bluuebunny/crossref_metadata_2025 huggingface dataset:
Doing power and negotiating through disagreement in public meetings
Authors: Lazzaro-Salazar Mariana Virginia , Marra Meredith , Holmes Janet , Vine Bernadette
Published: September 2015

Power in meetings may be enacted in many ways, ranging from democratic and collaborative through to authoritative and didactic, with the exact positioning on this continuum typically under the control of the chair. By contrast with the focus of most previous research on the behaviour of institutionally ratified chairs of intact teams, this paper examines how volunteer chairs of small focus groups in public meetings use the power associated with that role to manage the discussion and to encourage or discourage explicit expression of disagreement. Our analysis identifies ways in which these arbitrarily assigned chairs influence and facilitate the small group discussions through a range of discourse practices. By separating the chair role from its typical co-occurrence with institutional hierarchy we are able to demonstrate the inherent influence and power of the position in the decision making process.
Re-examination of genetic and nutritional factors related to trichothecene biosynthesis in Fusarium graminearum
Authors: Kitou Yoshiyuki , Nakajima Yuichi , Maeda Kazuyuki , Jin Qi , Nishiuchi Takumi , Kanamaru Kyoko , Kobayashi Tetsuo , Kimura Makoto
Published: September 2015

Disruption of two Fusarium genes that negatively regulate trichothecene biosynthesis was reported to cause a drastic increase in trichothecene production. However, careful inspection of these genes revealed that neither was significantly related to trichothecene production. Agmatine medium maintained the expression of trichothecene genes at significant levels, resulting in a 2–3-fold increase in the final yield, as compared to glutamine medium.
Reevaluating αE-catenin monomer and homodimer functions by characterizing E-cadherin/αE-catenin chimeras
Authors: Bianchini Julie M. , Kitt Khameeka N. , Gloerich Martijn , Pokutta Sabine , Weis William I. , Nelson W. James
Published: September 2015

As part of the E-cadherin–β-catenin–αE-catenin complex (CCC), mammalian αE-catenin binds F-actin weakly in the absence of force, whereas cytosolic αE-catenin forms a homodimer that interacts more strongly with F-actin. It has been concluded that cytosolic αE-catenin homodimer is not important for intercellular adhesion because E-cadherin/αE-catenin chimeras thought to mimic the CCC are sufficient to induce cell–cell adhesion. We show that, unlike αE-catenin in the CCC, these chimeras homodimerize, bind F-actin strongly, and inhibit the Arp2/3 complex, all of which are properties of the αE-catenin homodimer. To more accurately mimic the junctional CCC, we designed a constitutively monomeric chimera, and show that E-cadherin–dependent cell adhesion is weaker in cells expressing this chimera compared with cells in which αE-catenin homodimers are present. Our results demonstrate that E-cadherin/αE-catenin chimeras used previously do not mimic αE-catenin in the native CCC, and imply that both CCC-bound monomer and cytosolic homodimer αE-catenin are required for strong cell–cell adhesion.
CRISP1 as a novel CatSper regulator that modulates sperm motility and orientation during fertilization
Authors: Ernesto Juan I. , Weigel Muñoz Mariana , Battistone María A. , Vasen Gustavo , Martínez-López Pablo , Orta Gerardo , Figueiras-Fierro Dulce , De la Vega-Beltran José L. , Moreno Ignacio A. , Guidobaldi Héctor A. , Giojalas Laura , Darszon Alberto , Cohen Débora J. , Cuasnicú Patricia S.
Published: September 2015

Ca2+-dependent mechanisms are critical for successful completion of fertilization. Here, we demonstrate that CRISP1, a sperm protein involved in mammalian fertilization, is also present in the female gamete and capable of modulating key sperm Ca2+ channels. Specifically, we show that CRISP1 is expressed by the cumulus cells that surround the egg and that fertilization of cumulus–oocyte complexes from CRISP1 knockout females is impaired because of a failure of sperm to penetrate the cumulus. We provide evidence that CRISP1 stimulates sperm orientation by modulating sperm hyperactivation, a vigorous motility required for penetration of the egg vestments. Moreover, patch clamping of sperm revealed that CRISP1 has the ability to regulate CatSper, the principal sperm Ca2+ channel involved in hyperactivation and essential for fertility. Given the critical role of Ca2+ for sperm motility, we propose a novel CRISP1-mediated fine-tuning mechanism to regulate sperm hyperactivation and orientation for successful penetration of the cumulus during fertilization.
PC7 and the related proteases Furin and Pace4 regulate E-cadherin function during blastocyst formation
Authors: Bessonnard Sylvain , Mesnard Daniel , Constam Daniel B.
Published: September 2015

