3,826 research outputs found

    Integrating Porous Resins In Enzymatic Processes

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    An Efficient Partial-Order Characterization of Admissible Actions for Real-Time Scheduling of Sporadic Tasks

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    In many scheduling problems involving tasks with multiple deadlines, there is typically a large degree of flexibility in determining which tasks to serve at each time step. Given a cost function it is often possible to cast a scheduling problem as an optimization problem to obtain the most suitable schedule. However, in several applications, especially when the schedule has to be computed in-line or periodically adjusted, the cost function may not be completely known a priori but only partially. For example, in some applications only the cost of the current allocation of resources to the tasks could be available. Under this scenario, a sensible approach is to optimally allocate resources without compromising the schedulability of the tasks. This work follows this approach by introducing a notion of partial ordering on the set of feasible schedules. This partial ordering is particularly useful to characterize which allocations of resources at the current time preserve the feasibility of the problem in the future. This enables the realization of fast algorithms for real-time scheduling. The model and algorithm presented can be utilized in different applications such as electric vehicle charging, cloud computing and advertising on websites. [1

    The Relationship between Federal Citizenship and Immigration Policies and the Internationalization of Higher Education in Canada

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    Using Actor-Network Theory (ANT) as a way to do Critical Policy Analysis (CPA), this instrumental case study explores the relationships between citizenship and immigration (CI) policies and the internationalization of Canadian higher education. By utilizing a critical-sociomaterial approach, the research exposes actors and actor-networks that are otherwise overlooked in these policy areas. Moreover, this lens underscores the impacts and consequences of policy and how the enrollment and/or exclusion of actors in actor-networks enables certain actors to exert control, power, and primacy over others. While most research on internationalization identifies the academy as the site for internationalization policy enactment, this research notes that the policy topology is spread across various levels of governance and transcends the university into both provincial and federal spaces. The findings suggest that Canada’s CI policies, along with its regulations make it difficult for university administrators to internationalize their institutions, with respect to recruiting, supporting, and retaining international students. International students, who want to immigrate to Canada post-graduation, highlighted that they found federal CI legislation confusing. They experienced both emotional and financial stress because of systemic barriers within the government-sponsored pathways to Canadian permanent residency. They see Canada as a less attractive place to study, expressed that they feel unwelcome, warned that restrictive CI legislation will hinder Canada’s ability to attract prospective international students, and also retain Canadian-trained talent. The analysis reveals three complex, interconnected, and at times, competing assemblages of human and non-human actors enrolled in Canada’s CI and internationalization policies. Through their connections, these actor-networks help the government emerge as a powerful actor in Canadian public policy. By redefining its relationship with provinces and universities, the federal government enrolls the academy in technocratic ways to regulate the flow of international students. This research also highlights the powerful role that special interest groups (SIGs) play in these policy assemblages and their role in connecting CI and internationalization policies. Moreover, the study underscores interdepartmental policy misalignments within the federal government with respect to CI, internationalization, and labour policies. These controversies highlight competing narratives of what is important for the Canadian economy and the value of international students. While most research on internationalization identifies the academy as the site for internationalization policy enactment, this research notes that the policy topology is spread across various levels of governance and transcends the university into both provincial and federal spaces. The findings suggest that Canada’s CI policies, along with its regulations make it difficult for university administrators to internationalize their institutions, with respect to recruiting, supporting, and retaining international students. International students, who want to immigrate to Canada post-graduation, highlighted that they found federal CI legislation confusing. They experienced both emotional and financial stress because of systemic barriers within the government-sponsored pathways to Canadian permanent residency. They see Canada as a less attractive place to study, expressed that they feel unwelcome, warned that restrictive CI legislation will hinder Canada’s ability to attract prospective international students, and also retain Canadian-trained talent. The analysis reveals three complex, interconnected, and at times, competing assemblages of human and non-human actors enrolled in Canada’s CI and internationalization policies. Through their connections, these actor-networks help the government emerge as a powerful actor in Canadian public policy. By redefining its relationship with provinces and universities, the federal government enrolls the academy in technocratic ways to regulate the flow of international students. This research also highlights the powerful role that special interest groups (SIGs) play in these policy assemblages and their role in connecting CI and internationalization policies. Moreover, the study underscores interdepartmental policy misalignments within the federal government with respect to CI, internationalization, and labour policies. These controversies highlight competing narratives of what is important for the Canadian economy and the value of international students

    Higher Education Leadership and the Internationalization Imaginary: Where Personal Biography Meets the Socio-Historical

