Results 101 to 110 of about 84,685 (303)

Chemical abundances in HII regions and temperature fluctuations

, 2007
H II regions are essential tools for the study of the chemical composition and chemical evolution of the Universe, specially in the extragalactic domain.
García-Rojas, Jorge
core   +1 more source

Engineered extracellular vesicles enriched with the miR‐214/199a cluster enhance the efficacy of chemotherapy in ovarian cancer

Molecular Oncology, EarlyView.
Loss of the miR‐214/199a cluster is associated with recurrence in ovarian cancer. Engineered small extracellular vesicles (m214‐sEVs) elevate miR‐214‐3p/miR‐199a‐5p in tumor cells, suppress β‐catenin, TLR4, and YKT6 signaling, reprogram tumor‐derived sEV cargo, reduce chemoresistance and migration, and enhance carboplatin efficacy and survival in ...
Weida Wang, Ayesha Alvero, Yi Qin, Mingjin Wang, Alexandra Fox, Yanfeng Li, Michael Millman, Amy Kemper, Gil Mor, Xian Shuang Liu, Michael Chopp, Zheng Gang Zhang, Yi Zhang   +12 more
wiley   +1 more source

Chemical abundances in leading arm and stream

, 2019
The Magellanic Stream and its Leading Arm provide an unparalleled opportunity to map out the chemical abundances in a gaseous tidal stream. UV absorption-line studies with the HST/COS spectrograph have confirmed that the two main filaments of the ...
Fox, Andrew (8180115), Fox, Andrew
core   +1 more source

Interrogating the immune landscape of microsatellite stable RAS‐mutated colon cancer

Molecular Oncology, EarlyView.
COLOSSUS project RAS‐mutated MSS colon cancer study explored transcriptomics and immune cell density by immunohistochemistry (IHC), Immunoscore (IS), ISIC/TuLIS scores, mutation counts, and detected different prevalences but similar microenvironment composition across immune markers with clinical relevance for future immunotherapy combination ...
Rodrigo Dienstmann, Eduardo García‐Galea, Alice O'Farrell, Zak Kinsella, Maxime Meylan, Florent Petitprez, Ingrid Arijs, Tom Venken, Hari Ps, Adrian Lärkeryd, Ian Miller, Janick Selves, Nadja Meindl‐Beinker, Fiorella Ruiz‐Pace, Elena Élez, Raquel Comas‐Navarro, Frank Lincoln, Dirk Fey, Gift Nyamundanda, Aoife Nolan, Joern Lewin, Raquel Perez‐Lopez, Jonathan Briody, Kathleen Bennett, Walter Kolch, David Matallanas, Alexander Kel, Enrique Arenas, Joaquín Arribas, Bart Ghesquière, Josep Tabernero, Julie Meilleroux, Deborah McNamara, Ray McDermott, Marvin Lim, Mary O'Reilly, Brian Bird, Lisa Stack, Lucia Moloney, Patrick Morris, Keith Egan, Maciej Milewski, Lars Scheuer, Joachim Behringer, Georg Bolz, Ramon Salazar, Cristina Santos, Andrea Ruiz, Orla Casey, Verena Murphy, Matthias Ebert, Livio Trusolino, Diether Lambrechts, Anguraj Sadanandam, Catherine Sautès‐Fridman, Jochen Prehn, Paolo Nuciforo, Jacques Fieschi, Florence Monville, Darran O'Connor, Wolf Fridman, Annette Byrne   +61 more
wiley   +1 more source

Chemical Abundances in SFG and DLA

, 2005
We investigate the chemical abundances of local star-forming galaxies which cause Damped Lyman Alpha lines. A metallicity versus redshift diagram is constructed, on which the chemical abundances of low-redshift star-forming galaxy populations are compared with those of high-redshift Damped Lyman Alpha systems.
Schulte-Ladbeck, Regina E., König, Brigitte, Cherinka, Brian   +2 more
openaire   +2 more sources

