Miracle-dz/UniFAR-FTUs huggingface dataset:
Beam-searching and transmission scheduling in millimeter wave communications

Millimeter wave (mmWave) wireless networks rely on narrow beams to support multi-gigabit data rates. Nevertheless, the alignment of transmitter and receiver beams is a time-consuming operation, which introduces an alignment-throughput tradeoff. A wider beamwidth reduces the alignment overhead, but leads also to reduced directivity gains. Moreover, existing mmWave standards schedule a single transmission in each time slot, although directional communications facilitate multiple concurrent transmissions. In this paper, a joint consideration of the problems of beamwidth selection and scheduling is proposed to maximize effective network throughput. The resulting optimization problem requires exact knowledge of network topology, which may not be available in practice. Therefore, two standard-compliant approximation algorithms are developed, which rely on underestimation and overestimation of interference. The first one aims to maximize the reuse of available spectrum, whereas the second one is a more conservative approach that schedules together only links that cause no interference. Extensive performance analysis provides useful insights on the directionality level and the number of concurrent transmissions that should be pursued. Interestingly, extremely narrow beams are in general not optimal.
Synchronization control of biaxial electric coordination

With the aim of improving the performance of biaxial electric coordination, in this paper, a new synchronization control method is proposed. The effectiveness of the proposed method is examined by simulation and experiments on a machine tool controlled by a CNC system based on fieldbus servo driver. The experimental results show that synchronization error is decreased obviously in the adopted method.
Struggling with a Roman inheritance. A response to Versluys

I am very grateful to Miguel John Versluys for this paper, which raises several important issues that derive from current debates in Roman archaeology. I am aware of the context of Versluys's arguments as I am a contributor to the forthcoming volume Globalization and the Roman world (which Versluys has jointly edited; Pitts and Versluys 2014). I am pleased to be able to develop some of the themes outlined in my chapter for that volume (Hingley 2014b) through this reflection upon Versluys's contribution to the developing debate. The issues raised by Versluys are particularly timely since a number of younger colleagues have observed that the critical focus provided by what I shall term ‘post-colonial Roman archaeologies’ (PCRAs) is stifling innovative research. PCRA is the term I use to address the body of research and publication characterized by Versluys as ‘Anglo-Saxon Roman archaeology’ (for reasons given below). I did not attend the TRAC session at Frankfurt to which Versluys refers, but I recognize his observation that there is a genuine concern about the form and content of PCRAs arising from Roman archaeologists both in Britain and overseas. PCRAs have focused around two core themes: (1) critiquing the concept of Romanization and (2) the development of new ways of approaching the Roman Empire. Versluys suggests that this discussion has culminated in ‘an uncomfortable ending’ (p. 1) for the Romanization debate and his proposal includes the reintroduction of this concept. Taking a rather different perspective, I shall propose that a dynamic and transformative agenda is spreading across several continents and that PCRAs form an important aspect of this developing perspective.
Integration of Multiple Temporal Qualitative Probabilistic Networks in Time Series Environments

The integration of uncertain information from different time sources is a crucial issue in various applications. In this paper, we propose an integration method of multiple Temporal Qualitative Probabilistic Networks (TQPNs) in time series environments. First, we present the method for learning TQPN from time series data. The TQPN's structure is constructed using Dynamic Bayesian Networks learning based on Markov Chain Monte Carlo. Furthermore, the corresponding qualitative influences are obtained by the conditional probabilities. Secondly, based on rough set theory, we integrate multiple TQPNs into a single QPN that preserves as much information as possible. Specifically, we take the rough-set-based dependency degree as the strength of qualitative influence, and then make the rules to solve the ambiguities reduction and cycles deletion problems which arise from the integration of different TQPNs. Finally, we verify the feasibility of the integration method by the simulation experiments.
Nonlinear H∞ control of a third-order synchronous generator model

The objective of this paper is to design a group of nonlinear H∞ controllers for a third-order model of a synchronous generator to attenuate external disturbance. It is supposed that an unknown mechanical perturbation is added to the nominal mechanical power so that drives the power system to an unknown equilibrium point. We will obtain the Hamilton-Jacobi-Isaacs (HJI) inequality related to disturbance attenuation problem of synchronous generator. For this system, HJI inequality is a complex problem to solve and direct solution is hardly reachable as a result, Taylor series approach will be used to solve HJI inequality until fourth order. It will be shown that in addition to stabilization of the system in vicinity of equilibrium point, the controllers also significantly diminish the effect of perturbation and in a limited time drive the states to their nominal values. Simulation results demonstrate the effectiveness and robustness of the nonlinear H∞ controllers.
Influenza Seasonality: Underlying Causes and Modeling Theories

