cometadata/datacite-titles-descriptions-related-identifiers huggingface dataset:
DOI: 10.6084/m9.figshare.19902180
title: Anaerobic treatment of the domestic sewer for fertirrigation

description: Abstract The utilization of treated sewage for agricultural purposes means saving of fertilizer and water of good quality, therefore, it may seen as an alternative in its scarcity. Several treatment processes have been developed to produce an effluent with a suitable quality for fertirrigation, while avoiding contamination of the environment with pathogens that may cause serious public health problems and may affect workers consumers of and agricultural product. This research had as its objective to treat sewage in a UASB reactor followed by an anaerobic filter with the aim of obtaining an adequate effluent for agricultural reuse. The filter effluent contained suficiente macro and micro nutrients to grow most crops under the local conditions of the semi arid region. However the concentration of thermo tolerant Coliforms was above the recommend maximum by the WHO, while no helminth eggs were observed in the effluent. Hence the effluent could only be used for restricted irrigation.
DOI: 10.6084/m9.figshare.19902180.v1
title: Anaerobic treatment of the domestic sewer for fertirrigation

description: Abstract The utilization of treated sewage for agricultural purposes means saving of fertilizer and water of good quality, therefore, it may seen as an alternative in its scarcity. Several treatment processes have been developed to produce an effluent with a suitable quality for fertirrigation, while avoiding contamination of the environment with pathogens that may cause serious public health problems and may affect workers consumers of and agricultural product. This research had as its objective to treat sewage in a UASB reactor followed by an anaerobic filter with the aim of obtaining an adequate effluent for agricultural reuse. The filter effluent contained suficiente macro and micro nutrients to grow most crops under the local conditions of the semi arid region. However the concentration of thermo tolerant Coliforms was above the recommend maximum by the WHO, while no helminth eggs were observed in the effluent. Hence the effluent could only be used for restricted irrigation.
DOI: 10.6084/m9.figshare.19902181
title: Influence of wastewater available in the soil and nitrogen manuring on brown cotton

description: Abstract An experiment was carried out in a greenhouse of the Center of Technology of Natural Resources of the Federal University of Campina Grande, Paraíba state, aiming to verify the effect of water levels in the soil (25, 50, 75 and 100% of the available water in the soil), using treated urban wastewater and of tap water, and of doses of nitrogen (0, 150, 300 and 450 kg ha-1) on the water consumption of the crop, plant height, foliar area and biomass of the cotton of brown fiber, variety BRS 200 (Gossypium hirsutum L.). Randomized blocks design was used in mixed factorial scheme (4 x 4) + 1, plus a control irrigated with water of provisioning and receiving 300 kg N ha-1, with three replications. The ETc, height, foliar area and the biomass were influenced in a significant way by the doses of nitrogen, to the 100 days after the emergency. The levels of available water in the soil affected only the ETc and the production of biomass of the aerial part.
DOI: 10.6084/m9.figshare.19902181.v1
title: Influence of wastewater available in the soil and nitrogen manuring on brown cotton

description: Abstract An experiment was carried out in a greenhouse of the Center of Technology of Natural Resources of the Federal University of Campina Grande, Paraíba state, aiming to verify the effect of water levels in the soil (25, 50, 75 and 100% of the available water in the soil), using treated urban wastewater and of tap water, and of doses of nitrogen (0, 150, 300 and 450 kg ha-1) on the water consumption of the crop, plant height, foliar area and biomass of the cotton of brown fiber, variety BRS 200 (Gossypium hirsutum L.). Randomized blocks design was used in mixed factorial scheme (4 x 4) + 1, plus a control irrigated with water of provisioning and receiving 300 kg N ha-1, with three replications. The ETc, height, foliar area and the biomass were influenced in a significant way by the doses of nitrogen, to the 100 days after the emergency. The levels of available water in the soil affected only the ETc and the production of biomass of the aerial part.
DOI: 10.6084/m9.figshare.19902186
title: Do Advertising Pieces that Portray Brazilian Jeitinho Influence Dishonest Behavior?

