Siblings compete for parental care and feeding, while parents must allocate scarce resources to those offspring most likely to survive and reproduce. This could cause offspring to evolve traits that advertise health, and thereby attract parental resources. For example, experimental evidence suggests that bright orange filaments covering the heads of North American coot chicks may have evolved for this fitness-advertising purpose. Could any human mental disorders be the equivalent of dull filaments in coot chicks—low-fitness extremes of mental abilities that evolved (...) as fitness indicators? One possibility is autism. Suppose that the ability of very young children to charm their parents evolved as a parentally selected fitness indicator. Young children would vary greatly in their ability to charm parents, that variation would correlate with underlying fitness, and autism could be the low-fitness extreme of this variation. This view explains many seemingly disparate facts about autism and leads to some surprising and testable predictions. (shrink)

ObjectiveTo determine to what extent physical fitness indicators and/or moderate to vigorous physical activity may account for final mathematics academic performance awarded at the end of primary school.MethodsSchool-aged youth were sampled in a repeated-measures, longitudinal design in Grade 6, and again in Grade 9. The youth completed a fitness test battery consisting of: flamingo balance test, standing long jump, backward obstacle course, plate tapping, sit ups, sit and reach, handgrip, and 20-m shuttle run. APmath scores were obtained for all children (...) at the end of Grade 5, end of Grade 8, and end of Grade 9. In a sub-sample of Grade 6 youth, MVPA was measured objectively via SenseWear Pro Armbands for seven consecutive days, with measurements repeated in Grade 9.ResultsMath scores decreased from Grade 6 to 9 for both boys and girls. MVPAOB was reduced by ∼45.7 min from Grade 6 to 9. Significant main and interaction effects are noted for each fitness indicator. A backward stepwise multiple regression analysis determined significant shared variance in final APmath grade to the change scores from Grade 6 to Grade 9 in: ΔAPmath, Δbackward obstacle course, Δsit and reach, and Δsit-ups [R2 = 0.494, F = 43.67, p < 0.0001]. A second regression was performed only for the youth who completed MVPAOB measurements. In this sub-sample, MVPAOB did not significantly contribute to the model.ConclusionLongitudinal changes in youth fitness and their delta change in APmath score accounted for 49.4% of the variance in the final math grade awarded at the end of Grade 9. Aerobic power, upper body strength, and muscular endurance share more common variance to final math grade in boys, whereas whole-body coordination was the more relevant index in girls; this finding suggests that future research exploring the relationship of AP and PF should not be limited to cardiorespiratory fitness, instead encompassing muscular and neuro-muscular components of PF. (shrink)

Traditionally, the sense of touch—alongside the senses of taste and smell—has been excluded from the aesthetic domain. These proximal modalities are thought to deliver only sensory pleasures, not the complex, world-directed perceptual states that characterize aesthetic experience. In this paper, I argue that this tradition fails to recognize the perceptual possibilities of haptic touch, which allows us to experience properties of the objects with which we make bodily contact, including their weight, shape, solidity, elasticity, and smoothness. These features, moreover, may (...) be indicative of how well-suited an object is for its function, and in feeling them we can thus feel the positive aesthetic quality of functional beauty. (shrink)

Model simplicity in curve fitting is the fewness of parameters estimated. I use a vector model of least squares estimation to show that degrees of freedom, the difference between the number of observed parameters fit by the model and the number of explanatory parameters estimated, are the number of potential dimensions in which data are free to differ from a model and indicate the disconfirmability of the model. Though often thought to control for parameter estimation, the AIC and similar (...) class='Hi'>indices do not do so for all model applications, while goodness of fit indices like chi-square, which explicitly take into account degrees of freedom, do. Hypothesis testing with prespecified values for parameters is based on a metaphoric regulative subject/object schema taken from object perception and has as its goal the accumulation of objective knowledge. (shrink)

This study examined the relationship between person–organization (PO) fit on prosocial identity (prosocial PO fit) and various employee outcomes. The results of polynomial regression analysis based on a sample of 589 hospital employees, which included medical doctors, nurses, and staff, indicate joint effects of personal and organizational prosocial identity on the development of a sense of organizational identification and on the engagement in prosocial behaviors toward colleagues, organizations, and patients. Specifically, prosocial PO fit had a curvilinear relationship with organizational identification, (...) such that organizational identification increased as organizational prosocial characteristics increased toward personal prosocial identity and then decreased when the organizational prosocial characteristics exceeded the personal prosocial identity. In addition, organizational identification and prosocial behaviors increased as both personal and organizational prosocial identity increased from low to high. (shrink)

Alexander Rosenberg began his recent article on the concept of fitness with the remark that “debates about the cognitive status of the Darwinian theory of natural selection should have ended long ago.” I agree that this obsession need to be overcome. But Rosenberg repeats some of the old mistakes and invents epicycles on others. In this comment I will not be able to circumscribe fully the range of the topics that an adequate treatment of this cluster of problems demands. A (...) few critical comments will indicate what I find wanting in Rosenberg’s treatment. (shrink)

