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
Full Text
Peer Reviewed
See detailEffect of friction in a toy model of granular compaction
Ludewig, François ULg; Dorbolo, Stéphane ULg; Vandewalle, Nicolas ULg

in Physical Review E (2004), 70(5, Pt 1), 51304

A toy model of granular compaction which includes some resistance due to granular arches is proposed. In this model, the solid/solid friction of contacting grains is a key parameter and a slipping ... [more ▼]

A toy model of granular compaction which includes some resistance due to granular arches is proposed. In this model, the solid/solid friction of contacting grains is a key parameter and a slipping threshold omega(c) is defined. Realistic compaction behaviors have been obtained. Two regimes separated by a critical point omega(c)* of the slipping threshold have been emphasized: (i) a slow compaction with lots of paralyzed regions and (ii) an inverse logarithmic dynamics with a power-law scaling of grain mobility. Below the critical point omega(c)*, the physical properties of this frozen system become independent of omega(c). Above the critical point omega(c)*-i.e., for low friction values-the packing properties behave as described by the classical Janssen theory for silos. [less ▲]

Detailed reference viewed: 20 (7 ULg)
Full Text
Peer Reviewed
See detailEffect of fruit age, pre-storage and seed fermentation durations on seed germination and seedling vigor in Lagenaria siceraria
Yao, Koffi Bertin; Konan, Amenan Jacky; Koffi, Kouamé Kévin et al

in Journal of Applied Biosciences (2012), (49), 3339-3351

Objectives : the study was conducted to determine the optimum age of the fruit at harvest and to evaluate the effect of pre-storage and fermentation on the seeds'agronomic performance of oleaginous ... [more ▼]

Objectives : the study was conducted to determine the optimum age of the fruit at harvest and to evaluate the effect of pre-storage and fermentation on the seeds'agronomic performance of oleaginous Lagenaria siceraria. Methodology and results : Fruit of the "round-fruited" and "blocky-fruited", two cultivars of the species, were harvested at 3 different ages (30, 40 and 50 days after anthesis (DAA)). These fruits were pre-stored during 0,30 and 60 days after harvest (DAH), and then their seeds were fermented for 0,5 and 10 days. Seed viability (germination percentage and germination speed index) and seedlings vigor (emergence percentage, emergence speed index, seedling shoot length and seedling dry weight) were significantly (P< 0.001) influenced by each of the three factors. Following the positive interaction of these factors, the best viability and the most vigorous seedlings were obtained with seeds from fruits tardily harvested (50 DAA), pre-stored for a long time (60 DAH) and longer fermented (10 days). The simultaneous variation of the fruit wet weight and the seed color, dry weight and moisture content with their viability and the seedlings vigor indicates that these four parameters can be used as indicators of both cultivars maturity. Conclusions and application of findings : The results suggest that in deaginous L siceraria, fruits must be harvested 50 DAA, pre-stored up to 60 DPA. Good agronomic quality seeds must have yellow-orange color and be fermented up to 10 days. [less ▲]

Detailed reference viewed: 238 (4 ULg)
Full Text
Peer Reviewed
See detailEffect of fuel and kiln type on the polycyclic aromatic hydrocarbon (PAH) levels in smoked shrimp, a Beninese food condiment
Kpoclou, Euloge; Anihouvi, Victor; Azokpota, Paulin et al

in Food Additives & Contaminants. Part A. Chemistry, Analysis, Control, Exposure & Risk Assessment (2014), 31(7), 1212-1218

Detailed reference viewed: 21 (14 ULg)
Full Text
Peer Reviewed
See detailEffect of fuel and kiln type on the polycyclic aromatic hydrocarbon (PAH) levels in smoked shrimp, a Beninese food condiment
Kpoclou, Euloge; Anihouvi, Victor; Azokpota, Paulin et al

in Food Additives & Contaminants. Part A. Chemistry, Analysis, Control, Exposure & Risk Assessment (2014), 31(7), 1212-1218

