bluuebunny/crossref_metadata_2025_split huggingface dataset:
A model of projects as a source of stress at work
Authors: Darling Eric John , Whitty Stephen Jonathan 
Published: July 2019

PurposeThe purpose of this paper is to describe the relationship between project work and stress. It examines how the conditions of project work negatively impact on an individual’s mental and physical state of well-being, consequentially reducing organisational performance.Design/methodology/approachThe authors systematically review the project management literature for sources of stress or stressors as it relates to Cooper and Marshall’s (1976) model of stress at work. The authors perform a thematic analysis on these stressors to reveal the “sub-stressor” conditions of project work.FindingsA “model of projects as a source of stress at work” is developed. It shows the relationship between the sub-stressors of project work and the ill effects they have on mental and physical well-being of the project workforce.Research limitations/implicationsThe findings of this study are constrained by the limits of a literature review process. This study has implications for research on stress in project work, as studies can benefit from the “model of projects as a source of stress at work”, which can be continually advanced to gain insights on the minimisation of physical and mental distress.Practical implicationsMany sectors including health, education, policing, aviation and military provide scenario-based training. In project management, a greater understanding of stressful scenarios and counter measures would improve health outcomes for project staff, human relations and project outcomes.Originality/valueThe study presents a comprehensive model of projects as a source of stress at work. It draws attention to the burden and cost of anxiety and stress placed on the project workforce. It makes the case for organisations and employees to take responsibility for the well-being of project staff.
Variety perception and attitude toward digital assortments
Authors: Piris Yolande , Guibert Nathalie 
Published: July 2019

Purpose
The purpose of this paper is to investigate consumers’ variety perception for online grocery assortments and, more generally, to better understand consumers’ attitude toward digital assortments. In particular, this research examines the influence of the organization of products that results from assortment structure and display.

Design/methodology/approach
Starting from the observation that previous work on traditional assortments is not sufficient to understand consumers’ perceptions and attitudes, the paper adopts a hypothetico-deductive approach and develops four hypotheses. These hypotheses are tested using an experimental approach.

Findings
This research enables us to see that both attitude and variety perception are affected by the way products are organized on a website. Furthermore, contrary to what the literature on traditional assortments allows one to assume, the assortment corresponding to a more positive attitude is not perceived as being the more varied. As a result, our findings reconsider the link between variety perception and consumer assortment evaluation for digital assortments.

Research limitations/implications
The work is based on data collected for only one product category. It would be interesting to explore other categories also, to determine if the structure of the assortment and variety perception have stable effects.

Practical implications
The results inform retailers that they must carefully design the display of their digital assortments. If a retailer wants to enhance variety perception, the authors recommend using an assortment organized by brand, or presenting all the products together. If, instead, the goal is to encourage a positive attitude, the retailer should opt for assortments sorted by attribute or that present all products together.

Originality/value
This research adopts a new orientation on assortment perception and evaluation, considering the specificities involved in digitizing assortments. In addition, this research studies a real product category and puts respondents in experimental conditions close to reality.
Institutionalising emergent organisation in health and social care
Authors: Allen D. 
Published: July 2019

Purpose
The purpose of this paper is to argue for the institutionalisation of emergent forms of organisation in health and social care and offer a conceptual framework for this purpose.

Design/methodology/approach
Drawing on ethnographic research on the organising work of nurses and Translational Mobilisation Theory, this paper extends two classic Straussian sociological concepts – illness trajectory and articulation work – to conceptualise emergent organisation as Care Trajectory Management.

Findings
Failures of coordination are well-recognised threats to quality and safety and recent decades have witnessed an explosion of neoliberal technologies and governance arrangements designed to “measure and manage” these risks. Yet in a significant and growing proportion of health and social care provision successful service integration depends not on rational planning, but iterative negotiations and adjustments in response to contingencies. While ubiquitous in health and social care systems, these emergent forms of organisation lack legitimacy, the work involved is relatively invisible and practice is poorly served by prevailing management discourses.

Originality/value
The Care Trajectory Management Framework provides an alternative discourse and logic on which to develop strategies and technologies to support emergent organisational processes in acute and community care contexts.
Behavioural and operational outcomes of a Master’s programme on improvement knowledge and leadership
Authors: Nordin Annika Maria Margareta , Areskoug-Josefsson Kristina 
Published: July 2019

Purpose
The purpose of this paper is to evaluate behavioural changes and operational outcomes resulting from a Master’s programme on improvement knowledge and leadership in the Swedish welfare sector. The welfare sector is the collective term for tax-funded services the state, county councils and municipalities are responsible to provide.

