Mercury concentrations and differences in isotopic niches of fish from upstream and downstream of an Amazon reservoir dam.

Reservoir construction promotes many environmental impacts, including the enhancement of mercury concentrations in fish. The processes that can influence mercury concentrations in fish in Amazonian reservoirs are still little explored in depth, especially when we consider the possible particularities of the ecosystems in question. This study aims to investigate how mercury concentrations in fish could be influenced by the Tucuruí dam, considering possible changes in their feeding and trophic position according to the dam position (up or downstream). Fish were sampled upstream and downstream of the Tucuruí reservoir, and total mercury (THg) and stable isotopes of carbon and nitrogen (δ15N and δ13C) were measured in muscles. We observed three different Hg bioaccumulation patterns influenced by the dam. These differences occurred due to species trophic niche changes corroborated by the isotope analysis. Higher THg concentrations downstream compared to those upstream ones were only observed for Geophagus proximus. On the contrary, Plagioscion squamosissimus, from downstream, presented lower concentrations than upstream ones. The isotopic niche of these two species presented different changes according to the sampled site. THg biomagnification was higher upstream compared to downstream, considering that the regression slope was approximately two times higher upstream versus downstream. THg concentrations in fish were explained by the differences in their feeding habits according to their location in relation to the dam. The difference in THg biomagnification was able to reflect differences in structure of the food web chain in ecosystems under the dam's influence.

Non-structural carbohydrate concentrations in tree organs vary across biomes and leaf habits, but are independent of the fast-slow plant economic spectrum.

Carbohydrate reserves play a vital role in plant survival during periods of negative carbon balance. Under a carbon-limited scenario, we expect a trade-offs between carbon allocation to growth, reserves, and defense. A resulting hypothesis is that carbon allocation to reserves exhibits a coordinated variation with functional traits associated with the 'fast-slow' plant economics spectrum. We tested the relationship between non-structural carbohydrates (NSC) of tree organs and functional traits using 61 angiosperm tree species from temperate and tropical forests with phylogenetic hierarchical Bayesian models. Our results provide evidence that NSC concentrations in stems and branches are decoupled from plant functional traits. while those in roots are weakly coupled with plant functional traits. In contrast, we found that variation between NSC concentrations in leaves and the fast-slow trait spectrum was coordinated, as species with higher leaf NSC had trait values associated with resource conservative species, such as lower SLA, leaf N, and leaf P. We also detected a small effect of leaf habit on the variation of NSC concentrations in branches and roots. Efforts to predict the response of ecosystems to global change will need to integrate a suite of plant traits, such as NSC concentrations in woody organs, that are independent of the 'fast-slow' plant economics spectrum and that capture how species respond to a broad range of global change drivers.

Empathic attitude of dental students from a peruvian public University associated with reading Habit: a regression analysis / Actitud empática de los estudiantes de odontología de una Universidad pública peruana asociado al hábito de lectura: un análisis de regresión

Abstract The present study aims to identify the empathic attitude of dental students from a Peruvian public university, about their reading habits, as well as the level of studies and other sociodemographic variables. 226 first-, fourth-, and sixth-year students registered in the academic year 2022 were enrolled in the study. The Jefferson Empathy scale, which included 20 items, was used with a Likert scale ranging from 1 to 7, i.e., from totally disagree to totally agree. A file containing questions about the sociodemographic data registry was prepared together with the Jefferson Empathy questionnaire. It was found that the profile of the students was mainly feminine, and the average age was 22 years; they came from Lima. They had the habit of reading and a little more than half of the group did not participate in sports activities. The "adequate" level of empathy was the highest (51.77%). By dichotomizing the response variable, it was found that adequate empathy was related to the habit of reading, especially reading dental books. Dental students from this public university mostly have an adequate level of empathy; it is independent of the sociodemographic variables but is related to reading habits.

