Extra-skeletal Ewing’s sarcoma is a rare soft tissue malignant neoplasm, morphologically indistinguishable from skeletal Ewing’s sarcoma. The usual sites of involvement are the soft tissues of para-vertebral region, chest wall, and lower extremity. Extra-skeletal Ewing’s sarcoma is rare in the head and neck region and very few cases are reported in the parotid gland. The cytological features...

Models with extra dimensions have changed our understanding of the hierarchy problem. In general, these models explain the weakness of gravity by diluting gravity in a large bulk volume, or by localizing the graviton away from the standard model. In this paper, we show that the warped geometries necessary for the latter scenario can naturally induce the large volumes necessary for the former. W...

In any extra-uterine gestation at or beyond the fourth month we have to determine one special point as to its nature, viz.,? Is the gestation intra-peritoneal or extra-peritoneal ? The most generally held opinion hitherto has been that such gestations were intra-peritoneal, although the proof for this has been of the most vague character. There is no doubt that the foetus is often intraperitone...

Extra Status and Extra Stress: Are Promotions Good for Us? Promotions ordinarily involve higher wages and greater privileges; but they also often involve increased responsibility, accountability and work hours. Therefore, whether promotions are good for workers’ wellbeing is an empirical question. Using high-quality panel data we estimate preand post-promotion effects on job attributes, physica...

in this work we consider conjugacy of elements and parabolic subgroups‎ ‎in details‎, ‎in a new class of artin groups‎, ‎introduced in an earlier work‎, ‎which may contain arbitrary parabolic subgroups‎. ‎in particular‎, ‎we find‎ ‎algorithmically minimal representatives of elements in a conjugacy class‎ ‎and also an algorithm to pass from one minimal representative to the others‎.

Purpose: Considering the role and importance of professional ethics in all organizations, including educational organizations, the purpose of this study was designing a pattern of extra-organizational professional ethics of deputies and heads of education districts. Methodology: The present study in terms of purpose was applied and in terms of implementation method was combined (qualitative an...

Most secure routing proposals require the existence of a global public-key infrastructure (PKI) to bind a public/private key-pair to a prefix, in order to authenticate route originations of that prefix. A major difficulty in secure routing deployment is the mutual dependency between the routing protocol and the establishment of a globally trusted PKI for prefixes and ASes: cryptographic mechani...