Advanced search in
Research products
arrow_drop_down
Searching FieldsTerms
Any field
arrow_drop_down
includes
arrow_drop_down
Include:
67,760 Research products, page 1 of 6,776

  • Publications
  • Research software
  • Other research products
  • Open Access
  • GB
  • e-Prints Soton

10
arrow_drop_down
Relevance
arrow_drop_down
  • Open Access English
    Authors: 
    Mark-Alexander Sujan; Hannah Howard-Franks; Garry Swann; Kirsti Soanes; Catherine Pope; Robert Crouch; Sophie Staniszewska; Elaine Maxwell; Huayi Huang; Matthew Cooke;
    Country: United Kingdom

    Introduction: Emergency care services are looking for new models of care delivery to deal with changing patient demographics and increased pressures. It has been suggested that advanced non-medical practitioners might be valuable for delivering such new models of care. However, it is not clear what the impact of the deployment of advanced non-medical practitioners in emergency care is. This scoping study addresses the following research question: What is known from the literature about the different types of impact of the deployment of advanced (autonomous) non-medical practitioners in emergency care?Methods and analysis: A scoping study will be undertaken to examine and map the impact of the deployment of advanced non-medical practitioners in emergency care. The scoping study follows the methodology proposed by Arksey and O'Malley. Searches will be carried out on databases of peer-reviewed literature and other sources to systematically identify and characterise the literature. Papers will be screened using a 2-stage process to identify the most relevant literature. Papers will be screened by title and abstract, followed by full-text review. Data abstraction and synthesis will be performed using a narrative thematic analysis.Ethics and dissemination: We will communicate the findings to Health Education England, NHS Improvement and the Royal College of Emergency Medicine through existing links provided by members of the project team. We anticipate that the findings will also be of interest to other similar organisations internationally. By identifying gaps in the research literature, we anticipate that the study will generate recommendations for informing future high-quality research studies about the impact of advanced non-medical practitioners in emergency care as well as in other settings. The research findings will be submitted for publication to relevant peer-reviewed journals as well as professional magazines. The scoping study uses only previously published material, and does not require ethical review.

  • Open Access English
    Authors: 
    Marcus J. Chambers; Maria Kyriacou;
    Publisher: Multidisciplinary Digital Publishing Institute
    Country: United Kingdom

    This paper considers the specification and performance of jackknife estimators of the autoregressive coefficient in a model with a near-unit root. The limit distributions of sub-sample estimators that are used in the construction of the jackknife estimator are derived, and the joint moment generating function (MGF) of two components of these distributions is obtained and its properties explored. The MGF can be used to derive the weights for an optimal jackknife estimator that removes fully the first-order finite sample bias from the estimator. The resulting jackknife estimator is shown to perform well in finite samples and, with a suitable choice of the number of sub-samples, is shown to reduce the overall finite sample root mean squared error, as well as bias. However, the optimal jackknife weights rely on knowledge of the near-unit root parameter and a quantity that is related to the long-run variance of the disturbance process, which are typically unknown in practice, and so, this dependence is characterised fully and a discussion provided of the issues that arise in practice in the most general settings.

  • Open Access English
    Authors: 
    Fernandez Comesana, Daniel; Morales Cervera, Sandra; Takeuchi, Takashi; Holland, Keith R.;
    Country: United Kingdom
  • Open Access English
    Authors: 
    Halloran, John; Hornecker, Eva; Fitzpatrick, Geraldine; Millard, David E.; Weal, Mark J.;
    Country: United Kingdom

    Museum research is a burgeoning area of research where ubiquitous computing has already made an impact in enhancing user experiences. The goal of the Chawton House project is to extend this work by introducing ubicomp not to a museum as such, but a historic English manor house and its grounds. This presents a number of novel challenges relating to the kinds of visitors, the nature of visits, the specific character of the estate, the creation of a persistent and evolving system, and the process of developing it together with Chawton House staff.

