1,203 research outputs found
A Mobilidade Acadêmico como processo de internacionalização. O Modelo da Universidade Federal de Alfenas – MG
O CONGRESSO DE INTERNACIONALIZAÇÃO DA EDUCAÇÃO SUPERIOR – CIES 2019 é um evento in-
ternacional, que reúne professores, pesquisadores e estudantes de graduação e pós-graduação para
divulgar a produção científica no campo da Internacionalização do Ensino Superior e fortalecer a
cooperação internacional entre diferentes instituições de ensino e grupos de pesquisa no âmbito do
MERCOSUL.
A iniciativa é fruto de uma parceria entre pesquisadores da Universidade Federal da Integra-
ção Latino-Americana (UNILA - Brasil), a Universidad Nacional del Litoral (UNL - Argentina), a Uni-
versidad Nacional de Asunción (UNA - Paraguay) e a Universidad de la República (UDeLaR - Uru-
guay), que atuam em projetos vinculados ao Setor Educacional do MERCOSUL, no Núcleo de Estudos
e Investigações em Educação Superior.
O evento será realizado nos dias 4, 5 e 6 de Setembro de 2019 no campus PTI da UNILA, dentro
do Parque Tecnológico da Usina Hidrelétrica de Itaipu, na cidade de Foz do Iguaçu, Paraná, Brasil.
A UNILA, sede do evento, é uma universidade temática criada em 2010 pelo governo federal
do Brasil com a missão institucional de formar recursos humanos aptos a contribuir com a integra-
ção latino-americana, com o desenvolvimento regional e com o intercâmbio cultural, científico e
educacional da América Latina, especialmente no MERCOSUL. Sua finalidade, portanto, é conver-
ter-se em um espaço de encontros, de trocas e de aprendizagem mútua, que reforçam o compro-
misso em prol da pertinência, da excelência e da construção sustentável de um mundo melhor.A Internacionalização no ensino superior é tão antiga, quanto a própria universidade. Primeiras
ideias sobre esse processo, teve início em Salamanca, Reino da Espanha, no século XII. No início,
era algo particular, no qual dependia muito do interesse de cada docente, sua ligação, direta ou
não com Vaticano. A medida que o pensamento universitário foi se desenvolvendo, cada área
começou a demostrar um viés mais favorável a essas manifestações. Muitos estudantes, oriundos
da pequena nobreza ou burguesia, querendo alcançar patamares sociais mais elevados,
estudavam nesses centros, tendo contatos com pensadores muçulmanos, cristãos e judeus, que
ajudaram a fortalecer o pensamento científico, principalmente no século XVIII.
No Brasil, apesar da ideia de Universidade ter nascido no século XIX, foi na década de 1930,
durante Período Vargas, com a criação da Universidade de São Paulo, que esse processo tem uma
mudança efetiva. Com a falta de profissionais qualificados, Vargas convidou professores
estrangeiros, sua maioria franceses, para ministrar aulas nos cursos criados na USP. História, por
exemplo, foi um desses cursos, que contou com a presença de Fernand Braudel que, anos mais
tarde, seria diretor da EHESS , École des Hautes Études em Sciences Sociales.Núcleo de Estudios e Investigaciones en Educación Superior del Mercosur - NUCLEO
Grupo Interdisciplinar de Pesquisa em Educação na América Latina – EducAL/UNILA
Instituto Mercosul de Estudos Avançados – IMEA/UNILA
Pró-Reitoria de Relações Institucionais e Internacionais – PROINT/UNIL
Pursuing sustainability for the Brazilian lobster, Panulirus argus, fishery from the bottom-up
Use of passive acoustics to map Grouper spawning aggregations, with emphasis on Red Hind, Epinephelus guttatus, off western Puerto Rico
Núcleos de pesquisa na escola: Possibilidades de mudanças didácticas e práticas de ensino dos professores
Este trabajo presenta resultados de las primeras producciones curriculares de profesores de Educación Básica después de la implantación de Centros de Investigación en la Escuela (NPE), un proyecto piloto que pretende estimular el desarrollo de contenidos escolares a través de una situación de estudio (ES). Asociaciones con la universidad a través de un grupo de investigación - Grupo de Educación Química en Producción Curricular (GEQPC) - presentan potencial teórico-metodológico capaz de apuntar nuevos abordajes curriculares. Este trabajo tuvo como objetivo identificar en las narrativas de los profesores evidencias de cambios en sus prácticas de enseñanza cuando participan de la NPE en la escuela y son acompañados por el grupo de investigación GEQPC. Se presentan los primeros resultados que indican que el NPE es fundamental en los cambios didácticos y en las prácticas de enseñanza de los profesoresThis work presents results of the first curricular productions of Basic Education teachers after the implementation of Research Centers in School (NPE), a pilot project that aims to stimulate the development of school contents through a study situation (SE). Partnerships with the university through a research group - Group of Chemical Education in Curricular Production (GEQPC) - present theoretical and methodological potential capable of pointing out new curricular pproaches. This work aimed to identify in teachers' narratives evidence of changes in their teaching practices when they participate in NPE at school and they are accompanied by the GEQPC research group. We present the first results that indicate NPE is fundamental in the didactic changes and teaching practices of teacher
Impact of Blood Pressure Cuff Inflation Rates on Flow-Mediated Dilatation and Contralateral Arm Response
