cometadata/datacite-titles-descriptions-related-identifiers huggingface dataset:
DOI: 10.6084/m9.figshare.8259674
title: Concrete with tire rubber for use in low traffic paving

description: ABSTRACT The ever-growing demand for new cars implies that more tires are fabricated each year. Nevertheless, after the end of their lifespan, they become an environmental passive of difficult final disposition, both because of their big volume and because of their lengthy decomposition. Discarding them inadequately causes important damages to the environment and favors the proliferation of vectors of human diseases. In order to contribute to the reversal logistics of unserviceable tires, this work aims at, to create a concrete with the insertion of tire retreading rubber residue in proportions of 6% and 9% in weight, to be used in the manufacturing of interlocked blocks for low-traffic pavements. The experimental method consisted of analyzing the mechanical behavior and absorption of water, gradation and specific weight. Macroscopic and microscopic analysis with the utilization of stereoscope and Scanning Electron Macroscope (SEM), respectively, were also conducted. Finally, a quantitative evaluation of the environmental benefits of the use of the residue was made, as well as an analysis of the costs of manufacturing a concrete with rubber. The results demonstrate that the addition of rubber allows for a minor reduction of the concrete’s strength by 15.24% and 17.27% for 6wt% and 9wt% of added rubber, respectively. However, all the mixes produced exceeded the level of 35 MPa required in Brazilian regulations (ABNT: NBR 9781/2013), thus fit for the use in low-traffic roads. The concrete with rubber also offered advantages such as reduction of specific weight and 4% lower production costs. From the analysis, the technical, economic and environmental viability of this alternative is established, being it useful for the for the management of unserviceable of pneumatics and for the manufacturing of paving blocks of satisfactory quality according to the most accepted technical standards.
DOI: 10.6084/m9.figshare.8259668
title: Wage determinants analysis of Brazilian professionals producers of music content: a view by a long tail approach

description: Abstract This article aims to compare the wages determinants for brazilian producers of musical content, splitted in two main groups: those who earn greater wages and those who earn minor wages. The aproach used to support this analysis is nominated The Long Tail, which was developed by Anderson (2006) and says that the music market can be divided in two parts, ie the hits market and the niches market. To percieve the effects of each variable over the hour-wage in those two different markets we use quantile regressions, applied over a typical mincerian wage function. The conclusions of this paper suggests that some of the wages determinants affect in a different ways the two specific music markets, described by the Long Tail aproach.
DOI: 10.6084/m9.figshare.8259668.v1
title: Wage determinants analysis of Brazilian professionals producers of music content: a view by a long tail approach

description: Abstract This article aims to compare the wages determinants for brazilian producers of musical content, splitted in two main groups: those who earn greater wages and those who earn minor wages. The aproach used to support this analysis is nominated The Long Tail, which was developed by Anderson (2006) and says that the music market can be divided in two parts, ie the hits market and the niches market. To percieve the effects of each variable over the hour-wage in those two different markets we use quantile regressions, applied over a typical mincerian wage function. The conclusions of this paper suggests that some of the wages determinants affect in a different ways the two specific music markets, described by the Long Tail aproach.
DOI: 10.6084/m9.figshare.8259671.v1
title: Validation and application of an analytical method for the determination of mycotoxins in crackers by UPLC-MS/MS

description: Abstract An analytical method applying ultra-performance liquid chromatography-tandem mass spectrometry (UPLC-MS/MS) was validated for the determination of aflatoxins M2, M1, G2, G1, B2, B1, deoxynivalenol, ochratoxin A, fumonisins B1 and B2, hydrolyzed fumonisins B1 and B2, zearalenone and sterigmatocystin in crackers. The obtained recoveries (70 to 110%) and relative standard deviations (&lt; 13%) were considered satisfactory. Method limits of quantification ranged from 0.20 µg kg-1 (sterigmatocystin) to 12.27 µg kg-1 (deoxynivalenol). The validated method was then applied for mycotoxin determination in 60 cracker samples (cream crackers and water and salt crackers) obtained from the metropolitan area of the state of Rio de Janeiro, RJ. Deoxynivalenol, zearalenone and fumonisin B1 were found, respectively, in 100, 50 and 28% of the analyzed samples. The maximum permissible limits established by Brazilian legislation for deoxynivalenol and zearalenone were not exceeded in the analyzed samples.
DOI: 10.6084/m9.figshare.8259674.v1
title: Concrete with tire rubber for use in low traffic paving

