Browsing
     by title


0-9 A B C D E F G H I J K L M N O P Q R S T U V W X Y Z

or enter first few letters:   
OK
Peer Reviewed
See detailA comparison of the Fe II spectrum of three B[e] stars : HD51585, HD45677 and HD50138
Houziaux, L; Quinet, Pascal ULg

in Eta Carinae and Other Mysterious Stars. The Hidden Opportunities of Emission Spectroscopy (2001)

Detailed reference viewed: 20 (2 ULg)
Full Text
Peer Reviewed
See detailComparison of the Full Outline of UnResponsiveness and Glasgow Liege Scale/Glasgow Coma Scale in an Intensive Care Unit Population.
Bruno, Marie-Aurélie ULg; LEDOUX, Didier ULg; LAMBERMONT, Bernard ULg et al

in Neurocritical Care (2011), 15(3), 447-53

BACKGROUND: The Full Outline of UnResponsiveness (FOUR) has been proposed as an alternative for the Glasgow Coma Scale (GCS)/Glasgow Liege Scale (GLS) in the evaluation of consciousness in severely brain ... [more ▼]

BACKGROUND: The Full Outline of UnResponsiveness (FOUR) has been proposed as an alternative for the Glasgow Coma Scale (GCS)/Glasgow Liege Scale (GLS) in the evaluation of consciousness in severely brain-damaged patients. We compared the FOUR and GLS/GCS in intensive care unit patients who were admitted in a comatose state. METHODS: FOUR and GLS evaluations were performed in randomized order in 176 acutely (<1 month) brain-damaged patients. GLS scores were transformed in GCS scores by removing the GLS brainstem component. Inter-rater agreement was assessed in 20% of the studied population (N = 35). A logistic regression analysis adjusted for age, and etiology was performed to assess the link between the studied scores and the outcome 3 months after injury (N = 136). RESULTS: GLS/GCS verbal component was scored 1 in 146 patients, among these 131 were intubated. We found that the inter-rater reliability was good for the FOUR score, the GLS/GCS. FOUR, GLS/GCS total scores predicted functional outcome with and without adjustment for age and etiology. 71 patients were considered as being in a vegetative/unresponsive state based on the GLS/GCS. The FOUR score identified 8 of these 71 patients as being minimally conscious given that these patients showed visual pursuit. CONCLUSIONS: The FOUR score is a valid tool with good inter-rater reliability that is comparable to the GLS/GCS in predicting outcome. It offers the advantage to be performable in intubated patients and to identify non-verbal signs of consciousness by assessing visual pursuit, and hence minimal signs of consciousness (11% in this study), not assessed by GLS/GCS scales. [less ▲]

Detailed reference viewed: 52 (4 ULg)
Full Text
Peer Reviewed
See detailComparison of the glucooligosaccharide profiles produced from maltose by two different transglucosidases from Aspergillus niger
Goffin, Dorothée ULg; Wathelet, Bernard ULg; Blecker, Christophe ULg et al

in Biotechnologie, Agronomie, Société et Environnement = Biotechnology, Agronomy, Society and Environment [=BASE] (2010)

Prebiotic isomaltooligosaccharide preparations contain α-D-glucooligosaccharides and their structure is the key factor for their prebiotic potential. The transglucosylation selectivity is known to depend ... [more ▼]

Prebiotic isomaltooligosaccharide preparations contain α-D-glucooligosaccharides and their structure is the key factor for their prebiotic potential. The transglucosylation selectivity is known to depend on the enzyme specificity and moreover, maltose and -glucooligosaccharides can actually act as both glucosyl donor and acceptor in the reaction. Thus, two commercial enzymes, a glycosyl-tranferase and an -glucosidase, were tested alone and in combination on pure maltose to study their specificities and the IMO profile obtained. The reactions were monitored using a step-forward AEC-PAD analytical method which permitted to detect and resolve new unknown IMO. Structural determination of unknown IMO was attempt using their retention times and relative abundance. As a general rule, the -glucosidase has a more expressed hydrolyzing activity leading to products containing less residual digestible -(1-4) linkages such as isomaltose, isomaltotriose, isomaltotetraose, kojibiose and nigerose while the glucosyl-transferase produces important amount of panose. Finally, the combination of the two enzymes leaded to an intermediate IMO profile. IMO syrups composition was thus proved to be dependant on the specificity of the transglucosylating enzyme so that products profiles can be designed using different enzymes and in different proportion. [less ▲]

