Adubação foliar com macro e micronutrientes no crescimento de mudas micropropagadas do abacaxizeiro cv. Gold [Ananas comosus (L.) Merrill] em diferentes recipientes

Parte da Dissertação do primeiro autor, apresentada ao Centro de Ciências Agrárias da Universidade Federal do Espírito Santo/PPGPV, Alegre-ES, como parte das exigências para obtenção do grau de Mestre em Produção Vegetal/Fitotecnia.

Five generations of peace operations: from the "thin blue line" to "painting a country blue"

This article combines both international practice and analytical contributions into a systematic and synthetic presentation of the evolution of peace operations from their modern inception in 1948 to the present. It seeks to serve a didactic purpose in proposing a basic structure for Brazilian scholars' burgeoning debate on peace operations and intervention, rather than a definitive characterization of blue helmet practice. Peace operations' progression is traced through five analytical "generations," each adding a crucial factor distinguishing it from its predecessors. Each generation is placed in relation to changes in the nature of conflict and in the interpretation of the foundational principles of peace operations, and links to broader theoretical issues in International Relations are made explicit at each stage.

Psicopatia e traços da personalidade em estudantes universitários

RESUMO: No presente estudo é investigada a existência de relações entre a psicopatia e os traços de personalidade em estudantes universitários. Este estudo tem como objectivo o estabelecimento de correlações entre os traços psicopáticos e as dimensões da personalidade decorrentes do Modelo dos Cinco Factores em estudantes universitários. A amostra é constituída por 400 estudantes universitários, provenientes de várias universidades da zona de Lisboa, de vários cursos universitários e de ambos os sexos, de forma aleatória. As idades dos sujeitos constituintes da amostra estão compreendidas entre os 17 e os 46 anos de idade (M = 24,26 e DP = 4,435). Por forma a atingir o objectivo proposto para este estudo, recorreu-se à aplicação de um questionário sócio-demográfico e de três medidas de avaliação, nomeadamente: a Escala PDS (Paulhus Deception Scale) de Delroy L. Paulhus, Ph.D. (1998), a Escala LSRP (Levenson Self-Report Psychopathy Scale) de Levenson, Kiehl e Fitzpatrick (1995) e o Inventário NEO-PI-R (Inventário de Personalidade NEO Revisto) de Costa e McCrae (1992), sendo que existe a aferição desta medida de avaliação para a população portuguesa dos autores Lima e Simões (1997). De acordo com os resultados obtidos, podemos constatar que existem associações significativas entre as dimensões da Personalidade e as dimensões da Psicopatia. Verificou-se que os indivíduos que possuem índices elevados de Neuroticismo e baixos indíces de Extroversão e Abertura à Experiência possuem uma maior propensão para apresentarem características psicopáticas. Por outro lado, também se constatou que os indivíduos que possuem baixos índices de Amabilidade e Conscienciosidade apresentam também uma maior probabilidade de possuírem características psicopáticas. ABSTRACT: In the present study, it is investigated the existence of relationships between psychopathy and personality traits in university students. The goal of this study is the establishment of correlations between psychopathic traits and the personality dimensions, recurring from the five factor model in university students. The sample is composed by 400 university students, from various universities in the Lisbon area, from different courses and from both genders, randomly picked. The ages of the subjects in the sample are in between 17 and 46 years old (M = 24,26 and SD = 4,435). By means of reaching the goal proposed for this study, there were applied a socio-demographic questionnaire and three evaluation measures, namely the PDS Scale (Paulhus Deception Scale) from Delroy L. Paulhus, Ph.D. (1998), the LSRP Scale (Levenson Self-Report Psychopathy Scale) from Levenson, Kiehl e Fitzpatrick (1995) and the NEO-PI-R Inventory (Revised NEO Personality Inventory) from de Costa e McCrae (1992), as there is an admeasurement from this measure for the portuguese population from authors Lima e Simões (1997). Considering the obtained results, we can state that there exist significant associations between the Personality dimensions and the Psychopathy dimensions. It was verified that the individuals that possess high indexes of Neuroticism and low indexes of Extroversion and Openness, have a higher propensity to present psychopathic characteristics. On the other hand, it was also found that the individuals that possess low indexes of Lovability and Consciousness also present a higher probability of having psychopathic characteristics.

