340 research outputs found
Can healthcare utilization data reliably capture cases of chronic respiratory diseases? A cross-sectional investigation in Italy
Unplanned and medical admissions to pediatric intensive care units significantly decreased during COVID-19 outbreak in Northern Italy
Acid-suppressive medications in the first year of life and risk of childhood asthma: A population-based birth cohort study
Daily exposure to air pollution particulate matter is associated with atrial fibrillation in high-risk patients
Effect of online health information seeking on anxiety in hospitalized pregnant women: Cohort study
Preoperative non-palpable breast lesion localization, innovative techniques and clinical outcomes in surgical practice: A systematic review and meta-analysis
Positioning of vascular access in pediatric patients: An observational study focusing on adherence to current guidelines
Evaluating effectiveness of outpatient monitoring in type 2 diabetes: The one-year experience in an Italian group of primary care
Effect of interchain separation on the photoinduced absorption spectra of polycarbazolyldiacetylenes
The photoinduced absorption spectra of a novel polycarbazolyldiacetylene with long aliphatic chains on the carbazolyl side groups are measured and compared with those of the unsubstituted polyDCHD. The two polymers in the blue form exhibit very similar electronic absorption spectra and Raman frequencies. This fact indicates that the conjugation length of the polydiacetylene backbone is not too affected by the long substituents. In contrast, the near steady-state photoinduced absorption spectra show that different photogeneration mechanisms are involved in the two polymers. This result can be ascribed to the role played by the interchain distance in the dynamics of the relaxation processes in polydiacetylenes
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