Taxon-dependent effects of dispersal limitation versus environmental filters on bryophyte assemblages-Multiple perspective studies in land-bridge islands.

To explore the taxon-dependent contribution of dispersal limitation versus environmental filters to bryophyte assemblages. We investigated bryophytes and six environmental variables on 168 islands in the Thousand Island Lake,China. We compared the observed beta diversity with the expected values based on six null models (EE, EF, FE, FF, PE, and PF), detected the partial correlation of beta diversity with geographical distances.

Substrate of complex fractionated atrial electrograms: evidence by pathologic analysis.

Background: Ablation of complex fractionated atrial electrograms (CFAE) is an important adjunctive therapy in atrial fibrillation (AF). The present study was to elucidate the substrate underlying CFAE.

Methods: Nine adult mongrel dogs were involved in the present study.

Effect of epicardial fat pad ablation on acute atrial electrical remodeling and inducibility of atrial fibrillation.

Background: Atrial electrical remodeling (AER) is the underlying mechanism of atrial fibrillation (AF). The present study investigated the impact of epicardial fat pad (FP) ablation on acute AER (AAER) and inducibility of AF.

Methods And Results: AAER was performed in 28 mongrel dogs through 4-h rapid atrial pacing (RAP).