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
Lekeux, Pierre ; Henroteaux, Marc ;
in Annales de Médecine Vétérinaire (1982), 126Detailed reference viewed: 17 (3 ULg)
A new spore assemblage to correlate between the Breconian (British Isles) and the Gedinnian (Belgium)
; Streel, Maurice ; et al
in Annales de la Société Géologique de Belgique (1982), 105Detailed reference viewed: 13 (1 ULg)
La genese des accumulations calcaires vue sous l'angle de l'approche geomorpho-pedologique.
Bock, Laurent ;
in Bulletin de la Société Belge de Géologie (1982), 91(1),Detailed reference viewed: 14 (2 ULg)
Serum myoglobin determinations in the assessment of acute myocardial infarction.
Chapelle, Jean-Paul ; Albert, Adelin ; et al
in European Heart Journal (1982), 3(2), 122-129Detailed reference viewed: 13 (2 ULg)
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 ▲]Detailed reference viewed: 16 (0 ULg)
The dendritic organization of the human spinal cord: the motoneurons.
in Journal of Comparative Neurology (The) (1982), 211(3), 226-47
The dendritic organization of motoneurons was analyzed with the Golgi stain and a morphometric method in the immature and adult human spinal cord. Each motoneuronal column was found to be characterized by ... [more ▼]
The dendritic organization of motoneurons was analyzed with the Golgi stain and a morphometric method in the immature and adult human spinal cord. Each motoneuronal column was found to be characterized by a specific orientation of dendritic trees and by a distinct pattern of dendritic bundling. Ventromedial motoneurons have a pyramidal dendritic tree with numerous, short longitudinal branches and elongated dorsal branches. The latter form thick bundles oriented toward the ventral gray commissure. Longitudinal dendrites form a narrow-meshed dendritic plexus, containing abundant microbundles. Motoneurons of the ventromedial column have fewer primary dendrites and a lower ramification index than other motoneurons. Central motoneurons are predominantly oriented longitudinally. The meshes of the rostrocaudal dendritic plexus are looser and the microbundles are finer. Most transverse dendrites run laterally and participate in dendritic bundles which penetrate into the ventrolateral funiculus. The rostrocaudal dendritic domain of ventrolateral motoneurons is the largest dendritic domain of all spinal neurons. The longitudinal dendritic network contains fine microbundles and appears wide-meshed. Transverse dendrites form lateral or medial dendritic bundles depending upon the position of their perikaryon. Dorsolateral motoneurons differ from other motoneurons by their multipolar organization with a slight preponderance of dorsoventral dendritic spread. Rudimentary lateral dendrite bundles are restricted to marginal neurons. The longitudinal plexuses of motoneuronal dendrites and the verticotransverse dendrite bundles of the ventromedial column are well developed in the 26-28-week-old fetus. In contrast, the horizontotransverse dendrite bundles of central and ventrolateral motoneurons can only be recognized from 36 weeks on. The possible specific functions of the various types of dendrites bundles are examined and a laminar dendroarchitectonic schema of the human cord is proposed. [less ▲]Detailed reference viewed: 12 (0 ULg)
Immunohistochemical evidence for cholecystokinin-like peptides in neuronal cell bodies of the rat spinal cord.
; ; et al
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 ▲]Detailed reference viewed: 11 (1 ULg)
Mitteldevonische Sporen Aus Der Bohrung Schwarzbachtal 1.
Streel, Maurice ;
in Senckenbergiana Lethaea (1982), 63(4), 175-181Detailed reference viewed: 20 (0 ULg)
Réalisation de régulation thermique par microprocesseur pour le chauffage des bâtiments par énergies alternatives (projet Microsolar).
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 ▲]Detailed reference viewed: 7 (0 ULg)
Etude de l’érosion de la plage de Porticciolo (Corse)
Djenidi, Salim ; Lejeune, André ; Bay, Daniel
Report (1982)Detailed reference viewed: 4 (0 ULg)
Gedinnian and Siegenian lithostratigraphy and biostratigraphy of Belgium
; ; Steemans, Philippe
Conference (1982)Detailed reference viewed: 6 (0 ULg)
Gedinnian and Siegenian spore stratigraphy in Belgium
Conference (1982)Detailed reference viewed: 2 (1 ULg)
Tweedimensionaal mathematisch model van de Westerschelde: Berekenings resultaten verdiepings programma 48/43 voet
Djenidi, Salim ; Ronday, François ; Nihoul, Jacques
Report (1982)Detailed reference viewed: 3 (0 ULg)
Studie op wiskundig model van de evolutie van de zeebodem in de omgeving van Zeebrugge
Djenidi, Salim ; Ronday, François
Report (1982)Detailed reference viewed: 2 (0 ULg)
Critical evaluation of serum uric acid levels in acute myocardial infarction.
Chapelle, Jean-Paul ; Albert, Adelin ; et al
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 ▲]Detailed reference viewed: 20 (2 ULg)
On the use and computation of likelihood ratios in clinical chemistry.
in Clinical Chemistry (1982), 28(5), 1113-9
The clinical relevance of likelihood ratios (L-values) for revising the physician's diagnostic probabilities has been recognized. However, the calculation of L-values, particularly in the case of ... [more ▼]
The clinical relevance of likelihood ratios (L-values) for revising the physician's diagnostic probabilities has been recognized. However, the calculation of L-values, particularly in the case of quantitative or mixed quantitative-binary test results, raises problems that have not yet been addressed. Based on a very general assumption that yields a simple functional form for the likelihood ratio, a method is developed that allows such calculations regardless of the nature and the number of clinical laboratory tests to be interpreted simultaneously. Hence the notion of predictive value (posterior probability) is extended from binary or dichotomized tests to quantitative tests, and from univariate to multivariate clinical laboratory results. The simplicity and flexibility of this approach eliminates difficulties in computation arising from the addition of new data to an existing data base. It is hoped that this method will now allow L-values to be reported along with the original test results in daily laboratory practice. [less ▲]