Resumen En el presente estudio se planteó identificar la actitud empática de los estudiantes de odontología de una universidad pública peruana en relación al hábito de lectura así como al nivel de estudios y variables sociodemográficas. Se consideró a 226 estudiantes de primero, cuarto y sexto año matriculados en el año académico 2022. Se utilizó la escala de empatía de Jefferson que consta de 20 ítems, y cuyas categorías de respuesta val del 1 al 7 que significa totalmente en desacuerdo a totalmente de acuerdo. Se elaboró una ficha que además contenía una primera parte para llenar de acuerdo a sus datos sociodemográficos. Se encontró que el perfil de los estudiantes perteneció al sexo femenino, con una media de 22 años, procedían de Lima, presentaban el hábito de lectura y un poco más de la mitad del grupo no realizan actividades deportivas. El nivel de empatía adecuado fue el más alto (51.77%). Al dicotomizar la variable respuesta se encontro que la empatía adecuada estuvo relacionada con el hábito de lectura y con la lectura de libros de odontología. Se concluye que los estudiantes de odontología de esta universidad pública tienen mayormente nivel de empatía adecuado y que es independiente de las variables sociodemográficas pero se encuentra relacionado a los hábitos de lectura.

Corrigendum: Geographical and life-history traits associated with low and high species richness across angiosperm families.

[This corrects the article DOI: 10.3389/fpls.2023.1276727.].

Frecuencia de enfermedades periodontales y características clínicas de pacientes atendidos en la Cátedra de Periodoncia de la Universidad Autónoma de Asunción

Las enfermedades periodontales son consideradas entre las más comunes entre las patologías bucales. Su frecuencia es cada vez más elevada en la población y existen varias patologías sistémicas y hábitos que empeoran su cuadro clínico. El objetivo de este trabajo fue determinar la frecuencia y características clínicas de pacientes con enfermedades periodontales que acuden a la cátedra de periodoncia en la Universidad Autónoma de Asunción en el período de 2011 al 2019. Estudio Observacional, descriptivo, retrospectivo, se procesaron 477 fichas clínicas de pacientes de la cátedra de Periodoncia de la Universidad Autónoma de Asunción desde el año 2011 al 2019. El tipo de muestreo utilizado fue no probabilístico por conveniencia. De las 477 fichas solo se analizaron 317 pacientes que cumplieron con los criterios de inclusión. Fueron el 56.46 % de sexo femenino y 43,53 % de sexo masculino, la mediana de edad fue de 33 (23-48) años. El 53% los pacientes presentaban periodontitis crónica y comorbilidades como diabetes e hipertensión arterial. Solo el 11,9 % fueron fumadores. En cuanto a los pacientes diabéticos la mayoría eran de sexo femenino y de edad avanzada, presentando como diagnóstico más frecuente la periodontitis crónica. El diagnóstico clínico más frecuente de la población estudiada fue la periodontitis crónica, seguido por la gingivitis.

Periodontal diseases are considered among the most common among oral pathologies. Its frequency is increasingly higher in the population and there are several systemic pathologies and habits that worsen its clinical condition. The objective of this work was to determine the frequency and clinical characteristics of patients with periodontal diseases who attend the periodontics department at the Autonomous University of Asunción in the period from 2011 to 2019. Observational, descriptive, retrospective study, 477 clinical records were processed. of patients from the Department of Periodontics at the Autonomous University of Asunción from 2011 to 2019. The type of sampling used was non-probabilistic for convenience. Of the 477 records, only 317 patients who met the inclusion criteria were analyzed. They were 56.46% female and 43.53% male, the median age was 33 (23-48) years. 53% of the patients had chronic periodontitis and comorbidities such as diabetes and high blood pressure. Only 11.9% were smokers. Regarding diabetic patients, the majority were female and elderly, with chronic periodontitis as the most frequent diagnosis. The most frequent clinical diagnosis of the studied population was chronic periodontitis, followed by gingivitis.

Geographical and life-history traits associated with low and high species richness across angiosperm families.

