Relevant bibliographies by topics / Longitudinal Value

Academic literature on the topic 'Longitudinal Value'

Author: Grafiati
Published: 10 December 2022
Last updated: 28 January 2023

Create a spot-on reference in APA, MLA, Chicago, Harvard, and other styles

Select a source type:

Contents

Consult the lists of relevant articles, books, theses, conference reports, and other scholarly sources on the topic 'Longitudinal Value.'

Next to every source in the list of references, there is an 'Add to bibliography' button. Press on it, and we will generate automatically the bibliographic reference to the chosen work in the citation style you need: APA, MLA, Harvard, Chicago, Vancouver, etc.

You can also download the full text of the academic publication as pdf and read online its abstract whenever available in the metadata.

Journal articles on the topic "Longitudinal Value"

1

Bradley, Steve. "The value of longitudinal data." Practice Management 29, no. 9 (October 1, 2019): 30–31. http://dx.doi.org/10.12968/prma.2019.29.9.30.

Full text
APA, Harvard, Vancouver, ISO, and other styles
2

White, Richard T., and Hanna J. Arzi. "Longitudinal Studies: Designs, Validity, Practicality, and Value." Research in Science Education 35, no. 1 (March 2005): 137–49. http://dx.doi.org/10.1007/s11165-004-3437-y.

Full text
APA, Harvard, Vancouver, ISO, and other styles
3

de Pechpeyrou, Pauline. "How consumers value online personalization: a longitudinal experiment." Direct Marketing: An International Journal 3, no. 1 (March 27, 2009): 35–51. http://dx.doi.org/10.1108/17505930910945723.

Full text
APA, Harvard, Vancouver, ISO, and other styles
4

Chen, Long, Jinjie Chen, and Jianxi Wang. "Calculation of Reasonable Tension Value for Longitudinal Connecting Reinforcement of CRTSII Slab Ballastless Track." Applied Sciences 8, no. 11 (November 2, 2018): 2139. http://dx.doi.org/10.3390/app8112139.

Full text
Abstract:
There is confusion in the original design concept for the tensioning of longitudinally connected reinforcement of the CRTSII (China Railway Track System) slab ballastless track. In order to clarify the effect of tension value of longitudinal reinforcement on the mechanical characteristics of the ballastless track, a three-dimensional finite element model, considering the nonlinear interaction between the track slab and cement-emulsified asphalt (CA) mortar of the CRTSII slab ballastless track, was established. The mechanical characteristics of the track structure under longitudinal tension load and temperature gradient load of the longitudinal joint were calculated. A method of applying prestress to post-pouring concrete was proposed according to the concept of prestress loss of pretensioning prestressed concrete, a reasonable tensile force value was proposed after the crack width, and the reinforcement stress of the ballastless track in the operation stage was checked and calculated according to the concrete design principle. When the tension force is greater than 300 kN, it is harmful to the bonding between the slab and mortar layer, which is prone to interlayer damage. In order to add prestress to concrete with wide joints to ensure the longitudinal stability of the ballastless track, and that the reinforcement stress and crack width meet design requirements, it is suggested that the tension force value should be 230 kN. Further, the temperature difference between reinforcement and concrete should be 30 °C before the initial curdle of wide joint concrete.
APA, Harvard, Vancouver, ISO, and other styles
5

Jacobs, Jeffrey P., David M. Overman, and James S. Tweddell. "The Value of Longitudinal Follow-Up and Linked Registries." Journal of the American College of Cardiology 78, no. 17 (October 2021): 1714–16. http://dx.doi.org/10.1016/j.jacc.2021.08.041.

Full text
APA, Harvard, Vancouver, ISO, and other styles
6

Doot, Robert K., Larry A. Pierce, Darrin Byrd, Brian Elston, Keith C. Allberg, and Paul E. Kinahan. "Biases in Multicenter Longitudinal PET Standardized Uptake Value Measurements." Translational Oncology 7, no. 1 (February 2014): 48–54. http://dx.doi.org/10.1593/tlo.13850.

Full text
APA, Harvard, Vancouver, ISO, and other styles
7

Hayward, Geoffrey, Shyamal Asher, Brian Gebhardt, and Andrew Maslow. "Right Ventricular Assessment: Are Regional Longitudinal Measurements of Value?" Journal of Cardiothoracic and Vascular Anesthesia 34, no. 8 (August 2020): 2148–51. http://dx.doi.org/10.1053/j.jvca.2020.03.004.

Full text
APA, Harvard, Vancouver, ISO, and other styles
8

Oren, Ohad, and David H. Henry. "A Longitudinal Definition of the Value of Cancer Drugs." Blood 128, no. 22 (December 2, 2016): 1185. http://dx.doi.org/10.1182/blood.v128.22.1185.1185.

Full text
Abstract:
Background Cancer drugs now account for a greater fraction of the national health care expenditure than ever before. A new movement has been formed that argues for meaningful definition of the value of drugs as a pre-requisite for their approval as well as for clinical decision-making. Numerous frameworks have been designed to allow comparison of different pharmacological agents based on patient-related factors (efficacy, safety, cost). However, these formulas largely ignore chronic, long-term toxicities which are particularly important in the case of highly-curable cancers like Hodgkin Lymphoma and testicular cancer. We propose a drug value scheme that incorporates debilitating and life-threatening long-term toxicities along with traditional factors (efficacy and acute safety) when defining a drug's merit. Methods A longitudinal framework for assessing drug value is suggested. Pertinent drug-related characteristics - efficacy, acute adverse events, and long-term toxicities - are included. For each drug characteristic, patient-centred surrogate markers are chosen: efficacy is defined by the 10-year overall survival, acute safety by the rate of neutropenia and life-threatening infections, and long-term toxicity by the cumulative incidence of secondary cancers and heart disease at 5 and 10 years, respectively. Advanced Hodgkin Lymphoma is chosen for simulation. The most commonly used regimens are compared. Data from high-value prospective clinical trials (see references) are used to grade each regimen. Points are given for each percentile range in each category (higher score for greater efficacy and lower toxicity; see Appendix 1). Percentile intervals are chosen according to the presumed clinical impact. The net value of each regimen is assessed by adding the score for each individual care component and comparing it to a similar model that does not include long-term toxicity. Results Risk score calculation yielded results as shown in Table 1. ABVD And Stanford V gained the highest score (26; of 30) while COPP-EBV-CAD and BEACOPP obtained lower scores (24 and 22, respectively). Stanford V reached a better value score than COPP-EBV-CAD, and was equivalent to ABVD, in contrast to a drug value scheme that neglected long-term toxicities, in which it was inferior to both. The superiority of ABVD to COPP-EBV-CAD and BEACOPP persisted in the model, as was the overall advantage of COPP-EBV-CAD over BEACOPP. Conclusions As the treatment of cancer continues to improve, value should no longer be derived only from a drug's overall survival and acute injury profiles. A more comprehensive appreciation of a drug's benefit-to-risk ratio entails an understanding of its more distant health implications. Our model shows that such an easily-constructible framework results in a different value estimation of drugs compared with the traditional one. Appendix 1: Value Score: - Efficacy * Overall Survival: 7 if <74.9%, 8 if 75.0-80.9%, 9 if 81.0-85.9%, 10 if 86.0-88.9%, 11 if >89.0% - Acute toxicity * Incidence of severe infections: 3 if >10.0%, 4 if 5.0-9.9%, 5 if <4.9% * Incidence of grade 3 neutropenia: 1 if > 50.0%, 2 if 28.0-49.9%, 3 if <27.9% - Late toxicity * Incidence of heart disease at 5 years: 1 if >5.6%, 3 if 4.0-5.5%, 4 if 2.0-3.9%, 5 if <1.9% * Incidence of secondary cancers at 10 years: 6 if <3.9%, 4 if 4.0-9.0%, 3 if 9.1-13.0%, 1 if >13.1% *** Example: ABVD value score = 9 (for OS of 85%) + 5 (for severe infection incidence of 2%) + 3 (for grade 3 neutropenia incidence of 25%) + 3 (for 5-year heart disease incidence of 5.5%) + 6 (for 10-year secondary cancer incidence of 0.9%) = 26 References: 1. Merli F, et al. JCO. 2016;34(11):1175-81 2. Manuel Gotti, et al. Lymphoma. 2013, Article ID 952698, 7 pages 3. Kara M, et al. Blood. 2011;117:2596-2603 4. Evens, et al. Br J Haematol. 2013;161(1): 76-86 5. Chisesi T, et al. J Clin Oncol, 2011;29:4227-4233 6. Gobbi PG, et al. J Clin Oncol. 2005; 23:9198-9207 7. Bhanu Vakkalanka. Advances in Hematology, vol. 2011, Article ID 656013, 7 pages, 2011 8.Massimo Federico et al. J Clin Oncol. 2009;27(5):805-811 9.Gobbi P G, et al. JCO. 2005; 23 (36):9198-9207 10. S. M. Edwards-Bennett, et al. Annals of Oncology. 2010; 21: 574-581 Disclosures No relevant conflicts of interest to declare.
APA, Harvard, Vancouver, ISO, and other styles
9

