Results 131 to 140 of about 89,392 (297)

Developmental Hypoxia Enhances Kidney Organoid Complexity and Maturity

Advanced Science, Volume 12, Issue 40, October 27, 2025.
The current bottleneck in metanephric mesenchyme (MM)‐derived nephron organoid development is the absence of a connected network of collecting ducts (CD) derived from the ureteric bud (UB). To address this limitation, this study proposes a hypoxia‐based differentiation method that mimics the natural renal developmental environment, enabling the ...
Hyeonji Lim, Dohui Kim, Haejin Yoon, Joo H. Kang, Yong Jun Kim, Dong Sung Kim, Tae‐Eun Park   +6 more
wiley   +1 more source

The ACS Nearby Galaxy Survey Treasury. X. Quantifying the Star Cluster Formation Efficiency of Nearby Dwarf Galaxies

, 2012
We study the relationship between the field star formation and cluster formation properties in a large sample of nearby dwarf galaxies. We use optical data from the Hubble Space Telescope and from ground-based telescopes to derive the ages and masses of ...
Anil C. Seth, Bastian, Bertelli, Billett, Boselli, Bressan, Bressert, Buat, Chandar, Chandar, Chandar, Charles W. Engelbracht, da Silva, Dalcanton, Dale, Dale, Daniel A. Dale, Daniel R. Weisz, David O. Cook, Dohm-Palmer, Evans, Fall, Fall, Fioc, Fouesneau, Fumagalli, Gieles, Girardi, Goddard, Groenewegen, Hunter, Hunter, Hunter, Hénon, Julianne J. Dalcanton, Karachentsev, Kennicutt, Knut A. G. Olsen, Kroupa, L. Clifton Johnson, Larsen, Larsen, Lee, Lee, Leroy, Marble, Maíz Apellániz, McCrady, McQuinn, Meurer, Morgan Fouesneau, Moustakas, Muñoz-Mateos, Popescu, Porras, Schlegel, Weisz, Weisz, Weisz, Whitmore, Whitmore, Zhang   +61 more
core   +1 more source

Selecting Clusters and Protoclusters via Stellar Mass Density. I. Method and Tests on Mock HSC-SSP Catalogs

The Astrophysical Journal
We present an algorithm designed to identify galaxy (proto)clusters in wide-area photometric surveys by first selecting their dominant galaxy—i.e., the brightest cluster galaxy (BCG) or protoBCG—through the local stellar mass density traced by massive ...
Marcelo C. Vicentin, Pablo Araya-Araya, Laerte Sodré Jr., Michael A. Strauss   +3 more
doaj   +1 more source

Hidden in Plain Sight: Integrative Taxonomy Discovers Two New Species of Digitate Soft Corals in the Urban Waters of China's Greater Bay Area

Ecology and Evolution, Volume 15, Issue 10, October 2025.
This article identified two novel soft coral species (Parasphaerasclera dimorpha sp. nov. and Paraminabea inflata sp. nov.) from urbanized South China Sea waters, distinct in morphology and genetics. Our study highlighted undocumented coral diversity in the hyper‐urbanized Greater Bay Area, emphasizing the need for cryptic species documentation in ...
Yi‐Xuan Li, Janice Wingyan Ng, Haixin Loke, Lan Liu, Jian‐Wen Qiu   +4 more
wiley   +1 more source

KINEMATICS OF 13 BRIGHTEST CLUSTER GALAXIES

The Astrophysical Journal, 1995
Velocity dispersion profiles and rotation curves have been determined for a sample of 13 brightest duster galaxies (BCGs) in order to study their internal stellar kinematics and investigate their relationship to ellipticals. We find that BCGs generally display velocity dispersion profiles with gradients similar to those found in normal bright ...
FISHER, D, ILLINGWORTH, G, FRANX, M
openaire   +3 more sources

Morphometric analysis of brightest cluster galaxies

Monthly Notices of the Royal Astronomical Society, 2020
ABSTRACT We study the build-up of the stellar mass of brightest cluster galaxies (BCGs) at z < 0.1 as a function of their morphological type. Morphometric parameters for 1216 BCGs were obtained from the SDSS DR12 r-band images with the code morfometryka.
J Cougo, S B Rembold, F Ferrari, A L P Kaipper   +3 more
openaire   +1 more source

Loss of PI3Kδ Activity Drives Autoimmune Colitis by Impairing Extrathymic Treg Differentiation

European Journal of Immunology, Volume 55, Issue 10, October 2025.
Mice with inactivated PI3Kδ develop colitis, reminiscent of immune‐related adverse effects observed in human patients treated with PI3Kδ inhibitors. We demonstrate that loss of PI3Kδ activity abrogates the Helios− peripherally induced Treg (pTreg) population in the mouse colon, resulting in inflammation and tissue damage that Helios+ thymic Tregs fail ...
Ee Lyn Lim, Yamin Qian, Fuminori Sugihara, Atsushi Tanaka, Shimon Sakaguchi   +4 more
wiley   +1 more source

The luminosity function of cluster galaxies. II. Data reduction procedures applied to the cluster Abell 496 [PDF]

, 1999
We initiated a large project aimed to estimate the Luminosity Function of galaxies in clusters and to evaluate its relation to cluster morphology. With this paper we deem necessary to outline the general procedures of the data reduction and details of ...
Chincarini, G., De Grandi, S., Molinari, E., Moretti, A.   +3 more
core   +2 more sources

Brightest cluster galaxies and the intracluster light

In this chapter, we delve into the formation and primary characteristics of two significant components within galaxy clusters: the brightest cluster galaxies (BCGs) and the intracluster light (ICL). Drawing upon recent and pertinent studies in the field, we explore the mechanisms driving their growth from high redshift to the present day, i.e., mergers
Contini, Emanuele, Yi, Sukyoung K., Jeon, Seyoung   +2 more
openaire   +2 more sources

A Chromosome Inversion Creates a Supergene for Sex and Colour in Lake Malawi Cichlids

Molecular Ecology, Volume 34, Issue 20, October 2025.
ABSTRACT Cichlid fishes have the highest rates of evolutionary turnover of sex chromosomes among vertebrates. Many large structural polymorphisms in the radiation of cichlids in Lake Malawi are associated with sex chromosomes and may also carry adaptive variation.
Kristen A. Behrens, Soumya Jailwala, Frances E. Clark, Anne C. Meyer, Nikesh M. Kumar, Adrianus F. Konings, Reade B. Roberts, Matthew A. Conte, Jeffrey T. Streelman, Patrick T. McGrath, Thomas D. Kocher   +10 more
wiley   +1 more source