Introduction: The phenomenal expansion of angiosperms has prompted many investigations into the factors driving their diversification, but there remain significant gaps in our understanding of flowering plant species diversity. Methods: Using the crown age of families from five studies, we used a maximum likelihood approach to classify families as having poor, predicted or high species richness (SR) using strict consensus criteria. Using these categories, we looked for associations between family SR and i) the presence of an inferred familial ancestral polyploidization event, ii) 23 life history and floral traits compiled from previously published datasets and papers, and iii) sexual system (dioecy) or genetically determined self-incompatibility (SI) mating system using an updated version of our own database and iv) geographic distribution using a new database describing the global distribution of plant species/families across realms and biomes and inferred range. Results: We find that more than a third of angiosperm families (65%) had predicted SR, a large proportion (30.2%) were species poor, while few (4.8%) had high SR. Families with poor SR were less likely to have undergone an ancestral polyploidization event, exhibited deficits in diverse traits, and were more likely to have unknown breeding systems and to be found in only one or few biomes and realms, especially the Afrotropics or Australasia. On the other hand, families with high SR were more likely to have animal mediated pollination or dispersal, are enriched for epiphytes and taxa with an annual life history, and were more likely to harbour sporophytic SI systems. Mapping the global distribution of georeferenced taxa by their family DR, we find evidence of regions dominated by taxa from lineages with high vs low SR. Discussion: These results are discussed within the context of the literature describing "depauperons" and the factors contributing to low and high biodiversity in angiosperm clades.

Habits and Persistent Food Restriction in Patients with Anorexia Nervosa: A Scoping Review.

The aetiology of anorexia nervosa (AN) presents a puzzle for researchers. Recent research has sought to understand the behavioural and neural mechanisms of these patients' persistent choice of calorie restriction. This scoping review aims to map the literature on the contribution of habit-based learning to food restriction in AN. PRISMA-ScR guidelines were adopted. The search strategy was applied to seven databases and to grey literature. A total of 35 studies were included in this review. The results indicate that the habit-based learning model has gained substantial attention in current research, employing neuroimaging methods, scales, and behavioural techniques. Food choices were strongly associated with dorsal striatum activity, and habitual food restriction based on the self-report restriction index was associated with clinical impairment in people chronically ill with restricting AN. High-frequency repetitive transcranial magnetic stimulation (HF-rTMS) and Regulating Emotions and Changing Habits (REaCH) have emerged as potential treatments. Future research should employ longitudinal studies to investigate the time required for habit-based learning and analyse how developmental status, such as adolescence, influences the role of habits in the progression and severity of diet-related illnesses. Ultimately, seeking effective strategies to modify persistent dietary restrictions controlled by habits remains essential.

Habit-, reward- and fear-related motivations in alcohol use disorder: A one-year prospective study.

OBJECTIVE: Cross-sectional studies show that habitual use of alcohol is associated with severity of alcohol dependence reflected across a range of domains and lower number of detoxifications in multiple settings. In this study, we investigated whether alcohol use disorder (AUD) patients with greater habitual use of alcohol at baseline showed worse outcomes after one year of follow-up. METHODS: A sample of inpatients with Diagnostic and Statistical Manual of Mental Disorders, Fourth Edition (DSM-IV) alcohol use disorder (AUD) was assessed at baseline (n = 50) and after one year (n = 30). The Habit, Reward, and Fear Scale (HRFS) was employed to quantify affective (fear or reward) and non-affective (habitual) drives for alcohol use, the Alcohol Dependence Scale (ADS) was used to assess clinical outcomes, and the Depression, Anxiety and Stress Scale (DASS-21) was used to quantify and control for associated affective symptoms. RESULTS: There was a significant reduction in the three HRFS scores at the follow-up. Regression analyses demonstrated that greater habit- and fear-related drives at baseline predicted greater decreases in the ADS scores at the endpoint. However, after controlling for age, sex and affective symptoms, only reward and fear were associated with reductions in ADS scores at the end of one year. Prescriptions of naltrexone and antidepressants/benzodiazepines did not predict decreases in reward and fear-related motivations. CONCLUSION: Although we were unable to confirm that habitual subscores at baseline predict worse long-term outcomes among inpatients with AUD, we found that a greater fear and reward motives for the use of alcohol predicted a greater magnitude of improvement in the AUD symptoms after one year. We hope that these findings will help develop new approaches toward AUD treatment and inform models of addiction research.

Dimensions of reading: a study of the beliefs of language and literature preservice teachers.

