klinefelter syndrome includes a group of chromosomal disorders with at least one  additional  x  chromosome  in  male  karyotype  (46,xy).  up  to  now, different dental manifestations such as taurodontism, congenital absence of permanent teeth, shovel incisors, occlusal anomalies and increased permanent tooth size have been reported. a case of klinefelter syndrome with very rare dental feature...

*We would like to thank Bengt Holmstrom, Jozsef Sakovics, and Jonathan Thomas for helpful conversations. We acknowledge financial support from the U.S. National Science Foundation through the National Bureau of Economic Research; the Leverhulme Trust; and the U.K. Economic and Social Research Council. This paper was written while the first author was on sabbatical at the London School of Econom...

Economics; he would like to thank that institution for its hospitality. Abstract We view a contract as a list of outcomes. Ex ante, the parties commit not to consider outcomes not on the list, i.e., these are " ruled out ". Ex post, they freely bargain over outcomes on the list, i.e., the contract specifies no mechanism to structure their choice; in this sense outcomes on the list are not " rul...

By adding the concept of random embryology with locality to Lotka-Volterra population equations, a description of biological evolution is created. This model is called Ecolab. Computer simulations of these systems display self organised criticality, with power law behaviour for species lifetimes that stand in stark contrast to gradualism. This paper explores areas of future research with this m...

inflammatory myofibroblastic tumor (imt) is an aggressive benign mass that may arise from various tissues and organs with a great variability of histological and clinical appearances. due to variable and nonspecific imaging findings, diagnosis of imt is not obtained before surgery. the aim of this paper is to present ct and mri findings during four-year follow-up of complete, spontaneous regres...

We review the main sources of LiBeB production and show that a primary mechanism is at work in the early Galaxy involving both ejection and acceleration of He, C and O at moderate energy, which by nuclear interaction with H and He produce light isotopes. The precise measurement of the Be abundance at [Fe/H] = -3.3 and of Li in halo stars find an explanation in this framework. Thus, the preserva...