Miracle-dz/UniFAR-FTUs huggingface dataset:
Accelerating Medoids-based clustering with the Intel Many Integrated Core architecture

The Partition Around Medoids (PAM) is a variation of well known k-Means clustering algorithm where center of each cluster should be chosen as an object of clustered set of objects. PAM is used in a wide spectrum of applications, e.g. text analysis, bioinformatics, intelligent transportation systems, etc. There are approaches to speed up k-Means and PAM algorithms by means of graphic accelerators but there none for accelerators based on the Intel Many Integrated Core architecture. This paper presents a parallel version of PAM for the Intel Xeon Phi many-core coprocessor. Parallelization is based on the OpenMP technology. Loop operations are adapted to provide vectorization. Distance matrix is precomputed and stored in the coprocessor's memory. Experimental results are presented and confirm the efficiency of the algorithm.
An automatic text summarization using text features and singular value decomposition for popular articles in Indonesia language

The machine text summarization is of necessary with the existing of the enormous amount of popular articles. This work evaluates the latent semantic analysis technique to summarize popular articles in Indonesia language. The summarization performance are evaluated with respect to precision, recall, and F-measure. As results, the performance seems to be reasonably high particularly when the summarization level is 50%.
A semantic search system using query definitions

A Web Search Engine is designed to search for information over World Wide Web. When user submits a query, the generated information is often very large and inaccurate, that results in increased user perceived latency. In this paper, a novel approach of Definition-based search is being introduced that solves this problem. The proposed system searches and displays results based on themes, definitions and synonyms of the query keywords generally extracted from the web resources and stored in a separate definition repository. It extends the traditional keyword based web search in order to provide semantic and context based search. The system works as a layer above the keyword based search engine to generate sub-queries based on different meanings of query keywords, which in turn, are sent to the next layer i.e. to keyword-based search engine to perform Web search. The experiments show that this approach is efficient as it results in relevant pages and reduces the search space to a large extent.
A Low-Speed, High-Torque Motor Drive Using a Modular Multilevel Cascade Converter Based on Triple-Star Bridge Cells (MMCC-TSBC)

This paper provides experimental verification of a modular multilevel cascade converter based on triple-star bridge cells (MMCC-TSBC) for a low-speed, high-torque motor drive. The TSBC is one of direct ac-to-ac power converters capable of achieving bidirectional power flow and drawing/feeding three-phase sinusoidal input (supply-side) and output (motor-side) currents with any power factor at both sides. This paper designs, constructs, and tests a downscaled drive system combining a 400-V, 15-kW, phase-shifted-carrier PWM TSBC equipped with four bridge cells per cluster and a 320-V, 38-Hz, 6-pole, 15-kW induction motor loaded at the rated torque. Experimental waveforms obtained from the downscaled drive system verify stable operation across a broad range from a standstill to the rated speed, showing satisfactory start-up performance.
The Qualcomm/SnapTrack Wireless-Assisted GPS Hybrid Positioning System and Results from Initial Commercial Deployments

During 2001/2002, several major CDMA-based wireless network carriers deployed Location Based Services (LBS) in Japan, Korea and the USA. The carriers chose Qualcomms gpsOneTM end-to-end system solution for these deployments. The two main components of the system are Qualcomms gpsOneTM client implementation and SnapTracks Position Determination Entity (PDE) server product. The applications range from gaming and personal navigation services to commercial security and Enhanced 911 (E911). It is anticipated that the number of future applications will expand to include a wide range of value added services (VAS). This paper describes the network architectures, messaging protocols, and positioning measurements used to support these applications. Processing GPS, terrestrial and other measurements concurrently presents several challenges. These complexities and the characteristics of the various measurement types are discussed. Positioning results from actual network data are presented to demonstrate the initial performance achieved.
Zerumbone-loaded nanostructured lipid carriers: preparation, characterization, and antileukemic effect

