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We show that Padé approximants considerably improve convergence of Adomian's decomposition. The power of the method proposed is demonstrated through two illustrative examples from the field of nonlinear optics.

This study aims to examine the relationship between neutrophil to lymphocyte ratio (NLR), handgrip strength (HGS) and nutritional status in non-critically ill patients and outpatients.

A cross-sectional study was conducted on 80 geriatric patients. Nutritional status was evaluated using the Mini Nutritional Assessment Short Form, Geriatric Nutritional Risk Index, some anthropometric and biochemical parameters. NLR was calculated from the complete blood count results. Data were analyzed using SPSS 24.0.

While 38.3% of patients were malnourished or at risk of malnutrition, 61.7% had normal nutritional status. Mini Nutritional Assessment Short Form was not correlated with NLR, whereas it showed a weak positive correlation with HGS. According to the logistic regression analysis, age, HGS, hemoglobin and platelet to lymphocyte ratio were significant independent factors for predicting malnutrition or risk of malnutrition. The receiver operator characteristic curve analysis showed that the optimum HGS cut-off point for patients with malnourished or at risk of malnutrition was 13.2. In conclusion, HGS was associated with the nutritional status. NLR was not associated with nutritional status but associated with nutritional risk.

It is well known that malnutrition is a serious health problem among older adults, and it is important to assess the nutritional status of older adults because of the adverse health effects. In addition, to the best of the authors’ knowledge, this is the first study to determine the relationship between NLR, HGS and nutritional status in non-critically ill patients and outpatients.

This case study identifies factors influencing the implementation of e‐learning within the Australian Army training context.

A grounded theory approach was used to gain an understanding of the concerns of stakeholders involved in e‐learning implementation. This research included interviews with Army managers, course developers, instructional designers and instructors.

The main factors that were important for respondents involved in e‐learning management, design, development and delivery could be identified. This case study demonstrates the importance of maintaining focus on organisational priorities and learning goals while meeting the demands of change pressures.

This is an initial study to gain an overview of the main issues. More research will be required to understand the Army's e‐learning context and to confirm these findings. Further research will include other stakeholders, including trainees' perspectives and extend to other Army sites.

For effective implementation there needs to be a process of continual adaptation and alignment of e‐learning to reflect changing demands while meeting the priorities of the organisational culture and learners' needs.

This paper analyses the first independent external research into e‐learning in the Australian Army. Although this is a specialised context for e‐learning, the issues raised in this case study will inform research into other workplace e‐learning projects.

This paper aims to present a case study of some current disorders affecting the stone‐panels of façade claddings, i.e. cracking, spalling close to anchorage systems and staining. The purpose of this study is to identify the origin of the mechanical and chemical disorders of the carbonate rock thin panels of the “Les Chênes 1” building of the University of Cergy‐Pontoise (France).

Mapping of the disorders, anchorage system investigation at spallings, chemical analyses of oil‐like stains were performed in order to characterize both disorders. Porosity and capillarity properties of the rock were measured and compared between samples collected outside and within a stain.

Mechanical disorders result from vandalism or poor implementation. Spallings are disorders very likely in evolution. Their occurrence may increase through time. Stains are made of silicone destabilization products.

A model is proposed for the formation of oil‐like stains. Water is required to destabilize silicone sealant and to drive the migration of the degradation products through the porous media and towards the surface of the plate exposed to rainfall.

Examines the practice of overbooking at hotel and tour operator levels. By accepting more reservations than their available capacity, hotels hedge against the problem of cancellations. Hotels located in popular tourist resorts, allocate their capacity to multiple tour‐operators who through the vacation packages they offer, fill the hotels’ capacity. Shows that for this type of hotel, an overbooking policy applied at the hotel level and derived using the capacity of the hotel as a whole, gives better cost savings than when formulating an overbooking policy for each tour‐operator separately. The result of the analysis provides significant managerial implications since a hotel dealing with multiple tour‐operators, in devising its overbooking policy needs only to consider the occupancy of the hotel as a whole and not the performance of each tour‐operator. This simplicity is further reflected in the reduction of information required to be recorded.

The purpose of this study is to investigate the changes that have taken place in consumer behavior due to the fear, caused by the spread of the coronavirus, in parallel to studying how supermarket activities have changed during the pandemic.

Using qualitative methods (email interviews and document analysis) and utilizing the few statistics available for the case, the authors performed a comparison between Greece, a country that imposed an early lockdown, and Sweden, which, for its own political reasons, did not lock down, but took other measures instead.

Differences in consumer behavior and supermarket activities in both countries based on different mentalities and different experiences were identified. Similarities in consumer behavior, but with different motives, were also discovered.

Retailing practitioners and communication executives can apply the findings to manage sales in a time of sharp, unpredictable crisis. The paper aims at integrating existing literature for the academic community and contributes with implications for practitioners and policymakers to reduce crisis risks.

This paper is one of the first to explore changes in consumer behavior caused by the spread of the coronavirus. It provides a coherent and comprehensive understanding of how consumer behavior changes under fear-crisis conditions along with future research directions.

This chapter extends the univariate forecasting method proposed by Wang, Luc, and Hsiao (2013) to forecast the multivariate long memory model subject to structural breaks. The approach does not need to estimate the parameters of this multivariate system nor need to detect the structural breaks. The only procedure is to employ a VAR(k) model to approximate the multivariate long memory model subject to structural breaks. Therefore, this approach reduces the computational burden substantially and also avoids estimation of the parameters of the multivariate long memory model, which can lead to poor forecasting performance. Moreover, when there are multiple breaks, when the breaks occur close to the end of the sample or when the breaks occur at different locations for the time series in the system, our VAR approximation approach solves the issue of spurious breaks in finite samples, even though the exact orders of the multivariate long memory process are unknown. Insights from our theoretical analysis are confirmed by a set of Monte Carlo experiments, through which we demonstrate that our approach provides a substantial improvement over existing multivariate prediction methods. Finally, an empirical application to the multivariate realized volatility illustrates the usefulness of our forecasting procedure.

To the Editor. Dear Sir, In your issue of September 10 was an article by Dr P. B. Walker under the above title. This article appears to have been induced by some suggestions put forward in an editorial in your February issue that reinforced plastics might well repay study for use in pressure cabin construction.