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Me 2 Cd + TOPSe → CdSe + (byproducts) CdSe nanoparticles can be modified by production of two phase materials with ZnS coatings. The surfaces can be further modified, e.g. with mercaptoacetic acid, to confer solubility. [12] Synthesis in structured environments refers to the production of cadmium selenide in liquid crystal or surfactant ...
Physical security describes security measures that are designed to deny unauthorized access to facilities, equipment, and resources and to protect personnel and property from damage or harm (such as espionage, theft, or terrorist attacks). [1] Physical security involves the use of multiple layers of interdependent systems that can include CCTV ...
The Security Fundamentals Professional Certification (SFPC) is a credential offered to Americans under the Security Professional Education Development Program (SPēD).. The SFPC is sponsored through the Center for Development of Security Excellence (CDSE), a part of the Defense Security Service (DSS) in the US Government.
Forensic science, also known as criminalistics, [ 1 ] is the application of science principles and methods to support legal decision-making in matters of criminal and civil law. During criminal investigation in particular, it is governed by the legal standards of admissible evidence and criminal procedure. It is a broad field utilizing numerous ...
The imperial examination was a civil service examination system in Imperial China administered for the purpose of selecting candidates for the state bureaucracy.The concept of choosing bureaucrats by merit rather than by birth started early in Chinese history, but using written examinations as a tool of selection started in earnest during the Sui dynasty [1] (581–618), then into the Tang ...
A Physical Security Professional (PSP) is a Board certification process for individuals involved in the physical security of organizations. This certification process is offered by ASIS International. [1] Certification lasts for three years, during which time ASIS requires credential holders to complete 60 Continuing Professional Education ...
American students in a computer fundamentals class taking an online test in 2001. An examination (exam or evaluation) or test is an educational assessment intended to measure a test-taker's knowledge, skill, aptitude, physical fitness, or classification in many other topics (e.g., beliefs). [1] A test may be administered verbally, on paper, on ...
The ancient Olympic Games (Ancient Greek: τὰ Ὀλύμπια, ta Olympia[ 1 ]), or the ancient Olympics, were a series of athletic competitions among representatives of city-states and one of the Panhellenic Games of Ancient Greece. They were held at the Panhellenic religious sanctuary of Olympia, in honor of Zeus, and the Greeks gave them a ...