Letteratura scientifica selezionata sul tema "Hexaco model"
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Articoli di riviste sul tema "Hexaco model"
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Zivanovic, Marko, Sofija Cerovic e Jovana Bjekic. "A six-factor model of brand personality and its predictive validity". Psihologija 50, n. 2 (2017): 141–55. http://dx.doi.org/10.2298/psi161031002z.
Testo completoAbstract (sommario):
The study examines applicability and usefulness of HEXACO-based model in the description of brand personality. Following contemporary theoretical developments in human personality research, Study 1 explored the latent personality structure of 120 brands using descriptors of six personality traits as defined in HEXACO model: Honesty-Humility, Emotionality, Extraversion, Agreeableness, Conscientiousness, and Openness. The results of exploratory factor analyses have supported HEXACO personality six-factor structure to a large extent. In Study 2 we addressed the question of predictive validity of HEXACO-based brand personality. Brand personality traits, but predominantly Honesty-Humility, accounted for substantial amount of variance in prediction of important aspects of consumer-brand relationship: attitude toward brand, perceived quality of a brand, and brand loyalty. The implications of applying HEXACO-based brand personality in marketing research are discussed.
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McAbee, Samuel T., Alex Casillas, Jason D. Way e Feng Guo. "The HEXACO Model in Education and Work". Zeitschrift für Psychologie 227, n. 3 (luglio 2019): 174–85. http://dx.doi.org/10.1027/2151-2604/a000376.
Testo completoAbstract (sommario):
Abstract. Researchers have long been interested in examining relationships between personality traits and performance in applied settings. Although the Big Five remains the most prevalent model of personality, studies adopting an alternative personality model known as the HEXACO model have been increasing in the past decade (e.g., Ashton et al., 2004 ; Lee & Ashton, 2004 ). The aims of the present paper are three-fold: First, we systematically review the literature on the HEXACO model and its applications in educational and work settings. Second, we introduce an emerging applied personality framework for use in educational research and practice, the ACT Behavioral Skills Framework ( Casillas, Way, & Burrus, 2015 ), which is based on the HEXACO model. Third, we offer a number of suggestions for how future research can continue to refine the development and application of the HEXACO model in educational and organizational research and practice.
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Ashton, Michael C., Kibeom Lee, Bernd Marcus e Reinout E. De Vries. "German lexical personality factors: relations with the HEXACO model". European Journal of Personality 21, n. 1 (febbraio 2007): 23–43. http://dx.doi.org/10.1002/per.597.
Testo completoAbstract (sommario):
We correlated the scales of the HEXACO Personality Inventory (HEXACO‐PI) with adjective scale markers of factors previously obtained in indigenous lexical studies of personality structure in the German language. Self‐ratings obtained from a sample of 323 German participants showed a pattern of strong convergent and weak discriminant correlations, supporting the content‐based interpretation of the German lexical factors in terms of the HEXACO dimensions. Notably, convergent correlations were strong for both the broader and the narrower variants of the Honesty‐Humility factor as observed in German lexical studies. Also, convergent correlations for HEXACO Openness to Experience were, as expected, stronger for German adjectives describing a creative and intellectual orientation than for German adjectives describing intellectual ability. Copyright © 2006 John Wiley & Sons, Ltd.
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Sugiarto, Ardi Pratama, Alimatus Sahrah e Anwar Anwar. "Psychometric Properties of Indonesian HEXACO-100: A Facet Level Analysis". Jurnal Psikologi 49, n. 1 (25 aprile 2022): 21. http://dx.doi.org/10.22146/jpsi.61198.
Testo completoAbstract (sommario):
The HEXACO personality model is a six-dimensional personality model that is partially independent from the Big Five personality model (Zettler et.al., 2020). Measurement using the HEXACO Personality Inventory-Revised, its sixth dimension, Honesty-Humility, can capture previously unexplored images of personality. This study aims to adapt the HEXACO Personality Inventory-Revised 100 items version (HEXACO-100) into the Indonesian language and examine its psychometric properties. A purposive sample of 605 participants responded to Indonesian HEXACO-100 (67,2% female; mean age: 25,1 years). The result showed that all six factors have good alpha reliability (all factors α > .7), and the exploratory factor analysis and correlation analysis between the dimensions support the validity of the six-dimensional personality model. It can be concluded that this study successfully adapted the HEXACO-100 personality inventory into the Indonesian language, strengthens the existence of a six-dimensional personality model in Indonesia, and underlines that the HEXACO personality inventory is a useful and reliable personality inventory for investigating personality structure in cross-cultural settings.
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Zettler, Ingo, Isabel Thielmann, Benjamin E. Hilbig e Morten Moshagen. "The Nomological Net of the HEXACO Model of Personality: A Large-Scale Meta-Analytic Investigation". Perspectives on Psychological Science 15, n. 3 (23 aprile 2020): 723–60. http://dx.doi.org/10.1177/1745691619895036.
Testo completoAbstract (sommario):
Based on lexical studies, the HEXACO (honesty-humility, emotionality, extraversion, agreeableness, conscientiousness, and openness to experience) model of personality has been proposed as a model of basic personality structure that summarizes individual differences in six broad trait dimensions. Although research across various fields relies on the HEXACO model increasingly, a comprehensive investigation of the nomological net of the HEXACO dimensions is missing entirely. Thus, it remains unclear whether each HEXACO dimension accounts for individual variation across theoretically relevant outcome criteria. We close this gap through a large-scale meta-analytic investigation, testing whether each HEXACO dimension is uniquely linked to one broad and theoretically relevant outcome domain. Results from 426 individual meta-analyses, 436 independent samples, and 3,893 effect-size estimates corroborate this unique mapping. Specifically, honesty-humility maps onto the outcome domain of exploitation, emotionality onto insecurity, extraversion onto sociality, agreeableness versus anger onto obstruction, conscientiousness onto duty, and openness to experience onto exploration. Overall, the current investigation provides a comprehensive empirical test of the (breadth of) content captured by the HEXACO dimensions and allows for a broad specification of the nomological net of the HEXACO model overall.
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Sokolovska, Valentina, Bojana Dinic e Aleksandar Tomasevic. "Aggressiveness in the HEXACO personality model". Psihologija 51, n. 4 (2018): 449–68. http://dx.doi.org/10.2298/psi170705022s.
Testo completoAbstract (sommario):
The a im of this research was to examine the relations between the HEXACO facets and aggressiveness components (anger, vengefulness, domination, hostility, reactive aggression, proactive aggression, and indirect aggression). On a sample of 654 participants from general population, HEXACO?60, Aggressiveness Questionnaire AVDH, Reactive?Proactive Aggression Questionnaire (RPQ), and Indirect Aggression Scale (IAS) were applied. The results of the community structure network analysis provided the most informative insight into these relations and showed that all aggressiveness components formed a single community with the Agreeableness facets. Thereby, facet Patience was the strongest correlate of anger, and hostility had the highest clustering coefficient, which brings together the Agreeableness facets and aggressiveness components. Although Honesty?Humility formed a separate community, some of its facets had strong isolated connections with indirect aggression and dominance. The results revealed that Agreeableness is a dominant correlate of aggressiveness and captures all aggressiveness components, while Honesty? Humility is related to specific components, referring to a manifestation of aggressiveness in a more subtle and indirect way.
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de Vries, Reinout E., Anita de Vries, Annebel de Hoogh e Jan Feij. "More than the Big Five: Egoism and the HEXACO model of personality". European Journal of Personality 23, n. 8 (dicembre 2009): 635–54. http://dx.doi.org/10.1002/per.733.
Testo completoAbstract (sommario):
Egoism is a personality trait that is associated with self‐enriching and self‐centred behaviours. Research has suggested that egoism lies beyond the Big Five personality factors. Recently, the HEXACO model of personality has been proposed as an alternative to the Big Five model. In three studies, the relation between the HEXACO Personality Inventory and egoism, conceptualized using three different questionnaires (DPQ Egoism, SPI Egotism and the Egoism Scale), is investigated. In all three studies, the HEXACO Honesty–Humility factor scale was the most important predictor of egoism. Additionally, in two studies in which FFM measures were used, the HEXACO Personality Inventory explained more variance in egoism than did the FFPI (Study 2) and the NEO‐PI‐R (Study 3). Copyright © 2009 John Wiley & Sons, Ltd.
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Hadžiahmetović, Nina, e Maida Koso-Drljević. "Predicting vigilance by HEXACO model of personality". Personality and Individual Differences 186 (febbraio 2022): 111297. http://dx.doi.org/10.1016/j.paid.2021.111297.
Testo completo
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Truskauskaitė, I., G. Kaniušonytė, R. Kratavičienė e A. Kratavičiūtė-Ališauskienė. "LIETUVIŠKOSIOS HEXACO PI-R VERSIJOS PSICHOMETRINĖS CHARAKTERISTIKOS". Psichologija 44 (1 gennaio 2011): 104–17. http://dx.doi.org/10.15388/psichol.2011.44.2545.
Testo completoAbstract (sommario):
Pastarąjį dešimtmetį buvo suabejota dominuojančio penkių faktorių asmenybės modelio galimybėmis aprašyti asmenybės struktūrą. Buvo pasiūlytas šešių faktorių asmenybės modelis ir nustatyta, kad šis modelis, palyginti su penkių faktorių modeliu, yra pranašesnis tiek psicholeksiniu, tiek teoriniu, tiek praktiniu aspektais (Ashton and Lee, 2007). HEXACO PI-R klausimynas (Ashton and Lee, 2009) yra skirtas empiriškai tyrinėti šešių faktorių modelį. Naudojant asmenybės klausimynus, paremtus savistaba, yra būtina, kad skirtingose kultūrose klausimyno teiginiai būtų suprantami vienodai. HEXACO PI-R klausimyno, kaip ir bet kokio kito asmenybės struktūros vertinimo instrumento, vertimas ir naudojimas priklauso nuo kalbos ir kultūrinio konteksto, todėl šalyje, kurioje klausimynas bus naudojamas, yra būtina įvertinti psichometrines charakteristikas ir atlikti klausimyno standartizavimą. Šiame straipsnyje yra pateikiamos kai kurios lietuviškosios HEXACO PI-R versijos psichometrinės charakteristikos. Tyrime dalyvavo 369 studentai, moterys ir vyrai, kurių amžius yra nuo 19 iki 28 metų, savo noru sutikę užpildyti HEXACO PI-R klausimyną. Tyrimo rezultatai atskleidė, kad visų asmenybės dimensijas matuojančių skalių (sąžiningumo ir nuolankumo, emocingumo, ekstraversijos, sutariamumo, disciplinuotumo, atvirumo patyrimui) vidinis suderinamumas yra labai geras, o subdimensijas matuojančių subskalių vidinis suderinamumas yra pakankamas, išskyrus dvi subskales, kurių vienos mažas patikimumas gautas ir kitose šalyse, o kitos – gali būti paaiškinamas kultūriniais skirtumais. Faktorių analizė patvirtino šešių faktorių asmenybės teorinį modelį ir atskleidė labai gerą klausimyno struktūrinį validumą – visos subdimensijos turi didžiausius svorius numatytuose dimensijas nusakančiuose faktoriuose. Pagrindiniai žodžiai: asmenybės bruožai, šešių faktorių modelis, HEXACO PI-R. PSYCHOMETRIC PROPERTIES OF THE LITHUANIAN VERSION OF THE HEXACO PI-RTruskauskaitė I., Kaniušonytė G., Kratavičienė R., Kratavičiūtė-Ališauskienė A. SummaryDuring the last decade, the potential of the dominant five-factor personality model to describe the personality structure was questioned. It has been found that at least six factors are needed for the explication of personality structure (Jackson et al., 1996). Lexical research as well as factor analysis of translated five-factor questionnaires repeatedly revealed that six factors as opposed to five should be used in different languages (Ashton et al., 2004). As a result, the six-factor model providing a better insight into a personality was developed. It consists of the following factors: Honesty–Humility (H), Emotionality (E), Extraversion (X), Agreeableness (A), Conscientiousness (C), and Openness to Experience (O), represented by the acronym HEXACO (Lee and Ashton, 2004). This model, as compared with the five-factor model, has an advantage in psycholexical, theoretical as well as practical terms (Ashton and Lee, 2007). The HECAXO PI-R questionnaire (Ashton and Lee, 2009) is an empirical means of the six-factor model. Different items of the personality questionnaire based on introspection should be accurately translated into the identical meaning in different cultures. Like any other personality structure assessment tool, the HEXACO PI-R questionnaire depends on the language and cultural context, so it is necessary to evaluate the psychometric properties as well as to perform standardisation of the questionnaire in a country in which the questionnaire is applied. The article covers particular psychometric properties of the Lithuanian version of the HEXACOPI-R. 369 students (aged between 19 and 28, including 278 women and 91 men) voluntarily agreed to fill in the HEXACO PI-R questionnaire and participate in this research. The results of the questionnaire have shown that the internal consistency of all the scales that assess personality dimensions is very good while the internal consistency of the subscales that assess subdimensions is sufficient, except for two subdimensions, one of which has a low reliability also in other counties, while the other can be explained by cultural differences. Factor analysis confirmed the relevance of the theoretical model of the six-factor personality model and revealed a very good structural validity of the questionnaire: all subdimensions have the biggest weight in the factors that compose these subdimensions. Also, statistically significant differences were found between men and women in the Honesty–Humility, Emotionality and Conscientiousness scales. The mean scores of women were statistically significantly higher than those of men in all scales. The study showed that the Lithuanian version of HEXACOPI-R can be applied in scientific research.Keywords: personality traits, Six Factor Model, HEXACOPI-R.
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Međedović, Janko. "Can HEXACO-PI-R Adequately Represent the Four-Factor Model of Psychopathy?" Psihologijske teme 26, n. 3 (2017): 557–76. http://dx.doi.org/10.31820/pt.26.3.4.
