1,274 research outputs found
Central Management of Local Performance: A Comparison of England and Korea
The author analyses performance measurement in the public sector and empirically tests the validity, legitimacy and functionality of Comprehensive Performance Assessment in England and Joint Performance Assessment in Korea on the basis of comparative methodology.Since the 1980s, New Public Management (NPM) has deeply influenced the public sector across the world, and thus measuring or managing performance has become a principal element of government reform. In terms of borrowing models and techniques from the private sector, performance measurement has been significantly extended into government, but differences between the two sectors have led to difficulties and criticism of this practice with a wide inconsistent variety of different theoretical explanations about it. In this context, this thesis investigates the effectiveness of performance measurement and theoretical explanations of conditions for its success in the public sector. It focuses through a comparative methodology on Comprehensive Performance Assessment and Joint Performance Assessment that have recently been introduced between the levels of government in England and Korea for the improvement of local government performance and accountability.
Extensive analysis of literature and case studies have allowed the thesis to find firstly, that the introduction of such unique assessment systems, by which the centre assesses localities, was deeply affected by the environmental commonalities of both countries such as centralisation in inter-governmental relations and enthusiasm for NPM. Second, the empirical evaluation of both tools shows that they have in practice been valid for accurate assessment, and directly functional for improvement and indirectly for accountability to the public. Their high validity and functionality proved to be mainly attributable to two characteristics. One was institutionally that both frameworks were based on a balanced approach to performance and the disclosure of assessment results to the public for facilitating competition between localities. The other was that both had impacted on internal management of local government which led to change in organisational culture with more focus on performance. However, it identified a necessity for local authorities to participate in the development process of those tools to ensure legitimacy of central management of local performance since they enjoy their own electorally based political support. The research has also found the importance of assessors’ expertise for accurate assessment and a possibility that performance measurement can contribute to the resolution of political tension and cooperation between central and local government when it focuses more on outcomes than input and process. A deeper theoretical and practical understanding of these successful experiences and important policy elements in contemporary public management contributes significantly to knowledge in the three settings of evaluation of policy instruments, comparison between countries and central-local relations. Finally, the study assists each country and others to draw lessons from each other
Synergistic multi-doping effects on the Li7La3Zr2O12 solid electrolyte for fast lithium ion conduction.
Here, we investigate the doping effects on the lithium ion transport behavior in garnet Li7La3Zr2O12 (LLZO) from the combined experimental and theoretical approach. The concentration of Li ion vacancy generated by the inclusion of aliovalent dopants such as Al(3+) plays a key role in stabilizing the cubic LLZO. However, it is found that the site preference of Al in 24d position hinders the three dimensionally connected Li ion movement when heavily doped according to the structural refinement and the DFT calculations. In this report, we demonstrate that the multi-doping using additional Ta dopants into the Al-doped LLZO shifts the most energetically favorable sites of Al in the crystal structure from 24d to 96 h Li site, thereby providing more open space for Li ion transport. As a result of these synergistic effects, the multi-doped LLZO shows about three times higher ionic conductivity of 6.14 × 10(-4) S cm(-1) than that of the singly-doped LLZO with a much less efforts in stabilizing cubic phases in the synthetic condition
Prediction of Individual Propofol Requirements based on Preoperative EEG Signals
The patient must be given an adequate amount of propofol for safe surgery
since overcapacity and low capacity cause accidents. However, the sensitivity
of propofol varies from patient to patient, making it very difficult to
determine the propofol requirements for anesthesia. This paper aims to propose
a neurophysiological predictor of propofol requirements based on the
preoperative electroencephalogram (EEG). We exploited the canonical correlation
analysis that infers the amount of information on the propofol requirements.
