A 3D numerical model to estimate lightning types for PyroCb thundercloud
- Barman, Surajit, Shah, Rakibuzzaman, Islam, Syed, Kumar, Apurv
- Authors: Barman, Surajit , Shah, Rakibuzzaman , Islam, Syed , Kumar, Apurv
- Date: 2024
- Type: Text , Journal article
- Relation: Applied Sciences (Switzerland) Vol. 14, no. 12 (2024), p.
- Full Text:
- Reviewed:
- Description: Pyrocumulonimbus (pyroCb) thunderclouds, produced from extreme bushfires, can initiate frequent cloud-to-ground (CG) lightning strikes containing extended continuing currents. This, in turn, can ignite new spot fires and inflict massive harm on the environment and infrastructures. This study presents a 3D numerical thundercloud model for estimating the lightning of different types and its striking zone for the conceptual tripole thundercloud structure which is theorized to produce the lightning phenomenon in pyroCb storms. More emphasis is given to the lower positive charge layer, and the impacts of strong wind shear are also explored to thoroughly examine various electrical parameters including the longitudinal electric field, electric potential, and surface charge density. The simulation outcomes on pyroCb thunderclouds with a tripole structure confirm the presence of negative longitudinal electric field initiation at the cloud’s lower region. This initiation is accompanied by enhancing the lower positive charge region, resulting in an overall positive electric potential increase. Consequently, negative surface charge density appears underneath the pyroCb thundercloud which has the potential to induce positive (+CG) lightning flashes. With wind shear extension of upper charge layers in pyroCb, the lightning initiation potential becomes negative to reduce the absolute field value and would generate negative (
- Authors: Barman, Surajit , Shah, Rakibuzzaman , Islam, Syed , Kumar, Apurv
- Date: 2024
- Type: Text , Journal article
- Relation: Applied Sciences (Switzerland) Vol. 14, no. 12 (2024), p.
- Full Text:
- Reviewed:
- Description: Pyrocumulonimbus (pyroCb) thunderclouds, produced from extreme bushfires, can initiate frequent cloud-to-ground (CG) lightning strikes containing extended continuing currents. This, in turn, can ignite new spot fires and inflict massive harm on the environment and infrastructures. This study presents a 3D numerical thundercloud model for estimating the lightning of different types and its striking zone for the conceptual tripole thundercloud structure which is theorized to produce the lightning phenomenon in pyroCb storms. More emphasis is given to the lower positive charge layer, and the impacts of strong wind shear are also explored to thoroughly examine various electrical parameters including the longitudinal electric field, electric potential, and surface charge density. The simulation outcomes on pyroCb thunderclouds with a tripole structure confirm the presence of negative longitudinal electric field initiation at the cloud’s lower region. This initiation is accompanied by enhancing the lower positive charge region, resulting in an overall positive electric potential increase. Consequently, negative surface charge density appears underneath the pyroCb thundercloud which has the potential to induce positive (+CG) lightning flashes. With wind shear extension of upper charge layers in pyroCb, the lightning initiation potential becomes negative to reduce the absolute field value and would generate negative (
A survey of commercial and industrial demand response flexibility with energy storage systems and renewable energy
- Yasmin, Roksana, Amin, B.M. Ruhul, Shah, Rakibuzzaman, Barton, Andrew
- Authors: Yasmin, Roksana , Amin, B.M. Ruhul , Shah, Rakibuzzaman , Barton, Andrew
- Date: 2024
- Type: Text , Journal article , Review
- Relation: Sustainability (Switzerland) Vol. 16, no. 2 (2024), p.
- Full Text:
- Reviewed:
- Description: The transition from traditional fuel-dependent energy systems to renewable energy-based systems has been extensively embraced worldwide. Demand-side flexibility is essential to support the power grid with carbon-free generation (e.g., solar, wind.) in an intermittent nature. As extensive energy consumers, commercial and industrial (C&I) consumers can play a key role by extending their flexibility and participating in demand response. Onsite renewable generation by consumers can reduce the consumption from the grid, while energy storage systems (ESSs) can support variable generation and shift demand by storing energy for later use. Both technologies can increase the flexibility and benefit by integrating with the demand response. However, a lack of knowledge about the applicability of increasing flexibility hinders the active participation of C&I consumers in demand response programs. This survey paper provides an overview of demand response and energy storage systems in this context following a methodology of a step-by-step literature review covering the period from 2013 to 2023. The literature review focuses on the application of energy storage systems and onsite renewable generation integrated with demand response for C&I consumers and is presented with an extensive analysis. This survey also examines the demand response participation and potential of wastewater treatment plants. The extended research on the wastewater treatment plant identifies the potential opportunities of coupling biogas with PV, extracting the thermal energy and onsite hydrogen production. Finally, the survey analysis is summarised, followed by critical recommendations for future research. © 2024 by the authors.
- Authors: Yasmin, Roksana , Amin, B.M. Ruhul , Shah, Rakibuzzaman , Barton, Andrew
- Date: 2024
- Type: Text , Journal article , Review
- Relation: Sustainability (Switzerland) Vol. 16, no. 2 (2024), p.
- Full Text:
- Reviewed:
- Description: The transition from traditional fuel-dependent energy systems to renewable energy-based systems has been extensively embraced worldwide. Demand-side flexibility is essential to support the power grid with carbon-free generation (e.g., solar, wind.) in an intermittent nature. As extensive energy consumers, commercial and industrial (C&I) consumers can play a key role by extending their flexibility and participating in demand response. Onsite renewable generation by consumers can reduce the consumption from the grid, while energy storage systems (ESSs) can support variable generation and shift demand by storing energy for later use. Both technologies can increase the flexibility and benefit by integrating with the demand response. However, a lack of knowledge about the applicability of increasing flexibility hinders the active participation of C&I consumers in demand response programs. This survey paper provides an overview of demand response and energy storage systems in this context following a methodology of a step-by-step literature review covering the period from 2013 to 2023. The literature review focuses on the application of energy storage systems and onsite renewable generation integrated with demand response for C&I consumers and is presented with an extensive analysis. This survey also examines the demand response participation and potential of wastewater treatment plants. The extended research on the wastewater treatment plant identifies the potential opportunities of coupling biogas with PV, extracting the thermal energy and onsite hydrogen production. Finally, the survey analysis is summarised, followed by critical recommendations for future research. © 2024 by the authors.
Addressing cybersecurity challenges in times of crisis : extending the sociotechnical systems perspective
- Mahmood, Samreen, Chadhar, Mehmood, Firmin, Sally
- Authors: Mahmood, Samreen , Chadhar, Mehmood , Firmin, Sally
- Date: 2024
- Type: Text , Journal article
- Relation: Applied Sciences (Switzerland) Vol. 14, no. 24 (2024), p.
- Full Text:
- Reviewed:
- Description: Recent crises have significantly amplified cybersecurity challenges. Numerous studies have identified these challenges during major crises; however, empirical investigations using a sociotechnical systems (STS) theoretical perspective remain limited. Against this backdrop, this research study examines and categorizes cybersecurity challenges in the Higher Education and Research Sector (HERS) through the lens of STS theory. Utilizing a qualitative methodology, semi-structured interviews were conducted with cybersecurity experts and top managers. This study proposes an STS cybersecurity framework, classifying challenges into five subsystems: social, technical, political, economic, and environmental. This framework expands on previous literature by incorporating factors often overlooked, such as cybersecurity challenges arising from internal and external environmental conditions, legal and regulatory political factors, and national and global economic factors. This research provides valuable theoretical and practical insights applicable beyond the context of the recent crisis. © 2024 by the authors.
