Festividades: representações simbólicas no turismo brasileiro

Teixeira, Maisa França; Teixeira, Salete Kozel

doi:10.5380/tes.v7i1.37145

Cited by 4 publications

(4 citation statements)

References 1 publication

(1 reference statement)

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“…Due to its low calcium content the degradation of polysaccharides cell walls are accelerated, resulting in a rapid decay of texture. Estimated losses of papaya are above 40% of total production from the point of origin to the point of consumption . Brazil is the largest producer of papaya, accounting for around 30% of world harvest and therefore offers a large amount of disposed material available for puree processing.…”

Section: Introductionmentioning

confidence: 99%

Comparison Between Chitosan Nanoparticles and Cellulose Nanofibers as Reinforcement Fillers in Papaya Puree Films: Effects on Mechanical, Water Vapor Barrier, and Thermal Properties

Barros-Alexandrino

Martelli‐Tosi

Assis

2018

Polymer Engineering & Sci

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Chitosan nanoparticles (Np) were prepared by ionic gelation method, with particle size of 58.54 ± 16.99 nm. Cellulose nanofibers (Nf) were extracted from soybean straws by a combined process of mechanical grinding and enzymatic hydrolysis, with diameters between 40 and 120 nm and variable length. The puree was prepared by using over‐ripe papayas and fillers (Np and Nf) incorporated separately at a concentration of 0.1% and 0.2% (% of filler to puree mass in dry bases) and subsequently cast into films. Mechanical characterization, both tensile strength and strain at break, were found to have significantly improved for those films reinforced with Nf. Values of tensile of 2.79 ± 1.20 MPa for chitosan and 7.30 ± 1.27 MPa for cellulose were measured for 0.2% additions. The presence of cellulose fibers (elongation of 9.33% ± 0.72%) had a greater effect on film plasticity than for chitosan Np (6.86% ± 2.17%) at 0.2% addition. About 0.2% of Nf also performed better than Np in reducing the water vapor permeation rate. Calorimetric analysis (TGA and DSC) indicated thermal stability of the composite films at temperatures above 100°C, with similar behavior between samples. POLYM. ENG. SCI., 59:E287–E292, 2019. © 2018 Society of Plastics Engineers

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Section: Introductionmentioning

confidence: 99%

Comparison Between Chitosan Nanoparticles and Cellulose Nanofibers as Reinforcement Fillers in Papaya Puree Films: Effects on Mechanical, Water Vapor Barrier, and Thermal Properties

Barros-Alexandrino

Martelli‐Tosi

Assis

2018

Polymer Engineering & Sci

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“…The most effective techniques are either electrochemical or optical label-free biosensors. 11 Electrochemical sensors measure changes in electrical impedance when hCG binds to the sensor [12][13][14][15][16][17][18][19] . Although they have high sensitivities and in some cases can detect hCG at a concentration of 30 fM 17 , electrochemical sensors can have issues with sample reproducibility and sensor stability.…”

mentioning

confidence: 99%

“…These sensors typically rely on interferometry 21 , surface plasmon resonance 22,23 , photoluminescence [24][25][26][27] , or electrochemiluminescence 18 . These existing optical techniques are, however, less sensitive than mass spectrometry [13][14][15][21][22][23][24] and require multiple steps which can increase user error. High-sensitivity single molecule optical biosensors have previously been demonstrated using optical microspheres coupled to plasmonic nanoparticles 28,29 , but the effective active area of these sensors is very small, limited to just the locations of the plasmonic hot spots on the nanoparticles.…”

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confidence: 99%

Ultrasensitive Detection of Human Chorionic Gonadotropin Using Frequency Locked Microtoroid Optical Resonators

et al. 2019

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Clean sport competition is of significant concern to many governments and sporting organizations. Highly sensitive and rapid sensors are needed to improve the detection of performance enhancing drugs in sports as athletes take diuretics to dilute the concentration of drugs in their urine and microdose under the detectable limits of current sensors. Here we demonstrate, using frequency locked microtoroid optical resonators, a three order of magnitude improvement in detection limit over the current gold standard, mass spectrometry, for the common performance enhancing drug, human chorionic gonadotropin (hCG). hCG, also known as the pregnancy hormone, was detected both in simulated urine and in the urine of pregnant donors at a concentration of 1 and 3 femtomolar, respectively. We anticipate that the sensitivity provided by frequency locked optical microcavities can enable a new standard in anti-doping research.The use of performance enhancing drugs during athletic events is prohibited by the World Anti-Doping Association (WADA). To monitor the use of these drugs, anti-doping drug tests are routinely performed during athletic events 1,2 . These tests can detect minute quantities of chemicals from bodily fluids, such as blood or urine. Mass spectrometry is currently the gold standard 3,4 for detecting various doping agents; however, it can have insufficient limits of detection 5 , requires a trained operator, involves specialized enzymes, 6,7 and can be expensive, costing in excess of 100 dollars per assay.

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“…However, FSM may easily fail in the presence of noise. It is applied as recognizer in various methods [15,16,17,18,19].…”

Section: Introductionmentioning

confidence: 99%

Human Activity Recognition from Basic Actions Using Finite State Machine

Noorit

Suvonvorn

2013

Lecture Notes in Electrical Engineering

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High-level human activity recognition is an important method for the automatic event detection and recognition application, such as, surveillance system and patient monitoring system. In this paper, we propose a human activity recognition method based on FSM model. The basic actions with their properties for each person in the interested area are extracted and calculated. The action stream with related features (movement, referenced location) is recognized using the predefined FSM recognizer modeling based on rational activity. Our experimental result shows a good recognition accuracy (86.96% in average).

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Festividades: representações simbólicas no turismo brasileiro

Cited by 4 publications

References 1 publication

Comparison Between Chitosan Nanoparticles and Cellulose Nanofibers as Reinforcement Fillers in Papaya Puree Films: Effects on Mechanical, Water Vapor Barrier, and Thermal Properties

Comparison Between Chitosan Nanoparticles and Cellulose Nanofibers as Reinforcement Fillers in Papaya Puree Films: Effects on Mechanical, Water Vapor Barrier, and Thermal Properties

Ultrasensitive Detection of Human Chorionic Gonadotropin Using Frequency Locked Microtoroid Optical Resonators

Human Activity Recognition from Basic Actions Using Finite State Machine

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