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See detailOccupational stress, work-home interference and burnout among Belgian bovine practitioners.
Hansez, Isabelle ULg; Biron, O.; Rollin, F.

Conference (2006, October 17)

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See detailOccupational stress, work-home interference and burnout among Belgian veterinary practitioners.
Hansez, Isabelle ULg; Schins, F.; Rollin, Frédéric ULg

in Irish Veterinary Journal (2008), 61(4), 233-241

There have been few formal studies on stress in veterinary surgeons and, in the rare studies available, stress is not examined jointly through the levels of job strain and job engagement, the sources of ... [more ▼]

There have been few formal studies on stress in veterinary surgeons and, in the rare studies available, stress is not examined jointly through the levels of job strain and job engagement, the sources of stress in the issue of work environment and the work-home interference. The authors’ goal in this study was to analyse job engagement, job strain, burnout, work-home interference and job stress factors among 216 Belgian veterinary surgeons. Rural practice was compared to small animal and mixed activity. The mean job strain and job engagement level in veterinary surgeons was not higher than what we found in other working populations. However, 15.6 % of the group were found to be suffering from high burnout. Rural practitioners had a lower level of job engagement than small animal veterinary surgeons. These small animal practitioners had a lower level of job strain than the mixed practitioners. The level of burnout did not differ significantly across the three types of activity. In comparison to other Belgian and Dutch workers, veterinary surgeons perceived more negative workhome interference. Bovine and mixed practitioners were the most concerned with this problem. The two most important sources of stress reported by bovine practitioners were relations to farmers and working time management (including emergencies and availability). [less ▲]

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See detailAn occupational therapist as a new professional at home: which profiles of clients are reached ?
Maggi, Patrick ULg; de Almeida Mello, Johanna; Delye, Samuel ULg et al

Poster (2013, February 22)

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See detailOccurence familiale du syndrome de Leser-Trélat
EL HAYDERI, Lara ULg; NIKKELS, Arjen ULg

in Skin Inc (2010)

L'existence du syndrome de Leser-Trélat (SLT), defini comme l'apparition rapide

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See detailOccurrence and characteristics of CS31A antigen-producing Escherichia coli in calves with diarrhoea and septicaemia in Argentina.
Mercado, E. C.; Rodriguez, Sabrina ULg; D'Antuono, A. L. et al

in Journal of Veterinary Medicine. B, Infectious Diseases & Veterinary Public Health (2003), 50(1), 8-13

CS31A is a K88-related non-fimbrial adhesin first described on Escherichia coli strains isolated from diarrhoeic and septicaemic calves. In this report, CS31A antigen was screened by immunological methods ... [more ▼]

CS31A is a K88-related non-fimbrial adhesin first described on Escherichia coli strains isolated from diarrhoeic and septicaemic calves. In this report, CS31A antigen was screened by immunological methods and confirmed by PCR among bovine E. coli isolates. In addition, CS31A-producing strains were characterized with respect to different fimbrial antigens, O-serogroup and other properties related to virulence. Faecal or tissue specimens of 100 diarrhoeic or septicaemic calves and 27 older cattle with different pathologies from 71 outbreaks or individual cases that occurred in Buenos Aires province, Argentina, were examined. CS31A + E. coli strains were isolated from 21 (21.0%) calves from 16 outbreaks or individual cases. No CS31A + E. coli was detected in samples from cattle more than 1 year old. Fimbriae F5, F41, F17a and F17b were not detected among the CS31A-producing strains. Three (14.3%) of the CS31A+ E. coli strains expressed the F17c fimbria. All of the 21 isolates exhibited at least one property of septicaemic strains (resistance to serum, production of aerobactin or colicins) but none of them demonstrated heat-stable enterotoxigenic activity. CS31A + E. coli isolates belonged to 10 serogroups, more commonly O8, O7, O17 and O21. The results obtained here confirm the worldwide distribution of CS31A antigen in bovine E. coli strains. However, CS31A + or CS31A + /F17c + E. coli were less frequently isolated than they were in North hemisphere countries. [less ▲]