Vollmer, William M. "Comparing change in longitudinal studies: Adjusting for initial value." Journal of Clinical Epidemiology 41, no. 7 (January 1988): 651–57. http://dx.doi.org/10.1016/0895-4356(88)90117-5.

Full text
APA, Harvard, Vancouver, ISO, and other styles
10

Rosenthal, Leslie. "Unemployment Incidence following Redundancy: The Value of Longitudinal Approaches." Sociological Review 37, no. 1_suppl (May 1989): 187–213. http://dx.doi.org/10.1111/j.1467-954x.1989.tb03343.x.

Full text
APA, Harvard, Vancouver, ISO, and other styles
More sources

Dissertations / Theses on the topic "Longitudinal Value"

1

Ledden, Lesley. "The dynamic nature of value : a longitudinal study." Thesis, Kingston University, 2009. http://eprints.kingston.ac.uk/20283/.

Full text
Abstract:
Accepting the view that the marketing process is centred on exchange between two parties (Hunt, 2002), it follows that exchange will take place between two (or more) parties when each party trades something of value in return for something of greater value. Consequently the logical conclusion is that value is the cornerstone of marketing (see for example Eggert and Ulaga, 2002; Holbrook, 2005). Perceptions of value can vary over time and experience (Eggert and Ulaga, 2002; Woodall, 2003; Sánchez-Fernandez and Iniesta-Bonillo, 2007). However, even though the temporal nature of value is widely acknowledged, research in this area has been largely overlooked, and while there is limited investigation within the b2b domain (see Flint et al., 2002; Beverland and Lockshin, 2003; Eggert et al., 2006) a literature search has been unable to identify any research that examines actual changes in perceptions of value within consumer research. Consequently, the aim of this study is to empirically examine the temporal stability (i.e., the nature and strength) of the functional relationships between value and its antecedents and outcomes. In order to address the above aim a theoretically grounded model is proposed. Based on common acceptance among researchers (see review by Woodall, 2003) value is conceptualised as the result of a 'trade-off' between benefits (get) and sacrifices (give). However, instead of treating value as a composite higher order construct the behaviours of its two components (get and give) with the following constructs are examined separately: service quality and personal values (terminal and instrumental) are modelled as determinants while satisfaction and intention are the outcomes of value. In addition the impact of knowledge (cognitive; Woodruff, 1997) and emotions (affective; Richins, 1997) as direct determinants of value and additionally as moderators of the value to satisfaction relationship is tested. The research was-conducted within the Higher Education sector among consumers of postgraduate education at a London business school. To test the temporal stability and pattern of development of the functional relationships between the value components and their above defined nomologically related constructs, related data were collected longitudinally from two sample of cohorts at three points in time (i.e., the beginning, middle and end of their studies) via a personally (Times 1 and 2) and internet (Time 3) administrated questionnaire. A total of 34 and 45 usable responses were collected from Cohorts 1 and 2 respectively over the three time points. The data were analysed using Partial Least Squares. Analysis indicates that the give component of value should be separated into money, and time and effort (denoted in this study as give). There is support for knowledge and emotions as direct determinants of the now three value components rather than as moderators of the relationships between these components and satisfaction. Comparisons between the two cohorts reveal the existence of a number of significant differences in the relative strength of corresponding relationships. Finally, in terms of the focal interest of this study, there is substantial evidence of the temporal nature of the functional relationships of the value components. Four of the hypothesised relationships are supported only at a single time point, while a number of significant changes in the strength of the functional relationships between the three points in time are identified. The research is considered to make the following contributions to the subject matter. It confirms the idiosyncratic nature of the value components in terms of their functional relationship with antecedents and consequences. It highlights the need to consider the location of monetary sacrifice within the give component. The existence of a time lag before some determinants have a significant impact on the formation of value is identified. There is tentative evidence to suggest that as consumption progresses, value is formed by a larger number of determinants. For the get component, significant variations in the strength of its functional relationships over time are found to exist.
APA, Harvard, Vancouver, ISO, and other styles
2

McLaren, Josephine Anne. "Can EVA™ create value? : a dynamic longitudinal investigation of three New Zealand companies." Thesis, University of Newcastle upon Tyne, 2012. http://hdl.handle.net/10443/2875.

Full text
Abstract:
When Economic Value Added (EVA™) was first promoted by the patent-holders, Stern Stewart and Company, it was hailed as an innovation in management accounting. The suggestion was that this measure could be used as the basis for the management control system within the firm, covering planning, control, investment decision making and remuneration determination. Many firms introduced the EVA system. New Zealand, in particular, was exposed to the EVA methodology through the publication in 1996 of a Value-Based Reporting Protocol that was recommended for state-owned enterprises. This study adopts a longitudinal perspective to examine the experience of three large companies in New Zealand, who implemented EVA in the late 1990s. These companies are ex-nationalised firms; two are state-owned enterprises and one is listed. The firms implemented EVA in the late 1990s and continued to use it as the management control system for a period of 10-15 years. The evidence is gathered from a questionnaire conducted in 1999, interviews conducted in 2001 and 2011, and supporting documentary evidence. It covers the entire ‘life cycle’ of EVA, from initial implementation, through its evolution to the eventual decline. Three different theoretical frameworks are developed from three academic disciplines and applied in an original context to analyse this EVA evidence. The first is the discovery theory framework, drawing from the economics literature base. This framework is used to consider whether EVA can be regarded as a discovery process within the organisation, to discover the source of value that is known to exist in these ex-nationalised firms. The second, from the management literature, is used to investigate whether EVA can be viewed as a management model in the firm. Finally, contingency theory as applied in management accounting is extended to a longitudinal perspective to analyse the variables that were important at each stage of the EVA life cycle. A central theme of each framework was the information provided and the incentives created by the measure. The thesis provides original contributions to the evidence on EVA, including why EVA needed to evolve and why it eventually failed. Further contributions are the suggestions for development and extension of each framework and the synthesising of the frameworks. Finally, implications for practitioners and policy makers are considered.
APA, Harvard, Vancouver, ISO, and other styles
3

Lange, Joshua. "Exploring value through international work placements in social entrepreneurial organisations : a multiple case longitudinal study." Thesis, University of Exeter, 2015. http://hdl.handle.net/10871/22106.

