Biodiversity and Antifungal Activities of Amazonian Actinomycetes Isolated from Rhizospheres of Plants.

Background: Actinobacteria are major producers of antibacterial and antifungal metabolites and are growing their search for substances of biotechnological interest, especially for use in agriculture, among other applications. The Amazon is potentially rich in actinobacteria; however, almost no research studies exist. Thus, we present a study of the occurrence and antifungal potential of actinobacteria from the rhizosphere of , a native South American plant and one that is economically useful in the whole of the Amazon.

Biosurfactant Production using URM 1150 and its Application in the Bioremediation of Coast Environments Impacted by Oil Spills.

Background: This study aimed to produce, characterize, and apply a biosurfactant as a bioremediation tool for oil-contaminated coastal environments.

Methods: The biosurfactant was produced in a medium containing 5.0% corn steep liquor and 1.

Satisfaction and Workload as Predictors of Psychological Distress in Professionals of Psychosocial Care Centers During the COVID-19 Pandemic.

Background And Aims: The COVID-19 pandemic significantly impacted the mental health of healthcare professionals, especially those working in Psychosocial Care Centers (CAPS), which are crucial services in the Brazilian mental health system. This study aimed to investigate the association between job satisfaction, workload, and psychological distress among CAPS professionals during the pandemic.

Methods: A cross-sectional study was conducted with 53 professionals from seven CAPS.

Adrenal Venous Sampling Using Metanephrine in Primary Aldosteronism With or Without Cortisol Co-Secretion.

Context: The role of plasma metanephrine in adrenal venous sampling (AVS) for assessing lateralization in primary aldosteronism (PA) requires further clarification.

Objective: To evaluate the performance of plasma metanephrine in AVS for determining aldosterone lateralization in PA, with or without mild autonomous cortisol secretion (MACS).

Methods: Sequential AVS under cosyntropin stimulation was conducted in 58 consecutive patients with PA and indication for AVS.

Heavy atom effects on synthetic pyranoanthocyanin analogues.

Pyranoflavylium cations are synthetic analogues of pyranoanthocyanins, the much more color-stable compounds that are formed spontaneously from grape anthocyanins during the maturation of red wines. In the present work, our studies of the photophysical properties of pyranoanthocyanin analogues are extended to include nine pyranoflavylium cations substituted with one or two bromo and/or iodo heavy atoms. The room temperature fluorescence, 77 K fluorescence and phosphorescence, triplet formation in solution, and sensitized singlet oxygen formation, with excited state acidity suppressed by the addition of trifluoroacetic acid, are compared to those of similar pyranoflavylium cations that do not contain a heavy atom.