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Objectives Maternal postpartum smoking is associated with several negative outcomes for mother and child. The relationship between bonding impairment (BI) and maternal postpartum smoking is less known. The aim of the present study was to assess the relationship between BI and maternal postpartum smoking at 6 to 8 months after childbirth in a primary care sample of low-income mothers who had depression during the previous pregnancy. Methods We performed a cross-sectional, secondary analysis from a community trial with 356 postpartum women from public primary care clinics in São Paulo, Brazil. The main outcome measure was maternal postpartum smoking. The main exposure variable was BI assessed with the Postpartum Bonding Questionnaire. A socio-demographic questionnaire evaluated maternal and obstetric characteristics. Postpartum depression was assessed with the Patient Health Questionnaire. Crude and adjusted prevalence ratios (PR) of the association between BI and maternal postpartum smoking, with 95% confidence intervals (CI), were calculated using Poisson regression. Multivariate analysis was performed using three models (Model 1 adjusted for randomization during pregnancy, Model 2 adjusted for Model 1 plus mother's socioeconomic and obstetric characteristics, and Model 3 adjusted for Model 2 plus postpartum depression). Results Maternal postpartum smoking occurred in 16.7% of our sample. In the multivariable analysis, BI was associated with maternal postpartum smoking (PR:2.04; CI 95% 1.08:3.84). Conclusions for Practice Women presenting bonding problems are at higher risk of smoking after childbirth. Intervention to enhance mother-child bonding may have the potential to decrease maternal postpartum smoking., Author(s): Alexandre Faisal-Cury [sup.1] [sup.2] , Alicia Matijasevich [sup.1] Author Affiliations: (1) grid.11899.38, 0000 0004 1937 0722, Departamento de Medicina Preventiva, Faculdade de Medicina FMUSP, Universidade de São Paulo, , [...]

This work investigates the effectiveness of using convolutional neural networks (CNNs) and instantaneous displacement measurements for damage identification in beams. The study involves subjecting laboratory beams to eight distinct damage scenarios and capturing the vertical positions of 60 points along the beam length during free-vibration tests using a high-speed camera. The data obtained was subsequently used to train a CNN in a supervised manner to estimate the level of damage at each point. Results showed that the CNN models were able to correctly localize and quantify the damage levels when trained on data from all damage scenarios. The soundness of the proposed methodology was demonstrated in a robustness assessment, where all eight damage scenarios were correctly identified even when two of them were excluded from the training dataset. [ABSTRACT FROM AUTHOR]

Objectives To evaluate the association between mother-child bonding at 6-9 months after birth and suicidal ideation Methods A cross-sectional study embedded in a clinical trial with 358 low-income postpartum women who had antenatal depression in São Paulo, Brazil. The Postpartum Bonding Questionnaire and the Patient Health Questionnaire-9 were used Results The percentage of the main outcome, suicidal ideation (SI) was 10.3%. Using logistic regression models, bonding impairment (BI) was associated with SI even after controlling for postpartum depression and other covariates. Conclusions for Practice SI affects 10% of vulnerable postpartum women. BI is independently associated with SI. Treating BI may prevent SI, Author(s): Alexandre Faisal-Cury [sup.1] , Renata Bertazzi Levy [sup.1] , Alicia Matijasevich [sup.1] Author Affiliations: (1) grid.11899.38, 0000 0004 1937 0722, Departamento de Medicina Preventiva - Faculdade de Medicina, Universidade [...]

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