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1 – 10 of over 8000Geming Zhang, Lin Yang and Wenxiang Jiang
The purpose of this study is to introduce the top-level design ideas and the overall architecture of earthquake early-warning system for high speed railways in China, which is…
Abstract
Purpose
The purpose of this study is to introduce the top-level design ideas and the overall architecture of earthquake early-warning system for high speed railways in China, which is based on P-wave earthquake early-warning and multiple ways of rapid treatment.
Design/methodology/approach
The paper describes the key technologies that are involved in the development of the system, such as P-wave identification and earthquake early-warning, multi-source seismic information fusion and earthquake emergency treatment technologies. The paper also presents the test results of the system, which show that it has complete functions and its major performance indicators meet the design requirements.
Findings
The study demonstrates that the high speed railways earthquake early-warning system serves as an important technical tool for high speed railways to cope with the threat of earthquake to the operation safety. The key technical indicators of the system have excellent performance: The first report time of the P-wave is less than three seconds. From the first arrival of P-wave to the beginning of train braking, the total delay of onboard emergency treatment is 3.63 seconds under 95% probability. The average total delay for power failures triggered by substations is 3.3 seconds.
Originality/value
The paper provides a valuable reference for the research and development of earthquake early-warning system for high speed railways in other countries and regions. It also contributes to the earthquake prevention and disaster reduction efforts.
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Matthew David Phillips, Rhian Parham, Katrina Hunt and Jake Camp
Autism spectrum conditions (ASC) and borderline personality disorder (BPD) have overlapping symptom profiles. Dialectical behaviour therapy (DBT) is an established treatment for…
Abstract
Purpose
Autism spectrum conditions (ASC) and borderline personality disorder (BPD) have overlapping symptom profiles. Dialectical behaviour therapy (DBT) is an established treatment for self-harm and BPD, but little research has investigated the outcomes of DBT for ASC populations. This exploratory service evaluation aims to investigate the outcomes of a comprehensive DBT programme for adolescents with a diagnosis of emerging BPD and a co-occurring ASC diagnosis as compared to those without an ASC diagnosis.
Design/methodology/approach
Differences from the start to end of treatment in the frequency of self-harming behaviours, BPD symptoms, emotion dysregulation, depression, anxiety, the number of A&E attendances and inpatient bed days, education and work status, and treatment non-completion rates were analysed for those with an ASC diagnosis, and compared between those with an ASC diagnosis and those without.
Findings
Significant medium to large reductions in self-harming behaviours, BPD symptoms, emotion dysregulation and inpatient bed days were found for those with an ASC diagnosis by the end of treatment. There were no significant differences between those with an ASC and those without in any outcome or in non-completion rates. These findings indicate that DBT may be a useful treatment model for those with an ASC diagnosis, though all results are preliminary and require replication.
Originality/value
To the best of the authors’ knowledge, this is the first study to report the outcomes of a comprehensive DBT programme for adolescents with an ASC diagnosis, and to compare the changes in outcomes between those with a diagnosis and those without.
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This survey explores the application of real options theory to the field of health economics. The integration of options theory offers a valuable framework to address these…
Abstract
Purpose
This survey explores the application of real options theory to the field of health economics. The integration of options theory offers a valuable framework to address these challenges, providing insights into healthcare investments, policy analysis and patient care pathways.
Design/methodology/approach
This research employs the real options theory, a financial concept, to delve into health economics challenges. Through a systematic approach, three distinct models rooted in this theory are crafted and analyzed. Firstly, the study examines the value of investing in emerging health technology, factoring in future advantages, associated costs and unpredictability. The second model is patient-centric, evaluating the choice between immediate treatment switch and waiting for more clarity, while also weighing the associated risks. Lastly, the research assesses pandemic-related government policies, emphasizing the importance of delaying decisions in the face of uncertainties, thereby promoting data-driven policymaking.
