193 research outputs found
Automatic service discovery and composition for heterogeneous service partners
No full textService-oriented Computing ist ein Ansatz, um einige der Herausforderungen bei der Entwicklung von hochflexiblen Software-Systemen für Großunternehmen zu überwinden. SOC ist basiert auf der Idee der Bereitstellung und Nutzung verteilter Software-Komponenten als Services von Service-Anbietern bzw. Service-Nutzern. Um von bereitgestellten Services bei der Entwicklung von Systemen profitieren zu können, müssen geeignete Services automatisiert gefunden und komponieren werden können. Ansätze hierfür setzen auf ein automatisiertes Service-Matching, welches den gesuchten Service mit den angebotenen Services abgleicht. Ein solches Matching ist allerdings komplex, da gematcht Service-Beschreibungen oft nicht ausführlich genug und sehr heterogen sind. Im Gegensatz zu gängigen Standards, die zur Beschreibung von strukturellen Aspekte eines Services genutzt werden können, besteht ebenso die Notwendigkeit auch das Verhalten zu beschreiben. Andernfalls ist ein Service-Matching nur auf strukturellen Informationen möglich, was oft zu ungenauen Ergebnissen führt. Zusätzlich erschwert wird ein Matching aufgrund der Nutzung von unterschiedlichen Sprachen zur Service-Beschreibung, durch abweichende Datenmodelle oder dem unterschiedlichen Detailgrad der Beschreibungen. In dieser Arbeit wird einen Ansatz für das automatisierte Finden und Komposition von Services vorgestellt. Dieser Ansatz ist auf der Rich Service Description Language basiert, die besitzt visuelle Elemente, um die Struktur und das Verhalten von Services zu beschreiben. Basierend auf solchen Beschreibungen wird ein Matching-Ansatz vorgestellt, der die bereits erwähnten Heterogenität-Probleme schrittweise angeht und löst. Als Proof-of-Concept wurde ein Prototyp entwickelt, der einen Großteil des vorgestellten Ansatzes implementiert.Recently, Service-oriented computing (SOC) emerged as a promising trend to overcome major challenges that hurdle the development of large-scale distributed enterprise systems. SOC is based on the idea of independent development, publishing, discovery and invocation of the distributed software components as services by the service partners. To fully leverage the opportunities provided by the available plethora of services for the development of highly flexible enterprise systems, there is a requirement for automatic service discovery and composition approaches. These approaches mainly rely on automatic service matching, which is a complex task due to the challenges like lack of comprehensive service descriptions and the underlying multifaceted heterogeneity of the service partners. In contrast to the current standards for structural service descriptions, there is a requirement for comprehensive service descriptions comprising structural as well as behavioral aspects of the services. Otherwise an accurate service discovery and composition is not possible. An automatic service matching is further complicated due to the multifaceted heterogeneity of the service partners including use of different specification languages, different data models, or different granularity levels of the specification. In this thesis, we present an automatic service discovery and composition framework based on rich service description language with visual notations to specify the service descriptions in terms of their structural and behavioral aspects. Based on such comprehensive service descriptions, our framework introduces an elaborated matching mechanism for service requests and offers. Through different phases, it also overcomes the above-mentioned multifaceted heterogeneity of the service partners. As a proof-of-concept, our work is entailed with an implementation prototype implementing a significant part of the proposed framework.Tag der Verteidigung: 09.07.2015Paderborn, Univ., Diss., 201
Effective Leadership in Managing Diversity : A Cross-Cultural Study between India and Sweden.
No full textIn today's globalized and highly technological world, diversity has emerged as a key element of the modern corporate world. Because of globalization and the integration of cultures, diversity offers organizations and leaders both benefits and problems. This study explores the dynamics of effective leadership in managing cultural diversity, with an emphasis on employees' expectations and perceptions in the two culturally distinct nations of Sweden and India. For an organization to succeed in the globalized world of today, where diversified teams are the norm, leaders need to be able to navigate cultural differences. The study uses a comprehensive analysis of existing literature in addition to empirical data obtained from culturally diverse environments of Sweden and India. By using a mixed methods approach, 4 qualitative interviews with the managers and 96 quantitative surveys from both nations were analyzed. The qualitative study indicated that managers emphasize equality, inclusion, and the need for effective interpersonal and communication skills, demonstrating an extensive awareness of the value of diversity. The findings of a quantitative study showed that while power distance, individualism, and gender equality differ significantly between Swedish and Indian leaders, task-oriented behaviors are similar. Despite cultural differences, both cultures place a high priority on resolving conflicts and maintaining harmony in the workplace, suggesting that these are qualities that all cultures value equally. The study contributes to the development of strategies and practices that support leaders in effectively managing cultural diversity, by fostering cultural collaboration and organizational effectiveness across different teams.
