Searching for chaos on low frequency

A new method for detecting low dimensional chaos in small sample sets is presented. The method is applied to financial data on low frequency (annual and monthly) for which few observations are available.low dimensional chaos

General properties and analytical approximations of photorefractive solitons

We investigate general properties of spatial 1-dimensional bright photorefractive solitons and suggest various analytical approximations for the soliton profile and the half width, both depending on an intensity parameter r

Responding to the Workplace Narcissist

Indiana University-Purdue University Indianapolis (IUPUI)The presence of narcissism in the workplace is well established. Some have even gone so far as to extol the virtues of the narcissistic personality and the effect that it has on the leadership roles in organizations. Still, research suggests that there are more narcissists than there are leadership positions that might be filled. It is well established that the presence of those with strong narcissistic tendencies at the lower levels of organizations are disruptive to the productivity and the morale of the organization as a whole. This paper found that five coping method categories existed: non-responding, quitting one’s job, befriending the narcissist, confronting the narcissist, and going to management. Contrary to existing literature, only quitting one’s job or going to management were perceived by respondents as effective methods

The classification and curvature of biquotients of the form Sp(3)//Sp(1)2Sp(3)//Sp(1)^2

We show there are precisely 15 inhomogeneous biquotients of the form $Sp(3)// Sp(1)^2$ and show that at least 8 of them admit metrics of quasi-positive curvature.Comment: Final version. To appear in Ann. Glob. Anal. and Ge

Complete nucleotide sequence and structural organization of pPB1, a small Lactobacillus plantarum cryptic plasmid that originated by modular exchange

A small cryptic plasmid designated pPB1 was isolated from Lactobacillus plantarum BIFI-38 and its complete 2899 bp nucleotide sequence was determined. Sequence analysis revealed four putative open reading frames. Based on sequence analysis two modules could be identified. First, the replication module consisted of a sequence coding for a replication protein (RepB) and its corresponding target site, and two putative repressor proteins (RepA and RepC). Sequence analysis indicated the possible synthesis of an antisense RNA that might regulate RepB production. A putative laggingstrand initiation site was also found, suggesting that pPB1 replicates via a rolling circle mechanism. The second module of pPB1 consisted of a sequence coding for a putative mobilization protein and its corresponding oriT site. Since the nucleotide sequence of the replication module showed 94.5% identity to the similar region on the Leuconostoc lactis plasmid pCI411, and the nucleotide sequence of the mobilization module had 97.5% identity to L. plantarum plasmid pLB4, it is concluded that pPB1 originated by modular exchange between two such plasmids by homologous recombination. Putative recombination sites where crossover might have taken place were also identifiedThis work was supported by Grant 07G/0035/2003 from the Comunidad de Madrid and RM03-002 from the Instituto Nacional de Investigación y Tecnologı´a Agraria y Alimentaria (INIA). We thank R. Gonza´lez and A.V. Carrascosa for their advice and critical reading of the manuscript. B. de las Rivas was a recipient of a postdoctoral fellowship and A. Marcobal of a predoctoral fellowship both from the Comunidad de Madrid.Peer reviewe

A Hierarchical Scheduling Model for Dynamic Soft-Realtime System

We present a new hierarchical approximation and scheduling approach for applications and tasks with multiple modes on a single processor. Our model allows for a temporal and spatial distribution of the feasibility problem for a variable set of tasks with non-deterministic and fluctuating costs at runtime. In case of overloads an optimal degradation strategy selects one of several application modes or even temporarily deactivates applications. Hence, transient and permanent bottlenecks can be overcome with an optimal system quality, which is dynamically decided. This paper gives the first comprehensive and complete overview of all aspects of our research, including a novel CBS concept to confine entire applications, an evaluation of our system by using a video-on-demand application, an outline for adding further resource dimension, and aspects of our protoype implementation based on RTSJ

Обоснование актуальности использования в трансмиссии геохода эксцентриково-циклоидального зацепления

Рассматривается состояние вопроса по темпам формирования подземного пространства в России. Проводится анализ недостатков имеющегося проходческого оборудования (щиты, комбайны). Отмечается, что перспективным способом проведения горных выработок является геовинчестерная технология, базовым функциональным элементом которой является геоход. Утверждается, что одной из ключевых систем геохода, определяющей его работоспособность, является трансмиссия. Отмечается, что реализованная в настоящее время в опытном образце геохода трансмиссия с гидроцилиндрами, имеет, как свои достоинства, так и недостатки. Это не позволяет считать трансмиссию с гидроцилиндрами оптимальным решением для её использования, при разработке геоходов нового поколения. Проводится обзор различных видов зубчатых зацеплений и делаются выводы о перспективности их применения в трансмиссии геохода

SARA-Service: Langzeitverfügbarkeit und Publikation von Softwareartefakten

Das SARA-Projekt (Software Archiving of Research Artefacts) hat das Ziel, einen neuen wissenschaftlichen Dienst zu entwickeln, mit dem Forschungsdaten und Software langfristig verfügbar gemacht und publiziert werden können. Die Posterpräsentation stellt Motivation, Zielsetzung sowie wichtige Kernelemente des SARA-Service vor. Im Zentrum der Darstellung steht der SARA-Service, der auf Git und den dort bereitgestellten Mechanismus zur Softwareversionierung aufbaut. Hierbei fungiert ein durch die Universität Konstanz bereitgestellter und zukünftig als Landesdienst betriebener GitLab-Server als Langzeitarchiv. Nutzer können hier ihre jeweiligen Versionsstände der Software zentral speichern. Die archivierten Versionen können mit dem SARA-Service zusätzlich in einem DSpace-Repositorium veröffentlicht werden. Der neue Service soll nach Ablauf der Evaluierungsphase grundsätzlich allen Fachdisziplinen zur Verfügung stehen