Etude des inclusions fluides des minéralisations Ba F (Zn Pb) du district métallogénique Sud de la Belgique

in Bulletin de Minéralogie (1984), 107

Note relative à l'histoire de la lecture wallonne au XVIIIe siècle

in Livre et l'estampe (Le) (1984), 30

Variabilité spatiale et possibilité d'extrapolation des extrêmes quotidiens de la température dans une région à relief accidenté. Le cas du sud-est de la Belgique

in Bulletin de la Société Géographique de Liège (1984), 20

Enseignant et enseignement assisté par ordinateur

in Cahiers de Clio (1984), 80

Influence de paramètres non infectieux et plus particulièrement du confort thermique sur la viabilité et la vitalité des porcelets en maternité

in Annales de Médecine Vétérinaire (1984), 128

Specific risks of anesthesia in patients with osteoarticular disease

in Acta Anaesthesiologica Belgica (1984), 35(2), 105-121

Anesthesia in patients with either treated or untreated osteoarttcular disorders poses a number of specific problems. The authors deal with risks resulting from mechanical deformities produced by these ... [more ▼]

Anesthesia in patients with either treated or untreated osteoarttcular disorders poses a number of specific problems. The authors deal with risks resulting from mechanical deformities produced by these disorders, by the involvement of a large number of functional systems, by changes in the immune status of such patients and by alterations in the reactions of arthritic patients resulting from prior or concurrent treatments. The authors emphasise the crucial points which require evaluation and observation before and during anesthesia [less ▲]

Caractéristiques culturelles de la population scolaire et curriculum réalisé dans quatre classes maternelles

in Scientia Paedagogica Experimentalis (1984), 31(1), 20-44

How should we proceed when a myocardial infarction is suspected

in Acta Clinica Belgica (1984), 39(6), 393-5

Spontaneous modification of the oxoglutarate translocator in vivo.

in European Journal of Biochemistry (1984), 142

L’enseignement assisté par ordinateur du latin et du français au L.A.S.L.A

in Micro-professeur (Le) (1984), 1(4), 1-18

Light-driven reversible transformation of chlorophyllide P696,684 into chlorophyllide P688,678 in illuminated etiolated bean leaves

in Photobiochemistry and Photobiology (1984), 8

Le matérialisme biologique de Lévi-Strauss

in Revue Philosophique de la France et de l'Etranger (1984)

Microgéographie et évolution industrielle de la Wallonie

in Revue Belge de Géographie (1984), (108-2), 93-113

This article aims to show microgeography's contribution to the analysis of industrial space in Wallonia. As far as we are concerned its contribution is twofold: in the first instance it helps to ... [more ▼]

This article aims to show microgeography's contribution to the analysis of industrial space in Wallonia. As far as we are concerned its contribution is twofold: in the first instance it helps to understand the reason for the different localisations and, secondly, it brings to the fore and explains the transformations in distribution. Furthermore, this work also makes it possible to carry out very detailed surveys on the scale of a commune, a town-district or even a road. When collating the existing research on Wallonia one is, inevitably, led to liken this region to other European economic entities industrialised in the 19th Century. Indeed, one finds simi-litaries such as the co-existence of old sites and new localisations as well as the presence of many abandoned sites. In addition one can bring to the fore processes which exist elsewhere, namely disindustrialisation of towns, exurbanisation of activities and new attempts ol reintegrate industry into urban environment. [less ▲]

Fetal calf serum-mediated inhibition of neurite growth from ciliary ganglion neurons in vitro

in Journal of Neuroscience Research (1984), 12(1), 29-39

Acute clinical benefits of a new inotropic agent ARL - 115 BS after IV an oral administration

in Giornale Italiano di Cardiologia (1984), 14

Dose-response relationship between plasma oxytocin and ACTH concentrations during oxytocin infusion in normal men

in Journal of Clinical Endocrinology and Metabolism (1984), 58

Contribution à l'étude pharmacognostique de la passiflore

in Journal de Pharmacie de Belgique (1984), 39(1), 15-22

Review of botanical, phytochemical and pharmacological data about Passiflora incarnata L. and two possible falsifications: Passiflora edulis SIMS and Passiflora caerulea L is presented.A reliable ... [more ▼]

