A rare case of squamous cell carcinoma ex pleomorphic adenoma in maxillary sinus is presented. The patient is a 50-year-old woman presenting with a slow-progressive swelling in left side of her face that she has noticed 2 years earlier. The lesion was not painful and caused asymmetry and mild exophthalmos. Microscopic examination revealed that the tumor was composed of two components partly of ...

Venture capital (VC) is a relatively recent addition to the US national system of innovation (NSI). Tracing the history of the VC industry in the US provides an interesting example of how NSIs can add new institutions, and in the process be transformed. The history encompasses important exogenous events, endogenous developments, and actions by individual actors. The story of the development of ...

Background: There is an increasing popularity of waterpipe tobacco smoking (WTS) in youth and even inathletes worldwide. Despite the existence of evidence of the harmful effects of hookah smoke on varioussystems of the body, especially the cardiovascular system, its simultaneous effect with exercise training hasnot been well studi...

background: the rate of nosocomial infection appears to depend on whether it is calculated using the center for disease control (cdc) or carrier state criteria. the objective of this study was to differentiate between primary endogenous (pe), secondary endogenous (se) and exogenous (ex) infections, and to compare this classification with cdc criteria for nosocomial infections. methods: children...

Institutions, Markets and Men’s and Women’s Wage Inequality: Evidence from Ukraine ∗ Ukraine, the second largest country in the former Soviet bloc, is facing the challenge of rallying popular support for major structural reforms. As in most developing economies, the “Orange Revolution” government’s success will depend on its ability to keep income distribution within an acceptable range. This p...

On December 2, when Venezuelans delivered President Hugo Chávez his first electoral defeat in nine years, most analysts were taken by surprise. According to o⁄cial results, 50.7 percent of voters rejected Chávez’s proposed constitutional reform, which would have expanded executive power, gotten rid of presidential term limits, and paved the way for the construction of a “socialist” economy. It ...

on the complex upper half-plane H, provably invariant under the linear fractional action of SL2(R), but it is oppressive to verify this directly. Worse, the goal is not merely to verify an expression presented as a deus ex machina, but, rather to systematically generate suitable expressions. An important part of this intention is understanding reasons for the existence of invariant operators, a...

The aim of this paper is to analyse the political, social and economic background of the divergence of Belarusian and Ukrainian transitions. We focus on Belarus in order to find explanation for questions such as why could Lukashenko remain the authoritarian leader of Belarus, while in Ukraine the position of the political elite had proved less stable and collapsed in 2004. On the theoretical fr...

These are but a few of the major problems the author had to tackle in writing this book, and he does justice to both sides of the arguments with unrelenting impartiality. The volume obviously is a survey-book for the non-professional public, nevertheless one would still prefer to have some of the author's own opinions instead of sweeping and often contradictory generalizations in an almost epig...