description: Abstract This research aimed at investigating whether watching Brazilian advertising pieces that portray a sociocultural behavioral pattern called Brazilian jeitinho would influence participant’s subsequent behavior. One carried out an experiment in which 200 subjects watched and assessed three advertisement pieces. Upon recruitment, participants were informed that they would be taking part in a raffle for a gift card. The number of tickets received per participant was defined by a die-under-cup task. The more tickets they obtained, the higher the chance to receive the prize, providing an incentive to cheat. Afterwards, respondents took part in a task that defined the number of tickets that each would receive to participate in the raffle. Independent variables consisted in the manipulation of priming of jeitinho (video content: jeitinho or neutral) and privacy of the task (with or without privacy). On the other hand, the dependent variable consisted in the result obtained when participants rolled the dices that defined the number of tickets. One found a significant difference between the groups in which privacy was manipulated, indicating that the groups that performed the task aimed at measuring dishonesty with privacy actually tended to report lower values than the ones actually obtained, entailing an effect of contrast. This finding suggests that the implementation of public policies that utilize propaganda that portrays Brazilian jeitinho could reduce engagement in dishonest behavior among Brazilians.
DOI: 10.6084/m9.figshare.19902186.v1
title: Do Advertising Pieces that Portray Brazilian Jeitinho Influence Dishonest Behavior?

description: Abstract This research aimed at investigating whether watching Brazilian advertising pieces that portray a sociocultural behavioral pattern called Brazilian jeitinho would influence participant’s subsequent behavior. One carried out an experiment in which 200 subjects watched and assessed three advertisement pieces. Upon recruitment, participants were informed that they would be taking part in a raffle for a gift card. The number of tickets received per participant was defined by a die-under-cup task. The more tickets they obtained, the higher the chance to receive the prize, providing an incentive to cheat. Afterwards, respondents took part in a task that defined the number of tickets that each would receive to participate in the raffle. Independent variables consisted in the manipulation of priming of jeitinho (video content: jeitinho or neutral) and privacy of the task (with or without privacy). On the other hand, the dependent variable consisted in the result obtained when participants rolled the dices that defined the number of tickets. One found a significant difference between the groups in which privacy was manipulated, indicating that the groups that performed the task aimed at measuring dishonesty with privacy actually tended to report lower values than the ones actually obtained, entailing an effect of contrast. This finding suggests that the implementation of public policies that utilize propaganda that portrays Brazilian jeitinho could reduce engagement in dishonest behavior among Brazilians.
DOI: 10.6084/m9.figshare.19902190
title: Evaluation of physicochemical properties and viability of starter culture of liquid cheese whey-based frozen yogurts supplemented with inulin

description: ABSTRACT: The study aimed to analyze the physicochemical properties and starter culture viability of frozen yogurts produced with liquid cheese whey (LCW) and inulin at different proportions (F0: 66% LCW and 0% inulin; F1: 65% LCW and 1% inulin; F2: 64% LCW and 2% inulin; F3: 62% LCW and 4% inulin). Results demonstrated that the frozen yogurt F3 presented higher total solids and carbohydrates levels. LCW and inulin contributed to the overrun increase (11.8-18.2%) but did not interfere significantly in the retardation of the melting rate and range in the samples’ hardness. Over the storage time, formulation F3 showed lower pH and higher titratable acidity. However, from the sixtieth day of storage, the formulations of frozen yogurts varied in the pH and titratable acidity profile associated with the decline in the viability of starter cultures. Even so, the inulin supplementation positively affected the strains’ viability during storage. Based on our data, the formulation F3 presented better nutritional value, physicochemical characteristics, and stability over the storage period.
DOI: 10.6084/m9.figshare.19902190.v1
title: Evaluation of physicochemical properties and viability of starter culture of liquid cheese whey-based frozen yogurts supplemented with inulin

