Tourism is one of the sectors that have been hit hard during current Covid-19 pandemic. However, in 2021 tourism sector slowly rising marked by number tourist attractions are starting to open public with implementation strict health protocols. practice there still many cases violations protocols various attractions, ranging from undisciplined use masks, not keeping a distance (social distancing...

Charge-stabilized colloidal spheres dispersed in weak 1:1 electrolytes are supposed to repel each other. Consequently, experimental evidence for anomalous long-ranged like-charged attractions induced by geometric confinement inspired a burst of activity. This has largely subsided because of nagging doubts regarding the experiments’ reliability and interpretation. We describe a new class of ther...

We directly probe the microscopic structure, connectivity, and elasticity of colloidal gels using confocal microscopy. We show that the gel is a random network of one-dimensional chains of particles. By measuring thermal fluctuations, we determine the effective spring constant between pairs of particles as a function of separation; this is in agreement with the theory for fractal chains. Long-r...

There are two main theories as to what causes homosexual attractions. One is that a homosexual orientation is essentially dictated by genetic and or biological factors—put simply, that people are “born gay.” The other theory is that homosexual attractions develop as primarily as a result of psychological and environmental influences and early experiences. In the public square, the latter theory...

This paper explores the effects of information sharing on diversity and adaptivity of behaviors in competitive populations. We focus on the information supplement of congestion status at the events or theme parks. We have conducted a multi-agent simulation, in which each agent visiting the attractions is able to avoid the crowded ones by using the shared information among agents with a certain ...

Like-charged colloidal spheres dispersed in de-ionized water are supposed to repel each other. Instead, artifact-corrected video microscopy measurements reveal an anomalous long-ranged like-charge attraction in the interparticle pair potential when the spheres are confined to a layer by even a single-charged glass surface. These attractions can be masked by electrostatic repulsions at low ionic...