Zerumbone, a natural dietary lipophilic compound with low water solubility (1.296 mg/L at 25°C) was used in this investigation. The zerumbone was loaded into nanostructured lipid carriers using a hot, high-pressure homogenization technique. The physicochemical properties of the zerumbone-loaded nanostructured lipid carriers (ZER-NLC) were determined. The ZER-NLC particles had an average size of 52.68 ± 0.1 nm and a polydispersity index of 0.29 ± 0.004 μm. Transmission electron microscopy showed that the particles were spherical in shape. The zeta potential of the ZER-NLC was −25.03 ± 1.24 mV, entrapment efficiency was 99.03%, and drug loading was 7.92%. In vitro drug release of zerumbone from ZER-NLC was 46.7%, and for a pure zerumbone dispersion was 90.5% over 48 hours, following a zero equation. Using the MTT (3-(4,5-dimethylthiazol-2-yl)-2,5-diphenyltetrazolium bromide) assay in human T-cell acute lymphoblastic leukemia (Jurkat) cells, the half maximal inhibitory concentration (IC50) of ZER-NLC was 5.64 ± 0.38 μg/mL, and for free zerumbone was 5.39 ± 0.43 μg/mL after 72 hours of treatment. This study strongly suggests that ZER-NLC have potential as a sustained-release drug carrier system for the treatment of leukemia.
A First Principles Investigation of the Mechanical Properties of g-TlN

We investigate the structure and mechanical properties of proposed graphene-like hexagonal thallium nitride monolayer (g-TlN) using first-principles calculations based on density-functional theory. Compared to graphene-like hexagonal boron nitride monolayer (g-BN), g-TlN is much softer, with 12% in-plane stiffness, 25%, 22%, and 20% ultimate strengths in armchair, zigzag, and biaxial strains respectively. However, g-TlN has a larger Poisson’s ratio, 0.69, about 3.1 times that of g-BN. It was found that the g-TlN also sustains much smaller strains before rupture. We obtained the second, third, fourth, and fifth order elastic constants for a rigorous continuum description of the elastic response of g-TlN. The second order elastic constants, including in-plane stiffness, are predicted to monotonically increase with pressure while the Poisson’s ratio monotonically decreases with increasing pressure.
Latter-day Saint Couples' Experience as Newlyweds

While there is a growing body of knowledge on newlyweds and the transitions they go through, very little is known about the experience of newlyweds who are also members of The Church of Jesus Christ of Latter-day Saints (LDS). The purpose of this study was to gain a picture of the LDS newlywed experience through in-depth interviews. Seeking to understand the overall experience of LDS newlyweds, this study was conducted using a phenomenological perspective to explore how these couples’ expectations of marriage correspond with their actual experience of marriage, how the LDS faith influenced the expectations and/or experience of marriage, and finally to uncover what external and internal factors helped or hindered their transition to marriage. In-depth interviews were conducted with six young LDS newlywed couples and were coded for themes. The main themes found include the pressure to marry, process of discovering sexual intimacy and an overall evaluation of expectations and experience. Implications for therapists and future research are indicated. Acknowledgments Looking back over the past year as I have worked on this project, there is so much I would like to say and so many people to whom I am grateful. I would first like to thank my entire committee in general for helping me through this process. Specifically, I would like to thank my committee chair, Dr. Sandra Stith. Without your support and encouragement I never would have been able to get to this final phase. Thanks for helping me know when to stop “obsessing” and when to just keep moving. I would like to thank my entire family, spread around the country far and wide. Thank you for your interest and support in this work. A very special thank you goes to my sisters whose experience was the impetus for this project. I would especially like to acknowledge my mother, father, and step-mother and grandparents. Your continued encouragement has helped me make this life-long dream a reality. I am deeply grateful to all of you. I have an extraordinary group of friends who have seen me through this process day in and day out. The friendships we have formed are life-long and just as valuable to me as the training we have received in this program. Lauren—thanks for letting me peak around the corner in the dungeon and vent when I needed to. Kathryn—thanks for being the example to which I looked to help me finish this project. You paved the way for me to see how this can be done and to see that it IS possible to finish before graduation! And Maggie—my thesis buddy. Thank you for encouraging me to step outside of my own box and see what I am truly passionate about. Thank you for the Saturdays spent in the GA office, the weekends of collaboration, plotting, and planning. You have been an inspiration and I am eternally grateful for your influence on this project.
Image Control: The Visual Rhetoric of President Obama

