Results 51 to 60 of about 608,326 (393)

Reactivity of aluminum sulfate and silica in molten alkalimetal sulfates in order to prepare mullite [PDF]

, 2004
With the aim of preparing mullite, reactions between aluminum sulfate and silica in appropriate proportions and molten sulfate media M2SO4 (M=Na and/or K) were performed at different temperatures.
Durand, Bernard, El Ouatib, Rachida, Er-Rakho, Lahcen, Guillemet-Fritsch, Sophie, Moussab, Redouane, Samdi, Azzeddine   +5 more
core   +2 more sources

Energy transfer of intrinsic electronic excitation to impurities in the CaSO4 − Mn crystal

Eurasian Journal of Physics and Functional Materials, 2021
The nature of the impurity emission center and the energy transfer mechanisms from intrinsic electronic excitations to the Mn2+ impurity centers in the CaSO4 − Mn crystal have been investigated.
T.N. Nurakhmetov, Zh.M. Salikhodzha, K.B. Zhangylyssov, A.M. Zhunusbekov, A.Zh. Kainarbay, D.H. Daurenbekov, Zh. Azmagambetova, B.M. Sadykova, B.N. Yussupbekova, T.T. Alibay, D.A. Tolekov, N. Tulebayeva   +11 more
doaj   +1 more source

Involvement of UDP-Glucuronosyltransferases and Sulfotransferases in the Excretion and Tissue Distribution of Resveratrol in Mice. [PDF]

, 2017
Resveratrol is a naturally occurring polyphenolic compound with various pharmacological activities. It is unknown whether the expression of metabolizing enzymes correlates with resveratrol levels in organs and tissues.
Brenner, Stefan, Böhmdorfer, Michaela, Jäger, Walter, Riha, Juliane, Schiestl, Robert H, Szakmary, Akos, Szekeres, Thomas, Thalhammer, Theresia, Vaquero, Javier   +8 more
core   +2 more sources

Control of cell division in the adult brain by heparan sulfates in fractones and vascular basement membranes [PDF]

, 2010
Regulation of cell division in adult tissues and organs requires the coordination of growth factors at the surface of potentially-dividing cells in specific anatomic loci named germinal niches.
Frederic Mercier, Vanessa Douet
core   +1 more source

The anti‐CRISPR protein AcrIE8.1 inhibits the type I‐E CRISPR‐Cas system by directly binding to the Cascade subunit Cas11

FEBS Letters, EarlyView.
In this study, we present the structure of AcrIE8.1, a previously uncharacterized anti‐CRISPR protein that inhibits the type I‐E CRISPR‐Cas system. Through a combination of structural and biochemical analyses, we demonstrate that AcrIE8.1 directly binds to the Cas11 subunit of the Cascade complex to inhibit the CRISPR‐Cas system.
Young Woo Kang, Hyun Ho Park
wiley   +1 more source

Method for producing oxygen from lunar materials [PDF]

, 1993
This invention is related to producing oxygen from lunar or Martian materials, particularly from lunar ilmenite in situ. The process includes producing a slurry of the minerals and hot sulfuric acid, the acid and minerals reacting to form sulfates of the
Sullivan, Thomas A.
core   +1 more source

Structural insights into lacto‐N‐biose I recognition by a family 32 carbohydrate‐binding module from Bifidobacterium bifidum

FEBS Letters, EarlyView.
Bifidobacterium bifidum establishes symbiosis with infants by metabolizing lacto‐N‐biose I (LNB) from human milk oligosaccharides (HMOs). The extracellular multidomain enzyme LnbB drives this process, releasing LNB via its catalytic glycoside hydrolase family 20 (GH20) lacto‐N‐biosidase domain.
Xinzhe Zhang, Naoki Sunagawa, Toma Kashima, Kiyohiko Igarashi, Akimasa Miyanaga, Shinya Fushinobu   +5 more
wiley   +1 more source

Prognostic and mechanistic potential of progesterone sulfates in intrahepatic cholestasis of pregnancy and pruritus gravidarum

Hepatology, 2015
A challenge in obstetrics is to distinguish pathological symptoms from those associated with normal changes of pregnancy, typified by the need to differentiate whether gestational pruritus of the skin is an early symptom of intrahepatic cholestasis of ...
S. Abu‐Hayyeh, Caroline Ovadia, T. Lieu, D. Jensen, J. Chambers, P. Dixon, A. Lövgren-Sandblom, Ruth Bolier, D. Tolenaars, A. Kremer, A. Syngelaki, M. Noori, David J. Williams, J. Marin, M. Monte, K. Nicolaides, U. Beuers, R. Oude-Elferink, Paul Townsend Seed, L. Chappell, H. Marschall, N. Bunnett, C. Williamson   +22 more
semanticscholar   +1 more source

Real‐time assay of ribonucleotide reductase activity with a fluorescent RNA aptamer

FEBS Letters, EarlyView.
Ribonucleotide reductases (RNR) synthesize DNA building blocks de novo, making them crucial in DNA replication and drug targeting. FLARE introduces the first single‐tube real‐time coupled RNR assay, which enables isothermal tracking of RNR activity at nanomolar enzyme levels and allows the reconstruction of allosteric regulatory patterns and rapid ...
Jacopo De Capitani, Noemi E. Nwosu, Viktoria Gocke, Müge Kasanmascheff, Hannes Mutschler   +4 more
wiley   +1 more source

Novel High-Temperature Modification of Belomarinaite KNaSO₄: Crystal Structure and Thermal Order–Disorder Phase Transitions

Crystals, 2023
Belomarinaite KNaSO4 (space group P3m1, a = 5.6072(3), c = 7.1781(4) Å and Z = 2) has been studied by high-temperature single crystal X-ray diffraction. The K and Na atoms are disordered, and M1(1c) and M2(1b) sites merge into an M1(2d)(K50%/Na50%) site ...
Andrey Shablinskii, Rimma Bubnova, Olga Shorets, Maria Krzhizhanovskaya, Sergey Volkov, Stanislav Filatov   +5 more
doaj   +1 more source