Results 121 to 130 of about 172,294 (371)

THE SPITZER SPACE TELESCOPE SURVEY OF THE ORION A AND B MOLECULAR CLOUDS. I. A CENSUS OF DUSTY YOUNG STELLAR OBJECTS AND A STUDY OF THEIR MID-INFRARED VARIABILITY [PDF]

, 2012
We present a survey of the Orion A and B molecular clouds undertaken with the IRAC and MIPS instruments on board Spitzer. In total, five distinct fields were mapped, covering 9 deg2 in five mid-IR bands spanning 3–24 μm.
S. Megeath, R. Gutermuth, J. Muzerolle, E. Kryukova, K. Flaherty, J. Hora, L. Allen, L. Hartmann, P. Myers, J. Pipher, J. Stauffer, E. Young, G. Fazio   +12 more
semanticscholar   +1 more source

Developing evidence‐based, cost‐effective P4 cancer medicine for driving innovation in prevention, therapeutics, patient care and reducing healthcare inequalities

Molecular Oncology, EarlyView.
The cancer problem is increasing globally with projections up to the year 2050 showing unfavourable outcomes in terms of incidence and cancer‐related deaths. The main challenges are prevention, improved therapeutics resulting in increased cure rates and enhanced health‐related quality of life.
Ulrik Ringborg, Joachim von Braun, Julio Celis, Anton Berns, Michael Baumann, Tit Albreht, Nancy Abou‐Zeid, Vanderlei Bagnato, Christian Brandts, Chien‐Jen Chen, Massimiliano di Pietro, Manjit Dosanjh, Thomas Dubois, Alexander Eggermont, Angelika Eggert, Ingemar Ernberg, Sara Faithfull, Johannes Förner, Stefan Fröhling, Manuel Heitor, Leroy Hood, Wei Jiang, Bengt Jönsson, Ravi Kannan, Maria Leptin, Su Li, Peter Lindgren, Douglas Lowy, Jun Ma, Alex Markham, Péter Nagy, Simon Oberst, M. Iqbal Parker, Danielle Rodin, Kevin Ryan, Joachim Schüz, Richard Sullivan, Josep Tabernero, Peter Turkson, Oliver Várhelyi, Harold Varmus, Chijie Wang, Elisabete Weiderpass, Nils Wilking   +43 more
wiley   +1 more source

Multiple Shells Driven by Disk Winds: ALMA Observations in the HH 30 Outflow

The Astrophysical Journal
We present archival Atacama Large Millimeter/submillimeter Array band 6 observations of the ^13 CO ( J = 2–1) and ^12 CO ( J = 2–1) molecular line emission of the protostellar system associated with HH 30.
J. A. López-Vázquez, Chin-Fei Lee, M. Fernández-López, Fabien Louvet, O. Guerra-Alvarado, Luis A. Zapata   +5 more
doaj   +1 more source

Dammarenediol II enhances etoposide‐induced apoptosis by targeting O‐GlcNAc transferase and Akt/GSK3β/mTOR signaling in liver cancer

Molecular Oncology, EarlyView.
Etoposide induces DNA damage, activating p53‐dependent apoptosis via caspase‐3/7, which cleaves PARP1. Dammarenediol II enhances this apoptotic pathway by suppressing O‐GlcNAc transferase activity, further decreasing O‐GlcNAcylation. The reduction in O‐GlcNAc levels boosts p53‐driven apoptosis and influences the Akt/GSK3β/mTOR signaling pathway ...
Jaehoon Lee, Byung‐Cheol Han, Gi‐Bang Koo, Jihye Park, Mijin Kwon, Young Bin Park, Jae‐Mun Choi, Seung‐Ho Lee, Sangho Roh   +8 more
wiley   +1 more source

Optical spectra of selected Chamaeleon I young stellar objects

, 2003
We present optical spectra of eight candidate brown dwarfs and a previously known T Tauri star (Sz 33) of the Chamaeleon I dark cloud. We derived spectral types based on the strength of the TiO or VO absorption bands present in the spectra of these ...
Briceño, Briceño, Burrows, C. Saffe, Cambrésy, Chabrier, Comerón, D'Antona, D. Mardones, Elmegreen, G. Racca, Gómez, Gómez, Gómez, Hartigan, Henry, Kenyon, Kenyon, Kirkpatrick, Kirkpatrick, Lawson, M. Gómez, Magazzù, Martín, Martín, Martín, Muench, Natta, Neuhäuser, Neuhäuser, O'Connell, Oasa, P. Caselli, P. Persi, Persi, Pickett, Reipurth, Rieke, S. Randich, Schwartz, Whittet, Wilking   +41 more
core   +1 more source

The Pre-outburst Properties of the FU Ori Object HBC 722

The Astrophysical Journal Letters
FU Ori outbursts are thought to play an important role in stellar assembly and the evolution of protoplanetary disks. However, the progenitor young stellar objects are largely uncharacterized.
Gregory J. Herczeg, Bo Reipurth
doaj   +1 more source

The Early History of Stellar Spin: the Theory of Accretion onto Young Stellar Objects

EPJ Web of Conferences, 2014
The interaction of the magnetospheres of forming stars with their surrounding protostellar disks results in magnetospheric accretion flow onto the star. How is the associated angular momentum of accreting material channelled? The resolution of this issue
Pudritz Ralph E., Matt Sean
doaj   +1 more source

THE EVOLUTION OF ACCRETION IN YOUNG STELLAR OBJECTS: STRONG ACCRETORS AT 3–10 Myr [PDF]

, 2014
While the rate of accretion onto T Tauri stars is predicted to decline with age, objects with strong accretion have been detected at ages of up to 10 Myr.
L. Ingleby, N. Calvet, J. Hernández, L. Hartmann, C. Briceño, Jonathan M. Miller, C. Espaillat, M. McClure   +7 more
semanticscholar   +1 more source

Tumour–host interactions in Drosophila: mechanisms in the tumour micro‐ and macroenvironment

Molecular Oncology, EarlyView.
This review examines how tumour–host crosstalk takes place at multiple levels of biological organisation, from local cell competition and immune crosstalk to organism‐wide metabolic and physiological collapse. Here, we integrate findings from Drosophila melanogaster studies that reveal conserved mechanisms through which tumours hijack host systems to ...
José Teles‐Reis, Tor Erik Rusten
wiley   +1 more source

Discovery of dusty sub-solar mass young stellar objects in NGC 346 with JWST/NIRCam [PDF]

, 2023
Olivia Jones, Conor Nally, Nolan Habel, Laura Lenkić, Katja Fahrion, Alec S. Hirschauer, E. Schunová, M. Meixner, Guido De Marchi, Omnarayani Nayak, Massimo Robberto, Elena Sabbi, Peter Zeidler, Catarina Alves de Oliveira, Tracy L. Beck, K. Biazzo, Bernhard R. Brandl, Giovanna Giardino, Teresa Jerabkova, Charles Keyes, James Muzerolle, N. Panagia, K. M. Pontoppidan, Ciaran Rogers, B. A. Sargent, David R. Soderblom   +25 more
openalex   +1 more source