Miracle-dz/UniFAR-FTUs huggingface dataset:
Perceived pitch of whispered vowels.

Listeners were required to determine the pitch of the whispered vowels of a male and a female speaker. Continuous tape loops of the vowels were played to the listeners who were then asked to specify the perceived pitch by comparison with that of a pure‐tone oscillator. Initially, the perceived pitch of each of the vowels corresponded very closely to F2 as measured from spectrograms. In subsequent tests in which the listeners were told to expect more than one pitch, two listeners identified additional pitches corresponding to F1 for the vowels /a/ and /ɔ/ of both speakers. The accuracy and consistency of formant determination using this simple “listen‐and‐compare” method compare favorably with results obtainable from more complex analysis procedures.
SEWordSim: software-specific word similarity database

Measuring the similarity of words is important in accurately representing and comparing documents, and thus improves the results of many natural language processing (NLP) tasks. The NLP community has proposed various measurements based on WordNet, a lexical database that contains relationships between many pairs of words. Recently, a number of techniques have been proposed to address software engineering issues such as code search and fault localization that require understanding natural language documents, and a measure of word similarity could improve their results. However, WordNet only contains information about words senses in general-purpose conversation, which often differ from word senses in a software-engineering context, and the software-specific word similarity resources that have been developed rely on data sources containing only a limited range of words and word uses. In recent work, we have proposed a word similarity resource based on information collected automatically from StackOverflow. We have found that the results of this resource are given scores on a 3-point Likert scale that are over 50% higher than the results of a resource based on WordNet. In this demo paper, we review our data collection methodology and propose a Java API to make the resulting word similarity resource useful in practice. The SEWordSim database and related information can be found at http://goo.gl/BVEAs8. Demo video is available at http://goo.gl/dyNwyb.
ACCIDENTALIDAD DE AUTOMÓVILES DE USO PARTICULAR EN MÉXICO: INFLUENCIA DEL ESTRÉS Y LA AGRESIVIDAD

El objetivo de esta investigacion es estudiar la relacion entre la agresividad, el estres, y la accidentalidad en el transito vehicular de la ciudad de Cuernavaca, Morelos. Se utilizan dos escalas validadas previamente con el fin de poder evaluar el Estres y la Agresividad de los conductores. Adicionalmente, se redacto un inventario que pretende evaluar la accidentalidad vial y algunas de sus particularidades. Se encuentra que la agresividad es un fenomeno complejo desde un punto de vista psicosocial, dado que los conductores que no son considerados como agresivos presentan indicadores estadisticos diferentes a aquellos que si lo son. Adicionalmente se observa una prevalencia de accidentalidad, y una normalizacion de la agresividad en el comportamiento vial. Se concluye que los accidentes de transito reflejan una problematica de naturaleza psicosocial, dado que la relacion entre la agresividad y la accidentalidad no es lineal, sino que parece producirse como manifestacion de otros factores. Palabras clave: Transito, Agresividad, Accidentalidad, Estres, Bienestar.
HIV Training and Perceived Competence Among Doctoral Students in Psychology

A training-needs assessment was conducted at California School of Professional Psychology, Berkeley/Alameda, on students' beliefs about clinical competence, past training in human immunodeficiency virus (HIV) issues, and future training needs at the school. They perceived themselves to be somewhat competent in providing clinical services to HIV patients and members of groups at high risk for HIV A modest correlation was found between the students' total HIV training and perceived competence, but none was found between the multicultural emphasis in HIV education and their perceived competence. These findings suggest an ethical dilemma surrounding inadequately trained psychologists providing services to multicultural populations. Ethical issues concerning training standards and criteria for clinical competency are discussed. Because of the continuing spread of human immunodeficiency virus (HIV) into populations other than those initially considered to be "at risk," it is likely that health professionals will encounter someone who is HIV positive at some stage of acquired immunodeficiency syndrome (AIDS) or AIDS-related syndrome (ARC), or someone who has a friend or family member who has been affected by HIV As noted by several recent national surveys of doctoral psychology programs, little in the way of doctoral-level classroom training specifically relating to HIV is available for future psychologists. Pingitore and Morrison (1990) reported that only five (4.45%) programs offered a formal course on HIV Sayette and Mayne (1990) reported that only eight programs cited AIDS as a research area in clinical psychology. Campos, Brasfield, and Kelly (1989) re
Multi-touch rotation gestures: performance and ergonomics

