Spectral analysis of heart rate sequences is commonly used to investigate neuroauthonomic control of heart rate by means of two indexes, the low and the high frequency power. For tilt test data of normal subjects we compare the spectral indexes with new indexes defined within the framework of symbolic analysis. We define two classes of binary words of length 4: the first class is related to "ac...

The product of two real spectral triples {A1,H1,D1,J1, γ1} and {A2,H2,D2,J2(, γ2)}, the first of which is necessarily even, was defined by A.Connes [3] as {A,H,D,J (, γ)} given by A = A1 ⊗ A2, H = H1 ⊗ H2, D = D1 ⊗ Id2 + γ1 ⊗ D2, J = J1 ⊗ J2 and, in the even-even case, by γ = γ1⊗γ2. Generically it is assumed that the real structure J obeys the relations J 2 = ǫId, JD = ǫ ′DJ , J γ = ǫ ′′γJ , wh...

In this study, spectral properties of speech sounds were used to test functional spectral resolution in people who use cochlear implants (CIs). Specifically, perception of the /ba/-/da/ contrast was tested using two spectral cues: Formant transitions (a fine-resolution cue) and spectral tilt (a coarse-resolution cue). Higher weighting of the formant cues was used as an index of better spectral ...

Deep inelastic scattering cross section measurements previously published by the H1 and ZEUS collaborations are combined. The procedure takes into account the systematic error correlations in a coherent way, leading to a significantly reduced overall cross section uncertainty. The combined H1 and ZEUS measurements of the inclusive neutral and charged current cross sections are used to perform a...

New precision measurements of inclusive diffractive deep-inelastic ep scattering interactions, performed by the H1 and ZEUS collaborations at the HERA collider, are discussed. A new set of diffractive parton distributions, determined from recent high precision H1 data, is presented.

The authors present a case of 36 year old male patient with idiopathic postural orthostatic tachycardia syndrome (POTS) diagnosed during head-up tilt testing. Power spectral analysis of heart rate variability (HRV) during the tilt test revealed that the ratio of low and high frequency powers (LF/HF) increased with the onset of orthostatic intolerance. This analysis confirmed in our patient a st...

[Purpose] The purpose of this study was to investigate the amount of plantar pressures on the lower limb during tilt table standing and to indicate the ideal degree of tilting for partial weight bearing. [Subjects and Methods] Fifteen healthy subjects between the ages of 20 and 30 were recruited as volunteers for this study. All the measurements were taken while standing on a tilt table accordi...

We revisit two-field hybrid inflation as an effective field theory for low-scale with sub-Planckian scalar ranges. focus on a prototype model by Stewart because it allows red spectral tilt, which still fits the current data. describe constraints this imposed CMB measurements. then explore stability of to quantum corrections. find that relevant, marginal, and at least finite set irrelevant opera...

PURPOSE To evaluate the difference in intraocular lens tilt and decentration measurements with 2 Purkinje meters. SETTING Vienna Institute for Research in Ocular Surgery, Hanusch Hospital, Vienna, Austria. DESIGN Prospective evaluation of diagnostic test. METHODS This single-center study included pseudophakic patients in 2 substudies in which 3 consecutive measurements were performed with...

This report describes a method of speech modification to improve the intelligibility of speech. The spectral energy is reallocated by maintaining and emphasizing acoustical features important for speech perception. The method consists of three components: flattening of the spectral tilt, enhancement of the spectral contrast, and holding of the low-frequency region. The results of this speech in...