Can We Scale Up Goffman? From Vegas to the World Stage

It is an all-too-common lament among sociologists that Erving Goffman, though his writings remain widely read and respected today, failed to spawn an ongoing and cohesive research tradition. His idiosyncratic methods of data collection, the uniqueness of his biographical trajectory, and even his prickly personality have all been invoked to explain the lack of a distinctly Goffmanian school of research (Gamson 1985; Scheff, Phillips, and Kincaid 2006; Smith 2006; Shalin 2014). It is also the case that micro-oriented sociologies, such as symbolic interactionism and especially ethnomethodology, have been pushed to the margins of sociology as a consequence of the ascendency of quantitative methods. This paper is, on one level, an argument for continuing to read Goffman as a seminal figure in the sociology of everyday life. But it is more than this. It is an argument that we should be ambitious about using Goffman to generate and develop theories about other levels of social reality, including the most macro of them all: the global level. I make this argument through recounting my own experience attempting to replicate Goffman’s famed ethnographic research as a casino dealer in Las Vegas

Efficacy of utilizing SolidWorks Finite Element Analysis for design of composite I-beam wing spars in UAVs

Labs in which unmanned composite aircraft are produced by Oklahoma State University currently lack the capability to adequately analyze wing structural designs computationally. This is especially true regarding the design of the main composite wing spar. Within these labs, utilization of SolidWorks for modeling and CFD analysis of designs to be built is commonplace. It would be advantageous to capitalize on this familiarity with SolidWorks to extend pre-prototype analysis capabilities by utilizing the SolidWorks FEA package to analyze wing spars designed for both graduate level and undergraduate capstone projects. Proof of good correlation between experimental 3-Point Bending testing and FEA results for these composite spars would allow for further pre-prototype structural refinement, thus reducing the man hours and material costs associated with the prototyping phase. To this end, this research endeavor seeks to determine the feasibility of various Finite Element Modeling techniques through direct comparison of FEA results with both experimentation and existing Beam Theory methods. Initial baseline testing of isotropic aluminum beams established the proper procedures for boundary and loading condition application as well as for model meshing. Results from these baseline tests further established that SolidWorks FEA is capable of predicting deflection, bending stress, and shear stress to within ~16%, ~8%, and ~13% on average, respectively. Main testing of the composite I-beams revealed that both fully orthotropic FEA models and existing Beam Theory models struggled to correctly predict experimental deflection of the I-beams, with percent errors of ~81% and ~89%, respectively. In addition, the orthotropic models also struggled to replicate measured strains. Due to stress concentrations present in these FEA solutions at the locations of the supports and the applied load, errors here exceeded 130%. Similar orthotropic model performance was confirmed in other FEA programs such as Ansys. Ultimately, utilization of a modeling method by which the composite and orthotropic nature of the I-beams are reduced to an equivalent isotropic representation produced the best beam deflection solution at an average error of ~8% with experimentation. Prediction of bending and shear stresses with this idealizing method were consistent with the performance of existing Beam Theory analysis tools

Design and construction of a Cherenkov imager for charge measurement of nuclear cosmic rays

A proximity focusing Cherenkov imager called CHERCAM, has been built for the charge measurement of nuclear cosmic rays with the CREAM instrument. It consists of a silica aerogel radiator plane across from a detector plane equipped with 1,600 1" diameter photomultipliers. The two planes are separated by a ring expansion gap. The Cherenkov light yield is proportional to the charge squared of the incident particle. The expected relative light collection accuracy is in the few percents range. It leads to an expected single element separation over the range of nuclear charge Z of main interest 1 < Z < 26. CHERCAM is designed to fly with the CREAM balloon experiment. The design of the instrument and the implemented technical solutions allowing its safe operation in high altitude conditions (radiations, low pressure, cold) are presented.Comment: 24 pages, 19 figure

The AMS-RICH velocity and charge reconstruction

The AMS detector, to be installed on the International Space Station, includes a Ring Imaging Cerenkov detector with two different radiators, silica aerogel (n=1.05) and sodium fluoride (n=1.334). This detector is designed to provide very precise measurements of velocity and electric charge in a wide range of cosmic nuclei energies and atomic numbers. The detector geometry, in particular the presence of a reflector for acceptance purposes, leads to complex Cerenkov patterns detected in a pixelized photomultiplier matrix. The results of different reconstruction methods applied to test beam data as well as to simulated samples are presented. To ensure nominal performances throughout the flight, several detector parameters have to be carefully monitored. The algorithms developed to fulfill these requirements are presented. The velocity and charge measurements provided by the RICH detector endow the AMS spectrometer with precise particle identification capabilities in a wide energy range. The expected performances on light isotope separation are discussed.Comment: Contribution to the ICRC07, Merida, Mexico (2007); Presenter: F. Bara

