5. Les régulateurs de croissance

in Bodson, Bernard; Destain, Jean-Pierre (Eds.) Livre Blanc - Céréales (2013, February 27)

5. Les régulateurs de croissance

in Livre Blanc: Céréales - Gembloux (2011, February 23)

Les 50 ans de la CAAMI

Book published by Academia Press (2005)

50 jaar HZIV

Book published by Academia Press (2005)

50 Years of contrasted residue management in an agricultural crop: impacts on the soil carbon budget and on heterotrophic respiration.

Poster (2012, February 10)

This study aims to estimate the carbon (C) loss by soil heterotrophic respiration (SHR) in three contrasted residue management treatments (Residue Export, Farm Yard Manure addition and Residue Restitution ... [more ▼]

This study aims to estimate the carbon (C) loss by soil heterotrophic respiration (SHR) in three contrasted residue management treatments (Residue Export, Farm Yard Manure addition and Residue Restitution after harvest) through the establishment of soil C budgets, and to compare these estimations with field SHR measurements. The soil C budgets were calculated in each case on the basis of total soil organic C content and C input data compiled since the beginning of the experiment in Belgium, 50 years ago. SHR fluxes were measured in 2010 and 2011 to compare them with the budget-based estimates and to assess SHR sensitivity to temperature. The comparison suggested that the treatment receiving the largest C input does not necessarily sequestrate the most C or produce the largest CO2 fluxes. [less ▲]

50-60 Hz electric and magnetic field effects on cognitive function in humans: A review

in Radiation Protection Dosimetry (2003), 106(4), 333-340

This paper reviews the effect of 50-60 Hz weak electric, magnetic and combined electric and magnetic field exposure on cognitive functions such as memory, attention, information processing and time ... [more ▼]

This paper reviews the effect of 50-60 Hz weak electric, magnetic and combined electric and magnetic field exposure on cognitive functions such as memory, attention, information processing and time perception, as determined by electroencephalographic methods and performance measures. Overall, laboratory studies that have investigated the acute effects of power frequency fields on cognitive functioning in humans are heterogeneous, in terms of both electric and magnetic field (EMF) exposure and the experimental design and measures used. Results are inconsistent and difficult to interpret with regard to functional relevance for possible health risks. Statistically significant differences between field and control exposure, when they are found, are small, subtle, transitory, without any clear dose-response relationship and difficult to reproduce. The human performance or event related potentials (ERPs) measures that might specifically be affected by EMF exposure, as well as a possible cerebral structure or function that could be more sensitive to EMF, cannot be better determined. [less ▲]

51. Telmisartan Plus HCTZ vs. Amlodipine Plus HCTZ in older patients with systolic hypertension : results from a large ambulatory blood pressure monitoring study

in American Journal of Geriatric Cardiology (2006), 15

Systolic hypertension often requires combination therapy. Few data exist comparing angiotensin receptor blocker plus diuretic therapy with other combinations in older patients. In a prospective ... [more ▼]

Systolic hypertension often requires combination therapy. Few data exist comparing angiotensin receptor blocker plus diuretic therapy with other combinations in older patients. In a prospective, randomized, open-label, blinded-end point trial, patients (≥60 years of age) with predominantly systolic hypertension received telmisartan 40–80 mg or amlodipine 5–10 mg for 8 weeks, before the addition of hydrochlorothiazide (HCTZ) 12.5 mg for a further 6 weeks. Twenty-four-hour ambulatory blood pressure monitoring showed that telmisartan plus HCTZ (n =448) and amlodipine plus HCTZ (n =424) changed systolic blood pressure for the last 6 hours of the dosing interval by −18.3 and −17.4 mm Hg, respectively (p =0.2520). Over the 24-hour period, telmisartan plus HCTZ was superior (−19.3 and −17.2 mm Hg, respectively; p =0.001) and provided higher systolic control rates (65.9% and 58.3%, respectively; p =0.0175). Adverse events (41.2% and 53.7%, respectively) and discontinuations (5.0% and 11.3%, respectively) were lower (p<0.0001) with telmisartan than with amlodipine, mainly due to peripheral edema (1.2% and 24.3%, respectively). [less ▲]