The results showed that the preoperative EEG included the factor that could
explain the propofol requirements. Specifically, the frontal and posterior
regions had crucial information on the propofol requirements. Moreover, there
was a significantly different power in the frontal and posterior regions
between baseline and unconsciousness periods, unlike the alpha power in the
central region. These findings showed the potential that preoperative EEG could
predict the propofol requirements.Comment: 5 pages, 1 figure, 1 tabl
Cognitive and behavioral effects of lamotrigine and carbamazepine monotherapy in patients with newly diagnosed or untreated partial epilepsy
AbstractPurposeIn this prospective study, we compared the long-term cognitive and behavioral effects of lamotrigine (LTG) and carbamazepine (CBZ) in patients with newly diagnosed or untreated partial epilepsy.MethodsThis was a multicenter, open-label, randomized study that compared monotherapy with LTG and CBZ in newly diagnosed or untreated patients with partial epilepsy. We employed an 8-week titration period and a 40-week maintenance period. Neuropsychological tests, Symptom Check List-90, and QOLIE-31 were assessed at baseline, 16 weeks, and 48 weeks after drug treatment. A group-by-time interaction was the primary outcome measure and was analyzed by use of the linear mixed model.ResultsA total of 110 patients were eligible and 73 completed the 48-week study (LTG, n=39; CBZ, n=34). Among the cognitive tests, significant group-by-time interaction was identified only in phonemic fluency of Controlled Oral Word Association Task (p=0.0032) and Stroop Color–Word Interference (p=0.0283), with a significant better performance for LTG group. All other neuropsychological tests included did not show significant group-by-time interactions. Among the subscales of Symptom Check List-90, significant group-by-time interactions were identified in Obsessive-Compulsive (p=0.0005), Paranoid Ideation (p=0.0454), Global Severity Index (p=0.0194), and Positive Symptom Total (p=0.0197), with a significant improvement for CBZ group. QOLIE-31 did not show significant group-by-time interactions.ConclusionOur data suggest that epilepsy patients on LTG have better performance on phonemic fluency and the task of Stroop Color–Word Interference than do patients on CBZ, whereas patients on CBZ had more favorable behavioral effects on two subscales and two global scores of Symptom Check List-90 than did patients on LTG
One-Round Protocol for Two-Party Verifier-Based Password-Authenticated Key Exchange
Abstract. Password-authenticated key exchange (PAKE) for two-party allows a client and a server communicating over a public network to share a session key using a human-memorable password only. PAKE protocols can be served as basic building blocks for constructing secure, complex, and higher-level protocols which were initially built upon the Transport Layer Security (TLS) protocol. In this paper, we propose a provablysecure verifier-based PAKE protocol well suited with the TLS protocol which requires only a single round. The protocol is secure against attacks using compromised server's password file and known-key attacks, and provides forward secrecy, which is analyzed in the ideal hash model. This scheme matches the most efficient verifier-based PAKE protocol among those found in the literature. It is the first provably-secure one-round protocol for verifier-based PAKE in the two-party setting
Monitoring the formation of cholesterol oxidation products in model systems using response surface methodology
Quercetin, the active phenolic component in kiwifruit, prevents hydrogen peroxide-induced inhibition of gap-junction intercellular communication
We evaluated the effects of the two main kiwifruit cultivars (gold kiwifruit (GOK) and green kiwifruit (GRK)) and their active phenolic compound, quercetin, on H2O2-induced inhibition of gap-junction intercellular communication (GJIC) in WB-F344 rat liver epithelial cells. We found that both GOK and GRK protect WB-F344 cells from H2O2-induced inhibition of GJIC. The extracellular signal-regulated protein kinase 1/2 (ERK1/2)-connexin 43 (Cx43) signalling pathway is crucial for the regulation of GJIC, and both GOK and GRK blocked the H2O2-induced phosphorylation of Cx43 and ERK1/2 in WB-F344 cells. Quercetin alone attenuated the H2O2-mediated ERK1/2-Cx43 signalling pathway and consequently reversed H2O2-mediated inhibition of GJIC in WB-F344 cells. A free radical-scavenging assay using 1,1-diphenyl-2-picrylhydrazyl showed that the scavenging activity of quercetin was higher than that of a synthetic antioxidant, butylated hydroxytoluene, per mol, suggesting that the chemopreventive effect of quercetin on H2O2-mediated inhibition of ERK1/2-Cx43 signalling and GJIC may be mediated through its free radical-scavenging activity. Since the carcinogenicity of reactive oxygen species such as H2O2 is attributable to the inhibition of GJIC, GOK, GRK and quercetin may have chemopreventive potential by preventing the inhibition of GJI
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