A basis for the exploration of hypermedia systems : a guided path facility : a thesis presented in partial fulfillment of the requirements for the degree of Master of Arts at Massey University

This thesis examines the potential of a paths facility as an aid to navigating large hypermedia systems. The use of the navigational metaphor as applied to finding information is continued with the idea of following a path through information 'space'. This idea assumes that each node, or chunk of information, on the path can be considered a landmark that can be easily returned to when side-trips are taken off the path to explore the surrounding space. The idea of a guided path assumes the re-use of a path, and also assumes that there is extra information available about the path. This meta-information is very important for providing information to help path-followers make better sense of the path, both in terms of content and context, but also in making more effective use of the nodes on the path and in navigating the variety of interface conventions seen in the test environment - HyperCard. A small pilot study has been carried out using two groups of users performing a directed information-seeking task. One group used HyperCard's navigational facilities to find information in a group of stacks, while the other group used a guided path as a base on which to explore the same group of stacks. Both groups had a time limit, at the end of which they completed a number of questionnaires to indicate task completion, as well as providing a subjective evaluation of the facilities they used. The guided path facility appears to be most effective for inexperienced users for a number of reasons. It presents a simplified view of the complex system - the information available has already been filtered and selected, and a simple and consistent navigational interface reduces the cognitive overheads associated with learning a variety of mechanisms present in different stacks. An important feature of a path facility seems to be the provision of meta-information, especially scope information which can reduce the incidences of disorientation. Another feature is the provision of a history facility which provides a backtracking capability. It may also be used in the creation of paths using the length of visit as a criterion for node inclusion on a new path

Prospects for productive use of saline water in West Asia and North Africa

Water quality / Salinity / Soil salinity / Irrigated farming / Crop production / Feed crops / Fodder / Poverty / Public policy / West Asia / North Africa / Egypt / Jordan / Syria / Tunisia

Carbon Monoxide Screening in Pregnancy: An Evaluation Study of a Plymouth Pilot Intervention

This report provides an analysis and evaluation of a National Institute for Health and Care Excellence (NICE) recommended pilot intervention which was designed to identify pregnant women exposed to carbon monoxide due to cigarette smoke and refers them to local stop smoking services (LSSS). The pilot intervention was carried out by community midwives working in two areas of Plymouth. The city has areas of social and health inequalities and the study drew on populations from a socially deprived neighbourhood and a socially affluent area. The pilot was instigated following new NICE guidance recommending that all women attending initial ante natal booking appointments with their community midwives be offered a Carbon Monoxide (CO) breath analyser screening to determine their smoking status and or exposure to other forms of CO. This evaluation study identifies the benefits and barriers associated with the implementation of the CO screening pilot. In particular, our aims were to explore any detrimental impact on the relationship between women and their community midwives, identify the impact on midwives in terms of time and resources, reveal the responses and acceptability or otherwise of the screening as perceived and experienced by the women being asked to participate during the booking appointment and finally to evaluate the success of the intervention overall in relation to the numbers of referrals made to Plymouth’s LSSS. A further aim was explore any differences in the two socio demographic areas. We adopted a mixed methods approach involving four focus group interviews with 23 midwives, a survey posted to the 258 women who attended initial antenatal booking appointments in the study areas, an online version of the survey to ascertain the views and experiences of pregnant women and new mothers nationally and an interrogation of an internet forum discussion board for mothers. A two page questionnaire consisting of 12 questions was designed and posted to women who attended the booking appointment with the midwife during the three month pilot period and the same survey was made available online. Questions were designed to elicit women’s views about the information given by the midwife in relation to the screening, whether they had agreed to participate in the CO screening process, their experiences and views about offering CO screening to pregnant women and their smoking status and those of other household members. Of the 258 questionnaires posted to women who had attended the clinic during the pilot intervention 40 completed responses were returned representing a 15.5% response rate. Only 4 responses were received from the online survey posting but an additional 484 comments posted on the Mumsnet website discussion board were analysed. Our findings show that in general there was a high degree of acceptability for the intervention. Midwives and their clients were generally in support of the screening being offered to all pregnant women. However, this support was dependent on a number of contextual factors. Women wanted to be properly informed about the screening and midwives wanted to be kept informed about the effects of the intervention on women’s smoking cessation. Initial and ongoing training of midwives in utilising the protocol and in instructing women to correct use the monitor was also very important. Trust was revealed to be a very important aspect of the relationship between women and their midwives. Some women felt that the CO screening was being used just to check whether or not they were smokers and some midwives also worried about the possible negative effects the CO screening may have on their relationships with women

