نتایج جستجو برای: metalloid stress

تعداد نتایج: 439118  

Journal: :Stresses 2022

The non-essential metalloid arsenic (As) is widely distributed in soil and underground water of many countries. Arsenic contamination a concern because it creates threat to food security terms crop productivity safety. Plants exposed As show morpho-physiological, growth developmental disorder which altogether result loss productivity. At physiological level, As-induced altered biochemistry chlo...

Journal: :Sains Malaysiana 2022

Arsenic (As) is a bioactive metalloid that highly toxic to humans, animals, and plants. Environmental contamination of As especially in groundwater increases due natural anthropogenic activities. The present study was performed evaluate the potential wild Tagetes species for phytoremediation contaminated soil/water. This comparative research aims analyze accumulation tolerance two Tagetes, T. m...

2010
Doj Raj Khanal Anthony P. Knight

Selenium (Se) is an essential metalloid trace element that has a very narrow margin of safety between the toxic and deficient doses in animals and humans. This paper highlights about the beneficial and harmful effects of Se in livestock productivity and health besides presenting some information on its relation to Khari disease of buffaloes in Baitadi and Darchula districts and ways to mitigate...

Journal: :Chemical communications 2008
Christian Schenk Andreas Schnepf

The reaction of GeBr with LiGe(SiMe(3))(3) yields the largest metalloid cluster compound of germanium Ge(14)[Ge(SiMe(3))(3)](5)Li(3)(THF)(6), in which 14 germanium atoms are arranged as a hollow sphere in the cluster core, showing that in the case of germanium also fullerene-like compounds might be present in the borderland between the molecular and solid states.

Journal: :Angewandte Chemie 2002
Hans J Reich Martin J Bevan Birgir O Gudmundsson Craig L Puckett

The lithium±metalloid exchange reaction is widely used to prepare synthetically valuable organolithium reagents. The full synthetic potential of one of the most important of these reactions, the Li/I exchange, was not realized (e.g., in the synthesis of alkyllithium reagents) until mechanistic studies showed that it was a well-behaved polar process without a significant radical component.[1a,b,...

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