First, I establish on the basis of a few texts in the Timaeus the need for this type of semantic interpretation. These passages occur in three clearly identifiable contexts, each concerning how best to think and talk about various aspects of the universe. The first passage constitutes one of two premises in the argument concerning the relation between time and eternity; the second involves an analogy pertaining to the Receptacle; the third clarifies the language for spatial directions that can obtain (...) in a spherical universe. Having thus shown that this sense of the language is indeed present in this dialogue, there follows an extended application to and discussion of three passages in which this language is also prominent, the first of which has commanded significantly more scholarly commentary than have the other two: (1) the other premise as well as the conclusion of the argument about the relation between time and eternity, (2) the analogy between the four primary natural bodies and the letters of a language, and (3) for the second time, the number of worlds that exist. The paper concludes with an argument against Vlastos’ notorious claim that Plato here amounted to a scientific Luddite who set Greek science back by crushing fact with value; Plato is, on the contrary, merely indicating the epistemological dependence of the whole of empirical science upon metaphysics. (shrink)

This paper is in three sections. In the first I describe and illustrate three uses of indices of truth in semantics. The way I illustrate this classification is not completely uncontroversial, but I expect that my intuitions on this matter are generally shared. In the second section I broach a question which is central to the metaphysics of time, namely: how should certain temporal indices of truth - times - be fitted within this classificatory scheme? I sketch three (...) proposals as to how this might be done, and show how they constitute different metaphysical conceptions of the nature of time. Finally, in the third section I turn to a specific problem with the classification of times (as indices of truth) I call 'non-indexical'. Mellor (1981) thinks this problem insoluble, and argues that it shows this classification to be absurd. However, by appealing to the modal analogues of the issues involved, I first show that Mellor's argument is question- begging, and then go on to show how the non-indexical classification of times might undermine the presuppositions on which his argument rests. The paper attempts to contribute to a discussion of the question raised in section II, not to provide a definitive answer to it. (shrink)

Positive effects of person-environment fit on job satisfaction and persistence are well documented. However, little is known about the consequences of person-vocation fit for vocational education and training. Using data from the German National Educational Panel Study, we examine the influence of selected P-V fit indicators on training satisfaction and premature contract termination for 4,097 trainees in VET. We find that most P-V incongruences do not lead to negative consequences. Training satisfaction is not affected by interest congruence and skill congruence. (...) However, moderate overeducation enhances training satisfaction. For PCT, there is a general effect of undereducation; undereducation increases the probability of PCT independent of educational qualification for the occupation. PCT is not affected by skill congruence and only for Realistic interests, congruence with the vocational environment reduces PCT probability. (shrink)

1. Academics as a profession is traditionally viewed as stress-free due to high levels of academic freedom, clarity of job description and performance indicators, and tenure protected positions (Th...

Tyler Burge (2010) provided a scathing critique of all programs for naturalizing concepts of representation, especially teleological naturalizing programs. He tended to demonstrate that “representational content” is a concept that cannot be reduced to more fundamental biological or physical ideas. According to him, since the 1970s, the concept of representational content has been firmly established in cognitive psychology as a mature science and utilized inadequate explanations. Since Dretske’s program is Burge’s primary objective, this paper concentrates on Dretske’s perspective. Following Burge’s (...) criticisms, I concur that Dretske’s naturalizing program trivializes the complex concept of representational content in cognitive science by applying it to bacteria, protozoa, etc. There is a superior explanation, namely Burge’s alternative idea of “registering information.” I do not believe, however, that this spells the end of naturalization programs. There is no reason to deny that at least some biological functions entail representational capacities with perceptual constancy, if not all. Cases of genuine perception, representing the accurate distal causes of proximal stimuli under various conditions, contribute to fitness. It is not by accident that representational content plays a role in cases of genuine perception. Consequently, I will argue that accuracy and biological fitness cannot be separated. (shrink)

In his Explaining Behavior, Fred Dretske uses a reliabilist theory of representation to try to vindicate the use of intentional explanation for behaviour against latter-day elitninativism. Although Dretske's indicator semantics turns on the notion of function, he himself never explicitly defines what function means. Dretske's reticence in discussing function may ultimately be an error, for, as I argue, his implicit understanding of what a function amounts to does not fit with data from op rant conditioning. Still, this need not be (...) a deep flaw in Dretske and I offer one way in which we may patch up the notion of function via the changes known to occur with learning in the brain. Ultimately, I conclude that the only facts needed to explain behaviour are (1) the conditions in the world that are paired with neuronal circuit activation (as picked out by goals in some circumstances); and (2) what motor output that condition triggers. (shrink)

ABSTRACT Research suggests that ethical leadership affects employee behavior and organizational functioning. This study aimed to determine the relationship between EL and productive energy, as mediated by person-organizational fit. The study used assumptions of the social learning and social exchange theories that posit that leadership has a direct impact on employee behavior, mainly through role modeling and the reciprocal nature thereof. An empirical paradigm using a cross sectional quantitative design was used. The PE instrument was assessed for construct validity within (...) the South African context. The analysis included a comparison between the private and public sectors, emphasizing the importance of context as differentiator. Relatively high, statistically significant correlations were found between the variables for both sectors and the combined sample. The hierarchical regression analysis indicated that 18% of the variance in PE is explained by EL. This model was improved by the inclusion of POF. The conceptual model was confirmed with structural equation modeling. The findings of this study suggest that EL has a significantly positive effect on PE and POF, which mediates the relationship between EL and PE. Sectoral differences were reported. (shrink)

