Utilisation du soufre en agriculture

in Sulphur Institut (1982, March 23)

Annual Efficiency of Separated Systems for Heating and Domestic Hot Water Needs in dwellings

Conference (1982, March)

Any designer (architect, consulting engineer...), who must choose the technical solution of a heating installation in a house, is always confronted with the same alternatives: combined production of both ... [more ▼]

Any designer (architect, consulting engineer...), who must choose the technical solution of a heating installation in a house, is always confronted with the same alternatives: combined production of both hot water for heating needs and domestic hot water, assured by a combined boiler or a boiler producing only heating hot water and a separate water heater (instantaneous or with storage) for domestic hot water needs. The objective of this present study is to give the designer simple graphs which become an easy way to assume, with a good accuracy, the “global annual efficiency” of each solution, and allow a sensitivity study of efficiency to main parameters of each system. [less ▲]

Workshop on computerised land use data

Scientific conference (1982, March)

Le présent document a pour but de faire le point de la situation à Gembloux (Belgique) en ce qui concerne le traitement par ordinateur de données relatives à l'aménagement du territoire. Il comprend ... [more ▼]

Le présent document a pour but de faire le point de la situation à Gembloux (Belgique) en ce qui concerne le traitement par ordinateur de données relatives à l'aménagement du territoire. Il comprend quelques informations définissant le cadre général (paragraphe 2) et les différentes orientations qui sont suivies dans ce domaine : banque de données pédologiques (paragraphe 3), banque de données phytosociologiques (paragraphe 4), étude de paysages (paragraphe 5) et inventaire forestier (paragraphe 6). Ces informations sont suivies de quelques conclusions (paragraphe 7). [less ▲]

Prévisions de fumure

in Fumure et protection phytosanitaire des céréales (1982, February)

Principaux résultats d'essais

in Fumure et protection phytosanitaire des céréales (1982, February)

Sur la nature et les propriétés des intermédiaires P-,695 dans la photoréduction de la protochlorophyllide en chlorophyllide

Doctoral thesis (1982)

Hormonal and metabolic adaptation to protein-supplemented fasting in obese subjects.

in International Journal of Obesity & Related Metabolic Disorders (1982), 6(2), 165-74

Thirty hospitalized, severely obese patients (40 +/- 2 yr, 82 +/- 4 percent weight excess) were submitted to a 13-d protein-supplemented fast (PSF) with 70 g milk proteins/d (1.26 MJ or 300 kcal). The ... [more ▼]

Thirty hospitalized, severely obese patients (40 +/- 2 yr, 82 +/- 4 percent weight excess) were submitted to a 13-d protein-supplemented fast (PSF) with 70 g milk proteins/d (1.26 MJ or 300 kcal). The mean weight loss during PSF was 5.4 +/- 0.3 kg corresponding to 422 +/- 39 g/d. Comparison of the urinary nitrogen excretion with daily protein intake revealed that the nitrogen balance was equilibrated during PSF. Blood glucose decreased moderately but significantly during the whole PSF period whereas plasma insulin was only reduced during the first 9 d and tended to rise thereafter. Plasma FFA increased rapidly and remained elevated until the end of the study (+ 60 per cent); serum total cholesterol and plasma triglycerides showed a 26 and a 35 per cent decrease respectively. Basal plasma glucagon was slightly increased. Due to the low sodium intake (42 mmol/d) urinary sodium excretion dropped rapidly. Simultaneously both systolic (-13 mmHg) and diastolic (-7 mmHg) arterial blood pressure decreased significantly. The biological tolerance was good: metabolic acidosis was prevented with sodium bicarbonate, excessive rise in serum uric acid was corrected with allopurinol and a marked decrease in serum potassium was avoided with an appropriate dose of spironolactone. Twenty-six patients could be weighed 6 to 15 months after PSF: 12 showed a further weight reduction (6.6 +/- 1.6 kg) and seven a discrete weight gain (1.0 +/- 0.4 kg). Thus, PSF was well accepted and was profitable in 19 out of our 30 patients. It should be restricted to cases of severe and refractory obesity and performed under careful medical supervision. [less ▲]

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

in Clinica Chimica Acta (1982), 121(2), 147-57

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 ▲]

Serum myoglobin determinations in the assessment of acute myocardial infarction.

in European Heart Journal (1982), 3(2), 122-9

The sodium-potassium cotransport in red blood celles of hypertensive patients: advantages and limits

in Belgian G.D.R. Medical Week, Ministry of Public Health and Family (1982)

Established essential HTA is considered to result from the influence of both heredity and environment. Among the environmental factors, dietetary sodium has been proposed to play an important role ... [more ▼]

Established essential HTA is considered to result from the influence of both heredity and environment. Among the environmental factors, dietetary sodium has been proposed to play an important role inducing an increase in peripheral vascular resistance. The primary abnormality in essential HTA could consist in a genetically transmitted membrane defect impairing the cellular mechanisms which normally compensate a sodium load. The analysis of this defect implies more certainly elucidation of the effects of sodium ions at the blood vessel musculature level. But smooth muscle cells are unfortunately rather inaccessible. Yet it would be of great interest to dispose of a simple laboratory test to detect primary HTA. Therefore, on account of their availability and ease of manipulation, blood cells have been studied and already twenty years ago, LOSSE (12) recorded an increase of the intracellular sodium concentration in erythrocytes of hypertensive patients. Since then, different groups described different abnormalities' in the movement of ions across the blood cells membranes. Indeed modifications of the passive permeability (11, 12, 13), the sodium potassium pump (1, 5, 14), the sodium lithium countertransport (2, 7, 18) and the sodium potassium cotransport (3, 8, 9,10) have been successively demonstrated. GARAY et al. (9,10,11) observed a decrease in this last transport system for essential hypertensives and a high proportion of their young offspring. Conversely for normotensive patients, without a family history of HTA or in secondary hypertensives, a normal cotransport was found. The finding of an abnormal cotransport in a young normotensive may thus elicit preventive measures such as appropriate sodium diet, prevention of excessive weight gain, clinical follow up during oral contraception or pregnancy. The first observations showed a very clearcut difference between the two populations. However, many authors using the same test procedure, found a large overlap suggesting the measurement of this cotransport will not prove useful to discriminate primary HTA. However, the methodology was not always the same and difference could also arise from the definition of normal control groups which needed to be carefully selected. Thus in this study, we would evaluate the modification of the Na+ K+ cotransport in primary and secondary HTA, using strictly the experimental methodology originally described by GARAY et al. (9, 10). Afterwards, it would be interesting to study the effect of obesity, diabetes and the menstrual cycles on this transport system. [less ▲]