24 research outputs found
Fostering teacher community development: A review of design principles and a case study of an innovative interdisciplinary team
To deal with recent reforms and the accompanying complexity of work in
secondary education, ongoing collaboration between teachers has become more important.
A community is seen as a promising learning environment to support and embed collaboration
into the culture of the school. However, community theory for the design of teacher
communities seems underdeveloped. Therefore, this study aims to formulate a set of design
principles to foster the development of teacher communities in secondary education. The
set of design principles is based on a review of literature, as well as on a best-practice case.
The case study was used to validate design principles from the literature in the target
context. The resulting design principles were based on context-intervention-mechanismoutcome
logic that takes into account the context-dependency of interventions as well as
the mechanisms that help with understanding of how interventions produce certain outcomes.
Implications for practice relate to ownership and co-design of the arrangement. The
set of design principles provides a practical basis for teachers and administrators aiming to
facilitate community building in their school. Future research is recommended on testing
the effectiveness of the arrangement in the target context by means of a multiple case
study.NWO-pro
Food sources of macrobenthos in an estuarine seagrass habitat (Zostera noltii) as revealed by dual stable isotope signatures
Conservation status of the American horseshoe crab, (Limulus polyphemus): a regional assessment
Using ocean quahog (Arctica islandica) shells to reconstruct palaeoenvironment in Ă–resund, Kattegat and Skagerrak, Sweden
Coupled North Atlantic slope water forcing on Gulf of Maine temperatures over the past millennium
Ecologia trófica de Portunus spinimanus Latreille (Decapoda, Portunidae) na Armação do Itapocoroy, Penha, Santa Catarina, Brasil
Age determination and growth rate of Mactra chinensis (Bivalvia: Mactridae) by external rings and chondrophore growth bands
The effects of temperature on walking and righting in temperate and Antarctic crustaceans
Antarctic marine invertebrates live in a cold, thermally stable environment and cannot tolerate large changes in body temperature (i.e. they are stenothermal). Their temperate relatives, by contrast, are eurythermal, living in warmer and thermally more variable environments. Have these different environments influenced how specific behaviours are affected by changes of temperature? This question was addressed in two temperate crustaceans, the decapod Carcinus maenas and isopod Ligia oceanica, and two Antarctic crustaceans, the isopod Glyptonotus antarcticus and amphipod Paraceradocus gibber. The thermal dependence of walking speed was analysed by contrasting the slopes of the linear part of each species' behavioural curve. Over the temperature ranges analysed, the temperature sensitivity of walking speed in the stenotherms was 13-23% that of the eurytherms when measured in body lengths s(-1). There was a linear relationship between walking speed and temperature up to +4.5 degrees C in the Antarctic species G. antarcticus and P. gibber. Elevating temperature by up to 3.5 degrees C above the maximum temperature experienced in the Antarctic (+1 degrees C), does not lead to an acute breakdown of motor coordination. We describe for the first time the righting behaviour of G. antarcticus. The mean time-to-right tended to a minimum on warming from -2 to+5 degrees C, but this trend was not statistically significant. Our results suggest that the physiological adaptations which permit continued activity at low Antarctic temperatures have resulted in a lower thermal dependence of activity in Antarctic species, compared to related temperate species