LLukas22/scidocs huggingface dataset:
Cooperative Non-orthogonal Multiple Access With Simultaneous Wireless Information and Power Transfer

In this paper, the application of simultaneous wireless information and power transfer (SWIPT) to nonorthogonal multiple access (NOMA) networks in which users are spatially randomly located is investigated. A new co-operative SWIPT NOMA protocol is proposed, in which near NOMA users that are close to the source act as energy harvesting relays to help far NOMA users. Since the locations of users have a significant impact on the performance, three user selection schemes based on the user distances from the base station are proposed. To characterize the performance of the proposed selection schemes, closed-form expressions for the outage probability and system throughput are derived. These analytical results demonstrate that the use of SWIPT will not jeopardize the diversity gain compared to the conventional NOMA. The proposed results confirm that the opportunistic use of node locations for user selection can achieve low outage probability and deliver superior throughput in comparison to the random selection scheme.
Towards Deeper Understanding of Persuasion in Software and Information Systems

A growing number of information technology systems and services are being developed for persuasive purposes, i.e. to change users' attitudes or behaviour or both. Despite the fact that attitudinal theories from social psychology have been quite extensively applied to the study of user intentions and behaviour, computer scientists and user interface designers are not very familiar with the theories related to attitude change. Moreover, these theories are not directly applicable for developing software and information systems. This paper builds upon the attitude change theories from social psychology recognising dimensions and approaches that help move towards a practical conceptual framework for understanding and designing persuasion in information systems.
Qualitative management accounting research: rationale, pitfalls and potential

Purpose – The paper aims to provide an overview of the rationale for qualitative research in management accounting. It discusses how qualitative research could serve the development of theory, and provides guiding principles for qualitative investigation. It also seeks to identify common problems in qualitative studies and lays out avenues for further qualitative inquiry. Design/methodology/approach – The paper relies on critical reflection and deductive logic in its discussion, drawing on a wide range of theoretical pronouncements and methodological literature, as well as on some illustrative field studies in management accounting. Findings – The paper opens a broad panorama: it emphasizes field research as a necessary counterweight to textbook appreciations of management accounting, to idealized economic models and to consultancy-oriented agenda. It identifies how field research serves theory development in different ways, providing a set of practical principles which assist qualitative efforts. The paper also specifies pitfalls in qualitative studies and shows areas where the future potential of qualitative investigations can be focused. Practical implications – This is a paper that motivates the “qualitative” management accounting scholar. But it also assists in a pragmatic way the qualitatively oriented management accounting scholar – especially someone with little prior experience in empirical fieldwork and in the theoretical interpretation of qualitative data. Originality/value – The paper provides a source of inspiration, an instructive reflection and a practical guide for the qualitatively oriented, but still somewhat hesitant, management accounting scholar.
Do girls with anorexia nervosa have elevated autistic traits?

BACKGROUND
Patients with anorexia may have elevated autistic traits. In this study, we tested test whether patients with anorexia nervosa (anorexia) have an elevated score on a dimensional measure of autistic traits, the Autism Spectrum Quotient (AQ), as well as on trait measures relevant to the autism spectrum: the Empathy Quotient (EQ), and the Systemizing Quotient (SQ).


METHODS
Two groups were tested: (1) female adolescents with anorexia: n = 66, aged 12 to 18 years; and (2) female adolescents without anorexia: n =1,609, aged 12 to 18 years. Both groups were tested using the AQ, EQ, and SQ, via the parent-report adolescent versions for patients aged 12 to 15 years old, and the self-report adult versions for patients aged over 16 years.


RESULTS
As predicted, the patients with anorexia had a higher AQ and SQ. Their EQ score was reduced, but only for the parent-report version in the younger age group. Using EQ-SQ scores to calculate 'cognitive types', patients with anorexia were more likely to show the Type S profile (systemizing (S) better than empathy (E)), compared with typical females.