- Authors: Mahmood, Samreen , Chadhar, Mehmood , Firmin, Sally
- Date: 2024
- Type: Text , Journal article
- Relation: Applied Sciences (Switzerland) Vol. 14, no. 24 (2024), p.
- Full Text:
- Reviewed:
- Description: Recent crises have significantly amplified cybersecurity challenges. Numerous studies have identified these challenges during major crises; however, empirical investigations using a sociotechnical systems (STS) theoretical perspective remain limited. Against this backdrop, this research study examines and categorizes cybersecurity challenges in the Higher Education and Research Sector (HERS) through the lens of STS theory. Utilizing a qualitative methodology, semi-structured interviews were conducted with cybersecurity experts and top managers. This study proposes an STS cybersecurity framework, classifying challenges into five subsystems: social, technical, political, economic, and environmental. This framework expands on previous literature by incorporating factors often overlooked, such as cybersecurity challenges arising from internal and external environmental conditions, legal and regulatory political factors, and national and global economic factors. This research provides valuable theoretical and practical insights applicable beyond the context of the recent crisis. © 2024 by the authors.
Advancing sustainable construction materials : wood, rubber, and cenospheres geopolymer masonry units development
- Gigar, Firesenay, Khennane, Amar, Liow, Jong-Leng, Al-Deen, Safat, Tekle, Biruk, Fitzgerald, Cooper, Basaglia, Anthony, Webster, Charles
- Authors: Gigar, Firesenay , Khennane, Amar , Liow, Jong-Leng , Al-Deen, Safat , Tekle, Biruk , Fitzgerald, Cooper , Basaglia, Anthony , Webster, Charles
- Date: 2024
- Type: Text , Journal article
- Relation: Sustainability (Switzerland) Vol. 16, no. 8 (2024), p.
- Full Text:
- Reviewed:
- Description: As the environmental impact of modern society continues to escalate, the construction industry actively pursues environmentally friendly materials to revolutionize its practices. Recycling, especially repurposing end-of-service materials and industrial wastes, emerges as a pivotal strategy offering a promising path towards sustainable construction. This study focuses on the innovative reuse of end-of-service wood, crumb rubber, and cenosphere with geopolymer binder to produce sustainable alternatives to masonry units. The study was conducted in two stages. In the first stage, cube samples were produced and tested to establish an optimal mix design. Results indicated that as the relative volume of waste increased, the compressive strength decreased. The compressive strength of the wood geopolymer composite decreased from 25 MPa to 4 MPa as the wood-to-binder ratio increased from 0.1 to 0.5. An increasing trend was observed for density with the increase of the rubber-to-wood ratio. The compressive strength also increased with the increase of the rubber-to-wood ratio for most of the investigated ranges. As fly ash is gradually replaced by cenospheres, a significant decrease in compressive strength was noted, about 70% and 80% for wood-to-binder (ratios of 0.2 and 0.3, respectively). In the second stage, three distinct types of masonry units were produced and tested based on the optimized mix design. The compressive strength results indicated promising performance, with wood-geopolymer masonry units exhibiting a strength of 8.39 MPa, wood-rubber-geopolymer masonry units achieving 8.32 MPa, and wood-cenosphere-geopolymer masonry units resulting in 7.33 MPa. While these values fell below the target 10 MPa, it is noteworthy that wood-geopolymer masonry units and wood-rubber-geopolymer masonry units met the minimum compressive strength requirements of some standards and demonstrated significantly better ductility compared to traditional masonry units. The results showcase significant promise in the viability and performance of these innovative masonry units. © 2024 by the authors.
- Authors: Gigar, Firesenay , Khennane, Amar , Liow, Jong-Leng , Al-Deen, Safat , Tekle, Biruk , Fitzgerald, Cooper , Basaglia, Anthony , Webster, Charles
- Date: 2024
- Type: Text , Journal article
- Relation: Sustainability (Switzerland) Vol. 16, no. 8 (2024), p.
- Full Text:
- Reviewed:
- Description: As the environmental impact of modern society continues to escalate, the construction industry actively pursues environmentally friendly materials to revolutionize its practices. Recycling, especially repurposing end-of-service materials and industrial wastes, emerges as a pivotal strategy offering a promising path towards sustainable construction. This study focuses on the innovative reuse of end-of-service wood, crumb rubber, and cenosphere with geopolymer binder to produce sustainable alternatives to masonry units. The study was conducted in two stages. In the first stage, cube samples were produced and tested to establish an optimal mix design. Results indicated that as the relative volume of waste increased, the compressive strength decreased. The compressive strength of the wood geopolymer composite decreased from 25 MPa to 4 MPa as the wood-to-binder ratio increased from 0.1 to 0.5. An increasing trend was observed for density with the increase of the rubber-to-wood ratio. The compressive strength also increased with the increase of the rubber-to-wood ratio for most of the investigated ranges. As fly ash is gradually replaced by cenospheres, a significant decrease in compressive strength was noted, about 70% and 80% for wood-to-binder (ratios of 0.2 and 0.3, respectively). In the second stage, three distinct types of masonry units were produced and tested based on the optimized mix design. The compressive strength results indicated promising performance, with wood-geopolymer masonry units exhibiting a strength of 8.39 MPa, wood-rubber-geopolymer masonry units achieving 8.32 MPa, and wood-cenosphere-geopolymer masonry units resulting in 7.33 MPa. While these values fell below the target 10 MPa, it is noteworthy that wood-geopolymer masonry units and wood-rubber-geopolymer masonry units met the minimum compressive strength requirements of some standards and demonstrated significantly better ductility compared to traditional masonry units. The results showcase significant promise in the viability and performance of these innovative masonry units. © 2024 by the authors.
Applying landscape-level principles to koala management in Australia : a comparative analysis
- Schlagloth, Rolf, Morgan, Edward, Cadman, Timothy, Santamaria, Flavia, McGinnis, Gabrielle, Thomson, Hedley, Kerlin, Douglas, Maraseni, Tek, Cahir, David (Fred), Clark, Ian, Clode, Danielle, McEwan, Alexandra
- Authors: Schlagloth, Rolf , Morgan, Edward , Cadman, Timothy , Santamaria, Flavia , McGinnis, Gabrielle , Thomson, Hedley , Kerlin, Douglas , Maraseni, Tek , Cahir, David (Fred) , Clark, Ian , Clode, Danielle , McEwan, Alexandra
- Date: 2024
- Type: Text , Journal article
- Relation: Journal of Environmental Planning and Management Vol. 67, no. 3 (2024), p. 542-563
- Full Text: false
- Reviewed:
- Description: We provide a comparative analysis of two koala management plans for populations in two Australian municipalities, based on principles of landscape management: Ballarat (Victoria) and Bellingen (New South Wales). A landscape-based approach is required to protect the species, but evaluation of landscape management is limited. We present an assessment framework for evaluating local koala management plans. The plans are evaluated against a common set of principles and criteria, despite very different approaches stemming from context-specific factors. Interestingly, despite a variation in the number of indicators in the plans, the overall results of the evaluation demonstrate a similar level of performance against the criteria, and common strengths and weaknesses. In the absence of consistent standards for the protection of the koala across Australia, the species will continue to decline, and management practices will fail to protect the koala from extinction, as is currently predicted. © 2022 Newcastle University.
Biochar amendment in green roof substrate : a comprehensive review of the benefits, performance, and challenges
- Nguyen, Cuong, Chau, Hing-Wah, Kumar, Apurv, Chakraborty, Ayon, Muttil, Nitin
- Authors: Nguyen, Cuong , Chau, Hing-Wah , Kumar, Apurv , Chakraborty, Ayon , Muttil, Nitin
- Date: 2024
- Type: Text , Journal article , Review
- Relation: Applied Sciences (Switzerland) Vol. 14, no. 16 (2024), p.
- Full Text:
- Reviewed:
- Description: Featured Application: Biochar, a carbon-rich material derived from organic matter through pyrolysis, enhances substrate quality by increasing water retention and nutrient availability, leading to healthier plant growth and increased biodiversity. It also plays a significant role in carbon sequestration, capturing and storing carbon that would otherwise be released into the atmosphere, thus contributing to climate change mitigation efforts. Green roofs (GRs) are a well-established green infrastructure (GI) strategy that have been extensively studied for decades to address a growing array of social and environmental challenges. Research efforts have been continuously made to contribute to the awareness of benefits of GRs and towards their widespread application. The substrate, which is one of the crucial layers of a GR system, plays a major role in the serviceability of GRs. Thus, several studies have been undertaken to alter the substrate characteristics by applying innovative substrate additives. Biochar, a carbon-rich material with a highly porous structure and large specific surface area, has been found advantageous in several areas such as agriculture, water filtration, environmental remediation, construction, and so on. However, the application of biochar in GRs has been insufficiently studied, partially because biochar amendment in GRs is a relatively recent innovation. Furthermore, a comprehensive review of the performance of biochar-amended GR substrates is lacking. This review paper aims to summarize the past performance of GRs enhanced with biochar by considering the various benefits that biochar offers. The results indicate that most of the reviewed studies observed increased retention of runoff and nutrients when utilizing biochar. Additionally, the capabilities of biochar in improving thermal insulation, plant performance, and microbial diversity, as well as its effectiveness in sequestrating carbon and controlling soil erosion, were mostly agreed upon. Notwithstanding, a definitive conclusion cannot yet be confidently made due to the limited research information from biochar–GR systems and the uneven research focus observed in the studies reviewed. The influence of biochar-related variables (including amendment rates, application methods, processed forms, and particle size) on the effectiveness of biochar was also discussed. Opportunities for future research were suggested to fill the research gaps and address challenges restricting the application of biochar in GRs. Detailed information from past research findings could serve as a foundation for further investigations into the large-scale implementation of biochar in GRs. © 2024 by the authors.
- Authors: Nguyen, Cuong , Chau, Hing-Wah , Kumar, Apurv , Chakraborty, Ayon , Muttil, Nitin
- Date: 2024
- Type: Text , Journal article , Review
- Relation: Applied Sciences (Switzerland) Vol. 14, no. 16 (2024), p.
- Full Text:
- Reviewed:
- Description: Featured Application: Biochar, a carbon-rich material derived from organic matter through pyrolysis, enhances substrate quality by increasing water retention and nutrient availability, leading to healthier plant growth and increased biodiversity. It also plays a significant role in carbon sequestration, capturing and storing carbon that would otherwise be released into the atmosphere, thus contributing to climate change mitigation efforts. Green roofs (GRs) are a well-established green infrastructure (GI) strategy that have been extensively studied for decades to address a growing array of social and environmental challenges. Research efforts have been continuously made to contribute to the awareness of benefits of GRs and towards their widespread application. The substrate, which is one of the crucial layers of a GR system, plays a major role in the serviceability of GRs. Thus, several studies have been undertaken to alter the substrate characteristics by applying innovative substrate additives. Biochar, a carbon-rich material with a highly porous structure and large specific surface area, has been found advantageous in several areas such as agriculture, water filtration, environmental remediation, construction, and so on. However, the application of biochar in GRs has been insufficiently studied, partially because biochar amendment in GRs is a relatively recent innovation. Furthermore, a comprehensive review of the performance of biochar-amended GR substrates is lacking. This review paper aims to summarize the past performance of GRs enhanced with biochar by considering the various benefits that biochar offers. The results indicate that most of the reviewed studies observed increased retention of runoff and nutrients when utilizing biochar. Additionally, the capabilities of biochar in improving thermal insulation, plant performance, and microbial diversity, as well as its effectiveness in sequestrating carbon and controlling soil erosion, were mostly agreed upon. Notwithstanding, a definitive conclusion cannot yet be confidently made due to the limited research information from biochar–GR systems and the uneven research focus observed in the studies reviewed. The influence of biochar-related variables (including amendment rates, application methods, processed forms, and particle size) on the effectiveness of biochar was also discussed. Opportunities for future research were suggested to fill the research gaps and address challenges restricting the application of biochar in GRs. Detailed information from past research findings could serve as a foundation for further investigations into the large-scale implementation of biochar in GRs. © 2024 by the authors.
Bioconcentration of pharmaceuticals by aquatic flora in an Australian river system
- Harriage, Samantha, Harasheh, Ahmad, Schultz, Nick, Long, Benjamin
- Authors: Harriage, Samantha , Harasheh, Ahmad , Schultz, Nick , Long, Benjamin
- Date: 2024
- Type: Text , Journal article
- Relation: Science of the Total Environment Vol. 946, no. (2024), p.
- Full Text:
- Reviewed:
- Description: Pharmaceuticals are emerging contaminants in the environment and are a ubiquitous presence in rivers downstream of wastewater treatment plant outfalls. Questions remain about the persistence of pharmaceuticals in rivers, and the uptake and bioconcentration of pharmaceuticals by aquatic plants. Our study took place in the Yarrowee/Leigh/Barwon River system in southeastern Australia. We quantified the concentrations of five pharmaceuticals (carbamazepine, primidone, propranolol, tramadol, and venlafaxine) in surface water at five sites along a 144-km stretch of river, downstream of the presumed primary point source (a wastewater treatment plant outfall). We quantified pharmaceuticals in the leaves of two aquatic plant species (Phragmites australis and Vallisneria australis) sampled at each site, and calculated bioconcentration factors. All five pharmaceuticals were detected in surface waters, and the highest detected concentration exceeded 500 ng.L
- Authors: Harriage, Samantha , Harasheh, Ahmad , Schultz, Nick , Long, Benjamin
- Date: 2024
- Type: Text , Journal article
- Relation: Science of the Total Environment Vol. 946, no. (2024), p.
