The phrase "an essential node" is correct and usable in written English.
It can be used in contexts where you want to emphasize the importance of a particular point or element within a system or network.
Example: "In our research, we identified an essential node that connects various data streams, facilitating better analysis."
Alternatives: "a crucial point" or "a key element".
It represents therefore an essential node in the network that ultimately controls gaze.
It has also been shown to be an essential node in the vocalization circuitry, since when PAG is lesioned, individuals exhibit mutism (Esposito et al., 1999; Jurgens, 1994; Jurgens, 2002).
For instance, Table 1 showing conceptual paths for the "Connected Homicides?" use case suggests that social media account names may be an essential node for inferring information about phone content, albeit with a low confidence.
GlobalGathering, an essential node in the UK festival circuit, has officially announced that there will be no 2015 iteration of the event as organizers return to the drawing board to rejig their operations for the future.
It's a subtle groover of a tune, fit for somewhere between a laid back pool party and some fancy clothes shop I'm too poor to go to, but it's an essential node in the pantheon of poppy downtempo.
The weekly club night, now based at The Dragonfly in Hollywood, turns 16 this week and celebrates its influence on generations of junglists as it has evolved into an essential node in the international dance circuit.
While node degree often proves to identify critical network elements [15], a highly essential node in the brain network may not necessarily have ubiquitous connections to other nodes in the network as assumed by degree centrality.
We define the weight of each link to be a function of the packet loss ratio and hence aim to derive routes which connect all essential nodes using most reliable links.
This finding gave credence to the 'frontal lobe hypothesis'15, and theoretical frameworks such as the higher order16 and global workspace theories17,18 which postulate PFC as an essential anatomical node mediating consciousness.
This overall finding challenges the traditional view according to which the right frontal cortex is an "essential cortical node" in the mentalizing network since it might be expected that massive surgical excisions of this brain area would have induced more definitive impairments.
We presume genes whose relative expression is consistent amongst single embryos have a higher likelihood to be essential nodes in a gene regulatory network, which is expected to respond to perturbations in a consistent and predictable manner.
