682 research outputs found

    Staying Power Longer Stays in the My First Place Program Contribute to Successful Outcomes for Transition Age Youth

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    This paper suggests that a well-structured "housing first" program that combines access to permanent housing, education and employment support, yields strong positive outcomes for youth. We find that youth who stay in program longer are more likely to exit into stable housing and make significant progress in achieving their employment, education, and healthy living goals. This finding holds true for youth who entered program with a variety of risk factors. Additionally, the paper identifies the program practices and policies that support these greater outcomes and ultimately save public resources

    A microservices-based control plane for time sensitive networking

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    Time-Sensitive Networking (TSN) is a group of IEEE 802.1 standards that aim at providing deterministic communications over IEEE Ethernet. The main characteristics of TSN are low bounded latency and very high reliability, which complies with the strict requirements of industry and automotive applications. In this context, allocating time slots, configuration paths, and Gate Control Lists (GCLs) to contending TSN streams is often laborious. Software-Defined Networking (SDN) and the IEEE 802.1 Qcc standard provide the basis to design a TSN control plane to face these challenges. However, current SDN/TSN control plane solutions are monolithic applications designed to run on dedicated servers. None of them explores Microservice as a design pattern; these SDN controllers do not provide the required flexibility to escalate when facing increasing service requests. This work presents μ\muTSN-CP, a microservices-based Control Plane (CP) architecture for TSN/SDN that provides superior scalability in situations with highly dynamic service demands. Using a qualitative approach, we evaluate our μ\muTSN-CP solution compared to a monolithic solution in terms of CPU usage, RAM usage, latency, and percentage of successfully allocated TSN Streams. Our μ\muTSN-CP architecture leverages the advantages of microservices, enabling the control plane to scale up or down in response to varying workloads dynamically. We achieve enhanced flexibility and resilience by breaking down the control plane into smaller, independent microservices. The experimental evaluation demonstrates that our TSN-CP outperforms the monolithic solution, with significantly lower CPU and RAM usage, reduced latency, and a higher percentage of successfully allocated TSN Streams. This advancement in TSN/SDN control plane design opens up new possibilities for highly scalable and adaptable networks, catering to the ever-increasing demands of time-sensitive applications in various industries.Objectius de Desenvolupament Sostenible::9 - Indústria, Innovació i Infraestructur

    The Magnetic Response of Starphenes

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    The aromaticity of [n]starphenes (n = 1, 4, 7, 10, 13, 16), as well as starphene-based [19]dendriphene, is addressed by calculating the magnetically induced current density and the induced magnetic field, using the pseudo-Ï€ model. When an external magnetic field is applied, these systems create diatropic currents that split into a global peripheral current surrounding the starphene skeleton and several local currents in the acene-based arms, resulting in large shielding cones above the arms. In particular, the arm currents are smaller than their linear analogs, and in general, the strengths of the ring currents tend to weaken as the starphene get larger

    The Magnetic Response of Starphenes

    Get PDF
    The aromaticity of [n]starphenes (n = 1, 4, 7, 10, 13, 16), as well as starphene-based [19]dendriphene, is addressed by calculating the magnetically induced current density and the induced magnetic field, using the pseudo-Ï€ model. When an external magnetic field is applied, these systems create diatropic currents that split into a global peripheral current surrounding the starphene skeleton and several local currents in the acene-based arms, resulting in large shielding cones above the arms. In particular, the arm currents are smaller than their linear analogs, and in general, the strengths of the ring currents tend to weaken as the starphene get larger

    The Magnetic Response of Starphenes (dagger)

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    The aromaticity of [n]starphenes (n = 1, 4, 7, 10, 13, 16), as well as starphene-based [19]dendriphene, is addressed by calculating the magnetically induced current density and the induced magnetic field, using the pseudo-pi model. When an external magnetic field is applied, these systems create diatropic currents that split into a global peripheral current surrounding the starphene skeleton and several local currents in the acene-based arms, resulting in large shielding cones above the arms. In particular, the arm currents are smaller than their linear analogs, and in general, the strengths of the ring currents tend to weaken as the starphene get larger.Peer reviewe

    A role-based software architecture to support mobile service computing in IoT scenarios

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    The interaction among components of an IoT-based system usually requires using low latency or real time for message delivery, depending on the application needs and the quality of the communication links among the components. Moreover, in some cases, this interaction should consider the use of communication links with poor or uncertain Quality of Service (QoS). Research efforts in communication support for IoT scenarios have overlooked the challenge of providing real-time interaction support in unstable links, making these systems use dedicated networks that are expensive and usually limited in terms of physical coverage and robustness. This paper presents an alternative to address such a communication challenge, through the use of a model that allows soft real-time interaction among components of an IoT-based system. The behavior of the proposed model was validated using state machine theory, opening an opportunity to explore a whole new branch of smart distributed solutions and to extend the state-of-the-art and the-state-of-the-practice in this particular IoT study scenario.Peer ReviewedPostprint (published version

    The efficient synthesis of d-xylulose and formal synthesis of Syringolide 1

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    Wittig reaction and asymmetric dihydroxylation were used as the key steps in the synthesis of D-xylulose, a commercially available but costly carbohydrate. The effects of protecting groups and reactions conditions on asymmetric dihydroxylation are demonstrated. Optically pure D-xylulose was obtained after 4-6 steps from readily available hydroxyacetone and ethylene glycol. The method also involves some other valuable intermediates along the synthesis. Those intermediates were applied in the formal synthesis of Syringolides. A key precursor butenolide to Syringolide 1, the first non-proteinaceous specific elicitors of plant hypersensitive response, was obtained after 3 steps from the intermediate (8–10 steps from hydroxyacetone and ethylene glycol). Wittig reaction and asymmetric dihydroxylation were used as the key steps in the synthesis of D-xylulose, a commercially available but costly carbohydrate. The effects of protecting groups and reactions conditions on asymmetric dihydroxylation are demonstrated. Optically pure D-xylulose was obtained after 4-6 steps from readily available hydroxyacetone and ethylene glycol. The method also involves some other valuable intermediates along the synthesis. Those intermediates were applied in the formal synthesis of Syringolides. A key precursor butenolide to Syringolide 1, the first non-proteinaceous specific elicitors of plant hypersensitive response, was obtained after 3 steps from the intermediate (8–10 steps from hydroxyacetone and ethylene glycol)

    The territorial dimension of electrical power consumption in Andalusia at detailed scales

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    El trabajo analiza las pautas espaciales seguidas por el consumo de energía eléctrica en los municipios andaluces. Sobre los 661 municipios que reciben suministro eléctrico de Sevillana-ENDESA, se toman en consideración 11 variables alusivas al consumo eléctrico total y sectorial y a factores económicos y demográfi cos determinantes de aquéllos. Su análisis permite observar la plasmación espacial de los consumos y realizar una tipología de los municipios con arreglo a su comportamiento consumidor. Como resultado de la tipología se establecen cinco tipos diferentes de municipios en la comunidad andaluza.This paper analyzes the spatial patterns followed by the consumption of electricity in the Andalusian municipalities. 11 variables related to the total and sectorial power consumption as well as economic and demographic factors of them have been taken into account in the 661 municipalities that receive electricity from Sevillana-ENDESA. Their analysis allows observing the spatial pattern of consumption and making a typology of municipalities according to their consumption behavior. As a result a typology with fi ve different types of municipalities is set out
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