Sentence examples for requirement existed for from inspiring English sources

With the introduction of the Douglas C-54 Skymaster four-engined transport aircraft, the United States Army Air Forces, observing that conventional gliders then in service would be an inefficient use of the C-54's power and capacity, determined that a requirement existed for a new, much larger assault glider.

Since development of reporting guidelines is complex and time-consuming, developers should first consider whether a requirement exists for a new or extended reporting guidelines, or if the existing ones should continue to be used.

Although using a prototrophic marker requires working with a strain that carries the corresponding auxotrophic mutation, no such requirement exists for drug resistance markers.

No such requirement exists for car rental companies, and consumer advocates argue that this puts consumers at risk.

By law KPK commissioners must recuse themselves while under investigation (no such requirement exists for police who are suspects).

No such requirement exists for private student loans.

To ensure a high fidelity of gene expression patterns in embryos a very strict functional requirement exists for the interaction of cis-regulatory modules (CRMs) in the genome of animals during development [1], [2], [3], [4].

An urgent requirement exists for new prognostic and predictive assays in breast cancer.

This experiment demonstrates that a cell-autonomous requirement exists for Wip1 expression to activate STAT5 in mammary epithelial cells.

For certain pesticides, a requirement exists for neurotoxicity tests in adult animals, but developmental neurotoxicity is usually not considered when determining pesticide safety.

Our experiments showed that a minimum of about 80 secretory cells are needed for females to store a normal number of sperm, indicating that a quantitative requirement exists for the products of these cells.