CMS physics technical design report : Addendum on high density QCD with heavy ions

Peer reviewe

Outcomes following surgery in subgroups of comatose and very elderly patients with chronic subdural hematoma

Increasing age and lower pre-operative Glasgow coma score (GCS) are associated with worse outcome after surgery for chronic subdural haematoma (CSDH). Only few studies have quantified outcomes specific to the very elderly or comatose patients. We aim to examine surgical outcomes in these patient groups. We analysed data from a prospective multicentre cohort study, assessing the risk of recurrence, death, and unfavourable functional outcome of very elderly (≥ 90 years) patients and comatose (pre-operative GCS ≤ 8) patients following surgical treatment of CSDH. Seven hundred eighty-five patients were included in the study. Thirty-two (4.1%) patients had pre-operative GCS ≤ 8 and 70 (8.9%) patients were aged ≥ 90 years. A higher proportion of comatose patients had an unfavourable functional outcome (38.7 vs 21.7%; p = 0.03), although similar proportion of comatose (64.5%) and non-comatose patients (61.8%) functionally improved after surgery (p = 0.96). Compared to patients aged < 90 years, a higher proportion of patients aged ≥ 90 years had unfavourable functional outcome (41.2 vs 20.5%; p < 0.01), although approximately half had functional improvement following surgery. Mortality risk was higher in both comatose (6.3 vs 1.9%; p = 0.05) and very elderly (8.8 vs 1.1%; p < 0.01) groups. There was a trend towards a higher recurrence risk in the comatose group (19.4 vs 9.5%; p = 0.07). Surgery can still provide considerable benefit to very elderly and comatose patients despite their higher risk of morbidity and mortality. Further research would be needed to better identify those most likely to benefit from surgery in these groups

Accuracy of the analytical demagnetization tensor for various geometries

We investigate the accuracy of the analytical expressions for the magnetostatic demagnetization tensor for three different geometries by comparing these to the dipole field at far-away distances. We consider a prism, tetrahedron and cylindrical tile geometry. We show that for the prism and tetrahedron tiles the median relative error compared to the dipole field reaches below 10−7 at 200 tile radii away from the generating tile, while the cylindrical tile has a median relative error of about 10−5 at this distance. Even at a distance of 104 tile radii the relative error is below 10−2 for all tiles, also when single precision is used to calculate the magnetic field. This shows that the demagnetization tensor is an accurate way of calculating the stray magnetic field also for far-away distances

SINUS LIFT AUGMENTATION USING PULP STEM CELLS: A CASE REPORT AND HISTOLOGICAL EVALUATION

Bone augmentation to reconstruct atrophic jaws provides the base for sufficient functional and aesthetic implant-supported oral rehabilitation. Although autografts are the standard procedure for bone grafting, the use of bone regeneration by using dental pulp stem cell is an alternative that open a new era in this field. One patient undergoes to sinus lift elevation by means pulp stem cells gentle poured onto collagen sponge. Histological sampling was performed after 6 months. Results clearly demonstrated new bone formation after dental pulp stem cells grafting after sinus lift. This report demonstrated that stem cells derived from dental pulp poured onto collagen sponge is a useful method for bone regeneration in atrophic maxill