A significant number of parameterizations for the polarized parton densities have appeared in the literature. Using the CTEQ evolution package, these distributions have been evolved consistently preparatory to compilation into an integrated package in the spirit of PDFLIB by Plothow-Besch. Here, a comparison of a few of the more recent distributions are made. Table 1: This is a partial listing ...

A controversy concerning the shielding of coherent synchrotron radiation has existed for many years. Estimates of the reduction of radiated power by nearby conducting surfaces in LHC di er by several orders of magnitude when one uses the expressions given in two of the major papers in the eld. A clari cation of this problem as well as the expected values for coherent synchrotron radiation in LE...

The main objective of this paper is to investigate the economical limit for the ships’ increase in size. Ship size is one factor out of many that affect the investors in the shipping business. The paper seeks to reassess the validity of well-established theoretical frameworks, which support the concept of depending on the increase in size of ships prompted by economies of scale. The investigati...

A special case of the Time-Dependent Shortest Path Problem (TDSPP) is the itinerary planning problem where the objective is to find the shortest path between a source and a destination node which passes through a fixed sequence of intermediate nodes. In this paper, we deviate from the common approach for solving this problem, that is, finding first the shortest paths between successive nodes in...

Biostimulation is one of the most mature methods of bioremediation of hydrocarbons, yet recent advances in geophysics, stable isotope analyses, and molecular microbiology promise dramatic increases in the depth, breadth, and throughput of biostimulation strategies. Using a systems biology approach we can now understand not only what microbes are present, but their in situ activities to trace nu...

BACKGROUND Pharyngitis management guidelines include estimates of the test characteristics of rapid antigen streptococcus tests (RAST) using a non-systematic approach. OBJECTIVE To examine the sensitivity and specificity, and sources of variability, of RAST for diagnosing group A streptococcal (GAS) pharyngitis. DATA SOURCES MEDLINE, Cochrane Reviews, Centre for Reviews and Dissemination, S...

We establish an exact correspondence between temporal logic and a subset of TSQL2, a consensus temporal extension of SQL-92. The translation from temporal logic to TSQLZ developed here enables a user to write high-level queries which can be evaluated against a spaceefficient representation of the database. The reverse translation, also provided, makes it possible to characterize the expressive ...

Understanding a ship’s present position has been one of the most important tasks during a ship’s voyage, in both ancient and modern times. Particularly, a ship’s dead reckoning (DR) has been used for predicting traffic situations and collision avoidance actions. However, the current system that uses the traditional method of calculating DR employs the received position and speed data only. Ther...

Experiencing cultural heritage is a voyage of discovery and learning, where emerging insights and serendipity play a significant role. The experience also happens in a blended personal and social context. At the broader level, engagement is longitudinal – what we learn from modern cultural experiences (daily life in our surroundings) can provide clues to analogous interests in cultural material...