Service Learning in Overseas Nations: U.S. Student Teachers Give, Grow, and Gain Outside the Classroom

Service learning and overseas student teaching are receiving increased attention in education literature. For example, Kielsmeier (1993) touts service learning as an emerging educational improvement strategy (p. 5) in the U.S. school reform movement. Learning activities, by combining classroom work with service/social action projects, ... can help produce dramatic improvements in student attitudes, motivation, and achievement (Nathan & Kielsmeier, 1991, p. 739)

WebMonitor: Verification of Web User Interfaces

Application development for the modern Web involves sophisticated engineering workflows which include user interface aspects. Those involve Web elements typically created with HTML/CSS markup and JavaScript-like languages, yielding Web documents. WebMonitor leverages requirements formally specified in a logic able to capture both the layout of visual components as well as how they change over time, as a user interacts with them. Then, requirements are verified upon arbitrary web pages, allowing for automated support for a wide set of use cases in interaction testing and simulation. We position WebMonitor within a developer workflow, where in case of a negative result, a visual counterexample is returned. The monitoring framework we present follows a black-box approach, and as such is independent of the underlying technologies a Web application may be developed with, as well as the browser and operating system used. WebMonitoris available as open source software: https://github.com/ennioVisco/webmonitor Video demonstration of WebMonitor: https://youtu.be/hqVw0JU3k9

SMART HOSPITALS AND PATIENT-CENTERED GOVERNANCE

This paper explores innovative governance models in the healthcare sector. Patients are a key albeit under-investigated stakeholder and smart technologies applied to public healthcare represent a trendy innovation that reshapes the value-driving proposition. This study contributes to the best practice improvement in this sector, showing how health governance can balance the interests of conflicting stakeholders (patients, staff, politicians, private providers, banks, suppliers, etc.) when technology-driven (smart) investments are realized. Characteristics of smart hospitals are critically examined, and governance solutions are considered, together with private actors\u2019 involvement and flexible forms of remuneration. Smart hospitals are so complicated that they may require sophisticated Public-Private Partnerships (PPP). Public players lack innovative skills, whereas private actors seek additional remuneration for their non-routine efforts and higher risk. PPP represents a feasible governance framework, especially if linked to Project Financing (PF) investment patterns. Results-Based Financing (RBF) softens traditional PPP criticalities as availability payment sustainability or risk transfer compensation. Waste of public money can consequently be reduced, and private bankability improved. Patient-centered smart hospitals reshape traditional healthcare governance, with savings and efficiency gains that meliorate timeliness and execution of cares. Transformation of in-patients to out-patients and then home-patients represents, whenever possible, a mighty goal

SMART HOSPITALS AND PATIENT-CENTERED GOVERNANCE

This paper explores innovative governance models in the healthcare sector. Patients are a key albeit under-investigated stakeholder and smart technologies applied to public healthcare represent a trendy innovation that reshapes the value-driving proposition. This study contributes to the best practice improvement in this sector, showing how health governance can balance the interests of conflicting stakeholders (patients, staff, politicians, private providers, banks, suppliers, etc.) when technology-driven (smart) investments are realized. Characteristics of smart hospitals are critically examined, and governance solutions are considered, together with private actors’ involvement and flexible forms of remuneration. Smart hospitals are so complicated that they may require sophisticated Public-Private Partnerships (PPP). Public players lack innovative skills, whereas private actors seek additional remuneration for their non-routine efforts and higher risk. PPP represents a feasible governance framework, especially if linked to Project Financing (PF) investment patterns. Results-Based Financing (RBF) softens traditional PPP criticalities as availability payment sustainability or risk transfer compensation. Waste of public money can consequently be reduced, and private bankability improved. Patient-centered smart hospitals reshape traditional healthcare governance, with savings and efficiency gains that meliorate timeliness and execution of cares. Transformation of in-patients to out-patients and then home-patients represents, whenever possible, a mighty goal

Available Technologies and Commercial Devices to Harvest Energy by Human Trampling in Smart Flooring Systems: a Review

Technological innovation has increased the global demand for electrical power and energy. Accordingly, energy harvesting has become a research area of primary interest for the scientific community and companies because it constitutes a sustainable way to collect energy from various sources. In particular, kinetic energy generated from human walking or vehicle movements on smart energy floors represents a promising research topic. This paper aims to analyze the state-of-art of smart energy harvesting floors to determine the best solution to feed a lighting system and charging columns. In particular, the fundamentals of the main harvesting mechanisms applicable in this field (i.e., piezoelectric, electromagnetic, triboelectric, and relative hybrids) are discussed. Moreover, an overview of scientific works related to energy harvesting floors is presented, focusing on the architectures of the developed tiles, the transduction mechanism, and the output performances. Finally, a survey of the commercial energy harvesting floors proposed by companies and startups is reported. From the carried-out analysis, we concluded that the piezoelectric transduction mechanism represents the optimal solution for designing smart energy floors, given their compactness, high efficiency, and absence of moving parts

Adoption of 3D printed highly conductive periodic open cellular structures as an effective solution to enhance the heat transfer performances of compact Fischer-Tropsch fixed-bed reactors

