Recent theoretical work has suggested that brain oscillations in the theta band are involved in active maintenance and recall of working memory representations. To test this theoretical framework we recorded neuromagnetic responses from 10 subjects performing the Sternberg task. Subjects were required to retain a list of 1, 3, 5 or 7 visually presented digits during a 3-s retention period. Duri...

Event-related oscillations (ERO) offer an alternative theoretical and methodological approach to the analysis of event-related EEG responses. The P300 event-related potential (ERP) is elicited through the superposition of the delta (1-3 Hz) and theta (3-7 Hz) band oscillatory responses. The cholinergic neurotransmitter system has a key function in modulating excitatory post-synaptic potentials ...

The half-life of the known I,Kp=4−,4− state in 170Er has been measured to be 42.8±1.7 ns. The rotational band built on this isomer was excited inelastically up to spin 18− by a 238U beam at Elab=1358 MeV. A similar band in 168Er was extended to spin 15−. The wave function of the isomeric state in 170Er has been determined from the measured ugK−gRu values, which were deduced from the intensity r...

F1P1 V F 8 6.2 8.8 390 2 LM 1:1 ND CDA II band 3 Y462C/Y462C F2P1 V M 9 5.5 12.5 384 <0.2 LM 1:4 ND CDA II band 3 Y462C/Y462C F3P1 V M 6 10.8 6.4 368 0.4 LM 1:2 POS CDA II band 3 Y462C/Y462C F4P1 V M < 1 7.5 4.1 311 2.5 LM, EM 1:5 ND CDA II band 3 Y462C/Y462C F4P2 V M < 1 7.1 4.1 282 3.3 LM, EM 1:3 ND ND Y462C/Y462C F5P1a V M 21 8.4 3.2 301 2.6 LM, EM 1:3 ND CDA II band 3 Y462C/Y462C F6P1a V F ...

It is shown that electron-phonon interaction provides a natural explanation for the unusual band dispersion of the metallic surface states at the Si(111)-(7 x 7) surface. Angle-resolved photoemission reveals a discontinuity of the adatom band at a binding energy close to the dominant surface phonon mode at h(omega0) = 70 meV. This mode has been assigned to adatom vibrations by molecular dynamic...

In this paper, we present a novel broadband bandpass filter based on spoof surface plasmon polaritons (SSPPs) in the microwave frequency band. The proposed bandpass filter includes three parts: (1) coplanar waveguide (CPW); (2) matching transition; and (3) coupled structure that is an asymmetric coupled filter constructed by five grooved strips. The proposed bandpass filter realizes excellent l...

This paper describes a wideband (7 kHz) speech compression scheme operating at a bit rate of 13.0 kbit/s, i.e. 0.8 bit per sample. We apply a split-band (SB) technique, where the 0-6 kHz band is critically subsampled and coded by an ACELP approach. The high frequency signal components (6-7 kHz) are generated by an improved High-FrequencyResynthesis (HFR) at the decoder such that no additional i...

Vellberg in Geschichte und Gegenwart. Band II: Materialien. Regesten Urkunden zur der Herrschaft Herren von (Forschungen aus Württembergisch Franken. Bd. 7), Sigmaringen 1994. 532 S.

water content plays an important role in the process of plant photosynthesis and biomass accumulation. many methods have been developed to retrieve canopy leaf water content from remote sensing data. however, the validity of these methods has not been verified, which limits their applications. this study estimates the leaf water content (lwc) of winter wheat with three most widely used indexes:...

As the “traditional” mid-band frequencies of sub-6 GHz get allocated for various services, there has been increasing focus on 7–24 band next generation terrestrial mobile wireless systems to find a home in. On May 18, 2023, U.S. Federal Communication Commission (FCC) voted unanimously adopt new rules 12.2-13.25 that would permit such services in part band, 12.7-13.25 GHz, while seeking input sh...