We consider two generalizations of the notion of a Soules basis matrix. A pair of nonsingular n × n matrices (P, Q) is called a double Soules pair if the first columns of P and Q are positive, PQT = I, and PΛQT is nonnegative for every n × n nonnegative diagonal matrix Λ with nonincerasing diagonal elements. In a paper by Chen, Han, and Neumann an algorithm for generating such pairs was given. ...

The paper presents the results of testing seed germination and initial growth seedlings four sunflower hybrids: 2950, 2951, 3007, 3009) at different temperatures: 20° C, 25°C, 30°C. In all hybrids tested, highest seeds was achieved a temperature 30° C; however, in two tested (2950 3007) no significant difference (p ≥ 0.05) found between C 25° C. Correlation interdependence stem positive statist...

Society for Cardiovascular Magnetic Resonance. Ann Thorac Surg. 2012;93:1340--95. 5. Webb JG, Altwegg L, Boone RH, et al. Transcatheter aortic valve implantation. Impact on clinical and valve related outcomes. Circulation. 2009;119:3009--16. 6. Rodés-Cabau J, Dumont E, DeLaRochellière R, et al. Feasibility and initial results of percutaneous aortic valve implantation including selection of the ...

The coffee oil has a promising potential to be used in food industry, but an efficient use, especially in products that required high-temperature heating, depends on its chemical composition and the changes induced by processing. Since there is little information on this topic, the aim of our study was to investigate the crude green and roasted coffee oil (GCO, RCO) and heated (HGCO, HRCO) for ...

A transient radio source in the direction of the Galactic Center, GCRT J1745-3009, exhibited 5 peculiar consecutive outbursts at 0.33 GHz with a period of 77.13 minutes and a duration of ∼ 10 minutes for each outburst. It has been claimed to be the prototype of a hitherto unknown class of transient radio sources. We interpret it as a transient white dwarf pulsar with a period of 77.13 minutes. ...

The study of punctuation has traditionally been overlooked by some scholars for being considered haphazard and unpredictable. In medieval manuscripts, every scribe was free to use their own repertory symbols. However, the establishment printing press along with proliferation professional scriveners resulted in a process standardization system such way that end 16th century symbols fully develop...