Results 41 to 50 of about 6,618 (173)

Multielemental Analysis in Rice Grains by Total Reflection X‐Ray Fluorescence

X-Ray Spectrometry, EarlyView.
ABSTRACT Rice (Oryza sativa) is a staple food cultivated worldwide and represents a significant source of essential nutrients for humans. However, this cereal may also contain potentially toxic elements including chromium, arsenic, and lead typically present at trace concentrations (ng.g−1).
F. T. S. Tsuyama, R. G. Leitão, C. G. L. Canellas, G. C. Ferreira, J. L. Pereira, R. S. Santos, J. T. Assis, D. F. Oliveira, M. J. Anjos   +8 more
wiley   +1 more source

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

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 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

Improving fatigue resistance of translucent 4Y‐PSZ zirconia through glass gradation

European Journal of Oral Sciences, EarlyView.
Abstract To evaluate the effect of graded glass infiltration on the fatigue behavior and mechanical reliability of translucent 4Y‐PSZ zirconia before and after hydrothermal aging, disc‐shaped specimens were fabricated by uniaxial pressing and divided into control and glass‐graded groups (n = 36/group).
Felipe Machado Souza, Larissa M. M. Alves, Edisa O. Sousa, Tiago Moreira Bastos Campos, Giovana Assis Marcolino, Mariana Miranda de Toledo Piza, Rainã S. Dias, Satoshi Yamaguchi, Petra C. Gierthmuehlen, Lukasz Witek, Paulo G. Coelho, Estevam A. Bonfante, Ernesto B. Benalcazar‐Jalkh   +12 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  

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

A Meta‐Analysis Reveals That the Protective Role of Silicon in Grasses Against Fungal Pathogens Depends on Infection Mechanism

Plant, Cell &Environment, EarlyView.
ABSTRACT Pathogen infection drives plant community structure and constrains global agricultural productivity. Silicon (Si) improves resistance to abiotic and herbivory stress, particularly in grasses, but relatively little attention has addressed Si‐mediated resistance to pathogens, nor has it tested how this varies according to the type of plant and ...
Sarah J. Thorne, Julia Cooke, Susan E. Hartley   +2 more
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