description: ABSTRACT The ever-growing demand for new cars implies that more tires are fabricated each year. Nevertheless, after the end of their lifespan, they become an environmental passive of difficult final disposition, both because of their big volume and because of their lengthy decomposition. Discarding them inadequately causes important damages to the environment and favors the proliferation of vectors of human diseases. In order to contribute to the reversal logistics of unserviceable tires, this work aims at, to create a concrete with the insertion of tire retreading rubber residue in proportions of 6% and 9% in weight, to be used in the manufacturing of interlocked blocks for low-traffic pavements. The experimental method consisted of analyzing the mechanical behavior and absorption of water, gradation and specific weight. Macroscopic and microscopic analysis with the utilization of stereoscope and Scanning Electron Macroscope (SEM), respectively, were also conducted. Finally, a quantitative evaluation of the environmental benefits of the use of the residue was made, as well as an analysis of the costs of manufacturing a concrete with rubber. The results demonstrate that the addition of rubber allows for a minor reduction of the concrete’s strength by 15.24% and 17.27% for 6wt% and 9wt% of added rubber, respectively. However, all the mixes produced exceeded the level of 35 MPa required in Brazilian regulations (ABNT: NBR 9781/2013), thus fit for the use in low-traffic roads. The concrete with rubber also offered advantages such as reduction of specific weight and 4% lower production costs. From the analysis, the technical, economic and environmental viability of this alternative is established, being it useful for the for the management of unserviceable of pneumatics and for the manufacturing of paving blocks of satisfactory quality according to the most accepted technical standards.
DOI: 10.6084/m9.figshare.8259653
title: Passiflora foetida yielding and nutritional composition

description: Abstract Even though wild maracuja (Passiflora foetida) is cultivated in tropical areas, no thorough investigation regarding its yield or nutritional composition is easily available. This paper aims to estimate its fruit yield, using four staking systems; as well as determine both its fruit pulp and peel chemical composition. The treatments used were T1= No staking, T2= A vertical rod, T3= A horizontal rod, 60 cm from the ground, T4= Two horizontal poles, 60 and 120 cm from the ground, and T5= Using horizontal trellises, 80 cm above ground. The findings showed T5, T4, T3, T2 and T1 to yield 1.40, 1.05, 0.66, 0.40 and 0.35 tons of fruits per hectare, respectively. In general, the fruit pulp held higher nutrient content than that of fruit peel. The pulp presented 2.6%, 4.5% and 24.3% protein, lipids and carbohydrates, respectively. We conclude this genotype to bear low yielding potential, which may be lightly enhanced when cultivated using horizontal trellises.
DOI: 10.6084/m9.figshare.8259665
title: Parasitic fauna and parasite-host relationship of tambaqui reared in São Francisco river basin, Brazilian northeast

description: ABSTRACT This study investigated the parasitic fauna of tambaquis reared in lower Sao Francisco region-Al/SE-Brazil correlating parasitic indices to abiotic and biotic factors. A total of 252 specimens of tambaqui were collected in ten fish farms for parasitological analysis. The parasites were counted, identified and the parasitological indices were determined and correlated to biotic and abiotic factors. Of all collected fish, 65,5 % were parasitized by at least one taxon. Ten taxa were found: Monogeneans, Ichthyophthirius multifiliis, trichodinids Piscinoodinium pillulare, Ichthyobodo sp, Dolops carvalhoi, Lernaea cyprinacea, Procamallanus (Spirocamallanus) inopinatus, Henneguya sp. and Myxobolus sp. The higher prevalences were found to monogeneans (49.2%) and Myxobolus sp. (31.5%). Negative correlation of prevalence and biotic factor (weight and length) were observed to monogeneans (r 2 = -0.49, r 2 = -0.43), Myxobolus sp (r²= -0.46; r²= -0.39) and Henneguya sp (r²= -0.41; r²= -0.39). Abiotic factor of temperature presented a negative correlation to prevalence of Lernaea cyprinacea and trichodinids (r= -0.39 e r= -0.33, respectively) and the electric conductivity presented positive correlation to trichodinids (r= 0.40). It was concluded that parasitic fauna of tambaquis cultured in Lower São Francisco region is diversified and the parasitic load dependent on water parameters and fish growth.
DOI: 10.6084/m9.figshare.8259656
title: Hybrid maize selection through GGE biplot analysis

