Miracle-dz/UniFAR-FTUs huggingface dataset:
Structured debriefing in nursing simulation: students’ perceptions

Background and Objective: Debriefing is the strategy which allows a review of a simulated experience or activities in which the participants explore, analyse and summarise their own action and thinking processes, their emotional state and other information which can enhance their performance in real-life situations. The aim of this study was to analyse the students’ perception of the structured debriefing. Methods: Qualitative research developed with 22 students in their fourth year of the nursing degree course. A voluntary, anonymous and confidential questionnaire was applied. The content analysis was based on Bardin. Results: Five categories resulted from the content analysis: the concept; the attributes; the cognitive impact; the psychosocial and the affective impact. They were all grouped into two dimensions: ‘The perception of Structured Debriefing’ and ‘The impact of Structured Debriefing on Students’. Several suggestions emerged such as the continuity of its use and its application to other contexts. Conclusions: The students perceive structured debriefing as an interactive method which allows the consolidation and systematisation of knowledge, the individual and collective reflection and the structured thought. On the other hand, the students mention that structured debriefing enables them to ask questions more ‘openly’ and to have greater proximity among colleagues, making the communication between all participants easier, inter alia, allowing us to mention the positive impact that it has on building skills.
A study on the dependence of DC electrical properties and nanostructure of Cu thin films on film thickness

This paper reports the correlation between film thickness, nanostructure and DC electrical properties of copper thin films deposited by PVD method on glass substrate. X-ray diffraction (XRD) and atomic force microscopy (AFM) were used for crystallography and morphology investigation, respectively. Resistivity was measured by four point probe instrument, while a Hall effects measurement system was employed for Hall Effect analysis. The grain size calculated from XRD and AFM, roughness, resistivity, hall coefficient, carrier concentration and mobility were plotted as a function of thickness. The result showed amorphous structure for 20 nm thickness, but with increasing the film thickness, Cu(111) preferred orientation was observed. The grain size, roughness and concentration of carriers increased and resistivity, hall coefficient and mobility decreased with increasing the film thickness. The result of copper thin films electrical investigation showed the value of resistivity and concentrations of carriers come to bulk state value at approximately 160 nm thickness.
Effect of transport properties of fiber types on steel reinforcement corrosion

This study investigated the transport properties of fiber types in concrete to evaluate their effect on the corrosion of steel reinforcement. The fibers used in this research are polypropylene (PP), polyvinyl alcohol (PVA), and hooked-end steel fiber (Steel). The addition of PVA fibers having relatively good resistance to transport properties indicated the best resistance to the initiation time of corrosion. On the other hand, the addition of PP fibers showed a relatively good resistance to corrosion, even though the specimen had a fast rate of absorption. The addition of hooked-end steel fibers that have the best ability to resist mass transport showed the earliest failure time. The localized corrosion effect of steel fibers from the repeated wet/dry cycles seems to have a considerable effect on the acceleration of corrosion nearby steel reinforcement. In addition, fiber types do not significantly resist further acceleration following the initiation of corrosion. It is worth noting that transport properties alone are not necessarily a good indicator of the effect of fibers on resistance to corrosion.
TYC 3159-6-1: a runaway blue supergiant

We report the results of optical spectroscopy of a candidate evolved massive star in the CygnusX region, TYC3159-6-1, revealed via detection of its curious circumstellar nebula in archival data of the Spitzer Space Telecope. We classify TYC3159-6-1 as an O9.5 O9.7Ib star and derive its fundamental parameters by using the stellar atmosphere code fastwind. The He and CNO abundances in the photosphere of TYC3159-6-1 are consistent with the solar abundances, suggesting that the star only recently evolved off the main sequence. Proper motion and radial velocity measurements for TYC3159-6-1 show that it is a runaway star. We propose that Dolidze7 is its parent cluster. We discuss the origin of the nebula around TYC3159-6-1 and suggest that it might be produced in several successive episodes of enhanced mass-loss rate (outbursts) caused by rotation of the star near the critical, -limit.
Fast Linear Model for Knowledge Graph Embeddings