Abstract Heat transfer is universally recognized as a key challenge for the intensification of the Fischer-Tropsch (FT) process in compact fixed-bed reactors. For the first time in the scientific literature we demonstrate experimentally that the adoption of a highly conductive periodic open cellular structure (POCS, 3D-printed in AlSi7Mg0.6 by Selective Laser Melting) packed with catalysts pellets is a promising solution to boost heat exchange in fixed-bed FT reactors. This reactor configuration enabled us to assess the performances of a highly active Co/Pt/Al2O3 catalyst packed into the POCS at process conditions relevant to industrial Fischer-Tropsch operation. Unprecedented performances (CO conversion ≈ 80%) could be thus achieved thanks to an outstanding heat management. In fact, almost flat axial and radial temperature profiles were measured along the catalytic bed even under the most severe process conditions (i.e. high CO conversions corresponding to high volumetric heat duties), demonstrating the effective potential of this reactor concept to manage the strong exothermicity of the FT reaction. The heat transfer of the packed-POCS reactor outperformed both packed-bed and packed-foam reactors, granting smaller radial temperature gradients in the catalytic bed, as well as smaller temperature differences at the reactor wall, with larger volumetric power releases. The strengths of the packed-POCS reactor configuration are its regular geometry, which enhances the effective radial thermal conductivity, and the improved contact between the structure and the reactor wall, which governs the limiting wall heat transfer coefficient

Identification markers based on fatty acid composition to differentiate between roasted Arabica and Canephora (Robusta) coffee varieties in mixtures

Commercial coffee is available as a mixture of two varieties of coffee beans, namely Arabica, which is more expensive, and Canephora (Robusta), less expensive. To assess the correspondence between the composition indicated on the label and the real composition of commercially available coffee, it would be desirable to be able to differentiate between the two varieties. This would also help to avoid any possible commercial frauds. This work identifies parameters based on the fatty acid composition to differentiate between Arabica and Canephora coffee in a mixture. Total monounsaturated fatty acids (SMUFA), linolenic acid (cis18:3n–3) concentration, the 18:0/cis18:1n–9 ratio, and the SMUFA/SSFA ratio could be used to determine the relative amounts of Arabica and Canephora in a coffee blend

Can Public-Private Partnerships Foster Investment Sustainability in Smart Hospitals?

This article addresses the relationship between Public-Private Partnerships (PPP) and the sustainability of public spending in smart hospitals. Smart (technological) hospitals represent long-termed investments where public and private players interact with banking institutions and eventually patients, to satisfy a core welfare need. Characteristics of smart hospitals are critically examined, together with private actors\u2019 involvement and flexible forms of remuneration. Technology-driven smart hospitals are so complicated that they may require sophisticated PPP. Public players lack innovative skills, whereas private actors seek additional compensation for their non-routine efforts and higher risk. PPP represents a feasible framework, especially if linked to Project Financing (PF) investment patterns. Whereas the social impact of healthcare investments seems evident, their financial coverage raises growing concern in a capital rationing context where shrinking public resources must cope with the growing needs of chronic elder patients. Results-Based Financing (RBF) is a pay-by-result methodology that softens traditional PPP criticalities as availability payment sustainability or risk transfer compensation. Waste of public money can consequently be reduced, and private bankability improved. In this study, we examine why and how advanced Information Technology (IT) solutions implemented in \u201cSmart Hospitals\u201d should produce a positive social impact by increasing at the same time health sustainability and quality of care. Patient-centered smart hospitals realized through PPP schemes, reshape traditional healthcare supply chains with savings and efficiency gains that improve timeliness and execution of care

Oligomer-based organic distributed feedback lasers by room-temperature nanoimprint lithography

Room-temperature nanoimprint lithography in air is used in order to pattern a nonthermoplastic, low-molar-mass thiophene-based pentamer with excellent gain properties. No degradation of the luminescence efficiency of the active medium was observed after patterning. In this way, we fabricated single-mode emission distributed feedback lasers having a threshold excitation fluence of 140 μJ/cm2. The lasing line is peaked at 637 nm and exhibits a linewidth of less than 0.7 nm and a well-behaved input-output characteristic in the whole range of pump fluences. These results demonstrate room-temperature nanoimprint lithography as powerful and straightforward fabrication technique for oligomer-based nanostructured optoelectronic devices

Solid‐state laser devices based on an optically‐confined oligothiophene‐S,S‐dioxide

We investigated the gain properties of spin coated films of a soluble substituted quinque-thiophene under ns pulsed optical excitation. The oligomer exhibits a clear line narrowing, due to amplified spontaneous emission assisted by waveguiding film slab, for excitation fluences larger than 0.8 mJ cm−2. The oligothiophene was employed as the active medium of different organic resonators. In particular, we report about directly printed organic distributed-feedback resonators, exploiting the one-dimensional periodic modulation of the organic surface. The devices exhibit single-mode emission between 630 and 640 nm, with a full width half maximum of about 1 nm and a pump threshold as low as 140 μJ/cm2 at room temperature. These results make the substituted oligothiophenes excellent candidates as active media of optically-confined nanostructures. (© 2004 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim