cometadata/datacite-titles-descriptions-related-identifiers huggingface dataset:
DOI: 10.6084/m9.figshare.9276686.v1
title: Standard proposal of nonconformities applied to inspection of water supply systems by regulatory agencies

description: ABSTRACT This study proposes a standardization of nonconformities applied to direct inspection of water supply systems using legal instruments of sanitation sector and national regulatory agencies’ experience. From the analysis of checklist and normative resolutions available in three regulatory agencies websites - ARCE, ARSI and ARES-PCJ - and of regulatory provisions related to sanitation, a list of items to check supply systems in direct inspection was made. The list includes all system units, from the water catchment areas to distribution network, besides the aspects of water quality. The items discussed were classified as: non-conformities; subject to the agency’s recommendation and; for informational purposes only. The final document provides a list of 179 items for water supply systems’ inspection, being 80 nonconformities, 56 items subject to the agency’s recommendation and 43 items for information purposes only. This proposal is notable for the perspective of improvement supervisory tools and regulatory activity, since one of the regulation’s objectives is to establish standards and norms for the adequate provision of services and customer satisfaction. In addition, the standardization of nonconformities allows for a better comparison between water supply systems from the weaknesses identified by the inspections to enable performance evaluation of service providers and encourage continuous improvement of public services.
DOI: 10.6084/m9.figshare.9276665
title: Links and Gaps between Theoretical Knowledge and Perceptual Practical Knowledge of a Future Teacher When Teaching Algebraic Expressions Multiplication

description: Abstract Prospective mathematics teachers require an integrated education to respond to the school system demands, so that they are able to explicitly link the knowledge acquired in their training with the practice-based experiences. The purpose of this article is to investigate the links and gaps between the theoretical knowledge and the perceptual practical knowledge of a prospective teacher who participates in a Lesson Study experience in a university course, through the lesson plan, class observation and interviews. The results show situations associated with these links and gaps between the knowledge of a prospective teacher that emerge in the teaching experience of algebraic expressions multiplication, and how these influence the management understanding and learning opportunities for their students.
DOI: 10.6084/m9.figshare.9276668
title: Comparison of three PET methods to assess peritoneal membrane transport

description: The peritoneal equilibration test (PET) is the most widespread method for assessing water and solute transport across the peritoneal membrane. This study compared three methods: traditional PET (t-PET), mini-PET, and modified PET (mod-PET). Non-diabetic adults (n=21) who had been on peritoneal dialysis (PD) for at least three months underwent t-PET (glucose 2.5%-4 h), mini-PET (glucose 3.86%-1 h), and mod-PET (glucose 3.86%-4 h) to determine dialysate-to-plasma concentration ratio (D/P) for creatinine and dialysate-to-baseline dialysate concentration ratio (D/D0) for glucose. Agreement between methods regarding D/P creatinine and D/D0 glucose was assessed using analysis of variance (ANOVA), Pearson's correlation coefficient, and Bland-Altman analysis. D/P creatinine differed between t-PET and mini-PET (P&lt;0.001) and between mod-PET and mini-PET (P&lt;0.01) but not between t-PET and mod-PET (P=0.746). The correlation of D/P creatinine with t-PET vs mod-PET was significant (r=0.387, P=0.009) but not that of t-PET vs mini-PET (r=0.088, P=0.241). Estimated bias was −0.029 (P=0.201) between t-PET and mod-PET, and 0.206 (P&lt;0.001) between t-PET and mini-PET. D/D0 glucose differed between t-PET and mod-PET (P=0.003) and between mod-PET and mini-PET (P=0.002) but not between t-PET and mini-PET (P=0.885). The correlations of D/D0 glucose in t-PET vs mod-PET (r=−0.017, P=0.421) or t-PET vs mini-PET (r=0.152, P=0.609) were not significant. Estimated bias was 0.122 (P=0.026) between t-PET and mod-PET, and 0.122 (P=0.026) between t-PET and mini-PET. The significant correlation of D/P creatinine between t-PET and mod-PET suggested that the latter is a good alternative to t-PET. There was no such correlation between t-PET and mini-PET.
DOI: 10.6084/m9.figshare.9276671
title: Automated immature granulocyte count in patients of the intensive care unit with suspected infection

