A SAS macro for performing Analysis of Means (ANOM) type randomization tests for testing the equality of I variances is presented. Randomization techniques for testing statistical hypotheses can be used when parametric tests are inappropriate. Suppose that I independent samples have been collected. Randomization tests are based on shuffles or rearrangements of the (combined) sample. Putting eac...

Nowadays it is reiterated in the literature to put more emphasis on Transportation Demand Management (TDM) strategies rather than the traditional transportation strategies which are based on “supply-side” tactic specifically in rapidly growing developing countries. The experiences of many cities reveal that as capacity is increased, demand increases at a similar rate, and subsequently in the lo...

We undertook a study to determine if the automatic detection and counting of vehicle occupants is feasible. An automated vehicle occupant counting system would greatly facilitate the operation of freeway lanes reserved for buses, car-pools, and emergency vehicles (HOV lanes). In the present paper, we report our findings regarding the appropriate sensor phenomenology and arrangement for the task...

The movement of commercial vehicles through already congested metropolitan freeway networks is an important policy challenge today for transportation officials, and will become even more important in the future. This paper reports on a study of truck-only toll (TOT) lanes that was conducted in the Atlanta metropolitan region. This study focused on a regional network of TOT lanes with varying le...

$R$V${_6}$Sn${_6}$ ($R$ = Y, Gd - Tm, Lu) single crystals are synthesized by Sn-flux method and their physical properties characterized magnetization, resistivity, specific heat measurements. Powder X-ray diffraction patterns of all samples can be well indexed with the hexagonal HfFe$_6$Ge$_6$-type structure, where rare-earth atoms form layers vanadium Kagome layers. At high temperatures, magne...

BACKGROUND In ToxCast™ Phase I, the U.S. EPA commissioned screening of 320 pesticides, herbicides, fungicides, and other chemicals in a series of high-throughput assays. The agency also developed a toxicological prioritization tool, ToxPi, to facilitate using ToxCast™ assays to predict biological function. OBJECTIVES We asked whether top-scoring PPARγ activators identified in ToxCast™ Phase I...

Tremendous progress has been made in the past decade in the development of new disease-preventing agents. Foremost among such agents arc penicillin and strc^ptomycin, both of microbial origin. Other antibiotic substances of siinilar origin, such as chloromycetin^ aurcomycin, and terramycin^ are becoming especially valuable. Still others, including bacitracin, subtilin, ]:>olymyxin, and circulin...