Results 31 to 40 of about 3,058,950 (364)

Preparation and characterization of new hybrid organic/inorganic systems derived from calcium (aminoalkyl)-phosphonates and -phosphonocarboxylates [PDF]

open access: yes, 2005
We have studied the phenomenon of calcium complexation by lab synthesized amphiphilic (α-aminoalkyl)-phosphonocarboxylic or -phosphonic acids. The electrical conductivity of aqueous solutions of sodium salts of all these acids was measured versus the ...
Al-Ali, Fatima   +3 more
core   +2 more sources

Calcium waves [PDF]

open access: yesPhilosophical Transactions of the Royal Society B: Biological Sciences, 2004
Waves through living systems are best characterized by their speeds at 20°C. These speeds vary from those of calcium action potentials to those of ultraslow ones which move at 1–10 and/or 10–20 nm s−1. All such waves are known or inferred to be calcium waves.
openaire   +2 more sources

Impact of calcium on salivary α-amylase activity, starch paste apparent viscosity and thickness perception [PDF]

open access: yes, 2011
Thickness perception of starch-thickened products during eating has been linked to starch viscosity and salivary amylase activity. Calcium is an essential cofactor for α-amylase and there is anecdotal evidence that adding extra calcium affects ...
A Kumari   +33 more
core   +1 more source

Titanium Dioxide Promotes the Growth and Aggregation of Calcium Phosphate and Monosodium Urate Mixed Crystals

open access: yesCrystals, 2023
The increased utilization of titanium dioxide (TiO2) nanoparticles (TNPs) in various industrial and consumer products has raised concerns regarding its harmful effect due to its accumulation within the different systems of the human body.
Onyebuchi C. Ukaeje   +1 more
doaj   +1 more source

Heterogeneous Phosphotungstate Catalyst Mediated Efficient Alcoholysis of Furfuryl Alcohol into Long-Chain Levulinates

open access: yesBioResources, 2023
The synthesis of alternative fuels from biomass has emerged to be a vital strategy to maintain sustainable development. Long-chain levulinate esters (LEs) are a class of good biofuel candidates because they have similar structures to biodiesels and ...
Yinghui Wang   +5 more
doaj   +2 more sources

When, where and how? Focus on neuronal calcium dysfunctions in Alzheimer's Disease. [PDF]

open access: yes, 2016
Alzheimer\u2019s disease (AD), since its characterization as a precise form of dementia with its own pathological hallmarks, has captured scientists\u2019 attention because of its complexity.
AGOSTINI, MARIO, FASOLATO, CRISTINA
core   +1 more source

Study on Process Mineralogy of a High Iron Potassium Feldspar from Jilin Province

open access: yesKuangchan zonghe liyong, 2022
By means of X-ray diffraction analysis, scanning electron probe microanalysis and optical microscopy, the chemical composition and mineral intercalation and particle size composition of potassium feldspar in Jilin were studied. The results show that main
Jiao Peng   +4 more
doaj   +1 more source

Calcitonin Gene-Related Peptide (Cgrp), Adrenomedullin (Am), Amylin, And Calcitonin (Ct) Receptors And Overlapping Biological Actions

open access: yesThe Scientific World Journal, 2001
CGRP, AM, amylin, and CT have in common N-terminal 6-7 amino acid ring structures linked by disulfide bridges and amidated C-termini required for biological activity.
J.A. Fischer, W. Born, R. Muff
doaj   +1 more source

Downregulation of TrkC Receptors Increases Dendritic Arborization of Purkinje Cells in the Developing Cerebellum of the Opossum, Monodelphis domestica

open access: yesFrontiers in Neuroanatomy, 2020
In therian mammals, the cerebellum is one of the late developing structures in the brain. Specifically, the proliferation of cerebellar granule cells occurs after birth, and even in humans, the generation of these cells continues during the first year of
Beata Tepper   +6 more
doaj   +1 more source

Got Calcium? [PDF]

open access: yes, 2002
This lithograph answers the question: Where do the elements around us come from? Many are produced in stars, and liberated when these stars explode. It features an attractive image of the remains of an exploded star, taken by NASA's new Chandra X-ray ...

core  

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