LLukas22/scidocs huggingface dataset:
An adaptive heuristic approach for distributed QoS-based service composition

QoS-based service selection becomes a commonly accepted procedure to support rapid and dynamic web service composition. In this paper, we study the problem of QoS-based service selection in distributed QoS management environments where QoS values of alternative services are maintained by distributed QoS registries. A distributed heuristic approach is proposed to solve the problem efficiently with a high approximation ratio, and enable adaptability in distributed cross-organization environments with data privacy protection and a low cost of communication. The proposed approach consists of four stages in which variable elimination is used to reduce the size of the problem; constraint decomposition allows performing service selection independently on each QoS registry; supplementary service selection and concentrated optimization improve the approximation ratio. Performance analyses and simulation experiments show that the proposed approach performs efficiently with close-to-optimal results and fits well to distributed QoS management environments.
Reporting of measures of accuracy in systematic reviews of diagnostic literature

BACKGROUND
There are a variety of ways in which accuracy of clinical tests can be summarised in systematic reviews. Variation in reporting of summary measures has only been assessed in a small survey restricted to meta-analyses of screening studies found in a single database. Therefore, we performed this study to assess the measures of accuracy used for reporting results of primary studies as well as their meta-analysis in systematic reviews of test accuracy studies.


METHODS
Relevant reviews on test accuracy were selected from the Database of Abstracts of Reviews of Effectiveness (1994-2000), which electronically searches seven bibliographic databases and manually searches key resources. The structured abstracts of these reviews were screened and information on accuracy measures was extracted from the full texts of 90 relevant reviews, 60 of which used meta-analysis.


RESULTS
Sensitivity or specificity was used for reporting the results of primary studies in 65/90 (72%) reviews, predictive values in 26/90 (28%), and likelihood ratios in 20/90 (22%). For meta-analysis, pooled sensitivity or specificity was used in 35/60 (58%) reviews, pooled predictive values in 11/60 (18%), pooled likelihood ratios in 13/60 (22%), and pooled diagnostic odds ratio in 5/60 (8%). Summary ROC was used in 44/60 (73%) of the meta-analyses. There were no significant differences in measures of test accuracy among reviews published earlier (1994-97) and those published later (1998-2000).


CONCLUSIONS
There is considerable variation in ways of reporting and summarising results of test accuracy studies in systematic reviews. There is a need for consensus about the best ways of reporting results of test accuracy studies in reviews.
Helpfulness of user-generated reviews as a function of review sentiment, product type and information quality

Helpfulness of user-generated reviews has not been studied adequately in terms of the interplay between review sentiment (favorable, unfavorable and mixed) and product type (search and experience). Moreover, the ways in which information quality relates to review helpfulness remain largely unknown. Hence, this paper seeks to answer the following two research questions: (1) How does the helpfulness of user-generated reviews vary as a function of review sentiment and product type? (2) How does information quality relate to the helpfulness of user-generated reviews across review sentiment and product type? Data included 2190 reviews drawn from Amazon for three search productsddigital cameras, cell phones, and laser printersdas well as three experience productsdbooks, skin care, and music albums. Review sentiment was ascertained based on star ratings. Investigation of the research questions relied on the statistical procedures of analysis of variance, and multiple regression. Review helpfulness was found to vary across review sentiment independent of product type. Besides, the relationship between information quality and review helpfulness was found to vary as a function of review sentiment as well as product type. The paper concludes with a number of implications for research and practice. © 2015 Elsevier Ltd. All rights reserved.
Towards explaining spatial touch perception: Weighted integration of multiple location codes

Touch is bound to the skin - that is, to the boundaries of the body. Yet, the activity of neurons in primary somatosensory cortex just mirrors the spatial distribution of the sensors across the skin. To determine the location of a tactile stimulus on the body, the body's spatial layout must be considered. Moreover, to relate touch to the external world, body posture has to be evaluated. In this review, we argue that posture is incorporated, by default, for any tactile stimulus. However, the relevance of the external location and, thus, its expression in behaviour, depends on various sensory and cognitive factors. Together, these factors imply that an external representation of touch dominates over the skin-based, anatomical when our focus is on the world rather than on our own body. We conclude that touch localization is a reconstructive process that is adjusted to the context while maintaining all available spatial information.
CONTINGENCIES ON MANAGEMENT ACCOUNTING PRACTICES IN ESTONIAN MANUFACTURING COMPANIES

