Results 81 to 90 of about 28,402 (294)

Feedback in Galaxy Formation

, 2011
I review the outstanding problems in galaxy formation theory, and the role of feedback in resolving them. I address the efficiency of star formation, the galactic star formation rate, and the roles of supernovae and supermassive black holes.Comment: To ...
Antonuccio-Delogu, Boomsma, Heald, Joseph Silk, LeAAAABorne, Norman   +5 more
core   +1 more source

Starbursts and the triggering of the activity in nearby powerful radio galaxies [PDF]

, 2004
We present high quality long-slit spectra for three nearby powerful radio galaxies 3C293, 3C305, PKS1345+12. These were taken with the aim of characterising the young stellar populations (YSP), and thereby investigating the evolution of the host galaxies,
Allen, Allington-Smith, Aretxaga, Axon, Baan, Baum, Blundell, Bruzual, Bruzual, C. Tadhunter, Canalizo, Charlot, Chiaberge, Cimatti, Cimatti, Cohen, Dickson, Draper, Dunlop, Evans, Evans, Genzel, Golombek, González Delgado, González Delgado, Heckman, Heckman, Heckman, Holt, Impey, Jackson, K. Wills, Kauffmann, Kauffmann, Kuntschner, Kuntschner, Lilly, Madau, Menanteau, Mengel, Mirabel, Morganti, Morganti, Morganti, R. M. González Delgado, R. Morganti, Rees, Robinson, Rodighiero, Salpeter, Sanders, Sanders, Schlegel, Seaton, Shaw, Smith, Smith, Smith, Smith, Stanghellini, Surace, T. G. Robinson, Tadhunter, Tadhunter, Tadhunter, Tadhunter, van Breugel, van Breugel, Wills, Wills, Wilson, Zepf, Zirbel   +72 more
core   +2 more sources

Microtopography enhances intestinal drug absorption via Piezo1‐mediated tight junction modulation

BMEMat, EarlyView.
Microtopography‐driven enhancement of oral peptide drug delivery by activating Piezo1 channels significantly improves paracellular permeability and bioavailability, offering a novel approach for optimizing macromolecule absorption in pharmaceutical formulations.
Yu Hu, Nan Xu, Xin Li, Xiaowo Kang, Tieyuan Bian, Junsheng Lin, Hao Tang, Yinyin Bao, Lu Zhang, Hongyan Yuan, Mingxi Yao, Xingyu Jiang, Zhi Luo   +12 more
wiley   +1 more source

The dynamics, appearance and demographics of relativistic jets triggered by tidal disruption of stars in quiescent supermassive black holes

, 2012
We examine the consequences of a model in which relativistic jets can be triggered in quiescent massive black holes when a geometrically thick and hot accretion disk forms as a result of the tidal disruption of a star.
Ayal, Berger, Bogdanović, Bromberg, Cannizzo, Cenko, Chen, De Colle, De Colle, Enrico Ramirez-Ruiz, Fabio De Colle, Fender, Frank, Fryxell, Garcia, Gezari, Greene, Guillochon, Guillochon, Guillochon, Gültekin, James Guillochon, Jill Naiman, Kelly, Kobayashi, Krolik, Krolik, Lazzati, Loeb, Merritt, Merritt, Mïller, Naiman, Najarro, Ouyed, Quataert, Quataert, Ramirez-Ruiz, Ramirez-Ruiz, Rosswog, Shao, Socrates, Tout, Wang, Woosley, Xiao   +45 more
core   +1 more source

Subterranean environments contribute to three‐quarters of classified ecosystem services

Biological Reviews, EarlyView.
ABSTRACT Beneath the Earth's surface lies a network of interconnected caves, voids, and systems of fissures forming in rocks of sedimentary, igneous, or metamorphic origin. Although largely inaccessible to humans, this hidden realm supports and regulates services critical to ecological health and human well‐being.
Stefano Mammola, David Brankovits, Tiziana Di Lorenzo, Isabel R. Amorim, Raluca Ioana Bancila, Adrià Bellvert, Enrico Bernard, Anna Blomberg, Paulo A.V. Borges, Martina Cappelletti, Rodrigo Lopes Ferreira, Rosalina Gabriel, Diana M. P. Galassi, Laura Garzoli, Vasilis Gerovasileiou, Grant C. Hose, Kathryn L. Korbel, Simone Martino, Ana Z Miller, Nataša Mori, Veronica Nanni, Giuseppe Nicolosi, Mattia Saccò, Troy S. Sakihara, Marconi Souza Silva, Anne E. Tamalavage, Maja Zagmajster, Efraín Chávez, Christian Griebler, Pedro Cardoso, Alejandro Martínez   +30 more
wiley   +1 more source

