Results 51 to 60 of about 1,209,115 (296)

A simple and efficient method for the preparation of 5-hydroxy-3-acyltetramic acids

open access: yesBeilstein Journal of Organic Chemistry, 2015
Oxidation of the bisenolates of 3-acyltetramic acid to the corresponding 5-hydroxylated compounds using molecular oxygen is reported. The deprotection of the resulting compounds was also achieved.
Johanna Trenner, Evgeny V. Prusov
doaj   +1 more source

Magnetoelectric ordering of BiFeO3 from the perspective of crystal chemistry

open access: yes, 2011
In this paper we examine the role of crystal chemistry factors in creating conditions for formation of magnetoelectric ordering in BiFeO3. It is generally accepted that the main reason of the ferroelectric distortion in BiFeO3 is concerned with a ...
A. Atanasov   +86 more
core   +1 more source

Chemical and photochemical properties of chloroharmine derivatives in aqueous solutions [PDF]

open access: yes, 2016
Thermal and photochemical stability (ΦR), room temperature UV-vis absorption and fluorescence spectra, fluorescence quantum yields (ΦF) and lifetimes (τF), quantum yields of hydrogen peroxide (ΦH2O2) and singlet oxygen (ΦΔ) production, and triplet ...
Cabrerizo, Franco Martín   +7 more
core   +1 more source

Cell wall target fragment discovery using a low‐cost, minimal fragment library

open access: yesFEBS Letters, EarlyView.
LoCoFrag100 is a fragment library made up of 100 different compounds. Similarity between the fragments is minimized and 10 different fragments are mixed into a single cocktail, which is soaked to protein crystals. These crystals are analysed by X‐ray crystallography, revealing the binding modes of the bound fragment ligands.
Kaizhou Yan   +5 more
wiley   +1 more source

Finding a relationship between the composition and the emulsifying character of asphaltenes through FTICR-MS

open access: yesCT&F Ciencia, Tecnología & Futuro
In this work, n-heptane insoluble fractions (asphaltenes) from six crude oils were analyzed by means of Fourier-transform ion cyclotron resonance mass spectrometry (FTICR MS) using both positive Atmospheric Pressure Photo Ionization (+) APPI and negative
Fernando A Rojas-Ruiz   +1 more
doaj   +1 more source

Oxidative Conversion of Methane of Natural Gas to Oxygen Containing Compounds

open access: yesChemical Engineering Transactions, 2017
The search of new compositions of catalysts on carriers on the base of heteropoly compounds of molybdenum for oxidative conversion of methane, the identification of optimal conditions for the partial oxidation of methane to formaldehyde, as well as study
S.A. Tungatarova   +5 more
doaj   +1 more source

Effects of sedimentation and periphyton communities on embryonic rainbow smelt, Osmerus mordax [PDF]

open access: yes, 2009
The decline of anadromous rainbow smelt (Osmerus mordax) populations has been suspected to be linked to anthropogenic causes. Increased runoff from agriculture and urbanization has led to additional sediment inputs and eutrophying compounds in rivers ...
Wyatt, Lauren Helena
core   +2 more sources

Structural and Magnetic Properties of Pyrochlore Solid Solutions (Y,Lu)2Ti2-x(Nb,Ta)xO7+/-y

open access: yes, 2008
The synthesis and characterization of the pyrochlore solid solutions, Y2Ti2-xNbxO7-y, Lu2Ti2-xNbxO7-y, Y2Ti2-xTaxO7-y and Lu2TiTaO7-y (-0 ...
Blaha   +18 more
core   +1 more source

Inhibiting stearoyl‐CoA desaturase suppresses bone metastatic prostate cancer by modulating cellular stress, mTOR signaling, and DNA damage response

open access: yesFEBS Letters, EarlyView.
Bone metastasis in prostate cancer (PCa) patients is a clinical hurdle due to the poor understanding of the supportive bone microenvironment. Here, we identify stearoyl‐CoA desaturase (SCD) as a tumor‐promoting enzyme and potential therapeutic target in bone metastatic PCa.
Alexis Wilson   +7 more
wiley   +1 more source

Microaerobic biodegradation of aromatic hydrocarbon mixtures: strategies for efficient nitrate and oxygen dosage

open access: yesApplied Microbiology and Biotechnology
The biodegradation of organic aromatic compounds in subsurface environments is often hindered by limited dissolved oxygen. While oxygen supplementation can enhance in situ biodegradation, it poses financial and technical challenges.
Dilan Camille Aydin   +3 more
doaj   +1 more source

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