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
See detailPreliminary analysis of high-resolution spectra for UM 673 A & B
Smette, A.; Surdej, Jean ULg; Shaver, P. A. et al

in Mellier, Y.; Fort, B.; Soucail, G. (Eds.) Gravitational Lensing (1990)

Not Available

Detailed reference viewed: 7 (2 ULg)
Full Text
Peer Reviewed
See detailPreliminary Analysis of the TCP Behavior in 802.16 Networks
Perez, Jesus Arturo,; Donnet, Benoît ULg; Bonaventure, Olivier

in 1st WEIRD Workshop on WiMAX, Wireless and Mobility (2007, May)

Currently, broadband wireless access is gaining a great deal of interest from the networking research community. Particularly, the recently standardized WiMAX presents interesting perspectives, notably ... [more ▼]

Currently, broadband wireless access is gaining a great deal of interest from the networking research community. Particularly, the recently standardized WiMAX presents interesting perspectives, notably due to its capacity to offer consistent bandwidth and therefore consistent QoS. However, the behavior of network protocols, such as TCP, has not been studied in detail in a WiMAX environment. This is a problem that could slow down the widespread deployment of WiMAX. In this paper, we present preliminary results of the performance of TCP in a pre-WiMAX network. We are interested in the RTT and the relationship between the delay and packet loss rate. We find that TCP presents an acceptable cyclic behavior but with a high percentage of packet loss, 6.2%. We further notice some burst packet losses that vary in size and duration. Some of these bursts correspond to a packet loss rate of 100% during periods of up to one second. [less ▲]

Detailed reference viewed: 242 (0 ULg)
Full Text
Peer Reviewed
See detailPreliminary assessment of the genetic population structure of the enigmatic species Laonastes aenigmamus (Rodentia: Diatomyidae)
Rivière-Dobigny, T.; Herbreteau, V.; Khamsavath, K. et al

in Journal of Mammalogy (2011), 92(3), 620-628

Described in 2005, Laonastes aenigmamus is the only species of Diatomyidae. The known distribution of this rodent encompasses only the rugged mountains of the Khammouan karst in central Lao People's ... [more ▼]

Described in 2005, Laonastes aenigmamus is the only species of Diatomyidae. The known distribution of this rodent encompasses only the rugged mountains of the Khammouan karst in central Lao People's Democratic Republic. We used a sample of 52 specimens to survey population structure by sequencing 887 base pairs of the cytochrome-b gene. The overall haplotype diversity was low (0.789 ± 0.039 SD), with 14 haplotypes identified, whereas the nucleotide diversity was high (0.015 ± 0.008 SD). Phylogenetic and haplotypic network reconstructions revealed 3 well-supported and rather divergent lineages with mutational steps ranging from 28 to 32. Identified haplotype groups correspond to localities, suggesting that populations of L. aenigmamus are geographically structured. Mismatch distributions suggest population stability. An exact test for population differentiation confirms a significant level of differentiation. Taking into account human pressure increasingly threatening this ecosystem, we provide preliminary insights on the genetically discrete population structure of this enigmatic mammal species. © American 2011 Society of Mammalogists. [less ▲]

Detailed reference viewed: 14 (0 ULg)
Full Text
Peer Reviewed
See detailPreliminary assessment of the risk linked to furan ingestion by babies consuming only ready-to-eat food
Scholl, Georges ULg; Humblet, Marie-France ULg; Scippo, Marie-Louise ULg et al

in Food Additives & Contaminants. Part A. Chemistry, Analysis, Control, Exposure & Risk Assessment (2013), 30(4), 654-659

The risk linked to furan ingestion has been assessed in previous papers for Belgian adults and children (Scholl et al., 2012b; Scholl et al., 2012c). The present paper focuses on infants consuming only ... [more ▼]

The risk linked to furan ingestion has been assessed in previous papers for Belgian adults and children (Scholl et al., 2012b; Scholl et al., 2012c). The present paper focuses on infants consuming only ready-to-eat baby food. As there is no Belgian baby dietary database, the furan exposure assessment was carried out by using Italian infant consumption database and Belgian contamination data. The estimated daily intake (EDI) was calculated according to a deterministic methodology. It involved 42 commercially available ready-to-eat baby food and 36 baby consumption records. The mean EDI was 1,460 ng * (kgb.w.*day)-1 which is 3.8 times higher than the 381 ng * (kgb.w.*day)-1 reported for Belgian adults, and 3.5 times higher than the 419 ng * (kgb.w. * day)-1 measured for Belgian children. To assess and characterize the risk for babies exposure the Margin of Exposure (MoE) was calculated. It highlighted that 74% of infants have a MoE below 1,000, with a minimum of 140. However, these are only preliminary results as they were calculated from a very small dataset and the infant cytochrome P450 activity is significantly different compared to the adult. Therefore, the risk linked to furan ingestion by babies should be assessed in a different manner. To this end, additional data regarding a baby diet as well as a better understanding of furan toxicity for babies are needed to characterize more accurately the risk for infants. [less ▲]