ABSTRACT President Barack Obama was elected upon a wave of change he described as “hope. ” On the front of image control, the Obama administration has offered little hope in providing greater access to information compared to previous administrations, exemplified by the exclusion of photojournalists from a number of events. Using Althusser's Ideological State Apparatus and visual rhetoric, this analysis examines the process of image control and interprets official photographs from these events to argue against such practices. Findings suggest that photographer exclusion altered media rituals, allowed through White House power to change its relationship with the press and communicate directly with the public through new media channels. Image control seen in analyzed photographs produced mundane perspectives and presidential legitimacy conveyed in symbols and meanings that reinforce norms, and potentially lessen impact of race. Implications for Obama's legacy and future White House practices are discussed.
Radiosensitization and downregulation of heterogeneous nuclear ribonucleoprotein K (hnRNP K) upon inhibition of mitogen/extracellular signal-regulated kinase (MEK) in malignant melanoma cells

Background Heterogeneous nuclear ribonucleoprotein K (hnRNP K) is an important cofactor in the p53-mediated DNA damage response pathway upon ionizing radiation (IR) and exerts anti-apoptotic effects also independent of p53 pathway activation. Furthermore, hnRNP K is overexpressed in various neoplasms including malignant melanoma (MM). Here, we investigate the role of hnRNP K in the radioresistance of MM cells. Methods and results Our results show cytoplasmic expression of hnRNP K in human MM surgical specimens, but not in benign nevi, and a quick dose- and time-dependent upregulation in response to IR accompanied by cytoplasmic redistribution of the protein in the IPC-298 cellular tumor model carrying an activating NRAS mutation (p.Q61L). SiRNA-based knockdown of hnRNP K induced a delayed decline in γH2AX/53BP1-positive DNA repair foci upon IR. Pharmacological interference with MAPK signaling abrogated ERK phosphorylation, diminished cellular hnRNP K levels, impaired γH2AX/53BP1-foci repair and proliferative capability and increased apoptosis comparable to the observed hnRNP K knockdown phenotype in IPC-298 cells. Conclusion Our results indicate that pharmacological interference with MAPK signaling increases vulnerability of NRAS-mutant malignant melanoma cells to ionizing radiation along with downregulation of endogenous hnRNP K and point towards a possible use for combined MEK inhibition and localized radiation therapy of MM in the NRAS-mutant setting where BRAF inhibitors offer no clinical benefit.
Integrated Radio Resource Management Strategy for MIMO-OFDM System on Cross-Layer Architecture

The next generation networks are expected to provide heterogeneous services with higher data rates and diverse quality of service (QoS) requirements. For the major challenges we are confronted with nowadays, this paper establishes cross-layer architecture among application (AP) layer, media access control (MAC) layer and physical (PHY) layer, upon which an integrated radio resource management (RRM) strategy is proposed to explore the mechanisms of resource management. We design utility functions to characterize the satisfactory level of users subject to system resource constraints, according to their types of service and corresponding QoS requirements. Simulation results show that this design of integrated RRM strategy on cross-layer architecture achieves much better performances on resource use and QoS provision.
Analysis of AspectJ Programs

Program Analysis is increasingly used to enhance program understanding and ﬁnd ﬂaws in programs. In contrast to testing, it can guarantee properties of a program. Up to now, in the context of program analysis, aspect oriented programming (AOP) has mostly been used for program instrumentation (tracing), but has not been itself subject to analytical methods. This paper identi-ﬁes sources of ﬂaws in AOP and suggests that program analysis could be used to avoid these pitfalls. The subject of this paper is not to present any solu-tion for identiﬁed problems, but presents ideas how a solution might be approached.
A Critical Evaluation of Indentation Techniques for Measuring Fracture Toughness: I