This paper shows that a simple baseline based on a Bag-of-Words (BoW) representation learns surprisingly good knowledge graph embeddings. By casting knowledge base completion and question answering as supervised classification problems, we observe that modeling co-occurences of entities and relations leads to state-of-the-art performance with a training time of a few minutes using the open sourced library fastText.
Simulations of dislocation glide in overaged precipitation-hardened crystals

Abstract Precipitation hardening of metals and alloys is investigated by means of computer simulations of dislocations gliding through a matrix with spherical coherent precipitates. The critical resolved shear stress is derived. Most realistic models are applied in these simulations: the radius distribution and the three-dimensional spatial arrangement of the particles are close to those of an actual Ostwald ripened crystal. Unlike the surrounding matrix, the precipitates are long-range ordered. A dislocation cutting through them generates an antiphase boundary and hence senses an obstacle stress inside the precipitates, which impedes dislocation glide. Such a strengthening mechanism is effective for instance in the nickel-based superalloy Nimonic PE16. The simulations are based on the local stress equilibrium along the dislocation line. The linear elastic interaction of the dislocations with themselves and with other dislocations is fully allowed for, similar to the approaches of Brown and of Bacon. Overaged crystals are considered in which dislocation glide is governed by the Orowan process. The average particle radius r and the particle volume fraction ƒ are varied. The strengthening contribution of these particles is derived as a function of the parameters r and f. This function is compared with a recent theoretical function suggested by Nembach; after adding a minor correction term to the latter function, it represents the present simulation results well.
Comparative analysis of effects of dietary arachidonic acid and EPA on growth, tissue fatty acid composition, antioxidant response and lipid metabolism in juvenile grass carp, Ctenopharyngodon idellus

Abstract Four isonitrogenous and isoenergetic purified diets containing free arachidonic acid (ARA) or EPA (control group), 0·30 % ARA, 0·30 % EPA and 0·30 % ARA+EPA (equivalent) were designed to feed juvenile grass carp (10·21 (sd 0·10) g) for 10 weeks. Only the EPA group presented better growth performance compared with the control group (P<0·05). Dietary ARA and EPA were incorporated into polar lipids more than non-polar lipids in hepatopancreas but not intraperitoneal fat (IPF) tissue. Fish fed ARA and EPA showed an increase of serum superoxide dismutase and catalase activities, and decrease of glutathione peroxidase activity and malondialdehyde contents (P<0·05). The hepatopancreatic TAG levels decreased both in ARA and EPA groups (P<0·05), accompanied by the decrease of lipoprotein lipase (LPL) activity in the ARA group (P<0·05). Fatty acid synthase (FAS), diacylglycerol O-acyltransferase and apoE gene expression in the hepatopancreas decreased in fish fed ARA and EPA, but only the ARA group exhibited increased mRNA level of adipose TAG lipase (ATGL) (P<0·05). Decreased IPF index and adipocyte sizes were found in the ARA group (P<0·05). Meanwhile, the ARA group showed decreased expression levels of adipogenic genes CCAAT enhancer-binding protein α, LPL and FAS, and increased levels of the lipid catabolic genes PPAR α, ATGL, hormone-sensitive lipase and carnitine palmitoyltransferase 1 (CPT-1) in IPF, whereas the EPA group only increased PPAR α and CPT-1 mRNA expression and showed less levels than the ARA group. Overall, dietary EPA is beneficial to the growth performance, whereas ARA is more potent in inducing lipolysis and inhibiting adipogenesis, especially in IPF. Meanwhile, dietary ARA and EPA showed the similar preference in esterification and the improvement in antioxidant response.
Physiological Monitoring as an Objective Tool in Virtual Reality Therapy

The goals of this study were twofold: (1) to investigate nonphobics' and phobics' physiological response in virtual environments, and (2) to analyze the trend of phobics' physiology during virtual reality (VR) treatment. As a measure of physiology, heart rate, skin resistance, and skin temperature were acquired. The data for two groups of participants were analyzed: 22 nonphobic participants (mean = 32 +/- 9.4 years) and 36 subjects with fear of flying (mean = 40 +/- 12.1 years) who met the DSM-IV criteria for fear of flying. As a result, skin resistance showed significant differences between nonphobics and phobics, T(56) = 2.978 and p < 0.01, respectively. The physiological response of 33 phobic participants, who were able to fly without medicine after VR treatment, showed a gradual trend toward the nonphobics' physiological responses as therapy sessions progressed. In this study, physiological monitoring, in particular skin resistance, appeared to be useful both in understanding the physiological state of phobic individuals and in evaluating the results of treatment in VR psychotherapy.
A Brief Survey of Optical Wireless Communication

Optical wireless communication (OWC) technologies have been discussed and evaluated in a wide range of application scenarios, which is drawing increasing interest to keep pace with the growth in LED technologies. OWC has unique advantages to provide safe, secure, low-cost, and high-bandwidth communications. As a compensation for the existing radio frequency communications, OWC has huge potentials to be used for distributed applications from indoor to outdoor, from atmosphere to ground and underwater. In this paper, we conduct a brief survey of the most recent advances and research activities in OWC. We study the advantages and potential applications of OWC, and provide an overview of the techniques used to achieve OWC system.Some potential future research directions for OWC are also discussed.
Dynamic In Vivo Measurement of Erythrocyte Velocity and Flow in Capillaries and of Microvessel Diameter in the Rat Brain by Confocal Laser Microscopy

A new method for studying brain microcirculation is described, Both fluorescently labeled erythrocytes and plasma were visualized on-line through a closed cranial window in anesthetized rats, using laser-scanning two-dimension confocal microscopy, Video images of capillaries, arterioles, and venules were digitized off-line to measure microvessel diameter and labeled erythrocyte flow and velocity in parenchymal capillaries up to 200 μm beneath the brain surface, The method was used to analyze the rapid adaptation of microcirculation to a brief decrease in perfusion pressure, Twenty-second periods of forebrain ischemia were induced using the four-vessel occlusion model in eight rats, EEG, arterial blood pressure, and body temperature were continuously controlled, In all conditions, labeled erythrocyte flow and velocity were both very heterogeneous in capillaries, During ischemia, capillary perfusion was close to 0, but a low blood flow persisted in arterioles and venules, while EEG was flattening, The arteriole and venule diameter did not significantly change, At the unclamping of carotid arteries, there was an instantaneous increase (by about 150%) of arteriole diameter. Capillary erythrocyte flow and velocity increased within 5 seconds, up to, respectively, 346 ± 229% and 233 ± 156% of their basal value, No capillary recruitment of erythrocytes was detected, All variables returned to their basal levels within less than 100 seconds after declamping, The data are discussed in terms of a possible involvement of shear stress in the reperfusion period.
The Association between HbA1c, Fasting Glucose, 1-Hour Glucose and 2-Hour Glucose during an Oral Glucose Tolerance Test and Cardiovascular Disease in Individuals with Elevated Risk for Diabetes

