Results 61 to 70 of about 5,149 (236)

Proton‐linked effects on the axial coordination in ferric and ferrous horse heart cytochrome c

open access: yesProtein Science, Volume 34, Issue 11, November 2025.
Abstract The effect of pH (between pH 7.0 and 0.0) on the spectroscopic properties of ferric and ferrous derivatives of horse heart cytochrome c (hhcytc‐Fe(III) and hhcytc‐Fe(II), respectively) in 1.0M phosphate buffer is reported. This study further deepens the investigation of spectroscopic properties of a heme‐protein to very low pH (i.e., pH ≈ 0 ...
Federico Sebastiani   +8 more
wiley   +1 more source

A Catalog of Photometric Redshift and the Distribution of Broad Galaxy Morphologies

open access: yesGalaxies, 2018
We created a catalog of photometric redshift of ∼3,000,000 SDSS galaxies annotated by their broad morphology. The photometric redshift was optimized by testing and comparing several pattern recognition algorithms and variable selection strategies, and ...
Nicholas Paul   +2 more
doaj   +1 more source

Tools for Learning—Promoting Reflection for Student Teachers' Development of PCK

open access: yesJournal of Research in Science Teaching, Volume 62, Issue 8, Page 1902-1922, October 2025.
ABSTRACT This paper investigates how the coherent integration of three different tools for reflection during a science methods course can contribute to student teachers' planning and enactment of science teaching, that is, their development of pedagogical content knowledge (PCK).
Pernilla Nilsson   +1 more
wiley   +1 more source

Where Have All the Little Red Dots Gone? Supermassive Black Hole Binary Dynamics and Its Impact on Galaxy Properties

open access: yesThe Astrophysical Journal Letters
Recent James Webb Space Telescope observations have revealed a peculiar class of galaxies at redshifts z  ≳ 6, characterized by extremely high central stellar densities and overmassive central supermassive black holes (SMBHs), “little red dots” (LRDs). A
Fazeel Mahmood Khan   +3 more
doaj   +1 more source

Galactic Density and Evolution Based on the Virial Theorem, Energy Minimization, and Conservation of Angular Momentum

open access: yesGalaxies, 2018
Spiral galaxies are spinning, internally densified objects. The Virial Theorem explains galactic rotation curves via its linkage of the rotation rate to the gravitational self-potential (Ug) and the moment of inertia of oblate spheroids.
Robert E. Criss, Anne M. Hofmeister
doaj   +1 more source

Multifunctional Chiral Halide Perovskites: Advancing Chiro‐Optics, Chiro‐Optoelectronics, and Spintronics

open access: yesAdvanced Science, Volume 12, Issue 34, September 11, 2025.
This review spotlights key advances in chiral halide perovskite materials and devices, covering device architectures, fabrication methods, and emerging applications like circularly polarized light functions, neuromorphic computing, and spintronics. It explores structure‐property relationships and chirality transfer mechanisms, discusses challenges in ...
Qi Liu, Hui Ren, Qi Wei, Mingjie Li
wiley   +1 more source

A review of multiscale numerical modeling of rock mechanics and rock engineering

open access: yesDeep Underground Science and Engineering, Volume 4, Issue 3, Page 382-405, September 2025.
Multiscale numerical methods of rock mechanics and rock engineering are reviewed, and the review results show that more attention should be paid to the development of an advanced constitutive model in addition to numerical techniques themselves. Abstract Rock is geometrically and mechanically multiscale in nature, and the traditional phenomenological ...
Xindong Wei, Zhe Li, Gaofeng Zhao
wiley   +1 more source

Thermotolerant class A acid phosphatase active across broad pH range and diverse substrates

open access: yesProtein Science, Volume 34, Issue 9, September 2025.
Abstract M2‐32 is a non‐specific acid phosphatase with a rare ability to function across a broad pH range (3.5–8.5). Analysis using SWISS‐PROT Prf Profiles classifies it as a class A acid phosphatase (Z‐score: 78.97), sharing 50%–60% sequence similarity with enzymes such as PhoC and PhoN.
Maria‐Isabel Recio   +7 more
wiley   +1 more source

Galaxy Formation from the Primordial Black Holes

open access: yesEPJ Web of Conferences, 2017
Supermassive black hole (SMBH) of size MBH = 106-10M⊙ is common in the Universe and it defines the center of the galaxy. A galaxy and the SMBH are generally thought to have co-evolved.
Morikawa Masahiro
doaj   +1 more source

The Stellar Kinematics of Elliptical Galaxies [PDF]

open access: yesSymposium - International Astronomical Union, 1987
The kinematic properties of elliptical galaxies are summarized. New developments are discussed in four areas: (i) the Faber-Jackson relation and the role of second parameters (ii) the luminosity-rotation relation (iii) the figures of elliptical galaxies and (iv) the mass-to-light ratio as a function of radius.
openaire   +3 more sources

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