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Sometimes during your trips to different places in the country and around the world, you would stumble upon beautiful flowers. You would not be in a position to buy it or get more details of it but would be interested to get it later.
Established in February 2008, Sofaland is fast becoming one of the UK's most popular online leather sofa retailers. At Sofaland, they understand the importance of finding a new quality sofa at the right price.
A Virtual Sensor estimates product objective or process conditions using mathematical models rather than and sometimes in conjunction with physical sensors. These mathematical models use other physical sensor readings to calculate the estimated property or condition. Virtual sensor may provide flexibility, cost effective solutions, promote diversity, ensure security and increase manageability.
Wireless ad-hoc sensor networks and routing data in them is a significant research area. The objective of this paper is to examine resource depletion attacks at the routing protocol layer, which attempts to permanently disable network nodes by quickly draining their battery power. This type of attack is called as vampire attack. Vampire attacks are very difficult to detect because they attack the node only by sending protocol-compliant messages.
A field study was conducted at the Teaching and Research Farm, University of Agriculture, Makurdi, Nigeria in 2008 and 2009 cropping seasons. The objectives were to identify important determiners of yield characters and to determine the correlations between growth characters viz: number of leaves per plant, length of internodes per plant, number of internodes per plant, leaf area index, net assimilation rate, absolute growth rate, plant height; and yield characters namely: panicles per plant, capsules per plant, capsules per panicle, seeds per plant, dry weight of harvestable material, total dry weight per plant, harvest index, seed yield, 100 seed weight and oil yield at 4, 8, 12, 16, 20, 24 and 28 weeks after sowing(WAS).
The stabilities of ternary complexes of metal ions (copper, nickel, zinc and cobalt) with beta-hydroxy ketone (BHK) derivatives and benzotriazole (BTAZ) derivatives in 50% water + 50% dioxane medium in 0.1 M KNO3 ionic strength at 25 o C using potentiometric pH titrations have been established. The data reveal that the copper forms more stable complexes, which is followed by zinc ion complexes with these ligands. Both nickel and cobalt form complexes with similar stabilities. The stabilities of these complexes are further quantified with Δ log K values, intra-molecular equilibrium constants and percentage of stacking interaction in the ternary systems. The observed positive Δ log K values suggest that the flexible side chain alkyl moiety (butyl group) or aromatic moiety (phenyl group) in BHK ligand overlaps with the fixed aromatic moiety of BTAZ ligand in the ternary complex, which results in the enhanced stabilities for the (BHK-Bu)-Metal(II)-BTAZ and (BHK-Ph)-Met
“A cure for cancer” – the phrase is so often repeated, surely it must finally materialise? To anyone not familiar with the developing story of cancer research, the position seems tragically unsatisfactory. Billions of pounds and decades of work by thousands of researchers have produced much better prognoses for some cancers, but harsh forms of chemotherapy and radiotherapy are still the standard treatment and the much sought-after magic cure remains tantalisingly out of reach.
Bad news always makes the headlines, while good news is rarely reported and, over the past 15 years we’ve seen constant negative headlines when it comes to stock markets. We’ve witnessed two huge market crashes, with the end of the tech bubble in 1999 and the recent financial crisis of 2008 resulting in almost 50% declines. Then every few months we hear of another company blowing up. The latest examples are Tesco, Balfour Beatty and Quindell, and there have also been the Madoff and Enron fraud scandals!
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