Shared Resources Research Articles

Effects of Encarsia formosa (Hymenoptera: Aphelinidae) parasitism on the feeding preference and performance of the whitefly predator Serangium japonicum (Coleoptera: Coccinellidae)

The relationship among the whitefly Bemisia tabaci (Hemiptera: Aleyrodidae), its predator Serangium japonicum (Coleoptera: Coccinellidae), and its parasitoid Encarsia formosa (Hymenoptera: Aphelinidae) can be defined as intraguild predation (IGP). IGP represents an interaction that combines elements of both predation and competition between two species. In our previous study, predators (S. japonicum) often indirectly reduce the number of parasitoids (E. formosa) by consuming shared food resources, such as B. tabaci. To suppress whitefly outbreaks, a combination of parasitoids and predators is often released together using a mixed-species approach. However, the impact of the parasitic behavior of parasitoids on the feeding behavior of specific predators, such as S. japonicum, has not yet been well-studied. We conducted a laboratory study to examine how the parasitoid E. formosa affects the predation rates and performance of S. japonicum. Results indicate that S. japonicum shows a preference for non-parasitized whiteflies over parasitized ones, regardless of the availability of choices. Furthermore, we found a correlation between the preference for non-parasitized whiteflies and the duration of parasitization. As the developmental days of the parasitoid mummies increased, the food intake of the predatory group decreased significantly. Additionally, as the parasitoid mummy develops, S. japonicum spends more time exploring and probing the mummy before deciding whether to consume it. In summary, our study suggests that S. japonicum exhibits a significant preference for consuming non-parasitized whiteflies. Therefore, it is important to coordinate the release timing of S. japonicum and E. formosa in the biological control of B. tabaci.

Data-Driven Nonlinear Model Predictive Control for Power Sharing of Inverter-Based Resources

Data-Driven Nonlinear Model Predictive Control for Power Sharing of Inverter-Based Resources

Post-Quantum Blockchain-Based Decentralized Identity Management for Resource Sharing in Open Radio Access Networks

Post-Quantum Blockchain-Based Decentralized Identity Management for Resource Sharing in Open Radio Access Networks

A Case Study on the Application of a STEAM Education Program for Children in a Community Child Center: Focusing on Creative Problem-Solving and Interpersonal Skills

Objectives: This study aimed to observe the behavior of early grade elementary-school children enrolled in a community child center regarding creative problem-solving and interpersonal skills during the STEAM education program using qualitative research methods.Methods: The 10th STEAM education program was conducted from May to July 2023 at a community child center. With the consent of the participants, six early grade elementary-school children from the community child center were selected. The collected data were investigated to determine qualitative changes in participants’ behavior and thinking. The data were analyzed according to the criteria for creative problemsolving and interpersonal skills.Results: This study classified three stages of change in children while implementing the STEAM education program. In the 1st to 3rd sessions, the results were classified as “Problem-solving through profound exploration and observation” and a “Lack of interest and participation motivation” in creative problem-solving skills, and “Communication lacking consideration” in interpersonal skills. In the 4th to 9th sessions, they were categorized as “Idea presentation through divergent thinking” and “Perseverance toward achieving goals” in creative problem-solving skills and “Decision-making through role allocation” and “Sharing resources and cooperative communication” in interpersonal skills. In the 10th session, they were analyzed as “Effective self-expression and acceptance of others” in interpersonal skills.Conclusion: This study is significant because it supports the development of creative problem-solving and interpersonal skills of children in a community child center through the STEAM education program. This suggests the potential to contribute to the diversity and quality improvement of community childcare programs.

Mobile Learning and Resource Sharing Mode of College English Translation Based on 5G Mobile Communication Technology

The application of 5G and other mobile communication technologies to education and teaching, and the construction of College English Translation mobile learning and resource sharing model and related models have important scientific value and significance for the effective organization and management of learning resources and the improvement of the speed and efficiency of college english translation resource retrieval. This research mainly combines the characteristics of complementarity and expansion of mobile learning technology for traditional online learning technology. Based on Moodle online teaching platform, this research develops a mobile learning and resource sharing mode for college english translation based on 5G mobile communication technology, designs and implements a mobile learning model based on Moodle platform, and designs the system architecture, functional modules, learning mode and learning process, Finally, the main functional modules of the system model are implemented and tested. To promote mobile learning in the teaching field to play a helping role in a wide range. The experimental results show that the AKAZE algorithm is used to optimize the model, and the overall accuracy rate reaches 74.7%, and the test probability value P (siq)=0.00, which is significantly less than the significant level of 0.05. Therefore, we believe that the application of mobile learning instructional design mode will help students improve their academic performance.

