QUARK MEAN-FIELD THEORY AND CONSISTENCY WITH NUCLEAR-MATTER

1/N(c) expansion in QCD (with N(c) the number of colors) suggests using a potential from meson sector (e.g., Richardson) for baryons. For light quarks a sigma-field has to be introduced to ensure chiral symmetry breaking (chi-SB). It is found that nuclear matter properties can be used to pin down the chi-SB modeling. All masses, M(N), m-sigma, m-omega, are found to scale with density. The equations are solved self-consistently.

Consistency of super-poincaré covariant superstring tree amplitudes

Using pure spinors, the superstring was recently quantized in a manifestly ten-dimensional super-Poincaré covariant manner and a covariant prescription was given for tree-level scattering amplitudes. In this paper, we prove that this prescription is cyclically symmetric and, for the scattering of an arbitrary number of massless bosons and up to four massless fermions, it agrees with the standard Ramond-Neveu-Schwarz prescription.

Consistency of side choice in the milking parlour by holstein-friesian cows and its relationship with their reactivity and milk yield

Dairy cows often have to choose which of two sides to enter in the milking parlour. Some cows are very consistent in this choicė, and it is common to assume that when these cows are more disturbed are being milked in their non-preferred side. Such disturbance might involve significantly poor welfare. In order to assess this assumption, we decided to study the behaviour and milk yield of dairy cows and their relationships with side preference in the milking parlour. The study was carried out at Cambridge University Farm, in a two-sided tandem milking parlour. The data collection followed the daily management routine. We recorded the side chosen by each cow (left or right) during 40 milking sessions. Data from 70 cows, which were present in at least 25 milking sessions (mode = 36), were included in the statistical analysis. Cows' reactivity (CR) during premilking udder preparation, time spent fitting the milking cluster (FT), milk yield (MY) and duration of milking (DM) were measured. There was evident individual variation in the consistency of side choice. Individual differences (ANOVA, P < 0.001) were also found in CR, FT, MY and DM; although these variables were not significantly affected by the side or the interaction animal × side (ANOVA, P < 0.05). The comparison between left and right side means (paired t-test) of these variables did not show significant differences (P < 0.05). We concluded that there is no evidence that the cows were discomforted or stressed when milked in the non-preferred side of the milking parlour. © 2001 Elsevier Science B.V.

Quantum consistency of the superstring

Using arguments based on BRST cohomology, the pure spinor formalism for the superstring in an AdS 5×S 5 background is proven to be BRST invariant and conformally invariant at the quantum level to all orders in perturbation theory. Cohomology arguments are also used to prove the existence of an infinite set of non-local BRST-invariant charges at the quantum level. © SISSA 2005.

Consistency between light-front quantization and covariantization for zero modes

In the light-cone gauge choice for Abelian and non-Abelian gauge fields, the vector boson propagator carries in it an additional spurious or unphysical pole intrinsic to the choice requiring a careful mathematical treatment. Research in this field over the years has shown us that mathematical consistency only is not enough to guarantee physically meaningful results. Whatever the prescription invoked to handle such an object, it has to preserve causality in the process. On the other hand, the covariantization technique is a well-suited one to tackle gauge-dependent poles in the Feynman integrals, dispensing the use of ad hoc prescriptions. In this work we show that the covariantization technique in the light-cone gauge is a direct consequence of the canonical quantization of the theory. © World Scientific Publishing Company.

On the consistency conditions to braneworlds in scalar-tensor gravity for arbitrary dimensions

We derive an one-parameter family of consistency conditions to braneworlds in the Brans-Dicke gravity. The General Relativity case is recovered by taking a correct limit of the Brans-Dicke parameter. We show that it is possible to build a multiple AdS brane scenario in a six-dimensional bulk only if the brane tensions are negative. Besides, in the five-dimensional case, it is showed that no fine tuning is necessary between the bulk cosmological constant and the brane tensions, in contrast to the Randall-Sundrum model. Copyright © owned by the author(s) under the terms of the Creative Commons Attribution-NonCommercial- ShareAlike Licence.

La flexibilidad del ADPIC y su eventual erosión en las negociaciones bilaterales, multilaterales y regionales

Incluye Bibliografía

Consistency of the population projections prepared by CELADE with those of the national governments

El CELADE elabora proyecciones nacionales de poblacion para los 20 paises de la region, en la mayoria de los casos en colaboracion con las oficinas gubernamentales, lo que le otorga a aquellas un caracter oficial. El Centro tambien asesora a los paises en la elaboracion de proyecciones especificas y presta asistencia tecnica; en forma reciente ha disenado un paquete computacional para la preparacion y analisis preliminares de las proyecciones de poblacion. Los problemas mas frecuentes que surgen del trabajo conjunto con los paises dicen relacion con la rotacion del personal administrativo y profesional, la falta de personal calificado, la formulacion de metas no consistentes con la realidad demografica del pais.

La eventual participación de Panamá en el movimento Latinoamericano hacia la integración economica: texto preliminar

Este documento fue preparado por la Secretaría de la CEPAL a solicitud del Gobierno de Panamá, y se distribuye ahora con su autorización, sin que ello implique necesariamente que en su contenido se reflejen sus puntos de vista. Debe, pues, considerarse como un documento de consulta y referencia.

Review of CARIFORUM-EU EPA in development cooperation and WTO compatability

The Cotonou Agreement which succeeded the Lomé IV Agreement and was signed in Cotonou in June 2000 established a comprehensive framework to govern social, economic and political relations between the Africa, Caribbean, Pacific (ACP) grouping and the European Union (EU). At the centre of the partnership are objectives relating to economic development, the reduction and eventual eradication of poverty, and the smooth and gradual integration of ACP States into the world economy. In order to accomplish these objectives, the Cotonou Agreement provides for the conclusion between the ACP and the EU of “new World Trade Organization (WTO) compatible trading arrangements, removing progressively barriers to trade between them and enhancing cooperation in all areas relevant to trade” (Article 36.1). The conclusion of economic partnership agreements (EPAs) represented one way to achieve a WTO compatible instrument and had to be negotiated during the period starting from September 2002 until 31 December 2007 to replace the trade provisions of the Cotonou Agreement. After three and half years of negotiations, CARIFORUM and the European Commission (EC) finally concluded a comprehensive EPA with the EC on 16 December 2007 when an Agreement was initialed. The EPA Parties agreed to sign it later after a review of the provisions at both the national and regional levels. In CARIFORUM, various comments have been made from governments, Nongovernmental organizations (NGOs), the private sector and the labour movement about the strengths and weaknesses of the EPA. This review comes in this context and is confined to the development cooperation provisions and the question of WTO compatibility and consistency with the Doha Development Agenda (DDA) negotiations and existing WTO provisions on special and differential treatment.

Interfacial integrity of low-shrinkage composite restorations related to the filling technique and consistency

Fundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP)