2,600 research outputs found
The Relationship between Emotional Intelligence, Resiliency, and Mental Health in Older Adults: The Mediating Role of Savouring
Traditionally, mental and physical health have been considered indicators of successful aging. However, resiliency, the propensity to bounce back from negative events, is beginning to emerge as an important aspect of aging successfully. Further, possessing emotional intelligence (EI) has been associated with improved physical and mental health. Positive emotions consistently demonstrate numerous mental and physical health benefits, however savouring, the process through which positive emotions are focused on, has comparatively been under-studied. The present study hypothesized that savouring, resiliency and EI would predict physical health in older adults, and that savouring would mediate the relationship between resiliency, EI, and mental health. Contrary to hypotheses, none of the variables significantly predicted physical health. In partial support of hypotheses, savouring mediated the relationship between resiliency and mental health, but did not mediate the relationship between EI and mental health when the two models were combined
Growing Pains or Opportunities? A Customer Survey of Three Farmers\u27 Markets in One Rural Community
The continued growth of farmers\u27 markets is presenting new challenges to Extension. As the number of markets expands, how can Extension help those in the same community work together for mutual benefit? The study reported here examined similarities and differences among customers attending three different farmers\u27 markets within a single locality in Gettysburg, Pennsylvania. Based on 370 customer surveys, study results underscore the diversity of markets operating within the same community and provide insights into ways Extension might assist markets to work together to expand their shared customer base, increase revenues, and better serve local residents
When Life Gives You Lemons: The Development and Validation of the Resilience Scale for Older Adults
The study of resilience, or positive adaptation in the face of adversity, is important across the lifespan, but may be particularly relevant for older adults who tend to experience an increasing number of challenges. Traditionally, resilience assessment has largely focused on child and young-to-middle aged adult populations, and as such, the literature is lacking a validated resilience measure developed specifically for older adults. This dissertation aimed to improve the measurement of resilience in older populations by developing and validating a new resilience measure that is relevant and appropriate for older adults. In Study 1, a qualitative metasynthesis was conducted to develop a theoretical model of resilience in older adulthood that is grounded in numerous qualitative studies examining resilience from older adults’ perspectives. Using this new theoretical model, Studies 2a, 2b and 2c employed exploratory factor analyses, confirmatory factor analyses, and analysis of gender invariance to develop and provide initial validation for the Resilience Scale for Older Adults (RSOA). The RSOA consists of four factors that measure resilience protective factors in the following domains: Intrapersonal, Interpersonal, Spiritual, and Experiential. Lastly, Study 3 evaluated the practical applicability of the RSOA by using this new measure to explore the relationship between perceived stress, adverse life events, and quality of life (QOL) in older adults. Overall, results provide promising initial validity evidence for the RSOA and findings suggest it is generally appropriate for an older adult population, although the Spiritual factor may be better suited as a supplemental, rather than core protective factor. Additionally, resilience as measured by the RSOA mediates the relationship between perceived stress and QOL, but only the Interpersonal resilience factor plays a key role in the relationship between cumulative adverse life events and QOL. The implications for resilience assessment in research and practice are discussed
Evidence that implementation intentions reduce drivers' use of mobile phones while driving
Implementation intentions are IF-THEN plans that have the potential to reduce mobile phone use while driving and thus contribute towards the prevention of road traffic crashes. We tested whether an intervention, designed to promote the formation of implementation intentions, could reduce drivers’ use of mobile phones. A randomized controlled design was used. The participants (N = 136) were randomised to an implementation or a control condition. Self-report questionnaires were administered to all participants at both pre- and one-month post-intervention to measure the use of mobile phones while driving, goal intentions and the theoretically derived motivational pre-cursors of goal intentions (attitudes, subjective norm and perceived behavioural control). Immediately following the pre-intervention questionnaire, the participants in the implementation intention condition (n = 67) were given a volitional help sheet, which asked them to form implementation intentions by specifying target driving situations that tempted them the most to use a mobile phone and linking them with goal-directed responses that could be used to resist the temptation. The participants in the control condition (n = 69) were asked to specify target situations that tempted them the most to use a mobile phone while driving and to generally try to avoid using a mobile phone in those situations. One-month post-intervention, the participants in the implementation intention condition reported using a mobile phone less often while driving in their specified target driving situations than did the participants in the control condition. As expected, no differences were found between the conditions in the reported frequency of mobile phone use in unspecified driving situations, goal intentions or any motivational pre-cursor of goal intentions. The implementation intention intervention that was tested in this study is a potentially effective tool for reducing mobile phone use while driving in target driving situations where behaviour-change is most needed