  • Open Access English
    Authors: 
    Farhangi, Siavash;
    Publisher: University of Southampton
    Country: United Kingdom

    The objective of this research was to quantify the effects of various parameters (e.g. soil strength, interface adhesion and cell geometry) on the stress-strain behaviour of the soil adjacent to a penetrating spade cell. Parallel numerical fluid flow and soil penetration analyses were conducted to investigate the stress-strain changes that occur around a spade cell during penetration. These analyses were used to assess the influence of various parameters on soil behaviour for a three-dimensional penetration problem. The results of these analyses showed that: (1) the shape of the spade cell’s tip influences the strains generated around the spade cell; (2) the strain path method is capable of predicting soil deformation in deep three-dimensional penetration problems; (3) the deformations generated around the spade cell can only be successfully evaluated by performing three-dimensional analyses; (4) the stress-strain changes generated in the soil adjacent to the spade cell are influenced by to the soil undrained shear strength, soil shear modulus, interface adhesion, and the aspect ratio of the spade cell; (5) the influence of adhesion on deformations in soil penetration analyses is similar to the effect of viscosity in fluid flow analyses; (6) the horizontal stress distributions are relatively uniform along the inner-half of the spade cell width; and (7) horizontal stresses on the spade cell face at the end of penetration are higher in models where the boundary parallel to the spade cell face is displacement-controlled (rather than stress-controlled). It was concluded that the relative influence of various parameters on the spade cell measurements should be considered in comparing the in-situ stresses measured by spade cells in various field and chamber tests.

  • Open Access English
    Authors: 
    Babajide Oyewo; Olayinka Moses; Olayinka Erin;
    Country: United Kingdom

    Purpose This study aims to investigate the drivers and impact of balanced scorecard (BSC) usage on organizational effectiveness in manufacturing companies. The objectives of the paper were to assess the organizational factors affecting the usage intensity of the BSC; the relative benefits of BSC determining its adoption speed; and the extent to which BSC usage enhances organizational effectiveness. Design/methodology/approach The study adopted a survey research design. Data collection was through a structured questionnaire administered on senior accounting/ finance personnel of 300 manufacturing companies that are members of the Manufacturers Association of Nigeria. Binary logistic regression analysis, discriminant analysis and structural equation modeling (maximum likelihood estimation method) were used to analyze survey data obtained from 104 BSC adopters. Findings Result shows that the three organizational factors affecting BSC usage intensity are affiliation to a foreign entity, availability of specialist skills and business strategy (strategic pattern). The strongest predictor is, however, the availability of specialist skills. The strongest determinants of the BSC adoption speed are the need for financial stability and the importance of customer feedbacks. The impact of BSC usage on organizational effectiveness is positive, statistically significant but weak. The inability of BSC usage to contribute appreciably to organizational effectiveness is attributable to the lack of integration among the performance measures in the BSC framework and the shallow usage rate of BSC. Practical implications Although it is commendable that financial stability and customer satisfaction strongly drive BSC adoption speed, the low rating recorded by other factors related to product development, employee development and process improvement suggests that the performance measures in the BSC framework are not used in an integrative manner. This also confirms that the BSC, like other innovative management accounting techniques, is applied at a rudimentary level by organizations in Nigeria. Originality/value The current study contributes to knowledge by exposing the organizational factors and relative benefits driving BSC adoption. It provides empirical evidence on why the BSC may not deliver the optimal benefit of improving organizational effectiveness despite its popularity and potential as an integrated performance measurement (IPM) apparatus that can add value to organizations. The paper adds to the scarce literature on IPM in developing countries. Drawing from the result that availability of specialist skills is the strongest predictor of BSC usage intensity, the practice of enmeshing the management accounting function with general accounting/finance should be discouraged.

  • Open Access English
    Authors: 
    Michael R. Belmont; Mustafa Al-Ani; Peter Challenor; Jacqueline Christmas; Philip A. Wilson;
    Country: United Kingdom

