Sign Character Research Articles

“Brasilhana”: la creación de un signo musical transcultural

Este artículo trata un caso específico de regionalismo musical dentro de las múltiples expresiones contemporáneas de la música popular brasileña; a saber, el repertorio de canciones de música gaucho/nativista producidas en el flujo de un movimiento de revitalización que nació en la década de 1970 en el sur de Brasil. Partiendo de un análisis musicobiográfico de una canción específica, el texto presenta el carácter contextual de los signos musicales empleados como marcadores de identidad transnacional/nacional/regional, la agencia de los creadores de música en la construcción de identidad social y la cuestión del esencialismo en los sistemas de clasificación musical, sobre todo respecto a temas de tradición/autenticidad.

Terahertz electron transport in a two-dimensional topological insulator in a HgTe quantum well

The terahertz response of a two-dimensional topological insulator in a HgTe quantum well to radiation with wavelengths of 118 and 184 μm is investigated. It is found that the photoconductivity is rather high (up to a few percent of dark conductivity) and is manifested in both the local and nonlocal responses of the system. This fact proves that the observed photoconductivity is caused by changes in the transport via edge current-carrying states. The sign and nonresonant character of the photoconductivity indicate that it is caused by the heating of electrons in the system. The analysis of experimental results makes it possible to suggest that this heating originates from the Drude absorption of terahertz radiation by metallic “droplets” appearing owing to fluctuations in the impurity potential and the gap and located in direct proximity to edge states.

Weyl group actions on the Springer sheaf

We show that two Weyl group actions on the Springer sheaf with arbitrary coefficients, one defined by Fourier transform and one by restriction, agree up to a twist by the sign character. This generalizes a familiar result from the setting of l-adic cohomology, making it applicable to modular representation theory. We use the Weyl group actions to define a Springer correspondence in this generality, and identify the zero weight spaces of small representations in terms of this Springer correspondence.

MEMAHAMI CITRA KOTA BERDASARKAN KOGNISI SPASIAL PENGAMAT (Studi Kasus: Pusat Kota Semarang)

Understanding image of the center Semarang city can be done by knowing the spatial cognition of observers. Spatial cognition of observer describes how observers obtain , organize , store , and recall information about the location , distance and arrangement within the city environment . Spatial cognition of observers have the basic concepts Imageability and legibility. This research used a descriptive approach is to describe and interpret the object of observation in accordance with what it is. The objective of this research was to determine the level of spatial cognition ability of observers in understanding image of the city. The results of the research suggests that the image of the center of Semarang city can be understood if the city has the clear character , clear shape , clear pattern , clear structure , and elements of clear signs , because it is necessary to provide an understanding of the oriented and identification for the observer.

Night and days in Cassiciacum: The anti-Manichaean theodicy of Augustine’s <i>De ordine</i>

In his early dialogue ‘On order’ (De ordine) Augustine dramatises a discussion of theodicy in which the Manichaean solution is clearly rejected, even though the debate ends in aporia. It is argued in this paper that the dialogue’s dramatic setting at the villa in Cassiciacum is strongly reminiscent of Manichaean imagery and the stock motifs of the Manichaean mythological system. It is proposed in the dialogue itself, that the scenic elements (Augustine’s ill health, night and darkness, the dawning day, dirt and ugliness, fighting cocks) have the character of signs which illustrate the significance of the not-beautiful and the negative in the divine order. The dialogue setting thus presents an ontological scale that leads from the levels of reduced being up to the highest being, linking night or darkness to light or day, dirt to purity, sickness to health, defeat to victory, the ugly to the beautiful. The dialogue setting becomes a semiotic system in which even the ontologically deficient forms of phenomenon always also refer to something at the highest level, namely the omnipotent divine creator. The scenic design of De ordine can thus be read as an extension of the Manichaean system of codes, and hence as a message also addressed to a Manichaean readership.

Hecke algebra and quantum chromatic symmetric functions

We evaluate induced sign characters of $H_n(q)$ at certain elements of $H_n(q)$ and conjecture an interpretation for the resulting polynomials as generating functions for $P$-tableaux by a certain statistic. Our conjecture relates the quantum chromatic symmetric functions of Shareshian and Wachs to $H_n(q)$ characters. Nous évaluons les caractères de signe induits de $H_n(q)$ à certains éléments de $H_n(q)$ et nous conjecturons une interprétation des polynômes résultants comme fonctions génératrices pour les tableaux-$P$ par une certaine statistique. Cette conjecture établit un lien entre les fonctions chromatiques symétriques de Shareshian et Wachs et les caractères de $H_n(q)$.

