cometadata/datacite-titles-descriptions-related-identifiers huggingface dataset:
DOI: 10.6084/m9.figshare.11997378.v1
title: No-tillage curly lettuce cultivated under different spacings

description: ABSTRACT The use of appropriate cultural practices is important for the sustainability of the production system. This study aims to evaluate the agronomic performance of lettuce cultivar ‘Mônica’, during two crop cycles, at the Instituto Federal Catarinense, Campus of Concórdia, SC, Brazil. Two experiments were conducted in the field, arranged in randomized block design, in a 3 x 2 factorial scheme, evaluating the effects of three spacings (0.20 × 0.20, 0.25 × 0.25 and 0.30 × 0.30 m), associated with two planting systems (conventional and no-tillage with millet), with four repetitions in the first cycle and five in the second. At 39 and 44 days after transplanting, six plants were harvested in the first and in the second cycles, respectively. Soil temperature, fresh and dry mass of the spontaneous plants, dry mass of roots, plant diameter, number of marketable leaves, fresh and dry mass of the plants were evaluated. Lettuce cultivated under no-tillage at larger spacings resulted in higher yield per plant, but higher yield per area was observed at smaller spacing. No-tillage reduced spontaneous plants and soil temperature in the West of Santa Catarina.
DOI: 10.6084/m9.figshare.11997375.v1
title: Pre-analytical variables evaluation in laboratory tests of patients attended at the Vitória da Conquista Central laboratory, Bahia, Brazil

description: ABSTRACT Introduction: Laboratory tests are intended to provide information necessary to clarify diagnoses or specific situations that cannot be elucidated by other means. Laboratory analyses are subject to several interferences. Even healthy individuals could suffer variations in laboratory tests due to biological factors, which may lead to misinterpretation of the results. Objective: Assess the pre-analytical variables in patients’ laboratory tests at the Vitória da Conquista Central Laboratory, Bahia, Brazil. Material and method: This is a cross-sectional study with a descriptive approach and the use of a questionnaire as a research instrument. Data were collected through individual interviews, carried out at the laboratory. Results: The sample consisted of 425 patients, with female predominance (76.5%). Regarding patient instructions for laboratory tests, 94.6% had not been given any previous guidance, and 68.5% used some kind of medication, which could produce alterations in the exams. The use of the antihypertensive agents captopril, enalapril, hydrochlorothiazide or propranolol was associated with increased serum urea [odds ratio (OR) = 7.2, confidence interval (CI) = 95%, 1.87-27.58; p = 0.002], and smoking was associated with increased red blood cells count (OR = 3.7, CI = 95%, 0.86-15.75; p = 0.02). Conclusion: The findings indicate that pre-analytical variables remain an important focus for attention to the clinical laboratory. The correct data collection of patients’ conditions is critical to support the post-analytical phase with useful information for the production of reliable exams and serve as a useful interpretation to diagnosis.
DOI: 10.6084/m9.figshare.11997369
title: Acute Toxicity in Urban Area of Água Boa Stream Watershed, MS, Brazil

description: ABSTRACT The watershed of Água Boa Stream (Dourados/MS) suffers great anthropic influence, such as urban and industrial. Taking into consideration its importance for maintenance of fauna, flora, industry and local population, this study aimed to: assess the toxicity of its waters during the dry and rainy seasons of 2013, near the source to its mouth, through acute toxicity essays with D. similis and D. rerio, as well as physical, chemical and heavy metal concentration analyses. The results showed spatial and temporal variability of the analyzed parameters. Furthermore, a toxic effect was found at point 02 for D. rerio in both periods. The analyses confirmed the critical situation of degradation of the aquatic environment studied, and warns that precautions should be taken. Therefore, it is suggested that greater supervision by environmental agencies, as well as public awareness of the issue of waste and residues in the water body, in order to avoid its degradation.
DOI: 10.6084/m9.figshare.11997366
title: Sociodemographic and clinicopathological profile of 80 cases of oral squamous cell carcinoma

