672 research outputs found

    The internet and public bureaucracies: towards balancing competing values

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    Innovation in public administration is one of the central aspects of public sector reforms. Given the procedural nature of government tasks, the adoption of the Internet and related information and communication technologies (ICT) has become critical for government organisations. The aim of this paper is to discuss the implications of the diffusion Internet led innovations in the public sector on balancing public values. Rather than diminishing their benefits, we aim at highlighting challenges and dilemmas that can emerge from ICT implementation in the public sector. The paper starts by reviewing the main trends of e-government research and show a dominant view towards managerial and private sector values embedded in the literature. To propose an alternative approach, we then draw on an empirical example from Mexico, that of the Federal Transparency and Access to Government Information Law. Using Mexico’s available statistics and secondary data, the case explores how a quicker ICT-mediated interaction between citizens and government can result in social and political dilemmas. We propose to bring into play the public value paradigm to highlight these issues. Conclusions follow

    Public sector reforms and the notion of 'public value': implications for egovernment deployment

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    Governments are increasingly investing in information and communication technologies (ICT) as tool to foster the rationalization of public administration. This paper discusses e-government within the context of governmental reforms heavily influenced by the New Public Management (NPM), which suggests that the use of ICT within the public sector will enhance efficiency, effectiveness and accountability. Based on the concept of ‘public value’ developed by Moore (1995), we propose to question the overall impact e-government initiatives may have on governments’ ability to deliver social and economic outcomes that correspond to citizens’ expectations. Our central argument is presented as follows: while ICT can help to achieve the main NPM values, e-government initiatives do not guarantee to have a positive effect on broader public values. Even when this argument is not new, in this paper we aim to strengthen the need for a deeper discussion of the implications of e-government programs in the context of public values. To do so, we propose a framework that distinguishes between clusters of public values: those that are related to managerial practices and those related to democratic values. We draw on descriptive examples to illustrate our main arguments

    The new public management, e-government and the notion of ‘public value’: lessons from Mexico

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    E-government has increasingly become one of the keys government’s interests. This paper discusses e- government within the context of governmental reforms heavily influenced by the New Public Management (NPM). The general vision of NPM supposes that the use of information and communication technologies (ICT) will enhance efficiency, policy effectiveness and democratic values (OCDE 2003). Based on the concept of ‘public value’ developed by Moore (1995), we discuss how e- government policies impact government’s political agendas, and not only the process throughout government deliver public services. ICT, we argue, do not only change the platform used to serve public services but also the nature of these public services. Our central argument is presented as follows: if e- government is strictly following the NPM prescriptions (efficiency and accountability), there is a risk of missing the social and political implications associated with the use of ICT in the public sector. Works addressing such other social and political values are the exception in the literature of e-government. Thus, in this paper we aim to open the way for a deeper discussion of the effects of e-government policies on public values. We draw on an empirical case from Mexico to illustrate our main arguments

    Wearable High Voltage Compliant Current Stimulator for Restoring Sensory Feedback

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    Transcutaneous Electrical Nerve Stimulation (TENS) is a promising technique for eliciting referred tactile sensations in patients with limb amputation. Although several studies show the validity of this technique, its application in daily life and away from laboratories is limited by the need for more portable instrumentation that guarantees the necessary voltage and current requirements for proper sensory stimulation. This study proposes a low-cost, wearable high-voltage compliant current stimulator with four independent channels based on Components-Off-The-Shelf (COTS). This microcontroller-based system implements a voltage-current converter controllable through a digital-to-analog converter that delivers up to 25 mA to load up to 3.6 kΩ. The high-voltage compliance enables the system to adapt to variations in electrode-skin impedance, allowing it to stimulate loads over 10 kΩ with currents of 5 mA. The system was realized on a four-layer PCB (115.9 mm × 61 mm, 52 g). The functionality of the device was tested on resistive loads and on an equivalent skin-like RC circuit. Moreover, the possibility of implementing an amplitude modulation was demonstrated

    Care coordination in a business-to-business and a business-to-consumer model for telemonitoring patients with chronic diseases

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    Introduction For telemonitoring to support care coordination, a sound business model is conditional. The aim of this study is to explore the systemic and economic differences in care coordination via business-to-business and business-to-consumer models for telemonitoring patients with chronic diseases. Methods We performed a literature search in order to design the business-to-business and business-to-consumer telemonitoring models, and to assess the design elements and themes by applying the activity system theory, and describe the transaction costs in each model. The design elements are content, structure, and governance, while the design themes are novelty, lock-in, complementarities, and efficiency. In the transaction cost analysis, we looked into all the elements of a transaction in both models. Results Care coordination in the business-to-business model is designed to be organized between the places of activity, rather than the participants in the activity. The design of the business-to-business model creates a firm lock-in but for a limited time. In the business-to-consumer model, the interdependencies are to be found between the persons in the care process and not between the places of care. The differences between the models were found in both the design elements and the design themes. Discussion Care coordination in the business-to-business and business-to-consumer models for telemonitoring chronic diseases differs in principle in terms of design elements and design themes. Based on the theoretical models, the transaction costs could potentially be lower in the business-to-consumer model than in the business-to-business, which could be a promoting economic principle for the implementation of telemonitoring

