Predators feel the pinch

Reliability of the Pinch Strength with Digitalized Pinch Dynamometer

OBJECTIVE To examine the intra-rater, inter-rater, and inter-instrumental reliability of the digitalized pinch muscle strength dynamometer. METHOD Thirty normal subjects were examined for pinch strength, using both the Preston pinch gauge and the digitalized pinch dynamometer. The participants performed all pinch strength tests in the seated position as recommended by the American Society of ...

Scam Feels the Pinch

The paper by Movileanu et al. (2001) in this issue of The Journal describes a test of the applicability of the substituted-cysteine-accessibility method (SCAM; Akabas et al., 1992; Akabas et al., 1994) to the problem of locating the narrowest region of a channel lumen. Movileanu et al. (2001) use unusually large sulfhydryldirected reagents to probe the wide bore channel formed by Staphylococcal...

The Feel of Java

Kinetochores feel the pull

S uzuki et al. (1) take a close look at how kinetochores change shape when spindle microtubules tug on them. They fi nd that only part of the kinetochore stretches and identify a protein that might confer this ability. Kinetochores, which hook the fi bers of the mitotic spindle to chromosomes, are more than passive fasteners. Fashioned from more than 100 proteins, the structures are dynamic and...

Introduction to the Pinch Technique

These notes are a short introduction to the pinch technique. We present the oneloop calculations for basic QCD Green’s functions. The equivalence between the pinch technique and the background field method is explicitly shown at the one-loop level. We review the absorptive pinch technique in the last sections. These lectures are a compilation of relevant papers on this subject and are prepared ...