Alexander Rosenberg begins his recent article on the concept of fitness with the remark that "debates about the cognitive status of the Darwinian theory of natural selection should have ended long ago." I agree that this obsession needs to be overcome. But Rosenberg repeats some of the old mis- takes and invents epicycles on others. In this comment I will not be able to circumscribe fully the range of topics that an adequate treatment of this cluster of problems demands. A (...) few critical re marks will indicate what I find wanting in Rosenberg's treatment. (shrink)

The detrimental effect of human behavior on the environment is undeniable. Attitudes are recognized as a predictor of the pro-environmental behavior; therefore, having good quality tools in Colombia to measure them is strategic to assess interventions. This study aims to establish psychometric indicators for the pro-environmental attitudes questionnaire Colombian version to a sample of 415 volunteers aged 18–70 years. We used the 28-item PEAQ already linguistically adapted for Colombia. We applied the following questionnaires: Environmental awareness, environmental values, and the pro-environmental (...) at work questionnaire. We used a one-parameter Rasch model and Winsteps program to assess the PEAQ's one-dimensionality and item statistics by gender, and estimated Spearman's rho coefficient between the PEAQ scores and the scales for concurrent validity. The PEAQ in this study has 24 items because 4 items did not fit into the Rasch model criteria. Its one-dimensionality was supported by an explained variance and the first residual variance. The coefficients, α = 0.95 and Ω = 0.95; Rasch for persons = 0.90; and Rasch for items = 0.95. The correlation between the PEAQ and the EC, EV, and PEWQ scales were Spearman's rho coefficient = 0.859, 0.795, and 0.885, respectively. Thus, the PEAQ Colombian version's psychometric indicators support it as a valid and reliable instrument to measure pro-environmental attitudes in this country. (shrink)

Difficulties understanding speech form one of the most prevalent complaints among older adults. Successful speech perception depends on top-down linguistic and cognitive processes that interact with the bottom-up sensory processing of the incoming acoustic information. The relative roles of these processes in age-related difficulties in speech perception, especially when listening conditions are not ideal, are still unclear. In the current study, we asked whether older adults with a larger working memory capacity process speech more efficiently than peers with lower capacity (...) when speech is presented in noise, with another task performed in tandem. Using the Eye-tracking of Word Identification in Noise Under Memory Increased Load an adapted version of the “visual world” paradigm, 36 older listeners were asked to follow spoken instructions presented in background noise, while retaining digits for later recall under low or high memory load. In critical trials, instructions directed listeners’ gaze to pictures of objects whose names shared onset or offset sounds with the name of a competitor that was displayed on the screen at the same time. We compared listeners with different memory capacities on the time course for spoken word recognition under the two memory loads by testing eye-fixations on a named object, relative to fixations on an object whose name shared phonology with the named object. Results indicated two trends. For older adults with lower working memory capacity, increased memory load did not affect online speech processing, however, it impaired offline word recognition accuracy. The reverse pattern was observed for older adults with higher working memory capacity: increased task difficulty significantly decreases online speech processing efficiency but had no effect on offline word recognition accuracy. Results suggest that in older adults, adaptation to adverse listening conditions is at least partially supported by cognitive reserve. Therefore, additional cognitive capacity may lead to greater resilience of older listeners to adverse listening conditions. The differential effects documented by eye movements and accuracy highlight the importance of using both online and offline measures of speech processing to explore age-related changes in speech perception. (shrink)

The purpose of this study was to assess the relationships among ethical context, organizational commitment, and person-organization fit using a sample of 304 young working adults. Results indicated that corporate ethical values signifying different cultural aspects of an ethical context were positively related to both organizational commitment and person-organization fit. Organizational commitment was also positively related to person-organization fit. The findings suggest that the development and promotion of an ethical context might enhance employees' workplace experiences, and companies should consider adopting (...) ethical policies that support principled conduct, punish unethical actions, and increase individual perceptions of an ethical company environment. (shrink)

Locating the position of the Delphic hippodrome is a long‑standing question in the archaeology of the site. The suggestions made so far by early modern travellers and contemporary researchers have not yielded results, and thus it is considered to be lost in the alluvial soils of the Chrisso olive groves. In general, our inability to spot ancient Greek hippodromes is due to their lack of monumental structures, as they were situated in any suitable, naturally landscaped space. The site of Gonia, (...) 1 km north of Itea in the southwestern part of the Kirrha plain, matches the information gleaned from the ancient literary sources for this monument, from Pindar to Pausanias, and brings together all the features required for an ancient hippodrome: the elongated space of about 1 km in length would easily fit the racing grounds themselves, its dimensions corresponding to those known from the Olympic racecourse. The flat area is surrounded by natural slopes on three of its four sides, ideal for spectators' stands, where stone seats have been spotted, carved into the bedrock. At the northern end, the grounds appear amphitheatrical; a roughly‑made column drum found there appears similar to that from the Lykaion racecourse, generally identified as the base of a turning‑post. The new find signals a breakthrough in our knowledge of ancient Greek hippodromes, calls for a re‑evaluation of the question of the Archaic stadium at Delphi and its location, and, further, invites consideration regarding the number of participants in equestrian events. (shrink)

This study examined the link between employees’ adult attachment orientations and perceptions of line managers’ interpersonal justice behaviors, and the moderating effect of national culture. Participants from countries categorized as low collectivistic and high collectivistic completed an online survey. Attachment anxiety and avoidance were negatively related to interpersonal justice perceptions. Cultural differences did not moderate the effects of avoidance. However, the relationship between attachment anxiety and interpersonal justice was non-significant in the Southern Asia cultural cluster. Our findings indicate the importance (...) of ‘fit’ between cultural relational values and individual attachment orientations in shaping interpersonal justice perceptions, and highlight the need for more non-western organizational justice research. (shrink)

We propose that some aspects of language evolved to fit the brain, whereas other aspects co-evolved with the brain. Cladistic analysis indicates that common basic structures of both action and grammar arose in phylogeny six million years ago and in ontogeny before age two, with a shared prefrontal neural substrate. In contrast, mirror neurons, found in both humans and monkeys, suggest that the neural basis for intersubjectivity evolved before language. Natural selection acts upon genes controlling the neural substrates of these (...) phenotypic language functions. (shrink)

A globally expressivist analysis of the indicative conditional based on the Ramsey Test is presented. The analysis is a form of ‘global’ expressivism in that it supplies acceptance and rejection conditions for all the sentence forming connectives of propositional logic (negation, disjunction, etc.) and so allows the conditional to embed in arbitrarily complex sentences (thus avoiding the Frege–Geach problem). The expressivist framework is semantically characterized in a restrictor semantics due to Vann McGee, and is completely axiomatized in a logic dubbed (...) ICL (‘Indicative Conditional Logic’). The expressivist framework extends the AGM (after Alchourron, Gärdenfors, Makinson) framework for belief revision and so provides a categorical (‘yes’–‘no’) epistemology for conditionals that complements McGee’s probabilistic framework while drawing on the same semantics. The result is an account of the semantics and acceptability conditions of the indicative conditional that fits well with the linguistic data (as pooled by linguists and from psychological experiments) while integrating both expressivist and semanticist perspectives. (shrink)

Status in an organization is considered a significant antecedent to an employee's work-related behaviors. However, the relationship between knowledge workers' informal status and "taking charge" has been ignored in previous human resource management (HRM) research. Based on the self-consistency theory, this study examines the mechanisms underlying the influence of knowledge workers’ informal status on taking charge. Data were collected from 337 dyads of employees and their immediate supervisors in 24 enterprises and companies. Based on moderated mediation analysis, results indicated that (...) knowledge workers’ informal status is positively related to taking charge and organization-based self-esteem (OBSE). OBSE fully mediated the relationship between knowledge workers’ informal status and taking charge, while person-job fit (P-J fit) and person-supervisor fit (P-S fit) each moderated the relationship between knowledge workers’ informal status and OBSE, in addition to the indirect effect of knowledge workers’ informal status on taking charge. Specifically, the indirect effect was strongest when P-J fit or P-S fit was high. The theoretical and managerial implications of the findings, limitations of the study, and future research directions are discussed. (shrink)

Multivariate behavioral research often focuses on latent constructs—such as motivation, self-concept, or wellbeing—that cannot be directly observed. Typically, these latent constructs are measured with items in standardized instruments. To test the factorial structure and multidimensionality of latent constructs in educational and psychological research, Morin et al. proposed bifactor exploratory structural equation modeling. This meta-analytic review aimed to estimate the extent to which B-ESEM model fit differs from other model representations, including confirmatory factor analysis, exploratory structural equation modeling, hierarchical CFA, hierarchical (...) ESEM, and bifactor-CFA. The study domains included learning and instruction, motivation and emotion, self and identity, depression and wellbeing, and interpersonal relations. The meta-analyzed fit indices were the χ2/df ratio, the comparative fit index, the Tucker-Lewis index, the root mean square error of approximation, and the standardized root mean squared residual. The findings of this meta-analytic review indicate that the B-ESEM model fit is superior to the fit of reference models. Furthermore, the results suggest that model fit is sensitive to sample size, item number, and the number of specific and general factors in a model. (shrink)

The developing body of empirical work on the "Gettier effect" indicates that, in general, the presence of a Gettier-type structure in a case makes participants less likely to attribute knowledge in that case. But is that a sufficient reason to diverge from a JTB theory of knowledge? I argue that considerations of good model selection, and worries about noise and overfitting, should lead us to consider that a live, open question. The Gettier effect is perhaps so transient, and so sensitive (...) to other, epistemologically-inappropriate factors, that it raises the question of whether it ought to be counted as something to include in our theories -- or as a piece of noise to be excluded from them. (shrink)