Detailed reference viewed: 78 (32 ULg)
Full Text
Peer Reviewed
See detailPreliminary characterisation of a transgenic mouse with selective Igf2 depletion in the thymic epithelium
Mottet, Marie ULg; Martens, Henri ULg; Renard-Charlet, Chantal et al

in Scandinavian Journal of Immunology (2011, April)

Detailed reference viewed: 57 (14 ULg)
See detailPreliminary characterization of banana mild mosaic virus isolates from Colombia, the Philippines and Burundi
Reichel, H.; Martinez, A. K.; Arroyave, J. A. et al

Poster (2004)

Detailed reference viewed: 32 (2 ULg)
Full Text
Peer Reviewed
See detailPreliminary characterization of jejunocyte and colonocyte cell lines isolated by enzymatic digestion from adult and young cattle.
Loret, Suzanne; Rusu, Dorina; Moualij, Benaissa El et al

in Research in Veterinary Science (2009), 87(1), 123-32

In the present study we developed an enzymatic approach (through the use of collagenase and dispase) to isolate bovine intestinal epithelial cells. Using this method, freshly isolated jejunocytes could be ... [more ▼]

In the present study we developed an enzymatic approach (through the use of collagenase and dispase) to isolate bovine intestinal epithelial cells. Using this method, freshly isolated jejunocytes could be distinguished from simultaneously isolated colonocytes, as the jejunocytes specifically exhibited the small intestinal peptidase gene transcript, as well as an active alkaline phosphatase. The transformation of both types of cell suspension was performed by retroviral infection, using reproduction-defective viruses bearing the gene coding for the large T antigen of the leukaemia simian virus (SV40). The success of the transfection was demonstrated by (1) a significant increase in cell passage numbers (52-53 vs. 7 passages for non-transfected cells), (2) the detection of both the large T transcript and the large T antigen in transformed cells. Possible contamination and progressive substitution of bovine primocultures by non-bovine lineages available in the laboratory was excluded, as the transformed cells presented a bovine typical karyotype. Most transfected cells kept an epithelial morphology after transformation. They also maintained the expression of FABP and enterocyte specific enzymes (brush-border associated maltase and IAP). However, levels of specific activity of these enzymes were low, suggesting that cell differentiation is not completely achieved under the applied culture conditions. [less ▲]

Detailed reference viewed: 50 (8 ULg)
Full Text
Peer Reviewed
See detailPreliminary Characterization of monovarietal virgin olive oils produced in eastern area of Morocco
Mansouri, F.; Ben Moumen, A.; Lopez, G. et al

in Book of Proceedings InsideFood Symposium (2013, April)

Traditional olive oil production is limited by its high cost, mainly due to labour expenses for harvesting and pruning. New olive cultivars (e.g. Arbequina, Arbosana, Koroneiki) with greater adaptability ... [more ▼]

Traditional olive oil production is limited by its high cost, mainly due to labour expenses for harvesting and pruning. New olive cultivars (e.g. Arbequina, Arbosana, Koroneiki) with greater adaptability to modern irrigated high-density orchards and producing good quality olive oils are highly demanded by an olive oil industry in continuous change The aim of this study is the characterization of monovarietal virgin olive oils from three cultivars (Arbequina, Arbosana and Koroneiki) recently introduced in east of Morocco, and the comparison with traditional local Picholine Marocaine olive oil. Several analytical parameters were evaluated; including quality index, Triacylglycerol, fatty acids, phenolic and chlorophyll contents and oxidative stability. Significant differences between the analysed olive oils were detected. Olive oils from Koroneiki and Arbosana cultivars had higher values of oleic acid (respectively 76.24 and 75.68 %); Picholine olive oil, had the lowest one 67.49%. Koroneiki olive oil was noteworthy for its higher content of phenolic compounds (459.48 mg/ kg) and a high oxidative stability (93.16 h). We concluded that the recently introduced cultivars are well adapted to the eastern area of Morocco and could be of great interest for producing monovarietal olive oils. [less ▲]

Detailed reference viewed: 40 (2 ULg)
See detailPreliminary characterization of the promoter and CIS-regulatory elements of the MEN1 gene
Vanbellinghen, Jean-François ULg; Beckers, Albert ULg; Poncin, J.

in 7th International workshop on Multiple Endocrine Neoplasia - Abstract book (1999)

Detailed reference viewed: 3 (0 ULg)
See detailPreliminary characterization of the promoter and CIS-regulatory elements of the MEN1 gene
Vanbellinghen, Jean-François ULg; Beckers, Albert ULg; Poncin, J.

in The 6th International Pituitary Congress - Abstract book (1999)

Detailed reference viewed: 3 (0 ULg)
See detailPreliminary classification of the bovine respiratory complex into different levels of severity
Coghe, Joost; Uystepruyst, Christophe; Bureau, Fabrice ULg et al

in Bovine Practitioner (1999), 33(1), 85-87

Despite prophylactic measures, mainly including vaccination programs and management measures, respiratory disease remains the major cause of economic losses in the bovine species. Choice of treatment is ... [more ▼]

