The stronger, the better? A natural experiment on the effects of pepper spray concentration levels

2020 ◽  
Vol ahead-of-print (ahead-of-print) ◽  
Author(s):  
Rémi Boivin ◽  
Caroline Tanguay

PurposeOleoresin capsicum (OC) spray has proven to be a relatively effective tool to subdue resistant or aggressive subjects without causing major and permanent injuries. Several products are available to law enforcement organizations and sprays with higher concentrations are sold as more effective, despite the lack of empirical evidence. This article aims to test the proposition that more concentrated OC sprays are more effective in a policing context.Design/methodology/approachTo test this proposition, retrospective data on police interventions that had occurred (N = 1,019) were used. Concentrations were divided in three levels: level 1 sprays (containing up to 0.49% of major capsaicinoids), level 2 sprays (from 0.5% to 0.99%) and level 3 sprays (between 1 and 1.33%). Propensity scores were calculated to estimate the average effect of concentration level on effectiveness, while controlling for confounding factors.FindingsLevel 1 and level 2 sprays were found to be similar in terms of effectiveness, but level 3 sprays were found to be more likely to have an immediate effect but were also related to higher chances that decontamination was needed after use.Originality/valueWhile several studies of the effectiveness of OC spray in general have been conducted in the past, this is one of the few to differentiate types of OC sprays according to their concentration level. As such, it aims to provide guidance to police organizations who must choose among a variety of products.

2021 ◽  
Vol ahead-of-print (ahead-of-print) ◽  
Author(s):  
Wray Bradley ◽  
Li Sun

Purpose The purpose of this study is to examine the relation between managerial ability and fair value inputs (measured as fair value intensity) for nonfinancial firms. Design/methodology/approach This study uses regression analysis to investigate the impact of managerial ability on the level of fair value inputs. Findings This study finds significant and positive relations between managerial ability and use of Level 1 and Level 2 fair value inputs. On the other hand, this study finds an insignificant relation between managerial ability and Level 3 inputs. Originality/value The findings contribute to two research streams. To the best of the author’s knowledge, this is perhaps the first study that directly examines the link between managerial ability and fair value inputs.


2015 ◽  
Vol 19 (6) ◽  
pp. 1295-1309 ◽  
Author(s):  
Shiva Yahyapour ◽  
Mehdi Shamizanjani ◽  
Mohammad Mosakhani

Purpose – The paper aims to foster a better understanding of knowledge management (KM) benefits by integrating the qualitative findings of prior research under a multilayer conceptual framework. Design/methodology/approach – A meta-synthesis approach was conducted by adopting “Noblit and Hare’s” seven-step method. Findings – A breakdown structure for KM benefits which encompasses 3 “macro benefits” at Level 1, 7 “benefits” at Level 2 and 44 “micro benefits” at Level 3. Research limitations/implications – The main limitation is that this research does not provide criteria and measures to assess the benefits of KM. Practical implications – Organizations which intend to invest in KM can obtain a better insight about outcomes and benefits of implementing KM initiatives. This study will provide those organizations which have already invested in KM with some ideas to evaluate their KM efforts qualitatively. Originality/value – Based on available data, this study is the first of its kind that has identified the benefits of KM in three layers. Also, the number of KM benefits identified in this study is greater than that of any previous research.


2011 ◽  
Vol 113 (4) ◽  
pp. 550-576 ◽  
Author(s):  
Hsin‐I Hsiao ◽  
Ron G.M. Kemp ◽  
Jack G.A.J. van der Vorst ◽  
S.W.F. (Onno) Omta

