bluuebunny/crossref_metadata_2025 huggingface dataset:
Palinacousis, Palinacousis: Seven New Cases
Authors: Fields Madeline C. , Marcuse Lara V. , Yoo Ji-Yeoun , Ghatan Saadi
Published: September 2017

Purpose:

Palinacousis is an auditory illusion of sound persisting or repeating after the cessation of an auditory stimulation. Up until now, approximately 32 cases have been reported. The purpose of this study is to describe an additional seven cases of palinacousis and review our understanding of audition and palinacousis.

Methods:

Patients seen in the epilepsy clinic or admitted to the Epilepsy Monitoring Unit (EMU) at The Mount Sinai Hospital who experienced palinacousis were included. In all these patients, an EEG and MRI were performed at some point during their clinical course.

Results:

In one case, palinacousis occurred with stimulation of the superior temporal gyrus during brain mapping after a spoken word as well as after the thought of a word. Two people experienced palinacousis during a seizure captured on video EEG. The remaining four cases had palinacousis in the peri- or post-ictal period.

Conclusions:

We propose that palinacousis may be coming from the superior temporal gyrus secondary to seizure activity, either onset or spread, or dysfunction of the area in a postictal state. The existence of palinacousis in these pathologic states can help us to understand how we process auditory information.
Fish face a trade-off between ‘eating big’ for growth efficiency and ‘eating small’ to retain aerobic capacity
Authors: Norin Tommy , Clark Timothy D.
Published: September 2017

Feeding provides the necessary energy to fuel all fitness-related processes including activity, growth and reproduction. Nevertheless, prey consumption and digestive processes can have physical and physiological trade-offs with other critical functions, many of which are not clearly understood. Using an ambush predator, barramundi (Lates calcarifer), fed meals ranging 0.6–3.4% of body mass, we examined interrelations between meal size, growth efficiency and surplus aerobic metabolic capacity (aerobic scope, AS). Large meals required a greater absolute investment of energy to process (a larger so-called specific dynamic action, SDA), but the percentage of digestible meal energy required in the SDA response (SDA coefficient) decreased with increasing meal size. Combined with the findings that growth rate and growth efficiency also increased with food intake, our results demonstrate that it is energetically advantageous for fish to select large prey. However, following a large meal, SDA processes occupied up to 77% of the available AS, indicating that other oxygen-demanding activities like swimming may be compromised while large meals are processed. This trade-off between meal size and AS suggests that fishes like barramundi would benefit from regulating prey size based on imminent requirements and threats.
Determinants of spring migration departure decision in a bat
Authors: Dechmann Dina K. N. , Wikelski M. , Ellis-Soto D. , Safi K. , O'Mara M. Teague
Published: September 2017

Migratory decisions in birds are closely tied to environmental cues and fat stores, but it remains unknown if the same variables trigger bat migration. To learn more about the rare phenomenon of bat migration, we studied departure decisions of female common noctules (Nyctalus noctula) in southern Germany. We did not find the fattening period that modulates departure decisions in birds. Female noctules departed after a regular evening foraging session, uniformly heading northeast. As the day of year increased, migratory decisions were based on the interactions among wind speed, wind direction and air pressure. As the migration season progressed, bats were likely to migrate on nights with higher air pressure and faster tail winds in the direction of travel, and also show high probability of migration on low-pressure nights with slow head winds. Common noctules thus monitor complex environmental conditions to find the optimal migration night.
Complex systems biology
Authors: Ma'ayan Avi
Published: September 2017

Complex systems theory is concerned with identifying and characterizing common design elements that are observed across diverse natural, technological and social complex systems. Systems biology, a more holistic approach to study molecules and cells in biology, has advanced rapidly in the past two decades. However, not much appreciation has been granted to the realization that the human cell is an exemplary complex system. Here, I outline general design principles identified in many complex systems, and then describe the human cell as a prototypical complex system. Considering concepts of complex systems theory in systems biology can illuminate our overall understanding of normal cell physiology and the alterations that lead to human disease.
Improved prediction accuracy for disease risk mapping using Gaussian process stacked generalization
Authors: Bhatt Samir , Cameron Ewan , Flaxman Seth R. , Weiss Daniel J. , Smith David L. , Gething Peter W.
Published: September 2017