Filicídio e matricídio : quando a relação entre mãe e filho se torna fatal

RESUMO: A morte de um filho às mãos da sua mãe ou de uma mãe às mãos do seu filho, é uma realidade rara que provoca uma reacção colectiva de choque e repulsa. Por seu turno, a comunidade cientifica procura explicações, classificações e formas de prever e evitar novas tragédias. No presente estudo foram objecto de análise cinco casos de filicídio e seis casos de matricídio, tendo-se procedido à avaliação de características de personalidade e enquadramento social e familiar, através da realização de uma entrevista e a aplicação de dois testes de personalidade, um teste de inteligência geral e um teste de impulsividade. Com excepção de 4 casos de matricidas, os restantes sujeitos não apresentaram problemas mentais graves nem marcada perturbação anti-social de personalidade, sendo os factores determinantes mais comuns de natureza social e familiar, que, associados às respectivas características de personalidade e nível de inteligência, conduziram os sujeitos ao acto, levando a concluir pela necessidade do reforço das políticas sociais e de saúde mental, bem como, da necessidade de um maior conhecimento do sujeito que pratica o crime por parte de quem tem a responsabilidade de o julgar e de quem tem o encargo de o reabilitar. ABSTRACT: The death of a child at the hands of its mother or of a mother at the hands of her child is a rare reality that causes a collective reaction of shock and disgust. In turn, the scientific community seeks explanations, classifications and ways of predicting and preventing further tragedies. The current study examined five cases of filicide and six cases of matricide, and personality characteristics and social and family frameworks were assessed, through the application of an interview, two personality tests, a general intelligence test and an impulsivity test. With the exception of 4 cases of matricide, the remaining subjects did not show any serious mental problems or severe anti-social personality disturbance, the most common factors being of social and family nature. These factors, combined with their personality characteristics and intelligence level, led the subjects to the act, thus showing the need to strengthen social and mental health policies, as well as the need for a greater knowledge on the subject who commits the offence, from the part of those who are responsible for judging him and of those who are in charge of rehabilitating him.

Microcosmos no cinema português contemporâneo: um mundo pós – Big Brother

O projecto “Principais tendências no cinema português contemporâneo” nasceu no Departamento de Cinema da ESTC, com o objectivo de desenvolver investigação especializada a partir de um núcleo formado por alunos da Licenciatura em Cinema e do Mestrado em Desenvolvimento de Projecto Cinematográfico, a que se juntaram professores-investigadores membros do CIAC e convidados. O que agora se divulga corresponde a dois anos e meio de trabalho desenvolvido pela equipa de investigação, entre Abril de 2009 e Novembro de 2011. Dada a forma que ele foi adquirindo, preferimos renomeá-lo, para efeitos de divulgação, “Novas & velhas tendências no cinema português contemporâneo”.

How important is personality in neurological patient' quality of life perception?

In the last decades, the value of research on neurological patients’ quality of life (QOL) has become unquestionable. In this context, most studies focus on the relationship between patients’ QOL and their sociodemographic and/or clinical and/or modifiable psychosocial characteristics. They give us information regarding the sociodemographic and clinical profile most prone to low QOL reports and also on ways to improve patients’ QOL (e.g., targeting their selfesteem). Nevertheless, little is known about the role nonmodifiable psychosocial variables can have on patients’ QOL perception. Consequently, the aim of the present study is to explore the relationship between QOL and personality in neurological patients.

Short-term scheduling considering five-minute and hour-ahead energy resource management

The introduction of new distributed energy resources, based on natural intermittent power sources, in power systems imposes the development of new adequate operation management and control methods. This paper proposes a short-term Energy Resource Management (ERM) methodology performed in two phases. The first one addresses the hour-ahead ERM scheduling and the second one deals with the five-minute ahead ERM scheduling. Both phases consider the day-ahead resource scheduling solution. The ERM scheduling is formulated as an optimization problem that aims to minimize the operation costs from the point of view of a virtual power player that manages the network and the existing resources. The optimization problem is solved by a deterministic mixed-integer non-linear programming approach and by a heuristic approach based on genetic algorithms. A case study considering a distribution network with 33 bus, 66 distributed generation, 32 loads with demand response contracts and 7 storage units has been implemented in a PSCADbased simulator developed in the field of the presented work, in order to validate the proposed short-term ERM methodology considering the dynamic power system behavior.

Optimal location of gas supply units in natural gas system network

Natural gas industry has been confronted with big challenges: great growth in demand, investments on new GSUs – gas supply units, and efficient technical system management. The right number of GSUs, their best location on networks and the optimal allocation to loads is a decision problem that can be formulated as a combinatorial programming problem, with the objective of minimizing system expenses. Our emphasis is on the formulation, interpretation and development of a solution algorithm that will analyze the trade-off between infrastructure investment expenditure and operating system costs. The location model was applied to a 12 node natural gas network, and its effectiveness was tested in five different operating scenarios.