Design/methodology/approach
A survey combined open-ended and closed questions using a five-point Likert scale. The questions were based on the learning objectives of the Master’s programme. The survey was sent to 139 graduates and achieved a response rate of 41 per cent (57 respondents). Responses were entered into a survey programme to enable the descriptive presentation of data; open-ended responses were analysed using conventional content analysis.

Findings
Respondents reported their increased knowledge and changed behaviours had impacted operational outcomes, e.g. processes efficiency, compliance with guidelines and quality. They said the programme was of value to themselves and society but requested more leadership knowledge. All respondents recommended the programme to others.

Originality/value
By operationalizing the Kirkpatrick framework, the paper describes outcomes on levels three and four, and the use of numerous best practice techniques for adult learning. This is valuable knowledge for organisers of improvement knowledge educations.
Empty container movements arising from cargo seasonality: Turkish terminals
Authors: Basarici Ahmet Selcuk , Satir Tanzer 
Published: July 2019

PurposeThe purpose of this study is to reveal the magnitude of empty container movements (ECM) arising from cargo seasonality by means of long-term datasets of Turkish terminals. Trade imbalance is one of the well-known major reasons of ECM. Cargo seasonality apart from some other operational drivers and market effect, i.e. commercial decisions of the ship operators, is the major operational driver in Turkish terminals effecting ECM. Furthermore, this study highlights the significance of market effect, leading to take measures for more effective empty container operations in terms of decision makers leading the ship operators.Design/methodology/approachTime series analysis of full container datasets was performed through X-13ARIMA-SEATS methodology, implementing seasonal adjustment.FindingsThe results indicate that 17 of 112 time series in hand, based on a terminal/hinterland, container type and “in and out” foreign trade, exhibit cargo seasonality. Roughly, the amount of ECM originating from cargo seasonality in Turkish terminals represents 10 per cent of total ECM except trade imbalance in those terminals where seasonality is present. This reveals that ECM arising from market effect should not be underestimated.Research limitations/implicationsReefer container traffic could not be sorted from the datasets.Originality/valueThis paper focuses on one of the major reasons of ECM, cargo seasonality. It brings a novel point of view and interpretations which were not suggested previously about ECM, motivating to overcome inefficiency in container operations.
Individual cultural orientation as a determinant of psychological contract fulfilment
Authors: Rao Bramhani , Kunja Sambashiva Rao 
Published: July 2019

Purpose
The purpose of this paper is to explore the role of individualism-collectivism (IC) in determining psychological contract fulfillment (PCF) at individual level, thus attempting to establish that cultural orientation of each individual may differentially predict the fulfillment of his/her psychological contract.

Design/methodology/approach
Structural equation modeling was conducted on the cross-sectional data collected from 465 IT professionals working at different multi-national software companies.

Findings
Model fit between the dimensions of IC and PCF was found to be good, indicating a significantly positive relationship between within-culture cultural orientation of an individual and his/her perception of PCF. The analyses revealed that collectivist beliefs, values and norms have a significant relationship with the perception of delivery, fairness and trust toward PCF. The relationship between collectivist values and fairness of the deal was found to be insignificant.

Research limitations/implications
A major theoretical implication of the study is its contribution to evidence that people with collectivist orientation have a relatively positive perception toward the fulfillment of a psychological contract between them and the employer. It also clarifies why employees working in the same work environment tend to develop unique psychological contracts owing to their tendency to orient toward a particular cultural state of mind in the form of beliefs, values and norms guiding their day-to-day work-life.

Originality/value
The study is a valuable addition to the current literature in two ways. First, it contributes to the area of personality by examining the individual cultural orientation as an individual difference predictor of PCF. This helps in understanding the role of differences in emotions, cognition and behavior among individuals in predicting the fulfillment of hidden expectations of employees. In the domain of psychological contract, it contributes to evidence that explains why employees in same job conditions and employment relationships experience breach or fulfillment owing to their difference in cultural orientation.
Alternative functional strategies and altered carbon pathways facilitate broad depth ranges in coral‐obligate reef fishes
Authors: MacDonald Chancey , Bridge Tom C. L. , McMahon Kelton W. , Jones Geoffrey P. 
Published: July 2019

Abstract

Spatial refuges in peripheral habitats will become increasingly important for species persistence as climate change and other disturbances progressively impact habitat quality and assemblage compositions. However, the capacity for persistence will be determined in part by species‐specific abilities to absorb costs related to altered or decreased quantities and quality of resources at range peripheries.