Maps of infectious disease—charting spatial variations in the force of infection, degree of endemicity and the burden on human health—provide an essential evidence base to support planning towards global health targets. Contemporary disease mapping efforts have embraced statistical modelling approaches to properly acknowledge uncertainties in both the available measurements and their spatial interpolation. The most common such approach is Gaussian process regression, a mathematical framework composed of two components: a mean function harnessing the predictive power of multiple independent variables, and a covariance function yielding spatio-temporal shrinkage against residual variation from the mean. Though many techniques have been developed to improve the flexibility and fitting of the covariance function, models for the mean function have typically been restricted to simple linear terms. For infectious diseases, known to be driven by complex interactions between environmental and socio-economic factors, improved modelling of the mean function can greatly boost predictive power. Here, we present an ensemble approach based on stacked generalization that allows for multiple nonlinear algorithmic mean functions to be jointly embedded within the Gaussian process framework. We apply this method to mappingPlasmodium falciparumprevalence data in sub-Saharan Africa and show that the generalized ensemble approach markedly outperforms any individual method.
Density of convex intersections and applications
Authors: Hintermüller M. , Rautenberg C. N. , Rösel S.
Published: September 2017

In this paper, we address density properties of intersections of convex sets in several function spaces. Using the concept of
Γ
-convergence, it is shown in a general framework, how these density issues naturally arise from the regularization, discretization or dualization of constrained optimization problems and from perturbed variational inequalities. A variety of density results (and counterexamples) for pointwise constraints in Sobolev spaces are presented and the corresponding regularity requirements on the upper bound are identified. The results are further discussed in the context of finite-element discretizations of sets associated with convex constraints. Finally, two applications are provided, which include elasto-plasticity and image restoration problems.
Can a quantum state over time resemble a quantum state at a single time?
Authors: Horsman Dominic , Heunen Chris , Pusey Matthew F. , Barrett Jonathan , Spekkens Robert W.
Published: September 2017

The standard formalism of quantum theory treats space and time in fundamentally different ways. In particular, a composite system at a given time is represented by a joint state, but the formalism does not prescribe a joint state for a composite of systems at different times. If there were a way of defining such a joint state, this would potentially permit a more even-handed treatment of space and time, and would strengthen the existing analogy between quantum states and classical probability distributions. Under the assumption that the joint state over time is an operator on the tensor product of single-time Hilbert spaces, we analyse various proposals for such a joint state, including one due to Leifer and Spekkens, one due to Fitzsimons, Jones and Vedral, and another based on discrete Wigner functions. Finding various problems with each, we identify five criteria for a quantum joint state over time to satisfy if it is to play a role similar to the standard joint state for a composite system: that it is a Hermitian operator on the tensor product of the single-time Hilbert spaces; that it represents probabilistic mixing appropriately; that it has the appropriate classical limit; that it has the appropriate single-time marginals; that composing over multiple time steps is associative. We show that no construction satisfies all these requirements. If Hermiticity is dropped, then there is an essentially unique construction that satisfies the remaining four criteria.
Using multiple lines of evidence to assess the risk of ecosystem collapse
Authors: Bland Lucie M. , Regan Tracey J. , Dinh Minh Ngoc , Ferrari Renata , Keith David A. , Lester Rebecca , Mouillot David , Murray Nicholas J. , Nguyen Hoang Anh , Nicholson Emily
Published: September 2017

Effective ecosystem risk assessment relies on a conceptual understanding of ecosystem dynamics and the synthesis of multiple lines of evidence. Risk assessment protocols and ecosystem models integrate limited observational data with threat scenarios, making them valuable tools for monitoring ecosystem status and diagnosing key mechanisms of decline to be addressed by management. We applied the IUCN Red List of Ecosystems criteria to quantify the risk of collapse of the Meso-American Reef, a unique ecosystem containing the second longest barrier reef in the world. We collated a wide array of empirical data (field and remotely sensed), and used a stochastic ecosystem model to backcast past ecosystem dynamics, as well as forecast future ecosystem dynamics under 11 scenarios of threat. The ecosystem is at high risk from mass bleaching in the coming decades, with compounding effects of ocean acidification, hurricanes, pollution and fishing. The overall status of the ecosystem is Critically Endangered (plausibly Vulnerable to Critically Endangered), with notable differences among Red List criteria and data types in detecting the most severe symptoms of risk. Our case study provides a template for assessing risks to coral reefs and for further application of ecosystem models in risk assessment.
Voltage-gated sodium channel gene repertoire of lampreys: gene duplications, tissue-specific expression and discovery of a long-lost gene
Authors: Zakon Harold H. , Li Weiming , Pillai Nisha E. , Tohari Sumanty , Shingate Prashant , Ren Jianfeng , Venkatesh Byrappa
Published: September 2017