This study aims to analyze the beliefs that future Language and Literature teachers hold regarding reading. This work is part of a broader research endeavor focused on the reading habits and practices of teachers in training and their role as prospective mediators since the way in which they perceive reading significantly impacts the mediation processes they undertake in their teaching practices to cultivate readers. To achieve these objectives, a multiple case study is conducted, involving interviews with 1st-year students (n = 15), 3rd-year students (n = 15), and 5th-year students (n = 15) enrolled in Language Pedagogy programs across three universities affiliated with the Chilean Council of Rectors. For data analysis, a content analysis approach is employed, supported by NVivo 12. The findings reveal that beliefs about reading primarily fall into two dimensions: academic and personal, with the former exhibiting clearer definition and characterization. This can be attributed to the influence of the disciplines integrated into their education, namely literature and linguistics. In conclusion, it is imperative to address the social dimension of reading during the initial teacher education program, as this aspect is not emphasized by preservice teachers, despite its pivotal role in shaping their identity as reading mediators within the context of their teaching practice.

Trastornos temporomandibulares en adolescentes con hábitos parafuncionales / Temporomandibular disorders in adolescents with parafunctional habits i: en

Introducción: Los trastornos temporomandibulares en adolescentes pueden ser ocasionados por hábitos parafuncionales, que probablemente dan lugar a diferentes manifestaciones en los componentes del sistema estomatognático. Objetivo: Caracterizar a los adolescentes con trastornos temporomandibulares y hábitos parafuncionales según variables epidemiológicas y clínicas. Métodos: Se realizó un estudio observacional, descriptivo y transversal de 74 adolescentes (15-18 años de edad) del Instituto Preuniversitario Antonio Alomá Serrano, perteneciente al área de salud del Policlínico Docente José Martí en Santiago de Cuba, desde noviembre del 2021 hasta marzo del 2022. Resultados: Se halló que 88,1 % de los integrantes de la serie presentaron alteraciones leves, 11,9 %, moderadas y 20,3 % no tuvo ninguna. De los 59 pacientes con trastornos temporomandibulares, 74,6 % eran del sexo femenino, con prevalencia de las alteraciones leves (76,9 %). El hábito referido con más frecuencia fue la onicofagia (50,8 %), seguida de la queilofagia (47,5 %). De los adolescentes que presentaban bruxismo, 71,4 % mostró una disfunción moderada; sin embargo, en aquellos con disfunción leve predominó la práctica de la onicofagia (53,8 %). Conclusiones: La mayoría de los adolescentes con más de un hábito parafuncional presentaron trastornos temporomandibulares.

Introduction: Temporomandibular disorders in adolescents can be caused by parafunctional habits that probably lead to different manifestations in the stomatognathic system՚s components. Objective: To characterize the adolescents with temporomandibular disorders and parafunctional habits according to epidemiologic and clinical variables. Methods: An observational, descriptive and cross-sectional study of 74 adolescents (15-18 years) from Antonio Alomá Serrano Senior High School, belonging to the health area of José Martí University Polyclinic in Santiago de Cuba, was carried out from November, 2021 to March, 2022. Results: It was found that 88.1% of the members in the series presented light alterations, 11.9% presented moderate changes and 20.3% didn't have any changes. Of the 59 patients with temporomandibular disorders, 74.6% were women, with prevalence of the light alterations (76.9%). The habit referred with more frequency was nail biting (50.8%), followed by cheilophagia (47.5%). Of the adolescents that presented bruxism, 71.4% showed a moderate dysfunction; however, in those with light dysfunction the practice of nail biting prevailed (53.8%). Conclusions: Most of the adolescents with more than one parafunctional habit presented temporomandibular disorders.

Prevalencia de hábitos bucales parafuncionales en adolescentes de 12-13 años de edad / Prevalence of parafunctional oral habits in 12-13 years adolescents i: en

Introducción: Los hábitos bucales parafuncionales son la causa primaria o secundaria de maloclusiones o anomalías dentomaxilofaciales, cuya gravedad varía en dependencia de la edad. Objetivo: Determinar la prevalencia de los hábitos bucales parafuncionales en adolescentes de 12 a 13 años de edad. Métodos: Se realizó un estudio, observacional, descriptivo y transversal de 450 adolescentes de 12 a 13 años, que presentaban una dentición permanente completa acorde con su edad, pertenecientes a la Secundaria Básica Manuel Ascunce Domenech de la provincia de Guantánamo, quienes fueron atendidos en la Clínica Estomatológica del Policlínico Docente 4 de Abril de esa ciudad, desde diciembre de 2022 hasta enero de 2023. Las variables seleccionadas fueron el sexo, la edad, así como la presencia y el tipo de hábito parafuncional. Se utilizó la prueba de la Χ2 con un nivel de significación α=0,05. Resultados: La prevalencia de hábitos bucales parafuncionales fue de 38,0 %; de estos, los más frecuentes fueron la queilofagia (33,9 %) y la respiración bucal (25,2 %), con predominio en las féminas (50,3 %) y en el grupo de 12 años de edad (62,6 %). Conclusiones: Se encontró baja prevalencia de hábitos bucales parafuncionales en adolescentes de 12-13 años de edad y la queilofagia fue el más significativo.