Full text
Abstract:
Universities and their partner organisations are promising that short-term work placements in social entrepreneurial organisations will increase student employability, leadership skills, and knowledge of socially innovative practice, while providing students meaningful opportunities to ‘change the world;’ yet theory and empirical studies are lacking that show what is beneficial and important to students, how students develop, and what influences their development through these cross-cultural and interdisciplinary experiential learning programs. This is the first study to explore the value of UK and US students participating in international internships and fellowships related to social entrepreneurship from a socioeconomic perspective. For this study, a value heuristic was developed from organisational models in the social entrepreneurship and educational philosophy literature followed by a qualitative longitudinal multiple case study. Fifteen individual student cases were chosen from two programmes involving two UK and three US universities, taking place in eleven host countries over five distinct data collection intervals. Findings across cases show a broad range of perceived value to students: from research skills and cross-cultural understanding, to critical thinking and self-confidence. Findings also show how student perspectives changed as a result of the placement experience and what ‘internal’ and ‘context-embedded’ features of the placements influenced students’ personal and professional lives. However, the ambiguity of social impact measures raises ethical questions about engaging students with limited knowledge, skills, and preparation on projects where they are unprepared to create long-term value for beneficiaries. This study contributes to the literature on higher education and international non-profit and business education by: providing an expansive matrix of value to students engaging in international placements; initiating a ‘hybridisation’ theory of personal value; creating a rigorous methodology transferable to similar programmes; outlining embedded features that programme developers can integrate in order to improve their own social and educational impact; raising ethical questions related to theory and practice; and including the researcher’s own multi-continent journey into the substance of the work.
APA, Harvard, Vancouver, ISO, and other styles
4

Print, Carole. "An exploratory longitudinal study of the implementation of shareholder value within three large international companies." Thesis, Henley Business School, 1998. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.288764.

Full text
APA, Harvard, Vancouver, ISO, and other styles
5

Connor, Paul Brereton. "Exploring customer perceived value change in an UK aerospace manufacturing company : a longitudinal case study." Thesis, University of Nottingham, 2013. http://eprints.nottingham.ac.uk/28661/.

Full text
Abstract:
Organisational members need clearer comprehension about value/s dynamic nature in a constantly changing networked ecosystem of resource integration and mutual service provision. This is so organisational pursuit of competitive advantage for business success is achievable through better stakeholder value propositions which customers especially value in-use. Empirical studies indicate customer perceptions of value are reasonably well documented, however the same cannot be said of knowledge about changes in customer perceived value where the paucity of research reflects its embryonic state. This exploratory longitudinal case study in a major blue-chip company setting is the first known research design employing an idiographic interactive approach of three interpretive qualitative methods mixed with descriptive quantitative elements. The UK aerospace industry is considered to be appropriate to study the phenomenon of customer perceived value change, because of its characteristics i.e. periods of cyclical change, innovation, new technologies and its long-term relationship marketing nature. Research findings highlight customer perceived value changes are determined idiosyncratically and phenomenologically by beneficiaries and manifested at the attribute level of service provision rather than at higher levels of consequences and values. Different macro-environmental and micro-environmental factors influence the organisational climate continuously albeit not as critical incidents having a direct impact on individual perception of value. Value constructs informed by organisational values and personal values did not change per se; however thematic recalibrations within each respondent/s values system hierarchy were detected. Exemplars responses reveal most increases or decreases in value change appear associated with changing positions and roles within the organisation for two individuals. Whereas the least change in value came from the remaining exemplar's supplier development role in providing stability and surety of supply. Key marketing implications are the surfacing and management of tacit customer perceived value change knowledge, facilitated through common language and leading to enhanced external and internal collaborative relationships.
APA, Harvard, Vancouver, ISO, and other styles
6

Gundogdu, Didem. "The role of social and human capital in assessing firm value : a longitudinal study of UK firms." Thesis, University of Exeter, 2017. http://hdl.handle.net/10871/30194.

Full text
Abstract:
This study examines the role of board social and human capital in assessing the market value of firms in the UK context. As the world economy has shifted from manufacturing to service and knowledge-based economies, attributes such as knowledge, expertise, skills, ability and reputation are increasingly fundamental to the success of business enterprises. There is a growing consensus that these attributes are an increasingly valuable form of capital, asset or resource, despite their intangibility. In accounting, there are a number of problems arising from the accountability of non-physical, non-financial capital. Firstly, some forms of capital and certain assets are neither recognised nor presented in the statement of financial position. Secondly, some accounting practices relating to intangible assets are very conservative, resulting in undervalued assets and overstated liabilities. Consequently, there is an increasing gap between the book value and market value of firms. This gap restricts the relevance of information presented in financial statements and suggests that there is something missing in financial statements. This is the research problem being addressed in this study. While prior literature demonstrates that it has proven difficult to operationalise intangible forms of capital, there has been significant empirical attention and theoretical development in social and human forms. This thesis aims to contribute to accounting theory and practice by exploring the impact that board social and human capital have on firm market value. In light of extant research, it is hypothesised that social and human capital possessed at board level are positively related to the market value of firms. This study employs the Ohlson’s (1995) residual income valuation model to test the impact of social and human capital using a sample of UK firms listed on the FTSE All Share index for a period of 10 years (2001-2010). Social and human capital measures are derived from interlocking directorate ties and detailed biographic information of board directors. This study benefits from Pajek and Ucinet network packages to generate network maps and calculate positional metrics such as centrality and structural hole measures.
APA, Harvard, Vancouver, ISO, and other styles
7

Silva, Rodrigo Alves. "Viabilidade de utilização da teoria de opções reais no processo de avaliação de empresas de telecomunicações." Universidade de São Paulo, 2010. http://www.teses.usp.br/teses/disponiveis/18/18157/tde-08102010-084629/.

