75 research outputs found

    Internacionalização Indígena: Visões de mundo indígenas, ensino superior e universidades tribais

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    This article examines the role of Indigenous knowledges in higher education through an exploration of internationalization at U.S. Tribal Colleges and Universities (TCUs). We affirm that examining internationalization efforts with historically marginalized and underserved populations provides an opportunity for interrogating inequitable power dynamics in knowledge construction, production, and transference vis-à-vis education and within a Western hegemonic model of modernity. Our discussion is anchored in decoloniality and Indigenous sustainable self-determination, which highlight educational initiatives that bolster Indigenous identities while addressing social, political, and environmental complications created by coloniality. Drawing from a five-year mixed-methods case study with TCUs, we offer Indigenous perspectives on place-based higher educational initiatives in relation to local and global concerns, specifically human and ecological sustainability. We propose a critical lens in Indigenous internationalization wherein Indigenous worldviews are vital responses to dominant notions of internationalization and historical limitations of education for Indigenous peoples.Este artículo examina el papel de los conocimientos Indígenas en la enseñanza superior por medio de internacionalización en universidades tribales en los Estados Unidos. Las investigaciones sobre internacionalización con gente Indígena nos dan la oportunidad de interrogar desigualdades y la inequidad de poder en la construcción, producción, y transferencia del saber, el cual está dominado por occidente y el discurso de la modernidad. Nuestra discusión está basada en la decolonialidad del poder y la autodeterminación Indígena cuyas teorías iluminan iniciativas que refuerzan las identidades Indígenas y, al mismo tiempo, combaten problemas sociales, políticos y ecológicos creados por el colonialismo. A partir de un estudio de caso de métodos mixtos llevado a cabo por cinco años con TCU, ofrecemos perspectivas indígenas sobre iniciativas de educación superior basadas en el territorio y que apuntan a preocupaciones locales y globales, específicamente de sostenibilidad humana y ecológica. Proponemos un lente crítico que denominados internacionalización indígena en educación superior que se centra en las cosmovisiones indígenas y que intentan corregir los límites de la propagación del movimiento global de internacionalización dominante.Este artigo examina o papel do conhecimento indígena no ensino superior através da internacionalização em universidades tribais nos Estados Unidos. A pesquisa sobre internacionalização com povos indígenas nos dá a oportunidade de interrogar as desigualdades e a desigualdade de poder na construção, produção e transferência de conhecimento, que é dominado pelo Ocidente e pelo discurso da modernidade. Nossa discussão baseia-se na descolonialidade do poder e na autodeterminação indígena, cujas teorias iluminam iniciativas que reforçam identidades indígenas e, ao mesmo tempo, combatem problemas sociais, políticos e ecológicos criados pelo colonialismo. Com base em um estudo de caso de métodos mistos realizado por cinco anos com o TCU, oferecemos perspectivas indígenas sobre iniciativas de ensino superior com base territorial que apontam para preocupações locais e globais, especificamente a sustentabilidade humana e ecológica. Propomos uma lente crítica que é denominada internacionalização indígena no ensino superior, que enfoca as visões de mundo indígenas e que tenta corrigir os limites da propagação do movimento global de internacionalização dominante

    Bio-SimVerb and Bio-SimLex: wide-coverage evaluation sets of word similarity in biomedicine.

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    Background: Word representations support a variety of Natural Language Processing (NLP) tasks. The quality of these representations is typically assessed by comparing the distances in the induced vector spaces against human similarity judgements. Whereas comprehensive evaluation resources have recently been developed for the general domain, similar resources for biomedicine currently suffer from the lack of coverage, both in terms of word types included and with respect to the semantic distinctions. Notably, verbs have been excluded, although they are essential for the interpretation of biomedical language. Further, current resources do not discern between semantic similarity and semantic relatedness, although this has been proven as an important predictor of the usefulness of word representations and their performance in downstream applications. Results: We present two novel comprehensive resources targeting the evaluation of word representations in biomedicine. These resources, Bio-SimVerb and Bio-SimLex, address the previously mentioned problems, and can be used for evaluations of verb and noun representations respectively. In our experiments, we have computed the Pearson’s correlation between performances on intrinsic and extrinsic tasks using twelve popular state-of-the-art representation models (e.g. word2vec models). The intrinsic–extrinsic correlations using our datasets are notably higher than with previous intrinsic evaluation benchmarks such as UMNSRS and MayoSRS. In addition, when evaluating representation models for their abilities to capture verb and noun semantics individually, we show a considerable variation between performances across all models. Conclusion: Bio-SimVerb and Bio-SimLex enable intrinsic evaluation of word representations. This evaluation can serve as a predictor of performance on various downstream tasks in the biomedical domain. The results on Bio-SimVerb and Bio-SimLex using standard word representation models highlight the importance of developing dedicated evaluation resources for NLP in biomedicine for particular word classes (e.g. verbs). These are needed to identify the most accurate methods for learning class-specific representations. Bio-SimVerb and Bio-SimLex are publicly available