The RICH detector of the AMS-02 experiment: status and physics prospects

The Alpha Magnetic Spectrometer (AMS), whose final version AMS-02 is to be installed on the International Space Station (ISS) for at least 3 years, is a detector designed to measure charged cosmic ray spectra with energies up to the TeV region and with high energy photon detection capability up to a few hundred GeV. It is equipped with several subsystems, one of which is a proximity focusing RICH detector with a dual radiator (aerogel+NaF) that provides reliable measurements for particle velocity and charge. The assembly and testing of the AMS RICH is currently being finished and the full AMS detector is expected to be ready by the end of 2008. The RICH detector of AMS-02 is presented. Physics prospects are briefly discussed.Comment: 5 pages. Contribution to the 10th ICATPP Conference on Astroparticle, Particle, Space Physics, Detectors and Medical Physics Applications (Como 2007). Presenter: Rui Pereir

A smart place to work? Big data systems, labour, control and modern retail stores

The modern retail store is a complex coded assemblage and data-intensive environment, its operations and management mediated by a number of interlinked big data systems. This paper draws on an ethnography of a retail store in Ireland to examine how these systems modulate the functioning of the store and working practices of employees. It was found that retail work involves a continual movement between a governance regime of control reliant on big data systems which seek to regulate and harnesses formal labour and automation into enterprise planning, and a disciplinary regime that deals with the symbolic, interactive labour that workers perform and act as a reserve mode of governmentality if control fails. This continual movement is caused by new systems of control being open to vertical and horizontal fissures. While retail functions as a coded assemblage of control, systems are too brittle to sustain the governmentality desired

Reduced human disturbance increases diurnal activity in wolves, but not Eurasian lynx

Wildlife in the Anthropocene is increasingly spatially and temporally constrained by lethal and non-lethal human disturbance. For large carnivores with extensive space requirements, like wolves and Eurasian lynx, avoiding human disturbance in European landscapes is challenging when sufficient space with low disturbance is rarely available. Consequently, investigating behavioural adjustments to human presence is critical to understanding the capacity to adapt to human disturbance. We hypothesised that under low human disturbance conditions, large carnivores would adjust their temporal behaviours to make use of daytime, and when daytime human disturbance is high, they would opt for nocturnality. Using camera trap data from nine European study sites along a gradient in human disturbance, we analysed wolf and Eurasian lynx activity patterns. Our data spanned multiple years, 2014 – 2022, and we focused our analysis on September until April, when most large carnivore monitoring takes place. For wolves, our analysis revealed i) increased nocturnal behaviour, ii) decreased diurnal overlap with increasing human activity, and iii) a significant association between a higher probability of nocturnal activity and increasing human disturbance. For Eurasian lynx, we found iv) consistently nocturnal behaviours across all study sites, regardless of human disturbance, and v) no association between human disturbance and increased probability of being active during the night. Our results show that wolves can adjust to diurnal or cathemeral behaviours under low human disturbance, but shift to nocturnality when human disturbance increases. Eurasian lynx, however, consistently maintain their nocturnal behaviour, which we attribute to their principal hunting strategy of stalk and ambush. If human disturbance constrains large carnivore activity to nighttime, it could influence their interactions with prey, leading to cascading effects in the ecosystem. On the other hand, maintaining nocturnal behaviours in human-dominated landscapes may benefit large carnivore conservation, by decreasing negative interactions with humans thereby contributing to a landscape of coexistence

CHERCAM: A Cherenkov imager for the CREAM experiment

International audienceThe CREAM experiment (Cosmic Ray Energetics and Mass) is dedicated to the measurement of the energy spectrum of nuclear elements in cosmic rays, over the range 10$^{12}$ to 10$^{15}$ eV. The individual elements separation, which is a key feature of CREAM, requires instruments with strong identification capabilities. A proximity focused type of Cherenkov imager, CHERCAM (CHERenkov CAMera), providing both a good signature of downgoing Z=1 particles and good single element separation through the whole range of nuclear charges [Buénerd et al. 28th ICRC, Tsukuba, OG 1.5, 2003, p. 2157], is under development. After a brief introduction, the main features and the construction status of the CHERCAM are being summarized

A Cherenkov imager for charge measurements of Nuclear Cosmic Rays in the CREAM II instrument

A proximity focusing Cherenkov imager for the charge measurement of nuclear cosmic rays in the CREAM II instrument, called CHERCAM, is under construction. This imager consists of a silica aerogel radiator plane facing a detector plane equipped with standard photomultipliers. The two planes are separated by a minimal ring expansion gap. The Cherenkov light yield is proportional to the squared charge of the detected particle. The expected relative light collection accuracy is in the few percents range. It should lead to single element separation over the range of nuclear charge Z of main interest 1 $leq$ Z $<$\approx$ 26