Rotations performed with the index finger and thumb involve some of the most complex motor action among common multi-touch gestures, yet little is known about the factors affecting performance and ergonomics. This note presents results from a study where the angle, direction, diameter, and position of rotations were systematically manipulated. Subjects were asked to perform the rotations as quickly as possible without losing contact with the display, and were allowed to skip rotations that were too uncomfortable. The data show surprising interaction effects among the variables, and help us identify whole categories of rotations that are slow and cumbersome for users.
Fast Approximation Algorithms for the Generalized Survivable Network Design Problem

In a standard $f$-connectivity network design problem, we are given an undirected graph $G=(V,E)$, a cut-requirement function $f:2^V \rightarrow {\mathbb{N}}$, and non-negative costs $c(e)$ for all $e \in E$. We are then asked to find a minimum-cost vector $x \in {\mathbb{N}}^E$ such that $x(\delta(S)) \geq f(S)$ for all $S \subseteq V$. We focus on the class of such problems where $f$ is a proper function. This encodes many well-studied NP-hard problems such as the generalized survivable network design problem. In this paper we present the first strongly polynomial time FPTAS for solving the LP relaxation of the standard IP formulation of the $f$-connectivity problem with general proper functions $f$. Implementing Jain's algorithm, this yields a strongly polynomial time $(2+\epsilon)$-approximation for the generalized survivable network design problem (where we consider rounding up of rationals an arithmetic operation).
Rapid Object Pose Estimation from Feature-based Stereo

This paper addresses the problem of computing the three-dimensional path of a moving rigid object using a calibrated stereoscopic vision setup. The proposed system begins by detecting feature points on the moving object. By tracking these points over time, it produces clouds of 3D points that can be registered, thus giving information about the underlying camera motion. A novel correction scheme is also proposed, that compensates for the accumulated error in the computed positions by the automatic detection of loop back points in the movement of the object. An application to rapid object modelling is presented in which a hand-held object is moved in front of a camera and is reconstructed using silhouette intersection.
LUT based secure cloud computing — An implementation using FPGAs

Cloud computing is widely deployed to handle challenges such as big data processing and storage. Due to the outsourcing and sharing feature of cloud computing, security is one of the main concerns that hinders the end users to shift their businesses to the cloud. A lot of cryptographic techniques have been proposed to alleviate the data security issues in cloud computing, but most of these works focus on solving a specific security problem such as data sharing, comparison, searching, etc. At the same time, little efforts have been done on program security and formalization of the security requirements in the context of cloud computing. We propose a formal definition of the security of cloud computing, which captures the essence of the security requirements of both data and program. Analysis of some existing technologies under the proposed definition shows the effectiveness of the definition. We also give a simple look-up table based solution for secure cloud computing which satisfies the given definition. As FPGA uses look-up table as its main computation component, it is a suitable hardware platform for the proposed secure cloud computing scheme. So we use FPGAs to implement the proposed solution for k-means clustering algorithm, which shows the effectiveness of the proposed solution.
A martingale control variate method for option pricing with stochastic volatility

A generic control variate method is proposed to price options under stochastic volatility models by Monte Carlo simulations. This method provides a constructive way to select control variates which are martingales in order to reduce the variance of unbiased option price estimators. We apply a singular and regular perturbation analysis to characterize the variance reduced by martingale control variates. This variance analysis is done in the regime where time scales of associated driving volatility processes are well separated. Numerical results for European, Barrier, and American options are presented to illustrate the effectiveness and robustness of this martingale control variate method in regimes where these time scales are not so well separated.
Control Characteristics of Magnetotactic Bacteria : Magnetospi r i l lumMagnetotact i cum Strain MS-1 and Magnetospi r i l lumMagnet i cum Strain AMB-1

