Results 61 to 70 of about 3,875,215 (299)

Efficacy and Safety Analysis of Roxarestat in Regulating Renal Anemia in Patients on Maintenance Hemodialysis

Therapeutic Apheresis and Dialysis, EarlyView.
ABSTRACT Objective To compare the efficacy and safety of roxarestat versus recombinant human erythropoietin (rhEPO) in the management of renal anemia in patients undergoing maintenance hemodialysis. Methods This was a prospective, open‐label, randomized controlled trial.
Lingling Chen, Junjie Zhu, Qiaonan Ge
wiley   +1 more source

Investigating the Drivers of Electron Temperature Variations in H ii Regions with Keck-KCWI and VLT-MUSE

The Astrophysical Journal
H ii region electron temperatures are a critical ingredient in metallicity determinations, and recent observations have revealed systematic variations in the temperatures measured using different ions.
Ryan J. Rickards Vaught, Karin M. Sandstrom, Francesco Belfiore, Kathryn Kreckel, J. Eduardo Méndez-Delgado, Eric Emsellem, Brent Groves, Guillermo A. Blanc, Daniel A. Dale, Oleg V. Egorov, Simon C. O. Glover, Kathryn Grasha, Ralf S. Klessen, Justus Neumann, Thomas G. Williams   +14 more
doaj   +1 more source

Prospects of observing a quasar HII region during the Epoch of Reionization with redshifted 21cm

, 2012
We present a study of the impact of a bright quasar on the redshifted 21cm signal during the Epoch of Reionization (EoR). Using three different cosmological radiative transfer simulations, we investigate if quasars are capable of substantially changing ...
Ali, Alvarez, Aubert, Baek, Bernardi, Bowman, Boyle, Bunker, Cano-Díaz, Chapman, Cristiani, Croom, Datta, Datta, Di Matteo, Dijkstra, Dijkstra, Emerson, Fan, Fan, Ferrarese, Friedrich, Friedrich, Garrelt Mellema, Geil, Geil, Ghosh, Ghosh, Giroux, González-Serrano, Graham, Haehnelt, Haiman, Harker, Heinzeller, Häring, Ilian T. Iliev, Iliev, Iliev, Iliev, Iliev, Jelić, Jiang, Kaiser, Kanan K. Datta, Kirkman, Komatsu, Komatsu, Kormendy, Kramer, Lawrence, Lidz, Liu, Loeb, Lu, Magorrian, Mao, Marconi, Martina M. Friedrich, Maselli, McQuinn, McQuinn, Mellema, Mellema, Merz, Morganson, Mortlock, Paciga, Paul R. Shapiro, Roche, Santos, Schmidt, Shankar, Shanks, Shapiro, Shapiro, Shen, Songaila, Srbinovsky, Steinhardt, Thomas, Thompson, Tundo, Vestergaard, Volonteri, Volonteri, Wang, Willott, Willott, Worseck, Zahn, Zaroubi   +91 more
core   +1 more source

Revealing the structure of land plant photosystem II: the journey from negative‐stain EM to cryo‐EM

FEBS Letters, EarlyView.
Advances in cryo‐EM have revealed the detailed structure of Photosystem II, a key protein complex driving photosynthesis. This review traces the journey from early low‐resolution images to high‐resolution models, highlighting how these discoveries deepen our understanding of light harvesting and energy conversion in plants.
Roman Kouřil
wiley   +1 more source

Spatially Resolved Galactic H ii Regions Observed by the LAMOST Medium-resolution Spectroscopic Survey of Nebulae (LAMOST MRS-N)

The Astronomical Journal
We present spatially resolved spectroscopic observations of 10 isolated Galactic H II regions using data from the LAMOST Medium-Resolution Spectroscopic Survey of Nebulae (LAMOST MRS-N).
Wei Zhang, Yunning Zhao, Lin Ma, Shiming Wen, Chaojian Wu, Juanjuan Ren, Jianjun Chen, Yuzhong Wu, Zhongrui Bai, Yonghui Hou, Yongheng Zhao, Hong Wu   +11 more
doaj   +1 more source

Observations of the Galaxy NGC 3077 in the Narrow-Band [S II] and Hα Filters

Open Astronomy, 2011
We present observations of the H I tidal arm near a dwarf galaxy NGC 3077 (member of the M81 galaxy group) in the narrow-band [S II] and Hα filters. Observations were carried out in 2011 March with the 2 m RCC telescope at the NAO Rozhen, Bulgaria.
Andjelić M., Stavrev K., Arbutina B., Ilić D., Urošević D.   +4 more
doaj   +1 more source

Imprints of galaxy evolution on H ii regions Memory of the past uncovered by the CALIFA survey

, 2014
H ii regions in galaxies are the sites of star formation and thus particular places to understand the build-up of stellar mass in the universe. The line ratios of this ionized gas are frequently used to characterize the ionization conditions.
Bekeraite, S., Bland-Hawthorn, J., Bomans, D., collaboration, The CALIFA, de Lorenzo-Cáceres, A., Delgado, R. González, Díaz, A., Ellis, S., Galbany, L., García-Benito, R., Iglesias-Páramo, J., Kehrig, C., Lopez-Sanchez, A. R., Marino, R. A., Mast, D., Mendez-Abreu, J., Mendoza, M. A., Miralles-Caballero, D., Mollá, M., Monreal-Ibero, A., Papaderos, P., Pasquali, A., Perez, E., Rosales-Ortega, F. F., Roth, M. M., Sanchez, S. F., Sánchez-Menguiano, L., van de Ven, G., Wisotzki, L., Ziegler, B.   +29 more
core   +1 more source

Mapping the evolution of mitochondrial complex I through structural variation

FEBS Letters, EarlyView.
Respiratory complex I (CI) is crucial for bioenergetic metabolism in many prokaryotes and eukaryotes. It is composed of a conserved set of core subunits and additional accessory subunits that vary depending on the organism. Here, we categorize CI subunits from available structures to map the evolution of CI across eukaryotes. Respiratory complex I (CI)
Dong‐Woo Shin, Tingting Chen, James A. Letts   +2 more
wiley   +1 more source

Resonant Scattering of the He i 1.0833 μm Triplet in H ii Regions: Emission Spectra

The Astrophysical Journal
Resonant scattering of He i 1.0833 μ m triplet photons by metastable He 2 ^3 S _1 is studied for optical depths characteristic of H ii regions. Regions with large He 2 ^3 S _1 column densities are predicted to have unusually broad multipeaked 1.0833 μ m ...
B. T. Draine
doaj   +1 more source

BOND: Bayesian Oxygen and Nitrogen abundance Determinations in giant H II regions using strong and semi-strong lines

, 2016
We present BOND, a Bayesian code to simultaneously derive oxygen and nitrogen abundances in giant H II regions. It compares observed emission lines to a grid of photoionization models without assuming any relation between O/H and N/O.
Asari, N. Vale, Fernandes, R. Cid, Morisset, C., Stasińska, G.   +3 more
core   +3 more sources