On the periphery? Understanding low and discontinued internet use amongst young people in Britain

In the UK, the Internet has become an important feature of the lives of the majority of young people. However, there is a significant minority of young people who are not able to navigate or connect properly with the online world. They are, in other words, outside the digital mainstream. Evidence for this group has been found in nationally representative surveys, where around 10% of young people (aged 17–23) define themselves as lapsed Internet users. That is, they used to use the Internet but no longer do so (OxIS, 2011). This study aims to find out more about this group. Specifically we aim to: Examine why young people are outside the digital mainstream, and determine the extent to which this is due to reasons of exclusion or choice.  Explore the implications this has in their daily lives.  Consider how the experiences of these young people can inform the digital inclusion strategy in the UK.  This nine month qualitative study investigated these objectives in four overlapping steps: a literature review of academic research and policy documents; analysis of the Oxford Internet Survey (2011) and the Learner and their Context Survey (2009), which contain valuable information on lapsed Internet users; 36 in–depth interviews with young people who consider themselves to be infrequent or lapsed Internet users; and a workshop with key experts in the field

Genetic modification and the kiwifruit industry: the risks and rewards of participation and non-participation

The New Zealand Kellogg Rural Leaders Programme develops emerging agribusiness leaders to help shape the future of New Zealand agribusiness and rural affairs. Lincoln University has been involved with this leaders programme since 1979 when it was launched with a grant from the Kellogg Foundation, USA.This report aims to look at several aspects of the genetic modification debate. It is a brief overview of some of the issues and challenges facing industries involved in genetic research including the benefits and risks (perceived and otherwise). It will look at the kiwifruit industry and see how that industry fits in the overall picture. It will give some examples of what is happening, and what possibly may happen, some consumer perceptions, some industry views, and will touch very briefly on ethical and moral issues as they apply to people of New Zealand. It will make conclusions as to the position we are in now, and the issues that are to be faced, as huge advances are made in the technology that is available

Optimal Vaneless Diffuser Design For A High-End Centrifugal Compressor

Turbochargers are widely used in the automotive industry to reduce engine emissions and to increase the power. Centrifugal compressors are an integral part of turbochargers. Centrifugal compressors comprises primarily of inducer, impeller, diffuser and volute. The diffuser has an important role in the isentropic efficiency of the compressor. Over the past few decades, researchers have been trying to increase the total-to-total compressor stage efficiency by altering the diffuser’s geometries. Many different methods have been adopted for this purpose, like pinching the diffuser walls, tilting the diffuser walls etc. Pinching increases the outer width of the diffuser while tilting provides an increased radial length. In the present study, both these methods have been used simultaneously. The primary benefit of doing so is to make the turbocharger compressor stage more compact in design, which is the current requirement of the automotive market. In order to investigate the effect of pinching and tilting of diffuser walls, a Computational Fluid Dynamics based solver has been used to predict the flow phenomena within the compressor, especially in the vaneless diffuser. Design of Experiments, using Taguchi’s method, has been incorporated in this study to statistically define the scope of the numerical work, and to obtain the optimal configuration of pinching and tilting that leads to maximum total-to-total compressor stage efficiency. The results depict that the compressor stage efficiency increases up to a tilt angle of 6.25º, after which it starts to decrease. Furthermore, the stage efficiency increases with increase of diffuser outlet width i.e., pinching the diffuser passage, however, this increasing trend has been observed up to an outlet width ratio of 1.23, after which the stage efficiency starts to decrease. Hence, the optimal diffuser model, based on the combined tilting and pinching results obtained, which leads to the maximum total-to-total compressor stage efficiency, has been identified and analysed

Tangible outcomes of Internet use: from digital skills to tangible outcomes project report

