ABSTRACT
OBJECTIVE: Based on the line operations safety audit (LOSA), two studies were conducted to develop and deploy an equivalent tool for aircraft maintenance: the maintenance operations safety survey (MOSS). BACKGROUND: Safety in aircraft maintenance is currently measured reactively, based on the number of audit findings, reportable events, incidents, or accidents. Proactive safety tools designed for monitoring routine operations, such as flight data monitoring and LOSA, have been developed predominantly for flight operations. METHOD: In Study 1, development of MOSS, 12 test peer-to-peer observations were collected to investigate the practicalities of this approach. In Study 2, deployment of MOSS, seven expert observers collected 56 peer-to-peer observations of line maintenance checks at four stations. Narrative data were coded and analyzed according to the threat and error management (TEM) framework. RESULTS: In Study 1, a line check was identified as a suitable unit of observation. Communication and third-party data management were the key factors in gaining maintainer trust. Study 2 identified that on average, maintainers experienced 7.8 threats (operational complexities) and committed 2.5 errors per observation. The majority of threats and errors were inconsequential. Links between specific threats and errors leading to 36 undesired states were established. CONCLUSION: This research demonstrates that observations of routine maintenance operations are feasible. TEM-based results highlight successful management strategies that maintainers employ on a day-to-day basis. APPLICATION: MOSS is a novel approach for safety data collection and analysis. It helps practitioners understand the nature of maintenance errors, promote an informed culture, and support safety management systems in the maintenance domain.
Subject(s)
Aircraft/standards , Maintenance/methods , Safety Management/methods , Adult , Humans , Maintenance/standards , Safety Management/standardsABSTRACT
In the present research, the recently proposed 3 × 2 model of achievement goals is tested and associations with achievement emotions and their joint influence on academic achievement are investigated. The study was conducted with 388 students using the 3 × 2 Achievement Goal Questionnaire including the six proposed goal constructs (task-approach, task-avoidance, self-approach, self-avoidance, other-approach, other-avoidance) and the enjoyment and boredom scales from the Achievement Emotion Questionnaire. Exam grades were used as an indicator of academic achievement. Findings from CFAs provided strong support for the proposed structure of the 3 × 2 achievement goal model. Self-based goals, other-based goals and task-approach goals predicted enjoyment. Task-approach goals negatively predicted boredom. Task-approach and other-approach predicted achievement. The indirect effects of achievement goals through emotion variables on achievement were assessed using bias-corrected bootstrapping. No mediation effects were found. Implications for educational practice are discussed.
ABSTRACT
El proceso psicoanalítico, la transferencia y la contratransferencia son temas fundamentales en el campo del psicoanálisis. Este libro, consagrado en su totalidad a esas cuestiones, tiene el excepcional valor de recoger el producto de una confrontación de las coincidencias y las discrepancias entre los psicoanalistas norteamericanos y latinoamericanos
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Esta obra reune, como su título lo indica, trece cuentos de ciencia ficción escritos por nueve psicoanalistas
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En este libro se incluyen dos obras de dos autores: "Teoría psicoanalítica de la libido" de Richard Sterba y "Aporte kleiniano a la evolución instintiva" de Marie Langer
ABSTRACT
En este libro se incluyen dos obras de dos autores: "Teoría psicoanalítica de la libido" de Richard Sterba y "Aporte kleiniano a la evolución instintiva" de Marie Langer