    Consumer E-Service Evaluation in Hong Kong Online Music Subscription Service Industry

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    This study investigates into factors affecting the success of E-service using a research model grounded on the Updated DeLone and McLean Information System Success Model (DeLone & McLean, 2003). Fourteen factors originated from four constructs, i.e., system quality, information quality, service quality, and vendor dimensions, are included in our research model. Using the online music subscription industry in Hong Kong as the platform of our investigation, we examine the associations between these four constructs and customer preference in the online music subscription service industry in Hong Kong. We collected data from 135 college students from Hong Kong to test our model using the Analytical Hierarchy Process (AHP). We show that each E-business success construct in our model has different levels of importance in E-service success in the online music subscription service industry. Our findings provide decision makers of E-business firms with useful insights to enhance their E-service quality

    Select pyrimidinones inhibit the propagation of the malarial parasite, Plasmodium falciparum

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    Plasmodium falciparum, the Apicomplexan parasite that is responsible for the most lethal forms of human malaria, is exposed to radically different environments and stress factors during its complex lifecycle. In any organism, Hsp70 chaperones are typically associated with tolerance to stress. We therefore reasoned that inhibition of P. falciparum Hsp70 chaperones would adversely affect parasite homeostasis. To test this hypothesis, we measured whether pyrimidinone-amides, a new class of Hsp70 modulators, could inhibit the replication of the pathogenic P. falciparum stages in human red blood cells. Nine compounds with IC50 values from 30 nM to 1.6 μM were identified. Each compound also altered the ATPase activity of purified P. falciparum Hsp70 in single-turnover assays, although higher concentrations of agents were required than was necessary to inhibit P. falciparum replication. Varying effects of these compounds on Hsp70s from other organisms were also observed. Together, our data indicate that pyrimidinone-amides constitute a novel class of anti-malarial agents. © 2009 Elsevier Ltd. All rights reserved

    Multiscale characterization of the 3D network structure of metal carbides in a Ni superalloy by synchrotron X-ray microtomography and ptychography

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    Synchrotron X-ray microtomography and ptychography were used to characterize the 3D network structure, morphology and distribution of metal carbides in an as-cast IN713LC Ni superalloy. MC typed carbides were found to distribute mainly on the grain boundary between the matrix γ and γ' phase. The differences in solidification cooling rate had a minor influence on the volume fraction of the MC type carbides, but significantly affected the carbide size, distribution and network morphology. Depending on the local composition of the remaining liquid phase and geometric constraints, the carbides can form either spherical or strip or network morphologies. The research demonstrated clearly the advantage and technical potential of using the two complementary tomography techniques synergistically to characterize non-destructively complex multiple-phase structures in three dimensional space with a spatial resolution of ~30 nm

    Let me entertain you: the ambivalent role of university lecturers as educators and performers

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    In England, higher education is more marketised than ever before as the difference between students and consumers is increasingly blurred, propelled by the rise in tuition fees. With students demanding more for their money, the role of university lecturers continues to change. This study explores the ways in which lecturers re-evaluate and reconstruct their roles and responsibilities in light of heightened student expectations. We draw on 30 in-depth interviews with lecturers from the social sciences, across two post-1992 universities in England, where tuition fees have tripled since 2012. We focus on lecturers’ views and experiences of student expectations, as well as the support available to students as we shift towards a more consumerist approach in higher education. We find examples of tension between academic values and consumeristic student expectations as lecturers discuss their precarious positions as an educator as well as an entertainer. We believe that the expanding role of lecturers merits an urgent review at the institutional and national level, to promote and ensure clarity of the boundaries and expectations of teaching staff
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