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See detailOccurrence and impact of Heteropolaria (Protozoa: Ciliophora), on intensively cultured perch Perca fluviatilis
Grignard, J. C.; Mélard, Charles ULg; Baras, E. et al

in Annales Zoologici Fennici (1996), 33

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See detailOccurrence and significance of reworked palynomorphs.
Streel, Maurice ULg; Bless, M.J.M

in Mededelingen - Rijks Geologische Dienst (1980), 32(10), 69-80

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See detailOccurrence and Treatment of Bone Atrophic Non-Unions Investigated by an Integrative Approach
Geris, Liesbet ULg; Reed, Anita A.C.; Vander Sloten, Jos et al

in PLoS Computational Biology (2010), 6(9), 1000915

Recently developed atrophic non-union models are a good representation of the clinical situation in which many nonunions develop. Based on previous experimental studies with these atrophic non-union ... [more ▼]

Recently developed atrophic non-union models are a good representation of the clinical situation in which many nonunions develop. Based on previous experimental studies with these atrophic non-union models, it was hypothesized that in order to obtain successful fracture healing, blood vessels, growth factors, and (proliferative) precursor cells all need to be present in the callus at the same time. This study uses a combined in vivo-in silico approach to investigate these different aspects (vasculature, growth factors, cell proliferation). The mathematical model, initially developed for the study of normal fracture healing, is able to capture essential aspects of the in vivo atrophic non-union model despite a number of deviations that are mainly due to simplifications in the in silico model. The mathematical model is subsequently used to test possible treatment strategies for atrophic non-unions (i.e. cell transplant at post-osteotomy, week 3). Preliminary in vivo experiments corroborate the numerical predictions. Finally, the mathematical model is applied to explain experimental observations and identify potentially crucial steps in the treatments and can thereby be used to optimize experimental and clinical studies in this area. This study demonstrates the potential of the combined in silico-in vivo approach and its clinical implications for the early treatment of patients with problematic fractures. [less ▲]

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See detailOccurrence de la coccinelle asiatique (Harmonia axyridis Pallas), espèce invasive, dans les agro-habitats en 2009
Vandereycken, Axel ULg; Durieux, Delphine ULg; Joie, Emilie ULg et al

in Entomologie Faunistique = Faunistic Entomology (2010), 63(4), 251-258

La lutte contre les pucerons de manière biologique consiste entre autre à utiliser des insectes prédateurs de pucerons tels que les coccinelles. En Belgique un des auxiliaires le plus utilisé est la ... [more ▼]

La lutte contre les pucerons de manière biologique consiste entre autre à utiliser des insectes prédateurs de pucerons tels que les coccinelles. En Belgique un des auxiliaires le plus utilisé est la coccinelle à deux points (Adalia bipunctata) mais en 1997, les horticulteurs ont introduit la coccinelle asiatique (Harmonia axyridis) afin de lutter plus efficacement contre les pucerons. Cette coccinelle invasive s'est rapidement répandue dans toute la Belgique et à travers l'Europe. Afin d'évaluer son impact sur l'entomofaune des milieux agricoles, nous avons réalisé un inventaire des aphidiphages présent sur 10 sites réparti en Wallonie. Deux méthodes d'échantillonnage ont été utilisées: (1) l'utilisation de pièges collant et (2) l'observation visuelle dans des quadras d'1m². Après 10 semaines d'inventaire, nous pouvons conclure que pour l'année 2009, la coccinelle asiatique est la coccinelle la plus abondante dans les agro-écosystèmes wallons. Les cultures préférentielles dans lesquelles la coccinelle invasive a été la plus abondante sont la pomme de terre biologique et le maïs. Culture où la quantité de puceron n'est pas forcement la plus élevée. La période de reproduction de la coccinelle asiatique se situe à la mi-juillet, période d'abondance de proies dans les cultures étudiées. [less ▲]