- Full Text:
- Reviewed:
- Description: Pharmaceuticals are emerging contaminants in the environment and are a ubiquitous presence in rivers downstream of wastewater treatment plant outfalls. Questions remain about the persistence of pharmaceuticals in rivers, and the uptake and bioconcentration of pharmaceuticals by aquatic plants. Our study took place in the Yarrowee/Leigh/Barwon River system in southeastern Australia. We quantified the concentrations of five pharmaceuticals (carbamazepine, primidone, propranolol, tramadol, and venlafaxine) in surface water at five sites along a 144-km stretch of river, downstream of the presumed primary point source (a wastewater treatment plant outfall). We quantified pharmaceuticals in the leaves of two aquatic plant species (Phragmites australis and Vallisneria australis) sampled at each site, and calculated bioconcentration factors. All five pharmaceuticals were detected in surface waters, and the highest detected concentration exceeded 500 ng.L
Biology, ecology, impacts and management of the invasive weed, blue heliotrope (heliotropium amplexicaule vahl)—a review
- Roberts, Jason, Peerzada, Arslan, Bajwa, Ali
- Authors: Roberts, Jason , Peerzada, Arslan , Bajwa, Ali
- Date: 2024
- Type: Text , Journal article , Review
- Relation: Sustainability Vol. 16, no. 14 (2024), p.
- Full Text:
- Reviewed:
- Description: Blue heliotrope (Heliotropium amplexicaule Vahl) is an extremely drought-hardy perennial weed that is often problematic within agricultural production systems and natural environments in some parts of the world. It has the capacity to outcompete and displace desirable plant species and it contains various biochemical compounds that are toxic to grazing livestock and humans. Heliotropium amplexicaule plants can grow within a range of climatic and environmental conditions and produce seeds that remain dormant for several years within the soil which exhibit staggered emergence long after the original parent plants have expired. While control options, including biological, chemical, cultural, and physical methods, are available, many are not suitable as a single-use approach for the long-term management of this species. Therefore, an integrated weed management (IWM) program is necessary for the confident and long-term management of H. amplexicaule, particularly within dryland ecosystems. This review explores the biology, ecology, distribution, and suitable management options currently available for H. amplexicaule, while identifying research gaps that can be addressed to assist in its future management. While particular emphasis is placed on the Australian experience, information from a global perspective is included, providing valuable insights for the long-term management of H. amplexicaule worldwide. © 2024 by the authors.
- Authors: Roberts, Jason , Peerzada, Arslan , Bajwa, Ali
- Date: 2024
- Type: Text , Journal article , Review
- Relation: Sustainability Vol. 16, no. 14 (2024), p.
- Full Text:
- Reviewed:
- Description: Blue heliotrope (Heliotropium amplexicaule Vahl) is an extremely drought-hardy perennial weed that is often problematic within agricultural production systems and natural environments in some parts of the world. It has the capacity to outcompete and displace desirable plant species and it contains various biochemical compounds that are toxic to grazing livestock and humans. Heliotropium amplexicaule plants can grow within a range of climatic and environmental conditions and produce seeds that remain dormant for several years within the soil which exhibit staggered emergence long after the original parent plants have expired. While control options, including biological, chemical, cultural, and physical methods, are available, many are not suitable as a single-use approach for the long-term management of this species. Therefore, an integrated weed management (IWM) program is necessary for the confident and long-term management of H. amplexicaule, particularly within dryland ecosystems. This review explores the biology, ecology, distribution, and suitable management options currently available for H. amplexicaule, while identifying research gaps that can be addressed to assist in its future management. While particular emphasis is placed on the Australian experience, information from a global perspective is included, providing valuable insights for the long-term management of H. amplexicaule worldwide. © 2024 by the authors.
CEREI : an open-source tool for cost-effective renewable energy investments
- Ibrahim, Ibrahim, Choudhury, Tanveer, Sargeant, James, Shah, Rakibuzzaman, Hossain, Md Jahangir, Islam, Syed
- Authors: Ibrahim, Ibrahim , Choudhury, Tanveer , Sargeant, James , Shah, Rakibuzzaman , Hossain, Md Jahangir , Islam, Syed
- Date: 2024
- Type: Text , Journal article
- Relation: SoftwareX Vol. 26, no. (2024), p.
- Full Text:
- Reviewed:
- Description: This paper presents the development of a tool that aims to help stakeholders make informed decisions to invest in renewable energy and understand the impact of different tariffs on the economic viability of renewable energy investments. This includes evaluating the costs and benefits, and assessing the impacts of different tariff structures on the economic feasibility of those options. Furthermore, the tool can help in identifying the potential risks and challenges associated with renewable energy integration projects, such as market and network charges fluctuations. Therefore, this tool provides various evaluations to inform users about their energy consumption in relation to sport market energy prices, network tariffs, and retailer charges. It enables the assessment of a site's economic operation over specific timeframes, calculates potential energy savings from on-site renewable sources, and determines economic indicators based on life-cycle cost analysis. The tool has been designed and validated with data from the Australian energy market, focusing on investment decisions for renewable energy projects in Victoria state. It adheres to the Australian Energy Market Regulations and incorporates feed-in tariff rates particular to the Victorian energy market and its regulatory framework. © 2024 The Author(s)
- Authors: Ibrahim, Ibrahim , Choudhury, Tanveer , Sargeant, James , Shah, Rakibuzzaman , Hossain, Md Jahangir , Islam, Syed
- Date: 2024
- Type: Text , Journal article
- Relation: SoftwareX Vol. 26, no. (2024), p.
- Full Text:
- Reviewed:
- Description: This paper presents the development of a tool that aims to help stakeholders make informed decisions to invest in renewable energy and understand the impact of different tariffs on the economic viability of renewable energy investments. This includes evaluating the costs and benefits, and assessing the impacts of different tariff structures on the economic feasibility of those options. Furthermore, the tool can help in identifying the potential risks and challenges associated with renewable energy integration projects, such as market and network charges fluctuations. Therefore, this tool provides various evaluations to inform users about their energy consumption in relation to sport market energy prices, network tariffs, and retailer charges. It enables the assessment of a site's economic operation over specific timeframes, calculates potential energy savings from on-site renewable sources, and determines economic indicators based on life-cycle cost analysis. The tool has been designed and validated with data from the Australian energy market, focusing on investment decisions for renewable energy projects in Victoria state. It adheres to the Australian Energy Market Regulations and incorporates feed-in tariff rates particular to the Victorian energy market and its regulatory framework. © 2024 The Author(s)
- Liu, Zhaogang, Zhao, Ming, Tennakoon, Kushan, Liu, Congcong
- Authors: Liu, Zhaogang , Zhao, Ming , Tennakoon, Kushan , Liu, Congcong
- Date: 2024
- Type: Text , Journal article
- Relation: Science of the Total Environment Vol. 949, no. (2024), p.
- Full Text: false
- Reviewed:
- Description: The stomatal index (SI, %) and its response to climate factors (temperature and precipitation) can help our understanding of terrestrial carbon and water cycling and plant adaptation in the ecosystem, however, consensus has not yet been reached in this regard. In this study, we compiled an extensive dataset from the Chinese flora to investigate the response of SI to environmental change, including 891 herbaceous and woody species from 188 published papers. The results showed that mean values of the adaxial SI and abaxial SI for all species were 14.06 and 19.22, respectively, and the ratio of adaxial to abaxial SI was 0.84. For the adaxial SI, abaxial SI, and the ratio of adaxial to abaxial SI, the range of these values varied between 0.05–43.67, 0.01–48.17, and 0.03–4.31, respectively. Compared with woody plants, herbaceous plants showed higher values in both adaxial and abaxial SI. In terms of the impact of climate factors, the abaxial SI of herbaceous plants changed slower than the adaxial SI, while woody plants showed the opposite trend. Threshold effects of increased temperature and precipitation on SI were observed, indicating that SI responded differently to changes in climate factors at different levels. Climate factors play a crucial role in driving the adaxial SI than abaxial SI. Our findings highlight the significant challenges posed by divergent responses of SI in forecasting future water and carbon cycles associated with climatic and environmental change. © 2024 Elsevier B.V.
