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  1. Article ; Online: On the pervasive effect of word frequency in metamemory.

    Mendes, Pedro S / Undorf, Monika

    Quarterly journal of experimental psychology (2006)

    2021  Volume 75, Issue 8, Page(s) 1411–1427

    Abstract: Predictions of one's future memory performance-judgements of learning (JOLs)-are based on the cues that learners regard as diagnostic of memory performance. One of these cues is word frequency or how often words are experienced in the language. It is not ...

    Abstract Predictions of one's future memory performance-judgements of learning (JOLs)-are based on the cues that learners regard as diagnostic of memory performance. One of these cues is word frequency or how often words are experienced in the language. It is not clear, however, whether word frequency would affect JOLs when other cues are also available. The current study aims to close this gap by testing whether objective and subjective word frequency affect JOLs in the presence of font size as an additional cue. Across three experiments, participants studied words that varied in word frequency (Experiment 1: high and low objective frequency; Experiment 2: a whole continuum from high to low objective frequency; Experiment 3: high and low subjective and objective frequency) and were presented in a large (48pt) or a small (18pt) font size, made JOLs, and completed a free recall test. Results showed that people based their JOLs on both word frequency and font size. We conclude that word frequency is an important cue that affects metamemory even in multiple-cue situations.
    MeSH term(s) Cues ; Humans ; Judgment ; Learning ; Mental Recall ; Metacognition
    Language English
    Publishing date 2021-10-25
    Publishing country England
    Document type Journal Article
    ZDB-ID 219170-2
    ISSN 1747-0226 ; 0033-555X ; 1747-0218
    ISSN (online) 1747-0226
    ISSN 0033-555X ; 1747-0218
    DOI 10.1177/17470218211053329
    Database MEDical Literature Analysis and Retrieval System OnLINE

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    In stock of ZB MED Cologne/Königswinter

    Zs.B 1109: Show issues Location:
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  2. Article: The impact of COVID-19 on memory: Recognition for masked and unmasked faces.

    Guerra, Natália / Pinto, Raquel / Mendes, Pedro S / Rodrigues, Pedro F S / Albuquerque, Pedro B

    Frontiers in psychology

    2022  Volume 13, Page(s) 960941

    Abstract: Considering the current state of the worldwide pandemic, it is still common to encounter people wearing face protection masks. Although a safety measure against COVID-19, face masks might be compromising our capacity for face recognition. We conducted an ...

    Abstract Considering the current state of the worldwide pandemic, it is still common to encounter people wearing face protection masks. Although a safety measure against COVID-19, face masks might be compromising our capacity for face recognition. We conducted an online study where 140 participants observed masked and unmasked faces in a within-subjects design and then performed a recognition memory task. The best performance was found when there were no masks either at study and test phase, i.e., at the congruent unmasked condition. The worst performance was found for faces encoded with a mask but tested without it (i.e., masked-unmasked incongruent condition), which can be explained by the disruption in holistic face processing and the violation of the encoding specificity principle. Interestingly, considering the unmasked-masked incongruent condition, performance was probably affected by the violation of the encoding specificity principle but protected by holistic processing that occurred during encoding.
    Language English
    Publishing date 2022-10-06
    Publishing country Switzerland
    Document type Journal Article
    ZDB-ID 2563826-9
    ISSN 1664-1078
    ISSN 1664-1078
    DOI 10.3389/fpsyg.2022.960941
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  3. Article: Interplay of Metal-Acid Balance and Methylcyclohexane Admixture Effect on n-Octane Hydroconversion over Pt/HUSY

    Korica, Nebojsa / Mendes, Pedro S. F. / De Clercq, Jeriffa / Thybaut, Joris W.

    Industrial & engineering chemistry process design and development. 2021 Aug. 23, v. 60, no. 34

    2021  

    Abstract: Hydroconversion feeds are mixtures comprising alkanes and cycloalkanes, for which the binary impact on the respective reaction pathways, is still not completely understood. Methylcyclohexane admixture on n-octane hydroconversion over Pt/HUSY catalysts ... ...

    Abstract Hydroconversion feeds are mixtures comprising alkanes and cycloalkanes, for which the binary impact on the respective reaction pathways, is still not completely understood. Methylcyclohexane admixture on n-octane hydroconversion over Pt/HUSY catalysts has been investigated using the pure compounds and their equimolar mixtures in a wide range of operating conditions. The hydroconversion behavior on catalysts with various Pt loading was examined to investigate the role of the active sites. No impact of methylcyclohexane admixture to n-octane was observed over catalysts which ensured ideal hydrocracking (0.5 and 0.1 wt%Pt). In contrast, methylcyclohexane addition decreased the octane isomer yield at iso-conversion over 0.07 wt%Pt/HUSY. A lower metal loading of 0.04 wt%Pt led to a pronounced decrease in n-octane conversion in the mixture. The methylcyclohexane conversion was not affected by n-octane addition regardless of the metal–acid balance. The negative admixture impact on the n-octane conversion and isomers yield, combined with the absence of any impact on the methylcyclohexane behavior, was attributed to preferred cycloalkane adsorption on metal sites, resulting in a reduced metal site availability for alkanes. A cycloalkane admixture to an alkane in hydrocracking can, hence, induce a regime shift from ideal to nonideal hydrocracking. Consequently, bifunctional catalysts developed purely for alkane hydroconversion may prove not to be optimal for realistic feeds, including cycloalkanes.
    Keywords adsorption ; isomers ; octane ; process design
    Language English
    Dates of publication 2021-0823
    Size p. 12505-12520.
    Publishing place American Chemical Society
    Document type Article
    ZDB-ID 1484436-9
    ISSN 1520-5045 ; 0888-5885
    ISSN (online) 1520-5045
    ISSN 0888-5885
    DOI 10.1021/acs.iecr.1c01775
    Database NAL-Catalogue (AGRICOLA)

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  4. Article: Automation of Data-Driven Rate Equation Screening for Heterogeneously Catalyzed Reactions

    Saltão, Vasco A. C. / Thybaut, Joris W. / Pirro, Laura / Freire, Filipe G. / Mendes, Pedro S. F.

    Industrial & engineering chemistry process design and development. 2022 Sept. 09, v. 61, no. 37

    2022  

    Abstract: Automating the generation of suitable kinetic models could dramatically improve its application to novel reactions. Therefore, a software tool was developed to automatically propose rate equations for a catalytic reaction, purely based on experimental ... ...

    Abstract Automating the generation of suitable kinetic models could dramatically improve its application to novel reactions. Therefore, a software tool was developed to automatically propose rate equations for a catalytic reaction, purely based on experimental data. The tool screens initial rate equations (from a comprehensive, theoretical, physically meaningful library) by comparing their predicted trends with those present in the experimental data, thereby eliminating the rate equations that cannot reproduce the trends in the data. Afterward, the feasible rate equations are ranked based on trend similarity, resulting in an ordered list of rate equations ready for regression. For most of the tested literature datasets, the tool proposed the same rate equation as experienced researchers. This is a key first step into the automation of kinetic modeling that, once generalized, will allow its widespread use in the understanding of catalytic reactions.
    Keywords automation ; catalytic activity ; computer software ; data collection ; equations ; process design
    Language English
    Dates of publication 2022-0909
    Size p. 13841-13853.
    Publishing place American Chemical Society
    Document type Article
    ZDB-ID 1484436-9
    ISSN 1520-5045 ; 0888-5885
    ISSN (online) 1520-5045
    ISSN 0888-5885
    DOI 10.1021/acs.iecr.2c01920
    Database NAL-Catalogue (AGRICOLA)

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  5. Article ; Online: Word frequency effects on judgments of learning: More than just beliefs.

    Mendes, Pedro S / Luna, Karlos / Albuquerque, Pedro B

    The Journal of general psychology

    2019  Volume 148, Issue 2, Page(s) 124–148

    Abstract: Judgments of learning (JOLs) are usually higher for high-frequency words than for low-frequency words, which has been attributed to beliefs about how word frequency affects memory. The main goal of the present study was to explore if identifying word ... ...

    Abstract Judgments of learning (JOLs) are usually higher for high-frequency words than for low-frequency words, which has been attributed to beliefs about how word frequency affects memory. The main goal of the present study was to explore if identifying word frequency as a relevant cue is necessary for it to affect JOLs. The idea is that for one to base judgments in beliefs of how a variable affects memory, one must first consider that variable. In Experiments 1 and 2, participants studied a list of high- and low-frequency words, made immediate JOLs, and answered questions aimed at identifying the cues used to make those JOLs. The results showed that identifying word frequency as a cue was not necessary for effects on JOLs to occur, suggesting that some participants could not have used beliefs about how word frequency affects memory when making JOLs. In Experiment 3, we measured processing fluency of high- and low-frequency words through a lexical decision task. Participants identified high-frequency words quicker than low-frequency words, suggesting the former to be more fluently processed. In Experiment 4, we explored if response times in a lexical decision task mediated the effect of word frequency on JOLs. Results showed a significant mediation of 8-13%, depending on the analysis technique. We argue that theory-driven processes do not fully account for word frequency effects on JOLs.
    MeSH term(s) Cues ; Humans ; Judgment ; Learning ; Memory ; Mental Recall ; Metacognition
    Language English
    Publishing date 2019-12-27
    Publishing country United States
    Document type Journal Article
    ZDB-ID 3132-x
    ISSN 1940-0888 ; 0022-1309
    ISSN (online) 1940-0888
    ISSN 0022-1309
    DOI 10.1080/00221309.2019.1706073
    Database MEDical Literature Analysis and Retrieval System OnLINE

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    In stock of ZB MED Cologne/Königswinter

    Zs.B 567: Show issues Location:
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  6. Article: Nanoscale insights into Pt-impregnated mixtures of zeolites

    Mendes, Pedro S. F / Taleb, Anne-Lise / Gay, Anne-Sophie / Daudin, Antoine / Bouchy, Christophe / Silva, João M / Ribeiro, M. Filipa

    Journal of materials chemistry A. 2017 Aug. 15, v. 5, no. 32

    2017  

    Abstract: A series of catalysts prepared by Pt deposition over intimate mixtures of HUSY and HBEA zeolites was investigated for the first time and compared to individual Pt/zeolite solids. The samples were characterized through macroscopic techniques and at the ... ...

    Abstract A series of catalysts prepared by Pt deposition over intimate mixtures of HUSY and HBEA zeolites was investigated for the first time and compared to individual Pt/zeolite solids. The samples were characterized through macroscopic techniques and at the nanoscale by electron microscopy and electron tomography, in order to evaluate both the acid and the hydrogenation functions. Comparable macroscopic properties were observed between Pt-impregnated individuals and zeolite mixtures. In contrast, at the nanoscale, differences were evident. When mixtures of zeolites were impregnated, Pt was not homogeneously distributed over the sample. In fact, Pt was located mainly on the HBEA zeolite rather than on HUSY, as confirmed by TEM-EDS semi-quantification. This selectivity in Pt location was tentatively explained by the higher amount of terminal silanol and EFAL species in the HBEA sample. The preferential Pt location at the nanoscale may open up new possibilities in the design and application of hybrid catalysts.
    Keywords catalysts ; energy-dispersive X-ray analysis ; hydrogenation ; tomography ; transmission electron microscopy ; zeolites
    Language English
    Dates of publication 2017-0815
    Size p. 16822-16833.
    Publishing place The Royal Society of Chemistry
    Document type Article
    ZDB-ID 2702232-8
    ISSN 2050-7496 ; 2050-7488
    ISSN (online) 2050-7496
    ISSN 2050-7488
    DOI 10.1039/c7ta02534c
    Database NAL-Catalogue (AGRICOLA)

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