Miracle-dz/UniFAR-FTUs huggingface dataset:
Optical measurement of virtual reality headset performance

Kapanen, Sakari Optical measurement of virtual reality headset performance Master’s thesis Department of Physics, University of Jyväskylä, 2018, 74 pages. A measurement method and an embedded camera module were developed for measuring the performance of the tracking system of virtual reality headsets. The measurement setup is an end-to-end one where a robot moves the headset and the camera measures the changes of the display content. The objective is to optically measure the accuracy of the headset’s tracking system by imaging the content on the device’s display, synchronized to the display refresh. The thesis work focused on the development of the smart camera and the related computer vision algorithms. In the measurement, a three-dimensional target object with detectable points is shown on display. By locating these points in the projected image, the pose (translation and rotation) of the virtual camera can be estimated. From this pose, one can deduce the head pose that is estimated by the headset’s tracking system. By measuring the pose during different motion sequences performed by the robot, one can probe the tracking system for inaccuracies such as drifting and jitter. A simple pose estimation method based on linear least squares fitting was developed for measuring small pose changes. The method was characterized by Monte Carlo simulation against a non-linear pose estimation method implemented in the OpenCV computer vision library, with noise added to the source data to represent real measurement conditions. It was found that a planar target object caused ambiguities between the pose variables. In the simulations, adding an off-plane point to the target made the problem better conditioned and less sensitive to noise. Error estimates were derived for the new method. In addition to simulations, measurements with the robot and the HTC Vive headset were also performed.
Health Tourism, Customer Satisfaction and Quality of Life: The Role of Specialty Hospitals

Purpose – The purpose of this research is to clarify the role of specialty hospitals in improving patients' health and their quality of life. The study is focused on establishing how patients perceive the influence of the services of a specialty hospital for medical rehabilitation on their physical quality of life and life satisfaction. Further, the goal is to establish if there is a connection between the patients’ perception of physical quality of life and their satisfaction with the hospital services, and to establish whether the satisfaction of patients influences their loyalty to the hospital. Methodology – The paper is based on the survey of a sample of patients who used health services of a specialty hospital for medical rehabilitation that contributes to the Croatian health tourism market. The WHOQOL-BREF quality of life assessment was used in the research. Four hypotheses were tested by implementing partial least square structural equation modelling (PLSSEM). Findings – Results of the research conducted show that staying in a specialty hospital for medical rehabilitation significantly improves the physical quality of life of patients which is reflected in life satisfaction and customer satisfaction. Research has also confirmed that the patients' satisfaction has a positive impact on their loyalty to the hospital, a precondition to successful business performance on the health tourism market. Contribution – This paper fills the gap in the literature where the topic of health tourism in the particular context of specialty hospitals is discussed. In a practical sense, the contribution of this paper is evident in proving the connection between the perception of the influence of health services on the improvement of health and satisfaction with hospital services, and their influence on the patients’ satisfaction and loyalty to the hospital.
Optimum Design of One-Way Concrete Slabs Cast Against Textile Reinforced Concrete Stay-in-Place Formwork Elements

This study presents a conceptual design process for one-way reinforced concrete slabs cast over Textile Reinforced Concrete (TRC) Stay-in-Place (SiP) formwork elements, aiming at the minimization of the composite slab cost satisfying Ultimate Limit State (ULS) and Serviceability Limit State (SLS) design criteria. The thin-walled TRC element is considered to participate in the structural behaviour of the composite slab. This distinct function of the TRC element (as formwork and as a part of a composite element) distinguishes the design procedure into two States: a Temporary and a Permanent one. Design parameters such as the type of the textile reinforcement (material), the geometry of the TRC cross-section, the flexural strength of the fine-grained concrete in the TRC element and the compressive strength of the cast in-situ concrete are considered as the main optimization variables.
Directions in conservation biology

Conservation biology has two threads: the small-population paradigm which deals with the erect of smallness on the persistence of a population, and the declining-population paradigm which deals with the cause of smallness and its cure. The processes relevant to the small-population paradigm are amenable to theoretical examination because they generalize across species and are subsumed by an inclusive higher category: stochasticity. In contrast, the processes relevant to the declining-population paradigm are essentially humdrum, being not one but many. So far they have defied tight generalization and hence are of scant theoretical interest. The small-population paradigm has not yet contributed significantly to conserving endangered species in the wild because it treats an erect (smallness) as if it were a cause
The Effects of Stereotype Threat and Power on Women's and Men's Outcomes in Face-to-Face and E-mail Negotiations

COPYRIGHT 2015 BY PSI CHI, THE INTERNATIONAL HONOR SOCIETY IN PSYCHOLOGY (VOL. 20, NO. 3/ISSN 2164-8204) *Faculty mentor Sex differences in salary negotiation have been suggested as one of the causes of the “glass-ceiling,” the pattern that women do not advance as far in their careers as men do (Stuhlmacher & Walters, 1999). Men are four times more likely than women to negotiate for their salary and, when it comes to first job offers, only 7% of women negotiate whereas 58% of men do (Babcock & Laschever, 2003). According to a meta-analysis (Stuhlmacher & Walters, 1999), when women do negotiate, they negotiate for lower profits than men. These sex differences in negotiation are particularly problematic given that the amount of money asked for during a negotiation largely determines the outcome salary (Barron, 2003). The purpose of the current research was to better understand multiple factors that may increase or decrease gender differences in negotiation outcomes. Because women are stereotyped as being less effective negotiators than men (Kray, Thompson, & Galinsky, 2001), they tend to negotiate less successfully than men when they experience stereotype threat (Kray et al., 2001; Tellhed & Björklund, 2011). The current research examined situations that may minimize the effects of stereotype threat and reduce the salary gap. Negotiation outcomes were explored in situations in which the salience of sex varies (face-to-face vs. e-mail negotiations and same vs. mixed sex negotiations) and in situations in which sex differences were likely to be minimized when women were in a position of power. ABSTRACT. Stereotypes that women are less assertive and competitive than men lead women to experience stereotype threat in salary negotiations (Tellhed & Björklund, 2011), resulting in sex differences in salaries. The present experiment tested whether the effects of stereotype threat on negotiations are moderated by variables that may decrease the salience of sex such as dyad composition (same vs. mixed-sex), mode of communication (face-to-face vs. e-mail), and power. Ninety-six undergraduate participants (37 men, 59 women) negotiated for a hypothetical salary as well as an actual monetary award. As predicted, stereotype threat negatively affected women’s outcomes and positively affected men’s outcomes in mixed-sex pairs but not in same-sex pairs, Wald Chi-Square = 9.85, p = . 002. Interestingly, there were no differences between the face-to-face and e-mail negotiations; both forms of negotiation were affected by stereotype threat in mixed-sex pairs. The basic findings of the present study were consistent with past research; participants assigned to a position of power were more successful in the negotiation regardless of their sex, Wald Chi-Square = 22.74, p < . 001, d = 0.49. Limitations, implications, and possible ways to reduce the effects of stereotype threat are discussed. The Effects of Stereotype Threat and Power on Women’s and Men’s Outcomes in Face-to-Face and E-mail Negotiations
Spatial and temporal variability in marsh-water column interactions in a southeastern USA salt marsh estuary

We measured the exchange of inorganic nutrients and particulate matter between the Spartina alterniflora marshes and the adjacent estuary of Cumberland Island, Georgia, USA, beginning in January 1991. Tidal fluxes were quantified using throughflow flumes at 3 sites within 10 km of one another. These sites represent a spatial gradient in geologic age, sediment characteristics, marsh topography and elevation, and exposure to open water that is often found in transgressive marshbarrier complexes. They exhibited large variabhty in frequency and duration of tidal inundation and in susceptibhty of the marshes to wind and wave erosion. The flumes were sampled seasonally and on consecutive days, and we present flux data from 7 samplings. We also investigated short-term temporal variab~lity in nutrient and particulate fluxes by sampling one flume 4 times in 6 days. Temporal vanability in total and organic suspended sediment fluxes, which was largely related to quickly changing wind and wave conditions, was greater than spatial variability measured during the same time. Dissolved constituent fluxes were generally more variable across space, suggesting that day-to-day variabhty in dissolved nutrient exchanges was not a major contribution to spatial variability. Dissolved inorganic nutrient fluxes (as ammonium, nitrate+nitrite, and soluble reactive phosphorus) followed a spatial pattern of highest nutrient uptake at the geologically young marsh site. This marsh also consistently imported &ssolved organic carbon. This site has the lowest absolute elevation of the 3 sites and a ramp-like topographic profile, and its young geologic age suggests that it is also ecologically immature. Fluxes of dissolved constituents at this site were negatively related to the area of marsh inundated, switching to export when large areas of the young marsh were inundated for long periods of time. This marsh also generally exported total and organic sed~n~ents ; data from the other 2 sites were more variable. Sedlrnent fluxes from the older marsh sites were positively related to slack high tide water level and area inundated, switching from particulates release to uptake only when the highest portions of these marshes were inundated. Most Cumberland Island marshes thus appear to take up sedirnents only when tidal heights exceed about 2.3 m above National Geodetic Vertical Datum, corresponding to tides where the moon is within 20 % of new or full phase. Our data also suggest definite differences in the way the geologically young marshes interact with the inundating water column compared to geologically older marshes in the same estuarine system.
HUBUNGAN INTENSITAS MENGAKSES SOSIAL MEDIA TERHADAP PERILAKU BELAJAR MATA PELAJARAN PRODUKTIF PADA SISWAKELAS XI JASA BOGA DI SMK N 3 KLATEN

HUBUNGAN INTENSITAS MENGAKSES SOSIAL MEDIA TERHADAP PERILAKU BELAJAR MATA PELAJARAN PRODUKTIF PADA SISWA KELAS XI JASA BOGA DI SMK N 3 KLATEN Oleh: Yuzi Akbari Vindita Riyanti NIM. 12511241021 ABSTRAK Tujuan penelitian ini yaitu untuk mengetahui: (1) Intensitas mengakses sosial media pada siswa kelas XI Jasa Boga di SMK N 3 Klaten (2) Perilaku belajarmata pelajaran produktif pada siswa kelas XI Jasa Boga di SMK N 3 Klaten (3) Hubungan intensitas mengakses sosial media terhadap perilaku belajar mata pelajaran produktif pada siswa kelas XI Jasa Boga di SMK N 3 Klaten. Penelitian ini merupakan penelitian survey deskriptif dengan jenis deskriptif kuantitatif. Populasi penelitian adalah siswa kelas XI Jasa Boga di SMK Negeri 3 Klaten tahun ajaran 2015/2016 yang berjumlah 88 siswa dengan jenis penelitian populasi. Teknik pengumpulan data menggunakan instrumen angket. Teknik pengukurannya menggunakan skala likert dengan 4 alternatif jawaban. Analisis data yang digunakan dalam penelitian ini adalah analisis deskriptif dan analisis product moment. Hasil penelitian diperoleh: 1) Aspek Intensitas mengakses sosial media pada siswa kelas XI Jasa Boga di SMK N 3 Klaten dikelompokkan dalam kategori tinggi, yaitu skor rata rata siswa 94,36 berada pada interval 88,01<X ≤104,01. 2) Aspek perilaku belajar mata pelajaran produktif pada siswa kelas XI Jasa Boga di SMK N 3 Klaten dikelompokkan dalam kategori baik, skor rata- rata siswa 72,97 berada dalam interval 66,01<X ≤78,03. 3) Ada hubungan dan signifikan antara intensitas mengakses sosial media terhadap perilaku belajar mata pelajaran produktif pada siswa kelas XI Jasa Boga di SMK N 3 Klaten dengan korelasi lemah sebesar 0,305. Kata kunci: Intensitas, Sosial Media, Perilaku Belajar, Mata Pelajaran Produktif
The interaction between individual and industry momentum

In a developing country in which the majority investors are individuals, the stock market is a contrarian one. In contrast, in a developed country in which the majority investors are institutions, the stock market is a momentum one. Furthermore, the industry type is important in explaining the momentum phenomena, with different effects in momentum and contrarian countries. Specifically, industry factors will decrease the momentum phenomenon and increase the contrarian one. The investment portfolios presented in this work are developed by buying individual stocks which are part of a winning industry in a contrarian country, and individual stocks which are part of a median industry in a momentum country, thus earning more profits.
Coherent interannual and decadal variations in the atmosphere‐ocean system

We investigate the source of poleward propagating atmospheric zonal wind anomalies, originating at the equator and penetrating to high latitudes in both hemispheres in conjunction with ENSO [ Dickey et al., 1992 ], and report the discovery of similar variability on decadal and longer timescales. Since atmospheric dissipation times are generally on the order of a month or less, we examine the ocean as a “memory” source for these globally coherent anomalies. This hypothesis is substantiated by the observation of complementary oscillation in the sea surface temperature (SST) field; further, we detect a robust decadal variability (∼10–12 yrs) in both the SST and contemporaneous atmospheric angular momentum (AAM) series. Analyzing GISST SST data beginning in 1902, we confirm this decadal mode and find signatures of longer (multidecadal) SST variability centered in the equatorial and North Pacific.
Relevance of Discretionary Accruals Information (DAI) in Ohlson Model: The Case of Mexico

This study applied the modified Jonesmodel (1991) for selected companies of Mexico. This model aims to assess the impact of Discretionary Accrual Information (DAI) on financial reporting statements, in order to identify the value relevance of "earnings quality". We applied methodological criteria of Chung et al (2005) and Mukit & Iskandar (2009). We analyzed financial information of the 35 stock included in the Index of Prices and Quotations (IPC) of the Mexican Stock Exchange (BMV) for the period 2000 to 2011. 19 companies met the specifications of the model, for 48 quarters of information. The analysis was done in three parts: first, an analysis of the modified Jonesmodel under panel data considerations by using fixed effects and adjustments of performing autocorrelation of order 1; second, a correlation analysis between the residuals of the modified Jones´ model and the return of stock price in 3 annual closings years of study: 2007, 2008 and 2009; and third, we incorporated this variable (DAI) in the Ohlson model (of the financial and corporate accounting literature) and we tested it with panel data analysis, under fixed effects, throughout the study period.
BIG DATA VISUALISATION IN IMMERSIVE VIRTUAL REALITY ENVIRONMENTS: EMBODIED PHENOMENOLOGICAL PERSPECTIVES TO INTERACTION

Ever-increasing human-computer interactions with various tracking technologies are creating unprecedented amounts of data. The amount and complexity of this ‘big data’ creates various challenges for its storage, analysis and presentation, but at the same time, big data is suggested to open up opportunities for those who can leverage it. This paper will discuss using immersive virtual reality environments for visualising, interacting and making sense of big data. It reveals that many of the developed applications do not justify their approaches to presentation or interaction. A phenomenological perspective of embodied perception and interaction is discussed to ground future developments.
Autonomous UAV for Suspicious Action Detection using Pictorial Human Pose Estimation and Classiﬁcation

Visual autonomous systems capable of monitoring crowded areas and alerting the authorities in occurrence of a suspicious action can play a vital role in controlling crime rate. Previous atte mpts have been made to monitor crime using posture recognition but nothing exclusive to investigating actions of people in large populated area has been cited. In order resolve this shortcoming, we propose an autonomous unmanned aerial vehicle (UAV) visual surveillance system that locates humans in image frames followed by pose estimation using weak constraints on position, appearance of body parts and image parsing. The estimated pose, represented as a pictorial structure, is flagged using the proposed Hough Orientation Calculator (HOC) on close resemblance with any pose in the suspicious action dataset. The robustness of the system is demonstrated on videos recorded using a UAV with no prior knowledge of background, lighting or location and scale of the human in the image. The system produces an accuracy of 71% and can also be applied on various other video sources such as CCTV camera.
Maximum electrical conductivity of a network of uniform wires: the Lemlich law as an upper bound

