Search results for "FRUSTRATION"
showing 10 items of 62 documents
Reducing homework stress by increasing adoption of need-supportive practices: Effects of an intervention with parents
2020
Abstract Homework is widely recognized as a source of stress for both parents and children, but the underlying mechanisms remain unclear. This study tested the hypothesis that the frustration of the basic psychological needs for competence, autonomy and relatedness is the main source of stress and that satisfying these needs should reduce stress and lead to more positive outcomes. Study 1 assessed the associations between parental and child need frustration, homework stress and parental adoption of need-thwarting practices (n = 171 parent/child dyads). Study 2 tested the effectiveness of a four-session parental training (n = 55) program focused on helping parents increase their need-support…
Disordered and Frustrated Spin Systems
2007
A brief review on the effects of quenched disorder on magnetic ordering is given. This disorder can be due to dilution of a ferro- or antiferromagnetic crystal with nonmagnetic atoms, or due to noncrystallinity (amorphous magnetic systems). This disorder in the positions of the magnetic atoms leads to disorder in the exchange interactions between spins. If the disorder is sufficiently weak, the critical temperature of magnetic ordering is somewhat decreased, and the critical behavior may change, but the nature of ordering is maintained. However, if the disorder is sufficiently strong, magnetic long-range order may disappear altogether at a percolation threshold, or a new type of order may a…
The Factor Structure of Medical Tourist Satisfaction: Exploring Key Drivers of Choice, Delight, and Frustration
2021
The current study intends to contribute to a better understanding of the medical tourism experience. In particular, this study uses data from a survey-based study conducted on a sample of 1,209 medical tourists in Croatia. On the one hand, this study aims to explore and shed light on the decision-making process of medical tourists, and, on the other hand, to reveal which elements of both the medical institution and the destination where it is located, have largest potentials to drive medical tourist delight and/or frustration, in accordance with the three-factor theory of customer satisfaction.
Psychological Contract Violation or Basic Need Frustration? Psychological Mechanisms Behind the Effects of Workplace Bullying
2021
Workplace bullying is a phenomenon that can have serious detrimental effects on health, work-related attitudes, and the behavior of the target. Particularly, workplace bullying exposure has been linked to lower level of general well-being, job satisfaction, vigor, and performance and higher level of burnout, workplace deviance, and turnover intentions. However, the psychological mechanisms behind these relations are still not well-understood. Drawing on psychological contract and self-determination theory (SDT), we hypothesized that perceptions of contract violation and the frustration of basic needs mediate the relationship between workplace bullying exposure and well-being, attitudinal, a…
Twin Peaks: Fire Walk With Me (1992) and David Lynch's Aesthetics of Frustration
2010
This article focuses on Twin Peaks: Fire Walk With Me (David Lynch,1992), the prequel to the TV series produced by Mark Frost and David Lynch (1990-1991), which represents a turning point in Lynch's filmography. The author argues that the film's aesthetics frustrate viewer expectations, and especially the fan of the TV series, by addressing the issue of the film's relation to the TV series. Special attention is payed to the aesthetics of time passing and to the accumulation of unusual signs in the first part of the film, with reference to Deleuze and Michel Guiomar, and the way they lead the spectator, fan or neophyte, to expect something Fantastic to happen. The article then addresses the …
Monte Carlo simulation of the glass transition in polymeric systems: Recent developments
1995
Abstract The bond fluctuation model on square and s.c. lattices is used as a coarse-grained model for flexible polymers in dense melts. Using an energy that favours long bonds, a conflict is created between the tendency of the bonds to stretch at low temperatures and packing constraints. This simple concept of ‘geometric frustration’ leads to glass transition. Both static and dynamic properties of this model are investigated by Monte Carlo simulations, paying attention to effects found by varying the cooling rate and the chain length N of the polymers. In two and three spatial dimensions an effective (cooling-rate dependent) glass transition temperature T g can be defined, where the system …
Self-assembly concepts for multicompartment nanostructures.
2015
Compartmentalization is ubiquitous to many biological and artificial systems, be it for the separate storage of incompatible matter or to isolate transport processes. Advancements in the synthesis of sequential block copolymers offer a variety of tools to replicate natural design principles with tailor-made soft matter for the precise spatial separation of functionalities on multiple length scales. Here, we review recent trends in the self-assembly of amphiphilic block copolymers to multicompartment nanostructures (MCNs) under (semi-)dilute conditions, with special emphasis on ABC triblock terpolymers. The intrinsic immiscibility of connected blocks induces short-range repulsion into discre…
I. Glass Transition. Theoretical concepts on the glass transition of polymers and their test by computer simulation
1996
Various organic molecules, in particular polymers, are extremely good glass formers and allow the study of supercooled melts near the glass transition in metastable equilibrium. Theories of the glass transition imply such an equilibrium (e.g. mode-coupling theory, or Gibbs-di Marzio theory) and can hence be tested in these systems. Simplified lattice models for polymer melts (e.g. the bond fluctuation model) have been developed that can very efficiently be studied by Monte-Carlo simulation, and although they fail to accurately describe the local structure, they describe many features of the experiments very well. In this model, the mechanism of the glass transition is a competition between …
Bistable Hofmann-Type FeII Spin-Crossover Two-Dimensional Polymers of 4-Alkyldisulfanylpyridine for Prospective Grafting of Monolayers on Metallic Su…
2021
Aiming at investigating the suitability of Hofmann-type two-dimensional (2D) coordination polymers {FeII(Lax)2[MII(CN)4]} to be processed as single monolayers and probed as spin crossover (SCO) junctions in spintronic devices, the synthesis and characterization of the MII derivatives (MII = Pd and Pt) with sulfur-rich axial ligands (Lax = 4-methyl- and 4-ethyl-disulfanylpyridine) have been conducted. The thermal dependence of the magnetic and calorimetric properties confirmed the occurrence of strong cooperative SCO behavior in the temperature interval of 100-225 K, featuring hysteresis loops 44 and 32.5 K/21 K wide for PtII-methyl and PtII/PdII-ethyl derivatives, while the PdII-methyl deri…
Online Expression, Personal Cybersecurity Costs, and the Specter of Cybercrime
2020
The internet is used increasingly as a platform both for free expression and e-commerce. The internet has unique security and privacy risks. Such risks include the threat of criminal cyberattacks, including hacking and doxing. Internet users have a variety of attitudes towards the security and privacy risks involved with using the internet and distinct concerns and behaviors with regard to expressing themselves online. In order to mitigate the security and privacy risks of the internet, some internet users spend valuable time thinking about and configuring the security settings of their devices. They may also have different attitudes towards personal spending of money for cybersecurity prod…