Parana State Research Articles

INFORMATION TECHNOLOGY IN THE PECAN NUT PRODUCTION: CASE IN PARANA STATE, BRAZIL

The aim is to assess the insertion of information technology in properties of pecan nut producers of the Western Region in Parana State, in Brazil. A questionnaire was applied to 21 pecan producers in the West Region of Paraná. Significant difference was tested using Kruskal Wallis in relation to the age of the farmer, working time, property size and use of information technology (IT). In the PDCA analysis, suggestions for continuous improvement were presented. In the findings, differences in the use of IT in properties of pecan nut producers are statistically significant in variables of property size and working time. The size, working time, number of computers, IT service outsourcing, and quality of data access are significantly and positively correlated. The practical implication is to use the implantation of IT in companies, as a methodological lens to evaluate the scenario of pecan producers of the Western Region in Parana State.

Technical-economic viability of tubular biodigester and photovoltaic energy for rural property

Dairy cattle farming is an activity of great economic importance for Brazil, and the state of Parana has a relevant participation in national milk production. In order to reduce production costs, the generation of the electric energy in the distributed generation model appears as an alternative for the milk cattle farmer. Therefore, there are two possible options: The use of the property's animal waste for turning biomass into a biogas source, or the installation of photovoltaic panels. The objective of this work was to evaluate and compare through the use of economic engineering tools such as NPVand Payback, the feasibility of implementing these energy sources in a milk-producing property. The results demonstrated the economic viability of both forms of energy generation for a 25-year project horizon, considering a minimum attractiveness rate of 6,5%. Among the scenarios evaluated, the most financially interesting alternatives were those in which the cost of implementing the system was financed, since the considered interest rate of 3% per year is lower than the average inflation of 5,92% per year on the investment balances.

The Ajuricaba Basin Creek chemical signature of water resources: Geological sources and anthropogenic contributions

The Ajuricaba Basin Creek is located west of the Parana State, it is part of the Parana 3 Hydrographic Basin and it is located at southwest of the Marechal Candido Rondon county. Its area of around 18 km2 is manly used for agricultural purposes. The basin is part of the Serra Geral Aquifer System (SGAS), which comprises basic volcanic rocks of the Serra Geral Group. The main objectives of this study are the characterization of the hydrogeochemical environments and the understanding of the dissolved elements sources, both geological and human, in order to create a water circulation model of the basin. Two field campaigns, in August and November 2019, were done to collect water samples from surface waters (SW), phreatic aquifer (PA) and fractured aquifer (FA). During the 2019 field campaigns, the temperature, pH, total dissolved solids (TDS) and electrical conductivity (EC) were measured on site. Physicochemical parameters (SiO2, HCO3−, CO3−2, Cl−, F−, PO4−3, SO4−2, NO3−, NO2−, Ca+2, Mg+2, Na+, K+, Fe total, Mn+2, Nb, S, V, Zn, Al, Sr, Ba, P, Ti) of the collected samples were analysed. Preexisting data from December 2010 was also used to observe historical changes in water quality through time. Based on this data, statistical (univariate and correlation) and hydrochemical analysis were conducted in order to characterize the hydrogeochemical environments and surface and groundwater flows in the basin. Historical analysis revealed that SW and PA samples have the most significant impacts on water quality with double the median concentration of NO3− and three to nine times the concentration of Cl−. Hydrochemical analysis showed that SW have higher concentrations of HCO3−, Cl−, NO3−, Ca+2, Mg+2, Al, Sr, Ba and Fe, high TDS and neutral to acid pH. PA has the lowest TDS and acid pH and its main ions are HCO3−, NO3−, Ca+2 and Mg+2. In addition, FA was divided in: FA (Ca+2) with HCO3−, Ca+2 and Mg+2 as main ions, neutral pH and low TDS and FA (Na+) with CO3−2, HCO3−, SO4−2, Na+, V, Nb and P as main ions, basic pH and high TDS. SW has a similar pattern to PA and FA (Ca+2) indicating that the rivers are discharge zones for both aquifers. FA (Ca+2) has a similar hydrochemical signature to SGAS, confirming it origins. In opposition, the FA (Na+) aquifer hydrochemical signature differs from the SGAS and, in fact, is more similar to the one of the confined Guarani Aquifer System (GAS), suggesting a higher residence time. Fa (Na+) waters have higher TDS and basic pH, indicating a higher residence time and depth associated with the ascension of even deeper flows from GAS towards the basin. In addition to the hydrochemical model, this research also highlights the potential of the multielement-hydrochemistry to understand the relations between surface and groundwater resources contributing for the management of water resources in watersheds.

