152 research outputs found
Recommended from our members
A classification model of the lean barriers and enablers: a case from Brazilian healthcare
Lean is widely known as an approach to improve the process, reducing wastes and adding value to the customer. However, around 70% of the lean projects fail during its journey, this situation is related to barriers and enablers to implement lean projects. Thus, this paper aims to analyse and classify lean barriers and enablers into an organizational model. The methodology is based on systematic literature review as well as a case study. The paper presents a classification model into seven organizational aspects as well as propositions related to patient’s behaviour and the public healthcare system
Optical carrier wave shocking: detection and dispersion
Carrier wave shocking is studied using the Pseudo-Spectral Spatial Domain
(PSSD) technique. We describe the shock detection diagnostics necessary for
this numerical study, and verify them against theoretical shocking predictions
for the dispersionless case. These predictions show Carrier Envelope Phase
(CEP) and pulse bandwidth sensitivity in the single-cycle regime. The flexible
dispersion management offered by PSSD enables us to independently control the
linear and nonlinear dispersion. Customized dispersion profiles allow us to
analyze the development of both carrier self-steepening and shocks. The results
exhibit a marked asymmetry between normal and anomalous dispersion, both in the
limits of the shocking regime and in the (near) shocked pulse waveforms.
Combining these insights, we offer some suggestions on how carrier shocking (or
at least extreme self-steepening) might be realised experimentally.Comment: 9 page
Recommended from our members
Teamworking and Lean revisited: a reply to Carter et al
This paper is a reply to Carter et al.’s response to an earlier paper of ours in this journal on the subject of teamworking under Lean in the UK public services . Our reply covers the following issues which Carter et al. have raised: the literature we used to structure our findings; the way in which we used concepts such as autonomy and teamworking; our research methods and approach; how Carter et al.’s newly available data on teamworking might be interpreted; and how data drawn from an official employee attitude survey might best be understood. On the basis of this, we conclude that Carter et al.’s paper fails to meet its objectives. On some things, the authors are simply wrong; on others, they grossly misrepresent our position; on still others, their interpretations are, at best, highly questionable
Uncomfortable truths - teamworking under lean in the UK
A recent contribution in this journal – Procter, S. and Radnor,
Z. (2014) ‘Teamworking under Lean in UK public services: lean
teams and team targets in Her Majesty’s Revenue and Customs
(HMRC)’ International Journal of Human Resource Management,
25:21, 2978–2995 – provides an account of teamworking
in the UK Civil Service, specifically Her Majesty’s Revenue
and Customs (HMRC), focused on the relationship between
recently implemented lean work organisation and teams and
teamworking. Procter and Radnor claim in this work that it
delivers a ‘more nuanced’ analysis of lean in this government
department and, it follows, of the lean phenomenon more
generally. Our riposte critiques their article on several grounds.
It suffers from problems of logic and construction, conceptual
confusion and definitional imprecision. Methodological
difficulties and inconsistent evidence contribute additionally
to analytical weakness. Included in our response are empirical
findings on teamworking at HMRC that challenge Procter and
Radnor’s evidential basis and further reveal the shortcomings
of their interpretation
Recommended from our members
Fresh perspectives on customer experience
Purpose
– The purpose of this paper is to provide directions for future research on: broadening the role of customers in customer experience; taking a practice-based approach to customer experience; and recognizing the holistic, dynamic nature of customer experience across all touch points and over time.
Design/methodology/approach
– The approach is conceptual identifying current gaps in research on customer experience.
Findings
– The findings include a set of research questions and research agenda for future research on customer experience.
Originality/value
– This research suggests fresh perspectives for understanding the customer experience which can inspire future research and advance theory and managerial practice
Carrier-wave steepened pulses and gradient-gated high-order harmonic generation using linear ramp waveforms
We show how to optimize the process of high-harmonic generation (HHG) by
gating the interaction using the field gradient of a driving pulse with a
linear ramp waveform. Since maximized field gradients are efficiently generated
by self-steepening processes, we first present a generalized theory of optical
carrier-wave self-steepened (CSS) pulses. This goes beyond existing treatments,
which only consider third-order nonlinearity, and has the advantage of
describing pulses whose wave forms have a range of symmetry properties.
Although a fertile field for theoretical work, CSS pulses are difficult to
realize experimentally because of the deleterious effect of dispersion. We
therefore consider synthesizing CSS-like profiles using a suitably phased
sub-set of the harmonics present in a true CSS wave form. Using standard
theoretical models of HHG, we show that the presence of gradient-maximized
regions on the wave forms can raise the spectral cut-off and so yield shorter
attosecond pulses. We study how the quality of the attosecond bursts created by
spectral filtering depends on the number of harmonics included in the driving
pulse.Comment: 8 pages, 10 figures; with appendix not present in published versio
Recommended from our members
Beyond the ostensible: an exploration of barriers to lean implementation and sustainability in healthcare
The barriers to implement lean have been well researched and have generated consistent results; this study identifies these as ostensible barriers. There is a dearth of research that focus on understanding the causes of these ostensible barriers. Thus, this study aims to empirically investigate the deeper causes that produce ostensible barriers to implement lean in emergency areas of the healthcare. To achieve this aim, the paper draws on rich, qualitative data from four different sources of data, using exploratory case studies as the main approach. Undertaking thematic analysis, six main underlying barriers emerge as the root cause of ostensible barriers. The results suggest that addressing each of the underlying barriers in healthcare is likely to support lean implementation and sustainability, by reducing the impact of restraining forces that come from stakeholders and the public healthcare system
Positional training demands in the English Premier League and EnglishChampionship. A longitudinal study across consecutive seasons
The aims of this study were to: compare training loads between the English Premier League (EPL)
and English Championship League (ECL) and examine differences between playing positions. Forty-six 1st team
players from the same club participated in the study. GPS metrics were obtained during all EPL and ECL training
sessions across four consecutive seasons, 2019–20 to 2022–23. The study team was promoted from the ECL at
the end of season 2020–21. There was a significant interaction effect between position and league for all GPS
metrics (p < 0.001; η2 = 0.001–0.003), except for relative high-speed running (HSR) distance, sprint distance,
and sprint efforts (p > 0.05). A significant main effect for league for all GPS metrics (p < 0.001; η2 = 0.001–0.009)
was found, with EPL training sessions resulting in greater total distance per minute, HSR distance per minute, high
metabolic load distance (HMLD) per minute, number of HML efforts, accelerations, and decelerations per minute
compared to training in the ECL (p < 0.001; d = 0.061–0.224). For position, a significant main effect for all GPS
metrics (p < 0.001; η2 = 0.001–0.005) was observed. Centre midfielders covered more distance per minute than
all other positions (p < 0.001, d = 0.040–0.167). In conclusion, higher training values in the EPL were evident,
except for centre forwards, providing some guidance on the differing positional physical demands that may support
coaches and practitioners to design position-specific drills incorporating physical and technical/tactical strategiesinfo:eu-repo/semantics/publishedVersio
- …