Adding Involution to Residuated Structures

Two constructions for adding an involution operator to residuated ordered monoids are investigated. One preserves integrality and the mingle axiom x ²x but fails to preserve the contraction property xx ². The other has the opposite preservation properties. Both constructions preserve commutativity as well as existent nonempty meets and joins and self-dual order properties. Used in conjunction with either construction, a result of R.T. Brady can be seen to show that the equational theory of commutative distributive residuated lattices (without involution) is decidable, settling a question implicitly posed by P. Jipsen and C. Tsinakis. The corresponding logical result is the (theorem-) decidability of the negation-free axioms and rules of the logic RW, formulated with fusion and the Ackermann constant t. This completes a result of S. Giambrone whose proof relied on the absence of t.     

Interpersonal attraction as a measure of estimation of cohesiveness in elite volleyball teams

This study examined differences in interpersonal attraction between starters and nonstarters of elite male volleyball teams and the correlation between interpersonal attraction and teams' final place. 106 players from 10 teams of the A1 Greek National Volleyball League completed by a sociometric method an especially developed questionnaire. Subjects were classified as starters and nonstarters by means of a protocol of players' starting status administered to teams' coaches. Analysis showed that the task and the social dimension of interpersonal attraction differed significantly between starters and nonstarters. Starters scored higher than nonstarters on both dimensions of interpersonal attraction. Starters' task dimension of interpersonal attraction was positively correlated with the team's task dimension. Also, the teams' task dimension was positively correlated with teams' final placing, suggesting that, when starters are attracted to each other with regard to the common competitive goal, the team's performance is enhanced and leads to higher scoring.     

More than words: Rethinking sustainability communications through neuroscientific methods

In the era when the overarching problem of climate change, threatening the entire humanity and all life on earth, demands actions and behavioural change from all of the societal agents, including governments, organizations, companies and individuals, the world fails to achieve unity on the matter of existence of the problem, cause of the problem and on the solution of the problem. Since the scientific consensus on climate change is achieved, this article tries to examine why it is so hard to convey the message of needed behavioural change. The neuromarketing study presented in this article focuses on marketing communications that try to convey the message that would lead to the consumers' mental, emotional and behavioural change. Effectiveness of the branded environmental videos was evaluated utilizing the neuroscience approach. Electroencephalogram and an eye-tracking device were used to register the implicit brain reactions of the study participants viewing the branded videos. For comparison reasons, the branded videos selected for the study use two different approaches for conveying the message. The first approach relies on narrative, words and logic, whilst the second one appeals primarily to emotions. The aim of the study was to answer the question whether the words are enough or is there more to it?     

Task switching under predictable and unpredictable circumstances

Task switching was examined under predictable and unpredictable circumstances. In the first two experiments (in predictable conditions), the upcoming task was determined by the trial sequence. In unpredictable conditions, this task was signaled by the stimulus. Under speeded conditions, participants had to judge either the parity of a digit or the vowel/consonant nature of a letter. On bivalent trials, a digit and a letter were presented. On univalent trials, a task-relevant character occurred alongside a task-irrelevant character (e.g., "&"). Task-switching costs were found, and response times were generally slower on bivalent than on univalent trials. This crosstalk effect was reduced when a task repetition was expected. In the final experiment, trial predictability was defined according to whether a task precue was presented prior to or concurrently with the trial stimulus. Contrasting patterns of crosstalk effects were obtained and are discussed in terms of exogenous and endogenous factors that affect task switching.     

Behavioral assessment of auditory processing deficits in schizophrenia: Literature review and suggestions for future research

During the last decades, a considerable number of studies about auditory processing deficits in schizophrenia have been published, some of them using the term of Auditory Processing Disorder (APD). Due to heterogeneous methodology and inconsistent results concrete conclusions may not be straightforward. We focused on studies that used at least one behavioral test for the assessment of auditory processing in schizophrenia, in order to identify new evidence on auditory processing deficits in schizophrenia, and to consider fields for future research. 28 studies met inclusion criteria and are presented in this review. The articles were divided into three groups, those that implemented a test battery approach, those that used only Dichotic Listening (DL), those that used DL along with imaging or electrophysiology techniques. Most of the studies that implemented a test battery showed significant performance differences between patients and controls. This indicates APD presence. Due to the limited number of studies implementing a test battery, this is not conclusive. The majority of all studies that used a DL task showed that patients' performance or laterality was significantly lower than that of controls. Age, duration of illness, total and specific positive symptoms seem to affect significantly DL performance and auditory laterality. The results support the existence of various schizophrenia subgroups that differ in their auditory processing performance, and also have structural and functional specificities. Further research in the field is needed, especially studies that implement a test battery, and studies that examine possible correlations between clinical variables and auditory processing deficits.     

Goal orientations at the global level of generality and in physical education: Their association with self-regulation,affect, beliefs and behaviours

ObjectiveLife skills programs should ensure that their effects generalize across contexts and activities. Three studies are presented examining the construct validity of an instrument assessing global goal orientations in life in conjunction with a measure of goal orientations in physical education. It was also investigated whether the effects of global goal orientations generalize across contexts.MethodParticipants were middle school students (N = 351, N = 580 and N = 658) who completed the two goal orientations instruments, measures of self-regulation, affect and beliefs at the global level of generality and specific to the physical education domain and measures of exercise and academic behaviours.ResultsMulti-sample factor analysis established the factorial validity of the global goal orientations' instrument and the distinctiveness of global goals from achievement goals in physical education. Controlling for social desirability effects, the partial correlations of goal orientations in life with global intrinsic–extrinsic motivation, life satisfaction, pleasant and unpleasant affect in life, purposes of life and perceived purposes of physical education, locomotion and assessment, metacognition in physical education, exercise and academic behaviours, were in the expected direction. In general, global goals made a significant contribution to the explanation of variance of global constructs, while achievement goals in physical education made a unique contribution to the explanation of variance of physical education specific constructs.DiscussionThe results support the construct validity of the instrument assessing global goal orientations in life. They also indicate that global goal orientations are distinct constructs from goal orientations in physical education. The global goal orientations' measure can be particularly useful for practitioners teaching interdisciplinary and life skills.     

Sex and sport-related differences in satisfaction among Greek swimmers

The purpose was to test the applicability of the Scale of Athlete Satisfaction for Greek swimmers and to assess sex and sport-related differences for swimers' mean satisfaction. The sample of 351 Greek swimmers comprised 186 males and 165 females competing in five categories of the National Swimming Championhip in Greece. Their mean age was 16 yr. (SD=2; range 13 to 28 years). A confirmatory factor analysis supported the factorial validity of the scale. Analysis indicated that sex, weekly practice schedule, and sport experience differentiated facets of satisfaction among these swimmers. This scale is reliable and valid for measuring athletes' satisfaction with individual sports.     

Theoretical Orientations of New Zealand Psychologists: An International Comparison

Registered practicing psychologists in New Zealand (n = 221) were surveyed concerning their predominant theoretical orientation. Results were compared with findings obtained among Australian psychologists by Byrne and Reinhart (1990), British psychologists by Garrett and Davis (1995), and North American psychologists by Norcross, Karg, and Prochaska (1997a). The results showed that while New Zealand psychologists use cognitive approaches more often than both British and North American psychologists, they use behavioral and psychodynamic approaches less often. Overall, it was found that the eclectic approach is the most popular theoretical orientation obtained in surveys of Australian, New Zealand, and North American psychologists, in that no group subscribed exclusively to a single theoretical orientation.