Miracle-dz/UniFAR-FTUs huggingface dataset:
Multi-user HetNets with imperfect CSI: Iterative equalization aided IA

In this manuscript we consider several cells with heterogeneous characteristics, macro and small, working under the same spectrum. These cells serve a set of users, which are split between the two cell types. Under a frequency reuse of one, the users allocated to different cells generate harmful interference between them. We apply interference alignment (IA) at both macro and small-cell users to tackle that interference, which requires the availability of channel state information (CSI) at the transmitters. The more realistic case of imperfect CSI is considered, which leads to imperfectly interference aligned and, consequently, to performance degradation. Iterative space-frequency equalization is performed at the receiver side to cope with this residual interference. The results have shown the robustness of iterative equalization to imperfect CSI and its efficiency in removing interference generated by the poorly aligned interference. Close to matched filter bound performance is achieved with a very few number of iterations.
Vectorcardiographic Changes During Intracoronary Injections

To determine mechanisms of myocardial toxicity of radiopaque media and to correlate specifically induced changes in the composition of coronary artery blood with changes in the surface electrocardiogram, simultaneous recordings were made from Frank leads X, Y, and Z during intracoronary injections of radiopaque media and special test solutions. The study group consisted of 19 patients, 29 to 64 years of age, with either abnormal or normal-appearing coronary vessels on cineangiography. Recordings were analyzed with an electronic integrator, an oscilloscope, and directly from photographic tracings.With injections of sodium-containing radiopaque media into the right coronary system, the spatial mean T vector increased in magnitude and deviated to the left and superiorly. With injections into the left coronary system, the T vector increased in magnitude and shifted to the right, downward, and anteriorly. Changes in the QRS complex were less constant but, when present, consisted of slight prolongation of the QRS duration and shift of the QRS vector toward the area of myocardium perfused by the coronary system injected.Similar T-vector changes could be produced by intracoronary injections of saline solutions, but minimal or no changes were observed with injections of hypertonic mannitol, Ringer's solution, hypoxic blood, plasma, and 5% dextrose in water.It is concluded that the T-wave changes are caused by regional prolongation of the repolarization process, presumably due to extracellular sodium excess or sodium-calcium antagonism. Delay of the repolarization process and the resulting potential difference may be responsible for re-entrant excitation and the ventricular arrhythmias observed during coronary angiography.
Applying Cognitive Linguistics: Identifying some current research foci (figurative language in use, constructions and typology)

In recent years, Cognitive Linguistics (CL) has established itself not only as a solid theoretical approach but also as an important source from which different applications to other fields have emerged. In this introductory article, we explore some of the current, most relevant topics in applied CL-oriented studies grouped into three main strands: Analyses of figurative language (both metaphor and metonymy) in use, constructions and typology. An outline of the contents of the eight chapters included in this special issue is provided, explaining their contributions to these research areas and highlighting their methodological rigour.
Cyclotron-Line Features from Near-critical Fields. II. On the Effect of Anisotropic Radiation Fields

We assess the impact of radiation anisotropy on the line shapes that result from relativistic magnetic Compton scattering in the low-density/high-field regime. A Monte Carlo implementation of radiation transport allows for spatial diffusion of photons in arbitrary geometries and accounts for relativistic angular redistribution. The cross section includes natural line widths and photon "spawning" from up to fourth-harmonic photons. In our first paper we noted that even if the photon injection is isotropic, a strongly anisotropic radiation field rapidly ensues. We now investigate the angular distribution of cyclotron spectra emerging from an internally irradiated magnetized plasma with a prescribed global geometry (either cylindrical or plane parallel) and the effects of anisotropic photon injection on the line shapes. Varying the input angular distribution permits a better understanding of the line formation process in more realistic scenarios where the radiative mechanisms are influenced by the intrinsic anisotropy of the field and by moderate relativistic beaming. In general, the line features are most pronounced along the directions of the anisotropic continuum injection and tend to be weakened in other directions, relative to the line features resulting from an isotropic continuum injection. We find that the enhancements at the line wings of the fundamental, which appear prominently in the case of isotropic continuum injection, are strongly suppressed along the direction of anisotropy in the case of beamed continuum injection, regardless of geometry or beaming pattern.
Silence during art therapy: The art therapist’s perspective