description: ABSTRACT The cultivation of genotypes non-adapted to the cultivation region of interest is among the main factors responsible for low yield. The aim of the present study is to select hybrid maize through GGE biplot analysis and to assess its adaptability and stability in different environments in Northeastern Brazil. Twenty-five hybrid maize cultivars were assessed in ten different environments in Northeastern Brazil in 2012 and 2013 based on the randomized block design, with two replications. The analysis of variance and assessment of genotype adaptability and stability were made through GGE biplot analysis, based on grain yield. Analysis of variance results showed different performances depending on the genotype, as well as genotype/environment interaction. The biplot analysis was efficient on data interpretation and represented 63.73% of the total variation in the first two main components, it also allowed classifying the ten environments into three macro-environments. Most environments were positively correlated. Hybrids 2 B 604 HX, 30 A 95 HX, 2 B 587 HX and 2 B 710 HX were responsive and stable. Hybrid 30 A 16 HX was recommended for macro-environments2 and 3. Cultivar 30 A 68 HX was recommended to environment 1. São Raimundo das Mangabeiras and Nova Santa Rosa counties were discriminating and representative. Nossa Senhora das Dores, Umbaúba, Teresina, Brejo, Frei Paulo, Colinas and Balsa counties were ambiguous and non-recommended for further evaluations.
DOI: 10.6084/m9.figshare.8259665.v1
title: Parasitic fauna and parasite-host relationship of tambaqui reared in São Francisco river basin, Brazilian northeast

description: ABSTRACT This study investigated the parasitic fauna of tambaquis reared in lower Sao Francisco region-Al/SE-Brazil correlating parasitic indices to abiotic and biotic factors. A total of 252 specimens of tambaqui were collected in ten fish farms for parasitological analysis. The parasites were counted, identified and the parasitological indices were determined and correlated to biotic and abiotic factors. Of all collected fish, 65,5 % were parasitized by at least one taxon. Ten taxa were found: Monogeneans, Ichthyophthirius multifiliis, trichodinids Piscinoodinium pillulare, Ichthyobodo sp, Dolops carvalhoi, Lernaea cyprinacea, Procamallanus (Spirocamallanus) inopinatus, Henneguya sp. and Myxobolus sp. The higher prevalences were found to monogeneans (49.2%) and Myxobolus sp. (31.5%). Negative correlation of prevalence and biotic factor (weight and length) were observed to monogeneans (r 2 = -0.49, r 2 = -0.43), Myxobolus sp (r²= -0.46; r²= -0.39) and Henneguya sp (r²= -0.41; r²= -0.39). Abiotic factor of temperature presented a negative correlation to prevalence of Lernaea cyprinacea and trichodinids (r= -0.39 e r= -0.33, respectively) and the electric conductivity presented positive correlation to trichodinids (r= 0.40). It was concluded that parasitic fauna of tambaquis cultured in Lower São Francisco region is diversified and the parasitic load dependent on water parameters and fish growth.
DOI: 10.6084/m9.figshare.8259653.v1
title: Passiflora foetida yielding and nutritional composition

description: Abstract Even though wild maracuja (Passiflora foetida) is cultivated in tropical areas, no thorough investigation regarding its yield or nutritional composition is easily available. This paper aims to estimate its fruit yield, using four staking systems; as well as determine both its fruit pulp and peel chemical composition. The treatments used were T1= No staking, T2= A vertical rod, T3= A horizontal rod, 60 cm from the ground, T4= Two horizontal poles, 60 and 120 cm from the ground, and T5= Using horizontal trellises, 80 cm above ground. The findings showed T5, T4, T3, T2 and T1 to yield 1.40, 1.05, 0.66, 0.40 and 0.35 tons of fruits per hectare, respectively. In general, the fruit pulp held higher nutrient content than that of fruit peel. The pulp presented 2.6%, 4.5% and 24.3% protein, lipids and carbohydrates, respectively. We conclude this genotype to bear low yielding potential, which may be lightly enhanced when cultivated using horizontal trellises.
DOI: 10.6084/m9.figshare.8259650
title: Reproductive parameters of pasture-raised Nelore bulls (Bos taurus indicus) in different age

