Evaluating the Online Activity and Searching Behaviour of Users of a Medical Digital Library

The National electronic Library of Infection (NeLI) is a UK-based resource, providing free access to current best-available evidence in Infectious Disease for the public and professionals alike. The content of the NeLI is intended to be developed and maintained by an online community of professionals. The library is currently running as a pilot website and analysis of the behaviour of current users, in particular professionals in the field of infectious disease is necessary to inform development of the new NeLI website. A web log analysis was undertaken for the period January 2002 to June 2003. In particular use by hospital/National Health Service (NHS)-based users was evaluated. Results indicate an increase in activity during the period and an increase in the number of hospital/NHS-based users. Hospital/NHS-based users were more likely to return to the site, spend more time on the site and to view more pages than other users. In addition, a free text search facility was added in July 2003 and an analysis of the queries entered into this search has also informed further library development and will be evaluated in future research. Further research is now necessary to promote the library among professionals and develop the online community

Using the Internet to influence public knowledge and attitudes about health

The increasing availability of evidence-based medical information on the Internet has great potential to empower patients and health professionals and equip them for better decision-making, improving health outcomes. However, previous research has only evaluated the quality and accessibility of online information rather than the impact this information is having on the user. With these new technologies, are we actually empowering patients and professionals, improving their knowledge and changing their attitudes in a way that will impact on their behaviour? This paper presents the results of a pilot study investigating whether information within a medical digital library changes user knowledge and attitudes. The study had positive results with significant changes recorded. We conclude that digital libraries have the potential to change knowledge and attitudes of a range of users, but we need to evaluate this impact to inform digital library design in order to maximise the impact on users

Evaluating the changes in knowledge and attitudes of digital library users

Medical digital libraries are essentially life-critical applications providing timely access for professionals and the public to current medical knowledge and practice. This paper presents a new methodology for evaluating the impact of the knowledge within a medical digital library on users by testing their knowledge improvements and attitude changes. Using pre and post-use questionnaires we tested the impact of a small medical information website acting as an interface to the National electronic Library for Communicable Disease. The changes in user attitudes and the correlation with knowledge improvements observed indicate the potential for this methodology to be applied as a general evaluation technique of digital libraries and the impact of online information on user learning

Lessons learned from evaluation of the use of the National electronic Library of Infection

The National electronic Library of Infection (NeLI: http://www.neli.org.uk) in the UK is a freely available portal to key evidence and guidelines in the infectious disease field. This paper discusses 5 years of evaluation of the pilot library and how this evaluation informed design of the new library website. The importance of combining qualitative and quantitative evaluation is highlighted and the results of web access logs analysis, free text search query analysis and an online user survey are compared. The paper concludes with a discussion of lessons learned for future development and evaluation of this Internet digital library

User Customisation of Agent Profiles in the National electronic Library for Communicable Disease

The Internet provides overwhelming amount of medical information. However, healthcare professionals often cannot find the information they need when they need it and if they do the quality may be uncertain. A new Internet digital library, the National electronic Library for Communicable Disease (NeLCD), is addressing this issue by providing a single-entry portal to evidence-based information on treatment, investigation and prevention of communicable disease. Autonomous Intelligent Agents are essential for the development and runtime of the NeLCD library as they perform autonomously a number of tasks related to the search, assist humans in information publishing, the document review process and data exchange. In this paper, we present an application of Intelligent Agents in user profiling and customisation. In particular, they allow users to personalise the search, modify the input controlled vocabulary and customize the search results to better meet their needs. In addition, they can autonomously alert users about new postings according to their interests. Profiling of Intelligent Search Agents (ISA) and Pro-active Alert Agents (PAA) allows extensive customisation of the library according to user’s personal preferences, professional background and medical specialty

Changing public attitudes to antibiotic prescribing: can the internet help?

INTRODUCTION: Antimicrobial resistance is a global problem with serious implications for modern medicine. Education of the public is essential for reducing patient pressure on GPs and subsequent inappropriate prescribing. Evaluation of educational interventions is necessary to assess their impact on public knowledge and attitudes. The aim of this study was to evaluate the effect of a health information website, part of the National electronic Library of Infection, on user knowledge and attitudes. METHOD: Questionnaires testing user knowledge and attitudes before and after using the website. RESULTS: There were significant improvements in knowledge about the use of antibiotics and antibiotic resistance. Expectations that antibiotics should be prescribed were significantly reduced after using the website. Health professionals showed a significantly greater knowledge about antibiotics and were less likely to expect antibiotics to be prescribed for acute otitis media than non-health professionals before using the website. There was no significant difference between the knowledge of these groups after using the website, but non-health professionals continued to have higher expectations of antibiotics being prescribed than health professionals. CONCLUSIONS: Health information websites can play a significant role in influencing public knowledge and attitudes. Further research is needed to investigate how people learn from these interventions and to determine their long-term impact on public attitudes and subsequent behaviour

Greener synthesis of dimethyl carbonate using a novel tin-zirconia/graphene nanocomposite catalyst

