Sentence examples for essential and only from inspiring English sources

Accountability is essential, and only when teachers themselves push to eliminate mediocrity in their ranks will the standing of the profession itself improve in the public's eyes.

The main concern of the present study is that implementation of non-adiabatic absorbers in air-cooled type double effect ammonia/salt absorption refrigeration systems is essential, and only under non-adiabatic absorption conditions can the double effect ammonia/salt system realize miniaturization.

For E. coli, RF1 has been reported to be essential, and only conditionally lethal knockouts have been described.

The challenge for regulators and citizens is complex but essential – and has only just begun.

Such a profile when obtained for the known essential and non-essential genes in E. coli showed expression in about 89% of the conditions for the essential genes and only 29% of the conditions for the non-essential genes.

Lemma 4.6 φ is essential if and only if the set-valued mapping F is lower semicontinuous on φ.

The optimal control problem (P) associated with f is essential if and only if (S Yrightarrow2^{mathcal{U}[0,T]}) is lower semicontinuous at (fin Y).

The sets, for, that are nonempty, are exactly the Nielsen root class of at and a class is essential if and only if is nonempty for every map homotopic to.

Remark 3.1 (1) It is easy to see that the problem q ∈ M is essential if and only if the mapping Λ : M ⇉ X × Y is lower semicontinuous at q. (2) For two closed e 1 ( q ) ⊂ e 2 ( q ) ⊂ Λ ( q ), if e 1 ( q ) is essential, then e 2 ( q ) is also essential.

Remark 3.1 (1) It is easy to see that the problem q ∈ M is essential if and only if the mapping F : M ⇉ X × Y is lower semicontinuous at q. (2) For two closed e 1 ( q ) ⊂ e 2 ( q ) ⊂ F ( q ), if e 1 ( q ) is essential, then e 2 ( q ) is also essential.

The DEG [ 12, 13] is the first database of essential genes, and only collects genes determined by genome-wide experiments.