Results 61 to 70 of about 26,864 (270)

Russian wheat aphid: a model for genomic plasticity and a challenge to breeders

Insect Science, EarlyView.
Invasive foundress finds suitable habitat and reproduces through pathogenesis. Wingless females produce life offspring quickly, which leads to high population densities. High population densities result in competition, which may induce epigenetic changes and wing development for dispersal.
Astrid Jankielsohn, Vicky L. Tolmay, Marlon‐Schylor Luke le Roux, Lintle Mohase, Mpho S. Mafa, Vittorio F. Nicolis, Eduard Venter, Nicolaas Francois Visser Burger, Anna‐Maria Botha   +8 more
wiley   +1 more source

Randomized, single‐centre, double‐blinded repeated dose investigation of safety and tolerability of ocular administrations of a novel silica eye drop product in healthy volunteers

Acta Ophthalmologica, EarlyView.
Abstract Purpose Managing ocular diseases often requires frequent eye drop administration, which can challenge patient compliance. A long‐acting eye drop technology using an amorphous synthetic silica composite was developed to address this. Our study aimed to assess the safety and tolerability of the Silica Eye Drop platform in healthy volunteers over
Aleksandra Poluianova, Marceline N. Akieh‐Pirkanniemi, Arto Hartikainen, Hanna Arstila, Kai Kaarniranta, Lasse Leino   +5 more
wiley   +1 more source

The influence of foliar applied silicic acid on N, P, K, Ca and Mg concentrations in field peas^*

Journal für Kulturpflanzen, 2016
Silicon (Si) is the second most abundant element after oxygen in soil. However, many field studies have shown that supplying crops with extra Si in form of finely dispersed SiO2 · n H2O (= silicic acid “dissolved” in water) suppresses plant disease ...
Margit Olle, Ewald Schnug
doaj  

Studies on human serum lipoprotein phospholipids and phospholipid fatty acid composition by silicic acid chromatography*

Journal of Lipid Research, 1962
Normal human serum phospholipids were fractionated by silicic acid column chromatography. A large number of fractions was obtained with which it was possible to study the effect of fatty acid composition on elution rate.
Gary J. Nelson
doaj   +1 more source

The effect of early diagenetic processes on the quantification of fossil micrometeorite abundance and flux in the geological record

Meteoritics &Planetary Science, EarlyView.
Abstract Fossil micrometeorites (MMs) recovered from lithified sedimentary rocks, particularly iron‐rich (I‐type) cosmic spherules (CSs) provide valuable insights into past dust‐forming events. Their abundances, when combined with estimates of local sedimentation rates can be used to reconstruct the flux of extraterrestrial dust.
Isabelle S. Mattia, Matthew J. Genge, Martin D. Suttle   +2 more
wiley   +1 more source

Leaf application of silicic acid to upland rice and corn

Semina: Ciências Agrárias, 2013
This study aimed to evaluate the effect of Si (stabilized silicic acid, Silamol®) leaf application on mineral nutrition and yield in upland rice and corn crops.
Carlos Alexandre Costa Crusciol , Rogério Peres Soratto , Gustavo Spadotti Amaral Castro , Jayme Ferrari Neto , Claudio Hideo Martins da Costa   +4 more
doaj   +1 more source

The molecular dynamics of silica acids in aqueous solution: Qualitative and quantitative characteristics of oligomers

Учёные записки Казанского университета: Серия Физико-математические науки, 2020
In this work, we studied the diversity of silicic acid oligomers with Sin=(3−8) obtained during molecular dynamics in a reaction Feston–Garofalini force field that describes the process of oligomerization of silicic acids in an aqueous solution at the ...
E.D. Izotova, M.A. Rudakova, N.I. Akberova   +2 more
doaj   +1 more source

Potassium silicate improves cellular sodium homeostasis in wheat (Triticum aestivum L.) cultivars differing in salt resistance

Plant Biology, EarlyView.
Potassium silicate can decrease the uptake of sodium (Na+) into wheat cells by affecting the Na+ uptake channels and increasing ion homeostasis. Abstract Salinity causes negative impacts on crops. We investigated the effect of potassium silicate (K2SiO3) on the cytosolic uptake of sodium, [Na+]cyt, in mesophyll protoplasts of wheat cultivars differing ...
M. T. Javed, S. H. Morgan, S. Lindberg
wiley   +1 more source

Silicon induces positive responses at the biochemical and gene expression levels in tomato plants inoculated with Fusarium oxysporum

Polibotánica
Tomato plants infested by Fusarium oxysporum (Fol) show limitations in yield and fruit quality. The application of silicic acid could be used as an alternative to mitigate damage caused by this pathogen.
Antonio Juárez-Maldonado
doaj   +1 more source

Silicic acid HPLC of cardiolipin, mono- and dilysocardiolipin, and several of their chemical derivatives.

Journal of Lipid Research, 1990
A silicic acid HPLC system in hexane-2-propanol-1 mM H3PO4 50:50:3.5 (v/v/v) is described for the analysis and/or purification of cardiolipin (CL), monolysocardiolipin (MLCL), dilysocardiolipin (DLCL), and several of their chemical derivatives ...
NC Robinson
doaj   +1 more source