Comparaison du type et de la fréquence relative des principales arythmies cardiaques observées chez les chevaux en fonction de leurs performances en course : une étude radio-télémétrique

in Annales de Médecine Vétérinaire (1982), 126

La genese des accumulations calcaires vue sous l'angle de l'approche geomorpho-pedologique.

in Bulletin de la Société Belge de Géologie (1982), 91(1),

The dendritic organization of the human spinal cord: the dorsal horn.

in Neuroscience (1982), 7(9), 2057-87

The human spinal cord was studied with the Golgi method from 26 weeks gestational age onto adult life. Impregnated neurons were analyzed morphometrically by an adaptation of Sholl's concentric circle ... [more ▼]

The human spinal cord was studied with the Golgi method from 26 weeks gestational age onto adult life. Impregnated neurons were analyzed morphometrically by an adaptation of Sholl's concentric circle method in order to specify dendritic geometry, ramification richness and branching pattern. Neurons were classified according to Rexed's laminar scheme, identified on adjacent Nisslstained sections. The following features were found to be characteristic of the dorsal horn laminae. Lamina I is formed of a uniform population of large, poorly ramified neurons. Their main dendritic domaine is disk-shaped in the tangential plane with a mean diameter of about 800 micrometers. Orthogonal, spiny dendrites penetrating into lamina II are numerous even in adult material. Four cell types, all lying in the sagittal plane, are found in lamina II. (1) "Islet cells' (about 30% of impregnated neurons) have a rostrocaudal, cylindrical dendritic domaine with a long axis of +/- 600 micrometers, a few scattered spines and a richly branched axonal network, confined to the dendritic territory. They are more numerous in the central part of lamina II. A few islet cells have two axons. (2) "Filamentous cells' (about 20%), so called because of their multiple filiform, spiny dendrites, are vertico-sagittally oriented. Their soma is located in inner or outer lamina II, their dendritic tree, trapezoid of about 280 micrometers in height, being dorsal or ventral. The axon emits some collaterals in the vicinity of the dendritic tree, then it penetrates into lamina I or Lissauer's tract. (3) "Curly cells' (about 10%) have a complex, twisted, spine-rich dendritic tree. The dendritic domaine can be schematized by a sagittal disk with a diameter of about 200 micrometers, the cell body being eccentric. Curly cells are mainly found in outer lamina II. Their axon penetrates into lamina I or Lissauer's tract. (4) "Stellate cells' (about 40%) are multipolar neurons preferentially found in inner lamina II. They have straight, spine-poor dendrites, which cover a large (longest diameter ca. 500 micrometers), elliptical territory extending into laminae I and III. Their axon gives longitudinal collaterals to lamina II before penetrating deeply into laminae III and IV. Lamina III contains a mixed population of "antenna-like neurons' with a vertical, cone-shaped dendritic domaine and "radiate cells' characterized by a small, spherical territory. All lamina IV neurons are medium or large sized "antenna-like neurons' whose dorsally oriented, cone-shaped dendritic domaine may have a height of 1000 micrometers. It can be concluded that the dorsal horn of the human spinal cord has several distinct dendroarchitectonic features, different from those reported in animals. The possible functional implication of some dendritic features is examined and a laminar dendroarchitectonic scheme of the human cord is proposed as a morphological tool for future neuroanatomical and neuropathological studies. [less ▲]

Immunohistochemical evidence for cholecystokinin-like peptides in neuronal cell bodies of the rat spinal cord.

in Cell & Tissue Research (1982), 223(2), 463-7

Cholecystokinin-like immunoreactivity has been demonstrated by radioimmunoassay and immunocytochemistry in the spinal cord of various mammals, in particular in nerve fibers of the superficial layers of ... [more ▼]

Cholecystokinin-like immunoreactivity has been demonstrated by radioimmunoassay and immunocytochemistry in the spinal cord of various mammals, in particular in nerve fibers of the superficial layers of the posterior column, but had not been detected in neuronal cell bodies. We report immunohistochemical evidence for the presence of a group of cholecystokinin-containing neuronal cell bodies in the lumbar spinal cord of the rat. This group of cells is only visualized after direct injection of colchicine into the spinal cord and is located near the central canal in the intermedio-medial nucleus of area X of Rexed. [less ▲]

Réalisation de régulation thermique par microprocesseur pour le chauffage des bâtiments par énergies alternatives (projet Microsolar).

Report (1982)

The report concerns a research conducted in collaboration with SteriaLux (Grand Duchy of Luxemburg), with the aim of designing a micro-processor-drived controller for a solar building. The main control ... [more ▼]

The report concerns a research conducted in collaboration with SteriaLux (Grand Duchy of Luxemburg), with the aim of designing a micro-processor-drived controller for a solar building. The main control algorithms (eg PID, ...) were developped in Pascal language and tested on a pilot plant in the lab. At the end of the project, a solar installation was simulated on a microprocessor and the controller could be emulated on this virtual installation to test its performances. [less ▲]

Gedinnian and Siegenian lithostratigraphy and biostratigraphy of Belgium

Conference (1982)

Tweedimensionaal mathematisch model van de Westerschelde: Berekenings resultaten verdiepings programma 48/43 voet

Report (1982)

Studie op wiskundig model van de evolutie van de zeebodem in de omgeving van Zeebrugge

Report (1982)

Critical evaluation of serum uric acid levels in acute myocardial infarction.

in Clinica Chimica Acta (1982), 121(2), 147-157

Serial measurements of serum uric acid were performed on patients suffering from acute myocardial infarction. Nearly 80 percent of the cases demonstrated a fall in uric acid concentrations during the ... [more ▼]

Serial measurements of serum uric acid were performed on patients suffering from acute myocardial infarction. Nearly 80 percent of the cases demonstrated a fall in uric acid concentrations during the first two days of hospitalization and a subsequent return to initial levels within six to eight days. There was a relationship between the decrease in uric acid levels and the serum lactate dehydrogenase activity. No evidence could be found that male patients were hyperuricemic as compared to control subjects. However, female patients between 40 and 60 years of age demonstrated significantly higher uric acid levels than healthy women of corresponding ages, even after adjustment for diuretic use. [less ▲]