We compared variations in dietary strategies and energy acquisition trade‐offs along depth gradients in two obligate corallivores that differ in level of diet specialization. We also assessed depth‐related changes in energy pathways and energy content of their mixotrophic prey. We found no changes in feeding effort or total resource availability (total coral cover) towards deep range margins, but availability of the preferred resource (Acropora coral) decreased. While both species selectively targeted Acropora, the more specialized species (Chaetodon baronessa) exhibited limited feeding plasticity along the depth gradient. The degree of selectivity towards the preferred coral increased rather than decreased with depth, being 40 times greater than expected, given availability, at their range periphery. In contrast, the generalist's diet (Chaetodon octofasciatus) varied greatly in response to changes in resource availability with depth.

Unexpectedly, the energy content of Acropora did not decline with depth, likely due to increased coral heterotrophy in deeper water, indicated by shifts in their molecular isotope geochemistry. This shift was accompanied by a 20% increase in plankton‐sourced carbon in the muscle tissue of deep‐resident fish, despite no observations of direct feeding on plankton food sources.

Our results indicate that deep ranges in coral‐obligate reef fishes are supported by multiple mechanisms of trophic versatility in both the fish and corals. This nutritional plasticity likely serves a compensatory role in the resilience and eventual adaptation of organisms at their range peripheries.

For species vulnerable to increasing anthropogenic impacts at range cores, variable and multi‐trophic functional responses can act to buffer against costs and increase the refuge potential of range peripheries. Specialist consumers may also be supported indirectly at range margins via trophic plasticity within their preferred prey.

A free Plain Language Summary can be found within the Supporting Information of this article.
Hypoxic pulmonary vasoconstriction is lacking in rats with type 1 diabetes
Authors: Soloviev Anatoly , Ivanova Irina , Melnyk Mariia , Dobrelia Nataliia , Khromov Alexander 
Published: July 2019

AbstractHypoxic pulmonary vasoconstriction (HPV) is the most important feature of intact lung circulation that matches local blood perfusion to ventilation. The main goal of this work was to study the effects of diabetes on the development of HPV in rats. The experimental design comprised diabetes mellitus induction by streptozotocin, video‐morphometric measurements of the lumen area of intrapulmonary arteries (iPAs) using perfused lung tissue slices and patch‐clamp techniques. It was shown that iPA lumen size was significantly reduced under physical and chemical hypoxia (7–10 mm Hg) in normal iPA, but, on the contrary, it clearly increased in diabetic lung slices. The amplitude of the outward K+ current in diabetic iPAs smooth muscle cells (SMCs) was two‐fold greater than that seen in healthy cells. Chemical hypoxia led to significant decrease in the amplitude of the K+ outward current in healthy iPA SMCs while it was without effect in diabetic cells. The data obtained clearly indicate a significant dysregulation of vascular tone in pulmonary circulation under diabetes, ie diabetes damages the adaptive mechanism for regulating blood flow from poorly ventilated to better ventilated regions of the lung under hypoxia. This effect could be clinically important for patients with diabetes who have acute or chronic lung diseases associated with the lack of blood oxygenation.
Embracing and Harnessing the Intimate Connection Between Emotion and Cognition to Help Students Learn
Authors: Schmidt Shelly J. 
Published: July 2019

AbstractTraditionally, cognition and emotion were believed to be independent systems; however, research in the cognitive and neurobiological sciences has shown that the relationship between cognition and emotion is both interdependent and extensive. This intimate connection between emotion and cognition is leading to a number of insights that have the potential to inform and transform educational practices at all levels—from the classroom to the curriculum to educational policy. The question that has been on my mind (and on my heart) is, as a teacher, how can I both embrace and harness the power of emotion to help my students’ learning be more meaningful, useful, and intrinsically motivated? In this article, I would like to share with you some of the effective practices that I have implemented in my classroom and how I have worked to intentionally embed the emotional aspect of learning into the framework of the courses I teach.
Effect of pH and Salinity on the Production of Extracellular Virulence Factors by Aeromonas from Food Sources
Authors: John Nifty , Vidyalakshmi V.B. , Hatha A.A. Mohamed 
Published: July 2019