Full text
Abstract:
O processo de avaliação de empresas por modelos e técnicas formais tem por objetivo nortear a gestão e os grupos de interessados quanto à tomada de decisão ótima. Em geral, no processo de avaliação estes modelos são utilizados seguindo pressupostos acerca do valor dos benefícios da firma, dando a conotação de que o valor do negócio é o valor destes benefícios. Em empresas que atuam em mercados com alta competitividade e elevado nível de desenvolvimento e emprego de tecnologias e inovações, a utilização isolada de técnicas focadas em benefícios dos negócios atuais se mostram inadequadas para avaliar a habilidade da organização na resposta às variáveis mercadológicas. Sob este prisma, as vantagens advindas de estratégias competitivas e minimização das possibilidades de perdas do negócio, principalmente conquistadas através de estratégias de flexibilização e de geração de oportunidades de novos negócios se mostram importantes direcionadores de valor. O valor gerado por oportunidades e flexibilidades em empresas de telecomunicações é o foco da presente pesquisa que objetiva fundamentar em suas discussões e testes a viabilidade de incorporação do modelo de opções reais no processo de avaliação das empresas do setor, partindo do pressuposto de que o mercado, visualizando a importância das estratégias de gestão dos investimentos e da estrutura da empresa para o seu sucesso na geração de valor, remuneram estas organizações, atribuindo o valor de acordo com suas expectativas. Foram testados os modelos de efeitos fixos e aleatórios de dados em painel para verificar a significância das variáveis explicativas geradoras de valor potencial de opções reais. Os testes demonstram significância estatística das variáveis, embasando o modelo. Não obstante, a pesquisa posiciona estudos e levantamentos teóricos acerca dos modelos de avaliação abordados para contextualizar a utilidade do modelo de opções reais em processos de avaliação, bem como destaca a aplicabilidade procedimental do modelo de opções reais em conjunto com a técnica de fluxo de caixa descontado na avaliação de empresas do setor. Seus objetivos de discussão e averbação da aplicabilidade da teoria são alcançados, dado o conjunto de métodos empíricos e ilustrativos de sua técnica.
The process of business valuation for formal models and techniques aims to guide the management and stakeholder groups as to the optimal decision-making. In general, in the evaluating process these models are used following assumptions about the value of the firm benefits, giving the connotation that business value is the value of these benefits. In companies that operate in markets with high competitiveness and high level of development and use of technologies and innovations, the isolated use of techniques focused on the benefits of today\'s businesses have shown inadequate to assess the organization ability in response to marketing variables. From that perspective, the benefits arising from competitive strategies and minimization of business loss chances, mainly won through relaxation strategies and generating new business opportunities to show important value drivers. The value generated by the opportunities and flexibilities in the firm\'s telecommunications companies is the focus of this research that aims to support in their discussions and tests the feasibility of incorporating the real options model in the evaluation of companies in the sector, on the assumption that the market, seeing the importance of strategies for investment management and company structure for its success in generating value, remunerate these organizations, assigning the value according to your expectations. Models of fixed and random effects panel data were tested to assess the significance of the explanatory variables generating potential value of real options. The tests demonstrate statistical significance of the variables, basing the model. Nevertheless, this research positions studies and theoretical surveys about the valuation models addressed in order to contextualize the usefulness of the real options model in evaluation processes, and highlights the applicability of the real options model procedural in conjunction with the technique of cash flow discounted in evaluating companies. The goals for discussion and annotation of the theory applicability are achieved, given the set of empirical and illustrative of this technique.
APA, Harvard, Vancouver, ISO, and other styles
8

Deng, Cheng. "Time Series Decomposition Using Singular Spectrum Analysis." Digital Commons @ East Tennessee State University, 2014. https://dc.etsu.edu/etd/2352.

Full text
Abstract:
Singular Spectrum Analysis (SSA) is a method for decomposing and forecasting time series that recently has had major developments but it is not yet routinely included in introductory time series courses. An international conference on the topic was held in Beijing in 2012. The basic SSA method decomposes a time series into trend, seasonal component and noise. However there are other more advanced extensions and applications of the method such as change-point detection or the treatment of multivariate time series. The purpose of this work is to understand the basic SSA method through its application to the monthly average sea temperature in a point of the coast of South America, near where “EI Ni˜no” phenomenon originates, and to artificial time series simulated using harmonic functions. The output of the basic SSA method is then compared with that of other decomposition methods such as classic seasonal decomposition, X-11 decomposition using moving averages and seasonal decomposition by Loess (STL) that are included in some time series courses.
APA, Harvard, Vancouver, ISO, and other styles
9

Hoang, Thinh Quoc. "Exploring Vietnamese first-year English-major students’ motivation: A longitudinal, mixed-methods investigation." Thesis, Edith Cowan University, Research Online, Perth, Western Australia, 2021. https://ro.ecu.edu.au/theses/2423.

Full text
Abstract:
Learner motivation is recognised as a crucial determinant of successful second language (L2) learning. However, to date, little research has been directed into the motivational dimensions of L2 learning in Vietnam, where English has currently become the most popular foreign language with millions of learners nationwide. Further, there is a limited amount of research internationally that explores the motivational levels and development of L2 students at the transition from school level to higher education. This study aimed to develop a profile of the motivation and learning experiences of a cohort of Vietnamese first-year English-major students over one academic year. As an attempt to integrate the L2 research field with mainstream educational psychology, the study drew theoretically from Eccles et al.’s expectancy-value theory (EVT). This framework, though recognised as one of the most influential motivation theories, has received limited attention in the L2 field. Specifically, the research explored: the EVT constructs of attainment value (personal importance), intrinsic value, utility value, cost, perceived competence, and expectancies for success; their variations across the cohort over one year; their correlations; and their impacts on motivational indicators of English-major choice, English learning effort and willingness to communicate. The study also offers explanations for those variations. Informed by critical realist perspectives, the study adopted a longitudinal, explanatory mixed-methods design. A cohort of 149 first-year English-major students at one Vietnamese university were surveyed three times over one academic year. Drawing on the results of the first survey, a sample of 15 participants exhibiting a range of motivational profiles were recruited to take part in three rounds of individual interviews over the same year. Results demonstrated various explanatory powers that the EVT constructs had in understanding Vietnamese English-major students’ motivated behaviours. For example, while personal importance and utility value linked to English seemed to be more potent reasons for participants enrolling in an English major, their L2 learning engagement and willingness to communicate in English were linked more strongly to intrinsic value and expectancies for success. The study further revealed different developmental trajectories of student values and beliefs. While the students maintained relatively stable levels of personal importance and utility value, studying English became slightly less interesting to them. Regarding cost dimensions, the participants reported an increase in opportunity cost they perceived from iv studying English while becoming less anxious about speaking the language. For the two competence-related beliefs, while the students perceived an improvement in their English proficiency, they reported decreasing levels of expectancies for success and became more realistic about the potential to improve their English. The participants also reported a lower investment in learning effort and less willingness to communicate in English, which paralleled the declines in intrinsic value and expectancy beliefs. Interviews with participants revealed the impacts of different contextual and individual factors, especially those of teaching and learning activities on their L2 motivation. Overall, the findings of this study suggested that expectancy-value model provided a fresh but effective theoretical approach to understanding the motivational patterns of Vietnamese first-year English-major students and is potentially applicable to inquiry into L2 motivation in other contexts. Moreover, this study’s findings also contribute to extending current understandings of the EVT constructs. Finally, the findings from this study provide valuable insights and suggestions to better support English language learners in Vietnamese tertiary institutions and similar contexts.
APA, Harvard, Vancouver, ISO, and other styles
10

Dalben, Adilson 1965. "Fatores associados à proficiência em leitura e matemática : uma aplicação do modelo linear hierárquico com dados longitudinais do Projeto GERES." [s.n.], 2014. http://repositorio.unicamp.br/jspui/handle/REPOSIP/253935.