Testo completoAbstract (sommario):
Recently there have been attempts to measure psychopathy via existing personality inventories. The aim of the present research was to explore whether six-factors personality structure (measured by HEXACO-PI-R) can be used for the assessment of the psychopathy model consisted of four traits: interpersonal, affective, lifestyle and antisocial (measured by SRP-4). In Study 1 (402 community participants), the proxy measures of these traits were generated using the HEXACO-PI-R items. It showed that all the psychopathy traits except antisocial tendencies are adequately explained by HEXACO traits: all of the R²s were >.50. Proxy measures had satisfactory reliabilities (all Alphas >.70) and adequate correlations with the original psychopathy scales. In Study 2 (345 undergraduate students) and Study 3 (245 male convicts), the discriminative and external validity of the proxy measures is further demonstrated. The results of the present research showed that HEXACO-PI-R can be used to explore interpersonal, affective and lifestyle features of psychopathy, which can facilitate further research. However, the usage of the inventories which measure psychopathy directly is still preferable when possible.
Tesi sul tema "Hexaco model"
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Zietlow, Kim J. "Socio-demographic and psychological determinants of water conservation behavior". Doctoral thesis, Humboldt-Universität zu Berlin, Lebenswissenschaftliche Fakultät, 2016. http://dx.doi.org/10.18452/17425.
Testo completoAbstract (sommario):
Wasser ist eine der wichtigsten Ressourcen. Jedoch schätzt man, dass sich das globale Wasserdefizit schon im Jahr 2030 auf ca. 40 Prozent belaufen wird. Klimawandel, veränderte Lebensweisen, und Bevölkerungswachstum verstärken das Nachfrage-Angebot-Defizit. Als Konsequenz leiden immer mehr Regionen unter Wasserknappheit. Eine reduzierte Wassernachfrage bedingt durch verstärktes Wassersparen kann das Problem verringern. Das Ziel dieser Dissertation ist es daher, zu einem besseren Verständnis der sozio-demographischen und psychologischen Determinanten von Wassersparverhalten beizutragen. Basierend auf drei Datensätzen aus Deutschland und Jordanien wurden die verschiedenen Facetten von Wassersparverhalten und deren Determinanten beleuchtet. Das Verhältnis zwischen Wassersparen und Umwelteinstellung, einem latenten Konstrukt, das kooperative, prosoziale und sogar moralische Tendenzen widerspiegelt, wurde konzeptionell untersucht. Zusätzlich wurde Wassersparen in Deutschland als ein Repräsentant für moralisches Verhalten verwendet. In diesem Zusammenhang wurden Umwelteinstellung und der Persönlichkeitsfaktor Ehrlichkeit-Bescheidenheit auf ihr Vermögen hin verglichen, moralisches Verhalten vorherzusehen. Eine ausführliche Analyse zur Bewertung einer Kampagne zur Förderung des Wassersparbewusstseins hat detaillierte Informationen zu ihren tatsächlichen Effekten gezeigt. Eine weitere Analyse hat sich auf die Determinanten von Wassersparverhalten in Jordanien konzentriert. Die Ergebnisse zeigen, dass Wassersparverhalten nicht durch Alter, Bildungsgrad und Einkommen beeinflusst wird, sondern eher durch die Ausprägung der Umwelteinstellung. Diese Dissertation liefert wertvolle Informationen für Forscher und Politiker. Die detaillierte Untersuchung von verschiedenen Wasserspardeterminanten birgt großes Potenzial für ein verbessertes Wassermanagement.Water is one of the most important resources. However, the global water deficit was estimated to reach about 40% by 2030. Climate change, changing lifestyles, and population growth increase the supply and demand gap further. As a consequence, more and more regions experience water scarcity. In that context, reduced household water demand due to enhanced water conservation could alleviate the problem or, at least, reduce the pressure on water resources. Thus, this thesis aims to contribute to a better understanding of the socio-demographic and psychological determinants of water conservation behavior. Based on three distinct datasets from Germany and Jordan, the manifold facets of water conservation and its determinants were examined. From a conceptual perspective, the relationship between water conservation and environmental attitude, a latent construct representing cooperative, prosocial, and even moral tendencies, were investigated. Furthermore, water conservation in Germany was used as a proxy for moral behavior. In that respect, environmental attitude and the personality factor Honesty-Humility were compared in order to determine, which factor constitutes the better predictor of moral behavior. Using original data from Jordan, a comprehensive impact evaluation of a water conservation awareness campaign revealed detailed information on its actual effects. Another analysis focused on a wide variety of water conservation determinants in Jordan. The results indicate that water conservation does not differ with respect to age, education, and income, but rather with different levels of environmental attitude. This thesis provides valuable information for researchers and policy makers alike. The detailed examination of various water conservation determinants offer a great potential for an improved management of household water demand.
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Fouche, Erica. "The relationships between engagement, burnout and performance in an e-commerce retail company". Thesis, Stellenbosch : Stellenbosch University, 2015. http://hdl.handle.net/10019.1/96792.
Testo completoAbstract (sommario):
Thesis (MComm)--Stellenbosch University, 2015.ENGLISH ABSTRACT: It is the role of the Industrial Psychologist and the Human Resources function within a company to contribute positively to an organisation’s competitive advantage. Human capital should be viewed and managed as a critical success factor within this context. The probability of attaining success over competitors could be addressed through focussing on the impact of employee performance on competitive advantage. With reference to the organisational life cycle, the e-commerce industry in South Africa seems to be in its infancy. It is in this stage when attaining high levels of performance from employees is of critical importance. In this lies the key for building and growing a competitive advantage that would set one organisation apart from the other – where one organisation would survive the infancy stage and another would drown in the quest to match the demands posed by the relevant industry and its customers. There is minimal Industrial or Organisational Psychology research that has tested hypotheses in the e-commerce industry. This contributed to the decision to implement this research in the e-commerce industry. The e-commerce industry is growing rapidly, and performance therefore is a key factor for success in any e-commerce company in South Africa. The focus of this study was to review the Job Demands Resources model (JD-R model) within the e-commerce retail industry in South Africa in order to add to the knowledge base regarding human behaviour at work, with specific reference to engagement, burnout and performance. The research question of the study was formulated regarding which “state of wellbeing” would increase performance. The JD-R model makes provision for evaluating this question in a structured manner. The JD-R model indicates that performance is influenced by work engagement/burnout (wellbeing). It also indicates that there are certain job demands, job resources and personal resources that will influence wellbeing. The study was facilitated through the use of an ex post facto correlational research design. A sample of 117 workers was chosen from the e-commerce retail industry to participate in the study. Participation was voluntary, the data was collected specifically for the purpose of this study, and all responses were treated confidentially. The measurements that were used included key performance indicators (KPIs), the Utrecht Work Engagement Scale (UWES), the Maslach Burnout Inventory – General Survey (MBI-GS), the Job Characteristics Scale, and the HEXACO model. The literature review formed a logical argument that culminated in a theoretical Stellenbosch University https://scholar.sun.ac.za iii model as well as a set of hypotheses with reference to the various dimensions in the JD-R model. The results showed that: a) Engagement has a significant positive influence on performance. b) Job resources (advancement, personal growth and organisational support) have a significant positive influence on engagement. c) Job resources (advancement, personal growth and organisational support) have a significant negative influence on burnout. d) Personal resources (extraversion) have a significant negative influence on burnout. e) Personal resources (conscientiousness) have a significant positive influence on engagement. f) Personal resources (agreeableness) have a significant negative influence on burnout. The following hypotheses were not supported: a) Burnout has a significant negative influence on performance. b) Personal resources (extraversion) have a significant positive influence on engagement. c) Personal resources (emotionality) have a significant positive influence on engagement. d) Personal resources (emotionality) have a significant negative influence on burnout. e) Personal resources (conscientiousness) have a significant negative influence on burnout. f) Personal resources (agreeableness) have a significant positive influence on engagement. g) Job demands (job overload) have a significant negative influence on engagement. h) Job demands (job overload) have a significant positive influence on burnout. i) Job demands (job insecurity) have a significant negative influence on engagement. j) Job demands (job insecurity) have a significant positive influence on burnout. Attention was also paid to future research considerations, recommendations to the managers of employees and to the limitations of the study.
