962 resultados para Nonequilibrium Transitions


Relevância:

20.00% 20.00%

Publicador:

Resumo:

Comunicação apresentada na 44th SEFI Conference, 12-­15 September 2016, Tampere, Finland

Relevância:

20.00% 20.00%

Publicador:

Resumo:

The present study examined the longer-term implications of adolescent positive mental health for successful young adult transitions. Positive mental health in adolescence was defined by indicators roughly corresponding to Seligman’s positive psychology PERMA framework (positive emotional experiences, engagement, relationships, purpose, and accomplishment), with the addition of health. Data were drawn from one of Australia’s longest running studies of social and emotional development (Australian Temperament Project, est. 1983, N = 2443), which has followed a large representative community sample from infancy to 27–28 years of age. In the analyzed sample of n = 999, positive mental health at 15–16 years was associated with indicators of career progression (educational attainment and perceived competence) and taking on citizenship responsibilities (volunteering and civic activities) over a decade later at 27–28 years. Mental health problems in adolescence were more relevant to establishing romantic partnerships in young adulthood: adolescent antisocial behaviors predicted higher likelihood of being in a relationship, while depressive symptoms predicted lower quality partnerships. The results suggest that successful transitions into young adult roles and responsibilities may be facilitated by targeted mental health promotion interventions designed to both foster positive mental health and address mental health difficulties in adolescence.

Relevância:

20.00% 20.00%

Publicador:

Resumo:

In this evaluation of New Zealand audit going concern standards, we ask what underlying messagescan be found in these professionally-designed standards. To do so, we apply a linguistic taxonomy ofcommunicative acts to the three sets of going concern standards, and 469 speech acts, that have overtime been produced. This taxonomy developed by Bach and Harnish (1979) is based on Austin’s wellknownlinguistic principle of the illocutionary act, which is concerned with the force of a text. Ouranalysis is further informed by our evaluation of the New Zealand socio-political–economic contextand from the results of an interview with one of the standard setters. We conclude that among otherpossible rationales, a lack of courtroom guidance, a defensive posture and a marketing exercise instandard expansion may explain the force of the text that we found. Our results also reveal a professionwhich, in this text at least, situates itself ‘above public debate’, conveying a sense of ‘expertise’ indevised ‘truths’ about the obligations of the auditor and others.

Relevância:

20.00% 20.00%

Publicador:

Resumo:

It is shown that the double-exchange Hamiltonian, with weak antiferromagnetic interactions, has a rich variety of first-order transitions between phases with different electronic densities and/or magnetizations. The paramagnetic-ferromagnetic transition moves towards lower temperatures, and becomes discontinuous as the relative strength of the double-exchange mechanism and antiferromagnetic coupling is changed. This trend is consistent with the observed differences between compounds with the same nominal doping, such as La_(2/3)Sr_(1/3)MnO_(3) and La_(2/3)Ca_(1/3)MnO_(3). Our results suggest that, in the low doping regime, a simple magnetic mechanism suffices to explain the main features of the phase diagram.

Relevância:

20.00% 20.00%

Publicador:

Resumo:

Book review of Educators, professionalism and politics: global transitions, national spaces and professional projects. World Yearbook of Education 2013, edited by Terri Seddon and John S. Levin, New York and Oxon, Routledge, 2013, ISBN 978-0-415-52914-3.

Relevância:

20.00% 20.00%

Publicador:

Resumo:

The Sixth Oceanic Conference on International Studies (OCIS) was held in Melbourne, Australia between 9 and 11 July 2014. The conference was hosted by the School of Social and Political Sciences at University of Melbourne and supported by the Australian Institute of International Affairs, Deakin University, La Trobe University, Monash University, RMIT University and Swinburne University. The Sixth OCIS had a broad organizing theme of ‘transition’ focused on the changing balances of power shaping the Oceanic and Asia Pacific regions and related questions of social and political change in this context. Over 200 papers were presented at the conference, reflecting a wide variety of issues in international studies and related fields of scholarship. Amongst this diversity, the conference did have some recurring themes relating to great power rivalry, the influence of China, and the implications of multilateral frameworks and key bilateral relationships on the security and economic dynamics of the region. Significant attention was also devoted to analysing the foreign policies and political institutions for managing problems of peacebuilding, terrorism, gender inequality and sexual discrimination, people movements, climate change and financial instability at the regional and global levels. This special issue of Global Change, Peace and Security reflects these themes of transition in the Asia Pacific and comprises a diverse array of contributions from scholars attending this conference.

