3,818 research outputs found
The Impact of Monetary Union and the Euro on European Capital Markets: What May Be Achieved in Capital Market Integration
Up to now, the Euro has been successful in replacing the traditional European currencies and in altering the landscape of European Capital Markets. Domestic users of the Euro are almost the same in number as the population of the United STates, although the Gross Domestic Products of the two economies are clearly not comparable. Still, if the Member States within the Euro-area truly want to be recognized as an integrated capital market, some work must be done. This Article will estimate, from current economic thought, what remains to be done and what can be achieved in the short term. Some historical analysis will help in identifying the players and the main trends at work. Moreover, some of the international issues that have been raised by the new role of the European Monetary Union (“EMU”) will be presented
Lockdown: Dynamic Control-Flow Integrity
Applications written in low-level languages without type or memory safety are
especially prone to memory corruption. Attackers gain code execution
capabilities through such applications despite all currently deployed defenses
by exploiting memory corruption vulnerabilities. Control-Flow Integrity (CFI)
is a promising defense mechanism that restricts open control-flow transfers to
a static set of well-known locations. We present Lockdown, an approach to
dynamic CFI that protects legacy, binary-only executables and libraries.
Lockdown adaptively learns the control-flow graph of a running process using
information from a trusted dynamic loader. The sandbox component of Lockdown
restricts interactions between different shared objects to imported and
exported functions by enforcing fine-grained CFI checks. Our prototype
implementation shows that dynamic CFI results in low performance overhead.Comment: ETH Technical Repor
SO(3) vs. SU(2) Yang-Mills theory on the lattice: an investigation at non-zero temperature
The adjoint SU(2) lattice gauge theory in 3+1 dimensions with the Wilson
plaquette action modified by a Z(2) monopole suppression term is reinvestigated
with special emphasis on the existence of a finite-temperature phase transition
decoupling from the well-known bulk transitions.Comment: 13 pages, 9 figures. Based on contributions to CONFINEMENT 2003 and
Lattice2003(topology). To be published in Proceedings of CONFINEMENT 2003,
Tokyo, Japa
SO(3) Yang-Mills theory on the lattice
We numerically investigate the phase structure of pure SO(3) LGT at zero and
non-zero temperature in the presence of a Z2 blind monopole chemical potential.
The physical meaning of the different phases, a possible symmetry breaking
mechanism as well as the existence of an order parameter for the finite
temperature phase transition are discussed.Comment: 3 pages, 2 figures LaTeX file. Uses espcrc2 style and amssymb
package. Talk given at Lattice2002(nonzerot), Boston. Corrected version with
one added referenc
A finite temperature investigation of dual superconductivity in the modified SO(3) lattice gauge theory
We study the SO(3) lattice gauge theory in 3+1 dimensions with the adjoint
Wilson action modified by a monopole suppression term and by
means of the Pisa disorder operator. We find evidence for a finite temperature
deconfinement transition driven by the condensation of U(1) magnetic charges. A
finite-size scaling test shows consistency with the critical exponents of the
3D Ising model.Comment: 14 pages, 4 figures. Layout changed, figures, text and references
added. To appear on Physics Letters
Cambios en las fracciones de fósforo del suelo causado por la agricultura sin reposición de nutrientes. Un caso de estudio
Estudios previos en suelos de la región pampeana indicaron que los fosfatos de calcio prevalecen dentro de la compleja mezcla de compuestos de fósforo (P) del suelo. En el presente trabajo, estudiamos las diferentes fracciones de P del suelo en una situación puntual de la región Pampeana. El muestreo fue llevado a cabo en un establecimiento localizado cerca de la ciudad de Junín (-34,585; -60,9589), en un suelo Hapludoll típico, serie Junín. El establecimiento se dedicó al pastoreo y cultivos esporádicos, pero desde hace 30 años cambió a agricultura continua. En ningún momento la fertilización igualó la pérdida de nutrientes causado por los cultivos. Las fracciones de P del suelo fueron determinadas utilizando una versión modificada del método clásico de extracción de Chang y Jackson. El P ligado al calcio disminuyó en términos absolutos y relativos (49,1%) y el fósforo ligado al aluminio y al hierro aumentaron (144,8 y 100,4%, respectivamente). Sin embargo, la proporción de estas últimas fracciones fue afectada por cambios en las fracciones de P orgánico y residual. Si el presente hallazgo puede ser generalizado, indicaría un cambio en la composición de las fracciones de P para los suelos más agriculturizados de la región.Previous studies in soils of the Pampas region indicate the prevalence of calcium phosphates within the very complex mix of phosphorus (P) compounds in the soils. We studied the changes in P fractions in a punctual situation in the Pampas region. The sampling was carried out in a farm located near the city of Junín (-34.585; -60.9589) and the soil was Junín series Typic Hapludoll. The farm was devoted to grazing and sporadic crops, but from the last 30 years changed to continuous agriculture. At no time fertilization matched nutrients removal by crops. The soil P fractions were determined using an improved version of the classical Chang and Jackson method. Phosphorus linked to calcium decreased in absolute and relative terms (49.1%) and P linked to aluminum and iron increased (144.8 and 100.4%, respectively). However, the proportion of latter fractions was affected by the changes in organic and residual P fractions. If present punctual finding could be generalized, it would indicate a change in the composition of P fractions in the most cropped soils of the regionFil: Barresi, O.. Universidad de Buenos Aires. Facultad de Agronomía; ArgentinaFil: Lavado, Raul Silvio. Consejo Nacional de Investigaciones Científicas y Técnicas. Oficina de Coordinación Administrativa Parque Centenario. Instituto de Investigaciones en Biociencias Agrícolas y Ambientales. Universidad de Buenos Aires. Facultad de Agronomía. Instituto de Investigaciones en Biociencias Agrícolas y Ambientales; ArgentinaFil: Chiocchio, Viviana Monica. Consejo Nacional de Investigaciones Científicas y Técnicas. Oficina de Coordinación Administrativa Parque Centenario. Instituto de Investigaciones en Biociencias Agrícolas y Ambientales. Universidad de Buenos Aires. Facultad de Agronomía. Instituto de Investigaciones en Biociencias Agrícolas y Ambientales; Argentin
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