Abstract. Atmospheric blocking can influence Arctic weather by diverting the mean westerly flow and steering cyclones polewards, bringing warm, moist air to high latitudes. Recent studies have shown that diabatic heating processes in ascending warm conveyor belt branch of extratropical are relevant dynamics. This leads question extent which associated with mid-latitude may high-latitude drive e...

Previous investigations suggest that male tropical birds have lower plasma testosterone concentrations than northern latitude species. To test whether this generalization is valid, we analyzed all currently available plasma testosterone data of tropical birds. We focused on peak breeding testosterone levels using phylogenetic and conventional statistics. Explanatory variables considered were so...

We have analyzed the Ca-K images obtained at Kodaikanal Observatory as a function of latitude and time for period 1913 – 2004 covering Solar Cycles 15 to 23. classified chromospheric activity into plage, Enhanced Network (EN), Active (AN), Quiet (QN) areas differentiate between large strong active small weak regions. The regions represent toroidal poloidal component magnetic field. find that pl...

The use of sludge in agriculture has been encouraged as a means of increasing soil nutrient content and improving the water holding capacity. On the negative side, major public health concerns with sludge application prevail, mainly due to the high concentration of pathogenic microorganisms. Soil-transmitted helminths (STHs) are of major health concern in this regard, especially in endemic regi...

The mosquito-transmitted viral infectious disease dengue is a major public health problem in tropical and sub-tropical countries, where it causes dengue fever, dengue haemorrhagic fever and dengue shock syndrome. Almost 400 million people are infected by dengue each year, causing around 20,000 deaths. There are no vaccines or therapeutic regimens currently available for the prevention and treat...

Welcome to thebeginning of yet another year with Seminars in Thrombosis & Hemostasis (STH). This is my 9th year as Editorin-Chief, and my 12th year of editorial association with this journal, having originally served as a regional editor. First, as always, I wish to sincerely thank all the contributors to STH over past years, as well as the guest editors for these past issues, and of course the...

BACKGROUND The population of Nukufetau, a remote coral atoll island in Tuvalu in the Western Pacific, received annual mass drug administration (MDA) of diethylcarbamazine and albendazole under the Pacific Elimination of Lymphatic Filariasis program in 2001, 2002 and 2003, with the last MDA occurring six months before a cross-sectional survey of the whole population for soil transmitted helminth...

The effects of somatotropin (STH) and energy intake on serum concentrations of glucose (GLU), insulin (INS), nonesterified fatty acids (NEFA), urea nitrogen (UN) and insulin-like growth factor-I (IGF-I) were determined in 40 Angus heifers. At 7 mo (208 +/- 8 d) of age heifers were assigned to four treatment groups: 1) vehicle (V) + high energy (HE; 2.68 Mcal ME/kg DM), 2) recombinant DNA-derive...

Upper Atmosphere Research Satellite tropical wind and constituent measurements are used to estimate an upper limit of mid-latitude to tropical trace gas exchange by examining the phase of the N20/CH 4 ratio with respect to the Quasi-Biennial Oscillation winds. Assuming a simple diffusive model for tropical mid-latitude exchange in the 20-28 km region, the mixing times are estimated to be at lea...

Hydrogen production via electrochemical water splitting is a promising approach for storing solar energy. For this technology to be economically competitive, it is critical to develop water splitting systems with high solar-to-hydrogen (STH) efficiencies. Here we report a photovoltaic-electrolysis system with the highest STH efficiency for any water splitting technology to date, to the best of ...