PurposeThis paper aims to investigate outsourcing of different types of logistics activities in Taiwanese food industry, and benchmark with practices in The Netherlands.Design/methodology/approachThe outsourcing of four levels of logistics activities is investigated: transportation (level 1), packaging (level 2), transportation management (level 3), and distribution network management (level 4). A structured questionnaire was designed and sent to logistics managers in The Netherlands and Taiwan to evaluate the most commonly outsourced activities and identify specific outsourcing firm's characteristics.FindingsAbout 69 per cent of the companies, in both countries outsource level 1 activities, 16 per cent level 2, and 37 per cent level 3 activities. Only few companies (about 10 per cent) outsource the highest level of activities. In particular, The Netherlands has higher percentages for levels 1 and 3. This might be caused by the fact that most Taiwanese companies emphasise low cost whereas the Dutch companies focus on flexibility in order to deal with higher complexities. When intentions for the future are included, Taiwan is planning to outsource level 2 (40 per cent) and level 4 activities (36 per cent) much more than The Netherlands (respectively 13 and 17 per cent). When zooming in, it was found that outsourcing strategies of companies in the subsectors differ. For instance, the dairy sector outsources more frequently than the meat sector on the first three levels. This might be caused by the fact that meat companies emphasise food quality, whereas dairy companies emphasise flexibility and reliability.Research limitations/implicationsThis study investigated only food processors. The paper suggests further research should include other types of food organisations.Originality/valueThe paper provides valuable insights in outsourcing strategies of food processing companies in Taiwan and The Netherlands for advanced logistics service providers who are looking at the market potential of Taiwan.


2020 ◽  
Vol 46 (8) ◽  
pp. 1001-1022 ◽  
Author(s):  
Steve Fortin ◽  
Ahmad Hammami ◽  
Michel Magnan

PurposeThis study examines the long-term link between fair valuation uncertainty and discounts/premia in closed-end funds. This study argues that, in exploring the close-end funds puzzle, prior research generally omits to consider the uncertainty surrounding the measurement of funds' financial disclosure, as reflected in the fair value hierarchy, when investment specialty differs across funds.Design/methodology/approachRegressions were employed to explore how the fair value hierarchy affects closed-end funds' discounts/premia when investment specialty differs. The authors also examine the effects pre- and post-2012 to explore if that relationship changes due to the additional disclosure requirements enacted at the end of 2011.FindingsThe authors find that the three levels of the fair value hierarchy have effects that vary according to a fund's specialty. For equity specialized funds, Level 3 significantly increases discounts and decreases premia, suggesting the impact of valuation uncertainty that underlies Level 3 estimates; this relationship disappears (decreases in severity) for premia (discount) experiencing funds post-2012. In contrast, Level 1 and Level 2 do not have any significant effect on discounts or premia except that post-2012, Level 2 begins to display discount decreasing effects. For bond specialized funds, no significant association was noted between premia and any of the fair value levels except that post-2012, Level 3 begins to display premium increasing effects. However, results are different for discounts. The authors note that Level 1 valuations significantly increase discounts, but only post-2012; Level 2 valuations significantly decrease discounts (pre- and post-2012), consistent with such estimates incorporating unique and relevant information; and Level 3 valuations do not have a significant effect on discounts.Originality/valueThe results of this study revisit prior evidence and indicate that results about the effects of fair value measurement and the closed-end funds' puzzle are sensitive to the period length being considered and the investment specialty of the fund. The authors also note that additional disclosure regarding Level 3 valuation inputs decreases market concern for valuation uncertainty and increases the liquidity benefits of investing in Level 3 carrying funds.


RELC Journal ◽  
2018 ◽  
Vol 50 (3) ◽  
pp. 422-438
Author(s):  
Anna Chang ◽  
Sonia Millett ◽  
Willy Ardian Renandya

