2,315 research outputs found
Beach response to high energy wave climate: a case study in the portuguese west coast
Portugal’s western coast is a wave-dominated rocky coast with a semidiurnal mesotidal regime. The
wave climate is highly conditioned by the Atlantic Ocean’s atmospheric circulation, which results in a seasonalchange in wave patterns. Storms are frequent during winter and can reach 10-m wave heights with a 5-year recurrence period. Four profile monitoring campaigns were carried out in December 2005, January and May 2006 using a GPS and a total station to evaluate the response of three different beach systems to high wave climate events, comparing pre-storm wave, morphology and sediment characteristics with the modifications induced in the system after the storm event. A series of 64 beach profiles is analysed in terms of sediment textural properties, volume, slope, surf similarity
index and dimensionless fall velocity parameters’ variability. Each beach system’s modal and limit morphological behaviours are established according to Wright and Short’s morphodynamic model.La costa oeste de Portugal es una costa rocosa dominada por olas y con un régimen mesomareal
semidiurno. El clima marĂtimo está altamente condicionado por la circulaciĂłn atmosfĂ©rica del ocĂ©ano Atlántico y presenta una variabilidad estacional en el rĂ©gimen de oleaje. Las tormentas son frecuentes durante el invierno y pueden alanzar alturas de ola de 10 m con una recurrencia de 5 años. Se han hecho cuatro campañas de control en tres playas, mediante el uso de GPS diferencial y estaciĂłn total con el objetivo de evaluar su respuesta a sendos episodios de alta energĂa. Se comparan los cambios en la morfologĂa y en la textura sedimentaria antes y despuĂ©s de cada temporal. Para ello se realizaron 64 perfiles de playa y se han analizado las variaciones en la textura del sedimento, el volumen, la pendiente, el Ăndice de surf similarity y el parámetro adimensional de caĂda del sedimento. Con todo ello ha podido establecerse el comportamiento morfolĂłgico modal y extremo de dichas playas segĂşn el modelo de Wright y Short.info:eu-repo/semantics/publishedVersio
Avaliação da interação inseticida via tratamento de sementes e herbicidas em pré-emergência, na cultura do milho.
Getting entangled with body image: Development and validation of a new measure.
Ferreira, C., Trindade, I. A., Duarte, C. & Pinto-Gouveia, J. (2015). Getting entangled with body image: Development and validation of a new measure. Psychology and Psychotherapy: Theory, Research and Practice, 88(3), 304–316. doi: 10.1111/papt.12047Objectives. Several studies have highlighted the role of cognitive fusion on human suffering and a wide range of psychopathological conditions. Namely, this process has
been regarded as a core aspect in eating disorders. Nevertheless, the study of cognitive fusion on eating psychopathology is scarce and a measure that specifically concerns body image was still to be created. The present study aimed therefore at developing and validating such measure, the Cognitive Fusion Questionnaire Body Image (CFQ-BI).
Design and methods. The current study was conducted using different samples of both genders, collected in the general and student populations. The dimensionality of the CFQ-BI was tested through an exploratory factor analysis and a confirmatory factor
analysis (CFA). The scale’s internal reliability and other psychometric qualities were also analysed.
Results. The CFQ-BI’s final structure was one-dimensional and comprised 10 items that assess body image-related cognitive fusion. This final structure explained a total of 73.41% of the variance. The adequacy of the questionnaire was corroborated through a CFA which revealed that CFQ-BI presents good global and local adjustment values and goodness-of-fit indices. Results also showed that the CFQ-BI holds a very good internal consistency (a = .96), convergent, divergent and temporal reliabilities, and is able to discriminate cases from non-cases of eating psychopathology.
Conclusions. The CFQ-BI was thus established as a short, robust, and reliable measure of body image-related cognitive fusion. This new measure may correspond to a significant contribution to research and clinical practice in the field of body image and eating-related difficulties
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