Full text
Abstract:
Orientadores: Luiz Carlos de Freitas, Dalton Francisco de Andrade
Tese (doutorado) - Universidade Estadual de Campinas, Faculdade de Educação
Made available in DSpace on 2018-08-24T22:44:15Z (GMT). No. of bitstreams: 1 Dalben_Adilson_D.pdf: 5011742 bytes, checksum: e9c6413b4e6fb98c276dcbdecd13440b (MD5) Previous issue date: 2014
Resumo: Esta pesquisa é um estudo sobre a eficácia e equidade escolar que tem ganhado atenção especial nos países que usam as avaliações em larga escala a serviço da gestão do sistema educativo. No Brasil, que desde a década de 1990 colocou a avaliação educacional como recurso central em suas políticas educacionais, mas coletando dados seccionais, que são muito frágeis para essa finalidade. Essa fragilidade decorre da alta associação que os fatores extraescolares, sobretudo o nível socioeconômico do aluno, têm sobre as medidas de proficiência. Diante disso, foram usados dados longitudinais e a análise foi feita por meio de modelos lineares hierárquicos. Esta pesquisa teve como objetivo principal desenvolver um modelo estatístico capaz de identificar tais fatores para a realidade brasileira, considerando que a aprendizagem é um processo complexo, isto é, ela é influenciada simultaneamente por múltiplos fatores. Foram desenvolvidos modelos de valor agregado que não só identificam tais variáveis, como também caracterizam sua influência em alunos com distintas proficiências no início de cada período de escolarização. A base de dados utilizada nesses modelos foi fornecida pelo Projeto GERES, que, no período de 2005 a 2008, coletou dados dos mesmos alunos de 1ª a 4ª séries de uma amostra de 312 escolas em cinco grandes cidades brasileiras. Foram medidas as proficiências em Leitura e Matemática de 35.538 alunos e coletadas informações de contexto desses alunos, seus familiares, professores, diretores e escola. Após a redução do grande número de informações disponibilizadas pelo Projeto GERES, feita por meio da Análise Fatorial Exploratória (AFE), as variáveis resultantes foram reorganizadas em três arquivos usados para análise em modelos lineares hierárquicos de três níveis. Os resultados encontrados evidenciam uma significativa instabilidade nos efeitos que as variáveis têm sobre a proficiência, tanto em leitura quanto em matemática. Ao final da pesquisa, são encontrados alguns fatores que influenciam positivamente e negativamente a proficiência em Leitura e Matemática e outros que afetam especificamente cada uma dessas áreas, indicando que podem colaborar para o aumento da eficácia e da equidade das escolas. No entanto, constatam-se também algumas variáveis que têm comportamentos incoerentes com o esperado e outras com comportamentos opostos nas duas áreas. Assim, dos achados das pesquisas, comprova-se que, com base nos dados utilizados, procedimentos metodológicos e modelos estatísticos adotados, os modelos de valor agregado melhoram a confiabilidade das análises em comparação aos modelos que usam dados seccionais, mas ainda são inviáveis como ferramentas para a gestão do sistema educativo, sobretudo para o uso meritocrático de seus resultados. Dessa forma, esta pesquisa corrobora os achados de outras realizadas no âmbito internacional e permite afirmar que a qualidade da modelagem estatística depende da qualidade dos dados que busca modelar, podendo gerar distorções, estabelecer relações inesperadas ou levar a conclusões equivocadas. Em contrapartida, trata-se de recursos que podem ser usados no sistema educativo, fornecendo dados importantes para a orientação das políticas públicas numa perspectiva de avaliação formativa, com vistas ao melhoramento da qualidade de ensino oferecido pelas escolas e à melhor formação dos profissionais docentes e não-docentes que nelas trabalham
Abstract: This research is a study on school effectiveness and equality in Brazil, adding up to a number of other researches that have drawn special attention in countries that use large-scale evaluations at the service of the education system management. In the Brazil has regarded the educational evaluation as a central resource in national education policies, but using cross-sectional data, which are far more fragile for such purpose. This fragility has derived from the great influence that extra-school factors, particularly the students¿ socioeconomic status, exerts on proficiency measures. Longitudinal data was used in the analyses with hierarchical linear models. The main objective of this research was to develop a statistical model to identify such factors in the Brazilian reality, considering that learning is a complex process, i.e. it is simultaneously influenced by multiple factors. Value-added models were developed not only to identify such variables, but also to characterize their influence on students showing different proficiencies at the beginning of every school term. The data base used in those models was provided by the GERES Project, which collected data of the same students from the 1st to the 4th grade from a sample of 312 schools in five Brazilian cities from 2005 to 2008. Proficiencies of 35,538 students were measured, and information about these students¿ context, family, teachers, principals and school were gathered. After the reduction of the great amount of information made available by the GERES Project by means of Exploratory Factor Analysis (EFA), the resulting variables were reorganized in three files used for analysis in three-level hierarchical linear models. The results evidenced significant instability in the effects that the variables have on proficiency both in Reading and in Mathematics. At the end of the research, some factors that influence Reading and Mathematics proficiency either positively or negatively, as well as other factors that specifically affect one of those areas, were found, thus indicating that they may contribute to increased school effectiveness and equality. However, some variables whose behavior was inconsistent with the one expected, and others with opposite behaviors in the two areas were also found. Therefore, from the research findings, based on the data used, the methodological procedures and the statistical models adopted, it has been evidenced that value-added models improve the analysis reliability in comparison with models that use cross-sectional data, but they are still impracticable as tools for education system management, particularly for meritocratic use of their results. Hence, this research has corroborated the findings of other studies carried out over the world and has enabled us to state that the quality of the statistical modeling depends on the quality of data that it attempts to model, and it may generate distortions, establish unexpected relationships or lead to misleading conclusions. On the other hand, these resources may be used in the education system by providing important data for guiding public policies in a educative evaluation perspective, aiming at improving the quality of teaching offered by schools, teachers and other professionals that work in the school setting
Doutorado
Ensino e Práticas Culturais
Doutor em Educação
APA, Harvard, Vancouver, ISO, and other styles
More sources

Books on the topic "Longitudinal Value"

1

Longitudinal Modeling of Student Achievement Conference (2005 University of Maryland). Longitudinal and value added models of student performance. Maple Grove, Minn: JAM Press, 2006.

Find full text
APA, Harvard, Vancouver, ISO, and other styles
2

Bigelow, J. H. Measuring the strategic value of the Armed Forces Health Longitudinal Technology Application (AHLTA). Santa Monica, CA: Rand, Center for Military Health Policy Research, 2008.

Find full text
APA, Harvard, Vancouver, ISO, and other styles
3

M, Harris Katherine, and Hillestad R. J. 1942-, eds. Measuring the strategic value of the Armed Forces health longitudinal technology application (AHLTA). Santa Monica, CA: RAND, 2008.

Find full text
APA, Harvard, Vancouver, ISO, and other styles
4

Heckman, James J. The microeconomic evaluation of social programs and economic institutions ; The value of longitudinal data for solving the problem of selection bias in evaluating the impact of treatments on outcomes. Nankang, Taipei, Taiwan, Republic of China: Institute of Economics, Academia Sinica, 1988.

Find full text
APA, Harvard, Vancouver, ISO, and other styles
5

Hopkins, David M. Changing career values: Professional employees in the 1980s. Bethlehem, PA: CPC Foundation, 1986.

Find full text
APA, Harvard, Vancouver, ISO, and other styles
6

Yates, Lyn. 12 to 18: A qualitative longitudinal study of students, values and difference in Australian schools. Deakin West, ACT: Australian Curriculum Studies Association, 2007.

