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Caldeira, R.M.,Vasques, M.I.,Vaz Portugal, A. Asian Australasian Association of Animal Productio 2000 Animal Bioscience Vol.13 No.8
Daily variation in the serum concentrations of insulin and insulin-like growth factor-I and in the plasma concentrations of thyroxine and triiodothyronine were evaluated in ewes fed 30%, 100% and 200% of theoretical maintenance energy requirements. The single daily meal has had significant effects (p<0.05) on almost all profiles. In general, serum or plasma hormone concentrations have increased after the meal, in particular at the two higher levels of energy intake. In the group submitted to the lowest level of energy intake, the consequences of the meal on circulating levels were almost imperceptible. The effects of feeding levels on serum or plasma concentrations have widely varied among hormones, not showing any objective pattern or relationship. Because these variations may affect the interpretation of these blood indicators, knowledge of daily profiles and of the effect of feed level must be considered. In order to maximize the diagnostic value of those indicators, the most suitable times for blood collection seem to be 16 h after the meal and (or) just before the meal. The collection 16 h after the meal apparently allows the characterization of a relatively steady metabolic state, intermediate between the close effects of food intake and the final phase of the intensification of body reserves mobilization. The collection just before the meal will give a good indication of the level of activity of those mobilization mechanisms.
Robson Costa,Jim Lau,Paulo Portugal,Francisco Vasques,Ricardo Moraes 한국통신학회 2019 Journal of communications and networks Vol.21 No.3
In this paper, the RT-WiFi architecture is proposedto handle real-time (RT) communication in infrastructured IEEE802.11 networks operating in high density industrial environments. This architecture is composed of a time division multiple access(TDMA)-based coordination layer that schedules the medium accessof RT traffic flows, and an underlying traffic separation mechanismthat is able do handle the coexistence of RT and non-RT trafficsources in the same communication environment. The simulationassessment considers an overlapping basic service set (OBSS),where a set of RT and non-RT stations share the same frequencyband. The performance assessment compares the behaviour of theRT-WiFi architecture vs. the behaviour of standard distributedcoordination function (DCF), point coordination function (PCF),enhanced distributed channel access (EDCA), and hybrid coordinationfunction (HCF) controlled channel access (HCCA) mediumaccess control mechanisms. A realistic error-prone model has beenused to measure the impact of message losses in the RT-WiFi architecture. It is shown that the proposed RT-WiFi architecture offersa significantly enhanced behaviour when compared with the useof IEEE 802.11 standard mechanisms, in what concerns averagedeadline misses and average access delays. Moreover, it also offersan almost constant access delay, which is a relevant characteristicwhen supporting RT applications.
Sweet Basil (Ocimum basilicum): much more than a condiment
Sandra Maria Barbalho,Flávia Maria Vasques Farinazzi Machado,Jaqueline dos Santos Rodrigues,Tiago Henrique Pereira da Silva,Ricardo de Alvares Goulart 셀메드 세포교정의약학회 2012 셀메드 (CellMed) Vol.2 No.1
Ocimum basilicum belongs to the family Lamiaceae and can be found in tropical Asia, Africa, Central America and South America. It is widely cultivated commercially as a condiment or for the production of essential oil. In this review, this plant is accredited with important effects on health, in addition to being a condiment. In folk medicine it is used to treat vomiting, intestinal colic and diarrhea, menstrual pains and to improve kidney function. Some studies have demonstrated that it can be used for the treatment of hyperlipidemia and also that it has antioxidant, neuroprotective, anti-inflammatory and vasodilator properties as well as hepatoprotective effects. In view of its broad range of effects, further studies should be conducted to ascertain the possible use of this plant in clinical trials, not only for prevention but also as an adjuvant in the treatment of different diseases.
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.