Review of botanical, phytochemical and pharmacological data about Passiflora incarnata L. and two possible falsifications: Passiflora edulis SIMS and Passiflora caerulea L is presented.A reliable identification by TLC is also described. [less ▲]

Mode de logement et exigences climatiques des porcelets en période de post-sevrage

in Annales de Médecine Vétérinaire (1984), 128

Precise localization of antigens on follicular dendritic cells.

in Cell & Tissue Research (1984), 235(2), 267-74

Horse-spleen ferritin or bovine serum albumin conjugated to colloidal gold (BSA-gold) were injected subcutaneously in preimmunized mice. In draining lymph nodes both antigens were located in macrophages ... [more ▼]

Horse-spleen ferritin or bovine serum albumin conjugated to colloidal gold (BSA-gold) were injected subcutaneously in preimmunized mice. In draining lymph nodes both antigens were located in macrophages or between the cytoplasmic processes of follicular dendritic cells (FDC). Some of the antigens remained trapped on FDC until day 31 after injection. Simultaneous injection of both antigens showed that they were located between the infoldings of the same FDC. These cells are thus able to retain at least two different antigens on their surface. The peculiar arrangement of ferritin between the cytoplasmic infoldings suggests that this antigen is fixed on both cell membranes by specific antibodies. The trapped immune complexes could thus stabilize the FDC membrane system. The antigen retention requires the presence of specific antibodies since BSA-gold or ferritin injected without preimmunization were not found between FDC processes. Nonantigenic materials, such as colloidal gold or carbon particles, are not trapped by FDC, except when injected in large amounts. The antigens were trapped on the surface of FDC, however unfrequently in close contact with lymphocytes. FDC might protect lymphocytes against an excess of immune complexes and act as regulators of contacts between lymphocytes and immune complexes. [less ▲]

Distribution of different collagen types and fibronectin in neurofibromatosis tumours.

in Acta Pathologica, Microbiologica, et Immunologica Scandinavica. Section A-Pathology (1984), 92(5), 345-52

Collagen types I, III, IV and V and fibronectin were localized in neurofibromas from six patients with von Recklinghausen's neurofibromatosis (NF) using indirect immunofluorescence (IIF) and peroxidase ... [more ▼]

Collagen types I, III, IV and V and fibronectin were localized in neurofibromas from six patients with von Recklinghausen's neurofibromatosis (NF) using indirect immunofluorescence (IIF) and peroxidase anti-peroxidase (PAP) techniques. Type I and III collagens were abundantly and rather evenly present in the tumours and formed a continuous network, but were absent from the capillary endothelial walls and were sparse in the perineurium of the occasional nerve fascicles. The type III/type I + type III collagen ratio in neurofibromas varied from 17.4% to 37.3% when estimated with cyanogen bromide peptide analysis. Fibronectin was detected in areas where type I and III collagens were present but was most intensively stained in the vascular walls and perineurium. Type IV collagen was detected at the dermo-epidermal junction of the skin overlying the tumours, in the endothelial cells of the capillaries, the perineurium and endoneurium. Furthermore, in the tumourous stroma there was plenty of type IV collagen appearing as a discontinuous patchy pattern suggesting abundant basement membrane material associated with cells forming the tumours. Type V collagen distribution was very similar to that of type IV collagen. [less ▲]

Poly(styrene-divinylbenzene) as reversed phase adsorbent for the high-performance liquid chromatographic analysis of thiochrome derivatives of thiamine and phosphorylated esters

in Journal of Chromatography. A (1984), 295

Expression of different regional patterns of fibronectin immunoreactivity during mesoblast formation in the chick blastoderm

in Developmental Biology (1984), 101(2), 373-381

The appearance and distribution of the extracellular material glycoprotein, fibronectin, was investigated in gastrulating chick embryos using affinity-purified anti-human plasma fibronectin antibodies ... [more ▼]