ABSTRACT This study examines the perceptions and experiences of Israeli art therapists regarding the use of silence during art therapy, and its effects on the art therapist, the client and the therapeutic relationship. The researchers interviewed 15 art therapists using the Consensual Qualitative Research (CQR) analysis method (Hill, C. E. [2012]. Consensual qualitative research: A practical resource for investigating social science phenomena. Washington, DC: American Psychological Association). The interview covered five primary domains: (1) silence as an art therapy tool—the art therapist’s depiction of a therapist who uses silence in therapy; (2) reasons for using silence in art therapy—the rationale for using silence as an intervention tool and the therapist’s perceptions regarding the client’s use of silence; (3) the art therapist’s perceptions of the effects of silence on the client, the therapeutic relationship and the therapeutic dialogue; (4) the role of the art therapist during moments of silence in the therapy room; and (5) the art therapist’s perception of the uniqueness of the art medium during moments of silence in therapy. These findings can lead to a greater understanding of the importance and contribution of silence in art therapy.
Uniqueness of reconstruction and an inversion procedure for thermoacoustic and photoacoustic tomography with variable sound speed

The paper contains an analytic reconstruction formula in thermoacoustic and photoacoustic tomography. It works for any geometry of point detectors placement along a closed surface and for variable sound speed satisfying a non-trapping condition. It is shown how this formula leads in particular to eigenfunction expansion reconstructions, including those recently obtained for the case of a uniform background. A uniqueness of reconstruction result is also obtained.
Controlled mixing enhancement in turbulent rectangular jets responding to periodically forced inflow conditions

We present numerical studies of active flow control applied to jet flow. We focus on rectangular jets, which are more unstable than their circular counterparts. The higher level of instability is expressed mainly by an increased intensity of mixing of the main flow with its surroundings. We analyse jets with aspect ratio Ar = 1, Ar = 2 and Ar = 3 at Re = 10,000. It is shown that the application of control with a suitable excitation (forcing) at the jet nozzle can amplify the mixing and qualitatively alter the character of the flow. This can result in an increased spreading rate of the jet or even splitting into nearly separate streams. The excitations studied are obtained from a superposition of axial and flapping forcing terms. We consider the effect of varying parameters such as the frequency of the excitations and phase shift between forcing components. The amplitude of the forcing is 10% of the inlet centreline jet velocity and the forcing frequencies correspond to Strouhal numbers in a range St = 0.3–0.7. It is shown that qualitatively different flow regimes and a rich variety of possible flow behaviours can be achieved simply by changing aspect ratio and forcing parameters. The numerical results are obtained applying large eddy simulation in combination with a high-order compact difference code for incompressible flows. The solutions are validated based on experimental data from literature for non-excited jets for Ar = 1 at Re = 1.84 × 105 and Ar = 2 at Re = 1.28 × 105. Both the mean velocities as well as their fluctuations are predicted with good accuracy.
Measuring tie strength in implicit social networks

Given a set of people and a set of events attended by them, we address the problem of measuring connectedness or tie strength between each pair of persons. The underlying assumption is that attendance at mutual events gives an implicit social network between people. We take an axiomatic approach to this problem. Starting from a list of axioms, which a measure of tie strength must satisfy, we characterize functions that satisfy all the axioms. We then show that there is a range of tie-strength measures that satisfy this characterization. A measure of tie strength induces a ranking on the edges of the social network (and on the set of neighbors for every person). We show that for applications where the ranking, and not the absolute value of the tie strength, is the important thing about the measure, the axioms are equivalent to a natural partial order. To settle on a particular measure, we must make a non-obvious decision about extending this partial order to a total order. This decision is best left to particular applications. We also classify existing tie-strength measures according to the axioms that they satisfy; and observe that none of the "self-referential" tie-strength measures satisfy the axioms. In our experiments, we demonstrate the efficacy of our approach; show the completeness and soundness of our axioms, and present Kendall Tau Rank Correlation between various tie-strength measures.
What measurable properties can predict preferential flow ?

In a model applied for predictive use, it is important to identify which measurable soil properties might be most sensitive to preferential flow. The quantitative characterization of preferential flow paths in terms of their density, conductance and continuity is difficult. Recent evidence, primarily from comparison of observations at widely different scales, may help in identifying the properties most likely to be useful. Comparisons of case studies show that macropores and layer contrasts are dominant influences over long as well as short water-flow pathways. Large-scale studies show that preferential flow is not necessarily terminated by zones deficient of obvious macropores or by irregularities in layer contrasts. Thirty-six published field tests from which a maximum travel velocity (v max) can be inferred show no clear trend of maximum flow rate with distance spanned by the test which favors a simple scalability of preferential flow. Other significant observations are that v max is highly sensitive to the temporal continuity of water supply but minimally sensitive to the type of subsurface medium. Effective characterizations may need to rely largely on factors outside the Darcy-Richards formulation. Introduction There is not yet an accepted theory or model of the general case of preferential flow, so it is important to consider what features of the soil-water system need to be included in such a theory. This presentation considers recent evidence, primarily from comparison of observations at widely different scales, that may help in identifying the properties and circumstances of greatest sensitivity in the quantitative prediction of preferential flow. It considers very broadly grouped conditions and properties, for example soil vs. porous rock, rather than specific soil features. Preferential flow is defined here as flow through certain portions of the pore space that proceeds faster than would be predicted for the medium as a whole by traditional Darcy-Richards models with parameters typical of related granular media. In most applications, the quantitative prediction of preferential flow concerns chiefly travel velocity, flux and the fraction of the space occupied by preferentially flowing water. Travel velocity is important to establish contaminant travel times. Flux, usually presented as flux density, would normally be related to the travel velocity by a specific factor. This factor may sometimes be interpreted as the fraction of the space where preferential flow occurs, so that of these three interrelated quantities, may be only two are necessary. Another issue is the prediction of when and where preferential flow
Detection of irregular heartbeats using tensors

