The phrase "a study is needed" is correct and usable in written English.
It can be used when indicating that further research or investigation is required on a particular topic or issue.
Example: "In order to understand the long-term effects of the treatment, a study is needed to gather more data."
Alternatives: "research is necessary" or "an investigation is required."
Also a study is needed on the minimum, maximum and an optimal number of nodes needed to achieve the said intrusion detection.
Thus, a study is needed which develops a model of LC for each type of vehicles, or rather, between pairs of different vehicle types.
Therefore, a study is needed to closely examine how families go through the legal process of early intervention and interact with their service providers and to carefully listen to the voices of families throughout the process in an attempt to note the quality of the family's early intervention participation.
At this point in time, a study is needed to derive a model, which could measure the IT convergence level by systematically and comprehensively understanding the actual condition of the IT convergence between various industries including IT and manufacturing, and to objectively compare them.
Landrigan agrees that such a study is needed.
Apart from the clinical effectiveness, a study is needed to explore the costeffectiveness of the treatments.
But he said he decided that a study was needed after talking with protesters objecting to the association's policy discouraging such therapies.
This could for example facilitate the determination if a rest study is needed after a stress study, but this needs to be further tested.
The assessment of whether a rest study is needed is usually made by a physician.
For a better understanding of the pathogenesis of this injury, a prospective study is needed.
A larger study is needed to validate our findings, which might require a multi-institutional effort.
