801 research outputs found
De dijkdoorbraak bij Ouderkerk (Z-H) in 1953
No full textDagboekverslag van Johan van Veen over zijn activiteiten bij het stroomgat bij Ouderkerk en zijn pogingen om dat te dichten. Met een transcriptie door Willem van der Ha
Onderzoekingen in de Hoofden in verband met de gesteldheid der Nederlandsche kust
No full textOnderzoek van Johan van Veen naar de stromingen en de morfologie in Het Kanaal (oude benaming van "Het Kanaal" is "De Hoofden") en in het Nauw van Calais. Dit onderzoek is de basis voor het moderne kustmorfologisch onderzoek
Breeding against osteochondrosis : phenotypic and genetic analyses in horses and pigs
No full text Osteochondrosis (OC) is a disturbance in the process of endochondral ossification during skeletal growth. The objectives of this thesis were to assess the prevalence and genetic parameters of OC, and to facilitate optimization of breeding against OC in horses and pigs. In the Dutch warm blood horse, 70% of individuals showed joint abnormalities in at least one of the 28 locations examined. Joint abnormalities were divided into flattened bone contours and bone fragments. Genetic parameters were estimated for flattened bone contours, fragments and overall OC. Heritability was 0.08 for flattened bone contours, 0.22 for fragments, and 0.23 for overall OC. In fattening pigs, the prevalence of OC was 41%, and 12% of the individuals had severe OC. The prevalence was highest for individuals kept on a concrete, partially slatted floor with ad libitum feeding (58%), and lowest for individuals kept on a deep litter floor with restricted feeding (34%). These results demonstrate that the prevalence of OC can be reduced by applying deep litter floors and restricted feeding. The differences in growth patterns between pigs with and without OC were investigated also. After 28 days of age, piglets with severe OC at slaughter started to grow faster, and were significantly heavier after 70 days of age than pigs without OC at slaughter. These results suggest that OC might be related to high growth rates during a specific time period. To evaluate prospects for breeding against OC, selection responses were compared between breeding schemes using phenotypic selection based on own performance or progeny testing and genomic selection. The results show that, when genomic information has an equal accuracy as phenotypic information before selection, it will have a lower equilibrium response to selection because it has a larger Bulmer effect. Especially for low heritable traits, genomic selection was of additional value over traditional selection. The general discussion argues that OC has both economical and practical relevance for the current horse industry. Simulations showed potential for genomic selection compared to the current breeding program in the Dutch warmblood horse (KWPN), even with small reference populations. In pigs, OC is a more serious problem in sows than in fattening pigs, because sows live longer. A decrease in OC prevalence will, therefore, yield larger economic and welfare benefits then apparent from results on fattening pigs. Also for pigs, simulations indicated possibilities for genomic selection. The final section of the general discussion proposes directions for future research.</p
Opmerkingen inzake Scheldepublicaties, vooral met het oog op invloed inpolderingen
No full textHeruitgave uit 1993 door RIKZ van de oorspronkelijke nota van Johan van Veen. Analyse van morfologische studies, analyse van de Kreekrakwerken
Integraal sturen op ontwerp, bouw en beheer van ziekenhuizen
No full textOp 16 oktober promoveerde Johan van der Zwart op het onderwerp ‘Building for a better hospital: value-adding management & design of healthcare real estate’. Een dag later lieten vier gerenommeerde experts hun licht schijnen over ditzelfde onderwerp. Een impressie van de bevindingen.Real Estate and HousingArchitecture and The Built Environmen
Author Correction: Establishment and equilibrium levels of deleterious mutations in large populations (Scientific Reports, (2019), 9, 1, (10384), 10.1038/s41598-019-46803-7)
No full textThe original version of this Article contained errors. Affiliations 1 and 2 were reversed. Secondly, Affiliation 7 was incorrectly given as ‘Institute for Cellular and Molecular Medicine, Department of Immunology, and SAMRC Extramural Unit for Stem Cell Research and Therapy, Faculty of Health Sciences, University of Pretoria, Pretoria, 0084, South Africa’. Thirdly, an affiliation was omitted for the author Michael S. Pepper, which is now listed as Affiliation 8. Fourthly, Affiliation 1 was omitted for the author Johan W. Viljoen. Finally, Augustinus J. van Zyl was incorrectly affiliated with ‘Institute for Maternal and Child Health, IRCCS ‘Burlo Garofolo’, Trieste, Italy.’ The correct author affiliations are listed below: Affiliation 1: Department of Electrical, Electronic and Computer Engineering, EBIT, University of Pretoria, Pretoria 0028, South Africa Johan W. Viljoen and J. Pieter de Villiers Affiliation 2: Development, Research and Technology Department, Hensoldt Optronics, Centu..
Aantekeningen bij een literatuurstudie over kustmorfologie
No full textManuscript met aantekeningen van Johan van Veen over kustmorfologie. Van Veen heeft ten behoeve van zijn promotieonderzoek alle op dat moment beschikbare literatuur over kustmorfologie in relatie tot de Noordzeekust bestudeerd. Dit cahier is een weerslag van die studie, met eigen kritische opmerkingen. Het is de basis van het later verschenen proefschrift, zie related item
Arginase I, polyamine, and prostaglandin E2 pathways suppress the inflammatory response and contribute to diffuse cutaneous leishmaniasis (vol 211, pg 426, 2015)
No full textIn “Arginase I, polyamine, and prostaglandin E2 pathways suppress
the inflammatory response and contribute to diffuse cutaneous
leishmaniasis” by França-Costa et al [J Infect Dis 2015;
211:426–35], a second affiliation for Johan Van Weyenbergh
should have been added. The second affiliation should be Department
of Microbiology and Immunology, Rega Institute
for Medical Research, KU Leuven, Leuven, Belgium.
The author regrets this error.status: Publishe
Getijberekeningen
No full textManuscript met aantekeningen van Johan van Veen over getijberekeningen. Geanalyseerd zijn de getijberekeningen van Lorentz voor de afsluiting van de Zuiderzee, vervolgens heeft Van Veen hierop doorgebouwd en een oplossing gevonden voor getijberekeningen met bovenafvoer en hij geeft aan dat met een elektrisch analogon (dus volgens de wetten van Ohm en Kirchhoff) dit ook opgelost kan worden
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