Forecast accuracy of existing luminance-related spectral sky models and their practical implications for the assessment of the non-image-forming effectiveness of daylight

2021 ◽  
pp. 147715352098226
Author(s):  
AK Diakite-Kortlever ◽  
M Knoop

This paper analyses the forecast accuracy of current state-of-the-art, data-driven, spectral sky models. The aim is threefold: (i) to determine the forecast accuracy of existing spectral sky models based on a large dataset of spatially, spectrally and temporally resolved measurements, (ii) to investigate the practical implications of spectral forecast accuracies for the assessment of spectrally selective responses (here non-image-forming effects are expressed through melanopic irradiance) and (iii) to study if the use of spectral sky models is more appropriate to predict the non-image-forming effectiveness of daylight than the currently assumed CIE standard illuminant D65. The forecast analysis for CIE Standard Overcast Skies (CIE Sky Type 3) showed that the model published by Chain and colleagues in 1999 performed best, whereas the correlated colour temperature distribution can also be represented with the CIE standard illuminant D65. The analysis showed substantial discrepancies in the forecast for clear skies with low luminance turbidity (CIE Sky Type 12) depending on the correlated colour temperature range. Our findings suggest that for CIE 12 skies, even when simulating with the best performing spectral sky model, forecast inaccuracies affect the estimated non-image-forming effectiveness. Nonetheless, the assumption that the spectral distribution of daylight from a CIE 12 sky corresponds with the CIE standard illuminant D65 underestimates the non-image-forming effectiveness to a greater extent. The results advance the understanding of spectral characteristics of daylight and suggest that considering realistic spectral distributions instead of D65 will lead to a difference in the non-image-forming effectiveness assessment.

2015 ◽  
Vol 43 (2) ◽  
pp. 76-83
Author(s):  
Jenny Raubenheimer ◽  
John Stephen van Niekerk

Purpose – The purpose of this paper is to review interlending development in South Africa and current trends in interlending. Design/methodology/approach – Literature study and survey. Findings – Interlending is still an essential service in South Africa. Interlending systems must be used effectively to ensure rapid delivery of requested interlibrary loans. There is a significant use of WorldShare ILL, but there is a scope for substantial development. Research limitations/implications – This is not a comprehensive study but focusses on current interlending activities at some of the larger South African academic and special libraries and the use of Online Computer Library Centre systems. Practical implications – The paper provides some historical information and the extent of current interlending and systems used. Social implications – The paper gives an indication of the value of interlending in South Africa and its contribution to information provision. Originality/value – The paper provides a snapshot of interlending in South Africa and areas for development.


2021 ◽  
Vol ahead-of-print (ahead-of-print) ◽  
Author(s):  
Nataliia A. Lytvyn ◽  
Olena V. Artemenko ◽  
Svitlana S. Kovalova ◽  
Maryna P. Kobets ◽  
Elena V. Kashtan (Grygorieva)

Purpose The purpose of this paper is to study the administrative and legal mechanisms of combating corruption, namely, to determine the means by which it is possible to develop a positive experience in the fight against corruption. Design/methodology/approach Among the methods used to study the problems of the stated subject, the dialectical, comparative-legal, systems, historical and legal, formal and legal, analysis and synthesis can be distinguished. Findings The authors investigated the experience of foreign countries in combating corruption and suggested implementing international experience in national legislation for the successful fight against corruption. In the course of the study, the current state of legal regulations governing anti-corruption activities was characterised, corruption and the main reasons for committing corruption acts were investigated, the problems that arise in the fight against corruption were identified, the main administrative and legal mechanisms for combating corruption were established and the effectiveness of applying these mechanisms in practice was studied. Practical implications The provisions that are enshrined in this paper are of practical value for individuals whose activities are aimed at fighting corruption, as Ukraine is one of the states where corruption flourishes and where the fight against corruption has not been directly implemented in practice for many years. Originality/value Based on the example of international experience in the fight against corruption, proposals and recommendations for improving administrative and legal mechanisms for combating corruption have been developed.


