02 (p=0.01 ≤2. 80. 05 0. (6 (14. p0 p<0. 152 1.52–3 101 1.01–1 p=0. SDNN≤ (p=0.0 ≤2 (14 p<0 15 1.52– 1.01– p=0 (p=0. (1 p< 1.52 1.01 p= (p=0 1.5 (p= (p

A low-level river crossing is an economic means of providing access for lower-order roads during high-frequency flood events. Conventionally, culverts are employed to enable the flow to traverse the road, albeit with allowance for overtopping. This overtopping flow from the approach roads, however, possesses the potential to cause erosion of the downstream embankment, thereby jeopardising the foundational integrity of the structure. A physical modelling study was undertaken to investigate the hydraulic performance of stepped chutes in terms of flow patterns, air-water flow properties, and energy dissipation. Various types of stepped chutes were investigated, namely horizontal steps with a chute wall, horizontal steps without a chute wall but with riprap placed directly downstream of each chute, step-inclined steps (backward sloping), steps with pooled cascades, and steps with baffle blocks. Notably, chutes with horizontal steps were the most efficient configuration in terms of relative energy dissipation. Furthermore, this research culminated in the formulation of a new regression formula to establish a quantifiable relationship between the required step length and the overflow depth and discharge, thereby offering a valuable tool for design purposes.

Abstract Introduction The limited access to temporal fine structure (TFS) cues is a reason for reduced speech-in-noise recognition in cochlear implant (CI) users. The CI signal processing schemes like electroacoustic stimulation (EAS) and fine structure processing (FSP) encode TFS in the low frequency whereas theoretical strategies such as frequency amplitude modulation encoder (FAME) encode TFS in all the bands. Objective The present study compared the effect of simulated CI signal processing schemes that either encode no TFS, TFS information in all bands, or TFS only in low-frequency bands on concurrent vowel identification (CVI) and Zebra speech perception (ZSP). Methods Temporal fine structure information was systematically manipulated using a 30-band sine-wave (SV) vocoder. The TFS was either absent (SV) or presented in all the bands as frequency modulations simulating the FAME algorithm or only in bands below 525 Hz to simulate EAS. Concurrent vowel identification and ZSP were measured under each condition in 15 adults with normal hearing. Results The CVI scores did not differ between the 3 schemes (F (2, 28) = 0.62, p = 0.55, η2p = 0.04). The effect of encoding TFS was observed for ZSP (F (2, 28) = 5.73, p = 0.008, η2p = 0.29). Perception of Zebra speech was significantly better with EAS and FAME than with SV. There was no significant difference in ZSP scores obtained with EAS and FAME (p = 1.00) Conclusion For ZSP, the TFS cues from FAME and EAS resulted in equivalent improvements in performance compared to the SV scheme. The presence or absence of TFS did not affect the CVI scores. (TFS speechinnoise noise (CI users (EAS FSP (FSP (FAME lowfrequency (CVI ZSP. . (ZSP) 30band band 30 sinewave sine wave (SV vocoder 52 1 hearing F 2, 2 (2 28 062 0 62 0.62 055 55 0.55 ηp η 0.04. 004 0.04 04 0.04) 573 5 73 5.73 0008 008 0.008 0.29. 029 0.29 29 0.29) 1.00 100 00 scheme (ZSP ( 06 6 0.6 05 0.5 0.0 57 7 5.7 000 0.00 02 0.2 1.0 10 0. 5. 1.

Abstract Current evidence suggests an inverse or neutral association between dairy consumption and obesity, type 2 diabetes (T2D), and hypertension (HT) prevalence. However, there are no studies investigating this relationship in the adult Chilean population. Therefore, we aimed to determine the association between dairy product consumption and the prevalence of these diseases in Chilean adults. This cross-sectional study includes data from the latest Chilean National Health Survey (2016-2017), a nationally representative sample of the Chilean population. The outcomes were the prevalence of obesity, T2D, and HT. Dairy consumption was assessed by frequency (categorized as “low”, “medium,” and “high”, according to frequency of consumption), and types of dairy products consumed (i.e., “skimmed” and “whole-fat”) all of which were self-reported. Adjusted Poisson regression models were performed to determine the prevalence ratio (PR) and 95% confidence intervals (CI). There was no association between the frequency of dairy consumption and the prevalence of obesity, T2D or HT. The preference for whole-fat dairy products was associated with a 47% lower prevalence of T2D in women (PR: 0.53; 95% CI: 0.35-0.80), 29% lower prevalence of abdominal obesity in men (PR: 0.71; 95% CI: 0.52-0.97), and 27% lower prevalence of HT in men (PR: 0.73; 95% CI: 0.57-0.92), after adjusting for potential covariates. Our study suggests that the frequency of dairy consumption is not associated with the prevalence of obesity, T2D, or HT in Chilean adults.

