We present a discussion on local quantum correlations and their relations with entanglement. We prove that vanishing coefficient of quantum correlations implies separability. The new results on locally decomposable maps which we obtain in the course of proof also seem to be of independent interest.
some old and new problems. Abstract. We outline a new approach to the characterization as well as to the classification of positive maps. This approach is based on the facial structures of the set of states and of the cone of positive maps. In particular, the equivalence between Schroedinger's and Heisenberg's pictures is reviewed in this more general… (More)
We present a partial characterization of matrices in M n (A) + satisfying the Størmer condition.
BACKGROUND Pectus excavatum (PE) is the most common chest wall deformity in adolescent life. Nuss procedure is a well-established technique for the repair of PE. The indication for correction is mainly medical aesthetic. Advantages of Nuss over conventional methods include reduced length of hospital stay, smaller incisions, and absence of need for… (More)
some old and new problems. Abstract. We outline the new approach to a characterization as well as to classification of positive maps. Our approach is based on the facial structures of the set of states and the cone of positive maps. The obtained characterization of positive maps is applied to a discussion on quantum correlations and entanglement.
The authors studied the influence of perception time on the quantified image quality of radiographs, using as an experimental basis the target presentation time during which there was no active involvement of the observer. No change in the influence on the observer was seen down to an observation time of 1 sec.; there was a slight but practically negligible… (More)
In a 47-year-old women two subarachnoid haemorrhages developed with paralysis of the right oculomotor nerve. A big aneurysm on the right internal carotid artery was closed with a clip from intracranial approach. Seven months later the left oculomotor nerve was paralysed without haemorrhage. Another operation was done on the contralateral side clipping the… (More)
A case of a previously healthy 51-year-old man, who was diagnosed clinically as having a posterior cranial fossa tumour. At operation this proved to be an abscess which was radically removed. Histological investigations showed the presence of a fungus which was identified as Candida albicans.
The authors describe a 37-year-old man suffering electric shock caused by high-voltage current 3 000 Volt. The shock caused a fall with severe craniocerebral injury with fracture of occipital squama and subacute epidural haematoma in the posterior cerebral fossa. The injury was associated with vascular disturbances of the brain and brain stem which caused… (More)