Substantial Factor

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Marco Panizza - One of the best experts on this subject based on the ideXlab platform.

  • electro fenton solar photoelectro fenton and uva photoelectro fenton degradation of erythrosine b dye solution
    Chemosphere, 2021
    Co-Authors: Davide Clematis, Marco Panizza
    Abstract:

    Abstract The treatment of Erythrosine B, selected as a model compound, has been comparatively studied by electrochemical advanced oxidation processes (EAOPs) such as electro-Fenton, UVA photoelectro-Fenton and solar photoelectro-Fenton at constant current density. Experiments are performed in a one-compartment cell with a BDD anode, and a commercial carbon felt cathode at pH = 3, treating a volume of 0.3 L in each test. The irradiation plays a crucial role in the increasing of hydroxyl radical production and in the recover of iron catalyst. A faster colour and COD removal degradation are achieved under the light application. UVA photoelectro-Fenton and solar photoelectro-Fenton processes allow degrading COD entirely in 90 min, while a conventional electro-Fenton does not reach 90% COD removal after 2 h. Energy consumptions are a Substantial Factor in process selection. Photo electro-Fenton with a UVA-100 W lamp has one of the best removal performance, but it becomes not suitable for application due to high energy demand, up to 515.6 kWh m−3, and the UVA system requires the main fraction of this energy. Possible alternatives are proposed to contain costs: the first is the reduction of UVA lamp power to 25 W, maintaining a high-performance removal with an Ec decreasing to 187.9 kWh m−3. Nevertheless, the lowest and competitive energy demands is obtained working with a solar photoelectro-Fenton system, where energy consumption are only related to the electrochemical process (20.9 kWh m−3), and removal is complete.

Davide Clematis - One of the best experts on this subject based on the ideXlab platform.

  • electro fenton solar photoelectro fenton and uva photoelectro fenton degradation of erythrosine b dye solution
    Chemosphere, 2021
    Co-Authors: Davide Clematis, Marco Panizza
    Abstract:

    Abstract The treatment of Erythrosine B, selected as a model compound, has been comparatively studied by electrochemical advanced oxidation processes (EAOPs) such as electro-Fenton, UVA photoelectro-Fenton and solar photoelectro-Fenton at constant current density. Experiments are performed in a one-compartment cell with a BDD anode, and a commercial carbon felt cathode at pH = 3, treating a volume of 0.3 L in each test. The irradiation plays a crucial role in the increasing of hydroxyl radical production and in the recover of iron catalyst. A faster colour and COD removal degradation are achieved under the light application. UVA photoelectro-Fenton and solar photoelectro-Fenton processes allow degrading COD entirely in 90 min, while a conventional electro-Fenton does not reach 90% COD removal after 2 h. Energy consumptions are a Substantial Factor in process selection. Photo electro-Fenton with a UVA-100 W lamp has one of the best removal performance, but it becomes not suitable for application due to high energy demand, up to 515.6 kWh m−3, and the UVA system requires the main fraction of this energy. Possible alternatives are proposed to contain costs: the first is the reduction of UVA lamp power to 25 W, maintaining a high-performance removal with an Ec decreasing to 187.9 kWh m−3. Nevertheless, the lowest and competitive energy demands is obtained working with a solar photoelectro-Fenton system, where energy consumption are only related to the electrochemical process (20.9 kWh m−3), and removal is complete.

Debra K Sullivan - One of the best experts on this subject based on the ideXlab platform.

  • the nutrition literacy assessment instrument is a valid and reliable measure of nutrition literacy in adults with chronic disease
    Journal of Nutrition Education and Behavior, 2018
    Co-Authors: Heather D Gibbs, Edward F Ellerbeck, Byron J Gajewski, Chuanwu Zhang, Debra K Sullivan
    Abstract:

    Abstract Objective To test the reliability and validity of the Nutrition Literacy Assessment Instrument (NLit) in adult primary care and identify the relationship between nutrition literacy and diet quality. Design This instrument validation study included a cross-sectional sample participating in up to 2 visits 1 month apart. Setting/Participants A total of 429 adults with nutrition-related chronic disease were recruited from clinics and a patient registry affiliated with a Midwestern university medical center. Main Outcome Measures Nutrition literacy was measured by the NLit, which was composed of 6 subscales: nutrition and health, energy sources in food, food label and numeracy, household food measurement, food groups, and consumer skills. Diet quality was measured by Healthy Eating Index–2010 with nutrient data from Diet History Questionnaire II surveys. Analysis The researchers measured Factor validity and reliability by using binary confirmatory Factor analysis; test-retest reliability was measured by Pearson r and the intraclass correlation coefficient, and relationships between nutrition literacy and diet quality were analyzed by linear regression. Results The NLit demonstrated Substantial Factor validity and reliability (0.97; confidence interval, 0.96–0.98) and test-retest reliability (0.88; confidence interval, 0.85–0.90). Nutrition literacy was the most significant predictor of diet quality (β = .17; multivariate coefficient = 0.10; P  Conclusions The NLit is a valid and reliable tool for measuring nutrition literacy in adult primary care patients.

Dario Cazzoli - One of the best experts on this subject based on the ideXlab platform.

  • eye movements discriminate fatigue due to chronotypical Factors and time spent on task a double dissociation
    PLOS ONE, 2014
    Co-Authors: Dario Cazzoli, Chrystalina A Antoniades, Christopher Kennard, Thomas Nyffeler, Claudio L Bassetti, Rene M Muri
    Abstract:

    Systematic differences in circadian rhythmicity are thought to be a Substantial Factor determining inter-individual differences in fatigue and cognitive performance. The synchronicity effect (when time of testing coincides with the respective circadian peak period) seems to play an important role. Eye movements have been shown to be a reliable indicator of fatigue due to sleep deprivation or time spent on cognitive tasks. However, eye movements have not been used so far to investigate the circadian synchronicity effect and the resulting differences in fatigue. The aim of the present study was to assess how different oculomotor parameters in a free visual exploration task are influenced by: a) fatigue due to chronotypical Factors (being a ‘morning type’ or an ‘evening type’); b) fatigue due to the time spent on task. Eighteen healthy participants performed a free visual exploration task of naturalistic pictures while their eye movements were recorded. The task was performed twice, once at their optimal and once at their non-optimal time of the day. Moreover, participants rated their subjective fatigue. The non-optimal time of the day triggered a significant and stable increase in the mean visual fixation duration during the free visual exploration task for both chronotypes. The increase in the mean visual fixation duration correlated with the difference in subjectively perceived fatigue at optimal and non-optimal times of the day. Conversely, the mean saccadic speed significantly and progressively decreased throughout the duration of the task, but was not influenced by the optimal or non-optimal time of the day for both chronotypes. The results suggest that different oculomotor parameters are discriminative for fatigue due to different sources. A decrease in saccadic speed seems to reflect fatigue due to time spent on task, whereas an increase in mean fixation duration a lack of synchronicity between chronotype and time of the day.

Heather D Gibbs - One of the best experts on this subject based on the ideXlab platform.

  • the nutrition literacy assessment instrument is a valid and reliable measure of nutrition literacy in adults with chronic disease
    Journal of Nutrition Education and Behavior, 2018
    Co-Authors: Heather D Gibbs, Edward F Ellerbeck, Byron J Gajewski, Chuanwu Zhang, Debra K Sullivan
    Abstract:

    Abstract Objective To test the reliability and validity of the Nutrition Literacy Assessment Instrument (NLit) in adult primary care and identify the relationship between nutrition literacy and diet quality. Design This instrument validation study included a cross-sectional sample participating in up to 2 visits 1 month apart. Setting/Participants A total of 429 adults with nutrition-related chronic disease were recruited from clinics and a patient registry affiliated with a Midwestern university medical center. Main Outcome Measures Nutrition literacy was measured by the NLit, which was composed of 6 subscales: nutrition and health, energy sources in food, food label and numeracy, household food measurement, food groups, and consumer skills. Diet quality was measured by Healthy Eating Index–2010 with nutrient data from Diet History Questionnaire II surveys. Analysis The researchers measured Factor validity and reliability by using binary confirmatory Factor analysis; test-retest reliability was measured by Pearson r and the intraclass correlation coefficient, and relationships between nutrition literacy and diet quality were analyzed by linear regression. Results The NLit demonstrated Substantial Factor validity and reliability (0.97; confidence interval, 0.96–0.98) and test-retest reliability (0.88; confidence interval, 0.85–0.90). Nutrition literacy was the most significant predictor of diet quality (β = .17; multivariate coefficient = 0.10; P  Conclusions The NLit is a valid and reliable tool for measuring nutrition literacy in adult primary care patients.