Refine
Year of publication
Document Type
- Conference Proceeding (470) (remove)
Keywords
- Nachhaltigkeit (8)
- Solarthermie (6)
- physiotherapy (5)
- Landscape Planning (3)
- LiDAR (3)
- Nutritional Footprint (3)
- performing artists (3)
- Agile Lehre (2)
- Autarkie (2)
- Baumpflege (2)
Institute
- Fakultät AuL (211)
- Fakultät WiSo (169)
- Fakultät IuI (58)
- Institut für Duale Studiengänge (13)
- Institut für Management und Technik (13)
- Institut für Kommunikationsmanagement (2)
- Fakultät MKT (1)
- Institut für Musik (1)
- Sonstige Einrichtungen (1)
This paper presents an optimized algorithm for estimating static and dynamic gait parameters. We use a marker- and contact-less motion capture system that identifies 20 joints of a person walking along a corridor.
Based on the proposed gait cycle detection basic metrics as walking frequency, step/stride length, and support phases are estimated automatically. Applying a rigid body model, we are capable to calculate static and dynamic gait stability metrics. We conclude with initial results of a clinical study evaluating orthopaedic technical support.
Venous leg ulcers and diabetic foot ulcers are the most common chronic wounds. Their prevalence has been increasing significantly over the last years, consuming scarce care resources. This study aimed to explore the performance of detection and classification algorithms for these types of wounds in images. To this end, algorithms of the YoloV5 family of pre-trained models were applied to 885 images containing at least one of the two wound types. The YoloV5m6 model provided the highest precision (0.942) and a high recall value (0.837). Its mAP_0.5:0.95 was 0.642. While the latter value is comparable to the ones reported in the literature, precision and recall were considerably higher. In conclusion, our results on good wound detection and classification may reveal a path towards (semi-) automated entry of wound information in patient records. To strengthen the trust of clinicians, we are currently incorporating a dashboard where clinicians can check the validity of the predictions against their expertise.
Interpolation of data in smart city architectures is an eminent task for the provision of reliable services. Furthermore, it is a key functionality for information validation between spatiotemporally related sensors. Nevertheless, many existing projects use a simplified geospatial model that does not take the infrastructure, which affects events and effects in the real world, into account. There are various available algorithms for interpolation and the calculation of routes on infrastructure based graphs and distances on geospatial data. This work proposes a combined approach by interconnecting detailed geospatial data whilst regarding the underlying infrastructure model.
An Iterative Methodology for Developing National Recommendations for Nursing Informatics Curricula
(2016)
The increasing importance of IT in nursing requires educational measures to support its meaningful application. However, many countries do not yet have national recommendations for nursing informatics competencies. We thus developed an iterative triple methodology to yield validated and country specific recommendations for informatics core competencies in nursing. We identified relevant competencies from national sources (step 1), matched and enriched these with input from the international literature (step 2) and fed the resulting 24 core competencies into a survey (120 invited experts from which 87 responded) and two focus group sessions with a total of 48 experts (steps 3a/3b). The subsequent focus group sessions confirmed and expanded the findings. As a result, we were able to define role specific informatics core competencies for three countries.
Knowledge of the small-scale nutrient status of a field is an important basis for decision-making when it comes to optimising the fertiliser use in crop production. Currently, the traditional method involves soil sampling in the field and soil sample analysis in the laboratory as two separate working processes.
The previous research project "soil2data" developed a mobile field laboratory for different carrier vehicles. In the follow-up project "prototypes4soil2data", the results of soil2data are further developed. A mixed soil sample is collected during the drive on the field. The soil sample is then wet-chemically prepared and analysed. The overall soil sampling and analysis process is divided into the following process steps: soil sampling planning, soil sampling, soil preparation, soil analysis and data management. The process steps are modified for the mobile field laboratory and the process steps run in parallel. The new soil extraction method is based on official German methods (VDLUFA) to ensure the interoperability of the analysis results with the VDLUFA fertiliser recommendations. An innovative key component is the NUTRISTAT analysis module (lab-on-chip with ISFET measurement technology). It can measure pH, the nutrients NO3-, H2PO4-, K+ and the electrical conductivity. In addition to the advantages of rapid data availability and no need to transport soil material to the laboratory, it provides a future basis for new application, e.g. verification of current results in the field during soil sampling with existing results or dynamic adjustment of soil sampling during work in the field.