CONCLUSIONS
Females with anorexia have elevated autistic traits. Clinicians should consider if a focus on autistic traits might be helpful in the assessment and treatment of anorexia. Future research needs to establish if these results reflect traits or states associated with anorexia.
An Analysis for Big Data and its Technologies

“Big Data” is a term encompassing the use of techniques to capture, process, analyse and visualize potentially large datasets in a reasonable timeframe not accessible to standard IT technologies. By extension, the platform, tools and software used for this purpose are collectively called “Big Data technologies”. In this paper, we provide the meaning, characteristics, models, technologies, life cycle and many other aspects of big data. Keywords— Big Data, Hadoop, Map Reduce, HDFS (Hadoop Distributed File System), Cloud Computing.
A randomized controlled pilot study of the effectiveness of occupational therapy for children with sensory modulation disorder.

OBJECTIVE
A pilot randomized controlled trial (RCT) of the effectiveness of occupational therapy using a sensory integration approach (OT-SI) was conducted with children who had sensory modulation disorders (SMDs). This study evaluated the effectiveness of three treatment groups. In addition, sample size estimates for a large scale, multisite RCT were calculated.


METHOD
Twenty-four children with SMD were randomly assigned to one of three treatment conditions; OT-SI, Activity Protocol, and No Treatment. Pretest and posttest measures of behavior, sensory and adaptive functioning, and physiology were administered.


RESULTS
The OT-SI group, compared to the other two groups, made significant gains on goal attainment scaling and on the Attention subtest and the Cognitive/Social composite of the Leiter International Performance Scale-Revised. Compared to the control groups, OT-SI improvement trends on the Short Sensory Profile, Child Behavior Checklist, and electrodermal reactivity were in the hypothesized direction.


CONCLUSION
Findings suggest that OT-SI may be effective in ameliorating difficulties of children with SMD.
Prediction of therapeutic failure after adrenaline injection plus heater probe treatment in patients with bleeding peptic ulcer.

BACKGROUND
Continued or recurrent bleeding after endoscopic treatment for bleeding ulcer is a major adverse prognostic factor. Identification of such ulcers may allow for alternate treatments.


AIM
To determine factors predicting treatment failure with combined adrenaline injection and heater probe thermocoagulation.


METHODS
Consecutive patients with bleeding peptic ulcers who received endoscopic therapy between January 1995 and March 1998 were studied. Data on clinical presentation, endoscopic findings, and treatment outcomes were collected prospectively. Multiple logistic regression analysis was used to identify independent risk factors for treatment failure.


RESULTS
During the study period, 3386 patients were admitted with bleeding peptic ulcers: 1144 (796 men, 348 women) with a mean age of 62.5 (SD 17.6) years required endoscopic treatment. There were 666 duodenal ulcers (58.2%), 425 gastric ulcers (37.2%), and 53 anastomotic ulcers (4.6%). Initial haemostasis was successful in 1128 patients (98.6%). Among them, 94 (8.2%) rebled in a median time of 48 hours (range 3-480). Overall failure rate was 9.6%. Mortality rate was 5% (57/1144). Multiple logistic regression analysis revealed that hypotension (odds ratio (OR) 2.21, 95% confidence interval (CI) 1.40-3.48), haemoglobin level less that 10 g/dl (OR 1.87, 95% CI 1.18-2.96), fresh blood in the stomach (OR 2.15, 95% CI 1.40-3.31), ulcer with active bleeding (OR 1.65, 95% CI 1.07-2.56), and large ulcers (OR 1.80, 95% CI 1.15-2.83) were independent factors predicting rebleeding.