Find full text
APA, Harvard, Vancouver, ISO, and other styles
7

Becoming men: The development of aspirations, values, and adaptational styles. New York: Plenum Press, 1992.

Find full text
APA, Harvard, Vancouver, ISO, and other styles
8

Sutradhar, Brajendra C., ed. ISS-2012 Proceedings Volume On Longitudinal Data Analysis Subject to Measurement Errors, Missing Values, and/or Outliers. New York, NY: Springer New York, 2013. http://dx.doi.org/10.1007/978-1-4614-6871-4.

Full text
APA, Harvard, Vancouver, ISO, and other styles
9

Matějů, Petr. Changing conditions, changing values?: Changes in the position and perception of education during the post-communist transformation : the case of the Czech Republic. Prague: Institute of Sociology, Academy of Sciences of the Czech Republic, 1993.

Find full text
APA, Harvard, Vancouver, ISO, and other styles
10

Dubois, Paul. Gender differences in value orientation towards sports: A longitudinal analysis. 1990.

Find full text
APA, Harvard, Vancouver, ISO, and other styles
More sources

Book chapters on the topic "Longitudinal Value"

1

Nan, Xiaoli. "Dynamics of Consumer Beliefs Toward Advertising in the 1990S: Evidence from Longitudinal National Data." In Creating and Delivering Value in Marketing, 143–47. Cham: Springer International Publishing, 2014. http://dx.doi.org/10.1007/978-3-319-11848-2_47.

Full text
APA, Harvard, Vancouver, ISO, and other styles
2

Ytterstad, Stig, and Johan Olaisen. "Reflection on the Value of Using a Longitudinal Mixed Method." In Learning Transformational Leadership, 55–74. Cham: Springer International Publishing, 2023. http://dx.doi.org/10.1007/978-3-031-21824-8_4.

Full text
APA, Harvard, Vancouver, ISO, and other styles
3

Ahearne, Michael, Ronald Jelinek, John Mathieu, Adam Rapp, and Niels Schillewaert. "A Longitudinal Examination of Individual, Organizational and Contextual Factors on Technology Adoption and Job Performance." In Creating and Delivering Value in Marketing, 171. Cham: Springer International Publishing, 2014. http://dx.doi.org/10.1007/978-3-319-11848-2_60.

Full text
APA, Harvard, Vancouver, ISO, and other styles
4

Bussaka, H., K. Yoshizumi, Y. Sakamoto, Y. Korogi, J. Shinzato, K. Ito, Y. Yamashita, T. Sakae, and M. Takahashi. "The value of MRI in ossification of the posterior longitudinal ligament." In Proceedings of the XIV Symposium Neuroradiologicum, 340–41. Berlin, Heidelberg: Springer Berlin Heidelberg, 1991. http://dx.doi.org/10.1007/978-3-642-49329-4_116.

Full text
APA, Harvard, Vancouver, ISO, and other styles
5

Pereira, Ana, Han Brezet, Helena Pereira, and Joost Vogtländer. "Materials and Design: Investigating the Durability of Cork Products – a Longitudinal Study with Users." In Design for Innovative Value Towards a Sustainable Society, 350–55. Dordrecht: Springer Netherlands, 2012. http://dx.doi.org/10.1007/978-94-007-3010-6_68.

Full text
APA, Harvard, Vancouver, ISO, and other styles
6

Robertson, Stephen P., and Richie Poulton. "Longitudinal Studies of Gene-Environment Interaction in Common Diseases-Good Value for Money?" In Genetic Effects on Environmental Vulnerability to Disease, 128–42. Chichester, UK: John Wiley & Sons, Ltd, 2008. http://dx.doi.org/10.1002/9780470696781.ch10.

Full text
APA, Harvard, Vancouver, ISO, and other styles
7

Miller, Nancy E. "Introduction: The Prediction of Psychopathology Across the Life-Span: The Value of Longitudinal Research." In Life-Span Research on the Prediction of Psychopathology, 1–15. London: Routledge, 2021. http://dx.doi.org/10.4324/9781003165187-1.

Full text
APA, Harvard, Vancouver, ISO, and other styles
8

Berkowitz, Samuel, Samuel Berkowitz, and Samuel Berkowitz. "The Value of Longitudinal Facial and Dental Casts Records in Clinical Research and Treatment Analysis." In Cleft Lip and Palate, 35–43. Berlin, Heidelberg: Springer Berlin Heidelberg, 2012. http://dx.doi.org/10.1007/978-3-642-30770-6_2.

Full text
APA, Harvard, Vancouver, ISO, and other styles
9

Nagy, Gabriel, Jessica Garrett, Ulrich Trautwein, Kai S. Cortina, Jürgen Baumert, and Jacquelynne S. Eccles. "Gendered high school course selection as a precursor of gendered careers: The mediating role of self-concept and intrinsic value." In Gender and occupational outcomes: Longitudinal assessments of individual, social, and cultural influences., 115–43. Washington: American Psychological Association, 2008. http://dx.doi.org/10.1037/11706-004.

Full text
APA, Harvard, Vancouver, ISO, and other styles
10

Archer, Melenie, Dawn A. Morley, and Jean-Baptiste R. G. Souppez. "Real World Learning and Authentic Assessment." In Applied Pedagogies for Higher Education, 323–41. Cham: Springer International Publishing, 2020. http://dx.doi.org/10.1007/978-3-030-46951-1_14.

Full text
Abstract:
Abstract Archer, Morley and Souppez critique the value of building authentic assessment to reflect better a real world learning approach that prepares students more explicitly for employment after graduation. The two case studies within this chapter are drawn from the different disciplines of festival and event management and yacht design; both aim to prepare students for their respective industries from the onset of their degree programmes. The case studies present how the use of well-managed pedagogic strategies, such as peer review and assessment, reflective practice and the use of formative feedback, can prepare students successfully for authentic and high-risk summative assessments. The authors argue for a learning and teaching approach that emphasises sequential, real world assessment that focuses on student longitudinal development.
APA, Harvard, Vancouver, ISO, and other styles

Conference papers on the topic "Longitudinal Value"

1

"Shear Capacity of Concrete Beams Containing Longitudinal Reinforcement and Steel Fibers." In SP-216: Innovations in Fiber-Reinforced Concrete for Value. American Concrete Institute, 2003. http://dx.doi.org/10.14359/12893.

Full text
APA, Harvard, Vancouver, ISO, and other styles
2

Boni, Mohammad Al, Seth Green, Megan Stiles, Katherine Harton, and Donald E. Brown. "Longitudinal Analysis of Linguistic flexibility of Value-motivated Groups." In 2018 IEEE International Conference on Big Data (Big Data). IEEE, 2018. http://dx.doi.org/10.1109/bigdata.2018.8622319.

Full text
APA, Harvard, Vancouver, ISO, and other styles
3

Peiteado, D., I. Monjo, L. Nuño, A. Villalba, M. E. Miranda, P. Fortea, E. De Miguel, and A. Balsa. "SAT0633 Ultrasound predictive value in prearthritis. a prospective longitudinal study." In Annual European Congress of Rheumatology, EULAR 2018, Amsterdam, 13–16 June 2018. BMJ Publishing Group Ltd and European League Against Rheumatism, 2018. http://dx.doi.org/10.1136/annrheumdis-2018-eular.4853.

