cometadata/datacite-titles-descriptions-related-identifiers huggingface dataset:
DOI: 10.6084/m9.figshare.9276464.v1
title: Ethnobotany of native cacti in the northeast region of Brazil: can traditional use influence availability?

description: ABSTRACT Documenting the uses of native species of Cactaceae in Northeast Brazil contributes to understanding how the inhabitants of this seasonally dry and low-rainfall region have used these resources, considering that some species of this family of Cactaceae are among the most endangered in the world. The aim of this research was to determine which species of Cactaceae occur in the study area and investigate the knowledge and recurrent uses associated with them, as well as the local availability of the species most used by residents. Ethnobotanical data were collected through semi-structured interviews with 59 heads of households. Guided tours were conducted for data collection and subsequent taxonomic identification of species. Use value and availability were determined for the most-used species in two predefined areas. Six native species were recorded and classified into eight categories. Columnar species had higher use values, while fodder and construction were the most cited use categories. Cereus jamacaru DC was the most-used species, with consequent interference in its availability due to significant reduction in the number of cladodes as a result of their constant removal from plants in areas of direct use for the purpose of fodder.
DOI: 10.6084/m9.figshare.9276458
title: Factors driving seed dispersal in a Neotropical river-floodplain system

description: ABSTRACT Dispersal is a key process affecting the diversity of natural communities. We addressed hydrochory of wetland plant seeds in the Middle Paraná River floodplain. We first studied seed dispersal by drifting macrophytes in the Paraná River main channel (MC), in a high discharge secondary channel (HD) and in two low discharge channels (LD) during an extraordinary flood. We then experimentally analyzed the effect of standing (SW) and moving water (MW) on seed buoyancy of different plant communities. We recorded seeds of 27 taxa distributed in 12 families. Taxa richness ranged from 17 in LD to 25 in MC, and included seeds of terrestrial, palustrine and aquatic plants. River discharge did not affect seed richness and density, which was probably associated with a homogenization process caused by the flood. Seed buoyancy significantly differed between water movement treatments independently of the source community, lasting longer in SW than in MW. Our results suggest that drifting macrophytes contribute to seed dispersal of several communities in the Middle Paraná River, and probably over long distances. Furthermore, seed buoyancy might be more important for surficial dispersal in low-energy systems, where subaqueous dispersal may be difficult due to the lack of current.
DOI: 10.6084/m9.figshare.9276461.v1
title: Pollen morphology of the Brazilian species of Bernardia Houst. ex Mill. and Tragia L. (Euphorbiaceae, Acalyphoideae)

description: ABSTRACT Bernardia and Tragia are the largest genera of the tribes Bernardieae and Plukenetieae (Euphorbiaceae,), with 68 and 125 species, respectively. Very few palynological studies have focused specifically on these genera in spite of the great pollen diversity observed in the family. The present study analyzed the pollen morphology of the Brazilian species of Bernardia and Tragia to identify diagnostic characteristics that could aid in their taxonomic circumscription. The pollen grains of 11 species of Bernardia and five of Tragia were obtained from specimens deposited in the HRB, HUEFS, PEUFR, RB and UFP herbaria, and were analyzed using light and scanning electron microscopy. The analyzed species had small- to medium-sized pollen grains in monads, with shapes from prolate to subprolate. The most significant differences were observed in aperture type and exine ornamentation. The pollen grains of Bernardia are tricolporate, with aperture margins varying from narrow to wide or with just slightly evident margins, and the exine varying between microreticulate and microreticulate-perforate. The pollens of Tragia are tricolpate with the exine varying between intectate pilate and verrucate. Some species of both genera could be diagnosed based on unique pollen characters, and four distinct morphological groups of Bernardia and two of Tragia were observed.
DOI: 10.6084/m9.figshare.9276452
title: Cleaner production options for a small bakery

description: Abstract The implementing of a Cleaner Production program (CP) in the bakery and confectionery sector, allows the change of its industrial process through of the development of an eco-efficient system. The goals of this work were to generate CP options for a small bakery, to make the employees aware of environmental issues in order to better use raw materials and reduce waste generation, analyze the solid waste generated in the establishment, and provide a better management for a future implementation of the CP program. The methodology of implementation was based on the widespread for CNTL/SENAI, taking into account three stages with various tasks being developed in each of them. It was noted that the establishment did not have studied selective collecting or outside or inside the establishment. The results obtained were mainly good practices of CP in the manufacture of products, separation of recyclable waste from non-recyclable ones for commercialization and adequate disposal, purchase of raw materials with larger packages, and the adequacy of bread forms. Considering that the most significant generation of waste is organic, the composting was suggested as a way of recovering this waste.
DOI: 10.6084/m9.figshare.9276455
title: The relationship between plant density and survival to water stress in seedlings of a legume tree