Current paper examines the management accounting practices of Estonian manufacturing companies, exploring the main impacts on them within a contingency theory framework. The methodology comprises an analysis of 62 responses to a postal questionnaire survey carried out among the largest Estonian manufacturing companies. On the one hand, the present research aims to confirm earlier findings related to the ‘contingent factors’ that influence management accounting, on the other, to identify possible new factors, such as, the legal accounting environment and shortage of properly qualified accountants. 1 University of Tartu, Faculty of Economics and Business Administration, Ass. Prof. of Accounting Department, PhD, E-mail: toom@mtk.ut.ee 2 University of Tartu, Faculty of Economics and Business Administration, Lecturer of Accounting Department, PhD student, E-mail: kertu@mtk.ut.ee Acknowledgements: The authors are grateful to prof. Robert Chenhall from Monash University for his assistance and to visiting prof. Gary Cunningham from Stuttgart University of Technology for his constructive comments. The financial support from the Estonian Science Foundation is herein acknowledged with gratitude.
Free reactive oxygen species and nephrotoxicity of contrast agents.

BACKGROUND
The nephrotoxicity induced by contrast media remains a serious clinical problem, and the underlying mechanism has not been completely understood. Experimental and clinical investigations suggest that reactive oxygen species (ROS) are critical determinants of radiocontrast nephropathy (RCN), and that antioxidants can prevent this damage.


METHODS
Cultured human proximal renal tubule cells (HK-2) were exposed to hydrogen peroxide (H2O2) at different concentrations. H2O2-induced tubular DNA damage was examined in the presence of the antioxidant MESNA (sodium-2-mercaptoethane sulphonate). The induction of DNA damage was measured with the alkaline comet assay (single cell gel electrophoresis). We also studied 12 patients with stable renal impairment (median baseline creatinine 296 micromol/l; range: 203-495 micromol/l) undergoing cardiac catheterization/intervention prospectively. Patients received 800 mg MESNA intravenously 30 min before exposure to the contrast agent in addition to 0.9% saline hydration.


RESULTS
In the cell cultures, oxidative stress on HK-2 cells induced increased DNA migration in the comet assay. Treatment of tubular cells with the antioxidant MESNA prior to the addition of H2O2 significantly reduced DNA migration in the comet assay. In the clinical study, treatment of the patients with MESNA prevented the adverse renal effect of contrast media (median serum creatinine 293; range: 187-433 micromol/l) 48 h after coronary angiography/intervention.


CONCLUSION
Both the in vivo and the in vitro studies suggest that the ROS-mediated renal injury could be inhibited by a potent antioxidant such as MESNA.
[Depression and anxiety in menopausal women: associated factors].

PURPOSE
to determine the prevalence of depression and anxiety in climacteric women and the probable factors responsible for its occurrence.


METHODS
a transversal study that has selected 93 women attended at a climacteric outpatient clinic, from May 2006 to August 2007. Inclusion criteria were: women from 40 to 65 years old who agreed with participating in the project.


EXCLUSION CRITERIA
patients in hormonal therapy, hormone-therapy by implant, DIUs and depo injections in the preceding six months, endocrinopathies leading to menstrual irregularities, hepatopathies, thrombopathies, use of drugs which interfere in the menstrual cycle, anxiolytics and antidepressants (as their use indicates previous diagnosis of mood disorders), hysterectomy, oophorectomy, cancer or psychiatric disease, and patients who had been submitted to radio or chemotherapy. During the interview, four questionnaires were applied: Anamnesis, containing socio-demographic, clinical and living habits data; Blatt-Kupperman's Menopausal Index for climacteric syndrome diagnosis; Anxiety sub-scale of the Hospital Anxiety and Depression scale (HADS-A) for anxiety diagnosis; and Beck's Depression Inventory for the diagnosis of depression. Descriptive and correlation analysis among the variables, chi2 and Hosmer-Lemeshow tests were performed using the Statistica Software program, version 6.


