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 detailEffects of an enriched environment on subsequent fear reactions of lambs and ewes.
Vandenheede, Marc ULg; Bouissou, Marie-France

in Developmental Psychobiology (1998), 33(1), 33-45

Detailed reference viewed: 7 (1 ULg)
Peer Reviewed
See detailEffects of an enriched environment on subsequent fear reactions of lambs and their mothers.
Vandenheede, Marc ULg; Bouissou, Marie-France

in Applied Animal Behaviour Science (1995), 44

Detailed reference viewed: 4 (0 ULg)
Full Text
Peer Reviewed
See detailEffects of an experimental Trypanosoma congolense infection on the reproductive performance of West African Dwarf goats.
Faye, Dethie; Sulon, Joseph ULg; Kane, Yaghouba et al

in Theriogenology (2004), 62(8), 1438-51

Thirty-six West African Dwarf (WAD) goats were used to assess the effects of an experimental Trypanosoma congolense infection on their reproductive system. Estrous cycles were synchronised and when ... [more ▼]

Thirty-six West African Dwarf (WAD) goats were used to assess the effects of an experimental Trypanosoma congolense infection on their reproductive system. Estrous cycles were synchronised and when confirmed pregnant (n = 31), the does were randomly allocated into control and trypanosome-infected groups. After infection, the animals were carefully observed till parturition. Trypanosome infection caused an increase of rectal temperature, a significant drop in PCV (infected: 23.3 +/- 0.3%; control: 28.5 +/- 0.4%; P < 0.0001) and abortions in 27.8% of the infected does. Kids born from infected does had a lower birth weight than kids born from control goats (0.9 +/- 0.1 kg versus 1.6 +/- 0.1 kg; P < 0.0001). Eight out of 13 kids (61.5%) that were born alive from infected does died during their first week of life. Plasma pregnancy-associated glycoprotein (PAG) and progesterone concentrations were lower in the infected animals than in the controls. In general, PAG concentration in does which aborted dropped before abortion. Our results revealed that artificial T. congolense infection affected reproductive performance of WAD goats with abortions, premature births and perinatal losses being observed. Neither transplacental transmission of T. congolense nor histopathological lesions of the placenta could be demonstrated. [less ▲]

Detailed reference viewed: 22 (0 ULg)
Full Text
Peer Reviewed
See detailEffects of an intensive communications strategies on postmenopausal osteoporosis awareness in women
Tellier, V; Ben Sedrine, Wafa ULg; Gosset, Christiane ULg et al

in Arthritis and Rheumatism (1999), 42(S1), 356

Detailed reference viewed: 6 (2 ULg)
Full Text
Peer Reviewed
See detailEffects of an observation training program on feedback. Study of several cases
Cloes, Marc ULg; Hilbert, Jean-Marie; Piéron, Maurice

in Paré, Claude (Ed.) Better teaching in physical education? Think about it! (1995, May)

As frequently pointed out, information given to learners about their performance favourably influences their achievement. This was confirmed in the motor learning area and was also found in several ... [more ▼]

As frequently pointed out, information given to learners about their performance favourably influences their achievement. This was confirmed in the motor learning area and was also found in several studies dealing with teaching effectiveness. These studies have reinforced the significance of feedback for teachers eager to improve the performance of their pupils. ... [less ▲]

Detailed reference viewed: 23 (3 ULg)
Full Text
Peer Reviewed
See detailEffects of an original training program in healthy elderly subjects
Maquet, Didier ULg; BRONFORT, Stéphanie ULg; LECART, Marie-Paule ULg et al

in Annals of the Rheumatic Diseases (2010, June), 69(Suppl 3), 313

Detailed reference viewed: 55 (15 ULg)
Full Text
See detailEffects of androgenic and anti-androgenic substances on the freshwater gastropod Lymnaea stagnalis
Giusti, Arnaud ULg; Ducrot, Virginie; Joaquim-Justo, Célia ULg et al

Poster (2010, May 25)

Knowledge on the impacts of endocrine disrupting chemicals (EDCs) on gastropods is scarce and their mechanisms of action are still poorly understood. In this study, effects of 3 androgens (tributyltin ... [more ▼]

