Abstract: In this study, we propose a novel adjustable rotational half-dome mode conversion for a single-mode fiber (SMF) to generate linearly polarized first-order mode (LP11 mode) and orbital ...

Dec 18 (Reuters) - U.S. Department of Homeland Security Secretary Kristi Noem said late on Thursday that she has instructed U.S. Citizenship and Immigration Services (USCIS) to pause the DV1 program.

President Donald Trump suspended the green card lottery program on Thursday that allowed the suspect in the Brown University and MIT shootings to come to the United States. Homeland Security Secretary ...

Catalytic dry reforming of methane (DRM) offers a promising strategy for the sustainable utilization of greenhouse gases, CH 4 and CO 2. However, its practical application has long been hampered by ...

Boston Mayor Michelle Wu said the city is extending a program that aims to revitalize the downtown by converting vacant office buildings into housing projects for another 12 months. The city’s office ...