402 research outputs found
From Hegel to Paz: Re-reading Orientalism in Latin American Writing
Over the past few decades, the presence of Asia in the history of Latin American literature has received considerable scholarly attention. An increasing number of studies on Asia in relation to Latin American politics and economy has been accompanied by a growing interest in cultural relations between these geographically distant regions. While the trans-Atlantic ties between Europe and Latin America have been scrutinized by critics for many years, the analysis of a trans-Pacific connection is still considered to be a relatively new subject. In general, previous research can be divided into two main branches. On the one hand are the scholars who have explored the ways in which the “exotic” Orient has attracted generations of Latin American writers since the nineteenth century. On the other hand are the studies that focus on more contemporary issues, such as the influence of Asian immigrants in different Latin American countries, most notably Cuba, Peru, Mexico, Argentina and Brazil. These studies look at both the contributions of the Asian Diaspora in the making of a modern Latin America and the ways in which this cultural encounter manifests itself in diverse forms, including literature, art, music, cuisine and fashion
Between the Empires: Martí, Rizal and the Limits of Global Resistance
This dissertation aims to compare and contrast an aspect of the fin-de-siècle literature and history of anti-imperialism in Cuba and the Philippines. I focus my study on what may be the most prominent authors of the two contexts: José Martí (1853-1895) and José Rizal (1861-1896). Although scholars such as Benedict Anderson and Leopoldo Zea have already noted the obvious relations between Martí and Rizal, their anti-imperial texts have not been systematically
compared. Caught between the two empires (Spain and the United States), their projects were equally overwhelming: while studying the history of the failed independence movement in their respective colonies, they attempted to transform the dilemmas of imperial culture into the
building blocks for national liberation. Based on this historico-political premise, my study attempts to explore how Martí and Rizal employ different literary forms to articulate their discourse of protest and to what extent their political writings create the conditions of possibility for a transnational, inter-colonial form of resistance against imperial domination.
One of the central contentions of this dissertation is that the two writers’ anti-imperial texts construct the conceptual framework for the idea of what I call “global resistance.” By this, I mean to indicate the ways in which Cubans and Filipinos shared certain anti-colonial ideas and
struggles against common opponents in the nineteenth century. Through literary analysis and historical study, I intend to examine both the possibilities and the limits of global resistance. The project involves diverse cultural points of reference, ranging from the Caribbean to Asia and
seeking to participate in the ongoing debate within the field of Trans-Pacific Studies
Phenomenology of NMSSM in TeV scale mirage mediation
We study the next-to-minimal supersymmetric standard model (NMSSM) with the
TeV scale mirage mediation, which is known as a solution for the little
hierarchy problem in supersymmetry. Our previous study showed that 125 GeV
Higgs boson is realized with O(10) % fine-tuning for 1.5 TeV gluino (1 TeV
stop) mass. The term could be as large as 500 GeV without sacrificing the
fine-tuning thanks to a cancellation mechanism. The singlet-doublet mixing is
suppressed by . In this paper, we further extend this analysis. We
argue that approximate scale symmetries play a role behind the suppression of
the singlet-doublet mixing. They reduce the mixing matrix to a simple form that
is useful to understand the results of the numerical analysis. We perform a
comprehensive analysis of the fine-tuning including the singlet sector by
introducing a simple formula for the fine-tuning measure. This shows that the
singlet mass of the least fine-tuning is favored by the LEP anomaly for
moderate . We also discuss prospects for the precision measurements
of the Higgs couplings at LHC and ILC and direct/indirect dark matter searches
in the model.Comment: 47 pages, 46 figures, version accepted by JHE
Measures of non-Gaussianity in axion-string-induced CMB birefringence
The presence of axion strings in the Universe after recombination can leave
an imprint on the polarization pattern of the cosmic microwave background
radiation through the phenomenon of axion-string-induced birefringence via the
hyperlight axion-like particle's coupling to electromagnetism. Across the sky,
the polarization rotation angle is expected to display a patchwork of uniform
regions with sharp boundaries that arise as the `shadow' of axion string loops.
