While security is a critical component of information systems, at times it can be frustrating for end users. Security systems exist to minimise the risks of allowing users to access and modify data, but rarely do they consider the risks of not granting access. This paper describes an access control system which is optimistic, i.e. it assumes accesses are legitimate , and allows audit and recove...

Purpose is the development of mathematical models to evaluate deformation parameters rock mass-well geological and engineering system within anisotropic media. Methods. Both neural modeling a stress state under conditions uncertainty has been applied for studies. From viewpoint modeling, analysis probability factors, complicating drilling, should involve number assumptions strength characterist...

Lichens, fungi, and bryophytes are frequently referred to as lower plants, non-vascular plants, or cryptogams. All terms are partially incorrect but used for convenience. Strictly speaking only bryophytes are plants. Although lacking conductive tissues, they are photosynthetic. Fungi are not photosynthetic, typically penetrating their substrate as threads of cells. Lichens are fungi in close as...

We report a rare case of a 40-year-old man who had suffered from a metallic foreign body which had punctured from the anterior chest wall into the left ventricle caused by trauma without cardiac tamponade. Surgery was performed. Based on the operation findings, the foreign body was diagnosed as a metallic rusted object partially retained in the posterior papillary muscle. It is very rare partic...

BACKGROUND To report a surgical method for treating corneal oedema in a case of late-onset Descemet membrane detachment after penetrating keratoplasty. CASE PRESENTATION A 55-year old patient presented with sudden visual loss in his left eye 28 years after penetrating keratoplasty for keratoconus. Slit-lamp biomicroscopy revealed a distortion of the corneal graft anatomy with protrusion of th...

Regulation of biological processes through the use of genetic elements is a central part of biological research and also holds great promise for future therapeutic applications. Oligonucleotides comprise a class of versatile biomolecules capable of modulating gene regulation. Gene therapy, the concept of introducing genetic elements in order to treat disease, presents a promising therapeutic st...

BACKGROUND Very few cases of severe penetrating injuries to the skull base with a seemingly innocuous object have been described in the literature. Of the cases reported, only ten involve a penetrating screwdriver. However, the choice of therapeutic management, whether it be emergency surgical or non-surgical removal of the penetrating object as well as the selected surgical approach remain qui...