Public and private sector wages interactions in a general equilibrium model

This paper develops a dynamic general equilibrium model in which the public and the private sector interact in the labor market. Previous studies that analyze the labor market effects of public sector employment and wages have mostly assumed exogenous rules for public wage and public employment. We show that theories that equalize wages with marginal products in the private sector can rationalize the interaction of public and private sector wages when extended to accommodate a non-trivial government sector/public sector union that endogenously determines public employment and wages. Our model suggests a positive correlation between public and private sector wages. Any increase in tax revenues, coupled with the existence of a positive public-private sector wage gap, makes working in the public sector an attractive option. Thus, a positive neutral productivity shock increases public and private sector wages. More interestingly, even a private-sector specific productivity shock spills-over to the public sector, increasing public wages. These facts lend some support to the wage leading role of the private sector. Nevertheless, at the same time, a positive shock to public sector wages would lead to an increase in private sector wages, via the flow of workers from the private to the public sector. JEL Classification: C32, J30, J51, J52, E62, E63, H50Labor market, public employment, public wages, Trade Unions

Rate equations approach to simulate world population trends

According to UN statistical data and projections world population will begin to decrease by the middle of this century. This paper uses rate equations (fully analogous to those employed in condensed matter physics) to simulate the time evolution of world population, making use of UN population data in the time interval 1900-2010, and to extrapolate the evolution of world population into the near future. This approach has not been used in economics and population dynamics. The simulation predicts a population decline by midcentury. The economic consequences of population decline would be far reaching

Estudi sobre la relació entre episotomía i esquinç en els parts eutòcis de la Fundació Hospital de Manacor (FHM)

Objectiu: Determinar la incidència d’esquinços i sutures del total de parts eutòcics de FHM i intentar correlacionar el risc d’esquinç en funció de diferents variables durant el part. Material i mètode: Estudi descriptiu restrospectiu durant el 4t trimestre de 2007 de 269 parts eutòcics agafant com a variables l’edat, paritat, administració d’anestèsia epidural, hores d’expulsiu, realització d’episiotomia, esquinç i grau. Resultats: Sembla ser que pesos fetals majors de 3.5kg tenen un 20% més de risc d’esquinç(OR:1.2). Períodes amb expulsiu superior a l’hora es correlacionen amb 10% menys d’esquinços (OR:0.9).de la mateixa manera que el risc d’esquinç de les parteres amb un expulsiu que no se’ls ha practicat episiotomia i que ha durat més d’una hora és el doble que aquelles amb un expulsiu inferior a una hora (OR:2.0).Objective: To study the perineal lacerations and suture incidence of the total amount of normal deliveries in our Hospital and to correlate the laceration risk between different variables. Material and methods: Aretrospective population-based study was carried out on the 269 normal deliveries during the 4th trimester of 2007 taking as variables: age, parity, epidural anesthesia administration, expulsion stage, episiotomy, laceration and grade. Results: It seems that foetal weight of 3.5Kg or more has a 20% increased risk of laceration (OR:1.2). If the expulsion stage is longer than an hour, it is related with a 10% lower tax of laceration (OR:0.9), in the same way, we find a double increased risk of laceration for those women who haven’t an episiotomy and have a prolonged expulsive stage(OD:2.0)

Associations between inter-limb asymmetries in jump and change of direction speed tests and physical performance in adolescent female soccer players

The association between asymmetries in jump and change of direction (COD) with physical performance in several sports show inconclusive results. The purposes of this study were to: (1) measure inter-limb asymmetries in three distinct groups in adolescent female soccer players and, (2) to determine the association between inter-limb asymmetries and physical performance in different age groups. Fifty-four players were distributed in three age groups: U-18, U-16 and U-14. All of them performed a series of jumps, sprints and change of direction speed tests. Asymmetries were assessed as the percentage difference between limbs, with the equation: 100/Max value (right and left) * in value (right and left) * −1 + 100. Mean inter-limb asymmetries were 2.91%, 4.82% and 11.6% for 180° COD, single leg hop and single leg countermovement jump tests respectively, but higher percentages of asymmetries were observed in many players individually. U-18 and U-16 showed significant differences on 180° left COD compared to U-14. Effect size (ES): 0.80 and 0.74, respectively; U-18 presented differences on single left leg hop test compared to U-14, ES: −0.72; U-16 also showed differences on 40 m speed compared to U-14, ES 0.87 (All p 0.05). Jumping and COD physical tests show asymmetries in adolescent female soccer players, but these asymmetries do not interfere with physical performance. The largest asymmetry was observed in the single leg countermovement jump, and no asymmetries between groups were found. Due to the high variability in the direction of asymmetries, it is recommended to consider players’ individual asymmetries for designing specific training programs