The Lemlich law provides a simple estimate of the relative conductivity of a three-dimensional foam, as one third of its liquid fraction. This is based on an expression for the conductivity of a network of uniform wires (conducting lines). We show this to be an exact upper bound for the conductivity, orientationally averaged in the case of anisotropic systems. We discuss the dependance of conductivity on the geometry of the network structure and establish two necessary and sufficient conditions to maximize the conductivity. We note the connection between this problem and that of line-length minimization and also that between anisotropic conductivity and stress for a two-dimensional foam. These results are illustrated by various numerical simulations of network conductivities. The theorems presented in this paper may also be applied to the thermal conductivity and the permeability of a network.
The mechanisms underlying Mycobacterium tuberculosis virulence granted by the nrp gene

vii RESUMO . ix FIGURE INDEX . xiii LIST OF ABBREVIATIONS . xv INTRODUCTION . 1 1. Epidemiology . 3 2. Early events in the immune response to Mtb . 4 2.1. Transmission. 4 2.2. Innate immune response . 4 2.2.1. Recognition . 4 2.2.2. Inflammatory mediators . 4 2.2.2.1. IL-12p40 homodimers and heterodimers . 5 2.2.2.2. IL-6 . 6 2.2.2.3. TNF-α . 6 2.2.2.4 The IL-1β – Eicosanoid – Type-1 IFN network . 6 2.2.2.5. Chemokines . 8 2.3. Adaptive immune response. 9 3. Host-pathogen interactions. 12 3.1. The cell wall of Mtb and its impact in host-pathogen interactions . 12 3.1. 1. TDM . 14 3.1. 2. PDIMs . 14 3.1. 3. SLs . 15 3.1. 4. Other cell wall lipids . 15 4. The role of Rv0101 in Mtb virulence . 16 AIMS . 17 METHODS . 21 1. Bacteria and Infection . 23 2. Animals . 23 3. Differentiation and Infection of Bone Marrow-Derived Macrophages (BMDM) and Peritoneal Macrophages. 23 4. Sample Collection and Preparation of Single Cell Suspensions . 24
Design of a Quadrotor System for an Autonomous Indoor Exploration

This paper describes the hardware components and the embedded software of a self-designed unmanned aerial system (UAS) to fulfill the task of an autonomous indoor exploration. The project, the paper is based on, was conducted at the University of Braunschweig - Institute of Technology by students and scientific researchers studying and working at the Institute of Flight Guidance. The paper is structured as follows. The first part deals with the development, selection, collocation and assembling of the appropriate hardware to obtain a reliable and robust system which suits the task of controlling the UAS, collecting information about the environment and providing the computational resources to execute the implemented algorithms. The second part deals with the software architecture that generates the control commands for the quadrotor UAS and ensures the execution of the mission by the stepwise fulfillment of single tasks.
LONGITUDINAL AND TRANSVERSE DISPERSION IN POROUS MEDIA 1247

In the present work, we have analysed the experimental data presented in literature to characterize dispersion in porous media, at different dispersion regimes. The vast amount of data obtained by our group, together with the extensive data available from other sources, mostly for air and water at room temperature, provide a very detailed representation of the functions PeT 1⁄4 f1 (Pem, Sc) and PeL 1⁄4 f2 (Pem, Sc). Empirical correlations are presented for the prediction of the dispersion coefficients (DT and DL) over the entire range of practical values of Schmidt number and Peclet number. The simple mathematical expressions represent the data available, in literature, with good accuracy and they are shown to be a significant improvement over previous correlations.
Analysis and Modelling of a Multilevel Inverter in Distribution System with FACTS Capability

This paper presents the design of a multi-level inverter with Flexible AC transmission systems (FACTS) capability for small to medium size (10-20kW) permanent-magnet wind applications using modular multi-level converter (MMC) topology. The aim of the paper is to design a new type of inverter with Distribution static synchronous compensator (D-STATCOM) option to provide utilities with more control on active and reactive power transfer of distribution lines. The proposed inverter is placed between the renewable energy source, specifically a wind turbine, and the distribution grid in order to fix the power factor (PF) of the grid at a target value, regardless of wind speed, by regulating active and reactive power required by the grid. The D-STATCOM inverter is capable of controlling active and reactive power by controlling the phase angle (�� ) and modulation index (m), respectively. The unique contribution of the proposed work is to combine the two concepts of inverter and D-STATCOM using a voltage source converter (VSC) multi-level topology in a single unit without additional cost. Simulations of the proposed inverter, with 11 levels, have been conducted in MATLAB/Simulink. The main function of the proposed inverter is to transfer the active power to the grid as well as keeping the powerfactor (PF) of the local power lines constant at a target PF regardless of the incoming active power from the wind turbine.