An analytical approximate technique for conservative nonlinear oscillators is proposed. This method is a modification of the generalized harmonic balance method in which analytical approximate solutions have rational form. This approach gives us not only a truly periodic solution but…

The main aim of this study was to determine if short-term post exercise recovery, cycling performance and muscle damage were altered when consuming a carbohydrate-only beverage (CHO, 7% carbohydrate) versus a carbohydrate and casein protein beverage (CHO+P, 7% carbohydrate and…

Can you imagine a useful task you would like a social robot to perform for you? This paper presents an Internet survey where participants were asked this question to identify applications for social robots. The applications mentioned by the participants…

El objetivo de este estudio teórico fue valorar el modelo conceptual, la carga, la interpretabilidad, los efectos suelo y techo, la fiabilidad, la validez y la sensibilidad al cambio de los tests de velocidad de andar como medida de limitaciones…

The design and analysis of research may cause systematic gender dependent errors to be produced in results because of gender insensitivity or androcentrism. Gender bias in research could be defined as a systematically erroneous gender dependent approach related to social…

The aim of this study was to compare the fighting strategies between medalists and non-medalists in Taekwondo. A total of 107 matches from the 16th Asian Games had been video-taped for notational analysis. Round house kick was the most frequently…

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…

The second-order harmonic balance method is used to construct three approximate frequency-amplitude relations for a conservative nonlinear singular oscillator in which the restoring force is inversely proportional to the dependent variable. Two procedures are used to solve the nonlinear differential…

Nickel nanoparticles were found to promote the Wittig-type olefination of primary alcohols with phosphorus ylides. The latter can be prepared from the corresponding phosphonium salts with nBuLi or in situ generated with lithium metal. The methodology is especially efficient for…

The taxonomy of European Eristalinus syrphid flies is reviewed. New data on their life histories, biological notes and a key to species using pupal characters are provided. The larvae and puparia of Eristalinus taeniops (Wiedemann, 1818) and Eristalinus megacephalus (Rossi,…