Periodic Comet d'Arrest (1976e)

in International Astronomical Union Circulars [=IAUCs] (1976), 3010

IAUC 3010 available at Central Bureau for Astronomical Telegrams.

Periodic mass-loss episodes due to an oscillation mode with variable amplitude in the hot supergiant HD 50064

in Astronomy and Astrophysics (2010), 513

<BR /> Aims: We aim to interpret the photometric and spectroscopic variability of the luminous blue variable supergiant HD 50064 (V = 8.21). <BR /> Methods: CoRoT space photometry and follow-up high ... [more ▼]

<BR /> Aims: We aim to interpret the photometric and spectroscopic variability of the luminous blue variable supergiant HD 50064 (V = 8.21). <BR /> Methods: CoRoT space photometry and follow-up high-resolution spectroscopy with a time base of 137 d and 169 d, respectively, was gathered, analysed, and interpreted using standard time series analysis and light curve modelling methods, as well as spectral line diagnostics. <BR /> Results: The space photometry reveals one period of 37 d, which undergoes a sudden amplitude change with a factor 1.6. The pulsation period is confirmed in the spectroscopy, which additionally reveals metal line radial velocity values differing by 30 km s[SUP]-1[/SUP] depending on the spectral line and on the epoch. We estimate T[SUB]eff[/SUB] 13 500 K, log g 1.5 from the equivalent width of Si lines. The Balmer lines reveal that the star undergoes episodes of changing mass loss on a time scale similar to the changes in the photometric and spectroscopic variability, with an average value of log dot{M} â -5 (in M_ȯ yr[SUP]-1[/SUP]). We tentatively interpret the 37 d period as the result of a strange mode oscillation. Based on high-resolution spectroscopy assembled with the CORALIE spectrograph attached to the 1.2 m Euler telescope at La Silla, Chile and on CoRoT space-based photometry. The CoRoT space mission was developed and is operated by the French space agency CNES, with the participation of ESA's RSSD and Science Programmes, Austria, Belgium, Brazil, Germany, and Spain.Postdoctoral Fellow of the Fund for Scientific Research of Flanders (FWO), Belgium. [less ▲]

Périodicité de HD 10783

in Bulletin de la Société Royale des Sciences de Liège (1965), 34

The radial velocity of the magnetic star HD 10783 is shown (fig.2) to vary with the period of the luminosity and magnetic variations. The plot of the magnetic field intensity as a function of the phase ... [more ▼]

The radial velocity of the magnetic star HD 10783 is shown (fig.2) to vary with the period of the luminosity and magnetic variations. The plot of the magnetic field intensity as a function of the phase (fig.1) gives an asymmetrical curve, which, except for the sign, resembles the luminosity curve, as in other periodic magnetic variables; but the coincidence of the phases remains doubtful. The velocity varies much more rapidly just before the sharper extremum of the magnetic field. [less ▲]

Périodicités probables des étoiles Ap xi Phe et HD 30849

in Astronomy and Astrophysics (1979), 77

A few photometric observations made by Vogt and Faundez (1979) for xi Phe and HD 30849 allow to deduce that the variations are probably periodic. The most probable periods are given. These variations are ... [more ▼]

A few photometric observations made by Vogt and Faundez (1979) for xi Phe and HD 30849 allow to deduce that the variations are probably periodic. The most probable periods are given. These variations are large for Ap stars, chiefly in HD 30849, and mainly in v. [less ▲]

Périodiques papier ou périodiques électroniques : Quelles conséquences pour les politiques documentaires et le service aux usagers ?

Conference (2012, September 20)

Periodontal condition in Belgian patients with acute or chronic heart disease

in Journal of Dental Research (2002, December), 81(Sp. Iss. B), 240-240

Periodontal infections as potential risk factors for cardiovascular diseases

Poster (1997)

Periodontal infections as potential risk factors for coronary heart diseases

Poster (1997)

Periodontitis as potential risk factor for coronary heart disease

Poster (1999)

Perioperative management of a child with von Willebrand disease undergoing surgical repair of craniosynostosis: looking at unusual targets.

in Anesthesia and Analgesia (2009), 109(3), 720-4

We report the successful management of a craniosynostosis repair in a child with severe Type I von Willebrand disease diagnosed during the preoperative assessment and treated by coagulation factor VIII ... [more ▼]

We report the successful management of a craniosynostosis repair in a child with severe Type I von Willebrand disease diagnosed during the preoperative assessment and treated by coagulation factor VIII and ristocetin cofactor. Collaboration among the anesthesiologist, the neurosurgeon, the clinical pathologist, and the pediatric hematologist is important for successful management. [less ▲]