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See detailFactor complexity of S-adic sequences
Leroy, Julien ULg

Scientific conference (2013, September)

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See detailFactor Complexity of S-adic words generated by the Arnoux-Rauzy-Poincaré Algorithm
Labbé, Sébastien ULg; Berthé, Valérie

in Advances in Applied Mathematics (2015), 63

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See detailFactor Mobility and Redistribution
Cremer, Helmuth; Pestieau, Pierre ULg

in Henderson, J. V.; Thisse, J. F. (Eds.) Handbook of Regional and Urban Economics. Volume 4 (2004)

This chapter reviews recent theoretical work on the effect of factor mobility and the ensuing tax competition on the capacity of governments to raise revenue and redistribute income. It focuses on three ... [more ▼]

This chapter reviews recent theoretical work on the effect of factor mobility and the ensuing tax competition on the capacity of governments to raise revenue and redistribute income. It focuses on three issues: the relevance and limitations of the "race to the bottom" result, the benefits and pitfalls of partial coordination and the incidence of factors mobility on social security systems. [less ▲]

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See detailFactor V inhibitor after injection of human thrombin in a bleeding ulcer.
Caers, Jo ULg; Reekmans, An; Jochmans, Kristin et al

in Endoscopy (2003), 35((6)), 542-4

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See detailFactor XIII a-positive dermal dendrocytes and shear wave propagation in human skin.
Hermanns-Lê, Trinh ULg; Uhoda, I.; Pierard, Claudine ULg et al

in European Journal of Clinical Investigation (2002), 32(11), 847-51

BACKGROUND: The in vivo interdependence between the phenotypic characteristics of dermal cells and the strain imposed on the tissue has not been studied thoroughly in humans. In particular the mechanical ... [more ▼]

BACKGROUND: The in vivo interdependence between the phenotypic characteristics of dermal cells and the strain imposed on the tissue has not been studied thoroughly in humans. In particular the mechanical force modulation of Factor XIII a expression in dermal dendrocytes (DD) remains unknown. MATERIALS AND METHODS: The present study compares the numerical density of Factor XIII a-positive DD and the in vivo shear wave velocity in the skin. The investigation was performed in 20 men of normal weight and 20 obese men before and after entering a slimming process. RESULTS: Excess cutaneous fat places the skin under increased intrinsic tension. The resonance running time measurement (RRTM) and the DD density were significantly reduced in overweight individuals. After a short-term but intense slimming process, the same individuals showed a trend to normalization of these two parameters without, however, reaching significance. Pooling all data yielded a significant logarithmic correlation between RRTM values and densities in Factor XIII a-positive DD. CONCLUSION: Factor XIII a expression in human DD may be partially regulated by the intrinsic resting tensions in the skin. [less ▲]

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See detailFactor Xiiia-Positive Dendrocyte Rarefaction in Ehlers-Danlos Syndrome, Classic Type
Hermanns-Lê, Trinh ULg; Pierard, Gérald ULg

in American Journal of Dermatopathology (2001), 23(5), 427-30

The Ehlers-Danlos syndrome (EDS) represents a heterogeneous group of connective tissue disorders recognized by distinct clinical, microscopic, and biochemical aspects. In particular, some histologic and ... [more ▼]

The Ehlers-Danlos syndrome (EDS) represents a heterogeneous group of connective tissue disorders recognized by distinct clinical, microscopic, and biochemical aspects. In particular, some histologic and ultrastructural clues have been reported in the literature. We present a novel immunohistochemical aid to the diagnosis of the most frequent type of EDS. Factor XIIIa-positive dendrocytes are almost absent in the reticular dermis and markedly reduced in number and size in the adventitial dermis. By contrast, the densities of vimentin-positive cells and CD34-positive cells were unremarkable. The biologic significance of this finding is unknown. However, at least a subset of dermal dendrocytes interacts with fibroblasts. This mechanism could be affected in the classic form of EDS. [less ▲]