Annona montana Fruit and Leaves Improve the Glycemic and Lipid Profiles of Wistar Rats
Sandra Maria Barbalho,Maricelma da Silva Soares de Souza,Patrı´cia Cincotto dos Santos Bueno,Elen Landgraf Guiguer,,Fla´via Maria Vasques Farinazzi-Machado,Adriano Cressoni Arau´jo,Carla Omete Menegui 한국식품영양과학회 2012 Journal of medicinal food Vol.15 No.10
Species of the family Annonaceae has been used traditionally as a medicinal plant in tropical regions of South and North America and in Africa. Annona montana is known popularly as false graviola and originates from tropical America and can be cultivated throughout Brazil. There are no studies in the literature that associate A. montana with the metabolic profile of animals. Therefore, the purpose of this work was to assess the effects of the consumption of pulp and leaves of this plant on the metabolic profile of Wistar rats. The animals, which were treated for 40 days, were divided into two control groups—treated with water via gavage and ad libitum, respectively, and two treated groups—one treated with leaf juice and the other with pulp juice of the fruit. Glycemia, lipids, and body weight were found to decrease and high density lipoprotein-cholesterol (HDL-c) levels to increase in the animals treated with leaf juice. The group treated with pulp juice showed a reduction in lipids and augmented HDL-c. The use of A. montana may have beneficial effects in the prevention of diabetes mellitus and dyslipidemia and may thus contribute to the prevention of cardiovascular diseases.
Gustavo Batista de Castro Souza,Flávio Henrique Teles Vieira,Cláudio Ribeiro Lima,Getúlio Antero de Deus Júnior,Marcelo Stehling de Castro,Sérgio Granato de Araujo,Thiago Lara Vasques 한국전자통신연구원 2016 ETRI Journal Vol.38 No.1
Smart metering systems have become widespread around the world. RF mesh communication systems have contributed to the creation of smarter and more reliable power systems. This paper presents an algorithm for positioning GPRS concentrators to attain delay constraints for a ZigBee-based mesh network. The proposed algorithm determines the number and placement of concentrators using integer linear programming and a queueing model for the given mesh network. The solutions given by the proposed algorithm are validated by verifying the communication network performance through simulations.
Changes in serum levels of lipopolysaccharides and CD26 in patients with Crohn`s disease
( Daniela Oliveira Magro ),( Paulo Gustavo Kotze ),( Carlos Augusto Real Martinez ),( Michel Gardere Camargo ),( Dioze Guadagnini ),( Antonio Ramos Calixto ),( Ana Carolina Junqueira Vasques ),( Maria 대한장연구학회 2017 Intestinal Research Vol.15 No.3
Background/Aims: Lipopolysaccharide (LPS) is a molecule formed by lipids and polysaccharides and is the major cell wall component of gram-negative bacteria. High LPS levels are known to block CD26 expression by activating Toll-like receptor 4. The aim of this study was to correlate the serum levels of LPS and CD26 in Crohn`s disease (CD) patients with serum levels of C-reactive protein (CRP), interleukins, CD activity index, and tumor necrosis factor-α (TNF-α). Methods: Serum samples were collected from 27 individuals (10 with active CD, 10 with inactive CD, and 7 controls) and the levels of LPS, CD26, TNF-α, interleukin-1β (IL-1β), IL-6, IL-17, and CRP were determined by enzyme-linked immunosorbent assay. The levels of LPS and CD26 were then tested for correlation with TNF-α, IL-1β, IL-6, IL-17, and CRP. Results: Serum levels of LPS were significantly elevated in the active CD group (P =0.003). Levels of IL-1β (P =0.002), IL-6 (P =0.003), and IL-17 (P <0.001) were lower in the CD groups. Serum TNF-α levels were increased in the active CD group. The CRP levels were elevated in the CD groups when compared to controls (P <0.001). The CD26 levels were lower in the CD groups than in the control group (P <0.001). Among the variables analyzed, there was a correlation between LPS and CRP (r=-0.53, P =0.016) in the CD groups. Conclusions: Individuals with CD exhibited higher serum levels of LPS varying from a 2- to 6-fold increase depending on disease activity, when compared with healthy controls. CD26 levels were lower in the CD groups. Both LPS and CD26 correlated with disease severity and serve as potential CD biomarkers. (Intest Res 2017;15:352-357)