Analysis of methods for prioritizing critical data transmissions in agricultural vehicular networks
(2020)
Applying wireless communication technologies to agricultural vehicular networks often results in high end-to-end delays and loss of packets due to intermittent or broken connectivity. This paper analyses the methods for the successful delivery of the vehicular data within acceptable delay times. Different kinds of data that are generated and transmitted in agricultural networks are considered in this paper, followed by the data prioritization methods which allow critical data to be prioritized against other data. In this regard, Enhanced Distributed Channel Access, Differentiated Services, and application-based data rate variation are discussed in conjunction with the Simple Network Management Protocol. These techniques are simulated or tested separately and then together and the results show that even in poor network conditions, high-prioritized data is not lost or delayed.
The accounting of small and medium enterprises is specific, compared to the accounting of large enterprises, for several reasons. First of all, lower business volume implies less demanding accounting in terms of less turnover and the number of accounts to be processed, lower financial reporting requirements, more favourable tax treatment is expected and the like. Practical experience in the years of application of EU-accounting directives, which represent the framework of financial reporting of companies at the EU level, pointed to certain difficulties or excessive administrative burden of small and medium enterprises in relation to the requirements for large companies and identified areas for improvement. The complexity of these regulations as well as problems in practical application have led to the need to develop and publish a revised single accounting directive (2013/34/EU). This Directive was primarily adopted with the aim of simplifying the accounting and financial reporting of small and medium-sized enterprises.
Today, it is common for small and medium-sized enterprises to go beyond the borders of one country. In the internationalization of business, SMEs face many challenges and potential barriers. First of all, it refers to financial, human and procedural barriers, but also to informational barriers related to regulations, rules and laws of other countries. Since the accounting and tax treatment of the same business transaction may differ between countries, it seems entirely justified to investigate whether there are differences in the regulation and regulation of the accounting system between the two countries. This paper compares the characteristics of small and medium-sized enterprises’ accounting systems between two economically strongly connected countries, Germany and Croatia, which is the main goal of this paper. It is well known that financial reporting is a particularly important, final phase of accounting data processing. Namely, financial reporting system of these two countries is compared by using the method of comparison and classification analysis. The types and scope of financial statements have been defined and the content of financial statements that SMEs are obliged to compile and publish has been analysed. The paper pays additional attention to the analysis of similarities and differences between these two accounting regulations as well as current events in the implementation of the revised accounting directive into national legislation, especially in simplifying the financial reporting of the smallest, but numerically most represented micro enterprises. The important finding of the research show that some changes have been made but there is still room to improve accounting regulations for this segment of entrepreneurship.
Auch um die Milchviehhaltung gibt es seit einigen Jahren eine öffentlich geführte Tierwohldiskussion. Zwei Aspekte sind dabei immer wieder Gegenstand der Kommunikation: Die Anbindehaltung und der Weidegang. Auf Basis von qualitativen Interviews mit zivilgesellschaftlichen Verbänden und landwirtschaftlichen Verbänden wurden die Einstellungen und die Argumentationsmuster beider Verbandsgruppen zu den Haltungsformen Weidegang und Anbindehaltung ergründet. Von Interesse ist dieser Vergleich, da im Rahmen öffentlich-medialer Kommunikation die Diskussionsfronten zwischen beiden Verbandsgruppen verhärtet erscheinen. Die Analyse der Aussagen, die im Rahmen der qualitativen Interviewreihe dieser Studie getätigt wurden, erlaubt die begründete Annahme, dass beide Verbandsgruppen mit den Themenkomplexen Anbindehaltung und Weidehaltung in einem wissenschaftliche orientierten Kommunikationskontext differenziert umgehen. Eine klare Polarisierung der Einstellungen zwischen beiden Verbandsgruppen ist in einem solchen Umfeld nicht mehr wahrnehmbar gewesen.
Die Nutzung von Sensorsystemen bei der teilflächenspezifischen Bewirtschaftung eines Schlags steigert den Ertrag sowie die Wirtschaftlichkeit des Pflanzenanbaus. Dennoch tragen weitere Faktoren zur optimalen Nährstoffversorgung einer Pflanze bei, als sie von solch einem lokal arbeitenden System erfasst werden. Um die Effizienz dieser Precision Farming Systeme auszubauen ist der nächste, hier erfolgreich durchgeführte Schritt die Anbindung der mobilen Landmaschine über das Internet an eine regionsübergreifende Datenanalyseplattform und die Ausführung zeitkritischer Optimierungsfunktionen auf der Landmaschine.
