BACKGROUND: Stainless steel brackets are composed of various metal that may corrode in oral cavity.Corrosion is caused by the release of metal ions such as chromium, nickel, and iron.The release of metal ions can cause adverse effects such as toxicity, allergic, and mutagenicity.To evaluate the biocompatibility of stainless steel brackets, micronuc
We propose a method to control the motion of a capsule endoscope (CE) in the stomach utilizing either a single external permanent magnet (EPM) or dual EPMs to extend the examination of the upper gastrointestinal tract.When utilizing the conventional magnetic navigational system (MNS) with a single EPM to generate tilting and rotational motions of t
Vehicles travelling underwater experience drag and the frictional drag costs 60% of the total energy consumption.Using trapped air serving as a lubricant is a promising way to reduce drag.The trapped air plays a significant role in drag reduction, and most failures in drag Jewelry reduction are related to instability, escape, and dissolution of the
<p>The conclusions of the European Food Safety Authority (EFSA) following the peer review of the initial risk assessments carried out by the competent authority of the rapporteur Member State Belgium for the pesticide active substance <em>Paecilomyces fumosoroseus</em> strain FE 9901 are reported.The context of the peer review was