The number of workers using the mandibular marking behavior (henceforth "marking workers") and the total number of mandibular marking behaviors (henceforth "marking") produced were recorded during 10 minutes before and 10 minutes after the introduction of the food resource or alien ant.
Bereaved families and union members have joined together to hold a rally marking Workers' Memorial Day.
During the first series of experiments we noted that the number of marking workers increased significantly after we deposited honey, prey or alien ants on the tested area (z = 5.303, 6.536 and 5.555, respectively; P<0.001 in all cases); (Fig. 2A).
For the experiment, the excavation rate of individually marked workers kept in plastic cylinders filled with soil was recorded.
The latest PMI survey of Britain's manufacturing sector from the UK is out this morning too (9.30am) Most European stock markets are going to be closed today for a bank holiday to mark workers' rights.
In that spirit, Naveen Sangji, sister of Sheri Sangji, the technician who last year died of injuries from lab fire at the University of California (UC), Los Angeles, made the issue of lab safety part of the official observances in April that marked Workers Memorial Day in Washington, D.C. Annual commemorations of job-related deaths have taken place for years, across the nation and abroad.
When marking, the workers first rub the underside of their mandibles onto the substrate in a series of side-to-side movements, with the tips of mandibles describing an arc.
The yellow safety lines along the assembly line to mark where workers can walk safely, usually bright and fresh in Ford factories, have been worn and scuffed until faint.
The protests, which will take place in 270 cities, mark the workers' largest show of force in the three years since they launched a series of rallies to call for higher pay.
The JVP which usually stage a massive march and a rally to mark international workers day, has decided to honour the government's request.