Relevância:

20.00% 20.00%

Publicador:

Resumo:

Both Attention-Deficit/Hyperactivity Disorder (AD/HD) and divorce are very prevalent in western societies, and they may occur together. AD/HD is generally viewed as a neurobiological disorder, which has led to a commonly held belief that social-environmental factors play little role in the symptom profile of children diagnosed with the disorder. This study investigated the association between parental divorce, remarriage, multiple transitions, the quality of relationships with family members and the psychological well-being of children and adolescents with AD/HD. First, differences in children’s AD/HD symptom profiles in relation to parents’ divorce status (single/multiple divorce) and family composition (single parent/stepfamily) were examined. Second, the association between the quality of children’s relationships with each family member and parents’ marital status (divorced/non-divorced) and family composition was investigated. In addition, age, gender and AD/HD subtype differences were assessed. Third, the association between the quality of children’s interactions with family members and children’s AD/HD symptom profile was explored. No significant differences in children’s behavioural profiles were found in terms of parents’ divorce status. Living in stepfamilies was associated with greater AD/HD severity and social malfunctioning. Disruptive parent–child and sibling relationships were found to be related to children’s age, gender, AD/HD subtype and parents’ marital status. Further, poor interactions with family members correlated with children’s AD/HD severity and psychological well-being. In summary, divorce, remarriage and the quality of relationships with family members are important correlates of the symptom profile of children with AD/HD, and this emphasises the need for special treatment modules for these families.

Relevância:

20.00% 20.00%

Publicador:

Resumo:

This book comes from a research project titled ‘Lifelong Learning? Neighbourhood Houses, Adult Learning and Transitions to Higher Education’ (T Ollis, Starr, Ryan, Angwin, & Harrison, 2016). This research has examined adult learning in the context of Neighbourhood Houses in the regions of Geelong and South Western Victoria.The research was conducted in 2015 and 2016 and sought to examine the learning experiences of adult learners who participate in the education programs of Neighbourhood Houses. The focus was on second chance learners and their transition pathways to higher education such as TAFE and University. A second group of learners were identified during the research process – later life learners. These learners were engaging with Neighbourhood Houses for personal interest learning and social and community connection. This small book provides a snapshot of the stories of learners who were involved in this research. It tells the lived stories of the participants, which is important as learning and education are connected with the ongoing development of ourselves as human beings. Learning is essential to our personhood and impacts on adults in terms of their welfare, health and prosperity over a lifetime. Many of the learners’ stories outlined in this book reveal checkered histories of education. Some have experienced learning difficulties, others have experienced family trauma that prevented them from finishing secondary schooling. Some of the stories describe issues related to reskilling or retraining in later life, responding to industry changes and work in the Greater Geelong and South West regions. Others were pursuing recreation and social connection and came to the Neighbourhood Houses to learn crafts, writing, photography and computer literacy skills. In almost all accounts of learning in this book, individuals had experienced less social isolation by being connected to others in the unique social environment of Neighbourhood houses.

Relevância:

20.00% 20.00%

Publicador:

Resumo:

The changing role of agriculture is at the core of transition pathways in many rural areas. Productivism, post-productivism and multifunctionality have been targeted towards a possible conceptualization of the transition happening in rural areas. The factors of change, including productivist and post-productivist trends, are combined in various ways and have gone in quite diverse directions and intensities, in individual regions and localities. Even, in the same holding, productivist and post-productivist strategies can co-exist spatially, temporally, structurally, leading to a higher complexity in changing patterns. In south Portugal extensive landscapes, dominated by traditionally managed agro-forestry systems under a fuzzy land use pattern, multifunctionality at the farm level is indeed conducted by different stakeholders whose interests may or not converge: a multifunctional land management may indeed incorporate post-productivist and productivist agents. These stakeholders act under different levels of ownership, management and use, reflecting a particular land management dynamic, in which different interests may exist, from commercial production to a variety of other functions (hunting, bee-keeping, subsistence farming, etc.), influencing management at the farm level and its supposed transition trajectory. This multistakeholder dynamic is composed by the main land-manager (the one who takes the main decisions), sub land-managers (land-managers under the rules of the main land-manager), workers and users (locals or outsiders), whose interest and action within the holding may vary differently according to future (policy, market, etc.) trends, and therefore reflect more or less resilient systems. The goal of the proposed presentation is to describe the multi-stakeholder relations at the farm level, its spatial expression and the factors influencing the land management system resilience in face of the transition trends in place.

