998 resultados para psychological warfare


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This qualitative study investigated personal and psychological aspects of big wave riders. A cross-sectional design with non probability purposive sampling was used to gain personal interviews with 32 elite surfers who regularly ride big, life threatening waves. Each athlete was asked three open questions: 1. What do you think are the most important qualities and attributes a surfer needs for riding big waves? 2. What type of mindset is best for riding big waves?, and 3.What motivates you to ride big waves? Content analysis of the taped interview transcripts revealed seven key qualities and attributes including having a thrill seeking, confident and goal oriented personality, a high level of mental strength and control, and an intimate relationship with the ocean. The best mindset included an individually defined arousal level, a committed attitude, and a simple, yet highly aware, focus. Motivations were primarily intrinsic, though drives indicative of a behavioral addiction to the act of riding big waves also emerged. Evidence of common developmental stages for riding big waves also arose from the interviews. Optimal mental approach and preparation techniques are discussed that will enable big wave riders, and other extreme athletes, to more safely and successfully manage extreme situations.

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Background: Obesity is a well-known cause of cardiovascular disease burden and premature death, but effects on depressive symptoms remain equivocal. Depressive symptoms may be more common among the obese individuals who perceive themselves as overweight, rather than those who perceive themselves as having an acceptable weight. Our aim was to determine whether weight status and weight perceptions are independently associated with psychological distress.

Methods: We conducted a cross-sectional study using data from the Australian National Health Survey 2004–2005 (N=17 253). All variables were collected by self-report. Adjusted multinomial logistic regression analysis was conducted to generate prevalence odds ratios with 95% confidence intervals (95% CI) for medium (Kessler Psychological Distress Scale (K10) scores of 20–29) and high (K10 scores of 30–50) psychological distress (compared with K10 scores of 10–19 as the reference) associated with weight status (standard body mass index (BMI) cutoffs for underweight, overweight and obesity vs normal weight), weight perception (perceived underweight and overweight vs acceptable weight) and weight misperception (incorrect with BMI vs correct with BMI) adjusting for numerous important covariates.

Results: Overweight and underweight perception increased the odds of medium (40 and 50%) and high (50 and 120%) psychological distress, whereas weight status and weight misperception were not associated with psychological distress in adjusted analysis. Gender, alcohol consumed per week and post-school education were not significant covariates (at P<0.10 level).

Conclusions: Overweight and underweight perception rather than weight status or weight misperception are significant risk factors associated with medium and high psychological distress prevalence and effects appear to be uniform for men and women. Well-designed prospective studies are still needed to determine whether weight perceptions cause psychological distress, and if so, whether symptoms are significantly reduced following effective intervention.

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This paper examines the emergent security risk that information warfare poses to critical infrastructure systems, particularly as governments are increasingly concerned with protecting these assets against attack or disruption. Initially it outlines critical infrastructure systems and the notion of information warfare. It then discusses the potential implications and examining the concerns and vulnerabilities such cyber attacks would pose, utilising exemplar online attack occurrences. It then examines the current Australian situation before suggesting some considerations to mitigate the potential risk that information warfare poses to critical infrastructure systems, and by association: government, industry and the wider community.

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Purpose – The overall purpose of this paper is to examine the extent to which breaches in psychological contracts and perceptions of organizational fairness account for variations in job stress experienced by operational police officers (as measured by psychological distress and employee performance), after controlling for the variance associated with more established job stressors (i.e. job demands, job control and social support).

Design/methodology/approach – This study is based on data collected through a self-report survey involving operational members of a large Australian police force (n=582).

Findings – Results of hierarchical multiple regression analyses indicate that vast majority of explained variance in psychological distress and extra-role performance is attributed to the additive effects of demand, control, and support. Furthermore, only one of the social exchange dimensions (interpersonal fairness) is predictive of either target variable.

Research limitations/implications – The limitations that need to be taken into account are the cross-sectional nature of the study design and the focus on a single police service.

Practical implications – Despite the generally weak support for the social exchange variables, there are signs that dimensions of justice (particularly interpersonal justice) should be included in future police-stress investigations. The results also suggest that job characteristics such as job demand, job control and social support should be taken into account when developing strategies to prevent and/or reduce chronic job stress in policing services.

Originality/value – This is one of the first studies to examine the relationships between psychological contract breach, perceptions of fairness and police stress.