Detailed reference viewed: 75 (35 ULg)
Full Text
Peer Reviewed
See detailA comparison of the haemodynamic effects of isoflurane and halothane anaesthesia in horses
Raisis, Anthea L; Young, L. E.; Blissitt, K. J. et al

in Equine Veterinary Journal (2000), 32(4), 318-326

The purpose of this study was to compare the haemodynamic effects of equipotent isoflurane and halothane anaesthesia. Six adult horses were investigated on two separate occasions at least 4 weeks apart ... [more ▼]

The purpose of this study was to compare the haemodynamic effects of equipotent isoflurane and halothane anaesthesia. Six adult horses were investigated on two separate occasions at least 4 weeks apart. On both occasions anaesthesia was induced by ketamine 2.2 mg/kg bwt given 5 min after i.v. administration 100 microg/kg bwt romifidine. Anaesthesia was maintained either by halothane or isoflurane (end-tidal concentrations 0.9-1.0% and 1.3-1.4%, respectively). Horses were ventilated by intermittent positive pressure to maintain PaCO2 between 40-50 mmHg. Haemodynamic variables were measured using catheter-mounted strain gauge transducers in the left and right ventricle, aorta, and right atrium. Cardiac output (CO), velocity time integral (VTI), maximal aortic blood flow velocity (Vmax) and acceleration (dv/dt(max)), left ventricular pre-ejection period (PEP) and ejection time (ET) were measured from aortic blood flow velocity waveforms obtained by transoesophageal Doppler echocardiography. Flow velocity waveforms were recorded from the femoral arteries and veins using low pulse repetition frequency Doppler ultrasound. Time-averaged mean velocity (TAV), velocity of component a (TaVa), velocity of component b (TaVb) and early diastolic deceleration slope (EDDS) were measured. Pulsatility index (PI) and volumetric flow were calculated. Microvascular blood flow was measured in the left and right semimembranosus muscles by laser Doppler flowmetry. Maximal rate of rise of LV pressure (LVdp/dt(max)), CO, Vmax, dv/dt(max), ET, VTI were significantly higher at all time points during isoflurane anaesthesia compared to halothane anaesthesia. Pre-ejection period and diastolic aortic blood pressure were significantly less throughout isoflurane anaesthesia compared to halothane. Isoflurane anaesthesia was associated with significantly lower systemic vascular resistance than halothane anaesthesia. Femoral arterial and venous blood flow were significantly higher and EDDS and PI were significantly lower during isoflurane anaesthesia compared to halothane anaesthesia. In addition during both halothane and isoflurane anaesthesia, femoral arterial flow was higher and EDDS and PI lower in the left (dependent) artery compared to the right (nondependent) artery. This study supports previous work demonstrating improved left ventricular systolic function during isoflurane compared to halothane anaesthesia. This improvement was still evident after premedication with a potent-long acting alpha2-adrenoreceptor agonist, romifidine, and induction of anaesthesia with ketamine. There was also evidence of increased hindlimb blood flow during isoflurane anaesthesia. However, there were differences observed in flow between the left and right hindlimb during maintenance of anaesthesia with each agent, suggesting that there were differences in regional perfusion in anaesthetised horses caused by factors unrelated to agents administered [less ▲]

Detailed reference viewed: 28 (1 ULg)
Full Text
Peer Reviewed
See detailComparison of the Heart-type fatty acid-binding protein (H-FABP) with the high sensitive cardiac troponin T in healthy runners
LE GOFF, Caroline ULg; MELON, Pierre ULg; BREVERS, Eric ULg et al

in Book of abstracts of 18th Annual Congress of the ECSS (2013, June)

Background: Heart-type fatty acid-binding protein (H-FABP) is a low molecular weight protein involved in the intracellular uptake and buffering of long chain fatty in the myocardium. It is an early marker ... [more ▼]

Background: Heart-type fatty acid-binding protein (H-FABP) is a low molecular weight protein involved in the intracellular uptake and buffering of long chain fatty in the myocardium. It is an early marker for acute coronary syndrome. Troponin T (TnT) is a component of the contractile apparatus of the striated musculature. Cardiac TnT is a cardio-specific, highly sensitive marker for myocardial damage. The aim of our study was to compare the results obtained with the H-FABP and the highly sensitive cardiac troponins (hsTnT) and to test their cardiospecificity in healthy runners. Methods: Twenty three runners (marathon) were enrolled. We drowned samples at three times: just before (T0), just after (T1), and three hours after the end of the race (T3). H-FABP was determined with a Randox immunoturbidimetric assay and hs-TnT with a Roche electrochemiluminescence immunoassay, both on Cobas 6000. A linear regression was calculated to observe if there is any correlation between the two biomarkers. Values above the 95th percentile for H-FABP (2.5ng/mL) and the 99th percentile for hsTnT (14ng/L) were considered as positive. Results: At T0, none of the subjects were positive for hsTnT but 35% were positive for H-FABP; at T1, 83% for hsTnT and 100% for H-FABP; at T3, 83% for hsTnT and 96% for H-FABP. At T0, the regression equation was H-FABP T0 = 3.9454 – 0.1001 x hsTnT T0; at T1: H-FABP T1 = 51.838 – 1.7026 x hsTnT T1; at T3: H-FABP T3 = 47.977 – 1.6193 x hsTnT T3. No correlation was observed between the two biomarkers at the different time. Conclusions: We observed a significant increase of H-FABP and hsTnT in runners. These markers are independent to each other. These values could biologically correspond to a heart ischemia. However, we suggested that exercise-induced cardiac hsTnT and H-FABP release is not a marker of exercise-induced pathology but likely a physiologic response to effort or an exercise-induced cardiac remodelling. [less ▲]

Detailed reference viewed: 47 (2 ULg)
Full Text
Peer Reviewed
See detailComparison of the Heart-type fatty acid-binding protein (H-FABP) with the high sensitive cardiac troponin T in healthy runners
LE GOFF, Caroline ULg; Kaux, Jean-François ULg; BREVERS, Eric ULg et al

in Biochimica Clinica (2013, May), 37(SS), 544

Background: Heart-type fatty acid-binding protein (H-FABP) is a low molecular weight protein involved in the intracellular uptake and buffering of long chain fatty in the myocardium. It is an early marker ... [more ▼]

Background: Heart-type fatty acid-binding protein (H-FABP) is a low molecular weight protein involved in the intracellular uptake and buffering of long chain fatty in the myocardium. It is an early marker for acute coronary syndrome. Troponin T (TnT) is a component of the contractile apparatus of the striated musculature. Cardiac TnT is a cardio-specific, highly sensitive marker for myocardial damage. The aim of our study was to compare the results obtained with the H-FABP and the highly sensitive cardiac troponins (hsTnT) and to test their cardiospecificity in healthy runners. Methods: Twenty three runners (marathon) were enrolled. We drowned samples at three times: just before (T0), just after (T1), and three hours after the end of the race (T3). H-FABP was determined with a Randox immunoturbidimetric assay and hs-TnT with a Roche electrochemiluminescence immunoassay, both on Cobas 6000. A linear regression was calculated to observe if there is any correlation between the two biomarkers. Values above the 95th percentile for H-FABP (2.5ng/mL) and the 99th percentile for hsTnT (14ng/L) were considered as positive. Results: At T0, none of the subjects were positive for hsTnT but 35% were positive for H-FABP; at T1, 83% for hsTnT and 100% for H-FABP; at T3, 83% for hsTnT and 96% for H-FABP. At T0, the regression equation was H-FABP T0 = 3.9454 – 0.1001 x hsTnT T0; at T1: H-FABP T1 = 51.838 – 1.7026 x hsTnT T1; at T3: H-FABP T3 = 47.977 – 1.6193 x hsTnT T3. No correlation was observed between the two biomarkers at the different time. Conclusions: We observed a significant increase of H-FABP and hsTnT in runners. These markers are independent to each other. These values could biologically correspond to a heart ischemia. However, we suggested that exercise-induced cardiac hsTnT and H-FABP release is not a marker of exercise-induced pathology but likely a physiologic response to effort or an exercise-induced cardiac remodelling. [less ▲]