Knowledge on the impacts of endocrine disrupting chemicals (EDCs) on gastropods is scarce and their mechanisms of action are still poorly understood. In this study, effects of 3 androgens (tributyltin, testosterone and fenitrothion), 2 anti-androgens (cyproterone acetate and vinclozolin) and 1 estrogen (chlordecone) on growth and reproduction were investigated in the hermaphrodite gastropod Lymnaea stagnalis. [less ▲]

Detailed reference viewed: 75 (6 ULg)
Peer Reviewed
See detailEffects of androgens and oestrogens on the behaviour of chicks in an imprinting situation.
Balthazart, Jacques ULg; de Rycker, C.

in Zeitschrift für Tierpsychologie (1979), 49(1), 55-64

The behavioural effects of testosterone propionate (TP), 5alpha-dihydrotestosterone (DHT) and oestradiol benzoate (OB) were investigated in day-old chicks during imprinting sessions to a duck model. TP ... [more ▼]

The behavioural effects of testosterone propionate (TP), 5alpha-dihydrotestosterone (DHT) and oestradiol benzoate (OB) were investigated in day-old chicks during imprinting sessions to a duck model. TP increased the duration of peeping while inhibiting the following reaction and the twitters. DHT had more or less the same effects while OB induces the reverse behavioural changes. The behavioural effects of hormone injections agree with behavioural sex differences observed in non-injected animals: males peep more than females which on the other hand produce more twitters. This could be related to sex differences in the hormonal status of the birds at hatching, as it is known that during incubation male chick embryos have higher plasma testosterone levels than females of corresponding ages. [less ▲]

Detailed reference viewed: 6 (0 ULg)
Full Text
Peer Reviewed
See detailThe effects of angry and happy expressions on recognition memory for unfamiliar faces in delusion-prone individuals
Laroi, Frank ULg; D'Argembeau, Arnaud ULg; Van der Linden, Martial ULg

in Journal of Behavior Therapy & Experimental Psychiatry (2006), 37(4), 271-282

Numerous studies suggest a cognitive bias for threat-related material in delusional ideation. However, few studies have examined this bias using a memory task. We investigated the influence of delusion ... [more ▼]

Numerous studies suggest a cognitive bias for threat-related material in delusional ideation. However, few studies have examined this bias using a memory task. We investigated the influence of delusion-proneness on identity and expression memory for angry and happy faces. Participants high and low in delusion-proneness were presented with happy and angry faces and were later asked to recognise the same faces displaying a neutral expression. They also had to remember what the initial expressions of the faces had been. Remember/know/guess judgments were asked for both identity and expression memory. Results showed that delusion-prone participants better recognised the identity of angry faces compared to non-delusional participants. Also, this difference between the two groups was mainly due to a greater number of remember responses in delusion-prone participants. These findings extend previous studies by showing that delusions are associated with a memory bias for threat-related stimuli. [less ▲]

Detailed reference viewed: 30 (2 ULg)
Peer Reviewed
See detailEffects of antimitotic agents either free or bound to DNA on mouse peritoneal macrophages cultivated in vitro.
Heinen, Ernst ULg

in Virchows Archiv. B : Cell pathology (1978), 27(1), 79-87

Mouse peritoneal macrophages were cultivated in vitro and treated with ethidium bromide (EB) or with cis-dichloro-diammine platinum (II) (cis-Pt). EB provokes strong cytological alterations and cell ... [more ▼]

Mouse peritoneal macrophages were cultivated in vitro and treated with ethidium bromide (EB) or with cis-dichloro-diammine platinum (II) (cis-Pt). EB provokes strong cytological alterations and cell degeneration; cis-Pt was not toxic under our experimental contitions. EB-DNA complex penetrates into the macrophages, is liberated from DNA in vacuoles, then diffuses into the cell and is highly cytotoxic. Cis-Pt-DNA complex also penetrates into the cells, but cis-Pt cannot be released from DNA, cis-Pt-DNA complex accumulates inside cytoplasmic vacuoles but has no cytotoxic activity. [less ▲]

