RESUMEN
Un clima escolar (CE) percibido negativamente facilita la ocurrencia y el sostenimiento de las situaciones de intimidación escolar (IE). No hay evidencia sobre cómo varía la percepción del mismo según la participación del alumno en dichas situaciones en el ámbito escolar a lo largo de un ciclo lectivo. El objetivo fue comparar la variación de la percepción del CE en los alumnos según el dinamismo de su participación en situaciones de intimidación. Fue un estudio descriptivo realizado en 2015 en niños/as de 8-12 años de edad de escuelas primarias de Bahía Blanca. Se utilizaron los cuestionarios PRECONCIMEI (versión niños) y ECLIS. Variables estudiadas: tipo de participación en IE, participación en IE, dinamismo de la participación en IE, percepción del CE. Se realizó test de ANOVA, prueba de Kruskal-Wallis y de la mediana. La media de las diferencias para la percepción del CE global entre los participantes fue de -3.91 (IC 95% -8,02; 0,21). La diferencia de clima global no difirió significativamente entre categorías de dinamismo (P=0,38). Se observó un empeoramiento del CE en las categorías de dinamismo de participación en IE respecto a la de los niños no participantes, quienes no experimentaron cambios en su percepción del CE a lo largo del ciclo lectivo. No se detectaron diferencias estadísticamente significativas en el análisis global y por dimensiones de la variación de CE entre ambas tomas.
A negatively perceived school climate (CE) facilitates the occurrence and maintenance of situations of school bullying (IE). There is no evidence on how the perception of it varies according to the participation of the student in said situations in the school environment throughout a school year. The objective was to compare the variation of the perception of the CE in the students according to the dynamism of their participation in bullying situations. It was a descriptive study carried out in 2015 in children aged 8-12 from primary schools in Bahía Blanca. The PRECONCIMEI (children's version) and ECLIS questionnaires were used. Variables studied: type of participation in EI, participation in EI, dynamism of participation in EI, perception of CE. ANOVA test and Kruskal-Wallis test were performed. The mean of the differences for the perception of the global CE between the participants was -3.91 (95% CI -8.02; 0.21). The global climate difference did not differ significantly between dynamism categories (P=0.38). A worsening of the CE was observed in the categories of dynamism of participation in IE with respect to that of the non-participating children, who did not experience changes in their perception of the CE throughout the school year. No statistically significant differences were detected in the overall analysis and by dimensions of the CE variation between the two intakes.
Asunto(s)
Escolaridad , Percepción , Instituciones Académicas , NiñoRESUMEN
Endosymbiont bacteria can affect biological parameters and reduce the effectiveness of natural enemies in controlling the target insect. The objective of this work was to identify endosymbiont bacteria in Anaphes nitens (Girault, 1928) (Hymenoptera: Mymaridae), the main natural enemy used to manage Gonipterus platensis (Marelli, 1926) (Coleoptera: Curculionidae). Genomic DNA from six A. nitens populations was extracted and polymerase chain reactions (PCR) were performed with the primers to detect endosymbiont bacteria in this insect. The PCR products were amplified, sequenced, and compared with sequences deposited in the GenBank for the bacteria identification. All A. nitens populations had the bacterium Yersinia massiliensis (Enterobacteriales: Enterobacteriaceae). This bacterium was originally described as free-living, and it is associated with and composes part of the A. nitens microbiota. This is the first report of Y. massiliensis in an insect host.
As bactérias endossimbiontes podem afetar os parâmetros biológicos e reduzirem a eficácia de inimigos naturais no controle do inseto alvo. O objetivo deste trabalho foi identificar bactérias endossimbiontes em Anaphes nitens (Girault, 1928) (Hymenoptera: Mymaridae), o principal inimigo natural usado no manejo de Gonipterus platensis (Marelli, 1926) (Coleoptera: Curculionidae). O DNA genômico de seis populações de A. nitens foi extraído e as reações em cadeia da polimerase (PCR) realizadas com os primers para detectar bactérias endossimbiontes neste inseto. Os produtos de PCR foram amplificados, sequenciados e comparados com as sequências depositadas no GenBank para identificação das bactérias. Todas as populações de A. nitens tinham a bactéria Yersinia massiliensis (Enterobacteriales: Enterobacteriaceae). Esta bactéria foi originalmente descrita como de vida livre e está associada e compõe parte da microbiota de A. nitens. Este é o primeiro relato de Y. massiliensis em um hospedeiro.