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    In this chapter, we explore how higher education institution (HEI) leaders perceive the relationship between their international background and their commitment to and vision for internationalization. Our 10 Canadian HEI participants thought there was a direct link between their international backgrounds and commitment to internationalization. While all spoke of the benefits of internationalization, some viewed internationalization through an ethical, socio-cultural lens whereas others privileged internationalization’s instrumental values. We point to tensions facing some leaders in reconciling their ideal visions of internationalization with neoliberal pressures facing HEIs in a global era. We demonstrate the importance of attending to the inter-relationships between broader socio-historical drivers of internationalization and the personal biographies of those charged with advancing internationalization agendas. Our findings lead us to develop a new theoretical concept, which we term the ‘internationalization imaginary’, to understand the interplay between the individual, local, national and global forces shaping internationalization in higher education

    Perception of muslim consumers towards tax deduction through Zakat in malaysia: an empirical investigation on muslims in Malaysia

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    The aim of this study is to explore the factors which are affecting Muslim consumers‟ perception towards tax deduction through zakat in Malaysia. A conceptual framework was drawn based on the literature. Six factors were extracted through principal component analysis and SEM was run to test the hypotheses. This research found that halal-haram aspect of Islamic Shariah has a very positive influence on Muslim consumers‟ perception towards the tax rebate system. In addition, legal consciousness and knowledge about tax and zakat have positive significant impact on Muslim consumers‟ perceptions towards this system. Due to the limited literature available on this subject matter, this study offers unique findings that may help in capitalizing the practices in Muslim countries and to understand their consumers‟ perception regarding the tax deduction system. In conclusion zakat institutions in Malaysia will also be better benefitted through this research finding. Keywords: Muslim Consumer, Perception, Tax deduction through Zaka

    A Modified Medical Education Research Study Quality Instrument (MMERSQI) developed by Delphi consensus

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    BACKGROUND: The Medical Education Research Study Quality Instrument (MERSQI) is widely used to appraise the methodological quality of medical education studies. However, the MERSQI lacks some criteria which could facilitate better quality assessment. The objective of this study is to achieve consensus among experts on: (1) the MERSQI scoring system and the relative importance of each domain (2) modifications of the MERSQI. METHOD: A modified Delphi technique was used to achieve consensus among experts in the field of medical education. The initial item pool contained all items from MERSQI and items added in our previous published work. Each Delphi round comprised a questionnaire and, after the first iteration, an analysis and feedback report. We modified the quality instruments’ domains, items and sub-items and re-scored items/domains based on the Delphi panel feedback. RESULTS: A total of 12 experts agreed to participate and were sent the first and second-round questionnaires. First round: 12 returned of which 11 contained analysable responses; second-round: 10 returned analysable responses. We started with seven domains with an initial item pool of 12 items and 38 sub-items. No change in the number of domains or items resulted from the Delphi process; however, the number of sub-items increased from 38 to 43 across the two Delphi rounds. In Delphi-2: eight respondents gave ‘study design’ the highest weighting while ‘setting’ was given the lowest weighting by all respondents. There was no change in the domains’ average weighting score and ranks between rounds. CONCLUSIONS: The final criteria list and the new domain weighting score of the Modified MERSQI (MMERSQI) was satisfactory to all respondents. We suggest that the MMERSQI, in building on the success of the MERSQI, may help further establish a reference standard of quality measures for many medical education studies. SUPPLEMENTARY INFORMATION: The online version contains supplementary material available at 10.1186/s12909-023-04033-6

    Food and feeding habit of chapila (Gudusia chapra)

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    Abundance of diatom (Bacillariophyceae) in the plankton population and the dietary role of it in chapila (Gudusia chapra) in pond were studied. A total of 25 genera of phytoplankton belonging to Bacillariophyceae (7), Chlorophyceae (11), Cyanophyceae (5) and Euglenophyceae (2) and 9 genera of zooplankton belonging to Crustacea (3) and Rotifera (6) were recorded from the water. Among the phytoplankton, highest abundance of Chlorophyceae was observed, and Bacillariophyceae, Cyanophyceae and Euglenophyceae ranked the second, third and fourth position in the planktonic population, respectively. Among the zooplankton, Rotifera was recorded as the most dominant group and Crustacea as the least one. From the gut content analysis, 4 groups of phytoplankton consisting of 33 genera of plankton were identified and recoded [sic] of which 25 belonging to phytoplankton and 8 belonging to zooplankton. This study reveals that the Chlorophyceae and Cyanophyceae were the most dominant food items of chapila. Bacillariophyceae (diatom) and Euglenophyceae were less important and Crustacea and Rotifera were the least important in the diet of Chapila. The present investigation showed that chapila appeared to be a plankton feeder with a preference for phytoplankton to zooplankton. Electivity analysis showed that the fish avoided zooplankton and strongly selected phytoplankton. In the gut contents of fish, Chlorophyceae was positively and Bacillariophyceae (diatom) was negatively selected throughout the experimental period, in the pond water
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