title: Meta-analysis comparing the efficacy of ACT and CBT for academic procrastination

authors: Carter, Adrian

subjects: behaviour

abstract: The efficacy of acceptance and commitment therapy (ACT) and cognitive behavioural therapy (CBT) was meta-analytically examined to identify if they are effective interventions for reducing the academic procrastination of students. A comparison of the efficacies of ACT and CBT as the more effective treatment in reducing academic procrastination in students at post-treatment and follow-up was also assessed. I conducted a meta-analysis of nine randomised-control trials. A large overall pooled effect size of g = -1.96, 95% CI [-4.48, 0.57] was found in favour of ACT and CBT treatment interventions compared to control in reducing academic procrastination. CBT was more effective at reducing academic procrastination post-treatment with a moderate effect size, g = -0.69, 95% CI [-1.14, 0.24] compared to ACT, with a small effect size, g = -0.33, 95% CI [-1.38, 0.72]. This is one of the first meta-analyses to directly compare ACT and CBT interventions in relation to the academic procrastination of students. Limitations and future recommendations are discussed.

text: Meta-analysis comparing the efficacy of ACT and CBT for academic procrastination The efficacy of acceptance and commitment therapy (ACT) and cognitive behavioural therapy (CBT) was meta-analytically examined to identify if they are effective interventions for reducing the academic procrastination of students. A comparison of the efficacies of ACT and CBT as the more effective treatment in reducing academic procrastination in students at post-treatment and follow-up was also assessed. I conducted a meta-analysis of nine randomised-control trials. A large overall pooled effect size of g = -1.96, 95% CI [-4.48, 0.57] was found in favour of ACT and CBT treatment interventions compared to control in reducing academic procrastination. CBT was more effective at reducing academic procrastination post-treatment with a moderate effect size, g = -0.69, 95% CI [-1.14, 0.24] compared to ACT, with a small effect size, g = -0.33, 95% CI [-1.38, 0.72]. This is one of the first meta-analyses to directly compare ACT and CBT interventions in relation to the academic procrastination of students. Limitations and future recommendations are discussed.

year: 2023

title: Curing kinetics and effects of fibre surface treatment and curing parameters on the interfacial and tensile properties of hemp/epoxy composites

authors: Islam, Mohammad Saiful

subjects: hemp fibre

abstract: The curing kinetics of neat epoxy (NE) and hemp fibre/epoxy composites was studied and assessed using two dynamic models (the Kissinger and Flynn-Wall-Ozawa Models) and an isothermal model (the Autocatalytic Model) which was generally supported by the experimental data obtained from dynamic and isothermal differential scanning calorimetry (DSC) scans. The activation energies for the curing of composites exhibited lower values compared to curing of NE which is believed to be due to higher nucleophilic activity of the amine groups of the curing agent in the presence of fibres. The highest tensile strength, σ was obtained with composites produced with an epoxy to curing agent ratio of 1:1 and the highest Young's modulus, E was obtained with an epoxy to curing agent ratio of 1:1.2. Alkali treated hemp fibre/epoxy (ATFE) composites were found to have higher σ and E values compared to those for untreated hemp fibre/epoxy (UTFE) composites which was consistent with the trend for interfacial shear strength (IFSS) values. Composites σ and E were found to be higher for a processing temperature of 70°C than for 25°C for both UTFE and ATFE composites, but were found to decrease as the curing temperature was increased further to 120°C.

text: Curing kinetics and effects of fibre surface treatment and curing parameters on the interfacial and tensile properties of hemp/epoxy composites The curing kinetics of neat epoxy (NE) and hemp fibre/epoxy composites was studied and assessed using two dynamic models (the Kissinger and Flynn-Wall-Ozawa Models) and an isothermal model (the Autocatalytic Model) which was generally supported by the experimental data obtained from dynamic and isothermal differential scanning calorimetry (DSC) scans. The activation energies for the curing of composites exhibited lower values compared to curing of NE which is believed to be due to higher nucleophilic activity of the amine groups of the curing agent in the presence of fibres. The highest tensile strength, σ was obtained with composites produced with an epoxy to curing agent ratio of 1:1 and the highest Young's modulus, E was obtained with an epoxy to curing agent ratio of 1:1.2. Alkali treated hemp fibre/epoxy (ATFE) composites were found to have higher σ and E values compared to those for untreated hemp fibre/epoxy (UTFE) composites which was consistent with the trend for interfacial shear strength (IFSS) values. Composites σ and E were found to be higher for a processing temperature of 70°C than for 25°C for both UTFE and ATFE composites, but were found to decrease as the curing temperature was increased further to 120°C.

year: 2009

title: Ko wai tēnei e tū ake nei? Activating collectivity and accountability through grounded positioning

authors: Rata, Arama

abstract: Building on conference conversations about positionality—about who we are and how our identities shape our views of the world, about the connections and disconnections experienced between us, and about our proximities to place, power, and privilege—this piece brings together four conference participants to continue to reflect on what positionality means, on why it is important, and on how to practice it in non-performative, well-developed, and mutually nourishing ways. Their dialogue reflects active and critical positioning in process and practice, creating opportunities for acknowledging our relationships and activating both collectivity and accountability in the various spaces where we live, work, create, and hope.

text: Ko wai tēnei e tū ake nei? Activating collectivity and accountability through grounded positioning Building on conference conversations about positionality—about who we are and how our identities shape our views of the world, about the connections and disconnections experienced between us, and about our proximities to place, power, and privilege—this piece brings together four conference participants to continue to reflect on what positionality means, on why it is important, and on how to practice it in non-performative, well-developed, and mutually nourishing ways. Their dialogue reflects active and critical positioning in process and practice, creating opportunities for acknowledging our relationships and activating both collectivity and accountability in the various spaces where we live, work, create, and hope.

year: 2021-12