Publications by authors named "Gabriel Maciel"

Background: Bullying has been identified as a risk factor for many issues among adolescents. Although it was already considered a public health issue in Brazil before the COVID-19 pandemic, little is known about how the pandemic and associated public health measures have affected bullying behavior.

Objective: To explore changes in bullying victimization and perpetration among Brazilian high school students from 2019 to 2022.

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Purpose: This study aimed to identify factors associated with depressive symptoms in adolescents during the COVID-19 pandemic in Brazil.

Design And Methods: A cross-sectional study was conducted in 2021 with a sample of 1303 students (50.96% females; mean age = 16.

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Theory questions the persistence of nonreciprocal interactions in which one plant has a positive net effect on a neighbor that, in return, has a negative net impact on its benefactor - a phenomenon known as antagonistic facilitation. We develop a spatially explicit consumer-resource model for belowground plant competition between ecosystem engineers, plants able to mine resources and make them available for any other plant in the community, and exploiters. We use the model to determine in what environmental conditions antagonistic facilitation via soil-resource engineering emerges as an optimal strategy.

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The use of dwarf plants in tomato breeding has provided several advantages. However, there are no identified dwarf plants () containing the self-pruning habit (). The aim of this work was to obtain future generations, characterize the germplasm, and select potential dwarf plants with a determinate growth habit to obtain Salad-type lines.

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Purpose: Understanding self-rated health in young people can help orient global health actions, especially in regions of social vulnerability. The present study analysed individual and contextual factors associated with self-rated health in a sample of Brazilian adolescents.

Design And Methods: Cross-sectional data from 1272 adolescents (aged 11-17; 48.

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Purpose: This work compiles the characteristics of bone cells involved in the physiological bone remodeling.

Methods: A narrative review of the literature was performed.

Results: Remodeling is a different process from modeling.

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Plant microbiome engineering is a promising tool to unlock crop productivity potential and exceed the yield obtained with conventional chemical inputs. We studied the effect of Aspergillus niger inoculation on in-field lettuce (Lactuca sativa) growth in soils with limiting and non-limiting P concentrations. Lettuce plants originating from inoculated seeds showed increased plant diameter (6.

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This study evaluated the potential of as an inoculant for growth promotion of vegetable seedlings. Seven vegetable species were evaluated in independent experiments carried out in 2 + 1 factorial schemes, with two doses of conidia (10 and 10 per plant) applied in two inoculation methods (seed treatment and in-furrow granular application), plus an uninoculated control. Experiments were carried out in a greenhouse.

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Changes in root growth and metabolism of P in tomato cultivars are necessary in acidic soils in tropical and subtropical regions in response to P deficiency. This increase in the efficiency of phosphorus absorption by tomatoes can significantly reduce the doses of phosphate fertilizers used, as well as, possibly, the more immediate use of P fixed in the soil matrix, with favorable effects on agricultural sustainability, promoting the use of marginal areas in terms of soil fertility, and the national fertilizer economy. The tested hypothesis was that there would be no difference in the uptake and utilization of P by tomato cultivars; therefore, this study investigated the variation in the dynamics of absorption and efficiency of P-use through changes in the root, stem, leaf, gas exchange, and P-use efficiency in tomato cultivars contrasting P-absorption.

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Many types of organisms disperse through heterogeneous environments as part of their life histories. For various models of dispersal, including reaction-advection-diffusion models in continuously varying environments, it has been shown by pairwise invasibility analysis that dispersal strategies which generate an ideal free distribution are evolutionarily steady strategies (ESS, also known as evolutionarily stable strategies) and are neighborhood invader strategies (NIS). That is, populations using such strategies can both invade and resist invasion by populations using strategies that do not produce an ideal free distribution.

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Objective: To explore the role of smoking and obesity in primary Sjögren syndrome (pSS).

Methods: Olmsted County (Minnesota, USA) residents (n = 106) diagnosed with pSS from 2000 to 2015 were compared to 3 controls without pSS and matched for age and sex who were randomly selected from Olmsted County residents.

Results: Current smokers were less likely to be pSS cases (OR 0.

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Objective: To determine rates and primary discharge diagnoses of hospitalisation in a cohort of patients with incident primary Sjögren's syndrome (pSS) compared with the general population.

Methods: This was a retrospective population-based cohort study focused on Olmsted County, Minnesota. The pSS cohort consisted of patients with incident pSS in the 1976-2015 period and was compared with a cohort of individuals without pSS matched 3:1 for age, sex and calendar year, randomly selected from the same population.

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Objective: To estimate the incidence and mortality rates, and their evolution over time, of physician-diagnosed primary Sjögren syndrome (pSS) in residents of Olmsted County, Minnesota.

Patients And Methods: Medical records of patients with a diagnosis or suspicion of SS in Olmsted County from January 1, 2006, through December 31, 2015, were reviewed to identify incident cases of pSS (defined by physician diagnosis). These cases were combined with those from a 1976 through 2005 incident cohort (n=111) from the same population.

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Objective: To report the point prevalence of primary Sjögren's syndrome (SS) in the first US population-based study.

Methods: Cases of all potential primary SS patients living in Olmsted County, Minnesota, on January 1, 2015, were retrieved using Rochester Epidemiology Project resources, and ascertained by manual medical records review. Primary SS cases were defined according to physician diagnosis.

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Invasion of alien species is one of the major threats for natural community structures, potentially leading to high economic and environmental costs. In this work, we study through a reaction-diffusion model the dynamics of an invasion in a heterogeneous environment and in the presence of a strong Allee effect. We model space as an infinite landscape consisting of periodically alternating favourable and unfavourable patches.

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Background: PATIENTS with rheumatoid arthritis (RA) are at increased risk of developing comorbid conditions.

Objectives: To evaluate the prevalence of comorbidities and compare their management in RA patients from different countries worldwide.

Study Design: international, cross-sectional.

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How individual-level movement decisions in response to habitat edges influence population-level patterns of persistence and spread of a species is a major challenge in spatial ecology and conservation biology. Here, we integrate novel insights into edge behavior, based on habitat preference and movement rates, into spatially explicit growth-dispersal models. We demonstrate how crucial ecological quantities (e.

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The aim was to assess heterosis in a set of 16 summer-squash hybrids, and evaluate the combining capacity of the respective parental lines, which differed as to the degree of parthenocarpy and resistance to PRSV-W (Papaya Ringspot Virus-Watermelon strain). The hybrids were obtained using a partial diallel cross design (4 × 4). The lines of parental group I were 1 = ABX-037G-77-03-05-01-01-bulk, 2 = ABX-037G-77-03-05-03-10-bulk, 3 = ABX-037G-77-03-05-01-04-bulk and 4 = ABX-037G-77-03-05-05-01-bulk, and of group II, 1' = ABX-037G-77-03-05-04-08-bulk, 2' = ABX-037G-77-03-05-02-11-bulk, 3' = Clarice and 4' = Caserta.

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