Detailed reference viewed: 10 (1 ULg)
Full Text
Peer Reviewed
See detailEffects of antioxidants on interleukin-1β, nitric oxide and prostaglandin E2 production by human chondrocytes
Mathy-Hartert, M; Ayache, N; Boumediene, K et al

in Osteoarthritis and Cartilage (2000), 8

Detailed reference viewed: 8 (1 ULg)
Full Text
Peer Reviewed
See detailEffects of Apomorphine on Sexual Behavior in Male Quail
Absil, Philippe ULg; Das, S.; Balthazart, Jacques ULg

in Pharmacology, Biochemistry & Behavior (1994), 47(1), 77-88

In the rat, dopamine (DA) facilitates male copulatory behavior. Indirect evidence based largely on neuroanatomical data suggest that in quail DA is also implicated in the control of male reproductive ... [more ▼]

In the rat, dopamine (DA) facilitates male copulatory behavior. Indirect evidence based largely on neuroanatomical data suggest that in quail DA is also implicated in the control of male reproductive behavior but there is no pharmacological evidence to support this conclusion. To test this idea, castrated testosterone (T)-treated male quail were injected with various doses of the dopaminergic agonist apomorphine (APO) in the range 1-10,000 micrograms/kg. The sexual behavior of birds was recorded starting 15 min after APO injection for a duration of 30 min. A dose-dependent inhibition of male reproductive behavior that lasted for the entire duration of the test was observed. In a second experiment, gonadectomized T-treated male Japanese quail were injected daily with APO (0, 10, or 1,000 micrograms/kg) during 8 days. Their sexual interactions with a partner were quantified either 24 h or 15 min after the last injection. No influence of the treatment on copulatory behavior was observed 24 h after the last injection, but a strong inhibition was present when the test was performed 15 min after. To research whether the inhibitory effects of APO were due to a preferential action on D2 presynaptic autoreceptors, male quail were pretreated with two different D2 antagonists (spiperone or pimozide; 0.5 or 2 mg/kg) before being injected with APO (100 micrograms or 1 mg/kg). Spiperone facilitated male sexual behavior but did not suppress the inhibitory effect of APO. No significant effect of pimozide was observed. These results support the notion that DA modulates male sexual activity in the Japanese quail. The specific role of the different dopaminergic receptor subtypes remains, however, to be elucidated. [less ▲]

Detailed reference viewed: 8 (0 ULg)
Peer Reviewed
See detailEffects of Arbitrary Focal Spot Intensity Distribution, Detector Width, and Scanning Eccentricity in X-ray Computed Tomography
Verly, Jacques ULg

in IEEE Transactions on Acoustics, Speech, and Signal Processing (1981), ASSEP-29(1), 98-106

Detailed reference viewed: 10 (0 ULg)
Full Text
Peer Reviewed
See detailEffects of aripiprazole on serum lipids, a comparison with patients started on statin
Hanssens, L.; De Hert, M.; Van Eyck, D. et al

in Schizophrenia Research (2006, January), 81(Suppl. S), 135

Detailed reference viewed: 13 (4 ULg)
Full Text
Peer Reviewed
See detailEffects of Aroclor 1254 on oxidative stress in developing Xenopus laevis tadpoles.
Gillardin, Virginie; Silvestre, Frederic; Divoy, Celine et al

in Ecotoxicology & Environmental Safety (2009), 72(2), 546-51

Over the last decades, amphibians decline has been reported worldwide. Exposure to polychlorinated biphenyls (PCBs) is one of the possible causes in addition to climate changes, UV-radiation or habitat ... [more ▼]

Over the last decades, amphibians decline has been reported worldwide. Exposure to polychlorinated biphenyls (PCBs) is one of the possible causes in addition to climate changes, UV-radiation or habitat destruction. In the present study, we tested the hypothesis that PCBs could induce oxidative stress in young tadpoles. Developing Xenopus laevis were exposed from 2- to 5-d postfertilization (pf) to 0.1 or 1 mg/l of Aroclor 1254. Lipid peroxidation and antioxidant systems (SOD, CAT, GST, GPx, GR activities and t-GSH level) were investigated in whole organisms. Exposure to both concentrations did not impact on the survival and development whereas the average body weight decreased. Exposure to 1 mg/l of Aroclor 1254 induced a significant (p<0.05) increase of GST activity when compared to controls 0 and DMSO. The other antioxidant enzymes and LPO evaluation remained unchanged. Our results demonstrate that exposure of X. laevis tadpoles to environmental concentrations of Aroclor 1254 interfere with normal growth. They also highlight that very young X. laevis tadpoles express antioxidant systems. [less ▲]

