Employment dynamics during economic recoveries

Employment turnover was significantly lower following the Great Recession than following the previous two recessions.Employment

Starting a business during a recovery: this time, it's different

Business cycles ; Economic conditions

Ambigüedad estratégica en contratos públicos de suministro

En este trabajo se presenta, sobre la base de un modelo de intercambio entre agentes privados de Douglas Bernheim y Michael Whinston (1998), un contrato típico de suministro entre el gobierno y una firma privada, en un contexto dinámico y sin renegociación. La firma debe realizar inversiones (observables, no verificables) para mejorar la calidad o para reducir costos o ambos tipos. Los resultados obtenidos por Bernheim, D. y M. Whinston se aplican cuando el comprador es el gobierno benevolente, siempre que valore por igual las utilidades de los agentes privados y la recaudación de impuestos para pagar el bien no distorsione la asignación de recursos en otros mercados. Cuando la firma debe realizar inversiones para reducir costos, el contrato incompleto que sólo especifica todas las variables verificables es óptimo; y cuando la firma debe realizar inversiones para mejorar la calidad, es óptimo un contrato incompleto por ambigüedad estratégica (no incluye todas las variables verificables). Sin embargo, cuando se incorpora el supuesto de que la inversión en reducción de costos disminuye la calidad del bien, el contrato incompleto tradicional no es óptimo y se alcanza el first best con uno incompleto por ambigüedad estratégica. Lo mismo sucede cuando se combinan ambos modelos y la firma debe realizar ambos tipos de inversión, afecte o no la inversión en reducción de costos el nivel de calidad.

Agent-based simulation of a project fractal company

In response to competitive pressures small and medium enterprises have begun to form alliances between them. This allows each company to increase their ability to react and adapt to changes in their business environment, concentrating on their core competencies, increase the availability of resources and gain economies of scale. Thus, the project-based fractal company model enables virtual and temporary integration between different companies to achieve specific business objectives. The successful implementation of the model lies in the establishment of client-server relationships between project managers. This paper analyses the use of agentbased simulation to show behaviors that emerge from the interaction of project managers and resources managers when they establish client-server relationships. To do this, use Netlogo language as a tool intends to demonstrate emergent behavior resulting from interactions between agents of the fractal company.XVII Workshop Agentes y Sistemas Inteligentes (WASI).Red de Universidades con Carreras en Informática (RedUNCI

Agent-based simulation of a project fractal company

In response to competitive pressures small and medium enterprises have begun to form alliances between them. This allows each company to increase their ability to react and adapt to changes in their business environment, concentrating on their core competencies, increase the availability of resources and gain economies of scale. Thus, the project-based fractal company model enables virtual and temporary integration between different companies to achieve specific business objectives. The successful implementation of the model lies in the establishment of client-server relationships between project managers. This paper analyses the use of agentbased simulation to show behaviors that emerge from the interaction of project managers and resources managers when they establish client-server relationships. To do this, use Netlogo language as a tool intends to demonstrate emergent behavior resulting from interactions between agents of the fractal company.XVII Workshop Agentes y Sistemas Inteligentes (WASI).Red de Universidades con Carreras en Informática (RedUNCI

Learning from the rubble:the case of Christchurch, New Zealand, after the 2010 and 2011 earthquakes

Learning after a disaster is crucial in creating more resilient places. However, many societies are repeatedly overwhelmed by disasters. This can be because of missed opportunities to learn in post-disaster settings or because of actions implemented that seem to be highly relevant to recovery in the short term, but potentially constrain aspirations in the longer term. This paper assesses learning processes among state and non-state actors and the ways in which these are bridged and scaled up to wider improvements in governance. Aiming to enrich understanding of post-disaster learning, it explores different actors' response actions after the earthquakes in Christchurch, New Zealand, in 2010 and 2011. On the one hand, 'learning by doing' is occurring, yet, on the other hand, systemic learning is hindered by mismatches between top-down steering and bottom-up initiatives. The study concludes that better linking and synergising of learning processes among different levels is vital for enhancing resilience in post-disaster societies

Validation Of A Cariogenic Biofilm Model To Evaluate The Effect Of Fluoride On Enamel And Root Dentine Demineralization

