Aplicação e avaliação de desempenho de um sistema de otimização em tempo real em uma unidade de produção de propeno.

Com o objetivo de aumentar o lucro de plantas químicas, a Otimização em Tempo Real (RTO) é uma ferramenta que busca determinar as condições ótimas operacionais do processo em estado estacionário, respeitando as restrições operacionais estabelecidas. Neste trabalho foi realizada a implementação prática de um ciclo RTO em um processo de destilação por recompressão de vapor (VRD), propileno-propano, da Refinaria de Paulínia (Petrobras S.A.), a partir de dados históricos da planta. Foram consideradas as principais etapas de um ciclo clássico de RTO: identificação de estado estacionário, reconciliação de dados, estimação de parâmetros e otimização econômica. Essa unidade foi modelada, simulada e otimizada em EMSO (Environment for Modeling, Simulation and Optimization), um simulador de processos orientado a equações desenvolvido no Brasil. Foram analisados e comparados dois métodos de identificação de estado estacionário, um baseado no teste estatístico F e outro baseado em wavelets. Ambos os métodos tiveram resultados semelhantes e mostraram-se capazes de identificar os estados estacionários de forma satisfatória, embora seja necessário o ajuste de parâmetros na sua implementação. Foram identificados alguns pontos estacionários para serem submetidos ao ciclo RTO e foi possível verificar a importância de partir de um estado estacionário para a continuidade do ciclo, já que essa é uma premissa do método. A partir dos pontos analisados, os resultados deste estudo mostram que o RTO é capaz de aumentar o ganho econômico entre 2,5-24%, dependendo das condições iniciais consideradas, o que pode representar ganhos de até 18 milhões de dólares por ano. Além disso, para essa unidade, verificou-se que o compressor é um equipamento limitante no aumento de ganho econômico do processo.

La conciliación del empleo y del hogar: respuesta y reflejo de una organización del trabajo construida desde la institución del género

A la luz del debate en torno a la relación entre la vida laboral y familiar, este artículo propone un modelo compuesto por las variables: sexo, edad, estudios, parentesco y dos índices nombrados por vsp y vsf. El primero (vsp) trata de situar a la población ocupada en una escala que refleje la situación en términos de modalidad de contrato, jornadas, ingresos y supervisión. El segundo refleja las cargas familiares. Se plantean dos versiones distintas del modelo: vsp como dependiente o vsf. El objetivo de este ejercicio es doble: 1) observar hasta qué punto las cargas domésticas influyen en la posición dentro del puesto de trabajo remunerado, y 2) averiguar qué variable sociodemográfica tiene mayor influencia sobre ellas. Los datos han sido extraídos de la Encuesta de Calidad de Vida en el Trabajo (ECVT 2001, 2002 y 2003). A la luz de los resultados, la distribución por sexo en «vsp» y «vsf» es significativamente distinta: los hombres asalariados ocupan las mejores posiciones. Además, el modelo sólo actúa para las mujeres asalariadas principales de familia (cabezas de familia y cónyuges). Esta última observación es completamente coherente con una organización de trabajo construida desde la institución del género.

¿Maternidad y periodismo? La conciliación de la vida familiar y laboral en la prensa diaria valenciana

On the basis of biographical in-depth interviews with female journalists, we researched the issue of work-family relationship with regard to maternity. Work-family integration is a relevant study ambit from both a gender policy. The paper focuses on the daily press industry in eastern Spain. Results suggest both structural factors (e.g. working conditions, resources, age) and normative ones (e.g. stereotypes, organizational model, the meaning of motherhood) affect the decision to have children. Maternity is the result of a strategy of action on integration. These observations raise the debate about health, equality and productivity in the media industries.

El significado de profesión y su influencia en la conciliación con la vida familiar: análisis sobre la toma de decisiones de las periodistas de la prensa valenciana

The article exposes the meaning of profession for the journalists and how it affects the work-family reconciliation. The paper focuses on the daily press industry in eastern Spain. The information is collected by 38 biographical in-depth interviews with female journalists. The results show two approaches to define the profession: the personnel and the group one. The first approach shows the personal accomplishment. The second one shows the stereotype of journalist. Both approaches demand dedication. In addition, they are linked to other structural factors of the job (ex-. schedules) that define different labor personal situations (also according to professional and vital trajectories of the journalists). That way, the meaning of profession affects the decision making about the reconciliation.