Findings
Three different real options models are presented in this study to illustrate their applicability and value in aiding decision-makers. (1) The first evaluates investments in new technology, analyzing future benefits, discount rates and benefit volatility to determine investment value. (2) In the second model, a patient has the option of switching treatments now or waiting for more information before optimally switching treatments. However, waiting has its risks, such as disease progression. By modeling the potential benefits and risks of both options, and factoring in the time value, this model aids doctors and patients in making informed decisions based on a quantified assessment of potential outcomes. (3) The third model concerns pandemic policy: governments can end or prolong lockdowns. While awaiting more data on the virus might lead to economic and societal strain, the model emphasizes the economic value of deferring decisions under uncertainty.
Practical implications
This research provides a quantified perspective on various decisions in healthcare, from investments in new technology to treatment choices for patients to government decisions regarding pandemics. By applying real options theory, stakeholders can make more evidence-driven decisions.
Social implications
Decisions about patient care pathways and pandemic policies have direct societal implications. For instance, choices regarding the prolongation or ending of lockdowns can lead to economic and societal strain.
Originality/value
The originality of this study lies in its application of real options theory, a concept from finance, to the realm of health economics, offering novel insights and analytical tools for decision-makers in the healthcare sector.
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Krystal Wilkinson and Clare Mumford
One in six people globally are affected by infertility, and many turn to fertility treatment in a bid to have a child(ren). While many countries offer work-related legislative…
Abstract
One in six people globally are affected by infertility, and many turn to fertility treatment in a bid to have a child(ren). While many countries offer work-related legislative protections and provisions for those who are successful in conceiving a child, in the form of maternity and paternity-related supports and protection again discrimination – the same cannot be said for those struggling to conceive. There are similar inequalities when it comes to workplace policy and support. Drawing on data from our two-year research study on “complex fertility journeys” and employment, this chapter sets out the work-life challenges that arise when individuals find themselves navigating the considerable “reproductive work” of fertility treatment alongside the demands of paid employment, and how affected employees respond. It also touches on the challenges experienced by line managers tasked with offering support. The chapter concludes with implications for practice in terms of making organizations more “fertility friendly,” which should extend beyond support for attending fertility treatment appointments to include awareness raising, manager training, and support for the varied outcomes of treatment cycles, including involuntary childlessness.
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Ernest Mbamalu Ezeh, Ezeamaku U Luvia and Onukwuli O D
Gourd fibres (GF) are a natural biodegradable fibre material with excellent mechanical properties and high tensile strength. The use of natural fibres in composite materials has…
Abstract
Purpose
Gourd fibres (GF) are a natural biodegradable fibre material with excellent mechanical properties and high tensile strength. The use of natural fibres in composite materials has gained popularity in recent years due to their various advantages, including renewability, low cost, low density and biodegradability. Gourd fibre is one such natural fibre that has been identified as a potential reinforcement material for composites. However, it has low surface energy and hydrophobic nature, which makes it difficult to bond with matrix materials such as polyester. To overcome this problem, chemically adapted gourd fibre has been proposed as a solution. Chemical treatment is one of the most widely used methods to improve the properties of natural fibres. This research evaluates the feasibility and effectiveness of incorporating chemically adapted gourd fibre into polyester composites for industrial fabrication. The purpose of this study is to examine the application of chemically modified GF in the production of polyester composite engineering materials.
Design/methodology/approach
This work aims to evaluate the effectiveness of chemically adapted gourd fibre in improving the adhesion of gourd fibre with polyester resin in composite fabrication by varying the GF from 5 to 20 wt.%. The study involves the preparation of chemically treated gourd fibre through surface modification using sodium hydroxide (NaOH), permanganate (KMnO4) and acetic acid (CH3COOH) coupling agents. The mechanical properties of the modified fibre and composites were investigated. It was then characterized using scanning electron microscopy (SEM) and Fourier transform infrared spectroscopy (FTIR) to determine the changes in surface morphology and functional groups.