Rotating black holes in Eddington-inspired Born-Infeld gravity: an exact solution

We find an exact, rotating charged black hole solution within Eddington-inspired Born-Infeld gravity. To this end we employ a recently developed correspondence or {\it mapping} between modified gravity models built as scalars out of contractions of the metric with the Ricci tensor, and formulated in metric-affine spaces (Ricci-Based Gravity theories) and General Relativity. This way, starting from the Kerr-Newman solution, we show that this mapping bring us the axisymmetric solutions of Eddington-inspired Born-Infeld gravity coupled to a certain model of non-linear electrodynamics. We discuss the most relevant physical features of the solutions obtained this way, both in the spherically symmetric limit and in the fully rotating regime. Moreover, we further elaborate on the potential impact of this important technical progress for bringing closer the predictions of modified gravity with the astrophysical observations of compact objects and gravitational wave astronomy.Comment: 17 double column pages, 7 figures, revtex4-1 styl

Hybrid simulation-optimization based approach for the optimal design of single-product biotechnological processes

In this work, we present a systematic method for the optimal development of bioprocesses that relies on the combined use of simulation packages and optimization tools. One of the main advantages of our method is that it allows for the simultaneous optimization of all the individual components of a bioprocess, including the main upstream and downstream units. The design task is mathematically formulated as a mixed-integer dynamic optimization (MIDO) problem, which is solved by a decomposition method that iterates between primal and master sub-problems. The primal dynamic optimization problem optimizes the operating conditions, bioreactor kinetics and equipment sizes, whereas the master levels entails the solution of a tailored mixed-integer linear programming (MILP) model that decides on the values of the integer variables (i.e., number of equipments in parallel and topological decisions). The dynamic optimization primal sub-problems are solved via a sequential approach that integrates the process simulator SuperPro Designer® with an external NLP solver implemented in Matlab®. The capabilities of the proposed methodology are illustrated through its application to a typical fermentation process and to the production of the amino acid L-lysine.Support from the Spanish Ministry of Education and Science (projects DPI2008-04099 and CTQ2009-14420-C02) and the Spanish Ministry of External Affairs (projects A/023551/09, A/031707/10 and HS2007-0006)

Sma3s: A three-step modular annotator for large sequence datasets

This is an Open Access article distributed under the terms of the Creative Commons Attribution License.Automatic sequence annotation is an essential component of modern 'omics' studies, which aim to extract information from large collections of sequence data. Most existing tools use sequence homology to establish evolutionary relationships and assign putative functions to sequences. However, it can be difficult to define a similarity threshold that achieves sufficient coverage without sacrificing annotation quality. Defining the correct configuration is critical and can be challenging for non-specialist users. Thus, the development of robust automatic annotation techniques that generate high-quality annotations without needing expert knowledge would be very valuable for the research community. We present Sma3s, a tool for automatically annotating very large collections of biological sequences from any kind of gene library or genome. Sma3s is composed of three modules that progressively annotate query sequences using either: (i) very similar homologues, (ii) orthologous sequences or (iii) terms enriched in groups of homologous sequences. We trained the system using several random sets of known sequences, demonstrating average sensitivity and specificity values of ∼85%. In conclusion, Sma3s is a versatile tool for high-throughput annotation of a wide variety of sequence datasets that outperforms the accuracy of other well-established annotation algorithms, and it can enrich existing database annotations and uncover previously hidden features. Importantly, Sma3s has already been used in the functional annotation of two published transcriptomes.This work has been partially financed by the National Institute for Bioinformatics (www.inab.org), a platform of Genoma España and the EC project ‘Advancing Clinico-Genomic Trials on Cancer’ (contract no. 026996).Peer Reviewe

Taller Vertical de Arquitectura : Nivel VI - Curso 1997

Presentación de propuesta y corrección de trabajo de cátedra. Alumno: J. Gonzalo Pérez Taller: García / Morzilli, arqs. Docentes: Raúl Cóppola y Carla García, arqs. Tema: Biblioteca Pública Provincial y Escuela de Bibliotecología Ubicación: “La Manzana del Mercado", calles 3, 4, 48 y 49, ciudad de La Plata Superficie: 45000 m2Facultad de Arquitectura y Urbanism

Taller Vertical de Arquitectura : Nivel VI - Curso 1997

Presentación de propuesta y corrección de trabajo de cátedra. Alumno: J. Gonzalo Pérez Taller: García / Morzilli, arqs. Docentes: Raúl Cóppola y Carla García, arqs. Tema: Biblioteca Pública Provincial y Escuela de Bibliotecología Ubicación: “La Manzana del Mercado", calles 3, 4, 48 y 49, ciudad de La Plata Superficie: 45000 m2Facultad de Arquitectura y Urbanism