Detailed reference viewed: 21 (14 ULg)
Full Text
Peer Reviewed
See detailEffect of fuel and kiln type on the polycyclic aromatic hydrocarbon (PAH) levels in smoked shrimp, a Beninese food condiment
Kpoclou, Euloge; Anihouvi, Victor; Azokpota, Paulin et al

in Food Additives & Contaminants. Part A. Chemistry, Analysis, Control, Exposure & Risk Assessment (2014), 31(7), 1212-1218

Detailed reference viewed: 21 (14 ULg)
Full Text
Peer Reviewed
See detailEffect of Ga doping on magneto-transport properties in colossal magnetoresistive La0.7Ca0.3Mn1-xGaxO3 (0 < x < 0.1)
Pekala, M.; Mucha, Jan ULg; Vertruyen, Bénédicte ULg et al

in Journal of Magnetism and Magnetic Materials (2006), 306(2), 181-190

Samples of La0.7Ca0.3Mn1-xGaxO3 with x = 0, 0.025, 0.05 and 0.10 were prepared by standard solid-state reaction. They were first characterized chemically, including the microstructure. The magnetic ... [more ▼]

Samples of La0.7Ca0.3Mn1-xGaxO3 with x = 0, 0.025, 0.05 and 0.10 were prepared by standard solid-state reaction. They were first characterized chemically, including the microstructure. The magnetic properties and various transport properties, i.e. the electrical resistivity, magnetoresistivity (for a field below 8 T), thermoelectric power and thermal conductivity measured each time on the same sample, are reported. The markedly different behaviour of the x = 0.1 sample from those with a smaller Ga content, is discussed. The dilution of the Mn3+/Mn4+ interactions with Ga doping considerably reduces the ferromagnetic double exchange interaction within the manganese lattice leading to a decrease of the Curie temperature. The polaron binding energy varies from 224 to 243 meV with increased Ga doping. (C) 2006 Elsevier B.V. All rights reserved. [less ▲]

Detailed reference viewed: 28 (5 ULg)
Full Text
Peer Reviewed
See detailEffect of gamma-hydroxybutyrate on keratinocytes proliferation: a preliminary prospective controlled study in severe burn patients.
ROUSSEAU, Anne-Françoise ULg; BARGUES, Laurent; LE BEVER, Hervé et al

in International Journal of Critical Illness and Injury Science (2014), 4(2), 108-113

Detailed reference viewed: 19 (7 ULg)
Full Text
Peer Reviewed
See detailEffect of GammaRay in the Progeny of Trispecific Hybrid [(Gossypium hirsutum x G. raimondii)² x G. sturtianum]
Diouf, Fatimata Bintou Hassédine ULg; Benbouza, H; Konan, O et al

in Notulae Botanicae Horti Agrobotanici Cluj-Napoca (2010), 38

Detailed reference viewed: 24 (3 ULg)
See detailEffect of gas density on ventilatory mechanics in healthy calves
Rollin, Frédéric ULg; Rodriguez, MN; Art, Tatiana ULg et al

in Archives Internationales de Physiologie et de Biochimie (1990)

Detailed reference viewed: 2 (0 ULg)
Full Text
Peer Reviewed
See detailEffect of geotextiles on crack propagation in the pavement overlays
Courard, Luc ULg; Rigo, Jean-Marie ULg

in Karunaratne, G.P.; Wong, C. (Eds.) Proceedings of the 5th International Conference on Geotextiles, Geomembranes and Related Products (1994)