Studies of the voltage-gated sodium (Nav) channels of extant gnathostomes have made it possible to deduce that ancestral gnathostomes possessed four voltage-gated sodium channel genes derived from a single ancestral chordate gene following two rounds of genome duplication early in vertebrates. We investigated the Nav gene family in two species of lampreys (the Japanese lampreyLethenteron japonicumand sea lampreyPetromyzon marinus) (jawless vertebrates—agnatha) and compared them with those of basal vertebrates to better understand the origin of Nav genes in vertebrates. We noted six Nav genes in both lamprey species, but orthology with gnathostome (jawed vertebrate) channels was inconclusive. Surprisingly, the Nav2 gene, ubiquitously found in invertebrates and believed to have been lost in vertebrates, is present in lampreys, elephant shark (Callorhinchus milii) and coelacanth (Latimeria chalumnae). Despite repeated duplication of the Nav1 family in vertebrates, Nav2 is only in single copy in those vertebrates in which it is retained, and was independently lost in ray-finned fishes and tetrapods. Of the other five Nav channel genes, most were expressed in brain, one in brain and heart, and one exclusively in skeletal muscle. Invertebrates do not express Nav channel genes in muscle. Thus, early in the vertebrate lineage Nav channels began to diversify and different genes began to express in heart and muscle.
Changes in predator exposure, but not in diet, induce phenotypic plasticity in scorpion venom
Authors: Gangur Alex N. , Smout Michael , Liddell Michael J. , Seymour Jamie E. , Wilson David , Northfield Tobin D.
Published: September 2017

Animals embedded between trophic levels must simultaneously balance pressures to deter predators and acquire resources. Venomous animals may use venom toxins to mediate both pressures, and thus changes in this balance may alter the composition of venoms. Basic theory suggests that greater exposure to a predator should induce a larger proportion of defensive venom components relative to offensive venom components, while increases in arms races with prey will elicit the reverse. Alternatively, reducing the need for venom expenditure for food acquisition, for example because of an increase in scavenging, may reduce the production of offensive venom components. Here, we investigated changes in scorpion venom composition using a mesocosm experiment where we manipulated scorpions' exposure to a surrogate vertebrate predator and live and dead prey. After six weeks, scorpions exposed to surrogate predators exhibited significantly different venom chemistry compared with naive scorpions. This change included a relative increase in some compounds toxic to vertebrate cells and a relative decrease in some compounds effective against their invertebrate prey. Our findings provide, to our knowledge, the first evidence for adaptive plasticity in venom composition. These changes in venom composition may increase the stability of food webs involving venomous animals.
Biological and statistical processes jointly drive population aggregation: using host–parasite interactions to understand Taylor's power law
Authors: Johnson Pieter T. J. , Wilber Mark Q.
Published: September 2017

The macroecological pattern known as Taylor's power law (TPL) represents the pervasive tendency of the variance in population density to increase as a power function of the mean. Despite empirical illustrations in systems ranging from viruses to vertebrates, the biological significance of this relationship continues to be debated. Here we combined collection of a unique dataset involving 11 987 amphibian hosts and 332 684 trematode parasites with experimental measurements of core epidemiological outcomes to explicitly test the contributions of hypothesized biological processes in driving aggregation. After using feasible set theory to account for mechanisms acting indirectly on aggregation and statistical constraints inherent to the data, we detected strongly consistent influences of host and parasite species identity over 7 years of sampling. Incorporation of field-based measurements of host body size, its variance and spatial heterogeneity in host density accounted for host identity effects, while experimental quantification of infection competence (and especially virulence from the 20 most common host–parasite combinations) revealed the role of species-by-environment interactions. By uniting constraint-based theory, controlled experiments and community-based field surveys, we illustrate the joint influences of biological and statistical processes on parasite aggregation and emphasize their importance for understanding population regulation and ecological stability across a range of systems, both infectious and free-living.
What drives the spatial distribution and dynamics of local species richness in tropical forest?
Authors: Wiegand Thorsten , May Felix , Kazmierczak Martin , Huth Andreas
Published: September 2017

Understanding the structure and dynamics of highly diverse tropical forests is challenging. Here we investigate the factors that drive the spatio-temporal variation of local tree numbers and species richness in a tropical forest (including 1250 plots of 20 × 20 m
2
). To this end, we use a series of dynamic models that are built around the local spatial variation of mortality and recruitment rates, and ask which combination of processes can explain the observed spatial and temporal variation in tree and species numbers. We find that processes not included in classical neutral theory are needed to explain these fundamental patterns of the observed local forest dynamics. We identified a large spatio-temporal variability in the local number of recruits as the main missing mechanism, whereas variability of mortality rates contributed to a lesser extent. We also found that local tree numbers stabilize at typical values which can be explained by a simple analytical model. Our study emphasized the importance of spatio-temporal variability in recruitment beyond demographic stochasticity for explaining the local heterogeneity of tropical forests.
Major urinary protein levels are associated with social status and context in mouse social hierarchies
Authors: Lee Won , Khan Amber , Curley James P.
Published: September 2017