The rash of high-profile accounting frauds involving internal corporate accountants calls into question the individual accountant’s perceptions of the ethical climate within their organization and the limits to which these professionals will tolerate unethical behavior and/or accept it as the norm. This study uses social cognitive theory to examine the antecedents of individual corporate accountant’s perceived personal fit with their organization’s ethical climate and empirically tests how these factors impact organizational attitudes. A survey was completed by 203 corporate accountants to (...) assess their perception of relevant variables. The results of the structural equation model indicate three significant antecedents relating to ethical climate fit: higher internal levels of locus of control; greater numbers of prior job changes; and higher perceptions of an increasingly better fit with the firm’s ethical climate. Our results also indicate that higher levels of perceived fit to the ethical climate of a firm are associated with higher levels of perceived job satisfaction and organizational commitment. We also theorize that perceptions of an organization’s ethical climate may be reflections of client narcissism and serve a potential indicator of fraud risk. This is an important topic of study, since current auditing standards call for auditors to examine organizational attitudes toward fraud, but offer minimal guidance in doing so. (shrink)

Wright & Liley contrast their theory that the global dynamics of the EEG are linear with that of Freeman, who hypothesizes an EEG governed by (nonlinear) deterministic-chaotic dynamics. A “call for further discussion” on the part of the authors is made as to how either theory fits with experimental findings indicating that EEG dynamics are non-linear but stochastic.

An exploratory model is presented as a heuristic to indicate how individual perceptions of corporate reputation (before joining) and corporate ethical values (after joining) generate specific individual organizational senses of fit. The paper suggests that an ethical dimension of person-organization fit may go some way in explaining superior acquisition and retention of staff by those who are attracted to specific organizations by levels of corporate social performance consonant with their ethical expectations, or who remain with them by virtue of better (...) personal ethical fits with extant organizational ethical values. Specifically, the model suggests that individual misfits that arise from ethical expectations that either exceed or fall short of perceived organizational ethical performances lead to problematic acquisition and retention behavioural outcomes. (shrink)

An exploratory model is presented as a heuristic to indicate how individual perceptions of corporate reputation (before joining) and corporate ethical values (after joining) generate specific individual organizational senses of fit. The paper suggests that an ethical dimension of person-organization fit may go some way in explaining superior acquisition and retention of staff by those who are attracted to specific organizations by levels of corporate social performance consonant with their ethical expectations, or who remain with them by virtue of better (...) personal ethical fits with extant organizational ethical values. Specifically, the model suggests that individual misfits that arise from ethical expectations that either exceed or fall short of perceived organizational ethical performances lead to problematic acquisition and retention behavioural outcomes. (shrink)

Patients fit with cochlear implants commonly indicate at the time of device fitting and for some time after, that the speech signal sounds abnormal. A high pitch or timbre is one component of the abnormal percept. In this project, our aim was to determine whether a number of years of CI use reduced perceived upshifts in frequency spectrum and/or voice fundamental frequency. The participants were five individuals who were deaf in one ear and who had normal hearing in the other (...) ear. The deafened ears had been implanted with a 18.5 mm electrode array which resulted in signal input frequencies being directed to locations in the spiral ganglion that were between one and two octaves higher than the input frequencies. The patients judged the similarity of a clean signal presented to their implanted ear and candidate, implant-like, signals presented to their normal-hearing ear. Matches to implant sound quality were obtained, on average, at 8 months after device activation and at 35 months after activation. At Time 1, the matches to CI sound quality were characterized, most generally, by upshifts in the frequency spectrum and in voice pitch. At Time 2, for four of the five patients, frequency spectrum values remained elevated. For all five patients F0 values remained elevated. Overall, the data offer little support for the proposition that, for patients fit with shorter electrode arrays, cortical plasticity nudges the cortical representation of the CI voice toward more normal, or less upshifted, frequency values between 8 and 35 months after device activation. Cortical plasticity may be limited when there are large differences between frequencies in the input signal and the locations in the SG stimulated by those frequencies. (shrink)

The purpose of this study was to determine if there is a relationship between the ethical climate of the organization and the development of person-organization fit. The relationship between an individual's stage of moral development and his/her perceived ethical work environment was examined using a sample of 86 working students. Results indicate that a match between individual preferences and present position proved most satisfying. Subjects expressing a match between their preferences for an ethical work climate and their present ethical work (...) climate indicated that they were less likely to leave their positions. (shrink)

With the knowledge that team work is not always associated with high(er) performance, we draw from the Multi-Level Theory of Psychological Contracts, Person-Environment Fit Theory, and Optimal Distinctiveness Theory to study shared perceptions of psychological contract (PC) breach in relation to shared perceptions of complementary and supplementary fit to explain why some teams perform better than other teams. We collected three repeated survey measures in a sample of 128 respondents across 46 teams. After having made sure that we met all (...) statistical criteria, we aggregated our focal variables to the team-level and analysed our data by means of a longitudinal three-wave autoregressive moderated-mediation model in which each relationship was one-time lag apart. We found that shared perceptions of PC breach were directly negatively related to team output and negatively related to perceived team member effectiveness through a decrease in shared perceptions of supplementary fit. However, we also demonstrated a beneficial process in that shared perceptions of PC breach were positively related to shared perceptions of complementary fit, which in turn were positively related to team output. Moreover, best team output appeared in teams that could combine high shared perceptions of complementary fit with modest to high shared perceptions of supplementary fit. Overall, our findings seem to indicate that in terms of team output there may be a bright side to perceptions of PC breach and that perceived person-team fit may play an important role in this process. (shrink)

