Widening the Stimuli-Responsiveness of Aqueous Biphasic Systems by Changing the Ionic Liquid Cation Basicity.

Herein we demonstrate the formation of new stimuli-responsive aqueous biphasic systems (ABS), able to respond simultaneously to temperature and pH, or just to one stimulus, therefore allowing the design of more sustainable separation processes. This dual behavior is achieved with ABS formed by mono- or dicationic protic ionic liquids as phase-forming components, being defined by the ionic liquid cation chemical structure or its basicity. While ABS comprising monocationic ionic liquids only respond to the effect of temperature, systems comprising dicationic ionic liquids are simultaneously affected by both temperature and pH variations.

Dental disease in a 15th-17th centuries skeletal sample of enslaved Africans (Lagos, Portugal).

Objective: Dental disease is frequently used as a proxy for diet and overall health of individuals of past populations. The aim of this study is to investigate dental disease in a sample of enslaved African individuals recovered from an urban dump (15th-17th centuries) in Lagos, Portugal.

Design: In all, 81 African individuals (>12 years old) were analysed (19 males, 49 females, and 13 of unknown sex), in a total of 2283 alveoli, 2061 teeth, and 2213 interdental septa.

Prevalence and factors associated with risky sexual behavior among Brazilian school adolescents.

This article evaluated the prevalence and factors associated with risky sexual behavior (RSB) among Brazilian school adolescents. This is a cross-sectional study with data collected from the National Survey of School Health, 2019 edition, with a representative sample of 7th grade of elementary school to 3rd year of high school Brazilian school adolescents. This work evaluated sociodemographic, behavioral, sexual and reproductive health, mental health, sociability characteristics, medical advice received at school, and body image.

Critical line of the triangular Ising antiferromagnet in a field from a C_{3}-symmetric corner transfer matrix algorithm.

The corner transfer matrix renormalization group (CTMRG) algorithm has been extensively used to investigate both classical and quantum two-dimensional (2D) lattice models. The convergence of the algorithm can strongly vary from model to model depending on the underlying geometry and symmetries, and the presence of algebraic correlations. An important factor in the convergence of the algorithm is the lattice symmetry, which can be broken due to the necessity of mapping the problem onto the square lattice.

Envisaging a global infrastructure to exploit the potential of digitised collections.

Tens of millions of images from biological collections have become available online over the last two decades. In parallel, there has been a dramatic increase in the capabilities of image analysis technologies, especially those involving machine learning and computer vision. While image analysis has become mainstream in consumer applications, it is still used only on an artisanal basis in the biological collections community, largely because the image corpora are dispersed.