Asunto(s)
Animales , Gorgojos , Himenópteros/genética , Yersinia/genética , Enterobacteriaceae/genéticaRESUMEN
Endosymbiont bacteria can affect biological parameters and reduce the effectiveness of natural enemies in controlling the target insect. The objective of this work was to identify endosymbiont bacteria in Anaphes nitens (Girault, 1928) (Hymenoptera: Mymaridae), the main natural enemy used to manage Gonipterus platensis (Marelli, 1926) (Coleoptera: Curculionidae). Genomic DNA from six A. nitens populations was extracted and polymerase chain reactions (PCR) were performed with the primers to detect endosymbiont bacteria in this insect. The PCR products were amplified, sequenced, and compared with sequences deposited in the GenBank for the bacteria identification. All A. nitens populations had the bacterium Yersinia massiliensis (Enterobacteriales:Enterobacteriaceae). This bacterium was originally described as free-living, and it is associated with and composes part of the A. nitens microbiota. This is the first report of Y. massiliensis in an insect host.
As bactérias endossimbiontes podem afetar os parâmetros biológicos e reduzirem a eficácia de inimigos naturais no controle do inseto alvo. O objetivo deste trabalho foi identificar bactérias endossimbiontes em Anaphes nitens (Girault, 1928) (Hymenoptera: Mymaridae), o principal inimigo natural usado no manejo de Gonipterus platensis (Marelli, 1926) (Coleoptera: Curculionidae). O DNA genômico de seis populações de A. nitens foi extraído e as reações em cadeia da polimerase (PCR) realizadas com os primers para detectar bactérias endossimbiontes neste inseto. Os produtos de PCR foram amplificados, sequenciados e comparados com as sequências depositadas no GenBank para identificação das bactérias. Todas as populações de A. nitens tinham a bactéria Yersinia massiliensis (Enterobacteriales: Enterobacteriaceae). Esta bactéria foi originalmente descrita como de vida livre e está associada e compõe parte da microbiota de A. nitens. Este é o primeiro relato de Y. massiliensis em um hospedeiro.
Asunto(s)
Animales , Control Biológico de Vectores , Reacción en Cadena de la Polimerasa/veterinaria , Avispas/genética , YersiniaRESUMEN
Abstract Endosymbiont bacteria can affect biological parameters and reduce the effectiveness of natural enemies in controlling the target insect. The objective of this work was to identify endosymbiont bacteria in Anaphes nitens (Girault, 1928) (Hymenoptera: Mymaridae), the main natural enemy used to manage Gonipterus platensis (Marelli, 1926) (Coleoptera: Curculionidae). Genomic DNA from six A. nitens populations was extracted and polymerase chain reactions (PCR) were performed with the primers to detect endosymbiont bacteria in this insect. The PCR products were amplified, sequenced, and compared with sequences deposited in the GenBank for the bacteria identification. All A. nitens populations had the bacterium Yersinia massiliensis (Enterobacteriales: Enterobacteriaceae). This bacterium was originally described as free-living, and it is associated with and composes part of the A. nitens microbiota. This is the first report of Y. massiliensis in an insect host.
