ICT skills acquisition by older people: motivations for learning and barriers to progression

This paper reports findings from one strand of an extensive research project investigating digital engagement of older people and the risks to sustained usage of information and communication technologies (ICTs). The factors that motivate older people to learn about ICTs, the barriers they face in the learning process and with on-going ICT use are examined. Research methods included focus groups (28 ICT learners aged 50+); questionnaires and interviews with seven 50+ learners; three interviews with ICT tutors; and observation sessions in three different ICT learning and support environments in England and Scotland. Findings show that while learning to use ICTs to ease the mechanics of daily life (e.g. on-line shopping) was a motivating factor for some, the more powerful drivers tended to be those applications seen as enriching quality of life e.g. using ICTs to keeping in contact with family and friends and using ICTs in pursuit of passions and interests. The key barriers relate to fear of using a computer; learning suppo rt ; quality and provision of ICT training; cost of training and technology; memory problems, and technology barriers. Implications of these findings for service providers, ICT designers and policy makers are identified and discussed

Falling Off the Bandwagon? Exploring the Challenges to Sustained Digital Engagement by Older People

Objectives: This study examines older people’s use of information and communication technologies (ICTs) and identifies the factors which can prevent or promote their sustained use. Methods: A mixed methods approach was adopted. Quantitative and qualitative data were collected by a survey of 323 older ICT users (aged 50+) between 2011 and 2012. These data were supplemented by qualitative data obtained through in-depth interviews, focus groups,and story-telling. Quantitative data were analysed using PASW including bivariate and multivariate analyses. Qualitative data were analysed using an inductive, thematic approach. Results: The findings show that, contrary to some stereotypes, many older people are enthusiastic, competent and confident users of ICTs. However they report a range of challenges in reaching and maintaining this situation. These include technological complexity and change, age-related capability changes and a lack of learning and support mechanisms. Intrinsic motivation and social support are important in enabling older people to overcome these challenges. Discussion: Getting older people online has been a high priority in many countries over the past decade. However, little attention has been paid to whether and how their usage can be sustained over time. We discuss the implications of the findings for policy and practice

Pulsed Ultrasound Does Not Affect Recovery From Delayed Onset Muscle Soreness

Aim: To investigate the effects of pulsed Ultrasound (US) in recovery from Delayed Onset Muscle Soreness (DOMS). Methods: Twelve healthy male athletes (mean age 23.83±1.697 year) performed an eccentric exercise protocol of non-dominant elbow flexors to induce muscle soreness on 2 occasions separated by 3 weeks. Subjects in experimental group received pulsed US (1 MHz, intensity 0.8 W/cm2, mark space ratio 1:10), whereas control group received sham US after 24 h, 48 h and 72 h. Perception of muscle soreness, active ROM and muscle strength were the parameters measured at 0 h, 24 h, 48 h and 72 h with the help of VAS, manual goniometer and JONEX muscles master instrument respectively. Results: Post hoc t test analysis revealed significant differences (p <0.05) between 0 h and 72 h in the parameter of ROM (t = 6.18) and muscle power (t = 2.54) as well as between 24 h and 48 h in the parameter of muscle soreness (t = 3.13) in control group. Similar differences were also observed in the experimental group. No significant inter-group differences at α level of 0.05 was observed in any parameter at any level. Conclusion: The pattern of recovery from DOMS was not influenced by the application of pulsed Ultrasound at the parameters discussed here

Ultrafast relaxation of hot phonons in Graphene-hBN Heterostructures

Fast carrier cooling is important for high power graphene based devices. Strongly Coupled Optical Phonons (SCOPs) play a major role in the relaxation of photoexcited carriers in graphene. Heterostructures of graphene and hexagonal boron nitride (hBN) have shown exceptional mobility and high saturation current, which makes them ideal for applications, but the effect of the hBN substrate on carrier cooling mechanisms is not understood. We track the cooling of hot photo-excited carriers in graphene-hBN heterostructures using ultrafast pump-probe spectroscopy. We find that the carriers cool down four times faster in the case of graphene on hBN than on a silicon oxide substrate thus overcoming the hot phonon (HP) bottleneck that plagues cooling in graphene devices.Comment: Pages 1-12: Main manuscript. Pages 13-18: Supplementary materia

The birth mother and the evolution of adoption policy and practice in England since 1926