description: ABSTRACT Competition for soil water is one of the major processes that drive the assembly of plant communities, particularly in regions subjected to long dry seasons. The relationship between plant density and soil water competition has strong, but poorly understood, practical implications for population dynamics, restoration and conservation. We planted seedlings of the pioneer legume tree Senegalia polyphylla in containers and assessed the effects of plant density on their resistance to water stress. We completely eliminated the above-ground parts (stem and shoots) of randomly selected plants at 60-days post-planting in order to create three different densities of seedlings. We saturated the soil of the remaining seedlings and then deprived them of additional water until all seedlings died. We assessed the time elapsed from water suppression to wilting and death of individual plants. We found a strong negative relationship between plant density and time to wilting or death. Seedlings survived water stress 80% longer when density was reduced by two-thirds. Planting in lower densities or reducing density by thinning should be considered as strategies to enhance resistance to water stress in drought-prone regions.
DOI: 10.6084/m9.figshare.9276458.v1
title: Factors driving seed dispersal in a Neotropical river-floodplain system

description: ABSTRACT Dispersal is a key process affecting the diversity of natural communities. We addressed hydrochory of wetland plant seeds in the Middle Paraná River floodplain. We first studied seed dispersal by drifting macrophytes in the Paraná River main channel (MC), in a high discharge secondary channel (HD) and in two low discharge channels (LD) during an extraordinary flood. We then experimentally analyzed the effect of standing (SW) and moving water (MW) on seed buoyancy of different plant communities. We recorded seeds of 27 taxa distributed in 12 families. Taxa richness ranged from 17 in LD to 25 in MC, and included seeds of terrestrial, palustrine and aquatic plants. River discharge did not affect seed richness and density, which was probably associated with a homogenization process caused by the flood. Seed buoyancy significantly differed between water movement treatments independently of the source community, lasting longer in SW than in MW. Our results suggest that drifting macrophytes contribute to seed dispersal of several communities in the Middle Paraná River, and probably over long distances. Furthermore, seed buoyancy might be more important for surficial dispersal in low-energy systems, where subaqueous dispersal may be difficult due to the lack of current.
DOI: 10.6084/m9.figshare.9276446
title: Effects of sertraline in the prevention of low blood pressure in patients undergoing hemodialysis

description: Abstract Introduction: Intradialytic hypotension (IDH) is a major complication of hemodialysis, with a prevalence of about 25% during hemodialysis sessions, causing increased morbidity and mortality. Objective: To study the effects of sertraline to prevent IDH in hemodialysis patients. Methods: This was a double-blind, crossover clinical trial comparing the use of sertraline versus placebo to reduce intradialytic hypotension. Results: Sixteen patients completed the two phases of the study during a 12-week period. The IDH prevalence was 32%. A comparison between intradialytic interventions, intradialytic symptoms, and IDH episodes revealed no statistical difference in the reduction of IDH episodes (p = 0.207) between the two intervention groups. However, the risk of IDH interventions was 60% higher in the placebo group compared to the sertraline group, and the risk of IDH symptoms was 40% higher in the placebo group compared to the sertraline group. Survival analysis using Kaplan-Meier estimator supported the results of this study. Sertraline presented a number needed to treat (NNT) of 16.3 patients to prevent an episode from IDH intervention and 14.2 patients to prevent an episode from intradialytic symptoms. Conclusion: This study suggests that the use of sertraline may be beneficial to reduce the number of symptoms and ID interventions, although there was no statistically significant difference in the blood pressure levels.
DOI: 10.6084/m9.figshare.9276455.v1
title: The relationship between plant density and survival to water stress in seedlings of a legume tree

description: ABSTRACT Competition for soil water is one of the major processes that drive the assembly of plant communities, particularly in regions subjected to long dry seasons. The relationship between plant density and soil water competition has strong, but poorly understood, practical implications for population dynamics, restoration and conservation. We planted seedlings of the pioneer legume tree Senegalia polyphylla in containers and assessed the effects of plant density on their resistance to water stress. We completely eliminated the above-ground parts (stem and shoots) of randomly selected plants at 60-days post-planting in order to create three different densities of seedlings. We saturated the soil of the remaining seedlings and then deprived them of additional water until all seedlings died. We assessed the time elapsed from water suppression to wilting and death of individual plants. We found a strong negative relationship between plant density and time to wilting or death. Seedlings survived water stress 80% longer when density was reduced by two-thirds. Planting in lower densities or reducing density by thinning should be considered as strategies to enhance resistance to water stress in drought-prone regions.
DOI: 10.6084/m9.figshare.9276452.v1
title: Cleaner production options for a small bakery

