We report experimental studies of an individual with different types of color vision in his two eyes. The left eye is typically deuteranomalous, with good wavelength discrimination. The right eye is typically deuteranopic. both in its wavelength discrimination and in its color matching functions. Luminosity curves of left and right eyes are indistinguishable, both being within the normal range....

An 83-year-old man attended the emergency room complaining of abdominal pain for 1 month. He had a history of having undergone cholecystectomy and had ongoing chronic kidney disease. His appearance was suggestive of chronic illness and there was tenderness on palpation of the right upper quadrant of his abdomen. On admission, the results of his liver function tests and blood chemistry were as f...

M the common name for Cannabis sativa, is a widely distributed hemp plant whose dried flowering tops and leaves have been used for medicinal purposes for 12,000 years by some estimates (1). The article by Malfait et al. (2) in this issue of PNAS is relevant to the question of whether such traditional uses of marijuana could be clinically justifiable today. Contemporary discussions of the medica...

1 The paper deals with the analysis of urban values and their spatial distribution in urban areas. We propose the use of GIS and spatial analytical techniques to model real estate prices and values in an urban area, producing different shapes and interpretations of an urban area. A test is done using real estate values available at unit postcode level for the City of Swindon (UK). INTRODUCTION ...

Nicotine, a psychoactive compound of cigarette, is an alkaloid that binds and activates nicotinic acetylcholine receptors on the retina and lateral geniculate nucleus, being able to affect visual spatial processing. Losses in color vision have been associated with chronic exposure to cigarette. Since not all tests of color discrimination investigation are designed to detect acquired losses, the...

Gastrin Peptide hormone normally produced in antral portion of stomach in response to peptide fragments& amino acids (esp. tryptophan, phenylalanine) released from ingested foods. Physiologic gastrin production is also stimulated by gastric distention via acetylcholine. Gastrin release is inhibited when intragastric pH falls below 3.0. Gastrin stimulates acid production by oxyntic cells and gro...

Digital Elevation Models (DEMs) can be generated using a variety of techniques and data sources including levelling, photogrammetry, SAR interferometry, radargrammetry, and laser scanning. These different-sourced DEMs are affected by different systematic vertical and horizontal errors, as well as random noise. Moreover, each DEM generally has different spatial resolution and coverage. In genera...

A survey of 17 transit-oriented developments (TOD) in five U.S. metropolitan areas showed that vehicle trips per dwelling unit were substantially below what the Institute of Transportation Engineer’s Trip Generation manual estimates. Over a typical weekday period, the surveyed TOD housing projects averaged 44 percent fewer vehicle trips than that estimated by the manual (3.754 versus 6.715). Ve...

This paper analyzes the differences in travel behavior and location characteristics across different income groups in two cities in very different parts of the world – Chile and China. Using recent household travel surveys, we compare vehicle ownership rates, mode choices, trip rates and purposes, and travel times and distances according to high, middle, and low income terciles in Chengdu and S...

This paper presents a review of Bus Rapid Transit (BRT) systems in Australasia. It describes the major systems operating in Adelaide, Brisbane and Sydney, outlining their infrastructure, operations and development characteristics. The performance of these systems in terms of patronage, markets, operations and overall urban development impacts is described. Lessons learned in their implementatio...