Introduction: Parafunctional oral habits are the primary or secondary cause of malocclusions or dentomaxillofacial anomalies which severity varies depending on age. Objective: To determine the prevalence of parafunctional oral habits in 12-13 years adolescents. Methods: An observational, descriptive and cross-sectional study was carried out in 450 adolescents that presented a permanent complete teething according to their age, belonging to Manuel Ascunce Domenech Secondary School of Guantánamo province, who were assisted in the Stomatologic Clinic of 4 de Abril Teaching Polyclinic in that city from December, 2022 to January, 2023. The selected variables were sex, age, as well as the presence and type of parafunctional habit. The chi-square test was used with a significance level α=0.05. Results: The prevalence of parafunctional oral habits was 38.0%; of these, the most frequent were queilophagia (33.9%) and mouth breathing (25.2%), mainly in women (50.3%) and the 12 years group (62.6%). Conclusions: A low prevalence of parafunctional oral habits was found in 12-13 years adolescents and queilophagia was the most significant.

Comparison of the Chemical Composition of Six Canihua (Chenopodium pallidicaule) Cultivars Associated with Growth Habits and after Dehulling.

The canihua (Chenopodium pallidicaule) is a native Andean crop that stands out for its high content of protein, fiber, and minerals and that has a good fatty acid profile. We studied six canihuas cultivars, which were compared according to their proximate, mineral, and fatty acid composition. Based on the form of stems, termed growth habit, they belonged to two groups: decumbent (Lasta Rosada, Illimani, Kullaca, and Cañawiri) and ascending (Saigua L24 and Saigua L25). Dehulling is an important process applied to this grain. However, there is no information about how it affects the chemical composition of the canihua. Dehulling resulted in two levels, whole and dehulled canihua. The highest protein and ash contents were in whole Saigua L25 (19.6 and 5.12 g/100 g, respectively), and the highest fat content was found in dehulled Saigua L25, while the whole grains of Saigua L24 presented the highest fiber content (12.5 g/100 g). Dehulling mainly affected the macro-minerals content, while micro-minerals were only slightly linked to the dehulling. The growth habit influenced the C18:1 and C18:3 contents. In conclusion, the canihua had a nutritional composition influenced by each variety, strongly influenced by dehulling, and to a lesser extent by growth habit.

Electrophysiological signature of the interplay between habits and inhibition in response to smoking-related cues in individuals with a smoking habit: An event-related potential study.

The rigid, stimulus-bound nature of drug seeking that characterizes substance use disorder (SUD) has been related to a dysregulation of motivational and early attentional reflexive and inhibitory reflective systems. However, the mechanisms by which these systems are engaged by drug-paired conditioned stimuli (CSs) when they promote the enactment of seeking habits in individuals with a SUD have not been elucidated. The present study aimed behaviourally and electrophysiologically to characterize the nature of the interaction between the reflexive and reflective systems recruited by CSs in individuals with a smoking habit. We measured the behavioural performance and associated event-related potentials (ERPs) of 20 individuals with a smoking habit and 20 controls, who never smoked regularly, in a modified Go/NoGo task during which smoking-related CSs, appetitive and neutral pictures, presented either in first or third-person visual perspective were displayed 250 ms before the Go/NoGo cue. We show that smoking-related cues selectively influence early incentive motivation-related attention bias (N2 after picture onset), motor readiness and behavioural inhibition (Go-P3, NoGo-P3 and Pc) of individuals with a smoking habit only when presented from a first-person visual perspective. These data together identify the neural signature of the aberrant engagement of the reflexive and reflective systems during the recruitment of an incentive habit by CSs presented as if they had been response-produced, that is, as conditioned reinforcers.

