3 research outputs found
Biosensors
A biosensor is defined as a detecting device that combines a transducer with a
biologically sensitive and selective component. When a specific target molecule interacts
with the biological component, a signal is produced, at transducer level, proportional to the
concentration of the substance. Therefore biosensors can measure compounds present in the
environment, chemical processes, food and human body at low cost if compared with
traditional analytical techniques.
This book covers a wide range of aspects and issues related to biosensor technology,
bringing together researchers from 11 different countries. The book consists of 16 chapters
written by 53 authors. The first four chapters describe several aspects of nanotechnology
applied to biosensors. The subsequent section, including three chapters, is devoted to
biosensor applications in the fields of drug discovery, diagnostics and bacteria detection.
The principles behind optical biosensors and some of their application are discussed in
chapters from 8 to 11. The last five chapters treat of microelectronics, interfacing circuits,
signal transmission, biotelemetry and algorithms applied to biosensing
Online learning of physics during a pandemic: A report from an academic experience in Italy
The arrival of the Sars-Cov II has opened a new window on teaching physics in academia.
Frontal lectures have left space for online teaching, teachers have been faced with a new way
of spreading knowledge, adapting contents and modalities of their courses. Students have
faced up with a new way of learning physics, which relies on free access to materials and
their informatics knowledge. We decided to investigate how online didactics has influenced
students’ assessments, motivation, and satisfaction in learning physics during the pandemic
in 2020. The research has involved bachelor (n = 53) and master (n = 27) students of
the Physics Department at the University of Cagliari (N = 80, 47 male; 33 female). The
MANOVA supported significant mean differences about gender and university level with
higher values for girls and master students in almost all variables investigated. The path
analysis showed that student-student, student-teacher interaction, and the organization of
the courses significantly influenced satisfaction and motivation in learning physics. The
results of this study can be used to improve the standards of teaching in physics at the
University of Cagliar