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See detailFactor Xiiia-Positive Dendrocytes and Proliferative Activity of Cutaneous Cancers
Pierard-Franchimont, Claudine ULg; Arrese Estrada, Jorge ULg; Nikkels, Arjen ULg et al

in Virchows Archiv : An International Journal of Pathology (1996), 429(1), 43-48

Factor XIIIa-positive dendrocytes present at the periphery and inside epithelial neoplasms are an heterogeneous group of cells. They are subsets of mesenchymal cells, cancer-associated macrophages and ... [more ▼]

Factor XIIIa-positive dendrocytes present at the periphery and inside epithelial neoplasms are an heterogeneous group of cells. They are subsets of mesenchymal cells, cancer-associated macrophages and antigen-presenting cells. Factor XIIIa, other tissue transglutaminases, alpha 2-macroglobulin and tumour necrosis factor-alpha represent a complex network of mediators influencing tumour progression in the skin. In the present study we searched for the presence of dendrocytes and alpha 2-macroglobulin deposits inside and in the vicinity of cutaneous carcinomas (90 basal cell carcinomas and 46 squamous cell carcinomas) and malignant melanomas (69 primary and 28 metastatic tumours). We also studied the proliferation of the same neoplasms by Ki-67 immunohistochemistry. Dendrocytes were numerous, abutting on and infiltrating most basal cell carcinomas and thin malignant melanomas. In contrast, they were present in only low numbers or even absent in thick primary malignant melanomas and in their metastases. They appeared unmodified around squamous cell carcinomas compared with the surrounding skin. Extracellular deposits of alpha 2-macroglobulin were often found in locations where dermal dendrocytes were numerous. No correlation was found between the Ki-67 indices of carcinomas and the density of peritumoral dendrocytes. In contrast, negative relationships were found between the Ki-67 indices and the number of dendrocytes present inside basal cell carcinomas and thin malignant melanomas. This study has yielded circumstantial evidence to link the density of factor XIIIa-positive dendritic cells and a low proliferative rate of neoplastic cells in basal cell carcinomas and malignant melanomas. [less ▲]

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See detailFactor-XIIIa-positive dendrocytes in drug-induced toxic epidermal necrolysis (Lyell's syndrome): paradoxical activation in skin and rarefaction in lymph nodes.
Paquet, Philippe ULg; Quatresooz, Pascale ULg; Pierard, Gérald ULg

in Dermatology : International Journal for Clinical & Investigative Dermatology (2003), 206(4), 374-8

BACKGROUND: Drug-induced toxic epidermal necrolysis (TEN) is a rare life-threatening disease characterized by the extensive destruction of the epidermis contrasting with the discreteness of lymphoid cell ... [more ▼]

BACKGROUND: Drug-induced toxic epidermal necrolysis (TEN) is a rare life-threatening disease characterized by the extensive destruction of the epidermis contrasting with the discreteness of lymphoid cell infiltration. The precise pathomechanism of the disease remains unclear. METHODS: Skin specimens and peripheral and thoracic lymph nodes (LNs) were collected from 2 TEN patients. They were examined by conventional histology and immunohistochemistry using antibodies directed to factor XIIIa (dermal dendrocytes), CD1a (Langerhans cells), CD15 (granulocytes), CD20 (B lymphocytes), CD45RO (activated T lymphocytes), CD68 (macrophages) and the proliferation marker Ki-67. LNs from patients with mycosis fungoides, from subjects dead from acute cardiac failure or traumatic injuries, as well as metastasis-free sentinel LNs of cutaneous melanoma served as positive and negative controls. RESULTS: TEN LNs showed absence of germinal centers but a moderate hyperplasia of the paracortical T cell zone. Immunohistochemistry did not reveal any distinctive aspect in LN cellular densities between TEN and other control conditions except for the factor-XIIIa+ dendritic cells which were dramatically reduced in numbers in TEN LNs. This rarefaction in LNs contrasted with the great number of these cells in the skin of the same patients. CONCLUSION: The structure of TEN LNs rules out the involvement of an antibody-mediated response. As dendritic factor-XIIIa+ cells are involved in most cutaneous T-cell-mediated responses, their depletion in TEN LNs could explain the sparse lymphoid cell infiltrate in lesional TEN skin. [less ▲]

