1,722 research outputs found
Anxiety in Primary Health Care professionals during the COVID-19 pandemic
Fundamentos: O desequilíbrio entre o dever profissional e o medo na COVID-19 causaram instabilidade emocional nos trabalhadores da saúde. Objetivos: Avaliar a ansiedade dos profissionais da Atenção Primária à Saúde (APS) e fatores associados e analisar a percepções, positivas e negativas, da pandemia. Metodologia: Estudo transversaldescritivo-exploratório, quanti-qualitativo, com profissionais da APS, em município do Estado de São Paulo, Brasil, de dezembro/2020 a março/2021. Realizou-se estatística descritiva e aplicou-se, ao nível de 5%, o teste Qui-quadrado. Para o conteúdo textual, efetuou-se a análise léxica pela Classificação Hierárquica Descendente. Principais resultados: Foi identificado que mais de 50% dos participantes apresentaram ansiedade e ela esteve associada aofato de ter contraído COVID-19 (p-valor = 0.0327); à interferência nas atividades diárias (P-valor < 0.0001) e com a profissão (p-valor = 0.0483). Os pontos negativos foram a saúde mental; condições de trabalho; atendimentos e comportamento. Os positivos foram biossegurança, autocuidado e uso de equipamentos de proteção individual. Conclusões: A maioria dos profissionais da APS a presentou ansiedade e esteve associada aos fatores sociodemográficos. A pandemia trouxe pontos positivos e negativos na ótica dos profissionais da APS.Fundaments: The imbalance between professional duty and fear during the in COVID-19 pandemic caused emotional instability in health workers. Objectives: To assess anxiety in Primary Health Care (PHC) professionals and associated factors and analyze the positive and negative perceptions of the pandemic. Methodology: This is a descriptive-exploratory, quantitative and qualitative cross-sectional study, with PHC professionals, in a municipality in the state of São Paulo, Brazil, from December 2020 to March 2021. Descriptive statistics were carried out, and the chi-square test was applied at the 5% level. For textual content, lexical analysis was carried out by Descending Hierarchical Classification. Main results: It was identified that more than 50% of participants had anxiety, and itwas associated with having contracted COVID-19 (p-value = 0.0327), interference with daily activities (p-value < 0.0001) and occupation (p-value < 0.0001) -value = 0.0483). Negative points were mental health, working conditions, service and behavior. Positive points were biosafety, self-care and personal protective equipment use. Conclusions: Most PHC professionals presented anxiety, and it was associated with sociodemographic factors. Thepandemic brought positive and negative points from PHC professionals’ perspective
Perfil de estilo de vida individual de estudiantes de primer año de odontología de la Universidad de Aracatuba, Brasil - 2015
Introduction: Lifestyle is a factor related to the wellbeing of the individual which alters his or her morbidity and mortality. Objective: To analyze the lifestyle of young people who entered the dentistry program in 2015 and its association with demographic factors. Materials and methods: A cross-sectional analytical observational study was conducted with 114 first-year dental students. The data were collected with two instruments: Individual Lifestyle profile (ILP) which evaluated nutrition, physical activity, preventative behavior, social relationship and stress control; and a validated questionnaire that included sociodemographic variables, working condition and the departure from home on the basis of entering higher education. Maximum likelihood statistical tests and U of Mann-Withney were applied, considering a significance α = 0.05. Results: The majority of participants were women with an average age of 20.06 (± 2.65) and 18.96 (± 1.78) in the night and day courses, respectively. 81.57%, left home to enter the university and 7% carried out a paid activity. They presented an undesirable lifestyle profile in relation to nutrition, physical activity and stress control. Nutrition was influenced by the socioeconomic profile (P = 0.014). The consumption of alcohol and tobacco (p = 0.017) and the time dedicated to rest (P = 0.018) were significantly higher in students of in the night program. Conclusion: The lifestyle of young people who entered dentistry was not the desirable one. Living away from parents and the financial dependency of students are factors that affect their lifestyle