[56,4(+)] baryons in the 1/N-c expansion

in Physical Review D (2005), 71(1),

Using the 1/N-c expansion of QCD, we analyze the spectrum of positive parity resonances with strangeness S=0, -1, -2, and -3 in the 2-3 GeV mass region, supposed to belong to the [56,4(+)] multiplet. The ... [more ▼]

Using the 1/N-c expansion of QCD, we analyze the spectrum of positive parity resonances with strangeness S=0, -1, -2, and -3 in the 2-3 GeV mass region, supposed to belong to the [56,4(+)] multiplet. The mass operator is similar to that of [56,2(+)], previously studied in the literature. The analysis of the latter is revisited. In the [56,4(+)] multiplet we find that the spin-spin term brings the dominant contribution and that the spin-orbit term is entirely negligible in the hyperfine interaction, in agreement with constituent quark model results. More data are strongly desirable, especially in the strange sector in order to fully exploit the power of this approach. [less ▲]

(596) Scheila

in Central Bureau Electronic Telegrams (CBETs) (2011), 2632

E. Jehin, J. Manfroid, D. Hutsemekers, M. Gillon, and P. Magain, Fonds National de la Recherche Scientifique, Liege University, report on broad- and narrow-band imaging of the (596) Scheila outburst (CBET ... [more ▼]

E. Jehin, J. Manfroid, D. Hutsemekers, M. Gillon, and P. Magain, Fonds National de la Recherche Scientifique, Liege University, report on broad- and narrow-band imaging of the (596) Scheila outburst (CBET 2583) with the TRAPPIST 0.60-m telescope at La Silla, and on optical spectroscopy with the European Southern Observatory's Very Large Telescope (VLT) at Paranal. R-band imaging from 2010 Dec. 12.3 to 21.3 UT revealed two arc-like coma features expanding at a regular pace. The first such feature was 1' long on 2010 Dec. 12, oriented to the northeast and bending to p.a. 280 deg (the anti-solar direction). The second feature was shorter, 30" on Dec. 12, oriented to the south and bending to p.a. 230 deg. Both features were getting larger and fainter with time (4' and 2' long, respectively, on Dec. 21.3). A narrow 45"-long tail, opposite the sun (p.a. 280 deg), was also observed in good seeing. R-band images taken on 2011 Jan. 4.3 and 5.3 after the full moon allowed Jehin et al. to again observe these features, seen as 7' and 4' long, respectively -- and much fainter. This discards any sustained activity of the minor planet. Narrow-band images obtained on 2010 Dec. 12.3 with cometary filters do not show any contribution from gases. A 20-min optical spectrum was obtained with FORS2 at the VLT on Dec. 13.3; it does not show any extended cometary gaseous emissions, but only a spatially extended continuum due to dust-scattered sunlight. Short B, V, R, and I exposures performed nearly every two nights from 2010 Dec. 12.3 to 2011 Jan. 5.3 give a magnitude for the nuclear condensation of V = 14.2 +/- 0.1 over the whole period, in agreement with the "APmag" value reported in the Jet Propulsion Laboratory ephemeris. No flux variation of the nuclear condensation was observed. Those preliminary results are in favor of a collisional scenario to explain the outburst of (596) Scheila, rather than a cometary driven activity. This case might be similar to the outburst of comet P/2010 A2, which may have resulted from an impact of a minor planet (Snodgrass 2010, Nature 467, 814). [less ▲]

6 - Functional analysis of the lithics

in Vermeersch, Pierre M. (Ed.) The Ahrensburgian at Zonhoven-Molenheide (Belgium) (2013)