Decreasing global tropical cyclone frequency in CMIP6 historical simulations
- Zhao, Haikun, Zhao, Kai, Klotzbach, Philip, Chand, Savin, Camargo, Suzana, Cao, Jian, Wu, Liguang
- Authors: Zhao, Haikun , Zhao, Kai , Klotzbach, Philip , Chand, Savin , Camargo, Suzana , Cao, Jian , Wu, Liguang
- Date: 2024
- Type: Text , Journal article
- Relation: Science Advances Vol. 10, no. 27 (2024), p.
- Full Text:
- Reviewed:
- Description: The impact of anthropogenic global warming on tropical cyclone (TC) frequency remains a challenging issue, partly due to a relatively short period of reliable observational TC records and inconsistencies in climate model simulations. Using TC detection from 20 CMIP6 historical simulations, we show that the majority (75%) of these models show a decrease in global-scale TC frequency from 1850 to 2014. We demonstrated that this result is largely explained by weakened mid-tropospheric upward motion in CMIP6 models over the Pacific and Atlantic main development regions. The reduced upward motion is due to a zonal circulation adjustment and shifts in Intertropical Convergence Zone in response to global warming. In the South Indian Ocean, reduced TC frequency is mainly due to the decreased survival rate of TC seeds because of an increased saturation deficit in a warming climate. Our analysis highlights global warming's potential impact on the historical decrease in global TC frequency. © 2024 The Authors.
- Authors: Zhao, Haikun , Zhao, Kai , Klotzbach, Philip , Chand, Savin , Camargo, Suzana , Cao, Jian , Wu, Liguang
- Date: 2024
- Type: Text , Journal article
- Relation: Science Advances Vol. 10, no. 27 (2024), p.
- Full Text:
- Reviewed:
- Description: The impact of anthropogenic global warming on tropical cyclone (TC) frequency remains a challenging issue, partly due to a relatively short period of reliable observational TC records and inconsistencies in climate model simulations. Using TC detection from 20 CMIP6 historical simulations, we show that the majority (75%) of these models show a decrease in global-scale TC frequency from 1850 to 2014. We demonstrated that this result is largely explained by weakened mid-tropospheric upward motion in CMIP6 models over the Pacific and Atlantic main development regions. The reduced upward motion is due to a zonal circulation adjustment and shifts in Intertropical Convergence Zone in response to global warming. In the South Indian Ocean, reduced TC frequency is mainly due to the decreased survival rate of TC seeds because of an increased saturation deficit in a warming climate. Our analysis highlights global warming's potential impact on the historical decrease in global TC frequency. © 2024 The Authors.
Description and assessment of a new high resolution erosion model for constructed landforms
- Yavari, Shahla, McIntyre, Neil, Shao, Qi, Baumgartl, Thomas
- Authors: Yavari, Shahla , McIntyre, Neil , Shao, Qi , Baumgartl, Thomas
- Date: 2024
- Type: Text , Journal article
- Relation: Environmental Modelling and Software Vol. 172, no. (2024), p.
- Full Text:
- Reviewed:
- Description: Literature review reveals that many erosion models have limitations for application to constructed landforms. The new EroCA model aims to address this gap. The model uses established erosion and sediment transport models applied to multiple particle size classes at fine spatial and temporal resolutions, covering both suspended load and bedload. Using data from an experimental plot in Northern Australia, global sensitivity analysis was used to investigate the sources of uncertainty, limitations of the model, and priorities for data collection. Further analysis explored sensitivity to model grid size. The results showed that the Manning roughness, erodibility parameters and particle size are the most important parameters. Results also showed low parameter identifiability and hence the difficulty of calibration, even when using high quality experimental data. EroCA has the capacity to be a powerful landform modelling tool at appropriate scales of application; however ideally its data needs would be considered during monitoring design. © 2023 The Authors
- Authors: Yavari, Shahla , McIntyre, Neil , Shao, Qi , Baumgartl, Thomas
- Date: 2024
- Type: Text , Journal article
- Relation: Environmental Modelling and Software Vol. 172, no. (2024), p.
- Full Text:
- Reviewed:
- Description: Literature review reveals that many erosion models have limitations for application to constructed landforms. The new EroCA model aims to address this gap. The model uses established erosion and sediment transport models applied to multiple particle size classes at fine spatial and temporal resolutions, covering both suspended load and bedload. Using data from an experimental plot in Northern Australia, global sensitivity analysis was used to investigate the sources of uncertainty, limitations of the model, and priorities for data collection. Further analysis explored sensitivity to model grid size. The results showed that the Manning roughness, erodibility parameters and particle size are the most important parameters. Results also showed low parameter identifiability and hence the difficulty of calibration, even when using high quality experimental data. EroCA has the capacity to be a powerful landform modelling tool at appropriate scales of application; however ideally its data needs would be considered during monitoring design. © 2023 The Authors
Differences in anxiety, insomnia, and trauma symptoms in wildfire survivors from australia, canada, and the United States of America
- Isaac, Fadia, Toukhsati, Samia, Klein, Britt, Di Benedetto, Mirella, Kennedy, Gerard
- Authors: Isaac, Fadia , Toukhsati, Samia , Klein, Britt , Di Benedetto, Mirella , Kennedy, Gerard
- Date: 2024
- Type: Text , Journal article
- Relation: International Journal of Environmental Research and Public Health Vol. 21, no. 1 (2024), p.
- Full Text:
- Reviewed:
- Description: Many survivors of wildfires report elevated levels of psychological distress following the trauma of wildfires. However, there is only limited research on the effects of wildfires on mental health. This study examined differences in anxiety, depression, insomnia, sleep quality, nightmares, and post-traumatic stress disorder (PTSD) symptoms following wildfires in Australia, Canada, and the United States of America (USA). One hundred and twenty-six participants from Australia, Canada, and the USA completed an online survey. The sample included 102 (81%) women, 23 (18.3%) men, and one non-binary (0.8%) individual. Participants were aged between 20 and 92 years (M age = 52 years, SD = 14.4). They completed a demographic questionnaire, the Disturbing Dream and Nightmare Severity Index (DDNSI), Generalized Anxiety Disorder Questionnaire (GAD-7), the Insomnia Severity Index (ISI), Patient Health Questionnaire (PHQ-9), the Pittsburgh Sleep Quality Index (PSQI), and PTSD Checklist (PCL-5). Results showed that participants from the USA scored significantly higher on the GAD-7 (p = 0.009), ISI (p = 0.003), and PCL-5 (p = 0.021) than participants from Australia and Canada. The current findings suggest a need for more international collaboration to reduce the severity of mental health conditions in Australia, Canada, and the USA. © 2023 by the authors.
- Authors: Isaac, Fadia , Toukhsati, Samia , Klein, Britt , Di Benedetto, Mirella , Kennedy, Gerard
- Date: 2024
- Type: Text , Journal article
- Relation: International Journal of Environmental Research and Public Health Vol. 21, no. 1 (2024), p.