We have previously shown that male mice living in groups of 12 males establish and maintain stable linear social hierarchies with each individual having a defined social rank. However, it is not clear which social cues mice use to signal and recognize their relative social status within their hierarchy. In this study, we investigate how individual social status both in pairs and in groups affects the levels of major urinary proteins (MUPs) and specifically MUP20 in urine. We housed groups of adult outbred CD1 male mice in a complex social environment for three weeks and collected urine samples from all individuals repeatedly. We found that dominant males produce more MUPs than subordinates when housed in pairs and that the production of MUPs and MUP20 is significantly higher in alpha males compared with all other individuals in a social hierarchy. Furthermore, we found that hepatic mRNA expression ofMup3andMup20is significantly higher in alpha males than in subordinate males. We also show that alpha males have lower urinary creatinine levels consistent with these males urinating more than others living in hierarchies. These differences emerged within one week of animals being housed together in social hierarchies. This study demonstrates that as males transition to become alpha males, they undergo physiological changes that contribute to communication of their social status that may have implications for the energetic demands of maintaining dominance.
CA2 Neuronal Activity Controls Hippocampal Oscillations and Social Behavior
Authors: Alexander Georgia M. , Brown Logan Y. , Farris Shannon , Lustberg Daniel , Pantazis Caroline , Gloss Bernd , Plummer Nicholas W. , Riddick Natallia V. , Moy Sheryl S. , Jensen Patricia , Dudek Serena M.
Published: September 2017

Hippocampal oscillations arise from coordinated activity among distinct populations of neurons and are associated with cognitive functions and behaviors. Although much progress has been made toward identifying the relative contribution of specific neuronal populations in hippocampal oscillations, far less is known about the role of hippocampal area CA2, which is thought to support social aspects of episodic memory. Furthermore, the little existing evidence on the role of CA2 in oscillations has led to conflicting conclusions. Therefore, we sought to identify the specific contribution of CA2 pyramidal neurons to brain oscillations using a controlled experimental system. We used excitatory and inhibitory DREADDs in transgenic mice to acutely and reversibly manipulate CA2 pyramidal cell activity. Here, we report on the role of CA2 in hippocampal-prefrontal cortical network oscillations and social behavior. We found that excitation or inhibition of CA2 pyramidal cells bidirectionally regulated hippocampal and prefrontal cortical low gamma oscillations and inversely modulated hippocampal ripple oscillations. Further, CA2 inhibition impaired social approach behavior. These findings support a role for CA2 in low gamma generation and ripple modulation within the hippocampus and underscore the importance of CA2 neuronal activity in extrahippocampal oscillations and social behavior.
Out-of-Register Aβ42Assemblies as Models for Neurotoxic Oligomers and Fibrils
Authors: Xi Wenhui , Vanderford Elliott K. , Hansmann Ulrich H.E.
Published: September 2017

We propose a variant of the recently found S-shaped Aβ1‒42-motif that is characterized by out-of-register C-terminal β-strands. We show that chains with this structure can not only form fibrils that are compatible with the NMR signals, but also barrel-shaped oligomers that resemble the ones formed by the much smaller cylindrin peptides. Running at physiological temperatures long all-atom molecular dynamics simulations with an explicit solvent, we study the stability of these constructs and show that they are plausible models for neurotoxic oligomers. Analyzing the transitions between different assemblies we suggest a mechanism for amyloid formation in Alzheimer’s disease.
Gene synthesis allows biologists to source genes from farther away in the tree of life
Authors: Kunjapur Aditya M. , Pfingstag Philipp , Thompson Neil C.
Published: September 2017

Gene synthesis allows biologists and bioengineers to create novel genetic sequences and codon-optimize transgenes for heterologous expression. Because codon choice is key to gene expression and therefore cellular outcomes, it has been argued that gene synthesis will allow researchers to source genes from organisms that would otherwise have been incompatible, opening up more-distant parts of the tree of life as sources for transgenes. We test if this hypothesis is true for academic biological research using a 10-year data set from Addgene, the non-profit plasmid repository. We observe ~19,000 unique genes deposited to Addgene and classify them by whether they are natural or synthetic using a nucleotide-only technique that we develop here. We find that synthetic genes are an increasing share of Addgene deposits. Most importantly, we find direct evidence that researchers are using gene synthesis to source genes from more genetically-distant organisms, particularly for genes that are longer and thus might otherwise be particularly challenging to express. Thus, we provide the first empirical evidence that gene synthesis is leading biologists and bioengineers to sample more broadly across the rich genetic diversity of life, increasingly making that functionality available for industrial or biomedical advances.
Structured illumination to spatially map chromatin motions
Authors: Bonin Keith , Smelser Amanda , Salvador Moreno Naike , Holzwarth George , Wang Kevin , Levi Preston , Vidi Pierre-Alexandre
Published: September 2017