In the past decade, digital divide discussions have moved from discussions of use or non-use, to a more nuanced recognition of different types and levels of access, motivation, skills and Internet use in a discourse that centres around digital inclusion and inequality. However, there remain challenges in measurement and conceptualisation. In 2014, the authors of this report started a project with the main objective to develop theoretically informed measures that can be used to explain how people use the Internet and what the benefits might be. A first report (van Deursen, Helsper & Eynon, 2014) looked at how to measure digital skills, an area in which a good amount of research has been done, although good measures with a solid theoretical grounding are scarce. In the current report, the authors move towards a research area that is very underdeveloped: the tangible outcomes that Internet use might result in. Most research in this area focuses on measuring engagement or different uses of the Internet and then assumes that activities performed online result in the corresponding outcomes. An unequal distribution of these types of engagement in turn is assumed to reinforce existing levels of social inequality. In this report, the framework used to design measures of engagement and related outcomes starts from the premise that outcomes of Internet use can be mapped onto different types of offline resources. It argues that a clear separation needs to be made between undertaking different kinds of activities in the digital sphere (i.e. digital resource fields) and the tangible outcomes in different spheres of everyday life (i.e. offline resource fields) that result from this engagement. &nbsp

The compoundness and sequentiality of digital inequality

Through a survey with a representative sample of Dutch Internet users, this paper examines compound digital exclusion, that is, whether a person who lacks a particular digital skill also lacks another kind of skill; whether a person who does not engage in a particular way online is also less likely to engage in other ways; and whether a person who does not achieve a certain outcome online is also less likely to achieve another type of outcome. We also tested sequential digital exclusion, whether a lower level of digital skills leads to lower levels of engagement with the Internet resulting in a lower likelihood of an individual achieving tangible outcomes. Both types of digital exclusion are a reality. A certain use can have a strong relation with an outcome in a different domain. Furthermore, those who achieve outcomes in one domain do not necessarily achieve outcomes in another domain. To get a comprehensive picture of the nature of digital exclusion, it is necessary to account for different domains in research

Influence of the MCT1 rs1049434 on Indirect Muscle Disorders/Injuries in Elite Football Players

The aim of this study was to investigate the association between MCT1 rs1049434 polymorphism and indirect muscle injuries in elite football players. One hundred and seventy-three male elite Italian football players (age = 19.2 ± 5.3 years) were recruited from a first-league football club participating at the Official National Italian Football Championship (Serie A, Primavera, Allievi, Giovanissimi). The cohort was genotyped for the MCT1 rs1049434 polymorphism, and muscle injuries data were collected during the period of 2009-2014 (five football seasons).Genomic DNA was extracted using a buccal swab, and genotyping was performed using PCR method. Structural-mechanical injuries and functional muscle disorder were included in the acute indirect muscle injury group.Participants with the MCT1 AA (AA = 1.57 ± 3.07, n = 69) genotype exhibit significantly higher injury incidents compared to participants with the TT genotype (TT = 0.09 ± 0.25, n = 22, P = 0.04).The MCT1 rs1049434 polymorphism is associated with the incidence of muscle injuries in elite football players. We anticipate that the knowledge of athletes' genetic predisposition to sports-related injuries might aid in individualizing training programs

The influence of α-actinin-3 deficiency on bone remodelling markers in young men

There is a large individual variation in the bone remodelling markers (BRMs) osteocalcin (OC), procollagen 1 N-terminal propeptide (P1NP) and β-isomerized C-terminal telopeptide (β-CTx), as well as undercarboxylated osteocalcin (ucOC), at rest and in response to exercise. α-actinin-3 (ACTN3), a sarcomeric protein, is expressed in skeletal muscle and osteoblasts and may influence BRM levels and the cross-talk between muscle and bone. We tested the levels of serum BRMs in α-actinin-3 deficient humans (ACTN3 XX) at baseline, and following a single bout of exercise. Forty-three healthy Caucasian individuals were divided into three groups (ACTN3 XX, n = 13; ACTN3 RX, n = 16; ACTN3 RR, n = 14). Participants completed a single session of High Intensity Interval Exercise (HIIE) on a cycle ergometer (8 × 2-min intervals at 85% of maximal power). Blood samples were taken before, immediately after, and three hours post exercise to identify the peak changes in serum BRMs. There was a stepwise increase in resting serum BRMs across the ACTN3 genotypes (XX \u3e RX \u3e RR) with significantly higher levels of tOC ~ 26%, P1NP ~ 34%, and β-CTX (~ 33%) in those with ACTN3 XX compared to ACTN3 RR. Following exercise BRMs and ucOC were higher in all three ACTN3 genotypes, with no significant differences between groups. Serum levels of tOC, P1NP and β-CTX are higher in men with ACTN3 XX genotype (α-actinin-3 deficiency) compared to RR and RX. It appears that the response of BRMs and ucOC to exercise is not explained by the ACTN3 genotype