The statistics of such a birefringence sky map are therefore necessarily
non-Gaussian. In this article we quantify the non-Gaussianity in
axion-string-induced birefringence using two techniques, kurtosis and
bispectrum, which correspond to - and -point correlation functions. If
anisotropic birefringence were detected in the future, a measurement of its
non-Gaussian properties would facilitate a discrimination across different new
physics sources generally, and in the context of axion strings specifically, it
would help to break degeneracies between the axion-photon coupling and
properties of the string network.Comment: 12 pages, plus appendix, 6 figure
Symmetries of CMB Temperature Correlation at Large Angular Separations
A new analysis is presented of the angular correlation function
of cosmic microwave background (CMB) temperature at large angular separation,
based on published maps derived from {\sl WMAP} and {\sl Planck} satellite
data, using different models of astrophysical foregrounds. It is found that
using a common analysis, the results from the two satellites are very similar.
In particular, it is found that previously published differences between
measured values of near arise mainly from
different choices of masks in regions of largest Galactic emissions, and that
demonstrated measurement biases are reduced by eliminating masks altogether.
Maps from both satellites are shown to agree with to within
estimated statistical and systematic errors, consistent with an exact symmetry
predicted in a new holographic quantum model of inflation.Comment: resubmitted to ApJ Letters, with revisions in response to referee
comment
Searching for axion-like particles through CMB birefringence from string-wall networks
Axion-like particles (ALPs) can form a network of cosmic strings and domain
walls that survives after recombination and leads to anisotropic birefringence
of the cosmic microwave background (CMB). In addition to studying cosmic
strings, we clarify and emphasize how the formation of ALP-field domain walls
impacts the cosmic birefringence signal; these observations provide a unique
way of probing ALPs with masses in the range . Using measurements of CMB birefringence from several telescopes,
we find no evidence for axion-defect-induced anisotropic birefringence of the
CMB. We extract constraints on the model parameters that include the ALP mass
, ALP-photon coupling , the
domain wall number , and parameters characterizing the abundance
and size of defects in the string-wall network. Considering also recent
evidence for isotropic CMB birefringence, we find it difficult to accommodate
this with the non-detection of anisotropic birefringence under the assumption
that the signal is generated by an ALP defect network.Comment: 20 pages + 3 appendices, 14 figures, 3 table
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Essays of Land Use Changes, Open Space, and Water Pollution
Land use is one of the leading factors that cause environmental degradation, such as water pollution, open space contraction and habitat loss. This dissertation consists of three essays. First paper investigates the relationship between land use and water pollution. Combining land use choice model and water pollution data, I simulate the effects of the policies that changes returns to land uses such as afforestation payments in five watersheds in Japan. From this simulation, I derive abatement cost of chemical oxygen demand, total nitrogen, and total phosphorous and I reveal that afforestation payment is best policy for most of pollutants and regions but in some regions it increases chemical oxygen demand. The cost data is then compared with abatement cost from upgrading and construction of sewage treatment plants to compare relative efficiency and show that combining both policy is sometimes more efficient that single policy. The second essay focuses on one watershed in Japan and I analyze the effect of the subsidy that promotes eco-friendly agriculture using fixed effect panel. Using budget as abatement cost, policy effect is estimated and compare it with land use subsidy and sewage treatment construction and upgrade cost. For my study area, afforestation payment is most cost effective while investing sewage treatment plants are least cost effective but the result depends on existing sewage treatment plants and regional characteristic. The third model focuses on land use and open space. Even though previous study (Bento et al. 2006) revealed that a tax and an urban growth boundary is equivalent in terms of efficiency. When I relax assumption by adding uncertainty and heterogeneity in soil quality, I show counterexamples of equivalence of two policies
