English settlers to the New World believed that the climate of Newfoundland would be moderate, New England would be warm, and Virginia would be like southern Spain. They based these beliefs on the seemingly commonsense view that climate is much the same at any given latitude around the globe. What is striking is that these views persisted despite mounting evidence to the contrary. As late as 16...

Glacioeustaticand temperature-corrected planktonic foraminiferal oxygen isotope (Δd18O) records from ODP Site 942 on the Amazon Fan provide a means of monitoring past changes in the outflow of the Amazon River. This study focuses on the last deglaciation and reveals that during this period there were significant variations in the outflow, which implies large changes in moisture availability in ...

Strongyloidiasis is a helminthic infection caused by Strongyloidis stercoralis .The most commonly affected population is the rural population residing in the tropical and sub-tropical climate. Strongyloidiasis may present clinically with typical features but often may be atypical in their presentation and pose a diagnostic challenge for the clinician. We here report a case of a 52 year old male...

Intestinal and urinary helminthes are distributed worldwide, particularly in tropical and sub-tropical areas. More than one billion of the world’s population, including atleast 400 million school children are chronically infected with Ascaris lumbricoides, Trichuris trichiura and the hookworms1 while schistosomiasis affects nearly 200 million people in 75 countries. The prevalence of infections...

Deforestation in the tropics is not only responsible for direct carbon emissions but also extends the forest edge wherein trees suffer increased mortality. Here we combine high-resolution (30 m) satellite maps of forest cover with estimates of the edge effect and show that 19% of the remaining area of tropical forests lies within 100 m of a forest edge. The tropics house around 50 million fores...

the coast of bangladesh has a specialty in terms of high bending and many off- shore islands. incorporation of the coastline and island boundaries properly in the numerical scheme is essential for accurate estimation of water levels due to surge. for that purpose a numerical scheme consisting of very fine mesh is required along the coastal belt, whereas this is unnecessary away from the coast. in...

a more detailed analysis is made of the energy spectrum of the diffuse component of extragalactic gamma rays over the range of 0.3- 10 gev, obtained fromthe egret instrument at the compton gamma ray observatory. the derived excess energy spectrum of high galactic latitude, b > 60°, using intercept method shows that it is correlated with virgo cluster (over lsr) and average virgo intensity is ab...

Abstract The dynamics of ionospheric troughs that developed during a great geomagnetic storm on 11–13 April 2001 are studied using measurements electron density obtained by the CHAMP satellite at an altitude 410–465 km. Subauroral, mid-latitude and low-latitude were observed nighttime, sometimes simultaneously. subauroral trough is usually defined as main trough, whereas associated with magneto...