Document Server@UHasselt
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Repository of the University of Hasselt containing publications in the fields of statistics, computer science, information strategies and material from the Institute for behavioural sciences.
Mostrando recursos 1 - 20 de 57
1.
Foot muscles preventing inversion traumatisms - VAN ZWIETEN, Koos Jaap; ROBEYNS, I.; VANDERSTEEN, Marjan; LIPPENS, Peter; MAHABIER, Roberto; LAMUR, Kenneth
Biomechanical analysis based on in vitro measurements of anatomical specimens of the foot, to evaluate theoretically the efficiency of foot muscles in the prevention of inversion traumatisms, during normal walking and running, as well as in sports, e.g. tennis.
2.
The extensor assembly of the finger in lower primates - VAN ZWIETEN, Koos Jaap
Definition of the order Primates, and sub-groups thereof, is intimately linked to phylogenetic
reconstruction. It is also beset by similar problems, notably those of identifying derived similarities and of avoiding circular reasoning. Inclusion of tree-shrews in definitions of living primates and inclusion of Plesiadapiformes in definitions of living and fossil primates are best avoided initially, as both are controversial. For various reasons, it is helpful to define living primates (excluding tree-shrews) first and then to consider as separate issues: (1) the relationships of tree-shrews, and (2) the inclusion of particular fossil groups in the order Primates. Previous definitions of living primates...
3.
Visualization of membrane rafts using a perylene monoimide derivative and fluorescence lifetime Imaging - Margineanu, Anca; Hotta, Jun-Ichi; Van der Auweraer, Mark; AMELOOT, Marcel; Stefan, Alina; Beljonne, David; Engelborghs, Yves; Herrmann, Andreas; Muellen, Klaus; De Schryver, Frans C.; Hofkens, Johan
A new membrane probe, based on the perylene imide chromophore, with excellent photophysical properties ( high absorption coefficient, quantum yield (QY) approximate to 1, high photostability) and excited in the visible domain is proposed for the study of membrane rafts. Visualization of separation between the liquid-ordered (Lo) and the liquid-disordered (Ld) phases can be achieved in artificial membranes by fluorescence lifetime imaging due to the different decay times of the membrane probe in the two phases. Rafts on micrometer-scale in cell membranes due to cellular activation can also be observed by this method. The decay time of the dye in...
4.
Exploring cDNA phage display for autoantibody profiling in the serum of multiple sclerosis patients - Optimization of the selection procedure - GOVARTS, Cindy; SOMERS, Klaartje; Hupperts, R.; STINISSEN, Piet; SOMERS, Veerle
We applied a cDNA phage display method called serological antigen selection (SAS) to identify immunogenic targets that evoke an autoantibody response in the serum of multiple sclerosis (MS) patients. This method involves the display of a cDNA expression library, in this study a MS brain library, on filamentous phage and subsequent selection using patient immunoglobulin G (IgG). To apply the SAS technology for autoantibodies in the serum of MS patients, an optimization was necessary to deplete cDNA products that encode IgG fragments derived from B cells present in the MS brain plaques. We describe a differential screening procedure in which...
5.
Changes observed over time in dentin developent after neonatal desensitisation - Seltman, Marion; Krage, Tracy; Zanger, K; STRUYS, Tom; LAMBRICHTS, Ivo; Raab, W
The neonatal application
of capsaicin has been known to produce a
selective desensitisation of nociceptive fibers in
a physiological system [1, 2]. Additionally, it
has been observed that a lack of functional
nociceptive fibers in the pulp has a detrimental
effect on dentine development after 120 days
[1]. The purpose of this study was to observe
dentine development in the neonatally
capsaicin-treated rat in a spectrum from 30 to
155 days of life.
6.
Metallothionein: a possible new marker for human dental pulp stem cells - STRUYS, Tom; Krage, Tracy; MARTENS, Wendy; THEUNISSEN, Evi; MOREELS, Marjan; LAMBRICHTS, Ivo
Human dental pulp stem cells (HDPSCs) is a term used for the remaining mesenchymal stem cell population in adult teeth. It has already been described that these cells exhibit odontogenic capacities when these cells are explanted into immunocompromised mice. They create a dentin-pulp like complex and in this way their use in tissue engineering and tooth regeneration seems very promising. However, there is still a lack of specific markers to identify this cell type. In this study, we investigated the immunoreactivity of HDPSCs for metallothionein (MT), a Cystein-rich, low molecular weight protein. MT has the capacity to bind both physiological...
9.