Sąmonės apibrėžimų formulavimas metodologiniu realizmo pagrindu
In this paper, the traditional question – what is mind? – is suggested to be treated from the metareflective realist stance from which different determinations of consciousness could be apprehended as always instantiated and dependent on their definitions. Methodological differentiation between what is representational and what is non-representational is expressed as a divergence between particular definitions of consciousness and the ontological X, in this context, acting as a universality of consciousness. The derivation of this position is reached through the investigation of François Laruelle’s non-standard philosophy, Wilfrid Sellars’s critique of the myth of the given and Iain Hamilton Grant’s revisionary study of Schelling’s naturphilosophie.Šiame straipsnyje tradicinis klausimas „kas yra sąmonė?“ yra siūlomas traktuoti iš metareflektyvios realistinės pozicijos, iš kurios skirtingi sąmonės apibrėžimai galėtų būti suvokiami kaip nuolatos instancijuoti ir priklausomi nuo jų determinacijų. Metodologinė diferenciacija tarp to, kas yra reprezentuojama, ir to, kas nėra reprezentuojama, yra išreiškiama kaip skirtumas tarp partikuliarių sąmonės apibrėžimų ir ontologinio X, šiame kontekste atliekančio sąmonės universalumo vaidmenį. Tokia autoriaus pozicija straipsnyje yra grindžiama analizuojant François Laruelle’io nestandartinę filosofiją, Wilfrido Sellarso duotybės mito kritiką ir Iaino Hamiltono Granto revizinės Schellingo naturphilosophie studiją
Plieno plaušu armuotų gelžbetoninių sijų tinkamumo ribinio būvio analizė
In last decades, the use of steel fibre reinforced concrete (SFRC) as a construction material has developed beyond the traditional applications. Despite the notable research advances in the fibre reinforcement technology and the development of guidelines and recommendations for structural design, questions continue to arise regarding the characterization and modelling of SFRC. The definition of the constitutive models of SFRC and the development of methods for the prediction of deformation and cracking of SFRC structural elements either without or with a traditional bar reinforcement have been extensively studied by many researchers, though their adequacy for certain applications still remains an issue. These subjects require further research in order to work towards an accurate and efficient design procedure.
This thesis investigates the deformation and cracking behaviour of SFRC beams with and without steel bars. Special attention is paid for the analysis of residual strength of tensile SFRC – the fundamental material characteristic for analysis of SFRC structures. With the aim of identifying the residual strength responses, an extensive experimental investigation of 48 flexural SFRC elements subjected to three- and four-point loading is executed. A simple technique for prediction of residual strength from standard three-point bending test is proposed. The main advantage of the proposed technique (in comparison with the standard methods) is its capability to calculate residual strength of tensile SFRC at any given loading or deflection.
For prediction of deformation and cracking behaviour of SFRC beams with bar reinforcement a numerical simulation algorithm is developed. Unlike the most of the serviceability techniques that are used specifically either for deformation or crack analysis, the algorithm based on the stress-transfer approach allows to sim-ultaneously model both the deflection and cracking response of SFRC beams with bar reinforcement. In addition to the residual strength, the laws characterising bond-slip and damage zone are the basic constitutive parameters governing the results of analysis. Being mechanically sound, the developed technique can be universally applied to any type of concrete (plain, high strength/performance) and reinforcement (steel, fibre reinforced polymer). To evaluate the adequacy of the developed technique, an experimental program consisting of 11 full scale reinforced concrete beams with varying fibre content was performed. Comparison of numerical and experimental results proved the applicability of the proposed modelling method.
