The data on arrival directions of ultra-high energy cosmic rays (UHECRs) detected with the Yakutsk array are analyzed. The work is induced by the recent claim of the Pierre Auger collaboration for the significant correlation found between UHECRs and positions of nearby Active Galactic Nuclei (AGN) on the celestial sphere; and no correlation the HiRes collaboration stands for. Conflicting data o...

The Pierre Auger Observatory, recently completed, has been operational since 2004. As a hybrid experiment, it allows for a wide range of measurements of UHECR-induced extensive air showers (EAS), including measurements of the EAS particle content on ground which is sensitive to high-energy hadronic interactions. We present the results of several independent measurements of the EAS muon content ...

Metaheuristic algorithms, especially those based on swarm intelligence (SI), form an important part of contemporary global optimization algorithms (Kennedy and Ebarhart, 1995; Yang, 2008; Auger and Teytaud, 2010; Auger and Doerr, 2010; Blum and Roli, 2003; Neumann and Witt 2010; Parpinelli and Lopes, 2011). Good examples are particle swarm optimization (PSO) (Kennedy and Eberhart, 1995) and fir...

We present the results of simulations of the ultra-high energy cosmic ray (UHECR) propagation in the Galactic magnetic field (GMF). Different assumptions on the large-scale GMF structure and/or primary particle lead to distinctly different deflection patterns of the highest energy cosmic rays (CR). The GMF modifies the exposure of an UHECR experiment to the extragalactic sky. We estimated these...

The universal response of a sudden created core hole, predicted to occur on an attosecond (10(-18)  s) time scale, lacks an experimental demonstration. With a two-dimensional coincidence spectrometer, we demonstrate an extensive energy sharing between the Ag 4p photoelectron and the N2,3VV Auger electron exceeding 10 eV. This energy width provides access to the time scale of the emission proces...

I summarize the discovery potential for physics beyond the electroweak scale at the Pierre Auger Observatory. This observatory is designed to study ultra-high energy cosmic rays with unprecedented precision, with the primary goal of shedding light on their composition and origins. In addition, since the center-of-mass energies of Auger events are well beyond those reached at terrestrial collide...

In the briquetting process of various finely dispersed materials using auger pressing method, an important issue is extending service life and repairing worn-out elements, such as auger, die, lining. This study provides a literature review industrial experience in parts presses. It formulates main approaches for restoring abrasive surfaces presents results experimental studies aimed at prolongi...

Zusammenfassung Der Auger‐Effekt ist ein fundamentaler Prozess, bei dem Energie in Materie, etwa nach Aufnahme kurzwelliger Strahlung, durch Abgabe von Elektronen typischerweise innerhalb weniger Femtosekunden umverteilt wird. Experimente an Röntgenlasern machen es nun möglich, diesen bedeutsamen Effekt bisher unerforschten Zuständen der Materie und „Echtzeit“ zu untersuchen. Hierdurch lässt si...

chronization therapy. Cardiol Res Pract 2010;22:568918. 32. Porapakkham P, Porapakkham P, Zimmet H, Billah B, Krum H. B-type natriuretic peptide-guided heart failure therapy: a meta-analysis. Arch Intern Med 2010;170: 507–14. 33. Felker GM, Thompson RE, Hare JM, Hruban RH, Clemetson DE, Howard DL et al. Underlying causes and long-term survival in patients with initially unexplained cardiomyopat...

Abstract Background Atherosclerosis is a slow, progressive disease that may begin as early childhood. Although the exact cause unknown, atherosclerosis start with damage or injury to inner layer of an artery. main stroke and myocardial infarction. In atherosclerosis, local inflammation associated macrophage activity can lead foam cell-rich lesion formation, making important therapeutic target i...