description: ABSTRACT: The study aimed to analyze the physicochemical properties and starter culture viability of frozen yogurts produced with liquid cheese whey (LCW) and inulin at different proportions (F0: 66% LCW and 0% inulin; F1: 65% LCW and 1% inulin; F2: 64% LCW and 2% inulin; F3: 62% LCW and 4% inulin). Results demonstrated that the frozen yogurt F3 presented higher total solids and carbohydrates levels. LCW and inulin contributed to the overrun increase (11.8-18.2%) but did not interfere significantly in the retardation of the melting rate and range in the samples’ hardness. Over the storage time, formulation F3 showed lower pH and higher titratable acidity. However, from the sixtieth day of storage, the formulations of frozen yogurts varied in the pH and titratable acidity profile associated with the decline in the viability of starter cultures. Even so, the inulin supplementation positively affected the strains’ viability during storage. Based on our data, the formulation F3 presented better nutritional value, physicochemical characteristics, and stability over the storage period.
DOI: 10.6084/m9.figshare.19902192
title: Humic acid and nitrogen dose application in corn crop under alkaline soil conditions

description: ABSTRACT Humic acid (HA), as a bio-stimulant and a major component of organic matter (OM), can improve plant physiology, soil fertility, and nutrient availability, mainly in low OM soils. Nitrogen (N) is one of the most important nutrients that affect several metabolic and biochemical activities, leading to improved plant development. This study was conducted to investigate the combined effect of HA and N doses on soil organic matter (SOM) and total N concentration, N uptake, corn growth, and grain yield under conventional tillage at Peshawar, Pakistan. Treatments were tested in a randomized block design with four replicates arranged in a factorial scheme 3 × 4 + 1. The respective doses of HA (1.5, 3,0 and 4.5 kg ha-1) were applied at the corn sowing, whereas N doses (80, 120, 160, and 200 kg ha-1) were applied in three splits (1/3 at sowing, 1/3 at the V5 stage, and remaining 1/3 at the tasselling stage) with one control (no HA and N). The application of HA, regardless of the applied doses, had positive effects on SOM, N concentration, N uptake, corn development, and grain yield. However, the application of 4.5 kg ha-1 of HA was the most effective in promoting SOM (0.83%) and total N (0.31%), shoot biomass (10610 kg ha-1), N uptake (1.13%), and grain yield (3780 kg ha-1), even when combined with the N doses of 80, 120 and 160 kg N ha-1. Increasing N doses positively influenced SOM, N concentration, N uptake, and corn growth. The greatest grain yield was obtained at 150 kg ha-1 of N regardless of HA applied doses.
DOI: 10.6084/m9.figshare.19902192.v1
title: Humic acid and nitrogen dose application in corn crop under alkaline soil conditions

description: ABSTRACT Humic acid (HA), as a bio-stimulant and a major component of organic matter (OM), can improve plant physiology, soil fertility, and nutrient availability, mainly in low OM soils. Nitrogen (N) is one of the most important nutrients that affect several metabolic and biochemical activities, leading to improved plant development. This study was conducted to investigate the combined effect of HA and N doses on soil organic matter (SOM) and total N concentration, N uptake, corn growth, and grain yield under conventional tillage at Peshawar, Pakistan. Treatments were tested in a randomized block design with four replicates arranged in a factorial scheme 3 × 4 + 1. The respective doses of HA (1.5, 3,0 and 4.5 kg ha-1) were applied at the corn sowing, whereas N doses (80, 120, 160, and 200 kg ha-1) were applied in three splits (1/3 at sowing, 1/3 at the V5 stage, and remaining 1/3 at the tasselling stage) with one control (no HA and N). The application of HA, regardless of the applied doses, had positive effects on SOM, N concentration, N uptake, corn development, and grain yield. However, the application of 4.5 kg ha-1 of HA was the most effective in promoting SOM (0.83%) and total N (0.31%), shoot biomass (10610 kg ha-1), N uptake (1.13%), and grain yield (3780 kg ha-1), even when combined with the N doses of 80, 120 and 160 kg N ha-1. Increasing N doses positively influenced SOM, N concentration, N uptake, and corn growth. The greatest grain yield was obtained at 150 kg ha-1 of N regardless of HA applied doses.
DOI: 10.6084/m9.figshare.19902196
title: Characterization of disposable effluent from filters washing at a water treatment plant aiming its reuse

