The phrase "activity at the expense" is correct and usable in written English.
It can be used to indicate that one activity is being prioritized or undertaken while negatively impacting another activity or resource.
Example: "The company decided to increase its marketing budget, but this activity came at the expense of employee training programs."
Alternatives: "activity at the cost of" or "activity to the detriment of".
That explains the emphasis on group activity at the expense of intimacy: this is a film about the dynamics of a collective.
From ethology and experimental psychology has come the idea that an animal's instrumental behaviour in any given situation is a product of competition between various possible activities, a competition whose resolution depends on weighing the costs and benefits of increasing one activity at the expense of another.
The Tennessee Walking Horse Industry involves high-dollar activity at the expense and welfare of their horses -- who, by the way, they profess their love for.
These data therefore suggest a regulatory function unique to the Dβ1 23RSS which, in the germline situation, might anchor RAG1/2 catalytic activity at the expense of the neighboring Dβ1 12RSS.
This gap of information precludes effective strategies toward implementing the regeneration activity at the expense of fibro-adipogenesis.
Based on these findings, we suggest that brainstem pathways underlie many of the changes seen following severe motor stroke in humans, restoring muscle activity at the expense of imbalance between different muscle groups, and a decreased ability for fractionated output.
Why are mobile phone companies still being allowed to profit from criminal activities at the expense of their customers?
"We don't want to privilege two or three types of extracurricular activities at the expense of others," he said.
In his brief tenure, Mr. Kempthorne has done several good things for the parks — including killing a potentially harmful rewrite of the service's management policies that would have promoted inappropriate commercial and recreational activities at the expense of conservation.
Most theories of motivation, including Self-Determination Theory (SDT), focus mainly on students' reasons for participating in activities, at the expense of a focus on reasons for non-participation.
Many studies show that natural disasters are strongly correlated with an increase of workforce, including children, and more hours devoted to off-farm activities at the expense of lower wages (Jalan and Ravallion 1999; Beegle et al. 2003; De Janvry et al. 2006; Santos 2007; Baez and Santos 2007).
