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1.
J Exp Psychol Gen ; 151(8): 1999-2006, 2022 Aug.
Article in English | MEDLINE | ID: mdl-34990158

ABSTRACT

Self-control refers to the ability to choose options with greater long-term benefits over more immediately tempting options. For personal choices that do not affect others, self-control is often conceptualized as morally irrelevant. However, four focal experiments and five supplemental experiments demonstrate that self-control success in apparently nonmoral domains enhances evaluations of moral character, but self-control failure is not regarded as evidence of moral corruption. This asymmetry supports our moral-ability hypothesis: self-control is regarded as the ability to bring about intended outcomes, which is believed necessary for moral goodness but not moral badness. (PsycInfo Database Record (c) 2022 APA, all rights reserved).


Subject(s)
Character , Morals , Humans
2.
Mark Lett ; 31(4): 429-439, 2020.
Article in English | MEDLINE | ID: mdl-32836798

ABSTRACT

We propose that autonomy is a crucial aspect of consumer choice. We offer a definition that situates autonomy among related constructs in philosophy and psychology, contrast actual with perceived autonomy in consumer contexts, examine the resilience of perceived autonomy, and sketch out an agenda for research into the role of perceived autonomy in an evolving marketplace increasingly characterized by automation.

3.
Sci Rep ; 8(1): 2517, 2018 02 06.
Article in English | MEDLINE | ID: mdl-29410502

ABSTRACT

Manipulating topological disclination networks that arise in a symmetry-breaking phase transformation in widely varied systems including anisotropic materials can potentially lead to the design of novel materials like conductive microwires, self-assembled resonators, and active anisotropic matter. However, progress in this direction is hindered by a lack of control of the kinetics and microstructure due to inherent complexity arising from competing energy and topology. We have studied thermal and electrokinetic effects on disclinations in a three-dimensional nonabsorbing nematic material with a positive and negative sign of the dielectric anisotropy. The electric flux lines are highly nonuniform in uniaxial media after an electric field below the Fréedericksz threshold is switched on, and the kinetics of the disclination lines is slowed down. In biaxial media, depending on the sign of the dielectric anisotropy, apart from the slowing down of the disclination kinetics, a nonuniform electric field filters out disclinations of different topology by inducing a kinetic asymmetry. These results enhance the current understanding of forced disclination networks and establish the presented method, which we call fluctuating electronematics, as a potentially useful tool for designing materials with novel properties in silico.

4.
Behav Brain Sci ; 41: e163, 2018 01.
Article in English | MEDLINE | ID: mdl-31064475

ABSTRACT

We applaud Boyer & Petersen's (B&P's) approach to a fascinating topic. Their arguments against understanding folk-economic beliefs (FEBs) in terms of economic ignorance or specific biases, however, are overly pessimistic. Economic theory is the reason beliefs about such disparate phenomena are labeled "economic" and "folk." More importantly, some FEBs are better understood by examining current rather than ancestral contexts of exchange.


Subject(s)
Biological Evolution , Cognition
5.
J Pers Soc Psychol ; 113(5): 671-696, 2017 Nov.
Article in English | MEDLINE | ID: mdl-28726437

ABSTRACT

Profit-seeking firms are stereotypically depicted as immoral and harmful to society. At the same time, profit-driven enterprise has contributed immensely to human prosperity. Though scholars agree that profit can incentivize societally beneficial behaviors, people may neglect this possibility. In 7 studies, we show that people see business profit as necessarily in conflict with social good, a view we call anti-profit beliefs. Studies 1 and 2 demonstrate that U.S. participants hold anti-profit views of real U.S. firms and industries. Study 3 shows that hypothetical organizations are seen as doing more harm when they are labeled "for-profit" rather than "non-profit," while Study 4 shows that increasing harm to society is viewed as a strategy for increasing a hypothetical firm's long-run profitability. Studies 5-7 demonstrate that carefully prompting subjects to consider the long run incentives of profit can attenuate anti-profit beliefs, while prompting short run thinking does nothing relative to a control. Together, these results suggest that the default view of profits is zero-sum. While people readily grasp how profit can incentivize firms to engage in practices that harm others, they neglect how it can incentivize firms to engage in practices that benefit others. Accordingly, people's stereotypes of profit-seeking firms are excessively negative. Even in one of the most market-oriented societies in history, people doubt the contributions of profit-seeking industry to societal progress. (PsycINFO Database Record