description: ABSTRACT Objective: To describe demographic and clinicopathologic profile of oral squamous cell carcinoma (OSCC) cases from incisional biopsies collected at the Nova Friburgo Health Institute of the Fluminense Federal University [Instituto de Saúde de Nova Friburgo da Universidade Federal Fluminense (ISNF/UFF)] and at the Raul Sertã Municipal Hospital [Hospital Municipal Raul Sertã (HMRS)]. Methods: Oral Pathology Laboratory records from the ISNF/UFF were reviewed and all cases of OSCC were primarily selected. Cases from ISNF/UFF and HMRS were selected and had their demographic data collected from the medical records. Clinical characteristics were evaluated using the images of the lesions taken on the biopsy day and the laboratory files. The histological slides were later reviewed. Results: Eighty cases of OSCC were identified. Most patients were male (56.7%), with a mean age of 60 years, smoker (62.71%) and/or alcoholic (44.55%). The most affected anatomic site was the tongue (39.49%), presenting mainly as an ulcer (39.49%). Microscopically, the well-differentiated lesions were more common (35.44%), and the mean counting of mitoses was 5.5/10 high-power field. Conclusion: The profile of OSCC patients in Nova Friburgo partly reflects the world literature, with emphasis on the following differences: low average number of mitoses found in the histopathological analysis and prevalence of well-differentiated lesions. Such differences may be a result of the characteristic variations of the local population, reinforcing the importance of conducting epidemiological studies that demonstrate OSCC peculiarities in different regions.
DOI: 10.6084/m9.figshare.11997366.v1
title: Sociodemographic and clinicopathological profile of 80 cases of oral squamous cell carcinoma

description: ABSTRACT Objective: To describe demographic and clinicopathologic profile of oral squamous cell carcinoma (OSCC) cases from incisional biopsies collected at the Nova Friburgo Health Institute of the Fluminense Federal University [Instituto de Saúde de Nova Friburgo da Universidade Federal Fluminense (ISNF/UFF)] and at the Raul Sertã Municipal Hospital [Hospital Municipal Raul Sertã (HMRS)]. Methods: Oral Pathology Laboratory records from the ISNF/UFF were reviewed and all cases of OSCC were primarily selected. Cases from ISNF/UFF and HMRS were selected and had their demographic data collected from the medical records. Clinical characteristics were evaluated using the images of the lesions taken on the biopsy day and the laboratory files. The histological slides were later reviewed. Results: Eighty cases of OSCC were identified. Most patients were male (56.7%), with a mean age of 60 years, smoker (62.71%) and/or alcoholic (44.55%). The most affected anatomic site was the tongue (39.49%), presenting mainly as an ulcer (39.49%). Microscopically, the well-differentiated lesions were more common (35.44%), and the mean counting of mitoses was 5.5/10 high-power field. Conclusion: The profile of OSCC patients in Nova Friburgo partly reflects the world literature, with emphasis on the following differences: low average number of mitoses found in the histopathological analysis and prevalence of well-differentiated lesions. Such differences may be a result of the characteristic variations of the local population, reinforcing the importance of conducting epidemiological studies that demonstrate OSCC peculiarities in different regions.
DOI: 10.6084/m9.figshare.11997369.v1
title: Acute Toxicity in Urban Area of Água Boa Stream Watershed, MS, Brazil

description: ABSTRACT The watershed of Água Boa Stream (Dourados/MS) suffers great anthropic influence, such as urban and industrial. Taking into consideration its importance for maintenance of fauna, flora, industry and local population, this study aimed to: assess the toxicity of its waters during the dry and rainy seasons of 2013, near the source to its mouth, through acute toxicity essays with D. similis and D. rerio, as well as physical, chemical and heavy metal concentration analyses. The results showed spatial and temporal variability of the analyzed parameters. Furthermore, a toxic effect was found at point 02 for D. rerio in both periods. The analyses confirmed the critical situation of degradation of the aquatic environment studied, and warns that precautions should be taken. Therefore, it is suggested that greater supervision by environmental agencies, as well as public awareness of the issue of waste and residues in the water body, in order to avoid its degradation.
DOI: 10.6084/m9.figshare.11997360
title: Germination conditions influence the physical characteristics, isoflavones, and vitamin C of soybean sprouts

