Inhibition of mammalian target of rapamycin, mTOR, extends lifespan and reduces age-related disease. It is not known what role mTOR plays in the arterial aging phenotype or if mTOR inhibition by dietary rapamycin ameliorates age-related arterial dysfunction. To explore this, young (3.8 ± 0.6 months) and old (30.3 ± 0.2 months) male B6D2F1 mice were fed a rapamycin supplemented or control diet f...

The Dirac spin liquid ground state of the spin 1/2 Heisenberg kagome antiferromagnet has potential instabilities. This has been suggested as the reason why it does not emerge as the ground state in large-scale numerical calculations. However, previous attempts to observe these instabilities have failed. We report on the discovery of a projected BCS state with lower energy than the projected Dir...

Using structure-directing agents, pore space partitions of a Zn-phosphonocarboxylate framework have been achieved. Selective adsorption of CO(2) over N(2) has been greatly improved from ca. 9 : 1 to 94 : 1.

The Palatini gravitational action is enlarged by an arbitrary function $f(X)$ of the determinants Ricci tensor and metric, $X=|\textbf{det}.R|/|\textbf{det}.g|$. resulting Ricci-determinant theory exhibits novel deviations from general relativity. We study a particular realization where extension characterized square-root Ricci-determinant, $f(X)=\lambda_\text{Edd}\sqrt{X}$, which corresponds t...

Ab-initio electronic structure methods are used to explore potential energy profiles pertinent to the fragmentations of gas-phase radicals thought to be formed in the new negative-ion mode EDD mass spectroscopic studies of peptides. Barriers to fragmentation as well as the associated overall energy differences are computed for the observed Calpha-C backbone bond cleavage as well as for side-cha...

Walls and frames have different deflection lines and, depending on the seismic mass they support, may often possess different natural periods. In many cases, wall–frame structures present an advantageous behavior. In these structures, the walls and the frames are rigidly connected. Nevertheless, if the walls and the frames were not rigidly connected, an opportunity for an efficient passive cont...

We present a comprehensive study of GRS 1915+105 in wide energy band ($0.5-60$ keV) using AstroSat observations during the period $2016-2019$. The MAXI X-ray lightcurve source shows rise and decay profiles similar to canonical outbursting black holes. However, does not follow exemplary 'q'-diagram Hardness-Intensity Diagram (HID). Model independent analysis lightcurves suggests that displays va...

Book review on Tomáš Weissar – Klára Modlíková Jana Nechutová (edd.), Gnóthi seauton. Sto let klasických studií v Brně osobních vzpomínkách i úřední korespondenci. Masarykova univerzita, Brno 2020, 308 s., ISBN 978-80-210-9254-9.

MagSaki software was developed for the magnetic analysis of dinuclear high-spin cobalt(II) complexes. This software performs magnetic analysis to determine magnetic parameters using several types of theoretical calculations, such as the following: (1) a mononuclear complex in an isotropic octahedral field, (2) a mononuclear complex in an axially distorted octahedral field, (3) a dinuclear compl...

Abstract We constrain the intrinsic Eddington ratio ( ? Edd ) distribution function for local active galactic nuclei (AGN) in bins of low and high obscuration [ log stretchy="false">( <mml...