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See detailKey role of metal-coordination in cobalt-mediated radical polymerization of vinyl acetate
Debuigne, Antoine ULg; Poli, Rinaldo; Jérôme, Robert ULg et al

in Matyjaszewski, Krzysztof (Ed.) Controlled/living radical polymerization: progress in RAFT, DT, NMP & OMRP (2009)

Cobalt mediated radical polymerization (CMRP) of vinyl acetate (VAc) follows a reversible termination mechanism when initiated from a preformed alkyl-cobalt(III) complex. In these particular conditions ... [more ▼]

Cobalt mediated radical polymerization (CMRP) of vinyl acetate (VAc) follows a reversible termination mechanism when initiated from a preformed alkyl-cobalt(III) complex. In these particular conditions, CMRP functions as a stable free radical process and fine tuning of the Co-C bond strength becomes crucial. Increase of temperature and addition of molecules, such as water, dimethylformamide and dimethylsulfoxide, able to coordinate the cobalt complex appeared as efficient strategies to weaken the Co-C bond and thus to speed up the polymerization while maintaining a very good control of the VAc polymerization. The key role of metal-coordination was investigated by kinetic measurements combined with DFT calculations. [less ▲]

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See detailThe key role of nitrones in the controlled radical polymerization of vinyl monomers
Sciannamea, Valérie

Doctoral thesis (2005)

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See detailKey roles for metal transport proteins in naturally selected Zn/Cd hyperaccumulation and tolerance in A. halleri
Talke, Ina N.; Hanikenne, Marc ULg; Ertych, N. et al

Poster (2007, June 26)

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See detailKey roles of LFA-1 in leukocyte migration and immune response
Zecchinon, Laurent ULg; Fett, Thomas ULg; Vanden Bergh, Philippe ULg et al

in Clinical & Applied Immunology Reviews (2006), 6

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See detailThe Key
Pagnoulle, Christine ULg

in Pagnoulle, Christine (Ed.) Writing (on) Short Stories (1997)

This, for once, is a creative text, in a collection that combines creation and criticism.

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See detailKey-Note Speaker about: The political participation of immigrants in the formal political system
Martiniello, Marco ULg

Scientific conference (1999, October 31)

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See detailKeynote Lecture: Past and current research trends in ORC power systems
Quoilin, Sylvain ULg

Speech/Talk (2015)

The past years have seen an almost-exponentially increasing number of published papers in the ORC research field. This profusion of publications sometimes makes it difficult to get a global picture of the ... [more ▼]

The past years have seen an almost-exponentially increasing number of published papers in the ORC research field. This profusion of publications sometimes makes it difficult to get a global picture of the main challenges and ongoing research. Recent literature has also been characterized by a certain lack of originality, the same methods and approaches being repeated multiple times with few new relevant insights. It is therefore of primary importance to highlight the state-of-the-art and foster new and original research, potentially resulting in new technological improvements. This keynote provides an overview of the state of the art and of the main research trends in ORC power systems. It does not aim at covering all research fields, but highlights and describes a few relevant topics originating from the previous ORC conferences and from the scientific literature. The main methods, mathematical tools and results are described in such a way to provide useful information for the replication of such studies. Recommendations are finally formulated, together with an open discussion regarding possible relevant future contributions in ORC research. [less ▲]

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See detailKeynote speech: Revisiting the Social Economy through Social Entrepreneurship
Defourny, Jacques ULg

Conference (2014, November 18)

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See detailKeys to promote Good Practices in ODL by a TECC Approach (Training Embedded Coached Course Construction): Illustrations through a Postgraduate Degree and an Annual Competitive Call
Poumay, Marianne ULg

in Educational Media International (2003), 40(3-4), 229-237

The article presents two parallel initiatives contributing to an open and distance learning (ODL) deployment, comparing them using the LabSET Keys to implement a Training Embedded Coached Course ... [more ▼]

The article presents two parallel initiatives contributing to an open and distance learning (ODL) deployment, comparing them using the LabSET Keys to implement a Training Embedded Coached Course Construction (TECCC) approach. The article examines some of the challenges faced by the support to trainers using the Web as an instructional tool to facilitate learner-centered practices. It includes a definition of "quality courses". [less ▲]

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See detailKeys to the identification of prehension and hafting traces
Rots, Veerle ULg

in Marreiros, Juan; Gibaja, Juan; Bicho, Nuno (Eds.) Use-Wear and Residue Analysis in Archaeology (2015)

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See detailKhả năng sinh trưởng và phẩm chất tinh dịch lợn đực Piétrain kháng stress nuôi tại Trung tâm giống lợn chất lượng cao - Trường Đại học Nông nghiệp Hà Nội
Ha Xuan, Bo; Do Duc, Luc ULg; Bui Van, Dinh et al

in Journal of Science and Development (2013), 11(2), 194-199

This study was carried out on 10 stress-negative Piétrain boars including 3 pigs of halothane genotype CC and 7 of CT at the pig breeding farm of Hanoi University of Agriculture in order to evaluate ... [more ▼]