description: ABSTRACT Introduction: Diagnosing infections in intensive care unit (ICU) patients is vital to provide appropriate therapies. Hematological analyzers perform automated immature granulocyte counts (IG) quickly and with no additional cost when compared to traditional microbiological cultures. Elevated IG is directly associated with infections and inflammation. Objectives: Evaluate IG as infection marker in adult inpatients at the ICU-Complexo Hospital de Clínicas da Universidade Federal do Paraná (CHC-UFPR), compared to cultures of biological materials (gold standard). Material And Methods: Samples of 200 adult inpatients at CHC-UFPR ICU with suspected infection were used. Absolute (IG#) and relative (IG%) counts were performed on the Sysmex XN-3000. Cultures and blood cultures were performed either manually or on Bactec FX. Diagnostic accuracy and agreement for IG# and IG% were evaluated. Results: The reference intervals (RI) obtained for IG# and IG% were 0.06 × 103/µl and 0.6%, respectively, with sensitivity for both of 74.4% and specificity of 25.3% for IG#, and 26.6% for IG%. The receiver operating characteristic (ROC) curve showed cut-off value of 0.33 × 103/µl for IG#, sensitivity of 28%, specificity of 82.3%, and area under the curve (AUC) of 0.521. For IG%, cut-off value was 1.35%, sensitivity 44.6%, specificity 64.6%, and AUC 0.532. CV &lt; 3% increased specificity to 88%. Conclusion: RI of IG% and IG# showed high sensitivity and are useful in screening for infection in ICU patients. The CVs demonstrated by the ROC curves showed high specificity and are helpful on the exclusion of sepsis diagnosis in ICU patients. IG was shown to be useful for screening and confirmation of infection in ICU patients.
DOI: 10.6084/m9.figshare.9276674
title: Seroprevalence of Trypanosoma cruzi infection among blood donors in the state of Bahia, Brazil

description: Abstract INTRODUCTION: Chagas disease (CD) affects 5.7-7.0 million individuals worldwide, and its prevalence reached 25.1% in the state of Bahia, Brazil. There is an association between the prevalence of CD, the socioeconomic status of the population, and the risk of re-emergence due to non-vectorial transmission, such as blood transfusion. This study determined the seroprevalence of T. cruzi infection among blood donors in the state of Bahia, located in northeastern Brazil, and their epidemiological profile during a 10-year period. METHODS: We performed a descriptive cross-sectional study involving a database review. Data were collected from patients with non-negative results for T. cruzi infection during a 10-year period. RESULTS: A total of 3,084 (0.62%) samples were non-negative for T. cruzi infection in an initial serological screening, and 810 (0.16%) samples were non-negative in the second screening. The correlation between infection and age (30 years or older) and between infection and lower educational level (12 years or less) in the first and second screening was statistically significant. The seroprevalence of T. cruzi infection was higher in men in the first screening. In addition, 99.52% of the municipalities of Bahia had at least one case of CD. Livramento de Nossa Senhora and Salvador presented the highest disease prevalence and recurrence, respectively. CONCLUSIONS: The seroprevalence of T. cruzi infection in these populations was lower than that found in other studies in Brazil but was comparatively higher in densely-populated areas. The demographic characteristics of our population agreed with previous studies.
DOI: 10.6084/m9.figshare.9276665.v1
title: Links and Gaps between Theoretical Knowledge and Perceptual Practical Knowledge of a Future Teacher When Teaching Algebraic Expressions Multiplication

description: Abstract Prospective mathematics teachers require an integrated education to respond to the school system demands, so that they are able to explicitly link the knowledge acquired in their training with the practice-based experiences. The purpose of this article is to investigate the links and gaps between the theoretical knowledge and the perceptual practical knowledge of a prospective teacher who participates in a Lesson Study experience in a university course, through the lesson plan, class observation and interviews. The results show situations associated with these links and gaps between the knowledge of a prospective teacher that emerge in the teaching experience of algebraic expressions multiplication, and how these influence the management understanding and learning opportunities for their students.
DOI: 10.6084/m9.figshare.9276668.v1
title: Comparison of three PET methods to assess peritoneal membrane transport

