Weather Routing Algorithm development

Ανάπτυξη αλγορίθμου και εφαρμογής weather routing για πλοίο Containership μεγέθους panamax. Τρεξιμο δοκιμαστικών σεναρίων και εξαγωγή συμπερασμάτωνDevelopment of a eather routing algorithm and application. Test runs and conclusions.Ιωάννης Κ. Βογιαζόγλο

Evaluating voluntary aloneness in childhood: Initial validation of the Children’s Solitude Scale

This work intends to psychometrically evaluate the newly developed Children’s Solitude Scale (CSS), a measure of voluntary aloneness in childhood. The scale assesses individual differences on what children prefer to do when they want to be alone, a rather neglected, although important developmental issue. Participants were 833 fourth and sixth graders from Athens, Greece. Confirmatory factor analysis indicated four factors, although with a less-than-optimal fit: Self-Reflection, Autonomy/Privacy, Activities and Concentration. The scale showed adequate internal consistency and test-retest reliability as well as convergent and divergent validity (i.e., positive association with positive attitude towards aloneness and ability to be alone, no association with negative attitude towards aloneness, and low positive correlation with loneliness and social dissatisfaction). The results indicated the suitability of the CSS to assess reasons or motives for solitude during middle and late childhood and the necessity to further examine the structure of this type of solitude experiences in this age period. © 2015 Taylor & Francis

Vitamin B12 status and rate of brain volume loss in community-dwelling elderly

OBJECTIVES:: To investigate the relationship between markers of vitamin B12 status and brain volume loss per year over a 5-year period in an elderly population. METHODS:: A prospective study of 107 community-dwelling volunteers aged 61 to 87 years withou