Cholesteric liquid crystals, also known as chiral nematics, possess a right-angle helicoidal structure with pitch in the submicrometer and micrometer range.Although the possibility of getting optical reorientation in this kind of materials has been considered since the discovery of giant optical nonlinearity in nematic liquid crystals, a significan
To endow the immune system with the capacity to fight cancer has always attracted attention, although the clinical results obtained have been until Easter recently disappointing.Cutaneous melanoma is a highly immunogenic tumor; therefore most of the attempts to produce cancer vaccines have been addressed to this disease.New advances in the comprehe
Abstract Background The presence of bone metastases has excluded participation of prostate cancer patients in exercise intervention studies to date and is also a relative contraindication to supervised exercise in the community setting because of concerns of fragility fracture.However, this group of patients often have developed significant muscle
Studies on underground (or clandestine forms of political struggle) remain largely unknown with just a few of them published.The study focuses on underground political work in southern Mozambique from the 1950s to the 1970s.The main argument that the study seeks to make is that despite the intensification of colonial exploitation for the benefit of
Tailings storage facilities (TSFs) are being built globally for containing the chief solid waste stream from mining industry.Catastrophic TSF breach accidents have occurred frequently since the beginning of the 21st century, causing severe impacts on the environment, economy and community GI Joe safety.The recent example is the 2019 Brumadinho acci