Vaccination

Moderna hails diversity of COVID trial participants

Biotech firm Moderna said Thursday that it had successfully recruited ethnic minorities, older people and those with underlying health issues for its COVID-19 vaccines trial, after it pushed to enrol groups most vulnerable ...

Diseases, Conditions, Syndromes

Mask up to slow down SARS-CoV-2

Along with handwashing and physical distancing, the appropriate use of masks has stood as one of the essential pillars of infection prevention measures against COVID-19. However, rigorous evidence of masks' effectiveness ...

Diseases, Conditions, Syndromes

Chinese drugmaker setting up vaccine production lines

A state-owned Chinese drugmaker is setting up production lines to supply 1 billion doses of two possible coronavirus vaccines that are being tested on 50,000 people in 10 countries, the company chairman said Tuesday.

page 1 from 100

Laborer

One of the construction trades, traditionally considered unskilled manual labor (as opposed to skilled labor). In the division of labor, laborers have all blasting, hand tools, power tools, air tools, and small heavy equipment, and act as assistants to other trades , e.g. operators or cement masons. The first century BC engineer Vitruvius writes in detail about laborer practices at that time. In his experience a good crew of laborers is just as valuable as any other aspect of construction. Other than the addition of pneumatics, laborer practices have changed little. With the advent of advanced technology and its introduction into the construction field, the laborers have been quick to include much of this technology as being laborers work.

This text uses material from Wikipedia, licensed under CC BY-SA