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See detailThe occurrence of 2-hydroxy-6-methoxybenzoic acid methyl ester in Securidaca longepedunculata Fresen root bark.
Lognay, Georges ULg; Marlier, M.; Seck, D. et al

in Biotechnologie, Agronomie, Société et Environnement = Biotechnology, Agronomy, Society and Environment [=BASE] (2000), 4(2),

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See detailOccurrence of AIP Mutations in Sporidic Pituitary Adenomas and Familial Isolated Pituitary Adenomas Kindreds in Valencia, Spain
Fajardo Montanaña, C.; Daly, Adrian ULg; Tichomirowa, M. A. et al

in ENDO 2008: 90th Annual Meeting of the Endocrine Society - Abstract book (2008)

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See detailOccurrence of anthropogenic and naturally-produced organohalogenated compounds in tissues of Black Sea harbour porpoises
Weijs, Liesbeth; Das, Krishna ULg; Neels, Hugo et al

in Marine Pollution Bulletin (2010), 60

Harbour porpoises are one of the three cetacean species inhabiting the Black Sea. This is the first study to report on polybrominated diphenyl ethers (PBDEs) and naturally-produced compounds, methoxylated ... [more ▼]

Harbour porpoises are one of the three cetacean species inhabiting the Black Sea. This is the first study to report on polybrominated diphenyl ethers (PBDEs) and naturally-produced compounds, methoxylated PBDEs (MeO-PBDEs) and polybrominated hexahydroxanthene derivatives (PBHDs), in tissues (kidney, brain, blubber, liver, muscle) of male harbour porpoises (11 adults, 9 juveniles) from the Black Sea. Lipid-normalized concentrations decreased from muscle > blubber > liver > kidney > brain for the sum of polychlorinated biphenyls (PCBs) and for the sum of PBDEs. Among the naturally-produced compounds, levels of PBHDs were higher than of MeO-PBDEs, with tri-BHD and 6-MeO-BDE 47 being the dominant compounds for both groups, respectively. Concentrations of naturally-produced compounds decreased from blubber to brain, similarly to the sum of DDT and metabolites (DDXs). Concentrations of DDXs were highest, followed by PCBs, HCB, PBHDs, PBDEs and MeO-PBDEs. Levels of PCBs and PBDEs in blubber were lower than concentrations reported for harbour porpoises from the North Sea, while concentrations of DDXs were higher. [less ▲]

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See detailOccurrence of aphid predator species in both organic and conventional corn and broad bean
Vandereycken, Axel ULg; Joie, Emilie ULg; Francis, Frédéric ULg et al

in Entomologie Faunistique = Faunistic Entomology (2013), 66

Organic farming has been suggested to enhance beneficial species abundance and diversity in agrosystem habitats. In this study, the abundance of aphid predators was compared in organic and conventional ... [more ▼]

Organic farming has been suggested to enhance beneficial species abundance and diversity in agrosystem habitats. In this study, the abundance of aphid predators was compared in organic and conventional corn and broad bean fields during a two-year inventory. In both farming strategies, there were no differences between species diversity. Five aphid predator species were mainly observed: Coccinella septempunctata L. 1758 (Coleoptera: Coccinellidae), Propylea quatuordecimpunctata (L. 1758) (Coleoptera: Coccinellidae), Harmonia axyridis Pallas 1773 (Coleoptera: Coccinellidae), Chrysoperla carnea (Stephens 1836) (Neuroptera: Chrysopidae) and Episyrphus balteatus (De Geer 1776) (Diptera: Syrphidae). Differences in abundance of aphidophagous species between conventional and organic crop fields were observed even if not always in favour of the latter condition. The abundance of the five above- mentioned aphidophagous species varied for the most part according to almost all the observed parameters, including sampled year, crop and agricultural practices. In conclusion, our findings do not support organic practices in corn and broad bean as key options to increase the biodiversity and abundance of aphid natural enemies. [less ▲]

