scholarly journals The professionalization of educators in science museums and centers

2008 ◽  
Vol 07 (04) ◽  
pp. C02
Author(s):  
Lynn Uyen Tran

Explainers have a longstanding presence in science museums and centres, and play a significant role in the institutions’ educational agenda. They interact with the public, and help make visitors’ experiences meaningful and memorable. Despite their valuable contributions, little research attention has been paid to the role and practice of these individuals. From the limited research literature that does exist, we know that museum educators employ a complexity of skills and knowledge. We also know such educators have a variety of experiences and qualifications – this creates a rich diversity within the field. Finally we know that the content and quality of programmes designed to educate novice explainers vary across institutions. Should we work toward a shared identity across institutions? Or even a “professionalization”? The paper explores the state of the art of the discussion around that questions.

2021 ◽  
Vol ahead-of-print (ahead-of-print) ◽  
Author(s):  
Jorge Armando López-Lemus

Purpose The purpose of this paper is to identify the influence exerted by a quality management system (QMS) under ISO 9001: 2015 on the quality of public services organizations in Mexico. Design/methodology/approach The methodological design was quantitative, explanatory, observational and transversal, for which a sample of 461 public servants from the state of Guanajuato, Mexico was obtained. To test the hypotheses, a structural equation model (SEM) was developed through the statistical software Amos v.21. For the analysis of the data, software SPSS v.21 was used. Regarding the goodness and adjustment indices of the SEM (χ2 = 720.09, df = 320, CFI = 0.933, TLI = 0.926 and RMSEA = 0.05) which, therefore, proved to be acceptable. Findings According to the results obtained through the SEM model, the QMS under ISO 9001: 2015 is positively and significantly influenced tangible aspects (β1 = 0.79, p < 0.01), reliability (β2 = 0.90, p < 0.01), related to response quality (β3 = 0.93, p < 0.01), guarantees (β4 = 0.91, p < 0.01) and empathy (β5 = 0.88, p < 0.01) of the quality related to public services in Mexico. The study’s key contribution is that it discovered that implementing a QMS in accordance with the ISO 9001: 2015 standard has an impact on the quality of public services, with the most influential quality of response. Similarly, the assurance and dependability of service quality turned out to be important in providing public service quality. Research limitations/implications In this paper, the QMS was only evaluated as a variable that intervenes in the process of obtaining quality in public service under the ISO 9001 standard in its 2015 version. In this regard, the results’ trustworthiness is limited to the extent that the findings may be generalized in the state of Guanajuato, Mexico’s public service. As a result, the scientific community is left primarily focused on service quality to promote new future research. Practical implications The ISO 9001: 2015 standard’s QMS is one of the tools for success in both the commercial and government sectors. However, there are practical limitations, which focus on the time during which managers exercise their vision in the public sector: first, the dynamics that managers play in public policy; second, the length of time they have served in public office; and third, the interest of directors of public institutions to improve the quality of service provided by the government. Other practical consequences concern organizational culture and identity, public servant commitment, senior management or secretaries of government, as well as work and training. Originality/value The findings of this paper are important and valuable because they foster knowledge generation in the public sector through the ISO 9000 quality area. A model that permits the adoption and implementation of a QMS based on the ISO 9001: 2015 standard in public organizations that seek to provide quality in their services offered to the user is also presented to the literature. Similarly, the paper is important because there is currently insufficient research focusing on the variables examined in the context of public service in Mexico.


2017 ◽  
Vol 9 (3) ◽  
pp. 58-72 ◽  
Author(s):  
Guangyu Wang ◽  
Xiaotian Wu ◽  
WeiQi Yan

The security issue of currency has attracted awareness from the public. De-spite the development of applying various anti-counterfeit methods on currency notes, cheaters are able to produce illegal copies and circulate them in market without being detected. By reviewing related work in currency security, the focus of this paper is on conducting a comparative study of feature extraction and classification algorithms of currency notes authentication. We extract various computational features from the dataset consisting of US dollar (USD), Chinese Yuan (CNY) and New Zealand Dollar (NZD) and apply the classification algorithms to currency identification. Our contributions are to find and implement various algorithms from the existing literatures and choose the best approaches for use.


Author(s):  
Huan Vu ◽  
Samir Aknine ◽  
Sarvapali D. Ramchurn

Traffic congestion has a significant impact on quality of life and the economy. This paper presents a decentralised traffic management mechanism for intersections using a distributed constraint optimisation approach (DCOP). Our solution outperforms the state of the art solution both for stable traffic conditions (about 60% reduced waiting time) and robustness to unpredictable events. 