Detailed reference viewed: 24 (0 ULg)
Full Text
Peer Reviewed
See detailComparison of the Huygens mission and the SM2 test flight for Huygens attitude reconstruction
Sarlette, Alain ULg; Perez-Ayucar, Miguel; Witasse, Olivier et al

Conference (2005, June)

The Huygens probe is the ESA’s main contribution to the Cassini/Huygens mission, carried out jointly by NASA, ESA and ASI. It was designed to descend into the atmosphere of Titan on January 14, 2005 ... [more ▼]

The Huygens probe is the ESA’s main contribution to the Cassini/Huygens mission, carried out jointly by NASA, ESA and ASI. It was designed to descend into the atmosphere of Titan on January 14, 2005, providing surface images and scientific data to study the ground and the atmosphere of Saturn’s largest moon. In the framework of the reconstruction of the probe’s motions during the descent based on the engineering data, additional information was needed to investigate the attitude and an anomaly in the spin direction. Two years before the launch of the Cassini/Huygens spacecraft, in May 1995, a test probe called SM2 (Special Model 2) was dropped in the Earth’s atmosphere from the balloon launch site of Kiruna, Sweden, to verify proper operation during the descent and especially the parachute deployment sequence. It featured a flight standard structure and DCSS (Descent Control SubSystem) and, unlike the Huygens probe, was fully instrumented to monitor the orientation of the descent module (3-axes accelerometers and gyroscopes). We describe how a comparison between the SM2 test flight and the Huygens mission provides some useful information about the Huygens probe’s behavior. After discussing the spin direction, we focus on the tip and tilt. The final conclusions of this comparison at the time of writing are still of qualitative nature, but the results are a starting point for better interpretation of the engineering data in terms of attitude to derive the probe’s orientation. [less ▲]

Detailed reference viewed: 40 (0 ULg)
Peer Reviewed
See detailComparison of the interactions of a specific neurotoxin (alpha-bungarotoxin) with the acetylcholine receptor in Torpedo californica and Electrophorus electricus membrane preparations.
Leprince, Pierre ULg; Noble, R. L.; Hess, G. P.

in Biochemistry (1981), 20(19), 5565-70

alpha-Bungarotoxin, a snake neurotoxin, binds irreversibly and specifically to the acetylcholine receptor isolated from the electroplax of Electrophorus electricus and Torpedo species and has been an ... [more ▼]

alpha-Bungarotoxin, a snake neurotoxin, binds irreversibly and specifically to the acetylcholine receptor isolated from the electroplax of Electrophorus electricus and Torpedo species and has been an important tool in the study of the receptor-ligand binding mechanism. Two distinct kinetic processes have been observed in studies with membranes from E. electricus. A minimum mechanism for the toxin reaction involves (i) the reversible binding of two toxin molecules to the receptor prior to the irreversible formation of toxin receptor complexes and (ii) a toxin-induced conformational change of the receptor which leads to an increase in the affinity of the receptor binding sites for toxin [Hess, G. P., Bulger, J. E., Fu, J.-j. L., Hindy, E. F., & Silberstein, R. J. (1975) Biochem. Biophys. Res. Commun. 64, 1018-1027]. Only one process has been detected in Torpedo membranes. Here, we determine whether the receptors in Torpedo californica and E. electricus membranes have different properties or whether the measurements and their interpretation were responsible for the different results. Two methods which are frequently used in binding studies to separate free and bound toxin, a CM-52 cellulose minicolumn assay and DE-81 filter disk assay, have been compared. The results obtained indicate that the interaction of toxin with receptor from T. californica is similar to that observed with receptor from E. electricus. The apparent differences which have been reported in the literature are shown to have arisen from the design of the experiments in which T. californica membranes were used. [less ▲]