CIOs' innovation capability is regarded as a precondition of successful HIT adoption in hospitals. Based on the data of 142 CIOs, this study aimed at identifying antecedents of perceived innovation capability. Eight features describing the status quo of the hospital IT management (e.g. use of IT governance frameworks), four features of the hospital structure (e.g. functional diversification) and four CIO characteristics (e.g. duration of employment) were tested as potential antecedents in an exploratory stepwise regression approach. Perceived innovation capability in its entirety and its three sub-dimensions served as criterion. The results show that CIOs' perceived innovation capability could be explained significantly (R2=0.34) and exclusively by facts that described the degree of formalism and structure of IT management in a hospital, e.g. intensive and formalised strategic communication, the existence of an IT strategy and the use of IT governance frameworks. Breaking down innovation capability into its constituents revealed that “innovative organisational culture” contributed to a large extent (R2=0.26) to the overall result sharing several predictors. In contrast, “intrapreneurial personality” (R2=0.11) and “openness towards users” (R2=0.18) could be predicted less well. These results hint at the relationship between working in a well-structured, formalised and strategy oriented environment and the overall feeling of being capable to promote IT innovation.
Hintergrund: Instrumentalisten leiden häufig unter spielbedingten (neuro-) muskuloskelettalen Erkrankungen. Diese zeigen sich bei Streichern, wie Violinisten, Bratschisten und Cellisten, am häufigsten in Form von Beschwerden im Oberkörper – insbesondere im Schulter-Nacken-Bereich. Die apparative Bewegungsanalyse hat sich bereits als hilfreich bei der Beurteilung von muskuloskelettalen Erkrankungen und schädlichen Bewegungsmustern erwiesen und wird für die Diagnostik bei funktionellen Störungen empfohlen. Es wurde bereits gezeigt, dass die apparative biomechanische Bewegungsanalyse ein valides und klinisch praktikables Werkzeug für die genaue und objektive Untersuchung von Bewegungen bei Streichern ist, jedoch ist ihr Einsatz in der klinischen Konsultation immer noch sehr unüblich. Aus diesem Grund existiert ein Mangel an gut etablierten Bewegungsanalyse-Protokollen zur Untersuchung funktioneller Störungen bei Streichern unter Einsatz biomechanischer Instrumente in einem klinischen Umfeld wie der Physiotherapie.
Ziel ist es daher, die Entwicklung und Anwendung eines solchen Protokolls vorzustellen für die Beurteilung der funktionellen Spielbewegungen des Oberkörpers bei sowohl hohen als auch tiefen Streichern in einem physiotherapeutischen Umfeld.
Methode: Zunächst wurden auf Basis einer klinischen Fragestellung relevante Symptombereiche und Messparameter bestimmt. Anschließend wurden beteiligte Segmente, Gelenke und Muskeln selektiert. Darauf basierend wurde ein umfassendes (mechanisches) Modell des Oberkörpers sowie die dazugehörigen Koordinatensysteme und Rotationssequenzen definiert. Dies lenkte sowohl die Spezifikation eines speziell angefertigten Marker-Sets sowie fortgeschrittener Ansätze wie zur funktionellen Bestimmung von Gelenkzentren und -achsen, als auch die Auswahl und Platzierung von Oberflächenelektroden. Schließlich wurden Aktivitäten zur Kalibrierung und Untersuchung der Bewegungsfunktion sowie relevante Analyseparameter und deren Darstellungsformen festgelegt.
Die Protokolldurchführung beinhaltet zunächst die Auswahl der zu untersuchenden Segmente, Gelenke und Muskeln ausgehend von einer oder mehreren klinischen (Arbeits-)Hypothesen bzw. von den spezifischen Symptombereichen. Darauf basierend werden die benötigten Marker und Oberflächenelektroden konfiguriert und platziert. Anschließend werden die festgelegten Kalibrierungsmessungen und Bewegungsaufgaben durchgeführt. Schließlich werden die relevanten Ergebnisparameter zur Überprüfung der Hypothesen extrahiert.
Der klinische Einsatz der Methode wird exemplarisch anhand einer Violinistin mit spielbedingten Schmerzen erläutert.
Klinische Implikationen: Die potenzielle Anwendung des vorgestellten Vorgehens ist die intra-individuelle Evaluation von gleichzeitig der Gelenk- als auch der Muskelfunktion bei hohen und tiefen Streichern während der physiotherapeutischen Konsultation. Dies soll sowohl zur Diagnose funktioneller Erkrankungen des Bewegungsapparates in Form einer objektiven, umfassenden und dennoch klinisch praktikablen diagnostischen Untersuchung als auch zum prä-post-interventionellen Vergleich beitragen.
