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61.
This paper presents new less conservative stability analysis conditions for Takagi–Sugeno fuzzy systems subject to interval time-varying delay. The methodology is based on the direct Lyapunov method allied with an appropriate Lyapunov–Krasovskii functional choice and the use of the integral inequalities, Finsler lemma, Newton–Leibniz formula manipulations and convex combination properties. Particularly, the main result differs from previous ones since the positiveness of the Lyapunov–Krasovskii functional is guaranteed by new relaxed conditions. Two examples illustrate the effectiveness of the proposed methodology. 相似文献
62.
Rebecca de Souza 《亚洲交流杂志》2013,23(4):477-493
Non-governmental organizations (NGOs) are deeply embedded within the socio-political landscape of India. NGOs were instituted by the Indian government specifically for the purpose of nation-building at the time of national independence in 1947 (Muttalib, 1987). In recent times however, NGOs have come under much scrutiny because of the expanding neoliberal agenda, and global discourse surrounding NGOs often involves questions of accountability. Communication scholars have studied NGOs in various contexts, but what remains unexplored is the question of how NGOs are portrayed within the media, which in contemporary society constitutes the public sphere or space of public opinion. It is important to look at the media because public legitimacy can have serious consequences for an NGO's ability to garner funds, influence policy, and build trust in beneficiary communities. This study thus asks the research question: How are NGOs framed in the Indian media? A qualitative analysis was employed to identify news frames or ‘interpretive packages’ used to talk about NGOs in two of the most widely-circulated English daily newspapers in India. The analysis identified four frames: the ‘do-good’ frame, protest frame, partner frame, and the public accountability frame. The findings show that, for the most part, NGOs are represented in a positive and even a nationalistic light, in spite of the larger global discourse interrogating NGO practices. The discussion elaborates on institutional, political, and historical reasons why NGOs are portrayed favorably in the newspapers. 相似文献
63.
Ana Paula Da Silva Azevedo Kátia Brandina Roberto Bianco Vitor Henrique De Oliveira Juliana Roque De Souza Bruno Mezencio 《Journal of sports sciences》2013,31(9):929-935
Abstract Twelve participants ran (9 km · h?1) to test two types of running shoes: replica and original shoes. Ground reaction force, plantar pressure and electromyographic activity were recorded. The shoes were tested randomly and on different days. Comparisons between the two experimental conditions were made by analysis of variance (ANOVA) test (P ≤ 0.05). The time to first peak, loading rate of the first peak and impulse of the first 75 ms of stance were significantly different between the shoes (P ≤ 0.05), revealing an increase of impact forces for the replica shoes. The peak plantar pressure values were significantly higher (P ≤ 0.05) when wearing replica shoes. During running, the contact area was significantly smaller (P ≤ 0.05) for the replica shoe. The electromyographic activity of the analysed muscles did not show changes between the two shoes in running. These findings suggest that the use of replica running shoes can increase the external load applied to the human body, but may not change the muscle activity pattern during locomotion. This new mechanical situation may increase the risk of injuries in these movements. 相似文献
64.
Ricardo Dantas de Lucas Fabrizio Caputo Kristopher Mendes de Souza AndrÉ Roberto Sigwalt Karina Ghisoni Paulo Cesar Lock Silveira 《Journal of sports sciences》2013,31(1):22-27
Whole-body bone mineral density and bone mineral mass in young adult rugby union players. 相似文献
65.
Alberto De Mello E Souza 《Higher Education》1991,21(2):223-233
The evolution of higher education in Brazil is described and proposals for its reform analysed. Enrollment growth in the 1970s favoured private institutions and most of the expansion was absorbed by private non-university establishments. The article next examines the financing of higher education in Brazil before turning to efficiency and equity issues. To improve the latter more students from low-income families must complete secondary education and have access to good-quality subsidized higher education. A system of loans and of scholarships for the needy is suggested for a system in which the inequity problems at higher education are a consequence of inefficiencies at the basic education level. 相似文献
66.
Kendra J. Thomas Josafá Moreira de Cunha Denise Americo de Souza Jonathan Santo 《教育心理学》2019,39(4):510-529
Recent research has established the importance of children and adolescents developing a growth mindset for future success and motivation. This research tests believes about fairness, adult trust, and school climate that are theoretically foundational for establishing a cognitive connection between effort and outcome. Regressions and MANOVAS were conducted to understand the direct and indirect relationships between perceptions of justice, adult trust, school climate and growth mindsets.
The first study included 363 children from Brazilian public schools and the findings supported our hypothesis that adult trust partially mediates the relationship between justice perceptions and growth mindset. The second study included an adolescent sample (n?=?497) from more diverse backgrounds and included a measure of institutional mindset. In this study, school fairness and solidarity mediated the relationship between perceptions of justice on institutional growth mindset. This research can help inform educators and researchers of other constructs necessary to foster a growth mindset. 相似文献
67.
