Gerhard Leitner

Learn More
The aim of the present study was to evaluate the autochthonous yeast population during spontaneous fermentations of grape musts in Austrian wine-producing areas. Investigation of genomic and genetic variations among wine yeasts was a first step towards a long-term goal of selecting strains with valuable enological properties typical for this geographical(More)
To evaluate the influence of the genomic properties of yeasts on the formation of wine flavour, genotypic diversity among natural Saccharomyces cerevisiae strains originating from grapes collected in four localities of three Austrian vine-growing areas (Thermenregion: locations Perchtoldsdorf and Pfaffstätten, Neusiedlersee-Hügelland: location Eisenstadt,(More)
In this paper we explore the usage of "force fields" in order to facilitate the computer user during pointing tasks. The first study shows that pointing time can be reduced by enhancing a pointing target with an invisible force field that warps the screen cursor toward the target center. The application of force fields is further supported in that we show(More)
Das Smart Home mit all seinen Möglichkeiten und Funktionen hat sich im privaten Wohnumfeld bisher nicht durchgesetzt. Die Gründe dafür sind vielschichtig, Aspekte der Human Computer Interaction (HCI) spielen dabei aber eine entscheidende Rolle. Anhand des aktuellen Leitkonzepts der HCI, User Experience, analysiert der Beitrag Bedieneigenschaften und(More)
In a cross-sectional study the effects of several nutritional factors on the manifestations of osteoporosis were investigated in 23 postmenopausal women aged 50 to 70 years. Twelve women (group 1) with osteoporosis and eleven healthy control subjects (group 2) were instructed to keep a seven-day nutritional record. Body mass index (BMI) was recorded, and(More)
adamantinoma). Case report and review of literature . J Cancer Res Clin Oncol 2008 ; 134 : 427 – 31 . Qureshi AA , Shott S , Mallin BA , Gitelis S . Current trends in the [2] management of adamantinoma of long bones. An international study . J Bone Joint Surg Am 2000 ; 82-A : 1122 – 31 . Hazelbag HM , Taminiau AH , Fleuren GJ , Hogendoorn PC . [3](More)
PURPOSE Cumulating evidence indicates that germline variants in the Wnt, Notch, and Hedgehog pathways are involved in colon carcinoma progression and metastasis. We investigated germline polymorphisms in a comprehensive panel of Wnt, Notch, and Hedgehog pathway genes to predict time to recurrence (TTR) and overall survival in patients with stage II and III(More)
Recommender technologies are crucial for the effective support of customers in online sales situations. The state-of-the-art research in recommender systems is not aware of existing theories in the areas of cognitive and decision psychology and thus lacks of deeper understanding of online buying situations. In this paper we present results from user studies(More)