Results 131 to 140 of about 5,096,341 (376)

Analytical Study of Lanolin as Potential Biomarker of Prehistoric Sheep‐Shearing Practice

open access: yesChemistry–Methods, EarlyView.
Lanolin, a complex wax found on sheep wool, accumulates on shearing tools, such as flint and obsidian blades, used since the Neolithic. This study explores lanolin's degradation patterns as a potential biomarker for prehistoric sheep‐shearing practices, employing micro‐Fourier transformed infrared spectroscopy, hyperspectral imaging, and gas ...
Claudia Adsuar Fuster   +8 more
wiley   +1 more source

Palmitic and linoleic acids induce ER stress and apoptosis in hepatoma cells

open access: yesLipids in Health and Disease, 2012
Objectives Hepatic inflammation and degeneration induced by lipid depositions may be the major cause of nonalcoholic fatty liver disease. In this study, we tried to investigate the effects of saturated and unsaturated fatty acids on hepatoma cell ...
Zhang Yong   +4 more
doaj   +1 more source

An X-Ray Investigation of the Binary System Stearic Acid - Palmitic Acid. [PDF]

open access: bronze, 1958
Gunnar Degerman   +5 more
openalex   +1 more source

A new atmospheric aerosol phase equilibrium model (UHAERO): organic systems [PDF]

open access: yes, 2007
In atmospheric aerosols, water and volatile inorganic and organic species are distributed between the gas and aerosol phases in accordance with thermodynamic equilibrium.
Amundson, N. R.   +6 more
core   +3 more sources

C. elegans fatty acid two-hydroxylase regulates intestinal homeostasis by affecting heptadecenoic acid production [PDF]

open access: yes, 2018
Background/Aims: The hydroxylation of fatty acids at the C-2 position is the first step of fatty acid α-oxidation and generates sphingolipids containing 2-hydroxy fatty acyl moieties.
Fu, Rong   +10 more
core   +3 more sources

Aminosulfonated Graphene as a Catalyst for Efficient Production of Biodiesel from Fatty Acids and Crude Vegetable Oils

open access: yesChemSusChem, EarlyView.
The covalent integration of amino and sulfonate groups on the graphene surface significantly enhances activity in acid‐catalyzed reactions, such as in biodiesel production and dehydration of saccharides. Developing such heterogeneous, recyclable catalysts is vital, as acid catalysis represents one of the most general and versatile strategies in organic
Aby Cheruvathoor Poulose   +6 more
wiley   +1 more source

Opium trade and use during the Late Bronze Age: Organic residue analysis of ceramic vessels from the burials of Tel Yehud, Israel

open access: yesArchaeometry, EarlyView., 2022
Abstract Organic residue analysis was conducted on various vessels from burials at Tel Yehud, Israel. The analyses led to new reliable evidence for the presence of opioid alkaloids and their decomposition products. This research revitalizes a decades‐old discussion on the presence and function of the opium trade across a cultural region of utmost ...
Vanessa Linares   +5 more
wiley   +1 more source

GC determination of fatty acids in green beans grown in Galicia (N.W. Spain)

open access: yesGrasas y Aceites, 1996
The concentrations of lauric, myristic, palmitic, palmitoleic, stearic, oleic, linoleic, linolenic, arachidic acids in green beans (Phaseolus vulgaris L.) grown in Galicia (N.W. Spain) were determinated by capillary gas chromatography (GC). Palmitic acid
J. López Hernández   +4 more
doaj   +1 more source

Inhibitory effect of Mg2+ on the protonophoric activity of palmitic acid

open access: yesBiochimica et Biophysica Acta (BBA) - Bioenergetics, 1995
To discriminate whether fatty acids are uncouplers that cause acceleration of State-4 respiration, associated with a decrease in the protonmotive force, or decouplers that increase respiration without associated decrease in the protonmotive force, we examined the effect of palmitate on functions of rat-liver mitochondria under various conditions.
Shinohara, Y.   +5 more
openaire   +4 more sources

Engineering Diesters From Saturated Fatty Acids and C2–C4 Diols: How Branching Influence Rheological, Flow, and Crystallization Properties

open access: yesEuropean Journal of Lipid Science and Technology, EarlyView.
The image illustrates the scope of the work, that is, the synthesis of diesters from saturated fatty acids (C9–C16) and linear or branched diols and the investigation of the relationship between molecular structure and rheological, crystallization, and oxidation stability properties.
Michele Emanuele Fortunato   +8 more
wiley   +1 more source

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