نتایج جستجو برای: persistent k
تعداد نتایج: 470779 فیلتر نتایج به سال:
Challenges: • Volatility: Network changes drastically, frequently. • Sparsity: A single snapshot is extremely sparse. • Scalability: Algorithms must be efficient for large t k f t ti ll illi f b • Found 6 persistent patterns that represent connected components of employees with regular communication. • Substructures of edges within and between persistent patterns are monitored over time for ano...
We report on a large transient photoinduced enhancement of the superconducting critical temperature (DeltaTc = 23 K) in epitaxial YBa2Cu3O(6.7)/La(0.7)Ca(0.3)MnO3 bilayers upon visible light illumination. The effect relaxes with a characteristic time of 100 s at low temperatures, which is 4 orders of magnitude faster than the persistent photoconductivity or persistent photoinduced superconducti...
(Kemp JP, Skoner D, Szefler SJ, et al. Ann Allergy Asthma Immunol. 1999;83:231–239). This study retrospectively examines the data more closely and demonstrates that efficacy and safety are not dependent on whether administration is by facemask or mouthpiece. The results here provide reassuring data for clinicians treating children with persistent asthma who are too young to use mouthpieces. Sim...
While cholinergic receptor activation has long been known to dramatically enhance the excitability of cortical neurons, the cellular mechanisms responsible for this effect are not well understood. We used intracellular recordings in rat (both sexes) neocortical brain slices to assess the ionic mechanisms supporting persistent firing modes triggered by depolarizing stimuli following cholinergic ...
– We study the Kondo effect in a quantum dot embedded in a mesoscopic ring taking into account intradot spin-flip scattering R. Based on the finite-U slave-boson mean-field approach, we find that the Kondo peak in the density of states is split into two peaks by this coherent spin-flip transition, which is responsible for some interesting features of the Kondo-assisted persistent current circul...
The millisecond-duration radio flashes known as fast radio bursts (FRBs) represent an enigmatic astrophysical phenomenon. Recently, the sub-arcsecond localization (∼100 mas precision) of FRB121102 using the Very Large Array has led to its unambiguous association with persistent radio and optical counterparts, and to the identification of its host galaxy. However, an even more precise localizat...
Silicon in forage reduces dry matter digestibility and may reduce grazing preference. Two studies were conducted with the following objectives: (1) to evaluate a method of determining grazing preference, and (2) to characterize the distribution and solubility of silicon in 31 accessions of C-3 grasses and relate these traits to grazing preference and estimated forage digestibility. Forage sampl...
PURPOSE Effects of haloperidol on K(+) currents (IKs) of rat retinal ganglion cells (RGCs) were examined, with the hypothesis that its alteration of IKs explains alterations in the pattern electroretinogram (PERG). METHODS Fast blue was injected into superior colliculi of rats (3-8 days old) to identify RGCs under epifluorescence illumination after retrograde transport to retinas. Retinas wer...
We describe a ”train” effect which may exist in small metallic and semiconductor rings and might be associated with the long-standing problem of the persistent current enhancement. The current is associated with the cooperative motion of N electrons constituing the N -electron ”train”. The train arises via an excitation or a backflow of spin waves or of interchannel charge density sound modes. ...
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