Full text
APA, Harvard, Vancouver, ISO, and other styles
4

Chu, Pin-Yu, Hsien-Lee Tseng, Chung-Pin Lee, Wan-Ling Huang, Tong-Yi Huang, and Yung-Tai Hung. "A Longitudinal Research of Public Value and Electronic Governance Development in Taiwan." In ICEGOV '17: 10th International Conference on Theory and Practice of Electronic Governance. New York, NY, USA: ACM, 2017. http://dx.doi.org/10.1145/3047273.3047387.

Full text
APA, Harvard, Vancouver, ISO, and other styles
5

Wickramasinghe, Nilmini. "Ensuring High Value National e-Health Solutions Using the Business Value of IT." In Digital Restructuring and Human (Re)action. University of Maribor Press, 2022. http://dx.doi.org/10.18690/um.fov.4.2022.3.

Full text
Abstract:
This paper provides insights from a pilot study which is part of a larger longitudinal research project focused on assessing the value of different national digital health solutions. In this study, the focus is on Australia’s My Health Record and the German e-Health Card. The adopted methodology is a multicase qualitative approach which enables deeper insights to be uncovered. Data collection is from multiple sources including semi-structured interviews, surveys and the analysis of key documents. An initial model for assessing the value of the digital health solution is presented and findings are analyzed against this model to provide recommendations and understand critical success factors for designing, developing and deploying national digital health solutions.
APA, Harvard, Vancouver, ISO, and other styles
6

Ojala, Arto, and Nina Helander. "Value Creation and Evolution of a Value Network: A Longitudinal Case Study on a Platform-as-a-Service Provider." In 2014 47th Hawaii International Conference on System Sciences (HICSS). IEEE, 2014. http://dx.doi.org/10.1109/hicss.2014.128.

Full text
APA, Harvard, Vancouver, ISO, and other styles
7

Feng, Kun, Chuan He, and Mingqing Xiao. "Limited Value of Longitudinal Seam Stretching for Underwater High-Speed Railway Shield Tunnel." In Third International Conference on Transportation Engineering (ICTE). Reston, VA: American Society of Civil Engineers, 2011. http://dx.doi.org/10.1061/41184(419)232.

Full text
APA, Harvard, Vancouver, ISO, and other styles
8

Chen, Joel, Joel Liem, Anita Kozyrskyj, Allan B. Becker, and Clare D. Ramsey. "A Longitudinal Study On The Diagnostic Value Of Bronchoprovocation Testing In Childhood Asthma." In American Thoracic Society 2011 International Conference, May 13-18, 2011 • Denver Colorado. American Thoracic Society, 2011. http://dx.doi.org/10.1164/ajrccm-conference.2011.183.1_meetingabstracts.a5481.

Full text
APA, Harvard, Vancouver, ISO, and other styles
9

Oda, Masahiro, Takayuki Kitasaka, Kazuhiro Furukawa, Osamu Watanabe, Takafumi Ando, Hidemi Goto, and Kensaku Mori. "Detection of longitudinal ulcer using roughness value for computer aided diagnosis of Crohn's disease." In SPIE Medical Imaging, edited by Ronald M. Summers and Bram van Ginneken. SPIE, 2011. http://dx.doi.org/10.1117/12.877507.

Full text
APA, Harvard, Vancouver, ISO, and other styles
10

Le Roux, Pieter, and Pim Brackenie. "What is the real added value of sustainable office buildings? - Initiating a longitudinal study." In 22nd Annual European Real Estate Society Conference. European Real Estate Society, 2015. http://dx.doi.org/10.15396/eres2015_160.

Full text
APA, Harvard, Vancouver, ISO, and other styles

Reports on the topic "Longitudinal Value"

1

Kowalski, Amanda. What Do Longitudinal Data on Millions of Hospital Visits Tell us About The Value of Public Health Insurance as a Safety Net for the Young and Privately Insured? Cambridge, MA: National Bureau of Economic Research, January 2015. http://dx.doi.org/10.3386/w20887.

Full text
APA, Harvard, Vancouver, ISO, and other styles
2

Chakraborty, Hrishikesh. A mixed model approach for intent-to-treat analysis in longitudinal clinical trials with missing values. Washington, DC: RTI Press, April 2009. http://dx.doi.org/10.3768/rtipress.2009.mr.0009.0903.

Full text
APA, Harvard, Vancouver, ISO, and other styles
3

Jdanov, Dmitri A., and Vladimir M. Shkolnikov. An R-script for the assessment of the cross-sectional and the longitudinal components of a difference between two values of an aggregate demographic measure by contour replacement. Rostock: Max Planck Institute for Demographic Research, December 2014. http://dx.doi.org/10.4054/mpidr-tr-2014-003.

Full text
APA, Harvard, Vancouver, ISO, and other styles
4

Rahmani, Mehran, Xintong Ji, and Sovann Reach Kiet. Damage Detection and Damage Localization in Bridges with Low-Density Instrumentations Using the Wave-Method: Application to a Shake-Table Tested Bridge. Mineta Transportation Institute, September 2022. http://dx.doi.org/10.31979/mti.2022.2033.

Full text
Abstract:
This study presents a major development to the wave method, a methodology used for structural identification and monitoring. The research team tested the method for use in structural damage detection and damage localization in bridges, the latter being a challenging task. The main goal was to assess capability of the improved method by applying it to a shake-table-tested prototype bridge with sparse instrumentation. The bridge was a 4-span reinforced concrete structure comprising two columns at each bent (6 columns total) and a flat slab. It was tested to failure using seven biaxial excitations at its base. Availability of a robust and verified method, which can work with sparse recording stations, can be valuable for detecting damage in bridges soon after an earthquake. The proposed method in this study includes estimating the shear (cS) and the longitudinal (cL) wave velocities by fitting an equivalent uniform Timoshenko beam model in impulse response functions of the recorded acceleration response. The identification algorithm is enhanced by adding the model’s damping ratio to the unknown parameters, as well as performing the identification for a range of initial values to avoid early convergence to a local minimum. Finally, the research team detect damage in the bridge columns by monitoring trends in the identified shear wave velocities from one damaging event to another. A comprehensive comparison between the reductions in shear wave velocities and the actual observed damages in the bridge columns is presented. The results revealed that the reduction of cS is generally consistent with the observed distribution and severity of damage during each biaxial motion. At bents 1 and 3, cS is consistently reduced with the progression of damage. The trends correctly detected the onset of damage at bent 1 during biaxial 3, and damage in bent 3 during biaxial 4. The most significant reduction was caused by the last two biaxial motions in bents 1 and 3, also consistent with the surveyed damage. In bent 2 (middle bent), the reduction trend in cS was relatively minor, correctly showing minor damage at this bent. Based on these findings, the team concluded that the enhanced wave method presented in this study was capable of detecting damage in the bridge and identifying the location of the most severe damage. The proposed methodology is a fast and inexpensive tool for real-time or near real-time damage detection and localization in similar bridges, especially those with sparsely deployed accelerometers.
APA, Harvard, Vancouver, ISO, and other styles
5

McKenna, Patrick, and Mark Evans. Emergency Relief and complex service delivery: Towards better outcomes. Queensland University of Technology, June 2021. http://dx.doi.org/10.5204/rep.eprints.211133.