Although second language listening has become a rather active area of research in the past ten years, some topics such as listening fluency development and extensive listening (EL) have not received much attention. The purpose of the present study is to examine the levels of listening support that might be needed to facilitate L2 learners’ listening fluency development. Sixty-nine EFL college students completed a full intervention through one of the three modes: (1) listening only (LO), (2) reading only (RO), and (3) reading while listening plus listening only (RLL). Ten level-1, 10 level-2 and 8 level-3 (audio) graded readers were used as the study materials within three 13-week periods. Listening tests were given before the intervention (pre-test) and after they finished each level of the texts (post-tests 1, 2 and 3). The research questions addressed effect sizes of the scores’ changes from the pre-test to each of the post-tests in each group on their comprehension of practised and unpractised texts. The results show that in comprehending the practised texts, the LO and RLL groups could comprehend the more complicated texts at faster speech rates and also maintain higher levels of comprehension. When listening to the unpractised texts, the RLL group could do as well as they did on the practised texts, but the LO group could process the more difficult texts at faster speech rates without decreasing their comprehension levels. As predicted, the RO group performed poorly on the tests. Pedagogical implications for facilitating the effectiveness of extensive listening practice are discussed.


2015 ◽  
Vol 1 (1) ◽  
pp. 2-11 ◽  
Author(s):  
Rebecca Ledingham ◽  
Richard Mills

Purpose – The purpose of this paper is to explore the association of cybercrime, autistic spectrum conditions and international law enforcement, the past decade having seen a significant growth in reported cybercrimes involving autistic individuals. Design/methodology/approach – Interest in the profile of autism and cybercrime and the pathways whereby such offences are committed is shared by key law-enforcement agencies worldwide. This was explored by literature review and survey. Findings – The authors identified a presence of persons with Autism Spectrum Disorders but no empirical evidence to suggest a prevalence or an over representation of autistic individuals committing cybercrime offences. At present profiling, pathways, and recording is under developed. Research limitations/implications – Paucity of literature on cybercrime and autism. Awareness of autism within law-enforcement agencies and the absence of key diagnostic and other data from the cross-section of agencies surveyed. Practical implications – Improve detection, diversion, profiling, risk and pathways into cybercrime. Social implications – Better prediction of risk of cybercrime and improved responses. Originality/value – Original paper believed to be the first to look at cybercrime and ASD in the context of international law enforcement.


Author(s):  
Lania Muharsih ◽  
Ratih Saraswati

This study aims to determine the training evaluation at PT. Kujang Fertilizer. PT. Pupuk Kujang is a company engaged in the field of petrochemicals. Evaluation sheet of PT. Fertilizer Kujang is made based on Kirkpatrick's theory which consists of four levels of evaluation, namely reaction, learning, behavior, and results. At level 1, namely reaction, in the evaluation sheet is in accordance with the theory of Kirkpatrick, at level 2 that is learning should be held pretest and posttest but only made scale. At level 3, behavior, according to theory, but on assessment factor number 3, quantity and work productivity should not need to be included because they are included in level 4. At level 4, that is the result, here is still lacking to get a picture of the results of the training that has been carried out because only based on answers from superiors without evidence of any documents.   Keywords: Training Evaluation, Kirkpatrick Theory.    Penelitian ini bertujuan mengetahui evaluasi training di PT. Pupuk Kujang. PT. Pupuk Kujang merupakan perusahaan yang bergerak di bidang petrokimia. Lembar evaluasi PT. Pupuk Kujang dibuat berdasarkan teori Kirkpatrick yang terdiri dari empat level evaluasi, yaitu reaksi, learning, behavior, dan hasil. Pada level 1 yaitu reaksi, di lembar evaluasi tersebut sudah sesuai dengan teori dari Kirkpatrick, pada level 2 yaitu learning seharusnya diadakan pretest dan posttest namun hanya dibuatkan skala. Pada level 3 yaitu behavior, sudah sesuai teori namun pada faktor penilaian nomor 3 kuantitas dan produktivitas kerja semestinya tidak perlu dimasukkan karena sudah termasuk ke dalam level 4. Pada level 4 yaitu hasil, disini masih sangat kurang untuk mendapatkan gambaran hasil dari pelatihan yang sudah dilaksanakan karena hanya berdasarkan dari jawaban atasan tanpa bukti dokumen apapun.   Kata kunci: Evaluasi Pelatihan, Teori Kirkpatrick.