Quantifying the performance of bidirectional quantum teleportation

Bidirectional teleportation is a fundamental protocol for exchanging quantum information between two parties by means of a shared resource state and local operations and classical communication (LOCC). In this paper, we develop two seemingly different ways of quantifying the simulation error of unideal bidirectional teleportation by means of the normalized diamond distance and the channel infidelity, and we prove that they are equivalent. By relaxing the set of operations allowed from LOCC to those that completely preserve the positivity of the partial transpose, we obtain semi-definite programming lower bounds on the simulation error of unideal bidirectional teleportation. We evaluate these bounds for several key examples: when there is no resource state at all and for isotropic and Werner states, in each case finding an analytical solution. The first aforementioned example establishes a benchmark for classical versus quantum bidirectional teleportation. Another example consists of a resource state resulting from the action of a generalized amplitude damping channel on two Bell states, for which we find an analytical expression for the simulation error that is in agreement with numerical estimates (up to numerical precision). We then evaluate the performance of some schemes for bidirectional teleportation due to (Kiktenko et al., Phys. Rev. A 93, 062305 (2016)) and find that they are suboptimal and do not go beyond the aforementioned classical limit for bidirectional teleportation. We offer a scheme alternative to theirs that is provably optimal. Finally, we generalize the whole development to the setting of bidirectional controlled teleportation, in which there is an additional assisting party who helps with the exchange of quantum information, and we establish semi-definite programming lower bounds on the simulation error for this task. More generally, we provide semi-definite programming lower bounds on the performance of bipartite and multipartite channel simulation using a shared resource state and LOCC.

Assessment of the performance of implementation of renewable energy facilities with the prospect of hydrogen production using the example of southern Russia

Adopting experience and best practices for stimulating the development of RES in individual regions that most successfully implement RES-based installations into their energy balance is a necessary element in the development of the energy sector of disadvantaged regions, while a methodology is needed to determine what factors influenced the success of implementation and what criteria should be used to compare and to determine the success of the implementation of RES in the region, however, a generally accepted methodology has not been formed to date. It was proposed to determine the leading regions and disadvantaged regions from the point of view of success in introducing renewable energy sources into the regional energy system based on the success of fulfilling the regional demand. To assess the success of the use and implementation of installations based on renewable energy in the regional energy system, it is necessary to identify parameters that reflect the potential of renewable energy sources, the initial state of energy supply in the region, the costs of construction of the installation, the profit received from the sale of generated energy, and the current state of the regional energy system. Based on the developed technique, the six most energy-intensive regions included in the operating area of the Southern Branch of United Dispatch Control Center of Russian Power System Operator which have renewable energy power plants were analyzed. The chosen indicator was the share of energy resources generated from renewable energy sources in the total amount of energy resources. Based on the results of the analysis, recommendations were drawn for disadvantaged regions. Energy donation for disadvantaged areas is proposed through the production of a universal energy carrier - hydrogen - in prosperous areas. For energy storage, hydrogen cryogenic storage facilities have been considered promising. The standard cryogenic hydrogen tank RSV-1400 was adopted as part of the main element of the hydrogen storage facility. The capacity of such tanks is 1 000 000 L. To transport energy to consumers, the possibilities of transporting hydrogen by cryogenic tankers and hydrogen transport tanks have been considered.In addition, at present there is a fairly large scientific, technical and practical base for the creation of gas and cryogenic liquid hydrogen pipelines.

The Ouest Data Hub: An Interregional Health Data Sharing Ecosystem for Research.

The Ouest Data Hub (ODH) a project lead by GCS HUGO which is a cooperation group of University Hospitals in the French Grand Ouest region represents a groundbreaking initiative in this territory, advancing health data sharing and reuse to support research driven by real-world health data. Central to its structure are the Clinical Data Warehouses (CDWs) and Clinical Data Centers (CDCs), essential for analytics and as the linchpin of the ODH's status as an interregional Learning Health System. Aimed at fostering innovation and research, the ODH's collaborative and multi-institutional model effectively utilizes both local and shared resources. Yet, the path is not without challenges, especially in data quality and interoperability, where ongoing harmonization and standard adherence are critical. In 2023, this facilitated access to extensive health data from over 9.3 million patient records, demonstrating the ODH's capacity for both monocentric and multicentric research across various clinical fields, in close collaboration with physicians. The integration of healthcare professionals is crucial, ensuring data's clinical relevance and guiding accurate interpretations. Future expansions of the ODH to new hospitals and data types promise to enhance its model further, already inspiring similar frameworks across France. This scalable model for health data ecosystems showcases the ODH's potential as a foundation for national and supranational data sharing efforts.

