Chaos Synchronization with Dynamic Filters: Two Way is Better Than One Way

Two chaotic systems which interact by mutually exchanging a signal built from their delayed internal variables, can synchronize. A third unit may be able to record and to manipulate the exchanged signal. Can the third unit synchronize to the common chaotic trajectory, as well? If all parameters of the system are public, a proof is given that the recording system can synchronize as well. However, if the two interacting systems use private commutative filters to generate the exchanged signal, a driven system cannot synchronize. It is shown that with dynamic private filters the chaotic trajectory even cannot be calculated. Hence two way (interaction) is more than one way (drive). The implication of this general result to secret communication with chaos synchronization is discussed

Developing and Testing a High-Fidelity Simulation Scenario for an Uncommon Life-Threatening Disease: Severe Malaria

Background. Severe malaria is prevalent globally, yet it is an uncommon disease posing a challenge to education in nonendemic countries. High-fidelity simulation (sim) may be well suited to teaching its management. Objective. To develop and evaluate a teaching tool for severe malaria, using sim. Methods. A severe malaria sim scenario was developed based on 5 learning objectives. Sim sessions, conducted at an academic center, utilized METI ECS mannequin. After sim, participants received standardized debriefing and completed a test assessing learning and a survey assessing views on sim efficacy. Results. 29 participants included 3rd year medical students (65%), 3rd year EM residents (28%), and EM nurses (7%). Participants scored average 85% on questions related to learning objectives. 93% felt that sim was effective or very effective in teaching severe malaria, and 83% rated it most effective. All respondents felt that sim increased their knowledge on malaria. Conclusion. Sim is an effective tool for teaching severe malaria in and may be superior to other modalities

Exílio no Brasil de escritores e intelectuais de fala alemã e a literatura do exílio de Ulrich Becher e Hugo Simon

This paper presents some of the major aspects of the history of German exile after 1933 and the history of the exile of German-speaking writers and intellectuals in Brazil. The second part of the title is focused on the works of exile written by Ulrich Becher and Hugo Simon in Brazil.Der vorliegende Aufsatz stellt einige der wichtigsten Aspekte der Geschichte des deutschen Exils nach 1933 und der Geschichte des Exils der deutschsprachigen Schriftsteller und Intellektuellen in Brasilien dar. Der zweite Abschnitt der Arbeit konzentriert sich auf die in Brasilien geschriebenen Exilwerke von Ulrich Becher und Hugo Simon

Herbert Moritz Caro : exílio e vida no Brasil

This article offers a general view on the historical circumstances regarding the exile of Herbert Caro in Brazil. It also informs on his intellectual and professional background, based on official documents and research material as well as on an interview that the author realized with Herbert Caro in 1988

ZAGA - #1, 2021

ZAGA is the little sibling of SAGA, Augustana\u27s annual literature and art magazine. ZAGA produces smaller installments of art and literature from Augie\u27s student body in zine format.https://digitalcommons.augustana.edu/zaga/1000/thumbnail.jp

Interview of Richard Kestler, F.S.C., M.A.

Brother Richard Kestler, FSC. was born John Kestler on January 8, 1942 to John and Alice Kestler. He grew up in the Oxford Circle section of Philadelphia, Pennsylvania. Brother Richard attended elementary school at his parish of St. Martin of Tours and went on to La Salle College High School, graduating in 1960. By this time, he made the decision to join the Christian Brothers and began this process for about a year before attending La Salle College. He graduated in 1965 with a Bachelor’s in Mathematics and gained a Master’s in Theology soon after. Brother Richard also has Master’s degrees in Math from Fordham University and Education from Villanova University. He has been assigned to many high schools in the Philadelphia area as teachers and administrators including West Catholic High School, La Salle College High School, St. Gabriel’s Hall, and Archbishop Carroll. As a Christian Brother, Brother Richard has helped the growth and success of the Philadelphia community and major surrounding schools. In 2018, he was awarded a member of the Papal Household by the Pope himself for the education of students and his assistance and selflessness in the Philadelphia community. He is in active retirement today and lives in Anselm Hall at La Salle University

Sublattice synchronization of chaotic networks with delayed couplings

Synchronization of chaotic units coupled by their time delayed variables are investigated analytically. A new type of cooperative behavior is found: sublattice synchronization. Although the units of one sublattice are not directly coupled to each other, they completely synchronize without time delay. The chaotic trajectories of different sublattices are only weakly correlated but not related by generalized synchronization. Nevertheless, the trajectory of one sublattice is predictable from the complete trajectory of the other one. The spectra of Lyapunov exponents are calculated analytically in the limit of infinite delay times, and phase diagrams are derived for different topologies