Digital Shopper Insights: Understanding Generational Perspectives on Mobile Commerce

The purpose of this study was to identify the perceptions of consumers regarding the use of smartphones to shop and to determine the extent of influence age has on their intentions to use their smartphones to shop. A quantitative, descriptive research design was conducted to examine the perceptions of consumers regarding the use of smartphone-based shopping. The findings revealed that Gen Zers, Millennials, and Gen Xers reported positive perceptions about using their smartphones to shop online. Boomers were consistently more unsure in their responses. The three generation groups (Gen Zers, Millennials, Gen Xers) agreed that using their smartphones to shop was useful and easy to do. Boomers were undecided in their responses. Although, the Gen Zers, Millennials, and Gen Xers reported consistently positive beliefs about shopping using their smartphones, these groups tend to report similar views as the Boomers about their intentions to use the devices to shop. All four groups were indecisive regarding whether they planned to mobile shop with their smartphones in the future

Institutional Barriers to Black and Latino Male Collegians’ Success in Engineering and Related STEM Fields

Diverse people and perspectives are needed to spur innovation and tackle societal problems. A wealth of untapped intellectual and economic potential exists among historically underrepresented racial/ethnic groups – including Blacks and Latinos – who have not had equitable access to engineering and related STEM fields. For Blacks and Latinos who are accepted into engineering and related STEM fields, they face a number of barriers to their success which lead to low retention and graduation rates. In historically male-dominated fields such as engineering and related STEM disciplines, Black and Latino men have remained underrepresented at the student and faculty ranks. To uncover and tackle the “institutional barriers” that men of color face, nearly 50 interviews with Black and Latino collegians were analyzed to better understand the mechanisms that prevent them from maximizing their potential for success in engineering and related STEM fields. Interviews revealed that students must overcome institutional obstacles such as: (a) inadequate academic advising, (b) poor quality teaching, (c) limited course offerings, and (d) insufficient financial aid. This paper includes recommendations that are helpful to faculty, staff and administrators who are interested in increasing the number of Black and Latino male graduates in engineering and related STEM fields

What predicts persistent early conduct problems? Evidence from the Growing Up in Scotland cohort

Background: There is a strong case for early identification of factors predicting life-course-persistent conduct disorder. The authors aimed to identify factors associated with repeated parental reports of preschool conduct problems. Method: Nested caseecontrol study of Scottish children who had behavioural data reported by parents at 3, 4 and 5 years. Results: 79 children had abnormal conduct scores at all three time points ('persistent conduct problems') and 434 at one or two points ('inconsistent conduct problems'). 1557 children never had abnormal scores. Compared with children with no conduct problems, children with reported problems were significantly more likely to have mothers who smoked during pregnancy. They were less likely to be living with both parents and more likely to be in poor general health, to have difficulty being understood, to have a parent who agrees that smacking is sometimes necessary and to be taken to visit other people with children rarely. The results for children with persistent and inconsistent conduct problems were similar, but associations with poverty and maternal smoking were significantly less strong in the inconsistent group. Conclusion: These factors may be valuable in early identification of risk of major social difficulties

Issues of belonging, pedagogy and learning in doctoral study at a distance

In this paper we present a case study of doctoral study at a distance, and we explore issues of belonging, pedagogy and learning as part of that process. As a team of one doctoral researcher and three supervisors, we critically reflect on the place of belonging in the context of doctoral study by distance. In this case study, the importance of belonging was heightened due to a high-risk and highly volatile context in which the doctoral researcher lived, the Kurdistan Region of Iraq. We further explore the elements that developed a sense of belonging, aided by a range of digital technologies. Our findings suggest that the place of belonging in learning needs further examination in higher education contexts, especially when universities are keen to increase distance enrolments

Re-living First Year -the first weeks

Abstract Using data from a survey and interviews with Firs

Rapid reserve generation from a Francis Turbine for system frequency control

The increase in contributions from non base load renewables, such as wind and solar,can have adverse effects on the stability of an electrical grid. In this study, the possibility of rapidlyloading a Francis turbine from a tail water depression (TWD) mode for providing additional systemfrequency control is investigated. Based on the analysis of full-scale TWD test results and keyfindings from the transient testing of a micro-hydro scale turbine unit, a detailed description ofthe TWD transition process is given. The formulation of an improved turbine model for use inone-dimensional hydro-electric plant models is presented with simulation results compared tofull-scale data. The analytical model, which calculates output power according to the conservation ofangular momentum and identified sources of loss, is used in parallel with full-scale and model scaletest observations to elucidate the events and mechanisms occurring during this proposed transition.The output response, in terms of active power, was found to be highly dependent on guide vaneopening rate in both full-scale and model tests. For an approximate doubling in opening rate, theduration of the reverse power flow was reduced by 38% and 21%, for full-scale and model units,while the low pressure transient increased by 16% and 8%, respectively. The analytical model wasshown to capture the general response characteristic in all cases tested; however, output powerresponse was over predicted due to two identified model assumptions made, while, for the morerapid opening, the penstock pressure was under predicted by approximately 15%

The two homologous chaperonin 60 proteins of Mycobacterium tuberculosis have distinct effects on monocyte differentiation into osteoclasts.

Mycobacterium tuberculosis produces two homologous chaperonin (Cpn)60 proteins, Cpn60.1 and Cpn60.2 (Hsp65). Both proteins stimulate human and murine monocyte cytokine synthesis but, unlike Cpn60 proteins from other microbial species, fail to stimulate the breakdown of cultured murine bone. Here, we have examined the mechanism of action of these proteins on bone remodelling and osteoclastogenesis, induced in vitro in murine calvarial explants and the murine monocyte cell line RAW264.7. Additionally, we have determined their effect on bone remodelling in vivo in an animal model of arthritis. Recombinant Cpn60.1 but not Cpn60.2 inhibited bone breakdown both in vitro, in murine calvaria and in vivo, in experimental arthritis. Analysis of the mechanism of action of Cpn60.1 suggests that this protein works by directly blocking the synthesis of the key osteoclast transcription factor, nuclear factor of activated T cells c1. The detection of circulating immunoreactive intact Cpn60.1 in a small number of patients with tuberculosis but not in healthy controls further suggests that the skeleton may be affected in patients with tuberculosis. Taken together, these findings reveal that M. tuberculosis Cpn60.1 is a potent and novel inhibitor of osteoclastogenesis both in vitro and in vivo and a potential cure for bone-resorptive diseases like osteoporosis