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This paper critically examines an analytical tool - partial least squares regression, or P LS - that is increasingly being used in the academic business literature to validate measures of psychological constructs, and to test hypotheses based on these. The paper provides a contextual and historical review of the resurgence of P LS, and explores several of the claims made by its developers and supporters when it was first promoted in the 1980s, and, more recently, when it reappeared in the information systems literature. Many claims appear plausible but rest on non-mainstream uses of terms and concepts taken from the psychometric field. The paper also canvasses why P LS is a poor analytical tool for research that involves psychological constructs.

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This thesis investigates the relationship between analysis and insight in Prasarigika Madhyamika Buddhism. More specifically it asks whether analysis is a necessary and/or a sufficient condition for the generation of insight. The thesis is divided into six chapters which include an introduction, an appendix which outlines Prasangika and Svatantrika views regarding the syllogism (svatantra) and a conclusion. The remaining chapters seek to demonstrate that analysis for the Prasarigika and the Tibetan Geluk-ba school is a necessary, but not a sufficient condition for the arising of insight. Chapter one is an investigation of certain Western psychological theories which deal with the effects on the mind of cogitating upon contradictions. Though the psychological theories are only suggestive, this chapter will lend support to the claim a) of the Prasaiigika, that analysis generates an altered state of consciousness; and b) that analysis may be a necessary and sufficient condition for the generation of insight. Chapter two seeks to construct a logico-psychological model of how insight is generated. In this model it is argued that insight is a conceptual and intuitive experience: i.e. non-inferential, and that all thought comes via the intuition. This model argues that analysis is a necessary, but not a sufficient condition for the generation of insight. In chapter three an investigation of the writings of Dzong-ka-ba (Tsong-Kha-pa) is undertaken in order to ascertain how the Tibetan Geluk-ba (dGe lugs pa) school regard the relationship between analysis and insight. The model of chapter two will be compared with the Tibetan Geluk-ba accounts to gauge its explanatory power and correspondence with the Geluk-ba views. Chapter four is an investigation of the writings of certain Western scholars. This investigation seeks to ascertain how these scholars may have regarded the relationship between analysis and insight. The chapter then compares these views with the model developed in chapter two.

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This thesis concerns the psychological contracts of employees. A psychological contract is an employee’s perception that: 1) an employer has certain obligations to them, and 2) in return, they have obligations as employees. A psychological contract is therefore a set of subjectively perceived reciprocal obligations. The psychological foundations of this construct are linked with cognitive schemas and social exchange theories. While the concept of psychological contracts was first proposed in the early 1960s, it has only been operationalised for empirical study in the last decade. The purpose of the thesis was to increase the understanding of the content and structure of employee psychological contracts and their links with career cognitions. The specific aims of the thesis were to: 1) examine the relational-transactional dimensions of psychological contracts, 2) develop a comprehensive set of workplace obligations for use with employees, 3) consider alternative dimensions of employee psychological contracts, 4) demonstrate reciprocity between obligations, and 5) determine whether psychological contracts directly affect career cognitions. The thesis contains four quantitative studies. Data were collected using self-report questionnaires that contained both established and new measures. Most participants were employees from a large insurance company, government vocational services or educational institutions. The analyses included canonical correlation, factor analysis, development of measurement models and structural analysis. The findings did not strongly support a distinction between relational and transactional obligations. Instead, a five-factor model of psychological contracts emerged from an expanded set of workplace obligations when it was used with two separate employee samples. This model demonstrated reciprocal relationships between the dimensions of employee and employer obligations. It was also found that alternative dimensions of the psychological contract have a direct influence on organisational commitment and career satisfaction. The thesis supports several general conclusions about the nature of employee psychological contracts, appropriate measures and future research. General workplace obligations that apply across different workplaces can be found, and these should continue to be refined. Such workplace obligations group in meaningful ways, and they can be usefully studied in terms of employer support and employee attitudes to work, rather than in terms of relational and transactional dimensions. Furthermore, this thesis shows that reciprocity in psychological contracts can be demonstrated by correlations between dimensions of employee and employer obligations. The measure used for studying reciprocity was new, and it requires further work. However, this measure is as reliable and valid as any currently available. Measurement is the single most urgent issue facing researchers. Finally, this thesis provides sufficient empirical evidence to support the claim that psychological contracts are an important variable for the understanding of careers.

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Aims to identify and describe the psychological experiences of breast and prostate cancer patients and their partners, in terms of adjustment, coping and support issues.