© 2017 A green, rapid and continuous hydrothermal flow synthesis (CHFS) route has been employed to synthesise highly efficient and active novel heterogeneous catalysts. Tin doped zirconia (Zr–Sn–O) and tin doped zirconia/graphene nanocomposite (Zr–Sn/GO) have been assessed as suitable heterogeneous catalysts for the synthesis of dimethyl carbonate (DMC). The catalysts have been extensively characterized using powder X-ray diffraction (XRD), transmission electron microscopy (TEM), Brunauer-Emmett-Teller (BET) surface area measurement and X-ray photoelectron spectroscopy (XPS) analysis. Extensive batch studies for the synthesis of DMC via the transesterification of propylene carbonate (PC) and methanol (MeOH) using Zr–Sn/GO catalyst in a solvent free process were also conducted. The effect of various reaction conditions such as reactant molar ratio, catalyst loading, reaction temperature and reaction time has been extensively evaluated. Response surface methodology based on Box-Behneken Design (BBD) was employed to derive optimum conditions for maximising PC conversion and DMC yield. The correlations and interactions between various variables such as MeOH:PC ratio, catalyst loading, reaction temperature, reaction time and stirring speed were extensively studied. A quadratic model by multiple regression analysis for the PC conversion and DMC yield was developed and verified by several methods BBD revealed that optimum conditions for high yield values of DMC are 12.33:1 MeOH:PC molar ratio, 446.7 K, 4.08 h and 300 rpm using 2.9% (w/w) Zr–Sn/GO nanocomposite. The maximum predicted responses at the optimum conditions are 85.1% and 81% for PC conversion and yield of DMC respectively. Experimental results at optimum model predicted reaction conditions agree very well with the model predicted response, where 82.4% PC conversion and 78.2% yield of DMC were obtained. Catalyst reusability and stability studies have been conducted at optimum reaction condition to investigate the long term stability of Zr–Sn/GO and it has been found that the catalyst could be reused more than six times (about 42 h) without losing its catalytic activity. These experimental and model predicted values showed an excellent agreement for tin doped zirconia/graphene nanocomposite as a heterogeneous catalyst for the synthesis of DMC from PC and MeOH

Structure and Strength of Dislocation Junctions: An Atomic Level Analysis

The quasicontinuum method is used to simulate three-dimensional Lomer-Cottrell junctions both in the absence and in the presence of an applied stress. The simulations show that this type of junction is destroyed by an unzipping mechanism in which the dislocations that form the junction are gradually pulled apart along the junction segment. The calculated critical stress needed for breaking the junction is comparable to that predicted by line tension models. The simulations also demonstrate a strong influence of the initial dislocation line directions on the breaking mechanism, an effect that is neglected in the macroscopic treatment of the hardening effect of junctions.Comment: 4 pages, 3 figure

Limits on the neutrino magnetic moment from the MUNU experiment

The MUNU experiment was carried out at the Bugey nuclear power reactor. The aim was the study of electron antineutrino-electron elastic scattering at low energy. The recoil electrons were recorded in a gas time projection chamber, immersed in a tank filled with liquid scintillator serving as veto detector, suppressing in particular Compton electrons. The measured electron recoil spectrum is presented. Upper limits on the neutrino magnetic moment were derived and are discussed.Comment: 9 pages, 7 figures Added reference: p.3, 1st col., TEXONO Added sentence: p.4, 1st col., electron attachement Modified sentence: p.5, 1st col., readout sequence Added sentence: p.5, 1st col., fast rise time cu

Effect of Ramadan fasting on glucose, glycosylated haemoglobin, insulin, lipids and proteinous concentrations in women with non-insulin dependent diabetes mellitus

The objective of this study was to investigate the effect of Ramadan fasting on body mass index (BMI) and on certain biochemical parameters of serum in women patients with non-insulin dependent diabetes mellitus. Sixty-six subjects from 3 regions located in the west of Algeria participated in this study. All participating patients were studied a week before Ramadan and at the third week of Ramadan fasting. No statistically significant fluctuations were noted in BMI either during Ramadan or in nonfasting days. However, the rates of glycosylated haemoglobin (HbA1c) decreased slightly (P < 0.05) during the last week of the month of Ramadan among the diabetic patients. Also, the glucose levelswere significantly (p < 0.05) higher in the serum subjects of patients during the fasting period when compared to the level before Ramadan. This could be due to the significant decrease (P < 0.05) of insulin levels in patients during the fasting period. The rates of HDL cholesterol recorded in the blood among patients rose significantly (p < 0.05) during the Ramadan than during the non-fasting period. The statistically significant increase in HDL-cholesterol explains clearly the beneficial effect of Ramadan fasting on diabetic’s serum lipids. Moreover, serum total cholesterol, triglyceride, LDL cholesterol and VLDL cholesterol levels decreased significantly (p < 0.05) during the third week of Ramadan than nonfasting day. As for proteinous compounds (protein, creatin and urea), their plasmatic rates all increased substantially (p < 0.05) in patients during the fasting period of the month of Ramadan