Results 41 to 50 of about 970,952 (293)

Optical colours of AGN in the Extended Chandra Deep Field South: Obscured black holes in early type galaxies

, 2007
We investigate the optical colours of X-ray sources from the Extended Chandra Deep Field South (ECDFS) using photometry from the COMBO-17 survey, aiming to explore AGN - galaxy feedback models.
Akylas, Baldry, Barger, Bauer, Bell, Bell, Brusa, Cavaliere, Conselice, Croton, E. Rovilos, Fabian, Ferrarese, Gebhardt, Georgakakis, Georgakakis, Granato, Hopkins, Hopkins, Hopkins, Hopkins, I. Georgantopoulos, Kauffmann, King, Larson, Lauer, Le Fèvre, Lehmann, Lehmer, Magorrian, Menci, Menci, Merritt, Mignoli, Monaco, Mouri, Nandra, Nandra, Page, Radomski, Rix, Roche, Sanders, Severgnini, Shankar, Shankar, Silverman, Stockton, Szokoly, Sánchez, Ueda, Vittorini, Wilkes, Wolf, Wolf, Zheng   +55 more
core   +1 more source

An upstream open reading frame regulates expression of the mitochondrial protein Slm35 and mitophagy flux

FEBS Letters, EarlyView.
This study reveals how the mitochondrial protein Slm35 is regulated in Saccharomyces cerevisiae. The authors identify stress‐responsive DNA elements and two upstream open reading frames (uORFs) in the 5′ untranslated region of SLM35. One uORF restricts translation, and its mutation increases Slm35 protein levels and mitophagy.
Hernán Romo‐Casanueva, Ariann E. Mendoza‐Martínez, P. Abril Medina‐Flores, Carlos Campero‐Basaldua, Alexander DeLuna, Soledad Funes   +5 more
wiley   +1 more source

Evaluation of iron deposition in brain basal ganglia of patients with Parkinson's disease using quantitative susceptibility mapping

European Journal of Radiology Open, 2019
Aim of the study: Parkinson's disease is associated with iron deposition in the brain. The QSM (quantitative susceptibility mapping) is more sensitive than T2-weighted imaging, T2* and R2.
Vahid Shahmaei, Fariborz Faeghi, Ahmad Mohammadbeigi, Hasan Hashemi, Farzad Ashrafi   +4 more
doaj   +1 more source

Near-Infrared Adaptive Optics Imaging of the Central Regions of Nearby Sc Galaxies. II. NGC 247 and NGC 2403

, 2002
J, H, and K' images obtained with the Canada-France-Hawaii Telescope adaptive optics system are used to investigate the star-forming histories of the central regions of the Sc galaxies NGC 247 and NGC 2403.
Andredakis Y., Bica E., Feltzing S., Friedli D., Friedli D., Gneden N. Y., Petersen L., Pierini D., Rozanski R., S. Courteau, Sil’Chenko O. K., Steinmetz M., T. J. Davidge, Tarrab I.   +13 more
core   +2 more sources

Extended Gas in Seyfert Galaxies: Near Infrared Observations of NGC 2110 and Circinus [PDF]

, 1998
We present results of near--IR long-slit spectroscopy in the J and K bands of the Seyfert 2 galaxies NGC 2110 and Circinus, investigating the gaseous distribution, excitation, reddening and kinematics.
Storchi-Bergmann, T., Ward, Martin J., Wilson, A. S., Winge, C.   +3 more
core   +2 more sources

Structural biology of ferritin nanocages

FEBS Letters, EarlyView.
Ferritin is a conserved iron‐storage protein that sequesters iron as a ferric mineral core within a nanocage, protecting cells from oxidative damage and maintaining iron homeostasis. This review discusses ferritin biology, structure, and function, and highlights recent cryo‐EM studies revealing mechanisms of ferritinophagy, cellular iron uptake, and ...
Eloise Mastrangelo, Flavio Di Pisa
wiley   +1 more source

Excitatory rubral cells encode the acquisition of novel complex motor tasks

Nature Communications, 2019
The red nucleus (RN) is a midbrain nucleus known to be involved in the fine control of limb movements, but its role in motor learning is unclear. Here, the authors identified a neuronal population within the red nucleus, co-expressing Vglut2, PV and ...
Giorgio Rizzi, Mustafa Coban, Kelly R. Tan   +2 more
doaj   +1 more source

Detailed abundances of a large sample of giant stars in M 54 and in the Sagittarius nucleus

, 2010
Homogeneous abundances of light elements, alpha and Fe-group elements from high-resolution FLAMES spectra are presented for 76 red giant stars in M54, a massive globular cluster (GC) lying in the nucleus of the Sagittarius dwarf galaxy.
A. Bragaglia, Alonso, Arnett, Arnould, Battaglia, Baumgardt, Bekki, Bekki, Bellazzini, Boker, Bragaglia, Bragaglia, Brown, Cardelli, Carretta, Carretta, Carretta, Carretta, Carretta, Carretta, Carretta, Carretta, Carretta, Carretta, Carretta, Cohen, D'Ercole, Da Costa, Denisenkov, E. Carretta, F. Leone, Fulbright, G. Catanzaro, G. Piotto, Georgiev, Giuffrida, Gratton, Gratton, Gratton, Gratton, Gratton, Gratton, Harris, Ibata, Johnson, Kraft, Kravtsov, Langer, Layden, Leaman, Letarte, M. Bellazzini, Magain, Majewski, Marigo, Marino, Matteucci, McKee, McWilliam, McWilliam, Monaco, Monaco, Monaco, Monaco, Niederste-Ostholt, Norris, Paltoglou, Pasquini, R. G. Gratton, Reddy, S. Lucatello, Sbordone, Searle, Shetrone, Siegel, Skrutskie, Smith, Smith, Suntzeff, Tinsley, Tolstoy, Tolstoy, V. D'Orazi, Venn, Wheeler, Woosley, Y. Momany, Yong, Zaritsky   +88 more
core   +1 more source

SN2012ab: A Peculiar Type IIn Supernova with Aspherical Circumstellar Material [PDF]

, 2017
We present photometry, spectra, and spectropolarimetry of supernova (SN) 2012ab, mostly obtained over the course of $\sim 300$ days after discovery.
Akerlof, Carl, Andrews, Jennifer E., Bilinski, Christopher, Chatzopoulos, E., Filippenko, Alexei V., Graham, Melissa L., Hoffman, Jennifer L., Huk, Leah, Leonard, Douglas C., Marion, G. H., Mauerhan, Jon C., Milne, Peter, Quimby, Robert M., Silverman, Jeffrey M., Smith, Nathan, Smith, Paul, Vinkó, Jozsef, Wheeler, J. Craig, Williams, G. Grant, Yuan, Fang, Zheng, WeiKang   +20 more
core   +3 more sources

Transferrin receptor 1‐mediated iron uptake supports thermogenic activation in human cervical‐derived adipocytes

FEBS Letters, EarlyView.
In this study, we found that human cervical‐derived adipocytes maintain intracellular iron level by regulating the expression of iron transport‐related proteins during adrenergic stimulation. Melanotransferrin is predicted to interact with transferrin receptor 1 based on in silico analysis.
Rahaf Alrifai, Mizuki Seo, Gyath Karadsheh, Fachrur Rizal Mahendra, Máté Á Demény, Ferenc Győry, János András Mótyán, László Fésüs, Endre Kristóf, Rini Arianti   +9 more
wiley   +1 more source