Placencia, M.E. & Powell, H. (2023). The role of location information sharing in e-service encounters on Mercado Libre. In A. Parini & F. Yus (Eds.), The Discursive Construction of Place in a Digital Age (pp. 210-232). London: Routledge, 2023
Mercado Libre (ML) is the largest platform for e-commerce in Latin America. Off-line location inf... more Mercado Libre (ML) is the largest platform for e-commerce in Latin America. Off-line location information is embedded in the way the company operates: it has many country-specific sites, which also provide users with a choice of administrative area (e.g., a province) for their transactions. These off-line locations allow users to orient themselves before attempting a transaction. An important feature of ML is that it offers users a publicly available space where buyers can post questions and receive answers from sellers about a given product. This space is also where more detailed buyer/seller location information may be shared. Such information can influence how an interaction develops and thus, the success of the transaction; it also has the potential to transform the e-service encounter into a hybrid encounter. Building on work on (mobile) telephony location talk (e.g., Schegloff 1972; de Souza e Silva 2013; Laursen and Szymanski 2013) and technology-mediated communication more widely (e.g., Colbert 1991; Frith 2015), in this chapter we examine the role of location information sharing in ML interactions, based on corpora obtained from ML-Argentina, ML-Ecuador and ML-Mexico. While we find some parallels with the use of location talk in mobile phone conversations, we also encountered some important differences.
This chapter provides an overview of research on speech acts in Spanish in the past 15 years. It ... more This chapter provides an overview of research on speech acts in Spanish in the past 15 years. It starts with a brief presentation of the key tenets of Speech Act Theory as conceived by Austin (1962) and Searle (1969, 1975, 1976), followed by a consideration of the limitations of the theory from a pragmatics perspective. In the second part, an indicative overview of speech acts research in Spanish is offered, with a focus on sociopragmatics, pragmalinguistics, cross-linguistic/cultural, and variational pragmatics studies. General trends are first outlined along various classificatory dimensions, followed by a consideration of studies according to Searle’s (1976) illocutionary acts taxonomy. The chapter concludes with reflections on future research prospects in this vibrant area
We describe schemes for the integration of miniature optical components onto Atom Chips, for the ... more We describe schemes for the integration of miniature optical components onto Atom Chips, for the manipulation and detection of ultra-cold atoms. Our intention is to build detectors sensitive enough to accurately detect single atoms. Two approaches are discussed: simple fluorescence detection and the use of a resonant cavity. Theory predicts that cavities with F>100 should be sufficient to obtain signal to noise ratios high enough to detect single atoms. The first micro cavities were demonstrated using mirrors formed by cleaved fiber ends coated with a stick-on dielectric coating to give F ∼100. A more successful approach involves the full integration of the mirrors and fibers by using Bragg gratings written into the fiber core: it has been possible to form gap cavities with F ~ 150.
Journal of Physics B: Atomic, Molecular and Optical Physics, 2002
The quantum jump statistics for the three stable isotopes of Mg+ have been studied experimentally... more The quantum jump statistics for the three stable isotopes of Mg+ have been studied experimentally. Single ions of magnesium were held and laser cooled in a Penning trap. Quantum jumps were observed by collecting the resonance fluorescence near 280 nm from the cooled ion. The jump rate was analysed to find ratios of the average time the ion spends fluorescing, `on' time, to the average time it spends in the dark state, `off' time: for both 24Mg+ and 26Mg+ this value was found to be 15.91.2, in agreement with a theoretical value of 16.0. The presence of hyperfine structure in 25Mg+ means that while the jump rate for 24Mg+ and 26Mg+ remains unaltered for both available cooling transitions, for the odd isotope the on to off ratio is predicted to be 11.8 and 22.8 for the lower and upper transitions respectively. Experimental values for these ratios were found to be 10.2 0.7 and 22.0 0.6. The occurrence of so-called nuclear jumps in 25Mg+ is investigated qualitatively. These rare jumps are produced as a result of the hyperfine splitting, which is only present in the odd isotope. Although the data indicate some evidence for this type of jump, it is not possible to draw any firm conclusions due to the small number of events observed.
We present work focused on the realization of silicon based optical microcavities on silicon. We ... more We present work focused on the realization of silicon based optical microcavities on silicon. We expect to be able to form "open" cavities between spherical mirrors etched into the silicon and flat mirros placed at the end of a polished optical fibres. By using appropriate isotropic ...
In The Routledge Handbook of Spanish Pragmatics. Foundations and Interfaces, 2020
This chapter offers an introduction to speech act theory and provides an overview of the wealth o... more This chapter offers an introduction to speech act theory and provides an overview of the wealth of research on speech acts among Hispanists over the past 15 years. It considers trends in the area, methodological aspects in the study of speech acts as well as prospects for the future.
Placencia, M.E. & Powell, H. (2023). The role of location information sharing in e-service encounters on Mercado Libre. In A. Parini & F. Yus (Eds.), The Discursive Construction of Place in a Digital Age (pp. 210-232). London: Routledge, 2023
Mercado Libre (ML) is the largest platform for e-commerce in Latin America. Off-line location inf... more Mercado Libre (ML) is the largest platform for e-commerce in Latin America. Off-line location information is embedded in the way the company operates: it has many country-specific sites, which also provide users with a choice of administrative area (e.g., a province) for their transactions. These off-line locations allow users to orient themselves before attempting a transaction. An important feature of ML is that it offers users a publicly available space where buyers can post questions and receive answers from sellers about a given product. This space is also where more detailed buyer/seller location information may be shared. Such information can influence how an interaction develops and thus, the success of the transaction; it also has the potential to transform the e-service encounter into a hybrid encounter. Building on work on (mobile) telephony location talk (e.g., Schegloff 1972; de Souza e Silva 2013; Laursen and Szymanski 2013) and technology-mediated communication more widely (e.g., Colbert 1991; Frith 2015), in this chapter we examine the role of location information sharing in ML interactions, based on corpora obtained from ML-Argentina, ML-Ecuador and ML-Mexico. While we find some parallels with the use of location talk in mobile phone conversations, we also encountered some important differences.
