Results 101 to 110 of about 45,956 (313)

Features of Authigenic Mineralization and Geochemical Processes of Fossilization of Marine Reptile Vertebrae (Oxford-Kimmeridge, Republic of Tatarstan)

open access: yesGeoresursy
Studies were conducted on the sequence and conditions of authigenic mineral formation in fossil bone tissue, as well as the chemical composition and geochemical characteristics of fossilization processes in marine reptile vertebrae discovered in ...
M. S. Glukhov   +3 more
doaj   +1 more source

Conductivité en courant continu des sulfates de polyanilines

open access: yes, 1971
On étudie l’influence de facteurs physico-chimiques sur la conductivité en courant continu des sulfates de polyaniline, la conductivité étant mesurée sur des éprouvettes constituées de pastilles préalablement comprimées. L’influence des facteurs suivants
Françoise Hautière-Cristofini   +5 more
core   +1 more source

Structural studies and functional engineering of NanX: an anhydro‐sialic acid transporter from Escherichia coli

open access: yesFEBS Open Bio, EarlyView.
Biophysical characterisation shows that NanX, a membrane transport protein from the major facilitator superfamily (MFS), forms both monomers and dimers after purification. AlphaFold modelling and substrate docking provide information on residues likely involved in substrate recognition for NanX and another MFS member, NanT.
Michael C. Newton‐Vesty   +13 more
wiley   +1 more source

Synthesis and Protection of Aryl Sulfates Using the 2,2,2-Trichloroethyl Moiety

open access: yes, 2016
The 2,2,2-trichloroethyl (TCE) group was utilized as the first protecting group for aryl sulfates. Aryl sulfates, protected with the TCE group, were prepared in high yield by reacting phenols with chlorosulfuric acid TCE ester.
Peter Dove (2120002)   +4 more
core   +1 more source

Water activities and osmotic coefficients of aqueous solutions of five alkyl-aminium sulfates and their mixtures with H2SO4 at 25ºC [PDF]

open access: yes, 2015
Alkylaminium sulfates are frequently detected in ambient aerosols, and are believed to be important in the nucleation of new particles in the atmosphere, despite their comparatively low gas phase concentrations. In this study water activities and osmotic
Clegg, Simon   +3 more
core   +1 more source

Purification and preparation of Marchantia polymorpha Auxin Response Factor 2 for phase separation studies

open access: yesFEBS Open Bio, EarlyView.
We describe detailed protocols for the purification and preparation of Marchantia polymorpha Auxin Response Factor 2 (MpARF2). This protein is fused to an MBP solubility tag and an mNG fluorescent tag and is purified from Escherichia coli. The presented procedures make it possible to study MpARF2 assemblies, which could arise from phase separation ...
Bas Janssen   +5 more
wiley   +1 more source

Oxidation of organic cyclic sulfites to sulfates: A new reaction catalyzed by cyclohexanone monooxygenase

open access: yes, 1998
Cyclohexanone monooxygenase from Acinetobacter catalyzes the enantioselective oxidation of organic cyclic sulfites to ...
P. Pasta   +3 more
core   +1 more source

The selective determination of sulfates, sulfonates and phosphates in urine by CE-MS

open access: yes, 2010
Metabolite identification and metabolite profiling are of major importance in the pharmaceutical and clinical context. However, highly polar and ionic substances are rarely included as analytical tools are missing.
Weinmann, Wolfgang   +5 more
core   +1 more source

A minimal cellulosome‐like system in Cellulosilyticum lentocellum

open access: yesFEBS Open Bio, EarlyView.
Cellulose‐degrading bacteria typically use cellulosomes, large multi‐enzyme complexes on a scaffold protein. In Cellulosilyticum lentocellum, we characterise a far smaller arrangement, a single scaffold bound to one cellulase through a single cohesin‐dockerin interaction.
John Allan   +2 more
wiley   +1 more source

Effet des sulfates sur le comportement rheologiques des pates cimentaires [PDF]

open access: yes, 2009
L’utilisation des adjuvants dans la formulation des bétons autoplaçants tend à se généraliser. Par conséquent, il est intéressant d'approfondir l'étude des différents sulfates (Na2SO4,CaSo4,K2So4) sur le ...
SAIDI, Mohamed   +4 more
core  

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