Professional Satisfaction Of Nurses Working In Operating Room Of A Hospital School

Objective: to characterize in a sociodemographic way the nursing staff of the surgical center; Check the degree of importance assigned to each component of satisfaction: autonomy, interaction, professional status, task requirements, organizational policies, and pay; verify job satisfaction perceived by nurses. Method: exploratory, descriptive, quantitative study, consisting of 9 nurses working in the operating room. The research project was approved by the CEP/HULW, CAAE Nº 24597513.2.0000.5183. Data were collected through questionnaires and then analyzed using descriptive statistics in SPSS 20. Results: We found that the standby component was considered the most important for job satisfaction and Professional Status least important. Conclusion: nurses have a low level of job satisfaction, impacting the performance of its activities. Descriptors: Job Satisfaction. Perioperative Nursing. Quality of Life

Influence of heat treatments on the microstructure and degree of sensitization of base metal and weld of AISI 430 stainless steel

<div><p>ABSTRACT AISI 430 is a non-stabilized ferritic stainless steel grade with carbon content lower than 0.12%.After hot and cold rolling this material is annealed. The slow cooling after soaking at temperatures between 900oC and 1000oC promotes the formation of a high quantity of carbides and nitrides, while the rapid cooling partially suppresses the formation of these precipitates, but introduces martensite in the microstructure. Intergranular martensite can also be produced in the weld metal and in the heat affected zone (HAZ) of welds of non-stabilized ferritic stainless steels. In this work, several heat treatments between 900oC and 1000oC, with different cooling rates, were performed in a commercial sheet of AISI 430 grade. Also, an autogenous welding was produced with GTAW process, and post weld heat treatment at 700°C was carried out. The different microstructures produced were analyzed by optical and scanning electron microscopy (SEM). The degree of sensitization was measured by double loop electrochemical potentiodynamic tests (DL-EPR). The pitting corrosion resistance was evaluated by cyclic polarization tests in 3.5%NaCl solution. Hardness and toughness tests were also performed in selected heat treatment conditions. The results indicate that the slow cooling results in a higher degree of sensitization than observed in the material rapid cooled from the annealing temperature. The ferritic martensitic structure produced by water cooling has higher pitting potential and lower degree of sensitization, but is brittle at room temperature. A subsequent tempering treatment between 600 and 800oC can increase the toughness, but the corrosion resistance may decrease due to carbides precipitation.The heat affected zone of AISI 430 welds contains intergranular martensite, which is brittle and susceptible to corrosion attack. Post weld heat treatment at 700oC decomposed the martensite into ferrite and carbides and improved the corrosion resistance.</p></div

Nondestructive Microstructural Characterization of Superduplex Stainless Steel by Double Loop Electrochemical Polarization Reactivation Portable Test

<div><p>Superduplex stainless steels (SDSS) are frequently employed in the petrochemical industries where is required high mechanical strength, toughness, and corrosion resistance. However, these properties can be affected by deleterious phases formation due thermomechanical processes applied in the field during pipes and vessels construction. This work propose the nondestructive microstructural characterization of deleterious phases precipitated in SDSS isothermally treated in 800 and 850ºC using portable double loop electrochemical polarization reactivation tests (DL-EPR). The results obtained in this nondestructive test are quite close to those obtained by conventional test, and can be correlated with the amount of deleterious phases precipitated. It can be concluded that the microstructural degradation of superduplex stainless steel can be evaluated by portable DL-EPR test with slow sweep rates, using a special cell and a proper electrolyte at room temperature.</p></div

Elementos biológicos na configuração do território do rio Doce Biological elements in the River Doce's territory configuration

No médio rio Doce, entre 1930 e 1960, as terras de floresta foram ocupadas pela agricultura e pecuária. No início as culturas agrícolas encontraram condições favoráveis para se expandir, mas não suficientes para se consolidar, antes de dar lugar à pecuária, como é comum na história da agricultura brasileira. As terras cobertas pela floresta foram tomadas pelo capim-colonião (Panicum maximum Jacq. var. maximum) num ritmo maior que o avanço da atividade humana. A gramínea africana encontrou condições excepcionais para se alastrar, dadas pelo relevo, pelo clima e pelo manejo praticado por agricultores e fazendeiros. As suas características biológicas favoreceram o avanço das pastagens. O capim-colonião não diminui a força dos elementos socioeconômicos, marcados por relações de poder em que o fazendeiro levava nítida vantagem, mas entender sua biologia contribui para a compreensão da configuração do território do rio Doce.<br>At the middle Doce river , between 1930 and 1960, the forest lands had been occupied by agriculture and cattle raising. First, the agricultural cultures had found favorable conditions to enlargement, but not enough for consolidating itself, before giving place to cattle, as it is common in the history of Brazilian agriculture. The lands covered by the forest had been invaded by the capim-colonião (Panicum maximum Jacq. var. maximum) in a bigger rhythm than the advance of the human activity. The African grassy found very good conditions to spreading (the relief, the climate and the practices of the farmers. Its biological characteristics had favored the advance of the grass. The capim-colonião does not diminished the force of the socioeconomics elements, marked for power relations where the farmer took clear advantage, but understand its biological aspects contributes for the understanding of the configuration of the territory of the river Doce

Brazilian Flora 2020: Leveraging the power of a collaborative scientific network

International audienceThe shortage of reliable primary taxonomic data limits the description of biological taxa and the understanding of biodiversity patterns and processes, complicating biogeographical, ecological, and evolutionary studies. This deficit creates a significant taxonomic impediment to biodiversity research and conservation planning. The taxonomic impediment and the biodiversity crisis are widely recognized, highlighting the urgent need for reliable taxonomic data. Over the past decade, numerous countries worldwide have devoted considerable effort to Target 1 of the Global Strategy for Plant Conservation (GSPC), which called for the preparation of a working list of all known plant species by 2010 and an online world Flora by 2020. Brazil is a megadiverse country, home to more of the world's known plant species than any other country. Despite that, Flora Brasiliensis, concluded in 1906, was the last comprehensive treatment of the Brazilian flora. The lack of accurate estimates of the number of species of algae, fungi, and plants occurring in Brazil contributes to the prevailing taxonomic impediment and delays progress towards the GSPC targets. Over the past 12 years, a legion of taxonomists motivated to meet Target 1 of the GSPC, worked together to gather and integrate knowledge on the algal, plant, and fungal diversity of Brazil. Overall, a team of about 980 taxonomists joined efforts in a highly collaborative project that used cybertaxonomy to prepare an updated Flora of Brazil, showing the power of scientific collaboration to reach ambitious goals. This paper presents an overview of the Brazilian Flora 2020 and provides taxonomic and spatial updates on the algae, fungi, and plants found in one of the world's most biodiverse countries. We further identify collection gaps and summarize future goals that extend beyond 2020. Our results show that Brazil is home to 46,975 native species of algae, fungi, and plants, of which 19,669 are endemic to the country. The data compiled to date suggests that the Atlantic Rainforest might be the most diverse Brazilian domain for all plant groups except gymnosperms, which are most diverse in the Amazon. However, scientific knowledge of Brazilian diversity is still unequally distributed, with the Atlantic Rainforest and the Cerrado being the most intensively sampled and studied biomes in the country. In times of “scientific reductionism”, with botanical and mycological sciences suffering pervasive depreciation in recent decades, the first online Flora of Brazil 2020 significantly enhanced the quality and quantity of taxonomic data available for algae, fungi, and plants from Brazil. This project also made all the information freely available online, providing a firm foundation for future research and for the management, conservation, and sustainable use of the Brazilian funga and flora