Results 121 to 130 of about 5,298,176 (299)

The COS-Holes Survey: Connecting Galaxy Black Hole Mass with the State of the CGM

The Astrophysical Journal
We present an analysis of Hubble Space Telescope COS/G160M observations of C IV in the inner circumgalactic medium (CGM) of a novel sample of eight z ∼ 0, L ≈ L ^⋆ galaxies, paired with UV-bright QSOs at impact parameters ( R _proj ) between 25 and 130 ...
Samantha L. Garza, Jessica K. Werk, Benjamin D. Oppenheimer, Kirill Tchernyshyov, N. Nicole Sanchez, Yakov Faerman, Kate H. R. Rubin, Misty C. Bentz, Jonathan J. Davies, Joseph N. Burchett, Robert A. Crain, J. Xavier Prochaska   +11 more
doaj   +1 more source

A spectroscopic study of the low redshift dwarf galaxy SDSS J134326.99+431118.7 to calculate star formation rate

Bibechana, 2021
We present a spectroscopic study of an interacting emission-line dwarf galaxy SDSS J134326.99+431118.7. We analyzed eight-strong emission lines of wavelength in a range of 3902.1Å to 6619.1Å.
Daya Nidhi Chhatkuli, Sanjaya Paudel, Binil Aryal   +2 more
doaj  

3D molecular line formation in dwarf carbon-enhanced metal-poor stars

, 2009
We present a detailed analysis of the carbon and nitrogen abundances of two dwarf carbon-enhanced metal-poor (CEMP) stars: SDSS J1349-0229 and SDSS J0912+0216. We also report the oxygen abundance of SDSS J1349-0229. These stars are metal-poor, with [Fe/H]
Behara, N. T., Bonifacio, P., Caffau, E., Hernandez, J. I. Gonzalez, Ludwig, H. -G., Sbordone, L.   +5 more
core  

Some empirical estimates of the H2 formation rate in photon-dominated regions

, 2003
We combine recent ISO observations of the vibrational ground state lines of H2 towards Photon-Dominated Regions (PDRs) with observations of vibrationally excited states made with ground-based telescopes in order to constrain the formation rate of H2 on ...
Abergel, Bakes, Biham, Black, Boulanger, Buch, Burke, Burton, C. M. Walmsley, Cazaux, Cesarsky, Draine, Draine, Draine, Duley, Désert, E. Habart, F. Boulanger, Field, Fromherz, Fuente, G. Pineau des Forêts, , Gould, Gry, Guhathakurta, Habart, Habart, Herrmann, Hogerheijde, Hollenbach, Hollenbach, Hollenbach, Hollenbach, Jansen, Jansen, Jura, Katz, Kessler, L. Verstraete, Le Bourlot, Leitch-Devlin, Li, Luhman, Marconi, Martin, Meixner, Meyer, Minchin, Moos, Motte, Parneix, Pirronello, Pirronello, Puget, Rachford, Rachford, Sandford, Sellgren, Shull, Simon, Snow, Sonnentrucker, Störzer, Takahashi, Tielens, Tielens, Timmermann, Tumlinson, van der Werf, van Dishoeck, Verstraete, Verstraete, Walmsley, Weingartner, Wyrowski, Wyrowski, Wyrowski   +76 more
core   +1 more source

Structural insights into an engineered feruloyl esterase with improved MHET degrading properties

FEBS Letters, EarlyView.
A feruloyl esterase was engineered to mimic key features of MHETase, enhancing the degradation of PET oligomers. Structural and computational analysis reveal how a point mutation stabilizes the active site and reshapes the binding cleft, expading substrate scope.
Panagiota Karampa, Konstantinos Makryniotis, Theofani‐Iosifina Sousani, Evangelos Topakas, Vangelis Daskalakis, Maria Dimarogona   +5 more
wiley   +1 more source

Gut microbiome and aging—A dynamic interplay of microbes, metabolites, and the immune system

FEBS Letters, EarlyView.
Age‐dependent shifts in microbial communities engender shifts in microbial metabolite profiles. These in turn drive shifts in barrier surface permeability of the gut and brain and induce immune activation. When paired with preexisting age‐related chronic inflammation this increases the risk of neuroinflammation and neurodegenerative diseases.
Aaron Mehl, Eran Blacher
wiley   +1 more source

Event-triggered robust formation control of multi quadrotors for transmission line inspection

Journal of Mechatronics, Electrical Power, and Vehicular Technology
This paper proposes an event-triggered formation control scheme to manage the operation of multiple quadrotors in performing the inspection of a power transmission line.
Tua Agustinus Tamba, Benedictus Christo Geroda Cinun, Yul Yunazwin Nazaruddin, Muhammad Zakiyullah Romdlony, Bin Hu   +4 more
doaj   +1 more source

In-Situ Electron Channeling Contrast Imaging under Tensile Loading: Residual Stress, Dislocation Motion, and Slip Line Formation. [PDF]

Sci Rep, 2020
Nakafuji K, Koyama M, Tsuzaki K.
europepmc   +1 more source

A methionine‐lined active site governs carbocation stabilization and product specificity in a bacterial terpene synthase

FEBS Letters, EarlyView.
This study reveals a unique active site enriched in methionine residues and demonstrates that these residues play a critical role by stabilizing carbocation intermediates through novel sulfur–cation interactions. Structure‐guided mutagenesis further revealed variants with significantly altered product profiles, enhancing pseudopterosin formation. These
Marion Ringel, Carl P. O. Helmer, Shani Zev, Ronja Driller, Emily Buhr, Markus Reinbold, Renana Schwartz, Gabriel Foley, Mikael Boden, Daniel Garbe, Gerhard Schenk, Dan Thomas Major, Bernhard Loll, Thomas Brück   +13 more
wiley   +1 more source

Spatially Resolved Comparison of SFRs from UV and Hα in GASP Gas-stripped Galaxies

The Astrophysical Journal
Star formation rates (SFRs) in galaxies offer a view of various physical processes across them, and are measured using various tracers, such as H α and ultraviolet (UV).
Neven Tomičić, Ariel Werle, Benedetta Vulcani, Alessandro Ignesti, Alessia Moretti, Anna Wolter, Koshy George, Bianca M. Poggianti, Marco Gullieuszik   +8 more
doaj   +1 more source