A modified Carlson-Langer model for earthquakes is proposed, which includes nonlinear viscoelasticity. Several aftershocks are generated after the main shock owing to the damping of the additional viscoelastic force. Both the Gutenberg-Richter law and Omori's law are reproduced in a numerical simulation of the modified Carlson-Langer model on a critical percolation cluster of a square lattice.

9 Shriners Hospitals Pediatric Research Center, and Department of Anatomy and Cell 10 Biology, Temple University Lewis Katz School of Medicine, Philadelphia, Pennsylvania, USA. 11 Department of Anatomy, Kitasato University School of Medicine, Sagamihara, Japan. 12 13 Institute for Molecular Medicine, University Medical Center of the Johannes Gutenberg 14 University of Mainz, 55131 Mainz, German...

A. Mayr1; H. Binder2; O. Gefeller1; M. Schmid1,3 1Institut für Medizininformatik, Biometrie und Epidemiologie, Friedrich-Alexander-Universität Erlangen-Nürnberg, Germany; 2Institut für Medizinische Biometrie, Epidemiologie und Informatik, Johannes Gutenberg-Universität Mainz, Germany; 3Institut für Medizinische Biometrie, Informatik und Epidemiologie, Rheinische Friedrich-Wilhelms-Universität B...

Gutenberg invented movable type. It took another 40 years for an entrepreneur named Aldus to assemble what created book publishing as we know it. Marconi invented radio exactly 100 years ago. It took another 25 years for entrepreneurs in Pittsburgh and New York to create broadcasting. It was through broadcasting that radio reshaped our lives. Scott Cook, Chairman, Intuit Forbes ASAP, October 9,...

The construction of effective Lagrangians commonly involves the application of the ‘classical equation of motion’ to eliminate redundant structures and thus generate the minimal number of independent terms. We investigate this procedure in the framework of chiral perturbation theory. The use of the ’classical equation of motion’ is interpreted in terms of field transformations. Such an interpre...

We study the dynamics of public media attention by monitoring the content of online blogs. Social and media events can be traced by the propagation of word frequencies of related keywords. Media events are classified as exogenous – where blogging activity is triggered by an external news item – or endogenous where word frequencies build up within a blogging community without external influences...

We prove that the set of DES permutations (encryption and decryption for each DES key) is not closed under functional composition. This implies that, in general, multiple DES-encryption is not equivalent to single DES-encryption, and that DES is not susceptible to a particular known-plaintext attack which requires, on average, 228 steps. We also show that the size of the subgroup generated by t...

As noted below, most researchers agree that young babies should sleep in the same room where their parents sleep. The point of disagreement is whether parents should be advised against sharing their beds. Some researchers think that the safest arrangement involves cosleeping without sharing the same bed—-i.e., placing a young infant in a crib or “side car” that is within arm’s reach of his parent.

Az 1953-ban útjára indult, immáron hetvenéves Belügyi Szemle tudományos folyóirat jubileumi „70 év, 70 gondolat” című kiadványában megjelent tanulmány olvasható a felkért szerzőktől.

Birinci kuşak internet olarak anılan Web 1.0’ın tek yönlü iletişim ortamı kısa sürede yerini 2.0’ın etkileşimli dairesel iletişimine bırakmıştır. Araştırmacıların birçoğu 2.0 üzerinde geliştirilen Semantik webin internetin yeni kuşağı olacağını ileri sürmüşlerdir. Ancak 2008 yılında, paranın aracısız transferi arayışının sonucu ortaya çıkan blokzinciri ağı, tüm geçmiş kuşaklarını unutturacak ge...