AbstractThe ability to produce various extracellular enzymes is considered as an important virulence feature inAeromonasspp., in addition to producing specific virulence factors such as aerolysin and hemolysin. In this study, the effect of salinity and pH on the production of extracellular virulence factors byAeromonaswas investigated.Aeromonaswas obtained from different food sources. A comparative study of the activities of extracellular enzymes secreted by these bacteria at different environmental conditions can widen our understanding on their pathogenicity. The activities of various extracellular enzymes such as amylase, gelatinase, and caseinase, which are implicated as virulence factors, were measuredin vitroby calculating the enzymatic activity index (EAI) of each enzyme using standard laboratory protocols. For all enzymes, a significant change (P< 0.05) in the EAI was observed when the concentration of NaCl in the media increased from 0.5% to 3%. Among three enzymes tested, caseinase was found to be affected the most by salinity, with a significant difference in EAI when NaCl concentration in the media increased from 0.5% to 2%. Similarly, amylase was found to be affected the most by acidity. The pH values ranging from 6 to 9 did not exert any significant change in EAI of amylase; however, a pH value of 5 had a significant effect. Overall, compared to salinity, the change in pH was found to be less effective in controlling the extracellular virulence factor production inAeromonas.Practical ApplicationsThe practical application is to minimize the extracellular virulence factor production byAeromonasin food commodities by altering the salt content and pH. The results demonstrate that an increase in salinity and a decrease in pH can minimize the extracellular virulence factor production byAeromonasspp.
Antioxidant Profile of 1‐Monocaffeoyl Glycerol in Lipophobic/Lipophilic Media
Authors: Weng Longmei , Li Lin , Ji Lili , Zhao Di , Xu Zhenbo , Su Jianyu , Li Bing , Zhang Xia 
Published: July 2019

AbstractOxidative stress has been generally considered as one trigger of organism imbalance, resulting in lipid peroxidation, DNA damage and protein oxidation, which could be relieved by antioxidant supplement or endogenous antioxidant system. In present study, 1‐monocaffeoyl glycerol (1‐MCG), an amphipathic caffeic acid natural derivative, was enzymatically synthesized by Lipozyme 435, and its antioxidant profile in both lipophilic and lipophobic media was evaluated. The 1‐MCG was identified by HPLC‐UV, HPLC‐ESI‐MS, and 1H/13C‐NMR. Subsequently, antioxidant assays in lipophilic (DPPH assay) and lipophobic (ABTS, ORAC, erythrocyte hemolysis, ROS, MDA, and GPx assays) systems were explored. The better and lasting DPPH· and ABTS+· inhibitions of 1‐MCG than caffeic acid (CA) were related to its better solubilities in ethanol/water media and electron transfer ability. ORAC results suggested the radical scavenging activities of 1‐MCG (5 to 40 µM) were higher than Trolox. Furthermore, the effectiveness of 1‐MCG against AAPH‐induced erythrocytes oxidation indicated that 1‐MCG can effectively inhibit hemolysis. ESEM was also applied to verify the hemolysis inhibition and morphology preservation abilities of 1‐MCG. Besides, results showed 1‐MCG was able to prevent ROS from invasion, reduce production of MDA, up‐regulated GPx activity, terminate lipid peroxidation, and maintain the integrity of the structure and function of erythrocytes.Practical ApplicationAs an amphiphilic caffeic acid derivative, 1‐monocaffeoyl glycerol was synthesized, purified, and identified. 1‐Monocaffeoyl glycerol could significantly eliminate radicals including DPPH·, ABTS+·, and AAPH in ethanol, water, and PBS system, respectively. 1‐Monocaffeoyl glycerol could protect erythrocyte from AAPH induced hemolysis.
Subanesthetic ketamine infusions for the management of pediatric pain in non‐critical care settings: An observational analysis
Authors: Masaracchia Melissa M. , Sites Brian D. , Lee Justin , Thomas James J. , Fernandez Patrick G. 
Published: July 2019

BackgroundGuidelines issued by the American Society of Regional Anesthesia and Pain Medicine suggest that ketamine infusions for acute pain management are advantageous as a primary treatment or as an opioid adjunct. Despite significant data regarding its use in adult patients, there remains a paucity of information related to its quality and side effect profile in pediatrics and how it can be effectively used. We aimed to summarize our practice of utilizing ketamine for pediatric pain management in non‐critical care settings.MethodsPatients aged 0‐21 years receiving low‐dose ketamine infusions (≤0.3 mg/kg/hour) in inpatient care units over five years were retrospectively analyzed. Demographics, specific quality metrics, and side effects were quantified.ResultsAbout 172 patients received 270 subhypnotic ketamine infusions. The median duration of the infusions was 63.8 hours and 0.2 mg/kg/hour for the highest dose. The primary indication for ketamine was chronic pain exacerbation (83.3%). Despite similar opioid consumption, there was a significant reduction in mean verbal pain scores before (8.9 ± 1.9, P < .001) and after ketamine (6.5 ± 2.7, P < .001) use. Although there were 52 incidences of some side effect (neurologic excitability [10.4%]; over‐sedation [7.4%]; rapid response team alerts [1.1%]), none resulted in termination of the infusion or escalations in care.ConclusionKetamine can effectively be used as part of a multimodal analgesic regimen in pediatric patients in non‐critical care settings. Our five‐year experience using low‐dose ketamine infusions highlights an acceptable side effect profile, with no attributable escalations in care or serious adverse events.