During the last few years increasing attention has been focused on Langerhans cells and their peculiar granules (1-5). These organelles were considered specific products of the intraepidermal dendritic cells (1-3), but recently identical structures have been observed in osseous and pulmonary lesions of histiocytosis X (6). The Langerhans cell granule resembles a tennis racket. It is rodlike wit...

We present a new approach to contract semantics which expresses myriad monitoring strategies using a small core of foundational communication primitives. This approach allows multiple existing contract monitoring approaches, ranging from Findler and Felleisen’s original model of higher-order contracts to semi-eager, parallel, or asynchronous monitors, to be expressed in a single language built ...

We report on experience implementing a functional image library designed for use in an introductory programming course. Designing the library revealed subtle aspects of image manipulation, and led to some interesting design decisions. Our new library improves on the earlier Racket library by adding rotation, mirroring, curves, new pen shapes, some new polygonal shapes, as well as having a signi...

blood samples were collected from the jugular vein of 101 clinically healthy iranian fat-tailed sheep according to their age (5 years) and sex. serum haptoglobin (hp) was measured based upon the preservation of the peroxidase activity of haemoglobin, which is directly proportional to the amount of hp. the reference value for serum hp of apparently healthy iranian fat-tailed sheep was 0.05-0.18 ...

Gupta and Livne (1988) modified Nash’s (1950) original bargaining problem through the introduction of a reference point restricted to lie in the bargaining set. Additionally, they characterized a solution concept for this augmented bargaining problem. We propose and axiomatically characterize a new solution concept for bargaining problems with a reference point: The Tempered Aspirations solutio...

Since the introduction of volatility derivatives, there has been growing interest in option implied volatility (IV). Many studies have examined informational content, and or forecast accuracy of IV, however there is relatively less work on directly modeling and forecasting IV. This paper uses a semi-parametric forecasting approaching to implement a time varying long volatility hedge to combine ...