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The article was published on 1967-01-01 and is currently open access. It has received 22994 citations till now.

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Hydraulic geometry, river sediment and the definition of bedrock channels

TL;DR: In this paper, the authors proposed the definition that a bedrock channel cannot substantially widen, lower or shift its bed without eroding bedrock, and applied to channels in Taiwan, this leads to a different classification than previous definitions.
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Blockade and stimulation of renal, adrenal, and vascular angiotensin II receptors with 1-Sar, 8-Ala angiotensin II in normal man.

TL;DR: P113 is a partial agonist in normal man, inducing an angiotensin-like response in settings in which endogenous A II is not playing a tonic role, and displaying dominant antagonist activity in settingsin which AII is active.
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Heavy metal contamination of topsoils around a lead and zinc smelter in the Republic of Macedonia.

TL;DR: The content of elements such as As, Au, Cd, Cu, Hg, In, Pb, Sb, Se, Zn in soil samples around the lead and zinc smelter and in the adjacent part of the town of Veles has appeared to be much higher than in those collected in the surrounding areas due to the pollution from the plant.
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Balanced Risk Set Matching

TL;DR: In this article, a new form of matching, optimal balanced risk set matching, is applied in an observational study of a treatment, cystoscopy and hydrodistention, given in response to the symptoms of the chronic, non lethal disease interstitial cystitis.
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The activities in different neural cell types of certain enzymes associated with the metabolic compartmentation glutamate.

TL;DR: The findings presented provide direct evidence in support of the model assigning the 'small' glutamate compartment, where most of the labelled glutamine is synthesized, to glial cells, and the 'large' compartment to neurones, and also underline the metabolic interaction between these two cell types in the brain.