Publications by authors named "R Kuhnen"

Purpose: To evaluate the quality of breast reconstruction service at a university hospital, as assessed by the patients.

Methods: This cross-sectional study enrolled adult women who underwent immediate or delayed breast reconstruction by any technique performed at a university hospital between 1 and 24 months before the assessment. The Brazilian version of the Health Service Quality Scale (HSQS) was self-applied to the participants.

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Background: Although there is limited evidence for regulating the use of prophylactic antibiotics in reduction mammaplasty, many plastic surgeons prescribe them, even in the postoperative period. This study aimed to conduct a national survey to investigate the antibiotic prophylaxis protocols followed by Brazilian plastic surgeons in reduction mammaplasty.

Methods: An anonymous survey comprising 19 questions was sent to all 4864 active members of the Brazilian Society of Plastic Surgery (SBCP).

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We present a photoelectron imaging study of the small sodium cluster anions Na3(-), Na5(-), and Na7(-) at photon energies in the visible and near UV range (hv = 1.64-4.28 eV).

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We present an experimental study of the thermodynamics of free, size-selected water cluster anions consisting of 48 and 118 molecules. The measured caloric curves of the clusters are bulklike at low temperatures but show a well-defined, particle-size specific transition at 93+/-3 K for (H2O)48- and 118+/-3 K for (H2O)118-. At the transition temperature the heat capacity strongly increases, which marks the onset of melting.

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Although many properties of polyatomic metal clusters have been rationalized by an electron shell model resembling that used for free atoms, it remained unclear how reliable this analogy is with respect to the angular momentum eigenstate character of the electronic wave functions. We studied free size-selected negatively charged clusters of sodium atoms (Nan-) of approximately spherical shape (n = 19, 40, 55, 58, 147) by angle-resolved photoelectron spectroscopy over a broad range of photon energies (1.5 to 5 electron volts).

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