426 research outputs found
Filovirus activity among selected ethnic groups inhabiting the tropical forest of equatorial Africa
Kondo Quartet
This article describes some recently obtained results on the low-energy
properties of the "Kondo quartet" model of two spin-1/2 impurities interacting
with two channels (flavours) of conduction electrons. We shall particularly
emphasize the connections between conformal field-theory methods and
bosonisation approaches, which are first illustrated on the example of the
single-impurity, two-channel Kondo problem. This article is dedicated to the
memory of Claude Itzykson, and will appear in the Proceedings of the Conference
"Advanced Quantum Field Theory", held in La Londe Les Maures, Sept. 1996 (Nucl.
Phys. B, Proc. Supp.; V.Rittenberg, J.Fr\"{o}lich and A.Schwimmer eds.).Comment: 18 pages, RevTeX3.0, 2 .ps figure
Les fièvres hémorragiques africaines d'origine virale : contribution à leur étude en République Centrafricaine
A propos de deux nouveaux cas de rhinoentomophthoromycose diagnostiqués en R.C.A. : revue de la littérature
Diaphragm pacing failure secondary to deteriorated chest wall mechanics: When a good diaphragm does not suffice to take a good breath in
AbstractDiaphragm pacing allows certain quadriplegic patients to be weaned from mechanical ventilation. Pacing failure can result from device dysfunction, neurotransmission failure, or degraded lung mechanics (such as atelectasis). We report two cases where progressive pacing failure was attributed to deteriorated chest wall mechanics. The first patient suffered from cervical spinal cord injury at age 45, was implanted with a phrenic stimulator (intrathoracic), successfully weaned from ventilation, and permanently paced for 7 years. Pacing effectiveness then slowly declined, finally attributed to rib cage stiffening due to ankylosing spondylitis. The second patient became quadriplegic after meningitis at age 15, was implanted with a phrenic stimulator (intradiaphragmatic) and weaned. After a year hypoventilation developed without obvious cause. In relationship with complex endocrine disorders, the patient had gained 31 kg. Pacing failure was attributed to excessive mechanical inspiratory load. Rib cage mechanics abnormalities should be listed among causes of diaphragm pacing failure and it should be kept in mind that a “good diaphragm” is not sufficient to produce a “good inspiration”
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