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See detailFactores predictivos de nueva fractura tras vertebroplastia.
Docampo Martinez, Elisa ULg; Ciria, Manel; Serra-Burges, Joan et al

in Medicina clinica (2009), 133(1), 17-9

PURPOSE: To evaluate the risk factors of new fractures after vertebroplasty (VP). PATIENTS AND METHOD: Prospective, non-randomized study including patients with acute osteoporotic fractures treated with ... [more ▼]

PURPOSE: To evaluate the risk factors of new fractures after vertebroplasty (VP). PATIENTS AND METHOD: Prospective, non-randomized study including patients with acute osteoporotic fractures treated with VP. Baseline visit included clinical and densitometric data. At 30, 90 and 180 days, changes in clinical data and side effects (cement leakage and new fractures) were recorded. To establish the predictive factors of a new fracture, differences between the group of patients with new fractures (R1) and those without fractures (R0) were evaluated. RESULTS: Vertebroplasty was performed in 43 patients (82 vertebrae). Cement leakage into a disc appeared in 11 cases (11,5%) and 12 new fractures occurred in 9 patients. No statistical differences were detected between groups R1 and R0 in the following variables: sex, age, vitamin D levels, T-score, kyphosis angle, primary/secondary osteoporosis, preexisting fractures, number of treated vertebrae and amount of cement injected. A positive, statistical significant correlation, was established between cement leakage into a disk and incidence of adjacent new fractures (p<0.001). CONCLUSIONS: Cement leakage into a disc increases the risk of adjacent new fractures after vertebroplasty. [less ▲]

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See detailFactorial structure and psychometric properties of the French adaptation of the Dissociative Experiences Scale (DES) in non-clinical participants
Laroi, Frank ULg; Billieux, J; Defeldre, A-C et al

in European Review of Applied Psychology = Revue Européenne de Psychologie Appliquée (2013), 63

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See detailFactorization of minimal substitutive subshifts
Leroy, Julien ULg

Conference (2016, June)

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See detailFactors accounting for perinatal occurrence of pulsatile gonadotropin-releasing hormone secretion in vitro in rats
Parent, Anne-Simone ULg; LEBRETHON, Marie-Christine ULg; Gerard, Arlette ULg et al

in Biology of Reproduction (2005), 72(1), 143-149

Our aim was to study the inhibitory and facilitatory factors possibly accounting for the undetectable activity of the GnRH pulse generator in late fetal life in vitro and its awakening in early postnatal ... [more ▼]

Our aim was to study the inhibitory and facilitatory factors possibly accounting for the undetectable activity of the GnRH pulse generator in late fetal life in vitro and its awakening in early postnatal life. Gamma aminobutyric acid (GABA(A)) receptor antagonism using SR 95 531 did not cause any secretory pulse in fetal explants, whereas a significant stimulation of GnRH pulse frequency was obtained at 5 and 15 days. GnRH secretory response to repeated N-methyl-D-aspartate (NMDA) stimulation showed progressive disappearance, indicating that the inhibitory autofeedback was operating. GnRH release caused by glutamine was respectively 9% and 20% of that evoked by glutamate in fetal and 5-day-old rats whereas both amino acids were equally active at 15 days. Explants obtained after cesarean section performed at onset of labor did not show any secretory pulse, while pulses could be observed with explants obtained 2 h after vaginal delivery. Incubation of fetal explants with oxytocin (10(-8) M) or prostaglandin E-2 (PGE(2)) (10(-6) M) resulted in occurrence of GnRH secretory pulses. A facilitatory effect of the oxytocin was shown to persist on Days 1, 5, and 15 and inhibitory effects of an oxytocin receptor antagonist provided some evidence of endogenous oxytocin involvement. We conclude that, in the fetal rat hypothalamus, GnRH inhibitory autofeedback and GABAergic inputs do not account for the absence of pulsatile GnRH secretion in vitro. A low rate of glutamate biosynthesis from glutamine is a possibly limiting factor. Oxytocin and PGE(2) can play a facilitatory role in the postpartal occurrence of pulsatile GnRH secretion. [less ▲]

