cometadata/datacite-titles-descriptions-related-identifiers huggingface dataset:
DOI: 10.6084/m9.figshare.7186862
title: The effect of water source and soil supplementation on parasite contamination in organic vegetable gardens

description: Abstract The objective of this study was to determine factors associated with vegetable contamination with zoonotic protozoan. Samples of water, soil and vegetables were collected from July/2014 to May/2016, totaling 83 samples, 21 properties of Londrina region, Paraná, Brazil. DNA amplification of Toxoplasma gondii, Cryptosporidium spp. and Giardia intestinalis in the samples was conducted using polymerase chain reaction (PCR). The PCR results were positive for T. gondii in 12.9% (8/62), Cryptosporidium spp. in 11.3% (7/62) and G. intestinalis in 25.8% (16/62) of the samples. DNA sequencing identified C. parvum in five samples and G. intestinalis Assemblage E in three. The statistical associations demonstrated greater probability of positive samples for T. gondii and for at least one of the three protozoa when the source of irrigation water was the river; a greater chance of positive samples for Cryptosporidium spp. when deer were present on the property; and a smaller chance of positive samples for at least one of the three etiologic agents when soil was supplemented with limestone. The results expose some critical contamination points, providing support for training farmers on good management practices during the production process.
DOI: 10.6084/m9.figshare.7186859
title: Effect of addition of clay minerals on the properties of epoxy/polyester powder coatings

description: Abstract Powder coatings have been used for coating metal substrates in industrial applications. The incorporation of nanofillers as muscovite mica and montmorillonite (MMT) can improve the properties of the coatings. The objective of this study is to develop, apply and characterize a hybrid powder coating (30% epoxy/70% polyester) adding nanofillers in concentrations of 2, 4 and 6 phr separately in a twin screw extruder. The characterization of the coatings was performed by thermal, mechanical and chemical analysis. The incorporation of clay into the polymer increased the surface roughness resulting in a diffuse reflection of incident light and on a gloss reduction. The muscovite mica presented a lamellar structure, constituted by a set of overlapping parallel plates. The morphology analysis showed that the MMT presented irregular agglomerates resulting in inferior mechanical properties to coatings with muscovite mica. In the salt spray test, all samples showed high corrosion protection, around 850 hours.
DOI: 10.6084/m9.figshare.7186862.v1
title: The effect of water source and soil supplementation on parasite contamination in organic vegetable gardens

description: Abstract The objective of this study was to determine factors associated with vegetable contamination with zoonotic protozoan. Samples of water, soil and vegetables were collected from July/2014 to May/2016, totaling 83 samples, 21 properties of Londrina region, Paraná, Brazil. DNA amplification of Toxoplasma gondii, Cryptosporidium spp. and Giardia intestinalis in the samples was conducted using polymerase chain reaction (PCR). The PCR results were positive for T. gondii in 12.9% (8/62), Cryptosporidium spp. in 11.3% (7/62) and G. intestinalis in 25.8% (16/62) of the samples. DNA sequencing identified C. parvum in five samples and G. intestinalis Assemblage E in three. The statistical associations demonstrated greater probability of positive samples for T. gondii and for at least one of the three protozoa when the source of irrigation water was the river; a greater chance of positive samples for Cryptosporidium spp. when deer were present on the property; and a smaller chance of positive samples for at least one of the three etiologic agents when soil was supplemented with limestone. The results expose some critical contamination points, providing support for training farmers on good management practices during the production process.
DOI: 10.7284/113461
title: CTD (Conductivity, Temperature, Depth) data collected during research cruise TN307 using a Sea-Bird SBE-911+ instrument system onboard the platform RV Thomas G. Thompson

description: Original (unprocessed) data collected during a Field_expedition
DOI: 10.6084/m9.figshare.7186859.v1
title: Effect of addition of clay minerals on the properties of epoxy/polyester powder coatings