Magnetotactic bacteria have the potential to execute nontrivial tasks, such as microactuation, micromanipulation, and microassembly, under the influence of the controlled magnetic fields. Closed-loop control characteristics of these magnetic microorganisms depend on their self-propulsion forces (motility) and magnetic dipole moments. These properties can be controlled through the growth conditions of magnetotactic bacteria. We provide a comparison between two species of magnetotactic bacteria, i.e., Magnetospirillum magnetotacticum strain MS-1 and Magnetospirillum magneticum strain AMB-1. This comparison includes the characterization of their morphologies, magnetic dipole moments, and closed-loop control characteristics in the transient and steady states. The characterized average magnetic dipole moments of motile cells of M. magnetotacticum and M. magneticum strains are 1.4 × 10−16 A.m2 and 1.5 × 10−17 A.m2 at a magnetic field of 7.9 mT, respectively. These magnetic dipole moments are used in the realization of closed-loop control systems for each bacterial strain. The closed-loop control systems achieve point-to-point positioning of M. magnetotacticum cells at an average velocity of 32 ± 10 μm/s (approximately seven body lengths per second), and within an average region of convergence of 23 ± 10 μm (approximately four body lengths), while cells of M. magneticum strain are positioned at an average velocity of 30 ± 12 μm/s (approximately eight body lengths per second), and within an average region of convergence of 35 ± 14 μm (approximately 14 body lengths). These results suggest that the cells of M. magnetotacticum strain have a slightly greater tendency to provide desirable closed-loop control characteristics than cells of M. magneticum strain.
Loyal to Whom? The Effect of Relational Embeddedness and Managers’ Mobility on Market Tie Dissolution*

In this study we use a social embeddedness perspective to investigate the paradoxical role that individual-level embedded relationships have on the dissolution of interorganizational ties. Prior studies have found that managers who form close interpersonal relationships with clients can stabilize market ties, but these relationships can also be a source of increased market tie dissolution in the event of an exchange manager’s departure from the firm. Using data on all state-level lobbyists and clients in the Texas lobbying industry from 2001 to 2009, we confirm that a client is more likely to remain with a firm than to follow a departing manager to a new firm, but the depth, focus, and shared ownership of a manager’s client relationship moderate the impact of his or her mobility on market tie dissolution. We find that the tenure of the relationship with a manager, the number of clients on a manager’s roster, the level of attention received from a manager, and the presence of an additional manager relationship at the same firm all influence where a client places its business when a manager departs. Our results suggest that embeddedness explanations strongly predict interpersonal market tie dissolution when managers are stationary but lose their predictive power when managers move to new firms. We propose that an alternative logic of interorganizational market ties, based on power and resource dependence, may be at play in such situations.
Intersection of the complement and immune systems: a signal transduction complex of the B lymphocyte-containing complement receptor type 2 and CD19

The complement system augments the humoral immune response, possibly by a mechanism that involves the B lymphocyte membrane receptor, CR2, which binds the C3dg fragment of C3 and triggers several B cell responses in vitro. The present study demonstrates that CR2 associates with a complex of membrane proteins that may mediate signal transduction by ligated CR2. Monoclonal antibodies to CR2 immunoprecipitated from digitonin lysates of Raji B lymphoblastoid cells a membrane complex containing CR2, approximately equimolar amounts of CD19, which is a member of the immunoglobulin superfamily, and three unidentified components: p130, p50, and p20. The complex, which was immunoprecipitated also with anti-CD19, could be dissociated by Nonidet P-40, accounting for its absence in previous studies of CR2. Expression of recombinant CR2 and CD19 in K562 erythroleukemia cells led to formation of a complex that contained not only these two proteins but also p130, p50, and p20, and another component, p14. These unidentified components of the CR2/CD19 complex coimmunoprecipitated with CD19 and not with CR2 from singly transfected cells, indicating primary association with the former. CD19 replicated the capacity of CR2 to interact synergistically with mIgM for increasing free intracellular Ca2+, suggesting that the complex mediates this function of CR2. Therefore, CR2 associates directly with CD19 to become a ligand- binding subunit of a pre-existing signal transduction complex of the B cell that may be representative of a family of membrane protein complexes. This interaction between the complement and immune systems differs from that between immunoglobulin and Clq by involving membrane rather than plasma proteins, and by having complement involved in the afferent phase of the immune response.
Mammalian central nervous system trace amines. Pharmacologic amphetamines, physiologic neuromodulators