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China's foreign policy towards Central Asia: expanding the concepts of national interest and national security
No full textThe present study provides an analysis of China’s foreign policy towards Central Asia to trace ‘culture of China’s foreign policy’. The culture of China’s foreign policy approach deals with China as an identity and process rather than being static or within boundaries. The present research highlights China’s multilateral and cooperative policies in Central Asia and with Russia as an outcome of evolutionary process of construction of China’s identity. The complex process of building relations with Central Asian region although within a short period of time (in post-Soviet context) are analysed to make a case for China’s innovative (partially) political processes of dealing with frontier security and embracing multilateralism. This is explained by studying the evolution of China’s identity and interests and the role of significant events that affect its perceptions of self and that are a prescription for its policy orientations as observed in case of foreign policy towards Central Asia. The theoretical foundation of Peter Katzenstein thesis is helpful premises upon which an argument in favour of the discourse of identity and security is developed to see how culture of national security of China and ‘complementarity’ of Central Asian states is at work in security cooperation seen among these states. By problematizing the notion of ‘national interest’, the present study argues that interests of the states can be contextualized in a broader environment referred as civilization to trace the relationship between interests and identities of China as at play in Central Asian region. By placing the political state of ‘China’ in the broader context of civilization and as evolving, helps understand how Chinese political spectrum seeks to construct and maintain a great power identity while locating ‘self’ against ‘others’. It further argues that the cooperative and multilateral policies of China in form of Shanghai Cooperation Organization can be understood best by studying how the configurations of identity of China has guided the policy formation process; that constructs and reconstructs interstate normative structure in form of SCO
Effective Leadership in Managing Diversity : A Cross-Cultural Study between India and Sweden.
No full textIn today's globalized and highly technological world, diversity has emerged as a key element of the modern corporate world. Because of globalization and the integration of cultures, diversity offers organizations and leaders both benefits and problems. This study explores the dynamics of effective leadership in managing cultural diversity, with an emphasis on employees' expectations and perceptions in the two culturally distinct nations of Sweden and India. For an organization to succeed in the globalized world of today, where diversified teams are the norm, leaders need to be able to navigate cultural differences. The study uses a comprehensive analysis of existing literature in addition to empirical data obtained from culturally diverse environments of Sweden and India. By using a mixed methods approach, 4 qualitative interviews with the managers and 96 quantitative surveys from both nations were analyzed. The qualitative study indicated that managers emphasize equality, inclusion, and the need for effective interpersonal and communication skills, demonstrating an extensive awareness of the value of diversity. The findings of a quantitative study showed that while power distance, individualism, and gender equality differ significantly between Swedish and Indian leaders, task-oriented behaviors are similar. Despite cultural differences, both cultures place a high priority on resolving conflicts and maintaining harmony in the workplace, suggesting that these are qualities that all cultures value equally. The study contributes to the development of strategies and practices that support leaders in effectively managing cultural diversity, by fostering cultural collaboration and organizational effectiveness across different teams.
