759 research outputs found

    Contributions à l'étude des bactéries marines du littoral belge: IV. Recherche quantitative de la richesse microbienne de l'eau du bassin de chasse d'Ostende par lecture directe sur membranes filtrantes

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    In a series of bi-mensual samplings in 1966, the method of direct counting on membrane filters has been used to determine the quantity of bacteria present in the water of the Sluice-dock in Ostend (Belgium) as a possible important food-stock for oysters which are reared there

    Milieu en plankton in de Westerschelde

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    Outdoor mass production of marine microalgae for nursery culturing of bivalve molluscs

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    Nursery rearing of bivalve molluscs as the intermediate step between the controlled production of larvae in hatcheries and non-controlled growing-out in the wild, is a practice in modern shellfishery management which receives more and more attention. A major bottle-neck in the culturing process of the postlarval bivalves is, however, the production of large quantities of marine microalgae suitable as food for the growing spat. Experience was gained by the authors in small 1 m2 outdoor units with induced blooms of natural phytoplankton. The cultures were run either as a turbidostat or as a chemostat with discontinuous or continuous harvesting.Natural seawater (25-32°) was enriched with inorganic (commercial), or organic fertilizers (manure), solely or in combination. The influence of environmental factors such as light, temperature, detention time, nutrients and turbulence on yield and species composition are reviewed briefly. As a next step, a semi-industrial pilot plant for the controlled nursery growing of edible shellfish was designed and built at the Belgian coast. This pilot-scale plant should provide bio-technical guidelines, and aims at assessing the cost-benefit of an industrial bivalve nursery

    Parenting a child with Down syndrome:A qualitative study on parents' experiences and behaviors from a self-determination theory perspective

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    Purpose: Raising a child with Down syndrome (DS) brings unique challenges to parents' psychological functioning. Extensive quantitative research has shown that these parents tend to experience higher levels of parental stress and lower well-being. However, a more in-depth and balanced insight is essential to fully grasp the complexity of parenting a child with DS. To address this gap, this study uses a qualitative approach to explore the experiences and behaviors of parents raising a child with DS. Design and methods: By adopting the Self-Determination Theory as a comprehensive theoretical framework, this study attends to both opportunities and challenges for parents' psychological needs of autonomy, relatedness, and competence, and provides insights into how they support the psychological needs of their child with DS. Eleven in-depth interviews were conducted with parents of a child with DS (aged 4 to 23 years). Results: Through thematic analysis, six themes of parental experiences and three themes of parenting behaviors were distinguished. Conclusions: The findings indicated that parents experience many opportunities for need satisfaction, predominantly in their need for relatedness. However, raising a child with DS also involves challenges for the parents' family relationships, personal freedom, professional ambitions, and feelings of competence. Regarding their parenting behaviors, parents considered stimulating independence, tuning into the child's mental world, and being patient as essential practices when raising a child with DS. Practical implications: This study provides important clues to promote parents' well-being as well as their engagement in need-supportive parenting practices towards their child with DS.</p

    Parenting a child with Down syndrome:A qualitative study on parents' experiences and behaviors from a self-determination theory perspective

    Get PDF
    Purpose: Raising a child with Down syndrome (DS) brings unique challenges to parents' psychological functioning. Extensive quantitative research has shown that these parents tend to experience higher levels of parental stress and lower well-being. However, a more in-depth and balanced insight is essential to fully grasp the complexity of parenting a child with DS. To address this gap, this study uses a qualitative approach to explore the experiences and behaviors of parents raising a child with DS. Design and methods: By adopting the Self-Determination Theory as a comprehensive theoretical framework, this study attends to both opportunities and challenges for parents' psychological needs of autonomy, relatedness, and competence, and provides insights into how they support the psychological needs of their child with DS. Eleven in-depth interviews were conducted with parents of a child with DS (aged 4 to 23 years). Results: Through thematic analysis, six themes of parental experiences and three themes of parenting behaviors were distinguished. Conclusions: The findings indicated that parents experience many opportunities for need satisfaction, predominantly in their need for relatedness. However, raising a child with DS also involves challenges for the parents' family relationships, personal freedom, professional ambitions, and feelings of competence. Regarding their parenting behaviors, parents considered stimulating independence, tuning into the child's mental world, and being patient as essential practices when raising a child with DS. Practical implications: This study provides important clues to promote parents' well-being as well as their engagement in need-supportive parenting practices towards their child with DS.</p

    Implications of taxonomic modifications and alien species on biological water quality assessment as exemplified by the Belgian Biotic Index method

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    BRIEF OF APPELLEE THIS IS AN APPEAL FROM THE FINAL JUDGMENT OF THE THIRD JUDICIAL DISTRICT COURT, SALT LAKE COUNTY, STATE OF UTAH AFFIRMING THE ORDER OF SUSPENSION OF THE DRIVER\u27S LICENSE SERVICES, RENDERED IN AN ADMINISTRATIVE ADJUDICATION HEARING, THE HONORABLE RAYMOND S. UNO, JUDGE PRESIDING
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