description: The peritoneal equilibration test (PET) is the most widespread method for assessing water and solute transport across the peritoneal membrane. This study compared three methods: traditional PET (t-PET), mini-PET, and modified PET (mod-PET). Non-diabetic adults (n=21) who had been on peritoneal dialysis (PD) for at least three months underwent t-PET (glucose 2.5%-4 h), mini-PET (glucose 3.86%-1 h), and mod-PET (glucose 3.86%-4 h) to determine dialysate-to-plasma concentration ratio (D/P) for creatinine and dialysate-to-baseline dialysate concentration ratio (D/D0) for glucose. Agreement between methods regarding D/P creatinine and D/D0 glucose was assessed using analysis of variance (ANOVA), Pearson's correlation coefficient, and Bland-Altman analysis. D/P creatinine differed between t-PET and mini-PET (P&lt;0.001) and between mod-PET and mini-PET (P&lt;0.01) but not between t-PET and mod-PET (P=0.746). The correlation of D/P creatinine with t-PET vs mod-PET was significant (r=0.387, P=0.009) but not that of t-PET vs mini-PET (r=0.088, P=0.241). Estimated bias was −0.029 (P=0.201) between t-PET and mod-PET, and 0.206 (P&lt;0.001) between t-PET and mini-PET. D/D0 glucose differed between t-PET and mod-PET (P=0.003) and between mod-PET and mini-PET (P=0.002) but not between t-PET and mini-PET (P=0.885). The correlations of D/D0 glucose in t-PET vs mod-PET (r=−0.017, P=0.421) or t-PET vs mini-PET (r=0.152, P=0.609) were not significant. Estimated bias was 0.122 (P=0.026) between t-PET and mod-PET, and 0.122 (P=0.026) between t-PET and mini-PET. The significant correlation of D/P creatinine between t-PET and mod-PET suggested that the latter is a good alternative to t-PET. There was no such correlation between t-PET and mini-PET.
DOI: 10.6084/m9.figshare.9276671.v1
title: Automated immature granulocyte count in patients of the intensive care unit with suspected infection

description: ABSTRACT Introduction: Diagnosing infections in intensive care unit (ICU) patients is vital to provide appropriate therapies. Hematological analyzers perform automated immature granulocyte counts (IG) quickly and with no additional cost when compared to traditional microbiological cultures. Elevated IG is directly associated with infections and inflammation. Objectives: Evaluate IG as infection marker in adult inpatients at the ICU-Complexo Hospital de Clínicas da Universidade Federal do Paraná (CHC-UFPR), compared to cultures of biological materials (gold standard). Material And Methods: Samples of 200 adult inpatients at CHC-UFPR ICU with suspected infection were used. Absolute (IG#) and relative (IG%) counts were performed on the Sysmex XN-3000. Cultures and blood cultures were performed either manually or on Bactec FX. Diagnostic accuracy and agreement for IG# and IG% were evaluated. Results: The reference intervals (RI) obtained for IG# and IG% were 0.06 × 103/µl and 0.6%, respectively, with sensitivity for both of 74.4% and specificity of 25.3% for IG#, and 26.6% for IG%. The receiver operating characteristic (ROC) curve showed cut-off value of 0.33 × 103/µl for IG#, sensitivity of 28%, specificity of 82.3%, and area under the curve (AUC) of 0.521. For IG%, cut-off value was 1.35%, sensitivity 44.6%, specificity 64.6%, and AUC 0.532. CV &lt; 3% increased specificity to 88%. Conclusion: RI of IG% and IG# showed high sensitivity and are useful in screening for infection in ICU patients. The CVs demonstrated by the ROC curves showed high specificity and are helpful on the exclusion of sepsis diagnosis in ICU patients. IG was shown to be useful for screening and confirmation of infection in ICU patients.
DOI: 10.6084/m9.figshare.9276674.v1
title: Seroprevalence of Trypanosoma cruzi infection among blood donors in the state of Bahia, Brazil

