Avaliação da usabilidade de um sistema informatizado de controle acadêmico: um estudo com coordenadores e secretários de cursos stricto sensu da UFRN

The aim of this study is to assess the usability of the Integrated Management System for Academic Activities (SIGAA) for the sensu stricto postgraduate programs at Universidade Federal do Rio Grande do Norte. The study was based on ergonomic criteria proposed by Bastien and Scapin (1993) and the Federal Government s Handbook of Usability (2010). The methodology used was a descriptive data survey involving an online questionnaire, and a sample of 46 system users, composed of coordinators and secretaries from the sensu stricto postgraduate programs. In addition to this procedure, open interviews were held with the users as well as a documental analysis of calls registered by them at the SIGAA between May 2012 and June 2013. Data analysis showed that a number of additional usability criteria need to be implemented, primarily related to ergonomic problems of orientation, error management and workload. Based on the analyses, several changes were proposed that may streamline secretarial activities, as well as provide greater satisfaction and interaction between the SIGAA and its users

Fortalecimento do controle interno governamental: diagnóstico e propostas para a Controladoria Geral do Estado do RN

O objetivo deste trabalho é fazer uma proposta de intervenção na Controladoria Geral do Estado do Rio Grande do Norte, com o intuito de fortalecê-la, tendo como base a Emenda Constitucional nº 45/2009, que propõe a inserção das macrofunções do Controle Interno: Auditoria Governamental, Controladoria, Corregedoria, Ouvidoria e Carreiras Específicas para os órgãos de Controle Interno. Para dar suporte a proposta, foi feita uma revisão da literatura sobre controles públicos, controle interno governamental, macrofunções do controle interno e sobre carreiras públicas no Brasil. Para propor as mudanças foram realizados dois diagnósticos no órgão, por meio de entrevistas, e constatados problemas na área de gestão organizacional e de pessoal. Diante dos resultados apresentados por meio dos diagnósticos, foram propostas mudanças e feitas comparações entre a estrutura atual e a proposta, procurando evidenciar a vantagem da última sobre a primeira, em termos de eficiência operacional, economia de meio, economia de execução, amplitude no atendimento a população, proteção e combate à corrupção, fomento ao controle social, promoção da cidadania e justiça social

Um método eficiente para resolução do problema de Despacho Ótimo de Reativos com controle discreto do TAP dos transformadores

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

Controle profissional de biofilme dentário como estratégia para manutenção da saúde periodontal de pacientes com aparelho ortodôntico fixo: análise comparativa entre diferentes períodos

The presence of fixed orthodontics appliances interfere on sanitation, allowing periodontal diseases to appear, despite the fact patients keep on visiting the dentist every month. This research aims to determine a protocol for the mechanical control of the dental biofilm performed by the professional. A protocol that was able to maintain the periodontal health of the patients under orthodontic treatment with fixed appliances, and in order to do so, it used a non-controlled, randomized and blind clinical essay. The sample involved 40 adolescents who were under the installation of fixed orthodontics appliances and it was divided in three groups, as follows: monthly controlled group (group 1) composed of 11 patients, the quarterly controlled group (group 2) with 16 patients and the semestrial controlled group (group 3) with 13 patients. For data collection, an interview and clinical exams with probing depth measurement, quantity of keratinized mucosa, Gingival Index and the Plaque Index were used. On the initial exam all patients received brushing guidelines as well as the professional control of dental biofilm, with periodontal scaler, Robinson s brush and prophylactic paste. However, Group 1 returned every month for control procedures; Group 2 every three months and Group 3 after six months. The intervention had a six-month duration (for all the three groups), when all the exams were repeated by another examiner who did not know which group each patient was inserted in. Finally, the research concluded that despite the fact there is no statistically significant difference among the three groups, clinically the patients from the monthly group presented a better response to professional control, with less accumulation of dental biofilm and less rate of gingival inflammation. Thus, the mechanical control of the dental biofilm performed by the professional could not avoid gingival increase, characterized by the raise of probing depth measurement, neither the quantity of keratinized mucosa