description: Abstract: The objective of this work was to evaluate the effects of the germination conditions of 'BRS 216' soybean (Glycine max) on the length, yield, and isoflavone contents of sprouts. A 23 factorial arrangement was used to evaluate the variables soaking time, irrigation frequency, and germination time. Sprouts that showed better length and yield and higher isoflavone contents were evaluated for their chemical composition and vitamin C content. Soaking and germination time of soybean showed a positive and significant linear effect on sprout length. However, only germination time showed a significant positive linear effect on yield, and a significant negative linear effect on the content of malonylglycosides, aglycones, and total isoflavones. Soybean germination conditions were established at 6 hours of soaking, three days of germination, and 8 hours of irrigation frequency. Under these conditions, the obtained sprouts show a more preserved chemical composition, besides higher contents of β-glycosides, malonylglycosides, aglycones, total isoflavones, and vitamin C than the nongerminated soybean. Under suitable germination conditions, it is possible to produce soybean sprouts with better physical characteristics, higher yield, and higher contents of isoflavones, aglycones, and vitamin C.
DOI: 10.6084/m9.figshare.11997363
title: Phosphogypsum as sulfate source for sulphate-reducing bacteria in a continuous fluidized-bed reactor

description: ABSTRACT Phosphogypsum (PG) is one of the major byproducts of phosphoric acid production for fertilizers. It consists mainly of calcium sulfate dihydrate and may also contain toxic metals and residual acidity (pH 2-3). Generally, this waste is disposed in stacks near plants; however, this does not solve the environmental problems as there may be leaching of the waste piles by rainwater, contaminating the soil and water bodies. Therefore, PG disposal is a challenge for the fertilizer industry. This waste can be used as a sulfate source for sulfide production in anaerobic reactors using sulfate-reducing bacteria (SRB). The sulfide generated can be used later for the production of elemental sulfur or used in the precipitation of transition metals. This work evaluated the feasibility of using PG as a sulfate source for SRB in a continuous fluidized-bed reactor fed with glycerol p.a. as carbon source, and the hydraulic retention time (HRT) effect in the sulphate bioreduction process. The latter was determined at 15 ± 2.6 and 9.7 ± 1.2 h, respectively, for the theoretical values of 10 and 8 hours, from the use of lithium chloride as tracer. Sulfate removal at DQO/SO4 2- ratio of 1.9 was 73 ± 11 and 75 ± 12%, respectively, for HRT of 15 ± 2.6 and 9.7 ± 1.2 h. Specific sulfate removal rates were 0.106 ± 0.04 and 0.179 ± 0.07 gSO4 2-/gSSV.d, respectively, for HRT 15 ± 2.6 and 9.7 ± 1.2 h.
DOI: 10.6084/m9.figshare.11997354
title: Oral glucose tolerance test: unnecessary requests and suitable conditions for the test

description: ABSTRACT Introduction: The oral glucose tolerance test (OGTT) is an important test for diagnosis of diabetes mellitus (DM) that needs criteria to be requested and analytical performance evaluation. Objectives: Determine the prevalence of unnecessary OGTT requests and analyze patients’ suitability criteria for glucose load. Method: Cross-sectional, descriptive and analytical study conducted with 554 patients who had OGTT requested from January to April 2018. Data from laboratory tests were collected through Complab Advanced version 6.9.6 system, organized into a Microsoft® Excel table and analyzed using Epi InfoTM, version 7.2.1.0. The accuracy of the glucometer paired analysis was performed by determinations of Student’s t test, using SPSS version of IBM 21TM. Patients with a previous diagnosis of DM and/or who showed OGTT request as a screening test along with blood glucose or glycated hemoglobin were classified as unnecessary requests. Results: Among the studied patients, 17% (94) had unnecessary OGTT requests, 53 (53.4%) patients had blood glucose ≥ 140 mg/dl and previous DM and/or OGTT used as screening; 41 (43.6 %) patients with capillary blood glucose &lt; 140 mg/dl, but with a diagnosis of DM. The glucometer proved to be accurate with a high correlation (r 2 = 0.97, p &lt; 0.0001) with serum glucose. Approaches during screening and capillary blood glucose prevented unnecessary exposure to glucose overload in 67% (63) of the patients. Conclusion: The high prevalence of unnecessary OGTT requests underscores the need of criteria for OGTT requesting and the standardization of procedures for screening in the exam.
DOI: 10.6084/m9.figshare.11997360.v1
title: Germination conditions influence the physical characteristics, isoflavones, and vitamin C of soybean sprouts

