This study evaluated the influence of different light-curing modes on the volumetric polymerization shrinkage and degree of conversion of a composite resin at different locations using micro-computed tomography and Fourier transform infrared spectroscopy (FTIR). Specimens were divided into 4 groups based on the light-curing mode used (Bluephase 20i): 1 -High (1,200 mW/cm 2 ); 2 -Low (650 mW/cm 2 ); 3 -Soft-start (650-1,200 mW/cm 2 ); and 4 -Turbo (2,000 mW/cm 2 ). Degree of conversion was calculated by the measurement of the peak absorbance height of the uncured and cured materials at the specific wavenumbers, and was performed by FTIR 48 h after curing resin samples. Degree of conversion was analyzed using two-way ANOVA. No significant differences were observed independent of the region of the restoration investigated (p>0.05). Different curing modes did not influence volumetric shrinkage neither degree of conversion of class I composite resin restorations.

- Often, clues in the lung biopsy may offer the first suggestion of a fibrotic lung disease other than IPF, and accurate classification is important for prognosis, treatment, and the development of future therapies.

Objectives: The European Centre for Disease Control (ECDC) COVID-19 guidelines for non-pharmaceutical interventions (NPI) identify safety, hygiene and physical distancing measures to control SARS-Cov-2 transmission in schools. Because their implementation requires complicated changes, the guidelines also include “accompanying measures” of risk communication, health literacy and community engagement. Although these are considered crucial, their implementation is complex. This study aimed to co-define a community partnership that a) identifies systemic barriers and b) designs recommendations on how to implement the NPI to improve SARS-Cov-2 prevention in schools.Methods: We designed and piloted a System-Oriented Dialogue Model with the participation of 44 teachers and 868 students and their parents from six Spanish schools during 2021. The results were analysed using thematic analysis.Results: Participants identified 406 items addressing issues related to system characteristics, which is indicative of the complexity of the challenge. Using a thematic analysis, we defined 14 recommendations covering five categories.Conclusion: These findings could help in developing guidelines for initiating community engagement partnerships in schools to provide more integrated prevention interventions.

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ResumenLa cistitis enfisematosa se define como la presencia de gas en la pared vesical secundaria a infección por microorganismos productores de gas. Es más frecuente en el género femenino, con predominio entre la sexta y octava década de la vida. Los factores de riesgo identificados son inmunosupresión, alteraciones estructurales o neurológicas del tracto urinario inferior, entre otros. Su prevalencia o incidencia es desconocida, dada la baja frecuencia de la enfermedad. Su forma de presentación clínica es muy variable e incluye desde un paciente asintomático hasta sepsis fulminante. El diagnóstico se puede realizar a través de estudios complementarios por imágenes o por métodos de visualización directa como la cistoscopia, laparotomía o laparoscopia, requiriendo rescate bacteriológico para confirmar la etiología infecciosa, siendo el método diagnóstico más usado la tomografía computarizada. Presentamos el caso de una paciente femenina con inmunosupresión cró-nica por esteroides a altas dosis como parte de manejo de lupus eritematoso sistémico retroneumoperitoneo y enfisema de tejidos blandos pélvi-cos secundario a cistitis enfisematosa por Klebsiella pneaumoniae. Se trata del primer caso reportado de retroneumoperitoneo secundario a cistitis enfisematosa en una paciente con lupus eritematoso sistémico cuyo único factor de riesgo identificado fue la inmunosupresión farmacológica con esteroides.Palabras clave: Cistitis enfisematosa, Infección del tracto urinario, Tomografía computada multidetector, Lupus eritematoso sistémico, Retroneumoperitoneo. AbstractEmphysematous cystitis is defined as the presence of gas in the bladder wall due to infection by gas-forming organisms. It is more common in females, predominantly between the sixth and eighth decades of life. The identified risk factors are immunosuppression (secondary to systemic diseases or drugs); structural or neurological lower urinary tract alterations,

Anonymous screening study of schoolchildren: n = 865 girls, 10 -18 years "Method of body modification and self-harm" (Poljskaja N.A, 2017); "Suicidal personality-19" (Yunatskevich P.I., 2009); Conclusions: Suicidal behavior of adolescent girls increases in the period of 12-15 years, followed by an increase in the risk of self-injury behavior in 16-18 years.

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