Grupos estratégicos en el sector hotelero español: diferencias de desempeño intra e intergrupo

El mundo es cada vez más pequeño debido a los avances tecnológicos y a la mayor experiencia de los directivos hoteleros y de los turistas, lo que provoca que la rivalidad entre destinos en el sector turístico sea cada vez mayor. Ante esta situación, este estudio se centra en el sector hotelero español y aplica los grupos estratégicos para determinar de qué forma compiten los hoteles y cómo influyen sus comportamientos estratégicos en su desempeño. Asimismo, se ofrecen acciones para mejorar el desempeño de un hotel en función del grupo estratégico al que pertenezca. La relevancia de este estudio radica en que clarifica la complejidad estratégica a la que están sometidos los directivos de los hoteles y les sirve de guía para la toma de decisiones estratégicas.

Acciones públicas de sensibilización de género: el esfuerzo de la administración regional y local en comunicación publicitaria (1999-2007)

El artículo analiza las iniciativas de comunicación relacionadas con la igualdad de oportunidades entre mujeres y hombres. El objetivo es analizar con enfoque de género las acciones realizadas por parte de las instituciones públicas regionales y locales para sensibilizar y promover la conciliación entre la vida familiar y laboral de seis comunidades autónomas (Andalucía, Cataluña, Comunidad Valenciana, Galicia, Madrid y País Vasco) y de sus capitales, desde 1999 (cuando se aprueba la ley de conciliación) hasta 2007 (se aprueba la ley de igualdad). La información sobre publicidad convencional fue proporcionada por Infoadex. Para la recogida de otro tipo de iniciativas a través de medios menos convencionales se acudió a cuatro fuentes institucionales: 1) Ayuntamientos de las capitales, como fuente estrictamente local, 2) Diputaciones de la capital de la Comunidad Autónoma, como fuente provincial, 3) Direcciones Generales de la Mujer o instituciones análogas como fuente de información a nivel regional o autonómico y, por último, 4) otras concejalías vinculadas al tema de la corresponsabilidad, cuyo radio de acción también es autonómico. Los resultados, aunque con diferencias entre regiones, reflejan carencias en la cobertura de las acciones que llevan a cuestionar la falta de estrategia política en términos de comunicación, pese a la introducción sistemática de estos objetivos en la agenda internacional (ONU y UE) y del gobierno español. En consecuencia, las campañas publicitarias e iniciativas recogidas contribuyen a la visibilización del problema y al empoderamiento, pero no tanto al objetivo de la paridad.

Asymmetric rivalry within and between strategic groups

Our study examines asymmetric rivalry within and between strategic groups defined according to the size of their members. We hypothesize that, owing to several forms of group-level effects, including switching costs and efficiency, strategic groups comprising large firms expect to experience a large amount of retaliation from firms within their group and accommodation from the group comprising smaller firms. Small firms, on the other hand, expect to experience a small amount of retaliation from the group comprising large firms and no reaction from the other firms in their group. We estimate the effect of group-level strategic interactions on firm performance. Our analysis reveals that the rivalry behavior within and between groups is asymmetric, which supports the dominant-fringe relation between firms, as described in our hypothesis.

Los puestos de dirección en el ámbito deportivo: revisión de las teorías y estudio sobre el caso de la mujer

Desde las últimas décadas, la trayectoria profesional de la mujer y su acceso a cargos directivos ha ganado relevancia como fenómeno de estudio. El presente artículo, aportará el descubrimiento de los diferentes estudios sobre las distintas características y actitudes que dificultan, limitan o impiden el acceso de las mujeres para lograr el potencial laboral máximo que quieran conseguir en las organizaciones y entidades del mercado laboral, y concretamente dentro del sector de la actividad física y el deporte. La metodología seguida en la investigación es cuantitativa y transversal, con una muestra total obtenida de (N = 401). A modo de conclusión de la literatura analizada, se podría resaltar que las oportunidades de trabajo, el acceso o la promoción de las mujeres dentro de una organización o entidad se ven influenciados por las características personales, es decir, de la conciliación del trabajo, la familia y el hogar.