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See detailFactors affecting allergen-specific IgE serum levels in cats
Fontaine, Jacques ULg

in Canadian Journal of Veterinary Research = Revue Canadienne de Recherche Vétérinaire (2012), January; 76(1)

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See detailFactors affecting black grouse numbers : an overview of the part of predators.
Loneux, Michèle ULg; Kolb, K.; Ruwet, Jean-Claude et al

Conference (2005)

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See detailFactors affecting black grouse numbers : an overview of the part of predators. European conference, black grouse endangered species,
Loneux, Michèle ULg; Kolb, Karl-Heinz; Ruwet, Jean-Claude et al

in PLUMMER, Ron (Ed.) European Conference 'Cynhadledd Ceiliog Y Rhos' Black Grouse Endangered Species (2005, December)

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See detailFactors affecting hematopoietic recovery after autologous peripheral blood progenitof-cell transplantation in aggressive non-Hodgkin's lymphoma : a prospective study of 123 patients
Langouet, Anne-Marie; Brice, Pauline; Simon, Danielle et al

in Hematology Journal : The Official Journal of the European Haematology Association (2001), 2

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See detailFactors Affecting Plasma Pregnancy-associated Glycoprotein 1 Concentrations Throughout Gestation in High-producing Dairy Cows.
Serrano, B.; Lopez-Gatius, F.; Santolaria, P. et al

in Reproduction in Domestic Animals (2009), 44(4), 600-605

This study was designed to establish the factors, if any, which could affect plasma pregnancy-associated glycoprotein-1 (PAG-1) expression in a study population of 87 pregnant, high-producing dairy cows ... [more ▼]

This study was designed to establish the factors, if any, which could affect plasma pregnancy-associated glycoprotein-1 (PAG-1) expression in a study population of 87 pregnant, high-producing dairy cows. The factors examined were: semen providing breed (Holstein-Friesian vs Limousin), outcome of gestation (male vs female newborn, and singleton vs twin pregnancies), lactation number, milk production at pregnancy diagnosis, plasma progesterone concentration, season of gestation (warm period, March-November vs cool period, December-February), and day of gestation (40, 90, 120, 150, 180 and 210). Pregnancy was diagnosed by transrectal ultrasound on day 40 post-insemination and by palpation per rectum on days 90, 120, 150, 180 and 210. Blood samples were collected from each animal immediately before each pregnancy diagnosis. The relative contributions of the different factors on PAG-1 concentrations were evaluated by GLM repeated measures analysis of variance. No significant effects of the herd, foetal sex, milk production, lactation number and plasma progesterone concentrations were observed. In contrast, twin pregnancy, the use of Limousin semen and conception during the cool period were correlated with significantly increased plasma PAG-1 concentrations throughout gestation. Our data indicate that both cow well-being during early placental development, determined in our conditions by reduced heat stress when conception occurred in the cool season, and crossbreed pregnancies lead to improved PAG-1 production throughout the gestation period. [less ▲]

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See detailFactors affecting plasma progesterone in the early fetal period in high producing dairy cows.
Bech-Sabat, G.; Lopez-Gatius, F.; Yaniz, J. L. et al

in Theriogenology (2008), 69(4), 426-32

The aim of the present study was to determine whether certain animal- or management related factors could affect plasma progesterone concentrations on Day 42 of gestation in high producing dairy cows ... [more ▼]

The aim of the present study was to determine whether certain animal- or management related factors could affect plasma progesterone concentrations on Day 42 of gestation in high producing dairy cows. Factors affecting early fetal loss were also analyzed. The study population was comprised of 199 pregnant cows classified as having high (> or =9 ng/ml) or low (<9 ng/ml) plasma progesterone concentrations. Through logistic regression procedures it was determined that, based on the odds ratio, cows with two or more corpora lutea were three times more likely to have high progesterone concentrations than cows with a single corpus luteum. Low producing cows during the warm season were 2.86 times more likely to have high progesterone concentrations than the remaining cows. Primiparous cows with high concentrations (>4 ng/ml) of pregnancy associated glycoprotein-1 (PAG-1) were 2.73 times more likely to have high progesterone concentrations than the remaining cows. Of the 199 pregnancies, 25 (12.6%) suffered early fetal loss: 22/136 (16.2%) during the warm season and 3/63 (4.8%) during the cool season, all in cows without additional corpora lutea. Based upon the odds ratio, cows without an additional corpus luteum were 3.67 times more likely to suffer fetal loss during the warm season than during the cool season. Our results indicate that milk production, the presence of two or more corpora lutea and plasma PAG-1 concentrations can affect plasma progesterone concentrations at the onset of the fetal period. The presence of an additional corpus luteum strongly diminished the risk of early fetal loss during the warm period. [less ▲]