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See detailOccurrence of aphid predators in Belgian agro-ecosystems
Vandereycken, Axel ULg; Durieux, Delphine ULg; Joie, Emilie ULg et al

Poster (2011, March 06)

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See detailOccurrence of bottlenose dolphins (Tursiops truncatus) in the Río Negro Estuary, Argentina, and their mid-distance movements along the Northeast Patagonian coast
Failla, Mauricio; Seijas, Veronica; Vermeulen, Els ULg

in Latin American Journal of Aquatic Mammals (in press)

A systematic study on the presence of bottlenose dolphins (Tursiops truncatus) in the Río Negro Estuary (RNE), Patagonia Argentina, was carried out between the months March – July from 2008 to 2011. Data ... [more ▼]

A systematic study on the presence of bottlenose dolphins (Tursiops truncatus) in the Río Negro Estuary (RNE), Patagonia Argentina, was carried out between the months March – July from 2008 to 2011. Data on the dolphin’s activity patterns were gathered via an Ad Libitum focal group sampling mode accompanying dorsal fin images taken for identification and re-identification of individuals. A total effort of 188 h resulted in 58 h of positive observation of 124 dolphin groups (sightings per unit effort (SPUE) = 0.66 groups/h). Data analysis showed two main activity states for the observed groups, travelling (65%) and foraging (26%). The remaining 9% of the groups were involved in other activity states. The photo-identification effort, which started opportunistically in 2006, resulted in a catalogue of 21 individual dolphins, with a total mean re-identification rate of 9 days (max = 24 days). When comparing these pictures to the existing catalogue of Bahía San Antonio (approximately 200 km west from the study area) dorsal fins of 20 individuals could be positively matched and most (n = 17) could be subsequently re-identified in both areas, indicating their long distance movements along the North Patagonian coast during the austral autumn months. This season coincides with the lowest amount of feeding activity observed in Bahía San Antonio. This study suggests that bottlenose dolphins enter RNE, mainly during autumn, to forage. It appears that the search for food resources may be the trigger for their movement patterns along the North Patagonian coast during this season, at least for certain individuals. More research is needed to accurately confirm this hypothesis. [less ▲]

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See detailOccurrence of cardiovascular calcifications in normal, aging rats.
Roosens, B; Bala, G; Droogmans, S et al

in Experimental Gerontology (2012), 47(8), 614-9

BACKGROUND: Cardiovascular calcification is an independent predictor of morbidity and mortality and increases with age. Animal models are frequently used to investigate the underlying pathophysiology ... [more ▼]

BACKGROUND: Cardiovascular calcification is an independent predictor of morbidity and mortality and increases with age. Animal models are frequently used to investigate the underlying pathophysiology. Only scarce data regarding the effect of aging on calcifications in these animal models are available. The aim of this study is to investigate the occurrence of cardiovascular calcifications in normal, aging rats. METHODS: A mixed inbred/outbred population of 44 male Lewis/Wistar rats was studied. Group 1 of three-month-old rats, group 2 twelve-month-old, group 3 twenty-four-month-old and group 4 thirty-month-old rats. Calibrated integrated backscatter (cIB) values and blood parameters (creatinine, parathyroid hormone (PTH)) were measured, followed by ex-vivo micro-CT and histology as reference methods. RESULTS: Cardiovascular calcifications developed with age, as demonstrated by significantly increasing cIB values of the aortic valve and myocardium. This was confirmed by a significant increase in the calcified volume on ex-vivo micro-CT and in the histological calcium score. There was also a significantly higher level of creatinine and PTH with age. CONCLUSIONS: As in humans, cardiovascular calcifications progressively increase with age in the normal rat. Therefore the aging rat model could be used for studying calcifying cardiovascular disease. cIB might have a value in future studies for the early detection of subclinical calcifications in humans. [less ▲]

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