Subject(s)
Attitude , Commerce , Morals , Social Behavior , Social Perception , Adult , Female , Humans , Male , Middle Aged , United States
6.
Sci Rep ; 7: 40059, 2017 01 05.
Article in English | MEDLINE | ID: mdl-28054600

ABSTRACT

For isotropic fluids, classical nucleation theory predicts the nucleation rate, barrier height and critical droplet size by ac- counting for the competition between bulk energy and interfacial tension. The nucleation process in liquid crystals is less understood. We numerically investigate nucleation in monolayered nematogenic films using a mesoscopic framework, in par- ticular, we study the morphology and kinetic pathway in spontaneous formation and growth of droplets of the stable phase in the metastable background. The parameter κ that quantifies the anisotropic elastic energy plays a central role in determining the geometric structure of the droplets. Noncircular nematic droplets with homogeneous director orientation are nucleated in a background of supercooled isotropic phase for small κ. For large κ, noncircular droplets with integer topological charge, accompanied by a biaxial ring at the outer surface, are nucleated. The isotropic droplet shape in a superheated nematic background is found to depend on κ in a similar way. Identical growth laws are found in the two cases, although an unusual two-stage mechanism is observed in the nucleation of isotropic droplets. Temporal distributions of successive events indi- cate the relevance of long-ranged elasticity-mediated interactions within the isotropic domains. Implications for a theoretical description of nucleation in anisotropic fluids are discussed.

7.
Soft Matter ; 11(28): 5697-704, 2015 Jul 28.
Article in English | MEDLINE | ID: mdl-26082951

ABSTRACT

A dense supercooled colloidal melt in forward shear from a quiescent state shows overshoot in the shear stress at 10% strain with an unchanged fluid structure at equal stress before and after overshoot. In addition, we find an overshoot in the normal stress with a monotonic increase in the osmotic pressure at an identical strain. The first and second normal stresses become comparable in magnitude and opposite in sign. A functional dependence of the steady state stress and osmotic pressure with the Péclet number demonstrates the signature of crossover between Newtonian and nearly-Newtonian regimes. Moreover, instantaneous shear reversal from a steady state exhibiting the Bauschinger effect, where a strong history dependence is observed depending on the time of the flow reversal. The distribution of the particulate stress and osmotic pressure at the point of the flow reversal is shown to be a signature of the subsequent response. We link the history dependence of the stress-strain curves to changes in the fluid structure measured through the angular components of the radial distribution function. A uniform compression in the transition from forward to reversed flowing states is found.

8.
J Chem Phys ; 142(22): 224107, 2015 Jun 14.
Article in English | MEDLINE | ID: mdl-26071701

ABSTRACT

We formulate and study computationally the fluctuating compressible Navier-Stokes equations for reactive multi-species fluid mixtures. We contrast two different expressions for the covariance of the stochastic chemical production rate in the Langevin formulation of stochastic chemistry, and compare both of them to predictions of the chemical master equation for homogeneous well-mixed systems close to and far from thermodynamic equilibrium. We develop a numerical scheme for inhomogeneous reactive flows, based on our previous methods for non-reactive mixtures [Balakrishnan , Phys. Rev. E 89, 013017 (2014)]. We study the suppression of non-equilibrium long-ranged correlations of concentration fluctuations by chemical reactions, as well as the enhancement of pattern formation by spontaneous fluctuations. Good agreement with available theory demonstrates that the formulation is robust and a useful tool in the study of fluctuations in reactive multi-species fluids. At the same time, several problems with Langevin formulations of stochastic chemistry are identified, suggesting that future work should examine combining Langevin and master equation descriptions of hydrodynamic and chemical fluctuations.

