Public communication engineers of ethnic minorities in our country are precious cultural heritage, established, developed and archived from generation to generation. This is a unique cultural feature, unique to the people, contributing to the most diverse and colorful picture of Vietnamese culture. With very unique values, many handmade communication systems of the compatriots are continuously being protected and promoted in the doi moi and international importation. However, under the influence of the management system and the employer, especially the impact of the 4th industrial revolution, the craft transmission system is faced with many recipes, both immediate and long-term risks. . Therefore, it is necessary to have a full formula and depth of the value of the manual communication system, from which there are scientific and synchronous solutions, contributing to protecting the characteristics of ethnic minorities. new condition.

Today's environment is heavily polluted, and employees are the children. Therefore, a protective environment is extremely necessary, including a protective working environment. A hygienic environment is a way to help the environment be healthy through small but meaningful actions. From simply putting trash in the trash to doing bigger things like treating waste well, from saving water to even bigger problems of saving resources... From now on, we also have can protect the biological environment in many simple ways: garbage according to regulations, protect files that can survive, save water ... Environmental sanitation plays a huge role in ecological balance, regulating harmonize anus, prevent genius, help the environment of soil, water, and additional fresh air...