465 research outputs found
A Comparison of the Health Belief Model and Stages of Change in Exercise Behavior Construct in Cardiac Rehabilitation Patients
The purpose of this study was to compare the Health Belief Model (HBM) and the STAGES theoretical constructs in the uncovering of influencing factors associated with exercise compliance behaviors in cardiac rehabilitation subjects.
Sixty subjects who had experienced a cardiac event and who were attending a phase II outpatient cardiac rehabilitation program participated in this study. A questionnaire regarding health beliefs and exercise behavior classification was administered. Questions pertained to general health motivations, effectiveness of the intervention, perception of disease severity, perception of susceptibility and the stage of exercise behavior.
An analysis of variance and Tukey\u27s post hoc comparison statistical procedures were performed to identify the significant differences (α = 0.05), between the stage of change in exercise behavior and health beliefs.
Examination of the results revealed a significant difference in health beliefs between subjects classified in the Precontemplation (had not exercised previously and had no intention of starting) stage of exercise behavior when compared with all other exercise stages and their respective health beliefs. Furthermore, the dimensions of perceived severity and effectiveness of intervention were significantly identified as the factors exerting the most influence on general health beliefs.
It was concluded that by tailoring the rehabilitation regimen to complement the individual\u27s health beliefs that the likelihood of initiation and maintenance to a rehabilitation program would increase, and levels of compliance observed in this population would improve
A critical study of the use of an evaluation model designed to measure the outcomes and impact of development interventions
Includes abstract.Includes bibliographical references.This study investigates a naturalistic evaluation model’s ability to assess the outcomes and impact of development interventions in a rigorous manner. The study was undertaken by means of a meta-evaluation of five evaluation projects conducted by a socio-economic development consultancy situated in Cape Town. This meta-evaluation process was based upon four evaluation quality or ‘trustworthiness’ criteria proposed by Guba and Lincoln (1989); namely, credibility, transferability, dependability and confirmability. These four criteria were conceptualised, operationalised and applied to the evaluation projects under review
Research Through, With and As Storying
Research Through, With and As Storying explores how Indigenous and non-Indigenous scholars can engage with storying as a tool that disassembles conventions of research. The authors explore the concept of storying across different cultures, times and places, and discuss principles of storying and storying research, considering Indigenous, feminist and critical theory standpoints. Through the book, Phillips and Bunda provide an invitation to locate storying as a valuable ontological, epistemological and methodological contribution to the academy across disciplines, arguing that storying research gives voice to the marginalised in the academy. Providing rich and interesting coverage of the approaches to the field of storying research from Aboriginal and white Australian perspectives, this text seeks to enable a profound understanding of the significance of stories and storying. This book will prove valuable for scholars, students and practitioners who seek to develop alternate and creative contributions to the production of knowledge
Succession narratives in family business: the case of Alessi
One of the most significant challenges facing family firms is how to successfully manage succession from one generation of leaders to the next. In this paper, we contribute to existing understandings of this complex and difficult process by exploring how successors use family business succession narratives to legitimate their succession. Building on a case study of Alessi, a family-owned Italian design firm, we draw on the literature on organizational narratives to develop a framework for understanding family business succession narratives and present a typology of some of the narrative strategies that can be used during succession. We conclude with a discussion of the theoretical and practical ramifications of a narrative view of succession in family firms
Research Through, With and As Storying
Research Through, With and As Storying explores how Indigenous and non-Indigenous scholars can engage with storying as a tool that disassembles conventions of research. The authors explore the concept of storying across different cultures, times and places, and discuss principles of storying and storying research, considering Indigenous, feminist and critical theory standpoints. Through the book, Phillips and Bunda provide an invitation to locate storying as a valuable ontological, epistemological and methodological contribution to the academy across disciplines, arguing that storying research gives voice to the marginalised in the academy. Providing rich and interesting coverage of the approaches to the field of storying research from Aboriginal and white Australian perspectives, this text seeks to enable a profound understanding of the significance of stories and storying. This book will prove valuable for scholars, students and practitioners who seek to develop alternate and creative contributions to the production of knowledge
Dispersal, settlement and recruitment : their influence on the population dynamics of intertidal mussels
Recruitment of planktonic larvae into sedentary benthic populations regulates the population dynamics of marine invertebrates. The processes controlling recruitment, however, are poorly understood, and recruitment remains largely unpredictable, which complicates management of exploited shellfish resources. The mussels Perna perna, Choromytilus meridionalis and Mytilus galloprovincialis, found on the south coast of southern Africa, have planktonic larvae and sedentary adult stages. This thesis examines dispersal, settlement and early post-settlement growth and mortality, and their effect on recruitment and demography of intertidal mussel populations in the region of Algoa Bay on the south coast of southern Africa. Temporal and spatial variation in the body mass, density and size structure of mussels, the distribution of bivalve larvae on plankton grids in the nearshore zone and the distribution of a recently introduced invasive mussel, Mytilus galloprovincialis, were examined between 1989 and 1992. Furthermore, data on hourly or daily changes in wind strength and direction, air and sea surface temperatures and low and high tide levels in the study region, were obtained. There were 3-4 peaks in spawning (characterised by an abrupt decline in weight) and settlement activity annually. These peaks varied in exact timing, intensity and duration between sites and over time. However, at a site, spawning was followed by settlement 4-8 weeks later, and there was a significant (P < 0.05) direct correlation between spawning intensity prior to the appearance of a new cohort and the cohort density (settlement intensity). The stochastic spatial and temporal variation in breeding activity was superimposed on a more general