description: Abstract INTRODUCTION: Chagas disease (CD) affects 5.7-7.0 million individuals worldwide, and its prevalence reached 25.1% in the state of Bahia, Brazil. There is an association between the prevalence of CD, the socioeconomic status of the population, and the risk of re-emergence due to non-vectorial transmission, such as blood transfusion. This study determined the seroprevalence of T. cruzi infection among blood donors in the state of Bahia, located in northeastern Brazil, and their epidemiological profile during a 10-year period. METHODS: We performed a descriptive cross-sectional study involving a database review. Data were collected from patients with non-negative results for T. cruzi infection during a 10-year period. RESULTS: A total of 3,084 (0.62%) samples were non-negative for T. cruzi infection in an initial serological screening, and 810 (0.16%) samples were non-negative in the second screening. The correlation between infection and age (30 years or older) and between infection and lower educational level (12 years or less) in the first and second screening was statistically significant. The seroprevalence of T. cruzi infection was higher in men in the first screening. In addition, 99.52% of the municipalities of Bahia had at least one case of CD. Livramento de Nossa Senhora and Salvador presented the highest disease prevalence and recurrence, respectively. CONCLUSIONS: The seroprevalence of T. cruzi infection in these populations was lower than that found in other studies in Brazil but was comparatively higher in densely-populated areas. The demographic characteristics of our population agreed with previous studies.
DOI: 10.6084/m9.figshare.9276662
title: Evaluation of the understanding of mechanical waves using a multiple-choice test in Spanish

description: Abstract The “Mechanical Waves Conceptual Survey (MWCS)”, is the most important multiple-choice test designed to date to evaluate the understanding of university students in four themes of mechanical waves: propagation, superposition, reflection, and standing waves. In this study, we present a significant modification of this test in Spanish. We administered the test to 418 students who finished a course that covers the topics tested by the survey in a private Mexican university. The four objectives of this article are: (1) to present the test in Spanish and its redesign process, (2) to show that it is a reliable evaluation instrument with adequate discriminatory power, (3) to present a detailed analysis of students' understanding on the concepts evaluated in the test, and (4) to establish specific recommendations, based on the previous analyzes, for the instruction of these concepts. In this way, this article offers a comprehensive analysis of understanding difficulties, research-based recommendations and the test available in the appendix that can be used by researchers in the field of physics education, and by teachers who teach the subject of mechanical waves in physics courses in Spanish-speaking countries.
DOI: 10.6084/m9.figshare.9276662.v1
title: Evaluation of the understanding of mechanical waves using a multiple-choice test in Spanish

description: Abstract The “Mechanical Waves Conceptual Survey (MWCS)”, is the most important multiple-choice test designed to date to evaluate the understanding of university students in four themes of mechanical waves: propagation, superposition, reflection, and standing waves. In this study, we present a significant modification of this test in Spanish. We administered the test to 418 students who finished a course that covers the topics tested by the survey in a private Mexican university. The four objectives of this article are: (1) to present the test in Spanish and its redesign process, (2) to show that it is a reliable evaluation instrument with adequate discriminatory power, (3) to present a detailed analysis of students' understanding on the concepts evaluated in the test, and (4) to establish specific recommendations, based on the previous analyzes, for the instruction of these concepts. In this way, this article offers a comprehensive analysis of understanding difficulties, research-based recommendations and the test available in the appendix that can be used by researchers in the field of physics education, and by teachers who teach the subject of mechanical waves in physics courses in Spanish-speaking countries.
DOI: 10.6084/m9.figshare.9276644
title: The Problem in Mathematical Modeling: determination and transformation

description: Abstract In this paper, we discuss the problem concept in Mathematical Modeling in the context of Mathematics Education. It is the result of a research guided by a qualitative methodology, where we set a course involving the construction of electronic games. As the main theoretical reference, we bring Deleuze's problem vision, that is not associated with doubt or question, but with a non-actual state. Data analysis combined with a theoretical and philosophical depth, led to the construction of a problem concept aligned with the mathematical modeling activities we developed. As a result, we show that the way the problem is determined conditions the developed situations and, therefore, the process of Mathematical Modeling.
DOI: 10.6084/m9.figshare.9276644.v1
title: The Problem in Mathematical Modeling: determination and transformation