Doença periodontal e angina pectoris estável: um estudo caso-controle

The search which it aim was to analyze the Periodontal Disease as a risk factor for the development of the Stable Angina Pectoris. For that, 120 patients (52 blokes and 68 wenches ), ages ranging from 40 to 65 years old, and attended to the Hemodinamic´s Sector of the Natal Hospital Center, showing the historic of Angina Pectoris to accomplishment of cinecoronariografhy. Before the accomplishment of this exam, the patients were submitted to interview, to investigate the possible risk factors for the Cardiovascular diseases , and it was followed of clinical periodontal examination to evaluate the presence of Periodontal Disease. After the cinecoronariography, the patients who presented diagnosis of important arterial obstruction (above 70%) were enrolled to the case grup. However the individuals with arteries free of obstruction, or obstrution below 30%, were considered without historic of Cardiovascular disease and therefore enrolled for the control grup. The groups were paired by the variables age and gender. From the analysis of the results, a did not observed statisticment the significant association between the presence of the Periodontal Disease, probing depth, periodontal attachment level, severity and extension index of the Periodontal Disease, besides the visible plaque index (VPI) an gingival bleeding index (GBI) regarding to the existence of Stable Angina Pectoris. Nevertheless , it was identified statisticment the significant association between the sistemic arterial hypertension , seric level of total cholesterol, LDL, HDL and triglycerides, showing all of them, classic risk factors appointed by the literature. Therefore, it was conclued that Periodontal Disease did not represent association with the StableAngina Pectoris at least among the studied population

Eficácia do carfentrazone-ethyl no controle de plantas aquáticas latifoliadas em caixas-d'água

Atualmente, alguns herbicidas estão sendo desenvolvidos para o controle de plantas daninhas aquáticas. O objetivo deste trabalho foi avaliar a eficácia do carfentrazone-ethyl em ambiente aquático para o controle pós-emergente de aguapé, alface-d'água e salvínia. O trabalho foi desenvolvido em caixas-d'água, no período de julho a setembro de 2004, no NUPAM - FCA/UNESP, em Botucatu. O delineamento experimental adotado foi o de blocos ao acaso, com sete tratamentos e quatro repetições, sendo as unidades experimentais constituídas pelas caixasd'água. Os tratamentos foram os seguintes: testemunha sem herbicida; Aurora 400 CE (75, 150 e 300 mL ha-1); Roundup (3,0 L ha-1), Aurora 400 CE + Roundup (75 mL + 3,0 L ha-1) e Aurora 400 CE + Arsenal N.A. (75 mL + 2,0 L ha-1). Observou-se que o tratamento Aurora 400 CE (300 mL ha-1) é altamente eficaz no controle de alface-d'água (Pistia stratiotes); o tratamento Roundup (3,0 L ha-1) é altamente eficaz no controle de aguapé (Eichhornia crassipes); o tratamento Aurora 400 CE + Roundup (75 mL + 3,0 L ha-1) é eficaz no controle de aguapé (E. crassipes), alface-d'água (P. stratiotes) e salvínia (Salvinia auriculata); e o tratamento Aurora 400 CE + Arsenal (75 mL + 2,0 L ha-1) é eficaz no controle de aguapé (E. crassipes) e alface-d'água (P. stratiotes). A mistura Aurora 400 CE + Roundup (75 mL + 3,0 L ha-1) apresentou-se viável e foi o único tratamento eficaz no controle das três espécies estudadas.

Controle de plantas daninhas na cultura do algodoeiro (Gossypium hirsutum L.) em solo anteriormente ocupado por vegetação de Cerrado