RESULTS
the average depression prevalence among the patients was 36.8%, while that of anxiety was 53.7%. There was no significant difference between the prevalence of depression and anxiety in the three phases of climacterium. There was a significant relationship between the presence of moderate climacteric symptoms and the presence of mood alterations (p<0.001). Depression was more frequent in women with anxiety (OR=4.2) and insomnia (OR=4.9), having a job being a protection factor (OR=0.2). Risk factors related to anxiety were the presence of depression (OR=6.1) and antecedents of pre-menstrual tension (OR=7.0).


CONCLUSIONS
the prevalence of depression and anxiety is high in climacterium, being possible to detect risk factors related to their occurrence.
Educational Data Mining & Students’ Performance Prediction

It is important to study and analyse educational data especially students’ performance. Educational Data Mining (EDM) is the field of study concerned with mining educational data to find out interesting patterns and knowledge in educational organizations. This study is equally concerned with this subject, specifically, the students’ performance. This study explores multiple factors theoretically assumed to affect students’ performance in higher education, and finds a qualitative model which best classifies and predicts the students’ performance based on related personal and social factors. Keywords—Data Mining; Education; Students; Performance; Patterns
Fractional flow reserve versus angiography for guiding percutaneous coronary intervention.

BACKGROUND
In patients with multivessel coronary artery disease who are undergoing percutaneous coronary intervention (PCI), coronary angiography is the standard method for guiding the placement of the stent. It is unclear whether routine measurement of fractional flow reserve (FFR; the ratio of maximal blood flow in a stenotic artery to normal maximal flow), in addition to angiography, improves outcomes.


METHODS
In 20 medical centers in the United States and Europe, we randomly assigned 1005 patients with multivessel coronary artery disease to undergo PCI with implantation of drug-eluting stents guided by angiography alone or guided by FFR measurements in addition to angiography. Before randomization, lesions requiring PCI were identified on the basis of their angiographic appearance. Patients assigned to angiography-guided PCI underwent stenting of all indicated lesions, whereas those assigned to FFR-guided PCI underwent stenting of indicated lesions only if the FFR was 0.80 or less. The primary end point was the rate of death, nonfatal myocardial infarction, and repeat revascularization at 1 year.


RESULTS
The mean (+/-SD) number of indicated lesions per patient was 2.7+/-0.9 in the angiography group and 2.8+/-1.0 in the FFR group (P=0.34). The number of stents used per patient was 2.7+/-1.2 and 1.9+/-1.3, respectively (P<0.001). The 1-year event rate was 18.3% (91 patients) in the angiography group and 13.2% (67 patients) in the FFR group (P=0.02). Seventy-eight percent of the patients in the angiography group were free from angina at 1 year, as compared with 81% of patients in the FFR group (P=0.20).


CONCLUSIONS
Routine measurement of FFR in patients with multivessel coronary artery disease who are undergoing PCI with drug-eluting stents significantly reduces the rate of the composite end point of death, nonfatal myocardial infarction, and repeat revascularization at 1 year. (ClinicalTrials.gov number, NCT00267774.)
The Propensity for Irrational Beliefs Among Young Adults of Divorced Parents

Summary Within the framework of Rational Emotive models and the Intergenerational Transmission Theory, the present study tests the hypothesis that the propensity for irrational thinking is greater among young adults of divorced parents than among their counterparts of married parents. Sixty students (30 of married and 30 of divorced parents) responded to the Propensity for Irrational Beliefs (PIB) and Measure of Intimacy questionnaires. The results reveal an opposite trend from the expected direction, that is, subjects of married parents scored higher than the control group on the PIB. Furthermore, the results show no relationship between the two dependent variables: degree of intimacy and propensity for irrational thinking. These results are discussed within the context of other demonstrated effects of parental divorce on children and possible future directions for similar research.
A survey on computational intelligence approaches for predictive modeling in prostate cancer

