Side-channel analysis is a well-known and efficient hardware technique to recover embedded secrets in microprocessors. Countermeasures relying on random masking have been proven to be sound protections against such threats and are usually added to protect sensitive intermediate data during the algorithm process. However, SecondOrder Side-Channel Analysis have proven to allow secret key recovery...

As regards the significant role of stethoscopes in the diagnosis of congenital and adventitious heart diseases and prevention of irreparable complications of these diseases, the quality of hearing sound of these stethoscopes by a physician has a significant impact on the disease diagnosis. This device plays an important role in the early diagnosis of congenital heart and respiratory diseases an...

Introduction The ability to localize sound is useful for survival because it allows an animal to determine the location of sound sources, which, in nature, are usually other animals. Indeed, the need to localize sound explains why terrestrial vertebrates have two ears, as differences in the time of arrival and the intensity of a sound at the two ears gives information about the direction of its...

Introduction The ability to localize sound is useful for survival because it allows an animal to determine the location of sound sources, which, in nature, are usually other animals. Indeed, the need to localize sound explains why terrestrial vertebrates have two ears, as differences in the time of arrival and the intensity of a sound at the two ears gives information about the direction of its...

The ecological impact of artificial light at night (ALAN) is an increasingly recognized process that accompanies expanding urbanization. Yet, we have limited knowledge on the impact of ALAN on wild species, and on the potential to mitigate any negative effects by using different light sources and colors. In birds, effects of ALAN on activity levels are reported for several species and, hence, t...

INTRODUCTION This study aimed to investigate Flavivirus infection in birds captured in green areas of São Paulo. METHODS Oropharyngeal swabs, cloacal swabs, and blood samples from 170 birds captured in two green areas in São Paulo, Brazil were subjected to real time-polymerase chain reaction (RT-qPCR) analysis of Flavivirus specific NS5 gene fragment. RESULTS All samples were negative for t...

This paper presents a steganographic scheme based on the RGB colour cover image. The secret message bits are embedded into each colour pixel sequentially by the pixel-value differencing (PVD) technique. PVD basically works on two consecutive non-overlapping components; as a result, the straightforward conventional PVD technique is not applicable to embed the secret message bits into a colour pi...