AFRIKAANSE OPSOMMING: Dit is die rol van die Bedryfsielkundige en die Menslike Hulpbronne funksie in maatskappye om 'n positiewe bydrae tot 'n organisasie se mededingende voordeel te maak. Menslike kapitaal moet beskou en bestuur word as ‘n kritiese sukses faktor in hierdie konteks. Die waarskynlikheid om sukses bo die kompetisie te behaal kan aangespreek word deur om fokus te plaas op die impak wat werknemersprestasie het op mededingings voordeel. Met verwysing na die organisatoriese lewenssiklus blyk die e-handelbedryf in Suid-Afrika om in sy beginstadium te wees. Dit is in hierdie stadium waar die bereiking van hoë vlakke van prestasie van werknemers van kritieke belang is. Hierin lê die sleutel vir die vordering en groei van 'n mededingende voordeel van een maatskappy bo ‘n ander - waar die een organisasie die beginstadium sou oorleef en die ander onder die druk van die versoeke/eise van die betrokke bedryf en sy kliënte sou swyk. Daar is ‘n beperkte hoeveelheid navorsing wat gevind kon word in die veld van Bedryfsielkunde wat hipoteses in die e-handelbedryf toets. Hierdie bevinding het bygedra tot die besluit om hierdie navorsingstudie oor die e-handelbedryf voort te sit. Die e-handelbedryf toon vinnige groei, en prestasie is dus tans 'n belangrike faktor vir sukses in enige e-handelmaatskappy in Suid-Afrika. Die fokus van hierdie navorsingstudie was om die “Job Demands Resources model (JD-R model)” in die e-kleinhandelbedryf in Suid-Afrika toe te pas om sodoende by te dra tot die huidige kennis beskikbaar ten opsigte van menslike gedrag by die werk, met spesifieke verwysing na werksbegeestering, uitbranding en prestasie. Die navorsingsvraag van die navorsingstudie is geformuleer rondom die aanname dat die "toestand van welsyn" prestasievlakke sal verhoog. Die primêre doel van die navorsingstudie was om deur middel van die toepassing van die JD-R model in die e-kleinhandelbedryf, by te dra tot die beskikbare kennis ten opsigte van menslike gedrag by die werk, met spesifieke verwysing na werksbetrokkenheid, uitbranding en prestasie. Die JD-R model maak op 'n gestruktureerde wyse voorsiening vir die evaluering van hierdie verhoudings. Die JD-R model dui aan dat prestasie beïnvloed word deur werksbetrokkenheid/uitbranding (welsyn). Dit dui ook dat daar sekere werksvereistes, werkshulpbronne en persoonlike hulpbronne is wat welstand beïnvloed. Stellenbosch University https://scholar.sun.ac.za v Die navorsingstudie is gefasiliteer deur die gebruik van 'n ex post facto korrelasie-ontwerp. 'n Steekproef van 117 werkers is uit die e-kleinhandelbedryf gekies om aan die studie deel te neem. Deelname was vrywillig, die data is spesifiek ingesamel vir die doel van hierdie navorsingstudie en alle data is as vertroulik hanteer. Die volgende metingsinstrumente is gebruik: kern prestasie aanwysers (KPA’s), die Utrecht Work Engagement Scale (UWES), die Maslach Burnout Inventory – General Survey (MBI-GS), die Job Characteristics Scale, en die HEXACO model. Die literatuuroorsig vorm 'n logiese argument wat lei tot 'n teoretiese model, sowel as 'n stel hipoteses met verwysing na die verskillende dimensies soos gevind in die JD-R model. Die resultate toon: a) Werksbetrokkenheid het ‘n beduidende positiewe invloed op prestasie. b) Werkshulpbronne (bevordering, persoonlike groei en organisatoriese ondersteuning) het ‘n beduidende positiewe invloed op werksbetrokkenheid. c) Werkshulpbronne (bevordering, persoonlike groei en organisatoriese ondersteuning) het ‘n beduidende negatiewe invloed op uitbranding. d) Persoonlike hulpbronne (ekstroversie) het ‘n beduidende negatiewe invloed op uitbranding. e) Persoonlike hulpbronne (pligsgetrouheid) het ‘n beduidende positiewe invloed op werksbetrokkenheid. f) Persoonlike hulpbronne (eenstemmigheid) het ‘n beduidende negatiewe invloed op uitbranding. Die volgende hipoteses was nie aanvaar nie: a) Uitbranding het ‘n beduidende negatiewe invloed op prestasie. b) Persoonlike hulpbronne (ekstroversie) het ‘n beduidende positiewe invloed op werksbetrokkenheid. c) Persoonlike hulpbronne (emosionaliteit) het ‘n beduidende positiewe invloed op werksbetrokkenheid. d) Persoonlike hulpbronne (emosionaliteit) het ‘n beduidende negatiewe invloed op uitbranding. e) Persoonlike hulpbronne (pligsgetrouheid) het ‘n beduidende negatiewe invloed op uitbranding. f) Persoonlike hulpbronne (eenstemmigheid) het ‘n beduidende positiewe invloed op werksbetrokkenheid. Stellenbosch University https://scholar.sun.ac.za vi g) Werksvereistes (oorlading) het ‘n beduidende negatiewe invloed op werksbetrokkenheid. h) Werksvereistes (oorlading) het ‘n beduidende positiewe invloed op uitbranding. i) Werksvereistes (werkonsekerheid) het ‘n beduidende negatiewe invloed op werksbetrokkenheid. j) Werksvereistes (werkonsekerheid) het ‘n beduidende positiewe invloed op uitbranding. Aandag is ook geskenk aan toekomstige navorsings oorwegings, aanbevelings aan die bestuurders van werknemers asook aan die beperkinge van die navorsinstudie.
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McKay, Derek A. "A facet and domain-level analysis of two trait models of personality: Relationship with subjective well-being". University of Akron / OhioLINK, 2017. http://rave.ohiolink.edu/etdc/view?acc_num=akron1498591744789927.
Testo completo
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Mauduit, Marion. "Profils de personnalité et facteurs motivationnels mobilisés lors d'une réorientation vers les études de médecine après un parcours académique ou professionnel différent". Electronic Thesis or Diss., Rennes 2, 2024. http://www.theses.fr/2024REN20009.
