Is motor sequence learning impaired in Developmental Coordination Disorder?
Lejeune, Caroline ; Catale, Corinne ; Schmitz, Xavier et al
Developmental Coordination Disorder (DCD) is a developmental disorder characterized by marked impairments in motor skills. Despite its negative impact on daily activities and on cognitive and academic ... [more ▼]
Developmental Coordination Disorder (DCD) is a developmental disorder characterized by marked impairments in motor skills. Despite its negative impact on daily activities and on cognitive and academic performance, the mechanisms underlying this disorder remain largely unknown. One hypothesis that has been proposed is that the poor motor coordination abilities may be attributed to impairments in motor learning and, more specifically, in learning of the correct sequencing of movements (Gheysen et al., 2011). To date, only two studies have directly investigated sequence learning in DCD, but their results are contradictory. The aim of this study was to explore learning of motor sequence in DCD children by means of a modified version of the Serial Reaction Time (SRT) task where the standard keyboard was replaced by a touch screen in order to reduce the impact of the DCD group’s motor difficulties. A total of 34 children (17 with DCD and 17 typically developing (TD) children aged between 6 and 12 years old participated in this study. Results show that DCD children were able to learn the sequence as fast and as accurately as TD children. These findings, showing that children with DCD present the same degree of implicit learning as TD children, differ from those obtained by Gheysen et al. (2011) and so, challenge the motor sequence learning deficit hypothesis. We suggest that differences between studies are not related to an implicit sequence learning deficit per se in children with DCD, but rather to methodological aspects like the response mode used in the studies. [less ▲]Detailed reference viewed: 109 (2 ULg)
Is neon a viable solution to the solar model problem? Insights from nearby B-type stars
Morel, Thierry ;
in Journal of Physics Conference Series (2008), 118
The recent downward revision of the solar CNO photospheric abundances now leads to severe inconsistencies between theoretical models for the Sun's internal structure and the results of helioseismology ... [more ▼]
The recent downward revision of the solar CNO photospheric abundances now leads to severe inconsistencies between theoretical models for the Sun's internal structure and the results of helioseismology. There have been claims that the solar Ne abundance may be underestimated and that an increase in this ill-defined quantity could alleviate (or even completely solve) this problem. To address the validity of this hypothesis, we present a fully homogeneous non-LTE abundance analysis of the optical Ne I/II lines in a sample of 18 nearby B-type stars. Our very preliminary results point towards a mean neon abundance slightly higher than the new solar value, but apparently insufficient by itself to restore the agreement between the solar models and the helioseismological constraints. [less ▲]Detailed reference viewed: 5 (1 ULg)
Is neutrophil elastase associated with myeloperoxidase concentration and post-thawing parameters in equine frozen semen?
Ponthier, Jérôme ; de la Rebière de Pouyade, Geoffroy ; et al
in Animal Reproduction Science (2010), 121S
Non sperm cells concentration is higher in unfreezable semen. A relation between non-sperm cells in fresh semen and MPO and post thawing quality has been observed. Neutrophil Elastase seems to have no ... [more ▼]
Non sperm cells concentration is higher in unfreezable semen. A relation between non-sperm cells in fresh semen and MPO and post thawing quality has been observed. Neutrophil Elastase seems to have no effect on semen characteristics and to be not associated with on-sperm cells and freezability. [less ▲]Detailed reference viewed: 81 (28 ULg)
Het is nooit goed. Marginalia bij De pasvorm van de goede smaak van Marc Reynebeau
in Yang : Tijdschrift voor Literatuur en Kommunikatie (1995), 31(3-4), 111-121
This article criticizes the illusions of normative literary criticism, which hopes to determine 'once and for all' the true and objective value of literature.Detailed reference viewed: 25 (0 ULg)
Is novelty seeking a stable trait or not? Study of the importance of the environment in Swiss mice
Nyssen, Laura ; Quertemont, Etienne
Poster (2013, May 28)Detailed reference viewed: 21 (9 ULg)
Is Open Access just for articles in STM? Can OA books help Humanities? The Liège Experience
Rentier, Bernard ; Thirion, Paul
Scientific conference (2011, February 25)Detailed reference viewed: 94 (12 ULg)
Is organic farming a tool for sustainable development in Wallonia ?
Burny, Philippe ;
in Socaciu, Carmen (Ed.) The 12th International Symposium "Prospects for the 3rd Millennium Agriculture" : Book of abstracts, volume 1 (2013)Detailed reference viewed: 15 (5 ULg)
Is organic farming the solution for the future of Walloon agriculture ?