    Abstract There is a growing practical interest in the ability to increase the sea states at which marine operations can be safely undertaken by exploiting the quiescent periods that are well known to exist under a wide range of sea conditions. While the actual prediction of quiescent periods at sea for the control of operations is a deterministic process, the long term planning of future maritime tasks that rely on these quiescent periods is a statistical process involving the anticipated quiescence properties of the forecasted sea conditions in the geographical region of interest. It is in principle possible to obtain such data in tabular form either large scale simulation or from field data. However, such simulations are computationally intensive and libraries of appropriate field data are not common. Thus, it is clearly attractive to develop techniques that exploit standard wave spectral models for describing the quiescence statistics directly from such spectra. The present study focuses upon such techniques and is a first step towards the production of a computationally low-cost quiescence prediction tool and compares its efficacy against simulations. Two significant properties emerge for a large class of wave spectral models that encompasses the ubiquitous Neumann and Pierson Moskowitz or Bretschneider forms. Firstly, the auto-correlation function of the wave profile that are required to produce the quiescence property can be obtained analytically in terms of standard special functions. This considerably reduces the computational cost making desktop computer-based planning tools a reality. Secondly, for each class of these parametric spectra, the probability of a given number of consecutive wave heights (normalised to the significant wave heights) less than some critical value is in fact independent of absolute wave height. Thus, for a broad class of practically interesting wave spectra all that is required to obtain the statistical distribution of the quiescent periods is simple rescaling.

  • Publication . Conference object . 2011
    Open Access English
    Authors: 
    Alowisheq, Areeb;
    Country: United Kingdom

    Existing approaches to Semantic Web Services (SWS) require both a domain ontology and a semantic description of the service. We propose EXPRESS a lightweight approach to SWS. Its simplicity stems from the similarities between REST and the Semantic Web such as resource-realization, self-describing representations, and uniform interfaces. The semantics of a service is elicited from the resource descriptions in the domain ontology and the semantics of the uniform interface, hence eliminating the need for ontologically describing services. In this poster we describe EXPRESS and show how it represents different service types. It also discusses our ongoing and future work on service discovery and choreography

  • Open Access English
    Authors: 
    Alireza Ejlali; Bashir M. Al-Hashimi; P. Rosinger; Seyed Ghassem Miremadi; Luca Benini;
    Countries: United Kingdom, Italy

    High reliability against noise, high performance, and low energy consumption are key objectives in the design of on-chip networks. Recently some researchers have considered the impact of various error-control schemes on these objectives and on the tradeoff between them. In all these works performance and reliability are measured separately. However, we will argue in this paper that the use of error-control schemes in on-chip networks results in degradable systems, hence, performance and reliability must be measured jointly using a unified measure, i.e., performability. Based on the traditional concept of performability, we provide a definition for the ¿Interconnect Performability¿. Analytical models are developed for interconnect performability and expected energy consumption. A detailed comparative analysis of the error-control schemes using the performability analytical models and SPICE simulations is provided taking into consideration voltage swing variations (used to reduce interconnect energy consumption) and variations in wire length. Furthermore, the impact of noise power and time constraint on the effectiveness of error-control schemes are analyzed.

  • Open Access
    Authors: 
    Norbani Abdullah; Lailatun Nazirah Ozair; Habibah Samsudin; Graham J. Tizzard; Simon J. Coles; Mohammad Isa Mohamadin;
    Publisher: Informa UK Limited
    Country: United Kingdom

    [Cu2(4-XC6H4COO)4(C2H5OH)2] (X = F, Br) reacted with 2,2′-bipyridine (bpy) to form mononuclear complexes [Cu(4-FC6H4COO)2 (bpy)(H2O)] (1) and [Cu(4-BrC6H4COO)2(bpy)(H2O)]·H2O (2), respectively. These complexes formed single crystals. Complex 1 crystallized in the orthorhombic Pccn space group, while 2 crystallized in the triclinic P-1 space group. In addition, [Cu2(4-XC6H4COO)4(C2H5OH)2] (X = F, Cl, Br, I) reacted with 4,4'-bis(dodecyl)-2,2'-bipyridine (L) to form mononuclear complexes [Cu(4-FC6H4COO)2(L)]·H2O (3), [Cu(4-ClC6H4COO)2(L)]·½H2O (4) and [Cu(4-BrC6H4COO)2(L)]·½H2O (5), and a dinuclear complex, [Cu2(4-IC6H4COO)4(L)2] (6), respectively. Complex 3 was a semisolid at room temperature, while 4-6 formed single crystals. Complexes 4 and 5 crystallized in the triclinic P-1 space group, while 6 crystallized in the monoclinic P21/c space group. Complexes 4-6 suffered structural changes on heating to form dinuclear thermotropic metallomesogenic complexes. The electronic effect of halogens and linear alkyl chains were studied towards their molecular structures and mesomorphisms.