The first cell differentiation in mammalian embryos segregates polarized trophectoderm cells from an apolar inner cell mass (ICM). This lineage decision is specified in compacted morulae by cell polarization and adhesion acting on the Yes-associated protein in the Hippo signaling pathway, but the regulatory mechanisms are unclear. We show that morula compaction and ICM formation depend on PC7 and the related proprotein convertases (PCs) Furin and Pace4 and that these proteases jointly regulate cell–cell adhesion mediated by E-cadherin processing. We also mapped the spatiotemporal activity profiles of these proteases by live imaging of a transgenic reporter substrate in wild-type and PC mutant embryos. Differential inhibition by a common inhibitor revealed that all three PCs are active in inner and outer cells, but in partially nonoverlapping compartments. E-cadherin processing by multiple PCs emerges as a novel mechanism to modulate cell–cell adhesion and fate allocation.
PDK2-mediated alternative splicing switches Bnip3 from cell death to cell survival
Authors: Gang Hongying , Dhingra Rimpy , Lin Junjun , Hai Yan , Aviv Yaron , Margulets Victoria , Hamedani Mohammad , Thanasupawat Thatchawan , Leygue Etienne , Klonisch Thomas , Davie James R. , Kirshenbaum Lorrie A.
Published: September 2015

Herein we describe a novel survival pathway that operationally links alternative pre-mRNA splicing of the hypoxia-inducible death protein Bcl-2 19-kD interacting protein 3 (Bnip3) to the unique glycolytic phenotype in cancer cells. While a full-length Bnip3 protein (Bnip3FL) encoded by exons 1–6 was expressed as an isoform in normal cells and promoted cell death, a truncated spliced variant of Bnip3 mRNA deleted for exon 3 (Bnip3Δex3) was preferentially expressed in several human adenocarcinomas and promoted survival. Reciprocal inhibition of the Bnip3Δex3/Bnip3FL isoform ratio by inhibiting pyruvate dehydrogenase kinase isoform 2 (PDK2) in Panc-1 cells rapidly induced mitochondrial perturbations and cell death. The findings of the present study reveal a novel survival pathway that functionally couples the unique glycolytic phenotype in cancer cells to hypoxia resistance via a PDK2-dependent mechanism that switches Bnip3 from cell death to survival. Discovery of the survival Bnip3Δex3 isoform may fundamentally explain how certain cells resist Bnip3 and avert death during hypoxia.
Glycolytic cancer cells splice their way out of trouble
Authors: Sedwick Caitlin
Published: September 2015

Cancer cells’ glycolytic phenotype drives alternative splicing of the proapoptotic protein Bnip3, producing a splice variant that protects against death.
A novel Ca2+-feedback mechanism extends the operating range of mammalian rods to brighter light
Authors: Vinberg Frans , Turunen Teemu T. , Heikkinen Hanna , Pitkänen Marja , Koskelainen Ari
Published: September 2015

Sensory cells adjust their sensitivity to incoming signals, such as odor or light, in response to changes in background stimulation, thereby extending the range over which they operate. For instance, rod photoreceptors are extremely sensitive in darkness, so that they are able to detect individual photons, but remain responsive to visual stimuli under conditions of bright ambient light, which would be expected to saturate their response given the high gain of the rod transduction cascade in darkness. These photoreceptors regulate their sensitivity to light rapidly and reversibly in response to changes in ambient illumination, thereby avoiding saturation. Calcium ions (Ca2+) play a major role in mediating the rapid, subsecond adaptation to light, and the Ca2+-binding proteins GCAP1 and GCAP2 (or guanylyl cyclase–activating proteins [GCAPs]) have been identified as important mediators of the photoreceptor response to changes in intracellular Ca2+. However, mouse rods lacking both GCAP1 and GCAP2 (GCAP−/−) still show substantial light adaptation. Here, we determined the Ca2+ dependency of this residual light adaptation and, by combining pharmacological, genetic, and electrophysiological tools, showed that an unknown Ca2+-dependent mechanism contributes to light adaptation in GCAP−/− mouse rods. We found that mimicking the light-induced decrease in intracellular [Ca2+] accelerated recovery of the response to visual stimuli and caused a fourfold decrease of sensitivity in GCAP−/− rods. About half of this Ca2+-dependent regulation of sensitivity could be attributed to the recoverin-mediated pathway, whereas half of it was caused by the unknown mechanism. Furthermore, our data demonstrate that the feedback mechanisms regulating the sensitivity of mammalian rods on the second and subsecond time scales are all Ca2+ dependent and that, unlike salamander rods, Ca2+-independent background-induced acceleration of flash response kinetics is rather weak in mouse rods.
Navigating the plant cell: intracellular transport logistics in the green kingdom
Authors: Geitmann Anja , Nebenführ Andreas
Published: September 2015

Intracellular transport in plant cells occurs on microtubular and actin arrays. Cytoplasmic streaming, the rapid motion of plant cell organelles, is mostly driven by an actin–myosin mechanism, whereas specialized functions, such as the transport of large cargo or the assembly of a new cell wall during cell division, are performed by the microtubules. Different modes of transport are used, fast and slow, to either haul cargo over long distances or ascertain high-precision targeting, respectively. Various forms of the actin-specific motor protein myosin XI exist in plant cells and might be involved in different cellular functions.
Characterization of Streptomycin Resistance in Isolates of Erwinia amylovora in California
Authors: Förster Helga , McGhee Gayle C. , Sundin George W. , Adaskaveg James E.
Published: September 2015