Due to gingival recession both enamel and root dentine are at risk of developing caries. Both tissues are exposed to a similar environment, however there is not a validated model to evaluate the effect of fluoride on these dental substrates simultaneously. Hence, this study aimed to validate a caries model to evaluate the effect of fluoride to prevent demineralization on enamel and root-dentine. Streptococcus mutans UA159 biofilms were formed on saliva-coated bovine enamel and root dentine slabs (n = 12 per group) mounted in the same well of culture plates. The biofilms were exposed 8x/day to 10% sucrose and treated 2x/day with fluoridated solutions containing 0, 150, 450, or 1,350 ppm F; thus, simulating the use of low to high fluoride concentration toothpastes. The pH values of the culture medium was monitored 2x/day as a biofilm acidogenicity indicator. After 96 h, biofilms were collected for fluoride concentration analysis. The percentage of surface hardness loss (% SHL) was calculated for slabs. The fluoride uptake by the enamel and dentine was also determined. The model showed a dose-response because the biofilm and fluoride uptake increased and % SHL decreased at increasing fluoride concentrations (p < 0.05). Fluoride in the biofilm formed on dentine and fluoride uptake by dentine were higher than those for enamel. With the same fluoride concentration treatment, the percentage of reduction of demineralization was lower for dentine than for enamel. In conclusion, the model was validated in terms of a dose-response effect of fluoride on enamel and root dentine. Furthermore, the findings support the clinical data, suggesting that higher fluoride concentrations are necessary to control caries of root dentine than of enamel.111Foundation of UNICAMP (FUNCAMP) [4252

Aportes de Danzaterapia a la visión holística de Terapia Ocupacional en el área de rehabilitación física

Tesis (Terapeuta Ocupacional)... respecto a Danzaterapia no hay estudios ni investigaciones como complemento a la práctica tradicional de la Terapia Ocupacional. Algunas de las áreas de Terapia Ocupacional donde es más utilizada la Danzaterapia son visual, discapacidad auditiva, entre otros. (Lavandez G, 2009). Es por esto que consideramos relevante poder indagar en esta disciplina para conocer los fundamentos de la Danzaterapia y como se puede complementar con la práctica de la Terapia Ocupacional, en donde esta tiene una mirada que se enfoca en recuperar la funcionalidad y normalizar un cuerpo para realizar una ocupación que sea efectiva en el ambiente (Gary Kielhofner)

Secondary Control Strategies for Frequency Restoration in Islanded Microgrids with Consideration of Communication Delays

One of the well-known methods to share active and reactive power in microgrids (MGs) is droop control. A disadvantage of this method is that in steady state the frequency of the MG deviates from the nominal value and has to be restored using a secondary control system (SCS). The signal obtained at the output of the SCS is transmitted using a communication channel to the generation sources in the MG, correcting the frequency. However, communication channels are prone to time delays, which should be considered in the design of the SCS; otherwise, the operation of the MG could be compromised. In this paper, two new SCSs control schemes are discussed to deal with this issue: 1) a model predictive controller (MPC); and 2) a Smith predictor-based controller. The performance of both control methodologies are compared with that obtained using a conventional proportional integral-based SCS using simulation work. Stability analysis based on small signal models and participation factors is also realized. It is concluded that in terms of robustness, the MPC has better performance.FONDECYT 1140775 Advanced Center for Electrical and Electronic Engineering Basal Project FB0008 Fondequip EQM13005

Una persistencia en el amor

Playback. Ensayo de una despedida (2019), de Agustina Comedi, es un corto mezcla de documental con ficción, que recuerda las noches del grupo Kalas, artistas drag que en la década de los ‘80 y principios de los ‘90 ocupaban los escenarios del underground cordobés, en un tiempo bisagra entre los vestigios de la última dictadura cívico militar y los inicios de la crisis del Sida en la ciudad. Al igual que con El silencio es un cuerpo que cae (2018), Comedi llega a esta historia a partir de una colección de VHS que en aquella oportunidad le había permitido reconstruir la historia de su padre —militante por los derechos LGBTQI en los años ‘70—, y conocer a La Delpi, su último novio y ahora la narradora de este nuevo film que se adentra en el juego fantasioso de las Kalas y en su particular modo de hacer memoria. __ ARK: http://id.caicyt.gov.ar/ark:/s22504524/o3lk2r2t