6,247 research outputs found
A new Test of Uncovered Interest Rate Parity: Evidence from Turkey
This paper examines if uncovered interest rate parity condition holds for Turkey. In this paper, an empirical analysis is provided for the dates between December 2001 and June 2007 by using monthly data for Turkey and the U.S. Main finding is that UIP does not hold for Turkey. In addition to this, UIP deviation goes up over time, AR (1) fits the data well, there is an ARCH effect and GARCH (1,1) specification is significant for Turkish case.Uncovered Interest Rate Parity; Unit Root Test; AR Process; ARCH and GARCH Models
Studies of Neutrino-Electron Scattering at the Kuo-Sheng Reactor Neutrino Laboratory
Studies on electron antineutrino-electron elastic scattering were performed
using a 200-kg CsI(Tl) scintillating crystal detector array at the Kuo-Sheng
Nuclear Power Plant in Taiwan. The measured cross section of R(exp) = [1.00 +-
0.32(stat)]xR(SM) is consistent with the Standard Model expectation and the
corresponding weak mixing angle derived is sin2T = 0.24 +- 0.05 (stat). The
results are consistent with a destructive interference effect between neutral
and charged-currents in this process. Limits on neutrino magnetic moment of
mu(nu_(e)) < 2.0 x 10^(-10) mu_(B) at 90% confidence level and on electron
antineutrino charge radius of r^(2) < (0.12 +- 2.07)x10^(-32) cm^2 were also
derived.Comment: Parallel talk at ICHEP08, Philadelphia, USA, July 2008. 4 pages,
LaTex, 4 eps figure
Indeterminate Equilibria in New Keynesian DSGE Model: An Application to the US Great Moderation
This paper tests “Bad Policy” Hypothesis which refers to the Great Moderation in the US. We examine this hypothesis by simulating model based impulse response functions for the both pre-Volcker period and post 1982 period. Deriving and simulating standard New Keynesian DSGE Model explicitly, we find that while post 1982 policy i.e. active policy, is consistent with the unique stable equilibrium characteristics; pre-Volcker or passive monetary policy generates equilibrium indeterminacy. Moreover, our simulated-impulse response functions show that the response of inflation and the output gap in post 82 period is weaker than the macroeconomic responses of the pre-Volcker period.The Great Moderation, Indeterminacy, Determinate Equilibrium, New Keynesian DSGE Model, Monetary Policy, Sunspot shocks
From spin-polarized interfaces to giant magnetoresistance in organic spin valves
We calculate the spin-polarized electronic transport through a molecular
bilayer spin valve from first principles, and establish the link between the
magnetoresistance and the spin-dependent inter- actions at the metal-molecule
interfaces. The magnetoresistance of a Fe|bilayer-C70|Fe spin valve attains a
high value of 70% in the linear response regime, but it drops sharply as a
function of the applied bias. The current polarization has a value of 80% in
linear response, and also decreases as a function of bias. Both these trends
can be modelled in terms of prominent spin-dependent Fe|C70 interface states
close to the Fermi level, unfolding the potential of spinterface science to
control and optimize spin currents.Comment: 13 pages, 5 figure
Electrical thermo-optic tuning of ultrahigh-Q microtoroid resonators
The ability to tune resonant frequency in optical microcavities is an essential feature for many applications. Integration of electrical-based tuning as part of the fabrication process has been a key advantage of planar microresonant devices. Until recently, the combination of these features has not been available in devices that operate in the ultrahigh-Q regime where device quality factors (Q) can exceed 100 million. In this letter, we demonstrate an electrically tunable resonator on a chip with ultrahigh-quality factors. Futhermore, the devices have demonstrated tuning rates in excess of 85 GHz/V2 and are capable of tuning more than 300 GHz
Investigating The Role of AEG-1 in Mouse Models of Pain
Background: Astrocyte Elevated Gene 1 (AEG-1) is a multifunctional protein shown to be a regulator of transcription and multiple intracellular signaling pathways. The role of AEG-1 in cellular inflammation appears to be primarily facilitated by its direct interaction with the transcription factor NFκB, transcriptional regulator of inflammatory cytokines. May be have a potential role in models of pain, particularly chronic inflammatory and chemotherapy induced peripheral neuropathy (CIPN). Methods: C57BL6/J male and female mice, 8-14 weeks old. AEG-1 wild type (WT) and global knockout (KO) male and female mice, 8-14 weeks old. Chronic Inflammatory Pain induced via i.pl. injection of 50% Freund\u27s Complete Adjuvant (CFA) or vehicle into mouse right hind paw. CIPN induced via four 8 mg/kg, i.p. injections of Paclitaxel or vehicle (Toma, et. al). Mechanical hypersensitivity assessed via von frey filaments. Acetone Test was used to assess cold sensitivity. mRNA transcripts collected from tissues were measured via qRT-PCR. Results: AEG-1 KO mice displayed protection from CFA induced mechanical hypersensitivity, thermal sensitivity, and reduces paw edema compare to WT mice. AEG-1 KO mice displayed enhanced recovery from paclitaxel induced mechanical hypersensitivity and cold sensitivity compared to WT mice. AEG-1 expression levels in the periaqueductal grey, spinal cord, and L4-6 corresponding dorsal root ganglia collected from C57BL6/J mice treated with 8mg/Kg paclitaxel or 50% CFA (3 days post injection) showed no difference from control groups. Conclusions: Our data suggest that AEG-1 may be involved in inflammatory and CIPN related nociception in C57BL6/J mice.https://scholarscompass.vcu.edu/gradposters/1093/thumbnail.jp
Sensorless torque estimation in multidegree-of-freedom flexible systems
This paper presents a sensorless torque estimation algorithm for multidegree-of-freedom flexible systems. The proposed algorithm makes it possible to estimate externally applied torques due to flexible system s interaction with the environment without taking any measurement from the system. The algorithm is based on modifying the disturbance observer in order to decouple the reflected torque waves out of the total disturbance on the actuator. Then Reflected torque waves are used along with the actuator s current and velocity to estimate flexible system parameters, dynamics and the external torques or disturbances. Several experimental results are included in order to confirm the validity of the proposed torque estimation algorithm
Constraints on Dark Photon from Neutrino-Electron Scattering Experiments
A possible manifestation of an additional light gauge boson , named
as Dark Photon, associated with a group is studied in neutrino
electron scattering experiments. The exclusion plot on the coupling constant
and the dark photon mass is obtained. It is shown
that contributions of interference term between the dark photon and the
Standard Model are important. The interference effects are studied and compared
with for data sets from TEXONO, GEMMA, BOREXINO, LSND as well as CHARM II
experiments. Our results provide more stringent bounds to some regions of
parameter space.Comment: 22 pages, 6 figures, 2 tables, text improved, fig.6 updated,
references adde
BAYESIAN ANALYSIS OF THE COMPOUND COLLECTIVE MODEL: THE NET PREMIUM PRINCIPLE WITH EXPONENTIAL POISSON AND GAMMA–GAMMA DISTRIBUTIONS
This article develops a Bayesian analysis of the Compound Collective Model utilizing the Net Premium Principle, considering single-period models. With respect to likelihoods, we used a Poisson distribution for the number of claims and an Exponential distribution for the severity of the accident/event. Gamma distributions were used for the prior distributions. The robustness of the posterior premium was analyzed with respect to the prior distribution specification of the severity of the accident/event, utilizing contamination classes, these being the class of all the distributions and that of all the unimodal distributions with the same mode. Numerical applications of the results obtained were performed.Compound collective model; Bayesian analysis; Robustness analysis.
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