The appearance and distribution of the extracellular material glycoprotein, fibronectin, was investigated in gastrulating chick embryos using affinity-purified anti-human plasma fibronectin antibodies. Preservation of tissue structure and immunoreactivity was carried out by ethanol/acetic acid fixation or by formaldehyde/glutaraldehyde fixation. Using the former fixation method, fibronectin immunoreactivity was detected (1) at the ventral surface of the upper layer or epiblast, mainly anterior and lateral to Hensen's node, in regions where middle-layer or mesoblast cells are not yet present, and (2) sparsely in extracellular spaces of the deep layer. Using the latter fixation method, fibronectin immunoreactivity was, moreover, found at the entire ventral surface of the upper layer, i.e., also at the epithelial-mesenchymal interface, where a basement membrane was previously described. At the light microscope level, we could not detect significant immunoreactivity in the middle layer. Treatment of sections of ethanol-fixed blastoderms with testicular hyaluronidase before immunostaining for fibronectin partially demasked the antigenic sites of this glycoprotein at the epithelial-mesenchymal interface. The present report indicates that the different regional patterns of fibronectin immunoreactivity in the basement membrane of the upper layer are spatially and temporally correlated with migration and positioning of mesoblast cells. These regional patterns are probably due to differences in the composition of fibronectin-associated material such as chondroitin sulfate A and/or C proteoglycans, and/or hyaluronate, before and after mesoblast expansion, rather than to differences in the distribution of fibronectin itself. In this respect, it is noteworthy that the chemical composition of the basement membrane of an epithelium changes as mesenchyme cells migrate over it. The results also favor the idea that fibronectin is a structural component of the whole basement membrane which is used as a substrate for migration of mesenchymal cells. [less ▲]

Etude de la texture des nodules océaniques en vue de leur utilisation comme catalyseurs

in Revue Roumaine de Chimie (1984), 29

L'interception des pluies par différents types de couverts forestiers.

in Bulletin de la Société Géographique de Liège (1984)

Bacterial wall peptidoglycan, DD-peptidases and beta-lactam antibiotics

in Scandinavian Journal of Infectious Diseases (1984), 42

Wall peptidoglycan expansion in bacteria rests upon a cytoplasmic D-Ala: D-Ala ligase (ADP) which catalyses synthesis of a D-Ala-D-Ala dipeptide (with accompanying hydrolysis of one molecule of ATP) and a ... [more ▼]

Wall peptidoglycan expansion in bacteria rests upon a cytoplasmic D-Ala: D-Ala ligase (ADP) which catalyses synthesis of a D-Ala-D-Ala dipeptide (with accompanying hydrolysis of one molecule of ATP) and a set of DD-peptidases which utilize this D-Ala-D-Ala dipeptide--once it has been translocated at the outer face of the plasma membrane as the C-terminal portion of a disaccharide peptide unit--as carbonyl donor for transpeptidation and carboxypeptidation reactions (without additional energy expenditure). Four DD-peptidases have been selected which differ from each other with respect to the effects that amino compounds exert on the fate and rate of consumption of a D-Ala-D-Ala terminated amide carbonyl donor analogue. They serve as models to understand the different mechanisms by which the DD-peptidases perform catalysis and show widely varying responses to the action of beta-lactams, from extreme sensitivity to very high resistance. [less ▲]

Détermination en routine de la teneur en carbonate de sols, roches et sédiments par chromatographie en phase gazeuse

in Pédologie (1984), XXXIV

Architecture du Proche Orient ancien et histoire de l'architecture

in Art&Fact (1984)

Sensitization of thiamine analysis by the peak compression technique

in HRC & CC. Journal of High Resolution Chromatography & Chromatography Communications (1984), 7

Agranulocytose médicamenteuse

in Médecine et Hygiène (1984), 42

L'agranulocytose médicamenteuse se caractérise par une diminution sévère et sélective des polynucléaires neutrophiles dans le sang circulant. C'est la réaction médicamenteuse conduisant le plus souvent à ... [more ▼]

L'agranulocytose médicamenteuse se caractérise par une diminution sévère et sélective des polynucléaires neutrophiles dans le sang circulant. C'est la réaction médicamenteuse conduisant le plus souvent à une issue fatale. Les drogues les plus souvent incriminées sont le pyramidon ou le dipyrone, les sulfamidés, les antithyroïdiens, les phénothiazines, la phénylbutazone et ses dérivés. La vitesse d'installation de la granulocytopénie varie selon le mode d'action de la drogue. Dans les agranulocytoses d'origine immunologique, une prise unique du médicament chez un sujet déjà sensibilisé peut aboutir à la disparition pratiqueement totale des granulocytes dans le sang circulant en l'espace de 6 à 10 heures. A la différence del'anémie aplastique sévère, l'agranulocytose est en principe réversible en l'espace d'une à trois semaines. Son traitement implique l'arrêt immédiat de la drogue, l'hospitalisation en milieu spécialisé, l'administration rapide d'une association d'antibiotiques bactéricides aux doses maximales, et l'isolement en chambre propre ou stérile. L'indication de transfusions de granulocytes doit être discutée. [less ▲]

Determination of thiamine and thiamine phosphates as thiochrome derivatives by reversed phase chromatography on polystyrene packing materials

in Chromatographia (1984), 18

Un logiciel de cartographie assistée par micro-ordinateur

in Cartographica (1984), 21(2 & 3), 93-100

Isolation of follicular dendritic cells from human tonsils and adenoids. II. Immunocytochemical characterization.

in European Journal of Immunology (1984), 14(3), 267-73

Follicular dendritic cells (FDC) are specialized cells found only within lymphoid follicles. They bind immune complexes and play a role in the presentation of antigen to follicular B cells and in the ... [more ▼]

Follicular dendritic cells (FDC) are specialized cells found only within lymphoid follicles. They bind immune complexes and play a role in the presentation of antigen to follicular B cells and in the generation of B cell memory. In the present report the isolation of FDC from human tonsils and adenoids is described. These isolated cells have an unusual spherical arrangement and enclose lymphocytes within extensions of their membranes. Their ultrastructural features are similar to those observed in situ. The reactivity of isolated FDC with a number of monoclonal antibodies was analyzed by immunofluorescence and by immunostaining (at the electron microscopic level) with colloidal gold. In keeping with the results of previous investigations on tissue sections IgM, IgG and IgA (but not IgD) can be detected on the surface of isolated FDC, as can C3b receptors and the FDC-associated antigen detected by monoclonal antibody R4/23. The immunoglobulins associated with FDC are mostly embedded in an electron-dense material. The majority of the lymphoid cells enclosed within the membrane extensions of FDC are of B cell type. These results suggest that isolated FDC may be suitable for further in vitro investigation of their role in the humoral immune response. [less ▲]

Trente ans d'urbanisme dans la Métropole Liégeoise

in Bulletin de la Société Géographique de Liège (1984), (20), 43-59

The Liege area is a pilot region as far as town and country planning in Belgium is concerned. Furthermore, most of the planning docu¬ments that determined its development were not those specified by ... [more ▼]

The Liege area is a pilot region as far as town and country planning in Belgium is concerned. Furthermore, most of the planning docu¬ments that determined its development were not those specified by general legislation but ones that preceded the legal mesures. When referring to the two main plans (1958 and 1966), we come to the conclusion that the entire town planning of Liege has been governed by three main ideas : traffic flow (roads), conversion of the economy and structuring of Liege and its suburbs. [less ▲]

THE PROCESS E+ E- $\to$ Q ANTI-Q GAMMA AND THE ELECTRIC CHARGE OF COLORED QUARKS

in Physics Letters B (1984), 140

L'estimation du volume de peuplements de hêtres au moyen de tarifs de cubage de peuplements.K

in Bulletin de la Société Royale Forestière de Belgique = Tijdschrift van de Koninklijke Belgische Bosbouwmaatschappij (1984), 91e année(6), 221-229

Various types of stand volume tables have been constructed for beech stands (Fagus sylvatica L.) in the southern part of Belgium. Volumes per hectare are calculated to 10 specified top girths. They are ... [more ▼]

Various types of stand volume tables have been constructed for beech stands (Fagus sylvatica L.) in the southern part of Belgium. Volumes per hectare are calculated to 10 specified top girths. They are based upon basal area and top height. [less ▲]

A rare complication of ophtalmic zona: spreading cerebral arteritis

in Acta Clinica Belgica (1984), 39(3), 159-162

Les institutions d'hébergement pour personnes handicapés mentales adultes exercent-elles une influence sur les capacités d'autonomie et d'intégration social de leurs résidents ?

in International Journal of Rehabilitation Research (1984), 7(4), 409-418

Gestion informatique de références bibliographiques personnelles : un outil pour le statisticien

in Biométrie-Praximétrie (1984), 24

Glipizide increases plasma insulin but not C-peptide level after a standardized breakfast in type 2 diabetic patients.

in European Journal of Clinical Pharmacology (1984), 26(4), 471-4

Peripheral blood glucose, plasma insulin and C-peptide levels were investigated after giving a standardized breakfast (500 kcal, 60 g carbohydrates) to 10 nonobese Type 2 diabetic patients previously ... [more ▼]

Peripheral blood glucose, plasma insulin and C-peptide levels were investigated after giving a standardized breakfast (500 kcal, 60 g carbohydrates) to 10 nonobese Type 2 diabetic patients previously treated by diet alone. Each patient received at random, at 1 week intervals, either 5 mg glipizide (meal + glipizide) or a placebo (meal alone) 30 min before breakfast. Basal values of blood glucose, plasma insulin and C-peptide were similar on both occasions. After meal + glipizide, the blood glucose increase was sharply limited whereas the rise in plasma insulin was steeper and reached twice as high a level. In contrast, the rise in plasma C-peptide was similar in both conditions. Consequently, the areas under the curves (0-300 min) showed a marked reduction in blood glucose after meal + glipizide (2289 +/- 149 versus 3101 +/- 169 mmol X min/1; 2p less than 0.001), associated with a significant increase in plasma insulin (14219 +/- 3261 versus 7591 +/- 1173 microU X min/ml; 2p less than 0.025) but no significant change in plasma C-peptide (342 +/- 45 versus 326 +/- 34 pmol X min/ml; N.S.). The insulin/C-peptide molar ratio was thus significantly increased after meal + glipizide (0.41 +/- 0.06 versus 0.23 +/- 0.04 at the 60th min; 2p less than 0.02). The dissociation between the responses of insulin and C-peptide suggests that a single dose of 5 mg glipizide in Type 2 diabetic subjects may enhance availability of peripheral insulin by extrapancreatic mechanism(s). This phenomenon may result in a higher circulating level of the hormone and therefore represent a further mode of action of sulphonylureas.(ABSTRACT TRUNCATED AT 250 WORDS) [less ▲]

Vascular factors in the pathogenesis of pre-eclampsia: recent findings

in Revue Française de Gynécologie et d'Obstétrique (1984), 79(4), 249-252

Normal, rigid and fibrotic utero-placental arteries are resistant to the action of circulating vaso-motor substances. In contrast, the persistence and the hyperplasia of smooth muscle fibres result in a ... [more ▼]

Normal, rigid and fibrotic utero-placental arteries are resistant to the action of circulating vaso-motor substances. In contrast, the persistence and the hyperplasia of smooth muscle fibres result in a reduced flow in the intervillous compartment and a sensitivity of the vessels to vaso-constrictor substances. These lesions, which develop after the twentieth week, provide the necessary conditions for the subsequent development of the characteristic vicious cycles of eclampsia. [less ▲]

Blood plasma LH and testosterone concentration in anabolized bulls

in Animal Production (1984), 39

Modèles expérimentaux pour l'étude des infections virales du système nerveux

in Bulletin et Mémoires de l'Académie Royale de Médecine de Belgique (1984), 139(3), 218-226

Enseignement par ordinateur du latin et du français au L.A.S.L.A.

in Cahiers de Clio (1984), 80

A propos des substances toxiques recherchées dans les poudres à éternuer

in Journal de Pharmacie de Belgique (1984), 39(4), 233-237

Poisoning due to sneezing powders made it necessary to control commercialized samples to detect possible presence of toxic products such as poisonous plants ( Veratrum sp., Helleborus viridis, Quillaja sp ... [more ▼]

Poisoning due to sneezing powders made it necessary to control commercialized samples to detect possible presence of toxic products such as poisonous plants ( Veratrum sp., Helleborus viridis, Quillaja sp....) or synthetic chemicals (benzidine, dianisidine, o-nitrobenzaldehyde). The authors give a summary of analytical and toxicological data. results of experiments on samples collected in belgium are also provided. [less ▲]

Erlebald (+ 1193), gardien des reliques de Stavelot-Malmedy

in Moyen Age (Le) (1984), XC

La personnalité d'Erlebald, frère de Wibald, pour la première fois mise en évidence dans le soin apporté aux reliques et aux oeuvres d'art de l'abbaye de Stavelot-Malmedy

Etude de la cinétique de libération "in vitro" de la nitroglycérine à partir de quelques systèmes d'administration percutanée

in Journal de Pharmacie de Belgique (1984), 39

Le culte des reliques aux XIe et XIIe siècles sur le domaine abbatial de Stavelot-Malmedy

in Actes du Congrès de la Fédération Archéologique & Historique de Belgique (1984)

Metabolic alterations after a two-hour nocturnal interruption of a continuous subcutaneous insulin infusion.

in Diabetes Care (1984), 7(4), 338-42

In order to evaluate the metabolic consequences of a 2-h nocturnal interruption of continuous subcutaneous insulin infusion (CSII), seven insulin-dependent diabetic patients without residual insulin ... [more ▼]

In order to evaluate the metabolic consequences of a 2-h nocturnal interruption of continuous subcutaneous insulin infusion (CSII), seven insulin-dependent diabetic patients without residual insulin secretion were investigated. The changes in blood glucose, plasma free insulin, glucagon, free fatty acids, and 3-hydroxybutyrate (3 OH-B) concentrations have been compared during two randomized tests carried out either during the normal functioning of a Mill-Hill pump from 10 p.m. to 8 a.m. (1.00 +/- 0.06 U insulin/h, keeping adequate metabolic control) or during the same conditions but with a deliberate arrest of the pump between 11 p.m. and 1 a.m. Considering the value recorded at 11 p.m. as reference, interruption of the insulin infusion resulted in: (1) a rapid (already significant after 1 h) and sustained (maximal fall: --12.5 +/- 2.5 mU/L at 3 a.m.) decrease in plasma free insulin; (2) a delayed (significant after 4 h) and linear rise in blood glucose (maximal increase: + 4.0 +/- 1.3 mmol/L at 5 a.m.); (3) an early (significant at midnight) and prolonged rise in plasma free fatty acids (+ 387 +/- 148 mumol/L at 3 a.m.); (4) a delayed (significant after 3 h) and sustained increase in plasma 3 OH-B (+ 347 +/- 88 mumol/L at 3 a.m.); and (5) no significant changes in plasma glucagon. Thus, a 2-h interruption of CSII in resting nocturnal conditions is sufficient to induce significant, delayed, and sustained metabolic alterations in C-peptide-negative patients despite good baseline blood glucose control. Resetting the pump at its basal rate is insufficient to quickly restore adequate circulating insulin levels and effectively counteract the metabolic disturbances. The efficacy of a bolus insulin injection in these conditions should be evaluated. [less ▲]

Texture of manganese nodules used as a catalyst for demetalizing and desulfurizing petroleum residua

in Colloids and Surfaces A : Physicochemical and Engineering Aspects (1984), 11

Epitopes of BLV glycoprotein gp51 recognized by sera infected cattle and sheep

in Leukemia Research (1984), 8