98 research outputs found

    Enterprise Architecture in the Public Sector: Adoption and Institutionalization

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    Today’s organizations are utilizing technologies for building effectiveness management and services due to struggles with the various challenges of the information and communication technology age, such as integration, interoperability, agility, and change. Many view the enterprise architecture (EA) approach as a promising solution for coping with those challenges. Organizations also see the benefits of EA in dealing with other challenges, such as effective strategic planning, improved decision-making, and better business and information technology alignment. These benefits have led to an increased number of organizations adopting EA around the world, and some countries even have a law on EA, such as Finland and the US.Despite those EA benefits, EA practices pose a wide range of problems, from social to business to technological. Moreover, organizations that adopt EA struggle with limited signs of success, extremely slow utilization, and ineffective institutionalization. Although there are various studies on the matter, they tend to focus their efforts on working with the framework and its related issues, such as EA’s layers, methodologies, and tools. As a result, a comprehensive study about how EA gets adopted into organizations seems overlooked. The few exceptions, however, focus more on the outcomes rather than on insights into EA adoption, such as issues related to the root causes of problems, strategies for effective EA adoption, and the institutionalization process.Examining those issues would strengthen the theoretical foundation of EA adoption. It also could help practitioners improve the effectiveness of their EA adoption, as EA itself offers no value if it is not used in practice. Therefore, this research focuses on understanding insights into how EA gets adopted into organizations with dual studies. First is a study on the root causes of the problems and strategies for the effective adoption of EA in organizations. Second is a study on institutionalization processes when organizations adopt EA.The findings indicate several issues in EA adoption and institutionalization. First, there are several root causes from organizations, project teams, users, and EA itself. Second, there are various strategies and characteristics for effective adoption of EA practices. Third, different institutional pressures influence the institutionalization process in different phases. That process is influenced by differing institutional logic, and the perceptions and assumptions of senior managers about EA play important roles in EA adoption.The dissertation contributes to the literature by explaining what happens when organizations adopt EA. That is, it helps understand the problems, the institutional pressures in different phases of EA adoption, and the strategies for overcoming these challenges when organizations adopt EA. It also provides insights into the institutionalization process, when EA functionalities and features become the norms in practice. In addition, the research has implications for practice by providing several root causes of the problems and the different institutional features related to the stakeholders involved in the different phases of EA adoption. Furthermore, the study provides various legitimacy strategies that practitioners need to consider when they adopt EA. Even though there are similar strategies in organizations, they appear differently in practice. Finally, the study also identifies the importance of cognitive-cultural legitimacy for EA initiatives, meaning that EA practices depend on the stakeholders’ backgrounds, cultures, and characteristics.This dissertation is article-based and contains six peer-reviewed articles. The interpretive case study approach is used, and the empirical part of the study is based on four case studies at local government and ministerial levels within a country

    Fabrication and hardness of in-situ Al3Ti–Al2O3 composite

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    In this work, an in-situ Al3Ti–Al2O3 composite was optimally synthesized from raw powders via mechanical milling and conventional sintering processes. The strong influence of milling time on the promotion of the phase reaction between the initial TiO2 and Al materials was proven by using X-ray diffraction and surface morphology analysis. The obtained results showed that the milling process did not initiate any reaction between the raw TiO2 and Al materials. However, the milling process was important for creating a homogeneous powder mixture and refining the particle size of the powders. The Al3Ti–Al2O3 composites were completely formed after conventional sintering at 750°C for 30 min for a milling time of over 4 h. The highest obtained microhardness of the composite was approximately 130 HV, which was suggested to be related to the microstructure of the bulk composite specimen consisting of two main phases, the Al3Ti matrix and the Al2O3 particles dispersed in the matrix. A small portion of an unidentified phase, a Ti-rich compound, was found in the matrix together with a tiny fraction of AlTi3. We suggest that the optimal sintering process and mechanical milling are important key factors in fabricating bulk hardness Al3Ti–Al2O3 composite materials

    Rapid integrated assessment of food safety and nutrition related to pork consumption of regular consumers and mothers with young children in Vietnam

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    Pork is the most common and widely consumed meat product in Vietnam. The study aimed to assess nutrition and food safety risks and opportunities associated with pork value chains in Vietnam. Twenty-nine focus group discussions (FGD) were conducted in Hung Yen and Nghe An provinces with 164 participants who were both regular pork consumers and mothers with young children. In each province, three districts were selected, and in each district we selected one commune. To assess the quality of pork, we took 30 swab samples of pig carcasses at slaughterhouses, 90 pork samples at slaughterhouses and markets and analysed all samples for total bacterial count (TBC), coliforms, water holding capacity and pH. The results showed that pork was the main livestock product consumed and women are responsible for buying and preparing food for daily meals. Pork was the main animal sourced food (ASF) for Vietnamese consumers, for 50–60% of ASF. There was little knowledge of zoonotic diseases. The findings suggest further studies to address consumers’ concern on chemical contamination. Most market pork samples were not within the allowable range of limits standards of Vietnam for bacterial contamination: 90% of samples were above the official permissible limit for TBC and 98% did not meet standards for coliforms. Fifty percent of samples had acceptable pH but only 5% had acceptable water holding capacity. There were no significant differences in pork quality between intensifying Hung Yen and traditional Nghe An provinces, although there was a tendency for samples from Hung Yen to have better compliance. This rapid assessment revealed considerable interest and knowledge on pork nutrition and safety and found some behavioural but few quality and safety differences between traditional and intensifying systems. This indicated marketed pork is of low quality and safety, and a lack of support to consumers in making good choices

    Direct immobilization of DNA probes on non-modified plastics by UV irradiation and integration in microfluidic devices for rapid bioassay

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    DNA microarrays have become one of the most powerful tools in the field of genomics and medical diagnosis. Recently, there has been increased interest in combining microfluidics with microarrays since this approach offers advantages in terms of portability, reduced analysis time, low consumption of reagents, and increased system integration. Polymers are widely used for microfluidic systems, but fabrication of microarrays on such materials often requires complicated chemical surface modifications, which hinders the integration of microarrays into microfluidic systems. In this paper, we demonstrate that simple UV irradiation can be used to directly immobilize poly(T)poly(C)-tagged DNA oligonucleotide probes on many different types of plastics without any surface modification. On average, five- and fourfold improvement in immobilization and hybridization efficiency have been achieved compared to surface-modified slides with aminated DNA probes. Moreover, the TC tag only costs 30% of the commonly used amino group modifications. Using this microarray fabrication technique, a portable cyclic olefin copolymer biochip containing eight individually addressable microfluidic channels was developed and used for rapid and parallel identification of Avian Influenza Virus by DNA hybridization. The one-step, cost-effective DNA-linking method on non-modified polymers significantly simplifies microarray fabrication procedures and permits great flexibility to plastic material selection, thus making it convenient to integrate microarrays into plastic microfluidic systems

    Use of Oral Cholera Vaccines in an Outbreak in Vietnam: A Case Control Study

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    Simple measures such as adequate sanitation and clean water stops the spread of cholera; however, in areas where these are not available, cholera spreads quickly and may lead to death in a few hours if treatment is not initiated immediately. The use of life-saving rehydration therapy is the mainstay in cholera control, however, the rapidity of the disease and the limited access to appropriate healthcare units in far-flung areas together result in an unacceptable number of deaths. The WHO has recommended the use of oral cholera vaccines as a preventive measure against cholera outbreaks since 2001, but this was recently updated so that vaccine use may also be considered once a cholera outbreak has begun. The findings from this study suggest that reactive use of killed oral cholera vaccines provides protection against the disease and may be a potential tool in times of outbreaks. Further studies must be conducted to confirm these findings

    Drug-Related Problems in Coronary Artery Diseases

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    Coronary artery disease (CAD) remains the leading cause of mortality among cardiovascular diseases, responsible for 16% of the world’s total deaths. According to a statistical report published in 2020, the global prevalence of CAD was estimated at 1655 per 100,000 people and is predicted to exceed 1845 by 2030. Annually, in the United States, CAD accounts for approximately 610,000 deaths and costs more than 200 billion dollars for healthcare services. Most patients with CAD need to be treated over long periods with a combination of drugs. Therefore, the inappropriate use of drugs, or drug-related problems (DRPs), can lead to many consequences that affect these patients’ health, including decreased quality of life, increased hospitalization rates, prolonged hospital stays, increased overall health care costs, and even increased risk of morbidity and mortality. DRPs are common in CAD patients, with a prevalence of over 60%. DRPs must therefore be noticed and recognized by healthcare professionals. This chapter describes common types and determinants of DRPs in CAD patients and recommends interventions to limit their prevalence

    Chronic Obstructive Pulmonary Disease and Lung Cancer: Underlying Pathophysiology and New Therapeutic Modalities

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    Chronic obstructive pulmonary disease (COPD) and lung cancer are major lung diseases affecting millions worldwide. Both diseases have links to cigarette smoking and exert a considerable societal burden. People suffering from COPD are at higher risk of developing lung cancer than those without, and are more susceptible to poor outcomes after diagnosis and treatment. Lung cancer and COPD are closely associated, possibly sharing common traits such as an underlying genetic predisposition, epithelial and endothelial cell plasticity, dysfunctional inflammatory mechanisms including the deposition of excessive extracellular matrix, angiogenesis, susceptibility to DNA damage and cellular mutagenesis. In fact, COPD could be the driving factor for lung cancer, providing a conducive environment that propagates its evolution. In the early stages of smoking, body defences provide a combative immune/oxidative response and DNA repair mechanisms are likely to subdue these changes to a certain extent; however, in patients with COPD with lung cancer the consequences could be devastating, potentially contributing to slower postoperative recovery after lung resection and increased resistance to radiotherapy and chemotherapy. Vital to the development of new-targeted therapies is an in-depth understanding of various molecular mechanisms that are associated with both pathologies. In this comprehensive review, we provide a detailed overview of possible underlying factors that link COPD and lung cancer, and current therapeutic advances from both human and preclinical animal models that can effectively mitigate this unholy relationship
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