This PhD is an empirical investigation of how the evolution of adoption agency policy and practice in the twentieth century has impacted upon birth mothers’ motives for relinquishment, and their experiences of adoption. It examines how birth mothers have reached decisions about the adoption of their children, their role in the adoption process and how these answers have varied historically. Further, it attempts to understand the relationship between birth mothers’ experiences and wider moral, social and policy environments and how adoption agencies have mediated that relationship. Attitudes towards initiating and maintaining contact are also examined. Understanding changes in birth mothers’ options, motives and experiences of adoption have important implications for the adoption support services offered by adoption agencies. This thesis used a mixed methods approach, combining documentary analysis, with interviews and focus groups. This PhD draws upon archival materials collated from adoption case files, adoption panel meeting minutes (APMM), annual reports and other official documentation. It also utilizes evidence collated interviews carried out with six former Family Care personnel and professionals from six other adoption agencies, along with two focus groups carried out with the seven members of Family Care’s current adoption team. Historical research was fundamental to the methodological approach utilised in this PhD in order to uncover changes in birth mothers’ motives and experiences of adoption

Digital inclusion - the vision, the challenges and the way forward

This paper considers the vision and aspiration of digital inclusion, and then examines the current reality. It looks beyond the rhetoric to provide an analysis of the status quo, a consideration of some facilitators and challenges to progress and some suggestions for moving forward with renewed energy and commitment. The far-reaching benefits of digital inclusion and the crucial role it plays in enabling full participation in our digital society are considered. At the heart of the vision of universal digital inclusion is the deceptively simple goal to ensure that everyone is able to access and experience the wide-ranging benefits and transformational opportunities and impacts it offers. The reality is a long way from the vision: inequality of access still exists despite many national campaigns and initiatives to reduce it. The benefits and beneficiaries of a digital society are not just the individual but all stakeholders in the wider society. Research evidence has shown that the critical success factors for successful digital participation are (i) appropriate design and (ii) readily available and on-going ICT (Information and Communication Technology) support in the community. Challenges and proven solutions are presented. The proposition of community hubs in local venues to provide user-centred ICT support and learning for older and disabled people is presented. While the challenges to achieve digital inclusion are very considerable, the knowledge of how to achieve it and the technologies which enable it already exist. Harnessing of political will is necessary to make digital inclusion a reality rather than a vision. With the cooperation and commitment of all stakeholders actualisation of the vision of a digitally inclusive society, while challenging, can be achieved and will yield opportunities and rewards that eclipse the cost of implementation

Nonlinear growth generates age changes in the moments of the frequency distribution: the example of height in puberty

Higher moments of the frequency distribution of child height and weight change with age, particularly during puberty, though why is not known. Our aims were to confirm that height skewness and kurtosis change with age during puberty, to devise a model to explain why, and to test the model by analyzing the data longitudinally. Heights of 3245 Christ's Hospital School boys born during 1927-1956 were measured twice termly from 9 to 20 years (n = 129 508). Treating the data as independent, the mean, standard deviation (SD), skewness, and kurtosis were calculated in 40 age groups and plotted as functions of age t. The data were also analyzed longitudinally using the nonlinear random-effects growth model H( t) = h( t - epsilon) + alpha, with H( t) the cross-sectional data, h( t) the individual mean curve, and epsilon and alpha subject-specific random effects reflecting variability in age and height at peak height velocity (PHV). Mean height increased monotonically with age, while the SD, skewness, and kurtosis changed cyclically with, respectively, 1, 2, and 3 turning points. Surprisingly, their age curves corresponded closely in shape to the first, second, and third derivatives of the mean height curve. The growth model expanded as a Taylor series in e predicted such a pattern, and the longitudinal analysis showed that adjusting for age at PHV on a multiplicative scale largely removed the trends in the higher moments. A nonlinear growth process where subjects grow at different rates, such as in puberty, generates cyclical changes in the higher moments of the frequency distribution

Evolution of the electronic band structure of twisted bilayer graphene upon doping

The electronic band structure of twisted bilayer graphene develops van Hove singularities whose energy depends on the twist angle between the two layers. Using Raman spectroscopy, we monitor the evolution of the electronic band structure upon doping using the G peak area which is enhanced when the laser photon energy is resonant with the energy separation of the van Hove singularities. Upon charge doping, the Raman G peak area initially increases for twist angles larger than a critical angle and decreases for smaller angles. To explain this behavior with twist angle, the energy of separation of the van Hove singularities must decrease with increasing charge density demonstrating the ability to modify the electronic and optical properties of twisted bilayer graphene with doping.Comment: 10 pages, 4 figure