Regional myocardial blood flow was measured in nine dogs at rest and during three levels of treadmill exercise by using left atrial injections of 7-10-mum radioactive microspheres. At rest, heart rate was 76 plus or minus 3 beats/min (mean plus or minus SEM), mean left ventricular myocardial flow was 0.94 plus or minus 0.09 ml/min/g and endocardial flow (endo) exceeded epicardial flow (epi) in ...

We examined the effect of peptone yeast extract glucose broth (PYG), RPMI 1640 and Antibiotic Medium 3 (M3) on the in vitro susceptibility of clinical isolates (n = 200) of Aspergillus fumigatusto amphotericin B (AMB), itraconazole (ITZ) and voriconazole (VCZ). The MICs (mug/mL) of various antifungal agents (geometric mean plus/minus standard deviation) obtained in PYG, RPMI 1640 and M3, respec...

showed no respiration due to endogenous substrates. Only L-ascorbate with NNN‘N’tetramethyl-p-phenylenediamine was oxidized by membrane particles and the specific activity obtained was lower than in corresponding particles prepared from NH4+-grown cells. Low-temperature reduced-minus-oxidized difference spectra (Fig. 1, trace b) suggested that this lack of electron-transport activity may be due...

We used a stationary torsion balance with beryllium-aluminum composition dipole to search for ultralow-mass bosonic dark matter coupled baryon minus lepton number. set 95% confidence limits on the coupling constant ${g}_{\mathrm{B}\ensuremath{-}\mathrm{L}}$ bosons masses between ${10}^{\ensuremath{-}18}$ and ${10}^{\ensuremath{-}16}\text{ }\text{ }\mathrm{eV}/{c}^{2}$ best performance at ${m}_{...

Knowles, Das Gupta and Sen (1936) have observed that 15 of a batch of 31 white mice (Mus muscuius) showed spontaneous infection with Spirillum minus. These mice were caged in cages of narrow meshed iron-netting. No rat could possibly get at the mice to bite them. On looking through the literature it is found that other workers such as Robertson (1930), McCluskie (1930), and lately Francis (1936...

George A. Miller said that human beings have only seven chunks in short-term memory, plus or minus two. We counted the number of bunsetsus (phrases) whose modifiees are undetermined in each step of an analysis of the dependency structure of Japanese sentences, and which therefore must be stored in short-term memory. The number was roughly less than nine, the upper bound of seven plus or minus t...

Microtubules are intrinsically polar structures. A consequence of this polarity is that the two ends of the microtubule polymer exhibit different properties. The more dynamic plus ends and the mechanisms that regulate their behavior have been the focus of much recent attention. Here, we concentrate on the dynamics and regulation of minus ends, which play distinct but equally critical roles in m...