Advanced search in
Research products
arrow_drop_down
Searching FieldsTerms
Any field
arrow_drop_down
includes
arrow_drop_down
Include:
67,760 Research products, page 1 of 6,776
  • Open Access English
    Authors: 
    Mark-Alexander Sujan; Hannah Howard-Franks; Garry Swann; Kirsti Soanes; Catherine Pope; Robert Crouch; Sophie Staniszewska; Elaine Maxwell; Huayi Huang; Matthew Cooke;
    Country: United Kingdom

    Introduction: Emergency care services are looking for new models of care delivery to deal with changing patient demographics and increased pressures. It has been suggested that advanced non-medical practitioners might be valuable for delivering such new models of care. However, it is not clear what the impact of the deployment of advanced non-medical practitioners in emergency care is. This scoping study addresses the following research question: What is known from the literature about the different types of impact of the deployment of advanced (autonomous) non-medical practitioners in emergency care?Methods and analysis: A scoping study will be undertaken to examine and map the impact of the deployment of advanced non-medical practitioners in emergency care. The scoping study follows the methodology proposed by Arksey and O'Malley. Searches will be carried out on databases of peer-reviewed literature and other sources to systematically identify and characterise the literature. Papers will be screened using a 2-stage process to identify the most relevant literature. Papers will be screened by title and abstract, followed by full-text review. Data abstraction and synthesis will be performed using a narrative thematic analysis.Ethics and dissemination: We will communicate the findings to Health Education England, NHS Improvement and the Royal College of Emergency Medicine through existing links provided by members of the project team. We anticipate that the findings will also be of interest to other similar organisations internationally. By identifying gaps in the research literature, we anticipate that the study will generate recommendations for informing future high-quality research studies about the impact of advanced non-medical practitioners in emergency care as well as in other settings. The research findings will be submitted for publication to relevant peer-reviewed journals as well as professional magazines. The scoping study uses only previously published material, and does not require ethical review.

  • Open Access English
    Authors: 
    Marcus J. Chambers; Maria Kyriacou;
    Publisher: Multidisciplinary Digital Publishing Institute
    Country: United Kingdom

    This paper considers the specification and performance of jackknife estimators of the autoregressive coefficient in a model with a near-unit root. The limit distributions of sub-sample estimators that are used in the construction of the jackknife estimator are derived, and the joint moment generating function (MGF) of two components of these distributions is obtained and its properties explored. The MGF can be used to derive the weights for an optimal jackknife estimator that removes fully the first-order finite sample bias from the estimator. The resulting jackknife estimator is shown to perform well in finite samples and, with a suitable choice of the number of sub-samples, is shown to reduce the overall finite sample root mean squared error, as well as bias. However, the optimal jackknife weights rely on knowledge of the near-unit root parameter and a quantity that is related to the long-run variance of the disturbance process, which are typically unknown in practice, and so, this dependence is characterised fully and a discussion provided of the issues that arise in practice in the most general settings.

  • Open Access English
    Authors: 
    Fernandez Comesana, Daniel; Morales Cervera, Sandra; Takeuchi, Takashi; Holland, Keith R.;
    Country: United Kingdom
  • Open Access English
    Authors: 
    Halloran, John; Hornecker, Eva; Fitzpatrick, Geraldine; Millard, David E.; Weal, Mark J.;
    Country: United Kingdom

    Museum research is a burgeoning area of research where ubiquitous computing has already made an impact in enhancing user experiences. The goal of the Chawton House project is to extend this work by introducing ubicomp not to a museum as such, but a historic English manor house and its grounds. This presents a number of novel challenges relating to the kinds of visitors, the nature of visits, the specific character of the estate, the creation of a persistent and evolving system, and the process of developing it together with Chawton House staff.