Automatic classification of heartbeats in different categories is important for ECG analysis. The number of irregular heartbeats in a signal can for example be used as a risk stratifier for sudden cardiac death. Current heart-beat classification methods typically use time or frequency domain features to characterize heartbeats. We propose the use of tensors to incorporate the structural information that is present in multilead ECG channels. Since different ECG leads provide information on a particular orientation in space, more robust detection can be done if all leads are considered. After preprocessing and heartbeat detection using wavelet-based methods, the ECG signal is segmented beat-by-beat. The different heartbeats are then placed in a three-dimensional tensor with dimensions time, channels and heartbeats. Canonical Polyadic Decomposition is used to decompose the tensor. The results are three loading vectors, corresponding to the dimensions of the original tensor. Through analysis of these loading vectors, irregular heartbeats can be detected using a simple thresholding procedure. The method has been applied to a subset of the St.-Petersburg Institute of Cardiological Technics 12-lead Arrhythmia Database available on Physionet. When applying the method to the first 10 signals, we obtain a mean sensitivity and specificity of more than 90%. These results indicate that the presented method is a new and reliable way of performing irregular heartbeat detection.
Flexible Access Control to JPEG 2000 Image Code-Streams

JPEG 2000 is an international standard for still image compression in the 21st century. Part 8 of the standard, named JPSEC, is concerned with all the security aspects, in particular to access control and authentication. This paper presents a novel access control scheme for JPEG 2000 image code-streams. The proposed scheme is secure against collusion attacks and highly efficient. The scheme is also very flexible, allowing access control to JPEG 2000 image code-streams according to any combination of resolution, quality layer and region of interest. The "encrypt once, decrypt many ways" property of our scheme is designed to work seamlessly with the "compress once, decompress many ways" feature of the JPEG 2000 image code-streams. Our prototype implementation shows that the scheme is practical and is completely compatible with the core part of the JPEG 2000 standard.
Searching for a business case for quality in Medicaid managed care.

BACKGROUND Despite the prevalence of evidence-based interventions to improve quality in health care systems, there is a paucity of documented evidence of a financial return on investment (ROI) for these interventions from the perspective of the investing entity. PURPOSES To report on a demonstration project designed to measure the business case for selected quality interventions in high-risk high-cost patient populations in 10 Medicaid managed care organizations across the United States. METHODOLOGY/APPROACH Using claims and enrollment data gathered over a 3-year period and data on the costs of designing, implementing, and operating the interventions, ROIs were computed for 11 discrete evidence-based quality-enhancing interventions. FINDINGS A complex case management program to treat adults with multiple comorbidities achieved the largest ROI of 12.21:1. This was followed by an ROI of 6.35:1 for a program which treated children with asthma with a history of high emergency room (ER) use and/or inpatient admissions for their disease. An intervention for high-risk pregnant mothers produced a 1.26:1 ROI, and a program for adult patients with diabetes resulted in a 1.16:1 return. The remaining seven interventions failed to show positive returns, although four sites came close to realizing sufficient savings to offset investment costs. PRACTICE IMPLICATIONS Evidence-based interventions designed to improve the quality of patient care may have the best opportunity to yield a positive financial return if it is focused on high-risk high-cost populations and conditions associated with avoidable emergency and inpatient utilization. Developing the necessary tracking systems for the claims and financial investments is critical to perform accurate financial ROI analyses.
The ideal structure of the $C\sp *$-algebras of infinite graphs

We classify the gauge-invariant ideals in the C*-algebras of infinite directed graphs, and describe the quotients as graph algebras. We then use these results to identify the gauge-invariant primitive ideals in terms of the structural properties of the graph, and describe the K-theory of the C*-algebras of arbitrary infinite graphs.
Analysis of Power Saving Effect for Dynamic Power Management