Trend change estimation for interrupted time series with heteroscedastic and autocorrelated errors: application in syphilis occurrences in Brazil

The impact evaluation of exogenous policies over time is of great importance in several areas. Unfortunately, an adequate time-series analysis has not always been taken into account in the literature, mainly in health problems. When regression models are used in the known interrupted time-series approach, the required error assumptions are in general neglected. Specifically, usual linear segmented regression (lmseg) models are not adequate when the errors have nonconstant variance and serial correlation. To instigate the correct use of intervention analysis, we present a simple approach extending a linear model with log-linear variance (lmvar) to estimate linear trend changes under heteroscedastic errors (lmsegvar). When the errors are autocorrelated, the Cochrane-Orcutt (CO) modification is implemented to correct the estimated parameters. As an application, we estimate the impact in temporal trend of the Brazilian Rede Mãe Paranaense (RMP) program in gestational syphilis occurrences in the state of Parana, Brazil. The comparison of the proposed linear segmented model (lmsegvar+CO) modeling both the average and variance, with the usual segmented linear model (lmseg), where just the average is modeled, shows the importance of taking heteroscedasticity and autocorrelation into account.

Estratégias e práticas de gestão, orientadas à sustentabilidade organizacional: um estudo em uma cooperativa de crédito no estado do Paraná

O objetivo deste artigo é analisar as relações entre as ações estratégicas de uma cooperativa de crédito rural e as práticas de gestão nas dimensões econômicas, sociais e ambientais da sustentabilidade, por meio do uso dos critérios do Triple Bottom Line (TBL) e de conceitos e práticas relacionados ao cooperativismo de crédito. Quanto à metodologia, esta pesquisa caracteriza-se como estudo de caso único, com natureza aplicada com abordagem qualitativa com técnicas de análise quantitativa. Os resultados evidenciam que a cooperativa analisada do interior do estado do Paraná, não possui equilíbrio nos pilares econômico, social e ambiental para que se tenha vantagem competitiva para com a sustentabilidade organizacional.

Thermal environment in an agroforestry system of coffee and rubber tree in Southern Brazil

Climate change poses a significant risk to the production of Coffea arabica in currently cultivated areas, as the species has low tolerance to extreme temperature. Agroforestry systems are an alternative to contribute to the adaptation of this species and to continue the production in the regions where it is currently cultivated. This study assesses the thermal environment of an agroforestry system (AFS) composed of coffee and rubber trees (Hevea brasiliensis) planted in double rows with different spacings in Londrina, Parana state, Southern Brazil. Data of global solar radiation and temperature of air, leaves, and soil were continuously collected from 2015 to 2018. The findings reveal that the presence of rubber trees affected the microclimate by reducing extreme temperatures and decreasing mean temperatures. In the experimental conditions of limited size of the plots, leaf and soil temperatures represented more realistically the modifications in the microclimate induced by the rubber trees. The study concludes that this system can effectively contribute to the adaptation of coffee plantations in a warmer environment, in order to continue producing in traditional regions in Brazil.

An Analysis of Non-stationary Drought Conditions in Parana State Based on Climate Change Scenarios

An Analysis of Non-stationary Drought Conditions in Parana State Based on Climate Change Scenarios

Comparison Between Vegetation Index Obtained by Active and Passive Proximal Sensors

Proximal sensors have been used to characterize the crop biophysical properties by reflectance values and/or using Vegetation Indices (IV). Our goal with this work is to compare NDVI (Normalized Difference Vegetation Index) spectra-temporal profiles obtained by active (GreenSeeker 505 Handheld) and passive (FieldSpec4 model Standard-Res) proximal sensors to monitor soybeans and beans. It was monitored agricultural fields with soybeans Nidera 5909RG variety and beans Imperador variety, located in the municipality of Cascavel, Parana state, Brazil. The proximal sensors were used to monitor the crop's conditions on different Days After Sowing (DAS). NDVI from FieldSpec4 (NDVI FS) showed a higher correlation with GreenSeeker NDVI (NDVI GS) in the wavelengths of 649 nm and 771 nm for soybeans (rs = 0.9105) and 646 nm and 792 nm for beans (rs = 0.9382). The inter-calibration of NDVI GS values in function of NDVI FS, considering the entire phenological cycle, resulted in RMSE = 0.0520 and dr = 0.8630 for soybeans and RMSE = 0.0636 and dr = 0.8890 for beans. NDVI values showed saturation during the major vegetative development of the crops, interfering in the inter-calibration process. In general, the NDVI GS and NDVI FS were similar in terms of their spectral-temporal pattern. According to our results, the active sensor could be used to crop monitoring, resulting in a lower cost and less climatic interference.

