BACKGROUND AND OBJECTIVES This study was conducted to evaluate the effect of two soft drinks, Coca-Cola and Mirinda orange on bracket bond strength, on adhesive remnant on teeth after debonding the bracket, and to observe by means of scanning electron microscope (SEM) the effect of these drinks on intact and sealed enamel. METHODS 120 non-carious maxillary premolar teeth already extracted for...

Abstract Toppling the statue of slave merchant Edward Colston in Bristol, removing monuments King Leopold II from public places Belgium, Black Lives Matter protests, and mass demonstrations targeting remembrance certain chapters history Global North – these are some significant events that drew attention to ongoing disputes around legacy colonialism during summer 2020. These developments form a...

Data fusion is one of the key techniques in Wireless sensor network (WSN). Data fusion can reduce quantity of data transmission in the network, extend network lifetime by reducing energy consumption, and improve efficiency of bandwidth utilization. At present, researches on data fusion in WSN mainly fall into the following aspects: aggregation tree construction and data processing. This paper p...

In recent years, physically unclonable functions (PUFs) have gained significant attraction in IoT security applications, such as cryptographic key generation and entity authentication. PUFs extract the uncontrollable production characteristics of different devices to generate unique fingerprints for applications. When generating PUF-based secret keys, reliability entropy keys are vital factors....

The most common solution for implementing access control into a dynamic group is to use a group key unknown to all but the users in the group. The group key (i.e., session key) is updated for every session throughout the lifetime of the group with the procedure of group key distribution. In this paper, we propose a group key distribution scheme with self-healing property that enables users in a...

Free-space propagation can be described as a shearing of the Wigner distribution function in the spatial coordinate; this shearing is linear in paraxial approximation but assumes a more complex shape for wide-angle propagation. Integration in the frequency domain allows the determination of near-field diffraction, leading to the well known Fresnel diffraction when small angles are considered an...

we prove that each normal automorphism of the $n$-periodic product of cyclic groups of odd order $rge1003$ is inner, whenever $r$ divides $n$.

Dispersed particle gel (DPG) has been first successfully prepared using cross-linked gel systems through a simple high speed shearing method with the aid of a colloid mill at room temperature. The gel microstructure and particle size were investigated by scanning electron microscope (SEM), transmission electron microscope (TEM), and dynamic light scattering (DLS) measurements. The results clea...