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Sleep and nesting behavior in primates: a review Koninklijke Maatschappij voor Dierkunde van Antwerpen
Sleep is a universal behavior in vertebrate and invertebrate animals, suggesting it originated in the very first life forms. Given the vital function of sleep, sleeping patterns and sleep architecture follow dynamic and adaptive processes reflecting trade-offs to different selective pressures. Here, we review responses in sleep and sleep-related behavior to environmental constraints across primate species, focusing on the role of great ape nest ...
Behavioral strategies and the spatial pattern formation of nesting Universiteit Gent Instituut voor Natuur- en Bosonderzoek
Nesting in dense aggregations is common in central place foragers, such as group-living birds and insects. Both environmental heterogeneity and behavioral interactions are known to induce clustering of nests, but their relative importance remains unclear. We developed an individual-based model that simulated the spatial organization of nest building in a gregarious digger wasp, Bembix rostrata. This process-based model integrates environmental ...
Testing an integrated model of the theory of planned behaviour and self-determination theory for different energy balance-related behaviours and intervention intensities Universiteit Hasselt Universiteit Gent
Objectives The aim of the study was to test the relations between constructs from the self-determination theory (autonomous and controlled motivation), the theory of planned behaviour (attitudes, self-efficacy, and intentions), and behaviour change within a theoretically integrated model. Additionally, the aim was to test if these relations vary by behaviour (physical activity or dietary behaviour) or intervention intensity (frequency). Design ...
Enzyme polymorphisms in the Anopheles gambiae (Diptera: Culicidae) complex related to feeding and resting behavior in the Imbo valley, Burundi Instituut voor Tropische Geneeskunde
A cellulose acetate electrophoresis system was used to study the Anopheles gambiae complex at 2 villages in Central Imbo Valley and at 1 village in South Imbo Valley (Burundi). In South Imbo, only An. gambiae Giles sensu stricto was present. In the drier Central Imbo, the dominant species was An. arabiensis Patton (97.5%); An. gambiae s.s. represented only 2.5%. Both species were separated readily by Odh and Mpi, because they did not share ...
Influence of nest seclusion and nesting material on pre-laying behaviour of laying hens Instituut voor Landbouw-, Visserij- en Voedingsonderzoek Universiteit Antwerpen Universiteit Gent
Provision of nest sites is beneficial for the welfare of laying hens in intensive production systems. The design of these nest sites has a direct effect on pre-laying behaviour. The aim of this study was to investigate the effects of screening off the entrances of the nest boxes with non-transparent flaps and providing nesting or flooring material on pre-laying behaviour. Eighteen individual Hisex brown laying hens and 18 groups of five hens ...
Crystallization and melting behavior of phytosterol esters and their phase behavior in blends with palm oil KU Leuven
Phytosterols are plant based compounds with chemical structures similar to cholesterol and have nutritionally beneficial properties, more specifically a blood cholesterol lowering effect. In order to increase their lipid solubility and thus facilitate their incorporation into fat containing food products, phytosterols are esterified with fatty acids (FA) to obtain phytosterol esters. Addition of PE to fat (containing products) will undoubtedly ...
Microscale and macroscale deformation behavior of electrospun polymeric nanofiber membranes using in situ SEM during mechanical testing Universiteit Gent
Effect of preceding activity and multiple testing of Belgian police horses on behavior during personality tests KU Leuven
© 2018 Elsevier Inc. Operational police horses must perform under challenging circumstances, so the selection of suitable equine training candidates should include an evaluation of their personalities. We describe the developmental phase of a project aimed at customizing selection tests for mounts at the Belgian Federal Police. The experiment evaluated the influence of preceding activity and multiple testing on behavior during personality tests. ...
Assessment of ultra-high cycle fatigue behavior of EN-GJL-250 cast iron using ultrasonic fatigue testing machine Universiteit Gent
High cycle fatigue comprising up to 107 load cycles has been the subject of many studies, and the behavior of many materials was recorded adequately in this regime. However, many applications involve larger numbers of load cycles during the lifetime of machine components. In this ultra-high cycle regime, other failure mechanisms play, and the concept of a fatigue endurance limit (assumed for materials such as steel) is often an ...