Prevalence of Hepatitis in Paediatric Oncologic Patients: A Single Centre Study
No full textABSTRACT: Background: Oncologic problems are increasing day by day very rapidly. It includes leukaemia, solid tumors, germ cell tumors and many others. Leukaemia is a growing reason of paediatric mortality. Children with leukaemia, usually have low blood count which requires blood transfusions. These transfusions can lead to transfusion associated viral infections particularly Hepatitis B and Hepatitis C. Objective: To identify the prevalence rate of HBV and HCV infections in paediatric oncology patients and to identify the probable relation of transfusion with that of the spread of the infection and its detection method. Methods: This cross-sectional study was carried out at molecular department of Child Aid Association Karachi from January 2013 to December 2015. A sample size of 200 paediatric oncology patients was taken. The samples were processed by Real Time Polymerase Chain Reaction (PCR) technique. Result: The results showed that out of 200 patients, 17 were HBV positive having a prevalence rate of 8.5% and 69 were HCV positive with prevalence rate of 34.5%. Among 17 HBV positive patients, no patient was infected before the start of treatment while 03 out of 69 HCV positive patients were previously infected. Conclusion: The incidence of HCV and HBV is raising in the paediatric oncology patients on treatment. This demonstrates that the management may be responsible for this predicament. These patients are exposed to cytotoxic and chemotherapeutic drug infusions and multipleblood transfusions. Therefore blood transfusion practices should meet the standard operating procedures which ensure the use of sterilized equipments and the donors should be screened for viral hepatitis through PCR
THE IMPACT OF UNIVERSITY INTERNAL FACTORS ON ACADEMIC ENTREPRENEURSHIP: EVIDENCE FROM UNIVERSITY RESEARCH
Full text linkAcademic entrepreneurship, as a practice and a field forscholarly investigation, provides an opportunity to challengequestions and rethink about the nature and scope of publication. This paper puts forward an aspect for the research universities of Pakistan that can result in new value generation and job creation. Academic entrepreneur is missing forms of entrepreneurship in the relatively higher priority given to promoting or capturing economic value. Current research aims to fill this gap by adapting the corporate entrepreneur as a construct for academic entrepreneurship and internalenvironment as a motivational factor in order to propose a model for this study. Findings support that university reward system; support, leadership, and organization structure are the key indicator of academic entrepreneur within these research universities. Results provide evidence that academic entrepreneurship has a positive influence on research commercialization and technology transfer for these higher education institutes
First Impressions on Supporting Students with a Course-Aligned, AI-powered Virtual Teaching Assistant (TA), Oliver
No full textWe show in this paper that an LLM-based tutor with a simple, web-based interface is readily used by students to answer natural language queries without specific training. Through analysis of the log data of nearly 3000 separate interactions, we find that students tend to use the tutor to clarify concepts and explain sticking points in laboratory assignments. Results indicate that the chatbot was used throughout the course at times outside of regular help-seeking hours, indicating that the tutor provides personalized support to students who are in need of help even when it is not available. Finally, through analysis of the log data, we can generate useful insights into student learning throughout the course
Classification Using Efficient LU Decomposition in Sensornets
No full textWe consider the popular application of detection, classification and tracking and their feasibility in resource constrained sensornets. We concentrate on the classification aspect, by decomposing the complex, computationally intensive signal processing Maximum-A-Posterior (MAP) classifier into simpler computationally and communicationally load balanced procedures, using a clustering approach. LU decomposition is an efficient approach for computing the inverse of covariance matrices required in the MAP classifier. We thus explore feasibility of LU decomposition in sensornets. We present power-aware and load balanced techniques for LU decomposition of the covariance matrices in sensornets alongwith their analytical and power consumption analyses. KEY WORD
What are the most effective ways you can help patients stop smoking?
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Lung function parameters in overweight patients with COPD in relation to body mass index and waist circumference and impact on quality of life
No full textObjective We investigated the correlation of lung function parameters with increased body mass index (BMI) and waist circumference (WC) and determined the impact on health-related quality of life (HRQoL). Methods We conducted a cross-sectional analytical study at a teaching hospital among 173 individuals. We assessed anthropometric measurements, dynamic lung function, clinical history, and HRQoL using the Airway Questionnaire. Correlations of dynamic lung function parameters with BMI and WC were analyzed. Results In total, 51% were men (mean patient age 47.8 ± 10.5 years, median 48 years). The average BMI was 30.3 ± 8 kg/m 2 . Among 173 participants, 49% were smokers, with 16 ± 9 pack-years smoked; 80% of participants had chronic obstructive pulmonary disease (COPD). We observed compromised mid-expiratory flow (MEF), especially in young and overweight smokers. A moderately strong positive relationship was observed between WC and HRQoL scores, indicating a decline in HRQoL with increased WC. Conclusion In our study, HRQoL declined with increasing WC. We found a decrease in MEF among young and overweight smokers who were otherwise healthy and whose other lung function parameters were normal; this finding can be regarded as a pre-COPD marker. These individuals should be reassessed for the development of COPD. Further prospective studies are needed to verify our findings
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