- Full Text:
- Reviewed:
- Description: Many survivors of wildfires report elevated levels of psychological distress following the trauma of wildfires. However, there is only limited research on the effects of wildfires on mental health. This study examined differences in anxiety, depression, insomnia, sleep quality, nightmares, and post-traumatic stress disorder (PTSD) symptoms following wildfires in Australia, Canada, and the United States of America (USA). One hundred and twenty-six participants from Australia, Canada, and the USA completed an online survey. The sample included 102 (81%) women, 23 (18.3%) men, and one non-binary (0.8%) individual. Participants were aged between 20 and 92 years (M age = 52 years, SD = 14.4). They completed a demographic questionnaire, the Disturbing Dream and Nightmare Severity Index (DDNSI), Generalized Anxiety Disorder Questionnaire (GAD-7), the Insomnia Severity Index (ISI), Patient Health Questionnaire (PHQ-9), the Pittsburgh Sleep Quality Index (PSQI), and PTSD Checklist (PCL-5). Results showed that participants from the USA scored significantly higher on the GAD-7 (p = 0.009), ISI (p = 0.003), and PCL-5 (p = 0.021) than participants from Australia and Canada. The current findings suggest a need for more international collaboration to reduce the severity of mental health conditions in Australia, Canada, and the USA. © 2023 by the authors.
- Atazadeh, Ehsan, Gell, Peter, Mills, Keely, Barton, Andrew, Newall, Peter
- Authors: Atazadeh, Ehsan , Gell, Peter , Mills, Keely , Barton, Andrew , Newall, Peter
- Date: 2024
- Type: Text , Journal article
- Relation: Environmental Science and Pollution Research Vol. 31, no. 5 (2024), p. 7408-7427
- Full Text: false
- Reviewed:
- Description: Ecological and statistical models were developed using freshwater algal assemblages to assess water quality and ecological health of a regulated river. These models were used to inform configuration of flows to maintain or improve environmental conditions of the waterway whilst meeting consumptive water supply commitments. The flow regime of the MacKenzie River, western Victoria, Australia, has been substantially modified since the construction of a water supply reservoir on its upper reach in 1887. Water is withdrawn at several locations downstream of the reservoir, creating a substantially modified flow regime, impacting key environmental values of the river. To assess the impact of the different flow regimes on river health and ecosystem function, ten sites were repeatedly sampled along the river between February 2012 and April 2014. Physical and chemical characteristics of water, including pH, temperature, turbidity, electrical conductivity, dissolved oxygen, total nitrogen, total phosphorous, cations, and anions, were measured. Biological properties of the algal periphyton communities, including dry mass, ash-free dry mass, chlorophyll-a concentration, and species composition, were also measured. Exploration of the algal assemblage and water chemistry data using the computationally unconstrained ordination technique such as principal component analysis principal component analysis (PCA), correspondence analysis (CA), detrended correspondence analysis (DCA), and canonical correspondence analysis (CCA) indicated two strong gradients in the data sets. Furthermore, the quantitative ecosystem response models have been developed as the prototype tool to assist in the future configuration of flows in this river. The empirical data and models showed the lower reaches of the river to be in poor condition under low flows, but this condition improved under flows of 35 ML/day, as indicated by the reduction in green algae and cyanobacteria and improvement. Finally, the results are presented to tailor discharge and duration of water volume by amalgamation of consumptive and environmental flows to improve the condition of the stream thereby supplementing the flows dedicated to environmental outcomes. © 2023, The Author(s), under exclusive licence to Springer-Verlag GmbH Germany, part of Springer Nature.
Examination of social worlds of risky drinking. Insights from Twitter data analysis
- Ahmed, Ashir, Martin, Jennifer, Towl, David, Haussegger, Zac, Babar, Muhammad
- Authors: Ahmed, Ashir , Martin, Jennifer , Towl, David , Haussegger, Zac , Babar, Muhammad
- Date: 2024
- Type: Text , Journal article
- Relation: PLoS ONE Vol. 19, no. 2 (2024), p.
- Full Text:
- Reviewed:
- Description: Rich nature of social media data offers a great opportunity to examine social worlds of its users. Further to wide range of topics being discussed on social media, alcohol-related content is prevalent on social media and studies have found an association between this content and increased consumption of alcohol, cravings for alcohol and addiction. This study analyses social media data to examine social worlds of risky drinking in Victoria, Australia. This study conducted a scoping literature review and two online surveys, one with the general community and the other with health professionals, to determine key words to search for on social media sites. These keywords were used in a social media analytics tool called Talkwalker to generate quantitative and qualitative data on the social media users and their conversations. NVIVO was used for developing categories and themes in a sample of 172 posts. A total of 1,021 results were obtained from Twitter. The main demographic group found to be involved in conversations about drinking alcohol on Twitter was young fathers aged 25–34 years. The culture of alcohol consumption in Victoria for Twitter users is reflective of Australia’s drinking culture within which risky drinking, and in particular binge drinking, is normalised. © 2024 Ahmed et al. This is an open access article distributed under the terms of the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited.
- Authors: Ahmed, Ashir , Martin, Jennifer , Towl, David , Haussegger, Zac , Babar, Muhammad
- Date: 2024
- Type: Text , Journal article
- Relation: PLoS ONE Vol. 19, no. 2 (2024), p.
- Full Text:
- Reviewed:
- Description: Rich nature of social media data offers a great opportunity to examine social worlds of its users. Further to wide range of topics being discussed on social media, alcohol-related content is prevalent on social media and studies have found an association between this content and increased consumption of alcohol, cravings for alcohol and addiction. This study analyses social media data to examine social worlds of risky drinking in Victoria, Australia. This study conducted a scoping literature review and two online surveys, one with the general community and the other with health professionals, to determine key words to search for on social media sites. These keywords were used in a social media analytics tool called Talkwalker to generate quantitative and qualitative data on the social media users and their conversations. NVIVO was used for developing categories and themes in a sample of 172 posts. A total of 1,021 results were obtained from Twitter. The main demographic group found to be involved in conversations about drinking alcohol on Twitter was young fathers aged 25–34 years. The culture of alcohol consumption in Victoria for Twitter users is reflective of Australia’s drinking culture within which risky drinking, and in particular binge drinking, is normalised. © 2024 Ahmed et al. This is an open access article distributed under the terms of the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited.
Examining single session peer-teaching instructional approaches on pre-service physical education teachers’ throwing techniques
- Beseler, Bradley, Plumb, Mandy, Spittle, Michael, Johnson, Nicola, Harvey, Jack, Mesagno, Christopher
- Authors: Beseler, Bradley , Plumb, Mandy , Spittle, Michael , Johnson, Nicola , Harvey, Jack , Mesagno, Christopher
- Date: 2024
- Type: Text , Journal article , Review
- Relation: Perceptual and Motor Skills Vol. 131, no. 1 (2024), p. 246-266
- Full Text:
- Reviewed:
- Description: An important role of a Physical Education (PE) teacher is to assist students to develop the fundamental motor skills (FMS) that will allow them to participate in physical activities with competence and confidence. Thus, PE teachers require the knowledge and skills to carry out this crucial task. In the crowded curricula of Physical Education Teacher Education (PETE) programs, there are limited opportunities for pre-service PE teachers to learn how to analyze and perform a large list of motor skills. Our purposes in this study were to determine whether a single session peer-teaching intervention could improve pre-service PE teachers’ short-term non-dominant hand overarm throwing performances and to examine these students’ perceptions of the interventions. We allocated 47 pre-service PE teaching students (24 males; 23 females) to one of three experimental groups: a Video Analysis Group (VAG; n = 17), a Verbal Group (VG; n = 19), and a Control Group (CG; n = 11), based on the class in which they were enrolled. VAG and VG participants worked with a partner of their choice in reciprocal peer-teaching to improve each other’s non-dominant hand throwing technique. VAG and VG interventions were identical except that VAG participants accessed video analysis technology. CG participants completed unrelated course work that involved no overarm throwing activities. A single 20-minute session of peer teaching with video analysis feedback during practice led to rapid enhancements in non-dominant hand overarm throwing skills. While all three groups improved their performance by retention testing, participants in the VAG group improved most quickly. Participants in both the VAG and VG groups reported that their respective interventions improved their throwing and Qualitative Movement Diagnosis (QMD) skills. Based on these results, we suggest that PETE programs integrate peer-teaching and video analysis sessions into fundamental movement courses to accelerate students’ motor skill acquisitions. © The Author(s) 2023.