  • Open Access English
    Authors: 
    Farhangi, Siavash;
    Publisher: University of Southampton
    Country: United Kingdom

    The objective of this research was to quantify the effects of various parameters (e.g. soil strength, interface adhesion and cell geometry) on the stress-strain behaviour of the soil adjacent to a penetrating spade cell. Parallel numerical fluid flow and soil penetration analyses were conducted to investigate the stress-strain changes that occur around a spade cell during penetration. These analyses were used to assess the influence of various parameters on soil behaviour for a three-dimensional penetration problem. The results of these analyses showed that: (1) the shape of the spade cell’s tip influences the strains generated around the spade cell; (2) the strain path method is capable of predicting soil deformation in deep three-dimensional penetration problems; (3) the deformations generated around the spade cell can only be successfully evaluated by performing three-dimensional analyses; (4) the stress-strain changes generated in the soil adjacent to the spade cell are influenced by to the soil undrained shear strength, soil shear modulus, interface adhesion, and the aspect ratio of the spade cell; (5) the influence of adhesion on deformations in soil penetration analyses is similar to the effect of viscosity in fluid flow analyses; (6) the horizontal stress distributions are relatively uniform along the inner-half of the spade cell width; and (7) horizontal stresses on the spade cell face at the end of penetration are higher in models where the boundary parallel to the spade cell face is displacement-controlled (rather than stress-controlled). It was concluded that the relative influence of various parameters on the spade cell measurements should be considered in comparing the in-situ stresses measured by spade cells in various field and chamber tests.

  • Open Access English
    Authors: 
    Babajide Oyewo; Olayinka Moses; Olayinka Erin;
    Country: United Kingdom

    Purpose This study aims to investigate the drivers and impact of balanced scorecard (BSC) usage on organizational effectiveness in manufacturing companies. The objectives of the paper were to assess the organizational factors affecting the usage intensity of the BSC; the relative benefits of BSC determining its adoption speed; and the extent to which BSC usage enhances organizational effectiveness. Design/methodology/approach The study adopted a survey research design. Data collection was through a structured questionnaire administered on senior accounting/ finance personnel of 300 manufacturing companies that are members of the Manufacturers Association of Nigeria. Binary logistic regression analysis, discriminant analysis and structural equation modeling (maximum likelihood estimation method) were used to analyze survey data obtained from 104 BSC adopters. Findings Result shows that the three organizational factors affecting BSC usage intensity are affiliation to a foreign entity, availability of specialist skills and business strategy (strategic pattern). The strongest predictor is, however, the availability of specialist skills. The strongest determinants of the BSC adoption speed are the need for financial stability and the importance of customer feedbacks. The impact of BSC usage on organizational effectiveness is positive, statistically significant but weak. The inability of BSC usage to contribute appreciably to organizational effectiveness is attributable to the lack of integration among the performance measures in the BSC framework and the shallow usage rate of BSC. Practical implications Although it is commendable that financial stability and customer satisfaction strongly drive BSC adoption speed, the low rating recorded by other factors related to product development, employee development and process improvement suggests that the performance measures in the BSC framework are not used in an integrative manner. This also confirms that the BSC, like other innovative management accounting techniques, is applied at a rudimentary level by organizations in Nigeria. Originality/value The current study contributes to knowledge by exposing the organizational factors and relative benefits driving BSC adoption. It provides empirical evidence on why the BSC may not deliver the optimal benefit of improving organizational effectiveness despite its popularity and potential as an integrated performance measurement (IPM) apparatus that can add value to organizations. The paper adds to the scarce literature on IPM in developing countries. Drawing from the result that availability of specialist skills is the strongest predictor of BSC usage intensity, the practice of enmeshing the management accounting function with general accounting/finance should be discouraged.

  • Open Access English
    Authors: 
    Michael R. Belmont; Mustafa Al-Ani; Peter Challenor; Jacqueline Christmas; Philip A. Wilson;
    Country: United Kingdom