A MOTIVAÇÃO ESTÉTICA DE PRENOMES

O objetivo deste artigo é categorizar a motivação estética a partir de narrações de designadores que atribuíram um nome ao filho, como também de filhos que foram nomeados com tal motivação. Para o objetivo proposto, foi analisado um banco de dados constituído por 125 entrevistas semiestruturadas com designadores e nomeados com nomes justapostos nascidos entre a década de 1930/1940 e 2010 no munícipio de Marechal Cândido Rondon - PR. Parte-se da ideia de que os antropônimos são escolhidos a partir de crenças, valores e gostos daqueles que nomeiam (VAN LANGEDONCK, 2007).

Acessibilidade no ensino superior: percepções de funcionários com deficiência

This study has the objective to verify the of accessibility conditions in a public institution located in the state of Parana, starting from the perception of employees with disabilities. Seven employees of the respective university, who declares themselves as having disabilities participated in the research. The data was collected using semi structured interviews. The data was discussed, starting from authors who theorize about this theme, or that are based to the Historical – Cultural Theory. The results revealed that, on the perception of the participants, the institution still has many barriers to accessibility, however, the participants believe that the university is trying to eliminate those obstacles, especially the ones related to architectonic, making adaptations and constructions such as: ramps, parking lots, adapted bathrooms, and others. We concluded that there is a need of enhancement of accessibility policy, and an effective careful and continuous evaluation of employees, needs.

Programa Escola da Terra no Paraná: uma referência na política de formação continuada de professores no Paraná

Este texto trata do Programa Escola da Terra, política pública de formação continuada de professores das escolas do campo, vinculado ao Programa Nacional de Educação do Campo, do Ministério da Educação (MEC), apresentando a experiência desenvolvida no estado do Paraná, realizada pelas universidades públicas. Faz uso da pesquisa bibliográfica e da análise documental, dos projetos, publicações e relatórios já desenvolvidos. O trabalho é mediado pela análise de conjuntura, destaca a necessidade da formação continuada de professores, demarca características e princípios do que vem a ser uma Escola da Terra e revela significativos retrocessos nos investimentos públicos do Programa.
 Palavras-chave: escola da terra, formação continuada de professores, extensão universitária.
 
 Escola da Terra Program in Paraná: a reference of university extension in the policy of continuing education of teachers
 ABSTRACT. This text deals with the School to Land Programme, a public policy for the continuing teachers education in rural schools, linked to the National Program of Rural Education, of the Ministry of Education (MEC), presenting the experience developed in the State of Parana since the university extension carried out by public universities. It makes use of bibliographical research and document analysis, from the projects, reports and publication already developed, work mediated by conjuncture analysis. It highlights the need for continuing teachers education, demarcates characteristics and principles of what is an Earth School and reveals significant setbacks in public investments in the program.
 Keywords: school to land programme, continuing teacher education, university extension.
 
 Programa Escuela de la Tierra en Paraná: una referencia en la política de formación permanente de los docentes
 RESUMEN. Este texto trata sobre el Programa Escuela de la Tierra, una política pública para la formación permanente de docentes en escuelas rurales, vinculada al Programa Nacional de Educación Rural, del Ministerio de Educación (MEC), presentando la experiencia desarrollada en el estado de Paraná, llevada por las universidades públicas. Hace uso de investigaciones bibliográficas y análisis documentales, proyectos, publicaciones e informes ya desarrollados. El trabajo mediado por el análisis de coyuntura, destaca la necesidad de formación continua de los docentes, esboza las características y principios de lo que constituye una Escuela da Terra y revela importantes retrocesos en las inversiones públicas en el Programa.
 Palabras clave: escuela de la tierra, formación permanente del profesorado, extensión universitaria.

