[Rhinoplasty and reconstruction of the nasal dorsum: role of an autologous graft of the concha media].

Background: Aesthetic and functional rhinoplasty can improve facial beauty. Surgical procedure may require autogenous grafts. These bone or cartilage grafts are harvested from different parts of the body.

[Endostenting using a Y-stent for hematoma after thoracic aorta surgery].

Objective: To describe the diagnostic and therapeutic management of extrinsic tracheobronchial compression after thoracic aorta surgery.

Patient And Methods: We report the case of a female patient with Marfan syndrome.

Results: A 27-year-old woman with Marfan syndrome presented respiratory distress after type III dissecting aneurysm of the descending aorta from extrinsic compression (hematoma) of the lower third of the trachea and the left bronchial stump.

[Bilateral hypopharyngocele].

Objective: Describe the management of bilateral hypopharyngocele in a trumpet player.

Material And Method: Case report of a professional trumpet player suffering from bilateral hypopharyngocele.

Results: A professional trumpet player was referred for an ORL consultation after he noticed that a bad sound was produced while he was playing associated with cervical pain.

[Inflammatory pseudotumor of the larynx in children].

Objective: Describe the management of laryngeal pseudotumor in a young boy with exclusive endoscopic resection with laser CO2 resection.

Material And Method: Case report.

Results: We report a rare case of a laryngeal pseudotumor in a child that was successfully treated with endoscopic resection with laser CO2 vaporization.

Coherent control of the effective susceptibility through wave mixing in a duplicated two-level system.

We theoretically demonstrate the coherent control of the effective susceptibility of a duplicated two-level system. The control is obtained for a linearly polarized weak field in the presence of a much stronger orthogonally polarized field. For small optical depths, the effective susceptibility chi(eff) behaves as chilin(e 2iphi) (chilin) is the linear susceptibility, phi the phase shift) allowing coherent control of the optical response.

Coherent control of light shifts in an atomic system: modulation of the medium gain.

A sequence of two femtosecond coherent pulses--a strong pi-polarized pulse and a weak sigma-polarized pulse--excite the S1/2-P1/2 transition of atomic rubidium in an optically dense vapor. The sigma pulse induces transitions between the adiabatic states with a coupling strength that is different for identically and oppositely light-shifted coupled states, and that can be modified by tuning the relative phase between the pulses. An efficient control of the medium gain for the sigma pulse is experimentally demonstrated.

[Predictive factors of facial palsy of the acoustic neurinoma after retrosigmoid surgery: 230 cases].

Objectives: To determine predictive factors influencing postoperative facial palsy during retro sigmoid approach in vestibular schwannoma surgery.

Material And Methods: Retrospective study over 230 patients with vestibular schwannoma, mostly stade I and II, operated by retro sigmoid approach, by the same oto neuro chirurgical team between 1993 and 2004. Pre and post operative parameters taken into consideration: quantitative: age and sex, audiometric parameters, duration of clinical symptoms; qualitative: tumor anatomic factors and facial nerve function according to House Brackmann classification.

Experimental demonstration of phase control of dispersion effects for an ultrashort pulse train propagating in a resonant medium.

We present an experiment in which an ultrashort pulse train propagates resonantly through anoptically dense vapor of atomic rubidium. The sequence obtained from a Fabry-Perot interferometer comprises nearly 10 regularly time-delayed and mode-locked pulses. We show that a sequence with phase shift phi = 0[2pi] between two successive pulses propagates with important temporal distortion, whereas a sequence with phi = pi[2pi] experiences few propagation effects, thus leading for the first time to our knowledge to the possibility of phase control of dispersion effects for an ultrashort pulse train.

Interferences of ultrashort free electron wave packets.

Interferences of free electron wave packets generated by a pair of identical, time-delayed, femtosecond laser pulses which ionize excited atomic potassium have been observed. Two different schemes are investigated: threshold electrons produced by one-photon ionization with parallel laser polarization and above threshold ionization electrons produced by a two-photon transition with crossed laser polarization. Our results show that the temporal coherence of light pulses is transferred to free electron wave packets, thus opening the door to a whole variety of exciting experiments.

Extent of 14C incorporation into cholesterol of infant skin fibroblasts incubated with carboxyl-labeled oleic, -linoleic or -arachidonic acid.

In order to determine the incorporation of C1-14C derived from mono- and poly-unsaturated fatty acids into cholesterol of human cells cultured in exponential phase, infant skin fibroblasts (SF) were used at the 5th passage. On Day 6, the SF were preincubated 36 h in a medium containing 5 per cent lipoprotein-deficient serum, and thereafter [1-14C] oleic, -linoleic or -arachidonic acid-without (OL1, LI1 and AR1 group SF), or with the addition of 0.25 mM cold fatty acids (OL2), LI2 and AR2 group SF).