description: Abstract The implementing of a Cleaner Production program (CP) in the bakery and confectionery sector, allows the change of its industrial process through of the development of an eco-efficient system. The goals of this work were to generate CP options for a small bakery, to make the employees aware of environmental issues in order to better use raw materials and reduce waste generation, analyze the solid waste generated in the establishment, and provide a better management for a future implementation of the CP program. The methodology of implementation was based on the widespread for CNTL/SENAI, taking into account three stages with various tasks being developed in each of them. It was noted that the establishment did not have studied selective collecting or outside or inside the establishment. The results obtained were mainly good practices of CP in the manufacture of products, separation of recyclable waste from non-recyclable ones for commercialization and adequate disposal, purchase of raw materials with larger packages, and the adequacy of bread forms. Considering that the most significant generation of waste is organic, the composting was suggested as a way of recovering this waste.
DOI: 10.6084/m9.figshare.9276437
title: Emotional and behavioral problems: a school-based study in southern Brazil

description: Abstract Introduction Mental health assessment in childhood needs to be carried out within a broader context that includes different factors. Objective To assess the prevalence of emotional and behavioral problems in schoolchildren and associated factors. Method A cross-sectional study was conducted with a school-based sample at 20 schools selected by systematic random sampling. Participants consisted of children aged 7-8 year old and their parents or primary caregivers. The Strengths and Difficulties Questionnaire (SDQ) was used to screen for the presence of emotional and behavioral problems in children. Results A total of 596 dyads were evaluated. The prevalence of emotional and behavioral problems was 30.0% among boys and 28.2% among girls. Hyperactivity/inattention were more prevalent among boys (p=0.015). Belonging to economically disadvantaged strata increased the likelihood of emotional and behavioral problems among schoolchildren by 71% (p=0.001), while having parents or caregivers with mental disorder increased by 2.2 times that probability (p&lt;0.001). Conclusion: Our findings showed a high prevalence of emotional and behavioral problems among schoolchildren, as well as the influence of economic conditions and of the mental health of parents and caregivers on child mental health.
DOI: 10.6084/m9.figshare.9276443
title: Effectiveness of psycho-educational counseling on anxiety in preeclampsia

description: Abstract Introduction Preeclampsia is a serious complication during pregnancy that not only influences maternal and fetal physical health, but also has maternal mental health outcomes such as anxiety. Prenatal anxiety has negative short- and long-term effects on pre- and postpartum maternal mental health, delivery, and mental health in subsequent pregnancies. Objective To investigate the effectiveness of individual psycho-educational counseling on anxiety in pregnant women with preeclampsia. Methods This was a randomized, intervention-controlled study involving two governmental hospitals in the municipality of Sirjan, Kerman, from January 30 2017 to March 31 2017. A total of 44 pregnant women with preeclampsia were assessed. The women were randomized into two groups: control (n=22) and intervention (n=22). The intervention consisted of two sessions of individual psycho-educational counseling. The level of anxiety was measured using the Spielberger State-Trait Anxiety Inventory (STAI) as pretest before the first session and as posttest after the second session during the hospitalization period. Results There was a significant reduction in the anxiety level after the counselling sessions in the intervention group (p&lt;0.005). In addition, there was a slight increase in the anxiety level in the control group after the study. Conclusion According to the results, psycho-educational counseling can significantly reduce the anxiety level in pregnant women with preeclampsia. Therefore, it is recommended that healthcare providers provide this type of therapeutic intervention for pregnant women after hospitalization, in order to reduce their anxiety level and its subsequent negative outcomes. Clinical trial registration: IRCT2017082029817N3.
DOI: 10.6084/m9.figshare.9276446.v1
title: Effects of sertraline in the prevention of low blood pressure in patients undergoing hemodialysis

description: Abstract Introduction: Intradialytic hypotension (IDH) is a major complication of hemodialysis, with a prevalence of about 25% during hemodialysis sessions, causing increased morbidity and mortality. Objective: To study the effects of sertraline to prevent IDH in hemodialysis patients. Methods: This was a double-blind, crossover clinical trial comparing the use of sertraline versus placebo to reduce intradialytic hypotension. Results: Sixteen patients completed the two phases of the study during a 12-week period. The IDH prevalence was 32%. A comparison between intradialytic interventions, intradialytic symptoms, and IDH episodes revealed no statistical difference in the reduction of IDH episodes (p = 0.207) between the two intervention groups. However, the risk of IDH interventions was 60% higher in the placebo group compared to the sertraline group, and the risk of IDH symptoms was 40% higher in the placebo group compared to the sertraline group. Survival analysis using Kaplan-Meier estimator supported the results of this study. Sertraline presented a number needed to treat (NNT) of 16.3 patients to prevent an episode from IDH intervention and 14.2 patients to prevent an episode from intradialytic symptoms. Conclusion: This study suggests that the use of sertraline may be beneficial to reduce the number of symptoms and ID interventions, although there was no statistically significant difference in the blood pressure levels.
DOI: 10.6084/m9.figshare.9276443.v1
title: Effectiveness of psycho-educational counseling on anxiety in preeclampsia

