Equivalence after extension for compact operators on Banach spaces

In recent years the coincidence of the operator relations equivalence after extension and Schur coupling was settled for the Hilbert space case, by showing that equivalence after extension implies equivalence after one-sided extension. In this paper we investigate consequences of equivalence after extension for compact Banach space operators. We show that generating the same operator ideal is necessary but not sufficient for two compact operators to be equivalent after extension. In analogy with the necessary and sufficient conditions on the singular values for compact Hilbert space operators that are equivalent after extension, we prove the necessity of similar relationships between the $s$-numbers of two compact Banach space operators that are equivalent after extension, for arbitrary $s$-functions. We investigate equivalence after extension for operators on $\ell^{p}$-spaces. We show that two operators that act on different $\ell^{p}$-spaces cannot be equivalent after one-sided extension. Such operators can still be equivalent after extension, for instance all invertible operators are equivalent after extension, however, if one of the two operators is compact, then they cannot be equivalent after extension. This contrasts the Hilbert space case where equivalence after one-sided extension and equivalence after extension are, in fact, identical relations. Finally, for general Banach spaces $X$ and $Y$, we investigate consequences of an operator on $X$ being equivalent after extension to a compact operator on $Y$. We show that, in this case, a closed finite codimensional subspace of $Y$ must embed into $X$, and that certain general Banach space properties must transfer from $X$ to $Y$. We also show that no operator on $X$ can be equivalent after extension to an operator on $Y$, if $X$ and $Y$ are essentially incomparable Banach spaces

The Cultural Influence and Interpretation of Depressive and Anxiety Disorders

The diagnosis and treatment of depressive and anxiety disorders has changed rapidly in the past century. Western medicine has produced diagnostic criteria, pharmaceuticals, and different therapies, increasing public awareness of these conditions. This research investigates the potential and perceived cultural, familial, and political influences on anxiety and depressive disorders in the current biomedical system; analyzes the effects of this system on the patients within it; and compares the causality, diagnosis, and treatment of these conditions cross-culturally. To accomplish these research goals, I conducted in-depth interviews with people affected by depression and anxiety in the Atlanta area. I will present my analysis of the interview data collected, focusing on the extent to which each participants\u27 familial and cultural backgrounds and attitudes towards biomedicine affected their choices and experiences with treatment. I also explore the role of pharmaceutical advertising and marketing strategies in patients’ perceptions of their disorder and treatment options

ADOPTION OF GRID COMPUTING: AN EMPIRICAL VERIFICATION OF AN INTER- AND INTRA-ORGANIZATIONAL APPROACH

Grid computing is a technology that offers the opportunity to share IT-resources between departments in organizations as well as between different organizations. Thereby adopters may obtain significant advantages like cost reduction and efficient IT-resource load balancing. Nevertheless this technology is not established in the industry by now. We developed an adoption model to measure the major factors which are influencing adoption of Grid computing in an organizational environment. As Grid computing is an inter-organizational system providing both inter- and intra-organizational linkages our adoption model accounts for both areas of influence factors. The inter-organizational influence factors were based on a model proposed by Teo et al. (2003) who reverted to the institutional theory. Mimetic-, coercive- and normative pressures exerted by surrounding organizations like suppliers, customers and competitors are representing the inter-organizational influence factors in our adoption model. Following the organizational capability-based theory we included intra-organizational influence factors which consist of IT-related factors, the innovativeness of an organization and the attitude towards outsourcing of IT-resources. Using structural equation modeling our adoption model identified mimetic pressures (emerging from competitors), the innovativeness and the attitude towards outsourcing of IT-resources as factors with significant positive influence on the adoption of Grid computing

The Effects of Outcome Expectations on Monetary- and Non-Monetary Rewarded Product Recommendations in Open- and Invitation-only Social Networking Sites: An Empirical Comparison of Facebook and ASmallWorld

Social networking sites experience huge growth in their number of members. For marketing purposes they are very beneficial to spread Word-of-Mouth in terms of product recommendations. A closer view detects that social networking sites can be divided in open- (OSNs) and invitation-only social networking sites (ISNs). Their members may behave different in contributing knowledge in terms of product recommendation depending in which social networking site they are currently remaining. We therefore first analyze if the members are willing to recommend products for either monetary or non-monetary rewards in their preferred social networking site as well as if they consider these recommendations in their purchasing decision and connect this to a member’s personal- and community-related outcome expectations. Second we compare the results between ISN- and OSN-members to conclude in which type of social networking site a product recommendation should be monetary rewarded or not

Acceptance of a Web OS as a Commercial Consumer Service Bundle

The web is fundamentally changing. The many facets of this change are usually abstracted as Web 2.0. The core of Web 2.0 consists of the evolutionary step that interoperation and content-creating applications are provided via the web in addition to traditional static documents. Ahead of this evolution are web operating systems (WebOS) like g.ho.st that enable the consumer to migrate their complete operating system desktop to the web – a revolutionary step of personal computing. The required computational and storage resources may be procured on demand e.g. from cloud computing services by the WebOS service provider. This research-in-progress-article introduces an adoption model (TAM) for a WebOS as a consumer service. The subject of our survey will be a service bundle comparable to a mobile phone plan. The aim of the adoption model is to measure the acceptance of this service bundle and to identify the major determinants which influence the consumer’s adoption intention in order to specify which consumers may be future customers and to learn how to attract them from a marketing perspective. At the current early stage of adoption we intend to contribute insights that can be directly transformed into advice how this new technology can be successfully established

HLA-MA: Simple yet powerful matching of samples using HLA typing results

We propose the simple method HLA-MA for consistency checking in pipelines operating on human HTS data. The method is based on the HLA typing result of the state-of-the-art method OptiType. Provided that there is sufficient coverage of the HLA loci, comparing HLA types allows for simple, fast, and robust matching of samples from whole genome, exome, and RNA-seq data. This approach is reliable for sample re-identification even for samples with high mutational loads, e.g., caused by microsatellite instability or POLE1 defects

The Utility of TAM-Perceptions: Integration of Technology Perceptions into Choice-Based Conjoint Analysis

Recent papers claim the technology acceptance model [TAM] is exhaustively examined by researchers and, thus, additional studies of traditional style may only provide a marginal contribution. Instead of adding new constructs to the TAM to describe its dependent or independent variables better, we develop an approach to combine the well-established constructs of TAM, which measure perceptions of a new technology, and the choice-based conjoint analysis [CBC], which measures the monetary value of product attributes from a marketing perspective. In combining both methods we are able to compare the overall technology perceptions with particular attributes of product realisations with respect to their importance. We measure how TAM constructs influence the baseline utility of a new technology. We empirically apply and discuss our approach and show how the TAM can make a distinctive contribution to Information Systems and Marketing Research

Digestiflow: from BCL to FASTQ with ease

Management of raw-sequencing data and its pre-processing (conversion into sequences and demultiplexing) remains a challenging topic for groups running sequencing devices. They face many challenges in such efforts and solutions ranging from manual management of spreadsheets to very complex and customized laboratory information management systems handling much more than just sequencing raw data. In this article, we describe the software package DigestiFlow that focuses on the management of Illumina flow cell sample sheets and raw data. It allows for automated extraction of information from flow cell data and management of sample sheets. Furthermore, it allows for the automated and reproducible conversion of Illumina base calls to sequences and the demultiplexing thereof using bcl2fastq and Picard Tools, followed by quality control report generation. Availability and implementation: The software is available under the MIT license at https://github.com/bihealth/digestiflow-server. The client software components are available via Bioconda