description: Abstract Powder coatings have been used for coating metal substrates in industrial applications. The incorporation of nanofillers as muscovite mica and montmorillonite (MMT) can improve the properties of the coatings. The objective of this study is to develop, apply and characterize a hybrid powder coating (30% epoxy/70% polyester) adding nanofillers in concentrations of 2, 4 and 6 phr separately in a twin screw extruder. The characterization of the coatings was performed by thermal, mechanical and chemical analysis. The incorporation of clay into the polymer increased the surface roughness resulting in a diffuse reflection of incident light and on a gloss reduction. The muscovite mica presented a lamellar structure, constituted by a set of overlapping parallel plates. The morphology analysis showed that the MMT presented irregular agglomerates resulting in inferior mechanical properties to coatings with muscovite mica. In the salt spray test, all samples showed high corrosion protection, around 850 hours.
DOI: 10.6084/m9.figshare.7186853
title: Influence of Myrothecium roridum on seed germination and seedling growth of melon plants. Summa Phytopathologica

description: ABSTRACT A large number of soilborne fungi affect melon crop, among which the species Myrothecium roridum is highlighted for attacking various parts of the plant, including the seed. The present study investigated the effect of Myrothecium roridum inoculation on seed germination and seedling growth of melon accessions/cultivars in order to identify the least sensitive genotypes. The experiment was carried out in completely randomized design with four replicates in 38 x 2 factorial arrangement, in which the first factor corresponded to the accessions/cultivars, with 38 levels, while the second factor, inoculation, had two levels: with and without inoculation. The evaluated traits were related to germination (emergence percentage and rate) and seedling growth (height, collar diameter, seedling dry weight and leaf area index). The fungus M. roridum negatively affected the germination, emergence rate and seedling development of melon accessions. The accessions with least sensitivity to the fungus M. roridum were: A-6, A-8, A-19, A-22, A-39 and A-45.
DOI: 10.7284/113481
title: GNSS (Global Navigation Satellite System) data collected during research cruise TN307 using a C&C C-Nav 3050 instrument system onboard the platform RV Thomas G. Thompson

description: Original (unprocessed) data collected during a Field_expedition
DOI: 10.6084/m9.figshare.7186853.v1
title: Influence of Myrothecium roridum on seed germination and seedling growth of melon plants. Summa Phytopathologica

description: ABSTRACT A large number of soilborne fungi affect melon crop, among which the species Myrothecium roridum is highlighted for attacking various parts of the plant, including the seed. The present study investigated the effect of Myrothecium roridum inoculation on seed germination and seedling growth of melon accessions/cultivars in order to identify the least sensitive genotypes. The experiment was carried out in completely randomized design with four replicates in 38 x 2 factorial arrangement, in which the first factor corresponded to the accessions/cultivars, with 38 levels, while the second factor, inoculation, had two levels: with and without inoculation. The evaluated traits were related to germination (emergence percentage and rate) and seedling growth (height, collar diameter, seedling dry weight and leaf area index). The fungus M. roridum negatively affected the germination, emergence rate and seedling development of melon accessions. The accessions with least sensitivity to the fungus M. roridum were: A-6, A-8, A-19, A-22, A-39 and A-45.
DOI: 10.7284/121183
title: GNSS (Global Navigation Satellite System) data collected during research cruise TN307 using a C&C C-Nav 2000 instrument system onboard the platform RV Thomas G. Thompson

description: Original (unprocessed) data collected during a Field_expedition
DOI: 10.6084/m9.figshare.7186847
title: Heat Requirements of Two Layer Strains Placed on Different Dates

description: ABSTRACT This study was conducted to calculate the heat requirements of Hy-line W-36 and Hy-line W-98 layer chicks placed on different dates, and to select one of these strains based on heat requirements and egg prices. An environmentally-controlled, mechanically-ventilated, and fan and pad-cooled house with a capacity of 94,500 chicks was designed. Based on the identification of September as the month with the highest egg prices, placement dates were selected (16th of March, 1st of April, 16th of April, 23rd of April and 1st of May) to coincide with economic egg weight in that month. The heat requirements for a rearing period of 35days of both evaluated strains starting on the above-mentioned dates were calculated using heat and moisture balance method commonly used for livestock and poultry houses. Those placement dates corresponded to economic egg weight dates (with 50-52 g eggs) of 15th of August, 1st of September, 16th of September, 23rd of September and 1st of October. Total heat requirements during the 35-day rearing periods of chicks placed on the identified dates were respectively calculated as 640, 601, 413, 401 and 369 kW/h for Hy-line W-36 and respectively as 778, 732, 551, 539 and 497 kW/h for Hy-line W-98 chicks. September had the highest egg prices for both strains (4.73 and 5.06 US cents/egg). The lowest heat requirement was observed when chicks were placed on the23rd of April. Hy-line W-36 chicks presented higher total heat requirement than Hy-line W-98 chicks. Therefore, 23rd of April as the most economic placement date and Hy-line W-36 as the most cost-effective layer strain.
DOI: 10.6084/m9.figshare.7186847.v1
title: Heat Requirements of Two Layer Strains Placed on Different Dates