Testo completoAbstract (sommario):
Les étudiants « passerelle », qui se réorientent en médecine après un parcours académique etprofessionnel différent ont pour la première fois fait l’objet d’un travail qui vise à décrire leur profil sociodémographique, leurs caractéristiques psychologiques, et les facteurs motivationnels qui sous-tendent leur choix de réorientation vers les études de médecine. Au travers d’une étude qualitative basée sur 42 entretiens semi-dirigés, et d’une étudequantitative réalisée auprès de 718 étudiants en médecine des facultés de Rennes, Nantes, Angers, Tours, et Brest, ce travail de thèse nous montre tout d’abord que les étudiants « passerelle » ont un profil socio-démographique comparable à celui des étudiants en médecine français. Ils sont principalement motivés par un intérêt intrinsèque pour la médecine, etont des attentes plus élevées que les autres étudiants par rapport à la dimension humaine et altruiste du métier de médecin. Les attentes telles que le prestige et la reconnaissance sociale sont au second plan.Ils ont pour principaux traits de personnalité (modèle HEXACO) l’honnêteté-humilité et la conscienciosité, ce qui est aussi le cas des autres étudiants en médecine. Nos résultats montrent qu’ils sont plus extravertis, et qu’ils ont un score d’honnêteté-humilité plus élevé que les autres étudiants. Les valeurs les plus importantes pour eux sont axées vers la transcendance de soi, et l’ouverture au changement. Il semble que les valeurs d’affirmationde soi soient moins importantes pour eux que pour les autres étudiants. Nous avons mis en évidence deux profils de personnalité parmi les étudiants en médecine, dont un profil « altruisme et engagement élevé » qui se distingue par un niveau plus élevé d’honnêteté-humilité, de conscienciosité, d’agréabilité et d’extraversion, au sein duquel les étudiants « passerelle » qui n’avaient pas tenté le concours de la première année de médecine en post baccalauréat semblent être plus nombreuxGateway-entry medical students bypass the traditional first-year selection process for medical school, gaining admission after completing a master’s degree, a PhD, or specific undergraduate degrees. Very little is known about these gateway medical students. This study aims at describing their socio-demographic profile, their personal psychological characteristics, and the motivational factors driving their shift towards medical studies, while also examining the personality traits that may differentiate them from their peers. Through a qualitative study based on 42 semi-structured interviews, and a quantitative study carried out on 718medical students from the faculties of Rennes, Nantes, Angers, Tours and Brest, this study reveals several key findings. Firstly, gateway students exhibit a sociodemographic profile similar to that of their French medical counterparts. They are primarily motivated byan inherent interest in medicine and hold greater expectations regarding the humanistic and altruistic facets of the medical profession compared to other students. While factorssuch as the prestige and social recognition associated with being a doctor also influence theirchoice, these are secondary considerations. Their main personality traits (HEXACO model) arehonesty-humility and conscientiousness. However, they tend to exhibit higher levels of extroversion and honesty-humility compared to their counterparts. Their core personal values emphasize selftranscendence and openness to change. Furthermore, our analysis identifies two distinct personality profiles among medical students, with a notable "high altruism and commitment" profile characterized by elevated levels of honesty-humility, conscientiousness, agreeableness, and extroversion. Interestingly, a higher proportion of gateway students (those who had not attempted the first-year medical entrance examination after completing high school) fall within this profile
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Guo, Yixuan. "Hexapod Gait Planning and Obstacle Avoidance Algorithm". University of Toledo / OhioLINK, 2016. http://rave.ohiolink.edu/etdc/view?acc_num=toledo1461868607.
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Zhang, Li. "Accuracy enhancement of a hexapod machine tool /". Essen : Vulkan-Verl, 2006. http://deposit.d-nb.de/cgi-bin/dokserv?id=2864795&prov=M&dok_var=1&dok_ext=htm.
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Rosano-Matchain, Hugo Leonardo. "Decentralised compliant control for hexapod robots : a stick insect based walking model". Thesis, University of Edinburgh, 2007. http://hdl.handle.net/1842/2574.
Testo completoAbstract (sommario):
This thesis aims to transfer knowledge from insect biology into a hexapod walking robot. The similarity of the robot model to the biological target allows the testing of hypotheses regarding control and behavioural strategies in the insect. Therefore, this thesis supports biorobotic research by demonstrating that robotic implementations are improved by using biological strategies and these models can be used to understand biological systems. Specifically, this thesis addresses two central problems in hexapod walking control: the single leg control mechanism and its control variables; and the different roles of the front, middle and hind legs that allow a decentralised architecture to co-ordinate complex behavioural tasks. To investigate these problems, behavioural studies on insect curve walking were combined with quantitative simulations. Behavioural experiments were designed to explore the control of turns of freely walking stick insects, Carausius morosus, toward a visual target. A program for insect tracking and kinematic analysis of observed motion was developed. The results demonstrate that the front legs are responsible for most of the body trajectory. Nonetheless, to replicate insect walking behaviour it is necessary for all legs to contribute with specific roles. Additionally, statistics on leg stepping show that middle and hind legs continuously influence each other. This cannot be explained by previous models that heavily depend on positive feedback controllers. After careful analysis, it was found that the hind legs could actively rotate the body while the middle legs move to the inside of the curve, tangentially to the body axis. The single leg controller is known to be independent from other legs but still capable of mechanical synchronisation. To explain this behaviour positive feedback controllers have been proposed. This mechanism works for the closed kinematic chain problem, but has complications when implemented in a dynamic model. Furthermore, neurophysiological data indicate that legs always respond to disturbances as a negative feedback controller. Additional experimental data presented herein indicates that legs continuously oppose forces created by other legs. This thesis proposes a model that has a velocity positive feedback control modulated via a subordination variable in cascade with a position negative feedback mechanism as the core controller. This allows legs to oppose external and internal forces without compromising inter-leg collaboration for walking. The single leg controller is implemented using a distributed artificial neural network. This network was trained with a wider range of movement to that so far found in the simulation model. The controller implemented with a plausible biological.
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Custodio, Aline Ferrão. "Modelagem e simulação do processo de separação de oleo de soja-hexano por evaporação". [s.n.], 2003. http://repositorio.unicamp.br/jspui/handle/REPOSIP/266512.