Influenza (or “flu”) leads to the hospitalization of more than 200,000 people yearly and results in 36,000 deaths from flu or flu-related complications in the United States ([15][1]), striking both the elderly and infant populations particularly hard ([24][2]). Two members of the
The effect of repetitive stimulation on the passive electrical properties of the presynaptic terminal of the squid giant synapse

The resting electrical properties of the presynaptic terminal of the squid giant synapse have been determined by using constant current pulses. After short periods of repetitive stimulation, the terminal resistance, time constant and capacitance are found to be increased. These changes are absent in terminals bathed in artificial sea water containing no calcium, and sea water containing 5 mM cobalt. It seems likely that these changes are associated with transmitter release.
Who Needs Laboratories and Who Needs Statins?: Comparative and Cost-Effectiveness Analyses of Non–Laboratory-Based, Laboratory-Based, and Staged Primary Cardiovascular Disease Screening Guidelines

Background—Early detection and treatment of cardiovascular disease (CVD) risk factors produces significant clinical benefits, but no consensus exists on optimal screening algorithms. This study aimed to evaluate the comparative and cost-effectiveness of staged laboratory-based and non–laboratory-based total CVD risk assessment. Methods and Results—We used receiver operating characteristic curve and cost-effectiveness modeling methods to compare strategies with and without laboratory components and used single-stage and multistage algorithms, including approaches based on Framingham risk scores (laboratory-based assessments for all individuals). Analyses were conducted using data from 5998 adults in the Third National Health and Nutrition Examination Survey without history of CVD using 10-year CVD death as the main outcome. A microsimulation model projected lifetime costs, quality-adjusted life years (QALYs), and incremental cost-effectiveness ratios for 60 Framingham-based, non–laboratory-based, and staged screening approaches. Across strategies, the area under the receiver operating characteristic curve was 0.774 to 0.780 in men and 0.812 to 0.834 in women. There were no statistically significant differences in area under the receiver operating characteristic curve between multistage and Framingham-based approaches. In cost-effectiveness analyses, multistage strategies had incremental cost-effectiveness ratios of $52 000/QALY and $83 000/QALY for men and women, respectively. Single-stage/Framingham-based strategies were dominated (higher cost and lower QALYs) or had unattractive incremental cost-effectiveness ratios (>$300 000/QALY) compared with single-stage/non–laboratory-based and multistage approaches. Conclusions—Non–laboratory-based CVD risk assessment can be useful in primary CVD prevention as a substitute for laboratory-based assessments or as the initial component of a multistage approach. Cost-effective multistage screening strategies could avoid 25% to 75% of laboratory testing used in CVD risk screening with predictive power comparable with Framingham risks.
Electroencephalographic Brain Dynamics of Memory Encoding in Emotionally Arousing Context

Emotional content/context enhances declarative memory through modulation of encoding and retrieval mechanisms. At encoding, neurophysiological data have consistently demonstrated the subsequent memory effect in theta and gamma oscillations. Yet, the existing studies were focused on the emotional content effect and let the emotional context effect unexplored. We hypothesized that theta and gamma oscillations show higher evoked/induced activity during the encoding of visual stimuli when delivered in an emotionally arousing context. Twenty-five healthy volunteers underwent evoked potentials (EP) recordings using a 21 scalp electrodes montage. They attended to an audiovisual test of emotional declarative memory being randomly assigned to either emotionally arousing or neutral context. Visual stimulus presentation was used as the time-locking event. Grand-averages of the EP and evoked spectral perturbations were calculated for each volunteer. EP showed a higher negative deflection from 80 to 140 ms for the emotional condition. Such effect was observed over central, frontal and prefrontal locations bilaterally. Evoked theta power was higher in left parietal, central, frontal, and prefrontal electrodes from −50 to 300 ms in the emotional condition. Evoked gamma power was higher in the emotional condition with a spatial distribution that overlapped at some points with the theta topography. The early theta power increase could be related to expectancy induced by auditory information processing that facilitates visual encoding in emotional contexts. Together, our results suggest that declarative memory enhancement for both emotional content and emotional context are supported by similar neural mechanisms at encoding, and offer new evidence about the brain processing of relevant environmental stimuli.
FAKTOR-FAKTOR DETERMINAN YANG BERHUBUNGAN DENGAN KEPADULIAN PESERTA DIDIK SMP CENDANA PEKANBARU TERHADAP LINGKUNGAN SEKOLAH