In surveys from 2006 to 2014, streptomycin resistance in Erwinia amylovora from pear-growing areas in California declined from very high incidence in 2006 and 2007 to very low incidence in 2013 and 2014. The majority of resistant strains were designated as moderately resistant-low (MR-L), and were almost exclusively found in Sacramento County, whereas highly resistant (HR) strains were only recovered in Sutter-Yuba and San Joaquin counties. Resistance of HR strains was associated with a mutation in codon 43 of the chromosomal rpsL gene that results in a change from lysine to arginine, the same mutation that was originally reported for resistant strains from California in the mid-1970s. MR-L strains were found to harbor the strA-strB streptomycin resistance genes on transposon Tn5393a. This transposon lacks insertion sequence IS1133 that provides a promoter for efficient expression of strA-strB, resulting in lower minimum inhibitory concentrations of MR-L strains compared with those from other locations that harbor strA-strB on Tn5393::IS1133. In contrast to previously described plasmid-mediated resistance where Tn5393 is inserted in pEa34, or pEA29, Tn5393a in MR-L strains was located on plasmid pEU30. This plasmid was first described in E. amylovora from the western United States but was not associated with streptomycin resistance determinants previously. We hypothesize that Tn5393a was introduced into an E. amylovora strain carrying pEU30 and transposed into that plasmid. This hypothesis was supported by clustered regularly interspaced short palindromic repeat (CRISPR) sequence analysis that showed that two MR-L strains share the same CRISPR1 pattern as a streptomycin-sensitive strain. With current low resistance levels in California growing regions, streptomycin could be successfully used again, but applications per season should be limited and the antibiotic should be mixed and rotated with different modes of action.
Direct infection of primary endothelial cells with human cytomegalovirus prevents angiogenesis and migration
Authors: Gustafsson Rasmus K. L. , Jeffery Hannah C. , Yaiw Koon-Chu , Wilhelmi Vanessa , Kostopoulou Ourania N. , Davoudi Belghis , Rahbar Afsar , Benard Melinda , Renné Thomas , Söderberg-Nauclér Cecilia , Butler Lynn M.
Published: September 2015

Human cytomegalovirus (hCMV) is a beta herpesvirus that establishes lifelong infection. Although the virus does not usually cause overt clinical symptoms in immunocompetent individuals it can have deleterious effects in immunocompromised patients, such as those on post-transplant medication or with HIV infection. hCMV is the most common congenital infection and can lead to serious fetal sequelae. Endothelial cells (ECs) are natural hosts for hCMVin vivo, therefore, investigations of how this cell type is modulated by infection are key to understanding hCMV pathogenesis. Previous studies have examined the effect of secretomes from hCMV-infected cells on EC angiogenesis, whereas the effect of direct infection on this process has not been so well investigated. Here, we show that placental ECs are viral targets during congenital infection and that vessels in infected tissue appear morphologically abnormal. We demonstrate that the clinical hCMV strain VR1814 impaired EC tube assembly inin vitroangiogenesis assays and inhibited wound healing ability in scratch assays. Secretomes from infected cultures did not impair angiogenesis of uninfected ECs, suggesting that cell-intrinsic changes, as opposed to secreted factors, were responsible. We observed viral gene transcription dependent downregulation of the expression of angiogenesis-associated genes, including angiopoietin-2, TEK receptor and vascular endothelial growth factor receptors. An alternative clinical hCMV stain, TB40E showed similar effects on EC angiogenesis. Together, our data indicate that direct infection with hCMV can induce an anti-migratory and anti-angiogenic EC phenotype, which could have a detrimental effect on the vasculature development in infected tissues.
A sequence of basic residues in the porcine circovirus type 2 capsid protein is crucial for its co-expression and co-localization with the replication protein
Authors: Huang Liping , Van Renne Nicolaas , Liu Changming , Nauwynck Hans J.
Published: September 2015

Porcine circovirus type 2 (PCV2) encodes two major proteins: the replication protein (Rep) and the capsid protein (Cap). Cap displays a conserved stretch of basic residues situated on the inside of the capsid, whose role is so far unknown. We used a reverse-genetics approach to investigate its function and found that mutations in these amino acids hindered Cap mRNA translation and hampered Cap/Rep co-localization, yielding unfit viruses. Intriguingly, co-transfection with a WT PCV2 of a different genotype partially rescued mutant Cap expression, showing the importance of this basic pattern for efficient translation of Cap mRNA into protein. Our results show that Cap and Rep are expressed independently of each other, and that this amino acid sequence of Cap is vital for virus propagation. This study provides a method for studying unfit PCV2 virions and offers new insights into the intracellular modus vivendi of PCV2.
Evolutionary assembly patterns of prokaryotic genomes
Authors: Press Maximilian O. , Queitsch Christine , Borenstein Elhanan
Published: September 2015