    Abstract There is a growing practical interest in the ability to increase the sea states at which marine operations can be safely undertaken by exploiting the quiescent periods that are well known to exist under a wide range of sea conditions. While the actual prediction of quiescent periods at sea for the control of operations is a deterministic process, the long term planning of future maritime tasks that rely on these quiescent periods is a statistical process involving the anticipated quiescence properties of the forecasted sea conditions in the geographical region of interest. It is in principle possible to obtain such data in tabular form either large scale simulation or from field data. However, such simulations are computationally intensive and libraries of appropriate field data are not common. Thus, it is clearly attractive to develop techniques that exploit standard wave spectral models for describing the quiescence statistics directly from such spectra. The present study focuses upon such techniques and is a first step towards the production of a computationally low-cost quiescence prediction tool and compares its efficacy against simulations. Two significant properties emerge for a large class of wave spectral models that encompasses the ubiquitous Neumann and Pierson Moskowitz or Bretschneider forms. Firstly, the auto-correlation function of the wave profile that are required to produce the quiescence property can be obtained analytically in terms of standard special functions. This considerably reduces the computational cost making desktop computer-based planning tools a reality. Secondly, for each class of these parametric spectra, the probability of a given number of consecutive wave heights (normalised to the significant wave heights) less than some critical value is in fact independent of absolute wave height. Thus, for a broad class of practically interesting wave spectra all that is required to obtain the statistical distribution of the quiescent periods is simple rescaling.

  • Publication . Conference object . 2011
    Open Access English
    Authors: 
    Alowisheq, Areeb;
    Country: United Kingdom

    Existing approaches to Semantic Web Services (SWS) require both a domain ontology and a semantic description of the service. We propose EXPRESS a lightweight approach to SWS. Its simplicity stems from the similarities between REST and the Semantic Web such as resource-realization, self-describing representations, and uniform interfaces. The semantics of a service is elicited from the resource descriptions in the domain ontology and the semantics of the uniform interface, hence eliminating the need for ontologically describing services. In this poster we describe EXPRESS and show how it represents different service types. It also discusses our ongoing and future work on service discovery and choreography

  • Open Access English
    Authors: 
    Alireza Ejlali; Bashir M. Al-Hashimi; P. Rosinger; Seyed Ghassem Miremadi; Luca Benini;
    Countries: United Kingdom, Italy

    High reliability against noise, high performance, and low energy consumption are key objectives in the design of on-chip networks. Recently some researchers have considered the impact of various error-control schemes on these objectives and on the tradeoff between them. In all these works performance and reliability are measured separately. However, we will argue in this paper that the use of error-control schemes in on-chip networks results in degradable systems, hence, performance and reliability must be measured jointly using a unified measure, i.e., performability. Based on the traditional concept of performability, we provide a definition for the ¿Interconnect Performability¿. Analytical models are developed for interconnect performability and expected energy consumption. A detailed comparative analysis of the error-control schemes using the performability analytical models and SPICE simulations is provided taking into consideration voltage swing variations (used to reduce interconnect energy consumption) and variations in wire length. Furthermore, the impact of noise power and time constraint on the effectiveness of error-control schemes are analyzed.

  • Open Access
    Authors: 
    Norbani Abdullah; Lailatun Nazirah Ozair; Habibah Samsudin; Graham J. Tizzard; Simon J. Coles; Mohammad Isa Mohamadin;
    Publisher: Informa UK Limited
    Country: United Kingdom

    [Cu2(4-XC6H4COO)4(C2H5OH)2] (X = F, Br) reacted with 2,2′-bipyridine (bpy) to form mononuclear complexes [Cu(4-FC6H4COO)2 (bpy)(H2O)] (1) and [Cu(4-BrC6H4COO)2(bpy)(H2O)]·H2O (2), respectively. These complexes formed single crystals. Complex 1 crystallized in the orthorhombic Pccn space group, while 2 crystallized in the triclinic P-1 space group. In addition, [Cu2(4-XC6H4COO)4(C2H5OH)2] (X = F, Cl, Br, I) reacted with 4,4'-bis(dodecyl)-2,2'-bipyridine (L) to form mononuclear complexes [Cu(4-FC6H4COO)2(L)]·H2O (3), [Cu(4-ClC6H4COO)2(L)]·½H2O (4) and [Cu(4-BrC6H4COO)2(L)]·½H2O (5), and a dinuclear complex, [Cu2(4-IC6H4COO)4(L)2] (6), respectively. Complex 3 was a semisolid at room temperature, while 4-6 formed single crystals. Complexes 4 and 5 crystallized in the triclinic P-1 space group, while 6 crystallized in the monoclinic P21/c space group. Complexes 4-6 suffered structural changes on heating to form dinuclear thermotropic metallomesogenic complexes. The electronic effect of halogens and linear alkyl chains were studied towards their molecular structures and mesomorphisms.

Send a message
How can we help?
We usually respond in a few hours.