The author have published 14 articles on the topic of the dissertation (5 of them in the journals with an Impact Factor and 3 in the conference proceedings referred by the Clarivate Analytics Web of Science database)
A cross-sectional study on dental surgeons’ immune status against hepatitis B virus in the Public Health System
Hepatitis B is a severe public health problem. The main world health centers have discussed it due to its pandemic proportion, high pathogenicity and infectivity. This study aimed to determine the immunization profile of dental surgeons - against hepatitis B virus (HBV) in the Public Health System (PHS) through the detection of anti-HBsAg antibodies by immunochromatography and associations with dental surgeons’ social and educational profile, factors related to professional knowledge and practices. This is a cross-sectional study on the prevalence of vaccination and immune status to HBV in dentists of Sao Paulo State PHS. Data collection occurred in three stages: questionnaire application, analysis of adhesion to the vaccination protocol and anti-HBsAg tests. Statistical analysis used the Bivariate Analysis and the Binary Logistic Regression. From the total of 219 interviewees, 74.9% reported having received three doses of the vaccine, but 35.6% were not immune to HBV. The dependent variable was associated with years in the public service (years) (OR [Odds Ratio]=1.04; 95% CI 1.00-1.08); knowledge on the subject (OR=6.93; 95% CI 1.39-34.40); incorrect answer concerning the etiological agent of the disease (OR=2.60; 95% CI 1.30-5.22); ignorance on the number of vaccine doses that have been administered (OR=3.43; 95% CI 1.14-10.30); and less than three doses of the vaccine in the immunization schedule (OR=8.76; 95% CI 3.50-21.91). A considerable portion of professionals non-immune to the HBV were found. We concluded that knowledge, years of practice and completion of the vaccination schedule (three doses) affected dental surgeons’ immune status to HBV
Fair and efficient transmission over GBPS dual ring networks
The advances in fiber optics technology provide large bandwidth and enable the support of a wide variety of services. New network architectures have been proposed, such as Metaring and Distributed Queue Dual Bus (DQDB), that try to take advantage of the new capabilities. Because of the very small packet transmission time relative to the feedback time a challenging issue in high speed networks is the efficient and fair share of the channel bandwidth among the competing users. In this thesis we first investigate and compare the performance of the Global and Local Fairness Mechanisms (GFM and LFM, respectively). They have been proposed recently for fair bandwidth allocation in high speed dual ring networks employing destination release. (a slot that has been read by its destination is immediately released and can be used again by other nodes). We show the sensitivity of both mechanisms to various system parameters, such as channel bandwidth and ring latency. We introduce the Dynamic Medium Access Control Mechanism (DMAC) which does not suffer from the limitations of GFM and LFM, introduces fairness in a very effective and efficient way, and is insensitive to the network parameters
Change in identity of Saudis' built environments: the case of Jeddah
Identity is an essential human demand for life. It is with the identity that human beings introduce a sense of meaning into existence. It can be demonstrated through many different human expressions. The built environment, however, is the main medium discussed in this research. Nevertheless the research traces the identity and the impact of its change in both physical and non -physical environments. This is to understand the expression of identity in Jeddah, as a case study that represents the Saudi community and that has been exposed to drastic changes since the 1950s which stretched the gap between the traditional and the modern. The main objective is to construct a means to evaluate the built environment according to how it conveys, interprets, expresses, enhances or confuses Saudi identity.The research follows a quantitative -qualitative approach in investigating the relationship between the identity and the built environment. This is conducted through a theoretical enquiry which addresses a definition of identity and its elements, natural environment, underlying factors and built environment, and an empirical investigation through the case study (Jeddah) which will include a documents review to trace the change and a questionnaire that aims at investigating Saudis' perception of their environment as a medium of presentation for their identity.The study therefore, probes the concept of identity in general, aiming to develop a theoretical understanding towards considering it in architectural and planning practices. On the other hand the research concentrates on Jeddah, to provide feedback for architectural design and planning that accommodates a Saudi identity
Partially Filled Latin Squares
In this thesis, we analyze various types of Latin squares, their solvability and embeddings. We examine the results by M. Hall, P. Hall, Ryser and Evans first, and apply our understandings to develop an algorithm that the determines the minimum possible embedding of an unsolvable Latin square. We also study Latin squares with missing diagonals in detail
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