Evolutionary innovation must occur in the context of some genomic background, which limits available evolutionary paths. For example, protein evolution by sequence substitution is constrained by epistasis between residues. In prokaryotes, evolutionary innovation frequently happens by macrogenomic events such as horizontal gene transfer (HGT). Previous work has suggested that HGT can be influenced by ancestral genomic content, yet the extent of such gene-level constraints has not yet been systematically characterized. Here, we evaluated the evolutionary impact of such constraints in prokaryotes, using probabilistic ancestral reconstructions from 634 extant prokaryotic genomes and a novel framework for detecting evolutionary constraints on HGT events. We identified 8,228 directional dependencies between genes, and demonstrated that many such dependencies reflect known functional relationships, including, for example, evolutionary dependencies of the photosynthetic enzyme RuBisCO. Modeling all dependencies as a network, we adapted an approach from graph theory to establish chronological precedence in the acquisition of different genomic functions. Specifically, we demonstrated that specific functions tend to be gained sequentially, suggesting that evolution in prokaryotes is governed by functional assembly patterns. Finally, we showed that these dependencies are universal rather than clade-specific and are often sufficient for predicting whether or not a given ancestral genome will acquire specific genes. Combined, our results indicate that evolutionary innovation via HGT is profoundly constrained by epistasis and historical contingency, similar to the evolution of proteins and phenotypic characters, and suggest that the emergence of specific metabolic and pathological phenotypes in prokaryotes can be predictable from current genomes.
Pixelated transmission-mode diamond X-ray detector
Authors: Zhou Tianyi , Ding Wenxiang , Gaowei Mengjia , De Geronimo Gianluigi , Bohon Jen , Smedley John , Muller Erik
Published: September 2015

Fabrication and testing of a prototype transmission-mode pixelated diamond X-ray detector (pitch size 60–100 µm), designed to simultaneously measure the flux, position and morphology of an X-ray beam in real time, are described. The pixel density is achieved by lithographically patterning vertical stripes on the front and horizontal stripes on the back of an electronic-grade chemical vapor deposition single-crystal diamond. The bias is rotated through the back horizontal stripes and the current is read out on the front vertical stripes at a rate of ∼1 kHz, which leads to an image sampling rate of ∼30 Hz. This novel signal readout scheme was tested at beamline X28C at the National Synchrotron Light Source (white beam, 5–15 keV) and at beamline G3 at the Cornell High Energy Synchrotron Source (monochromatic beam, 11.3 keV) with incident beam flux ranges from 1.8 × 10−2to 90 W mm−2. Test results show that the novel detector provides precise beam position (positional noise within 1%) and morphology information (error within 2%), with an additional software-controlled single channel mode providing accurate flux measurement (fluctuation within 1%).
X-ray fluorescence induced by standing waves in the grazing-incidence and grazing-exit modes: study of the Mg–Co–Zr system
Authors: Tu Yuchun , Yuan Yanyan , Le Guen Karine , André Jean-Michel , Zhu Jingtao , Wang Zhanshan , Bridou Françoise , Giglia Angelo , Jonnard Philippe
Published: September 2015

The characterization of Mg–Co–Zr tri-layer stacks using X-ray fluorescence induced by X-ray standing waves, in both the grazing-incidence (GI) and the grazing-exit (GE) modes, is presented. The introduction of a slit in the direction of the detector improves the angular resolution by a factor of two and significantly improves the sensitivity of the technique for the chemical characterization of the buried interfaces. By observing the intensity variations of the MgKα and CoLα characteristic emissions as a function of the incident (GI mode) or detection (GE mode) angle, it is shown that the interfaces of the Si/[Mg/Co/Zr]×30multilayer are abrupt, whereas in the Si/[Mg/Zr/Co]×30multilayer a strong intermixing occurs at the Co-on-Zr interfaces. An explanation of this opposite behavior of the Co-on-Zr and Zr-on-Co interfaces is given by the calculation of the mixing enthalpies of the Co–Mg, Co–Zr and Mg–Zr systems, which shows that the Co–Zr system presents a negative value and the other two systems present positive values. Together with the difference of the surface free energies of Zr and Co, this leads to the Mg/Zr/Co system being considered as a Mg/CoxZrybi-layer stack, withx/yestimated around 3.5.
Optimal selection of third-party logistics service providers using quality function deployment and Taguchi loss function
Authors: Sharma Satyendra Kumar , Kumar Vinod
Published: September 2015

Purpose

– Selection of logistics service provider (LSP) (also known as Third-party logistics (3PL) is a critical decision, because logistics affects top and bottom line as well. Companies consider logistics as a cost driver and at the time of LSP selection decision, many important decision criteria’s are left out. 3PL selection is multi-criteria decision-making process. The purpose of this paper is to develop an integrated approach, combining quality function deployment (QFD), and Taguchi loss function (TLF) to select optimal 3PL.

