Results 91 to 100 of about 17,358 (219)

Selective benzylic C–H monooxygenation mediated by iodine oxides

open access: yesBeilstein Journal of Organic Chemistry, 2019
A method for the selective monooxdiation of secondary benzylic C–H bonds is described using an N-oxyl catalyst and a hypervalent iodine species as a terminal oxidant. Combinations of ammonium iodate and catalytic N-hydroxyphthalimide (NHPI) were shown to
Kelsey B. LaMartina   +4 more
doaj   +1 more source

Rice (<i>Oryza sativa</i> L.) roots have iodate reduction activity in response to iodine

open access: yesFrontiers in Plant Science, 2013
Although iodine is not an essential nutrient for higher plants, their roots take up and transport the element. However, the exact mechanisms involved in iodine uptake and metabolism in higher plants have yet to be elucidated.
Shota eKato   +10 more
doaj   +1 more source

Soil, wheat, cabbage and drinking water iodine in relation to human iodine status and iodine deficiency disorders in Xinjiang Province, China [PDF]

open access: yes, 2003
Iodine is an essential trace element for humans and animals. A lack in the diet can lead to iodine deficiency disorders (IDD) the most common manifestation being goitre, an enlargement of the thyroid gland in the neck.
Cave, M.R.   +4 more
core  

Sodium perxenate permits rapid oxidation of manganese for easy spectrophotometric determination [PDF]

open access: yes, 1967
Sodium perxenate oxidizes manganese to permanganate almost instantaneously in dilute acid solution and without a catalyst. A solution is prepared by dissolving 200 mg of sodium perxenate in distilled water and diluting to 100 ...
Bane, R. W.
core   +1 more source

Modeling iodide ? iodate speciation in atmospheric aerosol

open access: yes, 2006
International audienceThe speciation of iodine in atmospheric aerosol is currently poorly understood. Models predict negligible iodide concentrations and accumulation of iodate in aerosol, both of which is not confirmed by recent measurements. We present
Pechtl, S., Schmitz, G., von Glasow, R.
core   +3 more sources

Effect of exogenous iodine on enhancement of oxidative stress in soybean (Glycine max) plant and partial expression of 1-Cys peroxiredoxin gene under heat-stress conditions

open access: yesThe Indian Journal of Agricultural Sciences, 2016
The present study analyzes the biochemical effects of exogenous iodine on the antioxidant defense system of soybean (Glycine max L.) plant when grown under heat stress (35ºC).
NEHA GUPTA   +3 more
doaj   +1 more source

Determination of Iodate in Food, Environmental, and Biological Samples after Solid-Phase Extraction with Ni-Al-Zr Ternary Layered Double Hydroxide as a Nanosorbent

open access: yesThe Scientific World Journal, 2012
Nanostructured nickel-aluminum-zirconium ternary layered double hydroxide was successfully applied as a solid-phase extraction sorbent for the separation and pre-concentration of trace levels of iodate in food, environmental and biological samples.
Hossein Abdolmohammad-Zadeh   +2 more
doaj   +1 more source

Complex Patterns in Reaction-Diffusion Systems: A Tale of Two Front Instabilities

open access: yes, 1994
Two front instabilities in a reaction-diffusion system are shown to lead to the formation of complex patterns. The first is an instability to transverse modulations that drives the formation of labyrinthine patterns.
Aric Hagberg   +11 more
core   +2 more sources

Large shocks, small shocks, and economic fluctuations: outliers in macroeconomic times series [PDF]

open access: yes
Macroeconomics ; Time-series ...
Nathan S. Balke, Thomas B. Fomby
core  

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