Slowing of the radial pulse in patients with artificial pacemakers is usually attributable to mechanical defects. In a patient herewith described, slowing of the radial pulse rate developed without pacemaker malfunction. The responsible mechanism was frequent ventricular premature contractions which inhibited...
4a. Thus, a series of two cycles with a long wait in between will emit four equal bursts of quasiparticles. Between these two extremes, we can explore the situation with intermediate values of the delay Δt and can map out how rapidly the deficit fills. That is the basis of the ...
Any pulse deficit 1.75 (1.06–2.88) ECG infarction or new ischemia 1.76 (1.02–3.03) CI = confidence interval; ECG = electrocardiogram. Adapted and reproduced, with permission, from Rampoldi et al. (57). Table 2. Intra-Operative Predictors of Mortality Associated With Type A Dissection Variable...
the expecting LH surge occurs in seven of nine young women (ages 25–33), whereas only one of eight aged women responses an LH surge. The difference indicates a dysfunction of
The presence of the highly polysialated form of neural cell adhesion molecule (PSA-NCAM or NCAM-H), which is only found in immature neurons, provided additional evidence that neurogenesis occurs in the adult dentate gyrus (Seki and Arai, 1993). The existence of adult- generated neurons in ...
In a neuropathological situation, APP is metabolized by two amyloidogenic pathways (Fig. 2). It can be cleaved by β- and γ-secretase leading to direct extracellular production of Aβ peptides, or more importantly, APP is re-internalized into endosomes containing β- and γ-secretases, so...
The centre of mass of the yearly hydrograph, which indicates the period of the highest discharge (i.e. the spring flood), occurs earlier and earlier each year (Fig. S7). This shift is also probably related to the decreasing snow depths throughout the winter result- ing in snow melting ...
. It can be seen that in supply-driven ecosystems drainage is an important loss component, mainly on light soils. In storage-driven environments, water loss occurs predominantly by soil evaporation, while in tropical residual moisture regimes with short intense rainy season, runoff accounts for ...
2a). Notably, H206R and R462Q/W are located in the interface between Elp2 and the S-adenosyl methionine domain (SAM) of Elp3, which represents a crucial hotspot for the stability and catalytic activity of Elp3 and the whole Elongator complex40,41. Fig. 2: Mutations found in patients...
First, discontinuation symptoms are common, particularly after abrupt or rapid cessation of medication, except in the case of stimulants. These symptoms generally dampen over time and seem less likely when discontinuation occurs gradually. In general, DS risk is higher for psychotropic drugs with shor...