Analysis of a reconfigurable UWB log-periodic antenna using the Method of Moments

In this article we discuss in detail the numerical implementation and computer simulations based on the Method of Moments (MoM) of the reconfigurable, ultra wideband (UWB) log-periodic antenna. The manufacturing and testing procedures are also addressed. The antenna was built utilizing low cost and/or recyclable materials and covers frequencies from 74 MHz to 2 GHz, through the discrete adjustment of its elements. The gain in a given frequency band of operation can also be changed by the reconfiguration of its elements. This antenna can be widely used in developing countries where scarce resources limit both the use of antennas in educational laboratory experiments and their use in industrial applications

Episódio depressivo grave ou demência de Pick?

Os autores descrevem o caso de uma mulher de 72 anos que matou seu marido na vigência de quadro psiquiátrico caracterizado por sintomas tanto depressivos como demenciais.The authors describe the case of a woman of 72 years old who killed her husband and showed symptoms either of depressien as well as dementia

Influence of Depression and Use of Alcohol and / or Tobacco by Parents in the Oral Health of Children with Disabilities

Objective: To investigate the influence of parental depression and substance use in the oral health care of children with disabilities. Material and Methods: A cross-sectional study was conducted involving 151 children with disabilities and their parents/caregivers. To detect the presence of depression and alcohol or tobacco use, the parents/caregivers answered three questionnaires: two versions of the Patient Health Questionnaire (PHQ), AUDIT (Alcohol Use Disorders Identification Test), and the Fagerstrom Test for Nicotine Dependence (FTND). Then, the children with disabilities underwent oral examination to evaluate biofilm control, gingival condition and the dental carie index (decayed, missing, and filled teeth - dmft ̸ DMFT). Results: There was a statistically significant association between tobacco use and dental caries in deciduous teeth (p=0.046). The children of smokers had six times greater need for dental treatment than that of non-smokers (OR= 6.36; CI= 1.3–30.5). There was no statistically significant association between the oral health of the children with disabilities and parental alcohol consumption and depression (p>0.05). Children with medical condition had a higher need for dental treatment than children with intellectual disability (p=0.003). Conclusion: Parental smoking habits increase dental caries in the deciduous teeth of children with disabilities, but parental depression and alcohol use do not influence the oral health of children with disabilities. Children with medical condition have more treatment needs than children with intellectual disability

Influence of Depression and Use of Alcohol and / or Tobacco by Parents in the Oral Health of Children with Disabilities

Objective: To investigate the influence of parental depression and substance use in the oral health care of children with disabilities. Material and Methods: A cross-sectional study was conducted involving 151 children with disabilities and their parents/caregivers. To detect the presence of depression and alcohol or tobacco use, the parents/caregivers answered three questionnaires: two versions of the Patient Health Questionnaire (PHQ), AUDIT (Alcohol Use Disorders Identification Test), and the Fagerstrom Test for Nicotine Dependence (FTND). Then, the children with disabilities underwent oral examination to evaluate biofilm control, gingival condition and the dental carie index (decayed, missing, and filled teeth - dmft ̸ DMFT). Results: There was a statistically significant association between tobacco use and dental caries in deciduous teeth (p=0.046). The children of smokers had six times greater need for dental treatment than that of non-smokers (OR= 6.36; CI= 1.3–30.5). There was no statistically significant association between the oral health of the children with disabilities and parental alcohol consumption and depression (p>0.05). Children with medical condition had a higher need for dental treatment than children with intellectual disability (p=0.003). Conclusion: Parental smoking habits increase dental caries in the deciduous teeth of children with disabilities, but parental depression and alcohol use do not influence the oral health of children with disabilities. Children with medical condition have more treatment needs than children with intellectual disability

Disciplina 1.1: Estado contemporâneo e suas transformações

As transformações e tensões do Estado contemporâneo: autonomia e permeabilidade, coerção e coordenação, coesão e fragmentação. O debate contemporâneo acerca dos papéis do Estado em relação a questões como: globalização, democracia, conhecimento, desenvolvimento e criseNúmero de páginas: 3 p.Número de slides: 85Ciência Política. Teoria Geral do EStad

Guidelines of the Brazilian Medical Association for the treatment of depression (complete version)