We describe a simple optical method that creates structured illumination of a photoactivatable probe and apply this method to characterize chromatin motions in the nuclei of live cells. A laser beam coupled to a diffractive optical element at the back focal plane of an excitation objective generates an array of near diffraction-limited beamlets with FWHM of 340±30 nm, which simultaneously photoactivate a 7x7 matrix pattern of GFP-labeled histones, with spots 1.70 μm apart. From the movements of the photoactivated spots, we map chromatin diffusion coefficients at multiple microdomains of the cell nucleus. The results show correlated motions of nearest chromatin microdomain neighbors, whereas chromatin movements are uncorrelated at the global scale of the nucleus. The method also reveals DNA damage-dependent decrease in chromatin diffusion. The DOE instrumentation can easily and cheaply be implemented on commercial inverted fluorescence microscopes to analyze adherent cell culture models. A protocol to measure chromatin motions in non-adherent human hematopoietic stem and progenitor cells is also described. We anticipate that the method will contribute to the identification of the mechanisms regulating chromatin mobility, which influences most genomic processes and may underlie the biogenesis of genomic translocations associated with hematologic malignancies.
External knowledge sourcing and new product development
Authors: Santoro Gabriele , Vrontis Demetris , Pastore Alberto
Published: September 2017

Purpose

The purpose of this paper is to analyze the role of external knowledge in the innovation process of firms in the food and beverage (F&B) industry and the effects of two external knowledge sourcing modes on new product development (NPD) performance.

Design/methodology/approach

The paper applies a quantitative approach, relying on data from 157 Italian firms operating in the F&B industry to test the hypotheses through OLS regression models.

Findings

Results suggest that the surveyed firms actively engage in open innovation with strong ties with market-based sources. Moreover, the authors found that market-based sources are associated with income from incremental innovation and time to market, while science-based sources are associated with income from radical innovation. Finally, the authors found that the R&D intensity enhances the benefits of the above external knowledge sourcing modes.

Originality/value

Despite the large amount of studies assessing the effects of external knowledge sourcing on performance in the open innovation field, few studies focused on a specific industry, especially with regard to F&B. Moreover, this paper considers different types of NPD performance measures given that different external knowledge sourcing modes exert different effects.
How to strengthen the business model of an Italian family food business
Authors: Giacosa Elisa , Ferraris Alberto , Monge Filippo
Published: September 2017

Purpose

The purpose of this paper is to focus on how a medium-sized company operating in the food sector should strengthen its business model, thanks to a combination between tradition and innovation.

Design/methodology/approach

This research focuses on one case study. The subject of the case study under analysis is Golosità dal 1885, an internationally recognized fine food Italian company.

Findings

Golosità dal 1885 is characterized by a strong combination of tradition and innovation, both in products and processes. The company’s competitiveness is the result of a balanced management of innovation, in respect of the family’s values, thanks to the active presence of two family generations.

Research limitations/implications

This study is characterized for some limitations, related to the method and to the choice of a single case study. In terms of theoretical implications, the study emphasizes the importance of the link between the food sector and the region it is rooted in.

Practical implications

Practical implications relate to different groups of stakeholders: for owners and management, for investors, for organizations and institutions working on a territory promotion and in the tourism sector, and for politicians and local authorities.

Originality/value

The originality of the research is represented by a focusing on how a strategy based on an effective combination between tradition and innovation should increase the competitive advantage, especially in a mature sector – as the food one – characterized by the need to offer a differentiated and innovative range of products and services for overcoming the consumptions crisis.
Resilience after the Deepwater Horizon oil spill
Authors: Buckingham-Howes Stacy , Sreekumar Poorna , Morris Glenn , Grattan Lynn M.
Published: September 2017

Purpose

The purpose of this paper is to examine the extent to which self-reported resilience was associated with mental health outcomes four years after the Deepwater Horizon oil spill (DWHOS).

Design/methodology/approach

Participants included 179 men and women randomly selected from two Northeast Gulf Coast communities as part of a larger, prospective study of behavioral health post oil spill. The majority of the participants were Caucasian (70.8 percent), female (61.5 percent), had a high school education or lower (75.3 percent), and ranged in age from 18 to greater than 60 years old. Participants completed a measure of resilience (Connor-Davidson Resilience Scale, CD-RISC) 2.5 years post oil spill and measures of overall mood disturbance (Profile of Mood States), depression (Beck Depression Inventory), quality of life (World Health Organization Quality of Life-BREF Scale) 4.5 years post oil spill.