Continuous chest compressions with a simultaneous triggered ventilator in the Munich Emergency Medical Services: a case series

GMS German Medical Science, 2019
Background: Mechanical chest compression devices are commonly used providing a constant force and frequency of chest compression during cardiopulmonary resuscitation.
Schaller, Stefan J., Altmann, Sonja, Unsworth, Annalise, Schneider, Gerhard, Bogner-Flatz, Viktoria, Paul, Thomas, Hoppmann, Petra, Kanz, Karl-Georg   +7 more
doaj   +1 more source

The nearby QSO host I Zw 1: The stellar disk and adjacent objects

, 2007
The relation between tidal interactions, starbursts, and the onset and/or fueling of active galactic nuclei (AGN) is a matter of debate. I Zw 1 is considered as the prototypical narrow-line Seyfert 1 galaxy (NLS1) and as one of the closest quasi-stellar ...
A. Eckart, Boller, Botte, Braine, Brandt, Bushouse, Canalizo, Cohen, Condon, Corbin, Dahari, Dasyra, de Robertis, Di Matteo, Duc, Dultzin-Hacyan, Dunlop, Eckart, Erben, Gallo, González-García, Grogin, Haas, Hernquist, Hernquist, Hopkins, Hopkins, Hopkins, Hummer, Hutchings, I. Saviane, J. Scharwächter, J. Zuther, Kauffmann, Kawara, Koulouridis, Lancon, Laor, Laurikainen, Leighly, Lim, Maiolino, Mathur, Naab, Naab, Neugebauer, Neugebauer, Oke, Osterbrock, Persson, Phillips, Pounds, Rafanelli, S. Pfalzner, Sanders, Sargent, Sargent, Scharwächter, Schinnerer, Schmidt, Sosa-Brito, Staguhn, Stockton, Surace, Surace, Tacconi, Veilleux, Véron-Cetty, Yuan   +68 more
core   +1 more source

Framing Modern Slavery: Do Stakeholders Talk Past Each Other?

Canadian Journal of Administrative Sciences / Revue Canadienne des Sciences de l'Administration, EarlyView.
ABSTRACT Modern slavery literature has thus far mostly adopted a downstream perspective, in the sense that researchers investigated corporate actors' responses after the enactment of transparency legislation. The common finding is that corporate disclosure is poor and ineffective, contributing to a failure to eradicate modern slavery.
Sylvain Durocher, Darlene Himick, Leigh Ellen Walsh   +2 more
wiley   +1 more source

Morphodynamic of Tidal Flat Profiles in an Erosion-to-Accretion Transitional Coastal Segment Under Wave–Current Interaction: A Case Study of Dafeng Port, China

Journal of Marine Science and Engineering
Understanding the morphodynamic evolution of muddy coasts under complex wave–tidal forcing is crucial for effective coastal management, particularly under the unstable hydrodynamic conditions associated with global climate change.
Tianjun Li, Yifei Zhao, Lizhu Wang, Hong Zhang, Min Xu, Jicheng Cao   +5 more
doaj   +1 more source

Distribution of iron- and sulfate-reducing bacteria across a coastal acid sulfate soil (CASS) environment: implications for passive bioremediation by tidal inundation

Frontiers in Microbiology, 2015
Coastal acid sulfate soils (CASS) constitute a serious and global environmental problem. Oxidation of iron sulfide minerals exposed to air generates sulfuric acid with consequently negative impacts on coastal and estuarine ecosystems.
Yu-Chen eLing, John W Moreau, Lyndon eBerwick, Svenja eTulipani, Kliti eGrice, Richard eBush   +5 more
doaj   +1 more source