The phrase "addition to the activities" is correct and usable in written English.
It can be used when you want to mention something that is being added alongside existing activities or tasks.
Example: "In addition to the activities planned for the weekend, we will also have a guest speaker."
Alternatives: "along with the activities" or "besides the activities".
A scaled-down version of the show, which was set to include tributes to the victims and rescue workers, had been rescheduled for tonight, with a simulcast from New York in addition to the activities here.
In addition to the activities of the microbes, occurrence of various enzymes in earthworm guts also helps such processes.
According to such research, it has been found that the Sq amplitude observed in middle- and low-latitude regions changes with dependence on seasons and solar activity in addition to the activities of solar and lunar tides in the ionosphere.
In total, 76 people from 30 institutes participated in the workshop, during which we explained the current situation of personal genome research and data sharing in addition to the activities of the GSP and MGSP.
In addition to the activities led by HELCOM, integrated ecosystem assessments in several sub-areas of the Baltic Sea have recently been carried out by ICES [15].
In addition to the activities described, several plant thionins show cytotoxic and anticancer activities (Table 2).
In addition to the activity of symposium, the first training course was organized by National Taiwan University in Taiwan, in August 2013.
In addition to the activity cliffs regarding to a single MOA, we also carried out activity cliff analysis by combing the AR agonist and antagonist datasets.
In addition to the activity-based sampling, we also gathered another set of users by random sampling, which is widely used to collect users for the REST API.
In addition to the activity coefficient model, an expression for calculation of solubility products for various salts in the reciprocal salt system is presented.
The acidic environment of the stomach, in addition to the activity of proteases in the stomach and small intestine, make it difficult for most protein fragments to make it through the digestive tract intact.