Formal environmental education can be obtained at the school, because the school which isinvestment values about the environment in order to enhance students' awareness of theenvironment. This needs to be inculcated in the students because they are the youngergeneration as a determinant of the future of the nation. Formulation of the problem in thisstudy is (1) whether there is a relationship between parental employment and livingenvironment with concern for the living environment (2) Which factor is most associatedwith concern of Students Cendana Junior High School Pekanbaru to school environmentbased on parental employment and living environment.Concern for the environment isinfluenced by various aspects such as knowledge, attitudes and responsibilities. Researchwas conducted in Pekanbaru Cendana Junior high school through survey methods, arequired primary data were obtained from leaners by questionnaire and secondary datahave been available at the school. Data analysis used chi-square tests and multipleregression analysis with helping of SPSS program.The results confirm that the studentscaring view of working parents whether they are CPI and non-CPI. Their parents who arenot CPI employees care more than CPI employees . While the students caring view ofliving environment in the complex and the outside of the CPI complex, the students who liveoutside of the CPI complex are more concerned than they live in the CPI complex. Comparethe children of CPI employees who live in complex and outside the complex, the children ofCPI employees who live outside the complex more concerned than they live in the complex.Then from the three variables that concern affecting are knowledge, attitude andresponsibility, the more dominant influence learners concern is the aspect of knowledge.
Diet quality – what is it and does it matter?

Abstract Objective Measures of diet quality have evolved with a number of scoring indices currently in use. They are increasingly being used to examine epidemiological associations between dietary intake and nutrition-related health outcomes. The present review aims to describe current diet quality tools and their applications, and to examine the relationship between diet quality and morbidity and mortality. Design A search was conducted of MEDLINE, Cochrane, EMBASE, CINAHL and ProQuest electronic databases. Inclusion criteria were: English language; published from 2004 on; conducted in adult populations; longitudinal/cohort/case–control or cross-sectional study; included a theoretically defined measure of diet quality. Results A total of twenty-five indices of overall diet quality and/or variety were found, with components ranging from nutrients only to adherence to recommended food group servings, to variety within healthful food groups. The majority of studies reviewed had methodological weaknesses but demonstrated that higher dietary quality was consistently inversely related to all-cause mortality, with a protective effect of moderate magnitude. The associations were stronger for men and for all-cause and CVD mortality. Conclusions The limitations of both the indices and the studies that use them need to be considered when interpreting and comparing results. However, diet quality indices do appear to be able to quantify risk of some health outcomes, including biomarkers of disease and risk of CVD, some cancers and mortality. Further research is needed to improve the validity of these tools and to adapt them for use in clinical dietetic practice.
El ciberacoso : una aproximación criminológica

The cyberbullying phenomenon, also known as online harassment, is an area of increasing scientific interest to criminology, but is also controversial and a difficult topic to study. In this context, this research aims to explore the complexity of this problem and its consequences for both the individual and the society. For this purpose, it has been carried out a literature review of the current publications referring to the prevalence, incidence and consequences about this type of victimization, and the analysis of the results of 150 questionnaires filled out by university students of Catalonia to determine whether the data obtained from this analysis agrees with what has been found in the global literature or on the contrary, there are some differences in relation to this phenomenon. This paper also aims to contribute in the research of a kind of victimization which nowadays has not been enough studied.
Cross-cultural equivalence and validity of the Multicultural Personality Questionnaire in an interculltural context

Googling for the term 'intercultural effectiveness' yields over 600,000 hits not surprisingly. There are good grounds for arguing that the need for intercultural effectiveness was never greater than in the last decades. Transnational relocations of ethnic groups have never involved as many people from as many different cultural groups as at present. Further, there has been a rapid increase in the number of international tertiary education students. In addition, the advent of cheaper airfares has contributed to a vast increase in international tourism. Of particular relevance to the present article is the expansion in the globalisation of business. One effect of this change is that today workers at all levels in an organisation may be required to operate within foreign cultures which might share little similarity with their home culture. Another increasingly important effect is that employees in western countries must deal with immigrant workers from a variety of cultures. Given such dramatic changes in the workplace, it is not surprising that there is a growing interest in competencies or abilities to deal with such a cultural diversity. Therefore, there is a considerable need to identify the factors that underlie the intercultural effectiveness of employees, not only for selection purposes, such as for expatriate employees or human resource managers, but also for assessing possible training needs of both expatriate and local employees. Several personality dimensions have been suggested as being related to an individual's ability to deal effectively with cultural diversity, including flexibility (Arthur & Bennett 1995), open-mindedness and self-confidence (Kets de Vries & Mead 1991), and cultural empathy and tolerance (Hannigan 1990). Nevertheless, few attempts have been made to develop valid instruments for measuring them. Most studies have relied heavily on expert evaluations of the relevance of dimensions assumed to be important for expatriates' success, or have found their origin in the 'Big Five'
Travel Time Prediction Based on Pattern Matching Method

