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Low intensity training improves redox status and reduces collagen fibers on dystrophic muscle
Danielle Cristina Fernandes,Jessica Junia A. Cardoso-Nascimento,Bruna Caroline C. Garcia,Karine Beatriz Costa,Etel Rocha-Vieira,Murilo Xavier Oliveira,Alex Sander D. Machado,Ana Paula Santos,Thaís Pei 한국운동재활학회 2019 JER Vol.15 No.2
Larissa Costa Zorzanelli,Elaine Cristina L. Pereira,Layz Mata Salimena,Elen B. A. Vasques Pacheco,Antonio Henrique Monteiro F. T. Silva,Luiz Carlos Bertolino,Milton B. Bastos,Ana Maria F. de Sousa,Ana 한국섬유공학회 2023 Fibers and polymers Vol.24 No.1
In the present research, high-density polyethylene (HDPE) and polyester, poly(ethylene terephthalate) (PET), residue fromplatforms offshore, were blended in the presence of a coupling agent, a polyethylene-grafted maleic anhydride (HDPE-g-MA). The HDPE/HDPE-g-MA/PET blends were processed by melt mixing in a twin-screw extruder, using a factorial design. Theprocessing conditions were set so that the PET remained in the fiber shape in the melt. The effect of a nanoclay, montmorilloniteclay (MMT), in the blends as co-compatibilizer was evaluated by mechanical, rheological, thermal and morphologicalanalyses. The results showed that there is an interaction between PET fibers and MMT nanoclay. The yield properties(stress and strain) decreased with the addition of PET fibers. Young’s modulus and stress at break property increased withhigh PET fibers and MMT contents. An interaction between PET and MMT contents was also observed on the maximumdegradation temperature (TMÁX): the compositions with higher PET and MMT contents showed a higher thermal stability. The rheological results showed that a more pronounce solid-like behavior was achieved when MMT was added in the HDPE/HDPE-g-MA/PET blend. These results indicate that MMT nanoclay has potential as co-compatibilizer in HDPE/HDPE-g-MA/PET blends. This was due to its preferential localization in the PET fiber domains and interphase between HDPE andPET, as showed in SEM analysis.
Climate projections and downscaling techniques: a discussion for impact studies in urban systems
Marek Smid,Ana Cristina Costa 서울시립대학교 도시과학연구원 2018 도시과학국제저널 Vol.22 No.3
Urban systems are not only major drivers of climate change but also the impact hotspots. In the context of the planet currently undergoing a process of greenhouse warming, and simultaneously predominantly urban based ever continuing population growth, our agglomerations became vulnerable to chain reactions triggered by climate related hazards. Hence, the reliable and cost-effective assessment of future impact is of high importance. While the climate community has invested significant effort to provide downscaling techniques yielding localized information on future climate extreme behaviours, these methods do not remain widely exploited in the process of urban planning. In this work, we discuss the underlying reasons and main challenges of the applicability of downscaling procedures in the real process of urban planning. This paper attempts to help bridge the gap between the communities of urban planners and climatology. In the beginning, we summarize the rationale for such cooperation, supporting the argument that the scale represents an important linkage between urbanistic and climate science in the process of designing an urban space. Secondly, we introduce the main families of downscaling techniques and their application on climate projections, also providing the references to profound studies in the field. Thirdly, special attention is given to previous works focused on the utilization of downscaled ensembles of climate simulations in urban agglomerations. Finally, we identify three major challenges of the wider utilization of climate projections and downscaling techniques, namely: (i) the scale mismatch between data needs and data availability, (ii) the terminology, and (iii) the IT bottleneck. The practical implications of these issues are discussed in the context of urban studies.
Gisane Biacchi Gomes,Ana Denise Zazula,Leonardo Seidi Shigueoka,Rosangela Alquieri Fedato,Ana Beatriz Brenner Affonso da Costa,Luiz Cesar Guarita-Souza,Cristina Pellegrino Baena,Marcia Olandoski,Jose´ 한국식품영양과학회 2017 Journal of medicinal food Vol.20 No.1
Consumption of food products enriched with plant sterols and the use of ezetimibe reduce cholesterol absorption in the intestine and effectively reduce low-density lipoprotein (LDL) plasma levels. We evaluated the therapeutic effect of the ezetimibe+plant sterol association in patients with coronary artery disease still not reaching recommended lipid levels despite the use of statins. We performed a prospective open-label study with 41 patients with stable coronary disease and LDL >70 mg/dL. Patients were randomized into four groups for a 6-week treatment: the control (CT) group remained on the same statin therapy, the ezetimibe (EZ) group received 10 mg/day of ezetimibe, the plant sterol (PS) group received spread enriched with 2 g of plant sterols, and the ezetimibe+PS (EZ+PS) group received 10 mg/day EZ +2 g PS. Initial mean LDL level was 97.4 ± 31.1 mg/dL in control group, 105.1 ± 23.1 mg/dL in EZ group, 95.4 ± 27.7 mg/dL in PS group, and 97.0 ± 8.3 mg/dL in EZ+PS group (P > .05). After 6 weeks of treatment, LDL of patients slightly increased in the control group (+8.9%; P > .05) and dropped in EZ group (-19.1%; P = .06), PS group (-16.6%; P = .01), and EZ+PS group (-27.3%; P < .01). Mean LDL levels after treatment were 70.5 – 17.9 mg/dL in EZ+PS group, lower than the other groups (control was 106.1 ± 34.9 mg/dL, EZ group was 85.0 ± 35.6 mg/dL, and PS was 79.6 ± 29.7 mg/dL) (P = .05 variance analysis factor [ANOVA]). Body weight, body–mass index, and glucose plasma levels did not change significantly after intervention. The combination of PS+ezetimibe was associated with lower LDL levels and suggests beneficial therapeutic effect against major cardiovascular events.