32,714 research outputs found
Lattice theory of finite-size effects above the upper critical dimension
We present a perturbative calculation of finite-size effects near of
the lattice model in a -dimensional cubic geometry of size with
periodic boundary conditions for . The structural differences between
the lattice theory and the field theory found previously in
the spherical limit are shown to exist also for a finite number of components
of the order parameter. The two-variable finite-size scaling functions of the
field theory are nonuniversal whereas those of the lattice theory are
independent of the nonuniversal model parameters.One-loop results for
finite-size scaling functions are derived. Their structure disagrees with the
single-variable scaling form of the lowest-mode approximation for any finite
where is the bulk correlation length. At , the large-
behavior becomes lowest-mode like for the lattice model but not for the
field-theoretic model. Characteristic temperatures close to of the
lattice model, such as of the maximum of the susceptibility
, are found to scale asymptotically as ,
in agreement with previous Monte Carlo (MC) data for the five-dimensional Ising
model. We also predict asymptotically. On a
quantitative level, the asymptotic amplitudes of this large - behavior close
to have not been observed in previous MC simulations at because
of nonnegligible finite-size terms caused by the
inhomogeneous modes. These terms identify the possible origin of a significant
discrepancy between the lowest-mode approximation and previous MC data. MC data
of larger systems would be desirable for testing the magnitude of the
and terms predicted by our theory.Comment: Accepted in Int. J. Mod. Phys.
History and Implications of the Missouri Test-Oath Case
Cummings v. Missouri (1867) is often overlooked in modern legal history, and very little scholarly literature exists chronicling the case’s implications for contemporary constitutional jurisprudence. When awareness does exist, there is a tendency to classify Cummings as simply a Civil War-era religious liberty case—a mischaracterization which reflects a fundamental misunderstanding of the ruling’s background and modern relevance. In reality, born out of post-war paranoia over loyalty and past Confederate allegiances, the Cummings case is most notable as landmark judicial precedent in defining the U.S. Constitution’s proscriptions of bills of attainder and ex post facto laws, and possesses very little significance today for religious liberty jurisprudence. Beginning with an analysis of the contemporary historical and political circumstances at hand, this article seeks to reframe the scholarly conversation surrounding Cummings to reflect the true place of importance it holds in the anthology of American legal history
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The cumulative effects of known susceptibility variants to predict primary biliary cirrhosis risk.
Multiple genetic variants influence the risk for development of primary biliary cirrhosis (PBC). To explore the cumulative effects of known susceptibility loci on risk, we utilized a weighted genetic risk score (wGRS) to evaluate whether genetic information can predict susceptibility. The wGRS was created using 26 known susceptibility loci and investigated in 1840 UK PBC and 5164 controls. Our data indicate that the wGRS was significantly different between PBC and controls (P=1.61E-142). Moreover, we assessed predictive performance of wGRS on disease status by calculating the area under the receiver operator characteristic curve. The area under curve for the purely genetic model was 0.72 and for gender plus genetic model was 0.82, with confidence limits substantially above random predictions. The risk of PBC using logistic regression was estimated after dividing individuals into quartiles. Individuals in the highest disclosed risk group demonstrated a substantially increased risk for PBC compared with the lowest risk group (odds ratio: 9.3, P=1.91E-084). Finally, we validated our findings in an analysis of an Italian PBC cohort. Our data suggested that the wGRS, utilizing genetic variants, was significantly associated with increased risk for PBC with consistent discriminant ability. Our study is a first step toward risk prediction for PBC
Finding Forensic Evidence In the Operating System\u27s Graphical User Interface
A branch of cyber security known as memory forensics focuses on extracting meaningful evidence from system memory. This analysis is often referred to as volatile memory analysis, and is generally performed on memory captures acquired from target systems. Inside of a memory capture is the complete state of a system under investigation, including the contents of currently running as well as previously executed applications. Analysis of this data can reveal a significant amount of activity that occurred on a system since the last reboot. For this research, the Windows operating system is targeted. In particular, the graphical user interface component that includes the taskbar, start menu and notification system will be examined for possible forensic artifacts. The techniques presented in this research are valuable to a forensic investigator trying to find evidence. They are also useful for penetration testers trying to determine if a tool has left any evidence behind for investigators to find.
The research described in this thesis led to development of a scanning technique that served as the basis for a Volatility plugin that automates finding GUI related artifacts. To support this research, a lab consisting of three virtual machines (VM) was created using VMware. Two Windows 10 virtual machines were created for generating artifacts and one Linux was created for scanning the Windows machines. These machines were connected to a live router briefly for gathering network information.
This these explores the strengths and limitations of this searching discovered during research. Lastly, future applications of this research are covered
Doping dependance of the spin resonance peak in bilayer high- superconductors
Motivated by a recent experiment on the bilayer
YCaBaCuO superconductor and based on a bilayer
model, we calculate the spin susceptibility at different doping densities in
the even and odd channels in a bilayer system. It is found that the intensity
of the resonance peak in the even channel is much weaker than that in the odd
one, with the resonance position being at a higher frequency. While this
difference decreases as the doping increases, and both the position and
amplitude of the resonance peaks in the two channels are very similar in the
deeply overdoped sample. Moreover, the resonance frequency in the odd channel
is found to be linear with the critical temperature , while the resonance
frequency increases as doping decreases in the even channel and tends to
saturate at the underdoped sample. We elaborate the results based on the Fermi
surface topology and the d-wave superconductivity.Comment: 6 pages, 5 figure
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