    Construction and Evaluation of Coordinated Performance Skeletons

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    Performance prediction is particularly challenging for dynamic foreign environments that cannot be modeled well, such as those involving resource sharing or foreign system components. Our approach is based on the concept of a performance skeleton which is a short running program whose execution time in any scenario reflects the estimated execution time of the application it represents. The fundamental technical challenge is automatic construction of performance skeletons for parallel MPI programs. The steps are 1) generation of process execution traces and conversion to a single coordinated logical program trace, 2) compression of the logical program trace, and 3) conversion to an executable parallel skeleton program. Results are presented to validate the construction methodology and prediction power of performance skeletons. The execution scenarios analyzed involve network sharing, different architectures and different MPI libraries. The emphasis is on identifying the strength and limitations of this approach to performanc

    Dopamine neuronal loss contributes to memory and reward dysfunction in a model of Alzheimer's disease

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    Alterations of the dopaminergic (DAergic) system are frequently reported in Alzheimer’s disease (AD) patients and are commonly linked to cognitive and non-cognitive symptoms. However, the cause of DAergic system dysfunction in AD remains to be elucidated. We investigated alterations of the midbrain DAergic system in the Tg2576 mouse model of AD, overexpressing a mutated human amyloid precursor protein (APPswe). Here, we found an age-dependent DAergic neuron loss in the ventral tegmental area (VTA) at pre-plaque stages, although substantia nigra pars compacta (SNpc) DAergic neurons were intact. The selective VTA DAergic neuron degeneration results in lower DA outflow in the hippocampus and nucleus accumbens (NAc) shell. The progression of DAergic cell death correlates with impairments in CA1 synaptic plasticity, memory performance and food reward processing. We conclude that in this mouse model of AD, degeneration of VTA DAergic neurons at pre-plaque stages contributes to memory deficits and dysfunction of reward processing

    Inhibition of cell proliferation, migration and invasion of B16-F10 melanoma cells by α-mangostin

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    In this study, we have evaluated the potential antineoplastic effects of α-mangostin (α-M), the most representative xanthone in Garcinia mangostana pericarp, on melanoma cell lines. This xanthone markedly inhibits the proliferation of high-metastatic B16-F10 melanoma cells. Furthermore, by deeply analyzing which steps in the metastatic process are influenced by xanthone it was observed that α-M strongly interferes with homotypic aggregation, adhesion, plasticity and invasion ability of B16-F10 cells, probably by the observed reduction of metalloproteinase-9 activity. The antiproliferative and antimetastatic properties of α-M have been established in human SK-MEL-28 and A375 melanoma cells. In order to identify pathways potentially involved in the antineoplastic properties of α-M, a comparative mass spectrometry proteomic approach was employed. These findings may improve our understanding of the molecular mechanisms underlying the anti-cancer effects of α-M on melanoma

    Genetic pre-participation screening in selected athletes: a new tool for the prevention of sudden cardiac death?

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    Sudden cardiac death (SCD) of athletes is a topical issue. “Borderline cardiac abnormalities”, which occur in ~2% of elite male athletes, may result in SCD, which may have a genetic base. Genetic analysis may help identify pathological cardiac abnormalities. We performed phenotype-guided genetic analysis in athletes who, pre-participation, showed ECG and/or echo “borderline” abnormalities, to discriminate subjects at a greater risk of SCD. Methods: We studied 24 elite athletes referred by the National Federation of Olympic sports; and 25 subjects seeking eligibility to practice agonistic sport referred by the Osservatorio Epidemiologico della Medicina dello Sport della Regione Campania. Inclusion criteria: a) ECG repolarization borderline abnormalities; b) benign ventricular arrhythmias; c) left ventricular wall thickness in the grey zone of physiology versus pathology (max wall thickness 12-15 mm in females; 13-16 mm in males). Based on the suspected phenotype, we screened subjects for the LMNA gene, for 8 sarcomeric genes, 5 desmosomal genes, and cardiac calcium, sodium and potassium channel disease genes. Results: Genetic analysis was completed in 37/49 athletes, 22 competitive and 27 non-competitive athletes, showing “borderline” clinical markers suggestive of hypertrophic cardiomyopathy (HCM,n. 24), dilated cardiomyopathy (n. 4), arrhythmogenic right ventricular dysplasia/cathecholaminergic polymorphic ventricular tachycardia (ARVD/CPVT, n. 11), long QT syndrome (LQTS, n. 4), sick sinus syndrome (SSS, n. 5), Brugada syndrome (BrS, n. 1). We identifyed 11 mutations in 9 athletes (an ARVD athlete was compound heterozygote for the PKP2 gene and an HCM athlete was double heterozygote for the MYBPC3 and TNNT2 genes): 3 known mutations related to LQTS, HCM and ARVD, respectively, and 8 novel mutations, located in the SCN5A, RyR2, PKP2, MYBPC3 and ACTC1 genes. The new mutations were absent in ~800 normal chromosomes and were predicted “probably damaging” by in silico analysis. Patch clamp analysis in channelopathies indicated for some mutation abnormal biophysical behavior of the corresponding mutant protein. Conclusion: Genetic analysis may help distinguish between physiology and pathology in athletes with clinically suspected heart disease
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