description: ABSTRACT This study was conducted to calculate the heat requirements of Hy-line W-36 and Hy-line W-98 layer chicks placed on different dates, and to select one of these strains based on heat requirements and egg prices. An environmentally-controlled, mechanically-ventilated, and fan and pad-cooled house with a capacity of 94,500 chicks was designed. Based on the identification of September as the month with the highest egg prices, placement dates were selected (16th of March, 1st of April, 16th of April, 23rd of April and 1st of May) to coincide with economic egg weight in that month. The heat requirements for a rearing period of 35days of both evaluated strains starting on the above-mentioned dates were calculated using heat and moisture balance method commonly used for livestock and poultry houses. Those placement dates corresponded to economic egg weight dates (with 50-52 g eggs) of 15th of August, 1st of September, 16th of September, 23rd of September and 1st of October. Total heat requirements during the 35-day rearing periods of chicks placed on the identified dates were respectively calculated as 640, 601, 413, 401 and 369 kW/h for Hy-line W-36 and respectively as 778, 732, 551, 539 and 497 kW/h for Hy-line W-98 chicks. September had the highest egg prices for both strains (4.73 and 5.06 US cents/egg). The lowest heat requirement was observed when chicks were placed on the23rd of April. Hy-line W-36 chicks presented higher total heat requirement than Hy-line W-98 chicks. Therefore, 23rd of April as the most economic placement date and Hy-line W-36 as the most cost-effective layer strain.
DOI: 10.6084/m9.figshare.7186841
title: Taurine Reduces Heat Stress by Regulating the Expression of Heat Shock Proteins in Broilers Exposed to Chronic Heat

description: ABSTRACT The aim of the current study was to investigate the effects of taurine on heat stress by evaluating them RNA and protein expressions of HSP90, 70 and 60in Ross broilers. Birds were distributed in a control group (CO) reared at 24ºC, a heat-stress group (HS) maintained at 34°C (weeks 3-5) and not supplemented with taurine, and a heat-stress group (HST) maintained at 34°C (weeks 3-5) and supplemented with 0.1% taurine from 2 weeks of age. The final body weight was significantly higher in the HST group than in the HS group (p&lt;0.05). The mRNA expression of all three genes in the liver and of HSP90 in the muscle were significantly lower in the HST than in the HS group (p&lt;0.05). In the liver, the expression of HSP70 and HSP60 proteins was significantly higher in the HS group compared with the CO and HST groups (p&lt;0.05), while HSP90 expression was not different (p&gt;0.05). In the muscle, HSP70 expression was significantly lower in the HST group than in the CO and HS groups and HSP60 expression was dramatically decreased in HS group, whereas no differences in HSP90 expression were detected among groups. In conclusion, the broilers exposed to heat stress and supplemented with taurine showed lower expressions of heat shock genes and proteins both in the liver and muscle tissues, indicating that taurine supplementation improved broiler thermo-tolerance.
DOI: 10.7284/113460
title: Gravimeter data collected during research cruise TN307 using a Bell BGM-3 instrument system onboard the platform RV Thomas G. Thompson

description: Original (unprocessed) data collected during a Field_expedition
DOI: 10.6084/m9.figshare.7186835
title: Drying and extraction of astaxanthin from pink shrimp waste (Farfantepenaeus subtilis): the applicability of spouted beds