9.
J Chem Phys ; 138(12): 12A513, 2013 Mar 28.
Article in English | MEDLINE | ID: mdl-23556764

ABSTRACT

We study the nonlinear rheology of a glass-forming binary mixture under the reversal of shear flow using molecular dynamics simulations and a schematic model of the mode-coupling theory of the glass transition (MCT). Memory effects lead to a history-dependent response, as exemplified by the vanishing of a stress-overshoot phenomenon in the stress-strain curves of the sheared liquid, and a change in the apparent elastic coefficients around states with zero stress. We investigate the various retarded contributions to the stress response at a given time schematically within MCT. The connection of this macroscopic response to single-particle motion is demonstrated using molecular-dynamics simulation.


Subject(s)
Molecular Dynamics Simulation , Glass/chemistry , Rheology
10.
Electron. j. biotechnol ; 14(1): 10-11, Jan. 2011. ilus, tab
Article in English | LILACS | ID: lil-591928

ABSTRACT

A simple miniprep based on early elimination of highly acidic and proteinaceous mucilages through ethanol washing of the tissue homogenates has been developed for the extraction of genomic DNA from mature leaves and seeds of Corchorus spp. As compared to high cetyltrimethylammonium bromide (CTAB)-NaCl DNA extraction followed by ethanol-based removal of remnant mucilages from the DNA pellet, this simple miniprep consistently and reproducibly recovers high amounts of DNA with good spectral qualities at A260/A280 and A260/A230. The purified DNA is efficiently digested by restriction endonucleases, and is suitable for PCR amplification of nuclear microsatellites with expected allele sizes.


Subject(s)
Corchorus/cytology , Corchorus/genetics , DNA , Plant Structures/genetics , Plant Structures/chemistry , Ethanol/metabolism , Ethanol/chemistry
11.
J Adolesc ; 33(1): 111-23, 2010 Feb.
Article in English | MEDLINE | ID: mdl-19570572

ABSTRACT

A mediation model using a sample of 1059 adolescents (56% girls; M age=16.02, SD=1.37) tested relations between parenting, adolescent moral identity, and the formation of psychological distance towards others. In short, adolescent moral identity mediated relations between parenting and the ways in which adolescents oriented others in their psychological space. Specifically, adolescent-report parenting style dimensions (responsiveness, autonomy-granting, and demandingness) were positively related to the formation of both private and public moral identity dimensions (internalization and symbolization), which were in turn associated with a tendency to construct psychological distance towards others (negatively with social dominance orientation and positively with the circle of moral regard). Therefore, one way parents may be able to influence how adolescents relate to their peers is by fostering a sense of moral identity in their children through authoritative parenting.


Subject(s)
Affect , Interpersonal Relations , Morals , Parent-Child Relations , Parenting , Psychological Distance , Social Behavior , Social Identification , Adolescent , Female , Humans , Male , Social Dominance , Surveys and Questionnaires
12.
Assessment ; 15(4): 493-510, 2008 Dec.
Article in English | MEDLINE | ID: mdl-18539783

ABSTRACT

Two studies investigated the psychometric properties of a self-report measure of commonly recognized forms of aggression (FOA) that could be used to efficiently gather aggression data in large samples. EFA and CFA in Study 1 suggested that a five-factor model (Physical, Property, Verbal, Relational, and Passive-Rational) best represented the data across high school and college students. However, factor analyses in Study 2 using an ethnically diverse university sample revealed a four-factor solution (combining Physical and Property items). As a confirmation of the construct validity of FOA, physical and property aggression were lower, and verbal and passive-rational aggression were higher in college versus high school students. Gender differences were observed across FOA subscales, except relational aggression. FOA subscales correlated as expected with other anger and personality scales. Overall, the data revealed adequate psychometric properties for the FOA and suggest that current category distinctions (e.g., direct-indirect) may not adequately account for different forms of aggression. Researchers may want to reevaluate these categories.


Subject(s)
Aggression/psychology , Psychometrics , Self-Assessment , Students/statistics & numerical data , Verbal Behavior , Adolescent , Age Factors , Female , Humans , Male , Mental Health , Psychological Tests , Sex Factors , Young Adult
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