Estudou-se os efeitos de herbicidas, isolados ou combinados, na cultura do algodão (Gossypium hirsutum L.) e eficiência no controle das plantas daninhas. O experimento foi conduzido na Fazenda de Ensino e Pesquisa da Faculdade de Engenharia de Ilha Solteira - UNESP em solo Latossolo Vermelho Escuro franco argilo-arenoso, localizada no município de Selvíria, Estado de Mato Grosso do Sul, Brasil. Os tratamentos testados com as doses em kg i.a/ha foram: alachlor a 2,15 e 2,58 em pré-emergência (pré), trifluralina a 0,96 em pré-plantio incorporado ao solo (ppi) isolada ou combinada com MSMA a 1,89, ou bentazon a 0,72 ou diuron a 1,20 em pós-emergência (pós) em jato dirigido, MSMA a 2,52 em pós, linuron a 1,0 em pré diuron a 1,6 em pré ou pós e testemunhas com e sem capina. O delineamento experimental utilizado foi o de blocos ao acaso com doze tratamentos e quatro repetições. As aplicações em ppi e a semeadura foram realizadas dia 11. 12.81 e as em pré dia 18.12.81, com um pulverizador costal de pressão constante (CO2) de 30 1b/pol2, com barra de quatro bicos tipo leque Albuz verde e consumo de calda de 250 l/ha. As aplicações em pós foram realizadas. no dia 27.12.81, com o mesmo pulverizador com um bico tipo defletor, polijet azul, com protetor de jato, com pressão de 40 1b/pol2 e consumo de 500 I/ha. As espécies dominantes foram capim - colchão (Digitaria sangnalis (L.) Scop) e caruru (Amaranthus viridis L.) que foram excelentemente controladas, até 90 dias após a semeadura, por alachlor, diuron em pré, trifluralina + diuron, que reduziram mais de 80% do peso da biomassa seca da parte aérea destas. Os herbicidas não causaram fitotoxicidade à cultura. A presença das plantas daninhas reduziu em 58,9% a produção de algodão em caroço.

Controle ótimo H∞ de sistemas não-lineares com modelos fuzzy takagi-sugeno

Neste trabalho é proposta uma metodologia de rastreamento de sinais e rejeição de distúrbios aplicada a sistemas não-lineares. Para o projeto do sistema de rastreamento, projeta-se os controladores fuzzy M(a) e N(a) que minimizam o limitante superior da norma H∞ entre o sinal de referência r(t) e o sinal de erro de rastreamento e(t), sendo e(t) a diferença entre a entrada de referência e a saída do sistema z(t). No método de rejeição de distúrbio utiliza-se a realimentação dinâmica da saída através de um controlador fuzzy Kc(a) que minimiza o limitante superior da norma H∞ entre o sinal de entrada exógena w(t) e o sinal de saída z(t). O procedimento de projeto proposto considera as não-linearidades da planta através dos modelos fuzzy Takagi-Sugeno. Os métodos são equacionados utilizando-se inequações matriciais lineares (LMIs), que quando factíveis, podem ser facilmente solucionados por algoritmos de convergência polinomial. Por fim, um exemplo ilustra a viabilidade da metodologia proposta.

Controle ótimo H2 e H¥ com modificação de zeros para o problema de rastreamento usando LMI

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

Algoritmos evolutivos dedicados à reconfiguração de redes radiais de distribuição sob demandas fixas e variáveis: estudo dos operadores genéticos e parâmetros de controle

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

Lócus de controle e conceito de maternidade e paternidade em adolescentes

Locus of control is a construct that seeks to explain people's perceptions about the source of control of events, if the subject's own - internal - or belonging to some element outside of oneself - external. The location of individual s locus of control will suffer influence of their developmental period. During adolescence, individuals turn to the construction of their identity, and the structuring of sexual identity is a relevant part of this process, since the roles of males and females are the most important from the socio-cultural point of view. One of the roles that adolescents can take is the mother or father. We chose to head the adolescents who are not mothers and fathers, and question them about their concepts of parenthood. It is hypothesized that adolescents with internal locus of control will probably develop concepts of maternity and paternity in which they attach to themselves the responsibility for children. The aim of this study was to relate the locus of control s predominant dimension in adolescence and the way that these young people conceptualize parenthood. This is an exploratory analytical cross-sectional study accomplished with 400 adolescents from the classes of the sixth to ninth grade of high school at public schools in Natal / RN. We used as protocols: structured questionnaire involving sociodemographic questions and questions about the concept of parenthood, and the Multifactorial Scale of Locus of Control. Data were analyzed using descriptive and inferential statistics, with the aid of statistical package SPSS 18.0. The results regarding questions about the concept of maternity and paternity were analyzed using the analysis program often ALCESTE 4.7. The results showed that for boys and girls, maternity and paternity were characterized by the acquisition and assumption of responsibilities of adulthood. This concept is supported by the locus of control s classification of individuals, since most of the subjects of this study was characterized as individuals who tend to take responsibility for their life's events. For young people from lower classes (as the subjects of this research), the project of autonomy and social mobility is realized by the constitution of his own family and the ability to sustain it

Modelo de programação matemática para controle do crescimento da vegetação sob redes de distribuição de energia elétrica

Conselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq)

Influência do cálcio na calda de pulverização sobre a eficácia do carfentrazone-ethyl no controle de Euphorbia heterophylla

Alguns herbicidas podem ter sua eficácia de controle das plantas daninhas diminuída quando o cálcio encontra-se presente na calda de pulverização. Sendo assim, o presente trabalho foi desenvolvido com o objetivo de estudar a influência do cálcio na eficácia do herbicida carfentrazone-ethyl aplicado em pós-emergência sobre plantas adultas de Euphorbia heterophylla. Foram conduzidos dois experimentos com as concentrações de cálcio variando de 30 a 240 ppm e de 0 a 1.000 ppm respectivamente em cada experimento. O delineamento experimental utilizado foi o de blocos ao acaso, com quatro repetições. Observou-se que a eficácia do herbicida carfentrazone-ethyl não é afetada pela presença de cálcio em concentrações na calda de pulverização de até 1.000 ppm e que, na dose de 30 g i.a.ha-1 o herbicida é eficiente no controle de plantas adultas de E. heterophylla.

Inseticidas químicos e microbianos no controle da lagarta-do-cartucho na fase inicial da cultura do milho

The objective this work was to evaluate the effect of microbial and chemical insecticides on the fall armyworm Spodoptera frugiperda in the development initial phase of crop corn. The work was lead in the experimental area of the State University of Mato Grosso do sul, in Cassilandia (MS) city. The treatments had been: 1) control; 2) fipronil; 3) thiametoxan; 4) Beauveria bassiana (0,5 kg of p.c/ha), 5) Beauveria bassiana (1 kg of p.c/ha), 6) teflubenzuron and 7) spinosad, in the doses and recommended way of application. After the tenth second after the emergency of the plants (DAE), had been day applied the treatments in foliar spraying (PF), being evaluated to the 2, 9, 15 and 21 days after the application (DAA), the number of small caterpillars (lesser that 1,5 cm) for parcel in 20 showed plants. The applied results show that teflubenzuron and spinosad in PF to the 12 DAE had been most efficient (71 and 83% respectively). The microbial's insecticides had not differed significantly from the chemical insecticides in the percentage of plants attacked for the pest and the 15 and 21 DAA.

Tontura em idosos institucionalizados da cidade do NATAL/RN: Um estudo caso-controle em vestibulopatas e não-vestibulopatas

the institutionalized elderly presents for being more fragile a lot of body balance s changes, which can induce falls and health frailty. One of the consequences of it is the appearance of dizziness, vestibular or not. This study aims to identify the risk factors related to dizziness in institutionalized elderly, with and without vestibular disorders, in the city of Natal-RN. Method: a case-control study realized in 12 regulated by Health Surveillance Long Term Care Institutions for the elderly in Natal-RN. Elected seniors with good cognitive level and able to walk, totaling 115 individuals, and of these, 102 were selected according to the presence of dizziness in the last year (n = 51) and their controls (n = 51), paired by sex and age. The 51 elderly patients with dizziness were divided into 3 groups case: case one, for elderly with dizziness and without vestibulopathy (n=38); case two, for elderly with dizziness and vestibulopathy (n=13) and case three, for all the seniors with dizziness, or added to the case 1 case 2 (n=51). The 51 seniors who served as controls were also divided into three groups, according to the number of individuals of each case: control 1, n = 38, control 2, n = 13 control and 3 (sum of 1 control with control 2), n = 51. As possible risk factors were analyzed variables related to characteristics of the institution, to the habits of life of older people and those concerned with the health of the elderly. For statistical analysis, we used the chi-square or Fisher exact test for a significance level of 5% and calculating the association magnitude between variables by measuring the Odds Ratio. Results: as risk factors for dizziness without vestibular disorders were found the presence of hypertension and cardiovascular disease, as well as the presence of three or more disorders for elderly and use of gastric protector drugs. For the elderly group from case two were found no associated risk factor. For elderly patients with dizziness in the case group three, we observed the same risk factors found for the elderly in the case group one, plus the presence of osteoarthritis pathology, which was also significant for this group. Conclusion: dizziness in institutionalized elderly is associated with systemic common diseases in this age group and the vestibulopathy presents itself as pathology on an isolated way, not being possible, with our data, associate it with non-risk factors