Rabies in Bats (Chiroptera, Mammalia) in Brazil: Prevalence and Potential Risk Factors Based on Twenty Years of Research in the Northwestern Region of São Paulo, Brazil.

The number of rabies cases in bats has increased recently in Brazil and in the state of São Paulo, representing a new epidemiological scenario for this zoonosis. This study aimed to analyze the prevalence of rabies in bats according to food habits, taxonomic classification, sex and season of the year to identify possible risk factors for rabies occurrence in bats. A retrospective analysis of 6389 records of bat samples, from different municipalities of São Paulo, submitted to rabies diagnosis and taxonomic identification was carried out at the Rabies Diagnostic and Chiroptera Laboratories of Unesp Araçatuba, São Paulo, Brazil, from 1998 to 2017. Seventy-six (1.1%) positive rabies cases were detected in bats from ten species and seven genera of three families. The number of rabies-positive cases was higher in the dry season, with a significant association. The prevalence was higher in the Vespertilionidae family (37), especially Myotis nigricans (19) and Eptesicus furinalis (14). Frugivorous bats had a greater association with positivity for rabies, whereas the variable "sex" had no association. We recommend that the surveillance and control of rabies should be undertaken primarily during the dry season, especially in the Vespertilionidae family species and other species with a frugivorous food habit.

Diferença na qualidade de vida de tabagistas, ex-tabagistas e não tabagistas usuários das Unidades de Atenção Primária do município de Juiz de Fora, Minas Gerais / Difference in the quality of life of smokers, ex-smokers and non-smokers users of Primary Care Units in Juiz de Fora, Minas Gerais

O objetivo do presente estudo foi associar status tabágico (tabagistas, ex-tabagistas e não tabagistas) e a qualidade de vida entre usuários das Unidades de Atenção Primária à Saúde(APS). Realizou-se um estudo transversal com 500 usuários de 50 Unidades de APS do município de Juiz de Fora/MG.Foi utilizado questionário estruturado para coleta de dados sociodemográficos e de saúde e o questionário WHOQOL-BREF para avaliar a qualidade de vida. Para análise de dados foi empregada Regressão Logística. Os resultados das análises multivariadas evidenciaram que há maior chance de melhor qualidade de vida total para indivíduos ex-tabagistas (OR: 1,90; IC: 1,10-3,29) e não tabagistas (OR: 1,84; IC:1,14-2,95)em relação aos tabagistas. Da mesma forma, uma maior renda e a autodeclaração de cor da pele branca foram relacionados a melhor qualidade de vida total. Indivíduos não tabagistas também apresentaram melhor qualidade de vida no domínio físico comparado aos tabagistas(OR:2,24; IC:1,40-3,59). Conclui-se que, ex-tabagistas e não tabagistas tiveram maior chance de apresentarem melhor qualidade de vida global quando comparado aos tabagistas. Não tabagistas também apresentaram maior chance de melhor qualidade de vida no domínio físico em relação aos tabagistas.

The objective of the present study was to associate smoking status (smokers, ex-smokers and non-smokers) and quality of life among users of primary healthcare units. A cross-sectional study was conducted with 500 users of 50 Primary Health Care Units in the city of Juiz de Fora. A structured questionnaire was used to collect socio-demographic and health data and the WHOQOL-BREF questionnaire to assess the quality of life. For data analysis, LogisticRegression was used. The results of the multivariate analyzes showed that there is a greater chance of a better overall quality of life for ex-smokers (OR: 1.90; CI: 1.10-3.29) and non-smokers (OR: 1.84; CI: 1.14-2.95) in relation to smokers. Likewise, higher income and self-reported White skin color were related to a better overall quality of life. Non-smokers also presented better quality of life in the physical domain compared to smokers (OR:2.24; CI:1.40-3.59). It was concluded that ex-smokers and non-smokers were more likely to have a better overall quality of life when compared to smokers. Non-smokers also had a greater chance of better quality of life in the physical domain compared to smokers.

Cross-sectional study on factors associated with flossing in Brazilian young children.