2017 ◽  
Vol 2 (1) ◽  
pp. 299-316 ◽  
Author(s):  
Cristina Pérez-Benito ◽  
Samuel Morillas ◽  
Cristina Jordán ◽  
J. Alberto Conejero

AbstractIt is still a challenge to improve the efficiency and effectiveness of image denoising and enhancement methods. There exists denoising and enhancement methods that are able to improve visual quality of images. This is usually obtained by removing noise while sharpening details and improving edges contrast. Smoothing refers to the case of denoising when noise follows a Gaussian distribution.Both operations, smoothing noise and sharpening, have an opposite nature. Therefore, there are few approaches that simultaneously respond to both goals. We will review these methods and we will also provide a detailed study of the state-of-the-art methods that attack both problems in colour images, separately.


2019 ◽  
Vol 19 (3) ◽  
pp. 198-203
Author(s):  
Adilet Merkanov ◽  

Nowadays in Kyrgyz Republic take a place huge reforms of prosecutors. The implementation of national projects requires a new quality of prosecutorial oversight so that the human rights and law enforcement potential of the prosecutor’s office really contributes to the development of a democratic rule of law. The prosecutor's office as one of the state legal institutions plays an extremely important role in the public and state life of the Kyrgyz Republic. As you know, the successful implementation of socio-economic and socio-political transformations in the state largely depends on existing laws, the observance of which the prosecutor's office is called upon to monitor.


2018 ◽  
pp. 252-269
Author(s):  
Guangyu Wang ◽  
Xiaotian Wu ◽  
WeiQi Yan

The security issue of currency has attracted awareness from the public. De-spite the development of applying various anti-counterfeit methods on currency notes, cheaters are able to produce illegal copies and circulate them in market without being detected. By reviewing related work in currency security, the focus of this paper is on conducting a comparative study of feature extraction and classification algorithms of currency notes authentication. We extract various computational features from the dataset consisting of US dollar (USD), Chinese Yuan (CNY) and New Zealand Dollar (NZD) and apply the classification algorithms to currency identification. Our contributions are to find and implement various algorithms from the existing literatures and choose the best approaches for use.


Author(s):  
Muhammad Salman Raheel ◽  
Raad Raad

This chapter discusses the state of the art in dealing with the resource optimization problem for smooth delivery of video across a peer to peer (P2P) network. It further discusses the properties of using different video coding techniques such as Scalable Video Coding (SVC) and Multiple Descriptive Coding (MDC) to overcome the playback latency in multimedia streaming and maintains an adequate quality of service (QoS) among the users. The problem can be summarized as follows; Given that a video is requested by a peer in the network, what properties of SVC and MDC can be exploited to deliver the video with the highest quality, least upload bandwidth and least delay from all participating peers. However, the solution to these problems is known to be NP hard. Hence, this chapter presents the state of the art in approximation algorithms or techniques that have been proposed to overcome these issues.


Author(s):  
Mirko Luca Lobina ◽  
Luigi Atzori ◽  
Fabrizio Boi

IP Telephony provides a way for an enterprise to extend consistent communication services to all employees, whether they are in main campus locations, at branch offices, or working remotely, also with a mobile phone. IP Telephony transmits voice communications over a network using open standard-based Internet protocols. This is both the strength and weakness of IP Telephony as the involved basic transport protocols (RTP, UDP, and IP) are not able to natively guarantee the required application quality of service (QoS). From the point of view of an IP Telephony Service Provider this definitely means possible waste of clients and money. Specifically the problem is at two different levels: i) in some countries, wherelong distance and particularly international call tariffs are high, perhaps due to a lack of competition or due to cross subsidies to other services, the major opportunity for IP Telephony Service Providers is for price arbitrage. This means working on diffusion of an acceptable service, although not at high quality levels; ii) in other countries, where different IP Telephony Service Providers already exist, the problem is competition for offering the best possible quality. The main idea behind this chapter is to analyze specifically the state of the art playout control strategies with the following aims: i) propose the reader the technical state of the art playout control management and planning strategies (overview of basic KPIs for IP Telephony); ii) compare the strategies IP Telephony Service Provider can choose with the aim of saving money and offering a better quality of service; iii) introduce also the state of the art quality index for IP Telephony, that is a set of algorithms for taking into account as many factors as possible to evaluate the service quality; iv) provide the reader with examples on some economic scenarios of IP Telephony.


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