The noncovalent complexes between the BlaI protein dimer (wild-type and GM2 mutant) and its double-stranded DNA operator were studied by nanospray mass spectrometry and tandem mass spectrometry (MS/MS). Reproducibility problems in the nanospray single-stage mass spectra are emphasized. The relative intensities depend greatly on the shape of the capillary tip and on the capillary-cone distance. ...

We present a first study of the channel H, A → τ τ → h ± + h ∓ + X in CMS at high mA values where no triggering difficulties are expected with QCD jets. At present the τ selection is based solely on the presence of a hard isolated track in the " τ " jet, but further refinements based on calorimeter collimation or impact parameter selections are obviously possible. The main irreducible backgroun...

INTRODUCTION Cervical lymphadenopathy (LAP) in children is a common clinical diagnostic dilemma. The aim of our study was to analyse ultrasonography, fine needle aspiration biopsy, size and location on the neck to distinguish lymph nodes requiring excision from those that do not. MATERIAL AND METHODS We retrospectively studied 43 cervical lymph nodes that were excised from 43 children aged 0-...

CONTEXT AND OBJECTIVE Giardiasis is common in Brazil. For laboratory diagnosis, the method most utilized is microscopic examination of fecal samples, but the immunoenzymatic method is also available. The aim of this work was to verify the advantages and drawbacks of immunoassaying versus microscopy for diagnosing Giardia lamblia, when a single fecal sample is analyzed. DESIGN AND SETTING Pros...

The increasing frequency of multi-drug resistant microorganisms has driven research into alternative therapeutic strategies. In this respect, natural antimicrobial peptides (AMPs) hold much promise as candidates for the development of novel antibiotics. However, AMPs have some intrinsic drawbacks, such as partial degradation by host proteases or inhibition by host body fluid composition, potent...

Peltier technology opens new opportunities for special applications. In the current project, this technology was applied to design and fabricate a portable thermoelectric beverage cooler and thermoelectric cup. The simulation and results of the experiment showed that the common beverage cooler is not a suitable design for ignoring the effect of natural convection in cooling. In our thermoel...

We propose Finger-Specific Interaction (FSI) as a potential interaction technique for interactive surfaces. FSI treats each finger as completely independent, as one input primitive. This paper discusses the advantages and drawbacks of adopting FSI for use on interactive surfaces. The advantages include an increase of input primitives, enabling eyes-free interaction and the ability to differenti...