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We report the first use of pulsed terahertz spectroscopy to examine low frequency collective vibrational modes of biomolecules. Broadband absorption increasing with frequency was observed for lyophilized powder samples of calf thymus DNA, bovine serum albumin and collagen in the 0.06 THz-2.00 THz, (2 cm-1-67 cm-1) frequency range suggesting that a large(More)
The harmonic approximation for the potential energy of proteins is known to be inadequate for the calculation of many protein properties. To study the effect of anharmonic terms on protein vibrations, the anharmonic wave functions for the ground state and low-lying excited states of the bovine pancreatic trypsin inhibitor (BPTI) were calculated. The results(More)
Raman and Fourier transform-infra red (FT-IR) spectroscopies of fluorescein in aqueous solutions have been investigated in the pH range from 9.1 to 5.4. At pH 9.1 fluorescein is in the dianion form. At pH 5.4, fluorescein is a mixture of monoanion (approximately 85%), dianion and neutral forms (together approximately 15%). The fluorescence quantum yield(More)
This paper presents a quantitative and qualitative error analysis of Russian anaphora re-solvers which participated in the RU-EVAL event. Its aim is to identify and characterize a set of challenging errors common to state-of-the-art systems dealing with Russian. We examined three types of pronouns: 3rd person pronouns, reflexive and relative pronouns. The(More)
In this paper, we present a syntactic approach to the annotation of bridging relations, so-called genitive bridging. We introduce the Ru-GenBridge corpus for Russian annotated with genitive bridging and compare it to the semantic approach that was applied in the Prague Dependency Treebank for Czech. We discuss some special aspects of bridging resolution for(More)
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