CONCLUSIONS
Larger ulcers with severe bleeding at presentation predict failure of endoscopic therapy.
WATCH: WiFi in Active TV Channels

Today's "white space" model of spectrum sharing applied in the UHF TV band allows channels that are not being used regionally by a TV broadcaster to be re-purposed for unlicensed-style secondary access in 24 hour increments. Unfortunately, populated areas have few unused channels for white space usage. Nonetheless, from the UHF TV viewer's perspective, Nielsen data show severe under-utilization of this spectrum, with vast regions that are in range of TV transmitters having no active TV receivers on multiple channels even at peak TV viewing times. In this paper, we present the design, implementation, and experimental evaluation of WATCH (WiFi in Active TV CHannels), the first system to enable secondary WiFi transmission even in the presence of kilowatt-scale TV transmitters, while simultaneously protecting TV receivers when they are active. To protect active TV receivers, WATCH includes a smartphone-based TV remote or an Internet-connected TV to inform the WATCH controller of TV receivers' spatial-spectral requirements. To enable WiFi transmission in UHF bands, we design WATCH-IC (Interference Cancellation) and CAT (Constructive Addition Transmission) to (i) exploit the unique environment of asynchronous WiFi transmission in the presence of a strong streaming interferer, and (ii) require no coordination with legacy TV transmitters. With FCC permission to test our implementation, we show that WATCH can provide at least 6 times the total achievable rate to 4 watt secondary devices compared to current TV white space systems, while limiting the increase in TV channel switching time to less than 5%.
A Novel Backup Distance Protection Scheme for Series-Compensated Transmission Lines

Conventional distance protection applies the positive-sequence impedance to protect a line against short-circuit faults. Series-compensated lines may considerably change the positive-sequence impedance of the fault path and cause the distance relays to maloperate. To overcome this problem, the mutual impedance between phases of a transmission line is used for the design of a new distance protection scheme. The voltages and currents of both ends of the line are applied to compute the mutual impedance between the relay and the fault point. The proposed scheme has a reliable performance in protection against single-phase and double-phase-to-ground faults and, therefore, it can be used as a backup protection. Simulation results approve the efficiency of the proposed method in protection of series-compensated transmission lines.
Joint SOGC/CSEP clinical practice guideline: exercise in pregnancy and the postpartum period.

OBJECTIVE
To design Canadian guidelines advising obstetric care providers of the maternal, fetal, and neonatal implications of aerobic and strength-conditioning exercises in pregnancy.


OUTCOMES
Knowledge of the impact of exercise on maternal, fetal, and neonatal morbidity, and of the maternal measures of fitness.


EVIDENCE
MEDLINE search from 1966 to 2002 for English-language articles related to studies of maternal aerobic and strength conditioning in a previously sedentary population, maternal aerobic and strength conditioning in a previously active population, impact of aerobic and strength conditioning on early and late pregnancy outcomes, impact of aerobic and strength conditioning on neonatal outcomes, as well as for review articles and meta-analyses related to exercise in pregnancy.


VALUES
The evidence collected was reviewed by the Society of Obstetricians and Gynaecologists of Canada (SOGC Clinical Practice Obstetrics Committee) with representation from the Canadian Society for Exercise Physiology, and quantified using the evaluation of evidence guidelines developed by the Canadian Task Force on the Periodic Health Exam.
Measuring adherence to antiretroviral treatment in resource-poor settings: The clinical validity of key indicators

BACKGROUND
Access to antiretroviral therapy has dramatically expanded in Africa in recent years, but there are no validated approaches to measure treatment adherence in these settings.


METHODS
In 16 health facilities, we observed a retrospective cohort of patients initiating antiretroviral therapy. We constructed eight indicators of adherence and visit attendance during the first 18 months of treatment from data in clinic and pharmacy records and attendance logs. We measured the correlation among these measures and assessed how well each predicted changes in weight and CD4 count.


RESULTS
We followed 488 patients; 63.5% had 100% coverage of medicines during follow-up; 2.7% experienced a 30-day gap in treatment; 72.6% self-reported perfect adherence in all clinic visits; and 19.9% missed multiple clinic visits. After six months of treatment, mean weight gain was 3.9 kg and mean increase in CD4 count was 138.1 cells/mm3.Dispensing-based adherence, self-reported adherence, and consistent visit attendance were highly correlated. The first two types of adherence measure predicted gains in weight and CD4 count; consistent visit attendance was associated only with weight gain.