pattern of a higher intensity of spawning and settlement in Algoa Bay than on the open coast, and a higher settlement intensity on coastal sandstone shores than on dune rock shores. Spawning was more frequent in winter and spring, and the probability of spawning and settlement peaked around the spring and autumn equinox, if temperature and wind conditions were suitable. Larval behaviour had little effect on their dispersal in the well-mixed nearshore region. Larvae were passively dispersed by currents, and their dispersal range and direction depended on prevailing winds and local topography. The sharp decline in density of recruit and adult M. galloprovincialis with increasing distance from the point of introduction, showed that some larvae were carried by wind generated currents over moderately long distances (-100 km). However, since most (76 %) M. galloprovincialis recruited within 4 km of the parent population, it is possible that larvae become trapped in small gullies and crevices around rocky shores, and have a limited dispersal range. This could explain the link between local patterns of spawning and settlement. The distribution and abundance of settlers on the shore was influenced by larval behaviour and the availability of settlement, substrata. Larvae preferred to settle primarily on foliose coralline algae and migrate to the adult mussel bed when they were larger (0.60-7 mm), but larvae also settled directly on adult mussels, possibly because the amount of coralline algae was limited. Both direct and secondary settlement were considered to be important in maintaining mussel populations since the rate of settlement was low(generally < 60 000.m-2). Cohort analyses showed that prior to maturity post-settlement growth (- 30 mm in 10 months) and mortality rates (60-100%) were high, but varied. When settlement intensity was low this variability uncoupled the relationship between spawning and recruitment intensity. Multiple regression analysis showed that together reproductive effort (gamete output), settlement intensity, growth and mortality prior to maturity, accounted for 76 % of the variance in recruitment into mature adult populations. The low settlement rate coupled with the short life span of mussels « 3 years), meant that populations underwent marked spatial and temporal variations in structure and abundance as settlement intensity varied, but there were consistent general differences between mussel populations on dune rock and sandstone shores in Algoa Bay and on the open coast. It was concluded from these results that, spawning intensity and post-settlement growth and mortality, rather than dispersal, regulated recruitment and the structure and abundance of intertidal P. perna and C. meridionalis populations along the south coast of southern Africa. On the basis of these results it is recommended that species with limited dispersal, variable recruitment and high natural mortality, such as P. perna, should be conserved by protecting a small part of the population in reserves, and controlling utilisation outside reserves to minimize disturbance to local brood stocks. Furthermore, since the potential for reseeding adjacent exploited areas is limited, several small reserves placed at regular intervals along the coast would be more effective than a single large reserve
Relevant Restaurant Interests to Partnering with Non-Profit Organizations
Mealshare is a newly formed non-profit organization that partners with restaurants to feed persons in need. We conducted exploratory and quantitative research on Edmonton and area restaurants to identify those restaurant interests leading to partnerships with non-profit organizations. By performing in-depth interviews with restaurant owners and managers within Edmonton, we discovered main themes such as marketing benefits of social responsibility, preferences for charities to donate to, concerns about charity work, and influences on choosing social responsibility efforts. A questionnaire was developed and distributed to restaurant owners and managers, from which we derived tentative conclusions and recommendations to enhance the Mealshare brand and identify future opportunities. Based on the findings, we find that Mealshare should focus on configuring their marketing activities to emphasize community involvement, time constraint management, and marketing benefits, as well as tailor themselves for independently owned restaurants
Altruism and Agency in the Family Firm: Exploring the Role of Family, Kinship, and Ethnicity
This article examines the relationship between altruism and agency costs in family business through an in-depth case study of a family firm. We found that altruism reduced agency costs in the early stages of the business, but that agency problems increased as the venture became larger and more established. Moreover, we suggest that altruistic behavior need not be confined to family and close kin, but may extend through networks of distant kin and ethnic ties. We thus present a more complex view of the agency relationship in family business than is often portrayed in the existing literature
Application of Emotional Design to the Form Redesign of a Midwifery Training Aid
This paper focuses on the form redesign of a midwifery training aid. The training aid needed to represent a pregnant woman as well as having an appearance suitable for a medical device. The redesign was informed by Donald Norman’s Emotional Design Theory in order to explore the design form to combine functionality and technology, as well to gain attention and elicit positive emotional responses from the user. The redesigned prototype was realised using 3D printing and other rapid prototyping technologies. The prototype was exhibited at an international exhibition and feedback from medical simulation experts indicated that the design form was appropriate for the intended purpose
The targeted delivery of multicomponent cargos to cancer cells by nanoporous particle-supported lipid bilayers.
Encapsulation of drugs within nanocarriers that selectively target malignant cells promises to mitigate side effects of conventional chemotherapy and to enable delivery of the unique drug combinations needed for personalized medicine. To realize this potential, however, targeted nanocarriers must simultaneously overcome multiple challenges, including specificity, stability and a high capacity for disparate cargos. Here we report porous nanoparticle-supported lipid bilayers (protocells) that synergistically combine properties of liposomes and nanoporous particles. Protocells modified with a targeting peptide that binds to human hepatocellular carcinoma exhibit a 10,000-fold greater affinity for human hepatocellular carcinoma than for hepatocytes, endothelial cells or immune cells. Furthermore, protocells can be loaded with combinations of therapeutic (drugs, small interfering RNA and toxins) and diagnostic (quantum dots) agents and modified to promote endosomal escape and nuclear accumulation of selected cargos. The enormous capacity of the high-surface-area nanoporous core combined with the enhanced targeting efficacy enabled by the fluid supported lipid bilayer enable a single protocell loaded with a drug cocktail to kill a drug-resistant human hepatocellular carcinoma cell, representing a 10(6)-fold improvement over comparable liposomes
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