Detailed reference viewed: 21 (0 ULg)
Full Text
Peer Reviewed
See detailThe effects of aromatase inhibition on testosterone-dependent conditioned rhythmic cloacal sphincter movements in male Japanese quail
Cornil, Charlotte ULg; Holloway, K. S.; Taziaux, Mélanie ULg et al

in Physiology & Behavior (2004), 83(1), 99-105

Male Japanese quail produce a foam that, along with semen, is transferred to the quail hen during copulation. This foam has been reported to increase fertility, prolong sperm motility, and enhance sperm ... [more ▼]

Male Japanese quail produce a foam that, along with semen, is transferred to the quail hen during copulation. This foam has been reported to increase fertility, prolong sperm motility, and enhance sperm competition. Action of the cloacal sphincter muscles in response to visual exposure to a female produces the foam. The rhythmic cloacal sphincter movements (RCSM) responsible for foam production in male quail is elicited by a conditioned stimulus (CS) previously paired with access to a quail hen. These conditioned RCSM are testosterone-dependent. The present experiment was conducted to explore whether, as is the case with most other testosterone-dependent male sexual behaviors in the quail, conditioned RCSM are mediated by the aromatization of testosterone. Castrated, testosterone-treated male quail were presented with paired presentations of an arbitrary focal CS and visual access to a female. Once conditioned RCSM had developed, subjects received twice daily injections of the aromatase inhibitor Vorozole(TM) (R083842) during a series of extinction test presentations of the CS. Injections of Vorozole(TM) significantly decreased the number of RCSM elicited by a sexual CS. This decrease was specific to sexual RCSM; cloacal sphincter movements that occurred following defecation were not affected by Vorozole. Conditioned sexual RCSM are therefore mediated by the aromatization of testosterone, most likely due to effects on central aromatase activity related to sexual motivation. (C) 2004 Elsevier Inc. All rights reserved. [less ▲]

Detailed reference viewed: 30 (6 ULg)
Full Text
Peer Reviewed
See detailEffects of aromatase mutation (ArKO) on the sexual differentiation of kisspeptin neuronal numbers and their activation by same versus opposite sex urinary pheromones.
Bakker, Julie ULg; Pierman, Sylvie; Gonzalez-Martinez, David

in Hormones and Behavior (2010), 57(4-5), 390-5

Pheromones have been shown to induce sexually dimorphic responses in LH secretion. Here we asked whether the sexually dimorphic population of kisspeptin neurons in the rostral periventricular area of the ... [more ▼]

Pheromones have been shown to induce sexually dimorphic responses in LH secretion. Here we asked whether the sexually dimorphic population of kisspeptin neurons in the rostral periventricular area of the third ventricle (RP3V) could relay sexually dimorphic information from the olfactory systems to the GnRH system. Furthermore, we analyzed the effects of aromatase mutation (ArKO) and thus the role of estradiol on RP3V kisspeptin neuronal numbers and on the response of these kisspeptin neurons to same- versus opposite-sex urinary pheromones. Exposure to male but not female urinary odors induced Fos protein in kisspeptin neurons in the RP3V of female wildtype (WT) mice, suggesting that these kisspeptin neurons may be part of the neural circuitry that relays information from the olfactory brain to the GnRH system in a sexually dimorphic manner. Male pheromones induced Fos in kisspeptin neurons in ArKO females, albeit significantly less compared to WT females. The sexual differentiation of kisspeptin neuronal number was lost in ArKO mice, i.e. the number of kisspeptin-immunoreactive neurons in the RP3V of ArKO females was as low as in male mice, whereas male ArKO mice had somewhat increased numbers of kisspeptin neurons. These results suggest that the sex difference in kisspeptin neuronal number in WT mice reflects an organizational action of estradiol in females. By contrast, the ability of male urinary pheromones to activate kisspeptin neurons in WT females may not depend on the organizational action of estradiol since ArKO females still showed some Fos/kisspeptin co-activation. [less ▲]

Detailed reference viewed: 15 (0 ULg)