The presence of the so‐called trace amines 2‐phenylethylamine, m‐tyramine, p‐tyramine, m‐octopamine, p‐octopamine and tryptamine in the mammalian central nervous system has been known for several decades. Despite much initial interest, these amines have largely been thought of as little more than metabolic by‐products. The recent description of a family of mammalian trace amine receptors has, however, seen a resurgence of interest in the physiological role of this class of compounds. Although the trace amines are well documented to cause amphetamine‐like effects, such responses only occur at concentrations multiple orders of magnitude above normal physiological levels. As such, it seems unlikely that these responses reflect the true physiological role of the trace amines. In this article previous studies showing responses to physiologically relevant concentrations of trace amines are reviewed, along with those showing a reciprocal relationship between trace amine levels and fluctuations in basal monoaminergic tone. On the basis of these studies it is hypothesized that the trace amines function as endogenous neuromodulators of classical monoamine neurotransmitters. These effects are seen as an altered neuronal sensitivity to monoamine neurotransmitters, with no change in neuronal excitability in the absence of neurotransmitter.
Sustained-Release Oxycodone Dosing Survey of Chronic Pain Patients

Objective:To determine the dosing of sustained-release oxycodone that is typically prescribed to achieve pain relief in a mixed group of chronic pain patients. Methods:One hundred twenty-eight chronic pain patients prescribed stable doses of sustained-release oxycodone for at least 6 months were identified through chart review. Total daily dosing for both long- and short-acting opioids were recorded for each patient. Results:The prescribed frequency of dosing sustained-release oxycodone determined through clinical practice was twice daily for 33% of patients, with 67% requiring greater than twice daily dosing. Ninety-three percent of those using greater than twice daily dosing were prescribed sustained-release oxycodone 3 times daily. The median dose of sustained-release oxycodone was 80 mg for patients prescribed twice daily dosing, 60 mg when prescribed 3 times daily, and 120 mg when 4 times daily. Regularly scheduled, daily supplemental short-acting opioids were used by 47% of patients prescribed twice daily sustained-release oxycodone and 21% prescribed greater than twice daily dosing. The median total oxycodone-equivalent daily dosage (short- + long-acting opioids) was 80 mg for patients treated with either twice daily or greater than twice daily dosing. Conclusion:In a mixed group of chronic pain patients referred to a university pain management clinic, sustained-release oxycodone was prescribed more often than twice daily (usually every 8 hours) in 67% of patients. Patients maintained on every-12-hour dosing were twice as likely to use regularly scheduled, daily, short-acting opioids to achieve pain relief.
Questioning the Model Minority: Studies of Asian American Academic Performance

The current paper reviews literature on the academic performance of Asian Americans with a critical eye toward understanding the influence of discrimination on this process. Specifically, this study seeks to understand the extent to which researchers have gathered sufficient knowledge to dispel “conventional knowledge” of Asian Americans as model minorities. We questioned the extent to which studies explicitly measured student performance as a product of individual effort and Asian cultural influences, while simultaneously measuring the impact of exposure to discrimination. We present a review of studies on Asian American academic performance published 1990‐2008. Our analysis suggests that social science research has continued to perpetuate the stereotype of Asian Americans as a “model minority. ” The majority of the reviewed studies did not differentiate among Asian American ethnic and generational groups. These studies also tended to infer culture as an explanation for the high achievement of Asian Americans without examining the impact of sociopolitical factors, such as racial discrimination. In fact, many of the reviewed studies reported that Asian Americans were deficient relative to Whites on attributes thought to be related to culture (e.g., personality characteristics, parenting behaviors) while finding that they achieved academically at levels similar to or higher than Whites. Finally, the majority of these studies have not used culturally appropriate methods to test their hypotheses and research questions. Thus, we recommend that studies embrace emic/population-specific and sociopolitical (Sasao & Sue, 1993) approaches to understand and explore factors that contribute to academic achievement in this group.
A multilevel front-end stage for traction systems with a passivity-based controller