Author(s):  
Eliza Maciejewska

Abstract This case study identifies and examines interactional practices of non-directive play therapists during their therapeutic sessions with autistic adolescents. The study involved two therapists and two adolescents (siblings) on the autism spectrum. The video-recorded sessions took place at participants’ home and were conducted in Polish. Employing insights and tools from discourse-analytic approaches, in particular conversation analysis (CA), the findings show how clients and therapists are both involved in co-constructing therapeutic interactions by orienting to each other’s utterances. CA is presented in this article as a useful tool for recognizing and describing the therapists’ interactional contributions and their local functions. The therapeutic practices identified in the analysis (talk-in-practice) – e.g. mirroring, meaning expansion, recast and scaffolding – are further juxtaposed with theories concerning interactional practices in non-directive therapies (talk-in-theory) in order to provide a more detailed picture of these practices as well as complete them. The findings from this study expand the current state of knowledge of non-directive play therapies of autism spectrum disorder (ASD) and carry practical implications for specialists involved in ASD treatment.


2021 ◽  
Vol ahead-of-print (ahead-of-print) ◽  
Author(s):  
JJ Pionke

PurposeThis article presents a secondary analysis of previously published data in order to drive discussion of the library profession’s current state of preparedness in working with patrons with disabilities.Design/methodology/approachThis article used a secondary analysis of survey data that have been previously published to determine what the continuum of data said about the current state of preparedness in the profession when working with people with disabilities.FindingsA comparison of the data from both surveys reveals that there are not only gaps in library graduate school education related to disability and accessibility but also that those gaps are not being addressed through professional development and staff training after students enter the workforce.Research limitations/implicationsThis was a secondary analysis of data, so no new data could be added. There was also no representation from library graduate school administration.Practical implicationsAn awareness is built that there needs to be more instruction for library graduate students and library employees on topics related to disability, accessibility and assistive technologies.Originality/valueThe topic has never been studied before in this kind of continuum of data, and the use of the secondary analysis of data with the library and information science profession is exceedingly rare.


2016 ◽  
Vol 8 (6) ◽  
pp. 670-676 ◽  
Author(s):  
Jorge Costa ◽  
Silva Carvalho

Purpose This paper aims to identify the current state of the Portuguese tourism, its opportunities and challenges based on the conclusions of the International Tourism Forum (ITF)/Worldwide Hospitality and Tourism Themes (WHATT) Round Table attended by representatives of the main public and private entities of the tourism sector in Portugal. Design/methodology/approach This paper presents and discusses the main conclusions resulting from the ITF/WHATT Round Table. The event was organized by the Institute for Tourism Planning and Development, under the theme “Tourism in 2016: from trends to results”. Findings The ITF/WHATT Round Table concluded that the tourism industry worldwide and in Portugal, in particular, is facing major challenges that call for innovative ways of managing the tourism experience. On the other hand, world tourism growth was seen as a reality that will remain, and destinations will have to continue working to achieve better tourists instead of getting more tourists. Practical implications This analysis provides knowledge about the current state of the Portuguese tourism, its challenges and opportunities while identifying innovative ways and likely solutions to improve the experience of tourists visiting Portugal. Originality/value The profiling of the current state of the Portuguese tourism, its opportunities and challenges contributes to the design of more effective strategies to improve the Portuguese tourist offer and the experience of tourists visiting Portugal.


2018 ◽  
Vol 46 (4) ◽  
pp. 21-27 ◽  
Author(s):  
Vladyslav Biloshapka ◽  
Oleksiy Osiyevskyy

Purpose Defines clear steps for growth planning that support answers to the crucial question: How and where are you planning to scale up the business and what talent do you need to implement this? Design/methodology/approach As the “Business model value matrix” shows, having ‘happy customers’ is only one determinant of a business model’s success. The other essential block of diagnostic questions deals with the current state and prospects of the firm’s growth. Findings We found that companies that have found ways to keep their business models in a winner’s state can provide clear, evidence-based answers to questions about growth opportunities and risks, while their less successful peers have difficulty addressing the issues. Continuous collecting and analyzing of this information allows successful companies to embrace the strategy-as-learning model of development, built around active learning and proactive adjustment to evolving environment. Practical implications To develop a strategy for moving to and sustaining the Winner state, managers must clearly articulate and test a set of hypotheses about the mechanisms of their company’s growth. The first step on this path is related to obtaining a clear view on the factors that underpin the current financial performance. Originality/value High-performance cultures make sure that each manager has the clear answers to the questions of value, growth and digitization in order to learn, experiment and implement the company business model agenda. The unproductive cultures, on the other hand, are sustained by managerial teams that usually do not have the answers to these crucial questions, but are very good at political games.