The VIA Classification of Strengths and Virtues is the most commonly used model of positive personality. In this study, we used two methods of model modification to develop models for two measures of the character strengths, the VIA Inventory of Strengths-Revised and the Global Assessment of Character Strengths. The first method consisted of freeing residual covariances based on modification indices until good fit was achieved. The second was residual network modeling (RNM), which frees residual partial correlations while minimizing a (...) function that penalizes more complex models. Models based on both strategies were developed for the two questionnaires. The resulting structural models were then applied to four other samples. Though both modification procedures achieved good fit in the sample used to develop the models, only RNM resulted in adequate model fit for both measures in all cross-validation samples. This finding suggests RNM is more robust against overfitting than traditional practices. Moreover, the result supports the validity of the three-factor model of character strengths with replicability. (shrink)

The maintenance of cell size homeostasis has been studied for years in different cellular systems. With the focus on ‘what regulates cell size’, the question ‘why cell size needs to be maintained’ has been largely overlooked. Recent evidence indicates that animal cells exhibit nonlinear cell size dependent growth rates and mitochondrial metabolism, which are maximal in intermediate sized cells within each cell population. Increases in intracellular distances and changes in the relative cell surface area impose biophysical limitations on cells, which (...) can explain why growth and metabolic rates are maximal in a specific cell size range. Consistently, aberrant increases in cell size, for example through polyploidy, are typically disadvantageous to cellular metabolism, fitness and functionality. Accordingly, cellular hypertrophy can potentially predispose to or worsen metabolic diseases. We propose that cell size control may have emerged as a guardian of cellular fitness and metabolic activity. Cell size is intimately connected to metabolism and growth rate, which are influenced by mitochondrial activity and biophysical constraints. We discuss that cellular fitness is often cell-size dependent. While the current evidence relies largely on proliferating cells, this connection from cell size to fitness may also help explain metabolic diseases. (shrink)

In the midst of greed, corruption, the economic crash and the general disillusionment of business, current conceptions of leadership, organizational values, and authenticity are being questioned. In this article, we fill a prior research gap by directly exploring the intersection of these three concepts. We begin by delving into the relationship between individual values and organizational values. This analysis reveals that the “value fit” approach to creating authenticity is limited, and also indicates that a deeper exploration of the nature of (...) values and the role of leadership is necessary. More specifically, we propose that organizational values should be viewed as an opportunity for ongoing conversations about who we are and how we connect. Through this type of dialogue which we define as “value through conversation”, we can create what we call poetic organizations. A typology of four interconnected values each of which forms a foundation for the critical questioning and inquiry that might be found in poetic organizations is developed. We suggest that this conceptualization offers a new and dynamic approach for thinking about the relationships between leadership, values, and authenticity and has important implications for both research and practice. (shrink)

It is widely accepted that the way information transfers across networks depends importantly on the structure of the network. Here, we show that the mechanism of information transfer is crucial: in many respects the effect of the specific transfer mechanism swamps network effects. Results are demonstrated in terms of three different types of transfer mechanism: germs, genes, and memes. With an emphasis on the specific case of transfer between sub-networks, we explore both the dynamics of each of these across networks (...) and a measure of their comparative fitness. Germ and meme transfer exhibit very different dynamics across linked networks. For germs, measured in terms of time to total infection, network type rather than degree of linkage between sub-networks is the primary factor. For memes or belief transfer, measured in terms of time to consensus, it is the opposite: degree of linkage trumps network type in importance. The dynamics of genetic information transfer is unlike either germs or memes. Transfer of genetic information is robust across network differences to which both germs and memes prove sensitive. We also consider function: how well germ, gene, and meme transfer mechanisms can meet their respective objectives of infecting the population, mixing and transferring genetic information, and spreading a message. A shared formal measure of fitness is introduced for purposes of comparison, again with an emphasis on linked sub-networks. Meme transfer proves superior to transfer by genetic reproduction on that measure, with both memes and genes superior to infection dynamics across all networks types. What kinds of network structure optimize fitness also differ among the three. Both germs and genes show fairly stable fitness with added links between sub-networks, but genes show greater sensitivity to the structure of sub-networks at issue. Belief transfer, in contrast to the other two, shows a clear decline in fitness with increasingly connected networks. When it comes to understanding how information moves on networks, our results indicate that questions of information dynamics on networks cannot be answered in terms of networks alone. A primary role is played by the specific mechanism of information transfer at issue. We must first ask about how a particular type of information moves. (shrink)