Design/methodology/approach

– Multiple criteria are derived from the company requirements using house of quality. The 3PL service attributes are developed using QFD and the relative importance of the attributes are assessed. TLFs are used to measure performance of each 3PL on each decision variable. Composite weighted loss scores are used to rank 3PLs.

Findings

– QFD is a better tool which connects attributes used in a decision problem to decision maker’s requirements. In total, 15 criteria were used and TLF provides performance on these criteria.

Practical implications

– The proposed model provides a methodology to make informed decision related to 3PL selection. The proposed model may be converted into decision support system.

Originality/value

– Proposed approach in this paper is a novel approach that connects the 3PL selection problem to practice in terms of identifying criteria’s and provides a single numerical value in terms of Taghui loss.
The mediating effect of human resource on successful total quality management implementation
Authors: Dubey Rameshwar , Singh Tripti , Ali Sadia Samar
Published: September 2015

Purpose

– The purpose of this paper is to study the mediating effect of human resource (HR) between independent variables (i.e. leadership and quality culture (QC)) and successful total quality management (TQM) implementation for firm performance as dependent variable.

Design/methodology/approach

– In this paper, the authors have used exploratory factor analysis output as input for mediation statistics. The mediating regression analysis has been performed using exploratory factor analysis based on four steps technique proposed by Baron and Keene in the year 1986 to test the theoretical model.

Findings

– The mediation statistics output suggests that HR is a complete mediation between independent variables (i.e. leadership) and successful TQM implementation for firm performance and QC is having direct impact on firm performance without any mediation effect of HR.

Research limitations/implications

– Mediation regression has its own limitations. Satisfying four steps does not, however, conclusively establish that mediation has occurred and also there persists a measurement problem. The cross-ectional data is one of the present limitation of our present study. While this study was able to provide additional insight into leadership and QC of TQM and its relationship with firm performance, it also revealed areas that would benefit from further research.

Originality/value

– This study provides an insight into leadership together with right QC mediates with HR practices to help successful TQM implementation for firm performance on the basis of survey conducted among Indian manufacturing sector is unique contribution.
A warranty based bilateral multi-issue negotiation approach
Authors: Ambad Prashant M. , Kulkarni Makarand S.
Published: September 2015

Purpose

– The purpose of this paper is to propose a warranty-based bilateral automated multi-issue negotiation approach.

Design/methodology/approach

– A methodology for bilateral automated negotiation process is developed considering the targets such as warranty attractiveness, warranty cost, mean time between failures, spare parts cost to the end user over the useful life of the life. The negotiation methodology is explained using different cases of negotiation. The optimization for each negotiation step is carried out using genetic algorithm with elitism strategy.

Findings

– The result after optimization indicates that the desired target values are achieved and manufacturer obtained desired profit margin.

Practical implications

– Application of automated negotiation model is illustrated using a real life case of an automobile engine manufacturer. The proposed approach helps the manufacturer of any product to develop a methodology for carrying out the negotiation process. The approach also results into taking warranty-related decisions at the design stage.

Originality/value

– This paper contributes in proposing a generalized methodology for warranty-based negotiation in which the negotiation is carried out between the manufacturer and the customer.
Slack based measure of efficiencies of public sector hospitals in Uttarakhand (India)
Authors: Mogha Sandeep Kumar , Yadav Shiv Prasad , Singh S. P.
Published: September 2015

Purpose

– The purpose of this paper is to determine the relative efficiencies of public sector hospitals in Uttarakhand, India.

Design/methodology/approach

– The study use data of public hospitals collected from Directorate of Medical Health and Family Welfare, Government of Uttarakhand, Dehradun, India for the year 2011. The cross-sectional data analyses are carried out by applying data envelopment analysis (DEA) based slack based model.

Findings

– The analysis found that out of total 36 hospitals only ten hospitals are relatively overall technical efficient. The average overall technical efficiency 54.10 per cent indicates that an average hospital has the scope of producing the outputs with the inputs 45.90 per cent lesser than their existing levels. The slack analysis results show that on average 12.57 per cent of beds, 13.16 per cent of doctors, 14.04 per cent of paramedical staff can be reduced and 17.53 per cent of out-door patients, 66.55 per cent of in-door patients, 208.23 per cent of major surgeries, 110.73 per cent of minor surgeries can be expanded if all the inefficient hospitals operate at the level of efficient hospitals.

Originality/value

– The present study is undertaken to measure the relative efficiencies of public sector hospitals in Uttarakhand. There is dearth of studies being done on Indian healthcare sector and this study will help to utilize healthcare resources efficiently for formulating policy implications for public hospitals in Uttarakhand. For the robustness of DEA results, Jackknifing analysis is also conducted.
Untangling the antecedents of code of ethics quality: does corporate governance matter?
Authors: Garegnani Giovanni Maria , Merlotti Emilia Piera , Russo Angeloantonio
Published: September 2015

Purpose

– This study aims to investigate the antecedents of code of ethics’ quality with specific regard to the peculiarities of corporate governance, which include the role of the primary shareholders within the firm, the role and influence of independent directors on the board, the effect of board size on the strategic decision-making process and the influence of the chief executive officer’s (CEO) age and gender diversity.

