23,522 research outputs found
On Machine Capacitance Dimensional and Surface Profile Measurement System
A program was awarded under the Air Force Machine Tool Sensor Improvements Program Research and Development Announcement to develop and demonstrate the use of a Capacitance Sensor System including Capacitive Non-Contact Analog Probe and a Capacitive Array Dimensional Measurement System to check the dimensions of complex shapes and contours on a machine tool or in an automated inspection cell. The manufacturing of complex shapes and contours and the subsequent verification of those manufactured shapes is fundamental and widespread throughout industry. The critical profile of a gear tooth; the overall shape of a graphite EDM electrode; the contour of a turbine blade in a jet engine; and countless other components in varied applications possess complex shapes that require detailed and complex inspection procedures. Current inspection methods for complex shapes and contours are expensive, time-consuming, and labor intensive
Variables Predicting the Severity of a Mass Shooting: the connection to white supremacy
Since mass shootings have become increasingly relevant in today’s society, the subject of what makes a mass shooting deadly has become more and more popular. This project focuses on how selected variables correlate with the severity of a mass shooting, and especially focuses on the impact of white supremacy ideology. Theoretically, a shooter imbued with this ideology will likely be more violent, thus causing a higher victim count (injuries + deaths). The other variables included in the model are: the use of a long gun, the use of multiple guns, the use of semi-automatic guns, mental illness, and shooter suicide. This project seeks to assess the relationships of these variables to the victim count, and the statistical significance of each of these relationships. By drawing from two prominent mass-shooting databases and associated media sources, a dataset was constructed, then analyzed with correlation, regression, and ANOVA. These analyses confirmed all of the hypotheses, with predictor variable correlating positively and significantly to victim count. Most importantly, the findings confirmed the significance of the white supremacy ideology variable in predicting the violence of a mass shooting, and the effect withstood the introduction of a variety of important control variables; in short, shooters with a white supremacy background tend to inflict a higher victim count during a mass shooting. Based on these findings, suggestions for further research include separating active-shooter mass shootings from other types of mass shootings; standardizing the operational definition of a mass shooting; and increasing the number of possible predictor variables in current mass shooting databases
Populist Strategies in African Democracies
Drawing on insights from Latin America, this paper examines the factors that contributed to the use of populist strategies by political parties during recent presidential elections in Kenya, South Africa, and Zambia. Specifically, the paper argues that the nature of party competition in Africa, combined with rapid urbanization and informalization of the labour force, provided a niche for populist leaders to espouse a message relevant to the region’s growing urban poor. Simultaneously, such leaders employed ethno-linguistic appeals to mobilize a segment of rural voters who could form a minimum winning coalition in concert with the urban poor and thereby deliver sizeable electoral victories. While such strategies are similar to those used by Latin American populists, the paper highlights key contrasts as well. By combining crossregional and sub-national perspectives, this paper therefore aims to contribute to a better understanding of how demographic and socioeconomic changes in Africa intersect with voting behaviour and political party development.Africa, democratization, political parties, populism, urbanization, voting behaviour
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Service quality in alcohol treatment: a qualitative study
The objective of the study was to qualitatively evaluate the managerial and organisational issues associated with service quality in a privately funded alcohol treatment centre in the UK. Two different groups of participants at a private treatment clinic were interviewed. The first group comprised 25 of its patients. The second group comprised 15 staff members of the same clinic. All 40 interviews were transcribed and a thematic analysis was performed on the data to reveal the key themes. Six themes emerged from the interviews amongst patients and staff of the treatment clinic. The six themes were: (1) the fellowship of patients, (2) professionalism, (3) process and measurement, (4) incarceration, (5) empathy gap, and (6) access to treatment. Findings suggested there was a strong emphasis on management of the service delivery with established quality systems and performance measurement systems in place. The two service quality gaps, suggested by the research, were the rigid delivery of service and a lack of empathetic relationships with patients. Furthermore, by evaluating the service quality delivery from the service user’s perspective, a voice was given to a group of patients, who in research terms have gone largely unheard
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The role of age and gender in the retail service encounter
Research typically explores the service encounter in relation to the soft and hard skills of front line staff, yet has neglected the role the visible diversity of sales staff have on the interactions between the service deliverer and receiver. This paper therefore attempts to address this gap in knowledge by reporting on how the age and gender of customer facing staff can influence customer evaluations of the retail service encounter in a health and beauty retailer. An analysis of qualitative interviews with forty customers and twenty store staff propose that customers attempt to 'match' and 'mirror' the age and gender of sales staff with their expectations of who should deliver good retail service during the retail service encounter
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Service quality in alcohol treatment: a research note
Purpose - To evaluate service quality in a UK privately funded alcohol treatment clinic. Methodology - Data were gathered via interviews with two groups of participants using the SERVQUAL questionnaire. The first group comprised 32 patients and the second 15 clinic staff. The SERVQUAL instrument measures service quality expectations and perceptions across five service dimensions and identifies gaps between service expectations and perceptions of what was delivered. Findings – Patients’ service quality expectations were exceeded on four of five dimensions. However, staff members felt services fell below expectations on four of five dimensions with the ‘reliability’ service dimension emerging as the common service element falling below expectations for both participant groups. It was concluded that achieving consistent service delivery and increasing empathy between staff and patients improves overall service quality perceptions. Research limitations - Relies on self-report methods from a relatively small number of individuals. Originality - There have been limited research studies measuring alcohol treatment service quality in the private sector
Asymptotic Normality of Degree Counts in a Preferential Attachment Model
Preferential attachment is a widely adopted paradigm for understanding the
dynamics of social networks. Formal statistical inference,for instance GLM
techniques, and model verification methods will require knowing test statistics
are asymptotically normal even though node or count based network data is
nothing like classical data from independently replicated experiments. We
therefore study asymptotic normality of degree counts for a sequence of growing
simple undirected preferential attachment graphs. The methods of proof rely on
identifying martingales and then exploiting the martingale central limit
theorems
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