Objective To determine the association between HbA1c, fasting plasma glucose (FPG), 1-hour (1 hPG) and 2-hour (2 hPG) glucose after an oral glucose tolerance test (OGTT) and cardiovascular disease in individuals with elevated risk for diabetes. Design We studied the relationship between baseline, updated mean and updated (last) value of HbA1c, FPG, 1 hPG and 2 hPG after an oral 75 g glucose tolerance test (OGTT) and acute CVD events in 504 individuals with impaired glucose tolerance (IGT) at baseline enrolled in the Finnish Diabetes Prevention Study. Setting Follow-up of clinical trial. Participants 504 individuals with IGT were followed with yearly evaluations with OGTT, FPG and HbA1c. Main Outcome Measure Relative risk of CVD. Results Over a median follow-up of 9.0 years 34 (6.7%) participants had a CVD event, which increased to 52 (10.3%) over a median follow-up of 13.0 years when including events that occurred among participants following a diagnosis of diabetes. Updated mean HbA1c, 1 hPG and 2 hPG, HR per 1 unit SD of 1.57 (95% CI 1.16 to 2.11), p = 0.0032, 1.51 (1.03 to 2.23), p = 0.036 and 1.60 (1.10 to 2.34), p = 0.014, respectively, but not FPG (p = 0.11), were related to CVD. In analyses of the last value prior to the CVD event the same three glycaemic measurements were associated with the CVD events, with HRs per 1 unit SD of 1.45 (1.06 to 1.98), p = 0.020, 1.55 (1.04 to 2.29), p = 0.030 and 2.19 (1.51 to 3.18), p<0.0001, respectively but only 2 hPG remained significant in pairwise comparisons. Including the follow-up period after diabetes onset updated 2 hPG (p = 0.003) but not updated mean HbA1c (p = 0.08) was related to CVD. Conclusions and Relevance Current 2 hPG level in people with IGT is associated with increased risk of CVD. This supports its use in screening for prediabetes and monitoring glycaemic levels of people with prediabetes.
Investigation of alternative materials for impregnation of Nb3Sn accelerator magnets

Insulation is one of the most important elements of magnet design, which determines the electrical, mechanical, and thermal performance as well as lifetime of the magnet. The exposure to high radiation loads especially for the proposed LHC second-generation interaction region Nb{sub 3}Sn quadrupoles further limits the choices of the insulation materials. Traditionally Nb{sub 3}Sn magnets were impregnated with epoxy to improve both the mechanical and electrical properties. However, the acceptable radiation limit for epoxy is low which reduces the lifetime of the magnet. The paper presents the results of the feasibility study to replace epoxy with high radiation-resistant material during vacuum impregnation. The mechanical, thermal and electrical properties of samples impregnated with Matrimid were measured and compared with epoxy-impregnated samples.
Adaptive modulation systems for predicted wireless channels

When adaptive modulation is used to counter short-term fading in mobile radio channels, signaling delays create problems with outdated channel state information. The use of channel power prediction improves the performance of the link adaptation. It is then of interest to take the quality of these predictions into account explicitly when designing an adaptive modulation scheme. We study the optimum design of an adaptive modulation scheme based on uncoded M-QAM modulation assisted by channel prediction for the flat Rayleigh fading channel. The data rate, and in some variants the transmit power, are adapted to maximize the spectral efficiency subject to average power and bit error rate constraints. The key issues studied here are how a known prediction error variance affects the optimized transmission properties such as the SNR boundaries that determine when to apply different modulation rates, and to what extent it affects the spectral efficiency. This investigation is performed by analytical optimization of the link adaptation, using the statistical properties of a particular but efficient channel power predictor. Optimum solutions for the rate and transmit power are derived based on the predicted SNR and the prediction error variance.
Efficacy and safety of paracetamol for spinal pain and osteoarthritis: systematic review and meta-analysis of randomised placebo controlled trials