In aging humans, aerobic exercise interventions have been found to be associated with more positive or less negative changes in frontal and temporal brain areas, such as the anterior cingulate cortex (ACC) and hippocampus, relative to no-exercise control conditions. However, individual measures such as gray-matter (GM) probability may afford less reliable and valid conclusions about maintenance or losses in structural brain integrity than a latent construct based on multiple indicators. Here, we established a latent factor of GM structural integrity based (...) on GM probability assessed by voxel-based morphometry, magnetization transfer saturation, and mean diffusivity. Based on this latent factor, we investigated changes in structural brain integrity during a six-month exercise intervention in brain regions previously reported in studies using volumetric approaches. Seventy-five healthy, previously sedentary older adults aged 63–76 years completed an at-home intervention study in either an exercise group (EG;n= 40) or in an active control group (ACG;n= 35). Measures of peak oxygen uptake (VO2peak) taken before and after the intervention revealed a time-by-group interaction, with positive average change in the EG and no reliable mean change in the ACG. Significant group differences in structural brain integrity changes were observed in the right and left ACC, right posterior cingulate cortex (PCC), and left juxtapositional lobule cortex (JLC). In all instances, average changes in the EG did not differ reliably from zero, whereas average changes in the ACG were negative, pointing to maintenance of structural brain integrity in the EG, and to losses in the ACG. Significant individual differences in change were observed for right ACC and left JLC. Following up on these differences, we found that exercising participants with greater fitness gains also showed more positive changes in structural integrity. We discuss the benefits and limitations of a latent-factor approach to changes in structural brain integrity, and conclude that aerobic fitness interventions are likely to contribute to brain maintenance in old age. (shrink)

The purpose of this study was to examine the cross-cultural validity of the Organizational Stressor Indicator for Sport Performers scale by investigating its psychometric properties with Ghanaian footballers. The study particularly sought to assess in the Ghanaian context, 1, the convergence validity and reliability of the OSI-SP scale, 2, the discriminant validity of the OSI-SP scale to understand the applicability of its factor structure, and 3, whether the OSI-SP hypothesized model fits the data collected within the study context. The intensity (...) aspect of the OSI-SP questionnaire was administered to 424 Ghana Premier League male footballers who took part in the 2020/2021 season. Quality control strategies were put in place to ensure consistency across interpreters and as well improve the validity of the data. The results from a multi-factor first-order confirmatory factor analysis showed some level of convergence validity of the OSI-SP scale in the Ghanaian context using football players. Out of the 23 items on the original scale, 20 met the factor loadings criterion. In assessing the discriminant validity of the OSI-SP scale using Heterotrait-monotrait, 50% of the correlation ratios met the criterion for the original 23-item instrument. Comparing the new model with the original model using the Akaike Information Criterion value, the model fit indices for the modified model appeared better than the original model with 23-items. Generally, there was minimal support for the applicability of the OSI-SP instrument across the sample of Ghanaian footballers. The implications of these findings are discussed in detail. (shrink)

This study explores the evolutionary-based hypothesis that facial attractiveness (a guiding force in mate selection) is a cue for physical fitness (presumably an important contributor to mate value in ancestral times). Since fluctuating asymmetry, a measure of developmental stability, is known to be a valid cue for fitness in several biological domains, we scrutinized facial asymmetry as a potential mediator between attractiveness and fitness. In our sample of young women, facial beauty indeed indicated physical fitness. The relationships that pertained to (...) asymmetry were in the expected direction. However, a closer analysis revealed that facial asymmetry did not mediate the relationship between fitness and attractiveness. Unexpected problems regarding the measurement of facial asymmetry are discussed. (shrink)

Although predictive coding may offer a computational principle that unifies perception and action, states with different directions of fit are involved (with indicative and imperative contents, respectively). Predictive states are adjusted to fit the world in the course of perception, but in the case of action, the corresponding states act as a fixed target towards which the agent adjusts the world. This well-recognised distinction helps side-step some problems discussed in the target article.

Previous research has shown positive relationships between fitness level and different cognitive abilities and academic performance. The purpose of this study was to explore the relationships between logical–mathematical intelligence and mathematical competence with physical fitness in a group of pre-adolescents. Sixty-three children from Castro del Río, aged between 11 and 12 years, participated in this research. The Superior Logical Intelligence Test and the EVAMAT 1.0–5 battery were used. Physical fitness was evaluated by the horizontal jump test, the 4×10 meter speed–agility (...) test, and the Course Navette test. The analyses showed positive relationships between physical fitness with logical–mathematical intelligence and mathematical competence. Specifically, linear regression analyzes indicated that the 4×10 speed–agility test significantly predicted mathematical competence and the horizontal jump test significantly predicted logical–mathematical intelligence. These results are in agreement with previous research, highlighting the importance of improving physical fitness from an early age due to its benefits for intellectual and academic development. (shrink)

A chemical compound in the form of graph terminology is known as a chemical graph. Molecules are usually represented as vertices, while their bonding or interaction is shown by edges in a molecular graph. In this paper, we computed various connectivity indices based on degrees of vertices of a chemical graph of indium phosphide. Afterward, we found the physical measures like entropy and heat of formation of InP. Then, we fitted curves between different indices and the thermodynamical properties, (...) namely, heat of formation and entropy. Curve fitting was done in MATLAB through different methods based on linearity and nonlinearity. Furthermore, we depicted our results numerically and graphically. These numerical systems may give an approach to concentrate on the thermodynamical properties of the compound design of InP at an exceptional level that will help understand the connection between framework measurement and these actions. (shrink)