Predictive modeling in medicine involves the development of computational models which are capable of analysing large amounts of data in order to predict healthcare outcomes for individual patients. Computational intelligence approaches are suitable when the data to be modelled are too complex for conventional statistical techniques to process quickly and efficiently. These advanced approaches are based on mathematical models that have been especially developed for dealing with the uncertainty and imprecision which is typically found in clinical and biological datasets. This paper provides a survey of recent work on computational intelligence approaches that have been applied to prostate cancer predictive modeling, and considers the challenges which need to be addressed. In particular, the paper considers a broad definition of computational intelligence which includes evolutionary algorithms (also known as metaheuristic optimisation, nature inspired optimisation algorithms), Artificial Neural Networks, Deep Learning, Fuzzy based approaches, and hybrids of these, as well as Bayesian based approaches, and Markov models. Metaheuristic optimisation approaches, such as the Ant Colony Optimisation, Particle Swarm Optimisation, and Artificial Immune Network have been utilised for optimis∗Corresponding author Email addresses: georgina.cosma@ntu.ac.uk (Georgina Cosma), david.brown@ntu.ac.uk (David Brown), m.archer1992@hotmail.co.uk (Matthew Archer), masood.khan@uhl-tr.nhs.uk (Masood Khan), graham.pockley@ntu.ac.uk (A. Graham Pockley) Preprint submitted to Journal of LTEX Templates November 4, 2016 ing the performance of prostate cancer predictive models, and the suitability of these approaches are discussed.
Experimental and Numerical Studies of External Steel Plate Strengthened Reinforced Concrete Coupling Beams

This paper aims to develop a new method for strengthening reinforced concrete coupling beams. Experiments were conducted to test three full-scale RC coupling beams, of which two were strengthened by bolted external steel plates on the side faces of the beams and the other one acted as a control specimen without strengthening. The improvements to strength, deformation and energy dissipation of the external plate strengthened RC coupling beams were observed from the experimental results. Nonlinear finite element analysis was carried out to model the strengthened and non-strengthened coupling beams. The material properties used for concrete and reinforcement in the numerical analysis were validated by the laboratory tests. As experimental study showed that there was a small slip between the bolted connection and the concrete wall pier, a bilinear model was used to simulate the load-slip behaviour of the bolt connections. The model was calibrated by the experimental results from the plate strengthened coupling beams. Numerical parametric study found that the small slip (>3mm) between the bolt connection and the concrete wall could significantly affect the load carrying capacity of the bolt connections as well as the structural performance of the strengthened coupling beams. The numerical model developed is very useful for investigating strengthened beams with other configurations and other reinforcement details.
The Lamin B receptor is essential for cholesterol synthesis and perturbed by disease-causing mutations

Lamin B receptor (LBR) is a polytopic membrane protein residing in the inner nuclear membrane in association with the nuclear lamina. We demonstrate that human LBR is essential for cholesterol synthesis. LBR mutant derivatives implicated in Greenberg skeletal dysplasia or Pelger-Huët anomaly fail to rescue the cholesterol auxotrophy of a LBR-deficient human cell line, consistent with a loss-of-function mechanism for these congenital disorders. These disease-causing variants fall into two classes: point mutations in the sterol reductase domain perturb enzymatic activity by reducing the affinity for the essential cofactor NADPH, while LBR truncations render the mutant protein metabolically unstable, leading to its rapid degradation at the inner nuclear membrane. Thus, metabolically unstable LBR variants may serve as long-sought-after model substrates enabling previously impossible investigations of poorly understood protein turnover mechanisms at the inner nuclear membrane of higher eukaryotes.
Semantic - Based Querying Using Ontology in Relational Database of Library Management System