CONCLUSIONS
This study demonstrates that routine data in African health facilities can be used to monitor antiretroviral adherence at the patient and system level.
Assessment of IT governance in organizations: A simple integrated approach

There are various methods available for dealing with IT governance. These methods are diversified, and in some cases lengthy and complicated. This paper is concerned with providing a unified simple approach for IT governance assessment. The approach is developed and tested through the following three main steps: (1) highlighting the basic requirements of IT governance considering key available methods; (2) designing the target approach that integrates these requirements and uses knowledge management principles; and (3) illustrating the use of the approach through a typical illustrative application. The approach uses the ‘‘STOPE: Strategy, Technology, Organization, People and Environment’’ view to integrate the issues involved, the knowledge management principles as an added value, and the six-sigma phases as a cyclic improvement process. The work provides ‘‘fifty’’ main IT governance controls; and these enable finding key strengths and weaknesses of IT governance in organizations from which development directions can be derived. It should be noted that considering knowledge management, and people as a main domain in the integration view, illustrate special emphasis of the human factor in IT governance. 2013 Elsevier Ltd. All rights reserved.
A randomized comparison of the Endeavor zotarolimus-eluting stent versus the TAXUS paclitaxel-eluting stent in de novo native coronary lesions 12-month outcomes from the ENDEAVOR IV trial.

OBJECTIVES
The ENDEAVOR IV (Randomized Comparison of Zotarolimus-Eluting and Paclitaxel-Eluting Stents in Patients with Coronary Artery Disease) trial evaluated the safety and efficacy of the zotarolimus-eluting stent (ZES) compared with the paclitaxel-eluting stent (PES).


BACKGROUND
First-generation drug-eluting stents have reduced angiographic and clinical restenosis, but long-term safety remains controversial. A second-generation drug-eluting stent, which delivers zotarolimus, a potent antiproliferative agent, via a biocompatible phosphorylcholine polymer on a cobalt alloy thin-strut stent has shown promising experimental and early clinical results.


METHODS
This is a prospective, randomized (1:1), single-blind, controlled trial comparing outcomes of patients with single de novo coronary lesions treated with ZES or PES. The primary end point was noninferiority of 9-month target vessel failure defined as cardiac death, myocardial infarction, or target vessel revascularization.


RESULTS
Among a total of 1,548 patients assigned to ZES (n = 773) or PES (n = 775), at 9 months, ZES was noninferior to PES with rates of target vessel failure 6.6% versus 7.1%, respectively (p(noninferiority) < or = 0.001). There were fewer periprocedural myocardial infarctions with ZES (0.5% vs. 2.2%; p = 0.007), whereas at 12 months, there were no significant differences between groups in rates of cardiac death, myocardial infarction, target vessel revascularization, or stent thrombosis. Although incidence of 8-month binary angiographic in-segment restenosis was higher in patients treated with ZES versus PES (15.3% vs. 10.4%; p = 0.284), rates of 12-month target lesion revascularization were similar (4.5% vs. 3.2%; p = 0.228), especially in patients without planned angiographic follow-up (3.6% vs. 3.2%; p = 0.756).


CONCLUSIONS
These findings demonstrate that ZES has similar clinical safety and efficacy compared with PES in simple and medium complexity single de novo coronary lesions. (ENDEAVOR IV Clinical Trial; NCT00217269).
A comparison of emotion regulation strategies in response to craving cognitions: Effects on smoking behaviour, craving and affect in dependent smokers.

AIM
The effects of three emotion regulation strategies that targeted smoking-related thoughts were compared on outcomes relevant to smoking cessation.


METHOD
Daily smokers applied defusion (n = 25), reappraisal (n = 25) or suppression (n = 23) to thoughts associated with smoking during a cue-induced craving procedure. Smoking behaviour, approach/avoidance behavioural bias, and subjective measures of experiential avoidance, craving, and affect were assessed during the experimental session, with additional behavioural and subjective outcomes assessed at 24 h and seven day follow-up. The influence of baseline group differences in smoking level and nicotine dependence were explored statistically.