Flow-mediated dilatation (FMD) is widely used as an index of nitric oxide-mediated vasodilator function, yet its methodology has not been well established. Previous research indicates that rapid inflations of a blood pressure cuff evoke systemic vasoconstriction as it was observed on non-occluded contralateral arm. This would potentially contribute to the well-known variability of FMD readings and could complicate the emerging evidence that non-occluded contralateral arm responses during the FMD procedure is associated with the presence of coronary artery disease. Purpose: To test the hypotheses that fast inflation of a blood pressure cuff could reduce FMD values and influence contralateral vasodilatory states. Method: Thirty-three apparently healthy adults (18 males and 15 females, 29±6 years) were studied in two randomized FMD trials. The blood flow-occluding cuff was inflated fast (\u3c1s with a Hokanson rapid cuff inflation\u3edevice) in one trial or slow (over a period of 10s) in the other during the FMD procedure. Arterial diameter, fingertip temperature, and infrared thermal images were obtained throughout each session. Results: FMD values were not different between the fast and slow cuff inflation trials (5.9±0.6% vs. 5.9±0.4%). There were no differences in fingertip temperature rebound between the trials (1.8±0.3 vs. 1.9±0.3oC). The infrared thermal imaging revealed greater reductions in hand and finger temperature as well as more variable responses in the contralateral arm when the cuff was inflated more rapidly. Conclusion: Rates to inflate a blood pressure cuff do not appear to affect FMD readings although a fast cuff occlusion would evoke greater neurovascular changes in the non-occluded contralateral arm
Inspiratory resistance decreases limb blood flow in COPD patients with heart failure
Hosp Clin Porto Alegre, Exercise Pathophysiol Res Lab, BR-90035007 Porto Alegre, RS, BrazilHosp Clin Porto Alegre, Div Cardiol, BR-90035007 Porto Alegre, RS, BrazilSerra Gaucha Coll, Phys Therapy Dept, Caxias Do Sul, RS, BrazilHosp Clin Porto Alegre, Pulmonary Div, Porto Alegre, RS, BrazilFed Univ Rio Grande, Fac Med, Dept Med, Porto Alegre, RS, BrazilUniversidade Federal de São Paulo, Dept Med, Div Resp Dis, Pulmonary Funct & Clin Exercise Physiol Unit, São Paulo, BrazilQueens Univ, Dept Med, Div Respirol, LACEP, Kingston, ON, CanadaKingston Gen Hosp, Kingston, ON K7L 2V7, CanadaUniversidade Federal de São Paulo, Dept Med, Div Resp Dis, Pulmonary Funct & Clin Exercise Physiol Unit, São Paulo, BrazilWeb of Scienc
Challenging thermodynamics: hydrogenation of benzene to 1,3- cyclohexadiene by Ru@Pt nanoparticles
Since the earliest reports on catalytic benzene hydrogenation, 1,3-cyclohexadiene and cyclohexene have been proposed as key intermediates. However, the former has never been obtained with remarkable selectivity. Herein we report the first partial hydrogenation of benzene towards 1,3 cyclohexadiene under mild conditions in a catalytic biphasic system consisting of Ru@Pt nanoparticles (NPs) in ionic liquid (IL). The tandem reduction of [Ru(COD)(2-methylallyl)2] (COD = 1,5 cyclooctadiene) followed by decomposition of [Pt2(dba)3] (dba = dibenzylideneacetone) in 1-nbutyl- 3 methylimidazolium hexafluorophosphate (BMI.PF6) IL under hydrogen affords core-shell Ru@Pt NPs of 2.9 ± 0.2 nm. The hydrogenation of benzene (60 ºC, 6 bar of H2) dissolved in nheptane by these bimetallic NPs in BMI.PF6 affords 1,3- cyclohexadiene in unprecedented 21% selectivity at 5% benzene conversion. On opposition, almost no 1,3-cyclohexadiene was observed using monometallic Pt(0) or Ru(0) NPs under the same reaction conditions and benzene conversions. The study reveals that the selectivity is related to synergetic effects of the bimetallic composition of the catalyst material as well as the performance under biphasic reaction conditions. It is proposed that colloidal metal catalysts in ILs and under multiphase conditions (“dynamic asymmetric mixture”) can operate far from the thermodynamic equilibrium akin to chemically active membranes
Interferential electrical stimulation improves peripheral vasodilatation in healthy individuals
BACKGROUND:Interferential electrical stimulation (IES), which may be linked to greater penetration of deep tissue, may restore blood flow by sympathetic nervous modulation; however, studies have found no association between the frequency and duration of the application and blood flow. We hypothesized that 30 min of IES applied to the ganglion stellate region might improve blood flow redistribution.OBJECTIVES:The purpose of this study was to determine the effect of IES on metaboreflex activation in healthy individuals.METHOD:Interferential electrical stimulation or a placebo stimulus (same protocol without electrical output) was applied to the stellate ganglion region in eleven healthy subjects (age 25±1.3 years) prior to exercise. Mean blood pressure (MBP), heart rate (HR), calf blood flow (CBF) and calf vascular resistance (CVR) were measured throughout exercise protocols (submaximal static handgrip exercise) and with recovery periods with or without postexercise circulatory occlusion (PECO+ and PECO -, respectively). Muscle metaboreflex control of calf vascular resistance was estimated by subtracting