description: Abstract In this study, the spouted bed drying technique was used to obtain powder from shrimp wastes, with high quality for subsequent extraction of astaxanthin using vegetable oil, as alternative to organic solvents. Shrimp waste paste was dried in three inlet air temperatures (70, 80 and 90 °C), and air velocity used in the experiments was 100% over minimum spouting velocity. The minimum spouting, the velocities were 1.23, 1.33 and 1.39 m/s, for temperatures of 90, 100 and 110 °C respectively. The powder obtained in this work shows properties comparable to of the commercial products, indicating that the spouted bed is an alternative technique to obtain powdered products with quality good, at low cost and suitable for subsequent extraction of astaxanthin. The extractions of astaxanthin from shrimp waste were performed using palm olein at three different temperatures (50, 60, and 70 °C). At these conditions, maximum extraction of astaxanthin was 29.814µg/g of dried waste. The extraction kinetics were modeled using a simplified mass transfer kinetic model which showed a good agreement (0.9685
DOI: 10.6084/m9.figshare.7186838
title: Detection of Leifsonia xyli subsp. xyli in presprouted seedcane

description: ABSTRACT The first great change in recent years in the Brazilian sugarcane industry occurred when mechanical harvest replaced manual cuttings of burned canes. The second transformation has started with mechanization of planting materials thanks to new methodology such as presprouted seedcane (MPB in Portuguese). To ensure the success of such innovation, the use of healthy MPB is fundamental, especially against ratoon stunt, caused by Leifsonia xyli subsp. xyli (Lxx). This is considered the most important disease of sugarcane and the only means of introducing it to new areas is by the planting of contaminated propagative materials. Therefore, the aim of this study was to develop a diagnostic assay for early detection of Lxx in MPB. In the first assay, the efficacy of four primer pairs (Cxx ITSf#5/Cxx ITSr#5, Cxx1/Cxx2, C2F/C2R, LX23SF/LX23SR) was examined to identify adult plants contaminated with various titers of Lxx, under original conditions, as well as adapted conditions proposed in this study, our own modifications. Thus, adult sugarcane was used. In the second assay, the two best primers/conditions were tested in 45- and 60-day-old MPB derived from Lxx-contaminated materials. Data of the present study showed that the primer pair CXX ITSF # 5/CxxITSr # 5, under our modification conditions, was the most accurate since Lxx was detected in all 52 MPB aged 45 days from propagative materials contaminated with 109 to 106 CFU/mL.
DOI: 10.6084/m9.figshare.7186841.v1
title: Taurine Reduces Heat Stress by Regulating the Expression of Heat Shock Proteins in Broilers Exposed to Chronic Heat

description: ABSTRACT The aim of the current study was to investigate the effects of taurine on heat stress by evaluating them RNA and protein expressions of HSP90, 70 and 60in Ross broilers. Birds were distributed in a control group (CO) reared at 24ºC, a heat-stress group (HS) maintained at 34°C (weeks 3-5) and not supplemented with taurine, and a heat-stress group (HST) maintained at 34°C (weeks 3-5) and supplemented with 0.1% taurine from 2 weeks of age. The final body weight was significantly higher in the HST group than in the HS group (p&lt;0.05). The mRNA expression of all three genes in the liver and of HSP90 in the muscle were significantly lower in the HST than in the HS group (p&lt;0.05). In the liver, the expression of HSP70 and HSP60 proteins was significantly higher in the HS group compared with the CO and HST groups (p&lt;0.05), while HSP90 expression was not different (p&gt;0.05). In the muscle, HSP70 expression was significantly lower in the HST group than in the CO and HS groups and HSP60 expression was dramatically decreased in HS group, whereas no differences in HSP90 expression were detected among groups. In conclusion, the broilers exposed to heat stress and supplemented with taurine showed lower expressions of heat shock genes and proteins both in the liver and muscle tissues, indicating that taurine supplementation improved broiler thermo-tolerance.
DOI: 10.6084/m9.figshare.7186835.v1
title: Drying and extraction of astaxanthin from pink shrimp waste (Farfantepenaeus subtilis): the applicability of spouted beds

description: Abstract In this study, the spouted bed drying technique was used to obtain powder from shrimp wastes, with high quality for subsequent extraction of astaxanthin using vegetable oil, as alternative to organic solvents. Shrimp waste paste was dried in three inlet air temperatures (70, 80 and 90 °C), and air velocity used in the experiments was 100% over minimum spouting velocity. The minimum spouting, the velocities were 1.23, 1.33 and 1.39 m/s, for temperatures of 90, 100 and 110 °C respectively. The powder obtained in this work shows properties comparable to of the commercial products, indicating that the spouted bed is an alternative technique to obtain powdered products with quality good, at low cost and suitable for subsequent extraction of astaxanthin. The extractions of astaxanthin from shrimp waste were performed using palm olein at three different temperatures (50, 60, and 70 °C). At these conditions, maximum extraction of astaxanthin was 29.814µg/g of dried waste. The extraction kinetics were modeled using a simplified mass transfer kinetic model which showed a good agreement (0.9685
DOI: 10.6084/m9.figshare.7186838.v1
title: Detection of Leifsonia xyli subsp. xyli in presprouted seedcane