Relevância:

10.00% 10.00%

Publicador:

Resumo:

Visible, near-infrared, IR and Raman spectra of magnesian gaspeite are presented. Nickel ion is the main source of the electronic bands as it is the principal component in the mineral where as the bands in IR and Raman spectra are due to the vibrational processes in the carbonate ion as an entity. The combination of electronic absorption and vibrational spectra (including near-infrared, FTIR and Raman) of magnesian gaspeite are explained in terms of the cation co-ordination and the behaviour of CO32– anion in the Ni–Mg carbonate. The electronic absorption spectrum consists of three broad and intense bands at 8130, 13160 and 22730 cm–1 due to spin-allowed transitions and two weak bands at 20410 and 30300 cm–1 are assigned to spin-forbidden transitions of Ni2+ in an octahedral symmetry. The crystal field parameters evaluated from the observed bands are Dq = 810; B = 800 and C = 3200 cm–1. The two bands in the near-infrared spectrum at 4330 and 5130 cm–1 are overtone and combination of CO32– vibrational modes. For the carbonate group, infrared bands are observed at 1020 cm–1(1 ), 870 cm–1 (2), 1418 cm–1 (3) and 750 cm–1 (4), of which3, the asymmetric stretching mode is most intense. Three well resolved Raman bands at 1571, 1088 and 331 cm–1 are assigned to 3, 1 and MO stretching vibrations.

Relevância:

10.00% 10.00%

Publicador:

Resumo:

We report a theoretical study of the multiple oxidation states (1+, 0, 1−, and 2−) of a meso,meso-linked diporphyrin, namely bis[10,15,20-triphenylporphyrinatozinc(II)-5-yl]butadiyne (4), using Time-Dependent Density Functional Theory (TDDFT). The origin of electronic transitions of singlet excited states is discussed in comparison to experimental spectra for the corresponding oxidation states of the close analogue bis{10,15,20-tris[3‘,5‘-di-tert-butylphenyl]porphyrinatozinc(II)-5-yl}butadiyne (3). The latter were measured in previous work under in situ spectroelectrochemical conditions. Excitation energies and orbital compositions of the excited states were obtained for these large delocalized aromatic radicals, which are unique examples of organic mixed-valence systems. The radical cations and anions of butadiyne-bridged diporphyrins such as 3 display characteristic electronic absorption bands in the near-IR region, which have been successfully predicted with use of these computational methods. The radicals are clearly of the “fully delocalized” or Class III type. The key spectral features of the neutral and dianionic states were also reproduced, although due to the large size of these molecules, quantitative agreement of energies with observations is not as good in the blue end of the visible region. The TDDFT calculations are largely in accord with a previous empirical model for the spectra, which was based simplistically on one-electron transitions among the eight key frontier orbitals of the C4 (1,4-butadiyne) linked diporphyrins.

Relevância:

10.00% 10.00%

Publicador:

Resumo:

Single walled carbon nanotubes (SWNTs) were incorporated in polymer nanocomposites based on poly(3-octylthiophene) (P3OT), thermoplastic polyurethane (TPU) or a blend of them. Thermogravimetry demonstrated the success of the purification procedure employed in the chemical treatment of SWNTs prior to composite preparation. Stable dispersions of SWNTs in chloroform were obtained by non-covalent interactions with the dissolved polymers. Composites exhibited glass transitions, melting temperatures and heat of fusion which changed in relation to pure polymers. This behavior is discussed as associated to interactions between nanotubes and polymers. The conductivity at room temperature of the blend (TPU-P3OT) with SWNT is higher than the P3OT/SWNT composite.