Findings
FTIR characterization showed that NaOH treatment caused cellulose depolymerization and caused a significant increase in the hydroxyl and carboxyl groups, showing improved surface functional groups; KMnO4 treatment oxidized the fibre surface and caused the formation of surface oxide groups; and acetic acid treatment induced changes that primarily affected the ester and hydroxyl groups. SEM study showed that NaOH treatment changed the surface morphology of the gourd fibre, introduced voids and reduced hydrophilic tendencies. The tensile strength of the modified gourd fibres increased progressively as the concentration of the modification chemicals increased compared to the untreated fibres.
Originality/value
This work presents the designed composite with density, mechanical properties and microstructure, showing remarkable improvements in the engineering properties. An 181.5% improvement in tensile strength and a 56.63% increase in flexural strength were got over that of the unreinforced polyester. The findings from this work will contribute to the understanding of the potential of chemically adapted gourd fibre as a reinforcement material for composites and provide insights into the development of sustainable composite materials.
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Maochuan Wang, Xixiong Xu and Siqi Wang
This study aims to examine the impact of employee treatment on stock price crash risk in emerging markets. The study further sheds light on the economic channels and boundary…
Abstract
Purpose
This study aims to examine the impact of employee treatment on stock price crash risk in emerging markets. The study further sheds light on the economic channels and boundary conditions between employee treatment and crash risk.
Design/methodology/approach
This study employs a large-scale archival dataset of Chinese A-share listed firms covering 2010 to 2021. To establish causality, the study leverages multi-way fixed effects, Oster’s test, change regression and instrumental variable methods to alleviate endogeneity concerns.
Findings
The results reveal that employee-friendly treatment leads to a lower crash risk. Moreover, improving internal control quality and enhancing firm reputation appear to be the two plausible economic channels through which employee treatment mitigates crash risk. Cross-sectionally, the documented impact is more evident for human-capital-intensive firms, firms with weaker external monitoring and those operating in fiercely competitive industries.
Originality/value
This study is among the first to show that employee treatment has a favorable consequence for shareholder benefit through reducing crash risk. The study thus adds to the ongoing debate regarding the relationship between employee treatment and shareholder wealth. The study also extends the nascent literature on the role of rank-and-file employees in shaping corporate information landscapes.
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Wendy Nieto-Gutiérrez, Aleksandar Cvetković-Vega, María E. Cáceres-Távara and Christian Ponce-Torres
The prison population is seldom studied and often overlooked in many countries despite their vulnerability to long-term illness. This study aims to explore the factors associated…
Abstract
Purpose
The prison population is seldom studied and often overlooked in many countries despite their vulnerability to long-term illness. This study aims to explore the factors associated with the non-treatment for long-term illnesses among incarcerated individuals.
Design/methodology/approach
This study is a cross-sectional analysis. The authors conducted a secondary data analysis using information collected in the Peruvian census of incarcerated individuals. The study population consisted of incarcerated individuals diagnosed with a long-term illness. To evaluate the factors associated with non-treatment, the authors used a Poisson regression model.
Findings
The authors included 12,512 incarcerated individuals (age: 40.9 ± 13.1 years), and 39% of them did not receive treatment for their long-term illness. The authors observed that non-treatment was statistically associated with gender, age, having children, use of the Spanish language, sexual identity, judicial situation, penitentiary location, discrimination inside the penitentiary and health insurance before incarceration. However, only having children (prevalence ratio [PR]: 1.11, confidence interval [CI]95% 1.03–1.19), using the Spanish language (PR: 1.15, CI95%: 1.01–1.31), being in a penitentiary not in Lima (PR: 1.11, CI95%: 1.06–1.17) and perceiving discrimination inside the penitentiary (PR: 1.12, CI95% 1.06–1.18) increased the prevalence of non-treatment.
Originality/value
Identifying the factors associated with non-treatment will allow us to implement measures for prioritizing groups and developing strategies for the evaluation, close follow-up of their health and management of comorbidities.