This work addresses the control of a high voltage, high power single phase rectifier suitable for traction applications. A multilevel H-bridge single phase configuration has been considered. Such a converter often presents instability problems making difficult its design and uncertain its behaviour. This paper proposes a new controller based on the passivity-based approach. Such a controller allows stability, unity-power factor, good balancing of the two DC links and a satisfactory transient behaviour even in presence of sudden load changes. A different choice of the damping parameters allows fulfilling the system requirements in terms of reduced DC link voltage error or low grid current distortion or to find an optimum trade-off between them. The better performance in comparison with a PI are demonstrated.
Prevalence of parvovirus B19 and human bocavirus DNA in the heart of patients with no evidence of dilated cardiomyopathy or myocarditis.

BACKGROUND Although the DNA of parvovirus B19 (B19V) is frequently detected in patients with dilated cardiomyopathy or myocarditis, whether the parvovirus causes disease is questionable, since even in healthy individuals the virus persists in various tissues. The same question applies to human bocavirus (HBoV). We have determined the prevalence and quantity of B19V and HBoV DNA in heart tissue of patients who were not experiencing virus-related heart diseases and analyzed whether the seroprevalence corresponded to DNA prevalence in the heart. METHODS Samples of left-atrium heart tissue and serum were obtained from 100 patients who underwent open-heart surgery. Serum immunoglobulin (Ig) G and IgM against proteins encoded by B19V and HBoV were detected by enzyme-linked immunoabsorption assay and immunoblotting. B19V and HBoV DNA concentrations were determined by quantitative real-time polymerase chain reaction (PCR) in heart tissue and serum samples. Nested PCRs for VP1, K71, and GT3 identified the B19V genotypes. RESULTS The prevalences of serum IgG specific for B19V and HBoV were 85% and 96%, respectively. Of all the patients, 85% had B19V DNA detected in heart tissues, and 4% displayed low-level B19V viremia, whereas only 5% of heart tissue samples and none of the serum samples demonstrated HBoV DNA. The sensitivity of B19V serological testing for B19V DNA in heart samples was 0.96 (95% confidence interval, 0.92-1.0). Specificity was 0.8 (95% confidence interval, 0.6-1.0), and the positive predictive value was 0.96 (95% confidence interval, 0.92-1.0). B19V genotypes 1 and 2 were present in 11% and 89% of heart tissues samples, respectively. B19V genotype 3 was not detected in any of the samples. CONCLUSIONS Our data suggest that B19V but not HBoV demonstrates a lifelong persistence in the heart. The detection of B19V DNA in heart tissue showed no correlation with clinical symptoms. We strongly recommend that serological testing become a standardized procedure for future studies, to obtain representative data concerning the prevalence of B19V in the heart.
Online Pattern Learning for Non-Negative Convolutive Sparse Coding

The unsupervised learning of spectro-temporal speech patterns is relevant in a broad range of tasks. Convolutive non-negative matrix factorization (CNMF) and its sparse version, convolutive non-negative sparse coding (CNSC), are powerful, related tools. A particular difficulty of CNMF/CNSC, however, is the high demand on computing power and memory, which can prohibit their application to large scale tasks. In this paper, we propose an online algorithm for CNMF and CNSC, which processes input data piece-by-piece and updates the learned patterns after the processing of each piece by using accumulated sufficient statistics. The online CNSC algorithm remarkably increases converge speed of the CNMF/CNSC pattern learning, thereby enabling its application to large scale tasks.