Resumen La evidencia actual sugiere una asociación inversa o neutra entre el consumo de lácteos y la prevalencia de obesidad, diabetes tipo 2 (T2D) e hipertensión (HT). Sin embargo, no existen estudios que investiguen esta relación en la población adulta chilena. Por lo tanto, nuestro objetivo fue determinar la asociación entre el consumo de productos lácteos y la prevalencia de estas enfermedades en adultos chilenos. Este estudio transversal incluye datos de la última Encuesta Nacional de Salud de Chile (2016-2017), una muestra representativa a nivel nacional de la población chilena. Los resultados fueron la prevalencia de obesidad, T2D y HT. El consumo de lácteos se midió según la frecuencia (categorías de “bajo”, “medio” y “alto” basadas en la frecuencia de consumo) y los tipos de productos lácteos consumidos (es decir, “descremados” y “enteros”) fueron autoinformados. Se realizaron modelos de regresión de Poisson ajustados para determinar la razón de prevalencia (RP) y los intervalos de confianza del 95% (IC). No se encontró ninguna asociación entre la frecuencia de consumo de lácteos y la prevalencia de obesidad, T2D o HT. La preferencia por productos lácteos enteros se asoció con una prevalencia un 47% menor de T2D en mujeres (RP: 0,53; IC 95%: 0,35-0,80), un 29% menor de obesidad abdominal en hombres (RP: 0,71; IC 95%: 0,52-0,97) y un 27% menor de HT en hombres (RP: 0,73; IC 95%: 0,57-0,92), después de ajustar por posibles covariables. Nuestro estudio sugiere que la frecuencia de consumo de lácteos no está asociada con la prevalencia de obesidad, T2D o HT en adultos chilenos.

Abstract Motivation to learn addresses the potential to develop school behaviours that ensure high academic achievement and avoid dropout; its functionality involves the interaction between behaviour and the positive or negative consequences of this behaviour. The high frequency of situations with outcomes associated with punishment generatesrepresentations of low motivation, mood problems-depression and a tendency to develop externalising behaviours of bullying or impulsive behaviours, such as the risk of consuming psychoactive substances. The study seeks to describe each of the categories and define possible associations that affect the motivation to learn. The methodology used was quantitative, with a cross-sectional descriptive model and association analysis. The sample consisted of 200 adolescent students from three official institutions, who were assessed by way of the Motivational Evaluation for the Learning Process (EMPA) questionnaire; the Childhood Depression Inventory (CDI); the Bullying Exploration Questionnaire (CEBU); and the Alcohol, Tobacco and Substance Use Screening Test (ASSIST). The results identified 49 % of students with low motivation, 31 % with depression and 21.5 % with intimidation. For 40 % of the participants, their motivation is affected by mood and school bullying, but there was no association with the risk of drug use, although alcohol use was identified in 56.5 % of the cases, tobacco use in 6 % and cannabis use in 14 %.

Resumo A motivação para aprender aborda o potencial de desenvolver comportamentos escolares que garantem um alto desempenho acadêmico e evitam a evasão escolar; sua funcionalidade envolve a interação entre o comportamento e as consequências positivas ou negativas desse comportamento. A alta frequência de situações com resultados associados à punição gera representações de baixa motivação, problemas de humor ou depressão e uma tendência a desenvolver comportamentos externalizantes de bullying ou comportamentos impulsivos, como o risco de consumir substâncias psicoativas. Este estudo busca descrever cada uma das categorias e definir possíveis associações que afetam a motivação para aprender. A metodologia utilizada foi quantitativa, com um modelo descritivo transversal e análise de associação. A amostra consistiu em 200 alunos adolescentes de três instituições oficiais, que foram avaliados com o questionário de Avaliação Motivacional para o Processo de Aprendizagem, com o Inventário de Depressão Infantil, com o Questionário de Exploração de Bullying e com o Teste de Detecção de Cosumo de Álcool, Tabaco e Substâncias. Os resultados identificaram 49 % dos alunos com baixa motivação, 31 % com depressão e 21,5 % com bullying. Para 40 % dos participantes, sua motivação é afetada pelo humor e pelo bullying escolar, mas não houve associação com o risco de uso de drogas, embora o consumo de álcool tenha sido identificado em 56,5 % dos casos, o uso de tabaco em 6 % e o uso de maconha em 14 %.

Resumen La motivación para aprender aborda la potencialidad para desarrollar conductas escolares que garanticen el alto rendimiento académico y eviten la deserción; su funcionalidad implica la interacción entre la conducta y las consecuencias positivas o negativas de esta. La alta frecuencia de situaciones con resultados asociados al castigo genera representaciones de baja motivación, problemas de estado de ánimo- depresión y tendencia a desarrollar conductas externalizantes de intimidación o conductas impulsivas, como el riesgo de consumir sustancias psicoactivas. El estudio busca describir cada una de las categorías y definir posibles asociaciones que afectan a la motivación para aprender. La metodología utilizada fue cuantitativa, con un modelo descriptivo transversal y análisis de asociación. La muestra la conformaron 200 adolescentes estudiantes de tres instituciones oficiales, quienes fueron evaluados con el cuestionario de Evaluación Motivacional para el Proceso de Aprendizaje (EMPA); el Inventario de Depresión Infantil (CDI); el Cuestionario de Exploración de Bullying (CEBU); y la Prueba de Detección de Consumo de Alcohol, Tabaco y Sustancias (ASSIST, por su sigla en inglés). Los resultados permitieron identificar un 49 % de los estudiantes con motivación baja, un 31 % con depresión y un 21.5 % con intimidación. Para el 40 % de los participantes, su motivación está afectada por el estado de ánimo y la intimidación escolar, pero no hubo asociación con el riesgo de consumir drogas, a pesar de identificarse consumo de alcohol en el 56.5 % de los casos, de tabaco en el 6 % y de cannabis en el 14 %.