Testo completoAbstract (sommario):
Orientadores: Rubens Maciel Filho, Dailton de Freitas RezendeDissertação (mestrado) - Universidade Estadual de Campinas, Faculdade de Engenharia Quimica
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Resumo: Até as duas primeiras décadas do século XX, a extração industrial de oleaginosas se fazia, exclusivamente pelo uso de prensas. As prensas, embora extraíssem um óleo de muito boa qualidade, deixavam resíduos no material sólido (torta) superiores, por exemplo a 5% para grãos como o de soja. Tais resíduos além de implicarem em perda de óleo, afetavam a qualidade da torta, que é também um dos produtos efluentes do extrator. A extração por solvente, por outro lado, é capaz de retirar o óleo, deixando resíduos inferiores a 1%. Após a extração, os sólidos são encaminhados ao dessolventizador e a micela (mistura óleo-solvente) ao sistema de destilação, composto por dois evaporadores em série e uma coluna de dessorção (stripping). A unidade de evaporação é uma das que mais demandam energia em uma planta de processamento. Assim, a modelagem matemática dinâmica deste processo com vistas à otimização do consumo energético e à avaliação do desempenho de políticas de controle torna-se um requisito decisivo para operação economicamente viável. O objetivo geral deste trabalho é desenvolver um modelo dinâmico efetuando análises de sensibilidade paramétrica para um evaporador típico da indústria de extração de óleos vegetais, visando a otimização deste processo, ou seja, a recuperação máxima de solvente e o consumo mínimo de energia. A fim de analisar as condições de operação do sistema, propôs-se um modelo matemático do sistema de evaporação com base no de TONELLI et al. (1990), consistindo em balanços mássicos global e de óleo e de balanço energético em torno do sistema de evaporação. O programa simulador foi construído em linguagem FORTRAN. Este programa, a partir de informações tais como temperatura, pressão e concentração de alimentação, assim como de quais são os componentes envolvidos, calcula propriedades termodinâmicas tais como temperaturas de ebulição, capacidades térmicas e entalpias de misturas. Desse modo, um mínimo de informações são requeridas, permitindo simulações rápidas do processo de evaporação. O programa computacional elaborado permitiu simulações rápidas e com baixos erros numéricos para o processo de evaporação do solvente em uma unidade de dessolventização do óleo após extração convencional. Este programa permitiu ainda avaliações de efeitos para os fatores influentes na evaporação. Considerando-se a intensidade das perturbações realizadas e o nível central dos fatores, o fator fração mássica de óleo na entrada foi o que apresentou o maior efeito. Já a velocidade de escoamento do vapor de água de aquecimento foi o fator com o menor efeito no teor de óleo da micela efluente
Abstract: Until the two first decades of century XX, the industrial extraction of oleaginosas were carried out exclusively by mechanical process. This process allow to extracted oil of very good quality, but it leads the left residues in the solid material (pie) to be very high, for example 5% for grains as of soy. Such residues besides implying in loss of oil, affected the quality of the pie, that is also one of the effluent products of the extractor. The extraction for solvent, on the other hand, is capable to remove the oil, leaving residues to be smaller (1%). After the extraction, the solids are directed to the dessolventizador and miscella (oil-solvent mixture) to the distillation system. Witch is composed by two evaporators in series and a stripping column. The unit of evaporation is one that demands for high energy consumption in a processing plant. Thus, the dynamic mathematical modeling of this process with sights to the reduction of the energy consumption and to the evaluation of the performance of control politics becomes a decisive requirement for economically viable operation. The general objective of this work is to develop a dynamic model of the process witch allow for parametric sensitivity analyze for a typical evaporator for the vegetal oil industry extraction. The aim is to have a tool for either process optimization or maximum recovery of solvent. The deterministic mathematical model is developed through mass and energy balance equation together with heat and mass transfer parameter correlations. The simulator was build up in FORTRAN. The software uses operational information as feed temperature, concentration and pressure witch allows for the calculation of the thermodynamic properties such as thermal temperatures of boiling, capacities and enthalpies of mixtures. In this way, a minimum of information is required, allowing fast simulations of the evaporation process. Through experimental design procedure applied to the deterministic model was possible to identify the main operational variables effects as well as the impact of the extraction array variables has on the process behaviors. The mass oil fraction in the feed was found to have the largest effect. The speed of the water vapor draining for the heating zone was the factor with the loweit effect in the oil miscella effluent
Mestrado
Desenvolvimento de Processos Químicos
Mestre em Engenharia Química
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Morrone, Simone Ribeiro. "Determinação experimental do volume excesso de soluções de ciclohexano /2-Propanol, ciclohexano /2-Butanol, N-Hexano/2-Propanol, N-Hexano/2-Butanol a 298,15k e A 288,15K e aplicação do modelo eras". [s.n.], 1994. http://repositorio.unicamp.br/jspui/handle/REPOSIP/267378.
Testo completoAbstract (sommario):
Orientador: Artur Zaghini FrancesconiDissertação (mestrado) - Universidade Estadual de Campinas, Faculdade de Engenharia Quimica
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Resumo: Os objetivos deste trabalho consistiram no levantamento de dados inéditos do volume excesso, por densitometria, de soluções alcano/alcanol e no teste do modelo de soluções ERAS. Os sistemas estudados foram ciclohexano/2-propanol, ciclohexano/2-butanol, n-hexano/2-propanol, n-hexano/2-butanol à pressão ambiente e às temperaturas de 288,15 K e 298,15 K. Todos os valores do volume excesso foram positivos, sendo o maior valor aproximadamente 0,6 cm3/mol encontrado para ciclohexano/2-butanol, a 298,15 K. As curvas volume excesso em função das frações molares dos alcanos possuem formas parabólicas para o ciclohexano e sigmóides para o n-hexano. Constatou-se que o volume excesso aumenta com: a temperatura, o comprimento da cadeia do alcanol e a esfericidade do alcano. o modelo ERAS, que, ao contrário de outras teorias de solução, responde bem não somente à energia livre de Gibbs em excesso, mas também a outras grandezas excesso, foi desenvolvido por Heintz para sistemas do tipo aicano/alcanol.A principal característica deste modelo é o cálculo simultâneo das grandezas excesso. Os resultados apresentados foram bons, chegando, algumas vezes, a valores bem próximos dos experimentais
Abstract: The aim of this work were to collect new data of the excess volume of alkane alkanol solutions, using a vibrating-tube densimeter, and to test the solution model ERAS. The systems studied were cyclohexane/2-propanol, cyclohexane/2-butanol, n-hexane/2-propanol, n-hexane/2-butanol at 288.15 K and 298.15 K and room pressure. Ali values of the excess volume were positive and the maximum was about 0.6 cm3/mol for the cyclohexane/2-butanol at 298.15 K. The curves excess volume versus mole fractions have parabolic form for systems containing cyclohexane and sigmoid form for the n-hexane systems. It was observed that the excess volume increased with: the temperature, the lenght of the alkanol chain and the sphere shape of the alkane. The ERAS model, regardless of other solution theories, does not present good results only for the excess Gibbs free energy, but also for any excess . property, was developed by Heintz for alkane/alkanol systems. The main feature of this model is the simultaneous calculation of excess properties. The results were good and, in some cases, the values were very close to the experimental ones
Mestrado
Sistemas de Processos Quimicos e Informatica
Mestre em Engenharia Química
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Fouche, Valérie. "Hydroïsomérisation du N-Hexane : activité et stabilité des catalyseurs platine mordénite". Poitiers, 1989. http://www.theses.fr/1989POIT2293.
Testo completoAbstract (sommario):
Sous pression elevee d'hydrogene (>10 bar) les catalyseurs platine mordenite sont tres selectifs pour l'isomerisation de l'hexane et presentent une tres grande stabilite. Un maximum d'activite est observe pour une valeur du rapport si/al de la charpente zeolithique voisine de 10. Un modele cinetique a ete propose pour rendre compte de l'effet des parametres operatoires sur la vitesse d'isomerisation
Libri sul tema "Hexaco model"
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P, Conti Joseph, e National Institute of Standards and Technology (U.S.), a cura di. Workspace variation of a hexapod machine tool. Gaithersburg, MD: U.S. Dept. of Commerce, Technology Administration, National Institute of Standards and Technology, 1998.