description: Abstract In this paper, we discuss the problem concept in Mathematical Modeling in the context of Mathematics Education. It is the result of a research guided by a qualitative methodology, where we set a course involving the construction of electronic games. As the main theoretical reference, we bring Deleuze's problem vision, that is not associated with doubt or question, but with a non-actual state. Data analysis combined with a theoretical and philosophical depth, led to the construction of a problem concept aligned with the mathematical modeling activities we developed. As a result, we show that the way the problem is determined conditions the developed situations and, therefore, the process of Mathematical Modeling.
DOI: 10.6084/m9.figshare.9276635
title: Characterization of biosolids and potential use in the production of seedlings of Schinus terebinthifolia Raddi

description: ABSTRACT This study aimed to technically, chemically and biologically characterize the biosolids from the Sewage Treatment Plant (STP) of Alegria, Rio de Janeiro, Brazil, and infer about their aptitude as a substrate component for the seedlings production of Anadenanthera macrocarpa (Benth.) Brenan. Significant samples of biosolid were collected and submitted to chemical and biological analysis in a specialized laboratory, according to the specifications of the current Brazilian law (CONAMA Resolution nº 375/2006). In the forest nursery, four different formulations of substrate, composed by different volumetric proportions of commercial substrate (CS) and biosolids (BIO) were tested, consisting of the following treatments: T1 (100% SC + 0% BIO); T2: (75% SC + 25% BIO); T3: (50% SC + 50% BIO); e T4: (0% SC + 100% BIO). The experimental design was CRD, each of the four treatments having four replications of eighteen seedlings. The biosolid met the legal specifications concerning its composition. Fifty days after sowing, shoot height and stem diameter were measured. It was observed, for both characteristics, that seedling growth was directly proportional to the concentration of sewage sludge in the substrate. Finally, the Alegria ETE’s biosolid attends the legislation and shows a technically viable alternative for the production of angico vermelho seedlings.
DOI: 10.6084/m9.figshare.9276629
title: Test-retest reliability of the Mini-Mental State Examination in an elderly population attended in a primary health care setting

description: Abstract Introduction: Geriatric assessment has been done worldwide with the aid of functional and cognitive scales. In Brazil, the psychometric features of the Mini-Mental State Examination (MMSE) have not been properly assessed in elderly outpatients. Objectives: To determine the test-retest reliability of the Portuguese version of the MMSE in elderly people. Methods: A sample of 306 people (&gt;=65 years) who have attended a primary health care setting was selected. They were submitted to a comprehensive geriatric assessment with several functional tools including the Mini-Mental State Examination, and 105 individuals were tested again one week after the initial assessment, by the same examiners. The reliability was assessed by Cohen's kappa and intraclass correlation coefficients. The internal scale consistency was assessed by Crombach's alpha coefficient. Results: There were no significant socio-economic differences between the reliability sample and the study population. The kappa coefficient was considered “substantial” (0.79 at cutoff point = 23/24). The ICC was 0.80 and the Cronbach's alpha was 0.71. Conclusion: When assessed by kappa and ICC coefficients the Portuguese version of the MMSE was considered reliable in a test-retest model of reliability study in an elderly population attended in a primary care setting.
DOI: 10.6084/m9.figshare.9276629.v1
title: Test-retest reliability of the Mini-Mental State Examination in an elderly population attended in a primary health care setting

description: Abstract Introduction: Geriatric assessment has been done worldwide with the aid of functional and cognitive scales. In Brazil, the psychometric features of the Mini-Mental State Examination (MMSE) have not been properly assessed in elderly outpatients. Objectives: To determine the test-retest reliability of the Portuguese version of the MMSE in elderly people. Methods: A sample of 306 people (&gt;=65 years) who have attended a primary health care setting was selected. They were submitted to a comprehensive geriatric assessment with several functional tools including the Mini-Mental State Examination, and 105 individuals were tested again one week after the initial assessment, by the same examiners. The reliability was assessed by Cohen's kappa and intraclass correlation coefficients. The internal scale consistency was assessed by Crombach's alpha coefficient. Results: There were no significant socio-economic differences between the reliability sample and the study population. The kappa coefficient was considered “substantial” (0.79 at cutoff point = 23/24). The ICC was 0.80 and the Cronbach's alpha was 0.71. Conclusion: When assessed by kappa and ICC coefficients the Portuguese version of the MMSE was considered reliable in a test-retest model of reliability study in an elderly population attended in a primary care setting.