Mostafa Odabaee, Michel De Paepe, Peter De Jaeger, Christophe T'Joen and Kamel Hooman
The purpose of this paper is to clarify the relationship between dust deposition effects on the thermohydraulic performance of a metal foam heat exchanger.
Abstract
Purpose
The purpose of this paper is to clarify the relationship between dust deposition effects on the thermohydraulic performance of a metal foam heat exchanger.
Design/methodology/approach
The paper uses finite volume approximation to solve the two‐dimensional volume‐averaged form of governing equations through and around a metal foam‐covered tube bundle. Modified porosity, permeability, and form drag coefficient for a dusty foam layer are obtained through the application of a thermal resistance network model.
Findings
The paper provides novel data to predict the fouling effects on the performance of foam‐wrapped tube bundles as air‐cooled heat exchangers. It is observed that depending on the deposited layer thickness, the increased pressure drop and heat transfer deterioration can be very significant.
Originality/value
This paper fulfils an identified need to study fouling effects on thermohydraulic performance of a foam heat exchanger.
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This chapter analyzes events leading to the collapse of President Dilma Rousseff’s parliamentary base that are essential for understanding the impeachment process in 2016. First…
Abstract
This chapter analyzes events leading to the collapse of President Dilma Rousseff’s parliamentary base that are essential for understanding the impeachment process in 2016. First, it assesses structural factors shaping the Brazilian political system and the adaptation strategy of Lula da Silva’s government in its relationship with the National Congress. Next, it analyzes the changing relationship between Dilma Rousseff’s government and Congress, especially the House of Representatives, as the main locus for presidential impeachment actions.
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The purpose of this paper is to examine the potential implications of selecting and developing discrete pools of talent within organizations and to answer the question “If talent…
Abstract
Purpose
The purpose of this paper is to examine the potential implications of selecting and developing discrete pools of talent within organizations and to answer the question “If talent is singled out as a separate group of high‐potential individuals in organizations, what measures could be put in place to help ensure their effectiveness?”
Design/methodology/approach
The paper reviews the literature on talent pools and examines existing case study research, drawing on an analysis of over 50 companies. This analysis was used to draw out aspects which impact the effectiveness of talent pools at particular points in time; from the initial establishment of pool members through to the ongoing maintenance of an established talent pool.
Findings
Findings indicate that during the establishment phase, ensuring appropriate segmentation of the pool and limiting bias in the nomination process were particularly significant. The ongoing maintenance of a successful talent pool was also found to be a challenge from both an organizational and an individual perspective. Specific factors that were identified were dealing with changing business needs; changing individual circumstances; providing development opportunities; maintaining senior commitment; and defining success measures.
Practical implications
The research identifies a number of critical factors that practitioners may need to address in the process of establishing and maintaining talent pools, such as pool segmentation, work‐life balance and the impact on the psychological contract.
Originality/value
The ongoing maintenance of talent pools is rarely discussed in the literature and the recommendations for practice will be relevant for all human resource and organizational development practitioners.
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This chapter reflects upon the main reasons for the universal, deep, and long-lasting impact of the Mexican neozapatista movement during the 25 years of its public life…
Abstract
This chapter reflects upon the main reasons for the universal, deep, and long-lasting impact of the Mexican neozapatista movement during the 25 years of its public life, recuperating not only the immediate reasons but the reasons linked with process in the middle and in the long term. We argue that the neozapatista movement changed the correlation des forces in Mexico in 1994, opening the transition of all indigenous Latin American movements to pass from a defensive and marginal position, to a new offensive and protagonic position. In the general context after 1989 and the fall of the Berlin Wall, the Mexican neozapatism restores hope in social protest and social fight of all the anticapitalistic and antisystemic movements all over the world. With the above basis, it is possible to understand that this Mexican neozapatism was able to define the general agenda of the main demands and targets that were vindicated for the antisystemic movements during the last 25 years, including all the movements of 2011, such as the Spanish Indignados, or the so-called Arab Spring, or Occupy Wall Street, or even the current French movement of the Gilets Jeaunes, among many others. It explains partially the real function of a kind of “avant-garde” of the antisystemic movements all over the world, playing by the Mexican neozapatismo in the last five lusters and even today.