description: Abstract Introduction Preeclampsia is a serious complication during pregnancy that not only influences maternal and fetal physical health, but also has maternal mental health outcomes such as anxiety. Prenatal anxiety has negative short- and long-term effects on pre- and postpartum maternal mental health, delivery, and mental health in subsequent pregnancies. Objective To investigate the effectiveness of individual psycho-educational counseling on anxiety in pregnant women with preeclampsia. Methods This was a randomized, intervention-controlled study involving two governmental hospitals in the municipality of Sirjan, Kerman, from January 30 2017 to March 31 2017. A total of 44 pregnant women with preeclampsia were assessed. The women were randomized into two groups: control (n=22) and intervention (n=22). The intervention consisted of two sessions of individual psycho-educational counseling. The level of anxiety was measured using the Spielberger State-Trait Anxiety Inventory (STAI) as pretest before the first session and as posttest after the second session during the hospitalization period. Results There was a significant reduction in the anxiety level after the counselling sessions in the intervention group (p&lt;0.005). In addition, there was a slight increase in the anxiety level in the control group after the study. Conclusion According to the results, psycho-educational counseling can significantly reduce the anxiety level in pregnant women with preeclampsia. Therefore, it is recommended that healthcare providers provide this type of therapeutic intervention for pregnant women after hospitalization, in order to reduce their anxiety level and its subsequent negative outcomes. Clinical trial registration: IRCT2017082029817N3.
DOI: 10.6084/m9.figshare.9276428
title: Genetic diversity of long-established populations of Elaeis guineensis jacquin (Arecaceae)

description: Abstract This study aimed to estimate the genetic diversity of three Elaeis guineensis populations in Rio Grande do Norte state, as well as to verify the decreases in effective population size. The population with the highest polymorphism was MAT (Mata) with+ 57 loci (72%), followed by RIA (Riacho) with 54 loci (68%) and HOR (Horta) with 34 loci (43.03%). The RIA population was shown to be the most genetically diverse, with Nei (h = 0.28) and Shannon (I = 0.41) diversity indices. There was high genetic differentiation among populations (AMOVA, analysis of molecular variance = 42%), which was separated into three distinct genetic groups according to a Bayesian analysis. There was a significant population decrease (P &lt; 0.05) for the HOR population in the IAM (infinite allele model) and SMM (stepwise mutation model), and for the RIA population in the IAM. The data obtained in this study may support ex-situ conservation projects for Elaeis guineensis, contributing to the selection of genotypes and their sustainable use.
DOI: 10.6084/m9.figshare.9276431
title: The effect of organic loading rate’s natural variation on the biogas yields from swine manure digestion at different hydraulic retention time

description: ABSTRACT The study of anaerobic digesters at laboratory focuses on the control of certain parameters that are not so easy to control in the field, which makes it difficult to process scale-up. One example is the Organic Loading Rate. To swine manure, this parameter can change daily due to weather conditions, management practices, feeding and others. In order to verify the impact of this fluctuation on biogas yield, the behavior of a CSTR reactor was analyzed in two different Hydraulic Retention Times (20 and 30 days) for a total period of 180 days. The result demonstrated that the increase of OLR result in a decrease of treatment efficiency as well as biogas yields. The study with HRT of 20 days had a better response to changes in organic load.
DOI: 10.6084/m9.figshare.9276437.v1
title: Emotional and behavioral problems: a school-based study in southern Brazil

description: Abstract Introduction Mental health assessment in childhood needs to be carried out within a broader context that includes different factors. Objective To assess the prevalence of emotional and behavioral problems in schoolchildren and associated factors. Method A cross-sectional study was conducted with a school-based sample at 20 schools selected by systematic random sampling. Participants consisted of children aged 7-8 year old and their parents or primary caregivers. The Strengths and Difficulties Questionnaire (SDQ) was used to screen for the presence of emotional and behavioral problems in children. Results A total of 596 dyads were evaluated. The prevalence of emotional and behavioral problems was 30.0% among boys and 28.2% among girls. Hyperactivity/inattention were more prevalent among boys (p=0.015). Belonging to economically disadvantaged strata increased the likelihood of emotional and behavioral problems among schoolchildren by 71% (p=0.001), while having parents or caregivers with mental disorder increased by 2.2 times that probability (p&lt;0.001). Conclusion: Our findings showed a high prevalence of emotional and behavioral problems among schoolchildren, as well as the influence of economic conditions and of the mental health of parents and caregivers on child mental health.