Resumo As bactérias endossimbiontes podem afetar os parâmetros biológicos e reduzirem a eficácia de inimigos naturais no controle do inseto alvo. O objetivo deste trabalho foi identificar bactérias endossimbiontes em Anaphes nitens (Girault, 1928) (Hymenoptera: Mymaridae), o principal inimigo natural usado no manejo de Gonipterus platensis (Marelli, 1926) (Coleoptera: Curculionidae). O DNA genômico de seis populações de A. nitens foi extraído e as reações em cadeia da polimerase (PCR) realizadas com os primers para detectar bactérias endossimbiontes neste inseto. Os produtos de PCR foram amplificados, sequenciados e comparados com as sequências depositadas no GenBank para identificação das bactérias. Todas as populações de A. nitens tinham a bactéria Yersinia massiliensis (Enterobacteriales: Enterobacteriaceae). Esta bactéria foi originalmente descrita como de vida livre e está associada e compõe parte da microbiota de A. nitens. Este é o primeiro relato de Y. massiliensis em um hospedeiro.
RESUMEN
Introducción. La intimidación escolar suele mantenerse oculta a los adultos, lo que genera desconocimiento por su parte. Objetivo. Describir la percepciónde los cuidadores y de sus hijos, y evaluar su concordancia ante situaciones de intimidación escolar. Métodos. Estudio transversal en niños/as de 8-12 años de escuelas estatales y sus cuidadores. Se utilizó el cuestionario sobre preconcepciones de intimidación y maltrato entre iguales (PRECONCIMEI) (versión niños/cuidadores). Variables estudiadas: magnitud de la intimidación, causas de la intimidación, participación del niño/a en situaciones de intimidación, comunicación en situaciones de intimidación. Se realizó un análisis univariado, bivariado y cálculo de concordancia con índice Kappa. Resultados. Participaron 529 parejas niño/a-cuidador. El 35% de los cuidadores refirió que, en la escuela de sus hijos/as, ocurrían situaciones de intimidación; 133 (25%) niños/as manifestaron estar involucrados: 70 (13%) por recibir intimidación; 40 (8%) por ejercerla y 23 (4%) por recibirla y ejercerla. De los 63 cuidadores de niños/as que manifestaron ejercer intimidación, el 78% no consideró a sus hijos como capaces de ejercerla. El 69,9% (65/93) de los niños que recibían o ejercían y recibían maltrato respondieron que " si sufriera intimidación, lo contaría a su familia". Empero, el 89,2% (83/93) de los cuidadores consideró que su hijo/a les contaría en caso de estar involucrado en tales situaciones. El 62,6% (57/91) de las parejas cuidadores-niños/as tuvo concordancia en una comunicación positiva (Kappa= -0,04). Conclusiones. Se halló discordancia entre niños/as y sus cuidadores en relación con la frecuencia y comunicación de situaciones de intimidación. Pocos cuidadores cuyos niños/as refirieron participar en estas situaciones consideraron que esto podría ocurrir.
Introduction. Bullying at school is usually kept secret from adults, making them unaware of the situation. Objective. To describe caregivers' and children's perception and assess their agreement in terms of bullying situations. Methods. Cross-sectional study in children aged 8-12 years old attending public schools and their caregivers. The questionnaire on preconceptions of intimidation and bullying among peers (PRECONCIMEI) (child/caregiver version) was used. Studied outcome measures: Scale of bullying, causes ofbullying, child involvement in bullying, communication inbullying situations. Univariate and bivariate analyses were done and agreement was estimated using the Kappa index. Results. A total of 529 child/caregiver dyads participated. Among caregivers, 35% stated that bullying occurred in their children's schools. Among children, 133 (25%) admitted to being involved: 70 (13%) were victims of bullying, 40 (8%) were bullies, and 23 (4%) were bullied and perpetrated bullying. Among the 63 caregivers of children who admitted to be bullies, 78% did not consider their children capable of perpetrating bullying. Among children who were bullied or who both suffered bullying and bullied others, 69.9% (65/93) indicated that " if they were the victims of bullying, they would tell their family." However, 89.2% (83/93) of caregivers considered that their children would tell them if they were ever involved in these situations. Agreement was observed in terms of a positive communication (Kappa = -0.04) between 62.6% (57/91) of the child/caregiver dyads. Conclusions. Disagreement was observed between children and their caregivers in relation to the frequency and communication ofbullying situations. Few caregivers whose children admitted to being involved in these situations believed it was a possibility.