- Authors: Beseler, Bradley , Plumb, Mandy , Spittle, Michael , Johnson, Nicola , Harvey, Jack , Mesagno, Christopher
- Date: 2024
- Type: Text , Journal article , Review
- Relation: Perceptual and Motor Skills Vol. 131, no. 1 (2024), p. 246-266
- Full Text:
- Reviewed:
- Description: An important role of a Physical Education (PE) teacher is to assist students to develop the fundamental motor skills (FMS) that will allow them to participate in physical activities with competence and confidence. Thus, PE teachers require the knowledge and skills to carry out this crucial task. In the crowded curricula of Physical Education Teacher Education (PETE) programs, there are limited opportunities for pre-service PE teachers to learn how to analyze and perform a large list of motor skills. Our purposes in this study were to determine whether a single session peer-teaching intervention could improve pre-service PE teachers’ short-term non-dominant hand overarm throwing performances and to examine these students’ perceptions of the interventions. We allocated 47 pre-service PE teaching students (24 males; 23 females) to one of three experimental groups: a Video Analysis Group (VAG; n = 17), a Verbal Group (VG; n = 19), and a Control Group (CG; n = 11), based on the class in which they were enrolled. VAG and VG participants worked with a partner of their choice in reciprocal peer-teaching to improve each other’s non-dominant hand throwing technique. VAG and VG interventions were identical except that VAG participants accessed video analysis technology. CG participants completed unrelated course work that involved no overarm throwing activities. A single 20-minute session of peer teaching with video analysis feedback during practice led to rapid enhancements in non-dominant hand overarm throwing skills. While all three groups improved their performance by retention testing, participants in the VAG group improved most quickly. Participants in both the VAG and VG groups reported that their respective interventions improved their throwing and Qualitative Movement Diagnosis (QMD) skills. Based on these results, we suggest that PETE programs integrate peer-teaching and video analysis sessions into fundamental movement courses to accelerate students’ motor skill acquisitions. © The Author(s) 2023.
Exploring general practitioners’ knowledge, attitudes, and practices towards e-cigarette use/vaping in children and adolescents: a pilot cross-sectional study in Sydney
- Singh, Rajiv, Burke, Michael, Towns, Susan, Rahman, Muhammad Aziz, Bittoun, Renee, Shah, Smita, Liu, Anthony, Bhurawala, Habib
- Authors: Singh, Rajiv , Burke, Michael , Towns, Susan , Rahman, Muhammad Aziz , Bittoun, Renee , Shah, Smita , Liu, Anthony , Bhurawala, Habib
- Date: 2024
- Type: Text , Journal article
- Relation: International Journal of Environmental Research and Public Health Vol. 21, no. 9 (2024), p.
- Full Text:
- Reviewed:
- Description: (1) Background: The increasing use of e-cigarettes/vaping in children and adolescents has been recognised as a global health concern. We aim to explore the Knowledge, Attitude, and Practice of General Practitioners (GPs) in Sydney regarding the use of e-cigarettes in children and adolescents and identify the barriers to addressing this issue. (2) Methods: This pilot study was a cross-sectional study conducted using an electronic questionnaire with a Likert scale and free-text responses. (3) Results: Fifty-three GPs participated in the study (male = 24 and female = 29) with a mean age of 50 ± 5.5 years. There was strong agreement (mean 4.5) about respiratory adverse effects and addictive potential. However, there was less awareness of cardiac side effects and the occurrence of burns. There is a lack of conversation about e-cigarettes in GP practice and a deficit of confidence in GPs regarding managing e-cigarette use in children and adolescents. (4) Conclusions: Our pilot study has shown that GPs are somewhat knowledgeable about the potential adverse effects of the use of e-cigarettes in children and adolescents, though there is a lack of knowledge of the complete spectrum of adverse effects and more importantly, there is a paucity of a structured approach to discuss the use of e-cigarettes with children and adolescents, and there is a low level of confidence in addressing these issues. There is a need for educational interventions for GPs to increase awareness of the potential adverse effects of using e-cigarettes and build confidence in providing management to children and adolescents regarding the use of e-cigarettes. © 2024 by the authors.
- Authors: Singh, Rajiv , Burke, Michael , Towns, Susan , Rahman, Muhammad Aziz , Bittoun, Renee , Shah, Smita , Liu, Anthony , Bhurawala, Habib
- Date: 2024
- Type: Text , Journal article
- Relation: International Journal of Environmental Research and Public Health Vol. 21, no. 9 (2024), p.
- Full Text:
- Reviewed:
- Description: (1) Background: The increasing use of e-cigarettes/vaping in children and adolescents has been recognised as a global health concern. We aim to explore the Knowledge, Attitude, and Practice of General Practitioners (GPs) in Sydney regarding the use of e-cigarettes in children and adolescents and identify the barriers to addressing this issue. (2) Methods: This pilot study was a cross-sectional study conducted using an electronic questionnaire with a Likert scale and free-text responses. (3) Results: Fifty-three GPs participated in the study (male = 24 and female = 29) with a mean age of 50 ± 5.5 years. There was strong agreement (mean 4.5) about respiratory adverse effects and addictive potential. However, there was less awareness of cardiac side effects and the occurrence of burns. There is a lack of conversation about e-cigarettes in GP practice and a deficit of confidence in GPs regarding managing e-cigarette use in children and adolescents. (4) Conclusions: Our pilot study has shown that GPs are somewhat knowledgeable about the potential adverse effects of the use of e-cigarettes in children and adolescents, though there is a lack of knowledge of the complete spectrum of adverse effects and more importantly, there is a paucity of a structured approach to discuss the use of e-cigarettes with children and adolescents, and there is a low level of confidence in addressing these issues. There is a need for educational interventions for GPs to increase awareness of the potential adverse effects of using e-cigarettes and build confidence in providing management to children and adolescents regarding the use of e-cigarettes. © 2024 by the authors.
Identifying challenges and solutions for improving access to mental health services for rural youth : insights from adult community members
- Graves, Janessa, Abshire, Demetrius, Koontz, Elissa, Mackelprang, Jessica
- Authors: Graves, Janessa , Abshire, Demetrius , Koontz, Elissa , Mackelprang, Jessica
- Date: 2024
- Type: Text , Journal article
- Relation: International Journal of Environmental Research and Public Health Vol. 21, no. 6 (2024), p.
