Abstract: A stable Cartesian grid staircase-free finite-difference time-domain formulation for arbitrary material distributions in general geometries is introduced. It is shown that the method ...

Ukraine’s Operation Spider’s Web may have fundamentally transformed the geometry of the battlefield, and potentially changed the face of war for years to come. This was a deep strike with few ...

Contribution from the School of Chemistry and Biochemistry and Center for Organic Photonics and Electronics, Georgia Institute of Technology, Atlanta, Georgia 30332-0400, USA; Department of Chemistry, ...

You must have a licence or certificate to do wall and floor tiling work. You need the required qualifications and experience before you apply. If you already hold a licence or certificate, use the ...

Demonstrators holding Basque and Catalan flags take part in a demo to support the Catalan referendum push in 2017. (Photo by GARI GARAIALDE / AFP) Spain has revived a push for Basque, Catalan and ...

Spain has failed to obtain the necessary unanimity to elevate Catalan, Galician and Basque into official languages of the European Union, as several member states raised concerns over the ...

Spain has revived a push for Basque, Catalan and Galician to be made official EU languages, despite a less-than-enthusiastic response from fellow European countries fearing a domino effect. After an ...

The rejection of Catalan as an official language in Brussels stands to trigger a political crisis in Madrid. In exchange for key support needed to form a new minority government in 2023, Spain’s Prime ...

Isabelle Kliger is a freelance writer specializing in food, travel, and culture, based out of Barcelona since 2010. A fan of all things local and sustainable, Isabelle likes to spend her time ...