Miracle-dz/UniFAR-FTUs huggingface dataset:
Empirical Evidencies for the Budget Deficits Co-Integration in the Old European Union Members: Are there any Interlinkages in Fiscal Policies?

In the last years, the fiscal harmonization among the European Union members has become a pillar of economic integration and of fiscal and financial stability in the European area. The institutional changes, the semi-failure of the “old” Stability and Growth Pact as well as the recent waves of enlargements all these were put a greater emphasis on this issue inducing a higher pressure for fiscal discipline. In this context, the objective of the paper is to examines recent empirical evidences for bilateral and multilateral integration between fiscal policies, as this are synthesised by budget deficits, of old European Union members in the framework of the Johansen co-integration procedure with a preliminary appliance of the principal component analysis. The study finds that the dynamic of European fiscal policies takes place under the impact of some common driving forces which leads to a differentiate behaviour of two sub regional-groups individualized by the budget deficit series evolutionary patterns. Overall, it concludes that there could be find empirical evidences to support the thesis that a process of fiscal integration is currently running at least at the level of old European Union countries.
Chronological changes in lung cancer surgery in a single Japanese institution

Background The aim of this study was to evaluate the chronological changes in epidemiological factors and surgical outcomes in patients with lung cancer who underwent surgery in a single Japanese institution. Patients and methods A clinicopathological database of patients with lung cancer who underwent surgery with curative intent from January 1974 to December 2014 was reviewed. The chronological changes in various factors, including patient’s age, sex, histological type, tumor size, pathological stage (p-stage), surgical method, operative time, intraoperative blood loss, 30-day mortality, and postoperative overall survival (OS), were evaluated. Results A total of 1,616 patients were included. The numbers of resected patients, females, adenocarcinomas, p-stage IA patients, and age at the time of surgery increased with time, but tumor size decreased (all P<0.0001). Concerning surgical methods, the number of sublobar resections increased, but that of pneumonectomies decreased (P<0.0001). The mean operative time, intraoperative blood loss, and the postoperative 30-day mortality rate decreased (all P<0.0001). When the patients were divided into two groups (1974–2004 and 2005–2014), the 5-year OS rates for all patients and for p-stage IA patients improved from 44% to 79% and from 73% to 89%, respectively (all P<0.0001). The best 5-year OS rate was obtained for sublobar resection (73%), followed by lobectomy (60%), combined resection (22%), and pneumonectomy (21%; P<0.0001). Conclusion Changes in epidemiological factors, a trend toward less invasive surgery, and a remarkably improved postoperative OS were confirmed, which demonstrated the increasingly important role of surgery in therapeutic strategies for lung cancer.
Automated and accurate traffic surveillance system

In this work, a traffic surveillance system, which contains background subtraction, occlusion handling and tracking steps, is designed in order to extract traffic parameters from low resolution video sequences. In every step, utilized algorithms are improved and more accurate results than existing approaches are obtained. Additionally, a new automatic Region of Interest detection approach is proposed to make the system fully automated.
Learning prototypes and distances (LPD). A prototype reduction technique based on nearest neighbor error minimization

A prototype reduction algorithm is proposed which simultaneous train both a reduced set of prototypes and a suitable local metric for these prototypes. Starting with an initial selection of a small number of prototypes, it iteratively adjusts both the position (features) of these prototypes and the corresponding local-metric weights. The resulting prototypes/metric combination minimizes a suitable estimation of the classification error probability. Good performance of this algorithm is assessed through experiments with a number of benchmark data sets and through a real two-class classification task which consists of detecting human faces in unrestricted-background pictures.
Song types, song performance, and the use of repertoires in dark-eyed juncos (Junco hyemalis)

Song performance encompasses the idea of how physiologically demanding different songs are to sing, and this is thought to reflect the singing ability of individual birds. In the dark-eyed junco (Junco hyemalis), each male has a repertoire of song types, some of which are shared with other males in the population. We used 4 measures of performance, based on trade-offs between song traits, to test if song performance is consistent among the song types making up the repertoire of individual males. We also tested if song types differ consistently in performance regardless of which males sing them. We found low but significant correlations of performance measures among the song types of individual males. This contrasts with highly consistent differences in performance among song types, regardless of which males sing them. We conclude that performance of single song types, as evaluated by trade-off--based measures of performance, gives little information about male singing ability. As song types differ in performance, we asked if males use the song types in their repertoires differently. We found that juncos use higher performance song types during bouts of more motivated singing, as evaluated by the length of songs, suggesting that song types may be preferentially used in different contexts depending on their performance. Copyright 2009, Oxford University Press.
The Effect of Noise on the Number of Extreme Points

