This text covers the professional and scientific career of Maria Cecilia Ferro Donnangelo, professor, researcher and influential intellectual in the area of Collective Health. Born in 1940, and killed in a car accident in 1983, she actively participated in the emergence of Collective Health in Brazil and greatly influenced the creation of the sub-areas of Social Science and the Humanities in th...

We discuss synthetic receptors for haptic sensing. These are based on magnetic field sensors (Hall effect structures) fabricated using standard CMOS technologies. These receptors, biased with a small permanent magnet can detect the presence of ferro or ferri-magnetic objects in the vicinity of the sensor. They can also detect the magnitude and direction of the magnetic field.

Milena de Sousa Nascimento, Viviane Gianluppi Ferro & Ricardo Ferreira Monteiro Universidade Federal do Rio de Janeiro, Instituto de Biologia, Departamento de Ecologia, Laboratório de Ecologia de Insetos, CP 68020, 21941-590, Rio de Janeiro, RJ, Brazil. Universidade Federal de Goiás, Instituto de Ciências Biológicas, Departamento de Ecologia, 74690-900, Goiânia, GO, Brazil. Corresponding author...

We provide evidence that proton irradiation of energy 2.25 MeV on highly oriented pyrolytic graphite samples triggers ferro- or ferrimagnetism. Measurements performed with a superconducting quantum interferometer device and magnetic force microscopy reveal that the magnetic ordering is stable at room temperature.