description: Abstract: The objective of this work was to evaluate the effects of the germination conditions of 'BRS 216' soybean (Glycine max) on the length, yield, and isoflavone contents of sprouts. A 23 factorial arrangement was used to evaluate the variables soaking time, irrigation frequency, and germination time. Sprouts that showed better length and yield and higher isoflavone contents were evaluated for their chemical composition and vitamin C content. Soaking and germination time of soybean showed a positive and significant linear effect on sprout length. However, only germination time showed a significant positive linear effect on yield, and a significant negative linear effect on the content of malonylglycosides, aglycones, and total isoflavones. Soybean germination conditions were established at 6 hours of soaking, three days of germination, and 8 hours of irrigation frequency. Under these conditions, the obtained sprouts show a more preserved chemical composition, besides higher contents of β-glycosides, malonylglycosides, aglycones, total isoflavones, and vitamin C than the nongerminated soybean. Under suitable germination conditions, it is possible to produce soybean sprouts with better physical characteristics, higher yield, and higher contents of isoflavones, aglycones, and vitamin C.
DOI: 10.6084/m9.figshare.11997363.v1
title: Phosphogypsum as sulfate source for sulphate-reducing bacteria in a continuous fluidized-bed reactor

description: ABSTRACT Phosphogypsum (PG) is one of the major byproducts of phosphoric acid production for fertilizers. It consists mainly of calcium sulfate dihydrate and may also contain toxic metals and residual acidity (pH 2-3). Generally, this waste is disposed in stacks near plants; however, this does not solve the environmental problems as there may be leaching of the waste piles by rainwater, contaminating the soil and water bodies. Therefore, PG disposal is a challenge for the fertilizer industry. This waste can be used as a sulfate source for sulfide production in anaerobic reactors using sulfate-reducing bacteria (SRB). The sulfide generated can be used later for the production of elemental sulfur or used in the precipitation of transition metals. This work evaluated the feasibility of using PG as a sulfate source for SRB in a continuous fluidized-bed reactor fed with glycerol p.a. as carbon source, and the hydraulic retention time (HRT) effect in the sulphate bioreduction process. The latter was determined at 15 ± 2.6 and 9.7 ± 1.2 h, respectively, for the theoretical values of 10 and 8 hours, from the use of lithium chloride as tracer. Sulfate removal at DQO/SO4 2- ratio of 1.9 was 73 ± 11 and 75 ± 12%, respectively, for HRT of 15 ± 2.6 and 9.7 ± 1.2 h. Specific sulfate removal rates were 0.106 ± 0.04 and 0.179 ± 0.07 gSO4 2-/gSSV.d, respectively, for HRT 15 ± 2.6 and 9.7 ± 1.2 h.
DOI: 10.6084/m9.figshare.11997351
title: Martin's, Friedewald's and Cordova's formulas compared to LDL-C directly measured in Southern Brazil

description: ABSTRACT Introduction: Recently, fasting flexibility for laboratory determination of lipid profile has been recommended. When triglycerides (TG) are above 400 mg/dl, the formula proposed by Martin et al. should be used to estimate the low-density lipoprotein cholesterol (LDL-C). However, this formula has not been evaluated in our population. Objectives: We evaluated the performance of Martin’s equation for LDL-C estimation compared to Cordova & Cordova and Friedewald formulas in a population of Southern Brazil. Methods: Sampling consisted of 10,664 Brazilian individuals (5,847 women) aged 1 to 93 years, with TG, total cholesterol (TC), high-density lipoprotein cholesterol (HDL-C) and LDL-C directly measured. Results: Martin’s formula presented significantly higher LDL-C values in patients with TG &lt; 300 mg/dl, underestimating values when TG &gt; 400 mg/dl, even with negative values; and LDL-C values was also overestimated in all TC ranges, with greater standard deviation. It also presented a higher mean error in the stratified intervals, and a lower correlation coefficient. Conclusion: Martin’s equation is not accurate for estimating LDL-C in our sample, unless TG is between 300 and 400 mg/dl. We recommend using the Cordova & Cordova formula as an alternative to determine LDL-C when its direct measurement is not available, and not applying the Martin’s Formula indiscriminately to other populations before it is properly evaluated and compared with other available equations.
DOI: 10.6084/m9.figshare.11997354.v1
title: Oral glucose tolerance test: unnecessary requests and suitable conditions for the test