The application of indentation techniques to the evaluation of fracture toughness is examined critically, in two parts. In this first part, attention is focused on an approach which involves direct measurement of Vickers-produced radial cracks as a function of indentation load. A theoretical basis for the method is first established, in terms of elastic/plastic indentation fracture mechanics. It is thereby asserted that the key to the radial crack response lies in the residual component of the contact field. This residual term has important implications concerning the crack evolution, including the possibility of post indentation slow growth under environment-sensitive conditions. Fractographic observations of cracks in selected “reference” materials are used to determine the magnitude of this effect and to investigate other potential complications associated with departures from ideal indentation fracture behavior. The data from these observations provide a convenient calibration of the Indentation toughness equations for general application to other well-behaved ceramics. The technique is uniquely simple in procedure and economic in its use of material.
Acoustic and Lexical Modeling Techniques for Accented Speech Recognition

Speech interfaces are becoming pervasive among the common public with the prevalence of smart phones and cloud-based computing. This pushes Automatic Speech Recognition (ASR) systems to handle wide range of environments including different channels, noise conditions and speakers with varying accents. This thesis focuses on the impact of speakers’ accents on the ASR models and techniques to make them robust to such variations. State-of-the-art large vocabulary ASRs perform poorly when presented with accented speech, that is either unseen or under-represented in the training data. Current approaches to handle accent variations mainly involve adaptation of acoustic models or the pronunciation dictionary. This thesis examines novel adaptation algorithms capable of modeling changes in phonological realizations, that uniquely characterize accent variations. Techniques that can exploit the contemporary availability of extensive, albeit unlabeled data resources are also investigated. We design experiments under various scenarios where accent adaptation is critical for speech recognition. In target accent adaptation setup, a source ASR trained on resourcerich accent(s) is adapted to a target accent with limited adaptation data. We propose semi-continuous decision tree adaptation and multi-gram pronunciation models to efficiently model the pronunciation changes between source and target accents. Active and semi-supervised learning are studied to extend the improvements obtained from supervised adaptation. We introduce relevance criteria based data selection to sample additional accent-specific data from large, unlabeled speech corpora with multiple accents. Finally, we generalize the target accent adaptation techniques to handle multiple accents in the training set. We formulate an accent adaptive training framework using factorized models with shared canonical parameters and accent-specific modules. Our proposed algorithms will be evaluated on Arabic and English accents and compared against existing adaptation techniques.
Modelling Survival Events with Longitudinal Data Measured with Error

In survival analysis, time-dependent covariates are usually present as longitudinal data collected periodically and measured with error. The longitudinal data can be assumed to follow a linear mixed effect model and Cox regression models may be used for modelling of survival events. The hazard rate of survival times depends on the underlying time-dependent covariate measured with error, which may be described by random effects. Most existing methods proposed for such models assume a parametric distribution assumption on the random effects and specify a normally distributed error term for the linear mixed effect model. These assumptions may not be always valid in practice. In this paper we propose a new likelihood method for Cox regression models with error-contaminated time-dependent covariates. The proposed method does not require any parametric distribution assumption on random effects and random errors. Asymptotic properties for parameter estimators are provided. Simulation results show that under certain situations the proposed methods are more efficient than the existing methods.
WZ Sagittae: Hubble Space Telescope Spectroscopy of the Cooling of the White Dwarf after the 2001 Outburst