Effects of Resource Sharing Networks on Community Anti-Drug Coalitions’ Outcomes: A Social Network Analysis

Substance use-related problems continue to be a national public health crisis despite years of prevention efforts. Community anti-drug coalitions are well positioned to address substance use at local levels. Coalitions often rely on their members to connect to resources they need to address community issues and plan for sustainability over time. Such capacity building occurs through voluntary cooperation among members, making it essential to understand the role network connections play. This study sought to determine whether structural characteristics of coalitions’ resource sharing networks impact members’ perceptions of community improvement and coalition sustainability. Surveys at two timepoints collected data from 68 coalitions in Pennsylvania and Missouri on members’ connections or ties to share information, personnel, money, or other types of collaboration. Analyses examined how coalition-level measurements of sectoral diversity, density, and resource sharing centralization, respectively, were associated with members’ perceptions of community improvement, sustainability planning, and coalition sustainability. Sectoral diversity and centralization were unrelated to study outcomes. Density was also unrelated with perceived community improvement and sustainability planning. However, two facets of cooperative density were positively associated with perceived coalition sustainability: the density of ties to share information and the density of multiple types of collaborative ties. This study suggests that both information and other collaborative ties foster perceived coalition sustainability, although not community improvement.

A framework for identifying opportunities for multisectoral action for drowning prevention in health and sustainable development agendas: a multimethod approach

IntroductionThe 2023 World Health Assembly resolution 76.18 committed the World Health Organization to the coordination of drowning prevention efforts, including those of United Nations (UN) agencies. Here, we aim to...

Research and Design of Teaching Case Database for Resource Sharing in the Context of “Internet Plus”

Research and Design of Teaching Case Database for Resource Sharing in the Context of “Internet Plus”

Shared space and resource use within a building environment: An indoor geography

AbstractIndoor spaces are essential to most humans' lives. Furthermore, in many cases, buildings are shared indoor environments that contain diverse people and resources. Spatial patterns of use are important but under‐examined aspects of human‐building interactions. This study leverages perspectives from human‐environment geography and mechanical engineering to examine spatial patterns of use within a network of shared indoor spaces in an academic building at a research university in the United States. Here we ask: (1) What spaces and resources do building users value? and (2) How are values associated with observed measures of use? We hypothesise that spatial patterns of use follow an ideal free distribution (IFD), a common ecological model of resource use. To test this, we define measures of value and use derived from mixed qualitative (n = 50) and survey‐based social data (n = 196) and data from a building‐based system of accelerometers. Our analyses provide some support for the IFD hypothesis. We discuss the implications of this finding and potential new avenues for geographic research in shared indoor environments.

Space and the return of Rome

Rapid development and increased human impact in outer space has necessitated space sustainability strategies. To protect the continued use of outer space and celestial bodies, policy makers and scholars have proposed and attempted to manage the domain through a variety of mechanisms e.g. treaty formulation, cooperative engagement/assertion, adherence to the Common Heritage of Mankind principle (CHM) and International Law. However, despite nearly 65 years of space activity, questions about how the domain is defined and how sovereignty is applied remain, with commonly used terms being controversial and imprecise. By examining fundamental concepts and early legal principles applied to modern shared resources, we can better understand both the essential attributes and development of the space domain. We assert that the principles of res nullius and res communis can be used to both define shared resource domains and measure their operational development. We understand these principles not as distinct categories, but as a continuum, upon which all shared resource domains lie, thus presenting an alternative framework for describing the shared domain.

Information work and digital support during the perinatal period: Perspectives of mothers and healthcare professionals.

During pregnancy and early motherhood, the perinatal period, women use a variety of resources including digital resources to support social interactions, information seeking and health monitoring. While previous studies have investigated specific timepoints, this study takes a more holistic approach to understand how information needs and resources change over the perinatal period. Furthermore, we include the perspective of maternity healthcare professionals to better understand the relationship between different stakeholders in the information work of perinatal women. A total of 25 interviews with 10 UK based mothers and 5 healthcare professionals (3 Midwives and 2 Health visitors) were conducted. Perinatal women were asked about their information and support needs throughout pregnancy and the postnatal period, healthcare professionals were asked about information and support provision to perinatal women. Information work activities were grouped along stages of the perinatal timeline from pre-pregnancy to the postanal period to illustrate the work and perspectives of the women and the healthcare professionals. Information work varies considerably over the timeline of the perinatal period, shifting back and forth in focus between mother and baby. information work during this period consists of many information related activities including seeking, monitoring, recording, questioning, sharing and checking. The importance of the HCPs as stakeholders in this work is notable as is the digital support for information work. Importantly, paper-based resources are still an important shared resource allowing reflection and supporting communication. Information work for women varies across the perinatal timeline. Particular challenges exist at key transition points, and we suggest design considerations for more integrated digital resources that support information work focused on mother and baby to enhance communication between perinatal women and healthcare professionals.