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Quinn, Roger D., e Roy E. Ritzmann. Principles and mechanisms learned from insects and applied to robotics. Oxford University Press, 2018. http://dx.doi.org/10.1093/oso/9780199674923.003.0042.
Testo completoAbstract (sommario):
This chapter explores how insects have provided inspiration for robotic designs over recent decades as biologists have continued to learn more about these complex invertebrate systems. Initial legged robots typically mimicked insects only in terms of their basic six-legged (hexapod) designs and walking gaits. Since then robots have been developed that take advantage of insect leg and wing designs, compliant structures, movement behaviors, reflexes, and even local neural control systems identified in their central nervous systems. Future robots may be controlled with models of entire insect nervous systems including their brains.
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Bond, John Russell. Human skin and model membranes for permeation studies: Comparative and steady-state permeability studies on humanand hairless mouse skins, eggshell and synthetic membranes using water, mannitol, hexanol, salicylic acid and 5-fluorouracil, together with the effects of penetration enhancers'. Bradford, 1986.
Cerca il testo completoCapitoli di libri sul tema "Hexaco model"
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Lee, Kibeom, e Michael C. Ashton. "HEXACO Model of Personality Structure, The". In Encyclopedia of Personality and Individual Differences, 1932–36. Cham: Springer International Publishing, 2020. http://dx.doi.org/10.1007/978-3-319-24612-3_1227.
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Lee, Kibeom, e Michael C. Ashton. "The HEXACO Model of Personality Structure". In Encyclopedia of Personality and Individual Differences, 1–6. Cham: Springer International Publishing, 2016. http://dx.doi.org/10.1007/978-3-319-28099-8_1227-1.
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Visser, Beth A. "Narcissism and the Big Five/HEXACO Models of Personality". In Handbook of Trait Narcissism, 205–12. Cham: Springer International Publishing, 2018. http://dx.doi.org/10.1007/978-3-319-92171-6_22.
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Föll, Fabian, Valerie Gerber, Claus-Dieter Munz, Berhand Weigand e Grazia Lamanna. "On the Consideration of Diffusive Fluxes Within High-Pressure Injections". In Notes on Numerical Fluid Mechanics and Multidisciplinary Design, 195–208. Cham: Springer International Publishing, 2020. http://dx.doi.org/10.1007/978-3-030-53847-7_12.
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Abstract Mixing characteristics of supercritical injection studies were analyzed with regard to the necessity to include diffusive fluxes. Therefore, speed of sound data from mixing jets were investigated using an adiabatic mixing model and compared to an analytic solution. In this work, we show that the generalized application of the adiabatic mixing model may become inappropriate for subsonic submerged jets at high-pressure conditions. Two cases are discussed where thermal and concentration driven fluxes are seen to have significant influence. To which extent the adiabatic mixing model is valid depends on the relative importance of local diffusive fluxes, namely Fourier, Fick and Dufour diffusion. This is inter alia influenced by different time and length scales. The experimental data from a high-pressure n-hexane/nitrogen jet injection were investigated numerically. Finally, based on recent numerical findings, the plausibility of different thermodynamic mixing models for binary mixtures under high pressure conditions is analyzed.
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Conrad, James M., e Jonathan W. Mills. "The History and Future of Stiquito: A Hexapod Insectoid Robot". In Artificial Life Models in Hardware, 1–20. London: Springer London, 2009. http://dx.doi.org/10.1007/978-1-84882-530-7_1.
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Yang, Aimin, Jianping Zheng e Guanchen Zhou. "Research and Application on the Regular Hexagon Covering Honeycomb Model". In Communications in Computer and Information Science, 696–702. Berlin, Heidelberg: Springer Berlin Heidelberg, 2011. http://dx.doi.org/10.1007/978-3-642-27452-7_94.
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Yang, Aimin, Jianping Zheng e Guanchen Zhou. "Research and Application on the Regular Hexagon Covering Honeycomb Model". In Information Computing and Applications, 344–50. Berlin, Heidelberg: Springer Berlin Heidelberg, 2011. http://dx.doi.org/10.1007/978-3-642-25255-6_44.
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Coleman, Peter T. "The Essence of Peace? Toward a Comprehensive and Parsimonious Model of Sustainable Peace". In Hexagon Series on Human and Environmental Security and Peace, 149–60. Cham: Springer International Publishing, 2016. http://dx.doi.org/10.1007/978-3-319-43884-9_7.
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Pierre, Ryan St, Dana Vogtmann e Sarah Bergbreiter. "Model-Based Insights on the Design of a Hexapod Magnetic Walker". In Experimental Robotics, 715–27. Cham: Springer International Publishing, 2015. http://dx.doi.org/10.1007/978-3-319-23778-7_47.
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Stern, Julio Michael. "Color-Coded Epistemic Modes in a Jungian Hexagon of Opposition". In Studies in Universal Logic, 303–32. Cham: Springer International Publishing, 2021. http://dx.doi.org/10.1007/978-3-030-90823-2_14.
Testo completoAtti di convegni sul tema "Hexaco model"
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William, P., e Abhishek Badholia. "Analysis of Personality Traits from Text Based Answers using HEXACO Model". In 2021 International Conference on Innovative Computing, Intelligent Communication and Smart Electrical Systems (ICSES). IEEE, 2021. http://dx.doi.org/10.1109/icses52305.2021.9633794.
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William, P., Abhishek Badholia, Brijesh Patel e Manoj Nigam. "Hybrid Machine Learning Technique for Personality Classification from Online Text using HEXACO Model". In 2022 International Conference on Sustainable Computing and Data Communication Systems (ICSCDS). IEEE, 2022. http://dx.doi.org/10.1109/icscds53736.2022.9760970.
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Stănescu, Dan Florin, e Marius Constantin Romașcanu. "AN EXPLORATIVE STUDY REGARDING THE RELATIONS BETWEEN DARK TRIAD AND HEXACO MODEL OF PERSONALITY". In International Psychological Applications Conference and Trends. inScience Press, 2021. http://dx.doi.org/10.36315/2021inpact017.
Testo completoAbstract (sommario):
"Despite their diverse origins, the personalities composing this Dark Triad share several features. To varying degrees, all three entail a socially malevolent character with behavior tendencies toward self-promotion, emotional coldness, duplicity, and aggressiveness (Paulhus & Williams, 2002). Subclinical narcissism, Machiavellianism, and psychopathy are referred to as the Dark Triad due to their socially undesirable nature, similar phenotypical behaviors (e.g., manipulation), positive intercorrelations of their scales, and conceptual similarities (e.g., ego-centricity) (Rauthmann, 2012). A narcissistic person is described in terms of a high vanity, constantly seeking attention and admiration, with a sense of superiority or authority. Most often he or she manifests manipulative and exhibitionist behaviors. Machiavellianism is a tendency to be cynical, pragmatic, emotionally detached in interpersonal relations but, at the same time a good organizer and having long-term strategically thinking. Psychopathy presents as cardinal features: impulsiveness, emotional detachment, manipulative antisocial behavior. In the current study 126 participants (24 males and 102 females), ages ranged between 18 and 26 years old (M=19.30, SD=1.11), were invited to fill in the following measures: MACH IV (Christie & Geis, 1970), Narcissistic Personality Inventory NPI-16 (Ames, Rose & Anderson, 2006), Self-Report Psychopathy scale – version III (Paulhus, Neumann, & Hare, 2009) and HEXACO-PI-R (Lee & Ashton, 2018). Results showed significant negative correlations between psychoticism and four of the six HEXACO factors, namely Honesty-Humility, Emotionality, Agreeableness, and Conscientiousness. Similarly, narcissism is negatively related to Honesty-Humility and Agreeableness, and positively with Extraversion. Machiavellianism showed a positive correlation with Honesty-Humility, Agreeableness, and Conscientiousness. Findings of the current study should be extended in more diverse samples (e.g., better female-male ratio) and also including measures for the Light Triad of personality, thus providing new insights into the positive, growth-oriented personality traits."
