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    ABSTRACT: The usage of graphical representations of work and business process such as process models can be considered a common practice in modern organizations. As their development can become a complex task it is reasonable to draft them collaboratively. Also they become increasingly useful when used by larger groups throughout an organization. However despite modeling being a popular approach in practice, models are hardly used by non-experts and have little impact on the people actually working in these processes. This raises questions such as why there is so little use of models after their creation, how this usage can be increased and which kind of tools and modes of interaction are suitable for non-modeling experts. Furthermore as collaborative modeling most of the time remains restricted to collocated facilitated workshops. This approach however is not feasible as processes have to be rapidly adjusted to changing conditions inside and outside of an organization. So given the increasing usage of graphical representations in organizations, their collaborative use and creation is of vital interest for the CSCW community and therefore this workshop can be a starting point in forming a community for research in this area.
    10/2015; 9(4). DOI:10.4018/ijec.2013100101
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    ABSTRACT: Daily stressors, compared to traumatic events, are increasingly recognized as important risk factors for mental health. The role of general self-efficacy on the relationship between daily stress and aspects of mental health has not yet been examined. Taking into account the dual factor model of mental health, which postulates that mental health is more than the absence of psychopathological symptoms, we tested mediation effects of self-efficacy separately for positive and negative mental health. Total, direct and indirect effects were estimated using data from a large nationally representative German population sample (N = 1,031) by bootstrapped mediation analyses providing 95% bias corrected bootstrap confidence intervals. Results indicated self-efficacy as a mediator of the effects of daily stressors on mental health, with superior effect sizes for positive compared to negative mental health. Mediation effects were replicated in student samples from Germany (N=394), Russia (N=604) and China (N=8,669). Findings suggest that self-efficacy operates as a buffer of daily stress. However, a full mediation model was not supported as multiple psychological resources can have protective effects. This study provides the first transnational evidence for different stress-buffer effects for the two dimensions of mental health.
    International Journal of Clinical and Health Psychology 10/2015; DOI:10.1016/j.ijchp.2015.08.005
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    ABSTRACT: Background: Early assessment and aggressive hemodynamic treatment have been shown to increase the survival of patients in septic shock. Current and past sepsis guidelines recommend a resuscitation protocol including central venous pressure (CVP), mean arterial blood pressure (MAP), urine output and central venous oxygen saturation (ScvO2) for resuscitation within the first six hours. Currently, the established severity score systems like APACHE II score, SOFA score or SAPS II score predict the outcome of critically ill patients on the bases of variables obtained only after the first 24 hours. The present study aims to evaluate the risk of short-term mortality for patients with septic shock by the earliest possible assessment of hemodynamic parameters and cardiac biomarkers as well as their role for the prediction of the adverse outcome. Methods: 52 consecutive patients treated for septic shock in the intensive care unit of one centre (Marien Hospital Herne, Ruhr University Bochum, Germany) were prospectively enrolled in this study. Hemodynamic parameters (MAP, CVP, ScvO2, left ventricular ejection fraction, Hematocrit) and cardiac biomarkers (Troponin I) at the ICU admission were evaluated in regard to their influence on mortality. The primary endpoint was all-cause mortality within 28 days after the admission. Results: A total of 52 patients (31 male, 21 female) with a mean age of 71.4±8.5 years and a mean APACHE II score of 37.0±7.6 were enrolled in the study. 28 patients reached the primary endpoint (mortality 54%). Patients presenting with hypotension (MAP <65 mmHg) at ICU admission had significantly higher rates of 28-day mortality as compared with the group of patients without hypotension (28-day mortality rate 74 % vs. 32 %, p<0.01). Furthermore, the patients in the hypotension present group had significantly higher lactate concentration (p=0.002), higher serum creatinin (p=0.04), higher NTproBNP (p=0.03) and after the first 24 hours higher APACHE II scores (p=0.04). A MAP <65 mmHg was the only hemodynamic parameter significantly predicting the primary endpoint (OR: 4.1, CI: 1.1 - 14.8, p=0.008), whereas the remaining hemodynamic variables CVP, ScvO2, Hematocrit, Troponin I and left ventricular ejection fraction (LVEF) seemed to have no influence on survival. Besides, non-survivors had a significantly higher age (74.1±9.0 vs. 68.4±6.9, p=0.01). If hypotension coincided with an age ≥72 years, the 28-day mortality rate escalated to 88%. Conclusions: In our study, we identified a risk group with an exceedingly high mortality rate: the patients with an age ≥72 years and presenting with hypotension (MAP <65 mmHg). These data can be easily obtained at the time of the very first patient contact. As a result, an aggressive and a more effective treatment can be initiated within the first minutes of the primary care, possibly reducing organ failure and short-term mortality in this risk group.
    International journal of medical sciences 08/2015; 12(9):680-688. DOI:10.7150/ijms.11720


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Top publications last week by reads

Journal of Communication 10/2015; DOI:10.1111/jcom.12182
387 Reads
Journal of Neurology 11/2015; DOI:10.1007/s00415-015-7952-8
97 Reads

Top Collaborating Institutions


This map visualizes which other institutions researchers from Ruhr-Universität Bochum have collaborated with.

Rg score distribution

See how the RG Scores of researchers from Ruhr-Universität Bochum are distributed.