A generalization of the sign character

For every q ∈ N we define a class function on finite symmetric groups, which generalizes the sign character. We show that this class function is a generalized character. In case q a prime we determine all its irreducible constituents. As an application we show that a certain inner product on the representation ring of a symmetric group can be evaluated for Young modules by the aid of this class function.

Rickettsia parkeri Rickettsiosis, Argentina

Rickettsia parkeri, a recently identified cause of spotted fever rickettsiosis in the United States, has been found in Amblyomma triste ticks in several countries of South America, including Argentina, where it is believed to cause disease in humans. We describe the clinical and epidemiologic characteristics of 2 patients in Argentina with confirmed R. parkeri infection and 7 additional patients with suspected R. parkeri rickettsiosis identified at 1 hospital during 2004–2009. The frequency and character of clinical signs and symptoms among these 9 patients closely resembled those described for patients in the United States (presence of an inoculation eschar, maculopapular rash often associated with pustules or vesicles, infrequent gastrointestinal manifestations, and relatively benign clinical course). Many R. parkeri infections in South America are likely to be misdiagnosed as other infectious diseases, including Rocky Mountain spotted fever, dengue, or leptospirosis.

Tablet Keiti and calendar-like structures in Rapanui script

This paper is dedicated to structural analysis of rongorongo tablet Keiti. Following the numerous papers appearing on the subject in the past years, it is important to establish a standard for a rigorous structural analysis. It should include not only repetitive groups of signs, but also must consider the general layout of the text, anomalously high glyph occurrence, parallel passages shared with other texts and their order. It is fashionable to write about possible calendar-like structures in Easter Island texts, following the discoveries by Barthel and Guy of the probable schematic structure of lunar month on the tablet Mamari. While it was thought that the aforementioned list is unique in the whole rongorongo corpus, it is important to highlight various other text fragments that have the similar structural properties and feature about 30 repetitive elements, which may be considered as indicators of their relation to the moon cycle. One of these lists is widely known sequence delimited with glyphic group 380.1. At the same time, one should be aware that very pronounced repetitive character of single sign or sign group significantly limits the possibility of phonetic reading of rongorongo passages, which brings forth again still unanswered question about the proper content identification of the survived monuments of Easter Island script.

Post-modernism, post-structuralism, post-semiotics? Sign theory at the fin de siècle

The contribution describes the differences between modernism and postmodernism as historical periods of the twentieth century and establishes comparable differences between structuralism and post-structuralism as semiotic approaches. Like modernism, structuralism rejects traditional modes of thought, attempts to reconstruct academic disciplines on the basis of a few fundamental principles and strives to work with reconstructed terminologies and axioms. Like post-modernism, post-structuralism is characterized by the necessity of finding ways to continue research based on the fragmentary results left by structuralist projects. In the beginning of the twentieth century, structuralism itself had responded to materialism, atomism, historicism, and naturalism by introducing its own methodology built around the dichotomies of signified and signifier, paradigm and syntagm, synchrony and diachrony, langue and parole. Rather than rejecting this apparatus, post-structuralism explicated the paradoxes behind these dichotomies and tried to overcome them by under-mining the first concept of each pair. This change of perspective foregrounded the material, processual, and intertextual character of signs as well as the sense-producing function of interpretation. Rejecting rigidly fixed methods as well as general theories, and waiving the distinction between object-signs and meta-signs in favor of their joint reflection, post-structuralist semiotics became an alternative to conventional practices of academic sign analysis and now approaches the status of an art.

Interlinguale Phraseologie: Theorie, Praxis und Perspektiven

Interlinguale Phraseologie: Theorie, Praxis und Perspektiven

Segmentation of Road Guidance Sign Symbols and Characters Based on Normalized RGB Chromaticity Diagram

In this paper, we describe a color segmentation based on the normalized RGB chromaticity diagram to extract the symbols and characters of road guidance signs. The proposed method separates blue color of the signs by utilizing the developed histogram on the normalized RGB chromaticity diagram for selecting the threshold automatically. The image morphology operator and the histogram projection technique are employed to extract the symbols and characters. From the experiments on the real scene images, the extraction rate of 97.3% is achieved. General Terms Image processing, Machine vision.