Assume that Y is a noisy version of a point set X in convex position. How many vertices does the convex hull of Y have, that is, what is the number of extreme points of Y? We consider the case where X is an (epsilon,kappa)-sample of a sphere in Rd and the noise is random and uniform: Y is obtained by replacing each point x in X by a point chosen uniformly at random in some region R(x) of size delta around x. We give upper and lower bounds on the expected number of extreme points in Y when R(x) is a ball (in arbitrary dimension) or an axis-parallel square (in the plane). Our bounds depend on the size n of X and $\delta$, and are tight up to a polylogarithmic factor. These results naturally extend in various directions (more general point sets, other regions R(x). ). We also present experimental results, showing that our bounds for random noise provide good estimators of the behavior of snap-rounding, that is when Y is obtained by rounding each point of X to the nearest point on a grid of step delta.
The use of landmark-based wayfinding strategies across the adult lifespan

Individuals can employ different landmark-based wayfinding strategies to acquire spatial knowledge and support navigation. Allocentric strategy use is associated with a cognitive representation of a learned environment that allows flexible navigation, while egocentric strategy use is associated with uni-directional knowledge that only supports accurate navigation in tasks that involve reproducing learned behaviours. While many studies have investigated strategy use during navigation, how strategy use develops during spatial learning remains under- researched. Therefore, this thesis primarily investigated the processes underlying strategy selection. Participants’ strategy preference during various navigation tasks, including a novel strategy assessment paradigm developed specifically for this research, revealed that individuals adopt the most accurate strategy available – be it allocentric or egocentric – in accordance with the demands of the concurrent navigation task. Interestingly, when allocentric knowledge was required for accurate navigation, participants initially employed a suboptimal egocentric strategy before switching to an allocentric strategy, suggesting that egocentric knowledge precedes allocentric knowledge. Finally, participants were not subject to performance-related decrements associated with the effort of switching strategies. Interestingly, during spatial learning, participants acquired spatial knowledge related to alternative strategies, and selectively encoded landmarks that were compatible with the use of multiple strategies, which may explain why switching wayfinding strategies is cognitively efficient. This thesis also investigated the effects of aging on strategy selection. Strategy preference changes across the adult lifespan, with decreasing allocentric strategy use primarily attributed to reduced hippocampal function, and impaired egocentric strategy use associated with age-related learning and memory deficits. Analysis revealed that older adults exhibited a task-independent preference for egocentric strategy use, and therefore experienced difficulty with tasks that required allocentric knowledge. However, when egocentric strategy use most efficiently supported accurate navigation, younger and older adults performed similarly, suggesting that egocentric strategy use is largely unaffected by aging. Finally, age differences in strategy preference and spatial learning were observed when the most efficient route learning strategy differed between decision points, supporting findings of increasing susceptibility to switching costs with age. In summary, young adults flexibly employ a variety of strategies to optimise navigational efficacy, while older adults' strategy choices are affected by age-related difficulties with allocentric strategy use and increased vulnerability to strategy switching costs.
Representations of Circular Words

In this article we give two different ways of representations of circular words. Representations with tuples are intended as a compact notation, while representations with trees give a way to easily process all conjugates of a word. The latter form can also be used as a graphical representation of periodic properties of finite (in some cases, infinite) words. We also define iterative representations which can be seen as an encoding utilizing the flexible properties of circular words. Every word over the two letter alphabet can be constructed starting from ab by applying the fractional power and the cyclic shift operators one after the other, iteratively.
A Language Model Approach to Spam Filtering

We present a classification model for semi-structured documents based on statistical language modelling theory which outperforms extant approaches to spam filtering on the LingSpam email corpus [1]. We also introduce two variants of a novel discounting technique for higher-order N -gram language models developed in the light of the spam filtering problem.
Updated Systematic Review and Meta-Analysis of the Performance of Risk Prediction Rules in Children and Young People with Febrile Neutropenia

Introduction Febrile neutropenia is a common and potentially life-threatening complication of treatment for childhood cancer, which has increasingly been subject to targeted treatment based on clinical risk stratification. Our previous meta-analysis demonstrated 16 rules had been described and 2 of them subject to validation in more than one study. We aimed to advance our knowledge of evidence on the discriminatory ability and predictive accuracy of such risk stratification clinical decision rules (CDR) for children and young people with cancer by updating our systematic review. Methods The review was conducted in accordance with Centre for Reviews and Dissemination methods, searching multiple electronic databases, using two independent reviewers, formal critical appraisal with QUADAS and meta-analysis with random effects models where appropriate. It was registered with PROSPERO: CRD42011001685. Results We found 9 new publications describing a further 7 new CDR, and validations of 7 rules. Six CDR have now been subject to testing across more than two data sets. Most validations demonstrated the rule to be less efficient than when initially proposed; geographical differences appeared to be one explanation for this. Conclusion The use of clinical decision rules will require local validation before widespread use. Considerable uncertainty remains over the most effective rule to use in each population, and an ongoing individual-patient-data meta-analysis should develop and test a more reliable CDR to improve stratification and optimise therapy. Despite current challenges, we believe it will be possible to define an internationally effective CDR to harmonise the treatment of children with febrile neutropenia.
Genetic mapping and manipulation: chapter 4--SNPs: introduction and two-point mapping.