the area under the curve when circulation was occluded from the area under the curve from the AUC without circulatory occlusion.RESULTS:At peak exercise, increases in mean blood pressure were attenuated by IES (p<0.05), and the effect persisted under both the PECO+ and PECO- treatments. IES promoted higher CBF and lower CVR during exercise and recovery. Likewise, IES induced a reduction in the estimated muscle metaboreflex control (placebo, 21±5 units vs. IES, 6±3, p<0.01).CONCLUSION:Acute application of IES prior to exercise attenuates the increase in blood pressure and vasoconstriction during exercise and metaboreflex activation in healthy subjects.Coordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES)Conselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq)FIPE-HCPA, Porto Alegre, BrazilUniversidade Federal de São Paulo (UNIFESP) Cardiovascular Surgery DepartmentHospital de Clinicas de Porto AlegreUniversidade de Brasilia Physical Therapy DepartmentUNIFESP, Cardiovascular Surgery DepartmentSciEL
The “Hypertension Approaches in the Elderly: a Lifestyle study” multicenter, randomized trial (HAEL Study): rationale and methodological protocol
Background: Hypertension is a clinical condition highly prevalent in the elderly, imposing great risks to
cardiovascular diseases and loss of quality of life. Current guidelines emphasize the importance of
nonpharmacological strategies as a first-line approach to lower blood pressure. Exercise is an efficient lifestyle tool
that can benefit a myriad of health-related outcomes, including blood pressure control, in older adults. We herein
report the protocol of the HAEL Study, which aims to evaluate the efficacy of a pragmatic combined exercise
training compared with a health education program on ambulatory blood pressure and other health-related
outcomes in older individuals.
Methods: Randomized, single-blinded, multicenter, two-arm, parallel, superiority trial.
A total of 184 subjects (92/center), ≥60 years of age, with no recent history of cardiovascular events, will be
randomized on a 1:1 ratio to 12-week interventions consisting either of a combined exercise (aerobic and
strength) training, three times per week, or an active-control group receiving health education intervention,
once a week. Ambulatory (primary outcome) and office blood pressures, cardiorespiratory fitness and
endothelial function, together with quality of life, functional fitness and autonomic control will be measured
in before and after intervention.
Discussion: Our conceptual hypothesis is that combined training intervention will reduce ambulatory blood
pressure in comparison with health education group. Using a superiority framework, analysis plan prespecifies
an intention-to-treat approach, per protocol criteria, subgroups analysis, and handling of missing data. The
trial is recruiting since September 2017. Finally, this study was designed to adhere to data sharing practices.
Trial registration: NCT03264443. Registered on 29 August, 2017
Exercise to preserve β-cell function in recent-onset Type 1 diabetes mellitus (EXTOD) - a randomized controlled pilot trial
AIM:
Residual β-cell function is present at the time of diagnosis with Type 1 diabetes. Preserving this β-cell function reduces complications. We hypothesized that exercise preserves β-cell function in Type 1 diabetes and undertook a pilot trial to address the key uncertainties in designing a definitive trial to test this hypothesis.
METHODS:
A randomized controlled pilot trial in adults aged 16-60 years diagnosed with Type 1 diabetes within the previous 3 months was undertaken. Participants were assigned to control (usual care) or intervention (exercise consultation every month), in a 1 : 1 ratio for 12 months. The primary outcomes were recruitment rate, drop out, exercise adherence [weeks with ≥ 150 min of self-reported moderate to vigorous physical activity (MVPA)], and exercise uptake in the control group. The secondary outcomes were differences in insulin sensitivity and rate of loss of β-cell function between intervention and control at 6 and 12 months.
RESULTS:
Of 507 individuals who were approached, 58 (28 control, 30 intervention) entered the study and 41 completed it. Participants were largely white European males, BMI 24.8 ± 3.8 kg/m2 , HbA1c 75 ± 25 mmol/mol (9 ± 2%). Mean level of objectively measured MVPA increased in the intervention group (mean 243 to 273 min/week) and 61% of intervention participants reached the target of ≥ 150 min/week of self-reported MVPA on at least 42 weeks of the year. Physical activity levels fell slightly in the control group (mean 277 to 235 min of MVPA/week). There was exploratory evidence that intervention group became more insulin sensitive and required less insulin. However, the rate of loss of β-cell function appeared similar between the groups, although the change in insulin sensitivity may have affected this.
CONCLUSION:
We show that it is possible to recruit and randomize people with newly diagnosed Type 1 diabetes to a trial of an exercise intervention, and increase and maintain their exercise levels for 12 months. Future trials need to incorporate measures of greater adherence to exercise training targets, and include more appropriate measures of β-cell function
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