Fisioterapia em obstetrícia pelos olhos das gestantes: um estudo qualitativo

Abstract Introduction: Physiotherapy in women's health emerged with the aim of promoting and maintaining physical and emotional health from the beginning to the end of pregnancy, through preventive measures against possible injuries that may occur during pregnancy, childbirth and the postpartum. Access to knowledge about obstetric physiotherapy among pregnant women is increasing, which may contribute to a search for trained professionals. Objective: To analyze the perception of pregnant women about obstetric physiotherapy. Methods: This is a qualitative study carried out at the Materno Infantil Center, in Capanema, Parana state (PR), using a semistructured interview. Content analysis used the Bardin method to categorize the thematic axes. Results: Seven pregnant women aged between 18-24 years (57%), 23-32 weeks of gestation (42%), multiparous (71%), with secondary education (42%) and income between 1-3 monthly minimum wages (86 %) were included in the study. It was found that participants’ perception of physiotherapy was inaccurate, because none of the women had accessed this treatment. The women stated that physiotherapists reduce labor pain, but they have no knowledge of how these professionals work in the postpartum. Conclusion: It is concluded that it is necessary to increase information on the contribution of physiotherapists during prenatal care, delivery and postpartum.

Industrial profile of the Parana State exportation and the deindustrialization hipotesis

Industrial profile of the Parana State exportation and the deindustrialization hipotesis

Performance of a wheat–soybean cropping system as affected by applying phosphogypsum in combination with urea

High-intensity crop-production seeking for higher grain yields increases nutrient demand by plants. A field experiment was performed in Parana State, Brazil, on a clayey Haplic Cambisol to evaluate the effects of phosphogypsum and nitrogen (N) amendments on a wheat–soybean rotation. Phosphogypsum was surface-applied to plots at 0, 2, 4, and 6 Mg ha−1 before wheat sowing and two rates of urea at 40 and 80 kg N ha−1 were applied to subplots in top dressing at tillering of wheat. Phosphogypsum improved the yield performance of wheat–soybean rotation. Wheat grain yield increased by 20% due to phosphogypsum application only when a higher rate of urea at 80 kg N ha−1 was applied in top dressing, indicating an influence of the interaction between N and sulfur (S). Soybean grain yield increased by 16% with phosphogypsum application, regardless of the urea-N rates to the previous wheat crop. Higher grain yields of wheat and soybean were related to higher levels of Ca2+ and S in the soil profile (0–0.40 m). Although there was a slight involvement of phosphogypsum in reducing aluminum Al3+ toxicity in the subsoil due to a reduction in Al3+ saturation caused by increased Ca2+ concentration, the improvements imparted by the use of phosphogypsum resulted mainly from increased S concentration. The results showed that the critical levels of SO4–S by 0.01 mol L−1 Ca(H2PO4)2 were 14 and 27 mg dm−3 at 0–0.20 m and 0–0.40 m depths, respectively, for the wheat–soybean cropping system.

First study of Brucella ovis antibodies in purebred sheep flocks in the State of Parana, Brazil

ABSTRACT Brucella ovis, a non-zoonotic species, is the etiological agent of ovine brucellosis, an infectious disease of clinical or subclinical occurrence in sheep flocks. Until then, there is no serological study of anti-Brucella ovis antibodies in purebred sheep herds. This study aimed to determine the presence of anti-Brucella ovis antibodies in purebred sheep flocks with breeding purposes from Parana State. Blood samples from 728 animals, of which 563 were females and 165 males, between 8 and 56 months of age from the six major sheep producing mesoregions of Parana, were submitted to detection of anti-Brucella ovis antibodies by the Agar Gel Immunodiffusion technique using an antigen from the bacteria Brucella ovis (Reo 198). The results indicate the presence of this disease in purebred sheep from Parana State in a low occurrence of 0.27% (2/728). The only two positive animals were rams, Santa Inês breed, from the same flock in the East Center region of Parana, without clinical disease. In conclusion, Brucella ovis is present in purebred sheep in Parana State, Brazil, and this low occurrence may have occurred due to rigorous breeding systems that may contribute to reduce the transmission of this disease.

Eco-innovation assessment of biodigesters technology: an application in cassava processing industries in the south of Brazil, Parana state.

