Field-programmable-gate-array-based digital frequency stabilization of low-phase-noise diode lasers.

We present the comparison of a field-programmable-gate-array (FPGA) based digital servo module with an analog counterpart for the purpose of laser frequency stabilization to a high-finesse optical cavity. The transfer functions of both the digital and analog modules for proportional-integral-derivative control are measured. For the lasers stabilized to the cavity, we measure the singe-sideband power spectral density of fast phase noise by means of an optical beat with filtered light transmitted through the cavity.

Medium Definition Liposuction Abdominoplasty.

Unlabelled: Not all patients who exercise regularly and follow a balanced diet will obtain a well-defined abdomen. Medium definition liposuction, together with the removal of abdominal skin, can recreate an adequate connection between the skin/subcutaneous components and the myo-aponeurotic layer, resulting in the perception of muscle definition.

Methods: Over a period of 36 months, 351 patients underwent medium definition liposuction associated with abdominoplasty performed by a single surgeon (G.

Performance of the international classifications criteria for autoimmune hepatitis diagnosis in Mexican patients.

The revised score of the International Autoimmune Hepatitis Group (R-IAIHG) and the simplified criteria (SC) are used for diagnosis of autoimmune hepatitis (AIH). Our aim is to evaluate the performance of these classifications to differentiate AIH from other autoimmune liver diseases. The frequency of diagnosis of definite AIH was similar both by the R-IAIHG and the SC systems (41% versus 40%), whereas diagnosis of probable AIH was made more commonly by the R-IAIHG than the SC (59% versus 29%), and 23 patients that have been graded as definite (n = 7) or probable (n = 16) AIH by the R-IAIHG had non-diagnostic scores by the SC system.