The endo-diastereo- and enantioselective 1,3-dipolar cycloaddition of azomethine ylides and electrophilic alkenes is efficiently catalysed by chiral phosphoramidite-silver(I) perchlorate complexes. The reaction allows the presence of different types of substituents in the 1,3-dipole and can be applied to the synthesis…

This special issue of the Journal of Physical Agents is devoted to multi-robot systems. Some might perhaps argue that the term should have been ”multi-agent systems” or ”physical multi-agent systems”, in accordance with the title of the journal. In any…

This special issue of the Journal of Physical Agents is devoted to human interaction with domestic robots. The form, features and future, of domestic robotic devices, from entertainment-based agents through to robotic cleaners, companions, assistants and helpers, are considered and…

Two new species of Enclisis Townes, 1970 from Spain are described and illustrated: E. dichroma sp. n. and E. schwarzi sp. n. The new species are distinguished from the closest species E. infernator and E. ornaticeps by head and leg…

In a previous study, we investigated, at a laboratory scale, the chemical activation of two different carbon fibres (CF), their porosity characterization, and their optimization for hydrogen storage [1]. In the present work, this study is extended to: (i) a…

Rhythmites in pelagic sediments can include information on paleoclimate and with orbital cycles. This paper documents and interprets an unusual rhythmic succession from a cool-water shallow-marine shelf that includes features of Mediterranean-type ramps and open-ocean-type ramps. In the subsiding southwestern…

Este ensayo aborda el siguiente interrogante: si, como famosamente sostuvo John Rawls, la justicia es la virtud fundamental de las instituciones sociales, ¿cómo debemos entender al derecho de los contratos? En este ensayo sitúo el derecho de los contratos en…

Background: Education is a basic prerequisite for d/Deaf people’s health. Deaf education varies considerably from country to country and we still know very little about the reasons for such variation. Objective: To identify international megatrends that influence the current Deaf…

A perspective of evaluation based on authentic assessment highlights the ethical and aesthetic aspects of education as well as the learning aspect of the assessment, which is expressed in a dialogic mode and offers a sharing process that transforms the…

The purpose of this study was to examine perceived and desired parental involvement in female sports in Greece. The parental involvement in sport questionnaire was administrated to 383 female former and current athletes (mean age 20.33 years, competitive experience 7.10…