- Full Text:
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- Description: In the rural United States, provider shortages, inadequate insurance coverage, high poverty rates, limited transportation, privacy concerns, and stigma make accessing mental healthcare difficult. Innovative, localized strategies are needed to overcome these barriers, but little is known about what strategies may be feasible in, or acceptable to, rural communities. We aimed to identify barriers youth face in accessing mental healthcare in rural Washington State and to generate ideas to improve access. Methods: Semi-structured, key informant interviews were conducted by telephone with adult community members, including parents, teachers, and healthcare providers. Participants answered questions related to barriers to mental healthcare access that confront youth and approaches to improving access. Detailed, de-identified field notes were analyzed using conventional content analysis. Results: Limited resources and stigma were the two primary barriers to accessing mental healthcare that youth encounter in the community. Limited resources included lack of services and transportation, inconsistent funding and mental health programming, and workforce shortages. Stigma associated with seeking mental healthcare was of particular concern for youth with diverse identities who experience additional stigma. Conclusions: Improving access to mental healthcare for rural youth will require building a strong mental health workforce and championing efforts to reduce stigma associated with help-seeking. © 2024 by the authors.
- Authors: Graves, Janessa , Abshire, Demetrius , Koontz, Elissa , Mackelprang, Jessica
- Date: 2024
- Type: Text , Journal article
- Relation: International Journal of Environmental Research and Public Health Vol. 21, no. 6 (2024), p.
- Full Text:
- Reviewed:
- Description: In the rural United States, provider shortages, inadequate insurance coverage, high poverty rates, limited transportation, privacy concerns, and stigma make accessing mental healthcare difficult. Innovative, localized strategies are needed to overcome these barriers, but little is known about what strategies may be feasible in, or acceptable to, rural communities. We aimed to identify barriers youth face in accessing mental healthcare in rural Washington State and to generate ideas to improve access. Methods: Semi-structured, key informant interviews were conducted by telephone with adult community members, including parents, teachers, and healthcare providers. Participants answered questions related to barriers to mental healthcare access that confront youth and approaches to improving access. Detailed, de-identified field notes were analyzed using conventional content analysis. Results: Limited resources and stigma were the two primary barriers to accessing mental healthcare that youth encounter in the community. Limited resources included lack of services and transportation, inconsistent funding and mental health programming, and workforce shortages. Stigma associated with seeking mental healthcare was of particular concern for youth with diverse identities who experience additional stigma. Conclusions: Improving access to mental healthcare for rural youth will require building a strong mental health workforce and championing efforts to reduce stigma associated with help-seeking. © 2024 by the authors.
It’s so ridiculously soulless: geolocative media, place and third wave gentrification
- Walters, Peter, Smith, Naomi
- Authors: Walters, Peter , Smith, Naomi
- Date: 2024
- Type: Text , Journal article
- Relation: Space and Culture Vol. 27, no. 1 (2024), p. 94-109
- Full Text: false
- Reviewed:
- Description: The impact of gentrification in cities is well established. The continuous evolution in geolocation and social media is intensifying the contest between competing stakeholder claims to authenticity about gentrifying places. In this article, we examine the way that different geolocative social media define a struggle over the rights to authenticity in a rapidly gentrifying neighborhood in Brisbane, Australia. Local voices are often submerged by the voices of commercial imperative, particularly when the rent gap in gentrifying neighborhoods begins to attract abstract capital with a vested interest in commodifying local culture. We use Instagram and Facebook to critically examine how the hegemonic influence of social media can construct a gentrifying neighborhood in immaterial space and argue that these constructions work to eradicate the complex array of communities that comprise this neighborhood in material space. © The Author(s) 2022.
Large language model based framework for automated extraction of genetic interactions from unstructured data
- Gill, Jaskaran, Chetty, Madhu, Lim, Suryani, Hallinan, Jennifer
- Authors: Gill, Jaskaran , Chetty, Madhu , Lim, Suryani , Hallinan, Jennifer
- Date: 2024
- Type: Text , Journal article
- Relation: PLoS ONE Vol. 19, no. 5 May (2024), p.
- Full Text:
- Reviewed:
- Description: Extracting biological interactions from published literature helps us understand complex biological systems, accelerate research, and support decision-making in drug or treatment development. Despite efforts to automate the extraction of biological relations using text mining tools and machine learning pipelines, manual curation continues to serve as the gold standard. However, the rapidly increasing volume of literature pertaining to biological relations poses challenges in its manual curation and refinement. These challenges are further compounded because only a small fraction of the published literature is relevant to biological relation extraction, and the embedded sentences of relevant sections have complex structures, which can lead to incorrect inference of relationships. To overcome these challenges, we propose GIX, an automated and robust Gene Interaction Extraction framework, based on pre-trained Large Language models fine-tuned through extensive evaluations on various gene/protein interaction corpora including LLL and RegulonDB. GIX identifies relevant publications with minimal keywords, optimises sentence selection to reduce computational overhead, simplifies sentence structure while preserving meaning, and provides a confidence factor indicating the reliability of extracted relations. GIX’s Stage-2 relation extraction method performed well on benchmark protein/gene interaction datasets, assessed using 10-fold cross-validation, surpassing state-of-the-art approaches. We demonstrated that the proposed method, although fully automated, performs as well as manual relation extraction, with enhanced robustness. We also observed GIX’s capability to augment existing datasets with new sentences, incorporating newly discovered biological terms and processes. Further, we demonstrated GIX’s real-world applicability in inferring E. coli gene circuits. © 2024 Gill et al. This is an open access article distributed under the terms of the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited.
- Authors: Gill, Jaskaran , Chetty, Madhu , Lim, Suryani , Hallinan, Jennifer
- Date: 2024
- Type: Text , Journal article
- Relation: PLoS ONE Vol. 19, no. 5 May (2024), p.
- Full Text:
- Reviewed:
- Description: Extracting biological interactions from published literature helps us understand complex biological systems, accelerate research, and support decision-making in drug or treatment development. Despite efforts to automate the extraction of biological relations using text mining tools and machine learning pipelines, manual curation continues to serve as the gold standard. However, the rapidly increasing volume of literature pertaining to biological relations poses challenges in its manual curation and refinement. These challenges are further compounded because only a small fraction of the published literature is relevant to biological relation extraction, and the embedded sentences of relevant sections have complex structures, which can lead to incorrect inference of relationships. To overcome these challenges, we propose GIX, an automated and robust Gene Interaction Extraction framework, based on pre-trained Large Language models fine-tuned through extensive evaluations on various gene/protein interaction corpora including LLL and RegulonDB. GIX identifies relevant publications with minimal keywords, optimises sentence selection to reduce computational overhead, simplifies sentence structure while preserving meaning, and provides a confidence factor indicating the reliability of extracted relations. GIX’s Stage-2 relation extraction method performed well on benchmark protein/gene interaction datasets, assessed using 10-fold cross-validation, surpassing state-of-the-art approaches. We demonstrated that the proposed method, although fully automated, performs as well as manual relation extraction, with enhanced robustness. We also observed GIX’s capability to augment existing datasets with new sentences, incorporating newly discovered biological terms and processes. Further, we demonstrated GIX’s real-world applicability in inferring E. coli gene circuits. © 2024 Gill et al. This is an open access article distributed under the terms of the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited.