RESUMO
MAIN CONCLUSION: Higher vacuolar proton pump activity may increase plant energy and nutrient use efficiency and provide the nexus between plant inoculation with Herbaspirillum seropedicae and growth promotion. Global change and growing human population are exhausting arable land and resources, including water and fertilizers. We present inoculation with the endophytic plant-growth promoting bacterium (PGPB) Herbaspirillum seropedicae as a strategy for promoting growth, nutrient uptake and photosynthetic efficiency in rice (Oryza sativa L.). Because plant nutrient acquisition is coordinated with photosynthesis and the plant carbon status, we hypothesize that inoculation with H. seropedicae will stimulate proton (H+) pumps, increasing plant growth nutrient uptake and photosynthetic efficiency at low nutrient levels. Plants were inoculated and grown in pots with sterile soil for 90 days. Herbaspirillum seropedicae endophytic colonization was successful and, as hypothesized, inoculation (1) stimulated root vacuolar H+ pumps (vacuolar H+-ATPase and vacuolar H+-PPase), and (2) increased plant growth, nutrient contents and photosynthetic efficiency. The results showed that inoculation with the endophytic bacterium H. seropedicae can promote plant growth, nutrient uptake and photosynthetic efficiency, which will likely result in a more efficient use of resources (nutrients and water) and higher production of nutrient-rich food at reduced economic and environmental costs.
Assuntos
Herbaspirillum , Oryza , Fotossíntese , Herbaspirillum/fisiologia , Interações entre Hospedeiro e Microrganismos/fisiologia , Nutrientes/metabolismo , Oryza/genética , Oryza/microbiologia , Fotossíntese/fisiologiaRESUMO
RESUMO Este estudo qualitativo teve como objetivo analisar as perceções de alunos adolescentes acerca dos aspetos que facilitam e dificultam a sua aprendizagem. O conhecimento das perceções dos alunos sobre a sua aprendizagem permite melhorar a qualidade dos processos de ensino-aprendizagem. A partir de um guião semiestruturado, foram realizados cinco grupos focais, em cinco escolas privadas do Norte de Portugal, tendo participado 32 alunos selecionados aleatoriamente. Os participantes eram alunos do 3º ciclo do Ensino Básico (7º, 8º e 9º anos), com idades compreendidas entre os 12 e os 15 anos. A análise dos dados seguiu um processo semi-indutivo de codificação descritiva. Os resultados realçam o papel fundamental do professor na aprendizagem; a importância da ação vs passividade dos alunos na sala de aula; a relevância da dimensão emocional e relacional para o envolvimento do aluno; e a relevância das estratégias de autorregulação da aprendizagem. Como implicações sugere-se a concretização de ações junto de professores e alunos assente nos dados recolhidos e analisados, que sejam promotoras da metacognição de ambos.
RESUMEN Este estudio cualitativo tuvo como objetivo analizar las percepciones de alumnos adolescentes acerca de los aspectos que facilitan y dificultan su aprendizaje. El conocimiento de las percepciones de los alumnos sobre su aprendizaje permite mejorar la calidad de los procesos de enseñanza-aprendizaje. A partir de un guión semiestructurado, cinco discusiones en grupos focales se llevaron a cabo en cinco escuelas privadas en el Norte de Portugal, que han participado 32 estudiantes seleccionados aleatoriamente. Los participantes eran alumnos del 3º ciclo de la Enseñanza Básica (7º, 8º y 9º años), con edades comprendidas entre los 12 y los 15 años. El análisis de los datos siguió un proceso semi-inductivo de codificación descriptiva. Los resultados subrayan el papel fundamental del profesor para el aprendizaje; la importancia de la acción de los alumnos en el aula versus pasividad; la relevancia de la dimensión emocional y relacional para la participación del alumno y de las estrategias de autorregulación del aprendizaje. Como implicaciones se sugiere la concreción de acciones junto a profesores y alumnos acerca de los datos recogidos y analizados, que sean promotores de la metacognición de ambos.
ABSTRACT This qualitative study aimed to understand the perceptions of adolescent students about what facilitates and hinders their learning. The knowledge of students' perceptions about their learning allows to improve the quality of the learning processes quality. Five focus groups were conducted, with a semi-structured script, in five different private schools from the North of Portugal, having participated in 32 students randomly selected. Participants were students from 7th, 8th and 9th grades, with ages between 12 and 15 years old. The data analysis followed a semi-inductive process and descriptive coding of data. The results highlighted the key role of teachers in students' learning; the importance of students action versus passivity in the classroom; the relevance of emotional and relational dimension to enhance students' engagement, and the relevance of learning self-regulation strategies. As for implications, it is suggested that actions be carried out with teachers and students based on the data collected and analyzed, in order to promote metacognition of both.
Assuntos
Humanos , Masculino , Feminino , Adolescente , Comportamento do Adolescente/psicologia , Conhecimento , Aprendizagem , Psicologia/educação , Instituições Acadêmicas , Estudantes/psicologia , Ensino/psicologia , Estratégias de Saúde , Grupos Focais , Relações Pesquisador-Sujeito/psicologia , Docentes/psicologia , Metacognição , MotivaçãoRESUMO
The 37th edition of MaxEnt was held in Brazil, hosting several distinguished researchers and students. The workshop offered four tutorials, nine invited talks, twenty four oral presentations and twenty seven poster presentations. All submissions received their first choice between oral and poster presentations. The event held a celebration to Julio Stern's 60th anniversary and awarded two prizes to young researchers. As customary, the workshop had one free afternoon, in which participants visited the city's surroundings and experienced Brazilian food and traditions.
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Dimorphandra wilsonii, a Cerrado endemic Fabaceae tree, is threatened by land-use changes. The few remaining individuals occur in areas dominated by alien grasses like Urochloa decumbens. We tested the impact of nitrogen (N) availability and symbionts' presence on mitigating the effects of competition from U. decumbens. Dimorphandra wilsonii seedlings were 50-week pot-cultivated under limiting (3mM) or non-limiting (10mM) N, with or without U. decumbens, and inoculated or not with a N-fixer (Bradyrhizobium sp.) and an arbuscular mycorrhizal fungus (AMF - Glomus etunicatum), both forming symbioses in the field. Since D. wilsonii seedlings grew more and 'lost' fewer nutrients under the symbionts' presence, symbionts mitigated plant-plant competition. Under limiting N, inoculated D. wilsonii seedlings grew more (despite no nodulation), but N fixation was only suggested when inoculated D. wilsonii seedlings competed with U. decumbens. D. wilsonii13C, and substrate's carbon and respiration suggest that only the microbes performing key functions received plant carbon. Under non-limiting N, inoculated D. wilsonii seedlings became enriched in 13C, substrate accumulated carbon and microbial respiration increased, suggesting a more generalist microbial community. Data suggest inoculating D. wilsonii seeds/seedlings with AMF and N-fixers as a conservation measure. However, long-term field-studies need to confirm these conclusions.
Assuntos
Fabaceae/metabolismo , Fabaceae/microbiologia , Micorrizas/fisiologia , Bradyrhizobium/fisiologia , Nitrogênio/metabolismo , SimbioseRESUMO
Este estudo teve como objetivo analisar a produção científica acerca da auditoria em enfermagem publicada em artigos nacionais entre 1998 e 2008. Realizou-se uma revisão sistemática da literatura, com os artigos sendo pesquisados nas bases de dados LILACS e SciELO, a partir dos descritores auditoria, auditoria de enfermagem, qualidade da assistência à saúde e supervisão de enfermagem. A amostra constituiu-se de dez trabalhos. As publicações analisadas descrevem as principais distorções e não conformidades presentes nas anotações de enfermagem, relacionando-as, principalmente, com a qualidade da assistência de enfermagem e com os prejuízos financeiros às instituições. As publicações também destacam a função administrativa do enfermeiro, sobretudo a função de liderança junto à equipe de enfermagem; e a auditoria de enfermagem, como um processo educativo.
This study aimed to analyze the scientific production about audit in nursing, published in national papers, between 1998 and 2008. A systematic review of the literature was conducted, with articles being searched in the databases LILACS and SciELO, from the key words: audit, nursing, quality health care and nursing supervision. The sample consisted of ten works. The analyzed publications describe the main distortions and non-conformities found in nursing records, relating them mainly with the quality of nursing care and with the financial damage to the institutions. The publications also include the administrative role of the nurse, especially her/his leadership role in the team of nursing; and nursing audit as an educational process.
Este estudio tuvo el objetivo de analizar la producción científica sobre la auditoría en enfermería publicada en artículos nacionales entre 1998 y 2008. Esta es una revisión sistemática de la literatura. Los artículos fueron buscados en las bases de datos LILACS y SciELO a partir de los descriptores auditoría, la auditoría de enfermería, atención de salud de calidad y supervisión de enfermería, constituyéndose una muestra de 10 trabajos. Las publicaciones analizadas describen las principales distorsiones e inconformidades presentes en las notas de enfermería relacionándolas, principalmente, con la calidad de los cuidados de enfermería y los prejuicios financieros. También destacan la función administrativa de los enfermeros, en especial su papel como líder del equipo de enfermería y la auditoría en enfermería como un proceso educativo.
Assuntos
Auditoria de EnfermagemRESUMO
This study aimed to analyze the scientific production about audit in nursing, published in national papers, between 1998 and 2008. A systematic review of the literature was conducted, with articles being searched in the databases LILACS and SciELO, from the key words: audit, nursing, quality health care and nursing supervision. The sample consisted of ten works. The analyzed publications describe the main distortions and non-conformities found in nursing records, relating them mainly with the quality of nursing care and with the financial damage to the institutions. The publications also include the administrative role of the nurse, especially her/his leadership role in the team of nursing; and nursing audit as an educational process.