description: ABSTRACT The first great change in recent years in the Brazilian sugarcane industry occurred when mechanical harvest replaced manual cuttings of burned canes. The second transformation has started with mechanization of planting materials thanks to new methodology such as presprouted seedcane (MPB in Portuguese). To ensure the success of such innovation, the use of healthy MPB is fundamental, especially against ratoon stunt, caused by Leifsonia xyli subsp. xyli (Lxx). This is considered the most important disease of sugarcane and the only means of introducing it to new areas is by the planting of contaminated propagative materials. Therefore, the aim of this study was to develop a diagnostic assay for early detection of Lxx in MPB. In the first assay, the efficacy of four primer pairs (Cxx ITSf#5/Cxx ITSr#5, Cxx1/Cxx2, C2F/C2R, LX23SF/LX23SR) was examined to identify adult plants contaminated with various titers of Lxx, under original conditions, as well as adapted conditions proposed in this study, our own modifications. Thus, adult sugarcane was used. In the second assay, the two best primers/conditions were tested in 45- and 60-day-old MPB derived from Lxx-contaminated materials. Data of the present study showed that the primer pair CXX ITSF # 5/CxxITSr # 5, under our modification conditions, was the most accurate since Lxx was detected in all 52 MPB aged 45 days from propagative materials contaminated with 109 to 106 CFU/mL.
DOI: 10.6084/m9.figshare.7186832
title: STRONTIUM CARBONATE SOLUBILITY DATA IN AQUEOUS MIXTURES OF MONOETHYLENEGLYCOL UNDER A CARBON DIOXIDE ATMOSPHERE

description: Abstract In order to inhibit natural gas hydrate formation, monoethyleneglycol (MEG) is usually injected into producing well heads. The MEG regeneration process is continuously performed at the platform. Scaling problems usually occur due to the presence of chlorides and carbonates. This work presents salt solubility data for the aqueous system with strontium carbonate, MEG and carbon dioxide. A specific analytical method was developed. Thus, experimental data for strontium carbonate (SrCO3) solubility at various carbon dioxide pressures are reported. Solubilities of SrCO3 in water were measured from 760 to 1610 mmHg at 278.15. 288.15. 298.15 and 323.15 K. For the mixed solvent (ms) conditions, solubilities were measured at 298.15 K and four isobars, i.e., 760, 1210, 1410 and 1520 mmHg. Experimental data were correlated and demonstrated to be accurate for thermodynamic modeling and process simulation.
DOI: 10.7284/121184
title: Gyrocompass data collected during research cruise TN307 using a Sperry MK-37 instrument system onboard the platform RV Thomas G. Thompson

description: Original (unprocessed) data collected during a Field_expedition
DOI: 10.6084/m9.figshare.7186832.v1
title: STRONTIUM CARBONATE SOLUBILITY DATA IN AQUEOUS MIXTURES OF MONOETHYLENEGLYCOL UNDER A CARBON DIOXIDE ATMOSPHERE

description: Abstract In order to inhibit natural gas hydrate formation, monoethyleneglycol (MEG) is usually injected into producing well heads. The MEG regeneration process is continuously performed at the platform. Scaling problems usually occur due to the presence of chlorides and carbonates. This work presents salt solubility data for the aqueous system with strontium carbonate, MEG and carbon dioxide. A specific analytical method was developed. Thus, experimental data for strontium carbonate (SrCO3) solubility at various carbon dioxide pressures are reported. Solubilities of SrCO3 in water were measured from 760 to 1610 mmHg at 278.15. 288.15. 298.15 and 323.15 K. For the mixed solvent (ms) conditions, solubilities were measured at 298.15 K and four isobars, i.e., 760, 1210, 1410 and 1520 mmHg. Experimental data were correlated and demonstrated to be accurate for thermodynamic modeling and process simulation.