Risk of falling in patients with a recent fracture - van Helden, Svenhjalmar; Wyers, Caroline E.; Dagnelie, Pieter C.; van Dongen, Martien C.; Willems, Gittie; Brink, Peter R. G.; GEUSENS, Piet
Background: Patients with a history of a fracture have an increased risk for future fractures, even in short term. The aim of this study was to assess the number of patients with falls and to identify fall risk factors that predict the risk of falling in the first three months after a clinical fracture. Methods: Prospective observational study with 3 months of follow-up in a large European academic and regional hospital. In 277 consenting women and men aged >= 50 years and with no dementia and not receiving treatment for osteoporosis who presented to hospital with a clinical fracture, fall...
10.
Imaging of the hand, techniques and pathology: a pictorial essay - VAN ZWIETEN, Koos Jaap; Brys, P; Van Rietvelde, F; Oudenhoven, L; Vanhoenacker, F; Willemssens, F; Nievelstein, RA; d'Archambeau, O; Van Robaeys, F; Hogendoorn, P; Verstraete, K; Hauben, E; Robben, SG; Taminiau, A; Watt, I; Verstreken, F; Van Dyck, P; Shahabpour, M; Van Rijswijk, C; Ceuterick, P; VANDEVENNE, Jan; Mespreuve, M; Kingma, L; Kichouh, M; Beeres, FJ; Jager, T; Gielen, J; Marcelis, S; Maas, M; de Maeseneer, M; De Beuckeleer, L; Degryse, H; Van der Woude, HJ; Bloem, H; Dhondt, E; van Erkel, A; De Schepper, AM
12.
Foot muscles preventing inversion traumatisms - VAN ZWIETEN, Koos Jaap; ROBEYNS, Inge; VANDERSTEEN, Marjan; LIPPENS, Peter; MAHABIER, Roberto; LAMUR, Kenneth
Biomechanical analysis based on in vitro measurements of anatomical specimens of the foot, to evaluate theoretically the efficiency of foot muscles in the prevention of inversion traumatisms, during normal walking and running, as well as in sports, e.g. tennis.
15.
Filosofische en godsdienstige invloeden op de ontwikkeling van de geneeskunde - VAN ZWIETEN, Koos Jaap
In 1455 presenteerde Gutenberg zijn eerste gedrukte teksten te Frankfurt de boekdrukkunst had zijn intrede gedaan. Enkele decennia later werd, voor het eerst in de Lage Landen, een lijst van verboden boeken gepubliceerd. Hiermee ontstond een beweging die het openbaar maken van nieuwe vindingen belemmerde. Dergelijke trends zijn ook nu nog aanwijsbaar, als men bijvoorbeeld denkt aan pogingen om de informatiestromen van het Internet te beheersen.
In deze lezing wordt ingegaan op de ondervonden moeilijkheden bij het verspreiden van enkele nuchtere, nieuwe waarnemingen, die met name werden gedaan in de medische wetenschappen.
16.
Non-sagittal plane foot movement during late swing - VAN ZWIETEN, Koos Jaap; Biesmans, Steven; REYSKENS, Ann; ROBEYNS, Inge; VANDERSTEEN, Marjan; SCHMIDT, Klaus; LIPPENS, Peter; NARAIN, Faridi; MAHABIER, Roberto; Lamur, K. S.
18.
Autocrine/paracrine activation of the GABA(A) receptor inhibits the proliferation of neurogenic polysialylated neural cell adhesion molecule-positive (PSA-NCAM(+)) precursor cells from postnatal striatum - Nguyen, L; Malgrange, B; Breuskin, I; Bettendorff, L; Moonen, G; Belachew, S; RIGO, Jean-Michel
GABA and its type A receptor (GABA(A)R) are present in the immature CNS and may function as growth-regulatory signals during the development of embryonic neural precursor cells. In the present study, on the basis of their isopycnic properties in a buoyant density gradient, we developed an isolation procedure that allowed us to purify proliferative neural precursor cells from early postnatal rat striatum, which expressed the polysialylated form of the neural cell adhesion molecule (PSA-NCAM). These postnatal striatal PSA-NCAM(+) cells were shown to proliferate in the presence of epidermal growth factor (EGF) and formed spheres that preferentially generated neurons in vitro....
19.
The spinal dermal-sinus-like stalk - van Aalst, J.; BEULS, Emile; Cornips, E. M. J.; van Straaten, H. W. M.; Boselie, A. F. M.; Rijkers, K.; Weber, J. W.; Vles, J. S. H.
In this study, a disjunction anomaly mimicking the spinal congenital dermal sinus (DS) is described. This anomaly is referred to as the dermal-sinus-like stalk. Dissimilarities between a true dermal sinus and a dermal-sinus-like stalk are discussed. Three cases in which a spinal congenital dermal sinus was suspected are presented. A similar anatomical configuration, different from that of a dermal sinus, was found. All cases presented with a skin-covered dimple from which a solid tract was seen continuing intramedullary in two cases and intraspinally in one case. None of the patients presented with signs of infection or an associated dermoid-epidermoid tumor....
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