Copyright: © 2006 David Fay and Aaron Bender. This is an open-access article distributed under the terms of the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited. To whom correspondence should be addressed. E-mail: davidfay@uwyo.edu Genetic mapping and manipulation: Chapter 4-SNPs: Introduction and two-point mapping* David Fay, Aaron Bender, Department of Molecular Biology, University of Wyoming, Laramie, Wyoming 82071-3944 USA
Relationship of Fibrinogen Levels and Hemostatic Abnormalities With Organ Damage in Hypertension

Elevated plasma levels of fibrinogen and activated coagulation pathways are risk factors of cardiovascular disease in the general population. In a cross-sectional study of a case series, we investigated the relationship between fibrinogen and hemostatic markers with target-organ damage (TOD) in patients with arterial hypertension. Prothrombin time, partial thromboplastin time, fibrinogen, fibrin D-dimer, prothrombin fragment 1+2 (F1+2), and antithrombin III were measured in 352 untreated patients with mild to moderate essential hypertension and 92 normotensive controls. Staging of TOD was assessed according to W.H. O. guidelines by clinical evaluation and laboratory tests including measurements of creatinine clearance, proteinuria, ophthalmoscopy, electrocardiography, echocardiography, and ultrasound examination of major arteries. F1+2 concentrations were significantly greater in hypertensive patients than normotensive controls and were positively correlated with blood pressure. Age, blood pressure levels, duration of hypertension, smoking, HDL-cholesterol, triglycerides, and plasma fibrinogen, fibrin D-dimer, and F1+2 levels were significantly related to the presence and severity of TOD in univariate analysis. Plasma fibrinogen and D-dimer levels were related to organ damage independent of age, blood pressure, duration of hypertension, and smoking status. Separate analysis indicated significant association of fibrinogen and D-dimer levels with cardiac, cerebrovascular, peripheral vascular, and renal damage. In conclusion, elevated plasma levels of fibrinogen and a prothrombotic state are associated with the presence and severity of TOD in patients with essential hypertension and may contribute to the development of atherosclerotic disease in these patients.
A Framework for Studying Economic Interactions (with applications to corruption and business cycles)

Most economic models implicitly or explicitly assume that interactions between economic agents are 'global' - in other words, each agent interacts in a uniform manner with every other agent. However, localized interactions between microeconomic agents are a pervasive feature of reality. What are the implications of more limited interaction? One set of mathematical tools which appears useful in exploring the economic implications of local interactions is the theory of interacting particle systems. Unfortunately, the extant theory mainly addresses the long-time behavior of infinite systems, and focuses on the issue of ergodicity; many economic applications involve a finite number of agents and are concerned with other issues, such as the extent of shock amplification. In this paper, I introduce a framework for studying local interactions that is applicable to a wide class of games. In this framework, agents receive shocks which are stochastically independent; payoffs depend both upon the shocks and the strategies of other agents. In finite games, ergodicity is straightforward to determine. In finite games which evolve in continuous time, the stationary distribution (if it exists) may be computed easily; furthermore, in this class of games, I prove that any stationary distribution may be attained by suitable choice of payoff functions using shocks which are distributed uniform on (0, 1). In systems in which all interactions are global, I prove that nonlinear behavior can arise even in the infinite limit (thus demonstrating that laws of large numbers can fail in systems characterized by interaction), despite the fact that the only driving forces are agent-level iid disturbances. Using numerical methods, I investigate the properties of the processes as one passes from discrete to continuous time, as one alters the pattern of interaction, and as one increases the number of interacting agents. In so doing, I provide further evidence that the existence of local interactions can change the aggregate behavior of an economic system in fundamental ways, and that the form of that interaction has important implications for its dynamic properties.
Incidence, time course, and predictors of early malignant ventricular arrhythmias after non-ST-segment elevation myocardial infarction in patients with early invasive treatment.

