scholarly journals Long‐term change in dissolved inorganic nutrients in the heterotrophic Scheldt estuary (Belgium, The Netherlands)

2006 ◽  
Vol 51 (1part2) ◽  
pp. 409-423 ◽  
Author(s):  
Karline Soetaert ◽  
Jack J. Middelburg ◽  
Carlo Heip ◽  
Patrick Meire ◽  
Stefan Van Damme ◽  
...  
2019 ◽  
Author(s):  
Malek Belgacem ◽  
Jacopo Chiggiato ◽  
Mireno Borghini ◽  
Bruno Pavoni ◽  
Gabriella Cerrati ◽  
...  

Abstract. Long-term time-series are a fundamental prerequisite to understand and detect climate shifts and trends. Understanding the complex interplay of changing ocean variables and the biological implication for marine ecosystems requires extensive data collection for monitoring and hypothesis testing and validation of modelling products. In marginal seas, such as Mediterranean Sea, there are still monitoring gaps, both in time and in space. To contribute filling these gaps, an extensive dataset of dissolved inorganic nutrients profiles (nitrate, NO3; phosphate, PO43−; and silicate, SiO2) have been collected between 2004 and 2017 in the Western Mediterranean Sea and subjected to quality control techniques to provide to the scientific community a publicly available, long-term, quality controlled, internally consistent biogeochemical data product. The database includes 870 stations of dissolved inorganic nutrients sampled during 24 cruises, including temperature and salinity. Details of the quality control (primary and secondary quality control) applied are reported. The data are available in PANGAEA (https://doi.org/10.1594/PANGAEA.904172, Belgacem et al. 2019).


2021 ◽  
Vol 23 (4) ◽  
pp. 43-50
Author(s):  
GULMIRA TOLGANBAEVA ◽  

The article analyzes the scientific approaches of Dutch scientists to the problems of managing the transition to sustainable development. Based on the analysis of research in the Netherlands, the author concludes on the methodological dominance of the coevolutionary concept and the theory of complex systems. The transition to sustainable development is seen as coevolutionary social change. Coevolution of sustainable development implies the possibility of transforming the processes of coevolution into a more sustainable way of development. The essence of managing the transition to sustainable development is goal-oriented modulation and directed coordination of all actors involved in this process. Transition management is viewed as a particular form of multilevel governance in which state and non-state actors work together to co-produce and coordinate policies in an iterative and coevolutionary way at different levels. The necessary qualities of such management are adaptability, reflexivity, and coherence of actors’ positions. Adaptive transition management involves the social learning of management actors based on problem structuring and strategic experimentation. Transition management combines elements of long-term planning, elements of incremental market approach, and social network interaction management techniques. Distinctive characteristics of such management are heterarchy, three-tiered structure, and distributed administration. Since transition management is aimed at long-term change of functional systems in a gradual way, with the use of variations and their selection, its implementation is possible in a society whose interests are well organized, and there is no authoritarian management. The considered scientific foundations for managing the transition to sustainable development are used in the Netherlands to manage the transition to sustainable energy, sustainable mobility, sustainable agriculture, sustainable water use, and the transition to biodiversity and natural resources. In Russia and Kazakhstan, it is possible to use this approach to select, organize and structure management styles and tools for managing the transition to sustainable development.


2020 ◽  
pp. 53-66
Author(s):  
Maurice Harteveld

This commentary aims to provide a window on the future by studying actions, taken to control the spreading of the corona virus, while obviously affecting public space over a year. What has been the effects on public space directly linked to these actions during the pandemic; what values play a role, and what can we expect for the future? We have seen how immediate responses induced by the COVID-19 crisis influences traveling, gathering, and public live in general. Now, it is time to look further. Having a base-point in Rotterdam and taking The Netherlands as an example, the commentary argues that some shifts in using, appropriating and experiencing public space will remain. Yet, mainly those not just being immediate responses to sudden societal change, rather those which are embedded in long-term change.


2020 ◽  
Vol 12 (3) ◽  
pp. 1985-2011
Author(s):  
Malek Belgacem ◽  
Jacopo Chiggiato ◽  
Mireno Borghini ◽  
Bruno Pavoni ◽  
Gabriella Cerrati ◽  
...  

Abstract. Long-term time series are a fundamental prerequisite to understanding and detecting climate shifts and trends. Understanding the complex interplay of changing ocean variables and the biological implication for marine ecosystems requires extensive data collection for monitoring, hypothesis testing, and validation of modelling products. In marginal seas, such as the Mediterranean Sea, there are still monitoring gaps, both in time and in space. To contribute to filling these gaps, an extensive dataset of dissolved inorganic nutrient observations (nitrate, phosphate, and silicate) was collected between 2004 and 2017 in the western Mediterranean Sea and subjected to rigorous quality control techniques to provide to the scientific community a publicly available, long-term, quality-controlled, internally consistent biogeochemical data product. The data product includes 870 stations of dissolved inorganic nutrients, including temperature and salinity, sampled during 24 cruises. Details of the quality control (primary and secondary quality control) applied are reported. The data are available in PANGAEA (https://doi.org/10.1594/PANGAEA.904172, Belgacem et al., 2019).


2006 ◽  
Vol 27 (4) ◽  
pp. 218-228 ◽  
Author(s):  
Paul Rodway ◽  
Karen Gillies ◽  
Astrid Schepman

This study examined whether individual differences in the vividness of visual imagery influenced performance on a novel long-term change detection task. Participants were presented with a sequence of pictures, with each picture and its title displayed for 17  s, and then presented with changed or unchanged versions of those pictures and asked to detect whether the picture had been changed. Cuing the retrieval of the picture's image, by presenting the picture's title before the arrival of the changed picture, facilitated change detection accuracy. This suggests that the retrieval of the picture's representation immunizes it against overwriting by the arrival of the changed picture. The high and low vividness participants did not differ in overall levels of change detection accuracy. However, in replication of Gur and Hilgard (1975) , high vividness participants were significantly more accurate at detecting salient changes to pictures compared to low vividness participants. The results suggest that vivid images are not characterised by a high level of detail and that vivid imagery enhances memory for the salient aspects of a scene but not all of the details of a scene. Possible causes of this difference, and how they may lead to an understanding of individual differences in change detection, are considered.


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