Community Content
Does visual perception in virtual reality differ from reality?
Method To eliminate the technical factors that would influence gaze results, the eye-tracking devices chosen in this study for R and VR were developed and constructed by the same company (SensoMotoric Instruments, Germany). The eye-tracking technology and the level of accuracy in both conditions were therefore assumed to be the same. Next, 21 young subjects (age from 19 to […]
A simple model of convection to study the atmospheric surface layer
Since being immortalised in Hollywood film, “the butterfly effect” has become a commonplace concept, despite its obscure origins. Its name derives from an object known as the Lorenz attractor, which has the form of a pair of butterfly wings. It is a portrait of chaos, the underlying principle hindering long-term weather prediction: just a small change in initial conditions leads […]
Trampoline parks improve strength and balance
Jumping on a trampoline can be a fun, enjoyable, and attractive activity for many. This may be why trampoline parks are becoming very popular around the world, providing recreational facilities for children and adults to enjoy jumping. While there have been safety concerns related to accidents and injuries occurring at trampoline parks, there is growing evidence of the beneficial effects […]
Strengthen Leg Muscles to Relieve Low Back Pain
Chronic low back pain is a common problem among recreational runners, affecting approximately one in seven runners. Clinically, there is no specific protocol to treat low back pain for runners. Physiotherapists generally adopt exercise protocols targeting different back muscles in the same way as they treat other patients with back pain. Some exercises train the global, bigger muscle groups responsible […]
Synergy from reproductive division of labor and genetic complexity drive the evolution of sex
Why sex exists? Sex is ubiquitous among living organisms, but the rise of sexual reproduction is a polemic subject in evolutionary biology and no broad consensus has emerged yet. Diverse concepts have been used to explain the ubiquity of sex and its success in biological evolution, but none passed the experimental tests of computer simulations of evolution demonstrating that sexual […]
Charpy impact behaviour of austenitic stainless steel welded joints
Austenitic stainless steels are used in diverse fields such as chemical and petrochemical industries, marine structures, nuclear and agri-food sectors, etc. This is due to their excellent ductility, high notch toughness, corrosion resistance, and good formability. The fusion zone in their welded joints has a duplex structure consisting of austenite and ferrite phases. The ferrite phase has the beneficial role […]