description: ABSTRACT This study aimed to demonstrate the effect of age on bull traits such as scrotal circumference, pelage color, and semen quality, from puberty to post sexual maturity. Data from 6607 breeding soundness examinations of pasture raised Nelore bulls were used. The animals presented different age groups ranging from 12 to 80 months. The andrological examination consisted in reproductive clinical evaluation, assessment of scrotal perimeter (PE). In addition, color of pelage (COR; 1-4) was recorded for each animal. Four age groups were established, which were compared by Bonferroni test. Semen parameters, scrotal circumference (PE) and color of the pelage (COR) varied (P&lt; 0.05) according to the age range: A) 12-18m: COR=1.45±0.64 a , PE=31.63±3.51cm a , Total Motility (Mot)=67.73±17.99% a , Total os sperm defects (TDE)=16.22±16.95% a ; B) 18-24m: COR=1.50±0.57 b , PE=32.00±3.47cm a , Mot=69.60±29.13% a , TDE=14.49±15.00% b ; C) 24-36m: COR=1.51±0.66 b , PE=33.56±3.91cm b , Mot=69.46±15.52% a , TDE=12.29±12.92% c ; D) 36-48m: COR=1.60±0.57 c , PE=36.66±3.50cm c , Mot=71.04±16.19% b , TDE=10.87±12.97% d ; E) &gt;48m: COR=1.64±0.72 c , PE=38.00±3.22 d , Mot=71.54±15.30 b , TDE=9.70±16.95 d . It was concluded that age influences testicular size, pelage color, and semen quality parameters. As the age progresses, there is an increase in scrotal perimeter, hair darkening, sperm motility and vigor, and reduction of sperm morphological defects of pasture raised Nelore bulls, assessed as from as 12 months of age.
DOI: 10.6084/m9.figshare.8259656.v1
title: Hybrid maize selection through GGE biplot analysis

description: ABSTRACT The cultivation of genotypes non-adapted to the cultivation region of interest is among the main factors responsible for low yield. The aim of the present study is to select hybrid maize through GGE biplot analysis and to assess its adaptability and stability in different environments in Northeastern Brazil. Twenty-five hybrid maize cultivars were assessed in ten different environments in Northeastern Brazil in 2012 and 2013 based on the randomized block design, with two replications. The analysis of variance and assessment of genotype adaptability and stability were made through GGE biplot analysis, based on grain yield. Analysis of variance results showed different performances depending on the genotype, as well as genotype/environment interaction. The biplot analysis was efficient on data interpretation and represented 63.73% of the total variation in the first two main components, it also allowed classifying the ten environments into three macro-environments. Most environments were positively correlated. Hybrids 2 B 604 HX, 30 A 95 HX, 2 B 587 HX and 2 B 710 HX were responsive and stable. Hybrid 30 A 16 HX was recommended for macro-environments2 and 3. Cultivar 30 A 68 HX was recommended to environment 1. São Raimundo das Mangabeiras and Nova Santa Rosa counties were discriminating and representative. Nossa Senhora das Dores, Umbaúba, Teresina, Brejo, Frei Paulo, Colinas and Balsa counties were ambiguous and non-recommended for further evaluations.
DOI: 10.6084/m9.figshare.8259638
title: Unscheduled Emergency Visits after Cardiac Devices Implantation: Comparison between Cardioverter Defibrillators and Cardiac Resynchronization Therapy Devices in less than one year of Follow Up

description: Abstract Background: The use of Cardiovascular Implantable Electronic Devices (CIED), such as the Implantable Cardioverter Defibrillator (ICD) and Cardiac Resynchronization Therapy (CRT), is increasing. The number of leads may vary according to the device. Lead placement in the left ventricle increases surgical time and may be associated with greater morbidity after hospital discharge, an event that is often confused with the underlying disease severity. Objective: To evaluate the rate of unscheduled emergency hospitalizations and death after implantable device surgery stratified by the type of device. Methods: Prospective cohort study of 199 patients submitted to cardiac device implantation. The groups were stratified according to the type of device: ICD group (n = 124) and CRT group (n = 75). Probability estimates were analyzed by the Kaplan-Meier method according to the outcome. A value of p &lt; 0.05 was considered significant in the statistical analyses. Results: Most of the sample comprised male patients (71.9%), with a mean age of 61.1 ± 14.2. Left ventricular ejection fraction was similar between the groups (CRT 37.4 ± 18.1 vs. ICD 39.1 ± 17.0, p = 0.532). The rate of unscheduled visits to the emergency unit related to the device was 4.8% in the ICD group and 10.6% in the CRT group (p = 0.20). The probability of device-related survival of the variable “death” was different between the groups (p = 0.008). Conclusions: Patients after CRT implantation show a higher probability of mortality after surgery at a follow-up of less than 1 year. The rate of unscheduled hospital visits, related or not to the implant, does not differ between the groups.
DOI: 10.6084/m9.figshare.8259644
title: Anatomopathological and immunohistochemical characterization of skin gland tumors in dogs

