- Research Article
- 10.1640/0002-8444-110.2.70
First Evidence of Naturalization of the Black Tree Fern, Cyathea medullaris, in Madeira Island (Portugal)
- May 28, 2020
- American Fern Journal
- Riccardo Jesu + 1 more +1
Publications from 2021 to 2026
Showing 4 of 4 papers
First Evidence of Naturalization of the Black Tree Fern, Cyathea medullaris, in Madeira Island (Portugal)
Age-Related Differences in Executive Functions Within High-Level Youth Soccer Players
Background: When measuring executive functions (EF), it is common for athletes to be assessed on their ability to detect and process explicit sources of information. Yet not all of the information is perceived explicitly in an environment. Aim: This study aimed to include a new assessment that measures the impact of implicitly perceived congruent and incongruent visual precues on response times. Method: Seventy-four male soccer players: U12 (n=15), U13 (n=17), U17 (n=21) and U19 (n=21) representing a German 1st league club were assessed on four cognitive tasks. Results: The MANOVAs revealed a multivariate effect of age group on a reactive stress tolerance task (F(6,140)=11.670, p<0.001, ES=0.38) and a Stop Signal Reaction Time task (F(6,144)=6.142, p<0.001, ES=0.20). A one-way ANOVA revealed an age group effect for response accuracy in a multiple-object-tracking task (F(3,74)=4.05, p=0.01, ES=0.14). Lastly, a within-subjects effect of congruency on the implicit precued task (F(1,74)=51.32, p<0.001, ES=0.41) and a between-subjects effect of age group (F(3,74)=4.30, p=0.008, ES=0.15) was observed. Interpretation: The results provided support for including an implicit precueing task, while the overall testing demonstrated that the magnitude of the increase in EF performance between ages was greater across the younger age groups compared to the older age groups.
Read moreFabrizio Foni, Fantastico Salgari. Dal « vampiro » Sandokan al « Giornale Illustrato dei viaggi »
Salgari unheimlich ? Non par vero. Si ricordano, tra la spuma delle onde, immagini sfocate di vari corsari colorati che seguono nella notte il solco della nave del loro nero fratello. Immagini piuttosto da romanzo gotico rivisto e corretto alla marinara. Per il resto, difficile pensare a Salgari e associarvi spontaneamente nozioni più o meno todoroviane di esitazione, di imprecisione, di incertezza, di dubbio irrisolvibile tra il reale e il soprannaturale. Molto invece di solido, di concreto,...
Read moreThe Bluewater Tower Wishbone Mooring System
Abstract The "TOWER WISHBONE MOORING SYSTEM" – a Bluewater concept, is particularly suited to marginal oil field developments in areas with moderate seas and shallow to medium water depths, or where exceptional conditions call for disconnection of the tanker at short notice. Such areas could be those where typhoons occur, or where icebergs or irregular ice coverage may endanger the tanker. Application of a Tower Wishbone Mooring as a single point mooring for a storage or floating production system eliminates many of the drawbacks of previous SPMs. Those systems usually incorporated a CALM or SALM buoy with the tanker moored via a rigid arm. Elasticity was provided by the buoy's anchoring with the accompanying inconvenience of underwater articulations and/or flexible flowlines. The Bluewater system is based on the principle of the tanker being moored to a rigid jacket via flexible yokes. Gravity weights incorporated in the yokes are suspended from the jacket via tension members attached to a turntable, thereby allowing the moored tanker to weathervane.
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