Sustainability managers represent a key stakeholder in implementing and diffusing sustainability initiatives. However, there is a significant gap in the literature examining the impact of greenwashing on sustainability managers. This research examines the effects of greenwashing on sustainability managers' job satisfaction, commitment, turnover intentions, and job performance from a social identity/person–organization (P‐O) fit perspective. Our sample consists of practicing sustainability managers (n = 125) in high‐ (77%) or mid‐level (23%) positions. Results indicate that perceived greenwashing negatively affects the attitudinal outcomes (...) and job performance of sustainability managers. The results also indicate that for sustainability managers whose social responsibility identity is higher than that of their firm, greenwashing has a significant association with lower satisfaction and job performance and higher intentions to leave. However, for managers whose social responsibility identity is lower than that of their firm, employer greenwashing had no effect on the sustainability managers' attitudes, even though they recognized their own poor job performance. The cumulative effect may be a situation in which managers in the best position to enhance a firm's CSR leave the firm, and vice versa. (shrink)

Industry 4.0 has changed the paradigm in the business practice and business model, and digital technology has brought radical transformations to enterprises. To support this transformation, digital leaders are required to help enterprises transform and lead them to a more promising future. Based on job demands-resources model and person-organization fit theory, this study examines the relationship between digital leadership and employee creativity. Based on a sample of 357 employees from various Chinese companies, this study used SPSS 22.0 and MPLUS 7.0 (...) to examine the hypotheses. The findings indicate the following digital leadership has a positive effect on employee creativity. employee job crafting mediate the relationship between digital leadership and employee creativity. person-organization fit positively moderates the relationship between digital leadership and employee job crafting. person-organization fit positively moderates the indirect effect of digital leadership on employee creativity via employee job crafting. The findings reveal the effect mechanism of digital leaders on employee creativity and enrich the literature on antecedents of employee creativity. Practical implications and future research are also discussed. (shrink)

The 2019 Pandemic has forced students to take online classes, increasing their stress levels and negatively impacting their academic performance. This issue urges the development of a mechanism to make online learning more effective in this nerve-racking time. Therefore, the present study has integrated the task technology fit model and the DeLone and McLean Model of Information Systems Success to address the stated issue. The data were collected from 330 and 326 students of top-ranked public and private universities of Punjab, (...) respectively. The theoretical framework was analyzed with the help of structural equation modeling using Analysis of Moment Structures. The findings indicate that overall quality positively predicts performance through the mediating role of user satisfaction and TTF. The overall quality also positively elevates performance through the mediating role of user satisfaction and actual usage of the system. Moreover, perceived usefulness proved to be a moderator between overall quality and user satisfaction. Finally, the expected practical and theoretical implications have also been discussed. (shrink)

This study examines the relationship among the employees–organization pro-environmental values fit, supervisors’ PEVs and employees’ pro-environmental behaviors. Informed by the PEB, organizational values and employee–organization fit literature, we propose and test hypotheses that under egoistic, altruistic and biosphere-value orientations, E–O PEVs fit versus non-fit have significant effects on employees’ private-sphere PEB and public-sphere PEB, identifying supervisors’ PEVs as a moderator. An empirical investigation indicates that the effect of E–O PEVs fit on employees’ private-sphere PEB and public-sphere PEB varies as the (...) value orientation differs. More specifically, under the context of altruistic and biosphere-value orientations, if the organizational PEVs do not match the employees’ PEVs, especially when the former exceeds the latter, employees’ PEB will rise as the organizational PEVs increase. As for egoistic value orientation, when organizational PEVs exceed employees’ PEVs, not only will public-sphere PEB stop decreasing and tend to stabilize, but also private-sphere PEB will rise to a slight degree. Furthermore, compared with altruistic and biospheric values dimensions, supervisors who promote egoistic PEVs will have a more significant effect on the relationship between global E–O PEVs fit and employees’ PEB. Finally, we suggest that the goals of an organization and its supervisors need to be combined within the actual situation of Chinese corporations to truly implement corporate green practices by balancing the profit goal and the environmental goal. (shrink)

IntroductionRegular exercise has long been shown to positively impact the immune system responsiveness and improve mental well-being. However, the putative links between biomarkers of mental health and immune efficiency in exercising subjects have been scarcely investigated. The aim of this study was to verify the effect of a 14-week combined chair-based exercise program on salivary steroid hormones and anti-microbial proteins, functional fitness, and MWB indexes in pre-frail older women.MethodsThe participant women were randomly divided into the exercising group and the non-exercising (...) control group. The pre/post assessment included: salivary anti-microbial proteins lysozyme; and immunoglobulin-A ; salivary steroid hormones of testosterone and cortisol ; functional fitness ; MWB questionnaires.ResultsSignificant differences with large Cohen’s effect sizes were found on increased salivary TT after exercise intervention. The results revealed a decrease in IgA levels after CEP. The increase in subjective happiness levels and decrease of stress perception and depressive state were found after intervention in the CEP group. Robust statistical differences in gait speed and balance tests were also found in the CEP group. In control, COR increased moderately while no changes were found for the other indicators. Correlation analyses showed inter-dependence between pre–post variations of MWB, biochemical indexes, and fitness function.ConclusionThe CEP program was able to improve functional-fitness performance, decrease feelings of stress, and increase happiness. The CEP also induced clinically relevant hormonal and immune responses, which suggests that chair exercises that combine muscular strength, balance, and gait speed training are promising interventions to improve physical and mental health of older pre-frail adults. (shrink)