Despite prophylactic measures, mainly including vaccination programs and management measures, respiratory disease remains the major cause of economic losses in the bovine species. Choice of treatment is currently mainly based on the clinicians' personal experience. A theoretical method has been proposed earlier to classify this syndrome into four grades of severity : Grade 1, subclinical disease (no treatment); Grade 2, compensated clinical disease (antibiotics only); Grade 3, noncompensated clinical disease (antibiotics + anti inflammatory drugs); and Grade 4, irreversible clinical disease (no treatment). In order to realize this theoretical classification under field conditions, three techniques, each one evaluating the oxygen transport chain at a différent level, have been studied and validated, i.e. pulse oximetry, lactate dosage and the lobeline test. Afterwards, measurements were performed on calves suffering from acute respiratory disease and a preliminary classification was established. This novel approach could orientate and economize therapeutic strategies in bovine respiratory disease. [less ▲]

Detailed reference viewed: 50 (6 ULg)
Full Text
Peer Reviewed
See detailPreliminary clinical application of a mathematical model for interpreting dehydroepiandrosterone-sulfate loading test in late pregnancy.
Thoumsin, H. J.; Albert, Adelin ULg; Duvivier, J.

in Journal of Perinatal Medicine (1978), 6(1), 32-8

Detailed reference viewed: 10 (1 ULg)
Full Text
Peer Reviewed
See detailPreliminary Clinical Assessment of a Gentamicin-Loaded Monoolein Gel Intended to Treat Chronic Osteomyelitis
Ouédraogo, M; Da, C.S; Nacoulma, I.S et al

in Trends in Medical Research (2008), 3(2), 82-89

The aim of this current study was to perform a preliminary clinical assessment of efficacy and safety of a biodegradable gentamicin-loaded monoolein gel. An open single dose, one treatment study including ... [more ▼]

The aim of this current study was to perform a preliminary clinical assessment of efficacy and safety of a biodegradable gentamicin-loaded monoolein gel. An open single dose, one treatment study including 19 patients with chronic osteomyelitis caused by a microorganism sensitive to gentamicin was conducted. After surgical curettage of the infected bone, the dead space was filled in with the gentamicin-loaded monoolein gel. To prevent post-operative septicaemia, a systemic antibiotherapy was prescribed for 3 days following the operation. Clinical, biological and radiological follow-up was performed to assess the efficacy and the safety of the treatment. After a follow-up period ranging from 2 to 12 months, all 19 patients included in the study felt well. Eighteen patients recovered from chronic osteomyelitis without adverse events. The wound of one patient whose bone was exposed did not scar over after 10 months. However, it was no longer infected. In conclusion, gentamicin-loaded monoolein gel was efficacious in treating chronic osteomyelitis without side-effects. [less ▲]

Detailed reference viewed: 35 (3 ULg)
Full Text
Peer Reviewed
See detailPreliminary data from the Liège Screening programme suggests the reported decline in AAA prevalence is not global
Makrygiannis, Georgios ULg; EL HACHEMI, Mounia ULg; Labalue, Philippe et al

in Aorta (2014, October 01), 2(5), 212253

Background: Population based studies have shown evident benefit in terms of mortality from screening for Abdominal Aortic Aneurysm (AAA) among men aged over 65. However, recent studies from USA, UK and ... [more ▼]

Background: Population based studies have shown evident benefit in terms of mortality from screening for Abdominal Aortic Aneurysm (AAA) among men aged over 65. However, recent studies from USA, UK and Sweden suggest a decrease in the prevalence of AAA in the general population. Whether these findings are generalizable for the rest of Europe is unknown. Thus we decided to set up a screening program in order to detect AAA in Liege, Belgium. Material and Methods: During our ongoing study, over a first 3-month period, abdominal aortic ultrasound was performed on 541 participants, (198 women 343 men) to measure the maximal suprarenal and infrarenal aortic outer-outer diameter as well as the maximal diameter of the common iliac arteries. Moreover, we have measured arm and ankle blood pressure in each subject and the clinical characteristics of the patients, were collected. Results: The overall AAA prevalence was 4.62% (n = 25). In female participants aged ≥ 74 years the AAA prevalence amounted 1.01 %. While in male patients aged ≥ 65 years, it rose to 6.71%. Statistical analysis showed that male gender, aging, history of ischemic heart diseases, hyperlipidemia and varicose veins were significantly associated with AAA. Conclusion: Despite a reported declining prevalence of AAA in some recent population-based studies, we found that the prevalence of AAA in Liège population remains high in men aged 65 years or more. The prevalence of AAA seems to vary in different geographical regions. However, we need a larger sample to confirm our preliminary findings. [less ▲]

Detailed reference viewed: 10 (1 ULg)
Full Text
See detailPreliminary data on plicathyridines (Brachiopoda) from the Frasnian of southern Belgium and the Middle East (Afghanistan, Iran)
Mottequin, Bernard ULg; Marion, Jean-Marc ULg; Brice, Denise

in Documents de l’Institut Scientifique (Rabat) (2013), 26

Detailed reference viewed: 20 (10 ULg)