Detailed reference viewed: 11 (0 ULg)
Full Text
Peer Reviewed
See detailComparison of the Internal Energy Distributions of Ions Produced by Different Electrospray Sources
Collette, Caroline ULg; Drahos, Laszlo; De Pauw, Edwin ULg et al

in Rapid Communications in Mass Spectrometry : RCM (1998), 12

The internal energies of the emitted ions can be modulated in an electrospray source through different experimental conditions. However, the fragmentation pattern depends also on conditions that cannot be ... [more ▼]

The internal energies of the emitted ions can be modulated in an electrospray source through different experimental conditions. However, the fragmentation pattern depends also on conditions that cannot be controlled by the operator. These differences make difficult the comparison of the electrospray mass spectra obtained with different mass spectrometers. A method for the calibration of the internal energies of ions produced by an electrospray source has been presented previously to study the influence of experimental conditions on the internal energies of the ions. In this work, new results were obtained with modified values of fragmentation energy taking into account the kinetic shift of thermometer ions. [less ▲]

Detailed reference viewed: 20 (2 ULg)
Full Text
Peer Reviewed
See detailComparison of the Iv Pharmacokinetics in Sheep of Miconazole-Cyclodextrin Solutions and a Micellar Solution
Piel, Géraldine ULg; Evrard, Brigitte ULg; Van Hees, Thierry ULg et al

in International Journal of Pharmaceutics (1999), 180(1), 41-5

The pharmacokinetics of miconazole were studied after intravenous administration to six sheep (4 mg/kg) of three aqueous solutions: a marketed micellar solution containing polyoxyl-35 castor oil (Daktarin ... [more ▼]

The pharmacokinetics of miconazole were studied after intravenous administration to six sheep (4 mg/kg) of three aqueous solutions: a marketed micellar solution containing polyoxyl-35 castor oil (Daktarin IV(R)) was compared with two solutions both containing 50 mM lactic acid and a cyclodextrin derivative (100 mM HP-betaCD or 50 mM SBE7-betaCD). The aim of this work was to demonstrate that these cyclodextrin derivatives (CDs) have no effect on the pharmacokinetics of miconazole by comparison with the micellar solution. The plasma concentration time curves have shown that there is no significant difference between the three solutions. [less ▲]

Detailed reference viewed: 12 (2 ULg)
See detailComparison of the magnetic susceptibility of Belgian and Canadian Frasnian carbonate platforms: Implications for stratigraphic correlation in carbonate strata
Da Silva, Anne-Christine ULg; Weissenberger, John; Potma, KEn et al

in Abstract book - 22th IAS meeting, Opatija, Portugal (2003)

Detailed reference viewed: 6 (1 ULg)
Full Text
See detailComparison of the Na and N2+ flashes at Twilight and Dawn.
Swings, Polydore ULg; Nicolet, M.

in Astrophysical Journal (1949), 109

Detailed reference viewed: 9 (0 ULg)
Full Text
See detailComparison of the O2-evolving complexes of oscillatoria chalybea with that of different greening stages of higher plant chloroplasts: an amperometric and mass spectrometric study
Bader, K. P.; Franck, Fabrice ULg; Schmid, G. H.

in Argyroudi-Akoyunoglou, J. H. (Ed.) Regulation of Chloroplast Biogenesis (1992)

Detailed reference viewed: 7 (0 ULg)
Full Text
Peer Reviewed
See detailComparison of the open-closed field line boundary location inferred using IMAGE-FUV SI12 images and EISCAT radar observations
Hubert, Benoît ULg; Aikio, A. T.; Amm, O. et al

in Annales Geophysicae (2010), 28

We compare the location of the polar cap boundary (PCB) determined using two different techniques, and use them as proxies for the open-closed field line boundary (OCB). Electron temperatures from ... [more ▼]