Full text
Abstract:
Emergency Relief (ER) is a Department of Social Services (DSS) funded program, delivered by 197 community organisations (ER Providers) across Australia, to assist people facing a financial crisis with financial/material aid and referrals to other support programs. ER has been playing this important role in Australian communities since 1979. Without ER, more people living in Australia who experience a financial crisis might face further harm such as crippling debt or homelessness. The Emergency Relief National Coordination Group (NCG) was established in April 2020 at the start of the COVID-19 pandemic to advise the Minister for Families and Social Services on the implementation of ER. To inform its advice to the Minister, the NCG partnered with the Institute for Governance at the University of Canberra to conduct research to understand the issues and challenges faced by ER Providers and Service Users in local contexts across Australia. The research involved a desktop review of the existing literature on ER service provision, a large survey which all Commonwealth ER Providers were invited to participate in (and 122 responses were received), interviews with a purposive sample of 18 ER Providers, and the development of a program logic and theory of change for the Commonwealth ER program to assess progress. The surveys and interviews focussed on ER Provider perceptions of the strengths, weaknesses, future challenges, and areas of improvement for current ER provision. The trend of increasing case complexity, the effectiveness of ER service delivery models in achieving outcomes for Service Users, and the significance of volunteering in the sector were investigated. Separately, an evaluation of the performance of the NCG was conducted and a summary of the evaluation is provided as an appendix to this report. Several themes emerged from the review of the existing literature such as service delivery shortcomings in dealing with case complexity, the effectiveness of case management, and repeat requests for service. Interviews with ER workers and Service Users found that an uplift in workforce capability was required to deal with increasing case complexity, leading to recommendations for more training and service standards. Several service evaluations found that ER delivered with case management led to high Service User satisfaction, played an integral role in transforming the lives of people with complex needs, and lowered repeat requests for service. A large longitudinal quantitative study revealed that more time spent with participants substantially decreased the number of repeat requests for service; and, given that repeat requests for service can be an indicator of entrenched poverty, not accessing further services is likely to suggest improvement. The interviews identified the main strengths of ER to be the rapid response and flexible use of funds to stabilise crisis situations and connect people to other supports through strong local networks. Service Users trusted the system because of these strengths, and ER was often an access point to holistic support. There were three main weaknesses identified. First, funding contracts were too short and did not cover the full costs of the program—in particular, case management for complex cases. Second, many Service Users were dependent on ER which was inconsistent with the definition and intent of the program. Third, there was inconsistency in the level of service received by Service Users in different geographic locations. These weaknesses can be improved upon with a joined-up approach featuring co-design and collaborative governance, leading to the successful commissioning of social services. The survey confirmed that volunteers were significant for ER, making up 92% of all workers and 51% of all hours worked in respondent ER programs. Of the 122 respondents, volunteers amounted to 554 full-time equivalents, a contribution valued at $39.4 million. In total there were 8,316 volunteers working in the 122 respondent ER programs. The sector can support and upskill these volunteers (and employees in addition) by developing scalable training solutions such as online training modules, updating ER service standards, and engaging in collaborative learning arrangements where large and small ER Providers share resources. More engagement with peak bodies such as Volunteering Australia might also assist the sector to improve the focus on volunteer engagement. Integrated services achieve better outcomes for complex ER cases—97% of survey respondents either agreed or strongly agreed this was the case. The research identified the dimensions of service integration most relevant to ER Providers to be case management, referrals, the breadth of services offered internally, co-location with interrelated service providers, an established network of support, workforce capability, and Service User engagement. Providers can individually focus on increasing the level of service integration for their ER program to improve their ability to deal with complex cases, which are clearly on the rise. At the system level, a more joined-up approach can also improve service integration across Australia. The key dimensions of this finding are discussed next in more detail. Case management is key for achieving Service User outcomes for complex cases—89% of survey respondents either agreed or strongly agreed this was the case. Interviewees most frequently said they would provide more case management if they could change their service model. Case management allows for more time spent with the Service User, follow up with referral partners, and a higher level of expertise in service delivery to support complex cases. Of course, it is a costly model and not currently funded for all Service Users through ER. Where case management is not available as part of ER, it might be available through a related service that is part of a network of support. Where possible, ER Providers should facilitate access to case management for Service Users who would benefit. At a system level, ER models with a greater component of case management could be implemented as test cases. Referral systems are also key for achieving Service User outcomes, which is reflected in the ER Program Logic presented on page 31. The survey and interview data show that referrals within an integrated service (internal) or in a service hub (co-located) are most effective. Where this is not possible, warm referrals within a trusted network of support are more effective than cold referrals leading to higher take-up and beneficial Service User outcomes. However, cold referrals are most common, pointing to a weakness in ER referral systems. This is because ER Providers do not operate or co-locate with interrelated services in many cases, nor do they have the case management capacity to provide warm referrals in many other cases. For mental illness support, which interviewees identified as one of the most difficult issues to deal with, ER Providers offer an integrated service only 23% of the time, warm referrals 34% of the time, and cold referrals 43% of the time. A focus on referral systems at the individual ER Provider level, and system level through a joined-up approach, might lead to better outcomes for Service Users. The program logic and theory of change for ER have been documented with input from the research findings and included in Section 4.3 on page 31. These show that ER helps people facing a financial crisis to meet their immediate needs, avoid further harm, and access a path to recovery. The research demonstrates that ER is fundamental to supporting vulnerable people in Australia and should therefore continue to be funded by government.
APA, Harvard, Vancouver, ISO, and other styles
6

Event-Triggered Adaptive Robust Control for Lateral Stability of Steer-by-Wire Vehicles with Abrupt Nonlinear Faults. SAE International, July 2022. http://dx.doi.org/10.4271/2022-01-5056.

Full text
Abstract:
Because autonomous vehicles (AVs) equipped with active front steering have the features of time varying, uncertainties, high rate of fault, and high burden on the in-vehicle networks, this article studies the adaptive robust control problem for improving lateral stability in steer-by-wire (SBW) vehicles in the presence of abrupt nonlinear faults. First, an upper-level robust H∞ controller is designed to obtain the desired front-wheel steering angle for driving both the yaw rate and the sideslip angle to reach their correct values. Takagi-Sugeno (T-S) fuzzy modeling method, which has shown the extraordinary ability in coping with the issue of nonlinear, is applied to deal with the challenge of the changing longitudinal velocity. The output of the upper controller can be calculated by a parallel distributed compensation (PDC) scheme. Then an event-triggered adaptive fault-tolerant lower controller (ET-AFTC) is proposed to drive the whole SBW system driving the desired steering angle offered by the upper controller with fewer communication resources and strong robustness. By employing a backstepping technique, the tracking performance is improved. The dynamic surface control (DSC) approach is used to avoid the problem of repeated differentiations, and Nussbaum function is adopted to overcome the difficulty of unknown nonlinear control gain. Both the stability of the upper and lower controllers can be guaranteed by Lyapunov functions. Finally, the simulations of Matlab/Simulink are given to show that the proposed control strategy is effectively able to deal with the abrupt nonlinear fault via less communication resources and perform better in ensuring the yaw stability of the vehicle.
APA, Harvard, Vancouver, ISO, and other styles
You might also be interested in the extended bibliographies on the topic 'Longitudinal Value' for particular source types:
Journal articles Dissertations / Theses Books
We offer discounts on all premium plans for authors whose works are included in thematic literature selections. Contact us to get a unique promo code!

To the bibliography