Chemical abundances from planetary nebulae in local spiral galaxies

, 2015
While the chemical abundances observed in bright planetary nebulae in local spiral galaxies are less varied than their counterparts in dwarfs, they provide new insight.
Marshall L. McCall, Michael G. Richer
core   +1 more source

Stellar chemical abundances: In pursuit of the highest achievable precision [PDF]

, 2015
The achievable level of precision on photospheric abundances of stars is a major limiting factor on investigations of exoplanet host star characteristics, the chemical histories of star clusters, and the evolution of the Milky Way and other galaxies ...
Bedell, Megan, Ramirez, Ivan, Leite, Paulo, Asplund, Martin, Bean, Jacob, Melendez, Jorge   +5 more
core   +1 more source

IMPDH inhibition enhances cytarabine efficacy in SAMHD1‐expressing leukaemia cells via guanine nucleotide depletion

Molecular Oncology, EarlyView.
Cytarabine is a key therapy for acute myeloid leukaemia (AML), but its efficacy is limited by the dNTPase SAMHD1, which hydrolyses its active metabolite. Screening nucleotide biosynthesis inhibitors revealed that IMPDH inhibitors selectively sensitise SAMHD1‐proficient AML cells to cytarabine.
Miriam Yagüe‐Capilla, Christopher Dirks, Caroline Eiden, Sonja K. Fesenmayer, Femke M. Hormann, Yolande Klootsema, Ingrid Lilienthal, Si Min Zhang, Nikolas Herold, Sean G. Rudd   +9 more
wiley   +1 more source

Chemical abundances of hot post-AGB stars

, 2012
Context. Hot post-AGB stars are luminous objects of low- and intermediate mass (0.8–8 M⊙) in the final stage of evolution, moving between the asymptotic giant branch (AGB) stars and planetary nebulae.
S. Daflon, I. Hubeny, C. B. Pereira, D. R. C. Mello   +3 more
core   +1 more source

ASPCAP: THE APOGEE STELLAR PARAMETER AND CHEMICAL ABUNDANCES PIPELINE [PDF]

, 2016
The Apache Point Observatory Galactic Evolution Experiment (APOGEE) has built the largest moderately highresolution (R≈22,500) spectroscopic map of the stars across the Milky Way, and including dust-obscured areas.
Cunha, Katia, Zamora, O, Frinchaboy, Peter M., Meszaros, S, Shetrone, Matthew, Zasowski, Gail, Johnson, Jennifer A., Schiavon, RP, Troup, N, Bovy, J, Frinchaboy, PM, Schiavon, Ricardo P., Holtzman, JA, Feuillet, Diane, Smith, VV, Eisenstein, DJ, Zamora, Olga, Bizyaev, Dmitry, Nidever, DL, Smith, Verne V., Weinberg, DH, Garcia Perez, AE, Bovy, Jo, Nguyen, DC, Wilson, JC, Holtzman, J., Prieto, Carlos Allende, Nguyen, Duy C., Nidever, David L., Mészáros, Szabolcs, Perez, AEG, García Pérez, Ana E., Weinberg, David H., Bizyaev, D, Johnson, JA, Hayden, MR, Prieto, CA, Shane, Neville, Hayden, Michael R., Majewski, Steven R., O'Connell, RW, Pinsonneault, MH, Hearty, Fred R., Garcia-Hernandez, DA, Allende Prieto, C, Sobeck, Jennifer, Cunha, K, O’Connell, Robert W., Zasowski, G, García-Hernández, D. A., Eisenstein, Daniel J., Shetrone, M, Garcia Perez, Ana, Troup, N., Wilson, John C., Majewski, SR, Carrera, R, Pinsonneault, Marc, Carrera, Ricardo, Shane, N, Feuillet, D, Hearty, FR, Sobeck, J   +62 more
core   +1 more source