Abstract The microwave detection technology has become an effective tool for monitoring highway traffic flow in China. The cross section traffic data collected provides models opportunity for travel time prediction. However, the sparseness of data somewhat constrains the prediction accuracy. To tackle this problem, the paper presents a highway travel time prediction algorithm based on pattern matching method. First, a pattern library is established by choosing traffic volume and speed as its certain state components and time as its uncertain state component. Then, the space-time two-dimensional linear interpolation method is used to calculate the mean speed and subsequently the travel time. Finally, similar patterns are obtained using K Nearest Neighbor approach and predicted travel time is calculated by the Weighted Average method. The case study shows that the pattern matching method for travel time prediction based on microwave detection data produces sufficient accuracy, which solves the problem of sparse detectors effectively.
A Reference Architecture for Big Data Systems in the National Security Domain

Acquirers, system builders, and other stakeholders of big data systems need to define requirements, develop and evaluate solutions, and integrate systems together. A reference architecture enables these software engineering activities by standardizing nomenclature, defining key solution elements and their relationships, collecting relevant solution patterns, and classifying existing technologies. Within the national security domain, existing reference architectures for big data systems have not been useful because they are too general or are not vendor-neutral. We present a reference architecture for big data systems that is focused on addressing typical national defence requirements and that is vendor-neutral, and we demonstrate how to use this reference architecture to define solutions in one mission area.
THE OPTIMIZATION OF EDUCATIONAL ENVIRONMENT FOR STUDENTS

The paradigm of adapting school to the learning necessities and possibilities of the student, characteristic for future systems of education and for contemporary network type educational systems requires a diversity of learning situations and experiences, built in accordance with the possibilities and the needs of all student categories, in order to respond to the principles of: “inclusive education”, “education for all” and “integrated education”. Starting from the premise that the scholastic environment increases the learning efficiency for the students, our paper tries to identify the deficiencies, the critical aspects of the learning environment, as fundament for adopting optimization measures. A lower degree of satisfaction presented the following aspects: the potential of the didactic activities in stimulating the motivational needs of the student for learning; the communication and the relations between the students and the teachers; the endowment of the educational spaces with adequate materials and equipment.
Establishing the severity of personality disorder.

OBJECTIVE The authors developed a simplified method of rating the severity of personality disorder. METHOD The new rating method is based on four levels of severity: no personality disorder, personality difficulty, simple personality disorder, and diffuse personality disorder. The new method was applied to different diagnostic systems and was then compared with an old rating system based on six severity levels. Data were derived from a longitudinal study in which 163 patients with anxiety and depressive disorders had initial assessments of personality status and were followed up over 2 years. Ratings of psychiatric symptoms were made by using the Comprehensive Psychopathological Rating Scale over this period. The results were analyzed with special attention to linear and quadratic trends. RESULTS The new system was clinically useful in separating patients' initial assessments and outcomes. Patients with no personality disorder had the lowest initial symptom scores and the best outcomes, and those with diffuse personality disorder had the highest initial levels of symptoms and improved least over the 2 years. When the patients were separated by the old classification system, 72% of the variation between groups was accounted for by linear and quadratic trends; the comparable percentage was 97% when the patients were categorized by the new system. CONCLUSIONS The new system of rating severity of personality disturbance is an improvement on existing methods and allows ratings to be made easily from DSM-IV and ICD-10.
Increasing age and tear size reduce rotator cuff repair healing rate at 1 year

Background and purpose — There is a need to understand the reasons why a high proportion of rotator cuff repairs fail to heal. Using data from a large randomized clinical trial, we evaluated age and tear size as risk factors for failure of rotator cuff repair. Patients and methods — Between 2007 and 2014, 65 surgeons from 47 hospitals in the National Health Service (NHS) recruited 447 patients with atraumatic rotator cuff tendon tears to the United Kingdom Rotator Cuff Trial (UKUFF) and 256 underwent rotator cuff repair. Cuff integrity was assessed by imaging in 217 patients, at 12 months post-operation. Logistic regression analysis was used to determine the influence of age and intra-operative tear size on healing. Hand dominance, sex, and previous steroid injections were controlled for. Results — The overall healing rate was 122/217 (56%) at 12 months. Healing rate decreased with increasing tear size (small tears 66%, medium tears 68%, large tears 47%, and massive tears 27% healed). The mean age of patients with a healed repair was 61 years compared with 64 years for those with a non-healed repair. Mean age increased with larger tear sizes (small tears 59 years, medium tears 62 years, large tears 64 years, and massive tears 66 years). Increasing age was an independent factor that negatively influenced healing, even after controlling for tear size. Only massive tears were an independent predictor of non-healing, after controlling for age. Interpretation — Although increasing age and larger tear size are both risks for failure of rotator cuff repair healing, age is the dominant risk factor.