description: Abstract This paper deals with the characterization of the disposable liquid effluent (supernatant from sludge ponds and water from filter washing) at the ETA/Gramame (water treatment plant) in João Pessoa, Paraíba State, aiming at its reuse in the treatment process. The results obtained showed that the physicochemical characteristics of effluent had behavior similar to original natural water from the Gramame River impounded at the ETA/Gramame, with the exception of aluminium, which had high concentration in the effluent. Thus, the reuse of water volumes employed for washing filters and cleaning decanters in an ETA (water treatment plant) must be under more effective control when aluminium sulphate is added to the water treatment process.
DOI: 10.6084/m9.figshare.19902196.v1
title: Characterization of disposable effluent from filters washing at a water treatment plant aiming its reuse

description: Abstract This paper deals with the characterization of the disposable liquid effluent (supernatant from sludge ponds and water from filter washing) at the ETA/Gramame (water treatment plant) in João Pessoa, Paraíba State, aiming at its reuse in the treatment process. The results obtained showed that the physicochemical characteristics of effluent had behavior similar to original natural water from the Gramame River impounded at the ETA/Gramame, with the exception of aluminium, which had high concentration in the effluent. Thus, the reuse of water volumes employed for washing filters and cleaning decanters in an ETA (water treatment plant) must be under more effective control when aluminium sulphate is added to the water treatment process.
DOI: 10.6084/m9.figshare.19902205
title: Growth and absorption of nutrients of banana plants under irrigation with saline Waters

description: Abstract It was conducted an experiment in greenhouse on the banana plant, aiming to verify the behavior of its growing components under two turns of the salt water irrigation, at the CECAUFAL. It was used vases filled with 16kg of soil (dystrophic yellow argyleous), irrigated with distillated water showing as electric conductivity the values of 0,2, 1,0, 2,0 and 2,4 dS m-1, using the gravimetric method. It was observed that there was a reduction of the growth componentes and of the P content, and an increase of the contents the Na and K with an increasing of the electric conductivity.
DOI: 10.6084/m9.figshare.19902205.v1
title: Growth and absorption of nutrients of banana plants under irrigation with saline Waters

description: Abstract It was conducted an experiment in greenhouse on the banana plant, aiming to verify the behavior of its growing components under two turns of the salt water irrigation, at the CECAUFAL. It was used vases filled with 16kg of soil (dystrophic yellow argyleous), irrigated with distillated water showing as electric conductivity the values of 0,2, 1,0, 2,0 and 2,4 dS m-1, using the gravimetric method. It was observed that there was a reduction of the growth componentes and of the P content, and an increase of the contents the Na and K with an increasing of the electric conductivity.
DOI: 10.6084/m9.figshare.19902207
title: Saline stress in maize plants: I - Anionic macronutrients and their relationships with chloride

description: Abstract Aiming at the evaluation of the soil salinity effects upon the mineral nutrition of the maize (UFVM 100 cv.), an experiment was conducted in drainage lysimeters, under greenhouse conditions. A completely randomized design was used with seven treatments: one irrigated with fresh water without leaching and six irrigated with saline water of 1.2 dS m-1 with leaching fractions of 40, 30, 20, 15, 10 and 5% of the irrigation depth applied, and three replicaticns. The effects of the soil salinity upon the mineral nutrition of the maize crop were evaluated, by determining the leaf content of the anionic macronutrients and their relationships with Cl at 120 days after planting, at the phenological phase corresponding to the physiological maturation. For the evaluated variety, the increase in the soil salinity elevated the leaf contents of chloride and the relations Cl/N, Cl/P and Cl/S, followed by reduction in the contents of nitrogen, phosphorus and sulfur.
DOI: 10.6084/m9.figshare.19902207.v1
title: Saline stress in maize plants: I - Anionic macronutrients and their relationships with chloride