First molar size and wear within and among modern hunter-gatherers and agricultural populations

Apart from reflecting modern human dental variation, differences in dental size among populations provide a means for studying continuous evolutionary processes and their mechanisms. Dental wear, on the other hand, has been widely used to infer dietary adaptations and variability among or within diverse ancient human populations. Few such studies have focused on modern foragers and farmers, however, and diverse methods have been used. This research aimed to apply a single, standardized, and systematic quantitative procedure to measure dental size and dentin exposure in order to analyze differences among several hunter-gatherer and agricultural populations from various environments and geographic origins. In particular, we focused on sexual dimorphism and intergroup differences in the upper and lower first molars. Results indicated no sexual dimorphism in molar size and wear within the studied populations. Despite the great ethnographic variation in subsistence strategies among these populations, our findings suggest that differences in sexual division of labor do not affect dietary wear patterns.

The future of human rights protection in the new Libya: prospects and challenges. Jean Monnet Occasional Paper No. 6/2014

There is no doubt that demand for the respect of human rights was one of the factors behind the Arab Spring and Libya is no exception. Four decades of absolute dictatorship headed by Muammar Gaddafi had been further tainted with gross violations of human rights of Libyan citizens and restrictions on their basic freedoms. Before the revolution, Libya was a country where no political parties were allowed. Freedom of expression and the press were extremely restricted. Reports about the country’s human rights violations published by a number of international organizations documented large scale human rights abuses at the hands of the Gaddafi regime. The 17 February 2011 revolution in Libya led to a turning point in the country’s history. The regime of Muammar Gaddafi which had dominated the country since 1969 eventually collapsed, leading to the beginning of the painful task of reconciliation and state building. Nonetheless it is estimated that more than 7000 prisoners are held captive by various militias and armed groups without due process. This in addition to thousands of internally displaced persons. State building involves the consolidation of a democratic state based on a democratic constitution. In 2011, a constitutional declaration was adopted to replace the one that had been in effect since 1969. This was intended as a stop-gap solution to allow the new political forces unleashed in the country time to write a new democratic constitution. To help consolidate the democratic state, three elements are required: that human rights be placed at its core; that these rights are truly implemented and applied; and lastly that the independence of the judiciary is safeguarded. For all this to happen it is also essential to strengthen education on human rights by encouraging non-governmental organizations to take a stronger role in promoting human rights. Libyan citizens can only avail themselves of these rights and strengthen their implementation if they know what they are and how they can benefit from their implementation

How to boost EU–India relations. CEPS Policy Brief No. 341, 29 March 2016

India is an emerging player on the global stage, thanks to its growing economy and its strategic role in Asia as a balancing power. The EU cannot therefore ignore the rise of India, especially given its own aspirations to become an effective global actor – a status it has so far not managed to attain. The author of this CEPS Policy Brief argues that the EU and India need to nurture their relations, to move beyond the economic and bureaucratic limitations that currently characterise these relations and to work towards a reconciliation of different priorities that would be of benefit to both partners.

Face Your Fears: Cleaning Gobies Inspect Predators despite Being Stressed by Them

social stressors typically elicit two distinct behavioural responses in vertebrates: an active response (i.e., "fight or flight") or behavioural inhibition (i.e., freezing). Here, we report an interesting exception to this dichotomy in a Caribbean cleaner fish, which interacts with a wide variety of reef fish clients, including predatory species. Cleaning gobies appraise predatory clients as potential threat and become stressed in their presence, as evidenced by their higher cortisol levels when exposed to predatory rather than to non-predatory clients. Nevertheless, cleaning gobies neither flee nor freeze in response to dangerous clients but instead approach predators faster (both in captivity and in the wild), and interact longer with these clients than with non-predatory clients (in the wild). We hypothesise that cleaners interrupt the potentially harmful physiological consequences elicited by predatory clients by becoming increasingly proactive and by reducing the time elapsed between client approach and the start of the interaction process. The activation of a stress response may therefore also be responsible for the longer cleaning service provided by these cleaners to predatory clients in the wild. Future experimental studies may reveal similar patterns in other social vertebrate species when, for instance, individuals approach an opponent for reconciliation after a conflict.

Literature for human understanding.

Bibliography: p. 56-61.

One world in children's books.

Published through the participation of: Arts in Childhood Group, Arts Cooperative Service, Intergroup Education Committee.

What is the Community Services Block Grant Program?

The Community Services Block Grant (CSBG) Program was created by the federal Omnibus Budget Reconciliation Act of 1981. The CSBG Program provides a range of services which assist low-income people to attain the skills, knowledge and motivation necessary to achieve self-sufficiency. The program also may offer low-income people immediate life necessities such as food, shelter, medication, etc.