Barred Galaxies in the Coma Cluster

We use ACS data from the HST Treasury survey of the Coma cluster (z~0.02) to study the properties of barred galaxies in the Coma core, the densest environment in the nearby Universe. This study provides a complementary data point for studies of barred galaxies as a function of redshift and environment. From ~470 cluster members brighter than M_I = -11 mag, we select a sample of 46 disk galaxies (S0--Im) based on visual classification. The sample is dominated by S0s for which we find an optical bar fraction of 47+/-11% through ellipse fitting and visual inspection. Among the bars in the core of the Coma cluster, we do not find any very large (a_bar > 2 kpc) bars. Comparison to other studies reveals that while the optical bar fraction for S0s shows only a modest variation across low-to-intermediate density environments (field to intermediate-density clusters), it can be higher by up to a factor of ~2 in the very high-density environment of the rich Coma cluster core.Comment: Proceedings of the Bash symposium, to appear in the Astronomical Society of the Pacific Conference Series, eds. L. Stanford, L. Hao, Y. Mao, J. Gree

BASS. XXX. Distribution functions of DR2 Eddington ratios, black hole masses, and X-ray luminosities

Galaxie

PHANGS-ALMA data processing and pipeline

Instrumentatio

The impact of COVID-19 on university teaching and learning: Evidence for the central importance of student and staff well-being

The Covid-19 pandemic prompted a rapid shift to online education. The 4TU.Centre for Engineering Education (4TU.CEE), initiated thewriting of a white paper. The authors present a research synthesis conducted across the four Universities of Technology in the Netherlands (hereafter the 4TUs). They also reflect on what the Covid-19 pandemic has brought to our education system. Based on the synthesis results, they provide policymakers with implications relevant to the (immediate) responseto continued pandemic-related restrictions. At the same time, they signal that digital education offers new opportunities for both scaling up and quality improvement to actively shape a preferred future for teaching.Design AestheticsTeaching & Learning Service

Myelin/oligodendrocyte glycoprotein-induced autoimmune encephalomyelitis in common marmosets : the encephalitogenic T cell epitope pMOG24-36 is presented by a monomorphic MHC class II molecule

Immunization of common marmosets (Callithrix jacchus) with a single dose of human myelin in CFA, without administration of Bordetella pertussis, induces a form of autoimmune encephalomyelitis (EAE) resembling in its clinical and pathological expression multiple sclerosis in humans. The EAE incidence in our outbred marmoset colony is 100%. This study was undertaken to assess the genetic and immunological basis of the high EAE susceptibility. To this end, we determined the separate contributions of immune reactions to myelin/oligodendrocyte glycoprotein (MOG) and myelin basic protein to the EAE induction. Essentially all pathological features of myelin-induced EAE were also found in animals immunized with MOG in CFA, whereas in animals immunized with myelin basic protein in CFA clinical and pathological signs of EAE were lacking. The epitope recognition by anti-MOG Abs and T cells were assessed. Evidence is provided that the initiation of EAE is based on T and B cell activation by the encephalitogenic phMOG14–36 peptide in the context of monomorphic Caja-DRB*W1201 molecules

Image-guided Cryotherapy for Musculoskeletal Tumors

Background: This article represents a review about the use of image-guided cryotherapy in the treatment of musculoskeletal tumor lesions. Cryotherapy is able to induce a lethal effect on cancer cells through direct and indirect mechanisms. In this manuscript, we combined our experience with that of other authors who have published on this topic in order to provide indications on when to use cryotherapy in musculoskeletal oncology. Discussion: Image-Guided percutaneous cryotherapy is a therapeutic method now widely accepted in the treatment of patients with musculoskeletal tumors. It can be used both for palliative treatments of metastatic bone lesions and for the curative treatment of benign bone tumors such as osteoid osteoma or osteoblastoma. In the treatment of bone metastases, cryotherapy plays a major role in alleviating or resolving disease-related pain but it has also been demonstrated that it can have a role in local disease control. In recent years, the use of cryotherapy have also expanded for the treatment of both benign and malignant soft tissue tumors. Conclusion: Percutaneous cryotherapy can be considered a safe and effective technique in the treatment of benign and malignant musculoskeletal tumors. Cryotherapy can be considered the first option in benign tumor lesions such as osteoid osteoma and a valid alternative to radiofrequency ablation. In the treatment of painful bone metastases, it must be considered secondarily to other standard treatments (radiotherapy, bisphosphonate therapy and chemotherapy) where they are no longer effective in controlling the disease or when they cannot be repeated (for example radiotherapy)