Detailed reference viewed: 9 (0 ULg)
Full Text
Peer Reviewed
See detailEffect of glucosamine sulfate on health utility data in patients with knee osteoarthritis : reanalysis of two 3-year prospective studies.
Scholtissen, S.; Bruyère, Olivier ULg; Hiligsmann, Mickaël ULg et al

in Osteoporosis International (2009, March), 20(Suppl.1), 18

Detailed reference viewed: 28 (5 ULg)
Full Text
Peer Reviewed
See detailEffect of glucosamine sulfate on newly proposed/recommended clinical trial end-points in patients with knee osteoarthritis
Bruyère, Olivier ULg; Giacovelli, G.; Pavelka, K. et al

in Osteoporosis International (2006, March), 17(Suppl.1), 13

Detailed reference viewed: 8 (2 ULg)
Full Text
Peer Reviewed
See detailEffect of GnRH day 12 after artificial insemination on pregnancy rate in the cow
Szenci, O.; Perényi, Z.; Karen, A. et al

in Proceedings: 23rd World Buiatrics Congress, Québec, Canada (2004)

Detailed reference viewed: 11 (0 ULg)
Peer Reviewed
See detailThe effect of gonadal development and sex steroids on growth hormone secretion in the male tilapia hybrid (Oreochromis niloticus x O. aureus O;
Melamed, P.; Eliahu, N.; Ofir, M. et al

in Fish Physiology and Biochemistry (1995)

Detailed reference viewed: 6 (0 ULg)
Full Text
Peer Reviewed
See detailEffect of gonadal steroids on pituitary LH secretion and mediobasal hypothalamic GnRH mRNA in ferrets.
Bakker, Julie ULg; Baum, M. J.

in Journal of Reproduction and Fertility (2000), 119(2), 315-21

In vitro release and content of GnRH in mediobasal hypothalamic slices are reduced by ovariectomy of female ferrets but are not affected by castration of male ferrets in breeding condition. The aim of the ... [more ▼]

In vitro release and content of GnRH in mediobasal hypothalamic slices are reduced by ovariectomy of female ferrets but are not affected by castration of male ferrets in breeding condition. The aim of the present study was to determine whether this sex difference reflects a sexually dimorphic effect of gonadal steroids on mediobasal hypothalamic GnRH mRNA content of male and female ferrets killed 4 weeks after gonadectomy, either with or without steroid hormone replacement. This time interval exceeds the 6-10 days needed for increments in plasma LH concentrations to stabilize after gonadectomy of ferrets of both sexes. In situ hybridization using an (35)S-labelled oligoprobe complementary to the human GnRH coding region showed that the number of mediobasal hypothalamic neurones and the cellular content of GnRH mRNA did not differ significantly among groups of male and female ferrets that were either in breeding condition or that had been gonadectomized and treated with sex steroids or oil vehicle. These results indicate that gonadal hormones regulate mediobasal hypothalamic GnRH biosynthesis and release in both sexes via post-transcriptional events that may include GnRH mRNA translation or the conversion of pre-pro GnRH precursor into mature GnRH. [less ▲]

Detailed reference viewed: 9 (0 ULg)
Full Text
Peer Reviewed
See detailEffect of grade on disease-free survival and overall survival in FIGO Stage I adenocarcinoma of the endometrium.
Delaloye, J-F; Pampallona, S; COUCKE, Philippe ULg et al

in European Journal of Obstetrics & Gynecology & Reproductive Biology (2000), 88

Abstract Objective : To analyse the effect of differentiation on disease-free survival (DFS) and overall survival (OS) in patients with stage I adenocarcinoma of the endometrium. Patients and methods ... [more ▼]

Abstract Objective : To analyse the effect of differentiation on disease-free survival (DFS) and overall survival (OS) in patients with stage I adenocarcinoma of the endometrium. Patients and methods : From 1979 to 1995, 350 patients with FIGO stage IA–IC with well (G1), moderately (G2) or poorly (G3) differentiated tumors were treated with surgery and high dose-rate brachytherapy with or without external radiation. Median age was 65 years (39–86 years). Results : The 5-year DFS was 8863% for the G1 tumors, 7764% for the G2 tumors, and 6767% for the G3 tumors (P50.0049). With regard to the events contributing to DFS, the 5-year cumulative percentage of local relapse was 4.6% for the G1 tumors, 9.0% for the G2 tumors, and 4.6% (P50.027) for the G3 tumors. Cumulative percentage of metastasis was 1.4, 6.3 and 7.2% (P,0.001), respectively, whereas percentages of death were 6.0, 7.9 and 20.7% (P,0.001). The 5-year OS was 9163, 8364 and 7667%, respectively (P50.0018). In terms of multivariate hazard ratios (HR), the relative differences between the three differentiation groups correspond to an increase of 77% of the risk of occurrence of either of the three events considered for the DFS (HR51.77, 95% Cl [0.94–3.33]), (P50.078) for the G2 tumors and of 163% (HR52.63, 95% Cl [1.27–5.43]), (P50.009) for the G3 tumors with respect to the G1 tumors. The estimated relative hazards for OS are, respectively, in line with those for DFS: HR51.51 (P50.282) for the G2 tumors; and HR53.37 (P50.003) for the G3 tumors. Conclusion : Patients with grade 1 tumors are those least exposed to either local relapse, metastasis, or death. In contrast patients with grade 2 tumors seem to be at higher risk of metastasis, whereas patients with grade 3 tumors appear at higher risk of death. Since we have looked at the first of three competing events (local relapse, metastasis and death), this suggests that patients with grade 3 tumors probably progress to death so fast that local relapse, if any, cannot be observed. Ó 2000 Elsevier Science Ireland Ltd. All rights reserved. [less ▲]

Detailed reference viewed: 15 (0 ULg)
See detailEffect of grazing method, nitrogen level, supplementary feeding and stocking rate on the performance of young grazing bulls
Bienfait, Jean-Marie ULg; Gielen, Marc ULg; Limbourg, Pierre et al

in A seminar of the CEC. Grassland Beef Production (1984)

Detailed reference viewed: 2 (0 ULg)
Full Text
See detailEffect of ground scattering on noise barriers efficiency
Billon, Alexis ULg; Nemerlin, Jean ULg; Embrechts, Jean-Jacques ULg

Conference (2010, April 29)

Noise barriers are popular devices to mitigate the impact of roads or railway noise on the community. So, heavy works have been devoted to improve their efficiency, both through their shapes and their ... [more ▼]

Noise barriers are popular devices to mitigate the impact of roads or railway noise on the community. So, heavy works have been devoted to improve their efficiency, both through their shapes and their building materials. In this work, the effect of ground scattering on the insertion loss created by a straight hard thin screen is investigated using a 1/10th scale model. The ground possesses thus a repetitive structure to induce scattering. Measurements are conducted on both sides of the screen and comparisons are drawn with a flat ground configuration. [less ▲]

Detailed reference viewed: 42 (8 ULg)
Full Text
Peer Reviewed
See detailEffect of groundnut cake substitution by glandless cottonseed kernels on broilers production: animal performance, nutrient digestibility, carcass characteristics and fatty acid composition of muscle and fat
Diaw, Mamadou Tandiang; Dieng, Abdoulaye; Mergeai, Guy ULg et al

in International Journal of Poultry Sciences (2010), 9(5), 473-481

A study has been conducted with broilers to assess, during the rainy season, the effects of groundnut cake substitution by glandless Cottonseed Kernel (CSK), at levels of 0, 25, 50 and 75%. The ... [more ▼]

A study has been conducted with broilers to assess, during the rainy season, the effects of groundnut cake substitution by glandless Cottonseed Kernel (CSK), at levels of 0, 25, 50 and 75%. The substitution improved linearly feed intake and animal growth, as well as carcass component weights and allometric parameters. The CSK increased the C18:2 n-6 to C18:1 n-9 ratio, as well in diet as in meat and subcutaneous fat. In order to explain the observed performances, the possibility is considered that broilers used preferentially C18:2 n-6 fatty acids for their metabolism. Complete glandless cottonseed kernels are probably highly valuable for broilers production in warm and wet conditions. [less ▲]

Detailed reference viewed: 121 (18 ULg)