THE PARAPAPIO SPECIES OF STERKFONTEIN, TRANSVAAL, SOUTH AFRICA

The premolar and molar dimensions of the Parapapio specimens hitherto described from the South African lower Pleistocene deposits at Sterkfontein have been re-examined. The relatively minor sexual dimorphism in these teeth (except P3 length) was confirmed. 103 new cercopithecoid specimens from Sterkfontein were tentatively assigned to the 3 previously described Parapapio spp. from that site. The new and old samples of each species were compared and then pooled. Analysis of this new enlarged sample, and also the newly available distribution data of Parapapio from other South African deposits, both tend to support the validity of 3 Parapapio spp., P. jonesi, P. broomi and P. whitei, at Sterkfontein.Wenner-Gren Foundation for Anthropological Researc

Recruitment, Selection and Retention of Nursing and Midwifery Students in Scottish Universities

Background: High attrition rates from pre-registration nursing and midwifery programmes have been reported in both the UK and in other countries.\ud Objectives: A study was conducted to identify best practice in recruitment, selection and retention across\ud Scottish Universities providing pre-registration programmes.\ud Design: A survey of all universities providing pre-registration programmes in Scotland was conducted.\ud Semi-structured interviews were conducted with key personnel in each university. Documentary evidence\ud was collected to supplement interview data and evidence recruitment, selection and retention practices.\ud Settings: All universities in Scotland providing pre-registration nursing and/or midwifery programmes.\ud Participants: All 10 identified universities agreed to take part and a total of 18 interviews were conducted.\ud Methods: Semi-structured face to face and telephone interviews were conducted. Relevant documentary\ud evidence was collected. All data were subject to thematic analysis.\ud Findings: Universities are predominantly concerned with recruiting to the institution and not to the professions.\ud Interviews are widely used, and are a requirement in the United Kingdom. However, there is no evidence base\ud within the literature that they have predictive validity despite creating scales and scoring systemswhich are largely\ud unvalidated.\ud The study identified initiatives aimed at addressing attrition/retention, howevermost had not been evaluated often\ud due to the multi-factorial nature of attrition/retention and difficulties with measurement.\ud Conclusions: Recruitment selection and retention initiativeswere rarely evaluated, and if so, adopted a relatively superficial\ud approach. Evidence from existing studies to support practices was mostly weakly supportive or absent.\ud The study highlights the need for a coordinated approach, supporting the development of a robust evidence\ud base through the evaluation of local initiatives, and evaluation of new strategies. Evaluation strategies must take\ud account of the local context to facilitate transferability of findings across different setting

Communities in university mathematics

This paper concerns communities of learners and teachers that are formed, develop and interact in university mathematics environments through the theoretical lens of Communities of Practice. From this perspective, learning is described as a process of participation and reification in a community in which individuals belong and form their identity through engagement, imagination and alignment. In addition, when inquiry is considered as a fundamental mode of participation, through critical alignment, the community becomes a Community of Inquiry. We discuss these theoretical underpinnings with examples of their application in research in university mathematics education and, in more detail, in two Research Cases which focus on mathematics students' and teachers' perspectives on proof and on engineering students' conceptual understanding of mathematics. The paper concludes with a critical reflection on the theorising of the role of communities in university level teaching and learning and a consideration of ways forward for future research

Environmental issues and the geological storage of CO2 : a discussion document

Increasing CO2 emissions will lead to climate change and ocean acidification with severe consequences for ecosystems and for human society. Strategies are being sought to reduce emissions including the geological storage of CO2. Existing studies operate within existing oil and gas regulatory frameworks, but if other non-oil reservoir geological formations are used these existing regulations may not apply. At UK and European levels the potential environmental impacts of uncontrolled CO2 releases from storage sites have been highlighted to be of significance for regulators. Thus a new regulatory framework may be needed. The precautionary principle is likely to be adopted by regulators, so it is important that the effects of acute and chronic exposures of ecosystems to CO2 leakages are evaluated. Consequently, existing regulations are likely to be developed to include specific recommendations concerning leakages. This review shows that many basic data simply do not exist to assist regulators in this process

Stretched chemical bonds in Si6H6: A transition from ring currents to localized pi-electrons?

Motivated by solid-state studies on the cleavage force in Si, and the consequent stretching of chemical bonds, we here study bond stretching in the, as yet unsynthesized, free space molecule Si6H6. We address the question as to whether substantial bond stretching (but constrained to uniform scaling on all bonds) can result in a transition from ring current behaviour, characteristic say of benzene at its equilibrium geometry, to localized pi-electrons on Si atoms. Some calculations are also recorded on dissociation into 6 SiH radicals. While the main studies have been carried out by unrestricted Hartree-Fock (HF) theory, the influence of electron correlation has been examined using two forms of density functional theory. Planar Si6H6 treated by HF is bound to be unstable, not all vibrational frequencies being real. Some buckling is then allowed, which results in real frequencies and stability. Evidence is then provided that the non-planar structure, as the Si-Si distance is increased, exhibits pi-electron localization in the range 1.2-1.5 times the equilibrium distance