Relevância:

10.00% 10.00%

Publicador:

Resumo:

Previous research has demonstrated the importance of the qualities of the teacher-child relationship on children’s development. Close teacher-child relationships are especially important for children at risk. Positive relationships have been shown to have beneficial effects on children’s social and academic development (Birch & Ladd, 1997; Pianta & Stuhlman, 2004). Children with language difficulties are likely to face increased risks with regard to long term social and academic outcomes. The purpose of the current research was to gain greater understanding of the qualities of teacher-child relationships for young children with parent reported language concerns. The research analyses completed for this thesis involved the use of data from the public-access database of Growing Up in Australia: The Longitudinal Study of Australian Children (LSAC). LSAC is a longitudinal study involving a nationally representative sample of 10,000 Australian children. Data are being collected biennially from 2004 (Wave 1 data collection) until 2010 (Wave 4 data collection). LSAC has a cross-sequential research design involving two cohorts, an infant cohort (0-1 year at age of recruitment) and a kindergarten cohort (4-5 years at age of recruitment). Two studies are reported in this thesis using data for the LSAC Kindergarten Cohort which had 4983 child participants at recruitment. Study 1 used Wave 1 data to identify the differences between teacher-child relationship qualities for children with parent reported language concerns and their peers. Children identified by parents for whom concerns were held about their receptive and expressive language, as measured by items from the Parents’ Evaluation of Developmental Status (PEDS) (Glascoe, 2000) were the target (at risk) group in the study (n = 210). A matched case control group of peers (n = 210), matched on the child characteristics of sex, age, cultural and linguistic differences (CALD), and socio-economic positioning (SEP), were the comparison group for this analysis. Teacher-child relationship quality was measured by teacher reports on the Closeness and Conflict scales from the short version of the Student-Teacher Relationship Scale (STRS) (Pianta, 2001). There were statistically significant differences in the levels of closeness and conflict between the two groups. The target group had relationships with their teachers that had lower levels of closeness and higher levels of conflict than the control group. Study 2 reports analyses that examined the stability of the qualities of the teacher-child relationships at Wave 1 (4-5 years) and the qualities of the teacher-child relationships at Wave 2 (6-7 years). This time frame crosses the period of the children’s transition to school. The study examined whether early patterns in the qualities of the teacher-child relationship for children with parent reported language concerns at Wave 1 predicted the qualities of the teacher-child relationship outcomes in the early years of formal school. The sample for this study consisted of the group of children identified with PEDS language concerns at Wave 1 who also had teacher report data at Wave 2 (n = 145). Teacher-child relationship quality at Wave 1 and Wave 2 was again measured by the STRS scales of Closeness and Conflict. Results from multiple regression models indicated that teacher-child relationship quality at Wave 1 significantly contributed to the prediction of the quality of the teacher-child relationship at Wave 2, beyond other predictor variables included in the regression models. Specifically, Wave 1 STRS Closeness scores were the most significant predictor for STRS Closeness scores at Wave 2, while Wave 1 STRS Conflict scores were the only significant predictor for Wave 2 STRS Conflict outcomes. These results indicate that the qualities of the teacher-child relationship experienced prior to school by children with parent reported language concerns remained stable across transitions into formal schooling at which time the child had a different teacher. The results of these studies provide valuable insight into the nature of teacher-child relationship quality for young children with parent reported language concerns. These children experienced teacher-child relationships of a lower quality when compared with peers and, additionally, the qualities of these relationships prior to formal schooling were predictive of the qualities of the relationships in the early years of formal schooling. This raises concerns, given the increased risks of poorer social and academic outcomes already faced by children with language difficulties, that these early teacher-child relationships have an impact on future teacher-child relationships. Results of these studies are discussed with these considerations in mind and also discussed in terms of the implications for educational theory, policy and practice.

Relevância:

10.00% 10.00%

Publicador:

Resumo:

A complete change of career forces a seismic shift in every aspect of your life. From day one, you have to face the loss of long held beliefs, behaviours, the known world of self, and security. We came from professions that themselves are poles apart, and many of the challenges we faced entering the profession were the same: juggling full-time work, part time study, and family commitmemts, taking a pay cut, and loss of social life. But over a short period of time we both transitioned to our new profession successfully. so what make our successful transition possible?