Between Ekaterinburg and Nowosibirsk, in the Western Siberian grain belt, spring wheat is grown on fertileChernozem soils. Field and farm sizes are large but the land-use intensity per area is low compared to CentralEurope. Fertilizers and pesticides are applied only in low to moderate quantities and yields range between 10and 20 dt ha-1 . We studied the arable weed flora in the northern forest steppe zone of Tyumen region using arandomized sampling design. Surprisingly, the species richness was only moderate, on average 9.8 ± 3.8species per 100 m². Compared to weed communities of Bashkiria (Southern Ural) and less intensively usedarable land of Central Europe these numbers are rather low. Moreover, most of the recorded species werecosmopolitans or widely distributed throughout the temperate zone. We suggest that the land use intensitywas high enough to reduce the density of a number of weed species in a way that they were not registered byour random sampling design. The limited conservational value of the weed vegetation of large grain fields inTyumen leads to the conclusion that if intensification of land use is unavoidable, it should be directed to arableland and not to ex-arable land or ancient grassland, which is of higher conservation value.
Diet can influence healthy aging through anti- or proinflammatory effects, partly by modulating the gut microbiome composition. This study investigated the relationships between the Dietary Inflammatory Index (DII), the gut microbiome, and nutritional status in elderly individuals. Methods: This cross-sectional analysis included 114 home-dwelling individuals aged over 70 years. The Energy-adjusted DII (E-DII) was calculated from 3-day food diaries, and blood samples were taken to measure micronutrient status, glucose, and lipid metabolism. Body composition was assessed using bioimpedance, and fecal gut microbiome composition was analyzed through 16S rRNA gene sequencing. The participants were categorized into maintaining an anti-inflammatory diet (AD) and a pro-inflammatory diet (PD) based on the median E-DII score. The associations of E-DII groups with blood markers and microbial diversity and composition were examined using the analysis of covariance, permutational analysis of variance, and multivariate linear models. Results: The AD (n = 57, 76 ± 3.83 years) and PD (n = 57, 75 ± 5.21 years) groups were similar in age but differed in sex distribution, with a higher proportion of females in the AD group (p = 0.02). When compared to the PD group and adjusted for sex, the AD group had a lower body mass index, fat mass, fasting insulin level, HOMA-IR (Homeostasis Model Assessment of Insulin Resistance), fasting triglycerides, and serum uric acid concentration (all p < 0.05), with higher concentrations of high-density lipoprotein, red-blood-cell folate (RBC), and Omega-3 index (all p < 0.05). While the microbial diversity and composition did not differ between the DII groups, folate concentrations were negatively associated with Agathobacter and positively associated with Bacteroides abundance (both q = 0.23). Lower uric acid concentrations were associated with a higher abundance of Bifidobacterium (q = 0.09) and lower abundance of Phocaeicola (q = 0.11). Discussion: The study suggests that following an anti-inflammatory diet is associated with improved nutritional status in the elderly. Dietary blood markers, rather than E-DII, were found to be associated with the gut microbiome, suggesting a potential link between the microbiome and changes in nutritional markers independent of diet. Further studies are needed to explore the causal relationship between dietary inflammatory potential, gut microbiome, and healthy aging.
Das Informationsmanagement steht im Zentrum erfolgreicher eHealth-Innovationsprozesse von Krankenhäusern. Im Kontext komplexer, zum Teil tradierter Krankenhausstrukturen kann die Gestaltungsfähigkeit des Informationsmanagements durch eine ausgeprägte Intrapreneurship-Kultur erhöht werden, wovon vermutlich auch der Digitalisierungsgrad der Einrichtungen profitiert. Vor diesem Hintergrund verfolgte die vorliegende Studie zwei Forschungsfragen: (1.) Welche Effekte hat Intrapreneurship auf den Digitalisierungsgrad der Krankenhäuser und (2.) inwiefern werden diese Effekte durch das Informationsmanagement beeinflusst? Zur Beantwortung der Forschungsfragen wurde ein konzeptionelles Untersuchungsmodell entwickelt, welches mit Daten von 224 IT-Leitern evaluiert wurde. Die Ergebnisse bestätigen, dass Intrapreneurship die Umsetzung von eHealth-Anwendungen positiv beeinflussen kann. Die identifizierten Effekte waren jedoch vorwiegend indirekter Art, vermittelt durch den Professionalisierungsgrad des Informationsmanagements. So kann Intrapreneurship auf IT-Leiter-Ebene und auf Ebene der Gesamtorganisation zu einer Professionalisierung des strategischen Informationsmanagements führen. Auf Ebene der IT-Abteilung profitiert vor allem das operative Informationsmanagement von einer ausgeprägten Intrapreneurship-Kultur.