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See detailFactors affecting plasma prolactin concentrations throughout gestation in high producing dairy cows.
Garcia-Ispierto, I.; Lopez-Gatius, F.; Almeria, S. et al

in Domestic Animal Endocrinology (2009), 36(2), 57-66

The aim of the present study was to investigate possible relationships between plasma concentrations of prolactin and the following factors throughout gestation in lactating dairy cows: photoperiod ... [more ▼]

The aim of the present study was to investigate possible relationships between plasma concentrations of prolactin and the following factors throughout gestation in lactating dairy cows: photoperiod, season, milk production, Neospora caninum-seropositivity, twin pregnancy, and plasma concentrations of pregnancy associated glycoproteins-1 (PAG-1), progesterone and cortisol. Pregnancy was diagnosed by trans-rectal ultrasonography on Day 40 post-insemination and by palpation per rectum on Days 90, 120, 150, 180 and 210 or until abortion in aborting cows. Blood samples were collected from each animal immediately before each pregnancy diagnosis. The study population was comprised of 73 non-aborting (54 Neospora-seropositive cows) and 20 aborting cows (all Neospora-seropositive) cows. In non-aborting cows, GLM repeated measures of analysis of variance revealed that lactation number and days in milk had no effect on plasma prolactin concentrations throughout gestation, whereas high plasma prolactin concentrations were significantly associated with high plasma levels of cortisol and PAG-1, with Neospora-seropositivity, positive photoperiod (increasing day length), twin pregnancy, and with low plasma progesterone concentrations. An interaction among plasma prolactin, plasma cortisol and milk production was observed in that plasma prolactin concentrations differed significantly throughout gestation and were highest in high-producing cows with high cortisol levels. In Neospora-seropositive non-aborting versus aborting cows, mean prolactin concentrations failed to differ on Days 40, 90, 120, 150 and 180 of pregnancy, whereas prolactin values were significantly lower (P=0.03) in aborting animals on Day 210 of pregnancy. Our results indicate that a positive photoperiod and Neospora-infection lead to increased plasma prolactin concentrations throughout gestation. Reduced prolactin concentrations detected in Neospora-seropositive aborting cows compared to non-aborting animals suggests a protective effect of prolactin in N. caninum infection. [less ▲]

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See detailFactors Affecting Small Scale Fish Farmers in Accessing Markets: a case study of fish value chain in HaiDuong Province, Vietnam
Nguyen Van Huong, ULg; Tran Huu, Cuong; Lebailly, Philippe ULg

Conference (2016)

Traditionally, small farmers sell their crops or/and animals at the farm gate to intermediaries, often at a low price. However, innovations in marketing arrangements can transform market relations in ... [more ▼]

Traditionally, small farmers sell their crops or/and animals at the farm gate to intermediaries, often at a low price. However, innovations in marketing arrangements can transform market relations in favour of smallholders, and producer organizations are well-positioned to take advantage of these new approaches. Factor analysis was applied on twelve components of output markets in Haiduong province. The results show that there are patterns that are observable in terms of access and use of output market by fish farmers. The most commonly used output markets by aquaculture farmers are local fresh output market, the best retail produce markets as well as the wholesale fresh fish markets. The study reveals that farmers tend to sell their fish to the wholesale fresh fish markets. The best retail output markets also provide an important market outlet for produce by aquaculture farmers. Improving road conditions and transport services in the projected regions of aquaculture production as well as rural areas will not only improve accessibility of external markets, but will also improve accessibility of local output markets. [less ▲]

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