The impact of night work on subjective reports of well-being: an exploratory study of health care workers from five nations

OBJECTIVE: To carry out a survey data collection from health care workers in Brazil, Croatia, Poland, Ukraine and the USA with two primary goals: (1) to provide information about which aspects of well-being are most likely to need attention when shiftwork management solutions are being developed, and (2) to explore whether nations are likely to differ with respect to the impacts of night work on the well-being of workers involved in health care work. METHODS: The respondents from each nation were sorted into night worker and non-night worker groups. Worker perceptions of being physically tired, mentally tired, and tense at the end of the workday were examined. Subjective reports of perceived felt age were also studied. For each of these four dependent variables, an ANCOVA analysis was carried out. Hours worked per week, stability of weekly work schedule, and chronological age were the covariates for these analyses. RESULTS: The results clearly support the general proposal that nations differ significantly in worker perceptions of well-being. In addition, perceptions of physical and mental tiredness at the end of the workday were higher for night workers. For the perception of being physically tired at the end of a workday, the manner and degree to which the night shift impacts the workers varies by nation. CONCLUSIONS: Additional research is needed to determine if the nation and work schedule differences observed are related to differences in job tasks, work schedule structure, off-the-job variables, and/or other worker demographic variables.

Personality, emotion, and mood in agent-based group decision making

Group decision making plays an important role in organizations, especially in the present-day economy that demands high-quality, yet quick decisions. Group decision-support systems (GDSSs) are interactive computer-based environments that support concerted, coordinated team efforts toward the completion of joint tasks. The need for collaborative work in organizations has led to the development of a set of general collaborative computer-supported technologies and specific GDSSs that support distributed groups (in time and space) in various domains. However, each person is unique and has different reactions to various arguments. Many times a disagreement arises because of the way we began arguing, not because of the content itself. Nevertheless, emotion, mood, and personality factors have not yet been addressed in GDSSs, despite how strongly they influence results. Our group’s previous work considered the roles that emotion and mood play in decision making. In this article, we reformulate these factors and include personality as well. Thus, this work incorporates personality, emotion, and mood in the negotiation process of an argumentbased group decision-making process. Our main goal in this work is to improve the negotiation process through argumentation using the affective characteristics of the involved participants. Each participant agent represents a group decision member. This representation lets us simulate people with different personalities. The discussion process between group members (agents) is made through the exchange of persuasive arguments. Although our multiagent architecture model4 includes two types of agents—the facilitator and the participant— this article focuses on the emotional, personality, and argumentation components of the participant agent.

Living conditions and receptive vocabulary of children aged two to five years

OBJECTIVE: To assess the receptive vocabulary of children aged between two years and six months and five years and eleven months who were attending childcare centers and kindergarten schools. METHODS: An analytical cross-sectional study was carried out in the municipality of Embu, Southeastern Brazil. The Peabody Picture Vocabulary Test and analysis of factors associated with children's performance were applied. The sample consisted of 201 children of both genders, aged between two and six years. Statistical analysis was performed using multivariate analysis and logistic regression model. The dependent variable analyzed was test performance and the independent variables were child's age, mother's level of education and family socio-demographic characteristics. RESULTS: It was observed that 44.3% of the children had performances in the test that were below what would be expected for their age. The factors associated with the best performances in the test were child's age (OR=2.4; 95% CI: 1.6-3.5) and mother's education level (OR= 3.2; 95% CI: 1.3-7.4). CONCLUSIONS: Mother's education level is important for child's language development. Settings such as childcare and kindergarten schools are protective factors for child development in families of low income and education.

Five models for lepton mixing

We produce five flavour models for the lepton sector. All five models fit perfectly well - at the 1 sigma level - the existing data on the neutrino mass-squared differences and on the lepton mixing angles. The models are based on the type I seesaw mechanism, on a Z(2) symmetry for each lepton flavour, and either on a (spontaneously broken) symmetry under the interchange of two lepton flavours or on a (spontaneously broken) CP symmetry incorporating that interchange - or on both symmetries simultaneously. Each model makes definite predictions both for the scale of the neutrino masses and for the phase delta in lepton mixing; the fifth model also predicts a correlation between the lepton mixing angles theta(12) and theta(23).