The Tysfjord Turistsenter located in Storjord, Norway, is a hotel that offers a variety of nature related activities to their guests. The most popular activity is the nature- and killer whale safari that is offered in winter from the 1st of December until the 21th of February each year when the killer …

Fish have the natural behaviour to move across various aquatic ecosystems and for some species this is of vital importance. Migration is often a seasonal phenomenon which occurs in order to move between habitats, such as winter refuges-, foraging- and spawning or nursery habitats, also escaping unfavourable …

Designing a green gas supply to meet a regional seasonal demand: a case study.One of the issues concerning the replacement of natural gas by green gas is the seasonal pattern of the gas demand. When constant production is assumed, this may limit the injected quantity of green gas into a gas grid to the …

Alcohol use among adolescents has become a major public health concern over the past decade. This alcohol use is associated with various other problems, therefore it is important to detect at-risk adolescents as a starting point for interventions. The main aim of this thesis is to identify determinants …

AIMS: To assess the influence of peer alcohol use during adolescence on young adults' alcohol use and abuse, and to assess to what extent parents' perception of their adolescent child's friends and adolescent's self-control modify this influence. METHODS: We analyzed data from the first, third, and fourth …

This report examines the possibilities of using a solar chimney in a highland tropical climate to promote thermal comfort, air‐quality and energy consumption. The study is carried out using modeling and simulation techniques and is conducted at the Federal University of Viçosa in Brazil. A model is …

Aims: To investigate the influence of parenting styles (overprotection, emotional warmth, and rejection) in early adolescence on regular alcohol use in late adolescence. Methods: We analyzed data from the first three waves (mean ages: 11.09, 13.56, and 16.27 years, respectively) of a population-based …

This dissertation will focus on the greenhouse vegetable horticulture sector of the Netherlands, and will investigate how Dutch greenhouse companies can benefit from the relationship with Poland. Currently, the export of the Dutch greenhouse vegetable has decreased and the sector is experiencing the …

De thermodynamische warmtepomp is een interessante nieuwe technologie voor de Nederlandse markt. Door de panelen en het oppervlak is het rendement hoger dan een lucht warmtepomp. Ook hoeft dit systeem niet ontdooit te worden. Hier komt nog bij dat als de zon schijnt, gaat het rendement omhoog en ook …

There are several greenhouses built with solar panels integrated into the roof. In summer time this will operate very well, although broad shadow stripes can result in growth and yield differences. In winter the amount of sunlight is further limited by the solar panels and will result in further reduction …