The traditional Web stores huge amount of data in the form of Relational Databases (RDB) as it is good at storing objects and relationships between them. Relational Databases are dynamic in nature which allows bringing tables together helping user to search for related material across multiple tables. RDB are scalable to expand as the data grows. The RDB uses a Structured Query Language called SQL to access the databases for several data retrieval purposes. As the world is moving today from the Syntactic form to Semantic form and the Web is also taking its new form of Semantic Web. The Structured Query of the RDB on web can be a Semantic Query on Semantic Web. The SPARQL is the Query Language recommended by W3C for the RDF(Resource Description Framework). RDF is a directed, labeled graph data format for representing information in the Web and is a very important layer of the Semantic Web Architecture. In this paper we consider the Library Management System (LMS) database, taking some tuples of the LMS Relational Schema. We discuss how the RDF code is scripted and validated using RDF Validator and how RDF Triples are generated. Later we give the graphical representation of the RDF triples and see the process of extracting ontology from the RDF Schema and application of the Semantic Query.
Dual Band-Notched Ultra-Wideband Planar Monopole Antenna with M- and W-Slots

A compact ultra-wideband microstrip-fed planar monopole antenna with dual band-notch characteristic is presented. Dual notched frequency bands are achieved by embedding an M-slot in the radiating patch and a W-slot in the ground beneath the feeding line. And the characteristics of the dual band-notched can be controlled by adjusting the length and position of the corresponding slot. Experimental results show that the proposed antenna, with compact size of 35 × 35 mm2, has an impedance bandwidth of 2.75 ∼ 11.30GHz for VSWR less than 2.0, except two notched bands of 3.25 ∼ 4.20 GHz and 5.23 ∼ 6.10GHz. Moreover, this antenna exhibits good omnidirectional radiation patterns in the H-plane, stable antenna gains over the operation band, and perfect group delay in the time-domain.
Job Creation or Destruction? Labor Market Effects of Wal-Mart Expansion

This paper estimates the effect of Wal-Mart expansion on retail employment at the county level. Using an instrumental variables approach to correct for both measurement error in entry dates and endogeneity of the timing of entry, I find that Wal-Mart entry increases retail employment by 100 jobs in the year of entry. Half of this gain disappears over the next five years as other retail establishments exit and contract, leaving a long-run statistically significant net gain of 50 jobs. Wholesale employment declines by approximately 20 jobs due to Wal-Mart's vertical integration. No spillover effect is detected in retail sectors in which Wal-Mart does not compete directly, suggesting Wal-Mart does not create agglomeration economies in retail trade at the county level.
Effects of ginger constituents on the gastrointestinal tract: role of cholinergic M3 and serotonergic 5-HT3 and 5-HT4 receptors.

The herbal drug ginger (Zingiber officinale Roscoe) may be effective for treating nausea, vomiting, and gastric hypomotility. In these conditions, cholinergic M (3) receptors and serotonergic 5-HT (3) and 5-HT (4) receptors are involved. The major chemical constituents of ginger are [6]-gingerol, [8]-gingerol, [10]-gingerol, and [6]-shogaol. We studied the interaction of [6]-gingerol, [8]-gingerol, [10]-gingerol (racemates), and [6]-shogaol with guinea pig M (3) receptors, guinea pig 5-HT (3) receptors, and rat 5-HT (4) receptors. In whole segments of guinea pig ileum (bioassay for contractile M (3) receptors), [6]-gingerol, [8]-gingerol, [10]-gingerol, and [6]-shogaol slightly but significantly depressed the maximal carbachol response at an antagonist concentration of 10 µM. In the guinea pig myenteric plexus preparation (bioassay for contractile 5-HT (3) receptors), 5-HT maximal responses were depressed by [10]-gingerol from 93 ± 3 % to 65 ± 6 % at an antagonist concentration of 3 µM and to 48 ± 3 % at an antagonist concentration of 5 µM following desensitization of 5-HT (4) receptors and blockade of 5-HT (1) and 5-HT (2) receptors. [6]-Shogaol (3 µM) induced depression to 61 ± 3 %. In rat esophageal tunica muscularis mucosae (bioassay for relaxant 5-HT (4) receptors), [6]-gingerol, [8]-gingerol, [10]-gingerol, and [6]-shogaol (2-6.3 µM) showed no agonist effects. The maximal 5-HT response remained unaffected in the presence of the compounds. It is concluded that the efficiency of ginger in reducing nausea and vomiting may be based on a weak inhibitory effect of gingerols and shogaols at M (3) and 5-HT (3) receptors. 5-HT (4) receptors, which play a role in gastroduodenal motility, appear not to be involved in the action of these compounds.