Search results for "key"
showing 10 items of 1962 documents
Shanghai Teachers’ Perceptions of Distributed Leadership: Resources and Agency
2021
Purpose:Drawing on distributed leadership and motivation theories, this study investigates teachers’ perceptions of resource and agency distributions and identifies the key factors motivating leadership among teachers.Design/Approach/Methods:This quantitative study collected data from 327 teachers in nine schools in Shanghai. Chi-square tests of independence were conducted to examine the associations between leadership structures and power distance, while Spearman’s correlation tests were used to identify changes in leadership resource impact. A nonparametric Friedman’s test was applied to detect discrepancies between the agency of principals, team leaders, and teachers. Finally, Chi-square…
THE ROLE OF ONTOLOGICAL LEARNING LEVELS IN DEVELOPING DYNAMIC CAPABILITIES
2018
This paper explores the links between the fields of dynamic capabilities and organisational learning (OL), emphasising the role of the different ontological learning levels. The resource-based view (RBV) is pinpointed as the key origin of the dynamic capabilities view (DCV), in connection with OL and knowledge management. Ontological learning levels are identified as key OL stages. The knowledge-based view (KBV) of the firm is introduced as a key link between OL processes and dynamic capabilities development. Specifically, we propose a novel and integrative framework for understanding the role that the RBV, the DCV, OL, and the KBV, have, in an inter-connected way, have played in achieving …
Vertical relationships for the European railway industry
2001
Abstract A key question in the reform process of Europe's railway industry is the decision whether to opt for a market structure that vertically integrates infrastructure and operations, or for one that separates them. In making this decision, knowledge of the relationship between operating costs and the infrastructure is fundamental. For this purpose a translogarithmic cost function is estimated, including the multi-product nature of railway companies and a measurement of the value of the infrastructure. The results show that costs deriving from freight transport and from the infrastructure are complementary, while those deriving from passenger transport and from the infrastructure are sub…
Rehabilitation approach in robot assisted total knee arthroplasty: an observational study
2023
Abstract Background The purpose of this study is to evaluate the impact of total knee arthroplasty (TKA) with the aid of Navio Robot, comparing it with standard prosthetic surgery on the functional outcomes of patients after an intensive rehabilitation program. Method A case–control observational study was conducted on patients undergoing TKA for severe KOA. All patients underwent the same intensive hospital rehabilitation program of 14 daily sessions lasting 3 h. The following rating scales were administered: Numeric Rating Scale (NRS), Knee Society Score (KSS) and 12-Item Short Form Survey scale. Patient assessments were performed 1 week post-surgery (T0), 1 month post-surgery (T2), and 3…
Registros de sanguijuelas de Costa Rica y clave para la identificación de las especies con redescripción de Cylicobdella costaricae Records of leeche…
2012
En contraste con los enormes esfuerzos realizados por caracterizar la fauna y flora de Costa Rica, con excepción de algunos registros aislados, muy poco se sabe sobre las sanguijuelas (Annelida: Clitellata) en este país. En este trabajo, presentamos la redescripción de una especie terrestre muy poco conocida: Cylicobdella costaricae, caracterizando su morfología externa e interna; esta última se mantenía completamente desconocida hasta la fecha. Adicionalmente, presentamos la primera lista de especies de sanguijuelas para Costa Rica con un total de 12 taxones registrados en las 7 provincias del país. Se incluye una breve descripción de su morfología, fotografías y localidades para cada taxó…
L'abrogazione della protezione umanitaria nella legge n. 132 del 2018 e il diritto di asilo costituzionale
2019
Abstract The repeal of humanitarian protection in law 132/2018 and the constitutional right to asylum by Carla Negri The article analyzes the humanitarian protection news contained in the law 132/2018. The changes introduced pose some interpretive problems on the tem- poral effects of the repeal of humanitarian protection and their impact on the right to asylum under article 10.3 of the Italian Constitution. The paper focuses, in particular, on the relationship between humanitarian protection and the right to asylum, highlighting the need for the intervention of the Italian Constitutional Court, in order to participate in the construction of a common European right of asylum.
A Maximizing Hydraulic Radius (MHR) method for defining cross-section limits in rills and ephemeral gullies
2021
Abstract In this paper, a new method for determining the cross-section limits in rills and ephemeral gullies is proposed. This method is based on the estimate of the actual depth ha of each cross-section, which is the particular depth distinguishing the channel from the hillslope areas. The analysis showed that the actual depth corresponds to a particular bank slope sta occurring for the maximum value of the hydraulic radius R. The method was applied using a volumetric approach for calculating the hydraulic radius as the ratio between the volume of the whole investigated channel and its boundary lateral surface. The value of the bank slope st was derived by the DEM of the whole channel late…
Comparison of Studies on Mobile Phone Use and Risk of Tumors
2010
published results of ameta-analysis of studies on mobile phone use and risk of tumors. Intheir analysis, the authors included 23 case-control studies, covering abroad spectrum of tumor entities including uveal melanoma, testicu-lar cancer, parotid gland tumors, and brain tumors.However, the authors give no rationale for pooling these hetero-geneous, biologically rather diverse cancer sites, for which the local-ized exposure from the use of mobile phones is completely different.The key difference between this particular meta-analysis com-pared with earlier ones is the use of a quality score. The use of qualityscoreshasbeenreportedtobea“formofsubjectivitymasqueradingasobjectivity”andithasbeen…
Semi-automatic Quasi-morphological Word Segmentation for Neural Machine Translation
2018
This paper proposes the Prefix-Root-Postfix-Encoding (PRPE) algorithm, which performs close-to-morphological segmentation of words as part of text pre-processing in machine translation. PRPE is a cross-language algorithm requiring only minor tweaking to adapt it for any particular language, a property which makes it potentially useful for morphologically rich languages with no morphological analysers available. As a key part of the proposed algorithm we introduce the ‘Root alignment’ principle to extract potential sub-words from a corpus, as well as a special technique for constructing words from potential sub-words. We conducted experiments with two different neural machine translation sys…
Solubility and pH of bioceramic root canal sealers: A comparative study
2017
Background This study compared the solubility and the pH of different root canal sealers in vitro. Material and Methods BioRoot™RCS, TotalFill BC Sealer, MTA Fillapex, SealapexTM, AH Plus, EasySeal, Pulp Canal Sealer™ and N2 were tested. Similar specimens were prepared using ring molds with an internal diameter of 20 ± 0,1 mm and a height of 1,5 ± 0,1 mm and digitally weighted to register the mass of each specimen before and after immersion in distilled water. Solubility was determined after 24 hours and statistically analysed using a one-way ANOVA test and post-hoc Tukey test. The pH value was measured by a digital pH meter after 3 and 24 hours from manipulation. Results BioRoot™RCS and To…