We compare the location of the polar cap boundary (PCB) determined using two different techniques, and use them as proxies for the open-closed field line boundary (OCB). Electron temperatures from observations of the EISCAT radar facility are used to estimate the latitude of the PCB along the meridian of the EISCAT VHF beam. The second method utilizes global images of proton aurora obtained by the IMAGE satellite FUV SI12 instrument. These methods are applied to three different intervals. In two events, the agreement between the methods is good and the mean of the difference is within the resolution of the observations. In a third event, the PCB estimated from EISCAT data is located several degrees poleward of that obtained from the IMAGE FUV SI12 instrument. Comparison of the reconnection electric field estimated from the two methods shows that high-resolution measurements both in time and space are needed to capture the variations in reconnection electric field during substorm expansion. In addition to the two techniques introduced above to determine the PCB location, we also use a search for the location of the reversal of the east-west component of the equivalent current known as the magnetic convection reversal boundary (MCRB). The MCRB from the MIRACLE magnetometer chain mainly follows the motion of the polar cap boundary during different substorm phases, but differences arise near the Harang discontinuity. [less ▲]

Detailed reference viewed: 10 (2 ULg)
Full Text
Peer Reviewed
See detailComparison of the osteorisk, an osteoporosis risk assessment tool in latin america, with the osteoporosis self-assessment tool (OST)
Sen, S. S.; Geling, O.; Messina, O. D. et al

in Osteoporosis International (2002, November), 13(Suppl.3), 27-28

Detailed reference viewed: 7 (1 ULg)
Full Text
Peer Reviewed
See detailComparison of the performance of linear resistance and ultrasonic pneumotachometers at rest and during lobeline-induced hyperpnoea
Kästner, S. B. R.; Marlin, D. J.; Roberts, C. A. et al

in Research in Veterinary Science (2000), 68(2), 153-9

The performance of a Fleisch No. 5 pneumotachometer (F), and two commercial ultrasonic pneumotachometers, the BRDL (B) and the Spiroson (S) systems were compared in respect to their use for determination ... [more ▼]

The performance of a Fleisch No. 5 pneumotachometer (F), and two commercial ultrasonic pneumotachometers, the BRDL (B) and the Spiroson (S) systems were compared in respect to their use for determination of ventilatory parameters at rest and during lobeline-induced hyperpnoea. Five clinically healthy Thoroughbred horses were tested with the three pneumotachometers in random order. Respiratory airflow, respired gas concentrations, oesophageal pressures, pressures within the mask systems and arterial blood gases were determined before and during lobeline-induced hyperpnoea. Because measured peak expiratory airflow rates exceeded the stated linear range of the Fleisch pneumotachometer ( approximately +/- 25 l s(-1)) differential pressure-flow curves were determined in vitro over the range of flows recorded in vivo. Expired flows greater than the linear range were corrected according to the derived regression equation. No differences in any of the measured variables among the three systems were present at rest. At peak ventilation of lobeline-induced hyperpnoea mask pressures [Delta P(mask)(mean (SEM)): F: 9.6 (2.8) cm H(2)O, B: 0.8 (0.4) cm H(2)O, S: 1.4 (0.8) cm H(2)O] and end tidal carbon dioxide [ ET CO(2)(mean (SEM)): F: 2. 6 (0.1)%, B: 2.1 (0.2)%, S: 2.1 (0.1)%] were significantly higher in system F. Despite a tendency for respiratory frequency and peak inspired and expired flows, to be lower with system F, no significant differences in the measurements of ventilatory mechanics were detected. In conclusion, the ultrasonic flowmeters pose significantly lower resistive loads onto the respiratory system during ventilation above resting levels than Fleisch No 5 pneumotachometers. However, at the flowrates achieved during lobeline-induced hyperpnoea an in vitro calibration of the differential pressure-flow relationship allows correction for expiratory alinearity in system F. In addition, the performance of the Spiroson flowmeter is accurate in determining ventilatory mechanics at rest and during lobeline-induced hyperpnoea. [less ▲]

Detailed reference viewed: 27 (2 ULg)