Improved PBFT-Based High Security and Large Throughput Data Resource Sharing for Distribution Power Grid

Improved PBFT-Based High Security and Large Throughput Data Resource Sharing for Distribution Power Grid

The STEP Initiative – A Materials Genome Approach for Open Resource Sharing

The STEP Initiative – A Materials Genome Approach for Open Resource Sharing

Industrial Cluster in the Competitiveness of Automotive Services Companies: Mediation of the Value Chain

Companies need to associate to share resources and capabilities, thereby achieving greater competitiveness in the market. The objective was to measure the influence of the industrial cluster on business competitiveness, mediated by the value chain in small automotive services companies in Peru. With a quantitative, basic approach, with a non-experimental design, cross-sectional data collection, causal scope, from a sample of 302 companies, applying a survey with a 51-item questionnaire, the data was processed with SPSS and PROCESS, applying a simple mediation model. The results showed that the industrial cluster is perceived as fair by 38.7% of respondents, the value chain as good by 42.1%, and business competitiveness as poor by 32.1%. The industrial cluster is related at 0.223 to business competitiveness, and 0.225 to the value chain. The value chain has a relationship of 0.832 with business competitiveness and an indirect effect of 0.187 in the relationship of the industrial cluster and business competitiveness, all significant relationships. It is concluded that the industrial cluster is fundamental in the competitiveness of automotive service companies and the value chain is the tool that enhances the relationship between these variables.

Beyond Hypertension: Examining Variable Blood Pressure's Role in Cognition and Brain Structure.

Hypertension or high blood pressure (BP) is one of the 12 modifiable risk factors that contribute to 40% of dementia cases that could be delayed or prevented. Although hypertension is associated with cognitive decline and structural brain changes, less is known about the long-term association between variable BP and cognitive/brain changes. This study examined the relationship between variable BP and longitudinal cognitive, white matter hyperintensity (WMH), gray matter (GM), and white matter (WM) volume change over time and postmortem neuropathology. A total of 4,606 participants (32,776 follow-ups) from RADC Research Resource Sharing Hub (RUSH) and 2,114 participants (9,827 follow-ups) fromtheAlzheimer's Disease Neuroimaging Initiative (ADNI) were included. Participants were divided into 1 of 3 groups: normal, high, or variable BP. Linear-mixed models investigated the relationship between BP and cognition, brain structure, and neuropathology. Older adults with variable BP exhibited the highest rate of cognitive decline followed by high and then normal BP. Increased GM volume loss and WMH burden were also observed in variable compared to high and normal BP. In postmortem neuropathology, both variable and high BP had increased rates compared to normal BP. Results were consistent across the RUSH and ADNI participants, supporting the generalizability of the findings. Damages potentially associated with variable BP may reduce resilience to future dementia-related pathology and increased the risk of dementia more than that caused by high BP. Improved treatment and management of variable BP may help reduce cognitive decline in the older adult population.

DREAMers’ Perceptions of Relational Impacts After DACA

ABSTRACT DREAMers, undocumented people raised in the US, discussed their perspectives on changes in relational dynamics after access to Deferred Action for Childhood Arrivals (DACA) legislation. Ten participants, who through semi-structured interviews, discussed how DACA legislation impacted their mixed-legal status families. Using Interpretative Phenomenological Analysis with Participatory Action Research and Systems Theory frameworks, themes emerged that represented DREAMers’ collective experiences and the essence of the phenomenon related to how access to DACA legislation affected relationships. Themes included the superordinate theme, Relational Impacts of DACA and subthemes, Shared Wins and Resources and Mending Relationships. Discussion includes implications for clinicians, researchers, and policymakers.

Analysis and Mitigation of Shared Resource Contention on Heterogeneous Multicore: An Industrial Case Study

Analysis and Mitigation of Shared Resource Contention on Heterogeneous Multicore: An Industrial Case Study