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Jahn, Bernie R. "Simulation, Design, and Testing of a High Performance Multi-Axis Hexapod for Vibration Isolation". In ASME 2007 International Design Engineering Technical Conferences and Computers and Information in Engineering Conference. ASMEDC, 2007. http://dx.doi.org/10.1115/detc2007-34502.
Testo completoAbstract (sommario):
This paper describes the simulation, design, and testing of a high-performance six degree-of-freedom hexapod for the purpose of isolating sensitive payloads from low-frequency vibrations. Design criteria required the hexapod to support a generic payload up to 500 lb with an isolation plunge frequency of approximately 1 Hz. Simulations were performed using Matlab in order to determine the optimum geometry of the base and platform structures in order to provide the best combination of translation-rotation uncoupling, frequency spread, plunge frequency, and jitter. Based on these simulation results, hexapod base and platform structures were designed and fabricated based on a 50 inch-diameter platform size. All of the accumulators and pneumatic hardware were embedded into the base structure to allow for a totally contained system. Modal testing of the hexapod was performed in order to verify the modes predicted by the model.
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Aridon, G., A. Al Majid, L. Blanchard, D. Re´mond e R. Dufour. "A Self-Deployment Hexapod Model for a Space Application". In ASME 2007 International Design Engineering Technical Conferences and Computers and Information in Engineering Conference. ASMEDC, 2007. http://dx.doi.org/10.1115/detc2007-35299.
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This paper presents an efficient simulation tool for predicting a self deployment of an on-board deployable hexapod based on the release of stored strain energies provided by six tape-spring actuators. Six restoring force models describe their hysteretic behavior. A formulation of a direct dynamic model developed with a Lagrangian approach is achieved. Furthermore, tensor representation is used to condense and simplify the calculation of Lagrangian partial derivatives. Results are compared with a numerical model that performs the recursive Newton-Euler technique. Finally, the impact of the excitation of the base on the deployment performances is evaluated taking advantage of the proposed restoring force models.
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Artates, Jonivan, e Behnam Bahr. "Design and Control of a Variable Geometry Hybrid Wheel-Leg". In ASME 2019 International Mechanical Engineering Congress and Exposition. American Society of Mechanical Engineers, 2019. http://dx.doi.org/10.1115/imece2019-10189.
Testo completoAbstract (sommario):
Abstract Conventional wheeled platforms provide sufficient locomotion on smooth surfaces but are limited when contending with obstacles such as stairs, steep inclines, or rugged terrain. Legged robots, which are better suited in traversing such obstacles, require an increased number of actuators, and thereby expend more energy. This paper describes the Adaptive Wheel-Leg, AWL, that provides mobile robots with the benefits of both wheels and legs. AWL is a two degree-of-freedom, hybrid wheel-leg topology with instantaneous switching between modes. AWL provides two modes: 1) a single actuator rolling mode for smooth surfaces, and 2) a walking mode for rugged terrain. This paper presents the mechanism’s design and control methods. An experimental model and a simulation of an AWL equipped hexapod are also discussed.
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Chun-Kai Huang, Ke-Jung Huang e Pei-Chun Lin. "Rolling SLIP model based running on a hexapod robot". In 2013 IEEE/RSJ International Conference on Intelligent Robots and Systems (IROS 2013). IEEE, 2013. http://dx.doi.org/10.1109/iros.2013.6697169.
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Mahapatra, Abhijit, Shibendu Shekhar Roy, Kondalarao Bhavanibhatla e Dilip Kumar Pratihar. "Energy-efficient inverse dynamic model of a Hexapod robot". In 2015 International Conference on Robotics, Automation, Control and Embedded Systems (RACE). IEEE, 2015. http://dx.doi.org/10.1109/race.2015.7097237.
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Cirillo, Pasquale, Giuseppe De Maria e Ciro Natale. "Customization of low-cost hexapod robots based on optimal design through inverse dynamics computation". In 2015 20th International Conference on Methods and Models in Automation and Robotics (MMAR ). IEEE, 2015. http://dx.doi.org/10.1109/mmar.2015.7284034.
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Yang, Fan, Xilun Ding e Gregory S. Chirikjian. "Kinematic Analysis of Hexapod Manipulation". In ASME 2016 International Design Engineering Technical Conferences and Computers and Information in Engineering Conference. American Society of Mechanical Engineers, 2016. http://dx.doi.org/10.1115/detc2016-59619.
Testo completoAbstract (sommario):
This paper provides a method for modeling the center of mass (COM) of hexapod manipulation systems, which is based on the Statically Equivalent Serial Chain (SESC) model. First, the product of exponentials (POE) formula is used to construct the SESC model for the simple tree-like chain. Then, in order to apply this method to real scenarios, the situation when the robot stands on uneven terrain is studied. In addition, the static grasp constraints for the manipulation and the Jacobian matrix for the COM of the system are analyzed. Moreover, we present a modified tumble stability margin, which considers all of the possible ways that the robot can tumble. Finally, based on these kinematic analyses, a motion control scheme for statically stable manipulation is proposed. The results are validated with simulations.
Rapporti di organizzazioni sul tema "Hexaco model"
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STUDY ON MECHANICAL PROPERTIES OF HONEYCOMB REGULAR HEXAGON DAMPER. The Hong Kong Institute of Steel Construction, marzo 2024. http://dx.doi.org/10.18057/ijasc.2024.20.1.7.
Testo completoAbstract (sommario):
Traditional metal dampers have the advantages of easy processing, convenient production, and good mechanical properties. However, most of the traditional metal dampers are single design, and their application is limited by the size of the dampers. Based on the honeycomb metal damper, a honeycomb regular hexagon metal damper with a free connection is proposed in this paper. Firstly, the failure mechanism, hysteretic curve, skeleton curve, stiffness degradation curve, and energy dissipation curve of the single energy-dissipating supporting member and the triple two-row supporting member were obtained through the low-cycle reciprocating loading test. Then the R-O mechanical model was fitted to the skeleton curve obtained from the test. Then, three kinds of honeycomb regular hexagon dampers were modeled by ABAQUS finite element simulation software, and the finite element simulation results were compared with the test results. The results show that the energy dissipation support in this paper has a good bearing capacity and energy dissipation capacity, and the development trend of simulation results align with the experimental results. The energy dissipation capacity of the energy dissipation support can be improved, and the multi-section yield can be achieved by connecting multiple energy dissipation units.