The presentation of science in the media is usually far more optimistic than other areas of reporting; in place of war and famine we have breakthroughs and astonishing discoveries. But the detail — the slow accretion of supporting data and the puzzling incompatibility of some results — is usually ignored. In effect, science stories are ‘edited’ (either by the journalist or by the scientist who ...

Rapid movement of agricultural chemicals through soil to groundwater via preferential flow pathways is one cause of water contamination. Previous studies have shown that time domain reflectometry (TDR) could be used to characterize solute transport in soil. However, previous studies have only scarcely addressed preferential flow. This study presents an extended application of TDR for determinin...

In this research paper, an experimental breakthrough curve for citric acid in an adsorption recovery process was determined by an ion-exchange resin in 20, 35, 55 °C. Also, a mathematical model for breakthrough curve was presented. Among ion exchange resins that have been experienced, many weak and strong basic anionic resins are available such as, IRA-92, IRA-93, IRA-420 and IRA-458 and all of...

Hepatitis B virus (HBV) infection after liver transplantation (LT) may lead to severe and rapidly progressive graft failure. Antiviral treatment may be of benefit in selected patients with recurrent hepatitis B post-LT. The aim of this prospective open-label study is to determine the safety and efficacy of lamivudine in 33 liver transplant recipients with active HBV infection. The median time f...

We survey three recent breakthroughs in algebraic combinatorics. The first is the proof by Knutson and Tao, and later Derksen and Weyman, of the saturation conjecture for Littlewood-Richardson coefficients. The second is the proof of the n! and (n + 1)n−1 conjectures by Haiman. The final breakthrough is the determination by Baik, Deift, and Johansson of the limiting behavior of the length of th...

We report the case of a 14-year-old boy with a past history of primary generalized seizures, who had been seizure-free for 2 years on sodium valproate and presented with generalized tonic clonic seizures suggestive of breakthrough seizures. Examination revealed hypertension, impetiginous lesions of the lower limbs, microscopic hematuria, elevated anti-streptolysin O titre and low complement lev...

The miscible displacement process appears to be an increasingly feasible method for the extraction of oil from depleted reservoirs. How‌ever, there is a lack of fundamental understanding of how fracture geometrical characteristics impact the oil recovery efficiency in this type of enhanced oil recovery technique. In this work, a series of experimental tests were conducted whereby the n-Hept...