Results 171 to 180 of about 776,248 (299)

Metasurface-enabled astronomical polarimetry. [PDF]

Sci Adv
Li LW, Oakley PHH, Schindhelm RN, Sellers SG, Casini R, Rubin NA.   +5 more
europepmc   +1 more source

Mechanistic Insights Into Sustainable Catalytic Pyrolysis of Biomass‐Derived Ferulic Acid: The Role of Alumina Regeneration

Chemistry – A European Journal, EarlyView.
Surface‐bound ferulate phenolate complexes undergo styrene‐like polymerization on alumina, yielding a polymeric carbonaceous layer that progressively transforms into polyaromatic carbon domains with concomitant release of aromatic products, while parallel surface‐assisted decarboxylation produces 4‐vinylguaiacol. ABSTRACT A fundamental understanding of
Tetiana V. Kulik, Borys B. Palianytsia, Mykola M. Ilchenko, Nataliia S. Nastasiienko, David J. Morgan, Liudmila P. Storozhuk, David J. Willock, Greg Shaw, Duncan F. Wass, Rafael Luque, Philip R. Davies, Mykola T. Kartel   +11 more
wiley   +1 more source

Direct evidence for magnetohydrodynamic disk winds driving rotating outflows in protostar HOPS 358. [PDF]

Nat Commun
Kim CH, Lee JE, Johnstone D, Herczeg GJ, Lee CF, Francis L, Sheehan PD.   +6 more
europepmc   +1 more source

Astronomy: Quasar birthpangs observed? [PDF]

Nature, 1985
openaire   +1 more source

Astronomy Online

This website, authored by Ricky Leon Murphy of Astronomy Online, is a collection of references, images, and information for general astronomy. This work covers topics from the basics of science and observation through the solar system, stars, cosmology ...
Murphy, Ricky Leon
core  

Reversible Cystine Disulfide Scaffolding Enables Carbonyl Sulfide‐Mediated Intramolecular Peptide Bond Formation via Cyclocystine: Implications for Prebiotic Chemistry

Chemistry – A European Journal, EarlyView.
Cystine is unique among amino acids, in that the disulfide bond can allow intramolecular peptide bond formation. This cyclization offers potential advantages for intramolecular coupling selectivity in prebiotic peptide formation. ABSTRACT Treatment of cystine (the disulfide‐linked dimer of cysteine) with carbonyl sulfide (COS) results in the formation ...
Avinash Vicholous Dass, Arthur Srayeddin, Anthony Rullo, Jonathan Stone, Maikel Rheinstadter, Paul Harrison   +5 more
wiley   +1 more source

Stochastic analysis of compact stars under composite polytropes. [PDF]

Sci Rep
Nouh MI, El-Essawy SH, Foda MM, Aboueisha MS.   +3 more
europepmc   +1 more source

Revisiting Fisher's n‐D statistical vision: From algebraic abstraction to modern visualization

Canadian Journal of Statistics, EarlyView.
Abstract We revisit early foundational results in mathematical statistics derived by Ronald A. Fisher. They involve sampling distributions of statistics calculated from independent and identically distributed Normal observations, namely the root mean square deviation; the mean absolute deviation, conditional on already knowing the value of the root ...
James A. Hanley
wiley   +1 more source

Non-gravitational acceleration indicative of cometary activity of near-Earth object. [PDF]

Nat Astron
Farnocchia D, Hainaut OR, Seligman DZ, Weryk R, Benner LAM, Brozović M, Denneau L, Galád A, Giorgini JD, Hornoch K, Micheli M, Naidu SP, Park RS, Pravec P, Wainscoat RJ.   +14 more
europepmc   +1 more source

Talin1 Adhesion Morphology and Colocalization With Tensin3 Are Largely Unaffected by Polyacrylamide Substrate Stiffness

Cytoskeleton, EarlyView.
ABSTRACT Cells sense the stiffness of their extracellular matrix (ECM) and adapt their behavior accordingly. We investigated how ECM stiffness affects the spatial organization of talin1, a key mechanosensitive focal adhesion protein. Using polyacrylamide (PA) hydrogels with tunable stiffnesses (0.2–188 kPa), we analyzed cell morphology, migration ...
Joanna Hajduk, Patrycja Twardawa, Sylwia Bobis‐Wozowicz, Marta Szewczyk, Zenon Rajfur, Zbigniew Baster   +5 more
wiley   +1 more source