PURPOSE: This cross-sectional study aimed at evaluating the factors associated with flossing by caregivers in Brazilian young children. METHODS: Its sample consisted of 305 children aged 1-3 and their mothers from the Brazilian city of Diamantina. They were selected through the Municipal Health Department from a list of registered children who had recently used the public health services. Data collection was done by means of the mothers answering a questionnaire which addressed economic and socio-demographic factors and also the mother and child characteristics and habits. In addition, an oral clinical examination was performed in order to assess Baume arch type and caries occurrence. Descriptive statistical analysis, chi-square test and Poisson regression were performed. RESULTS: It was found that the sample presented a prevalent flossing habit in 20.3% of the subjects. The flossing habit in the children was associated with the mothers' own habit of flossing daily (PR 2.32; 95% CI 1.12-4.82) and with the frequent children's tooth brushing by the mother (PR 2.85; 95% CI 1.05-7.76). CONCLUSION: A higher prevalence of flossing by caregivers in young children is associated with the mothers' own habit of flossing daily and with the frequent children's tooth brushing by the mother.

Lectura académica: Revisión de estudios empíricos y reflexiones teóricas en contextos hispanohablantes / Academic reading: review of empirical studies and theoretical reflections in spanish-speaking contexts

La lectura en la universidad es un tema de creciente preocupación en contextos hispanohablantes. Por ello se planteó como objetivo indagar qué se ha dicho sobre la alfabetización académica y qué diagnósticos se han hecho sobre este tema. Se llevó a cabo una revisión narrativa dentro del paradigma cualitativo de investigación con técnica de análisis de contenido. Se hizo un rastreo de documentos publicados entre los años 2000 y 2020 en bases de datos de acceso abierto. Se encontraron 25 documentos sobre 21 estudios empíricos con diversidad de técnicas y población objetivo, donde se muestran las prácticas de lectura referidas por estudiantes y vistas en el aula, el abordaje de los docentes e instituciones y, evaluaciones diagnósticas de las habilidades de lectura. En cuanto a los estudios empíricos, se han realizado diferentes caracterizaciones donde se identifica que las prácticas de lectura de los estudiantes en el aula y por fuera de ella, no favorecen el desarrollo de un nivel lector experto. Además, las evaluaciones de comprensión de textos se alinean con la propuesta teórica de niveles ascendentes de lectura que sigue siendo muy usada. Como parte de las reflexiones teóricas, se encontró que desde el constructo de alfabetización académica se concibe la lectura como una habilidad que continúa desarrollándose y depende de la situación en la que se aplique

Reading in higher education is an issue of growing concern in Spanish-speaking contexts. Therefore, the aim was to find out what has been said about academic literacy and what diagnoses have been made on this subject. A narrative review was carried out within the qualitative research paradigm using the content analysis technique. A crawl of documents published between 2000 and 2020 in open access databases was carried out. Twenty-five documents were found on 21 empirical studies with a diversity of techniques and target population, showing the reading practices referred to by students and seen in the classroom, the approach of teachers and institutions, and diagnostic assessments of reading skills. As for empirical studies, different characterizations have been made where it is identified that students' reading practices in the classroom and outside it, do not favor the development of an expert reading level. In addition, text comprehension evaluations are aligned with the theoretical proposal of ascending reading levels, which is still widely used. As part of the theoretical reflections, it was found that from the academic literacy construct, reading is conceived as a skill that continues to develop and depends on the situation in which it is applied.

El consumo de dos kiwis diarios podría mejorar el hábito intestinal en personas con estreñimiento crónico / Daily consumption of two kiwifruits could improve bowel habits in people with chronic constipation

A partir del caso de una paciente con síndrome de intestino irritable a predominio de estreñimiento cuyos síntomas mejoraron con el consumo regular de kiwi, el médico de familia se planteó la pregunta de si el kiwi podría mejorar los síntomas asociados a constipación crónica en comparación con el tratamiento habitual. Tras realizar una búsqueda de estudios que analizaran los efectos del consumo de kiwi sobre el hábito intestinal, fueron seleccionados tres artículos que permiten concluir que el consumo de esta fruta tiene una eficacia superior al placebo y comparable al psyllium y las pasas de ciruela para mejorar los síntomas de personas con estreñimiento crónico. (AU)

Based on the case of a patient with constipation-predominant irritable bowel syndrome whose symptoms improved with regular consumption of kiwi, the family doctor wondered if kiwi could improve symptoms associated with chronic constipation compared to usual treatment. After conducting a search for studies that analyzed the effects of kiwi consumption on intestinal habit, three articles were selected that allow us to conclude that the consumption of this fruit has an efficacy superior to placebo and comparable to psyllium and plum raisins to improve the symptoms of people with chronic constipation. (AU)