Objective To investigate the efficacy and safety of paracetamol (acetaminophen) in the management of spinal pain and osteoarthritis of the hip or knee. Design Systematic review and meta-analysis. Data sources Medline, Embase, AMED, CINAHL, Web of Science, LILACS, International Pharmaceutical Abstracts, and Cochrane Central Register of Controlled Trials from inception to December 2014. Eligibility criteria for selecting studies Randomised controlled trials comparing the efficacy and safety of paracetamol with placebo for spinal pain (neck or low back pain) and osteoarthritis of the hip or knee. Data extraction Two independent reviewers extracted data on pain, disability, and quality of life. Secondary outcomes were adverse effects, patient adherence, and use of rescue medication. Pain and disability scores were converted to a scale of 0 (no pain or disability) to 100 (worst possible pain or disability). We calculated weighted mean differences or risk ratios and 95% confidence intervals using a random effects model. The Cochrane Collaboration’s tool was used for assessing risk of bias, and the GRADE approach was used to evaluate the quality of evidence and summarise conclusions. Results 12 reports (13 randomised trials) were included. There was “high quality” evidence that paracetamol is ineffective for reducing pain intensity (weighted mean difference −0.5, 95% confidence interval −2.9 to 1.9) and disability (0.4, −1.7 to 2.5) or improving quality of life (0.4, −0.9 to 1.7) in the short term in people with low back pain. For hip or knee osteoarthritis there was “high quality” evidence that paracetamol provides a significant, although not clinically important, effect on pain (−3.7, −5.5 to −1.9) and disability (−2.9, −4.9 to −0.9) in the short term. The number of patients reporting any adverse event (risk ratio 1.0, 95% confidence interval 0.9 to 1.1), any serious adverse event (1.2, 0.7 to 2.1), or withdrawn from the study because of adverse events (1.2, 0.9 to 1.5) was similar in the paracetamol and placebo groups. Patient adherence to treatment (1.0, 0.9 to 1.1) and use of rescue medication (0.7, 0.4 to 1.3) was also similar between groups. “High quality” evidence showed that patients taking paracetamol are nearly four times more likely to have abnormal results on liver function tests (3.8, 1.9 to 7.4), but the clinical importance of this effect is uncertain. Conclusions Paracetamol is ineffective in the treatment of low back pain and provides minimal short term benefit for people with osteoarthritis. These results support the reconsideration of recommendations to use paracetamol for patients with low back pain and osteoarthritis of the hip or knee in clinical practice guidelines. Systematic review registration PROSPERO registration number CRD42013006367.
A new no-reference quality metric for JPEG2000 images

A new technique is developed for no-reference (NR) quality assessment (QA) of JPEG2000 images. Based on the basic activity of general pixels, the proposed measure overcomes the limitations imposed by feature/structure extraction of distorted images. Besides, its structural content-weighted pooling approach involves no parameter and avoids additional procedures and training data for parameter determination. The effectiveness of the proposed measure is demonstrated through its close correlation with subjective quality scores. Besides, the proposed NR quality measure is shown better than the full-reference (FR) quality measure of peak signal-to-noise ratio (PSNR), comparable to the FR quality measure of structural similarity (SSIM) index, and quite competitive among the state-of-the-art NR quality measures. With satisfactory performance at reasonably computational expense and with ease of implementation, the proposed technique is proven to be a quality metric of choice for JPEG2000 images.
Insights into the factors associated with achieving the preference of home death in terminal cancer: A national population-based study

ABSTRACT Objectives: Most terminally ill cancer patients prefer to die at home, yet only a minority are able to achieve this. Our aim was to investigate the factors associated with cancer patients achieving their preference to die at home. Methods: This study took the form of a mortality followback, population-based, observational survey of the relatives of deceased cancer patients in Northern Ireland. Individuals who registered the death of a friend or relative (aged ≥ 18 years) between 1 December 2011 and 31 May 2012, where the primary cause of death was cancer (ICD10: C00–D48), who were invited to take part. Preferred and actual place of death, and patient, service, and clinical data were collected using the QUALYCARE postal questionnaire. Multivariable logistic regression was employed to investigate the factors associated with achieving a home death when preferred. Results: Some 467 of 1,493 invited informants completed the survey. The 362 (77.5%) who expressed a preference for dying at home and spent time at home in their final 3 months were included in our analysis. Of these, 53.4% achieved their preference of a home death. Factors positively associated with achieving a home death were: living in an affluent area, receipt of good and satisfactory district nurse care, discussing place of death with health professionals, and the caregiver's preference for a home death. Being older than 80 years of age, being a Presbyterian, and being unconscious most of the time during their final week were negatively associated with achieving a home death. Significance of Results: Communication, care satisfaction, and caregiver preferences were all associated with home death. Our findings will help inform the design of future interventions aimed at increasing the proportion of patients achieving their preferred place of death at home, for example, by targeting interventions toward older patients and those from the most deprived communities.