Results 91 to 100 of about 25,776,776 (296)

Evaluation of GSJ intrusive rocks JG1, JG2, JG3, JG1a, and JGb1 by an objective outlier rejection statistical procedure

Revista Mexicana de Ciencias Geológicas, 2018
An objective procedure involving fourteen statistical tests (a total of thirty-four variants) for detection and rejection of outliers in a univariate sample was applied to five geochemical Reference Material (RM) databases of intrusive rocks from the ...
Mirna Guevara, Surendra P. Verma, Fernando Velasco-Tapia   +2 more
doaj  

K-band spectroscopy of pre-cataclysmic variables [PDF]

, 2007
Aims. There exists now substantial evidence for abundance anomalies in a number of cataclysmic variables (CVs), indicating that the photosphere of the secondary star incorporates thermonuclear processed material. However, the spectral energy distribution
Ali, B. T. Gänsicke, Beuermann, Bonfils, Bragaglia, Bruch, Bruch, C. Tappert, Carpenter, Cushing, Downes, F. P. Navarrete, Förster Schreiber, Gänsicke, Haefner, Haefner, Harrison, Harrison, Harrison, Hoard, Hoard, Ivanov, Kawka, Kawka, Kilkenny, Kirkpatrick, Kleinmann, L. Schmidtobreick, Leggett, Liebert, Marks, Maxted, Morales-Rueda, O'Donoghue, Oliver, Patterson, Pols, R. E. Mennickent, Ritter, Rodgers, Rousselot, Saffer, Schenker, Schreiber, Silvestri, Stocke, Tappert, Thorstensen   +47 more
core   +2 more sources

A methionine‐lined active site governs carbocation stabilization and product specificity in a bacterial terpene synthase

FEBS Letters, EarlyView.
This study reveals a unique active site enriched in methionine residues and demonstrates that these residues play a critical role by stabilizing carbocation intermediates through novel sulfur–cation interactions. Structure‐guided mutagenesis further revealed variants with significantly altered product profiles, enhancing pseudopterosin formation. These
Marion Ringel, Carl P. O. Helmer, Shani Zev, Ronja Driller, Emily Buhr, Markus Reinbold, Renana Schwartz, Gabriel Foley, Mikael Boden, Daniel Garbe, Gerhard Schenk, Dan Thomas Major, Bernhard Loll, Thomas Brück   +13 more
wiley   +1 more source

Exothermic furnace module [PDF]

An exothermic furnace module is disclosed for processing materials in space which includes an insulated casing and a sample support, carried within the casing which supports a sample container.
Poorman, R. M.
core   +1 more source

Measurement of Elastoresistivity at Finite Frequency by Amplitude Demodulation

, 2018
Elastoresistivity, the relation between resistivity and strain, can elucidate subtle properties of the electronic structure of a material and is an increasingly important tool for the study of strongly correlated materials.
Fisher, Ian R., Hristov, Alexander T., Hwang, Harold Y., Merz, Tyler A., Palmstrom, Johanna C., Straquadine, Joshua A. W.   +5 more
core   +1 more source

Valosin‐containing protein counteracts ATP‐driven dissolution of FUS condensates through its ATPase activity in vitro

FEBS Letters, EarlyView.
Biomolecular condensates formed by fused in sarcoma (FUS) are dissolved by high ATP concentrations yet persist in cells. Using a reconstituted system, we demonstrate that valosin‐containing protein (VCP), an AAA+ ATPase, counteracts ATP‐driven dissolution of FUS condensates through its D2 ATPase activity.
Hitomi Kimura, Shin‐ichi Tate, Kyota Yasuda   +2 more
wiley   +1 more source

Analysis of broadband microwave conductivity and permittivity measurements of semiconducting materials

, 2008
We perform broadband phase sensitive measurements of the reflection coefficient from 45 MHz up to 20 GHz employing a vector network analyzer with a 2.4 mm coaxial sensor which is terminated by the sample under test.
Elvira Ritz, Martin Dressel, Mott N. F., Pozar D. M., Shklovskii B. I., Shklovskii B. I.   +5 more
core   +1 more source

Sample storage conditions significantly influence faecal microbiome profiles

Scientific Reports, 2015
Sequencing-based studies of the human faecal microbiota are increasingly common. Appropriate storage of sample material is essential to avoid the introduction of post-collection bias in microbial community composition.
J. Choo, L. Leong, G. Rogers
semanticscholar   +1 more source

Hyperosmotic stress induces PARP1‐mediated HPF1‐dependent mono(ADP‐ribosyl)ation

FEBS Letters, EarlyView.
Sorbitol‐induced hyperosmotic stress rapidly induces reversible mono(ADP‐ribosyl)ation (MARylation) on PARP1 without the signs of genotoxic signaling. We show that PARP1 autoMARylation is HPF1 dependent and forms hydroxylamine‐resistant O‐glycosidic linkages.
Anna Georgina Kopasz, Mihály Mérey, Rebeka Vásárhelyi, Ramóna Pék, Victor Imburchia, László Henn, Adrián Kószó, Nicholas D. Lakin, Ivan Ahel, Sébastien Huet, Ágnes Czibula, Gyula Timinszky   +11 more
wiley   +1 more source

Synthesis of biowaste-derived nanostructured material for the nanomolar detection of glucose: Biological sample analysis

Journal of Pharmaceutical and Biomedical Analysis Open
Glucose electro-oxidation in an alkaline media was investigated using an electrode composed of carbon paste and sugarcane bagasse activated carbon (SBAC). The SBAC was prepared using an easy, affordable, and environmental friendly process.
Shweta J. Malode, Shireesha Bilagi, Nagaraj P. Shetti   +2 more
doaj   +1 more source