Helmut Lang

Learn More
PURPOSE With improved HLA-typing techniques, it is presently unclear what degree of identity is necessary for successful unrelated-donor stem-cell transplantation (UD SCT). Here, we describe the outcome after matched and mismatched UD SCT using a graft-versus-host disease (GVHD) prophylaxis including high-dose rabbit anti-T lymphocyte globulin (ATG). (More)
Silicon is an essential nutrient of fundamental importance to human biology. It has been shown that silicon is required for bone, cartilage, and connective tissue formation. However, the assessment of silicon concentration is difficult as reference values are lacking. The aim of the present study was to establish reference values for apparently healthy(More)
In todays mixed signal System-on-Chip designs advanced Design-for-Test techniques become more and more important to meet test coverage and quality requirements. However, standard strategies often cannot be used because of design specific requirements like the limitation of available input and output pins. This paper describes the Design-for-Test strategy of(More)
One of the most important challenges in the field of human-computer interaction is maintaining and enhancing the willingness of a user to interact with a technical system. This cooperativeness provides a solid basis for a real dialogue between user and technical system. The goals and tasks of an intelligent technical system seem unrealistic without it. In(More)
In this paper we present a novel help system that integrates material provided by various contributors into a single point of reference for user assistance. Therefore different kinds of resources are organized by means of collaborative tagging. To retrieve the content natural language is used to communicate with an avatar on a web page. The advantage of our(More)
Maintaining and enhancing the willingness of a user to interact with a technical system is crucial for human-computer interaction (HCI). Trust has shown to be an important factor influencing the frequency and kind of usage. In this paper we present our ongoing work on using explanations to maintain the trust relationship between human and computer. We(More)