Findings

Based upon linear regression analyses, elevated self-reported resilience significantly predicted lower scores on mood disturbance (b=−0.63, p<0.01) and depressive symptoms (b=−0.14, p<0.05) and higher scores on psychological (b=0.08, p<0.01) and overall health quality of life (b=0.08, p<0.01). Factor analysis of the CD-RISC identified three factors (hardiness, adaptability, optimism). Each factor predicted some, but not all, of the outcomes with optimism being the least predictive of mental health.

Originality/value

Self-reported resilience two years after the DWHOS was a useful predictor of mental health outcome four years post-spill. Early assessment may facilitate the identification of individuals at risk of longer-term mental health problems for public health prevention or mental health intervention efforts.
“What should we do?” The after-action review of village heads’ information seeking and decision making during the unprecedented Kaohsiung blast
Authors: Hsu Chiung-wen
Published: September 2017

Purpose

The purpose of this paper is to examine village heads’ information seeking and decision making in 2014 Kaohsiung Blast and to analyze if the current disaster trainings help those leaders to enhance disaster risk deduction in an unprecedented disaster.

Design/methodology/approach

This study adopts after-action review and information seeking and decision making literature both from communication research and disaster research. Document analysis, and in-depth interviews with 13 village heads, 1 district officer, and 15 residents from the affected areas are conducted.

Findings

This study finds that the village heads have received trainings of regular types of disasters; however, most of them act like lay people in Kaohsiung Blast. In the beginning of the gas leaking, village heads slack off when first respondents arrive. After the Blast, most of them wait for authority orders and cannot launch minimum self-help and community help which they learned from the trainings.

Practical implications

This study confirms that the leadership research should take different categories and levels of leaders into consideration to distinguish public leaders from non-public leaders, professional disaster risk reduction leaders from non-professional leaders, and higher authorities from basic levels of government. The findings from this study provide a basis for the rational design of the job descriptions of village leaders.

Originality/value

This study is the first empirical research to investigate first-level but non-professional disaster management staffs’ information seeking and decision making after an unprecedented disaster in Taiwan.
Effect of abusive supervision on employee’s intention to quit and the neutralizing role of meaningful work in Indian IT organizations
Authors: Pradhan Sajeet , Jena Lalatendu Kesari
Published: September 2017

Purpose

Several studies have investigated the harmful effects of abusive supervision on subordinates’ behaviour and performance, including their intention to quit. However, there is a conspicuous dearth of empirical studies testing the deleterious interpersonal relationship, especially in Indian organizations. The purpose of this study is to explore the moderating role of meaningful work as a neutralizer in mitigating the pernicious effect of abusive supervision on subordinates’ turnover intention.

Design/methodology/approach

Data were collected from software professionals working in several Indian IT companies through self-report questionnaires (n= 227), using a time-lagged design on two occasions (span between T1 and T2 was three to four weeks).

Findings

The result confirms that abusive supervision is strongly related to subordinates’ intention to quit. Also, the study finds meaningful work to have a significant moderating effect on the relationship between abusive supervision and intention to quit.

Originality/value

The number of empirical studies exploring the pernicious effect of abusive supervision in Indian organizational context is almost negligible. In addition, the current study is among the few studies that have investigated the moderating effect of meaningful work on the relationship between abusive supervision and intention to quit.
Promoting sustainable development implementation in higher education
Authors: Awuzie Bankole , Emuze Fidelis
Published: September 2017

Purpose

This study aims to review the zeal exhibited by universities in South Africa towards aligning institutional mandates of teaching, learning, research and community engagement to the sustainable development (SD) agenda. The implementation of the SD agenda across higher education institutions (HEIs) continues to draw attention from the wider society. This is because HEIs are increasingly being looked up to for leadership in this regard. However, although several studies are quick to identify various factors which have driven the adoption of sustainable practices in HEIs, the paucity of studies seeking to identify the drivers for SD implementation remains glaring. This is particularly so in developing countries like South Africa.

Design/methodology/approach

To confirm the exploratory data from desktop study on public university engagement with sustainability in South Africa, a single case study was conducted in the Central University of Technology (CUT). The single case study design adopted semi-structured interviews and document reviews as data collection techniques. Purposive snowballing sampling technique was strictly adhered to in the selection of interviewees. Interviewees were selected on the basis of their roles in the implementation of the CUT’s sustainability agenda.

Findings

Data emanating from these interviews were analysed thematically using qualitative content analysis. Although a plethora of drivers were identified, there appeared to be a consensus between most of the interviewees that the quest for cost reduction remained the most significant driver for the viable implementation of the sustainability agenda at CUT.

