Results 41 to 50 of about 2,070,794 (175)

Freshwater Macrophytes: A Potential Source of Minerals and Fatty Acids for Fish, Poultry, and Livestock

open access: yesFrontiers in Nutrition, 2022
The freshwater macrophytes are abundant in tropical and subtropical climates. These macrophytes may be used as feed ingredients for fish and other animals. The nutritional value of twelve freshwater-cultured macrophytes was evaluated in the present study.
Guddu Kumar   +7 more
doaj   +1 more source

A Comprehensive Overview on Necessity and Strategies of Salt Intake Reduction in the Population [PDF]

open access: yesTaṣvīr-i salāmat, 2017
Non-communicable diseases (NCDs) have become a major public health problem not only in developed countries, but also in developing countries; as cardiovascular disease is considered to be the leading cause of death in the world.
Fathollah Pourali   +4 more
doaj  

Characterization of the channel diffusion in a sodium tetrasilicate glass via molecular-dynamics simulations [PDF]

open access: yes, 2002
We study the structural and dynamical characteristics of the sodium atoms inside and outside the ``diffusion channels'' in glassy Na$_2$O-4SiO$_2$ (NS4) using classical molecular dynamics. We show that on average neither energetic arguments nor local environment considerations can explain the increased density of sodium atoms inside the subspace made ...
arxiv   +1 more source

Evolution of cation binding in the active sites of P-loop nucleoside triphosphatases in relation to the basic catalytic mechanism

open access: yeseLife, 2018
The ubiquitous P-loop fold nucleoside triphosphatases (NTPases) are typically activated by an arginine or lysine ‘finger’. Some of the apparently ancestral NTPases are, instead, activated by potassium ions.
Daria N Shalaeva   +4 more
doaj   +1 more source

Matrix controlled channel diffusion of sodium in amorphous silica [PDF]

open access: yes, 2002
To find the origin of the diffusion channels observed in sodium-silicate glasses, we have performed classical molecular dynamics simulations of Na$_2$O--4SiO$_2$ during which the mass of the Si and O atoms has been multiplied by a tuning coefficient. We observe that the channels disappear and that the diffusive motion of the sodium atoms vanishes if ...
arxiv   +1 more source

Evaluation of electrolyte status of sodium, potassium and magnesium, and fasting blood sugar at the initial admission of individuals with COVID-19 without underlying disease in Golestan Hospital, Kermanshah

open access: yesNew Microbes and New Infections, 2020
We examined electrolyte imbalance and blood sugar levels in patients with COVID-19 who had no underlying disease. This cross-sectional study in a clinical center was performed in Kermanshah, west of Iran. All patients who had a record of magnesium (Mg2+),
H. Sarvazad   +3 more
doaj  

Central Hemodynamic Parameters are Altered in Resistant Hypertensive Individuals

open access: yesArtery Research, 2019
Background: Systemic arterial hypertension (SAH) is one of the major risk factors related to the development of cardiovascular diseases (CVD). Sodium intake is linked to elevated blood pressure and can be estimated by 24-h urinary sodium excretion.
João Marcos de Menezes Zanatta   +7 more
doaj   +1 more source

Sodium diffusion through amorphous silica surfaces: A molecular dynamics study [PDF]

open access: yes, 2003
We have studied the diffusion inside the silica network of sodium atoms initially located outside the surfaces of an amorphous silica film. We have focused our attention on structural and dynamical quantities, and we have found that the local environment of the sodium atoms is close to the local environment of the sodium atoms inside bulk sodo-silicate
arxiv   +1 more source

Channel Formation and Intermediate Range Order in Sodium Silicate Melts and Glasses [PDF]

open access: yes, 2004
We use inelastic neutron scattering and molecular dynamics simulation to investigate the interplay between the structure and the fast sodium ion diffusion in various sodium silicates. With increasing temperature and decreasing density the structure factors exhibit an emerging prepeak around 0.9 A^-1.
arxiv   +1 more source

Application of Sigma Metrics and Performance Comparison Between Two Biochemistry Analyser and A Blood Gas Analyser for the Determination of Electrolytes [PDF]

open access: yesJournal of Clinical and Diagnostic Research, 2017
Introduction: Electrolytes have a narrow range of biological variation and small changes are clinically significant. It is important to select the best method for clinical decision making and patient monitoring in the emergency room.
Yasemin Ustundag-Budak, Kagan Huysal
doaj   +1 more source

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