Design/methodology/approach

– A sample of 248 Italian public companies publishing a code of ethics as of 2011 is used to test the hypotheses through Tobit regression models.

Findings

– A positive or negative impact is derived from the implementation of a high-quality code of ethics. Codes of ethics are strongly influenced by the ownership structure of the company given the critical role played by primary shareholders with larger stakes in influencing the quality of a code. Moreover, the lower the number of independent directors, the higher the firm’s propensity to invest in code of ethics’ quality. Similar results were found in relation to board size and CEO age, where smaller boards and younger CEOs are more inclined to implement higher-quality codes of ethics.

Originality/value

– Results support the argument that when linked to a sustainability strategic orientation focused on a high-quality code of ethics, corporate governance characteristics reveal influences that differ from those found in prior literature.
Multiple directorships, industry relatedness, and corporate governance effectiveness
Authors: Clements Curtis , Neill John D. , Wertheim Paul
Published: September 2015

Purpose

– The purpose of this paper is to investigate the relationship between the industry relatedness of directors’ multiple directorships and corporate governance effectiveness. The authors posit that a director gains “beneficial experience” by serving on outside boards of companies in related industries, with a resulting increase in governance effectiveness. Conversely, they predict a decrease in governance effectiveness when directors serve on outside boards of companies in unrelated industries.

Design/methodology/approach

– Using publicly available data, a Tobit regression model is used to examine the effect of the industry relatedness of board members’ multiple directorships on corporate governance effectiveness.

Findings

– The results demonstrate a significant positive correlation between the industry relatedness of directors’ multiple directorships and corporate governance effectiveness. It was found that this industry relatedness effect is stronger for directors of small companies than large company directors. The paper also documents a significant negative effect on governance effectiveness for small firms whose directors increase their board service on non-industry-related boards.

Originality/value

– Prior research has examined the “Busyness Hypothesis” and the “Experience Hypothesis” as mutually exclusive hypotheses. This paper extends prior research by examining the possibility that the two hypotheses are not competing, but rather that both an experience effect and a busyness effect may be present for directors serving on multiple boards, and that one of the effects will dominate the other, based on certain company-specific characteristics.
Ownership concentration of three large Belgian banks during the crisis
Authors: Deudon Jean-Charles , Marques Ana C. , Sarens Gerrit
Published: September 2015

Purpose

– In this paper, two different ownership structures in Belgian banks are studied to see whether this had an impact on how these banks went through the financial crisis of 2007-2008. On the one hand, there is the concentrated ownership structure with a number of major shareholders, while on the other hand, the ownership can be really dispersed with no shareholder having a significantly large stake and ability to influence management’s decisions.

Design/methodology/approach

– The authors study three large Belgians banks. Dexia and KBC followed the first model (concentrated ownership), while Fortis’ ownership was really dispersed since the year 2000. The authors perform several interviews with people involved with these banks during the crisis and analyze several external sources of information.

Findings

– The mitigating impact that major shareholders could have had on the – in hindsight – wrong decisions of Belgian banks’ top managers is found to be very limited. Therefore, it can be concluded that the dispersed ownership structure of Fortis was not an important factor in its collapse. Nevertheless, a concentrated ownership structure has been found out to help in case of financial distress, mainly because governments will be more inclined to participate to bailouts when a sound rescue strategy, elaborated with the help of a stable and concentrated ownership structure, is present.

Originality/value

– By performing interviews, the authors get an insider’s point of view of these banks during the crisis.
Remuneration committee and corporate failure
Authors: Appiah Kingsley Opoku , Chizema Amon
Published: September 2015

Purpose

– This study aims to examine the role the structure of corporate boards plays in the failure of the firm. Specifically, it examines whether the remuneration committee is related to corporate failure in the UK.

Design/methodology/approach

– The study uses 1,835 firm-year observations for 98 failed and 269 non-failed UK-listed non-financial firms between the periods of 1994 and 2011. This study used pooled cross-sectional, fixed and random effects LOGIT models to estimate whether corporate failure is related to remuneration committee in the UK.

Findings

– The findings indicate that corporate failure is negatively related to the independence of the remuneration committee chairman and remuneration committee’s effectiveness but not remuneration committee’s presence, size and meetings. However, a positive and significant relationship was observed between corporate failure and remuneration committee independence.

Practical implications

– The findings of the study provide support for the appropriateness of agency theory as analytical lens through which to study the efficacy of remuneration committee, especially the independence of the remuneration committee chairperson, as a board monitoring device, in the context of corporate failure.