description: ABSTRACT Introduction: The oral glucose tolerance test (OGTT) is an important test for diagnosis of diabetes mellitus (DM) that needs criteria to be requested and analytical performance evaluation. Objectives: Determine the prevalence of unnecessary OGTT requests and analyze patients’ suitability criteria for glucose load. Method: Cross-sectional, descriptive and analytical study conducted with 554 patients who had OGTT requested from January to April 2018. Data from laboratory tests were collected through Complab Advanced version 6.9.6 system, organized into a Microsoft® Excel table and analyzed using Epi InfoTM, version 7.2.1.0. The accuracy of the glucometer paired analysis was performed by determinations of Student’s t test, using SPSS version of IBM 21TM. Patients with a previous diagnosis of DM and/or who showed OGTT request as a screening test along with blood glucose or glycated hemoglobin were classified as unnecessary requests. Results: Among the studied patients, 17% (94) had unnecessary OGTT requests, 53 (53.4%) patients had blood glucose ≥ 140 mg/dl and previous DM and/or OGTT used as screening; 41 (43.6 %) patients with capillary blood glucose &lt; 140 mg/dl, but with a diagnosis of DM. The glucometer proved to be accurate with a high correlation (r 2 = 0.97, p &lt; 0.0001) with serum glucose. Approaches during screening and capillary blood glucose prevented unnecessary exposure to glucose overload in 67% (63) of the patients. Conclusion: The high prevalence of unnecessary OGTT requests underscores the need of criteria for OGTT requesting and the standardization of procedures for screening in the exam.
DOI: 10.6084/m9.figshare.11997345
title: Electricity cost of rapid filter backwashing in a water treatment plant

description: ABSTRACT This paper aims to determine the cost of electricity for rapid filter backwashing procedures at water treatment plants, whose flow rate is 45 L/s. Flow and electricity consumption were monitored in order to analyze the performance of the pumping systems. Additionally, the effluent water quality of three washes was monitored in filter 4 and a survey of the electricity fare data of the treatment unit was carried out. With the results obtained, it was observed that the effluent turbidity values at the end of the three washes, in this case 31, 30, and 27 NTU, did not reach the minimum values recommended in the technical literature, which is at least 15 NTU. It was also observed the impossibility of prolonging the backwashing time in order to reach the standard of the literature, due to the double function of the elevated washing water reservoir (treated water), whose main purpose is to provide treated water to the water distribution network. Taking into account these limitations and the final quality of the wash effluent, it was observed that the duration of backwashing procedures should be around 380 seconds (6.3 minutes), consuming 23.36 m3/wash. The backwashing procedure cost was estimated at R$ 1.36/m3, which resulted in R$ 31.83/wash. Considering the whole filtration unit, the backwashing procedure cost was R$ 254.64/day, R$ 7,639.20/month, and R$ 91,670.4/year. This value can be classified as too expensive considering the treatment plant studied.
DOI: 10.6084/m9.figshare.11997351.v1
title: Martin's, Friedewald's and Cordova's formulas compared to LDL-C directly measured in Southern Brazil

description: ABSTRACT Introduction: Recently, fasting flexibility for laboratory determination of lipid profile has been recommended. When triglycerides (TG) are above 400 mg/dl, the formula proposed by Martin et al. should be used to estimate the low-density lipoprotein cholesterol (LDL-C). However, this formula has not been evaluated in our population. Objectives: We evaluated the performance of Martin’s equation for LDL-C estimation compared to Cordova & Cordova and Friedewald formulas in a population of Southern Brazil. Methods: Sampling consisted of 10,664 Brazilian individuals (5,847 women) aged 1 to 93 years, with TG, total cholesterol (TC), high-density lipoprotein cholesterol (HDL-C) and LDL-C directly measured. Results: Martin’s formula presented significantly higher LDL-C values in patients with TG &lt; 300 mg/dl, underestimating values when TG &gt; 400 mg/dl, even with negative values; and LDL-C values was also overestimated in all TC ranges, with greater standard deviation. It also presented a higher mean error in the stratified intervals, and a lower correlation coefficient. Conclusion: Martin’s equation is not accurate for estimating LDL-C in our sample, unless TG is between 300 and 400 mg/dl. We recommend using the Cordova & Cordova formula as an alternative to determine LDL-C when its direct measurement is not available, and not applying the Martin’s Formula indiscriminately to other populations before it is properly evaluated and compared with other available equations.