Atmosphere ◽  
2021 ◽  
Vol 12 (7) ◽  
pp. 869
Author(s):  
Xiuguo Zou ◽  
Jiahong Wu ◽  
Zhibin Cao ◽  
Yan Qian ◽  
Shixiu Zhang ◽  
...  

In order to adequately characterize the visual characteristics of atmospheric visibility and overcome the disadvantages of the traditional atmospheric visibility measurement method with significant dependence on preset reference objects, high cost, and complicated steps, this paper proposed an ensemble learning method for atmospheric visibility grading based on deep neural network and stochastic weight averaging. An experiment was conducted using the scene of an expressway, and three visibility levels were set, i.e., Level 1, Level 2, and Level 3. Firstly, the EfficientNet was transferred to extract the abstract features of the images. Then, training and grading were performed on the feature sets through the SoftMax regression model. Subsequently, the feature sets were ensembled using the method of stochastic weight averaging to obtain the atmospheric visibility grading model. The obtained datasets were input into the grading model and tested. The grading model classified the results into three categories, with the grading accuracy being 95.00%, 89.45%, and 90.91%, respectively, and the average accuracy of 91.79%. The results obtained by the proposed method were compared with those obtained by the existing methods, and the proposed method showed better performance than those of other methods. This method can be used to classify the atmospheric visibility of traffic and reduce the incidence of traffic accidents caused by atmospheric visibility.


2018 ◽  
Vol 19 (2) ◽  
pp. 19-23
Author(s):  
Brian Rubin ◽  
Adam Pollet

Purpose The purpose of this paper is to analyze the Financial Industry Regulatory Authority’s (FINRA) 2017 disciplinary actions, the issues that resulted in the most significant fines and restitution and the emerging enforcement trends from 2017 and beyond. Design/methodology/approach The approach of this paper discusses the disciplinary actions in 2017 and prior years, details the top 2017 enforcement issues measured by total fines assessed, including anti-money laundering, trade reporting, electronic communications, books and records, research analysts and research reports, and explains current enforcement trends, including restitution, suitability cases and technological issues. Findings In 2017, restitution more than doubled from the prior year, resulting in the fourth highest total sanctions (fines combined with restitution and disgorgement) assessed by FINRA over the past 10 years. Practical implications Firms and their representatives should heed the trends in both the substantial restitution FINRA is ordering and the related enforcement issues in the cases FINRA has brought. Originality/value This paper provides expert analysis and guidance from experienced securities enforcement lawyers.


2020 ◽  
Vol 10 (1) ◽  
pp. 115-124
Author(s):  
Chunchun Wang

PurposeThe purpose of this paper is to examine the transformations of prosthetic practices in China, as well as the daily experiences and dilemmas arising from the everchanging practices since 1949. On the basis of materials, this paper explores an everyday perspective to review the history of technology.Design/methodology/approachEthnography was collected with the application of participant observations, informal interviews and in-depth interviews during a 13-months study at a rehabilitation center in Chengdu, China. The literature on prosthetic manufacturing was also reviewed for this paper.FindingsChina's prosthetic technology seems to evolve from traditional to modern. However, this progressive narrative – innovation-based timeline (Edgerton, 2006, xi) – has been challenged by daily practices. Due to institutional pressures, prosthetists are in a dilemma of selectively using their knowledge to create one kind of device for all prosthesis users with a certain kind of disability, thereby regulating the physical and social experiences of prosthesis users. Besides, prosthesis users are accustomed to prostheses made with old techniques, and must correct themselves from old experiences to the daily practices recognized by the selected techniques.Originality/valueThis paper provides a cross-cultural case to reexamine Edgerton's criticism of the progressive and orderly innovation-centric technological narrative. More importantly, it reviews the history and practices of China's prosthetics from daily experiences rather than Edgerton's concentration on technology; therefore, it provides an everyday perspective for future research on technological transformations.


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