The phrase "assiduously maintained" is correct and usable in written English.
It can be used to describe something that is carefully and persistently kept or upheld over time.
Example: "The garden was assiduously maintained, showcasing a variety of vibrant flowers and neatly trimmed hedges."
Alternatives: "diligently kept" or "meticulously preserved".
Mr. Milken's decision to plead guilty was an abrupt turnabout for the financier, who had assiduously maintained his innocence throughout more than three years of investigations.
Because business schools are generally dedicated to narrow knowledge fields and opposed to integrative knowledge, they have assiduously maintained two separate disciplines in marketing and strategy to the benefit of no one.
Take a few laps around the assiduously maintained Jogger's Park - entrance fee of 2 rupees, about 4 cents - then follow the parade of families and couples up the Carter Road Promenade, which has broad views of the Arabian Sea.
But he has assiduously maintained his links to the Republican party.
One also hopes that viewers will understand more deeply the family connections that were an intrinsic part of that world, connections Wharton assiduously maintained during the many years she lived in France, from the photographs, family portraits and landscape on display in the Library's Peluso Family Exhibition Gallery".
The fibroblasts, however, embedded within the interior of the tissue, assiduously maintain the integrity of the structure by producing the components of the extracellular matrix (e.g., collagens, elastin, fibronectin, and proteoglycans) and when required, migrate to sites of injury to proliferate and produce large amounts of matrix [60], [62].
Since Janice Hadda's 1998 biography people have come to realise that Singer, far from being the twinkly, ascetic old folklorist and chronicler of the Yiddish tradition, was in fact a randy, calculating old git who cared at least as assiduously about maintaining his own good reputation as he did about his prose.
In time, art scholars, curators, artists and other ephemera aficionados began consulting the archives he assiduously accumulated and maintained, as did his students at the California College of the Arts in San Francisco, where he started teaching in 2000.
The indictment is the latest blow in a lengthy public fall triggered by last year's Panama Papers leaks, and comes as Sharif's family assiduously tries to maintain its influence in Pakistan.
59 Hypoglycemia, edema, and weight gain often accompany the use of insulin and TZDs 60, 62 and must assiduously be addressed when maintaining TZDs with insulin.
So here's the situation: Either the city puts up a lot more public toilets and maintains them more assiduously, or it leaves the streets to serve as de facto toilets and keeps sending out sanitation crews in hazmat suits to power-wash them.