Originality/value

– The paper adds to existing literature on corporate governance by establishing the likely causes of corporate failure in the UK.
Investigation of the effect of different gravity conditions on penetration mechanisms by the Distinct Element Method
Authors: Jiang Mingjing , Liu Fang , Wang Huaning , Wang Xinxin
Published: September 2015

Purpose

– The purpose of this paper is to present an investigation of the effect of different gravity conditions on the penetration mechanism using the two-dimensional Distinct Element Method (DEM), which ranges from high gravity used in centrifuge model tests to low gravity incurred by serial parabolic flight, with the aim of efficiently analyzing cone penetration tests on the lunar surface.

Design/methodology/approach

– Seven penetration tests were numerically simulated on loose granular ground under different gravity conditions, i.e. one-sixth, one-half, one, five, ten, 15 and 20 terrestrial gravities. The effect of gravity on the mechanisms is examined with aspect to the tip resistance, deformation pattern, displacement paths, stress fields, stress paths, strain and rotation paths, and velocity fields during the penetration process.

Findings

– First, under both low and high gravities, the penetration leads to high gradients of the value and direction of stresses in addition to high gradients in the velocity field near the penetrometer. In addition, the soil near the penetrometer undergoes large rotations of the principal stresses. Second, high gravity leads to a larger rotation of principal stresses and more downward particle motions than low gravity. Third, the tip resistance increases with penetration depth and gravity. Both the maximum (steady) normalized cone tip resistance and the maximum normalized mean (deviatoric) stress can be uniquely expressed by a linear equation in terms of the reciprocal of gravity.

Originality/value

– This study investigates the effect of different gravity conditions on penetration mechanisms by using DEM.
PN Rao Fine Suits: nine decades of family business
Authors: Mehrotra Sonia , Paila Anil Rao
Published: September 2015

Subject area

Entrepreneurship, family business.

Study level/applicability

MBA, executive MBA

Case overview

PN Rao Fine Suits, famously known as the “best tailors” for men's suits and groom wear, started with their first shop in 1923 as a small business of a tailoring shop catering to the needs of the British ladies in Bangalore, India, and by 2013, had four showrooms spread across Bangalore and Chennai, with an annual turnover of INR360 million. Over the years, the patrons of PN Rao have grown not only in Bangalore but across the globe, from countries such as the USA, the UK, Germany, Japan, Denmark, Sweden and The Netherlands. The PN group had three business arms: the PN Rao showrooms, Rupasi and PN Rao Creations. This family business has survived nine decades in business, with the third generation of family now actively involved in the operations and expansion of the business. Chandramohan Pishe and Machender Pishe, the second-generation brothers in the business, believe in a conservative growth path for their brand, compared to the third-generation cousins, Naveen Pishe and Ketan Pishe. Naveen and Ketan are aware of the market opportunities and the competition and often look for the differentiator that their brand can offer. They are very enthusiastic about their future expansion plans and would like to open 100 showrooms by 2023, their centennial year. The market indicators are favourable and, if leveraged strategically, do offer opportunities to fulfil their expansion plans. Naveen and Ketan firmly believe in the need of instituting a family constitution as they move forward with their expansion plans. The second generation is not very confident of this idea, however, as they believe the family values to be strong enough to continue in the same fashion.

Expected learning outcomes

Understand the challenges of a small business and the importance of re-inventing by leveraging a mix of market opportunities to grow and sustain; to evaluate the need and importance of family constitution at the PN Rao Group to sustain, scale and govern in a manner so as to avoid any kind of future family business conflicts.

supplementary materials

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BloodConnect: enriching lives
Authors: Sharma Tripti Ghosh , Tyagi Vishesh Srajan , Sharma Laksh , Banerjee Rupayan
Published: September 2015

Subject area

Social enterprise, Social entrepreneurship.

Study level/applicability

PGDM, PGDM Executive.

Case overview

The case is about the evolution of a unique social organization, BloodConnect, over its journey of four years. Initiated by two Indian Institute of Technology (IIT) Delhi students in 2010, the organization went on to be recognized for making leeway into the hitherto underserved need of blood security in India. The case describes BloodConnect's evolution with respect to different dimensions of blood shortages and the organization's acquisition of knowledge over the years. BloodConnect acted as a facilitator to bring multiple stakeholders, including potential donor segments, beneficiaries, hospitals, government and NGOs, on the same platform to collectively identify solutions, thereby increasing the ownership of each segment toward an issue of importance to the society. While the organization started gaining visibility and was on its way to making its operation structured, it desired to move beyond the confines of Delhi-NCR to raise the movement to the national level, but it was faced with challenges peppered with lack of resources, lack of funds, absence of a permanent leadership and complex dynamics between the multiple stakeholders. Donor dependency for funds and amateur management were the other major impediments for its sustenance. The case brings forth the major challenges threatening the very existence of the organization as it grappled to identify solutions that could provide revenue sustainability without dampening its mission of creating social value. The case is of relevance to social enterprises in the context of a developing nation as most of the low and middle income countries face similar challenges pertaining to blood security. It also brings forth the issues of survival, scalability and the concept of social value measurement. In what are the myriad hurdles faced by start-ups, the traditional metrics might not be enough while measuring the impact created by a social enterprise.