This study was carried out on 10 stress-negative Piétrain boars including 3 pigs of halothane genotype CC and 7 of CT at the pig breeding farm of Hanoi University of Agriculture in order to evaluate effects of season (Spring, Summer and Autumn) and halothane genotype (CC and CT) on the production performance and semen traits. The results showed that the difference in daily average gain was not significant between CC (559.57 g/day) and CT boars (546.31 g/day). The halothane genotype did not affect semen traits (P>0.05) except ejaculation volume (P<0.001). Ejaculation volume of CC genotype (270.95ml) was higher than that of CT (220.82ml). Season had significant effect on ejaculation volume, sperm concentration and pH of semen (P<0.001) as well as total number of sperms moving straight ahead per each ejaculation (P<0.05). Semen volume was highest in autumn (293.02 ml) followed by summer (195.00 ml) and spring (190.86 ml) while this tendency was inverse for sperm concentration. Total number of sperms moving straight ahead per each ejaculation was highest in Autumn (47.15 billion) followed by Spring (45.20 billion) and lowest in Summer (36.74 billion). Semen traits of the stress-negative Piétrain boars were in accordance to the standards of technical criteria for animal breeding accoprding to the DecisionNo. 1712/QĐ-BNN-CN (Ministry of Agriculture and Rural development, Vietnam), except sperm motility and growth performance were lower than specified. [less ▲]

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See detailKhảo sát một số chỉ tiêu chất lượng thịt trâu bò
Do Duc, Luc ULg; Thanh, Nguyen Chi; Thinh, Nguyen Hoang et al

in Journal of Science and Development (2009), 7(1), 17-24

A survey was carried out on 13 Vietnamese Yellow cattle, 14 LaiSind cattle and 18 buffalos in Hanoi to estimate the quality of longissimus dorsi in terms of pH, color, drip loss, cooking loss and ... [more ▼]

A survey was carried out on 13 Vietnamese Yellow cattle, 14 LaiSind cattle and 18 buffalos in Hanoi to estimate the quality of longissimus dorsi in terms of pH, color, drip loss, cooking loss and tenderness at 6 different postmortem intervals. It was found that the pH value of longissimus dorsi was not significantly different among the 3 breeds (P>0.05), being reduced rapidly during the first 36 hours postmortem, and then stayed stable. The value was in the range that was considered to be normal. Conversely, the color values L*, a* and b* tended to increase and also stable at 36 hours postmortem, except that for LaiSind cattle at 48 hours. According to L* scale, the meat of Yellow and LaiSind cattle met the normal quality but the buffalo meat was considered to be dark cutters. The tenderness of longissimus dorsi was significantly different among the breeds (P<0.05). The value was highest at 48 hours and then decreased for LaiSind and buffalo, but for Yellow cattle the value decreased continuously after slaughtering In terms of tenderness buffalo meat and Yellow cattle meat were classified as “intermediate”, while LaiSind meat was out of this interval and classified as “tough”. Drip loss ratio was increased with the time of preservation (P<0.05). The cooking loss ratio was lowest at 12 hours and higher at the next period, but there was no significant difference among the periods after 36 hours postmotem. [less ▲]

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See detailKibaran A-type granitoids and mafic rocks generated by two mantle sources in a late orogenic setting (Burundi)
Tack, Luc; Liégeois, Jean-Paul ULg; Deblond, André et al

in Precambrian Research (1994), 68

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See detailKIC 4768731: a bright long-period roAp star in the Kepler field
Smalley, B.; Niemczura, E.; Murphy, S. J. et al

in Monthly Notices of the Royal Astronomical Society (2015), 452

We report the identification of 61.45 d[SUP]-1[/SUP] (711.2 μHz) oscillations, with amplitudes of 62.6 μmag, in KIC 4768731 (HD 225914) using Kepler photometry. This relatively bright (V = 9.17 ... [more ▼]

We report the identification of 61.45 d[SUP]-1[/SUP] (711.2 μHz) oscillations, with amplitudes of 62.6 μmag, in KIC 4768731 (HD 225914) using Kepler photometry. This relatively bright (V = 9.17) chemically peculiar star with spectral type A5 Vp SrCr(Eu) has previously been found to exhibit rotational modulation with a period of 5.21 d. Fourier analysis reveals a simple dipole pulsator with an amplitude that has remained stable over a 4-yr time span, but with a frequency that is variable. Analysis of high-resolution spectra yields stellar parameters of T[SUB]eff[/SUB] = 8100 ± 200 K, log g = 4.0 ± 0.2, [Fe/H] = +0.31 ± 0.24 and v sin i = 14.8 ± 1.6 km s[SUP]-1[/SUP]. Line profile variations caused by rotation are also evident. Lines of Sr, Cr, Eu, Mg and Si are strongest when the star is brightest, while Y and Ba vary in antiphase with the other elements. The abundances of rare earth elements are only modestly enhanced compared to other roAp stars of similar T[SUB]eff[/SUB] and log g. Radial velocities in the literature suggest a significant change over the past 30 yr, but the radial velocities presented here show no significant change over a period of 4 yr. [less ▲]

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See detailKick synchronization versus diffusive synchronization
Mauroy, Alexandre ULg; Sacré, Pierre ULg; Sepulchre, Rodolphe ULg

in Proceedings of the 51st IEEE Conference on Decision and Control (invited tutorial session) (2012, December)

The paper provides an introductory discussion about two fundamental models of oscillator synchronization: the (continuous-time) diffusive model, that dominates the mathematical literature on ... [more ▼]

The paper provides an introductory discussion about two fundamental models of oscillator synchronization: the (continuous-time) diffusive model, that dominates the mathematical literature on synchronization, and the (hybrid) kick model, that accounts for most popular examples of synchronization, but for which only few theoretical results exist. The paper stresses fundamental differences between the two models, such as the different contraction measures underlying the analysis, as well as important analogies that can be drawn in the limit of weak coupling. [less ▲]

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