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Heeyun Kim and Paula Clasing-Manquian
Education researchers have been urged to utilize causal inference methods to estimate the policy effect more rigorously. While randomized controlled trials (RCTs) are the gold…
Abstract
Education researchers have been urged to utilize causal inference methods to estimate the policy effect more rigorously. While randomized controlled trials (RCTs) are the gold standard for assessing causality, RCTs are infeasible in some educational settings, particularly when ethical concerns or high cost are involved. Quasi-experimental research designs are the best alternative approach to study educational topics not amenable to RCTs, as they mimic experimental conditions and use statistical techniques to reduce bias from variables omitted in the empirical models. In this chapter, we introduce and discuss the core concepts, applicability, and limitations of three quasi-experimental methods in higher education research (i.e., difference-in-differences, instrumental variables, and regression discontinuity). By introducing each of these techniques, we aim to expand the higher education researcher's toolbox and encourage the use of these quasi-experimental methods to evaluate educational interventions.
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Lucy Jade Jones and Ceri Woodrow
The purpose of this clinical audit was to review the adherence to the 2017 care and treatment review policy across two NHS assessment and treatment units. Care and treatment…
Abstract
Purpose
The purpose of this clinical audit was to review the adherence to the 2017 care and treatment review policy across two NHS assessment and treatment units. Care and treatment reviews should be offered to people with an intellectual disability and/or autism who are at risk of admission into a mental health hospital.
Design/methodology/approach
Admission and discharge data was collected across two assessment and treatment units between January 2019 and December 2022. Adherence to the care and treatment review policy was also reviewed as was length of inpatient stay. A retrospective evaluation was conducted. Triangulation of data was collected via the trusts’ electronic patient record system and NHS analytics team. Descriptive statistics, Mann–Whitney U test and a one-way ANOVA with post hoc tests were used in the analysis.
Findings
An increase in behaviours of challenge and deterioration of mental health were the main reasons for admission. Forty-nine percent (30) of those admitted to the assessment and treatment units accessed a care and treatment review. Care and treatment reviews were more frequently provided for individuals experiencing longer inpatient stays.
Originality/value
There is limited evidence relating to outcomes and impact of care and treatment reviews. Further research is required to explore effectiveness of care and treatment reviews to understand benefits and appropriately prioritise resource.
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Gary Lamph, Peggy Mulongo, Paul Boland, Tamar Jeynes, Colin King, Rachel-Rose Burrell, Catherine Harris and Sarah Shorrock
The UK Mental Health Act (MHA) Reform (2021) on race and ethnicity promotes new governmental strategies to tackle inequalities faced by ethnically racialised communities detained…
Abstract
Purpose
The UK Mental Health Act (MHA) Reform (2021) on race and ethnicity promotes new governmental strategies to tackle inequalities faced by ethnically racialised communities detained under the MHA. However, there is a scarcity in personality disorder and ethnicity research. This study aims to investigate what is available in the UK in relation to prevalence, aetiology and treatment provisions of personality disorder for ethnically diverse patients, and to understand their interconnectedness with mental health and criminal justice service provisions. Three key areas of investigations were reviewed, (1) UK prevalence of personality disorder amongst ethnically diverse individuals; (2) aetiology of personality disorder and ethnicity; (3) treatment provisions for ethnically diverse individuals diagnosed with personality disorder.
Design/methodology/approach
A scoping study review involved a comprehensive scanning of literature published between 2003 and 2022. Screening and data extraction tools were co-produced by an ethnically diverse research team, including people with lived experience of mental health and occupational expertise. Collaborative work was complete throughout the review, ensuring the research remained valid and reliable.
Findings
Ten papers were included. Results demonstrated an evident gap in the literature. Of these, nine papers discussed their prevalence, three papers informed on treatment provisions and only one made reference to aetiology. This review further supports the notion that personality disorder is under-represented within ethnic minority populations, particularly of African, Caribbean and British heritage, however, the reasons for this are multi-facetted and complex, hence, requiring further investigation. The evidence collected relating to treatment provisions of personality disorder was limited and of low quality to reach a clear conclusion on effective treatments for ethnically diverse patients.
Originality/value
The shortage of findings on prevalence, aetiology and treatment provisions, emphasises the need to prioritise further research in this area. Results provide valuable insights into this limited body of knowledge from a UK perspective.
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