To increase the yield and quality of aquaculture feed, the effects of N and P concentrations on biomass productivity and cell composition were examined in the marine diatom Skeletonema costatum. Batch-cultured microalgae in Walne’s medium with 3.5 ± 0.5 mmol L-1 N-NO3- and 0.30 ± 0.05 mmol L-1 P-PO43- …

Nutrition, Physical activity and a green environment are known as important factors for human health. However, much people work at an office and spend a large part of the day in the office. Research shows that this work environment is not healthy in all cases. The available food in the office is known …

Health problems may cause decreased productivity among working people. It is unclear if this also applies for people living with HIV (PLWH). This cross-sectional study compares data of PLWH of one of the main HIV treatment centres in the Netherlands (n = 298) to data of the general working population …

Objective To evaluate the effectiveness of a comprehensive workers’ health surveillance (WHS) program on aspects of sustainable employability and cost-benefit. Methods A cluster randomized stepped wedge trial was performed in a Dutch meat processing company from february 2012 until march 2015. In total …

There is consensus that plant species richness enhances plant productivity within natural grasslands, but the underlying drivers remain debated. Recently, differential accumulation of soil‐borne fungal pathogens across the plant diversity gradient has been proposed as a cause of this pattern. However, …

This study was conducted to investigate dairy farming practices and gross margin at smallholder dairy farmer level to design a business model for scaling up climate-smart dairy in Ziway-Hawassa milk shed. 80 sample dairy farmers from five districts (which then categorised as urban and peri-urban dairy …

Climate change is a major hindrance to global sustainable development. The well being of future generations is facing critical environmental challenges. The effect of globalization in terms of economic, social and technological changes have been rapid and have left human beings behind schedule yet hunger …

Côte d’Ivoire produces about 42 percent of the world’s total Cocoa but processes only a very few amount of the production. A big part of the country depends on the commercial benefits of the Cocoa production and supply chain of it. For that reason, the World Bank asked the simulation group of the Amsterdam …

from the thesis: "The construction industry is known for its waste of money and materials, low innovative capacities, and low productivity (Cox and Thompson, 1997; Vrijhoef, 2011). One reason is that the relationships between client and contractors is often perceived as a problematic one (Tazelaar en …

The aquaculture sector is expanding worldwide, which gives this sector an important economic potential. A problem for the on land aquaculture sector is that there is insufficient quality feed for cultivating fish larvae and shellfish. Based on this problem the RAAQUA project was launched (Robust Algae …