Research limitations/implications

It is expected that findings from this study would provide a platform for the development of effective implementation strategies in South African HEIs. Also, the findings contribute to filing the extant gap observed concerning implementation and drivers for engendering SD implementation in HEIs in sub-Saharan Africa (SSA) region.

Practical implications

By highlighting the drivers for SD implementation, this study contributes to the development of a more receptive social ontology among various stakeholders in an HEI towards the agenda, particularly within the SSA context where there is low level of awareness and buy-in by these stakeholders.

Originality/value

This study makes an original contribution to the research base of SD in HEIs and implementation.
A study of goal frames shaping pro-environmental behaviour in university students
Authors: Chakraborty Arpita , Singh Manvendra Pratap , Roy Mousumi
Published: September 2017

Purpose

The purpose of this paper is to examine the role of university in shaping pro-environmental behaviour in students.

Design/methodology/approach

The paper used goal-framing theory to investigate the relationship between goals and pro-environmental behaviour by comparing the responses of entry- and exit-level students. Structural equation modeling, one-way analysis of variance and other standard statistical analysis have been used to analyse the data collected through questionnaire survey in a central university offering technical education in India.

Findings

Pro-environmental intention in students increases with a strong normative goal. The direct and indirect effects indicate hedonic goal and gain goal via normative goal leads to better pro-environmental behaviour. Higher values for normative goal in exit-level students substantiates the role of university.

Practical implications

The paper provides scope to improvise and incorporate environmental practices into the habits of the students by aligning their goals and university dimensions including curriculum, campus operations, research and outreach activities.

Originality/value

The results make an important contribution in establishing a sustained green culture by offering a new university paradigm.
Corporate social responsibility accounting for arising issues
Authors: Weber Florian , Larsson-Olaison Ulf
Published: September 2017

Purpose

Arising societal issues challenge corporate social responsibility. The purpose of this paper is to analyze how corporations account for arising issues under different institutional settings: the stakeholder oriented corporate governance model of Germany is hypothesized to produce a different response than the more state dominated Swedish welfare model.

Design/methodology/approach

This paper takes the reported CSR response of the largest corporations in Germany and Sweden, in relation to the 2015 European refugee crisis, as its case. In total, 157 annual reports are investigated by means of text analysis for statements in relation to the European refugee crisis.

Findings

Empirically, German corporations are more prone to communicate on this emerging issue, and deploying corporate resources to an emerging societal crisis. Based on that finding, this study concludes that the German model is more in line with international CSR-discourse than the Swedish.

Research limitations/implications

This study has implications for institutional theory perspectives on CSR accounting-related issues. By comparing two economies that would be characterized as “coordinated market economies” a somewhat different set of topics becomes apparent. Further considering country context could be useful when expanding the debate on CSR accounting.

Originality/value

This study is the first to empirically investigate corporate diplomacy with regard to the European refugee crisis. Besides others, corporations are important societal players. Therefore, corporations bear both, the obligation to deal with arising issues and the potential to participate in public opinion-forming with regard to those issues.
A quest for soft power: Turkey and the Syrian refugee crisis
Authors: Cevik Senem , Sevin Efe
Published: September 2017

Purpose

The purpose of this paper is to bring a communication management perspective to how nations might use their involvement in humanitarian responses to refugee crisis in attempts to improve their global standing through a case study of Turkish efforts during the Syrian Civil War.

Design/methodology/approach

In order to assess the context of Turkey’s attempts to communicate its humanitarian response to the Syrian refugee crisis and its political discourse, the authors use a two-level analysis. The authors utilize a framing analysis and the informational framework of public diplomacy. The authors conduct a framing analysis of 14 speeches delivered by President Recep Tayyip Erdogan and Foreign Minister Mevlüt Çavusoglu at various international platforms in order to determine the frames and the information frame strategies employed. The authors investigate how Turkey managed its communication efforts and the ways in which the frames are used to reflect Turkey’s nation brand.

Findings

The analysis indicates that Turkey uses three frames: benevolent country, righteous side, and global power. These frames indicate that Turkey sees the refugee crisis as a problem resulting from the inefficiency of the international community and presents the “Turkish model” as the benevolent and righteous example to overcome these inefficiencies. Based on the information framework strategies used, it can be argued that the positive impact of these frames on the Turkish brand will be limited to certain audiences mainly due to the communication priorities of the country.

Originality/value

This study provides a novel communication management outlook on humanitarian aid and public diplomacy through an analysis of Turkey as an illustrative case exemplifying communication of development. This study also demonstrates a framework to assess the communication management strategies of other nations that are encountering global refugee crisis and similar humanitarian relief efforts.
Factors affecting tender price in the Ghanaian construction industry
Authors: Kissi Ernest , Adjei-Kumi Theophilus , Badu Edward , Boateng Emmanuel Bannor
Published: September 2017

Purpose

Tender price remains an imperative parameter for clients in deciding whether to invest in a construction project, and it serves as a basis for tender price index (TPI) manipulations. This paper aims to examine the factors affecting tender price in the construction industry.

