Results 81 to 90 of about 399,430 (333)

High-Resolution Spectroscopy of Cool Carbon-Rich and Metal-Poor Star HD 209621

Open Astronomy, 2012
Element abundances for HD 209621 obtained earlier display significant discrepancies, especially in the case of CNO and neutron-capture elements. Therefore we performed a detailed analysis of chemical composition of this star using a new high-resolution ...
Matrozis E., Začs L., Barzdis A.
doaj   +1 more source

Upper atmosphere

Eos, Transactions American Geophysical Union, 1991
Theoretical understanding of the upper atmosphere and the complex physical processes responsible for its composition, dynamics, and thermal behavior has improved to the point where reasonable three‐dimensional, time‐dependent models of the atmosphere above about 100 km exist.
Siscoe, George L., Killeen, Timothy L.
openaire   +2 more sources

A synthetic benzoxazine dimer derivative targets c‐Myc to inhibit colorectal cancer progression

Molecular Oncology, EarlyView.
Benzoxazine dimer derivatives bind to the bHLH‐LZ region of c‐Myc, disrupting c‐Myc/MAX complexes, which are evaluated from SAR analysis. This increases ubiquitination and reduces cellular c‐Myc. Impairing DNA repair mechanisms is shown through proteomic analysis.
Nicharat Sriratanasak, Bodee Nutho, Worawat Wattanathana, Narumon Phaonakrop, Bunnatut Panasawatwong, Katharina Erlenbach‐Wuensch, Sittiruk Roytrakul, Regine Schneider‐Stock, Pithi Chanvorachote   +8 more
wiley   +1 more source

Pathicity: Experiencing the World in an Atmospheric Way

Open Philosophy, 2019
Is there really an atmospheric turn? The concept of “atmosphere” as a qualitative-emotional prius of sensory experience seems today to have encouraged the convergence of many interdisciplinary studies focused on the qualitative aspects of our ...
Griffero Tonino
doaj   +1 more source

Adaptaquin is selectively toxic to glioma stem cells through disruption of iron and cholesterol metabolism

Molecular Oncology, EarlyView.
Adaptaquin selectively kills glioma stem cells while sparing differentiated brain cells. Transcriptomic and proteomic analyses show Adaptaquin disrupts iron and cholesterol homeostasis, with iron chelation amplifying cytotoxicity via cholesterol depletion, mitochondrial dysfunction, and elevated reactive oxygen species.
Adrien M. Vaquié, Davod R. Shah, Eliane E. S. Brechbühl, Michael McNicholas, Zhaoyang Xu, John H. Stockley, Laura Morcom, Diana Gold Diaz, Gemma C. Girdler, Rachel V. Seear, Gabriel Balmus, Rajiv R. Ratan, Harry Bulstrode, James A. Nathan, Manav Pathania, Kevin M. Brindle, David H. Rowitch   +16 more
wiley   +1 more source

The Role of Atmospheric Composition in Defining the Habitable Zone Limits and Supporting E. coli Growth

Life
Studying exoplanet atmospheres is essential for assessing their potential to host liquid water and their capacity to support life (their habitability).
Asena Kuzucan, Emeline Bolmont, Guillaume Chaverot, Jaqueline Quirino Ferreira, Bastiaan Willem Ibelings, Siddharth Bhatnagar, Daniel Frank McGinnis   +6 more
doaj   +1 more source

The stability of late-type stars close to the Eddington limit [PDF]

, 1997
Super-Eddington luminosities in hydrostatic model atmospheres manifest themselves by the presence of gas pressure inversions. Such inversions are not an artifact of the assumption of hydrostatic equilibrium but can also be present in hydrodynamical model
Asplund, Martin
core   +3 more sources

Barium abundance in red giants of NGC 6752. Non-local thermodynamic equilibrium and three-dimensional effects

, 2012
(Abridged) Aims: We study the effects related to departures from non-local thermodynamic equilibrium (NLTE) and homogeneity in the atmospheres of red giant stars in Galactic globular cluster NGC 6752, to assess their influence on the formation of Ba II ...
A. Kučinskas, Andrievsky, Asplund, Behara, Bonifacio, Caffau, Caffau, Carretta, Carretta, Carretta, Carretta, Castelli, Cohen, Collet, Collet, Decressin, D’Ercole, E. Caffau, Freytag, González Hernández, Gratton, Gratton, H.-G. Ludwig, Harris, James, Korotin, Korotin, Kraft, Kupka, Kurucz, Ludwig, Mashonkina, Mashonkina, Mashonkina, Mishenina, Norris, Norris, Otsuki, P. Bonifacio, Pasquini, Piotto, Piotto, Ramírez, Roederer, S. A. Korotin, S. M. Andrievsky, Sbordone, Sbordone, Shen, Short, Sneden, Sneden, Sneden, Sobeck, Suntzeff, T. V. Mishenina, V. Dobrovolskas, Yong   +57 more
core   +2 more sources

Aggressive prostate cancer is associated with pericyte dysfunction

Molecular Oncology, EarlyView.
Tumor‐produced TGF‐β drives pericyte dysfunction in prostate cancer. This dysfunction is characterized by downregulation of some canonical pericyte markers (i.e., DES, CSPG4, and ACTA2) while maintaining the expression of others (i.e., PDGFRB, NOTCH3, and RGS5).
Anabel Martinez‐Romero, Ane Martinez‐Larrinaga, Joaquim Grego‐Bessa, Saioa Garcia‐Longarte, Hielke van Splunder, Ianire Astobiza, Amaia Ercilla, Laura Bozal‐Basterra, Isabel Mendizabal, Pilar Villacampa, Arkaitz Carracedo, Mariona Graupera   +11 more
wiley   +1 more source

„The suspicion that is in the air“: Can latent intertextuality be sensed? [PDF]

Slovenska Literatura, 2012
The study is concerned with the phenomenon or notion of latency and its potential use in the field of literary science, especially in the field of intertextuality. She proceeds in several steps.
Zornitza Kazalarska
doaj