Infrared spectroscopy of α-pinene ices irradiated by energetic ions at temperatures relevant to astronomical environments.

The effects of cosmic-ray bombardment of chiral molecules in the interstellar medium are simulated in the laboratory by performing radiolysis experiments of pure α-pinene ices at four different temperatures. The identification and significance of α-pinene have not been fully understood because of the insufficient amount of spectral information of these compounds at low temperatures. A comparison of the temperature dependence of the mid-infrared spectra of pure α-pinene ices before and after irradiation its irradiation by 61.

Sarcopenia in the Oldest-Old Adults in the Capital of Brazil: Prevalence and Its Associated Risk Factors.

Background: In light of the demographic context in which the older adult population is prominent, sarcopenia emerges as a significant concern for the health of these individuals.

Aim: To assess the frequency of sarcopenia and severe sarcopenia and the associated risk factors in the oldest adults living in the community.

Methods: There were 399 participants aged 80 or older, of both sexes, using primary health care services in the metropolitan area of Brasília, Brazil.

Chemical diversity of the herbal decoction of Plectranthus ornatus and its anti-nociceptive and anti-inflammatory activities in zebrafish models.

Ethnopharmacological Relevance: Plectranthus ornatus is a medicinal plant originally from Africa but adapted to Brazil's climate conditions. It is recognized for its therapeutic properties, particularly for treating liver and stomach diseases, gastritis control, heartburn, and hangover. Therefore, studies on its chemical composition and pharmacological evaluation are important for the safe use of the plant.

Factors associated with the completion of syphilis treatment among transgender women and travestis, in five Brazilian capitals, 2019-2021: a multicenter cross-sectional study.

Objective: To assess the previous history of syphilis in transgender women and travestis (TWTs) and identify factors associated with treatment incompleteness.

Methods: : This was a multicenter cross-sectional study conducted between 2019 and 2021, with participants recruited through respondent-driven sampling, in five Brazilian capitals. Dependent variable: "reported syphilis treatment in the last year", "no/incomplete" or "complete".