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Debates why and how some practices become universal – taking as a case in point closed‐chest massage (CCCM). Points out that CCCM was recognized in 1960 and its use generated…
Abstract
Debates why and how some practices become universal – taking as a case in point closed‐chest massage (CCCM). Points out that CCCM was recognized in 1960 and its use generated heated debates, which altered the technique and reshuffled existing infrastructures. Claims that debates act as a catalyst for university. Investigates the emergence of CCCM, the debate on the merits (or otherwise) of closed versus open‐chested cardiac massage, and who could use the method of CCCM. Indicates that CCCM only became universally practised when it was incorporated into the infrastructure for dealing with emergency cases, and thus became taken for granted.
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Ursula Oberst, Marc De Quintana, Susana Del Cerro and Andrés Chamarro
This study aims to analyze aspects of decision-making in recruitment. Using a choice-based conjoint (CBC) experiment with typified screening scenarios, it was analyzed what…
Abstract
Purpose
This study aims to analyze aspects of decision-making in recruitment. Using a choice-based conjoint (CBC) experiment with typified screening scenarios, it was analyzed what aspects will be more important for recruiters: the recommendation provided by a hiring algorithm or the recommendation of a human co-worker; gender of the candidate and of the recruiter was taken into account.
Design/methodology/approach
A total of 135 recruitment professionals (67 female) completed a measure of sex roles and a set of 20 CBC trials on the hiring of a pharmacologist.
Findings
Participants were willing to accept a lower algorithm score if the level of the human recommendation was maximum, indicating a preference for the co-worker’s recommendation over that of the hiring algorithm. The biological sex of neither the candidate nor the participant influenced in the decision.
Research limitations/implications
Participants were presented with a fictitious scenario that did not involve real choices with real consequences. In a real-life setting, considerably more variables influence hiring decisions.
Practical implications
Results show that there are limits on the acceptance of technology based on artificial intelligence in the field of recruitment, which has relevance more broadly for the psychological correlates of the acceptance of the technology.
Originality/value
An additional value is the use of a methodological approach (CBC) with high ecological validity that may be useful in other psychological studies of decision-making in management.
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Natalia Rubio, Nieves Villaseñor and María Yagüe
The evolution of private labels (PL) is a recent trend in the retail industry: many retailers now manage a PL portfolio that includes multiple value propositions, as well as…
Abstract
Purpose
The evolution of private labels (PL) is a recent trend in the retail industry: many retailers now manage a PL portfolio that includes multiple value propositions, as well as various brand name strategies. Little research has been done, however, on how this combination of PL strategies conditions the results of the retailer that manages them. This study aims to examine the formation of PL brand equity and its effect on store loyalty for retailers with differently tiered PL programs (a “better” program with standard PL vs a full PL quality spectrum with economy, standard and premium PLs) and different PL naming strategies (store-banner name or stand-alone brand name).
Design/methodology/approach
A survey (N = 644) was used to test the model in the context of the consumer goods retail industry. Exploratory factor analysis, confirmatory factor analysis and multi-group structural equation modelling techniques were used to assess the proposed model.
Findings
The results show differences in the formation of PL loyalty based on whether the retailer has a tiered PL program. In portfolios with economy, standard and premium PLs, PL associations have a stronger effect than PL awareness in the formation of PL loyalty. Portfolios with a standard PL show balanced effects of PL associations and PL awareness on PL loyalty formation. As to the positive effect of PL brand equity on store loyalty, this study also shows a stronger effect of PL brand equity on store loyalty in chains that choose to use their store banner name in their PLs.
Practical implications
Retailers that manage multi-tier PL portfolios (as opposed to those that commercialise a standard PL) can increase loyalty to the PL portfolio significantly by constructing highly differentiated images of their economy, standard and premium PLs to ensure that consumers truly perceive the different value propositions of their PL tiers. As to PL naming strategy, the authors recommend that retailers that use the same retail chain name for one or several of their PLs invest in their corporate reputation to strengthen the brand equity achieved by their PLs and thus increase loyalty to the retail chain. Retailers must perform specific communication and advertising campaigns for PLs with the stand-alone brand name.
Originality/value
Today, any reference to PLs as a whole is overly simplistic, but no research has assessed empirically differences in the influences of a multi-tiered vs a standard PL program on the PL loyalty formation for PL portfolios. Nor has any empirical research incorporated the influence of PL naming strategy on store loyalty. This study fills these gaps, integrating into the same model two significant moderating variables of retailers’ strategy: their PL tier strategy and their PL naming strategy.