Pilar Rivera

Using the comet assay technique, this paper examines the protection from the cisplatin-induced ge... more Using the comet assay technique, this paper examines the protection from the cisplatin-induced genetic damage in mouse bone marrow cells provided by cedron-leaf infusion. Animals were separated into six groups: (I) untreated, (II) negative control, (III) treated with cedron-leaf infusion (5%), (IV) treated with cisplatin (6 mg/kg b.w.), (V) pretreated with infusion and treated with cisplatin and (VI) positive control (cyclophosphamide, 20 mg/kg b.w.). Based on the tail moment values found, four types of comets were distinguished. No statistical differences (P<0.01) were found between untreated animals, negative control and infusion treated mice. As expected, treatment of mice with a single dose of cis-DDP-induced genetic damage and the pretreatment with infusion prior to cis-DDP injection inhibited the capacity of cisplatin to induce genetic damage. Cell viability was up to 90% in all cases. The results suggest that infusion could exert its in vivo antigenotoxic action by enhancing the antioxidant status of bone marrow cells. The found could be attributed to its scavenging potency towards free radicals.

Modelling of customer retention in multi-format retailing

The International Review of Retail, Distribution and Consumer Research, 2002

The objective of this study is to offer a model of the formation process of loyalty towards the s... more The objective of this study is to offer a model of the formation process of loyalty towards the services provided by retail food companies. Specifically, the case of a Spanish company, which is a leader in the retail food market is taken. The company operates using different retail formats, and it has customers with various levels of loyalty and behavioural patterns. The research tries to determine implications for managing the loyalty towards the company. Different customer groups are analysed. Four working hypotheses are proposed and contrasted through the formulation and estimation of two theoretical models or conceptual maps. After the empirical analysis, the proposed models show a good fit, and the formulated hypotheses are confirmed. By using this kind of modelling, the companies that operate under the considered framework may reach significant conclusions prior to making decisions in the area of customer retention.

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Urban Waste Recycling Behavior: Antecedents of Participation in a Selective Collection Program

Environmental Management, 2002

The aim of this study is to analyze the antecedents of urban waste recycling behavior. To achieve... more The aim of this study is to analyze the antecedents of urban waste recycling behavior. To achieve this goal, a concrete urban waste management program was chosen. The study focuses on the Selective Collection Program (SCP) in Zaragoza, a medium-sized city in northeastern Spain. The research starts with a conceptual model in which the variables that potentially affect recycling behavior can be classified into two groups: incentives and barriers. Moreover, the sociodemographic characteristics of the individuals are included in our study. Given that the proposed model requires specification of latent variables or constructs, the analysis is based on the Structural Equation Models (SEM) methodology. The results revealed that environmental awareness, knowledge of the environmental impact of urban waste, and the positive perception of management by local government exercise a positive effect on individual recycling behavior, while perceived personal difficulties (space and time availability) and distance to and from the container have a negative effect. As regards sociodemographic variables, this study found that annual family income sustains a negative relationship with recycling behavior, while age maintains a positive one. The results obtained clearly show the important role that the public authorities play, especially municipal governments, in achieving the waste recycling objectives established in accordance with international legislation.

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Factors involved in price information-seeking behaviour

Journal of Retailing and Consumer Services, 2001

The aim of this study is to analyse price information seeking behaviour (PISB) in the retail groc... more The aim of this study is to analyse price information seeking behaviour (PISB) in the retail grocery market. More speci"cally, we test the explanatory power of a number of variables on PISB, applying the premises implicit in the model proposed by Urbany et al. (1996, Journal of Marketing 60, 91}104). The main conclusions drawn are: (i) in contrast to the proposals in the literature, neither the items considered as economic savings, nor those considered as the search limitations perceived by the consumer show any common structure; (ii) the greatest predictive power is shown by human ability; (iii) whilst psychosocial bene"ts also show a signi"cant predictive power, it is only the market maven that shows a positive and signi"cant coe$cient; (iv) the higher the age of the consumer, the greater his/her tendency to compare prices.

format_quoteEconomic savings and search limitations did not maintain a common structure as expected, indicating complexities in consumer behavior models.format_quote

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The managerial ability to control the varied behaviour of regular customers in retailing: interformat differences

Journal of Retailing and Consumer Services, 2005

The objectives are to provide a model to estimate the amount of varied behaviour (VB) of retail c... more The objectives are to provide a model to estimate the amount of varied behaviour (VB) of retail customers that might be controlled by managers, and to find if the store format determines differences in the potential level of controllable VB, and in the management tools. We apply a multi-sample SEM estimation of the management model to the operation of a grocery multi-format retailer. The first finding is that the VB is only partially determined by the managerial action. The second major finding is that the store format determines differences in the amount of controllable VB and in its management. r * What are the antecedents of customer varied behaviour? * How much of the varied behaviour of regular customers could be addressed by retail managers?

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Modelling of customer retention in multi-format retailing

The International Review of Retail, Distribution and Consumer Research, 2002

The objective of this study is to offer a model of the formation process of loyalty towards the s... more The objective of this study is to offer a model of the formation process of loyalty towards the services provided by retail food companies. Speci cally, the case of a Spanish company, which is a leader in the retail food market is taken. The company operates using different retail formats, and it has customers with various levels of loyalty and behavioural patterns. The research tries to determine implications for managing the loyalty towards the company. Different customer groups are analysed. Four working hypotheses are proposed and contrasted through the formulation and estimation of two theoretical models or conceptual maps. After the empirical analysis, the proposed models show a good t, and the formulated hypotheses are con rmed. By using this kind of modelling, the companies that operate under the considered framework may reach signi cant conclusions prior to making decisions in the area of customer retention.

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guia de operaciones

The International Review of Retail, Distribution and Consumer Research, 1999

The purpose of this paper is to analyse the potential of price-information-seeking behaviour (PIS... more The purpose of this paper is to analyse the potential of price-information-seeking behaviour (PISB) as a basis for pricing differentiation in the retail grocery market. Based on a model developed by , we analyse the presence of consumer clusters showing differences in their PISB and the possibility of identifying a particular pro le for each of the clusters. The cluster analysis identi ed two clearly separated clusters: high and low intensity price-information seekers. Based on this clustering, a discriminant analysis revealed that some of the independent variables proved to be good descriptors of the consumer pro le of the clusters. The joint consideration of the clusters and their pro les allows us to provide some managerial implications for retailers.

format_quoteCluster analysis revealed two distinct consumer groups: 44% intensive price-information seekers and 55% light seekers, shaping targeted pricing strategies.format_quote

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Urban Waste Recycling Behavior: Antecedents of Participation in a Selective Collection Program

Environmental Management, 2002

The aim of this study is to analyze the antecedents of urban waste recycling behavior. To achieve... more The aim of this study is to analyze the antecedents of urban waste recycling behavior. To achieve this goal, a concrete urban waste management program was chosen. The study focuses on the Selective Collection Program (SCP) in Zaragoza, a medium-sized city in northeastern Spain. The research starts with a conceptual model in which the variables that potentially affect recycling behavior can be classified into two groups: incentives and barriers. Moreover, the sociode-mographic characteristics of the individuals are included in our study. Given that the proposed model requires specification of latent variables or constructs, the analysis is based on the Structural Equation Models (SEM) methodology. The results revealed that environmental awareness, knowledge of the environmental impact of urban waste, and the positive perception of management by local government exercise a positive effect on individual recycling behavior, while perceived personal difficulties (space and time availability) and distance to and from the container have a negative effect. As regards sociodemographic variables, this study found that annual family income sustains a negative relationship with recycling behavior, while age maintains a positive one. The results obtained clearly show the important role that the public authorities play, especially municipal governments, in achieving the waste recycling objectives established in accordance with international legislation.

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The recycling of container and packaging waste in the Spanish retail distribution sector

Environment and Planning A, 2005

The authors analyse the determinants of the commercial container recycling behaviour of small and... more The authors analyse the determinants of the commercial container recycling behaviour of small and medium-sized companies in the retail-distribution sector of a representative Spanish city. A conceptual model is proposed, based on the literature on the incentives for and ...

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