2018 ◽  
Vol 18 (2) ◽  
pp. 73-79 ◽  
Author(s):  
Melissa Bone ◽  
Gary Potter ◽  
Axel Klein

Purpose The purpose of this paper is to introduce the special issue on Illicit Cannabis Cultivation in a Time of Policy Change. Design/methodology/approach The paper reviews some of the different adaptations made by cannabis growers in countries where cannabis has not been legalised. Findings Cannabis growers are adjusting to different legal settings by focusing on home production. Participation in cultivation is a crime, but can also be activism: an effort to change the law. Medical use of cannabis is a particularly important driver here. Having to break the law to alleviate symptoms and treat illnesses provides both a greater sense of urgency and a level of sympathy not usually granted to illicit drug users. Practical implications Grass-roots advocacy may drive policy change. Originality/value This is an original assessment of current state of knowledge on cannabis cultivation in countries where cannabis cultivation remains restricted.


Author(s):  
Neeta Baporikar

Professional schools typically build their raison d'être on the mission of developing knowledge that can be translated into skills that advance the practice of the professions. On the other hand practitioners fail to adopt the findings of research in fields be it medicine, management or engineering. Further, knowledge created is not always in the usage mode, that too in real life practical situation. Action scientists focused on the characteristics and behaviors of researchers to explain this lack of implementation of research knowledge. Identifying the major gaps between scientific knowledge and actual knowledge transfer issues is crucial in today's scenario. Hence, the purpose of this chapter is to identify knowledge transfer issues, discuss the issues and advancements therein, and highlight practical implications of relating theory to practice with focus on management discipline. The issues discussed herein are not only of utmost importance but crucial for understanding, given the current state of management education, organizational science and knowledge management practices.


2019 ◽  
Vol 31 (2) ◽  
pp. 143-165 ◽  
Author(s):  
Päivi Hökkä ◽  
Katja Vähäsantanen ◽  
Susanna Paloniemi ◽  
Sanna Herranen ◽  
Anneli Eteläpelto

Purpose Although there has been an increase in workplace studies on professional agency, few of these have examined the role of emotions in the enactment of agency at work. To date, professional agency has been mainly conceptualised as a goal-oriented, rational activity aimed at influencing a current state of affairs. Challenged by this, this study aims to elaborate the nature and quality of emotions and how they might be connected to the enactment of professional agency. Design/methodology/approach Data are collected in the context of a leadership coaching programme that aimed to promote the leaders’ professional agency over the course of a year. The participants (11 middle-management leaders working in university and hospital contexts) were interviewed before and after the programme, and the data were analysed using qualitative content analysis. Findings Findings showed that emotions played an important role in the leaders’ enactment of professional agency, as it pertained to their work and to their professional identity. The study suggests that enacting professional agency is by no means a matter of purely rational actions. Practical implications The study suggests that emotional agency can be learned and enhanced through group-based interventions reflecting on and processing one’s own professional roles and work. Originality/value As a theoretical conclusion, the study argues that professional agency should be reconceptualised in such a way as to acknowledge the importance of emotions (one’s own and those of one’s fellow workers) in practising agency within organisational contexts.


2016 ◽  
Vol 32 (11) ◽  
pp. 31-34 ◽  
Author(s):  
Frank C. Butler ◽  
John A. Martin

Purpose This paper aims to examine the automotive industry and how it ripe for disruption. By examining the current state of the industry and how technology will shape the future of the car, this paper outlines why the automotive industry is ready to be disrupted and provides insights as to whom the major players may be in the future and why. Design/methodology/approach This paper uses examples from companies and the media to identify how the automotive industry is ready to be disrupted. Findings This paper identifies that the automotive industry is ready to be disrupted. With Tesla having secured over 400,000 pre-orders for its new Model 3 sedan, there is a movement that will pave the way to a new era of the automobile. Practical implications This paper demonstrates that a new way of thinking is needed for top managers at traditional automakers. In this paper, a new way of thinking about the future of the car is presented. Originality/value This paper takes a new perspective on what the future of the automobile may resemble and the companies that will likely be involved as a result of the disruption in the industry.


Sign in / Sign up

Export Citation Format

Share Document