Dealing with Complexity: Infant Feeding Choices and Experiences for Mothers with Infants in Neonatal Intensive Care Units and Transitional Care Wards

EXECUTIVE SUMMARY The central aim of the research on which this document reports was: To explore the knowledge, perceptions and experiences of infant feeding of mothers with infants in neonatal intensive care units (NICU) and transitional care wards (TCW) and the support these mothers receive from healthcare professionals and significant others with the aim of contributing to further support of mothers, significant others and healthcare professionals in the future. The objectives were: 1. To explore mothers’ with infants in NICU knowledge and understanding of infant, feeding and how this influences feeding choices. 2. To gain an understanding of mothers experiences of infant feeding, 3. To investigate the challenges of infant feeding in NICU. 4. To explore the significance of their self-identity and perception as ‘good’ or ‘not so good’ mothers in relation to this choice. 5. To ascertain the support women receive from healthcare professionals and significant others. 6. To identify further research needs, develop service provision and inform practice and policy. Background to the study is supported by a review of the clinical and sociologically relevant literature and brief detail on a previous related study (Stenhouse and Letherby 2013) which focused on the experience of mothers’ whose pregnancies were complicated by diabetes. A mixed method ethnographic approach was adopted: • Observations in the NICU and TCW were undertaken (alongside interviewing) amounting to approximately six hours. • One-to-one and dyad/group interviewing were undertaken with mothers and some of their partners. • Questionnaires (consisting of 10 questions, some of which were open to allow more respondent input) were distributed to all healthcare professionals working in NICU and TCW. An audit involving a systematic and independent examination of maternal and infant notes was undertaken at the same time as the primary data was collected. DATA AND DISCUSSION The Audit: This section provides a snapshot of infant feeding and expression of breastmilk from a cohort of mothers and babies who had previously been cared for in NICU, TCW or both. Appendix IV is a copy of a poster presented as part of the Medical Training Special Studies Unit. Interview and Questionnaire Data: This section reports on data collected from women, significant others and healthcare professionals and includes detailed reference to the significance of ‘The Journey’, the mixed experience of ‘Skills and Support’ and the experiences of ‘Pleasure, Pressure and Propaganda’. CONCLUSIONS, IMPLICATIONS AND RECOMMENDATIONS Six summary points 1. Training for staff is mixed and this is linked to confidence in supporting women. 2. Women ‘sensed’ the lack of confidence of some staff and this caused anxiety i.e. if the combination of staff on a shift had little experience/knowledge. 3. Women recognised that certain occupation groups had more time and experience to support them i.e. nursery nurses on TCW, midwives on NICU. 4. The physical environment was an issue for respondents. For example: a. TCW privacy, or not, when expressing and feeding. b. In NICU screens used for expressing or feeding sometimes caused anxiety given that screens are also used when baby is poorly/undergoing a procedure. 5. In TCW, formula feed was linked to early discharge resulting in some experiencing subtle pressure to formula feed. 6. Community outreach team very supportive to some and women respondents felt they would have benefited from longer support. Six recommendations 1. Training needs to be consistent for all grades of staff and a whole day annually is preferred by healthcare professional respondents. 2. Release from service essential to ensure training is undertaken and given the high priority it deserves. 3. Different coloured screens for expressing/feeding AND for procedures would be beneficial and reduce stress for mothers and significant others. 4. Active recruitment of peer supporters with experience of having a baby in NICU. 5. Ensure continued support from peer supporters when moving from breastfeeding to formula feeding. 6. More information related to equipment available in the community on discharge i.e. hospital grade breast pumps

<i>‘What retention’ means to me</i>: the position of the adult learner in student retention

Studies of student retention and progression overwhelmingly appear adopt definitions that place the institution, rather than the student, at the centre. Retention is most often conceived in terms of linear and continuous progress between institutionally identified start and end points. This paper reports on research that considered data from 38 in-depth interviews conducted with individuals who had characteristics often associated with non-traditional engagement in higher education who between 2006 and 2010 had studied an ‘Introduction to HE’ module at one distance higher education institution, some of whom had progressed to further study at that institution, some of whom had not. The research deployed a life histories approach to seek a finer grained understanding of how individuals conceptualise their own learning journey and experience, in order to reflect on institutional conceptions of student retention. The findings highlight potential anomalies hidden within institutional retention rates – large proportions of the interview participants who were not ‘retained’ by the institution reported successful progression to and in other learning institutions and environments, both formal and informal. Nearly all described positive perspectives on lifelong learning which were either engendered or improved by the learning undertaken. This attests to the complexity of individuals’ lives and provides clear evidence that institution-centric definitions of retention and progression are insufficient to create truly meaningful understanding of successful individual learning journeys and experiences. It is argued that only through careful consideration of the lived experience of students and a re-conception of measures of retention, will we be able to offer real insight into improving student retention