description: ABSTRACT The present study aimed to characterize the anatomopathological and immunohistochemical aspects of cutaneous glandular tumors in dogs. Tumours were diagnosed according to the WHO criteria for canine skin neoplasms. For the immunohistochemical characterization, the primary monoclonal antibodies anti-cytokeratin 14 (CK14), vimentin, p63, calponin, EGFR and Ki-67 were used. Males were 66.67% (18/27) and females 33.33% (9/27), 21 had a defined race and 6 were mixed breed, with ages varying from 7 to 15 years. The tumors characterized were 40.74% hepatoid (11/27), 29.63% sebaceous (8/27), 25.92% apocrine (7/27) and 3.70% Meibômio (1/27). Malignant tumors accounted for 55.56% and benign tumors 44.44%. With these results it was possible to demonstrate that tumors of cutaneous glands in dogs are frequent, with no predilection for race, sex and with an age ≥ seven years. The CK 14 antibodies, p63, vimentin, and EGFR were imunoexpressed in the basal cells of the sebaceous cell differentiation and Meibomian hepatoides tumors and myoepithelial to cells. However, vimentin and EGFR did not demonstrate immunostaining for sebaceous tumors. Calponin was a good marker for myoepithelial cells. The Ki-67 index was more pronounced in malignant tumors compared to benign tumors. However, more studies are needed mainly using a higher number of tumors.
DOI: 10.6084/m9.figshare.8259644.v1
title: Anatomopathological and immunohistochemical characterization of skin gland tumors in dogs

description: ABSTRACT The present study aimed to characterize the anatomopathological and immunohistochemical aspects of cutaneous glandular tumors in dogs. Tumours were diagnosed according to the WHO criteria for canine skin neoplasms. For the immunohistochemical characterization, the primary monoclonal antibodies anti-cytokeratin 14 (CK14), vimentin, p63, calponin, EGFR and Ki-67 were used. Males were 66.67% (18/27) and females 33.33% (9/27), 21 had a defined race and 6 were mixed breed, with ages varying from 7 to 15 years. The tumors characterized were 40.74% hepatoid (11/27), 29.63% sebaceous (8/27), 25.92% apocrine (7/27) and 3.70% Meibômio (1/27). Malignant tumors accounted for 55.56% and benign tumors 44.44%. With these results it was possible to demonstrate that tumors of cutaneous glands in dogs are frequent, with no predilection for race, sex and with an age ≥ seven years. The CK 14 antibodies, p63, vimentin, and EGFR were imunoexpressed in the basal cells of the sebaceous cell differentiation and Meibomian hepatoides tumors and myoepithelial to cells. However, vimentin and EGFR did not demonstrate immunostaining for sebaceous tumors. Calponin was a good marker for myoepithelial cells. The Ki-67 index was more pronounced in malignant tumors compared to benign tumors. However, more studies are needed mainly using a higher number of tumors.
DOI: 10.6084/m9.figshare.8259650.v1
title: Reproductive parameters of pasture-raised Nelore bulls (Bos taurus indicus) in different age

description: ABSTRACT This study aimed to demonstrate the effect of age on bull traits such as scrotal circumference, pelage color, and semen quality, from puberty to post sexual maturity. Data from 6607 breeding soundness examinations of pasture raised Nelore bulls were used. The animals presented different age groups ranging from 12 to 80 months. The andrological examination consisted in reproductive clinical evaluation, assessment of scrotal perimeter (PE). In addition, color of pelage (COR; 1-4) was recorded for each animal. Four age groups were established, which were compared by Bonferroni test. Semen parameters, scrotal circumference (PE) and color of the pelage (COR) varied (P&lt; 0.05) according to the age range: A) 12-18m: COR=1.45±0.64 a , PE=31.63±3.51cm a , Total Motility (Mot)=67.73±17.99% a , Total os sperm defects (TDE)=16.22±16.95% a ; B) 18-24m: COR=1.50±0.57 b , PE=32.00±3.47cm a , Mot=69.60±29.13% a , TDE=14.49±15.00% b ; C) 24-36m: COR=1.51±0.66 b , PE=33.56±3.91cm b , Mot=69.46±15.52% a , TDE=12.29±12.92% c ; D) 36-48m: COR=1.60±0.57 c , PE=36.66±3.50cm c , Mot=71.04±16.19% b , TDE=10.87±12.97% d ; E) &gt;48m: COR=1.64±0.72 c , PE=38.00±3.22 d , Mot=71.54±15.30 b , TDE=9.70±16.95 d . It was concluded that age influences testicular size, pelage color, and semen quality parameters. As the age progresses, there is an increase in scrotal perimeter, hair darkening, sperm motility and vigor, and reduction of sperm morphological defects of pasture raised Nelore bulls, assessed as from as 12 months of age.