Following an outburst in 2001 July, the UV flux of WZ Sge has declined slowly toward preoutburst levels. Here we describe new 1150-1710 Å Hubble Space Telescope STIS spectra of WZ Sge obtained between 2002 April and 2003 March to follow the decline. A combined analysis of these and spectra obtained in the fall of 2001 show that if log g = 8.5, then the white dwarf temperature decreased from 23,400 K in 2001 October, shortly after the steady decline of the system began, to 15,900 K 17 months later. The UV flux in 2003 March was still 2.4 times higher than that measured prior to the outburst, so the system was still recovering from the outburst. During this period, the shape of the spectrum and the flux from the system are consistent with a log g = 8.5 and 0.9 M☉ white dwarf at the astrometrically determined distance to WZ Sge. Although the spectrum from 2001 September resembles that of a white dwarf at a temperature of 28,200 K, the implied radius is smaller than in the remainder of the observations. If the entire white dwarf was visible in 2001 September, then either a second component, such as the disk emission, was distorting the spectrum or, more likely, the temperature of the white dwarf photosphere was not uniform then. The metal lines in the spectra of WZ Sge have weakened with time. Model fits that allow for material along the line of sight to the white dwarf photosphere are substantial improvements over models that assume all the lines arise from the photosphere. This obviates the need to explain very unusual abundance ratios in the photosphere and complicates the determination of the rotation rate of the white dwarf.
2.1 Estimators Defined by Minimization

Section 1 explains why the Chapter will be mostly concerned with M-estimators, even though the techniques are more widely applicable. Section 2 presents a variation on Wald's original argument for consistency of maximum likelihood estimators. Section 3 considers some of the problems that can arise for estimators that range over noncompact parameter spaces, or for models that cannot be successfully compactified. Section 4 establishes some basic comparison principles for deterministic functions, which lead to limit theorems when applied to sample paths of random criterion functions. Section ? presents a method that typically succeeds because of existence of a suitable uniform law of large numbers. Section ? presents a high-level result for consistency, in terms of uniformity assumptions about the behaviour of the criterion function. The statistics and econometrics literatures contain a huge number of the-Consistency::minimization orems that establish consistency of different types of estimators, that is, theorems that prove convergence in some probabilistic sense of an estimator to some desired limiting value. The variety of different consistency theorems can be overwhelming for a new researcher. In my opinion, any attempt at cataloging all the variations on the consistency theme is a not particularly fruitful activity. I think it is much better to concentrate attention on a smaller number of general principles, accepting that new applications might require some tweaking of the standard methods in order to accommodate the peculiarites of particular examples. Accordingly, this chapter will focus mainly on a particular type of es-timator, namely those estimators defined by minimization (or maximiza-tion) of a some stochastic process. Maximum likelihood estimators and
Dynamic contrast‐enhanced MRI in mice at high field: Estimation of the arterial input function can be achieved by phase imaging

Quantitative dynamic contrast‐enhanced MRI requires an accurate arterial input function (AIF). At high field, increased susceptibility effects and decreased longitudinal relaxivity of contrast agents lead to predominant T2* effects in blood vessels, producing a dip in signal during passage of the contrast agent bolus. This study determined phase‐derived AIFs in mice at 11.7 T.
Exo1: A new chemical inhibitor of the exocytic pathway

A phenotypic screen was used to search for drug-like molecules that can interfere with specific steps in membrane traffic. 2-(4-Fluorobenzoylamino)-benzoic acid methyl ester (Exo1), identified in this screen, induces a rapid collapse of the Golgi to the endoplasmic reticulum, thus acutely inhibiting the traffic emanating from the endoplasmic reticulum. Like Brefeldin A (BFA), Exo1 induces the rapid release of ADP-ribosylation factor (ARF) 1 from Golgi membranes but has less effect on the organization of the trans-Golgi network. Our data indicate that Exo1 acts by a different mechanism from BFA. Unlike BFA, Exo1 does not induce the ADP-ribosylation of CtBP/Bars50 and does not interfere with the activity of guanine nucleotide exchange factors specific for Golgi-based ARFs. Thus, Exo1 allows the fatty acid exchange activity of Bars50 to be distinguished from ARF1 activity in the control of Golgi tubulation.