Eco-innovations are innovations capable of helping to reduce the environmental impacts of production processes. In this sense, the adoption of models that assess comprehensively, in an integrated manner and in different perspectives, the general performance of these innovations allows managers to guide their decisions. The object of this research is the use of an eco-innovation in the production processes of cassava, where the waste generated is treated by biodigesters. These cassava processing industries are located in southern Brazil, Paraná State, comprising a multiple case study. A literature review was also carried out to propose a set of indicators capable of assessing the overall impact of this eco-innovation in eight lines of action: (1) environmental, (2) social, (3) economic, (4) human resource training, (5) institutional development, (6) introduction of innovation, (7) unwanted occurrences, and (8) characteristics of environmental management. To compile and process the data, the computerized model INOVA-tec System was used. The objective was to employ the INOVA-tec System model as an instrument for evaluating eco-innovative processes in leading companies in its segment, looking for evidence to expand its usability to other realities in the agro-industry. The results show that the technology scenario is favorable to its dissemination; however, the low performance of the indicators together makes it underutilized.Graphical

ÉTICA: UM ESTUDO SOBRE FRAUDES E INFRAÇÕES COMETIDAS PELOS CONTADORES DO ESTADO DO PARANÁ NO PERÍODO DE 2016 A 2019

This article aims to analyze the infractions committed by accounting professionals in the state of Parana from 2016 to 2019. The research is classified as qualitative, being exploratory, through interpretation and deepening on the subject and descriptive, seeking to conceptualize and describe ethics and fraud and analyzing about infractions committed by accountants from Parana and punishments imposed. Itis concluded that despite the punishments imposed there is still resistance to those who commit illegal acts, being of great value greater punishments, the u a better imposition of ethics.

IDENTIFYING POTENTIAL REGIONS FOR A PRECIPITATION INDEX INSURANCE PRODUCT IN PARANÁ – BRAZIL: A HIERARCHICAL CLUSTERING APPROACH

In this article the availability and quality of public databases for soybean yields and daily rainfall in the state of Parana in Brazil is assessed in order to verify the feasibility of an index insurance product. The multiple imputation by chained equations (MICE) method is utilized to fill missing values in the rainfall dataset and study the existence of spatial and temporal patterns in the data by means of hierarchical clustering. The results indicate that Parana fulfills data requirements for a scalable weather index insurance with MICE and hierarchical clustering being effective tools in the pre-processing of precipitation data.

Depression, anxiety and stress symptoms in Brazilian university students during the COVID-19 pandemic: Predictors and association with life satisfaction, psychological well-being and coping strategies.

BackgroundThe COVID-19 pandemic raises concerns about the mental health of the world population. Protection measures to prevention the disease impacted education and undergraduate students were exposed to additional stressors.ObjectivesAnalyze depression, anxiety and stress symptoms in undergraduates, their respective predictors and the association with satisfaction with life, psychological well-being and coping strategies.MethodsAn online cross-sectional study was conducted from September 14 to October 19, 2020, involving undergraduate students enrolled in 33 courses from 5 public university campuses in the state of Parana, Brazil, using: questionnaire with sociodemographic, academic, health and pandemic effects variables; Depression, Anxiety and Stress Scale-21 (DASS-21); Satisfaction with Life Scale (SWLS); Psychological Well-Being (PWB); BriefCOPE. The convenience sample was composed of 1,224 participants, with 18 years old or older, that completed all research instruments. Spearman correlation and logistic analysis (univariate and multivariate) were applied to the collected data.ResultsMost of the undergraduates presented symptoms of depression (60.5%), anxiety (52.5%) and stress (57.5%). Depression, anxiety and stress presented significant correlations in common: negative with satisfaction with life, all dimensions of psychological well-being, and 3 adaptive copings (active coping, planning, positive reframing); positive with 5 maladaptive copings (behavioral disengagement, denial, self-blame, self-distraction, substance use). In addition, there were 7 common predictors for symptoms of depression, anxiety and stress: female; age 18–24 years old; having a chronic disease; lower scores in 2 dimensions of psychological well-being (positive relations with others, self-acceptance); higher scores in 2 maladaptive copings (self-blame, substance use).ConclusionsThe data indicate a high prevalence of symptoms of depression, anxiety and stress, and suggest that higher scores of satisfaction with life, psychological well-being dimensions and adaptive copings may present protective effects in undergraduates during a pandemic crisis.

First report of injuries associated with triclopyr herbicide drift in grapevines

In the southern region of Brazil, close proximity of vineyards to soybean areas is common, and glyphosate is used frequently to allow for the control of weeds. However, the continuous use of this chemical has accelerated the process of selection for resistant species such as horseweed (Conyza spp.), thus leading to the search for alternative herbicides such as triclopyr to control this weed. To the best of our knowledge, this is the first report detailing injuries associated with triclopyr drift in grapevines in Brazil, in the Northern region of Parana state, that can result in crop losses that were previously uncharacterized. In this report, the primary symptoms associated with the drift of triclopyr in grapevines are described. Additionally, the major implications of this process regarding vine development along the next crop seasons are explored, and the primary measures to prevent these injuries are discussed.