past earthquakes have demonstrated that old rc bridges may be seismically vulnerable. bridge responses during the last decades illustrated the necessity of the seismic assessment of bridges especially those which were designed with old codes. in this research an existing concrete bridge representative of the most common bridges in the highway system in iran are studied. push over and nonlinear ...

This article proposes a reflection on the exclusion of particularly vulnerable human beings as a condition for the success of economistic culture and social organization. This fragility can depend on the body side as well as the social aspect: the effects of discrimination are identical. To react to a situation of injustice less and less tolerable, the biolaw touches -as in general the right, i...

The risk of fragility fractures exponentially increases with aging. Reduced mass and strength of both bone in osteoporosis and skeletal muscle in sarcopenia play a key role in the age-related incidence of fragility fractures. Undernutrition is often observed in the elderly, particularly in those subjects experiencing osteoporotic fractures, more likely as a cause than a consequence. Calcium (Ca...

Alopecia areata (AA) is a chronic, autoimmune disease. The main symptom is massive hair loss, localized or diffuse, in the scalp and the whole body. However, nails may also be involved, and brittleness, fragility and pitting can be signs of nail dystrophy in AA patients. Here, we report the case of a male patient with AA refractory to various treatments, including oral, topical and intralesiona...

As complex socio-technical systems composed of many interconnected parts, interacting in non-linear, dynamic, emergent and often unexpected ways Information Systems are fragile. In this paper we introduce the concept of antifragility as an alternative mean of apprehending the fragility of Information Systems and a novel way of dealing with risk, uncertainty and the unknown. Antifragility is the...

Dielectric spectroscopy was carried out on the van der Waals liquid, 1,1(')-di(4-methoxy-5-methylphenyl)cyclohexane (BMMPC) in the supercooled state at pressures up to 218 MPa. The excess wing in this type-A glass former exhibits a response to pressure and temperature changes that is identical to that of the primary structural relaxation peak, indicating that the two processes reflect correlate...

The Gilroy-Phillips model of relaxational jumps in asymmetric double well potentials, developed for the Arrhenius-type secondary relaxations of the glass phase, is extended to a formal description of the breakdown of the shear modulus at the glass transition, the α-process. The extension requires the introduction of two separate parts of the barrier distribution function f(V ), with a different...

In order to determine whether the relative rigidity of the hereditary spherocytosis (HS) red cell is due to membrane rididity or merely to an altered surface/volume ratio, we investigated the deformability of resealed red cell membranes from patients with HS. Whereas the osmotic fragility of intact red cells of HS patients showed the expected increase, the osmotic fragility of resealed HS membr...