Results 81 to 90 of about 7,369,874 (310)

Eddington-limited accretion and the black hole mass function at redshift 6

, 2010
We present discovery observations of a quasar in the Canada-France High-z Quasar Survey (CFHQS) at redshift z=6.44. We also use near-IR spectroscopy of nine CFHQS quasars at z~6 to determine black hole masses.
Alain Omont, Alexander, Antonucci, Bentz, Borys, Bouwens, Carilli, Cen, Chris J. Willott, Céline Reylé, David Crampton, David Schade, Denney, Di Matteo, Diamond-Stanic, Doris Arzoumanian, Fan, Fan, Fan, Ferrarese, Fine, Gebhardt, Granato, Gultekin, Haring, Hopkins, Hopkins, Hopkins, Hopkins, Jacqueline Bergeron, Jiang, Jiang, Jiang, Jiang, John B. Hutchings, Kaspi, Kawakatu, Kollmeier, Komatsu, Kurk, Kurk, Lamastra, Lauer, Lawrence, Li, Loic Albert, Magorrian, Marconi, Mathur, Merloni, Netzer, Ouchi, Peng, Peterson, Philippe Delorme, Press, Reddy, Richards, Riechers, Robertson, Scheuer, Shankar, Shankar, Shankar, Shapiro, Shen, Shen, Silk, Small, Stark, Steidel, Steinhardt, Tundo, Ueda, Vestergaard, Vestergaard, Volonteri, Volonteri, Walter, Wandel, Wang, Wang, Willott, Willott, Willott, Willott, Willott, Woo, Yoo, Yu   +89 more
core   +3 more sources

Construction of nearly hyperbolic distance on punctured spheres

Bulletin of Mathematical Sciences, 2017
We define a distance function on the bordered punctured disk ...
Toshiyuki Sugawa, Tanran Zhang
doaj   +1 more source

Evolutionary interplay between viruses and R‐loops

FEBS Letters, EarlyView.
Viruses interact with specialized nucleic acid structures called R‐loops to influence host transcription, epigenetic states, latency, and immune evasion. This Perspective examines the roles of R‐loops in viral replication, integration, and silencing, and how viruses co‐opt or avoid these structures.
Zsolt Karányi, Zita Képes, Zoltán Szabó, Eszter Csoma, Lóránt Székvölgyi   +4 more
wiley   +1 more source

One-dimensional models for atoms in strong magnetic fields, II: Anti-Symmetry in the Landau Levels

, 2003
Electrons in strong magnetic fields can be described by one-dimensional models in which the Coulomb potential and interactions are replaced by regularizations associated with the lowest Landau band. For a large class of models of these type, we show that
Brummelhuis, Raymond, Ruskai, Mary Beth
core   +2 more sources

Univalent and Starlike Properties for Generalized Struve Function

International Journal of Mathematics and Mathematical Sciences, 2016
We derive conditions on the parameters p, b, and c so that the function zwp,b,c(z), where wp,b,c(z) is the normalized form of generalized Struve function, belongs to the class S1⁎(α). Also, some sufficient conditions for the function zwp,b,c(z), to be in
Aaisha Farzana Habibullah, Adolf Stephen Bhaskaran, Jeyaraman Muthusamy Palani   +2 more
doaj   +1 more source

WEIGHTED REPRESENTATION FUNCTIONS ON $\mathbb{Z}_m$ [PDF]

Taiwanese Journal of Mathematics, 2013
Let $m$, $k_1$, and $k_2$ be three integers with $m\ge 2$. For any set $A\subseteq \mathbb{Z}_m$ and $n\in \mathbb{Z}_m$, let $\hat{r}_{k_1,k_2}(A,n)$ denote the number of solutions of the equation $n=k_1a_1+k_2a_2$ with $a_1,a_2\in A$. In this paper, using exponential sums, we characterize all $m$, $k_1$, $k_2$, and $A$ for which $\hat{r}_{k_1,k_2}(A ...
Yang, Quan-Hui, Chen, Yong-Gao
openaire   +4 more sources

Circulating histones as clinical biomarkers in critically ill conditions

FEBS Letters, EarlyView.
Circulating histones are emerging as promising biomarkers in critical illness due to their diagnostic, prognostic, and therapeutic potential. Detection methods such as ELISA and mass spectrometry provide reliable approaches for quantifying histone levels in plasma samples.
José Luis García‐Gimenez, Juan Carlos Ruiz‐Rodríguez, Ricard Ferrer, Raquel Durá, Antonio Artigas, Iván Bajaña, David Bolado López de Andujar, Irene Cánovas‐Cervera, Adrián Ceccato, Luis Chiscano‐Camón, Elena Climent‐Martinez, Georgia García Fernández, Gemma Goma, Verónica Monforte, Beatriz Quevedo‐Sánchez, Adolf Ruiz‐Sanmartín, Antonio Sierra‐Rivera, Nieves Carbonell Monleón   +17 more
wiley   +1 more source

Evolution of the Luminosity Function and Colors of Galaxies in a Lambda-CDM Universe

, 2001
The luminosity function of galaxies is derived from a cosmological hydrodynamic simulation of a Lambda cold dark matter (CDM) universe with the aid of a stellar population synthesis model. At z=0, the resulting B band luminosity function has a flat faint
Arnett, Balbi, Baugh, Blanton, Blumenthal, Bruzual, Bryan, Buta, Cardelli, Cen, Cen, Cen, Cole, Cross, Davis, Davis, de Vaucouleurs, Dekel, Efstathiou, Efstathiou, Eisenstein, Ellis, Fioc, Fried, Fukugita, Fukugita, Gould, Hu, J.P. Ostriker, K. Nagamine, Katz, Kauffmann, Kravtsov, Lange, Lilly, Lin, M. Fukugita, Nagamine, Ostriker, Perlmutter, R. Cen, Rees, Rees, Rieke, Riess, Salpeter, Silk, Sneden, Somerville, Steidel, Steidel, Turner, White   +52 more
core   +1 more source

Iteration of the rational function z-1/z and a Hausdorff moment sequence

Expositiones Mathematicae, 2008
In a previous paper we considered a positive function f, uniquely determined for s>0 by the requirements f(1)=1, log(1/f) is convex and the functional equation f(s)=psi(f(s+1)) with psi(s)=s-1/s. We prove that the meromorphic extension of f to the whole complex plane is given by the formula f(z)=lim_{n\to\infty}psi^{\circ n}(lambda_n(lambda_{n+1 ...
Berg, Christian, Durán, Antonio J.
openaire   +3 more sources

Mechanisms and kinetic assays of aminoacyl‐tRNA synthetases

FEBS Letters, EarlyView.
Accurate protein synthesis is crucial for life. The key players are aminoacyl‐tRNA synthetases (AARSs), which read the genetic code by pairing cognate amino acids and tRNAs. AARSs establish high amino acid selectivity by employing physicochemical limits in molecular recognition.
Igor Zivkovic, Morana Dulic, Ita Gruic‐Sovulj   +2 more
wiley   +1 more source