Design/methodology/approach

Based on the literature review, nine independent constructs and one dependent construct relating to tender pricing were identified. A structured questionnaire survey was conducted among quantity surveyors in Ghana. Partial least squares structural equation modelling (PLS-SEM) examined the influences of various constructs on tender price development (TPD) and the relationships among TPD and TPI.

Findings

Results showed that cultural attributes, client attributes, contractor attributes; contract procedures and procurement methods; consultant and design team; external factors and market conditions; project attributes; sustainable and technological attributes; and TPI have a positive influence on tender price, whereas fraudulent attributes exert a negative influence.

Practical implications

The findings offer construction professionals broader understanding of factors that affect tender pricing. The results may be used in professional decision-making in the pricing of construction projects, as they offer clearer causal relations between how each construct will influence pricing.

Originality/value

This study adds to the body of construction pricing knowledge by establishing the relationships and degree of influences of various factors on tender price. These findings provide a valuable reference for practitioners.
The Trojan horse of affluence and halal in the Arabian Gulf
Authors: El-Bassiouny Noha M.
Published: September 2017

Purpose

The purpose of this paper is to take the case of the United Arab Emirates (UAE) as a starting point for the analysis of the blend between the notions of halal and luxury in the Arab region because the UAE presents an interesting multicultural yet Islamic blend, which has yet not been investigated. Scholarly calls for the assessment of the relationship between consumption and wellbeing have raised interest in conspicuous consumption research. The global phenomenon of luxury consumption has drawn researcher interest at recent times. Despite consumer affluence in the oil-rich Arabian Gulf, research into this phenomenon at this emerging region to-date is still lacking. As the Arabian Gulf is also particularly Islamic, a significant body of literature has addressed halal purchasing yet had failed to examine the intersections between luxury and halal consumption.

Design/methodology/approach

The research takes a qualitative methodological approach utilizing unstructured observation and content analysis of 138 visuals collected from prominent shopping malls in Dubai and Abu-Dhabi during the occasion of the minor Islamic Eid following Ramadan.

Findings

The results show that the UAE consumer culture combines authenticity with modernity portraying highly savvy cosmopolitan consumers sharing the global values of urbanization within the halal parameters.

Research limitations/implications

The limitations relate to the utilization of the qualitative methodological approach; hence, the research findings need to be generalized with caution to relevant contexts. This research should be regarded as a critical starting point in analyzing the syllogisms between the notions of halal and affluence.

Practical implications

The findings are relevant to consumer culture research which looks at the implications of modern consumption within the boundaries of halal. The research presents a critical approach and questioning of the overlaps between halal consumption, responsible consumption and luxury consumption in a unique multicultural and affluent setting which is the UAE.

Social implications

The present paper invites academics and practitioners to introspect into the dimensions of responsible consumption, luxury consumption and halal consumption. It asks the critical metaphorical question of whether halal and luxury consumption are two faces of the same coin.

Originality/value

The research concludes with raising critical questions around the boundaries of luxury consumption from an Islamic perspective, thereby combining elements of religion and cultural approaches to Islamic marketing.
Risk-agility interactive model: a new look at agility drivers
Authors: Zanjirchi Seyed Mahmoud , Jalilian Negar , Mirhoseini Ali
Published: September 2017

Purpose

According to the definitions presented for agility drivers, it can be mentioned that supply chain risk factors in terms of feature have very close roles to agility drivers and both of these factors impact the uncertainty in the environment. However, the risk factors with a wider domain are more comprehensive. This study aims to examine the effectiveness of risk as a driver on the organizational agility.

Design/methodology/approach

To conduct the research, after identification of influential risk factors of supply chain and indicators of organizational agility, questionnaires needed for the research were designed and after confirming their validity and reliability were distributed among the member of the sample. To assess the relationship between supply chain risk and the amount of organizational agility, data obtained from the questionnaires were analyzed using structural equation modeling technique.

Findings

The results of data analysis showed that supply chain risk factors could be considered as a driver affecting the organizational agility. In addition, in this study, supply chain risk factors were ranked using interpretive structural modeling. The presented comprehensive model indicated that based on causal relationships between risk factors, sovereign risk as the basis for model (three levels) and product and customer satisfaction risks as the output of the model (Level 1) were considered.

Originality/value

This paper fulfills an identified need to study how the risk factors as drivers of supply chain agility can have effect on agility.