Towards a better understanding of the electrosynthesis of 2,5-dicarboxy-2,5-dihydrofurans: structure, mechanism and influence over stereochemistry
2,5-Dicarboxy-2,5-dihydrofurans are key constituents of a number of natural products and have roles as intermediates in the formation of other such compounds of interest. Typically, these species are synthesized using toxic Pb(IV) salts. Electrochemical syntheses of 2,5-diacetoxy-2,5-dihydrofuran that do not require the use of lead have been reported, but a general lack of experimental detail has prevented these procedures from being more widely adopted. Moreover, no electrochemical study has yet reported the ratio of cis and trans isomers produced. Herein, we compare the chemical, lead-based route to 2,5-diacetoxy-2,5-dihydrofuran with a fully described electrosynthesis method. In doing so, we have discovered that the cis and trans isomers of this compound were previously incorrectly assigned in the literature, an error that we correct by obtaining the crystal structure of cis-2,5-diacetoxy-2,5-dihydrofuran. This allows the ratios of the isomers as prepared by the chemical (2 : 1 cis : trans) and electrochemical (7 : 5 cis : trans) methods to be obtained. Through experimental and computational insights, we propose a mechanism for the electrochemical synthesis of 2,5-dicarboxy-2,5-dihydrofurans and go some way towards validating this mechanism by synthesizing 2,5-dibutoxy-2,5-dihydrofuran electrochemically for the first time. We hope that these findings will provide some greater clarity to the literature surrounding the electrosynthesis and potential applications of 2,5-dicarboxy-2,5-dihydrofurans
Magnetic characterisation of microstructural feature distribution in P9 and T22 steels by major and minor BH loop measurements
This paper investigates the magnetic properties and parameters measured from major/minor loops and used to characterise different microstructural feature distributions in P9 and T22 steel in different heat treatment or service conditions. The present study introduces a non-destructive way of selecting microstructural features of interest and/or excluding those of little relevance by examination of minor loop measurements at a selected range of applied fields and discusses the fundamental mechanism in terms of domain processes. There is remarkable consistency in magnetic behaviours and properties such as initial/incremental permeability values between the measurements by different techniques. This behaviour has been ascribed to the similar underlying domain processes and hence similar selected microstructural features that are affecting the domain processes
Enhancement of TbIII-CuII single-molecule magnet performance through structural modification
We report a series of 3d–4f complexes {Ln2Cu3(H3L)2Xn} (X=OAc−, Ln=Gd, Tb or X=NO3−, Ln=Gd, Tb, Dy, Ho, Er) using the 2,2′-(propane-1,3-diyldiimino)bis[2-(hydroxylmethyl)propane-1,3-diol] (H6L) pro-ligand. All complexes, except that in which Ln=Gd, show slow magnetic relaxation in zero applied dc field. A remarkable improvement of the energy barrier to reorientation of the magnetisation in the {Tb2Cu3(H3L)2Xn} complexes is seen by changing the auxiliary ligands (X=OAc− for NO3−). This leads to the largest reported relaxation barrier in zero applied dc field for a Tb/Cu-based single-molecule magnet. Ab initio CASSCF calculations performed on mononuclear TbIII models are employed to understand the increase in energy barrier and the calculations suggest that the difference stems from a change in the TbIII coordination environment (C4v versus Cs)
Atypical chemokine receptor ACKR2 controls branching morphogenesis in the developing mammary gland
Macrophages are important regulators of branching morphogenesis during development and postnatally in the mammary gland. Regulation of macrophage dynamics during these processes can therefore have a profound impact on development. We demonstrate here that the developing mammary gland expresses high levels of inflammatory CC-chemokines, which are essential in vivo regulators of macrophage migration. We further demonstrate that the atypical chemokine receptor ACKR2, which scavenges inflammatory CC-chemokines, is differentially expressed during mammary gland development. We have previously shown that ACKR2 regulates macrophage dynamics during lymphatic vessel development. Here, we extend these observations to reveal a novel role for ACKR2 in regulating the postnatal development of the mammary gland. Specifically, we show that Ackr2−/− mice display precocious mammary gland development. This is associated with increased macrophage recruitment to the developing gland and increased density of the ductal epithelial network. These data demonstrate that ACKR2 is an important regulator of branching morphogenesis in diverse biological contexts and provide the first evidence of a role for chemokines and their receptors in postnatal development processes
Electromagnetic evaluation of the microstructure of grade 91 tubes/pipes
This paper assesses the feasibility of transferring a laboratory-based electromagnetic (EM) sensor technique, which has already proved sensitive to significant (e.g. phase balance) or subtle (e.g. number density of fine precipitates) microstructural changes in steel, to non-destructive evaluation of the microstructure of power generation components such as tubes/pipes. It has been found that Grade 91 steels, in different conditions representative of service entry, thermally aged or ex-service, can be distinguished using laboratory-based measurement systems on small machined cylindrical samples as well as by an industry deployment EM sensor system on full-diameter tube samples. The measurements for the tube samples follow the same trend as the machined cylindrical samples. The results indicate an industrial deployable sensor system can be used for sorting service-exposed or mis-heat-treated/mis-manufactured Grade 91 steel tubes/pipes from the correctly heat treated service-entry ones
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