AIMS The incidence of non-ST-segment elevation myocardial infarction (NSTEMI) is increasing. With the limited intensive care facilities, knowledge of the total risk and predictors of acute life-threatening arrhythmias is of major interest to guide the decision on the intensity of care at the time of admission. METHODS AND RESULTS We continuously monitored 588 consecutive patients with NSTEMI admitted to the coronary care unit of a primary and tertiary care centre for malignant ventricular arrhythmias requiring defibrillation. Ninety-seven per cent of the patients underwent coronary angiography during the index hospital admission. Total rate of malignant ventricular arrhythmias and mortality was 2.6% (n=15) and 3.6% (n=21), respectively. More than two-thirds of arrhythmias occurred within the first 12 h after onset of symptoms. In a bootstrapped multivariable regression analysis, the only factor associated with the occurrence of malignant ventricular arrhythmia was higher white blood cell count on admission. Popular risk assessment tools such as Thrombolysis in Myocardial Infarction, Platelet glycoprotein IIb/IIIa in Unstable angina: Receptor Suppression Using Integrilin Therapy, and Predicting Risk of Death in Cardiac disease Tool were predictive of mortality but not of early arrhythmia. CONCLUSION Patients with NSTEMI treated aggressively with early revascularization are at low risk for developing life-threatening arrhythmias. The occurrence of such events remains difficult to predict. The role of baseline inflammatory status as a determinant merits further investigations.
Associations of Parenting Dimensions and Styles with Internalizing Symptoms in Children and Adolescents: A Meta-Analysis

ABSTRACT The present meta-analysis integrates research from 1,015 studies on associations of parenting dimensions and styles with internalizing symptoms in children and adolescents. Parental warmth, behavioral control, autonomy granting, and authoritative parenting showed very small to small negative concurrent and longitudinal associations with internalizing symptoms. In contrast, harsh control, psychological control, authoritarian, and, in part, neglectful parenting were associated with higher levels of internalizing symptoms. Parental warmth, behavioral control, harsh control, psychological control, autonomy granting, and authoritative parenting predicted change in internalizing symptoms over time, with associations of internalizing symptoms with parental warmth, psychological control, and authoritative parenting being bidirectional. Moderating effects of study characteristics are identified. Implications for future research and practice are discussed.
Social constructivism and collaborative learning in social networks: the case of an online masters programme in adult learning

This study investigates how students in an online Masters Programme in Adult Learning, although geographically dispersed used SNs to develop a supportive environment that enables collaborative learning to support and deepen their learning. Web 2.0 social software provided the tools for various forms of communication and information sharing amongst student within the social networks. This study shows how the use of Web 2.0 tools such as wikis, podcasts, blogs, chat rooms, social networking sites and email have the potential to expand the learning environment, increase participation and enrich the learning experience. Rapid technological developments transform our world into a global society which is ever changing and interconnected. The SNs as a learning environment in this technological driven global society is complex and not clearly defined; therefore it was not easy for me to understand the nature of the SNs as learning environment. The social nature of this study has therefore urged me to use social constructivism as a conceptual framework to gain insights into how students have used the social networks to develop a supportive environment that enables collaborative learning to support and deepen their learning. The utilisation of social constructivism as theoretical lens has helped to broaden my perceptions of the SNs as learning environment, to deepen my understanding of how learning occurs in the SNs and to comprehend learner behaviour within this pedagogical space. Social constructivists view learning as a social process in which people make sense of their world by interacting with other people (Doolittle & Camp, 1999). Social constructivists belief in the social nature of knowledge, and the belief that knowledge is the result of social interaction and language usage, and, thus, is a shared, rather than an individual, experience (Prawat & Floden, 1994). Furthermore, they believe that this social interaction always occurs within a socio-cultural context, resulting in knowledge that is bound to a specific time and place (Vygotsky, 1978).
An Analysis and Improvement of the BLS-GSM Denoising Method

Modeling image properties using the Gaussian scale mixture (GSM) model in a multiresolution transform space is the basic idea of a denoising algorithm proposed by Portilla et al. [Image denoising using scale mixtures of Gaussians in the wavelet domain, IEEE Transactions on Image Processing, 12 (2003), pp. 1338–1351]. Under this model and using the correlations between pyramid coefficients, the Bayesian least squares (BLS) of each coeffici ent is used to estimate its original value. In this article, we analyze and discuss the BLS-GSM algorithm, its drawbacks and benefits in more detail. An analytical parameter study of this denoising approach is provided as well. Additionally, we propose a localized version of this algorithm and experimentally show that it outperforms the original method both numerically and visually. We also show that the resulting method is state-of-the-art in terms of PSNR. Source Code The C++ implementation of the BLS-GSM algorithm in addition to an online demo are available at the IPOL web page of this article 1 .