This chapter provides an overview of research on speech acts in Spanish in the past 15 years. It ... more This chapter provides an overview of research on speech acts in Spanish in the past 15 years. It starts with a brief presentation of the key tenets of Speech Act Theory as conceived by Austin (1962) and Searle (1969, 1975, 1976), followed by a consideration of the limitations of the theory from a pragmatics perspective. In the second part, an indicative overview of speech acts research in Spanish is offered, with a focus on sociopragmatics, pragmalinguistics, cross-linguistic/cultural, and variational pragmatics studies. General trends are first outlined along various classificatory dimensions, followed by a consideration of studies according to Searle’s (1976) illocutionary acts taxonomy. The chapter concludes with reflections on future research prospects in this vibrant area
We describe schemes for the integration of miniature optical components onto Atom Chips, for the ... more We describe schemes for the integration of miniature optical components onto Atom Chips, for the manipulation and detection of ultra-cold atoms. Our intention is to build detectors sensitive enough to accurately detect single atoms. Two approaches are discussed: simple fluorescence detection and the use of a resonant cavity. Theory predicts that cavities with F>100 should be sufficient to obtain signal to noise ratios high enough to detect single atoms. The first micro cavities were demonstrated using mirrors formed by cleaved fiber ends coated with a stick-on dielectric coating to give F ∼100. A more successful approach involves the full integration of the mirrors and fibers by using Bragg gratings written into the fiber core: it has been possible to form gap cavities with F ~ 150.
Journal of Physics B: Atomic, Molecular and Optical Physics, 2002
The quantum jump statistics for the three stable isotopes of Mg+ have been studied experimentally... more The quantum jump statistics for the three stable isotopes of Mg+ have been studied experimentally. Single ions of magnesium were held and laser cooled in a Penning trap. Quantum jumps were observed by collecting the resonance fluorescence near 280 nm from the cooled ion. The jump rate was analysed to find ratios of the average time the ion spends fluorescing, `on' time, to the average time it spends in the dark state, `off' time: for both 24Mg+ and 26Mg+ this value was found to be 15.91.2, in agreement with a theoretical value of 16.0. The presence of hyperfine structure in 25Mg+ means that while the jump rate for 24Mg+ and 26Mg+ remains unaltered for both available cooling transitions, for the odd isotope the on to off ratio is predicted to be 11.8 and 22.8 for the lower and upper transitions respectively. Experimental values for these ratios were found to be 10.2 0.7 and 22.0 0.6. The occurrence of so-called nuclear jumps in 25Mg+ is investigated qualitatively. These rare jumps are produced as a result of the hyperfine splitting, which is only present in the odd isotope. Although the data indicate some evidence for this type of jump, it is not possible to draw any firm conclusions due to the small number of events observed.
We present work focused on the realization of silicon based optical microcavities on silicon. We ... more We present work focused on the realization of silicon based optical microcavities on silicon. We expect to be able to form "open" cavities between spherical mirrors etched into the silicon and flat mirros placed at the end of a polished optical fibres. By using appropriate isotropic ...
In The Routledge Handbook of Spanish Pragmatics. Foundations and Interfaces, 2020
This chapter offers an introduction to speech act theory and provides an overview of the wealth o... more This chapter offers an introduction to speech act theory and provides an overview of the wealth of research on speech acts among Hispanists over the past 15 years. It considers trends in the area, methodological aspects in the study of speech acts as well as prospects for the future.
Uploads
Papers by Hebe Powell
An important feature of ML is that it offers users a publicly available space where buyers can post questions and receive answers from sellers about a given product. This space is also where more detailed buyer/seller location information may be shared. Such information can influence how an interaction develops and thus, the success of the transaction; it also has the potential to transform the e-service encounter into a hybrid encounter. Building on work on (mobile) telephony location talk (e.g., Schegloff 1972; de Souza e Silva 2013; Laursen and Szymanski 2013) and technology-mediated communication more widely (e.g., Colbert 1991; Frith 2015), in this chapter we examine the role of location information sharing in ML interactions, based on corpora obtained from ML-Argentina, ML-Ecuador and ML-Mexico. While we find some parallels with the use of location talk in mobile phone conversations, we also encountered some important differences.
An important feature of ML is that it offers users a publicly available space where buyers can post questions and receive answers from sellers about a given product. This space is also where more detailed buyer/seller location information may be shared. Such information can influence how an interaction develops and thus, the success of the transaction; it also has the potential to transform the e-service encounter into a hybrid encounter. Building on work on (mobile) telephony location talk (e.g., Schegloff 1972; de Souza e Silva 2013; Laursen and Szymanski 2013) and technology-mediated communication more widely (e.g., Colbert 1991; Frith 2015), in this chapter we examine the role of location information sharing in ML interactions, based on corpora obtained from ML-Argentina, ML-Ecuador and ML-Mexico. While we find some parallels with the use of location talk in mobile phone conversations, we also encountered some important differences.