Should charity begin at home? An empirical investigation of consumers’ responses to companies’ varying geographic allocations of donation budgets

In our globalized and interconnected world, companies are increasingly donating substantial amounts to good causes around the globe. Many companies choose to donate “at home” while others give to causes in faraway places where recipients are in dire need of support. Interestingly, past research on corporate donations has neglected the question of whether consumers differentially reward companies for geographically varying allocations of donation budgets. Through a mixed methods approach, this paper remedies this gap by developing and empirically testing a conceptual framework of consumers’ preferences for geographically varying allocations of corporate donation budgets. In a first step, two preliminary field studies (N 1 = 76; N 2 = 80) involving real donations explored customers’ preferences for donation allocations varying in geographical focus. A qualitative focus group study then investigated underlying rationales to inform the research and led to the development of hypotheses. Subsequently a large-scale between-subjects scenario experiment (N = 5770) tested the predictions. Overall, results indicate that, in contrast with current managerial practice, customers prefer companies that split donations equally between domestic and foreign recipients or even donate only abroad

Host Control of Malaria Infections: Constraints on Immune and Erythropoeitic Response Kinetics

The two main agents of human malaria, Plasmodium vivax and Plasmodium falciparum, can induce severe anemia and provoke strong, complex immune reactions. Which dynamical behaviors of host immune and erythropoietic responses would foster control of infection, and which would lead to runaway parasitemia and/or severe anemia? To answer these questions, we developed differential equation models of interacting parasite and red blood cell (RBC) populations modulated by host immune and erythropoietic responses. The model immune responses incorporate both a rapidly responding innate component and a slower-responding, long-term antibody component, with several parasite developmental stages considered as targets for each type of immune response. We found that simulated infections with the highest parasitemia tended to be those with ineffective innate immunity even if antibodies were present. We also compared infections with dyserythropoiesis (reduced RBC production during infection) to those with compensatory erythropoiesis (boosted RBC production) or a fixed basal RBC production rate. Dyserythropoiesis tended to reduce parasitemia slightly but at a cost to the host of aggravating anemia. On the other hand, compensatory erythropoiesis tended to reduce the severity of anemia but with enhanced parasitemia if the innate response was ineffective. For both parasite species, sharp transitions between the schizont and the merozoite stages of development (i.e., with standard deviation in intra-RBC development time ≤2.4 h) were associated with lower parasitemia and less severe anemia. Thus tight synchronization in asexual parasite development might help control parasitemia. Finally, our simulations suggest that P. vivax can induce severe anemia as readily as P. falciparum for the same type of immune response, though P. vivax attacks a much smaller subset of RBCs. Since most P. vivax infections are nonlethal (if debilitating) clinically, this suggests that P. falciparum adaptations for countering or evading immune responses are more effective than those of P. vivax

Vocatives in service encounters: evidence from Greek

The aim of the study is to investigate the use of vocatives in face-to-face interactions in Greek shops. In particular, we concentrate on the types of vocatives attested, their position and function within the exchange, and their association with politeness. The analysis of an extensive corpus of service encounters (SEs) reveals that vocatives are not particularly common in such contexts and that they are mostly used to index familiarity. Such use of vocatives as positive politeness strategies is compatible not only with Greek speakers’ orientation toward positive politeness, but also with the importance attached to the establishment of rapport and familiarity during SEs as a means of enhancing service quality and customer satisfaction. © 2019, © 2019 The Linguistic Circle of Copenhagen

Advances in quantifying marine litter to support waste management decision-making in local authorities of the Global South

ISW

A Knowledge Base for the Recovery of Natural Phenols with Different Solvents

The current study denotes the prediction of activity coefficients of fifteen natural phenols (tyrosol, hydroxytyrosol, oleuropein, caffeic, cinnamic, p-coumaric, ferulic, gallic, p-hydroxybenzoic, p-hydroxyphenyl acetic, protocatechuic, rosmarinic, sinapic, syringic, and vanillic acid) in seven solvents (water, ethanol, methanol, acetone, dichloromethane, ethyl acetate, and diethyl ether), and three extraction temperatures (298.15, 313.15, and 333.15 K), using the universal functional-group activity coefficient model. Solvents were classified for their ability to dissolve phenols and were compared with experimental data of the literature in order to observe if the solvent extraction of phenols in practice matches with the authors theoretical approach. Results indicated the superiority of alcohols and acetone for the recovery of phenols in line with experimental data of previous studies. Furthermore, activity coefficients values were found to increase with the increase of temperature. This study provided a knowledge base for the selection of the most appropriate solvents for a given phenolic compoun