Based on the recent QSO surveys it is shown that, contrary to the widespread notion, high-luminousity QSOs are at least as numerous in the nearby universe as the ultraluminous far-infrared galaxies (ULIGs). Therefore, the fraction of ULIGs that have got a hidden quasar at the nucleus, for example in the dust shrouded phase, cannot be overwhelmingly large.

Department of Cardiac, Thoracic and Vascular Sciences, University of Padua, Padua, Italy; Department of Internal Medicine, Samara State Medical University, Samara, Russian Federation, Russia; Hammersmith Hospital, Imperial College NHS Trust, London, UK; Cardiologie–CHU Rennes et LTSI INSERM 1099–Université Rennes-1, France; Departments of Cardiology, University of Liège Hospital, GIGA Cardiovas...

stem cells are cells with the ability to divide for indefinite periods and to give rise to specialized cells.  stem cell therapy has now been emerged as an extraordinary promise to treat a wide range of diseases and conditions.  however, except blood stem cell transfer by bone marrow transplant which has been used as an standard practice for more than 50 years, nearly all of therapeutic potenti...

While deep learning has led to significant advances in visual recognition over the past few years, such advances often require a lot of annotated data. While unsupervised domain adaptation has emerged as an alternative approach that doesn’t require as much annotated data, prior evaluations of domain adaptation have been limited to relatively simple datasets. This work pushes the state of the ar...

UNITED KINGDOM John Costello Senior Lecturer, University of Manchester Bridget Johnston Reader in Palliative Care, University of Dundee, School of Nursing and Midwifery, Dundee Daniel Kelly Royal College of Nursing Professor of Nursing Research, School of Nursing & Midwifery Studies, Cardiff University Diane Laverty Nurse Consultant in Palliative Care, St Joseph’s Hospice, London Carole Mula Ma...

BACKGROUND Walking and cycling to school provide a convenient opportunity to incorporate physical activity into an adolescent's daily routine. School proximity to residential homes has been identified as an important determinant of active commuting among children. The purpose of this study is to identify if distance is a barrier to active commuting among adolescents, and if there is a criterion...