Dynamic power management (DPM) is a design methodology for dynamically reconfiguring systems to provide the requested services and performance levels with a minimum number of active components or a minimum load on such components. The principle of DPM selectively shuts down or depresses performance of some components that are idle. Many approaches have been exploited for DPM, different approach leads to different effects of power saving. Former analysis of power saving effect of DPM approach used to use theoretical computation or simulation which are difficult to reflect the real efficiency of power saving of the target DPM approach, this paper presents an analytic approach which could be embedded into the real implementation of DPM architecture to monitor the behavior of DPM approach, record information it needs for analysis, and analyze power saving effect offline, it could also support systems that have multi low power states. Experiment results shows that this analytic approach gets the same results as the simulated results
An Improved PAPR Reduction Algorithm in Cognitive Radio System

Non-continuous orthogonal frequency division multiplexing (NC-OFDM) is an effective data transmission technology in cognitive radio (CR) system with high frequency efficiency and anti selective channel fading property. But as with OFDM systems, NC-OFDM also owns large side lobe power and high peak-to-average power ratio (PAPR), which leads to spectrum leakage of licensed users (LUs) and distortion of signal amplification. In this paper, a joint optimization algorithm is proposed. Multi-choice sequence (MCS) for side lobe suppression and fountain codes for high PAPR reduction are adopted in the algorithm. The simulation results suggest that the new algorithm can reduce the side lobe power radiation and PAPR, finally enhance the overall performance of the system effectively.
Metaphor Detection

Because of the ubiquity of metaphors in language, metaphor processing is a very important task in the field of natural language processing. The first step towards metaphor processing, and probably the most difficult one, is metaphor detection. In the first part of this paper, we review the theoretical background for metaphors and the models and implementations that have been proposed for their detection. We then build corpora for detecting three types of metaphors: IS-A metaphors, metaphors formed with the preposition `of' and metaphors formed with a verb. For the first two tasks, we train supervised classifiers using semantic features. For the third task, we use features commonly used in text categorization.
PENGARUH PENDIDIKAN ETIKA BISNIS DAN RELIGIUSITAS TERHADAP PERSEPSI ETIS MAHASISWA AKUNTANSI

Abstrak: Pengaruh Pendidikan Etika Bis n is dan Religiusitas Terhadap Persepsi Etis Mahasiswa Akuntansi. Penelitian ini bertujuan melihat hubungan antara pendidikan etika, gender, religiusitas, dan performa akademik terhadap persepsi etis mahasiswa. Penelitian ini juga ingin membuktikan perbedaan persepsi antara mahasiswa yang sudah atau sedang mengambil mata kuliah etika bisnis dan yang belum, antara mahasiswa laki-laki dan perempuan, serta mahasiswa dengan IPK ≥ 3,3 dan <3,3. Metode analisis data yang digunakan yaitu analisis regresi berganda dan uji beda independent sample t-test. Hasil penelitian menunjukkan bahwa pendidikan etika dan performa akademik tidak berpengaruh signifikan terhadap persepsi etis mahasiswa, berbeda halnya dengan religiusitas dan gender yang memiliki pengaruh yang signifikan. Hasil uji beda menunjukkan perbedaan persepsi etis antara yang sudah atau sedang mengambil mata kuliah etika bisnis dengan yang belum, sama halnya dengan mahasiswa laki-laki dan perempuan. Kata kunci: Pendidikan etika, Religiusitas, Persepsi Etis Abstract: The Influence of Business Ethics Education and Religiosity to Ethical Perception of College Students. The objective of this study is to examine the influence of ethics education, gender, religiosity, and academic performance to the ethical perception of undergraduate. The additional examination was done to know the differences perception between students who have accomplished business ethics course and who have not accomplished business ethics course yet, male and female students, and students who have high GPA and low GPA. The analysis data method uses multiple regression and independent sample t-test. The result indicates that ethics education and academic performance have no significant influence on the ethical perception of college students. On the other hand, religiosity and gender have a significant influence on ethical perception. The result of independent sample t-test indicates that significantly difference between student’s perceptions who have accomplished business ethics course and who have not accomplished yet, likewise between male and female students. Keyword: Ethics Education, Religiosity, Ethical Perception
AUTOMATIC TRANSCRIPTION OF MEETINGS USING TOPIC-ORIENTED LANGUAGE MODEL ADAPTATION

This paper presents an automatic speech recognition (ASR) system dedicated for meetings of the National Congress of Japan. The distinctive features of the congressional meeting speech are wide distribution and frequent change of topics. For more accurate transcription, such topics should be emphasized in a language model one after another. Therefore, we introduce two approaches for topic adaptation: PLSA-based approach and trigger-based approach. The PLSA-based adaptation is performed turn by turn to emphasize topics in individual pair of a question and answer. Since topics are treated in a probabilistic manner, robust adaptation is realized. On the other hand, the trigger-based adaptation stresses relevant words to the word history, thus long-distance context can be reflected into a language model. These two approaches were evaluated on real meetings of the Congress, and significant improvement of perplexity was obtained by both approaches. We also compared their effects on reduction of word error rates.