OBJECTIVE: Depression is a frequent and chronic condition with high levels of functional disability. Brazilian Medical Association Guidelines project proposed guidelines for diagnosis and treatment of the most common medical disorders. The objective of this paper is to present the original document that originated the abbreviated version available at the electronic address of Brazilian Medical Association. METHODS: This paper was based on guidelines developed in other countries and systematic reviews, randomized clinical trials and when absent, observational studies and recommendations from experts. Brazilian Medical Association proposed this methodology for the whole project. RESULTS: The following aspects are presented: prevalence, demographics, disability, diagnostics and sub-diagnosis, efficacy of pharmacological and psychotherapeutic treatment, costs and side-effects of different classes of available drugs in Brazil. Planning of different phases of treatment is22 also discussed. CONCLUSIONS: Guidelines are a good tool helping clinical decisions and are a reference for an attitude based on levels of evidence.OBJETIVO: A depressão é uma condição freqüente e crônica associada a níveis altos de incapacitação funcional. A Associação Médica Brasileira, através de seu projeto Diretrizes, buscou desenvolver guias para diagnóstico e tratamento das doenças mais comuns. O objetivo deste trabalho é o de apresentar o documento original que serviu de base a uma versão abreviada disponível no endereço eletrônico da Associação Médica Brasileira. MÉTODOS: A metodologia utilizada foi a proposta pela Associação Médica Brasileira para o projeto Diretrizes. Assim, o trabalho foi baseado em diretrizes desenvolvidas em outros países, aliados a artigos de revisão sistemáticos, ensaios clínicos randomizados e na ausência desses, estudos observacionais e recomendações de grupo de experts. RESULTADOS: São apresentados dados referentes à prevalência, demografia, incapacitação, diagnóstico e sub-diagnóstico de depressão. Em relação ao tratamento, são mostrados dados sobre a eficácia do tratamento medicamentoso e psicoterápico das depressões, além do perfil de custos e de efeitos colaterais das diferentes classes de medicamentos disponíveis no Brasil, como o planejamento das diferentes fases do tratamento. CONCLUSÕES: A Diretrizes se propõe a servir de base para uma atitude fundamentada em graus de evidências da literatura, auxiliando na tomada de decisões clínicas.Universidade Federal do Rio Grande do Sul Programa de Transtornos de Humor do Hospital de Clínicas de Porto AlegreDepartamento de Psiquiatria da FMUSP GRUDA (Grupo de Doencas Afetivas) do Instituto de Psiquiatria do HC-FMUSPUniversidade Federal de Pernambuco Núcleo de Assistência, Ensino e Pesquisa dos Transtornos Afetivos do Hospital das ClínicasUniversidade Federal de São Paulo (UNIFESP) Escola Paulista de MedicinaUniversidade do Rio de Janeiro Faculdade de MedicinaFundação Faculdade Federal de Ciências Médicas de Porto AlegreUNIFESP, EPMSciEL

Humic acids bioactivity: effects on root development and on the plasma membrane proton pump

A bioatividade de ácidos húmicos (AH) isolados de lodo da estação de tratamento de esgoto (AHL) e de vermicomposto (AHV) foi avaliada pela ação dessas substâncias sobre o transporte de prótons através da membrana plasmática de células de raízes de café e milho e sua relação com o desenvolvimento dessas espécies. Houve estímulo da área superficial radicular em ambas as espécies cultivadas com ambos AH, mostrando uma concentração ótima em torno de 40 mg L-1. Nessa condição, os tratamentos com AHL e AHV estimularam a H+-ATPase de membrana plasmática em plântulas de café e milho. Os AHL foram mais efetivos na promoção desses efeitos do que os AHV. A modificação do perfil cromatográfico dos AH em solução antes e após o cultivo das plântulas revelou que a interação planta-AH promoveu uma redistribuição das massas moleculares dessas substâncias, sugerindo uma dinâmica de mobilização de subunidades funcionais dos AH por exsudatos das raízes. A análise estrutural dos AH detectou a presença de grupamentos de auxina. A análise comparativa da ação desses dois AH sobre as espécies representantes de plantas monocotiledôneas (milho) e dicotiledôneas (café) apontam para a ativação da H+-ATPase de plasmalema como possível marcador metabólico de bioatividade dos ácidos húmicosThe bioactivity of humic acids (HA) isolated from sludge of the station of sewer treatment (HAL) and from vermicompost (HAV) was evaluated through the action of those substances on primary transport of protons of the plasma membrane of coffee and corn root cells and its relationship with the development of those species. A stimulation in the superficial area of roots was observed for both species cultivated with both humic acids, exhibiting an optimum concentration, about 40 mg L-1 of HA. In this condition the treatment with HAL and HAV stimulated the plasma membrane H+-ATPase of corn and coffee roots. HAL were more effective to promote those effects than HAV. The modification of the chromatographic profile of the HA in solution before and after the cultivation of the seedlings revealed that the interaction plant-HA promoted a rearrangement of the average molecular weight of those substances suggesting a dynamic mobilization of bioactive subunits of the HA by plant exudates. The structural analysis of the HA has detected the presence of auxin groups. A comparative analysis of the action of those HA on the monocotyledonous (corn) and dicotyledonous (coffee) plants indicates to the activation of plasmallema H+-ATPase as a possible metabolic marker for bioactivity of humic acids

Contextual and individual assessment of dental pain period prevalence in adolescents: a multilevel approach

<p>Abstract</p> <p>Background</p> <p>Despite evidence that health and disease occur in social contexts, the vast majority of studies addressing dental pain exclusively assessed information gathered at individual level.</p> <p>Objectives</p> <p>To assess the association between dental pain and contextual and individual characteristics in Brazilian adolescents. In addition, we aimed to test whether contextual Human Development Index is independently associated with dental pain after adjusting for individual level variables of socio-demographics and dental characteristics.</p> <p>Methods</p> <p>The study used data from an oral health survey carried out in São Paulo, Brazil, which included dental pain, dental exams, individual socioeconomic and demographic conditions, and Human Development Index at area level of 4,249 12-year-old and 1,566 15-year-old schoolchildren. The Poisson multilevel analysis was performed.</p> <p>Results</p> <p>Dental pain was found among 25.6% (95%CI = 24.5-26.7) of the adolescents and was 33% less prevalent among those living in more developed areas of the city than among those living in less developed areas. Girls, blacks, those whose parents earn low income and have low schooling, those studying at public schools, and those with dental treatment needs presented higher dental-pain prevalence than their counterparts. Area HDI remained associated with dental pain after adjusting for individual level variables of socio demographic and dental characteristics.</p> <p>Conclusions</p> <p>Girls, students whose parents have low schooling, those with low <it>per capita </it>income, those classified as having black skin color and those with dental treatment needs had higher dental pain prevalence than their counterparts. Students from areas with low Human Development Index had higher prevalence of dental pain than those from the more developed areas regardless of individual characteristics.</p