Expected learning outcomes

To develop an insight into the unique challenges faced by start-up social ventures and options available to them for growth and subsequent consolidation. To enhance the understanding of interrelationship between mission focus, scale of operations, revenue sustainability and social impact. To introduce students to the concept of social value measurement. The students would be able to appreciate the uniqueness of the metrics specific to a social venture.

Supplementary materials

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Tariff choice of online contents based on usage goal and self-control: can I control myself?
Authors: Kim Young-Soo , Park Do-Hyung , Park Se-Bum
Published: September 2015

Purpose

– People can easily track and understand their usage pattern for any content (e.g. movies, games) or service (e.g. card payment, cell phone usage) by using technologies such as the internet and smart phones. When consumers evaluate their past consumption patterns, they may experience two different kinds of regret: content-based or monetary-based. The purpose of this paper is to propose that perceived self-control, defined as the extent to which people believe they can control their usage, plays a moderating role in the tariff-choice process (flatrate vs pay-per-use) for two types of content: vice-based and virtue-based.

Design/methodology/approach

– Two laboratory experiments were designed to test the hypotheses. There were a total of 200 participants (86 for Experiment 1 and 114 for Experiment 2) who completed the entire experimental process (i.e. stimulus exposure, questionnaire reporting, dependent variable measurement, manipulation of the independent variables, and control checks).

Findings

– The results of this research provide evidence supporting the role of perceived self-control in tariff preference by showing that preference varies between flat-rate and pay-per-use tariff options. Specifically, virtue-based content users were more likely to prefer the pay-per-use tariff when their perceived self-control was low vs when it was high. In contrast, vice-based content users were more likely to prefer the flat-rate tariff when their perceived self-control was low vs when it was high.

Originality/value

– There are three contributions of the present research. First, the authors investigated the effect of content type on tariff preference. Second, the authors suggest that there is a moderating effect of perceived self-control on tariff preference. Third, this study revealed the factors affecting consumers’ perceived self-control.
E-government development and the digital economy: a reciprocal relationship
Authors: Zhao Fang , Wallis Joseph , Singh Mohini
Published: September 2015

Purpose

– The purpose of this paper is to capture and understand the nature of the relationship between e-government development and the digital economy.

Design/methodology/approach

– Drawing on the Technology Acceptance Model and Fountain’s technology enactment theory, a multidimensional research model was developed. The model was tested empirically through an international study of 67 countries using reputable archival data, primarily including the UN’s e-government survey and the Economist Intelligence Unit’s digital economy rankings.

Findings

– The empirical findings indicate a strong positive reciprocal (two-way) relationship between e-government development and the digital economy. This finding provides empirical evidence to support the general notion of “co-evolution” between technology and organisations. The study also finds that along with social, economic, political, technological and demographic factors, certain national cultural characteristics have significant effects on the digital economy and e-government development.

Research limitations/implications

– Relying on archival global data sets, this study is constrained by the coverage and formulation of the data set indices, the sample size (67 countries), and the impossibility of detecting errors that may occur in the process of data collection. Therefore, caution should be taken when making generalisations about the findings of this study.

Originality/value

– The paper addresses a deficit of empirical research that is supported by sound and established theories to explain short-term dynamics and the long-term impact of the digital economy on public administration. The study contributes to a more accurate and comprehensive understanding of the dynamic relationship between e-government development and the digital economy.
Effects of free gifts with purchase on online purchase satisfaction
Authors: Zhu Dong Hong , Chang Ya Ping , Chang An
Published: September 2015

Purpose

– The purpose of this paper is to understand how free gifts with purchase influence the purchase satisfaction of online consumers, and compares the difference between the contexts, which the consumers are certain and uncertain with the free gifts before purchase.

Design/methodology/approach

– This study developed a theoretical model to examine how free gifts with purchase influence the purchase satisfaction of online consumers. The moderating effect of uncertainty was also examined. Using a survey questionnaire, empirical data were collected from 288 Taobao users. The partial least squares technique was used to test the proposed research model.

Findings

– Perceived usefulness, perceived quality, perceived cost, and perceived ingenuity are antecedents of happiness toward a free gift with purchase. Happiness has a positive effect on the purchase satisfaction of online consumers. Uncertainty is an important moderator.

Research limitations/implications

– The findings extend the current state of knowledge about the relationship between online purchase with free gifts and purchase satisfaction, as well as reveal the psychological mechanism of the effects of online purchase with free gifts on purchase satisfaction.

Practical implications

– The findings of this study provide e-retailers with a deep understanding of how free gifts with purchase affect the purchase satisfaction of online consumers in different presentation approaches of the gifts.

Originality/value

– Knowledge about the role of free gifts with purchase on the purchase satisfaction of online consumers is scarce. This study provides empirical evidence about the effect of free gifts with purchase on the purchase satisfaction of online consumer in different presentation approaches of the gifts.