Results 121 to 130 of about 517,834 (312)

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

Protein 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, José A. Gavira, Jesús de La Torre, Mario Cano‐Muñoz, Sergio Martínez‐Rodriguez, Abdelali Daddaoua, Estrella Duque, Juan L. Ramos   +7 more
wiley   +1 more source

Stellar populations in gas-rich galaxy mergers I. Dependence on star formation history

, 1998
We investigate the nature of stellar populations of major galaxy mergers between late-type spirals considerably abundant in interstellar medium by performing numerical simulations designed to solve both the dynamical and chemical evolution in a self ...
Bekki, Kenji, Shioya, Yasuhiro
core   +1 more source

Kinematics and stellar populations of the dwarf elliptical galaxy IC 3653 [PDF]

, 2007
We present the first 3D observations of a diffuse elliptical galaxy (dE). The good quality data (S/N up to 40) reveal the kinematical signature of an embedded stellar disc, reminiscent of what is commonly observed in elliptical galaxies, though ...
I. Chilingarian, P. Prugniel, O. Sil’chenko, V. Afanasiev   +3 more
semanticscholar   +1 more source

The Extremely Low Mechanical Force Generated by Nano‐Pulling Induces Global Changes in the Microtubule Network, Nuclear Morphology, and Chromatin Transcription in Neurons

Small, Volume 21, Issue 38, September 25, 2025.
Nano‐pulling induces stabilization, reorganization, and reorientation of the microtubule network. The nucleus of stretched cells experiences increased lateral tension, becomes more spherical, and develops surface grooves. At the level of gene expression regulation, changes in nuclear morphology induce global chromatin remodeling, leading to reduced ...
Alessandro Falconieri, Lorenzo Da Palmata, Valentina Cappello, Tiziana Julia Nadjeschda Schmidt, Pietro Folino, Barbara Storti, Ranieri Bizzarri, Vittoria Raffa   +7 more
wiley   +1 more source

Galaxy Formation from the Primordial Black Holes

EPJ 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

Imaging of the protoelliptical NGC 1700 and its globular cluster system

, 2000
An excellent candidate for a young elliptical, or `protoelliptical' galaxy is NGC 1700. Here we present new B, V and I band imaging using the Keck telescope and reanalyse existing V and I band images from the Hubble Space Telescope.
Ashman, Ashman, Ashman, Bahcall, Balcells, Bender, Bender, Bertin, Couture, de Vaucouleurs, Duncan A. Forbes, Fisher, Forbes, Forbes, Forbes, Forbes, Forbes, Franx, Franx, Fritze, Gebhardt, Geisler, Gonzalez, Goudfrooij, Grillmair, Hanes, Harris, Harris, Hartigan, Holtzman, Jean P. Brodie, Keel, King, Koo, Landolt, Lauer, Markus Kissler-Patig, Mihos, Poulain, Prugniel, Richard J. N. Brown, Sandage, Schweizer, Statler, Thomson, Toomre, Whitmore, Worthey, Yoshii, Zepf   +49 more
core   +1 more source

Planetary Nebulae and Stellar Kinematics in the Flattened Elliptical Galaxy NGC 1344 [PDF]

, 2005
We present photometric and kinematic information obtained by measuring 197 planetary nebulae (PNs) discovered in the flattened Fornax elliptical galaxy NGC 1344 (also known as NGC 1340) with an on-band, off-band, and grism+on-band filter technique.
A. Teodorescu, Roberto H. Méndez, R. Saglia, A. Riffeser, R. Kudritzki, O. Gerhard, J. Kleyna   +6 more
semanticscholar   +1 more source

Reassessing the Relationship Between Meteor Radio Afterglows and Optical Persistent Trains

Journal of Geophysical Research: Space Physics, Volume 130, Issue 9, September 2025.
Abstract Meteor radio afterglows (MRAs) and optical persistent trains (PTs) are two types of long‐lived phenomena which are occasionally observed following the occurrence of a meteor. Both phenomena are thought to be produced by intrinsic emission mechanisms; PTs have been associated with chemiluminescent reactions between meteoric metals and ...
L. E. Cordonnier, K. S. Obenberger, G. B. Taylor, J. M. Holmes, J. Dowell, D. Vida   +5 more
wiley   +1 more source

Evidence for the Evolution of Young Early-Type Galaxies in the GOODS/CDF-S Field

, 2007
We have developed an efficient photometric technique for identifying young early-type galaxy candidates using a combination of photometric redshifts, spectral-type classification, and optical/near-infrared colors.
Bahram Mobasher, Barger A. J., Belloni P., Couch W. J., Daddi E., Larson R. B., Maddox S. J., Mobasher B., Paul Goudfrooij, Renzini A., Simpson C., Thomas H. Puzia   +11 more
core   +1 more source

ELLIPTICITIES OF ELLIPTICAL GALAXIES IN DIFFERENT ENVIRONMENTS

The Astrophysical Journal, 2016
ABSTRACT We studied the ellipticity distributions of elliptical galaxies in different environments. From the ninth data release of the Sloan Digital Sky Survey, we selected galaxies with absolute -band magnitudes between −21 and −22.
Cheng-Yu Chen, Chorng-Yuan Hwang, Chung-Ming Ko   +2 more
openaire   +1 more source