description: Abstract Aiming at the evaluation of the soil salinity effects upon the mineral nutrition of the maize (UFVM 100 cv.), an experiment was conducted in drainage lysimeters, under greenhouse conditions. A completely randomized design was used with seven treatments: one irrigated with fresh water without leaching and six irrigated with saline water of 1.2 dS m-1 with leaching fractions of 40, 30, 20, 15, 10 and 5% of the irrigation depth applied, and three replicaticns. The effects of the soil salinity upon the mineral nutrition of the maize crop were evaluated, by determining the leaf content of the anionic macronutrients and their relationships with Cl at 120 days after planting, at the phenological phase corresponding to the physiological maturation. For the evaluated variety, the increase in the soil salinity elevated the leaf contents of chloride and the relations Cl/N, Cl/P and Cl/S, followed by reduction in the contents of nitrogen, phosphorus and sulfur.
DOI: 10.6084/m9.figshare.19902210
title: Quality of raw water in the Guandu Basin of Rio de Janeiro state during water crisis of 2020

description: Abstract At the beginning of 2020, about 9 million inhabitants of the Metropolitan Region of Rio de Janeiro, dependent on the Guandu Basin, experienced a water-supply crisis when their water tasted badly and gave off an odor. This work presents the results of analyses of the sanitary quality of raw water in this system at two different times during the water crisis, with respect to the presence of cyanobacteria found using metagenomic studies, and cyanotoxins, microcystin (MC) and saxitoxin (SXT) quantified by ELISA. Analyses of raw water quality parameters were carried out through the determination of total coliforms and Escherichia coli levels and some physical-chemical parameters. The raw water collected in both periods presented levels of Escherichia coli levels above the maximum allowed values (MAV) described in Resolution 357/2000 of the National Environmental Agency, as well as the levels of MC in a filter sample. The physical-chemical parameters analyzed and the SXT levels were in accordance with this resolution. The most abundant cyanobacterial genus in the critical period was Planktothricoides sp. Therefore, it is necessary to implement basic sanitation in cities upstream from the point of capture of raw water from this source, so that events similar to those that occurred in the 2020 water crisis do not recur.
DOI: 10.6084/m9.figshare.19902210.v1
title: Quality of raw water in the Guandu Basin of Rio de Janeiro state during water crisis of 2020

description: Abstract At the beginning of 2020, about 9 million inhabitants of the Metropolitan Region of Rio de Janeiro, dependent on the Guandu Basin, experienced a water-supply crisis when their water tasted badly and gave off an odor. This work presents the results of analyses of the sanitary quality of raw water in this system at two different times during the water crisis, with respect to the presence of cyanobacteria found using metagenomic studies, and cyanotoxins, microcystin (MC) and saxitoxin (SXT) quantified by ELISA. Analyses of raw water quality parameters were carried out through the determination of total coliforms and Escherichia coli levels and some physical-chemical parameters. The raw water collected in both periods presented levels of Escherichia coli levels above the maximum allowed values (MAV) described in Resolution 357/2000 of the National Environmental Agency, as well as the levels of MC in a filter sample. The physical-chemical parameters analyzed and the SXT levels were in accordance with this resolution. The most abundant cyanobacterial genus in the critical period was Planktothricoides sp. Therefore, it is necessary to implement basic sanitation in cities upstream from the point of capture of raw water from this source, so that events similar to those that occurred in the 2020 water crisis do not recur.
DOI: 10.6084/m9.figshare.19902211
title: Organic fertilization and forms of application in Allium cepa growth, yield and bulb quality

description: ABSTRACT Onion is the third most cultivated vegetable in Brazil, and organic fertilization can increase its productivity. The objective of this study was to evaluate the effect of doses of cattle manure and forms of applications on the growth, yield and bulb quality of onion cv. IPA-11 Vale Ouro. The experimental design used was randomized blocks, with four replicates, in a 6 × 2 factorial scheme, corresponding to six doses of cattle manure (0; 10; 20; 30; 40 and 50 t ha-1) and two forms of application (incorporated and topdressing). The onion growth increased with cattle manure doses. Using cattle manure fertilization is feasible for the production of onion, however high doses, regardless of the form of application are not recommended. Incorporated manure increases the leaf concentrations of primary macronutrients in onion and promotes 15 and 20% increment in total and marketable yield, respectively. The cattle manure incorporated into the soil increased the production of bulbs within the class of greater acceptance by consumers.