Christiane de Souza Guerino Macedo Rafael Chagas Vicente Mauricio Donini Cesário 《Journal of sports sciences》2016,34(4):348-357
The purpose of this study was to evaluate the effects of cold-water immersion on the electromyographic (EMG) response of the lower limb and balance during unipodal jump landing. The evaluation comprised 40 individuals (20 basketball players and 20 non-athletes). The EMG response in the lateral gastrocnemius, tibialis anterior, fibular longus, rectus femoris, hamstring and gluteus medius; amplitude and mean speed of the centre of pressure, flight time and ground reaction force (GRF) were analysed. All volunteers remained for 20 min with their ankle immersed in cold-water, and were re-evaluated immediately post and after 10, 20 and 30 min of reheating. The Shapiro–Wilk test, Friedman test and Dunn’s post test (P < 0.05) were used. The EMG response values decreased for the lateral gastrocnemius, tibialis anterior, fibular longus and rectus femoris of both athletes and non-athletes (P < 0.05). The comparison between the groups showed that the EMG response was lower for the athletes. Lower jump flight time and GRF, greater amplitude and mean speed of centre of pressure were predominant in the athletes. Cold-water immersion decreased the EMG activity of the lower limb, flight time and GRF and increased the amplitude and mean speed of centre of pressure. 相似文献
68.
Maria do Carmo Galiazzi Diana Paula Salomão de Freitas Cleiva Aguiar de Lima Cláudia da Silva Cousin Moacir Langoni de Souza Rodrigo Launikas Cupelli 《Environmental Education Research》2018,24(10):1501-1513
AbstractThis article introduces the core concepts that emerged from five environmental education action research studies conducted by a group called Learning Communities in Environmental Education, Science and Mathematics (CEAMECIM) from the Universidade Federal do Rio Grande (FURG) in the south of Brazil. The studies focus on teacher education processes in learning communities involving teachers, researchers and environmental educators, and the critical writing and reading texts of classroom recordings to problematise participants’ teaching practices. CEAMECIM used action research cycles to examine narratives of educational action, narratives from teachers concerning their development as environmental educators, and narratives of their development of a sense of belonging, with a particular focus on critiquing social models that are based on hierarchies and individuality. From this analysis, we propose a new perspective on being and learning how to become a learning community, crystallised by the belief that ‘we are more when we are together’. 相似文献
69.
Marcelo C. Borba Aparecida Santana de Souza Chiari Helber Rangel Formiga Leite de Almeida 《Educational Studies in Mathematics》2018,98(3):269-286
For the last 10 years, online pre-service teacher distance education has increased significantly in Brazil. As a result, research on this educational modality has also increased, in particular, research investigating the different roles students and teachers play in these courses. The purpose of this paper is to analyze the role of digital technologies in two specific contexts: how teachers, tutors, and students play a role in producing interactive digital didactic material and how digital technologies themselves can play a role in teaching distance learning courses. But for these roles to emerge, we point to the need for participants of online courses to interact collaboratively. To identify these roles, grounded theory, a branch of qualitative research, was used as the two roles were articulated. Data were produced from virtual observations in virtual learning environments and virtual interviews. The results stress that both highlighted roles are related. They transform teacher and student roles and participation in the virtual classroom, and an “agency of media” emerges in online mathematics education. 相似文献
70.
Afzal Ahmad Benedicta D’Souza Charu Yadav Ashish Agarwal Anand Kumar M. Nandini Vivian D’Souza A. M. Poornima Nutan Kamath 《Indian journal of clinical biochemistry : IJCB》2016,31(4):480-482
Alstrom’s syndrome (AS) is a rare autosomal recessive ciliopathic condition affecting 1:10,00,000 children. It’s a single gene disorder of ALMS1 on chromosome 2 with multisystem involvement with cone-rod retinal dystrophy causing juvenile blindness, obesity, insulin resistance, type 2 Diabetes mellitus, hypogonadism and sensorineural hearing loss. Till now only 800 patients with this disorder has been identified so far. In this report, we describe the case of a 9-year old male boy from south India. He had been initially referred for polyphagia, polyuria, polydipsia, generalized weakness from 1 weeks. On examination he was demonstrated features suggestive of AS, including blindness, obesity, type 2 diabetes, altered lipid profile, hypogonadism, acanthosis nigricans, seborrheic dermatitis, right ear discharge and episodes of respiratory tract infections. So, diagnosis of AS is critical as it can easily be overlooked because of the many features associated with metabolic syndrome starting at age 7, a relatively early age. 相似文献