RESULTS
Defusion and reappraisal were associated with greater restraint in smoking behaviour in the immediate post-session period as well as reduction in smoking at seven day follow-up compared to suppression. Relative to suppression, reduced subjective craving was seen in the reappraisal group, and reduced experiential avoidance in the defusion group. Differences in approach/avoidance responses to smoking and neutral cues were observed only between the suppression and reappraisal groups. Although suppression was rated as lower in both credibility and strategy-expectancy compared to defusion and reappraisal, neither credibility nor expectancy mediated the effect of any strategy on changes in levels of smoking.


CONCLUSION
Defusion and reappraisal produced similar benefits in smoking-related behavioural outcomes but, relative to suppression, were associated with distinctive outcomes on experiential avoidance and craving. The effects appear to be independent of perceived expectancy and credibility of the different strategies. Overall, the results suggest a role for reappraisal and defusion strategies in the development of psychological treatments for addiction-related disorders.
Home energy management system based on power line communication

This paper describes a home energy management system (HEMS) based on power line communication. Smart metering and power line communication can provide detailed information of energy consumption patterns and intelligent controlling to appliances at home. We propose a HEMS that can provide easy-to-access information on home energy consumption in real time, intelligent planning for controlling appliances, and optimization of power consumption at home. The HEMS consists of three modules: an advanced power control planning engine, a device control module, and a power resource management server. Our prototype system reduces the cost of power consumption by about 10%.
Path Planning using a Dynamic Vehicle Model

This paper addresses the problem of path planning using a dynamic vehicle model. Previous works which include a basic kinematic model generate paths that are only realistic at very low speed. By considering higher vehicle speed during navigation, the vehicle can significantly deviate from the planned trajectory. Consequently, the planned path becomes unusable for the mission achievement. So, to bridge a gap between planning and navigation, we propose a realistic path planner based on a dynamic vehicle model
The difference between common knowledge of formulas and sets

Abstract. Common knowledge can be defined in at least two ways: syntactically as the common knowledge of a set of formulas or semantically, as the meet of the knowledge partitions of the agents. In the multi-agent S5 logic with either finitely or countably many agents and primitive propositions, the semantic definition is the finer one. For every subset of formulas that can be held in common knowledge, there is either only one member or uncountably many members of the meet partition with this subset of formulas held in common knowledge. If there are at least two agents, there are uncountably many members of the meet partition where only the tautologies of the multi-agent S5 logic are held in common knowledge. Whether or not a member of the meet partition is the only one corresponding to a set of formulas held in common knowledge has radical implications for its topological and combinatorial structure.
Parental knowledge and attitudes regarding the emergency treatment of avulsed permanent teeth

OBJECTIVE
The aim of this study was to examine parental knowledge and attitudes about avulsed permanent teeth and their emergency treatment in children.


METHODS
A total of 289 parents of children aged 6-12 years receiving care at the Ondokuz Mayis University Pediatric Dentistry Clinic were included in the study. Questionnaires were used to collect data on parents' demographic characteristics, previous training in traumatic dental injury and treatment and knowledge of avulsed permanent teeth and their emergency management. Chi-square tests were used to identify differences in responses for different variables.


RESULTS
More than half of the participating parents were female (69.6%) and between the age of 30-39 years (64.4%). Most (90.7%) reported that they would not replant the avulsed tooth in its socket, and most (68.2%) gave correct answers regarding the optimum time for which an avulsed tooth should be left out of the mouth prior to replantation. However, most parents were not sufficiently informed about the appropriate method for cleaning a dirty avulsed tooth or transporting it to a dentist or doctor. None of the demographic characteristics or training status was found to have a statistically significant effect on the number of correct responses regarding appropriate management of avulsion injuries (P>.05)


CONCLUSION
This study revealed that the parental level of knowledge about the emergency treatment of avulsion in children is inadequate and that educational campaigns are necessary to improve proper emergency management of dental avulsion.