Modelling of the growth and productivity of soy cultivars under irrigation and rainfed conditions / Modelagem do crescimento e produtividade de cultivares de soja sob condições de sequeiro e irrigação

The aim of this study was to evaluate the fit of semi-empirical models for growth and productivity in soya cultivars under irrigation and rainfed conditions in the state of Alagoas. Two experiments were conducted, the first during the dry season from 14/11/18 to 03/04/19 (140 days), and the second during the rainy season from 20/06/19 to 28/10/19 (130 days) in the coastal-tableland region of Alagoas. The experimental design was of randomised blocks, with the treatments comprising six cultivars of different maturity groups and growth habits (M 6210, M 6410, BMX-Potência, AS 3730, M 8349 and BRS-9383). The following were evaluated: plant height, dry matter and leaf area index (LAI). The sigmoidal and pic log-normal logistic models showed a significant statistical fit (p<0.05) to the growth variables and adjusted coefficients of determination (R2adj), with a maximum of 0.994 and 0.990, respectively. The observed values and those estimated by the models showed a high association by the Pearson (r) and Willmott (d) indices, with a low Standard Error of the Estimate (SEE). The BRS-9383 cultivar had the highest observed and estimated growth rates. Under irrigation, the maximum values for plant height were 98.45 and 110.35 cm, with maximum dry matter of 65.88 and 78.70 g, and maximum LAI of 7.68 and 7.60. Under rainfed conditions, the maximum plant height was 62.91 and 72.85 cm, maximum dry matter was 40.0 and 44.91 g, and the maximum LAI was 6.34 and 6.26. The highest agricultural yields under irrigation were 6.19 and 5.90 Mg ha-1 for the AS 3730 and M 8349 cultivars. Under rainfed conditions, the M 6410 and M 8349 cultivars stood out with grain yields of 3.60 and 3.30 Mg ha-1. Thus, growth models can be used to help analyse growth as a function of days after planting.(AU)

Objetivou-se com este trabalho avaliar o ajuste de modelos semiempíricos de crescimento e a produtividade de cultivares de soja submetida a condições de irrigação e sequeiro no Estado de Alagoas. Foram conduzidos dois experimentos, o primeiro durante a estação seca de 14/11/2018 a 03/04/19 (140 dias), e o segundo na estação chuvosa de 20/06/19 a 28/10/2019 (130 dias) na região dos Tabuleiros Costeiros de Alagoas. O delineamento experimental foi em blocos casualizados e os tratamentos foram seis cultivares com diferentes grupos de maturação e hábitos de crescimento (M 6210, M 6410, BMX-Potência, AS 3730, M 8349 e BRS-9383). Foram avaliadas a altura das plantas, matéria seca e índice de área foliar (LAI). Os modelos logísticos, sigmoidal e pic log normal PHresentaram ajustes estatísticos significativos (p<0,05) para as variáveis de crescimento e coeficientes de determinação ajustado (R2ajs) máximo de 0,994 e 0,990, respectivamente. Os valores observados e estimados pelos modelos PHresentaram alta associação pelos índices de Pearson (r), Willmott (d) e baixo Erro Padrão de Estimativa (EPE). A cultivar BRS-9383 teve as maiores taxas de crescimento observados e estimados. Em condições de irrigação, os valores de altura de plantas máxima foram 98,45 e 110,35 cm, matéria seca máxima de 65,88 e 78,70 g e o LAI máximo de 7,68 e 7,60. Em sequeiro, a altura de plantas máxima foi 62,91 e 72,85 cm, matéria seca máxima de 40,0 e 44,91 g e o LAI máximo de 6,34 e 6,26. As maiores produtividades agrícola sob irrigação, foram de 6,19 e 5,90 Mg ha-1 nas cultivares AS 3730 e M 8349. Em sequeiro sobressaíram-se as cultivares M 6410 e M 8349 com produtividade de grãos de 3,60 e 3,30 Mg ha-1. Dessa forma, os modelos de crescimento podem ser utilizados para auxiliar a análise de crescimento em função dos dias após a semeadura.(AU)