Use of the polarizing filter on the refractometer in determinations of the optic sign or optic character of a gemstone

Use of the polarizing filter on the refractometer in determinations of the optic sign or optic character of a gemstone

Some arithmetic properties of partial zeta functions weighted by a sign character

We introduce two types of zeta functions ( Ψ-type and ζ-type) of one complex variable associated to an arbitrary number field K. We prove various arithmetic identities which involve both of them. We also study their special values at integral arguments.

Functional equation for partial zeta functions twisted by additive characters

In this paper we prove a functional equation for a certain class of zeta functions attached to an arbitrary number field K. The proof of the functional equation relies on the transformation formula of a multivariables theta function. The techniques which are used are classical and are due essentially to Riemann and Hecke. As a special case, we obtain a functional equation for partial zeta functions of K twisted by sign characters.

Neuroleptic Malignant Syndrome

Neuroleptic Malignant Syndrome

On the square root of the centre of the Hecke algebra of type A

AbstractIn this paper we investigate non-central elements of the Iwahori-Hecke algebra of the symmetric group whose squares are central. In particular, we describe a commutative subalgebra generated by certain non-central square roots of central elements, and the generic existence of a rank-three submodule of the Hecke algebra contained in the square root of the centre, but not in the centre. The generators for this commutative subalgebra include the longest word and elements related to trivial and sign characters of the Hecke algebra. We find elegant expressions for the squares of such generators in terms of both the minimal basis of the centre and the elementary symmetric functions of Murphy elements.

How to do more with numbers: Elementary stakes, framing, keying, and the three-dimensional character of numerical signs

This paper investigates the various ways in which the use numbers is involved in the ordering of activity in social situations. Drawing on social studies of finance and accounting, elementary stakes within the situated use of numbers are initially considered, listing alongside the utilization of numbers as bearers of information their impact on opportunities of action, the embedding of situations, and the use of numbers as social resources. Subsequently, Erving Goffman’s method of frame analysis is drawn upon to more closely investigate how the utilization of numbers is interactively regulated. The framing of activity differentiates consumptive and reproductive utilizations of numbers, and processes of keying manage transitions between frames of consumption and reproduction. Through framing and keying, numbers acquire a three-dimensional character combining calculative, symptomatic and existential qualities. This is illustrated by a sketch of the kind of social order which unfolds when participants attempt to regulate at a distance activity embedded in networks of circulating numbers. In conclusion, there appear to be general differences between the use of numbers and the use of letters and written narrative which derive from the more immediate bearing of the use of numbers on the ordering of social situations, and particularly its unique power of upkeying.

Square $\boldsymbol {q,t}$-lattice paths and $\boldsymbol {\nabla (p_n)}$

The combinatorial q,t-Catalan numbers are weighted sums of Dyck paths introduced by J. Haglund and studied extensively by Haglund, Haiman, Garsia, Loehr, and others. The q,t-Catalan numbers, besides having many subtle combinatorial properties, are intimately connected to symmetric functions, algebraic geometry, and Macdonald polynomials. In particular, the n'th q,t-Catalan number is the for the module of diagonal harmonic alternants in 2n variables; it is also the coefficient of s 1 n in the Schur expansion of ∇(e n ). Using q,t-analogues of labelled Dyck paths, Haglund et al. have proposed combinatorial conjectures for the monomial expansion of ∇(e n ) and the of the diagonal harmonics modules. This article extends the combinatorial constructions of Haglund et al. to the case of lattice paths contained in squares. We define and study several q,t-analogues of these lattice paths, proving combinatorial facts that closely parallel corresponding results for the q,t-Catalan polynomials. We also conjecture.an interpretation of our combinatorial polynomials in terms of the nabla operator. In particular, we conjecture combinatorial formulas for the monomial expansion of ∇(p n ), the Hilbert series (∇(p n ), h 1 n), and the sign character (∇(p n ),s 1 n).

A proof of the [formula omitted]-square conjecture

We prove a combinatorial formula conjectured by Loehr and Warrington for the coefficient of the sign character in ∇ ( p n ) . Here ∇ denotes the Bergeron–Garsia nabla operator, and p n is a power-sum symmetric function. The combinatorial formula enumerates lattice paths in an n × n square according to two suitable statistics.