The phrase "appear to impede" is correct and usable in written English.
It can be used when discussing something that seems to obstruct or hinder progress or development.
Example: "The new regulations appear to impede the growth of small businesses in the area."
Alternatives: "seem to hinder" or "seem to obstruct".
Highly porous zirconia based thermal barrier coatings have recently been synthesised with zig-zag morphology pores which appear to impede heat flow through the thickness of the coating.
Although his condition did not appear to impede him on defense, Jeter went 0 for 5, failing to reach base for only the sixth time in 67 playoff games.
In our study, the lower, 3-mg dose of sumatriptan in DFN-11 did not appear to impede the overall therapeutic effect, and DFN-11 maintained an efficacy timecourse similar to SC sumatriptan 6 mg — a finding in accord with a previous report comparing 3 and 6 mg SC sumatriptan [20].
If your deck is at least 3 feet from the unit and does not appear to impede the airflow, either style will be fine.
In Drosophila, LRRK2 kinase has been shown to regulate the EndoA phosphorylation cycle, and pathogenic mutations appear to impede synaptic endocytosis [ 88].
While lower level anxieties (i.e. worry) may be conducive to screening adherence, as indicated in a recent study on the facilitating effects of worry in breast screening, levels perceived by females as extreme appear to impede screening [ 122].
It also appears to impede the growth of bacteria and fungi.
However, these same structures also appeared to impede those departments with previously high levels of informal participation.
Zeki Fryers was not punished when appearing to take down Walters when through on goal, before Michael Dawson appeared to impede Oussama Assaidi in the box.
The current administrative organization based on sector-specific responsibility appears to impede cross-sector coordination for integrating environmental concerns in urban development.
The incident wasn't a problem until Sky Sports' magazine show The Rugby Club uncovered footage of Healey kicking/tripping Elliot as the Sale winger appeared to impede Healey in a race to touch the ball down over the Sale line.