Burny, Philippe ;
in Atkociuniene (Ed.) The Sixth International Scientific Conference "Rural Development 2013" : Proceedings, volume 6, book 1 (2013)
Organic farming is considered to be one of the solutions for the problems of sustainability faced today by the agriculutral sector. This paper describes the growth of the Walloon organic sector during the ... [more ▼]
Organic farming is considered to be one of the solutions for the problems of sustainability faced today by the agriculutral sector. This paper describes the growth of the Walloon organic sector during the last years thanks to the support of the regional authorities through financial incentives and a new regional strategic development plan. It also presents some results collected during an on-farm survey concerning organic cereals. It appears that organic farming has significantly developed thaks to public support even if the prices of organic products are exceeding by 30% those of conventional products. Organic farming can play a significant role in the future of Walloon agriculture. However, due to the high conversion rate during these last years, it is not guaranteed that the financial support could be conserved at a such level. [less ▲]Detailed reference viewed: 22 (4 ULg)
Is paralysing lumbar disc herniation a surgical emergency ?
DUBUISSON, Annie ; BORLON, Sarah ; NGUYEN KHAC, Minh-Tuan et al
Conference (2011, March 26)Detailed reference viewed: 54 (7 ULg)
Is parenteral nutrition guilty?
; ; et al
in Intensive Care Medicine (2003), 29(11), 1861-1864Detailed reference viewed: 6 (0 ULg)
Is phonological short-term memory related to phonological analysis stages in auditory sentence processing?
Majerus, Steve ;
in European Journal of Cognitive Psychology (2009), 21Detailed reference viewed: 40 (13 ULg)
Is planned vaginal delivery for breech presentation at term still an option? Results of an observational prospective survey in France and Belgium
; ; Foidart, Jean-Michel et al
in American Journal of Obstetrics and Gynecology (2006), 194(4), 1002-1011
Objective: A large trial published in 2000 concluded that planned vaginal delivery of term breech births is associated with high neonatal risks. Because the obstetric practices in that study differed from ... [more ▼]
Objective: A large trial published in 2000 concluded that planned vaginal delivery of term breech births is associated with high neonatal risks. Because the obstetric practices in that study differed from those in Countries where planned vaginal delivery is still common, we conducted an observational prospective study to describe neonatal Outcome according to the planned mode of delivery for term breech births in 2 such countries. Study design: Observational prospective study with an intent-to-treat analysis to compare the groups for which cesarean and vaginal deliveries were planned. Associations between the outcome and planned mode of delivery were controlled for confounding by multivariate analysis. The main outcome measure was a variable that combined fetal and neonatal mortality and severe neonatal morbidity. The study Population consisted of 8105 pregnant women delivering singleton fetuses in breech presentation at term in 138 French and 36 Belgian maternity units. Results: Cesarean delivery was planned for 5579 women (68.8%) and vaginal delivery for 2526 (31.2%). Of the women with planned vaginal deliveries, 1796 delivered vaginally (71.0%). The rate of the combined neonatal outcome measure was low in the overall population (1.59%; 95%, Cl [1.33-1.89]) and in the planned vaginal delivery group (1.60%; 95% CI [1.14-2.17]). It did not differ significantly between the planned vaginal and cesarean delivery groups (unadjusted odds ratio 1.10, 95% CI [0.75-1.61]), even after controlling for confounding variables (adjusted odds ratio 1.40, 95% CI [0.89-2.23]). Conclusion: In places where planned vaginal delivery is a common practice and when strict criteria are met before and during labor, planned vaginal delivery of singleton fetuses in breech presentation at term remains a safe option that can be offered to women. (C) 2006 Mosby, Inc. All rights reserved. [less ▲]Detailed reference viewed: 87 (4 ULg)
Is plasme cystatin C better than creatinine to detect renal failure in heart transplant recipients?
Delanaye, Pierre ; Nellessen, Eric ; Grosch, Stéphanie et al
Conference (2004)Detailed reference viewed: 19 (2 ULg)
Is political engangement rooted in familial or social participation?
Born, Michel ; Mathys, Cécile ; Waxweiler, Charline
Conference (2010, May)Detailed reference viewed: 25 (8 ULg)
Is posterior cerebral hypometabolism always predicitve of dementia in Parkinson's disease?