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Application of Landsat to Evaluate Effects of Irrigation Forbearance
Thirty-meter resolution Landsat data were used to evaluate the effects of irrigation management in the Wood River Valley, Upper Klamath Basin, Oregon. In an effort to reduce water use and leave more of the water resource in-stream, 4,674 ha of previously flood irrigated pasture was managed as dryland pasture. Ground-based measurements over one irrigated and one unirrigated pasture site were used to monitor the difference in evapotranspiration (ET) using the Bowen ratio-energy balance method. These data sets represent point measurements of the response to irrigation, but do not allow for the spatial integration of effects of irrigated versus unirrigated land treatment. Four Landsat scenes of the Wood River Valley during the 2004 growing season were evaluated using reconstructed METRIC algorithms. Comparisons of ET algorithm output with ground-based data for all components of the energy balance, including net radiation, soil heat flux, sensible heat flux and evapotranspiration, were made for the four scenes. The excellent net radiation estimates, along with reasonable estimates of the other components, are demonstrated along with the capability to integrate results to the basin scale.This is the publisher’s final pdf. The published article is copyrighted by the author(s) and published by Multidisciplinary Digital Publishing Institute. The published article can be found at: http://www.mdpi.com/journal/remotesensingKeywords: Energy balance, Evapotranspiration, LandsatKeywords: Energy balance, Evapotranspiration, Landsa
FLASH: Faint Lenses from Associated Selection with Herschel
We report the ALMA Band 7 observations of 86 Herschel sources that likely
contain gravitationally-lensed galaxies. These sources are selected with
relatively faint 500 m flux densities between 15 to 85 mJy in an effort to
characterize the effect of lensing across the entire million-source Herschel
catalogue. These lensed candidates were identified by their close proximity to
bright galaxies in the near-infrared VISTA Kilo-Degree Infrared Galaxy Survey
(VIKING) survey. Our high-resolution observations (0.15 arcsec) confirm 47 per
cent of the initial candidates as gravitational lenses, while lensing cannot be
excluded across the remaining sample. We find average lensing masses (log
M/M = 12.9 0.5) in line with previous experiments, although
direct observations might struggle to identify the most massive foreground
lenses across the remaining 53 per cent of the sample, particularly for lenses
with larger Einstein radii. Our observations confirm previous indications that
more lenses exist at low flux densities than expected from strong galaxy-galaxy
lensing models alone, where the excess is likely due to additional
contributions of cluster lenses and weak lensing. If we apply our method across
the total 660 sqr. deg. H-ATLAS field, it would allow us to robustly identify
3000 gravitational lenses across the 660 square degree Herschel ATLAS fields.Comment: Accepted for publication in MNRAS. Comments and discussion are
welcom
Accurate dust temperature determination in a z = 7.13 galaxy
We report ALMA Band 9 continuum observations of the normal, dusty star-forming galaxy A1689-zD1 at z = 7.13, resulting in a ∼4.6 σ detection at 702 GHz. For the first time, these observations probe the far-infrared spectrum shortward of the emission peak of a galaxy in the Epoch of Reionization (EoR). Together with ancillary data from earlier works, we derive the dust temperature, Td, and mass, Md, of A1689-zD1 using both traditional modified blackbody spectral energy density fitting, and a new method that relies only on the [C ii] 158 μm line and underlying continuum data. The two methods give Td = (42+13-7, 40+13-) K, and Md} = (1.7+1.3-0.7, 2.0+1.8-1.0),
7, 107, M⊙. Band 9 observations improve the accuracy of the dust temperature (mass) estimate by ∼50 per cent (6 times). The derived temperatures confirm the reported increasing Td-redshift trend between z = 0 and 8; the dust mass is consistent with a supernova origin. Although A1689-zD1 is a normal UV-selected galaxy, our results, implying that ∼85 per cent of its star-formation rate is obscured, underline the non-negligible effects of dust in EoR galaxies
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