Stephan’s Quintet (SQ) is a Hickson Compact Group well known for its complex dynamical and star formation history and its rich intergalactic medium (IGM). In order to study the extent, origin and fate of the intergalactic molecular gas and its relation to the formation of stars outside galaxies and Tidal Dwarf Galaxies (TDGs), we mapped with the IRAM 30m antenna carbon monoxide (CO) towards sev...

This paper aims to throw light on the mass extinction that is overtaking Earth's species. Using an analytic methodology developed for an earlier partial assessment, it focuses on a series of "hotspot" areas, these being areas that a) feature exceptional concentrations of species with high levels of endemism and b) face exceptional threats of destruction. The paper identifies another 8 such ar...

New multi-band observations of the famous compact group of galaxies Stephan's Quintet (SQ) are presented and analyzed. These include far infrared (FIR) images at 60µm and 100µm (ISOPHOT C-100 camera), radio continuum images at 1.4 GHz (VLA B-array) and 4.86 GHz (VLA C-array), and long-slit optical spectrographs (Palomar 200 " telescope). With these new data, we aim to learn more about the X-ray...

The study illustrates the use of Geographic Information System (GIS) tools and numerical Multi-Criteria Evaluation (MCE) techniques for selection of suitable sites for urban development of a hill town. This study was conducted to identify suitable sites for urban development of a hill town, Nahan using GIS-based multi-criteria evaluation of slope, road proximity, land use, land values, soil and...

site selection is an important and necessary issue for waste management in fast-growing regions. because of the complexity of waste management systems, the selection of the appropriate solid waste landfill site requires consideration of multiple alternative solutions and evaluation criteria. this paper addresses the sitting of a new landfill using a multi-criteria decision analysis (mcda) and o...

Land, a non-renewable resource, is central to all primary production systems. The geospatial technology of Remote Sensing and GIS holds the potential for timely and cost – effective assessment of natural resources. The techniques have been used extensively in the tropics for generating valuable information about various surface features of the earth. Therefore, we have used Remote Sensing and G...

Recently, geospatial abduction was introduced by the authors in (Shakarian, Subrahmanian, and Sapino 2010) as a way to infer unobserved geographic phenomena from a set of known observations and constraints between the two. In this paper, we introduce the SCARES2 software tool which applies geospatial abduction to the environment of Afghanistan. Unlike previous work, where we looked for small we...

Hainan, the largest tropical island in China, belongs to the Indo-Burma biodiversity hotspot and harbors large areas of tropical forests, particularly in the uplands. The Changhua watershed is the cradle of Hainan's main river and a center of endemism for plants and birds. The watershed contains great habitat diversity and is an important conservation area. We analyzed the impact of rubber and ...

1. The kinetics of the inhibitory action of four different angiotensin-converting enzyme inhibitors was evaluated in vitro with rat lung enzyme and the substrate hippuryl-histidyl-leucine. 2. Enzyme velocity against substrate concentration curves were fitted squares to hyperbolae by a weighted least squares iterative method to obtain apparent values of Km, Vmax. and K/V at each concentration of...

In September 2000 AIRSAR-TOPSAR data were acquired over the environment and cultural landscape of the World Heritage site of Angkor in Cambodia as part of a collaborative research project between APSARA (Royal Cambodian Government Agency responsible for Angkor), EFEO (Ecole Francaise d’Eextreme Orient) and the University of Sydney. Termed the Greater Angkor Project, additional support from the ...