Deville, Benjamin ; Lemaire, Christian ; Degueldre, Christian et al
Poster (2010, June 08)
In Parkinson's disease, altered activity in posterior associative cortices has often been associated with dementia. It remains to be determined if this pattern is a reliable marker of a progression toward ... [more ▼]
In Parkinson's disease, altered activity in posterior associative cortices has often been associated with dementia. It remains to be determined if this pattern is a reliable marker of a progression toward dementia in patients without demonstratable dementia. In this retrospective analysis, we used positron emission tomography to study resting-state cerebral fluodeoxyglucose uptake in 8 healthy controls and 8 Parkinson's disease patients who did not have evidence of dementia at the time of assessment. For those patients, clinical follow up was available and we know that they did not meet dementia criteria on average 10,37 years after assessment. The results show that patients had reduced fluodeoxyglucose uptake mostly localised in the right hemisphere and including precuneus, superior temporal, middle temporal and inferior parietal cortices. It also includes right insula. These cerebral activity predominating in posterior cortices is present in non-demened patients but is not always predictive of dementia within the 10,34 years. [less ▲]Detailed reference viewed: 31 (8 ULg)
Is secularism so good for women ?
Conference (2012, July)
The paper reverse the famous question of Susan Möller Okin "Is multiculturalism bad for women" and asks the question of the supposed "natural alliance" between secularism and democracy. It takes as an ... [more ▼]
The paper reverse the famous question of Susan Möller Okin "Is multiculturalism bad for women" and asks the question of the supposed "natural alliance" between secularism and democracy. It takes as an illustration the relation between secularist movement and women's claims in the history of Belgium from the Belgian revolution until now. It presents a first, sketchy description of the alliance, trying to show that three periods can be distinguished : until the end of the schoolwar, the relations between the secularist movement and women's claim are rather weak and the secularists tend to distrust women, they consider as allied of the clerics; during the period of 1960-2000, the alliance is stonger over the claim of "self-disposal of one's body'" ; then, from 2000 until now, there is a strong division between both secularist and feminist movements, and so there are two alliances : radical secularism and mainstream feminist movement are allied against islam while, radical feminist and tolerant secularism are allied against neo-colonialist position. [less ▲]Detailed reference viewed: 73 (10 ULg)
Is sexual motivational state linked to dopamine release in the medial preoptic area?
; ; Cornil, Charlotte et al
in Behavioral Neuroscience (2010)
The medial preoptic area (mPOA) is a key site for the dopaminergic enhancement of male sexual behavior. Dopamine release increases in the rat mPOA with mating, supporting the critical stimulatory role ... [more ▼]
The medial preoptic area (mPOA) is a key site for the dopaminergic enhancement of male sexual behavior. Dopamine release increases in the rat mPOA with mating, supporting the critical stimulatory role played by preoptic dopamine on male sexual behavior. However, it has been questioned whether dopamine is specifically related to the occurrence of male sexual behavior and not simply involved in general arousal. To address this question, we ask whether dopamine release in the mPOA is linked to the production of male sexual behavior in Japanese quail, a species that exhibits a much shorter temporal pattern of copulation than rats and does not have an intromittent organ, resulting in a very different topography of their sexual response. Extracellular samples from the mPOA of adult sexually experienced male quail were collected every six minutes before, during, and after exposure to a female using in vivo microdialysis and analyzed using HPLC-EC. Extracellular dopamine significantly increased in the presence of a female and returned to baseline after removal of the female. However, subjects who failed to copulate did not display this increased release. These findings indicate that it is not solely the presence of a female that drives dopamine release in males, but how a male responds to her. Further, in subjects that copulated, dopamine release did not change in samples collected during periods of no copulation. Together, these findings support the hypothesis that dopamine action in the mPOA is specifically linked to sexual motivation and not only copulatory behavior or physical arousal. [less ▲]Detailed reference viewed: 59 (4 ULg)
Is steroid 16alpha-hydroxylase supported by more than one mono-oxygenase.
Kremers, Pierre ; Pasleau, Françoise ;
in Biochemical and Biophysical Research Communications (1978)
Steroid-16α-hydroxylase activities have been measured in normal and induced rat livers using four different substrates. The male/female activity ratio as well as the induction factor vary with the ... [more ▼]
Steroid-16α-hydroxylase activities have been measured in normal and induced rat livers using four different substrates. The male/female activity ratio as well as the induction factor vary with the substrate indicating that steroid-16α-hydroxylase activity is a heterogenous enzyme. Experiments using specific inhibitors led to the conclusion that steroid-16α-hydroxylase is supported by at least two cytochrome P-450 forms, different from the cytochrome P-448. [less ▲]Detailed reference viewed: 20 (7 ULg)