3,942 research outputs found
Emotion in the German Lutheran Baroque and the development of subjective time consciousness
This study examines some of the ways in which it was possible to understand emotion in Lutheran church music of the seventeenth and early eighteenth centuries. It suggests that emotion related to music more through association and contextual factors than through a fixed relationship, thus explaining the ways in which musical passages and techniques could be taken from a secular context to serve a sacred purpose. With these factors in mind, it is possible to suggest ways in which a listener's likely emotional association with music can be harnessed through particular compositional procedures. SchĂŒtz's setting of part of the Song of Songs may well engage with the listener's consciousness over time, stretching it and reinforcing the âusefulâ emotional associations that the sacred context might bring. The opening aria of Bach's cantata âLiebster Jesu, mein Verlangenâ achieves something similar over a longer span and with greater emotional intensity. Here there is the added sense of the believer finding, losing and then rediscovering the object of spiritual adoration. The music thus implies the potential alienation of the listener, something both supported and overcome through the very structuring of the music. Its repetitive ritornello process is sometimes hidden but always latent, thus playing on the potential for subconscious recognition. Together, these two examples suggest that music can be used as a powerful demonstration of the historical development of modern forms of consciousness as related to emotional states over time
An Archaeological Survey for Asylum Creek and No Name Creek Channel Rectification Project, Bexar County, Texas
During August of 1992, staff archaeologists from the Center for Archaeological Research (CAR) at the University of Texas at San Antonio (UTSA) conducted surface survey, mapping, and subsurface testing adjacent to Asylum and No-Name Creeks under contract with the San Antonio River Authority in conjunction with a channel rectification project. Particular attention was given to locating cultural materials associated with the nearby San Juan Acequia. No significant cultural resources were located at either location
Towards quantitative tissue absorption imaging by combining photoacoustics and acousto-optics
We propose a strategy for quantitative photoacoustic mapping of chromophore
concentrations that can be performed purely experimentally. We exploit the
possibility of acousto-optic modulation using focused ultrasound, and the
principle that photons follow trajectories through a turbid medium in two
directions with equal probability. A theory is presented that expresses the
local absorption coefficient inside a medium in terms of noninvasively measured
quantities and experimental parameters. Proof of the validity of the theory is
given with Monte Carlo simulations.Comment: 14 pages, 5 figure
Point counting on reductions of CM elliptic curves
We give explicit formulas for the number of points on reductions of elliptic
curves with complex multiplication by any imaginary quadratic field. We also
find models for CM -curves in certain cases. This generalizes
earlier results of Gross, Stark, and others.Comment: Minor corrections. To appear in Journal of Number Theor
Collapsing D-branes in one-parameter models and small/large radius duality
We finalize the study of collapsing D-branes in one-parameter models by
completing the analysis of the associated hypergeometric hierarchy. This brings
further evidence that the phenomenon of collapsing 6-branes at the mirror of
the `conifold' point in IIA compactifications on one-parameter Calabi-Yau
manifolds is generic. It also completes the reduction of the study of higher
periods in one-parameter models to a few families which display characteristic
behaviour. One of the models we consider displays an exotic form of small-large
radius duality, which is a consequence of an ``accidental'' discrete symmetry
of its moduli space. We discuss the implementation of this symmetry at the
level of the associated type II string compactification and its action on
D-brane states. We also argue that this model admits two special Lagrangian
fibrations and that the symmetry can be understood as their exchange.Comment: 34 pages, 12 figure
Toric bases for 6D F-theory models
We find all smooth toric bases that support elliptically fibered Calabi-Yau
threefolds, using the intersection structure of the irreducible effective
divisors on the base. These bases can be used for F-theory constructions of
six-dimensional quantum supergravity theories. There are 61,539 distinct
possible toric bases. The associated 6D supergravity theories have a number of
tensor multiplets ranging from 0 to 193. For each base an explicit Weierstrass
parameterization can be determined in terms of the toric data. The toric
counting of parameters matches with the gravitational anomaly constraint on
massless fields. For bases associated with theories having a large number of
tensor multiplets, there is a large non-Higgsable gauge group containing
multiple irreducible gauge group factors, particularly those having algebras
e_8, f_4 and (g_2 + su(2)) with minimal (non-Higgsable) matter.Comment: 39 pages, 13 figures, one appendix; ancillary data file contains list
of 61,539 bases; v2: minor correctio
Minimum Distances in Non-Trivial String Target Spaces
The idea of minimum distance, familiar from R 1/R duality when the string
target space is a circle, is analyzed for less trivial geometries. The
particular geometry studied is that of a blown-up quotient singularity within a
Calabi-Yau space and mirror symmetry is used to perform the analysis. It is
found that zero distances can appear but that in many cases this requires other
distances within the same target space to be infinite. In other cases zero
distances can occur without compensating infinite distances.Comment: 21 pages, IASSNS-HEP-94/1
Core-mantle boundary deformations and J2 variations resulting from the 2004 Sumatra earthquake
The deformation at the core-mantle boundary produced by the 2004 Sumatra
earthquake is investigated by means of a semi-analytic theoretical model of
global coseismic and postseismic deformation, predicting a millimetric
coseismic perturbation over a large portion of the core-mantle boundary.
Spectral features of such deformations are analysed and discussed. The
time-dependent postseismic evolution of the elliptical part of the gravity
field (J2) is also computed for different asthenosphere viscosity models. Our
results show that, for asthenospheric viscosities smaller than 10^18 Pa s, the
postseismic J2 variation in the next years is expected to leave a detectable
signal in geodetic observations.Comment: 14 pages, 8 figures, 1 table. It will appear in Geophysical Journal
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