Operant conditioning of the H-reflex, the electrical analog of the spinal stretch reflex, is a simple model of skill acquisition and involves plasticity in the spinal cord. Previous work showed that the cerebellum is essential for down-conditioning the H-reflex. This study asks whether the cerebellum is also essential for maintaining down-conditioning. After rats decreased the soleus H-reflex o...

From its first introduction in this same conference, the original prototype of the Semantic Bookmarking tool Semantic Turkey has undergone a deep and extensive revision process, breaking the boundaries of its original intents and going more and more towards an extensible platform for Knowledge Management and Acquisition based on Semantic Web technologies. Following its recent official release, ...

Muhammad Tariq, Muhammad Mansoor Iqbal, Abdul Aziz*, Muhammad Shafiq Muhammad Sajid and Bashir Mohammad Department of Mining University of Engineering and Technology Lahore. Central Analytical Facility Division, PINSTECH, Islamabad Pakistan. Department of Construction Environment Engineering, Korea University of Science and Technology, 305-350, Daejeon, Korea. College of Chemistry, Beijing Norm...

according adhar bigdili, muhammad ali was son of abdal biq naqqashbashi (painter laureate)and grandson of aliquli biq jabadar, court painter of shah safi and shah abbas ii safawi. adhar bigdili credited muhammad ali with naqqashbashi of shah tahmasp ii safawi and nadir shah afshar. having learnt the art of painting from his father, muhamma ali in turn trained ali ashraf, who worked under patron...

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In the preceding paper (Dodgson & Powell, 1959) it was shown that an arylsulphatase present in the digestive juice and the digestive gland of the edible snail exhibited a shift in optimum pH as the concentration of substrate was increased. This paper describes the partial purification of the digestivegland enzyme and provides further evidence that the shift in optimum pH is not due to the prese...

We examined changes In the levels of dissolved inorganic nitrogen (DIN) during incubation experiments with 4 conspicuous sponge species from Caribbean coral reefs, mangroves, or seagrass beds (Chondrilla nucula, ?Pseudaxinella zeai, Oligoceras violacea, Plakortis halichondroides). DIN accumulation in the incubation water was detected for all the species, but no significant DIN concentration cha...

The concentration of dissolved inorganic nitrogen (DIN) in the porewaters of shallow-water tropical marine sediments can be as high as 50-100 µM, at sediment depths of shallow as 20 cm. These concentrations are at least two-orders of magnitude greater than the DIN concentration in the overlying water. High porewater concentrations, and the resulting concentration gradient, result in substantial...